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Mechanical Industry Standard of the People's Republic of China
JB/T5903-96
Water Electrolysis Hydrogen Production Equipment
1996-09-03 Issued
Ministry of Machinery Industry of the People's Republic of China
1997-07-01 Implementation
JB/T5903-96
This standard is a revision of four standards: ZBJ76009.1-88 "Technical Conditions for Water Electrolysis Hydrogen Production Equipment", ZBJ76009.288% "Performance Test Methods for Water Electrolysis Hydrogen Production Equipment", ZBJ76032-90 "Model Compilation Method for Water Electrolysis Hydrogen Production Equipment" and JB5903-92 "Type and Basic Parameters of Water Electrolysis Hydrogen Production Equipment". The revised standard not only constitutes a complete product standard in terms of form and content, but also adds new content in terms of technical requirements, test methods and inspection rules of the standard. This standard will be implemented from July 1, 1997, and will replace the four standards ZBJ76009.1-88, ZBJ76009.2-88, ZBJ7603-90, and JB5903-92.
Appendix A, Appendix B, and Appendix C of this standard are all appendices of the standard. This standard is proposed and managed by the Technical Committee for Standardization of Gas Separation and Liquefaction Equipment of the Ministry of Machinery Industry. The drafting units of this standard are Harbin Environmental Protection Hydrogen Production Equipment Industry Company, Hangzhou Oxygen Generator Research Institute, Suzhou Water Electrolysis Ammonia Production Equipment Company, and China Shipbuilding Industry Corporation 718 Research Institute. The main drafters of this standard are Dong Guobin, Chen Yongliang, Jiang Yongfu, Chen Wenli, and Liu Zhong. 1 Scope
Machinery Industry Standard of the People's Republic of China
Water Electrolysis Hydrogen Production Equipment
JB/T 5903-96
Replaces ZBJ76009.1-88
ZB J76 009.288
ZBJ76032-90
JB590392
This standard specifies the product classification, basic parameters, models, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of industrial filter press water electrolysis hydrogen production equipment. This standard applies to industrial filter press water electrolysis hydrogen production equipment (hereinafter referred to as hydrogen production equipment). Note: The volume of hydrogen and oxygen gas in this standard is the standard state, that is, the gas volume at 0C, 101.325kPa (absolute pressure), and the unit is m2. Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB15089
GB191-90
GB321-80
GB 629 -81
GB1220—92
GB/T 197292
GB230680
GB282987
GB3863—83
GB 386483 | | tt | t||GB/T13306—91
GB/T 13384-92
GBJ29-90
JB2111-77
JB2112-77
JB2115-77
JB2536-80
Steel pressure vessels
Packaging, storage and transportation pictorial symbols
Priority numbers and priority number systems
Sodium hydroxide
Stainless acid-resistant steel
Disc spring
Potassium hydroxide
Technical conditions
Periodic inspection counting sampling procedures and sampling tables (applicable to the inspection of production process stability) Industrial gaseous oxygen
Industrial hydrogen
Asbestos rubber sheet
Industrial automation instrument gas source pressure range and quality Hydrogen use safety technical regulations
Electrolytic nickel| |tt||Basic identification colors and symbols for industrial pipelinesCast carbon steel parts for general engineering
Design specification for power installations in explosive and fire hazardous environmentsDesign specification for hydrogen and oxygen stations
General technical conditions for packaging of electromechanical products
Design specification for compressed air stations
Test method for bonding strength of metal coveringsTest method for porosity of metal coverings
Wet textured paper pasting method
Timed liquid flow method
Test method for thickness of metal coverings
Painting, packaging and transportation of pressure vessels
Approved by the Ministry of Machinery Industry on September 3, 1996
Implemented on July 1, 1997
JB288081
JB590292
JB/T6896—93
JC 21177
Product classification
JB/T5903—96
Technical conditions for steel welded atmospheric pressure vessels
Technical conditions for oxygen pipelines for air separation equipmentAir separation equipment
Surface cleanliness
Diaphragm asbestos cloth
Hydrogen production equipment is divided into three categories according to working pressure (gauge pressure): atmospheric pressure, low pressure and medium pressure: a) atmospheric pressure hydrogen production equipment p<0.1MPa;
b) low pressure hydrogen production equipment
0.1MPa≤p<1.6MPa;
c) medium pressure hydrogen production equipment
1.6MPa≤p<10MPa.
