CN220952088U

CN220952088U - Multichannel PEM pure water electrolysis hydrogen production testing device

Info

Publication number: CN220952088U
Application number: CN202322714201.5U
Authority: CN
Inventors: 晏伟; 陈泽楷; 范芷萱; 郑朋朋; 宛雄标
Original assignee: Sunshine Hydrogen Energy Technology Co Ltd
Current assignee: Sunshine Hydrogen Energy Technology Co Ltd
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2024-05-14
Anticipated expiration: 2033-10-09

Abstract

The utility model belongs to the technical field of hydrogen production by water electrolysis, and discloses a multichannel PEM pure water electrolysis hydrogen production testing device. The multichannel PEM pure water electrolysis hydrogen production testing device comprises a rack, a power supply mechanism and a plurality of water supply mechanisms, wherein a testing table is arranged on the rack, a plurality of PEM electrolytic tanks are arranged on the testing table, the power supply mechanism is used for supplying power to the PEM electrolytic tanks, the water supply mechanisms are in one-to-one correspondence with the PEM electrolytic tanks (10), each water supply mechanism is used for supplying water to the PEM electrolytic tanks corresponding to the water supply mechanisms independently, so that parameters of pure water of each channel can be controlled independently, namely, different testing conditions can be used for testing each testing channel when a plurality of channels are tested simultaneously, the efficiency of design verification tests is improved, and the modularized design enables the multichannel PEM pure water electrolysis hydrogen production testing device to rapidly increase the number of the testing channels according to testing requirements, so that the practicality of the multichannel PEM pure water electrolysis hydrogen production testing device is improved.

Description

Multichannel PEM pure water electrolysis hydrogen production testing device

Technical Field

The utility model relates to the technical field of water electrolysis hydrogen production, in particular to a multichannel PEM pure water electrolysis hydrogen production testing device.

Background

The PEM pure water electrolytic hydrogen production has the advantages of stability, cleanness, no noise and the like, the accurate regulation and control of the temperature in the PEM electrolytic tank are realized through the accurate regulation and control of a monitoring unit and a control unit of the test bench of the conventional PEM pure water electrolytic hydrogen production test device, the multichannel test is realized through a highly integrated pure water supply mechanism and a power supply mechanism, and the public large water tank is required to be adopted for centralized water supply and temperature control, so that experiments cannot be designed by taking water supply parameters as variables, and the number of test channels is often limited by a water supply pipeline and cannot be greatly increased.

Therefore, a need exists for a multi-channel PEM pure water electrolysis hydrogen production test apparatus that addresses the problems of the prior art.

Disclosure of utility model

The utility model aims to provide a multi-channel PEM pure water electrolysis hydrogen production testing device, each PEM electrolytic tank is provided with an independent water supply mechanism, so that parameters of pure water of each channel can be independently controlled, namely, when a plurality of channels are tested simultaneously, different testing conditions and parameters can be used for testing each testing channel, and the efficiency of a design verification test is improved.

To achieve the purpose, the utility model adopts the following technical scheme:

A multi-channel PEM pure water electrolysis hydrogen production test device comprising:

The system comprises a rack, wherein a test bench is arranged on the rack, and a plurality of PEM electrolytic tanks are arranged on the test bench;

the power supply mechanism is used for supplying power to the PEM electrolytic cells;

And the water supply mechanisms are in one-to-one correspondence with the PEM electrolytic cells, and each water supply mechanism is used for independently supplying water to the PEM electrolytic cells corresponding to the water supply mechanisms.

Optionally, each of the water supply mechanisms includes a water tank for storing pure water and a water supply pump assembly for communicating the water tank with its corresponding PEM electrolyzer and supplying the pure water to the PEM electrolyzer.

Optionally, the water supply pump assembly comprises a peristaltic pump, a pure water supply pipe and a pure water return pipe, wherein one end of the pure water supply pipe is connected with a water supply joint of the water tank, the other end of the pure water supply pipe is connected with a water inlet of the PEM electrolytic tank, one end of the pure water return pipe is connected with a water outlet of the PEM electrolytic tank, the other end of the pure water return pipe is connected with a water return joint of the water tank to form a circulation path, and the peristaltic pump is used for driving pure water to flow in the circulation path.

