JB 8526-1997 Safety specification for high pressure water jet cleaning operations

This standard specifies the definition of high-pressure water jet cleaning operations with a pressure of not less than 10MPa, cleaning operation team (personnel training, protection and accidents), pre-operation preparation procedures and equipment maintenance. JB 8526-1997 Safety Specification for High-Pressure Water Jet Cleaning Operations JB8526-1997 Standard Download Decompression Password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB 8526-1997
Safety Specifications for High-Pressure Water Jet Cleaning Operations
1997-3-(4) Issued
Ministry of Machinery Industry of the People's Republic of China
1997-10-01 Implementation
138526-1997
Cleaning Maintenance
Thank you before operation
Medical record maintenance.
Can record A (standard)
Attached below (standard)
Business water jet cleaning health prevention and control products
Shangshui. Water jet cleaning operation standards and operation cycle B8526-1997
This standard is based on the technical status and usage conditions of commercial water jet equipment, and is a member of the American Water Jet Technology Association (WAWA). "The scientific use specification of high-pressure convection equipment for handheld operations. From the perspective of the rate of operation, first of all, it is not limited to handheld operations. It defines the calcium composition of commercial water jet equipment. Supplement the safety factor, lamp mouth, container cleaning, spray gun type, random spray nozzle, and pressure classification. The non-standard Appendix A and Appendix B are standard records. The original standard of the Ministry of Machinery and Equipment of the Ministry of Quality and Technical Requirements for High-pressure Water Jet Cleaning Equipment will be issued and centralized. Non-standard reform unit: Machinery Industry Hefei General Machinery Research Institute A Main drafters of the standard: Xue Shengtiao, Du Hongping, Chen Zhengwen. 1 Scope
General Machinery Industry Standard of the People's Republic of China
High-pressure water jet cleaning operation
Safety specification
JB8561997
1.1 This standard is now The pressure of the high-pressure water flow cleaning operation is not less than 31nMFa. The operation team must be trained, accompanied and supervised! 1.2 The equipment maintenance of the high-pressure clothing Xie Zhiqing flow is sent to the layer, broken and removed (first), and run away, etc. 1. There is no standard distance between the old and the main high-pressure water flow equipment, hereinafter referred to as the equipment specification, test and use. 1. This standard cannot replace the training of the batch of pollution and maintenance control. The training must be received by the professional manager to enable us to have the knowledge and ability of the equipment flow operation.
2 General provisions
2.1 This international standard is a piece of standard industry standard for jet equipment. The safety of the industry is mandatory: 2.2 The room requires the heart to control the flow. You are happy to have a risk. And we can integrate them into our cards. Therefore, all high-pressure jet industry parts that have not been completed. 3.1 The material flow and nozzle outflow will form different flow beams, the flow structure of the jet depends on the three forces of the oil, 3.1. Low-pressure water jets work under a pressure of less than MPa, and most of the equipment is a centrifugal pump system, 3.2 High-pressure water jets work under a pressure of less than 1C--1GMPa, and most of the equipment is a high-pressure water jet, 3.1.3 Super-pressure water jets work under a pressure of not less than 10 MPa, and most of the equipment is a high-pressure point and point increaser, 3.2 The jet is fixed in place before the jet hits the object, and the jet is usually combined with the jet, which can make the abrasive material eat the cavity, and then the radius is maintained to form a fine flow (see the country!). Figure
Two-component separation structure diagram
3.3 High-pressure water jet equipment Various pressure-related water jet equipment: It should measure the energy release rate of the fluid contained in the jet machine. Its spray machine should meet the requirements of the Ministry of Industry 997-03.n4 standard
1997-10 price implementation
J58526-1997
The end function is to convert the fluid body into a sheath and inject variable energy into the flow beam. The closed flow is called the particle system, which can be chemically opened.
Equipment components:
High-pressure jet equipment
(hereinafter referred to as pump)
protection system
execution system
auxiliary system
The complete set of equipment is provided by the customer and manufactured by you. High pressure image unit
boost unit
all valves, adjustment (falling flow unloading). Control valves, etc., heart control constant, microcomputer control console, etc.
spray, spray rod, head, etc.
material jet total
two-dimensional learning
"jade force length, drag and, feed mechanism, etc.
3.4 ​​pressure pump, through the change of active area to drive the flow of the jade force applied by the flow pump: its driving wave is only 3.5, high pressure system uses 1 pressure pump water pressure. And the pressure water tank overflows to the rush head, this type of system can be mobile or fixed, often using a positive single cold system type to ensure the constant extension of the system speed. The above series of the library provides the following:
city":
[) Model, system number and production, r year;
Reverse person: flow plate, two/min
Yufang, MPal.
