Dual-purpose electrolytic bath test system and multi-channel dual-purpose electrolytic bath test system

Abstract

The utility model discloses a dual-purpose electrolytic bath test system and a multichannel dual-purpose electrolytic bath test system, which are applied to the technical field of electrolytic baths, and are characterized in that a first outlet of a deionized water supply module is communicated with a first inlet of a deionized water supply module, and a second outlet is communicated with a first inlet of an alkaline solution supply module; a first inlet of the anode inlet control module is communicated with a first outlet of the deionized water supply module, a second inlet is communicated with a first outlet of the alkaline solution supply module, and an outlet is communicated with an anode inlet of the test electrolytic cell; the inlet of the cathode inlet control module is communicated with the outlet of the anode inlet control module, and the outlet is communicated with the cathode inlet of the test electrolytic cell. Through the alkaline solution supply module, the deionized water supply module and the anode inlet control module, deionized water or an alkaline solution is selectively filled into the test electrolytic cell, so that two test scenes of PEM electrolytic cell test and alkaline electrolytic cell test are realized, and the test cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic cells, in particular to a dual-purpose electrolytic cell testing system and a multi-channel dual-purpose electrolytic cell testing system. Background Art

[0002] At present, the mainstream electrolyzers include proton exchange membrane (PEM) electrolyzers and alkaline electrolyzers. PEM electrolyzers are electrolyzers that use proton exchange membranes as electrolytes, and alkaline electrolyzers are electrolyzers that use alkaline solutions as electrolytes. Both of these electrolyzers are the main equipment for water electrolysis to produce hydrogen. Among them, the performance test of the electrolyzer is a key link in water electrolysis to produce hydrogen. In the prior art, PEM electrolyzers and alkaline electrolyzers often require two different test systems for performance testing, which results in a high cost for the performance test of the electrolyzer. Utility Model Content

[0003] The utility model provides a dual-use electrolyzer test system and a multi-channel dual-use electrolyzer test system, which are used to solve the problem of high performance test cost of PEM electrolyzer and alkaline electrolyzer in the prior art. The technical solution provided by the utility model is as follows:

[0004] On the one hand, the utility model provides a dual-purpose electrolytic cell test system, including a deionized water supply module, an alkaline solution supply module, a deionized water supply module, an alkaline solution supply module, an anode inlet control module, a cathode inlet control module, an anode discharge module, a cathode discharge module and a DC power supply module;

[0005] The power supply interface of the DC power supply module is connected to the power supply interface of the test electrolytic cell; the DC power supply module is used to provide a DC power supply to the test electrolytic cell during the electrolytic cell test process;

[0006] The first outlet of the deionized water supply module is connected to the first inlet of the deionized water supply module, and the second outlet of the deionized water supply module is connected to the first inlet of the alkaline solution supply module; the deionized water supply module is used to supply deionized water to the deionized water supply module when the test electrolyzer is a PEM electrolyzer, and to supply deionized water to the alkaline solution supply module when the test electrolyzer is an alkaline electrolyzer;

[0007] The outlet of the alkaline solution replenishment module is connected to the second inlet of the alkaline solution supply module; the alkaline solution replenishment module is used to replenish the alkaline solution to the alkaline solution supply module when the test electrolytic cell is an alkaline electrolytic cell;

[0008] The first inlet of the anode inlet control module is communicated with the first outlet of the deionized water supply module, the second inlet of the anode inlet control module is communicated with the first outlet of the alkaline solution supply module, and the outlet of the anode inlet control module is communicated with the anode inlet of the test electrolytic cell; the anode inlet control module is used to connect the first outlet of the deionized water supply module with the anode inlet of the test electrolytic cell when the test electrolytic cell is a PEM electrolytic cell so that the deionized water in the deionized water supply module flows into the anode of the test electrolytic cell, and when the test electrolytic cell is an alkaline electrolytic cell, connect the first outlet of the alkaline solution supply module with the anode inlet of the test electrolytic cell so that the alkaline solution in the alkaline solution supply module flows into the anode of the test electrolytic cell;

[0009] The inlet of the cathode inlet control module is connected to the outlet of the anode inlet control module, and the outlet of the cathode inlet control module is connected to the cathode inlet of the test electrolytic cell; the cathode inlet control module is used to connect the outlet of the anode inlet control module and the cathode inlet of the test electrolytic cell when the test electrolytic cell is an alkaline electrolytic cell, so that the alkaline solution in the alkaline solution supply module flows into the cathode of the test electrolytic cell via the cathode inlet control module;

[0010] The inlet of the anode discharge module is connected to the anode outlet of the test electrolytic cell; the anode discharge module is used to discharge the oxygen generated by the anode of the test electrolytic cell during the electrolytic cell test;

[0011] The inlet of the cathode emission module is connected to the cathode outlet of the test electrolyzer; the cathode emission module is used to discharge the hydrogen generated by the cathode of the test electrolyzer during the electrolyzer test process.

[0012] In one possible implementation, the cathode exhaust module includes a cathode exhaust and drainage module, a first alkaline solution recovery module, a hydrogen exhaust pipeline, and a cathode drainage pipeline;

[0013] The inlet of the cathode exhaust and drainage module is connected to the cathode outlet of the test electrolyzer, the first outlet of the cathode exhaust and drainage module is connected to the hydrogen exhaust pipeline, the second outlet of the cathode exhaust and drainage module is connected to the cathode drainage pipeline, and the third outlet of the cathode exhaust and drainage module is connected to the inlet of the first alkaline solution recovery module; the cathode exhaust and drainage module is used to separate the hydrogen and water vapor discharged from the cathode outlet of the test electrolyzer into gas and liquid, and discharge them to the hydrogen exhaust pipeline and the cathode drainage pipeline respectively when the test electrolyzer is a PEM electrolyzer, and to separate the hydrogen and unreacted alkaline solution discharged from the cathode outlet of the test electrolyzer into gas and liquid, and discharge them to the hydrogen exhaust pipeline and the first alkaline solution recovery module respectively when the test electrolyzer is an alkaline electrolyzer;

[0014] The outlet of the first alkaline solution recovery module is connected to the third inlet of the alkaline solution supply module; the first alkaline solution recovery module is used to return the unreacted alkaline solution discharged from the third outlet of the cathode exhaust and drainage module to the alkaline solution supply module when the test electrolytic cell is an alkaline electrolytic cell.

[0015] In one possible implementation, the anode emission module includes a first anode emission control module, a second anode emission control module, an anode exhaust drainage module, a second alkaline solution recovery module, an oxygen exhaust pipeline, and an anode drainage pipeline;

[0016] The inlet of the first anode emission control module is communicated with the anode outlet of the test electrolyzer, the first outlet of the first anode emission control module is communicated with the second inlet of the deionized water supply module, and the second outlet of the first anode emission control module is communicated with the first inlet of the anode exhaust drainage module; the first anode emission control module is used to connect the anode outlet of the test electrolyzer with the second inlet of the deionized water supply module when the test electrolyzer is a PEM electrolyzer so that the oxygen and unreacted deionized water discharged from the anode outlet of the test electrolyzer flow back to the deionized water supply module, and when the test electrolyzer is an alkaline electrolyzer, connect the anode outlet of the test electrolyzer with the first inlet of the anode exhaust drainage module so that the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer are discharged to the anode exhaust drainage module;

[0017] The inlet of the second anode emission control module is communicated with the second outlet of the deionized water supply module, and the outlet of the second anode emission control module is communicated with the second inlet of the anode exhaust drainage module; the second anode emission control module is used to connect the second outlet of the deionized water supply module and the second inlet of the anode exhaust drainage module when the test electrolyzer is a PEM electrolyzer, so that oxygen and water vapor in the deionized water supply module are discharged to the anode exhaust drainage module;

[0018] The first outlet of the anode exhaust and drainage module is connected to the oxygen exhaust pipeline, the second outlet of the anode exhaust and drainage module is connected to the anode drainage pipeline, and the third outlet of the anode exhaust and drainage module is connected to the inlet of the second alkaline solution recovery module; the anode exhaust and drainage module is used to separate the oxygen and water vapor in the deionized water supply module discharged from the outlet of the second anode emission control module from gas and liquid, and discharge them to the oxygen exhaust pipeline and the anode drainage pipeline respectively when the test electrolyzer is a PEM electrolyzer, and when the test electrolyzer is an alkaline electrolyzer, separate the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer from gas and liquid, and discharge them to the oxygen exhaust pipeline and the second alkaline solution recovery module respectively;

[0019] The outlet of the second alkaline solution recovery module is connected to the third inlet of the alkaline solution supply module; the second alkaline solution recovery module is used to return the unreacted alkaline solution discharged from the second outlet of the anode exhaust and drainage module to the alkaline solution supply module when the test electrolytic cell is an alkaline electrolytic cell.

[0020] In one possible implementation, the first anode emission control module includes a first three-way valve;

[0021] The inlet of the first three-way valve is connected to the anode outlet of the test electrolyzer, the first outlet of the first three-way valve is connected to the second inlet of the deionized water supply module, and the second outlet of the first three-way valve is connected to the first inlet of the anode exhaust and drainage module; the first three-way valve is used to connect the anode outlet of the test electrolyzer and the second inlet of the deionized water supply module when the test electrolyzer is a PEM electrolyzer so that the oxygen and unreacted deionized water discharged from the anode outlet of the test electrolyzer can flow back to the deionized water supply module, and when the test electrolyzer is an alkaline electrolyzer, connect the anode outlet of the test electrolyzer and the first inlet of the anode exhaust and drainage module so that the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer can be discharged to the anode exhaust and drainage module.

