JB/T 6921-1993 Roots vacuum pump unit

JB/T 6921-1993 Roots vacuum pump unit JB/T6921-1993 Standard download and decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T6921-93
Roots Vacuum Pump Unit
Released on 1993-07-13|| tt||Ministry of Machinery Industry of the People's Republic of China
Issued
Implemented on 1994-07-01
Machinery Industry Standard of the People's Republic of China
Roots Vacuum Pump Unit||tt| |Subject content and scope of application
JB/T 692193
This standard specifies the type, basic parameters, technical requirements, test methods, and inspection of Roots vacuum system units with pumping speeds of 30 to 5000L/s. Rules, marking, packaging, transportation, and storage. This standard applies to a system with a Roots vacuum pump as the main pump or a main pump and an intermediate pump, and a slide valve vacuum pump, a rotary vane vacuum pump, and a liquid (water, oil) ring vacuum pump as the front stage. A two-stage or three-stage Roots vacuum pump unit (hereinafter referred to as the unit). 2 Reference standards
GB/T13306 labelbzxZ.net
GB/T 13384
ZBJ78013
General technical conditions for mechanical and electrical product packaging
Roots vacuum pump||tt| |3 Type and basic parameters
3.1 Model representation method
The unit model consists of a basic model and an auxiliary model, and its representation method is as follows: a basic model
3.1.1 Proportion and distribution Ratio code
Auxiliary model
Modification code (ABC)
Ratio code
Main system geometric pumping speed, L/s
Pre-stage ticket Code
Main pump code (ZJ)
Unit code (J)
The ratio refers to the main pump and front pump system or the main pump and intermediate pump, and the intermediate pump and front pump in the unit. The ratio of the pumping speed of the stage pump. The proportions are represented by four proportioning codes 1, 2, 4, and 8 individually or in combination of two proportioning codes. The proportion values ??represented by the proportion codes are shown in Table 1. Table 1
Proportion code
Proportion value
The front-stage ticket code is shown in Table 2,
Foreline pump code||tt ||Preamp system name
Slide valve vacuum tea
Approved by the Ministry of Machinery Industry on 1993-07-13| |tt||2
Table 2
Spread vacuum pump
s|| tt||Water ring vacuum cracking
Oil ring vacuum pump
Implemented on 1994-07-01||tt| |3.1.3 Example of model marking
JB/T 692193
The secondary unit of the main pump is a 600L/s Roots vacuum pump and the front stage is a 70L/s sliding vacuum pump. Its model number Marked as: JZJH600-8
A three-stage unit with a Roots vacuum system with a main pump of 600L/s, a Roots vacuum pump with an intermediate pump of 150L/s, and a rotary vane vacuum pump with a front stage of 70L/s. The model mark is:
JZJX600-42
Unit series and basic parameters
The recommended unit series is shown in Table 3 and Table 4, and its basic parameters should comply with The provisions of Table 5, Table 6, Table 7 and Table 8. Table 3 The recommended series of front-stage tickets for the secondary Luohuo vacuum pump unit
ZJ-150
ZJ-300
ZJ-600
ZJ-1200
Main pump
ZJ-150
Ask the pump||tt| |ZJ-30
ZJ-300
ZJ-600ZJ-150
ZJ-1200ZJ-300
ZJ-2500ZJ-600
ZJ-5000ZJ-1200
H(X)-8
2H(X)-8
JZJH(X)30-4
JZJHX >70-8
2S(Y>K-0.8
H(X)-15
2H(X)-15
JZJS(Y)30-2
JZJH(X>70-4
JZJH(X>150-8
2S(Y>K-1.5
H(X)-30||tt ||2H(X)-30
JZJS(Y)30-1
JZJS(Y)70-2
JZJH(X)150-4
JZJH (X>300-8
2S(Y)K-3
H(X)-70
2H(X)-70
JZJS(Y)70 -1
JZJS(Y)150-2
JZJS(X)300-4
2S(Y)K-6
H(X)-150| |tt||2H(X)-150
JZJS(Y)150-1
JZJS(Y)300-2
JZJH(X>600-8||tt| |JZJH(X)600-4
JZJH(X)1200-8
Table 4 Three-stage Roots vacuum system unit recommended fruit series 2S(Y)K-0. 8||tt ||H(X)-8
2H(X)-8
JZJH(X)150-44
H(X)-15
2H(X )-15
JZJ150-42*
JZJH(X)300-44
2S(Y)K-1. 5
H(X)-30| |tt||2H(X)-30
JZJS(Y)150-41
JZJ300-42 *
JZJH(X)600-44
2S( Y)K-3
H(X)-70
2H(X)-70
JZJS(Y)300-41
JZJ600-42*|| tt||2S(Y)K-6
H(X)-150
2H(X)-150
JZJS(Y)600-41
JZJH (X)1200-44JZJ1200-42*
2S(Y)K-12
JZJS(Y)300-)
JZJS(Y) 600-2
JZJH1200-4
2S(Y)K-12
ZJS(Y)1200-41
JZJH( X)2500-44JZJ2500-42
JZJH5000-44
Note: There is ". The front-stage ticket code in the box in the unit model marked "is determined according to the actual pump configuration. Table 5 Roots pump slide valve (disc) pump secondary unit cat gas
type| |tt||No.