3. Carefully grab the old control valve of the spray gun, the capital standard private spray look at the total or (it includes one or more spray intervals) block · also sweep the support and throw the light, lock composition Figure 2. It is usually pointed out by the commercial pressure management point commercial system commander. The belt can be pressed to release the pressure control flash mode further: if the high pressure is quickly amplified when the big closure is discharged: if the river is closed, the water pressure is still maintained in the system, then the flow gun, E
High positive sound assembly
Figure 2 Spray gun
3.6.1 Flexible cough bad still nozzle or nozzle to deliver pressure for the flexible micro-composition model general. 36.2 Rigid spray nozzle or nozzle to deliver water to the rigid direction of the pressure
special assembly
3. The nozzle has a change of the inertia and the current shape of the wave flow (the nozzle can limit the reverse flow of water and the source of the shape of the water city
3. The self-rotating nozzle is a nozzle connected to a hose or a single, including an axis and a rotating body. The two are not connected with the design box. There is no need to attach the nozzle to any direction. The impact of the jet becomes the starting point of the nozzle. 3.7.2 The special design of the straight pipe of the nozzle is often used to ensure the fan-shaped instantaneous azimuth: the standard cost of the non-listed benefits. To carry out the national support,
two-dimensional rotating nozzle means a family of rotating nozzles that rotate around an axis with a small shape and the elimination of The diameter of the inner wall of the irrigation device is suitable for two types of rotation and continuous adjustment. JB8526-1997 3.7.4 One-dimensional rotating head The rotary nozzle can rotate around two mutually multiplied axes, and its speed can be adjusted: according to the rotation mode, it can be divided into two types: strong brush (air neck> release rotation and dynamic (shooting) type: there are many ways to adjust it. 3.7.5 Plane cleaning device for plane cleaning. Its characteristics are large diameter two-dimensional rotating head, large amount of space, and low speed.
3.7.6 Waterway cleaning device The hose and nozzle assembly are retracted and retracted in the sewer pipe to remove debris. This is a self-advancing nozzle system for cleaning the water inlet of the pipeline <3). AKK
The national sewerage method is to use the backward jet of the piece to wash the water under the table. It should be able to match various types and sizes. The piece of jet direction combination pseudo nozzle: this table should be installed in a hard hat behind the spray control component to prevent the nozzle from turning over. 3. The safety room should be installed in an unfilled room. There are also several devices for recovery. The preset dead position will be opened when the system is under a low pressure. 3.9 The overpressure bottle is installed at the discharge end of the system. The water rate is automatically controlled to the high pressure water jet equipment. When the system pressure exceeds the preset constant, the two parts will be opened. The more the opening is, the more the flow will be. The water after flash rectification can be returned. The return system is in the water tank. The non-adjustable valve can control the return force, so it is necessary to check and ensure that it is set to the pre-set value each time it is used. 3.0 The operator can use the control valve to control the operation of various sprayers and nozzles. The valve must be protected and the flat surface must not be suddenly moved out or dumped when in use (National 4) e
Original high pressure home
Figure pedal control adjustment
85261997
3.11 Multi-link wide adjustment reading can send high-pressure water to one or more water jet components. The effect of the valve should be that multiple water jet components do not affect each other:
3.12 High flexibility, from a high-pressure water jet to a front component, the flexibility of the components to send water or its liquid. The minimum bursting pressure of the hose should be 2.5 times the working pressure. The manufacturer shall ensure that the high-pressure hose can be tested under 1.5 working pressure. The use pressure shall not exceed the recommended pressure. Hose failure may cause leakage, penetration and damage. 3.12.1 The hose assembly consists of a hose and corresponding end connectors. Each joint shall meet the manufacturer's specifications. 3.12.2 The flexible buckle shall be connected at the joint of the two ends of the hose with a standard steel or wire. If the flexible buckle is disconnected, the hose will stop working.3.13 Feeding device This is a mechanical device designed according to the requirements of the washing object. It must be new to realize feeding (vertical or horizontal), and the reverse feeding is also a more suitable feeding method for users. 3.4 Use the network supply system to prevent the problem of water jetting from entering the mouth and causing damage. The screen mesh that needs to be sealed. 3.15 The scale range of the pressure meter should be at least 30% higher than the maximum working pressure of the equipment. When the pressure is large, a pressure setting device should be set to accurately display the pressure reading. 3.16 The operator must be trained and have verified his skills and experience in the installation, operation and maintenance of water jetting equipment. 3. [The operation area is marked with harmful signs in the entire area involved in the water jetting operation. 4 Cleaning operation team
The cleaning operation requires at least 2 people, and the number of people per month depends on the size, difficulty and environment of the work. 4.1.1 Cleaning operation team
The operation team leader must ensure that before the operation: a) Coordinate The whole team must work well,
b) fully prepare the work area before the operation; c) have a safe and specific operation process. See Section 5; 1) disinfect the operation area and ensure that it is not occupied during the disinfection operation. 4.1.2 The spray operator, the spray head operator, and the spray gun operator must control the jet flow after the operation starts.
4.1.3 The pump operator must monitor the rise and fall of the pressure during the cleaning operation. At the same time, the spray gun operator must start the operation so that he can respond when the operator encounters a signal. The operator should also verify the current operation and surrounding conditions to prevent non-professionals from violating the regulations or causing other problems. If an unexpected situation occurs, the operator must immediately reduce the pressure. The operator should be warned when reducing the pump pressure to prevent the spray gun operator from losing balance due to the sudden impact of recoil.
