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GB/T 37563-2019: Safety Requirements for Pressurized Water Electrolysis System for Hydrogen Production Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 37563-2019: Safety Requirements for Pressurized Water Electrolysis System for Hydrogen Production---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT37563-2019 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 27.180 F 19 Safety Requirements for Pressurized Water Electrolysis System for Hydrogen Production Issued on. JUNE 4, 2019 Implemented on. OCTOBER 1, 2019 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 4 2 Normative References... 4 3 Terms and Definitions... 5 4 Hazardous and Harmful Factors of Hydrogen Production System... 6 5 Basic Requirements... 9 6 Environmental Conditions... 9 7 Equipment and Pipelines... 10 8 Electrical and Instrument Control... 13 9 Operation and Maintenance... 16 10 Operating Personnel... 19 11 Emergency Treatment... 19 Appendix A (informative) A Block Diagram of Typical Hydrogen Production System... 21 Appendix B (informative) Hazardous and Harmful Factors of Main Hazardous Chemicals and Unit Equipment of Hydrogen Production System... 22 Bibliography... 24ForewordThis Standard was drafted in accordance with the rules in GB/T 1.1-2009. This Standard was proposed by and shall be under the jurisdiction of National Standardization Technical Committee for Hydrogen Energy (SAC/TC 309). The main drafting organizations of this Standard. Tianjin Mainland Hydrogen Equipment Co., Ltd.; Shandong Saikesaisi Hydrogen Energy Co., Ltd.; China National Institute of Standardization; the 718th Research Institute of CSIC; Suzhou Jingli Hydrogen Plant; China Electronics Engineering Design Institute; Beijing University of Chemical Technology; Pudun (Beijing) Hydrogen Technol Co., Ltd.; CHySA Technology Company Limited. The main drafters of this Standard. Xu Wei, Zhao Yingchun, Ding Xiaotao, Yang Yanmei, Zhou Zhenfang, Zhang Bihang, Liao Guoqi, Zhou Junbo, Li Kean, Li Junrong, Xue Helai, Zhang Liyan, Wang Shourong, Ma Yibo. Safety Requirements for Pressurized Water Electrolysis System for Hydrogen Production1 ScopeThis Standard specifies the hazardous and harmful factors, and basic safety requirements of pressurized water electrolysis system for hydrogen production (hereinafter referred to as hydrogen production system), as well as the requirements for environmental conditions, system components, operation and maintenance, operating personnel and emergency treatment. This Standard is applicable to alkaline water electrolysis system and proton exchange membrane water electrolysis system with an operating pressure greater than or equal to 0.3 MPa, and less than or equal to 5.0 MPa. NOTE. in this Standard, pressure refers to gauge pressure.2 Normative ReferencesThe following documents are indispensable to the application of this document. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 150 (all parts) Pressure Vessels GB/T 151 Heat Exchanger GB 2894 Safety Signs and Guideline for the Use GB 3836.1 Explosive Atmospheres - Part 1.Equipment - General Requirements GB/T 4272 General Principles for Thermal Insulation Technique of Equipment and Pipes GB 7231 Basic Identification Colors and Code Indications and Safety Sign for Industrial Pipelines GB 12014 Protective Clothing - Static Protective Clothing GB 12358 Gas Monitors and Alarms for Workplace - General Technical Requirements GB 16808 Combustible Gas Alarm Control Units GB/T 19774 Specification of Water Electrolyte System for Producing Hydrogen GB 21146 Personal Protective Equipment - Occupational Footwear3 Terms and DefinitionsWhat is defined in GB/T 24499, and the following terms and definitions are applicable to this document. 3.1 Hazardous and Harmful Factors Hazardous and harmful factors refer to factors that may cause casualties, affect human health and even cause diseases. 3.3 Risk Assessment Risk assessment includes the whole process of risk identification, risk analysis and risk evaluation. 3.4 Oxygen-enriched Atmosphere Oxygen-enriched atmosphere refers to the environment where the volume fraction of oxygen in the air is greater than 23.5%.4 Hazardous and Harmful Factors of HydrogenProduction System 4.1 Hazardous and Harmful Factors of Composition and Unit Equipment of Hydrogen Production System The composition of the hydrogen production system is determined by factors, such as. the purpose and purity of the produced hydrogen / oxygen. A block diagram of typical hydrogen production system is shown in Appendix A. 4.2 Leakage Hydrogen would easily leak through porous materials, assembly surfaces or sealing surfaces. After hydrogen leaks, it will rapidly diffuse, leading to continuous expansion of the leakage-contaminated area, and the diffusion process is invisible to the naked eye. 4.3 Fire Disasters and Explosions The condition that causes hydrogen to catch fire or to explode is that the mixture of hydrogen and air or oxygen reaches the flammable or explosive limit, and there is an effective ignition source. 4.4 Suffocation Hydrogen is a simple suffocating gas. At its high concentration, the oxygen partial pressure in the air decreases and causes hypoxic suffocation. 