[0022] In a possible implementation, the deionized water supply module includes a water tank and a water pump;

[0023] The first inlet of the water tank is communicated with the first outlet of the deionized water supply module, the first outlet of the water tank is communicated with the inlet of the water pump, the second inlet of the water tank is communicated with the first outlet of the first anode emission control module, and the second outlet of the water tank is communicated with the inlet of the second anode emission control module; the water tank is used to receive and store the deionized water supplied by the deionized water supply module and the unreacted deionized water discharged from the anode outlet of the test electrolyzer during the electrolyzer test when the test electrolyzer is a PEM electrolyzer;

[0024] The outlet of the water pump is connected to the first inlet of the anode inlet control module; the water pump is used to extract deionized water from the water tank and output it to the anode inlet control module when the test electrolyzer is a PEM electrolyzer.

[0025] In a possible implementation, the alkaline solution supply module includes an alkaline solution tank and an alkaline solution pump;

[0026] The first inlet of the alkaline solution tank is connected to the second outlet of the deionized water replenishment module, the second inlet of the alkaline solution tank is connected to the outlet of the alkaline solution replenishment module, the third inlet of the alkaline solution tank is connected to the outlet of the first alkaline solution recovery module and the outlet of the second alkaline solution recovery module respectively, and the first outlet of the alkaline solution tank is connected to the inlet of the alkaline solution pump; the alkaline solution tank is used to receive and store the deionized water replenished by the deionized water replenishment module and the alkaline solution replenished by the alkaline solution replenishment module when the test electrolyzer is an alkaline electrolyzer, as well as the unreacted alkaline solution discharged from the anode outlet of the test electrolyzer recovered by the second alkaline solution recovery module during the electrolyzer test and the unreacted alkaline solution discharged from the cathode outlet of the test electrolyzer recovered by the first alkaline solution recovery module;

[0027] The outlet of the alkaline solution pump is connected to the second inlet of the anode inlet control module; the alkaline solution pump is used to extract alkaline solution from the alkaline solution tank and output it to the anode inlet control module when the test electrolytic cell is an alkaline electrolytic cell.

[0028] In one possible implementation, the anode inlet control module includes a second three-way valve;

[0029] The first inlet of the second three-way valve is connected to the first outlet of the deionized water supply module, the second inlet of the second three-way valve is connected to the first outlet of the alkaline solution supply module, and the outlet of the second three-way valve is connected to the anode inlet of the test electrolyzer; the second three-way valve is used to connect the first outlet of the deionized water supply module and the anode inlet of the test electrolyzer when the test electrolyzer is a PEM electrolyzer so that the deionized water in the deionized water supply module flows into the anode of the test electrolyzer, and when the test electrolyzer is an alkaline electrolyzer, connect the first outlet of the alkaline solution supply module and the anode inlet of the test electrolyzer so that the alkaline solution in the alkaline solution supply module flows into the anode of the test electrolyzer.

[0030] In one possible implementation, the cathode inlet control module includes a first valve;

[0031] The inlet of the first valve is connected to the outlet of the anode inlet control module, and the outlet of the first valve is connected to the cathode inlet of the test electrolytic cell; the first valve is used to open when the test electrolytic cell is an alkaline electrolytic cell, so that the alkaline solution in the alkaline solution supply module flows into the cathode of the test electrolytic cell via the anode inlet control module.

[0032] In a possible implementation, the deionized water supply module includes a second valve and a third valve;

[0033] The inlet of the second valve is connected to the deionized water supply pipeline, and the outlet of the second valve is connected to the first inlet of the deionized water supply module; the second valve is used to open when the test electrolyzer is a PEM electrolyzer to supply deionized water to the deionized water supply module;

[0034] The inlet of the third valve is connected to the deionized water supply pipeline, and the outlet of the third valve is connected to the first inlet of the alkaline solution supply module; the third valve is used to open when the test electrolytic cell is an alkaline electrolytic cell to supply deionized water to the alkaline solution supply module.

[0035] On the other hand, the utility model provides a multi-channel dual-use electrolytic cell testing system, comprising at least two of the above-mentioned dual-use electrolytic cell testing systems connected in parallel; wherein the deionized water supply modules of each dual-use electrolytic cell testing system are connected in parallel and the alkaline solution supply modules of each dual-use electrolytic cell testing system are connected in parallel.

[0036] The beneficial effects of the utility model are as follows:

[0037] In the utility model, the dual-use electrolyzer test system connects the outlet with the first inlet or the outlet with the second inlet through the anode inlet control module, and realizes the selective filling of deionized water or alkaline solution into the test electrolyzer, thereby realizing the use of a dual-use electrolyzer test system to perform two test scenarios of PEM electrolyzer test and alkaline electrolyzer test, thereby realizing one machine for multiple uses and reducing the test costs of PEM electrolyzer and alkaline electrolyzer. Moreover, the multi-channel dual-use electrolyzer test system performs performance tests on different electrolyzers through each dual-use electrolyzer test system connected in parallel, realizing simultaneous testing of multiple electrolyzers, thereby improving the test efficiency of the electrolyzer.

[0038] Other features and advantages of the utility model will be described in the subsequent description, and partly will become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0040] Figure 1 A schematic diagram of the structure of a dual-purpose electrolytic cell testing system in an embodiment of the utility model;

[0041] Figure 2 Another structural schematic diagram of the dual-purpose electrolytic cell testing system in the embodiment of the utility model;

[0042] Figure 3 It is a structural schematic diagram of a multi-channel dual-purpose electrolytic cell testing system in an embodiment of the utility model.

[0043] In the icon, 10-deionized water supply module; 11-second valve; 12-third valve; 13-deionized water supply pipeline; 20-alkaline solution supply module; 21-fourth valve; 22-alkaline solution supply pipeline; 30-deionized water supply module; 31-water tank; 32-water pump; 33-deionized water supply pipeline; 40-alkaline solution supply module; 41-alkaline solution tank; 42-alkaline solution pump; 43-alkaline solution supply pipeline; 50-anode inlet control module, a 50 - the first inlet of the anode inlet control module, b 50 - Second inlet of the anode inlet control module, c 50 - outlet of anode inlet control module; 51 - second three-way valve, a 51 - the first inlet of the anode inlet control module, b 51 - Second inlet of the anode inlet control module, c 51 - outlet of anode inlet control module; 52-anode inlet pipeline; 60-cathode inlet control module; 61-first valve; 62-cathode inlet pipeline; 70-anode emission module; 71-first anode emission control module, a 71 - inlet of the first anode emission control module, b 71 - a first outlet of the first anode emission control module, c 71 - the second outlet of the first anode emission control module; 711 - the first three-way valve, a 711 - inlet of the first three-way valve, b 711 - the first outlet of the first three-way valve, c 711 - the second outlet of the first three-way valve; 712 - deionized water recovery pipeline; 72 - the second anode emission control module, a 72 - inlet of the second anode emission control module, b 72 - outlet of the second anode emission control module; 721- seventh valve; 73- anode exhaust and drainage module; 731- anode gas-liquid separator; 732- eighth valve; 74- second alkaline solution recovery module, a 74 - the inlet of the second alkaline solution recovery module, b 74 - outlet of the second alkaline solution recovery module; 741- the ninth valve; 742- the second alkaline solution recovery pipeline; 75- oxygen exhaust pipeline; 76- anode drainage pipeline; 77- water tank exhaust pipeline; 78- anode outlet pipeline; 80- cathode emission module; 81- cathode exhaust and drainage module; 811- cathode gas-liquid separator; 812- the fifth valve; 82- the first alkaline solution recovery module, a 82 - the inlet of the first alkaline solution recovery module, b 82- the outlet of the first alkaline solution recovery module; 821- the sixth valve; 822- the first alkaline solution recovery pipeline; 83- the hydrogen exhaust pipeline; 84- the cathode drainage pipeline; 85- the cathode outlet pipeline; 90- the DC power supply module; 91- the DC power supply; 92- the negative power line interface; 93- the positive power line interface; 100- the deionized water monitoring and emission module; 101- the first liquid level sensor, 102- the conductivity meter; 103- the tenth valve; 104- the deionized water discharge pipeline; 110- the alkaline solution monitoring and emission module; 111- the second liquid level sensor; 112- the density meter; 113- the eleventh valve; 114- the alkaline solution discharge pipeline; 120- the deionized water safety control module; 121- the twelfth valve; 122- the first pressure sensor; 130- the alkaline solution safety control module; 131- the thirteenth valve; 132- the second pressure sensor. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] Mainstream electrolyzers include PEM electrolyzers and alkaline electrolyzers. Among them, PEM electrolyzers use proton exchange membranes as electrolytes. After deionized water is introduced into the anode of the PEM electrolyzer, under the action of direct current, the deionized water is decomposed into oxygen, electrons and protons at the anode of the PEM electrolyzer. Oxygen is discharged from the anode of the PEM electrolyzer, protons flow to the cathode of the PEM electrolyzer through the proton exchange membrane, and electrons flow to the cathode of the PEM electrolyzer through an external circuit. Protons and electrons combine to generate hydrogen on the cathode side of the PEM electrolyzer; alkaline electrolyzers use alkaline solutions as electrolytes, such as 30% potassium hydroxide solution as electrolytes. After alkaline solutions are introduced into the anode and cathode of the alkaline electrolyzer respectively, under the action of direct current, water undergoes a reduction reaction at the cathode of the alkaline electrolyzer to generate hydrogen and hydroxide ions. The hydroxide ions pass through the diaphragm material under the action of the electric field to reach the anode of the alkaline electrolyzer and lose electrons to generate oxygen and water.