4.1.4 Other cases The cleaning team may need other operations according to the working conditions. For example, when the spray boom is constantly moving forward, the operator should be equipped with an assistant. For example, when the pump is far away from the operator of the spray gun, it may be outside its range. At this time, a staff member may be needed to monitor the cleaning operation and communicate between the spray gun operator and the system operator. 4.1.5 Physical condition All spray operators must be fully prepared for the intended task. 4.1.6 Position jet recoil and energy flow working environment (such as recoil Continuation technique) is easy to make him operate the green epidemic labor, four ratios, the team members should implement the flash position change system.
4.1.7 Recoil
The recoil force of the wash brother can be calculated by the following formula: above-0.745QF
Where, --recoil,
Qflow, L/mir:
P——injection pressure, MPH.
JB8526··1997
4.1.T.1 The recoil force of the spray gun (head) operator should not exceed 1/3 of his body. 4.1.7.2 The design recoil force of the hand-held spray gun (head) shall not be greater than 25CN: 4.1.8 Signal technique and a safety protective equipment may affect the sound connection between the wind. The whole operation of the operation must have a clear signal, especially when starting the pump, reducing pressure, and stopping the pump. Before operation, each team member must understand the meaning of these signals. 4.2 Training
4.2.1 Only personnel who have undergone necessary training, mastered the relevant knowledge and skills, and have completed all similar designated tasks can operate the giant aquatic equipment. The training should at least include all the contents listed in this standard. 4.2.2 The cutting effect of high pressure jet equipment and its potential danger to human body can be demonstrated through audio-visual demonstration or actual use of effective equipment (cutting drama, cutting evidence, etc.). 4.2.3 Personal protection equipment should be selected according to the type of operation and the time and effort of personal protection equipment. It should be clearly stated in the product selection or operation plan. 2. The operation of the equipment should point out the problems in the operation of high pressure jet equipment and the corresponding stop actions. It must be emphasized that the operating force of the equipment should not exceed its rated working force. 4.2.5 The operating force of all control devices must be effectively explained. The control device must be adjusted in the same way as the control device. 4.2.6 Equipment maintenance: High pressure jet equipment must be checked and conditioned in a timely manner. The operating instructions must give the professional secrets followed by the equipment maintenance to prevent the use of equipment. When the pump is in operation, it is not allowed to repair the equipment or connect the system. The product and the pressure regulating device are not subject to strong damage during use. They must be checked regularly and maintained or replaced to ensure their good performance.
4.2. The high-pressure product must be connected and maintained, including the hose flat and without twisting, to protect the hose from damage due to air leakage, and to use appropriate tools for connection. Do not tighten or tamper with the hose. All shaft pipe joints are professionally identified.
1.3.% Must be determined to determine the correct posture and how to use the nozzle, etc., the equipment must be completed under close steam & a slow water barrier to rely on the specified worker to receive the training. .2." Equipment machine pressure reduction high pressure water jetting equipment must be shut down under the following conditions: a). When not in use:
h) not Approved and proper personnel shall enter the working area:) When any item of this specification is violated, equipment parts must be replaced or repaired, and operators must be retrained before using new equipment or parts. 4.3 Two protections: 1. All authorized work must comply with the relevant labor protection requirements and use necessary protective equipment: the quality of labor protection equipment must meet the relevant national standards for necessary protective equipment, and 4.3 .Labor protection products include headgear, goggles, earplugs, protective gear, hand accordion, shoes and related breathing masks, etc. Except for breathing masks worn by soldiers in environments with strong odor or strong odor, other products are basic labor protection products. Operators must check and ensure that they are worn during operation. Other personnel entering the site must wear related labor protection products, such as goggles, earplugs, protective clothing, etc. Appendix A of labor protection products (Appendix to the standard)
4.3.3 Labor protection products It is a labor protection product that cannot prevent the direct impact of high-speed jets or the jets from hitting the operator and other workers. 4.4 The above points may not cause the person injured by water jets to be fully injured. The internal damage and penetration rate of the wound may be small and there will be no bleeding. The large number of people who are injured by water jets may not be fully injured. Figure 5) Figure 5 Schematic diagram of the recovery process 4.4.2 Treatment of injuries If an accident occurs, the injured should be sent to the hospital immediately and the medical specialist should be informed so that the doctor can understand the cause of the accident. 4.4.3 If the doctor cannot stop the water jet immediately, the patient should be observed and a medical examination should be arranged within a few days. 4.4 Report any personal or equipment damage related to the water jet operation to the relevant organization or personnel. 5 Preparation before the operation! Make a plan Each operation should be planned in advance. The customer and the contractor should analyze the impact of the cleaning site on the operation and the possible environmental and safety issues of the operation. Therefore, a corresponding plan should be formulated. For example, see Appendix B (Appendix to the Standard).
