High-efficiency modularized PEM electrolytic cell comprehensive performance testing machine

Abstract

The utility model provides an efficient modularized PEM electrolytic bath comprehensive performance testing machine, which relates to the technical field of hydrogen production equipment, and comprises a rack, a workbench is arranged on the rack, a control bracket is arranged on the workbench, and a water tank and a deionization column are arranged on the control bracket; wherein the water tank is communicated with the first water pump, the first water pump is communicated with the deionization column, and the deionization column is communicated with the water tank, so that a water circulation loop is formed; the workbench is provided with a plurality of test operation stations, and each test operation station is independently provided with a waterway interface, a hydrogen interface and an oxygen interface. The high-efficiency modularized PEM electrolytic bath comprehensive performance testing machine has the beneficial effects that the water quality is ensured through water circulation, the working table is provided with a plurality of test operation stations capable of testing electrolytic baths, and the plurality of test operation stations are independently controlled, so that a plurality of electrolytic baths can be tested at the same time, and the overall test efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen production equipment technical field especially, it is a kind of high -efficient modularization PEM electrolytic cell comprehensive performance testing machine. BACKGROUND

[0002] PEM (Proton Exchange Membrane) water electrolysis hydrogen production is a kind of green hydrogen production technology with pure water as raw material, and its core principle is to decompose pure water into hydrogen and oxygen under the action of direct current by using proton exchange membrane as diaphragm.In this process, the proton exchange membrane adopts perfluorosulfonic acid material, which not only can effectively prevent electron conduction and avoid short-circuit phenomenon, but also can block the mutual penetration of anode and cathode gas, to ensure the safe separation of hydrogen and oxygen.At the same time, since the surface is covered with catalyst, PEM water electrolysis technology can realize efficient reaction at low voltage, with high energy conversion efficiency.

[0003] In addition, PEM water electrolysis technology also has strong anti-interference characteristics, which can adapt to unstable power output scenarios such as photovoltaic power generation, wind power generation and tidal power generation.This makes PEM water electrolysis technology can realize green hydrogen production from the source, and provides an important way for efficient use of renewable energy.However, although PEM water electrolysis technology itself is relatively mature, but the test equipment matched with it has many deficiencies, which seriously restricts the large-scale popularization and application of the technology.

[0004] At present, most of the traditional PEM electrolytic cell test equipment has obvious limitations in function design and test efficiency, which directly affects the research and development progress and product quality control of PEM electrolytic cell;The specific limitations are reflected in the following four aspects:

[0005] Limited single test capacity: traditional PEM electrolytic cell test equipment can usually only test one PEM electrolytic cell, and this single test mode leads to low overall efficiency.In actual production, enterprises often need to detect the performance of a large number of electrolytic cells, and the method of testing only one electrolytic cell at a time obviously cannot meet this demand.For example, when the production line needs to test 100 electrolytic cells, the traditional equipment may need to spend several days or even longer time to complete all test tasks.Compared with this, if multi-channel parallel test can be realized, all electrolytic cells can be detected in a short time, and the test efficiency can be significantly improved.

[0006] Low test efficiency: Due to the limited single-test capacity of traditional equipment, the overall test efficiency is also severely affected. In modern industrial production, time is cost, and inefficient test processes not only prolong the delivery cycle of products, but also may cause problems such as inventory accumulation and capital occupation. In addition, with the rapid growth of market demand, enterprises need to respond quickly to order requirements, and the low test capacity of traditional equipment obviously cannot meet the flexibility requirements.

[0007] Lack of batch test capability: In a large-scale production environment, batch test capability is an important guarantee to ensure product quality consistency. However, traditional PEM electrolyzer test equipment cannot support simultaneous testing of multiple electrolyzers, which makes enterprises have to invest more manpower and resources to make up for the lack of equipment functions when facing large-scale production tasks. For example, in order to complete the test task of multiple electrolyzers, enterprises may need to purchase multiple traditional equipment or increase the number of operating personnel, thereby further increasing production costs.

[0008] Test environment limitations: Traditional tests are conducted under normal pressure and cannot simulate the high-pressure environment of actual applications.