[0046] Both of the above-mentioned two electrolyzers can realize hydrogen production by water electrolysis, and the performance test of the electrolyzer is the key link of hydrogen production by water electrolysis. There are two traditional electrolyzer testing schemes. One testing scheme is to use different testing systems to test PEM electrolyzers and alkaline electrolyzers respectively. The PEM electrolyzer testing system and the alkaline electrolyzer testing system are not compatible with each other, which leads to high testing costs for the electrolyzers. The other testing scheme is to use a set of universal testing systems to test PEM electrolyzers and alkaline electrolyzers, that is, the PEM electrolyzer test and the alkaline electrolyzer test share all components such as tanks, pipelines, and parts in the universal testing system. This universal testing system When switching the test electrolyzer, in order to avoid the mutual influence between the PEM electrolyzer test and the alkaline electrolyzer test, such as avoiding the influence of the alkaline solution residual in the alkaline electrolyzer test on the purity of the deionized water used in the PEM electrolyzer test, and avoiding the influence of the deionized water residual in the PEM electrolyzer test on the concentration of the alkaline solution used in the alkaline electrolyzer test, etc., the tank, pipeline, parts and other related components in the general test system need to be fully flushed before switching the test electrolyzer to perform different types of electrolyzer tests. This results in a long and complex electrolyzer switching operation, which affects the efficiency of the electrolyzer test.

[0047] To this end, the present invention provides an electrolytic cell testing system. Figure 1 As shown, the dual-purpose electrolytic cell test system provided by the utility model at least includes a deionized water supply module 10, an alkaline solution supply module 20, a deionized water supply module 30, an alkaline solution supply module 40, an anode inlet control module 50, a cathode inlet control module 60, an anode discharge module 70, a cathode discharge module 80 and a DC power supply module 90;

[0048] The power supply interface of the DC power supply module 90 is connected to the power supply interface of the test electrolytic cell; the DC power supply module 90 is used to provide a DC power supply to the test electrolytic cell during the electrolytic cell test process;

[0049] The first outlet of the deionized water supply module 10 is communicated with the first inlet of the deionized water supply module 30, and the second outlet of the deionized water supply module 10 is communicated with the first inlet of the alkaline solution supply module 40; the deionized water supply module 10 is used to supply deionized water to the deionized water supply module 30 when the test electrolyzer is a PEM electrolyzer, and to supply deionized water to the alkaline solution supply module 40 when the test electrolyzer is an alkaline electrolyzer;

[0050] The outlet of the alkaline solution supply module 20 is connected to the second inlet of the alkaline solution supply module 40; the alkaline solution supply module 20 is used to supply alkaline solution to the alkaline solution supply module 40 when the test electrolytic cell is an alkaline electrolytic cell;

[0051] The first inlet of the anode inlet control module 50 is communicated with the first outlet of the deionized water supply module 30, the second inlet of the anode inlet control module 50 is communicated with the first outlet of the alkaline solution supply module 40, and the outlet of the anode inlet control module 50 is communicated with the anode inlet of the test electrolytic cell through a detachable anode inlet pipeline 52; the anode inlet control module 50 is used to connect the first outlet of the deionized water supply module 30 with the anode inlet of the test electrolytic cell when the test electrolytic cell is a PEM electrolytic cell so that the deionized water in the deionized water supply module 30 flows into the anode of the test electrolytic cell, and when the test electrolytic cell is an alkaline electrolytic cell, connect the first outlet of the alkaline solution supply module 40 with the anode inlet of the test electrolytic cell so that the alkaline solution in the alkaline solution supply module 40 flows into the anode of the test electrolytic cell;

[0052] The inlet of the cathode inlet control module 60 is connected to the outlet of the anode inlet control module 50, and the outlet of the cathode inlet control module 60 is connected to the cathode inlet of the test electrolytic cell; when the test electrolytic cell is an alkaline electrolytic cell, the cathode inlet control module 60 is used to connect the outlet of the anode inlet control module 50 and the cathode inlet of the test electrolytic cell so that the alkaline solution in the alkaline solution supply module 40 flows into the cathode of the test electrolytic cell via the cathode inlet control module 60;

[0053] The inlet of the anode discharge module 70 is connected to the anode outlet of the test electrolytic cell; the anode discharge module 70 is used to discharge the oxygen generated by the anode of the test electrolytic cell during the electrolytic cell test;

[0054] The inlet of the cathode discharge module 80 is connected to the cathode outlet of the test electrolyzer; the cathode discharge module 80 is used to discharge the hydrogen generated by the cathode of the test electrolyzer during the electrolyzer test process.

[0055] In an embodiment of the utility model, before testing a test electrolytic cell such as a PEM electrolytic cell or an alkaline electrolytic cell, the power interface of the test electrolytic cell can be connected to the power supply interface of the DC power supply module 90; in addition, the anode inlet of the test electrolytic cell can be connected to the outlet of the anode inlet control module 50, the cathode inlet of the test electrolytic cell can be connected to the outlet of the cathode inlet control module 60, and the anode outlet of the test electrolytic cell can be connected to the inlet of the anode emission module 70, and the cathode outlet of the test electrolytic cell can be connected to the inlet of the cathode emission module 80, thereby completing the connection between the test electrolytic cell and the dual-use electrolytic cell test system.

[0056] If the test electrolyzer is a PEM electrolyzer, when the test electrolyzer is tested by the dual-use electrolyzer test system, the deionized water supply module 10 supplies deionized water to the deionized water supply module 30, the alkaline solution supply module 20 remains closed, and the anode inlet control module 50 is connected to the first inlet a 50Instead of exporting 50 The first outlet of the deionized water supply module 30 is connected to the anode inlet of the test electrolyzer, so that the deionized water in the deionized water supply module 30 flows into the anode of the test electrolyzer. The DC power supply module 90 provides a DC power supply to the test electrolyzer so that the test electrolyzer starts to electrolyze water to produce hydrogen. During the process of electrolyzing water to produce hydrogen in the test electrolyzer, the oxygen generated by the anode of the test electrolyzer is discharged through the anode emission module 70, and the hydrogen generated by the cathode of the test electrolyzer is discharged through the cathode emission module 80. Therefore, the performance test result of the test electrolyzer can be determined based on the oxygen discharged by the anode emission module 70 and the hydrogen discharged by the cathode emission module 80, and then the performance test of the test electrolyzer can be completed.

[0057] If the test electrolytic cell is an alkaline electrolytic cell, when the test electrolytic cell is tested by the dual-use electrolytic cell testing system, the deionized water supply module 10 supplies deionized water to the alkaline solution supply module 40, and the alkaline solution supply module 20 supplies alkaline solution to the alkaline solution supply module 40. The anode inlet control module 50 controls the anode inlet by connecting its second inlet b 50 Instead of exporting 50 To connect the first outlet of the alkaline solution supply module 40 and the anode inlet of the test electrolyzer, so that the alkaline solution in the alkaline solution supply module 40 flows into the anode of the test electrolyzer and at the same time flows into the cathode of the test electrolyzer through the cathode inlet control module 60. The DC power supply module 90 provides a DC power supply to the test electrolyzer so that the test electrolyzer starts to electrolyze water to produce hydrogen. During the process of electrolyzing water to produce hydrogen in the test electrolyzer, the oxygen generated by the anode of the test electrolyzer is discharged through the anode emission module 70, and the hydrogen generated by the cathode of the test electrolyzer is discharged through the cathode emission module 80. Therefore, the performance test result of the test electrolyzer can be determined based on the oxygen discharged by the anode emission module 70 and the hydrogen discharged by the cathode emission module 80, and then the performance test of the test electrolyzer can be completed.

[0058] In this way, the dual-use electrolyzer test system connects the first outlet of the deionized water supply module 30 with the anode inlet of the test electrolyzer or connects the first outlet of the alkaline solution supply module 40 with the anode inlet of the test electrolyzer through the anode inlet control module 50, thereby realizing the selective filling of deionized water or alkaline solution into the test electrolyzer, thereby realizing the two test scenarios of PEM electrolyzer testing and alkaline electrolyzer testing using a dual-use electrolyzer test system, thereby realizing multiple uses of one machine and reducing the testing costs of PEM electrolyzers and alkaline electrolyzers.

[0059] In addition, the dual-use electrolyzer test system has two supply modules, namely, a deionized water supply module 30 and an alkaline solution supply module 40, that is, the deionized water supply and the alkaline solution supply are separated from each other, which can effectively avoid the mutual influence between the PEM electrolyzer test and the alkaline electrolyzer test. Moreover, the outlet of the anode inlet control module 50 is connected to the anode inlet of the test electrolyzer through a detachable anode inlet pipeline 52. When switching between test electrolyzers such as PEM electrolyzers or alkaline electrolyzers to perform different types of electrolyzer tests, the mutual influence between the PEM electrolyzer test and the alkaline electrolyzer test can be avoided by flushing or replacing the anode inlet pipeline 52 between the outlet of the anode inlet control module 50 and the anode inlet of the test electrolyzer. The flushing or replacement operation is simple and efficient, thereby effectively solving the problem of low efficiency and long time consumption in the traditional general test system when switching the test electrolyzer, that is, the tank, pipeline, parts and other related components in the general test system need to be fully flushed, while ensuring the accuracy of the PEM electrolyzer test and the alkaline electrolyzer test.

[0060] In one possible implementation, see Figure 2 As shown, the anode inlet control module 50 includes a second three-way valve 51;

[0061] The first inlet of the second three-way valve 51 is connected to the first outlet of the deionized water supply module 30, the second inlet of the second three-way valve 51 is connected to the first outlet of the alkaline solution supply module 40, and the outlet of the second three-way valve 51 is connected to the anode inlet of the test electrolytic cell; the second three-way valve 51 is used to connect the first outlet of the deionized water supply module 30 and the anode inlet of the test electrolytic cell when the test electrolytic cell is a PEM electrolytic cell so that the deionized water in the deionized water supply module 30 flows into the anode of the test electrolytic cell, and when the test electrolytic cell is an alkaline electrolytic cell, connect the first outlet of the alkaline solution supply module 40 and the anode inlet of the test electrolytic cell so that the alkaline solution in the alkaline solution supply module 40 flows into the anode of the test electrolytic cell.