5.1.1 For cleaning operations involving waste such as rust, the customer should ask for a detailed description of the operation so that the operator can make necessary special precautions and take good care of the waste materials to avoid environmental pollution. The operator should be informed that the cleaning operation may produce gas or mist: 5.1.2 Determine the operating personnel The customer and the operating team must make necessary analysis of the cleaning object and its scale layer before cleaning. Determine the necessary working pressure for the cleaning operation. When the flow conditions permit, the cleaning operation should be completed at the lowest possible pressure. 5.1.3 Working Space Restrictions When the fire protection operation must be subject to space restrictions, the owner and the operating team shall formulate a special operation plan with relevant safety protection measures. First, the general fire protection management should be studied and the operation site should be clearly defined. 5.2. If the work object can be moved at the work site, it should be transported to the designated site for operation. Otherwise, it can only be operated on site. In this way, the customer and the operation parties must work out specific work arrangements before the work can be started. For clearly defined work sites, guardrails must be installed at the boundaries to prevent unauthorized entry. Signs such as "If the belt is too close, stay away from the water jet system:" are hung on the guardrails. The setting of guardrails should not affect the operation of entering and exiting the work site. The boundary guardrails are divided into danger signs and protection types according to the distance from the operation site.
5.2. The above-mentioned protective guardrails should be set in places where the jet will not reach under any circumstances. They can be fences, net ropes, mesh belts, etc. (Figure e) Figure 5.2 shows the effective installation and warning functions of the guardrails. 8526-1997
Figure 6 Open guardrail
Width:
Water system
Figure? Warning sign book expansion fence
5.2.2 The guardrail must be installed at the site. If the guardrail is not installed outside the flow schedule, it must be installed around the operation area. The guardrail must be used to reduce the flying debris and limit the operation area. 5.3 The operation method should list the operation sequence and the required equipment in detail to ensure that the operation is carried out smoothly. 5. When working on electrical equipment, all outlets should be well equipped with protective shields. The operator must have a control valve that can close the non-convection flow control valve. The switch of the non-convection valve is either three-way or three-way. The operator can flexibly sign the brake when the brake is lowered. In addition, the control valve should have a self-locking mechanism to prevent the equipment from being damaged by external forces:
The network on the equipment must be inspected before operation. If there is any fault, it must be worn. 5. 5.6.1 The pipes and supports should be fixed and supported when the operator will walk through the pipes. To prevent the vibration from the ends and the friction, 5.6.2 All pipe parts should be prevented from being crushed by vehicles. It is strictly forbidden to use vehicles that exceed the specified working force. The pipes should be made of high quality materials. 5261997
Before operation, there should be soft joints and defects inspection + regular observation should be made during operation. 5.6.3 Joints and connections should be fully tested before assembly, and their performance should be guaranteed to be compatible. 5.6.4 Pipeline flushing should be done before installing the nozzle: the equipment should be flushed at normal pressure to prevent the pipeline from being filled with particles.
5. 5. Before installing the suction head, the following points must be noted: to prevent damage, wear or other defects. If there are defects, they must be paid attention to. The adjustment should be slow enough to ensure that the nozzle flows smoothly. The nozzle diameter should match the equipment and flow rate. 5.6.6 Air pressure system: There are steel wire shrinkage in the air pipe frame to prevent people from causing micro-movement during midday pressure. 5. Before operating, the operator should make sure that all the surfaces to be washed can be washed alive and stand stably. Ensure that the hose and other equipment do not hinder the movement of the operator. All objects that are not specified in the sequence should be kept away from the positioning. Especially those who may roll near the operating area, 5.8 Inform the user before entering the unit and inform them of the relevant on-site regulations. High-pressure water jetting will be carried out at the same time. 5.9 The joint protective hose and the spray grid must be re-installed with an outer protective hose. If the hose is cut and the head is broken, the protective hose may be injured quickly.
5.10 The dynamic equipment is usually in a stopped state. There is usually a new dynamic equipment part near the site. The machine is seriously broken or the decision is signed unless the operation is carried out.
(Operation Rules
6.1 Operation Rules
6.1.1 Wait until the pump head is operated properly to start the clear flow (Figure). Before the flow is raised, make sure that the operator is in a safe position and has controlled the workpiece.
Figure 8 Basic Bay Washing Diagram
6.1.2 Operation Procedure 1 Pressure Change Single As much as possible, the system operator must check the change pipe and each joint to see if there is any abnormal situation or other abnormal flow.
6.1. 3 Tightening and adjustment When the water jet equipment is in a state of tension, except for the adjustment of the width, other parts should be in a normal state. Do not tighten or adjust the parts during operation. When maintenance or adjustment is required, the equipment must be stopped to relieve pressure. 1.4 Before or during equipment operation, if the equipment fails to operate normally, such as unloading or safety, it must be stopped immediately for inspection and repair before the parts are repaired and replaced. The equipment must be restarted. 6.1. The power control pump should be adjusted slowly after the rise to make the change of the jet flow to the maximum value of 1 6
JB8526-197
If the pressure is positive, there should be no large adjustment. The pressure reduction of the equipment should also be slow to prevent the reverse force from suddenly disappearing and the nozzle operator from stepping on the tip: At the same time, the standing position of the nozzle operator should adapt to the normal change. 6.1.6 Nozzle The matching of the nozzle and the working pressure of the equipment should ensure that it meets the requirements of the initial working conditions. There is a certain distance between the nozzle and the nozzle. In order to reduce the negative impact force, it is necessary to install more than two nozzles on the nozzle to make the pressure condition balanced. Balance, inside this: before operation, the nozzle should be checked to prevent the nozzle from being damaged or abandoned: adopt this flat nozzle, the spray pressure should be slower than the original, the nozzle can be reversed, and the channel fence should also maintain a good quality drag to prevent the nozzle from being damaged by the slight increase in the number of sudden deviations.