Ultimate pressure Pa
Shaft gas efficiency
H(X> type foreline pump 2H(2X) type foreline slurry
JZJH(X)30
JZJH(X)70
JZJH(X)150
70|| tt||150
1×10*1
5×102
5×10||tt| |5×10
gon||tt| |rate
H type backing pump 2H type backing pump X type backing pump 2X type backing pump
type||tt ||No.
JZJH(X)300
JZJH(X)600
JZJH(X)1200
Pump out||tt| |Rate
Ultimate pressure Pa
JB/T6921-93
Continued Table 5
Shaft gas efficiency
H(X ) type backing pump 2H (2X) type backing pump
1×16-|| tt||1×10-1
1×10-1
5×10-
5×10-
5×10-
Note, the pumping rate in the table refers to the geometric pumping rate of the main pump, Table 6
JZJS(Y)30
1|| tt||ea
JZJS(Y)70-
JZJS(Y)150-
JZJS(Y)300
JZJS(Y)600||tt| |1
Pumping rate
150| |tt||300
70||tt ||Power
H-type backing pump
2H-type backing pump tt||22.50
Roots water ring (oil ring) two-stage unit
Ultimate pressure meeting
Two-stage water ring pump
4×102
4×102
4×10°
4×10*
4 ×10t
Note: The pumping continuous rate in the table refers to the geometric pumping rate of the main pump. Table 7
JZJH(X)150
JZJH(X )300-
JZJH(X)600-
JZJH(X)1200
42|| tt||44
Pumping
1200| |tt||Pa
Two-stage oil ring pump
8×10||tt ||8×10
Roots pump sliding (rotary vane) three-stage unit
Ultimate pressure
H (X) type stage pump| |tt||5×16-1
5×10-
5×10-
5×10-1
2H (2X) type pre-amplifier
3×10~+
3×10~1
3×10-
Pumping efficiency
H type backing pump
3. 70|| tt||8.10
Pumping efficiency
Gong|| tt |
37.50||tt| |skw
2H ink backing pump |tt||13.70
13.70||tt ||11.90
2X type pre-stage ticket
JZJH(X)2500-|| tt||42
JZJH(X)5000-
speed step||tt ||Ultimate pressure Pa
JB/T6921-93
Continued Table 7
Pumping efficiency
L/sH(X) type front Stage pump 2H (2X) plastic front stage pump 2500
5×10-
5x10-1
3×10-
3× 10-1
Note: The pumping rate in the table refers to the pumping rate of the main pump. 80
H-type foreline pump ≥H-type foreline pump Department 56.00
Roots pump water ring (oil ring) three-stage unit
Table 8
Model
JZJS(Y)150-
JZJS(Y)300-
JZJS(Y)600-
JZJS(Y)1200
JZJS(Y>2500
41||tt| |42
Pumping rate
600|| tt||1200
Ultimate medical power ≤Pa
Double-level water ring ticket
4×10'
4×10||tt ||4×10
Note, the air pumping rate in the table refers to the geometric air pumping rate of the main pulp, 4 technical requirements||tt ||4.1
Double-stage ring pump
8×10-1
8×10-1
8×16--
8x10-1| |tt||8×10--
Pumping efficiency
80||tt ||80
The unit should comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 37.00
The various vacuum pumps that make up the unit must be Products manufactured according to corresponding product standards and passed inspection by the manufacturer. 4.2
When designing the unit, it should be ensured that it can be easily replaced if one of the pumps is damaged. The allowed working environment temperature of 4.3
4.4 unit is 5～40℃. 4.5 The plate limit pressure value of the main pump of the unit within 0.5 hours after it is started should meet the requirements specified in Table 5 and Table 6, 4.6
The air extraction efficiency of the unit should meet the requirements specified in Table 5 and Table 6. The unit should run smoothly, the frame should be firm and reliable, and there should be no obvious vibration during operation. The unit operates continuously for 1b under the ultimate pressure without any malfunction during this period. The unit should have protection devices to prevent Roots system overload and devices to prevent the backing pump working fluid from flowing back or spraying back. The supply pipelines for the coolant required by various pumps in the unit and the working fluid of the water ring pump should have liquid cutoff alarm devices. The electrical control system of the unit should have an interlocking automatic protection function and work reliably and safely. Work
9.10||tt ||24.70
The pipeline components of the unit before assembly Cleaning should be carried out, and the vacuum pipeline should be subjected to a gas pressure test with a pressure of 0.25 to 0.40MPa, and the pressure should be maintained for 15 minutes, during which there should be no air leakage. 4.13
The surface of the unit should be painted smooth, and the exposed tight fittings and operating parts should be rust-proofed. 4.14 Under the condition that the user abides by the transportation, storage, installation, use and maintenance rules of the unit, within one year from the date of shipment from the manufacturer (the service period shall not exceed six months), if the unit cannot work normally due to poor manufacturing, it will be The factory shall repair or replace parts and components for the user free of charge. 4
5 Test methods and inspection rules