[0062] In the embodiment of the utility model, if the test electrolyzer is a PEM electrolyzer, when the test electrolyzer is tested by the dual-use electrolyzer test system, the first inlet a of the test electrolyzer is connected through the second three-way valve 51. 51 Instead of exporting 51 The first outlet of the deionized water supply module 30 is connected to the anode inlet of the test electrolyzer, so that the deionized water in the deionized water supply module 30 can flow into the anode of the test electrolyzer to perform water electrolysis and hydrogen production; if the test electrolyzer is an alkaline electrolyzer, when the test electrolyzer is tested by the dual-use electrolyzer test system, the second inlet b is connected through the second three-way valve 51. 51 Instead of exporting 51The first outlet of the alkaline solution supply module 40 is connected to the anode inlet of the test electrolytic cell, so that the alkaline solution in the alkaline solution supply module 40 flows into the anode of the test electrolytic cell and flows into the cathode of the test electrolytic cell through the cathode inlet control module 60 to perform water electrolysis and hydrogen production. 51 Instead of exporting 51 Or connect the second import b 51 Instead of exporting 51 , it is possible to selectively fill the test electrolyzer with deionized water or alkaline solution, thereby realizing the use of a dual-use electrolyzer test system to perform two test scenarios: PEM electrolyzer testing and alkaline electrolyzer testing, thereby achieving multiple uses of one machine and reducing the testing costs of PEM electrolyzers and alkaline electrolyzers.

[0063] In one possible implementation, see Figure 2 As shown, the cathode inlet control module 60 includes a first valve 61;

[0064] The inlet of the first valve 61 is connected to the outlet of the anode inlet control module 50, and the outlet of the first valve 61 is connected to the cathode inlet of the test electrolytic cell; the first valve 61 is used to open when the test electrolytic cell is an alkaline electrolytic cell, so that the alkaline solution in the alkaline solution supply module 40 flows into the cathode of the test electrolytic cell via the anode inlet control module 50.

[0065] In the embodiment of the utility model, the first valve 61 can be a manual valve or an electric valve. The first valve 61 can be used to control the supply of the alkaline solution in the cathode of the test electrolytic cell. For example, if the test electrolytic cell is an alkaline electrolytic cell, when the first valve 61 is opened, the alkaline solution starts to be supplied to the cathode of the test electrolytic cell, and when the first valve 61 is closed, the alkaline solution stops being supplied to the cathode of the test electrolytic cell, thereby improving the controllability of the electrolytic cell test.

[0066] In one possible implementation, see Figure 2 As shown, the deionized water supply module 10 includes a second valve 11 and a third valve 12;

[0067] The inlet of the second valve 11 is connected to the deionized water supply pipeline 13, and the outlet of the second valve 11 is connected to the first inlet of the deionized water supply module 30; the second valve 11 is used to open when the test electrolyzer is a PEM electrolyzer to supply deionized water to the deionized water supply module 30;

[0068] The inlet of the third valve 12 is connected to the deionized water supply pipeline 13, and the outlet of the third valve 12 is connected to the first inlet of the alkaline solution supply module 40; the third valve 12 is used to open when the test electrolytic cell is an alkaline electrolytic cell to supply deionized water to the alkaline solution supply module 40.

[0069] In the embodiment of the utility model, the second valve 11 and the third valve 12 can be manual valves or electric valves. The second valve 11 and the third valve 12 can realize the supply control of the deionized water in the deionized water supply module 30 and the alkaline solution supply module 40. For example, when the test electrolyzer is a PEM electrolyzer, the second valve 11 is opened and the third valve 12 is closed to supply deionized water to the deionized water supply module 30. When the test electrolyzer is an alkaline electrolyzer, the third valve 12 is opened and the second valve 11 is closed to supply deionized water to the alkaline solution supply module 40, thereby further improving the controllability of the electrolyzer test.

[0070] In one possible implementation, see Figure 2 As shown, the alkaline solution supply module 20 includes a fourth valve 21;

[0071] The inlet of the fourth valve 21 is connected to the alkaline solution supply pipeline 22, and the outlet of the fourth valve 21 is connected to the second inlet of the alkaline solution supply module 40; the fourth valve 21 is used to open when the test electrolytic cell is an alkaline electrolytic cell to supply alkaline solution to the alkaline solution supply module 40.

[0072] In the embodiment of the utility model, the fourth valve 21 can be a manual valve or an electric valve. The fourth valve 21 can be used to control the supply of the alkaline solution in the alkaline solution supply module 40. For example, when the test electrolyzer is a PEM electrolyzer, the fourth valve 21 is closed to stop supplying the alkaline solution to the alkaline solution supply module 40. When the test electrolyzer is an alkaline electrolyzer, the fourth valve 21 is opened to start supplying the alkaline solution to the alkaline solution supply module 40, thereby further improving the controllability of the electrolyzer test.

[0073] In one possible implementation, see Figure 2 As shown, the cathode exhaust module 80 includes a cathode exhaust and drainage module 81, a hydrogen exhaust pipeline 83 and a cathode drainage pipeline 84;

[0074] The inlet of the cathode exhaust and drainage module 81 is connected to the cathode outlet of the test electrolyzer, the first outlet of the cathode exhaust and drainage module 81 is connected to the hydrogen exhaust pipeline 83, and the second outlet of the cathode exhaust and drainage module 81 is connected to the cathode drainage pipeline 84; the cathode exhaust and drainage module 81 is used to separate the hydrogen and water vapor discharged from the cathode outlet of the test electrolyzer into gas-liquid state and discharge them to the hydrogen exhaust pipeline 83 and the cathode drainage pipeline 84 respectively when the test electrolyzer is a PEM electrolyzer, and to separate the hydrogen and water vapor discharged from the cathode outlet of the test electrolyzer into gas-liquid state and discharge them to the hydrogen exhaust pipeline 83 and the cathode drainage pipeline 84 respectively when the test electrolyzer is an alkaline electrolyzer.

[0075] In the embodiment of the utility model, when the test electrolyzer is a PEM electrolyzer, after the hydrogen and water vapor discharged from the cathode outlet of the test electrolyzer are separated into gas and liquid through the cathode exhaust and drainage module 81, the hydrogen is discharged through the hydrogen exhaust pipeline 83 connected to the first outlet of the cathode exhaust and drainage module 81, and the condensed water is discharged through the cathode drainage pipeline 84 connected to the second outlet of the cathode exhaust and drainage module 81; when the test electrolyzer is an alkaline electrolyzer, after the hydrogen and unreacted alkaline solution discharged from the cathode outlet of the test electrolyzer are separated into gas and liquid through the cathode exhaust and drainage module 81, the hydrogen is discharged through the hydrogen exhaust pipeline 83 connected to the first outlet of the cathode exhaust and drainage module 81, and the unreacted alkaline solution is discharged through the cathode drainage pipeline 84 connected to the second outlet of the cathode exhaust and drainage module 81. In this way, whether in the test of the PEM electrolyzer or the test of the alkaline electrolyzer, the cathode exhaust and drainage module 81 can realize the accurate extraction of hydrogen, thereby improving the accuracy of the performance test results of the test electrolyzer determined based on hydrogen.

[0076] In another possible implementation, see Figure 2 As shown, the cathode exhaust module 80 includes a cathode exhaust and drainage module 81, a first alkaline solution recovery module 82, a hydrogen exhaust pipeline 83 and a cathode drainage pipeline 84;

[0077] The inlet of the cathode exhaust and drainage module 81 is connected to the cathode outlet of the test electrolyzer, the first outlet of the cathode exhaust and drainage module 81 is connected to the hydrogen exhaust pipeline 83, the second outlet of the cathode exhaust and drainage module 81 is connected to the cathode drainage pipeline 84, and the third outlet of the cathode exhaust and drainage module 81 is connected to the inlet of the first alkaline solution recovery module 82; the cathode exhaust and drainage module 81 is used to separate the hydrogen and water vapor discharged from the cathode outlet of the test electrolyzer into gas and liquid, and discharge them to the hydrogen exhaust pipeline 83 and the cathode drainage pipeline 84 respectively when the test electrolyzer is a PEM electrolyzer; when the test electrolyzer is an alkaline electrolyzer, the hydrogen and unreacted alkaline solution discharged from the cathode outlet of the test electrolyzer are separated into gas and liquid, and discharged to the hydrogen exhaust pipeline 83 and the first alkaline solution recovery module 82 respectively;

[0078] The outlet of the first alkaline solution recovery module 82 is connected to the third inlet of the alkaline solution supply module 40; the first alkaline solution recovery module 82 is used to return the unreacted alkaline solution discharged from the third outlet of the cathode exhaust and drainage module 81 to the alkaline solution supply module 40 when the test electrolytic cell is an alkaline electrolytic cell.

[0079] In the embodiment of the utility model, when the test electrolyzer is a PEM electrolyzer, the hydrogen and water vapor discharged from the cathode outlet of the test electrolyzer are separated into gas and liquid through the cathode exhaust and drainage module 81, and the hydrogen is discharged through the hydrogen exhaust pipeline 83 connected to the first outlet of the cathode exhaust and drainage module 81, and the condensed water is discharged through the cathode drainage pipeline 84 connected to the second outlet of the cathode exhaust and drainage module 81. When the test electrolyzer is an alkaline electrolyzer, the first alkaline solution recovery module 82 is connected to the inlet a 82 With its export b 82 , to connect the third outlet of the cathode exhaust and drainage module 81 and the third inlet of the alkaline solution supply module 40, so that the hydrogen gas and the unreacted alkaline solution discharged from the cathode outlet of the test electrolyzer are separated into gas and liquid through the cathode exhaust and drainage module 81, and the hydrogen gas is discharged through the hydrogen exhaust pipeline 83 connected to the first outlet of the cathode exhaust and drainage module 81, and the unreacted alkaline solution is refluxed to the alkaline solution supply module 40 through the first alkaline solution recovery module 82 connected to the third outlet of the cathode exhaust and drainage module 81. In this way, when the test electrolyzer is an alkaline electrolyzer, the alkaline solution can be recycled and used through the first alkaline solution recovery module 82, thereby further reducing the test cost of the electrolyzer.