4 Basic parameters
The hydrogen production parameter series of hydrogen production equipment shall be as specified in Table 1. Table 1
Hydrogen production m/h
1,2,3，4,5,6,8,10,12.16,20,25,30,40,50,60,70,80,100.125,150,200，250，320，400，500
Note: When the parameter series value cannot meet the requirements, the R10, R20 or R40 priority series value in GB321 is allowed to be used. 5 Model
5.1 Model compilation method
The model of hydrogen production equipment consists of uppercase Chinese pinyin letters and Arabic numerals, and the expression method should comply with the following provisions. DQ
5.2 Model Examples
Example 1: DQ-50
Variant design code (expressed in Arabic numerals in sequence) Working pressure, MPa (gauge pressure), hydrogen production equipment at normal pressure can be omitted Hydrogen production, m2/h
Water electrolysis hydrogen production equipment code, taking the Chinese phonetic alphabetic initials of the word "electricity" and the word "hydrogen" to indicate a hydrogen production equipment with a hydrogen production of 50m/h and a working pressure of normal pressure. Example 2: DQ-10/1.6
Indicates a hydrogen production equipment with a hydrogen production of 10m*/h and a working pressure of 1.6MPa. Example 3: DQ-20/3.2-2
Indicates a hydrogen production equipment with a hydrogen production of 20m/h and a working pressure of 3.2MPa, and a second variant improved design. Technical requirements
6.1 Environment and use conditions
The explosion-proof requirements of the hydrogen production room of the hydrogen production equipment shall comply with the relevant provisions of GB4962, GB50177 and GB50058. 6.1.1
The electrolyte sodium hydroxide or potassium hydroxide used in the hydrogen production equipment shall comply with the provisions of GR629 or GB2306 respectively. 6.1.2
JB/T5903-96
The water quality of the water for electrolysis (raw water) shall comply with the provisions of Table 2. Table 2
Resistivity
Iron ion content
Chloride ion content
Suspended solids
Indicator value
>1.0×105
The cooling water supply pressure should be 0.15~0.35MPa, and the water quality requirements should comply with the provisions of GBJ29. 6.1.4
6.1.5 The pressure range and quality requirements of the instrument gas source shall comply with the provisions of GB4830. 6.2 General provisions
6.2.1 Hydrogen production equipment shall comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 6.2.2 The design of hydrogen production equipment must comply with the relevant provisions of GB4962, GB50058, GB50177 and national safety and environmental protection laws and regulations. 6.2.3 The atmospheric pressure vessels in the hydrogen production equipment shall comply with the provisions of JB2880, and the low and medium pressure vessels shall comply with the relevant provisions of GB150 and the "Regulations on Safety Technical Supervision of Pressure Vessels" promulgated by the Ministry of Labor of the People's Republic of China. 6.3 Performance indicators
The performance indicators of hydrogen production equipment shall comply with the provisions of Table 3. Table 3
Hydrogen production
Hydrogen purity
Oxygen purity
Unit DC power consumption for hydrogen production
The unit of hydrogen and oxygen purity is volume percentage, 1
kW.h/m\H,
The power consumption indicators of hydrogen production equipment with a combined gas production of less than 10m/h shall be in accordance with the contract. 2
The materials required for hydrogen production equipment must comply with the provisions of relevant standards. The materials used to manufacture the main parts of the electrolyzer must have a material quality certificate. Nickel wire mesh materials shall comply with the provisions of GB6516. Stainless acid-resistant steel shall comply with the provisions of GB1220. Diaphragm asbestos cloth shall comply with the provisions of JC211. Sealing gasket materials shall comply with the provisions of GB3985. Parts in contact with hydrogen and oxygen are prohibited from using combustible materials. When users have special requirements for materials when placing orders, they shall be in accordance with the contract between the supply and demand parties. 6.5 Manufacturing
Indicator value
Rated value
JB/T5903--96
6.5.1 The manufacturing requirements of disc springs shall comply with the provisions of GB/T1972. 6.5.2 The inner and outer surfaces of the castings shall be smooth and free of defects such as bubbles, cracks and significant uneven thickness. Steel castings shall comply with the provisions of GB11352.