JB/T6921-93
5.1 Each unit must pass the inspection and be accompanied by a product certificate before leaving the factory. 5.2 The inspection of the unit is divided into factory inspection and type inspection. The inspection items of 5.3 factory inspection
are Articles 4.5, 4.7, 4.8, 4.9, 4.10, 4.11 and 4.13. Article 4.5 shall be tested according to the provisions of ZBJ78013. The remaining items are inspected visually. 5.4 Type inspection
In addition to the factory inspection items in Article 5.3, the inspection items should also be checked in Article 4.6. The inspection method shall be in accordance with the provisions of ZBJ78013. 5.5 When one of the following circumstances occurs, type inspection shall be carried out; a.| |tt||b.
New product trial forming and identification:
After formal production, when the structure , when there are major changes in materials and processes that may affect product performance; when normal production occurs and a certain batch is formed, 1 to 2 units are inspected every year: when production is resumed after a long-term suspension of production; when the national quality supervision agency proposes type inspection, Marking, packaging, transportation, storage
Marking
Each unit should have a product label fixed at a visible location, and the label should comply with the regulations of GB/T13306. It should be marked on it: a.
Product model and name;
Name of the heritage factory:
Technical parameters: ultimate pressure.Pa; pumping Rate, L/s: Total power, kW; c.
d. Product factory number and manufacturing date.
6.2 Packaging
6.2.1 The unit should be packed in wooden boxes when leaving the factory. 6.2.2 Before the machine is assembled into a box, the air inlet and outlet must be tightly sealed, and the accompanying parts and spare parts must be properly placed and fixed in the box. Technical documents should be packed in waterproof and moisture-proof plastic bags to avoid loss and damage during transportation. Damage, 6.2.3 The packaging of the unit should comply with the regulations of GB/T13384. The outer surface of the packaging box should have the following clear signs and words: a.
Unit name, model, factory number, manufacturer name and address: Receipt Unit name and address;
Packing size, weight, number of boxes in total, words such as "handle with care", "no inversion allowed" and lifting position marks. The logos and words on the packaging boxes should be ensured not to be blurred due to flooding or long periods of time. The following documents should be included when the unit is packaged and shipped from the factory: 6.2.4
a. Product certificate;
b. Packing list:
c. Product instruction manual and various invoices and main documents Accessory kit instruction manual. 6.3 Transportation
During the transportation of products, measures should be taken to prevent leaching and violent collisions. 6.4 Storage
The product should be stored in a dry and well-ventilated room. Unboxed products are not allowed to be stored in the open to avoid rust and damage. Additional notes:
JB/T6921--93
This standard is proposed by the National Technical Committee for Standardization of Vacuum Technology. This standard is under the jurisdiction of Shenyang Vacuum Technology Research Institute of the Ministry of Machinery Industry. This standard is drafted by Zhejiang Vacuum Equipment Factory. The main drafters of this standard are Cao Yu and Jiang Dongfa.13 items. Among them, item 4.5 shall be tested according to the provisions of ZBJ78013, and the remaining items shall be inspected by visual inspection. 5.4 Type inspection
In addition to the factory inspection items in Article 5.3, the inspection items should also be inspected in Article 4.6. The inspection method shall be in accordance with the provisions of ZBJ78013. 5.5 When one of the following circumstances occurs, type inspection shall be carried out; a.| |tt||b.
New product trial forming and identification:
After formal production, when the structure , when there are major changes in materials and processes that may affect product performance; when normal production occurs and a certain batch is formed, 1 to 2 units are inspected every year: when production is resumed after a long-term suspension of production; when the national quality supervision agency proposes type inspection, Marking, packaging, transportation, storage
Marking
Each unit should have a product label fixed at a visible location, and the label should comply with the regulations of GB/T13306. It should be marked on it: a.