[0009] In view of the above problems, it has become a technical problem to be solved urgently to develop a PEM electrolyzer test equipment capable of rapid and large-scale testing. Invention content

[0010] The utility model overcomes the shortcomings in the prior art and provides a high-efficiency modular PEM electrolyzer comprehensive performance testing machine, which helps to test electrolyzers in large quantities and improves overall test efficiency.

[0011] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0012] The utility model provides a kind of high-efficiency modular PEM electrolytic cell comprehensive performance test machine, including rack, the rack is equipped with workbench, the workbench is equipped with control support, the control support is equipped with water tank and deionization column;Wherein, the water tank is communicated with first water pump, the first water pump is communicated with deionization column, the deionization column is communicated with water tank, to form water circulation loop;The workbench is equipped with a plurality of test operation stations, each test operation station is independently configured with waterway interface, hydrogen gas interface and oxygen gas interface;Second water pump is further provided in the control support, the inlet of second water pump is communicated with water tank, the outlet of second water pump is communicated with waterway interface, the oxygen gas interface is communicated with water tank, the hydrogen gas interface is communicated with the inlet of first water gas separator, the gas outlet of first water gas separator is communicated with the inlet of constant pressure overflow valve, the outlet of constant pressure overflow valve is directly emptied treatment;The liquid outlet of first water gas separator is communicated with the inlet of second water gas separator, the liquid outlet of second water gas separator is communicated with water tank, the gas outlet of second water gas separator is directly emptied treatment.

[0013] Further, the water tank is connected with water inlet pipe and drain pipe, the water inlet pipe is equipped with water replenishment valve, and the drain pipe is equipped with drain valve.

[0014] Further, the water tank is equipped with exhaust hole for oxygen emptying.

[0015] Further, the control support is equipped with electrical cabinet, and the electrical cabinet is equipped with operation panel.

[0016] Further, the electrical cabinet is provided with emergency master switch, and the electrical cabinet is equipped with heat dissipation area.

[0017] Further, each test operation station is independently configured with electrolytic cell power supply interface and starting switch, and the starting switch is electrically connected with second water pump.

[0018] Further, the control support includes integrated plate towards the side of workbench, and test operation station is located on integrated plate.

[0019] Compared with prior art, the utility model has the beneficial effects that:

[0020] The high-efficiency modular PEM electrolytic cell comprehensive performance test machine guarantees water quality through water circulation, and workbench is equipped with a plurality of test operation stations capable of testing electrolytic cell, and multiple test operation stations are independently controlled, so that multiple electrolytic cells can be tested simultaneously, and overall test efficiency is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is the overall structural diagram of the high-efficiency modular PEM electrolytic cell comprehensive performance testing machine;

[0023] Figure 2 This is a schematic diagram of the operation of a high-efficiency modular PEM electrolytic cell comprehensive performance testing machine.

[0024] In the picture:

[0025] 1. Frame; 2. Workbench; 3. Control bracket; 4. Water tank; 5. Deionization column; 6. First water pump; 7. Test operation station; 701. Water interface; 702. Hydrogen interface; 703. Oxygen interface; 704. Electrolytic cell power interface; 705. Start switch; 8. Second water pump; 9. First water-gas separator; 10. Second water-gas separator; 11. Constant pressure overflow valve; 12. Water inlet pipe; 13. Drain pipe; 14. Water supply valve; 15. Drain valve; 16. Electrical cabinet; 1601. Operation panel; 1602. Heat dissipation area; 17. Emergency main switch; 18. Integrated board; 19. Electrolytic cell. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] like Figure 1 as well as Figure 2 As shown, this utility model claims protection for a high-efficiency modular PEM electrolyzer comprehensive performance testing machine, including a frame 1, a workbench 2 on the frame 1, a control support 3 on the workbench 2, a water tank 4 and a deionization column 5 on the control support 3; wherein, the water tank 4 is connected to a first water pump 6, the first water pump 6 is connected to the deionization column 5, and the deionization column 5 is connected to the water tank 4, thereby forming a water circulation loop; during water circulation, the deionization column 5 can remove various impurity ions in the water, such as heavy metal cations such as iron, chromium, and nickel. Through the treatment of the deionization column 5, the water can reach the high purity standard required by the PEM electrolyzer, ensuring that the electrolysis reaction can be carried out in a pure water environment, and improving the yield and quality of hydrogen.