The welds of the main welded structural parts shall not have defects such as pores, slag inclusions and cracks. 6.5.3
6.5.4 Plated parts
6.5.4.1 The surface of the plated parts shall not have serious defects such as blistering, peeling, local lack of coating and scratches. The surface quality of the coating shall be 100% inspected.
6.5.4.2 The quality and inspection of the coating thickness, bonding strength and porosity of the plated parts shall comply with the provisions of JB2111, JB2112 and JB2115 respectively.
6.5.4.3 The sampling number and sampling method for the coating thickness, bonding strength and porosity of the plated parts shall comply with the relevant provisions of GB2829. Plated parts can be tested with test pieces that are electroplated simultaneously by the same process. 6.6 Others
6.6.1 The surface of parts in contact with hydrogen and oxygen shall be strictly degreased, and the surface oil and grease residue after degreasing shall not exceed 125mg/m°. The test method shall comply with the provisions of JB/T6896.
6.6.2 The hydrogen pipeline of hydrogen production equipment shall comply with the provisions of GB50177, the oxygen pipeline shall comply with the provisions of JB5902, and the pipeline identification color and identification symbol shall comply with the provisions of GB7231. The paint of hydrogen production equipment shall be in accordance with the drawings, and the paint of pressure vessels shall be in accordance with JB2536. The color of the same color topcoat shall be consistent. 6.6.3
The purchased parts and accessories of hydrogen production equipment shall have product certificates and be accepted according to relevant standards or contracts. 6.6.4
6.6.5 Under the condition that the user complies with the installation and use rules of hydrogen production equipment, if the product is damaged or cannot work normally due to manufacturing quality problems or material defects within 18 months from the date of shipment from the manufacturer, the manufacturer shall repair or replace it free of charge (excluding wearing parts). 7 Test method
7.1 Test conditions
7.1.1 The performance test of hydrogen production equipment can be carried out in the manufacturer or on-site. 7.1.2 The hydrogen production equipment to be tested must be qualified and have a product quality certificate. 7.1.3 Before the test, the test system shall be tested for airtightness. The test requirements and methods shall comply with the relevant provisions of GB150 and the "Regulations on Safety Technical Supervision of Pressure Vessels" issued by the Ministry of Labor of the People's Republic of China. 7.1.4 Before the power-on test, the hydrogen and oxygen operating systems must be purged and replaced with nitrogen. The oxygen content in the system after the purge shall not be greater than 1% (volume ratio).
7.1.5 The explosion-proof requirements at the performance test site shall comply with the provisions of GB50177. 7.1.6 The performance test of the hydrogen production equipment shall be carried out after the equipment has been running continuously and stably for 4 hours. The test gas output, purity and unit hydrogen production DC power consumption shall be carried out simultaneously, and the test shall be carried out once every 30 minutes for 4 consecutive times, and the average value shall be taken. 7.2 Test instruments and meters
7.2.1 The test instruments and meters shall have a valid calibration certificate issued by the manufacturer or measurement department. 7.2.2 The accuracy of the test instruments and meters shall not be lower than that specified in Table 4. 4
Test items
Gas production and unit DC power consumption for hydrogen production
Gas purity
7.3 Performance test
7.3.1 Hydrogen and oxygen gas production
JB/T 5903-96
Name of instruments and meters
Gas flow meter
Thermometer
Pressure gauge
DC ammeter
DC voltmeter
DC transformer, shunt
Oxygen analyzer
Ammonia analyzer
Accuracy level
±1℃
Level 5, the minimum division value is 0.01% (volume ratio) The test of hydrogen and oxygen gas production can be carried out by gas flow meter, volumetric method and current test value calculation method. The hydrogen production can also be calculated by doubling the oxygen production test value. The three methods are equivalent. When a dispute arises between the supply and demand parties, the dispute shall be arbitrated by the nationally recognized product quality supervision and inspection center.
The hydrogen and oxygen gas production test can use a gas flow meter suitable for hydrogen and oxygen gas media, and shall comply with the relevant flow meter standards 7.3.1.1
or the provisions of the verification procedures.