4.5 Electric Shock In the hydrogen production system, equipment or facilities that might cause personal electric shocks include. water electrolyzers, rectifier transformers, rectifier cabinets, electrical cabinets, motors and power transmission copper bars, etc. During the operation and maintenance of the equipment, there is a danger of electric shock for the operating personnel. 4.6 Thermal Injury In the hydrogen generation system, the operating temperature range of the water electrolyzer and some of its auxiliary equipment is 60 °C ~ 90 °C. The operating temperature of the deoxygenation catalyst bed of the hydrogen purifier may reach 150 °C; the regeneration temperature of the drying bed (temperature-swing adsorption) of the hydrogen purifier may reach 350 °C; if human body directly contacts the surface of the equipment, it will lead to thermal injury. 4.7 Mechanical Injury Mechanical Injury of the hydrogen production system mainly refers to the injury caused by the direct contact of the moving parts of the mechanical equipment with the human body.5 Basic Requirements5.1 Avoid the accumulation of hydrogen / air (oxygen) mixture in a confined space; control the ignition source. 5.2 If possible, the number of people in hazardous environment shall be reduced, and the duration of their stay shall be shortened. 5.4 Corresponding operating procedures shall be formulated. 5.5 Occupational safety education and operating skills training shall be conducted for the operating personnel. 5.6 An emergency plan for accidents shall be developed.6 Environmental Conditions6.1 General Requirements 6.1.1 The design and installation of the hydrogen production system shall consider the influence of the environmental conditions (such as. ambient temperature, ambient humidity, altitude and seismic fortification intensity, etc.) of the user’s site on the safe operation of the equipment. 6.2 Installation Location of Hydrogen Production System 6.2.1 The fire hazard category of the hydrogen production system shall be “A”; the preparation of safety facilities on the installation site shall comply with the stipulations of GB 50177. 6.2.2 Forbidden areas shall be set up in the hydrogen production system and its surrounding areas; irrelevant persons are prohibited from entering. 6.2.5 The hydrogen production site should set up emergency lightings. 6.2.6 The hydrogen production site shall set up safety signs that comply with the stipulations of GB 2894.7 Equipment and Pipelines7.1 General Requirements 7.1.1 The design, manufacturing, installation and acceptance inspection of the oxygen recovery equipment, pipelines and accessories of the hydrogen production system shall comply with the stipulations of GB 50177 and GB/T 19774. 7.1.4 The arrangement of equipment and pipelines shall make it convenient for operation and maintenance; in case of an emergency, it shall be convenient for the evacuation of personnel. 7.1.5 The condensed water in the hydrogen equipment and pipelines shall be drained to the outdoors through the drainage water seal. 7.1.6 Preventive measures shall be taken for the stress and displacement caused by expansion and contraction of the equipment and pipelines. 7.1.7 The degreasing of equipment, pipelines and their valves and accessories in contact with oxygen shall comply with the stipulations of GB 50030 and HG 20202. 7.1.10 All rotating equipment shall be equipped with protective covers, or other protective measures shall be taken. 7.1.11 For equipment with a high noise, control measures, such as. sound insulation, noise elimination and vibration reduction, shall be adopted. 7.1.12 Equipment and valves shall be uniformly numbered; the safety signs for pipelines shall comply with the stipulations of GB 7231. 7.2 Single Equipment 7.2.1 Water electrolyzer The performance parameters and the structure of water electrolyzer shall be based on the basic requirements of reducing unit hydrogen power consumption, reducing manufacturing costs and extending service life. 7.2.2 Pressure vessel The pressure vessel of the hydrogen production system is mainly used for gas-liquid separation, cooling, heating and storage. The material, design, manufacturing, inspection and acceptance inspection of pressure vessels shall comply with the stipulations of TSG 21, GB/T 150 and GB/T 151. 7.2.3 Hydrogen purifier The hydrogen purifier shall take thermal insulation measures. The inlet of the hydrogen purifier should be equipped with a flow detection instrument. The operations (temperature control and valve switching, etc.) of the hydrogen purification process should adopt automatic control devices. 7.2.6 Pressure relief device Safety valve shall be a fully-enclosed type. It may only be used after being lead-sealed with qualification in calibration. The safety valve shall be vertically installed near the equipment being protected; the installation location shall make it convenient for inspection and maintenance. 7.2.7 Flame arrester The hydrogen vent pipeline shall be equipped with a flame arrester. The setting of the flame arrester shall comply with the relevant stipulations of GB 50177. 7.3 Pipelines and Accessories 7.3.1 The design and installation of pipelines and accessories of the hydrogen production system shall comply with the relevant stipulations of GB/T 19774. 7.3.5 After the installation of the hydrogen / oxygen pipelines, strength test, air- tightness test and leakage test shall be conducted. This type of tests shall be performed in accordance with GB 50177 and GB 50030. 