[0080] In one possible implementation, see Figure 2 As shown, the cathode exhaust and drainage module 81 includes a cathode gas-liquid separator 811 and a fifth valve 812; the first alkaline solution recovery module 82 includes a sixth valve 821;

[0081] The inlet of the cathode gas-liquid separator 811 is connected to the cathode outlet of the test electrolyzer, the first outlet of the cathode gas-liquid separator 811 is connected to the hydrogen exhaust pipeline 83, and the second outlet of the cathode gas-liquid separator 811 is respectively connected to the inlet of the fifth valve 812 and the inlet of the sixth valve 821; the cathode gas-liquid separator 811 is used to separate the hydrogen and water vapor discharged from the cathode outlet of the test electrolyzer into gas and liquid, and then discharge them to the hydrogen exhaust pipeline 83 and the fifth valve 812 respectively when the test electrolyzer is a PEM electrolyzer; when the test electrolyzer is an alkaline electrolyzer, the hydrogen and unreacted alkaline solution discharged from the cathode outlet of the test electrolyzer are separated into gas and liquid, and then discharged to the hydrogen exhaust pipeline 83 and the first alkaline solution recovery module 82 respectively;

[0082] The outlet of the fifth valve 812 is connected to the cathode drainage pipeline 84; the fifth valve 812 is used to open when the test electrolyzer is a PEM electrolyzer to drain the condensed water discharged from the second outlet of the cathode gas-liquid separator 811;

[0083] The outlet of the sixth valve 821 is connected to the third inlet of the alkaline solution supply module 40; the sixth valve 821 is used to open when the test electrolytic cell is an alkaline electrolytic cell, so that the unreacted alkaline solution discharged from the second outlet of the cathode gas-liquid separator 811 can flow back to the alkaline solution supply module 40.

[0084] In the embodiment of the utility model, the fifth valve 812 and the sixth valve 821 can be manual valves or electric valves. The fifth valve 812 and the sixth valve 821 can be used to control the discharge of the condensed water separated by the cathode gas-liquid separator 811 during the PEM electrolyzer test and the unreacted alkaline solution separated by the cathode gas-liquid separator 811 during the alkaline electrolyzer test. For example, when the test electrolyzer is a PEM electrolyzer, the fifth valve 812 is opened and the sixth valve 821 is closed, so that the hydrogen and water vapor discharged from the cathode outlet of the test electrolyzer are separated by the cathode gas-liquid separator 811, and the hydrogen is discharged through the hydrogen exhaust pipeline 83 connected to the first outlet of the cathode gas-liquid separator 811, and the condensed water is discharged through the outlet of the fifth valve 812 connected to the second outlet of the cathode gas-liquid separator 811 when the fifth valve 812 is opened. The cathode drainage pipeline 84 is discharged; when the test electrolyzer is an alkaline electrolyzer, the sixth valve 821 is opened and the fifth valve 812 is closed, so that the hydrogen gas and the unreacted alkaline solution discharged from the cathode outlet of the test electrolyzer are separated by gas and liquid through the cathode gas-liquid separator 811, and the hydrogen gas is discharged through the hydrogen exhaust pipeline 83 connected to the first outlet of the cathode gas-liquid separator 811, and the unreacted alkaline solution is returned to the alkaline solution supply module 40 through the first alkaline solution recovery pipeline 822 connected to the outlet of the sixth valve 821 (that is, the alkaline solution recovery pipeline connected from the outlet of the sixth valve 821 to the third inlet of the alkaline solution supply module 40) when the sixth valve 821 connected to the second outlet of the cathode gas-liquid separator 811 is opened. In this way, the controllability of the electrolyzer test can be further improved by the fifth valve 812 and the sixth valve 821.

[0085] In one possible implementation, see Figure 2 As shown, the anode exhaust module 70 includes an anode exhaust and drainage module 73, an oxygen exhaust pipeline 75 and an anode drainage pipeline 76;

[0086] The inlet of the anode exhaust and drainage module 73 is connected to the anode outlet of the test electrolyzer, the first outlet of the anode exhaust and drainage module 73 is connected to the oxygen exhaust pipeline 75, and the second outlet of the anode exhaust and drainage module 73 is connected to the anode drainage pipeline 76; the anode exhaust and drainage module 73 is used to separate the oxygen and water vapor discharged from the anode outlet of the test electrolyzer into gas-liquid state and discharge them to the oxygen exhaust pipeline 75 and the anode drainage pipeline 76 respectively when the test electrolyzer is a PEM electrolyzer, and to separate the oxygen and water vapor discharged from the anode outlet of the test electrolyzer into gas-liquid state and discharge them to the oxygen exhaust pipeline 75 and the anode drainage pipeline 76 respectively when the test electrolyzer is an alkaline electrolyzer.

[0087] In the embodiment of the utility model, when the test electrolyzer is a PEM electrolyzer, after the oxygen and unreacted deionized water discharged from the anode outlet of the test electrolyzer are separated into gas and liquid through the anode exhaust and drainage module 73, the oxygen is discharged through the oxygen exhaust pipeline 75 connected to the first outlet of the anode exhaust and drainage module 73, and the unreacted deionized water is discharged through the anode drainage pipeline 76 connected to the second outlet of the anode exhaust and drainage module 73; when the test electrolyzer is an alkaline electrolyzer, after the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer are separated into gas and liquid through the anode exhaust and drainage module 73, the oxygen is discharged through the oxygen exhaust pipeline 75 connected to the first outlet of the anode exhaust and drainage module 73, and the unreacted alkaline solution is discharged through the anode drainage pipeline 76 connected to the second outlet of the anode exhaust and drainage module 73. In this way, whether in the test of the PEM electrolyzer or in the test of the alkaline electrolyzer, the accurate extraction of oxygen can be achieved through the anode exhaust and drainage module 73, thereby improving the accuracy of the performance test results of the test electrolyzer determined based on oxygen.

[0088] In another possible implementation, see Figure 2 As shown, the anode emission module 70 includes a first anode emission control module 71, a second anode emission control module 72, an anode exhaust and drainage module 73, a second alkaline solution recovery module 74, an oxygen exhaust pipeline 75 and an anode drainage pipeline 76;

[0089] The inlet of the first anode emission control module 71 is communicated with the anode outlet of the test electrolyzer, the first outlet of the first anode emission control module 71 is communicated with the second inlet of the deionized water supply module 30, and the second outlet of the first anode emission control module 71 is communicated with the first inlet of the anode exhaust drainage module 73; the first anode emission control module 71 is used to connect the anode outlet of the test electrolyzer with the second inlet of the deionized water supply module 30 when the test electrolyzer is a PEM electrolyzer so that the oxygen and unreacted deionized water discharged from the anode outlet of the test electrolyzer flow back to the deionized water supply module 30, and to connect the anode outlet of the test electrolyzer with the first inlet of the anode exhaust drainage module 73 when the test electrolyzer is an alkaline electrolyzer so that the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer are discharged to the anode exhaust drainage module 73;

[0090] The inlet of the second anode emission control module 72 is communicated with the second outlet of the deionized water supply module 30, and the outlet of the second anode emission control module 72 is communicated with the second inlet of the anode exhaust drainage module 73; the second anode emission control module 72 is used to connect the second outlet of the deionized water supply module 30 and the second inlet of the anode exhaust drainage module 73 when the test electrolyzer is a PEM electrolyzer, so that oxygen and water vapor in the deionized water supply module 30 are discharged to the anode exhaust drainage module 73;

[0091] The first outlet of the anode exhaust and drainage module 73 is communicated with the oxygen exhaust pipeline 75, the second outlet of the anode exhaust and drainage module 73 is communicated with the anode drainage pipeline 76, and the third outlet of the anode exhaust and drainage module 73 is communicated with the inlet of the second alkaline solution recovery module 74; the anode exhaust and drainage module 73 is used to separate the oxygen and water vapor in the deionized water supply module 30 discharged from the outlet of the second anode emission control module 72 into gas and liquid, and discharge them to the oxygen exhaust pipeline 75 and the anode drainage pipeline 76 respectively when the test electrolyzer is a PEM electrolyzer; when the test electrolyzer is an alkaline electrolyzer, separate the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer into gas and liquid, and discharge them to the oxygen exhaust pipeline 75 and the second alkaline solution recovery module 74 respectively;

[0092] The outlet of the second alkaline solution recovery module 74 is connected to the third inlet of the alkaline solution supply module 40; the second alkaline solution recovery module 74 is used to return the unreacted alkaline solution discharged from the second outlet of the anode exhaust drainage module 73 to the alkaline solution supply module 40 when the test electrolytic cell is an alkaline electrolytic cell.