Optionally, the water supply pump assembly further comprises a water valve and a mass flowmeter, the water valve and the mass flowmeter are all arranged on the pure water supply pipe, the water valve and the mass flowmeter are all in communication connection with an upper computer, the mass flowmeter is used for monitoring the pure water mass flow in the pure water supply pipe, and the upper computer is used for receiving a mass flow signal of the mass flowmeter and sending a control signal to the water valve so as to adjust the pure water mass flow in the pure water supply pipe.

Optionally, the water supply pump assembly further comprises a cooling fan, wherein the cooling fan is used for cooling the peristaltic pump.

Optionally, be equipped with moisturizing subassembly in the water tank, moisturizing subassembly includes moisturizing jar, moisturizing pipe and moisturizing valve, moisturizing pipe intercommunication moisturizing jar with the water tank, the moisturizing valve set up in on the moisturizing pipe, the moisturizing valve is opened, pure water in the moisturizing jar passes through moisturizing pipe is replenished to in the water tank.

Optionally, the water supply mechanism further comprises a first heating assembly for heating the pure water in the water tank and maintaining the pure water at a preset temperature.

Optionally, the water supply mechanism further comprises a second heating assembly, the second heating assembly comprises a first heating unit and a second heating unit, the first heating unit is used for heating an anode plate of the PEM electrolytic tank, the second heating unit is used for heating a cathode plate of the PEM electrolytic tank, the temperature of the anode plate or the cathode plate exceeds an alarm temperature value, and the first heating unit and the second heating unit are closed at the same time.

Optionally, the first heating unit comprises a first main circuit and a first heating circuit, the first heating circuit is connected with the first main circuit, the first heating circuit is provided with a first contactor, and the first main circuit is provided with a second contactor;

The second heating unit comprises a second main loop and a second heating loop, the second heating loop is connected with the second main loop, the second heating loop is provided with a second contactor, and the second main loop is provided with a first contactor;

the first contactor is used for controlling the on-off of the first heating loop and the second main loop, the second contactor is used for controlling the on-off of the second heating loop and the first main loop, the anode plate temperature exceeds the alarm temperature, the first contactor is disconnected, the cathode plate temperature exceeds the alarm temperature, and the second contactor is disconnected.

Optionally, the first heating loop further includes a first thermal resistor, a first temperature control meter, and a first heating rod, where the first heating rod is disposed on the anode plate, the first thermal resistor is used for feeding back the temperature of the anode plate, the first temperature control meter is connected with the first thermal resistor in a communication manner, and the first temperature control meter is used for adjusting the heating temperature of the first heating rod;

the second heating loop further comprises a second thermal resistor, a second temperature control meter and a second heating rod, wherein the second heating rod is arranged on the cathode plate, the second thermal resistor is used for feeding back the temperature of the cathode plate, the second temperature control meter is in communication connection with the second thermal resistor, and the second temperature control meter is used for adjusting the heating temperature of the second heating rod.

Optionally, the multi-channel PEM pure water electrolysis hydrogen production testing device further comprises a plurality of hydrogen detection mechanisms, wherein the hydrogen detection mechanisms are in one-to-one correspondence with the PEM electrolytic cells, each hydrogen detection mechanism comprises a hydrogen leakage alarm component, each hydrogen leakage alarm component is arranged above each PEM electrolytic cell and is electrically connected with a hydrogen production power supply circuit, and each hydrogen leakage unit is used for cutting off the hydrogen production power supply circuit after detecting hydrogen leakage in each PEM electrolytic cell.

Optionally, the hydrogen detection mechanism further comprises a pulse exhaust assembly or a pneumatic check valve, wherein the pulse exhaust assembly or the pneumatic check valve is arranged on a hydrogen outlet pipeline of the PEM electrolyzer, and the pulse exhaust assembly or the pneumatic check valve is used for preventing air from flowing backwards into the hydrogen outlet pipeline.

Optionally, a back pressure valve is arranged on an oxygen outlet pipe of the PEM electrolyzer, and the back pressure valve is used for enabling the hydrogen pressure in the hydrogen outlet pipe to reach a preset pressure.

Optionally, the multichannel PEM pure water electrolysis hydrogen production testing device further comprises a current transmitter and a multichannel data recorder, wherein a wire connected with the anode of the PEM electrolyzer passes through the current transmitter, the current transmitter is in communication connection with the multichannel data recorder, and the multichannel data recorder is used for recording the current of the wire detected by the current transmitter.