[0028] The test machine is provided with a plurality of test operation stations 7 capable of testing the electrolytic cell 19 on the workbench 2, which can simultaneously test a plurality of electrolytic cells 19, thereby facilitating mass testing and improving efficiency; each test operation station 7 is independently provided with a waterway interface 701, a hydrogen gas interface 702 and an oxygen gas interface 703; when the electrolytic cell 19 is connected for testing, the electrolytic cell 19 is placed on the workbench 2 corresponding to the test operation station 7, the waterway interface 701 is communicated with the water inlet of the electrolytic cell 19 through a connecting pipe, the hydrogen gas outlet of the electrolytic cell 19 is communicated with the hydrogen gas interface 702, and the oxygen gas outlet of the electrolytic cell 19 is communicated with the oxygen gas interface 703; the control bracket 3 is further provided with a second water pump 8, the inlet of the second water pump 8 is communicated with the water tank 4, the outlet of the second water pump 8 is communicated with the waterway interface 701, the oxygen gas interface 703 is communicated with the water tank 4, the hydrogen gas interface 702 is communicated with the inlet of the first water-gas separator 9, the gas outlet of the first water-gas separator 9 is communicated with the inlet of the constant pressure overflow valve 11, and the outlet of the constant pressure overflow valve 11 is directly discharged.

[0029] Therefore, when the second water pump 8 is started, the water in the water tank 4 is extracted into the electrolytic cell 19 through the waterway interface 701, the hydrogen gas generated by the electrolytic cell 19 is separated from water in the first water-gas separator 9, in actual application, when the hydrogen gas production in the first water-gas separator 9 increases to cause the system pressure to rise, the constant pressure overflow valve 11 is opened to a certain degree to release part of the gas, so that the pressure is reduced to a set range to maintain the safety of the system, thereby simulating the high-pressure environment of the electrolytic cell 19 in actual application. The gas-liquid separated from the first water-gas separator 9 is further separated in the second water-gas separator 10, the liquid finally flows back to the water tank 4 from the liquid outlet of the second water-gas separator 10, and the hydrogen gas is directly discharged. The oxygen gas generated by the electrolytic cell 19 flows back to the water tank 4 along the waterway, and the water tank 4 is provided with an exhaust hole for discharging oxygen gas, so that the oxygen gas in the water tank 4 can also be discharged to the outside.

[0030] The water tank 4 is connected with a water inlet pipe 12 and a drain pipe 13, the water inlet pipe 12 is provided with a water replenishing valve 14, and the drain pipe 13 is provided with a drain valve 15; the water replenishing valve 14 is opened to allow water to flow into the water tank 4 to replenish water, and the drain valve 15 is opened to allow the water in the water tank 4 to flow out of the drain pipe 13. In order to improve the intelligence, a liquid level sensor can be additionally arranged in the water tank 4, and when the water level in the water tank 4 is lower than the set value of the liquid level sensor, the liquid level sensor can control the water replenishing valve 14 to be opened to replenish water in the water tank 4.

[0031] The control support 3 is provided with an electrical cabinet 16, and the electrical cabinet 16 is provided with an operation panel 1601 which can be used for the control of the whole machine and parameter display.

[0032] The electrical cabinet 16 is provided with an emergency main switch 17, and in an emergency state, the emergency main switch 17 can be pressed to be powered off to ensure safety; the electrical cabinet 16 is provided with a heat dissipation area 1602 which is helpful for heat dissipation of the electrical cabinet 16.

[0033] Each test operation station 7 is independently provided with an electrolytic cell power supply interface 704 and a starting switch 705, the electrolytic cell power supply interface 704 is used for power supply of positive and negative connection lines of the electrolytic cell 19, and the starting switch 705 is electrically connected with the second water pump 8 and is used for controlling the second water pump 8 to start water supply test of the electrolytic cell 19.

[0034] The control support 3 comprises an integrated plate 18 towards one side of the workbench 2, and the test operation station 7 is on the integrated plate 18, which is helpful for an operator to stand on the same side of the workbench 2 to conveniently detect multiple electrolytic cells 19 on different test operation stations 7 at the same time, and the single-person rapid operation efficiency is improved.