[0093] In the embodiment of the utility model, when the test electrolyzer is a PEM electrolyzer, the first anode emission control module 71 is connected to its inlet a 71 With the first exit b 71 , to connect the anode outlet of the test electrolytic cell with the second inlet of the deionized water supply module 30, the second anode emission control module 72 is connected to its inlet a 72 With its export b 72 , to connect the second outlet of the deionized water supply module 30 and the second inlet of the anode exhaust and drainage module 73, so that the oxygen and unreacted deionized water discharged from the anode outlet of the test electrolyzer are discharged through the first outlet b of the first anode emission control module 71 71 The deionized water is refluxed to the deionized water supply module 30, and the unreacted deionized water is stored in the deionized water supply module 30. The oxygen and water vapor are discharged to the second anode emission control module 72 through the water tank exhaust line 77 connected to the second outlet of the deionized water supply module 30, and then discharged to the anode exhaust and drainage module 73 through the outlet of the second anode emission control module 72 for gas-liquid separation. The oxygen is discharged through the oxygen exhaust line 75 connected to the first outlet of the anode exhaust and drainage module 73, and the condensed water is discharged through the anode drainage line 76 connected to the second inlet of the anode exhaust and drainage module 73. When the test electrolytic cell is an alkaline electrolytic cell, the first anode emission control module 71 is connected to the inlet a of the anode exhaust and drainage module 73. 71 With the second exit c 71 , to connect the anode outlet of the test electrolyzer with the first inlet of the anode exhaust and drainage module 73, and the second alkaline solution recovery module 74 is connected to its inlet a 74With its export b 74 , to connect the third outlet of the anode exhaust and drainage module 73 and the third inlet of the alkaline solution supply module 40, so that the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer are discharged through the second outlet c of the first anode emission control module 71. 71 After being discharged to the anode exhaust and drainage module 73 for gas-liquid separation, the oxygen is discharged through the oxygen exhaust pipeline 75 connected to the first outlet of the anode exhaust and drainage module 73, and the unreacted alkaline solution is discharged to the second alkaline solution recovery module 74 through the second inlet of the anode exhaust and drainage module 73, and then flows back to the alkaline solution supply module 40 for storage through the outlet of the second alkaline solution recovery module 74. In this way, when the test electrolyzer is a PEM electrolyzer, the first anode emission control module 71, the second anode emission control module 72 and the anode exhaust and drainage module 73 can realize the recycling of deionized water, and when the test electrolyzer is an alkaline electrolyzer, the first anode emission control module 71, the anode exhaust and drainage module 73 and the second alkaline solution recovery module 74 can realize the recycling of alkaline solution, thereby further reducing the cost of electrolyzer testing.

[0094] In one possible implementation, see Figure 2 As shown, the first anode emission control module 71 includes a first three-way valve 711;

[0095] The inlet of the first three-way valve 711 is connected to the anode outlet of the test electrolyzer, the first outlet of the first three-way valve 711 is connected to the second inlet of the deionized water supply module 30, and the second outlet of the first three-way valve 711 is connected to the first inlet of the anode exhaust and drainage module 73; the first three-way valve 711 is used to connect the anode outlet of the test electrolyzer and the second inlet of the deionized water supply module 30 when the test electrolyzer is a PEM electrolyzer so that the oxygen and unreacted deionized water discharged from the anode outlet of the test electrolyzer can flow back to the deionized water supply module 30, and to connect the anode outlet of the test electrolyzer and the first inlet of the anode exhaust and drainage module 73 when the test electrolyzer is an alkaline electrolyzer so that the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer can be discharged to the anode exhaust and drainage module 73.

[0096] In the embodiment of the utility model, when the test electrolytic cell is a PEM electrolytic cell, the inlet a is connected through the first three-way valve 711. 711 With its first exit b 711 The anode outlet of the test electrolytic cell is connected to the second inlet of the deionized water supply module 30, so that the oxygen and unreacted deionized water discharged from the anode outlet of the test electrolytic cell can flow back to the deionized water supply module 30; when the test electrolytic cell is an alkaline electrolytic cell, the inlet a of the test electrolytic cell is connected through the first three-way valve 711. 711 With its second exit c 711The anode outlet of the test electrolytic cell is connected to the first inlet of the anode exhaust and drainage module 73, so that the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolytic cell can be discharged to the anode exhaust and drainage module 73. In this way, the first three-way valve 711 is connected to its inlet a. 711 With its first exit b 711 Or connect its import a 711 With its second exit c 711 While achieving oxygen extraction and emission, it also realizes the deionized water recovery during PEM electrolyzer testing and the alkaline solution alkali recovery during alkaline electrolyzer testing, thereby further reducing the testing cost of the electrolyzer.

[0097] In one possible implementation, see Figure 2 As shown, the second anode emission control module 72 includes a seventh valve 721;

[0098] The inlet of the seventh valve 721 is connected to the second outlet of the deionized water supply module 30, and the outlet of the seventh valve 721 is connected to the second inlet of the anode exhaust and drainage module 73; the seventh valve 721 is used to open when the test electrolyzer is a PEM electrolyzer to allow oxygen and water vapor in the deionized water supply module 30 to be discharged to the anode exhaust and drainage module 73.

[0099] In the embodiment of the utility model, the seventh valve 721 can be a manual valve or an electric valve. The seventh valve 721 can be used to control the discharge of oxygen in the deionized water supply module 30. For example, when the test electrolyzer is a PEM electrolyzer, the seventh valve 721 is opened to connect the second outlet of the deionized water supply module 30 and the second inlet of the anode exhaust and drainage module 73, so that the oxygen and water vapor in the deionized water supply module 30 are discharged to the anode exhaust and drainage module 73 for gas-liquid separation and then discharged, thereby further improving the controllability of the electrolyzer test.

[0100] In one possible implementation, see Figure 2 As shown, the anode exhaust and drainage module 73 includes an anode gas-liquid separator 731 and an eighth valve 732; the second alkaline solution recovery module 74 includes a ninth valve 741;

[0101] The first inlet of the anode gas-liquid separator 731 is communicated with the second outlet of the first anode emission control module 71, the second inlet of the anode gas-liquid separator 731 is communicated with the outlet of the second anode emission control module 72, the first outlet of the anode gas-liquid separator 731 is communicated with the oxygen exhaust pipeline 75, and the second outlet of the anode gas-liquid separator 731 is respectively communicated with the inlet of the eighth valve 732 and the inlet of the ninth valve 741; the anode gas-liquid separator 731 is used for separating the oxygen and water vapor in the deionized water supply module 30 discharged from the outlet of the second anode emission control module 72 into gas and liquid, and then discharging them to the oxygen exhaust pipeline 75 and the eighth valve 732 respectively when the test electrolyzer is a PEM electrolyzer; when the test electrolyzer is an alkaline electrolyzer, separating the oxygen and unreacted alkaline solution discharged from the second outlet of the first anode emission control module 71 into gas and liquid, and then discharging them to the oxygen exhaust pipeline 75 and the ninth valve 741 respectively;

[0102] The outlet of the eighth valve 732 is connected to the anode drainage pipeline 76; the eighth valve 732 is used to open when the test electrolytic cell is a PEM electrolytic cell, so as to drain the condensed water discharged from the second outlet of the anode gas-liquid separator 731;

[0103] The outlet of the ninth valve 741 is connected to the third inlet of the alkaline solution supply module 40; the ninth valve 741 is used to open when the test electrolytic cell is an alkaline electrolytic cell, so that the unreacted alkaline solution discharged from the second outlet of the anode gas-liquid separator 731 can flow back to the alkaline solution supply module 40.

[0104] In the embodiment of the utility model, the eighth valve 732 and the ninth valve 741 can be manual valves or electric valves. The eighth valve 732 and the ninth valve 741 can be used to control the discharge of the condensed water separated by the anode gas-liquid separator 731 during the PEM electrolyzer test and the unreacted alkaline solution separated by the anode gas-liquid separator 731 during the alkaline electrolyzer test. For example, when the test electrolyzer is a PEM electrolyzer, the eighth valve 732 is opened and the ninth valve 741 is closed, so that the oxygen and water vapor in the deionized water supply module 30 discharged from the outlet of the second anode emission control module 72 are separated by the anode gas-liquid separator 731, and the oxygen is discharged through the oxygen exhaust pipeline 75 connected to the first outlet of the anode gas-liquid separator 731, and the condensed water is discharged through the anode drainage pipeline 76 connected to the outlet of the eighth valve 732 when the eighth valve 732 connected to the second outlet of the anode gas-liquid separator 731 is opened. When the test electrolyzer is an alkaline electrolyzer, the ninth valve 741 is opened and the eighth valve 732 is closed, so that the oxygen and the unreacted alkaline solution discharged from the second outlet of the first anode emission control module 71 are separated by gas and liquid through the cathode gas-liquid separator 811, and the oxygen is discharged through the oxygen exhaust pipeline 75 connected to the first outlet of the anode gas-liquid separator 731, and the unreacted alkaline solution is returned to the alkaline solution supply module 40 through the second alkaline solution recovery pipeline 742 (that is, the alkaline solution recovery pipeline from the outlet of the ninth valve 741 to the first alkaline solution recovery pipeline 822) connected to the outlet of the ninth valve 741 when the ninth valve 741 connected to the second outlet of the anode gas-liquid separator 731 is opened and the first alkaline solution recovery pipeline 822 connected to the second alkaline solution recovery pipeline 742. In this way, the controllability of the electrolyzer test can be further improved by the eighth valve 732 and the ninth valve 741.

[0105] In one possible implementation, see Figure 2 As shown, the deionized water supply module 30 includes a water tank 31 and a water pump 32;

[0106] The first inlet of the water tank 31 is communicated with the first outlet of the deionized water supply module 10, the first outlet of the water tank 31 is communicated with the inlet of the water pump 32, the second inlet of the water tank 31 is communicated with the first outlet of the first anode emission control module 71, and the second outlet of the water tank 31 is communicated with the inlet of the second anode emission control module 72; the water tank 31 is used to receive and store the deionized water supplied by the deionized water supply module 10 and the unreacted deionized water discharged from the anode outlet of the test electrolyzer during the electrolyzer test when the test electrolyzer is a PEM electrolyzer;

[0107] The outlet of the water pump 32 is connected to the first inlet of the anode inlet control module 50 ; the water pump 32 is used to extract deionized water from the water tank 31 and output it to the anode inlet control module 50 when the test electrolyzer is a PEM electrolyzer.

