GB 50177-1993 Hydrogen and oxygen station design specification GB50177-93
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Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Code for design of oxyhydrogen station
50177-93
Code for design of oxyhydrogen station
1992—06—15
1993—12—01
State Bureau of Technical Supervision
Ministry of Construction of the People's Republic of China
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Jointly Issued
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National Standard of the People's Republic of China
Code for design of oxyhydrogen station
GB50177-93
Editor Department: People's Republic of China Ministry of Electronics Industry Approval department: Ministry of Construction of the People's Republic of China Effective date: December 1, 1993
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Engineering Construction Standard Full Text Information System
Notice on the release of the national standard "Design Specifications for Hydrogen and Oxygen Stations" Jianbiao [1993] No. 421
According to the requirements of the State Planning Commission's Jizong [1987] No. 2390 document and the Ministry of Construction's Jianbiao [1991] No. 727 document, the "Design Specifications for Hydrogen and Oxygen Stations" jointly compiled by the Ministry of Electronics Industry and relevant departments has been reviewed by relevant departments. The "Design Specifications for Hydrogen and Oxygen Stations" GB50177-93 is now approved as a mandatory national standard and will be implemented from December 1, 1993. The Ministry of Electronics Industry is responsible for the management of this standard, and its specific interpretation and other work are the responsibility of the Tenth Design Institute of the Ministry of Electronics Industry. The publication and distribution is organized by the Standard and Quota Research Institute of the Ministry of Construction.
Ministry of Construction of the People's Republic of China
June 15, 1993
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Preparation Instructions
This specification is compiled by the Ministry of Electronics Industry in accordance with the requirements of the State Planning Commission's Document No. 2390 [1987] and the Ministry of Construction's Document No. 727 [1991], and is specifically compiled by the Ministry of Electronics Industry's Tenth Design and Research Institute, together with Beijing Iron and Steel Design and Research Institute, Wuhan Iron and Steel Design and Research Institute, Beijing Nonferrous Metallurgical Design and Research Institute, Southwest Electric Power Design Institute, Qinhuangdao Glass Industry Design Institute and other units. During the compilation process, the compilation team conducted relatively extensive and in-depth investigations and research and necessary experiments, summarized domestic practical experience, consulted a large amount of domestic and foreign materials, and widely solicited domestic opinions. Finally, our ministry held a review meeting and jointly reviewed and finalized the draft with relevant departments.
This specification is divided into eleven chapters and six appendices, the main contents of which are: general provisions, station layout, process system, equipment selection, process layout, building structure, electrical and thermal control, lightning protection and grounding, water supply and drainage and fire protection, heating and ventilation, and pipelines. In the implementation of this specification, please pay attention to summarizing experience. If you find any need for modification and supplementation, please send your opinions and relevant materials to the "Hydrogen and Oxygen Station Design Specification" Management Group of the Tenth Design Institute of the Ministry of Electronics Industry (No. 27 Wanshou Road, Beijing, Postal Code 100840) for reference in future revisions. Ministry of Electronics Industry
May 1993
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Chapter 1 General
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Station Area Layout| |tt||Technology system
Equipment selection
Technology layout.
Building structure
Electrical and thermal control
Lightning protection and grounding
Water supply and drainage and fire protection
Heating and ventilation·
Chapter XI
Appendix 1
Appendix 2
Appendix 3
Appendix 4
Terms explanation
Plant area, hydrogen and oxygen station and Minimum clearance between overhead hydrogen pipelines in workshops and other overhead pipelines
Minimum clearance between overhead hydrogen pipelines in factory areas and buildings and structures
Minimum clearance between directly buried hydrogen pipelines in factory areas and buildings and structures
Appendix 5 Minimum clearance between directly buried hydrogen pipelines in factory areas and other buried pipelines
Appendix 6 Explanation of terms used in this specification
Additional explanation
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Chapter 1 General
Article 1.0.1 In order to correctly implement the national basic construction policies and guidelines, ensure safe production, save energy, protect the environment, meet production requirements, and achieve advanced technology and economic rationality in the design of hydrogen and oxygen stations and hydrogen supply stations, this specification is formulated. Article 1.0.2 This specification applies to the design of the following new, rebuilt and expanded hydrogen and oxygen stations:
1. Hydrogen and oxygen stations for hydrogen production by water electrolysis;
2. Hydrogen supply stations,
3. Hydrogen pipelines in factory areas and workshops.
Article 1.0.3 The production fire hazard category of hydrogen and oxygen stations and hydrogen supply stations should be "A".