[0035] When the high-efficiency modular PEM electrolytic cell comprehensive performance test machine works, the first water pump 6 forms water circulation of the water tank 4 and the deionization column 5 to remove impurity ions in water and ensure water purity; the second water pump 8 draws water in the water tank 4 into the electrolytic cell 19 through a waterway interface, and the electrolytic cell 19 decomposes water to generate hydrogen and oxygen. Hydrogen enters the first water-gas separator 9 through a hydrogen interface 702, and when the pressure rises, a constant pressure overflow valve 11 adjusts the pressure, and the separated gas-liquid is separated again through the second water-gas separator 10, the liquid returns to the water tank 4, and the hydrogen is exhausted. Oxygen returns to the water tank 4 through a waterway with the water and is discharged through an exhaust hole. The water tank 4 realizes water supply and drainage through a water supply valve 14 and a drain valve 15. The workbench 2 in the test machine is provided with a plurality of test operation stations 7 which can test the electrolytic cell 19, each test operation station is independently controlled, multiple electrolytic cells 19 can be tested at the same time, and the overall test efficiency is improved.

[0036] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, but any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A high-efficiency modular PEM electrolytic cell comprehensive performance testing machine, characterized in that: The system includes a frame (1), a workbench (2) on the frame (1), a control bracket (3) on the workbench (2), a water tank (4) and a deionization column (5) on the control bracket (3); wherein the water tank (4) is connected to a first water pump (6), the first water pump (6) is connected to the deionization column (5), and the deionization column (5) is connected to the water tank (4), thereby forming a water circulation loop; the workbench (2) is provided with several test operation stations (7), each test operation station (7) is independently equipped with a water interface (701), a hydrogen interface (702) and an oxygen interface (703); the control bracket (3) is also provided with a second water pump (8), the first water pump (8) is connected to the first water pump (6), the first water pump (6) is connected to the first water pump (6), the first water pump (6) is connected to the first water pump (7), the first water pump (8 ... The inlet of the second water pump (8) is connected to the water tank (4), the outlet of the second water pump (8) is connected to the water interface (701), the oxygen interface (703) is connected to the water tank (4), the hydrogen interface (702) is connected to the inlet of the first water-gas separator (9), the gas outlet of the first water-gas separator (9) is connected to the inlet of the constant pressure overflow valve (11), and the outlet of the constant pressure overflow valve (11) is directly vented; the liquid outlet of the first water-gas separator (9) is connected to the inlet of the second water-gas separator (10), the liquid outlet of the second water-gas separator (10) is connected to the water tank (4), and the gas outlet of the second water-gas separator (10) is directly vented.

2. The high-efficiency modular PEM electrolytic cell comprehensive performance testing machine according to claim 1, characterized in that: The water tank (4) is connected to an inlet pipe (12) and a drain pipe (13). The inlet pipe (12) is equipped with a water supply valve (14), and the drain pipe (13) is equipped with a drain valve (15).

3. The high-efficiency modular PEM electrolytic cell comprehensive performance testing machine according to claim 2, characterized in that: The water tank (4) is provided with an exhaust port for oxygen venting.

4. The high-efficiency modular PEM electrolytic cell comprehensive performance testing machine according to claim 1, characterized in that: The control bracket (3) is equipped with an electrical cabinet (16), and the electrical cabinet (16) is equipped with an operation panel (1601).

5. The high-efficiency modular PEM electrolytic cell comprehensive performance testing machine according to claim 4, characterized in that: The electrical cabinet (16) is equipped with an emergency main switch (17), and the electrical cabinet (16) is provided with a heat dissipation area (1602).

6. The high-efficiency modular PEM electrolytic cell comprehensive performance testing machine according to claim 1, characterized in that: Each of the test operation stations (7) is independently equipped with an electrolytic cell power interface (704) and a start switch (705), which is electrically connected to the second water pump (8).

7. The high-efficiency modular PEM electrolytic cell comprehensive performance testing machine according to claim 1, characterized in that: The control bracket (3) includes an integrated plate (18) facing the workbench (2), and the test operation station (7) is located on the integrated plate (18).

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