GB/T 37562-2019 PDF English
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GB/T 37562-2019: Technical conditions of 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/GBT37562-2019
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.180
F 19
Technical conditions of pressurized water electrolysis
system for hydrogen production
Issued on. JUNE 04, 2019
Implemented on. JANUARY 01, 2020
Issued by. State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 6
4 Classification and designation... 7
4.1 Pressurized alkaline water electrolysis system for hydrogen production... 7
4.2 Pressurized PEM water electrolysis system for hydrogen production... 8
5 Technical requirements... 8
5.1 Pressurized water electrolysis system for hydrogen production... 8
5.2 Single equipment... 10
5.3 Pipelines and accessories... 15
5.4 Electrical equipment and wiring... 16
5.5 Automatic control and monitoring... 17
5.6 Assembly and installation... 19
6 Test and detection... 20
6.1 Test conditions... 20
6.2 Test... 21
6.3 Detection... 23
7 Marking... 25
8 Product accompanying documents... 26
8.1 Handling and hoisting instructions... 26
8.2 System and equipment drawings... 26
8.3 Instruction manual... 26
8.4 Installation and maintenance manual... 28
9 Packaging... 29
Appendix A (Informative) Block diagram of typical pressurized water electrolysis
system for hydrogen production... 31
Appendix B (Informative) Test of gas production by volumetric method... 33
Appendix C (Informative) Calculation of gas production by current test value35
Appendix D (Informative) Test of gas purity by analytical instruments... 36
1 Scope
This Standard specifies the terms and definitions, classification and designation,
technical requirements, test and detection, marking, and packaging of
pressurized alkaline water electrolysis system for hydrogen production and
proton exchange membrane (PEM) water electrolysis system for hydrogen
production.
This Standard applies to pressurized alkaline water electrolysis and pressurized
PEM water electrolysis systems for hydrogen production, whose working
pressure is greater than or equal to 0.3 MPa and less than or equal to 5.0 MPa.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
GB/T 150 (all parts) Pressure vessels
GB/T 151 Heat exchanger
GB/T 629 Chemical reagent - Sodium hydroxide
GB/T 1972 Disc spring
GB/T 2306 Chemical reagent - Potassium hydroxide
GB/T 2829 Sampling procedures and tables for periodic inspection by
attributes (apply to inspection of process stability)
GB/T 3634.2 Hydrogen - Part 2.Pore hydrogen, high pure hydrogen and
ultrapure hydrogen
GB 3836.1 Explosive atmospheres - Part 1.Equipment - General
requirements
GB 3836.14 Electrical apparatus for explosive gas atmospheres - Part 14.
Classification of hazardous areas
GB/T 3863 Industrial oxygen
GB 4793.1 Safety requirements for electrical equipment for measurement,
control, and laboratory use - Part 1.General requirements
3 Terms and definitions
The terms and definitions defined in GB/T 19774 and GB/T 24499 and the
following ones apply to this document.
3.1
Pressure
The force acting vertically on a unit surface area of a vessel. In this Standard,
unless otherwise noted, pressure refers to gauge pressure.
3.2
Pressurized water electrolysis system for hydrogen production
A water electrolysis system for hydrogen production composed of a water
electrolyzer with a specified pressure and its auxiliary equipment, pipelines and
accessories, and enclosure, etc.
3.3
Alkaline water electrolysis system for hydrogen production
A water electrolysis system for hydrogen production composed of alkaline water
electrolyzer and its auxiliary equipment, pipelines and accessories, and
enclosure, etc.
3.4
Proton exchange membrane water electrolysis system for hydrogen
production
A water electrolysis system for hydrogen production composed of a PEM water
electrolyzer and its auxiliary equipment, pipelines and accessories, and
enclosure, etc.
3.5
Enclosure
An equipment locker that separates, protects and supports the electrical system
and the process system in the hydrogen production system.
3.6
Purge
Use nitrogen or oil-free dry air to blow off the dust, particles and flammable
liquid generated in the system during equipment processing.
4 Classification and designation
4.1 Pressurized alkaline water electrolysis system for hydrogen production
The product designation of the pressurized alkaline water electrolysis system
for hydrogen production shall be composed of uppercase Chinese pinyin letters
and Arabic numerals.
The development method shall meet the following requirements.
4.2 Pressurized PEM water electrolysis system for hydrogen production
The product designation of the pressurized PEM water electrolysis system for
hydrogen production shall be composed of uppercase Chinese pinyin letters
and Arabic numerals.
5 Technical requirements
5.1 Pressurized water electrolysis system for hydrogen production
5.1.1 General requirements
Refer to Appendix A for the block diagrams of typical alkaline water electrolysis
system for hydrogen production and PEM water electrolysis system for
hydrogen production.
5.1.2 Working conditions
5.1.2.1 The working environment of the hydrogen production system shall be
clean and well ventilated. The working environment temperature should be
5 °C~45 °C.
5.2 Single equipment
5.2.1 General requirements
5.2.1.1 The single equipment of the water electrolysis system for hydrogen
production shall be determined according to the type, scale, and functional
requirements, etc.
5.2.2 Water electrolyzer
5.2.2.1 The water electrolyzer is the main equipment of the water electrolysis
system for hydrogen production. Its performance parameters will determine the
technical performance of the water electrolysis hydrogen production.
The performance parameters and structural design of the water electrolyzer
shall be based on the basic requirements of reducing the power consumption
per unit of hydrogen, reducing the manufacturing cost, and extending the
service life. The structural form of the water electrolyzer, the structure, coating
and material of the electrolysis cell and diaphragm shall be selected reasonably.
5.2.4 Enclosure
5.2.4.1 The electrical compartment in the enclosure shall always maintain a
positive pressure of not less than 5 Pa relative to the atmosphere. And
according to the positive pressure inside the enclosure and the volume of the
enclosure, the exhaust volume shall be determined.