Optionally, the multichannel data recorder further comprises a plurality of voltage sensors, and each two voltage sensing wires are respectively connected with the anode and the cathode of the PEM electrolytic cell so as to detect the voltage between the anode and the cathode of the PEM electrolytic cell.

The beneficial effects are that:

According to the multi-channel PEM pure water electrolysis hydrogen production testing device, each PEM electrolytic tank is provided with the independent water supply mechanism, each water supply mechanism supplies water to the corresponding PEM electrolytic tank, so that the water supply parameters of each testing channel can be independently controlled, the water supply parameters can comprise water supply flow, water supply temperature, water supply components and the like, namely, when a plurality of channels are tested simultaneously, different testing environments can be designed for each testing channel according to the water supply parameters, the design verification test efficiency is improved, each water supply mechanism and the corresponding PEM electrolytic tank are provided with one testing module, the multi-channel PEM pure water electrolysis hydrogen production testing device can achieve the purpose of rapidly increasing the number of the testing channels only by prolonging the length of a rack and increasing the number of the testing modules according to testing requirements, and the practicability of the multi-channel PEM pure water electrolysis hydrogen production testing device is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of a multi-channel PEM pure water electrolytic hydrogen production testing device provided by the utility model;

Fig. 2 is a circuit diagram of a first heating circuit, a first main circuit, a second heating circuit, and a second main circuit provided by the present utility model.

In the figure:

10. A PEM electrolyzer;

100. A frame; 110. a test bench; 200. a water supply mechanism; 210. a water tank; 220. a peristaltic pump; 230. pure water supply pipe; 240. a pure water return pipe; 310. a first heating circuit; 311. a first contactor; 312. a first thermal resistor; 313. a first temperature control table; 314. a first heating rod; 320. a first main circuit; 410. a second heating circuit; 411. a second contactor; 412. a second thermal resistor; 413. a second temperature control table; 414. a second heating rod; 420. a second main circuit; 500. a back pressure valve.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a multi-channel PEM pure water electrolytic hydrogen production testing device, as shown in fig. 1, which comprises a rack 100, a power supply mechanism and a plurality of water supply mechanisms 200, wherein a testing table 110 is arranged on the rack 100, a plurality of PEM electrolytic tanks 10 are arranged on the testing table 110, and the power supply mechanism is used for supplying power to the PEM electrolytic tanks 10, so that the purpose of electrolytic hydrogen production is realized; the water supply mechanisms 200 are in one-to-one correspondence with the PEM electrolyzers 10, and each water supply mechanism 200 is used for separately supplying water to the PEM electrolyzer 10 corresponding thereto. Therefore, the multi-channel PEM pure water electrolysis hydrogen production test device allows testing of multiple channels simultaneously, the efficiency and the productivity of experiments can be improved, each PEM electrolytic tank 10 is provided with an independent water supply mechanism 200, so that the water supply parameters of each channel can be independently controlled, the water supply parameters can comprise water supply flow, water supply temperature, water supply components and the like, namely, when the multiple channels are tested simultaneously, different test conditions can be used for each test channel, the efficiency of design verification test is improved, each water supply mechanism 200 and the corresponding PEM electrolytic tank 10 are provided with one test module, the modular design ensures that the multi-channel PEM pure water electrolysis hydrogen production test device can achieve the aim of rapidly increasing the number of test channels by only prolonging the length of a rack 100 and increasing the number of test modules according to test requirements, and the practicability of the multi-channel PEM pure water electrolysis hydrogen production test device is improved.

Optionally, the power supply mechanism includes a hydrogen production power supply, the hydrogen production power supply includes a plurality of sets of power supply connectors, each set of power supply connectors includes a positive electrode wire and a negative electrode wire, the positive electrode wire is connected with the anode of the PEM electrolytic tank 10, and the negative electrode wire is connected with the cathode of the PEM electrolytic tank 10, thereby forming a conducting loop, and supplying power to the PEM electrolytic tank 10 to fulfill the aim of producing hydrogen by electrolysis.

Further, the hydrogen production power supply in the embodiment is a programmable direct current power supply, and different power output parameters (including voltage, current and the like) can be set for each test channel, so that the test requirements of different test channels and the test requirements under different working conditions are met, and the practicability of the multi-channel PEM pure water electrolysis hydrogen production test device is greatly improved.