Product model and name;
Name of the heritage factory:
Technical parameters: ultimate pressure.Pa; pumping Rate, L/s: Total power, kW; c.
d. Product factory number and manufacturing date.
6.2 Packaging
6.2.1 The unit should be packed in wooden boxes when leaving the factory. 6.2.2 Before the machine is assembled into a box, the air inlet and outlet must be tightly sealed, and the accompanying parts and spare parts must be properly placed and fixed in the box. Technical documents should be packed in waterproof and moisture-proof plastic bags to avoid loss and damage during transportation. Damage, 6.2.3 The packaging of the unit should comply with the regulations of GB/T13384. The outer surface of the packaging box should have the following clear signs and words: a.
Unit name, model, factory number, manufacturer name and address: Receipt Unit name and address;
Packing size, weight, number of boxes in total, words such as "handle with care", "no inversion allowed" and lifting position marks. The logos and words on the packaging boxes should be ensured not to be blurred due to flooding or long periods of time. The following documents should be included when the unit is packaged and shipped from the factory: 6.2.4
a. Product certificate;
b. Packing list:
c. Product instruction manual and various invoices and main documents Accessory kit instruction manual. 6.3 Transportation
During the transportation of products, measures should be taken to prevent leaching and violent collisions. 6.4 Storage
The product should be stored in a dry and well-ventilated room. Unboxed products are not allowed to be stored in the open to avoid rust and damage. Additional notes:
JB/T6921--93
This standard is proposed by the National Technical Committee for Standardization of Vacuum Technology. This standard is under the jurisdiction of Shenyang Vacuum Technology Research Institute of the Ministry of Machinery Industry. This standard is drafted by Zhejiang Vacuum Equipment Factory. The main drafters of this standard are Cao Yu and Jiang Dongfa.13 items. Among them, item 4.5 shall be tested according to the provisions of ZBJ78013, and the remaining items shall be inspected by visual inspection. 5.4 Type inspection
In addition to the factory inspection items in Article 5.3, the inspection items should also be inspected in Article 4.6. The inspection method shall be in accordance with the provisions of ZBJ78013. 5.5 When one of the following circumstances occurs, type inspection shall be carried out; a.| |tt||b.
New product trial forming and identification:
After formal production, when the structure , when there are major changes in materials and processes that may affect product performance; when normal production occurs and a certain batch is formed, 1 to 2 units are inspected every year: when production is resumed after a long-term suspension of production; when the national quality supervision agency proposes type inspection, Marking, packaging, transportation, storage
Marking
Each unit should have a product label fixed at a visible location, and the label should comply with the regulations of GB/T13306. It should be marked on it: a.
Product model and name;
Name of the heritage factory:
Technical parameters: ultimate pressure.Pa; pumping Rate, L/s: Total power, kW; c.
d. Product factory number and manufacturing date.
6.2 Packaging
6.2.1 The unit should be packed in wooden boxes when leaving the factory. 6.2.2 Before the machine is assembled into a box, the air inlet and outlet must be tightly sealed, and the accompanying parts and spare parts must be properly placed and fixed in the box. Technical documents should be packed in waterproof and moisture-proof plastic bags to avoid loss and damage during transportation. Damage, 6.2.3 The packaging of the unit should comply with the regulations of GB/T13384. The outer surface of the packaging box should have the following clear signs and words: a.
Unit name, model, factory number, manufacturer name and address: Receipt Unit name and address;
Packing size, weight, number of boxes in total, words such as "handle with care", "no inversion allowed" and lifting position marks. The logos and words on the packaging boxes should be ensured not to be blurred due to flooding or long periods of time. The following documents should be included when the unit is packaged and shipped from the factory: 6.2.4
a. Product certificate;
b. Packing list:
c. Product instruction manual and various invoices and major Accessory kit instruction manual. 6.3 Transportation
During the transportation of products, measures should be taken to prevent leaching and violent collisions. 6.4 Storage
The product should be stored in a dry and well-ventilated room. Unboxed products are not allowed to be stored in the open to avoid rust and damage. Additional notes:
JB/T6921--93
This standard is proposed by the National Technical Committee for Standardization of Vacuum Technology. This standard is under the jurisdiction of Shenyang Vacuum Technology Research Institute of the Ministry of Machinery Industry. This standard is drafted by Zhejiang Vacuum Equipment Factory. The main drafters of this standard are Cao Yu and Jiang Dongfa.
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