7.3.6 The purging of the hydrogen / oxygen pipelines that are qualified in the leakage test shall comply with the relevant stipulations of GB 50177 and GB 50030.When using nitrogen for purging, measures shall be taken to prevent from suffocation.8 Electrical and Instrument Control8.1 General Requirements 8.1.1 The classification of the hazardous area of the hydrogen production system shall comply with the stipulations of GB 50177 and GB 50058. 8.2 DC Power Supply 8.2.1 Each water electrolyzer shall be separately equipped with a DC power supply; high-frequency switch rectifier, thyristor rectifier or diode rectifier should be adopted. 8.2.2 The DC power supply shall have the functions of voltage regulation and automatic current stabilization; it shall be equipped with an overcurrent protection device, which will automatically stop when it exceeds a predetermined value. 8.2.3 The high-voltage rectifier transformer equipped with the DC power supply shall be located in a separate transformer chamber. 8.2.4 An emergency power-off button of the DC power supply shall be installed in the electrolysis room. This button should be located in a place that is convenient for operation. 8.3 Electro-heating Elements 8.3.1 The technical requirements of metallic tube-type electro-heating elements shall comply with the stipulations of JB/T 2379. 8.4 Grounding 8.4.1 The metal shell, metal pipeline, metal base or frame of the hydrogen production system shall be grounded. The grounding shall comply with the stipulations of GB 50177 and GB 50057. 8.4.4 The grounding of electrical installations shall be connected to the grounding trunk through a separate grounding wire; no series connection is allowed. 8.4.5 All lightning protection and static protection grounding devices shall be regularly tested for the grounding resistance at least once a year. 8.5 Hydrogen Leakage Detection 8.5.1 The hydrogen production system shall be equipped with a fixed hydrogen detection alarm, and its technical performance shall comply with the stipulations of GB 12358 and GB 16808.The detector of the fixed hydrogen detection alarm shall be installed in a place where hydrogen is easy to leak and accumulate. 8.5.2 The hydrogen production system shall be equipped with a portable hydrogen detection alarm. 8.5.3 The fixed hydrogen detection alarm and the portable hydrogen detection alarm shall be regularly calibrated. 8.5.4 The hydrogen detection alarm shall normally work during equipment maintenance. 8.7 Automatic Control System 8.7.1 The automatic control system of the hydrogen production system shall conduct centralized monitoring and automatic adjustment of the main process parameters. When the equipment fails, it shall promptly give an alarm, shut down the machine, and properly handle it. 8.7.2 The measuring range and accuracy grade of the meter shall satisfy the requirements for use. The meters in contact with oxygen shall be grease-free. 8.7.5 Before new equipment is put into production, or, after overhauling, the automatic control system shall receive tests and simulation tests, and comply with the following requirements.9 Operation and Maintenance9.1 Preparation before First Actuation 9.1.1 It shall be confirmed that the various certificates and technical documents provided by the manufacturer are complete and correct. These materials shall at least include the following content. 9.1.2 The hydrogen production system shall be installed on site. 9.1.3 Before actuation, a comprehensive safety inspection shall be carried out; the identified problems shall be rectified one by one. 9.1.4 The on-site production environment shall comply with the design requirements; the various production auxiliary systems shall reach the conditions for actuation. 9.2 Equipment Operation 9.2.1 The preparation before daily actuation shall comply with the stipulations of 9.1.4 and 9.1.5.If the system is actuated from the pressure-holding state, then, no replacement is required. 9.2.2 Before actuation, it shall be ensured that there is no debris on the water electrolyzer, so as to prevent short circuit. 9.2.3 The hydrogen production system shall be actuated and unactuated strictly in accordance with the operating procedures. 9.3 Equipment Maintenance 9.3.1 The maintenance and overhauling operations of the hydrogen production system shall work out an operational scheme, which may be organized and implemented after receiving approval. 9.3.2 The maintenance and overhauling operations shall execute the lockout / tagout procedures. 9.3.7 When the safety facilities are being maintained, and there are no other alternative measures, the operation of the protected equipment shall be stopped. 9.3.8 The records of maintenance and overhauling operations shall be kept for at least 3 years. 9.3.9 Equipment removal work shall be carried out in weather without thunder or lightning. During the dismantling of the equipment, the hydrogen content in the air shall be continuously monitored; once it exceeds 0.4% (volume fraction), the dismantling work shall be immediately stopped. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 37563-2019 be delivered?Answer: The full copy PDF of English version of GB/T 37563-2019 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 37563-2019_English with my colleagues?Answer: Yes. 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