Alternatively, each water supply 200 includes a water tank 210 for storing pure water and a water supply pump assembly for communicating the water tank 210 with its corresponding PEM electrolyzer 10 and supplying pure water to the PEM electrolyzer 10. Therefore, each PEM electrolyzer 10 corresponds to a separate water tank, and the composition and the temperature and the flow rate in the water tank can be changed according to the test requirements, so that compared with the concentrated water supply of a large water tank in the prior art, the water supply parameter can be used as a variable to design experiments, thereby meeting the diversified test requirements.

Optionally, the water supply pump assembly includes a peristaltic pump 220, a pure water supply pipe 230 and a pure water return pipe 240, one end of the pure water supply pipe 230 is connected with a water supply joint of the water tank 210, the other end is connected with a water inlet of the PEM electrolytic tank 10, one end of the pure water return pipe 240 is connected with a water outlet of the PEM electrolytic tank 10, and the other end is connected with a water return joint of the water tank 210 to form a circulation path, and the peristaltic pump 220 is used for driving pure water to flow in the circulation path. During electrolysis, the pure water supply pipe 230 conveys pure water from the water tank 210 to the water inlet of the PEM electrolyzer 10, then, pure water flows out of the water outlet of the PEM electrolyzer 10 through an electrolysis reaction, and returns to the water tank 210 through the pure water return pipe 240, thereby forming a circulation path, thereby ensuring that each PEM electrolyzer 10 has own water supply and return pipelines, and each channel can be carefully controlled and monitored to ensure that the PEM electrolyzer 10 operates under the required conditions.

Optionally, the water supply pump assembly further includes a water valve and a mass flowmeter, both of which are disposed on the pure water supply pipe 230, and the water valve and the mass flowmeter are all in communication connection with the host computer, the mass flowmeter is used for monitoring the pure water mass flow in the pure water supply pipe 230, and the host computer receives the mass flow signal of the mass flowmeter and sends a control signal to the water valve to adjust the pure water mass flow in the pure water supply pipe 230, so as to control the water quality in the electrolytic tank more accurately, thereby helping to maintain the stability of the PEM electrolytic tank 10, and helping to fine adjustment and control of experiments, thereby improving the reliability of the test results.

Specifically, the water valve may be an electromagnetic valve, an electric valve, a pneumatic valve, an electric ball valve, a regulating valve, or the like, and may be selected appropriately according to the actual use situation, and the kind of the water valve is not particularly limited in this embodiment.

Optionally, the water supply pump assembly further comprises a cooling fan for cooling the peristaltic pump 220, the presence of which is intended to reduce the operating temperature of the peristaltic pump 220, ensuring that the peristaltic pump 220 does not overheat during long periods of operation, thereby extending its lifetime.

Optionally, a water replenishing assembly is disposed in the water tank 210, the water replenishing assembly includes a water replenishing tank, a water replenishing pipe and a water replenishing valve, the water replenishing pipe is communicated with the water replenishing tank and the water tank 210, the water replenishing valve is disposed on the water replenishing pipe, the water replenishing valve is opened, pure water in the water replenishing tank is replenished into the water tank 210 through the water replenishing pipe, and the water replenishing valve is closed when water replenishing in the water tank 210 is not needed. The water is gradually consumed in the electrolysis process, so that the water level in the water tank 210 is too low, the pure water in the water tank 210 is always kept at the required water level through the water supplementing assembly, the water supplementing assembly is very important for maintaining the stable operation of the electrolysis tank, and the reliability and the accuracy of the test result are improved.

Optionally, the water supply mechanism 200 further includes a first heating assembly for heating the pure water in the water tank 210 and maintaining the pure water at a preset temperature, thereby ensuring that the water supplied to the PEM electrolyzer 10 has a preset temperature and improving the electrolysis efficiency and hydrogen production efficiency. In this embodiment, the heating component may be any component with a heating function by a person in the prior art, which is required to maintain pure water in the water tank 210 at a preset temperature, and the structure of the heating component will not be described in detail.

Optionally, the water supply mechanism 200 further includes a second heating assembly, where the second heating assembly includes a first heating unit and a second heating unit, the first heating unit is used to heat the anode plate of the PEM electrolyzer 10, the second heating unit is used to heat the cathode plate of the PEM electrolyzer 10, the temperature of the anode plate or the cathode plate exceeds the alarm temperature value, and the first heating unit and the second heating unit are closed at the same time, so that the internal temperature of the PEM electrolyzer 10 is prevented from being too high, and the safety of the test is ensured.

