GB 50195-1994 Design specification for generator gas station

This specification is applicable to the design of atmospheric fixed bed generator gas stations and gas pipelines for new construction, expansion and reconstruction of industrial enterprises. Existing equipment, pipelines, buildings and structures should be reasonably and fully utilized for expansion and reconstruction projects. This specification is not applicable to the design of water gas stations and water gas pipelines. GB 50195-1994 Design Specification for Generator Gas Stations GB50195-1994 Standard Download Decompression Password: www.bzxz.net

Engineering construction standard full text information system
National Standard of the People's Republic of China
50195-94
Design code for producer gas station
Design code for producer gas station
1994—01—14
1994—09—01
State Bureau of Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering construction standard full text information system
Jointly issued
Engineering construction standard full text information system
National Standard of the People's Republic of China
Design code for producer gas station
Design code for producer gas station stationGB50195-94
Editor: Ministry of Machinery Industry of the People's Republic of ChinaApproval department: Ministry of Construction of the People's Republic of ChinaEffective date: September 1, 1994
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Notice on the release of the national standard "Design Specifications for Generator Gas Stations"
Construction Standard [1994] No. 35
According to the requirements of the State Planning Commission's document No. Jizong (1987) 2390 and the Ministry of Construction's document No. Jianbiao [1991] 727, the national standard "Design Specifications for Generator Gas Stations" jointly formulated by the Ministry of Machinery Industry and relevant departments has been reviewed by relevant departments. The "Design Specifications for Generator Gas Stations" GB
is now approved for implementation on September 1, 1994.
50195-194 is a mandatory national standard. Since 1999, this specification has been managed by the Ministry of Machinery Industry. Its specific interpretation work is the responsibility of the Design Institute of the Ministry of Machinery Industry, and its publication and distribution is organized by the Standard and Quota Institute of the Ministry of Construction. Ministry of Construction of the People's Republic of China
January 14, 1994
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Coal Type Selection
Design Output and Quality
Station Area Layout
Equipment Selection·
Safety Requirements for Equipment
Process Layout·
Air Pipeline
Auxiliary Facilities
Storage and Transportation of Coal and Ash
Water Supply, Drainage and Circulating Water
Thermal Measurement and Control
Heating, Ventilation and Dust Removal
Buildings and Structures
Gas Pipeline
：(12)
：(16)
·(24)
：（28)
···(32)
Appendix A
Minimum horizontal clearance between overhead gas pipelines in the plant and buildings, structures and pipelines
Appendix B
Appendix D
.·*(36)
Minimum crossing clearance between overhead gas pipelines in the plant and railways, roads, overhead power lines and other pipelines·
Minimum horizontal clearance between overhead gas pipelines in the plant and other pipelines laid parallel on the same support
·（38)
... (39)
Minimum horizontal, vertical and cross clearances between overhead cold gas pipelines in workshops and other pipelines
Appendix E
Explanation of terms used in this specification
Additional explanation…
Appendix: Explanation of clauses
Explanation of clauses
Explanation of clauses
Explanation of clauses
Explanation of clauses
1 General
1 This specification is formulated to ensure that the design of generator gas stations can ensure safe production, save energy, protect the environment, and be technologically advanced and economically reasonable. 2 This specification is applicable to the design of atmospheric fixed-bed generator gas stations and gas pipelines newly built, expanded and rebuilt by industrial enterprises. For expansion and reconstruction projects, the existing equipment, pipelines, buildings and structures should be reasonably and fully utilized. This specification is not applicable to the design of water-gas stations and water-gas pipelines. 3 The environmental protection facilities of the producer gas station must be designed at the same time as the main project. The emission of various harmful substances and the harm of noise must be strictly controlled and shall comply with the provisions of the relevant national standards in force.
