1 Scope
This standard specifies the basic technical requirements of liquid hydrogen production systems, as well as the requirements in hydrogen liquefaction device, liquid hydrogen storage, hydrogen discharge, automatic control and detection analysis, electrical facilities, lightning protection, anti-static and protective grounding, auxiliary facilities and safety protection.
This standard is applicable to the design of constructed, renovated, extended liquid hydrogen production system.
This standard is not applicable to liquid hydrogen production systems in military, national defense and aerospace fields.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 3836.4 Explosive atmospheres - Part 4: Equipment protection by intrinsic safety “i”
GB 3836.14 Explosive atmospheres - Part 14: Classification of areas - Explosive gas atmosphere
GB 4208 Degrees of protection provided by enclosure (IP code)
GB/T 4830 Industrial process measurement and control instruments - Pressure range and quality of air supply
GB 4962 Technical safety regulation for gaseous hydrogen use
GB/T 8175 Guide for design of thermal insulation of equipment and pipes
GB/T 8979 Pure nitrogen, high purity nitrogen and ultra-pure nitrogen
GB/T 24499 Technology glossary for gaseous hydrogen, hydrogen energy and hydrogen energy system
GB/T 24925 Low temperature valve - Technical specifications
GB/T 31480 Materials for high vacuum multilayer insulation of cryogenic vessel
GB/T 31481 Guidance for gas/materials compatibility of cryogenic vessels
GB/T 40045 Fuel specification for hydrogen powered vehicles - Liquid hydrogen (LH2)
GB/T 40060 Technical requirements for storage and transportation of liquid hydrogen
GB 50016 Code for fire protection design of buildings
GB/T 50050 Code for design of industrial recirculating cooling water treatment
GB 50052 Code for design electric power supply systems
GB 50057 Code for design protection of structures against lightning
GB 50058 Code for design of electrical installations in explosive atmospheres
GB 50140 Code for design of extinguisher distribution in buildings
GB 50177 Design code for hydrogen station
GB 50516 Technical code for hydrogen fuelling station
GB 50974 Code of design on fire protection water supply and hydrant systems
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 24499 and the following apply.
3.1
liquid hydrogen production system
general name of hydrogen source device, hydrogen liquefaction device, liquid hydrogen storage device, liquid hydrogen filling device, automatic control device, analysis and test device, auxiliary device for liquid hydrogen preparation, electrical facilities, pipeline accessories, etc.
3.2
hydrogen liquefaction device
process device for realizing liquefaction of gaseous hydrogen as raw material, including compressor, heat exchanger, ortho-para-hydrogen catalytic converter, vacuum pump, purifier, turbo expander and other unit equipment, as well as various pipelines, valves and instruments
3.3
cold box (liquefier)
low-temperature insulation equipment which condenses hydrogen into liquid hydrogen by continuously extracting heat from hydrogen in thermodynamic process
Note: It is composed of turbo expander, low-temperature purifier, heat exchanger, and ortho-para-hydrogen catalytic converter.
3.4
ortho-para-hydrogen catalytic converter
device for converting ortho-hydrogen into para-hydrogen by using a special catalyst
3.5
liquid hydrogen storage vessel
pressure vessel for storing liquid hydrogen
3.6
liquid hydrogen receiving tank
storage vessel for receiving liquid hydrogen products produced by hydrogen liquefaction device and having liquid hydrogen transfer function
Foreword II
Introduction III
1 Scope
2 Normative references
3 Terms and definitions
4 Basic technical requirements
5 Hydrogen liquefaction device
6 Liquid hydrogen storage
7 Hydrogen discharge
8 Automatic control and detection analysis
9 Electrical facilities
10 Lightning protection, anti-static and protective grounding
11 Auxiliary facilities
12 Safety protection
1 Scope
This standard specifies the basic technical requirements of liquid hydrogen production systems, as well as the requirements in hydrogen liquefaction device, liquid hydrogen storage, hydrogen discharge, automatic control and detection analysis, electrical facilities, lightning protection, anti-static and protective grounding, auxiliary facilities and safety protection.
This standard is applicable to the design of constructed, renovated, extended liquid hydrogen production system.
This standard is not applicable to liquid hydrogen production systems in military, national defense and aerospace fields.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 3836.4 Explosive atmospheres - Part 4: Equipment protection by intrinsic safety “i”
GB 3836.14 Explosive atmospheres - Part 14: Classification of areas - Explosive gas atmosphere
GB 4208 Degrees of protection provided by enclosure (IP code)
GB/T 4830 Industrial process measurement and control instruments - Pressure range and quality of air supply
GB 4962 Technical safety regulation for gaseous hydrogen use
GB/T 8175 Guide for design of thermal insulation of equipment and pipes
GB/T 8979 Pure nitrogen, high purity nitrogen and ultra-pure nitrogen
GB/T 24499 Technology glossary for gaseous hydrogen, hydrogen energy and hydrogen energy system
GB/T 24925 Low temperature valve - Technical specifications
GB/T 31480 Materials for high vacuum multilayer insulation of cryogenic vessel
GB/T 31481 Guidance for gas/materials compatibility of cryogenic vessels
GB/T 40045 Fuel specification for hydrogen powered vehicles - Liquid hydrogen (LH2)
GB/T 40060 Technical requirements for storage and transportation of liquid hydrogen
GB 50016 Code for fire protection design of buildings
GB/T 50050 Code for design of industrial recirculating cooling water treatment
GB 50052 Code for design electric power supply systems
GB 50057 Code for design protection of structures against lightning
GB 50058 Code for design of electrical installations in explosive atmospheres
GB 50140 Code for design of extinguisher distribution in buildings
GB 50177 Design code for hydrogen station
GB 50516 Technical code for hydrogen fuelling station
GB 50974 Code of design on fire protection water supply and hydrant systems
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 24499 and the following apply.
3.1
liquid hydrogen production system
general name of hydrogen source device, hydrogen liquefaction device, liquid hydrogen storage device, liquid hydrogen filling device, automatic control device, analysis and test device, auxiliary device for liquid hydrogen preparation, electrical facilities, pipeline accessories, etc.
3.2
hydrogen liquefaction device
process device for realizing liquefaction of gaseous hydrogen as raw material, including compressor, heat exchanger, ortho-para-hydrogen catalytic converter, vacuum pump, purifier, turbo expander and other unit equipment, as well as various pipelines, valves and instruments
3.3
cold box (liquefier)
low-temperature insulation equipment which condenses hydrogen into liquid hydrogen by continuously extracting heat from hydrogen in thermodynamic process
Note: It is composed of turbo expander, low-temperature purifier, heat exchanger, and ortho-para-hydrogen catalytic converter.
3.4
ortho-para-hydrogen catalytic converter
device for converting ortho-hydrogen into para-hydrogen by using a special catalyst
3.5
liquid hydrogen storage vessel
pressure vessel for storing liquid hydrogen
3.6
liquid hydrogen receiving tank
storage vessel for receiving liquid hydrogen products produced by hydrogen liquefaction device and having liquid hydrogen transfer function
Contents of GB/T 40061-2021
Foreword II
Introduction III
1 Scope
2 Normative references
3 Terms and definitions
4 Basic technical requirements
5 Hydrogen liquefaction device
6 Liquid hydrogen storage
7 Hydrogen discharge
8 Automatic control and detection analysis
9 Electrical facilities
10 Lightning protection, anti-static and protective grounding
11 Auxiliary facilities
12 Safety protection