Alternatively, as shown in fig. 2, the first heating unit includes a first main circuit 320 and a first heating circuit 310, the first heating circuit 310 is connected to the first main circuit 320, the first heating circuit 310 is provided with a first contactor 311, and the first main circuit 320 is provided with a second contactor 411; the second heating unit comprises a second main circuit 420 and a second heating circuit 410, the second heating circuit 410 is connected with the second main circuit 420, the second heating circuit 410 is provided with a second contactor 411, and the second main circuit 420 is provided with a first contactor 311; the first contactor 311 is used for controlling the on-off of the first heating circuit 310 and the second main circuit 420, the second contactor 411 is used for controlling the on-off of the second heating circuit 410 and the first main circuit 320, the anode plate temperature exceeds the alarm temperature, the first contactor 311 is disconnected, the cathode plate temperature exceeds the alarm temperature, and the second contactor 411 is disconnected, so that the condition that the first heating circuit 310 and the second heating circuit 410 mutually prevent the temperature from flying is realized, the safety of testing is ensured, the condition of electrolytic reaction can be optimized, and the reaction speed and the reaction efficiency are improved.

Optionally, the first heating circuit 310 further includes a first thermal resistor 312, a first temperature control meter 313, and a first heating rod 314, where the first heating rod 314 is disposed on the anode plate, the first thermal resistor 312 is used for feeding back the temperature of the anode plate, the first temperature control meter 313 is connected with the first thermal resistor 312 in a communication manner, and the first temperature control meter 313 is used for adjusting the heating temperature of the first heating rod 314; the second heating circuit 410 further includes a second thermal resistor 412, a second temperature control meter 413, and a second heating rod 414, where the second heating rod 414 is disposed on the cathode plate, the second thermal resistor 412 is used for feeding back the temperature of the cathode plate, the second temperature control meter 413 is connected to the second thermal resistor 412 in a communication manner, and the second temperature control meter 413 is used for adjusting the heating temperature of the second heating rod 414. It will be appreciated that when the first thermal resistor 312 on the cathode side of the PEM electrolyzer 10 fails and the second heating rod 414 on the cathode side continues to operate, heat is transferred to the anode plate side with the pure water in the PEM electrolyzer 10, and on the anode plate side of the electrolyzer, the first thermal resistor 312 detects that the temperature of the anode plate exceeds the alarm temperature value, the first contactor 311 is closed and the first heating circuit 310 is opened, while the first contactor 311 in the second main circuit 420 on the cathode side is simultaneously closed and the second heating rod 414 on the cathode side ceases to operate.

Optionally, the multi-channel PEM pure water electrolysis hydrogen production testing device further comprises a plurality of hydrogen detection mechanisms, the hydrogen detection mechanisms are in one-to-one correspondence with the PEM electrolytic tank 10, each hydrogen detection mechanism comprises a hydrogen leakage alarm component, each hydrogen leakage alarm component is arranged above the PEM electrolytic tank 10 and is electrically connected with a hydrogen production power supply circuit, the hydrogen leakage unit cuts off the hydrogen production power supply circuit after detecting hydrogen leakage in the PEM electrolytic tank 10, explosion accidents are prevented, and safety of laboratory personnel is guaranteed.

Optionally, the hydrogen detection mechanism further includes a pulse exhaust assembly or a pneumatic check valve, and the pulse exhaust assembly or the pneumatic check valve is disposed on the hydrogen outlet pipe of the PEM electrolyzer 10, and the pulse exhaust assembly or the pneumatic check valve is used for preventing air from flowing backward into the hydrogen outlet pipe, so that the purity of hydrogen in the hydrogen outlet pipe is ensured, and the safety risk is reduced.

Alternatively, a sampler or a hydrogen in oxygen analyzer may be added to the hydrogen outlet, or a sampler or a hydrogen in oxygen analyzer may be added to the oxygen outlet, depending on the test requirements. The oxygen content in the hydrogen outlet can be monitored in real time by adding the sampler or the hydrogen in-hydrogen analyzer, and the hydrogen content in the oxygen outlet can be monitored by adding the sampler or the hydrogen in-oxygen analyzer in the oxygen outlet, thereby being beneficial to better controlling, monitoring and analyzing the electrolytic hydrogen production process.