4 In addition to complying with this specification, the design of the producer gas station and gas pipeline shall also comply with the provisions of the relevant national standards and specifications in force. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
2 Terminology
2.0.1 Producer Gas Station producergasstation The general term for the main plant, gas exhaust machine room, air blower room, coal and ash storage and transportation, circulating water system and auxiliary facilities set up for the production of gas.
overhead bridgefor coal conveyer coal conveyor bridge
Belt corridor for transporting coal, coke or ash. 2.0.3 Crasher and sieving room A room with coal or coke crushing equipment or screening equipment. 2.0.4 Coal receiving hopper A coal storage hopper in the coal yard or in front of the mechanized coal transport equipment. 2.0.5 Pulverized coal
Coal with a particle size of 0-13mm.
2.o.6 Mechanized transport transport by conveyor belt conveyor, multi-bucket elevator, scraper and hydraulic ash removal.
2.0.7 Semi-mechanized transport transport by simple machine monorail electric hoist, single bucket elevator, electric traction trolley, rail-mounted hand-pushed mine car and simple coal transport machinery.
2.0.8 Magnetic separation facilities Magnetic separator Magnetic separation equipment, suspended magnetic separator, electromagnetic belt wheel are installed on the coal transport system.
Small gas stationsmalltypestation
A gas station with a designed gas output of less than or equal to 6000m3/h under standard conditions.
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
2.0.10Medium gas station
mediumtypegasstation
A gas station with a designed gas output between 6000m3/h small gas station and 50000m3/h large gas station under standard conditions. 2.0.11Large gas stationlargetypegasstationA gas station with a designed gas output of greater than or equal to 50000m3/h under standard conditions.
Common passagecommonpassage
A place where indoor operation and inspection are frequently passed. 2.0.13Main passage
Mainpassage
Indoor trunk road used for equipment installation and maintenance transportation. 2.0.14 Rotary rake
A device for loosening the coal layer in the gasifier. 2.0.15 Equipment for gas purification equipment for gas purification A general term for vertical pipes, cyclone dust collectors, electrical filters, scrubbers, indirect coolers, drip removers, etc.
2.0.16 Electrical filter
Electrostatic precipitator
A general term for wet electrical precipitators, electrical tar removers, and electrostatic precipitators. 2.0.17 Water knockout
Equipment for removing water droplets from gas.
2.0.18 Bell type valve
A device for releasing gas or smoke from the outlet of a gasifier. 2.0.19 Non-return valve
A device for preventing gas in a gasifier from flowing back into the air pipe. 2.0.20 Explosion valve
When the gas explodes, the diaphragm inside the valve ruptures and releases the pressure. The valve cover automatically closes due to the action of the heavy hammer, which can play a safety role.
2.0.21 Draft ventilation equipment Draft ventilation equipment is a device that provides natural ventilation for the gas generator when the fire is suppressed. 2.0.22 Drainer water sealing equipment Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Equipment for draining condensed water in gas pipelines. Flexible section of gas pipe 2.0.23
Device for compensating thermal expansion on gas pipelines. 2.0.24 Blanking plate
Blocking plate used for temporary partition between flanges of gas equipment or pipelines. 2.0.25 Side shoring
Established before and after the flanges of gas equipment or pipelines, used to support the loading and unloading of blind plates and blind plate gaskets.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Selection of Coal Type
The coal type for gasification should be selected and determined before the preliminary design of the gasifier gas station (hereinafter referred to as the gas station). Before the design of the construction drawings, a coal supply agreement should be obtained; the content of the coal supply agreement should include the coal type, quantity, particle size and technical indicators. Note: The coal types referred to in this specification include coke. The coal type for gasification should be selected and determined after technical and economic comparison based on the user's requirements for gas quality and the principle of local and nearby supply. The technical indicators of coal for gasification in a first-stage gasifier should comply with the relevant provisions of the current national standard "Quality Standard for Coal for Atmospheric Fixed Bed Gasifier". 3.0.3
Regulations.