5.1.7 Stop the operation when the following conditions occur: ) The personnel have not been fully selected:
b found cold or slight damage;
) The main factory alarm
) The situation that is inconsistent with the actual standard.
All unloading services and still pay attention to the safety of the capital, the spray push, the installation has potential! When the spray gun is turned off or the pressure is too high, the operator must ensure that there is no overpressure in the machine. The operator must not use the wrong hose on other parts of the equipment. They cannot be used to carry probes to perform various heavy tasks. This should be avoided when the operating space is limited. 3. During the pool cleaning operation, idle people are not allowed to enter the operation site: warning signs prohibiting entry to the operation site are placed at the bottom of the vehicle fence. Before the operation, a proper operation site preparation process should be formulated. When someone needs to enter or make a temporary stop, a medical number should be provided. In addition to the spray operation, the doctor should also allow the operator to perform the operation. In the operation, as long as there is no infection, the operator must not pay attention to 6. + pressure inspection. When checking the equipment for leakage and stagnation, open the pressure control. If a leakage or fault is found, it should be completely unloaded and repaired or replaced.
5 Quality control operation
.5.1 Control the price of the spraying operation, the operator shall actually control the price of the spraying operation (Figure 9). Figure 9 Spraying operationbZxz.net
65.2 In some cases, there must be someone on duty. 65.3 When multiple workers are working in the same place, the workers must have guardrails or sufficient space to prevent being harmed by the pressure water:
6.5.4 The regulations of the hospital prohibit workers from directly holding the washing objectsUsed to de-load and reduce the equipment to a low pressure state. The control valve that can close the non-convection valve must be controlled by the operator. The switch of the non-center valve is three-way or civil. The operator can brake and lower it flexibly. In addition, the control tree should have a self-locking mechanism to prevent the equipment from being damaged.
The network on the equipment must be inspected before operation. If there is any problem, it must be worn to increase the power of the equipment. 5. Notes on each device
5.6.1 The pipes and supports should be fixed in order to prevent the operator from crossing or walking on the water. The pipes should be supported and fixed to prevent the vibration from the end and the vibration from the end. 5.6.2 All parts of the pipes should be prevented from being pressed by vehicles. It is strictly forbidden to use vehicles that exceed the specified working force. The materials should be used for emergency operations.
JB85261997
Before operation, there should be soft joints and defects inspection. During operation, they should also be observed regularly. 5.6.3 Joints and connections should be fully tested before assembly, and their performance should be guaranteed to be compatible. 5.6.4 Pipeline flushing Before installing the nozzle, the machine should be run at normal pressure to prevent the pipeline from being filled with particles.
5.5. Before installing the suction head, the following points must be noted: prevent it from being damaged, worn out or other defects. If there are defects, they must be carefully checked. The nozzle should be changed slowly enough to ensure that the nozzle flows smoothly. The nozzle diameter should match the equipment and flow rate. 5.6.6 Air pressure system: There are steel wire shrinkage in the air pipe frame to prevent people from causing micro-movements during midday pressure. 5. Before operation, the operator should ensure that all surfaces to be washed can be washed. The operator should stand at the terminal and stand stably. Check the site for any injuries. Ensure that the hose and other equipment do not hinder the movement of the operator. All objects that are not specified in the sequence should be kept away from the surrounding area. Especially those who may move or roll close to the operation site should be informed of the relevant regulations of the industry site. 5.9 Before operation, the operator should make sure that all surfaces to be washed can be washed by convection. The operator should stand at the terminal and stand stably. Check the site for any injuries. Ensure that the hose and other equipment do not hinder the movement of the operator. All objects that are not specified in the sequence should be kept away from the surrounding area. 5.8 Before entering the site, notify the user of the order, especially those who may move or roll close to the operation site. At the same time, inform them of the relevant regulations of the industry site. The protective hose and the spray grid must be installed at the joint of the head - the outer layer of protective hose! The hose, the pipette cutter head rupture protective hose can quickly hurt the author
5.10 The state of the moving equipment is usually close to the site. The moving equipment is usually in a serious state or the machine is broken. Unless the operation is completed, the machine should be turned on.
(Operation rules
6.1 Operation rules
6.1.1 The convex head is not turned on. The tower gun head operation measures the pump operation force to start the clear flow setting angle (Figure). Before the diameter is raised, it is necessary to confirm that the flow and the workpiece are in a safe position and that the operator has controlled the head.