7. 3. 1. 2
The volumetric method for testing gas production shall comply with the provisions of Appendix A (Appendix to the standard). The current test value calculation method shall comply with the provisions of Appendix B (Appendix to the standard). 7.3.1.3
7.3.2 Hydrogen and oxygen gas purity
7. 3. 2. 1
7. 3. 2. 2
7. 3. 2. 3
The hydrogen and oxygen gas purity test shall comply with the provisions of GB3634 and GB3863 respectively. The purity of hydrogen and oxygen gases can also be tested by hydrogen and oxygen analyzers, which should comply with the provisions of Appendix C (Appendix to the standard). The sampling location for hydrogen and oxygen gas purity testing should be at the hydrogen and oxygen gas sampling ports of the hydrogen production equipment. 7.3.3 Unit DC power consumption for hydrogen production
7. 3. 3. 1
The unit DC power consumption for hydrogen production of hydrogen production equipment refers to the electric energy consumed by the electrolytic cell to produce 1m of hydrogen, and the calculation is carried out according to formula (1). Wr.
Where: Wk.--Unit DC power consumption for hydrogen production, kW·h/m\; I--Total DC working current of the electrolytic cell, A; U
DC working voltage of the electrolytic cell, V;
-Hydrogen production during the test, m°/h;
-Test time, h.
Current and voltage test method
7. 3. 3. 2. 1
Line point.
7.3.3.2.2
（(1)
Use an ammeter to test the total DC working current flowing through the electrolyzer. The test position is at both ends of the electrolyzer or the DC converter. The test position of the DC working voltage of the electrolyzer is at the positive and negative contact points of the electrolyzer. 8 Inspection rules
8.1 Each hydrogen production equipment must be inspected and qualified by the quality inspection department of the manufacturer and accompanied by a product certificate before it can leave the factory. 5
JB/T5903-96
The test and inspection items specified in the hydrogen production equipment must be accompanied by a test report and inspection record. 8.2
8.3 The factory inspection items of the hydrogen production equipment shall be inspected according to the drawings and technical documents approved by the prescribed procedures. 8.4 The type inspection content of the hydrogen production equipment shall be in accordance with the items specified in Table 3 of this standard or the inspection items required by the contract; the performance test methods of the inspection items shall be in accordance with the provisions of 7.3 of this standard and Appendix A, Appendix B and Appendix C. .5 The test results of various performance indicators of hydrogen production equipment shall meet the requirements of Table 3. 9
Marking, packaging, transportation and storage
9.1 Marking
The product label of hydrogen production equipment shall be fixed in a conspicuous position, and the label size and technical requirements shall comply with the provisions of GB/T13306. 9.1.1
The label of the electrolyzer shall include the following:
a) Name of the manufacturer;
b) Product name;|| tt||c) Trademark;
d) Product model;
e) Manufacturing date and serial number;
f) Main product parameters:
Output: hydrogen m/h,
oxygen m/h;
Purity: hydrogen%;
Oxygen%:
Rated voltage, V;
Rated current, A;
Maximum allowable working pressure, MPa;
Weight of electrolyzer, kg.
9.1.3 The pressure vessel label shall include the following contents: a) Name of the manufacturing unit;
b) Container number;
c) Product name;
d) Trademark;
e) Date of manufacture;
f) Medium;
g) Design pressure, MPa;
h) Maximum allowable working pressure, MPa;
i) Test pressure, MPa;
j) Design temperature, °C;
k) Container category, class;
1) Container weight, kg;
m) Pressure vessel manufacturing license number.
9.1.4 The storage and transportation graphic signs of packaging boxes shall comply with the provisions of GB191. 9.2 Packaging
The packaging box design shall comply with the relevant provisions of transportation. The packaging of hydrogen production equipment shall comply with the relevant provisions of GB/T13384 and shall be packed according to the number, item name and number of pieces on the packing list. 9.2.2
The packaging and transportation of pressure vessels shall comply with the provisions of JB2536. JB/T 5903-96
9.2.4 For electrolyzers shipped as complete units, all water in the tank shall be drained before packaging. 9.2.5 All pipe openings shall be sealed or wrapped; protective measures shall be taken for flange connections, which can be fixed to the flange surface with 10mm thick wooden boards or suitable materials.