There are explosion-hazardous rooms in hydrogen and oxygen stations and hydrogen supply stations. According to the current national standard "Design Specifications for Electrical Installations in Explosive and Fire Hazardous Environments", they should be designated as Zone 1 explosion-hazardous environments.
Article 1.0.4 The design of the oxygen part in the hydrogen and oxygen station should comply with the current national standard "Design Specifications for Oxygen Stations". In addition to implementing this specification, the design of hydrogen and oxygen stations, hydrogen supply stations and hydrogen pipelines should also comply with the provisions of the current relevant national standards and specifications. Engineering Construction Standard Full Text Information System
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Chapter 2 Station Area Layout
Article 2.0.1 The layout of hydrogen and oxygen stations, hydrogen supply stations, and hydrogen tanks shall be determined through comprehensive comparison according to the following requirements:
1. It should be arranged on the leeward side of the factory's minimum wind direction frequency throughout the year, and should be away from places with open flames or sparks;
2. It should be arranged as an independent building (structure); 3. It should not be arranged in crowded areas and major traffic arteries; 4. Hydrogen and oxygen stations, hydrogen supply stations, and hydrogen tank areas should be equipped with non-combustible walls, the height of which should not be less than 2m;
5. There should be room for expansion.
Article 2.0.2 The fire protection distance between hydrogen and oxygen stations, hydrogen supply stations, hydrogen tanks and buildings and structures shall not be less than the provisions of Table 2.0.2. Fire protection distance between hydrogen and oxygen stations, hydrogen supply stations, hydrogen tanks and buildings and structures (m)
Hydrogen and oxygen stations
Buildings and structures
Other buildings
Fire resistance level
Civil buildings
Important public buildings
35~500KV and each transformer is
Outdoor substations with a total voltage of 10000KVA or more
And the total voltage reduction with a total oil volume exceeding 5t
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Total volume of hydrogen tanks (m)
K10001001~1000010001~50000bzxz.net
Hydrogen supply station||t t||>50000
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Buildings and structures
Places with open flames or sparks
Overhead power lines
Hydrogen and oxygen stations
Continued Table 2.0.2
Total volume of hydrogen tanks (m2)
10001001~1000010001~50000
Hydrogen supply station
Height of pole
≥1.5 times the height of pole
>50000
Note: ①The fire protection distance should be calculated according to the closest distance to the outer wall of the adjacent building or structure, the outer edge of the protruding part, and the outer wall of the storage tank.
②For hydrogen tanks with fixed volume, the total volume is calculated by multiplying its water capacity (m3) and working pressure (absolute pressure 9.8x10*Pa).
③The fire separation distance between hydrogen tanks with a total volume not exceeding 20m3 and the factory buildings to which they belong is unlimited. ④The fire separation distance between high-rise factory buildings shall be increased by 3m accordingly according to this table. ③The fire separation distance between hydrogen tanks and oxygen tanks shall not be less than the diameter of the adjacent larger tank. Article 2.0.3 The fire separation distance between hydrogen and oxygen stations, hydrogen supply stations, hydrogen tanks and railways and roads shall not be less than that in Table 2.0.3. Fire separation distance between hydrogen and oxygen stations, hydrogen supply stations, hydrogen tanks and railways and roads (m)
Railways and roads
Railway lines outside the factory
(center line)
Railway lines inside the factory
(center line)
Non-electric traction locomotives
Electric traction locomotives
Non-electric traction locomotives
Electric traction locomotives
Roads outside the factory (roadside)
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Hydrogen and oxygen stations, hydrogen supply stations
Hydrogen tanks
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Railways and roads
Guangdong roads
(roadside)
Main roads
Secondary roads
Note: The fire separation distance should be calculated from the outer wall of the hydrogen tank. Hydrogen and oxygen stations, hydrogen supply stations
Continued Table 2.0.3
Hydrogen tanks
Article 2.0.4 The fire separation distance between hydrogen tanks or tank areas shall comply with the following provisions:
The fire separation distance between horizontal hydrogen tanks shall not be less than the radius of the adjacent larger tank;
2. The fire separation distance between horizontal hydrogen tanks shall not be less than 2/3 of the diameter of the adjacent larger tank; the fire separation distance between vertical and spherical tanks shall not be less than the diameter of the adjacent larger tank;
3. The fire separation distance between horizontal, vertical, spherical hydrogen tanks and wet hydrogen tanks shall be determined according to the larger one;
4. The total volume of a group of horizontal, vertical or spherical hydrogen tanks shall not exceed 30,000m. The fire separation distance between groups shall not be less than half the length of the adjacent larger tank for horizontal hydrogen tanks; and shall not be less than the diameter of the adjacent larger tank for vertical and spherical tanks, and shall not be less than 10m.