Optionally, a back pressure valve 500 is disposed on the oxygen outlet pipe of the PEM electrolyzer 10, and the back pressure valve 500 is used to make the hydrogen pressure in the hydrogen outlet pipe reach the preset pressure. The back pressure valve 500 allows an operator to adjust the hydrogen pressure as needed to meet the requirements of a particular experiment, improving the controllability and flexibility of operation. And by controlling the pressure of the hydrogen, the device can optimize the electrolytic hydrogen production process to obtain higher yield and efficiency.

Optionally, the multi-channel PEM pure water electrolysis hydrogen production testing device further comprises a current transducer and a multi-channel data recorder, wherein a wire connected with the anode of the PEM electrolyzer 10 passes through the current transducer, the current transducer is in communication connection with the multi-channel data recorder, and the multi-channel data recorder is used for recording the current of the wire detected by the current transducer. The addition of the current transmitter and the multichannel data recorder enhances the data acquisition and analysis capability of the multichannel PEM pure water electrolytic hydrogen production testing device, and is beneficial to better understanding the electrolytic hydrogen production process and carrying out operation control and optimization.

Optionally, the multi-channel data logger also includes a plurality of voltage sensors, each two voltage sensing wires connected to the anode and cathode of the PEM electrolyzer 10, respectively, to detect the voltage between the anode and cathode of the PEM electrolyzer 10. By monitoring the voltage, operators can know the progress of the electrolytic reaction and adjust the reaction according to the needs, thereby being beneficial to controlling the reaction speed and efficiency. It should be noted that if the single-channel test is a small-sized pile, each battery can be sequentially connected with a plurality of inspection lines, the inspection lines are all connected with a multi-channel data recorder to monitor and record the voltage of the single-chip battery, and the test personnel can be helped to better analyze the performance of the single-chip battery through the recorded data.

Optionally, the multi-channel PEM pure water electrolysis hydrogen production testing device in this embodiment further includes an upper computer, and the upper computer is electrically connected with the water supply mechanism 200, the power supply mechanism and the multi-channel data recorder, so that an operator can remotely monitor and control the whole testing device through the upper computer, and the upper computer can collect data from multiple channels, including water supply, power supply and current data, and the data can be integrated and analyzed on the upper computer, thereby helping the operator to understand experimental results better.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Multichannel PEM pure water electrolysis hydrogen production testing arrangement, characterized in that includes:

The system comprises a rack (100), wherein a test table (110) is arranged on the rack (100), and a plurality of PEM electrolytic cells (10) are arranged on the test table (110);

-a power supply mechanism for powering a number of said PEM electrolysers (10);

-a plurality of water supply means (200), said water supply means (200) being in one-to-one correspondence with said PEM cells (10), each of said water supply means (200) being adapted to supply water individually to the PEM cell (10) to which it corresponds.

2. The multi-channel PEM pure water electrolysis hydrogen production test arrangement according to claim 1, wherein each of the water supply mechanisms (200) comprises a water tank (210) for storing pure water and a water supply pump assembly for communicating the water tank (210) with its corresponding PEM electrolyzer (10) and supplying the pure water to the PEM electrolyzer (10).

3. The multi-channel PEM pure water electrolysis hydrogen production test apparatus according to claim 2, wherein the water supply pump assembly comprises a peristaltic pump (220), a pure water supply pipe (230) and a pure water return pipe (240), one end of the pure water supply pipe (230) is connected with a water supply joint of the water tank (210), the other end is connected with a water inlet of the PEM electrolyzer (10), one end of the pure water return pipe (240) is connected with a water outlet of the PEM electrolyzer (10), the other end is connected with a water return joint of the water tank (210) to form a circulation path, and the peristaltic pump (220) is used for driving the pure water to flow in the circulation path.

4. A multi-channel PEM pure water electrolysis hydrogen production test device according to claim 3 wherein said water supply pump assembly further comprises a water valve and a mass flow meter, both disposed on a pure water supply pipe (230), said water valve and said mass flow meter being communicatively connected to an upper computer, said mass flow meter being adapted to monitor the mass flow of pure water in said pure water supply pipe (230), said upper computer being adapted to receive the mass flow signal of said mass flow meter and to send a control signal to said water valve to adjust the mass flow of pure water in said pure water supply pipe (230).

5. The multi-channel PEM pure water electrolysis hydrogen production test apparatus according to claim 2, wherein a water replenishment assembly is provided in the water tank (210), the water replenishment assembly comprises a water replenishment tank, a water replenishment pipe and a water replenishment valve, the water replenishment pipe is communicated with the water replenishment tank and the water tank (210), the water replenishment valve is arranged on the water replenishment pipe, the water replenishment valve is opened, and pure water in the water replenishment tank is replenished into the water tank (210) through the water replenishment pipe.