Technical indicators of coal for gasification in two-stage gasifier should comply with the technical indicators of coal for gasification in two-stage gasifier in Table 3.0.4
Ratio of maximum particle size to minimum particle size
Lower limit of lump coal (%)
Containing grinding ratio (%)
Dry basis volatile matter V. (%)
Dry basis ash content Aa (%)
Dry basis total sulfur content S. （%)
Ash fusibility Softening temperature ST（℃）
Thermal stability TS+6（%）
Crushing strength (>25mm）)（%）
Roga index RI
Free expansion index FSI
Engineering construction standard full text information system
Technical index
20~40,25~5030~60
Engineering construction standard full text information system
3.0.5 The main gasification index of coal shall be determined comprehensively according to the type of gasifier, coal type, particle size and other factors. For coal types that have been used for gasification, their average gasification strength index shall be adopted; for coal types that have not been used for gasification, their gasification index shall be determined according to their gasification test report and the gasification index of similar coal types that have been used for gasification in gasifiers. 3.0. 6
Before the preliminary design, the gasification test report of the coal type to be used should be obtained. When it is difficult to obtain the above report for the design of a small gas station, the technical indicators of the coal type should be obtained. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Design Output and Quality
4.0.1 The design output of the gas station should be determined based on the sum of the hourly maximum gas consumption of the workshops of each gas user and the simultaneous use coefficient between workshops. The hourly maximum gas consumption of the workshop of the gas user should be determined based on the sum of the hourly maximum gas consumption of each gas-using equipment and the simultaneous use coefficient between each equipment. 4.0.2 The simultaneous use coefficient between the workshops of the gas user and the simultaneous use coefficient between each equipment should be determined after calculation based on the corresponding actual working conditions of the same type of enterprises.
Under standard conditions, the low calorific value of the gas of the first-stage generator should meet the following specifications 1 Anthracite system or coke system is not less than 5000kJ/m 4.0.3.1
4.0.3.2 The bituminous coal system shall not be less than 5650 kJ/m3. Note: Under an atmospheric pressure of 101325 Pa (760 mm mercury column), the temperature is 0°C as the standard state. 4.0.4 Under standard conditions, the low calorific value of the two-stage generator gas should meet the following requirements:bzxZ.net
1 The upper stage gas shall not be less than 6700 kJ/m3.
2 The lower stage gas shall not be greater than 5440 kJ/m3.
4.0.5 The gas temperature of the cold gas station shall not be higher than 35°C after the scrubber or indirect cooler; it should not be higher than 45°C in summer.
4.0.6 The gas temperature of the hot gas station gasified with bituminous coal shall not be lower than 350°C before the equipment using the gas.
When it is difficult for a small hot gas station to reach this temperature, it can be appropriately lowered. 4.0.7 The dust and tar content in the outlet gas of the cold gas station shall be determined according to the user's requirements. When the user has no requirements, the sum of the dust and tar content in the gas under standard conditions shall comply with the following provisions:
Engineering Construction Standard Full Text Information System6 The gas temperature of the hot gas station using bituminous coal gasification should not be lower than 350℃ before the equipment using the gas.
When it is difficult for a small hot gas station to reach this temperature, it can be appropriately lowered. 4.0.7 The dust and tar content in the outlet gas of the cold gas station should be determined according to the user's requirements. When the user has no requirements, the sum of the dust and tar content in the gas under standard conditions should meet the following requirements:
Engineering Construction Standard Full Text Information System6 The gas temperature of the hot gas station using bituminous coal gasification should not be lower than 350℃ before the equipment using the gas.
When it is difficult for a small hot gas station to reach this temperature, it can be appropriately lowered. 4.0.7 The dust and tar content in the outlet gas of the cold gas station should be determined according to the user's requirements. When the user has no requirements, the sum of the dust and tar content in the gas under standard conditions should meet the following requirements:
Engineering Construction Standard Full Text Information System
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.