Article 2.0.5 When the hydrogen and oxygen station is arranged adjacent to other workshops in L-type, II-type and mountain-type, the following provisions shall be met:
1. The area of the station building shall not exceed 1000m2;
2. It should be arranged at the end of the factory building, and the fire resistance level of the building connected to it shall not be lower than Level 2;
3. The adjacent wall shall be a fire wall without doors, windows or holes; 4. It shall not be connected to workshops with open flames such as heat treatment, forging and welding. Engineering 4 Construction Standard Full Text Information System
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Article 2.0.6 When the number of hydrogen cylinders in the hydrogen supply station does not exceed 60 or the floor area does not exceed 500m2, it can be adjacent to the hydrogen workshop with a fire resistance level of not less than Level 2 or other Class D and E workshops with non-open flame operations. The adjacent wall shall be a fire wall without doors, windows or holes, and it should be arranged at the outer wall or end of the factory building. Article 2.0.7 When the actual storage capacity of hydrogen in the hydrogen and oxygen station exceeds 500 bottles, an independent hydrogen filling station shall be set up.
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Chapter 3 Process System
Article 3.0.1 The selection of the water electrolysis hydrogen production system shall be determined after technical and economic comparison based on the following factors:
1. The user's requirements for hydrogen pressure and purity; 2. The characteristics of the user's use of hydrogen;
3. The technical parameters of the water electrolysis hydrogen production device. Article 3.0.2 The water electrolysis hydrogen production device shall be equipped with a pressure regulating device, and the pressure difference between the hydrogen and oxygen at the outlet of the water electrolyzer should be less than 0.5kPa. Article 3.0.3 A vent pipe, a shut-off valve and a sampling and analysis valve must be installed between the hydrogen and oxygen outlets and the main pipe of each water electrolysis hydrogen production device. Article 3.0.4 The oxygen produced by the water electrolysis hydrogen production system can be recycled and utilized in different ways according to the specific conditions of the factory. If it is discharged directly into the atmosphere, measures should be taken to maintain the balance of oxygen and hydrogen pressure.
Article 3.0.5 An ion exchange device or a distilled water device should be installed in the hydrogen and oxygen station to produce raw water. When other workshops in the factory can supply raw water that meets the water quality requirements, it is advisable to use pipelines to deliver it to the hydrogen and oxygen station.
Article 3.0.6 The raw water system of the hydrogen and oxygen station should be equipped with raw water pumps, high-level water tanks, and balance water tanks according to the working pressure of the water electrolysis hydrogen production device to continuously or intermittently replenish water to the water electrolyzer. When a balance water tank is set, a gas balance pipe and a vent pipe should be set, and cut-off valves should be installed respectively; a check valve should also be installed on the water inlet pipe. Article 3.0.7 An alkali recovery and preparation system should be set in the hydrogen and oxygen station. An alkali filter should be installed on the alkali pipeline of the water electrolyzer. The alkali liquid injection and recovery of the water electrolyzer can share a pipeline. A shut-off valve should be installed between the alkali liquid circulation pipe and the alkali liquid main pipe of each water electrolyzer. Article 3.0.8 In the water electrolysis hydrogen production system, the condensed water in the hydrogen and oxygen equipment and their pipelines should be discharged to the outside through their respective drainage water seals. The gas vent pipes on the water seals should be connected to the outside separately.
Article 3.0.9 The hydrogen purification system should be determined according to the pressure, purity, impurity content of the raw hydrogen and product hydrogen, as well as the type of purification materials, activation and regeneration methods.
Article 3.0.10 The hydrogen compressor should be installed after the hydrogen tank. Several hydrogen compressors can be connected in parallel to inhale from the same hydrogen pipeline, but measures should be taken to ensure that the hydrogen on the inhalation side is at positive pressure.
A buffer tank or gas storage tank should be installed behind the medium and low pressure hydrogen compressor. A bypass should be installed between the air inlet pipe and the exhaust pipe of the medium and low pressure hydrogen compressor. Article 3.0.11 A vent pipe should be installed at the highest point of the hydrogen tank. Wet hydrogen tanks should be equipped with air inlet and air outlet water seals, and an excess vent pipe should be installed. Article 3.0.12 A sampling and analysis valve should be installed on the vent pipe used for replacement of the water electrolysis hydrogen production system.