6. The multi-channel PEM pure water electrolysis hydrogen production test device according to claim 2, wherein said water supply mechanism (200) further comprises a first heating assembly for heating the pure water in said water tank (210) and maintaining said pure water at a preset temperature.

7. The multi-channel PEM pure water electrolysis hydrogen production test device according to claim 1, wherein the water supply mechanism (200) further comprises a second heating assembly comprising a first heating unit for heating the anode plate of the PEM electrolyzer (10) and a second heating unit for heating the cathode plate of the PEM electrolyzer (10), the temperature of either the anode plate or the cathode plate exceeding an alarm temperature value, the first heating unit and the second heating unit being turned off simultaneously.

8. The multi-channel PEM pure water electrolysis hydrogen production test device according to claim 7, wherein said first heating unit comprises a first main circuit (320) and a first heating circuit (310), said first heating circuit (310) being connected to said first main circuit (320), said first heating circuit (310) being provided with a first contactor (311), said first main circuit (320) being provided with a second contactor (411);

The second heating unit comprises a second main circuit (420) and a second heating circuit (410), the second heating circuit (410) is connected with the second main circuit (420), the second heating circuit (410) is provided with a second contactor (411), and the second main circuit (420) is provided with a first contactor (311);

The first contactor (311) is used for controlling the on-off of the first heating loop (310) and the second main loop (420), the second contactor (411) is used for controlling the on-off of the second heating loop (410) and the first main loop (320), the anode plate temperature exceeds the alarm temperature, the first contactor (311) is disconnected, the cathode plate temperature exceeds the alarm temperature, and the second contactor (411) is disconnected.

9. The multi-channel PEM pure water electrolysis hydrogen production test apparatus of claim 8 wherein said first heating circuit (310) further comprises a first thermal resistor (312), a first temperature control gauge (313), a first heating rod (314), said first heating rod (314) disposed on said anode plate, said first thermal resistor (312) for feeding back the temperature of said anode plate, said first temperature control gauge (313) in communication with said first thermal resistor (312), said first temperature control gauge (313) for adjusting the heating temperature of said first heating rod (314);

The second heating loop (410) further comprises a second thermal resistor (412), a second temperature control meter (413) and a second heating rod (414), the second heating rod (414) is arranged on the cathode plate, the second thermal resistor (412) is used for feeding back the temperature of the cathode plate, the second temperature control meter (413) is in communication connection with the second thermal resistor (412), and the second temperature control meter (413) is used for adjusting the heating temperature of the second heating rod (414).

10. The multi-channel PEM pure water electrolysis hydrogen production test device according to claim 1, further comprising a plurality of hydrogen detection mechanisms, wherein the hydrogen detection mechanisms are in one-to-one correspondence with the PEM electrolyzer (10), the hydrogen detection mechanisms comprise hydrogen leakage alarm components, the hydrogen leakage alarm components are arranged above the PEM electrolyzer (10), the hydrogen leakage alarm components are electrically connected with a hydrogen production power circuit, and the hydrogen leakage unit cuts off the hydrogen production power circuit after detecting hydrogen leakage in the PEM electrolyzer (10).

11. The multi-channel PEM pure water electrolysis hydrogen production test apparatus according to claim 10, wherein the hydrogen detection mechanism further comprises a pulse bleed assembly or a pneumatic check valve disposed on the hydrogen outlet line of the PEM electrolyzer (10), the pulse bleed assembly or the pneumatic check valve being used to prevent air from flowing backwards into the hydrogen outlet line.

12. The multi-channel PEM pure water electrolysis hydrogen production test device according to claim 1, further comprising a current transducer and a multi-channel data logger, wherein a wire connected to the anode of the PEM electrolyzer (10) passes through the current transducer, said current transducer being communicatively connected to the multi-channel data logger, said multi-channel data logger being adapted to log the current of said wire detected by said current transducer.

13. The multi-channel PEM pure water electrolysis hydrogen production test device according to claim 12, wherein said multi-channel data logger further comprises a plurality of voltage sensors, each two of said voltage sensing wires being connected to the anode and cathode of said PEM electrolyzer (10) respectively to detect the voltage between the anode and cathode of said PEM electrolyzer (10).