Figure 8 Basic Bay Washing Diagram
6.1.2 Operation Procedure 1 Pressure Change Single As much as possible, the system operator must check the change pipe and each joint to see if there is any abnormal situation or other abnormal flow. ||tt ||6.1.3 Tightening and adjustment When the water jet equipment is in a state of tension, except for the adjustment of the pressure, other parts should be in the normal state. Do not tighten or adjust the parts during operation. When maintenance or adjustment is required, the equipment must be stopped to relieve the pressure. 1.4 Before or during equipment operation, if the equipment fails to function properly, such as unloading or safety warning, it must be stopped immediately for inspection and repair before the parts are repaired and replaced. The equipment must be restarted. 6.1. The pressure control pump should be adjusted slowly after the pressure is increased to make the pressure suitable for the jet flow to change. If the pressure adjustment command is set, no large adjustment should be made. The equipment pressure reduction should also be slow to prevent the reverse force from suddenly disappearing and the nozzle operator from stepping forward. At the same time, the nozzle operator's standing position should be Adapt to the change of the standard. 6.1.6 Nozzle The matching of the nozzle and the working pressure of the equipment should ensure that it meets the requirements of the initial working conditions. There should be a certain distance between the nozzle and the nozzle. In order to reduce the impact force, more than two nozzles should be installed on the nozzle to balance the pressure. Before operation, the nozzle should be checked to prevent the nozzle from being damaged or abandoned. When using this flat nozzle, the spray pressure should be slower than that of the nozzle. The nozzle can be reversed. At the same time, the channel fence should also maintain a good quality drag to prevent the nozzle from being damaged and causing a sudden deviation.
5.1.7 Stop the operation when the following conditions occur: ) The personnel have not selected the crop:
b found cold or slight damage;
) The main factory alarm
) There is a situation that is inconsistent with the actual standard.
Tease all unloading services and still pay attention to emergency safety issues, its spray push, installed with momentum! When wide, the operator of the sprayer must ensure that there is no overpressure in the shutdown hall or reading gun.
Also. Z. The operator cannot use the hose that needs to be used on other parts of the equipment 4. They cannot be used to support the probe to perform various heavy disks. The operation space training is limited when this point should be prevented. 3. During the pool cleaning operation, idle people are not allowed to enter the operation site: the warning signs for prohibiting entry to the operation site are placed at the bottom of the day. The operation site should be formulated before the operation. When someone needs to enter or request to stand temporarily, they should be fully reminded that the sprayer should also allow the doctor to come. In the production, as long as it is not sexual, it is not allowed to pay attention to 6. + pressure inspection. When checking the equipment leakage and stagnation, the pressure should be opened. If the leakage end or the fault is found, the pressure should be completely unloaded and replaced.
5 Quality control operation
.5.1 Control the price of the spraying operation, the operator shall actually control the price of the spraying operation (Figure 9). Figure 9 Spraying operation
65.2 In some cases, there must be someone on duty. 65.3 When multiple workers are working in the same place, the workers must have guardrails or sufficient space to prevent being harmed by the pressure water:
6.5.4 The regulations of the hospital prohibit workers from directly holding the washing objectsUsed to de-load and reduce the equipment to a low pressure state. The control valve that can close the non-convection valve must be controlled by the operator. The switch of the non-center valve is three-way or civil. The operator can brake and lower it flexibly. In addition, the control tree should have a self-locking mechanism to prevent the equipment from being damaged.
The network on the equipment must be inspected before operation. If there is any problem, it must be worn to increase the power of the equipment. 5. Notes on each device
5.6.1 The pipes and supports should be fixed in order to prevent the operator from crossing or walking on the water. The pipes should be supported and fixed to prevent the vibration from the end and the vibration from the end. 5.6.2 All parts of the pipes should be prevented from being pressed by vehicles. It is strictly forbidden to use vehicles that exceed the specified working force. The materials should be used for emergency operations.
JB85261997
Before operation, there should be soft joints and defects inspection. During operation, they should also be observed regularly. 5.6.3 Joints and connections should be fully tested before assembly, and their performance should be guaranteed to be compatible. 5.6.4 Pipeline flushing Before installing the nozzle, the machine should be run at normal pressure to prevent the pipeline from being filled with particles.
5.5. Before installing the suction head, the following points must be noted: prevent it from being damaged, worn out or other defects. If there are defects, they must be carefully checked. The nozzle should be changed slowly enough to ensure that the nozzle flows smoothly. The nozzle diameter should match the equipment and flow rate. 5.6.6 Air pressure system: There are steel wire shrinkage in the air pipe frame to prevent people from causing micro-movements during midday pressure. 5. Before operation, the operator should ensure that all surfaces to be washed can be washed. The operator should stand at the terminal and stand stably. Check the site for any injuries. Ensure that the hose and other equipment do not hinder the movement of the operator. All objects that are not specified in the sequence should be kept away from the surrounding area. Especially those who may move or roll close to the operation site should be informed of the relevant regulations of the industry site. 5.9 Before operation, the operator should make sure that all surfaces to be washed can be washed by convection. The operator should stand at the terminal and stand stably. Check the site for any injuries. Ensure that the hose and other equipment do not hinder the movement of the operator. All objects that are not specified in the sequence should be kept away from the surrounding area. 5.8 Before entering the site, notify the user of the order, especially those who may move or roll close to the operation site. At the same time, inform them of the relevant regulations of the industry site. The protective hose and the spray grid must be installed at the joint of the head - the outer layer of protective hose! The hose, the pipette cutter head rupture protective hose can quickly hurt the author
5.10 The state of the moving equipment is usually close to the site. The moving equipment is usually in a serious state or the machine is broken. Unless the operation is completed, the machine should be turned on.