Article 3.0.13 A shut-off valve, a reflux valve, a vent valve, a safety valve and a pressure gauge should be installed on the filler for hydrogen filling. The vent pipe of the safety valve should be connected to the outdoors. Article 3.0.14 When the user has requirements for the dust content of hydrogen, a gas filter of corresponding accuracy should be installed on the hydrogen delivery pipeline. Article 3.0.15 The hydrogen supply system of the hydrogen supply station should be determined according to the gas consumption, hydrogen purity and pressure of the hydrogen-using equipment. When the hydrogen consumption is uneven, a hydrogen tank should be installed. Article 3.0.16 A steam system with a pressure not exceeding 0.3MPa should be installed in the hydrogen and oxygen station.
Article 3.0.17 Hydrogen and oxygen stations and hydrogen supply stations should be equipped with nitrogen or carbon dioxide replacement and purge facilities with an oxygen content of less than 3%.
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W.bzsoso.cOmArticle 1 The selection of water electrolysis hydrogen production system should be determined after technical and economic comparison based on the following factors:
1. The user's requirements for hydrogen pressure and purity; 2. The characteristics of the user's use of hydrogen;
3. The technical parameters of the water electrolysis hydrogen production device. Article 3.0.2 The water electrolysis hydrogen production device should be equipped with a pressure regulating device, and the pressure difference between hydrogen and oxygen at the outlet of the water electrolyzer should be less than 0.5kPa. Article 3.0.3 A vent pipe, a shut-off valve and a sampling and analysis valve must be installed between the hydrogen and oxygen outlets and the main pipe of each water electrolysis hydrogen production device. Article 3.0.4 The oxygen produced by the water electrolysis hydrogen production system can be recycled and utilized in different ways according to the specific conditions of the factory. If it is discharged directly into the atmosphere, measures should be taken to maintain the balance of oxygen and hydrogen pressure.
Article 3.0.5 An ion exchange device or a distilled water device should be installed in the hydrogen and oxygen station to produce raw water. When other workshops in the factory can supply raw water that meets the water quality requirements, it is advisable to use pipelines to deliver it to the hydrogen and oxygen station.
Article 3.0.6 The raw water system of the hydrogen and oxygen station should be equipped with raw water pumps, high-level water tanks, and balance water tanks according to the working pressure of the water electrolysis hydrogen production device to continuously or intermittently replenish water to the water electrolyzer. When a balance water tank is set up, a gas balance pipe and a vent pipe should be set up, and a shut-off valve should be installed respectively; a check valve should also be installed on the water inlet pipe. Article 3.0.7 An alkali recovery and preparation system should be set up in the hydrogen and oxygen station. An alkali filter should be installed on the alkali pipeline of the water electrolyzer. The alkali injection and recovery of the water electrolyzer can share a pipeline. A shut-off valve should be installed between the alkali circulation pipe of each water electrolyzer and the alkali main pipe. Article 3.0.8 In the water electrolysis hydrogen production system, the condensed water in the hydrogen and oxygen equipment and their pipelines shall be discharged to the outside through their respective drainage water seals. The gas vent pipes on the water seals shall be connected to the outside respectively.
Article 3.0.9 The hydrogen purification system shall be determined according to the pressure, purity, impurity content of the raw hydrogen and product hydrogen, as well as the type, activation and regeneration methods of the purification materials.
Article 3.0.10 The hydrogen compressor shall be installed after the hydrogen tank. Several hydrogen compressors can be connected in parallel to inhale from the same hydrogen pipeline, but measures should be taken to ensure that the hydrogen on the suction side is at positive pressure.
A buffer tank or gas storage tank should be installed after the medium and low pressure hydrogen compressors. A bypass should be installed between the intake pipe and the exhaust pipe of the medium and low pressure hydrogen compressors. Article 3.0.11 A vent pipe shall be installed at the highest point of the hydrogen tank. Wet hydrogen tanks should be equipped with air inlet and air outlet water seals, and an excess vent pipe should be installed. Article 3.0.12 A sampling and analysis valve shall be installed on the vent pipe used for replacement of the water electrolysis hydrogen production system.
Article 3.0.13 The filler for hydrogen filling bottles shall be equipped with a shut-off valve, a reflux valve, a vent valve, a safety valve and a pressure gauge. The vent pipe of the safety valve shall be connected to the outdoors. Article 3.0.14 When the user has requirements for the dust content of hydrogen, a gas filter of corresponding accuracy shall be installed on the hydrogen delivery pipeline. Article 3.0.15 The hydrogen supply system of the hydrogen supply station shall be determined according to the gas consumption, hydrogen purity and pressure of the hydrogen-using equipment. When the hydrogen consumption is uneven, a hydrogen tank should be installed. Article 3.0.16 A steam system with a pressure not exceeding 0.3MPa should be installed in the hydrogen-oxygen station.