5.2.4.2 The electrical compartment and the hydrogen production compartment
shall be separated by a partition without pores or holes. When perforation is
necessary, a hole shall be opened at the bottom of the enclosure.
5.2.4.3 The enclosure shall be determined according to the scale and functional
requirements. And it shall meet the following requirements.
5.2.5 Hydrogen tank
5.2.5.1 According to the characteristics of hydrogen use and users'
requirements for hydrogen, the hydrogen production system shall be equipped
with corresponding hydrogen tanks.
5.2.5.2 The storage capacity of the hydrogen tank shall be determined
according to parameters such as hydrogen production, characteristics of
hydrogen used, and hydrogen pressure.
5.2.6 Oxygen tank
5.5 Automatic control and monitoring
5.5.1 General requirements
The hardware and software used in the automatic control and monitoring of the
water electrolysis system for hydrogen production shall be able to operate
normally under the design conditions. And it can promptly alarm and stop when
the hydrogen production system fails; and carry out corresponding emergency
treatment.
5.5.2 Automatic control and monitoring devices
5.5.2.1 Temperature sensor
The alkaline water electrolysis system for hydrogen production shall be
equipped with temperature sensors in the following locations. The temperature
detection point of the electrolyzer shall be set on the hydrogen and oxygen
outlet pipelines of the electrolyzer. The lye temperature detection point shall be
set on the lye outlet pipeline of the lye cooler.
The PEM water electrolysis system for hydrogen production shall be equipped
with temperature sensors in the following locations. The temperature detection
point of the electrolyzer shall be set on the hydrogen and oxygen outlet
pipelines of the electrolyzer. The pure water temperature detection point shall
be set on the pipeline of the pure water outlet.
6 Test and detection
6.1 Test conditions
6.1.1 General requirements
6.1.2 Test preparation
When testing, the entire hydrogen production system shall be assembled
according to the manufacturer's instructions. It shall be ensured that the working
conditions of the system equipment in the test and detection are the same as
the real working conditions.
6.1.3 Test working conditions
Unless otherwise specified, during test and detection, the entire hydrogen
production system shall be in design conditions.
6.1.4 Test conditions
The test and detection shall be carried out in the following environment.
6.2 Test
6.2.1 Electrical test
6.2.1.1 Loop impedance test
The impedance measurement test of the fault loop shall be verified in
accordance with the loop impedance test of GB/T 16895.23.
6.2.1.2 Voltage test
6.3 Detection
6.3.1 Preparation before detection
6.3.1.1 The hydrogen pipeline of the water electrolysis system for hydrogen
production shall be purged and replaced. After the purging and replacement,
the oxygen content in the system shall be less than 0.5%.
6.3.2 Performance parameter detection
6.3.2.1 The detection of hydrogen production shall meet the following
requirements.
7 Marking
7.1 The marking making and installation location of the water electrolysis
system for hydrogen production and its single equipment shall comply with
GB/T 13306.
7.2 The content of the marking shall be concise and clear, showing the main
performance parameters, indexes and requirements. The marking shall be fixed
in a conspicuous location that is easy to observe.
7.3 Each water electrolysis system for hydrogen production shall have a
signboard. The main single equipment shall, according to the needs, be
provided with signboards respectively. The signboard of the water electrolysis
system for hydrogen production shall include the following contents.
8 Product accompanying documents
8.1 Handling and hoisting instructions
8.1.1 The manufacturer shall provide instructions for the safe handling and
hoisting of various single equipment and components of the hydrogen
production system. If necessary, the method of hoisting and handling shall be
illustrated with drawings.
8.1.2 Handling and hoisting instructions shall determine the center of gravity of
the hydrogen production system, to facilitate the handling of cranes and forklifts.
8.2 System and equipment drawings
8.2.1 The manufacturer shall provide drawings of various system processes,
equipment structure and electrical automatic control, which are required in the
installation, operation and maintenance of the water electrolysis system for
hydrogen production.
8.2.2 The drawings to be provided by the manufacturer shall include but not
limited to the following.
8.3 Instruction manual
8.3.1 The instruction manual shall be provided by the manufacturer and include
the following.
8.3.2 If the hydrogen production system is equipped with a remote monitoring
system, the manufacturer shall provide the program for the use of this remote
monitoring system and how to change the program.
8.3.3 If necessary, the remote monitoring system program provided by the
manufacturer must at least solve the following problems.
8.4 Installation and maintenance manual
8.4.1 The manufacturer shall provide installation and maintenance
requirements and guidelines. The on-site layout and design of the water
electrolysis system for hydrogen production shall follow the regulations of GB
50177.
8.4.4 The installation and maintenance manual requires periodic inspections of
the hydrogen production system, which shall be carried out by professionals.
8.4.5 The installation and maintenance manual shall also give a detailed
introduction to the maintenance of the hydrogen production system used in the
graded zone.
8.4.6 The installation and maintenance manual shall contain the corresponding
safety technical requirements. The content shall comply with the regulations in
GB/T 37563.
9 Packaging
9.1 The packaging of the water electrolysis system for hydrogen production
shall meet the requirements of GB/T 13384.And pack it according to the
number, item name and pcs of the packing list.
9.2 The packaging and transportation of pressure vessels shall comply with the
regulations of JB/T 4711.
9.3 When the product leaves the factory, the alkaline water electrolysis system
for hydrogen production shall be protected by nitrogen filling. The nitrogen filling
pressure shall be ≥0.05 MPa.
9.5 The packaging of export products shall comply with the provisions of GB/T
19142.The wood packaging materials shall be quarantined in accordance with
the provisions of GB/T 28060.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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