(Operation rules
6.1 Operation rules
6.1.1 The convex head is not turned on. The tower gun head operation measures the pump operation force to start the clear flow setting angle (Figure). Before the diameter is raised, it is necessary to confirm that the flow and the workpiece are in a safe position and that the operator has controlled the head.
Figure 8 Basic Bay Washing Diagram
6.1.2 Operation Procedure 1 Pressure Change Single As much as possible, the system operator must check the change pipe and each joint to see if there is any abnormal situation or other abnormal flow. ||tt ||6.1.3 Tightening and adjustment When the water jet equipment is in a state of tension, except for the adjustment of the pressure, other parts should be in the normal state. Do not tighten or adjust the parts during operation. When maintenance or adjustment is required, the equipment must be stopped to relieve the pressure. 1.4 Before or during equipment operation, if the equipment fails to function properly, such as unloading or safety warning, it must be stopped immediately for inspection and repair before the parts are repaired and replaced. The equipment must be restarted. 6.1. The pressure control pump should be adjusted slowly after the pressure is increased to make the pressure suitable for the jet flow to change. If the pressure adjustment command is set, no large adjustment should be made. The equipment pressure reduction should also be slow to prevent the reverse force from suddenly disappearing and the nozzle operator from stepping forward. At the same time, the nozzle operator's standing position should be Adapt to the change of the standard. 6.1.6 Nozzle The matching of the nozzle and the working pressure of the equipment should ensure that it meets the requirements of the initial working conditions. There should be a certain distance between the nozzle and the nozzle. In order to reduce the impact force, more than two nozzles should be installed on the nozzle to balance the pressure. Before operation, the nozzle should be checked to prevent the nozzle from being damaged or abandoned. When using this flat nozzle, the spray pressure should be slower than that of the nozzle. The nozzle can be reversed. At the same time, the channel fence should also maintain a good quality drag to prevent the nozzle from being damaged and causing a sudden deviation.
5.1.7 Stop the operation when the following conditions occur: ) The personnel have not selected the crop:
b found cold or slight damage;
) The main factory alarm
) There is a situation that is inconsistent with the actual standard.
Tease all unloading services and still pay attention to emergency safety issues, its spray push, installed with momentum! When wide, the operator of the sprayer must ensure that there is no overpressure in the shutdown hall or reading gun.
Also. Z. The operator cannot use the hose that needs to be used on other parts of the equipment 4. They cannot be used to support the probe to perform various heavy disks. The operation space training is limited when this point should be prevented. 3. During the pool cleaning operation, idle people are not allowed to enter the operation site: the warning signs for prohibiting entry to the operation site are placed at the bottom of the day. The operation site should be formulated before the operation. When someone needs to enter or request to stand temporarily, they should be fully reminded that the sprayer should also allow the doctor to come. In the production, as long as it is not sexual, it is not allowed to pay attention to 6. + pressure inspection. When checking the equipment leakage and stagnation, the pressure should be opened. If the leakage end or the fault is found, the pressure should be completely unloaded and replaced.
5 Quality control operation
.5.1 Control the price of the spraying operation, the operator shall actually control the price of the spraying operation (Figure 9). Figure 9 Spraying operation
65.2 In some cases, there must be someone on duty. 65.3 When multiple workers are working in the same place, the workers must have guardrails or sufficient space to prevent being harmed by the pressure water:
6.5.4 The regulations of the hospital prohibit workers from directly holding the washing objects3 Tightening and adjustment When the water jet equipment is in an operating state, except for the adjustment of the width, other parts should be in a normal state. It is necessary to tighten and adjust the fasteners and connecting parts during operation. When repairs or adjustments are required, the equipment must be stopped to relieve pressure. 1.4 Before or during equipment operation, if the equipment is unloaded or the safety valve is not working properly, it must be stopped for inspection and repair immediately. Before restarting, 6.1. The power control pump operation should be slowly adjusted after the rise to make the pressure suitable for the change of the jet reverse knife. The maximum pressure can reach 16
JB8526-197
. If there is a pressure adjustment instruction, no large adjustment should be made. The equipment pressure reduction should also be slow to prevent the reverse force from suddenly disappearing and the nozzle operator should step sharply: at the same time, the standing posture of the nozzle operator should adapt to the change of the normal pressure. 6.1.6 Nozzle The matching of the nozzle and the working pressure of the equipment should ensure that it meets the requirements of the initial working conditions. There should be a certain distance between the nozzle and the nozzle. In order to reduce the impact force, more than two nozzles should be installed on the nozzle to balance the pressure. Therefore, the nozzle should be checked separately before operation to prevent damage to the nozzle or station. When using this flat nozzle, the spray pressure should be slower than that of the nozzle to ensure the nozzle flow can be reversed. At the same time, the operator should also maintain a good quality of drag to prevent the nozzle from being slightly damaged and caused by a sudden deviation of the nozzle.