Article 3.0.17 Hydrogen and oxygen stations and hydrogen supply stations shall be equipped with nitrogen or carbon dioxide replacement and purge facilities with an oxygen content of less than 3%.
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W.bzsoso.cOmArticle 1 The selection of water electrolysis hydrogen production system should be determined after technical and economic comparison based on the following factors:
1. The user's requirements for hydrogen pressure and purity; 2. The characteristics of the user's use of hydrogen;
3. The technical parameters of the water electrolysis hydrogen production device. Article 3.0.2 The water electrolysis hydrogen production device should be equipped with a pressure regulating device, and the pressure difference between hydrogen and oxygen at the outlet of the water electrolyzer should be less than 0.5kPa. Article 3.0.3 A vent pipe, a shut-off valve and a sampling and analysis valve must be installed between the hydrogen and oxygen outlets and the main pipe of each water electrolysis hydrogen production device. Article 3.0.4 The oxygen produced by the water electrolysis hydrogen production system can be recycled and utilized in different ways according to the specific conditions of the factory. If it is discharged directly into the atmosphere, measures should be taken to maintain the balance of oxygen and hydrogen pressure.
Article 3.0.5 An ion exchange device or a distilled water device should be installed in the hydrogen and oxygen station to produce raw water. When other workshops in the factory can supply raw water that meets the water quality requirements, it is advisable to use pipelines to deliver it to the hydrogen and oxygen station.
Article 3.0.6 The raw water system of the hydrogen and oxygen station should be equipped with raw water pumps, high-level water tanks, and balance water tanks according to the working pressure of the water electrolysis hydrogen production device to continuously or intermittently replenish water to the water electrolyzer. When a balance water tank is set up, a gas balance pipe and a vent pipe should be set up, and a shut-off valve should be installed respectively; a check valve should also be installed on the water inlet pipe. Article 3.0.7 An alkali recovery and preparation system should be set up in the hydrogen and oxygen station. An alkali filter should be installed on the alkali pipeline of the water electrolyzer. The alkali injection and recovery of the water electrolyzer can share a pipeline. A shut-off valve should be installed between the alkali circulation pipe of each water electrolyzer and the alkali main pipe. Article 3.0.8 In the water electrolysis hydrogen production system, the condensed water in the hydrogen and oxygen equipment and their pipelines shall be discharged to the outside through their respective drainage water seals. The gas vent pipes on the water seals shall be connected to the outside respectively.
Article 3.0.9 The hydrogen purification system shall be determined according to the pressure, purity, impurity content of the raw hydrogen and product hydrogen, as well as the type, activation and regeneration methods of the purification materials.
Article 3.0.10 The hydrogen compressor shall be installed after the hydrogen tank. Several hydrogen compressors can be connected in parallel to inhale from the same hydrogen pipeline, but measures should be taken to ensure that the hydrogen on the suction side is at positive pressure.
A buffer tank or gas storage tank should be installed after the medium and low pressure hydrogen compressors. A bypass should be installed between the intake pipe and the exhaust pipe of the medium and low pressure hydrogen compressors. Article 3.0.11 A vent pipe shall be installed at the highest point of the hydrogen tank. Wet hydrogen tanks should be equipped with air inlet and air outlet water seals, and an excess vent pipe should be installed. Article 3.0.12 A sampling and analysis valve shall be installed on the vent pipe used for replacement of the water electrolysis hydrogen production system.
Article 3.0.13 The filler for hydrogen filling bottles shall be equipped with a shut-off valve, a reflux valve, a vent valve, a safety valve and a pressure gauge. The vent pipe of the safety valve shall be connected to the outdoors. Article 3.0.14 When the user has requirements for the dust content of hydrogen, a gas filter of corresponding accuracy shall be installed on the hydrogen delivery pipeline. Article 3.0.15 The hydrogen supply system of the hydrogen supply station shall be determined according to the gas consumption, hydrogen purity and pressure of the hydrogen-using equipment. When the hydrogen consumption is uneven, a hydrogen tank should be installed. Article 3.0.16 A steam system with a pressure not exceeding 0.3MPa should be installed in the hydrogen-oxygen station.
Article 3.0.17 Hydrogen and oxygen stations and hydrogen supply stations shall be equipped with nitrogen or carbon dioxide replacement and purge facilities with an oxygen content of less than 3%.
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