9.2.6 The random documents of the hydrogen production equipment shall be packaged in plastic bags and fixed in the packaging box. The accompanying documents shall include: a) product certificate;
b) product instruction manual;
e) list of accompanying equipment and accessories:
d) installation drawing;
e) pressure vessel product certificate, vessel instruction manual, quality certificate; f) other drawings and technical documents required by the contract. 9.3 Transportation and storage
9.3.1 During the transportation and storage of electrolyzers at temperatures below 0C, the accumulated water in the equipment must be drained and all inlets and outlets must be sealed. 9.3.2 Hydrogen production equipment shall be stored in a ventilated, dry warehouse or a covered place, at least 100mm above the ground; if the storage period exceeds the specified time, it shall be inspected and maintained in accordance with the relevant provisions of the product manual. 7
A1 The flow chart of the volumetric method test system is shown in Figure A1. Gas comes from water electrolyzer
Tender room
JB/T5903-96
Appendix A
Volumetric method to test gas production
(Appendix of the standard)
Donkey gas tank
Gas outlet
1-valve-1; 2-valve-2; 3~pressure gauge; 4-thermometer; 5-valve-3Figure A1
A2Test method
Volumetric method test system flow chart
A2.1 Before the test, the volume of the gas storage tank should be tested and calculated. A2.2Open valve-1, close valve-2 and valve-3, and accurately record the starting pressure and temperature of the gas in the gas storage tank. A2.3Open valve-2, close valve-1 and valve-3, and record the starting time. A2.4www.bzxz.net
After a certain period of time of filling with gas, close valve-2, open valve-1, record the end time, pressure and temperature in the gas storage tank, and calculate the gas production according to formula (A1).
In the formula: Q-
Gas production under standard conditions, m/h;
-Gas pressure under standard conditions, 0.101325MPa; pe
p-Absolute pressure of gas in the gas storage tank at the beginning, MPa; p:---Absolute pressure of gas in the gas storage tank at the end, MPa; T. --Gas temperature under standard conditions. 273K; T, gas temperature in the gas tank at the start, K; T:--gas temperature in the gas tank at the end, K; V.-gas tank volume, m";
-test time, h.
(A1)
Principle Summary
JB/T5903-96
Appendix B
Calculation of gas production by current test value
(Standard Appendix)
According to the law of electrolysis-the quantitative change of any substance in the electrolysis process obeys Faraday's law. B2 Faraday's law for hydrogen production by water electrolysis
Under standard conditions, 2×96500C of electricity can be used to electrolyze 1 mol of water to produce 1mol hydrogen and 1/2mol oxygen. The volume of 1mol hydrogen under standard conditions is 22.43×10-3m. Therefore, under standard conditions, the theoretical amount of electricity required to produce 1m hydrogen is as follows (B1): 2X96500X1000
3600×22.43
Calculate gas production from current test value
Calculate gas production from current test value according to formula (B2). Q:
Where: Q-
—Hydrogen production, m\/h;
DC working current passing through the electrolytic cell chamber, A; -Number of electrolytic cell chambers;
—Current efficiency (design selected), %.
A·h/m
(B2)43×10-3m Therefore, under standard conditions, the theoretical amount of electricity required to produce 1m hydrogen is as follows (B1): 2X96500X1000
3600×22.43
Calculate the gas production from the current test value
Calculate the gas production from the current test value according to formula (B2). Q:
Where: Q-
—hydrogen production, m\/h;
DC working current passing through the electrolytic cell chamber, A; - number of electrolytic cell chambers;
—current efficiency (designed), %.
A·h/m
(B2)43×10-3m Therefore, under standard conditions, the theoretical amount of electricity required to produce 1m hydrogen is as follows (B1): 2X96500X1000
3600×22.43
Calculate the gas production from the current test value
Calculate the gas production from the current test value according to formula (B2). Q:
Where: Q-
—hydrogen production, m\/h;
DC working current passing through the electrolytic cell chamber, A; - number of electrolytic cell chambers;
—current efficiency (designed), %.
A·h/m
(B2)
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