[0108] In the embodiment of the utility model, when the test electrolyzer is a PEM electrolyzer, the deionized water supply module 10 supplies deionized water to the water tank 31, and the water pump 32 extracts deionized water from the water tank 31 and delivers it to the anode inlet control module 50. The anode inlet control module 50 is connected to its first inlet a 50 Instead of exporting 50 The outlet of the water pump 32 is connected to the anode inlet of the test electrolytic cell, that is, the second valve 11 is opened and the third valve 12 is closed to supply deionized water to the water tank 31. The water pump 32 extracts deionized water from the water tank 31 and delivers it to the second three-way valve 51. The second three-way valve 51 is connected to its first inlet a 51 Instead of exporting 51 The outlet of the water pump 32 is connected to the anode inlet of the test electrolyzer, so that the deionized water flows into the anode of the test electrolyzer to electrolyze water to produce hydrogen. In this way, the anode of the test electrolyzer can be filled with deionized water through the water tank 31 and the water pump 32, so that the PEM electrolyzer test can be realized.

[0109] In one possible implementation, see Figure 2 As shown, the alkaline solution supply module 40 includes an alkaline solution tank 41 and an alkaline solution pump 42;

[0110] The first inlet of the alkaline solution tank 41 is connected to the second outlet of the deionized water supply module 10, the second inlet of the alkaline solution tank 41 is connected to the outlet of the alkaline solution supply module 20, the third inlet of the alkaline solution tank 41 is connected to the outlet of the first alkaline solution recovery module 82 and the outlet of the second alkaline solution recovery module 74 respectively, and the first outlet of the alkaline solution tank 41 is connected to the inlet of the alkaline solution pump 42; the alkaline solution tank 41 is used to receive and store the deionized water supplied by the deionized water supply module 10 and the alkaline solution supplied by the alkaline solution supply module 20 when the test electrolytic cell is an alkaline electrolytic cell, as well as the unreacted alkaline solution discharged from the anode outlet of the test electrolytic cell recovered by the second alkaline solution recovery module 74 during the electrolytic cell test and the unreacted alkaline solution discharged from the cathode outlet of the test electrolytic cell recovered by the first alkaline solution recovery module 82;

[0111] The outlet of the alkaline solution pump 42 is connected to the second inlet of the anode inlet control module 50 ; the alkaline solution pump 42 is used to extract alkaline solution from the alkaline solution tank 41 and output it to the anode inlet control module 50 when the test electrolytic cell is an alkaline electrolytic cell.

[0112] In the embodiment of the utility model, when the test electrolytic cell is an alkaline electrolytic cell, the deionized water supply module 10 supplies deionized water to the alkaline solution tank 41, and the alkaline solution supply module 20 supplies alkaline solution to the alkaline solution tank 41. When the concentration of the alkaline solution in the alkaline solution tank 41 reaches the concentration value required for the electrolytic cell test, the alkaline solution pump 42 extracts the alkaline solution from the alkaline solution tank 41 and delivers it to the anode inlet control module 50. The anode inlet control module 50 controls the anode inlet by connecting its second inlet b 50 Instead of exporting 50 The outlet of the alkaline solution pump 42 is connected to the anode inlet of the test electrolytic cell, so that the alkaline solution flows into the anode of the test electrolytic cell. At the same time, the cathode inlet control module 60 is connected to its inlet a 60 With its export b 60 The outlet of the anode inlet control module 50 is connected to the cathode inlet of the test electrolytic cell, that is, the second valve 11 is closed, the third valve 12 is opened, so as to supply deionized water to the alkaline solution tank 41, and at the same time, the fourth valve 21 is opened to supply alkaline solution to the alkaline solution tank 41. When the concentration of the alkaline solution in the alkaline solution tank 41 reaches the concentration value required for the electrolytic cell test, the alkaline solution pump 42 extracts the alkaline solution from the alkaline solution tank 41 and delivers it to the second three-way valve 51. The second three-way valve 51 is connected to its second inlet b 51 Instead of exporting 51 The alkaline solution tank 41 and the alkaline solution pump 42 are connected to the outlet of the test electrolytic cell and the anode inlet of the test electrolytic cell. At the same time, the first valve 61 is opened to connect the outlet of the alkaline solution pump 42 and the cathode inlet of the test electrolytic cell, so that the alkaline solution flows into the anode and cathode of the test electrolytic cell, and the test electrolytic cell performs water electrolysis to produce hydrogen. In this way, the alkaline solution tank 41 and the alkaline solution pump 42 can be used to fill the positive and negative electrodes of the test electrolytic cell, so that the alkaline electrolytic cell test can be realized.

[0113] In one possible implementation, see Figure 2 As shown, the DC power supply module 90 includes a DC power supply 91 and a negative power line interface 92 and a positive power line interface 93 of the DC power supply 91;

[0114] In the embodiment of the utility model, the negative power line interface 92 is used to connect the cathode power line interface of the test electrolytic cell, and the positive power line interface 93 is used to connect the anode power line interface of the test electrolytic cell, so that the DC power supply 91 can provide electrolytic power for the test electrolytic cell.

[0115] In one possible implementation, see Figure 1 As shown, the dual-purpose electrolytic cell testing system provided by the embodiment of the utility model further includes a deionized water monitoring and discharge module 100 and an alkaline solution monitoring and discharge module 110;

[0116] The deionized water monitoring and discharge module 100 is disposed on the water tank 31; the deionized water monitoring and discharge module 100 is used to monitor the state of the deionized water in the water tank 31 when the test electrolyzer is a PEM electrolyzer, and determine the discharge or replenishment of the deionized water in the water tank 31 according to the state of the deionized water in the water tank 31;

[0117] The alkaline solution monitoring and discharge module 110 is arranged on the alkaline solution tank 41; the alkaline solution monitoring and discharge module 110 is used to monitor the state of the alkaline solution in the alkaline solution tank 41 when the test electrolytic cell is an alkaline electrolytic cell, and determine the discharge or replenishment of the alkaline solution in the alkaline solution tank 41 according to the state of the alkaline solution in the alkaline solution tank 41.

[0118] In an embodiment of the utility model, when the test electrolytic cell is a PEM electrolytic cell, the deionized water monitoring and discharge module 100 can be used to monitor the state and discharge and replenish the deionized water in the water tank 31, thereby achieving precise control of the deionized water in the water tank 31, thereby improving the test accuracy of the PEM electrolytic cell; when the test electrolytic cell is an alkaline electrolytic cell, the alkaline solution monitoring and discharge module 110 can be used to monitor the state and discharge and replenish the alkaline solution in the alkaline solution tank 41, thereby achieving precise control of the alkaline solution in the alkaline solution tank 41, thereby improving the test accuracy of the alkaline electrolytic cell.

[0119] In one possible implementation, see Figure 2 As shown, the deionized water monitoring and discharge module 100 includes a first liquid level sensor 101, a conductivity meter 102 and a tenth valve 103;

[0120] The first liquid level sensor 101 is disposed in the water tank 31; the first liquid level sensor 101 is used to monitor the deionized water level in the water tank 31 when the test electrolyzer is a PEM electrolyzer;

[0121] The conductivity meter 102 is disposed in the water tank 31; the conductivity meter 102 is used to monitor the conductivity of the deionized water in the water tank 31 when the test electrolytic cell is a PEM electrolytic cell;

[0122] The inlet of the tenth valve 103 is connected to the third outlet of the water tank 31, and the outlet of the tenth valve 103 is connected to the deionized water discharge pipeline 104; the tenth valve 103 is used to open when the conductivity of the deionized water in the water tank 31 is lower than the conductivity threshold and / or the deionized water level in the water tank 31 is higher than the first level threshold when the test electrolyzer is a PEM electrolyzer, so as to discharge the deionized water in the water tank 31.

[0123] In the embodiment of the utility model, the tenth valve 103 can be a manual valve or an electric valve. The tenth valve 103 can realize the discharge control of the deionized water in the water tank 31. For example, the conductivity of the deionized water in the water tank 31 is monitored in real time by the conductivity meter 102. When the conductivity of the deionized water in the water tank 31 is lower than the conductivity threshold, the tenth valve 103 is opened to discharge all the deionized water in the water tank 31. After that, the second valve 11 is opened to replenish the deionized water into the water tank 31 until the deionized water level in the water tank 31 reaches the first level threshold. Then, the second valve 11 is closed to continue the PEM electrolyzer test. In addition, the deionized water level in the water tank 31 is monitored in real time by the first level sensor 101. When the deionized water in the water tank 31 reaches the first level threshold, the deionized water in the water tank 31 is discharged. When the deionized water level is higher than the first level threshold, the tenth valve 103 is opened to discharge the deionized water in the water tank 31, until the deionized water level in the water tank 31 reaches the first level threshold, the tenth valve 103 is closed, and the PEM electrolyzer test is continued. When the deionized water level in the water tank 31 is lower than the second level threshold (the second level threshold is less than the first level threshold), the second valve 11 is opened to replenish the deionized water into the water tank 31, until the deionized water level in the water tank 31 reaches the first level threshold, the second valve 11 is closed, and the PEM electrolyzer test is continued. In this way, the first level sensor 101, the conductivity meter 102 and the tenth valve 103 can realize accurate control of the deionized water in the water tank 31, thereby improving the controllability and accuracy of the PEM electrolyzer test.

[0124] In one possible implementation, see Figure 2 As shown, the alkaline solution monitoring and discharge module 110 includes a second liquid level sensor 111, a density meter 112 and an eleventh valve 113;

[0125] The second liquid level sensor 111 is disposed in the alkaline solution tank 41; the second liquid level sensor 111 is used to monitor the liquid level of the alkaline solution in the alkaline solution tank 41 when the test electrolytic cell is an alkaline electrolytic cell;

[0126] The density meter 112 is disposed in the alkaline solution tank 41; the density meter 112 is used to monitor the concentration of the alkaline solution in the alkaline solution tank 41 when the test electrolytic cell is an alkaline electrolytic cell;

[0127] The inlet of the eleventh valve 113 is connected to the second outlet of the alkaline solution tank 41, and the outlet of the eleventh valve 113 is connected to the alkaline solution discharge pipeline 114; the eleventh valve 113 is used to open when the test electrolytic cell is an alkaline electrolytic cell and the concentration of the alkaline solution in the alkaline solution tank 41 is higher than the concentration threshold and / or the liquid level of the alkaline solution in the alkaline solution tank 41 is higher than the third liquid level threshold, so as to discharge the alkaline solution in the alkaline solution tank 41.