5.1.7 Stop the operation when the following conditions occur: 1. The personnel have not yet completed the operation: 2. Cold or slight damage is found; 3. The main factory alarm occurs; 4. The situation does not conform to the actual standards.
Tease all unloading services and still pay attention to emergency safety issues, its spray push, installed with momentum! When wide, the operator of the sprayer must ensure that there is no overpressure in the shutdown hall or reading gun.
Also. Z. The operator cannot use the hose that needs to be used on other parts of the equipment 4. They cannot be used to support the probe to perform various heavy disks. The operation space training is limited when this point should be prevented. 3. During the pool cleaning operation, idle people are not allowed to enter the operation site: the warning signs for prohibiting entry to the operation site are placed at the bottom of the day. The operation site should be formulated before the operation. When someone needs to enter or request to stand temporarily, they should be fully reminded that the sprayer should also allow the doctor to come. In the production, as long as it is not sexual, it is not allowed to pay attention to 6. + pressure inspection. When checking the equipment leakage and stagnation, the pressure should be opened. If the leakage end or the fault is found, the pressure should be completely unloaded and replaced.
5 Quality control operation
.5.1 Control the price of the spraying operation, the operator shall actually control the price of the spraying operation (Figure 9). Figure 9 Spraying operation
65.2 In some cases, there must be someone on duty. 65.3 When multiple workers are working in the same place, the workers must have guardrails or sufficient space to prevent being harmed by the pressure water:
6.5.4 The regulations of the hospital prohibit workers from directly holding the washing objects3 Tightening and adjustment When the water jet equipment is in an operating state, except for the adjustment of the width, other parts should be in a normal state. It is necessary to tighten and adjust the fasteners and connecting parts during operation. When repairs or adjustments are required, the equipment must be stopped to relieve pressure. 1.4 Before or during equipment operation, if the equipment is unloaded or the safety valve is not working properly, it must be stopped for inspection and repair immediately. Before restarting, 6.1. The power control pump operation should be slowly adjusted after the rise to make the pressure suitable for the change of the jet reverse knife. The maximum pressure can reach 16
JB8526-197
. If there is a pressure adjustment instruction, no large adjustment should be made. The equipment pressure reduction should also be slow to prevent the reverse force from suddenly disappearing and the nozzle operator should step sharply: at the same time, the standing posture of the nozzle operator should adapt to the change of the normal pressure. 6.1.6 Nozzle The matching of the nozzle and the working pressure of the equipment should ensure that it meets the requirements of the initial working conditions. There should be a certain distance between the nozzle and the nozzle. In order to reduce the impact force, more than two nozzles should be installed on the nozzle to balance the pressure. Therefore, the nozzle should be checked separately before operation to prevent damage to the nozzle or station. When using this flat nozzle, the spray pressure should be slower than that of the nozzle to ensure the nozzle flow can be reversed. At the same time, the operator should also maintain a good quality of drag to prevent the nozzle from being slightly damaged and caused by a sudden deviation of the nozzle.
5.1.7 Stop the operation when the following conditions occur: 1. The personnel have not yet completed the operation: 2. Cold or slight damage is found; 3. The main factory alarm occurs; 4. The situation does not conform to the actual standards.
Tease all unloading services and still pay attention to emergency safety issues, its spray push, installed with momentum! When wide, the operator of the sprayer must ensure that there is no overpressure in the shutdown hall or reading gun.
Also. Z. The operator cannot use the hose that needs to be used on other parts of the equipment 4. They cannot be used to support the probe to perform various heavy disks. The operation space training is limited when this point should be prevented. 3. During the pool cleaning operation, idle people are not allowed to enter the operation site: the warning signs for prohibiting entry to the operation site are placed at the bottom of the day. The operation site should be formulated before the operation. When someone needs to enter or request to stand temporarily, they should be fully reminded that the sprayer should also allow the doctor to come. In the production, as long as it is not sexual, it is not allowed to pay attention to 6. + pressure inspection. When checking the equipment leakage and stagnation, the pressure should be opened. If the leakage end or the fault is found, the pressure should be completely unloaded and replaced.
5 Quality control operation
.5.1 Control the price of the spraying operation, the operator shall actually control the price of the spraying operation (Figure 9). Figure 9 Spraying operation
65.2 In some cases, there must be someone on duty. 65.3 When multiple workers are working in the same place, the workers must have guardrails or sufficient space to prevent being harmed by the pressure water:
6.5.4 The regulations of the hospital prohibit workers from directly holding the washing objects
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