[0128] In the embodiment of the utility model, the eleventh valve 113 can be a manual valve or an electric valve. The eleventh valve 113 can realize the discharge control of the alkaline solution in the alkaline solution tank 41. For example, the concentration of the alkaline solution in the alkaline solution tank 41 is monitored in real time by the density meter 112. When the concentration of the alkaline solution in the alkaline solution tank 41 is higher than the concentration threshold, the third valve 12 is opened to replenish deionized water into the alkaline solution tank 41 until the concentration of the alkaline solution in the alkaline solution tank 41 reaches the concentration threshold, then the third valve 12 is closed, and the alkaline electrolytic cell test is continued; when the concentration of the alkaline solution in the alkaline solution tank 41 is lower than the concentration threshold, the fourth valve 21 is opened to replenish the alkaline solution into the alkaline solution tank 41 until the concentration of the alkaline solution in the alkaline solution tank 41 reaches the concentration threshold, then the fourth valve 21 is closed, and the alkaline electrolytic cell test is continued; in addition, the liquid level of the alkaline solution in the alkaline solution tank 41 is monitored in real time by the second liquid level sensor 111. When the alkaline solution level in the alkaline solution tank 41 is higher than the third liquid level threshold, the eleventh valve 113 is opened to discharge the alkaline solution in the alkaline solution tank 41, until the alkaline solution level in the alkaline solution tank 41 reaches the third liquid level threshold, then the eleventh valve 113 is closed, and the alkaline electrolytic cell test is continued; when the alkaline solution level in the alkaline solution tank 41 is lower than the fourth liquid level threshold (the fourth liquid level threshold is less than the third liquid level threshold), the third valve 12 is opened to replenish deionized water into the alkaline solution tank 41, and the fourth valve 21 is opened to replenish the alkaline solution into the alkaline solution tank 41, until the alkaline solution level in the alkaline solution tank 41 reaches the third liquid level threshold, then the third valve 12 and the fourth valve 21 are closed, and the alkaline electrolytic cell test is continued. In this way, the alkaline solution in the alkaline solution tank 41 can be precisely controlled through the second liquid level sensor 111, the density meter 112 and the eleventh valve 113, thereby improving the controllability and accuracy of the alkaline electrolytic cell test.

[0129] In summary, in the dual-use electrolyzer test system provided by the embodiment of the present invention, when testing the PEM electrolyzer, the first three-way valve 711 connects its inlet a 711 With the first exit b 711 The second three-way valve 51 is in the open state of 90° from right to bottom, and the first inlet a of the second three-way valve 51 is connected. 51 and exit c 51 It is in an open state of 90° from bottom to right; the fourth valve 21, the third valve 12, the ninth valve 741, the first valve 61, the sixth valve 821, the eleventh valve 113, and the eighth valve 732 are in a closed state; deionized water flows from the deionized water supply pipeline 13 through the second valve 11 to the water tank 31, and is pumped by the water pump 32 through the deionized water supply pipeline 33, the second three-way valve 51 and the anode inlet pipeline 52 to the anode of the PEM electrolyzer for electrolysis of water to produce hydrogen.

[0130] The oxygen generated by the anode of the PEM electrolyzer and the unreacted deionized water enter the water tank 31 through the anode outlet pipeline 78, the first three-way valve 711 and the deionized water recovery pipeline 712, and the unreacted deionized water remains in the water tank 31. The oxygen enters the anode gas-liquid separator 731 through the water tank exhaust pipeline 77 and the seventh valve 721 for gas-liquid separation. The oxygen is discharged through the oxygen exhaust pipeline 75, and the condensed deionized water remains in the anode gas-liquid separator 731. When the deionized water level in the anode gas-liquid separator 731 reaches the target level, the eighth valve 732 is opened, and the deionized water in the anode gas-liquid separator 731 is discharged. Excess deionized water is discharged through the eighth valve 732 and the anode drainage pipeline 76; the hydrogen generated by the cathode of the PEM electrolyzer and the deionized water transferred to the cathode due to electroosmotic drag enter the cathode gas-liquid separator 811 through the cathode outlet pipeline 85 for gas-liquid separation, the hydrogen is discharged through the hydrogen exhaust pipeline 83, and the condensed deionized water remains in the cathode gas-liquid separator 811. When the deionized water level in the cathode gas-liquid separator 811 reaches the target level, the fifth valve 812 is opened, and the excess deionized water in the cathode gas-liquid separator 811 is discharged through the fifth valve 812 and the cathode drainage pipeline 84.

[0131] During the PEM electrolyzer test, the DC power supply 91 provides electrolysis power to the PEM electrolyzer, and the positive power supply interface 93 and the negative power supply interface 92 of the DC power supply 91 are respectively connected to the anode power supply interface and the cathode power supply interface of the PEM electrolyzer. The conductivity of the deionized water in the water tank 31 is monitored in real time by the conductivity meter 102. When the conductivity of the deionized water in the water tank 31 is lower than the conductivity threshold, the tenth valve 103 is opened to discharge all the deionized water in the water tank 31. After that, the second valve 11 is opened to replenish the deionized water into the water tank 31 until the deionized water level in the water tank 31 reaches the first level threshold. The second valve 11 is closed to continue the PEM electrolyzer test; the deionized water level in the water tank 31 is monitored in real time by the first level sensor 101. When the deionized water level in the water tank 31 reaches the first level threshold, the tenth valve 103 is opened to discharge all the deionized water in the water tank 31. After that, the second valve 11 is opened to replenish the deionized water into the water tank 31. When the deionized water level in the water tank 31 reaches the first level threshold, the second valve 11 is closed to continue the PEM electrolyzer test. When the deionized water level in the water tank 31 is lower than the second level threshold, the second valve 11 is opened, and the water tank 31 is replenished with water through the deionized water supply pipeline 13 until the deionized water level in the water tank 31 reaches the first level threshold (the first level threshold is greater than the second level threshold); when the deionized water level in the water tank 31 is higher than the first level threshold, the tenth valve 103 is opened, and the deionized water discharge pipeline 104 is used to drain water until the deionized water level in the water tank 31 reaches the first level threshold, and the tenth valve 103 is closed to continue the PEM electrolyzer test.

[0132] During the alkaline electrolytic cell test, the first three-way valve 711 is connected to its inlet a 711 With the second exit c 711 The second three-way valve 51 is opened 180 degrees from right to left, and the second inlet b51 and exit c 51 It is in an open state of 90° from top to right; the second valve 11, the tenth valve 103, the fifth valve 812, the seventh valve 721 and the eighth valve 732 are in a closed state; the alkaline solution flows into the alkaline solution tank 41 from the alkaline solution supply pipeline 22 through the fourth valve 21, and the deionized water flows into the alkaline solution tank 41 from the deionized water supply pipeline 13 through the third valve 12; the alkaline solution is sent to the anode of the alkaline electrolytic cell from the alkaline solution supply pipeline 43 through the alkaline solution pump 42, the second three-way valve 51 and the anode inlet pipeline 52, and the alkaline solution is sent to the cathode of the alkaline electrolytic cell from the alkaline solution supply pipeline 43 through the second three-way valve 51, the first valve 61 and the cathode inlet pipeline 62 to electrolyze water to produce hydrogen.

[0133] The oxygen generated at the anode of the alkaline electrolytic cell and the unreacted alkaline solution enter the anode gas-liquid separator 731 through the anode outlet pipeline 78 and the first three-way valve 711 for gas-liquid separation, the oxygen is discharged through the oxygen exhaust pipeline 75, and the alkaline solution remains in the anode gas-liquid separator 731. When the alkaline solution level in the anode gas-liquid separator 731 reaches the target level, the ninth valve 741 is opened, and the excess alkaline solution is returned to the alkaline solution tank 41 for recycling via the ninth valve 741, the second alkaline solution recovery pipeline 742 and the first alkaline solution recovery pipeline 822 connected to the second alkaline solution recovery pipeline 742. The hydrogen gas and unreacted alkaline solution generated at the cathode of the alkaline electrolytic cell enter the cathode gas-liquid separator 811 through the cathode outlet pipeline 85 for gas-liquid separation, the hydrogen gas is discharged through the hydrogen exhaust pipeline 83, and the alkaline solution remains in the cathode gas-liquid separator 811. When the alkaline solution level in the cathode gas-liquid separator 811 reaches the target level, the sixth valve 821 opens, and the excess alkaline solution passes through the sixth valve 821 and the first alkaline solution recovery pipeline 822 and returns to the alkaline solution tank 41 for recycling.

[0134] During the alkaline electrolytic cell test, the DC power supply 91 provides electrolytic power to the alkaline electrolytic cell, and the positive power supply interface 93 and the negative power supply interface 92 of the DC power supply 91 are respectively connected to the anode power supply interface and the cathode power supply interface of the alkaline electrolytic cell. The concentration of the alkaline solution in the alkaline solution tank 41 is monitored in real time by the density meter 112. When the concentration of the alkaline solution is higher than the concentration threshold, the third valve 12 is opened, and deionized water is supplied to the alkaline solution tank 41 through the deionized water supply pipeline 13 until the concentration of the alkaline solution in the alkaline solution tank 41 reaches the concentration threshold, and the third valve 12 is closed; when the concentration of the alkaline solution is low, the fourth valve 21 is opened, and alkaline solution is supplied to the alkaline solution tank 41 through the alkaline solution supply pipeline 22 until the concentration of the alkaline solution in the alkaline solution tank 41 reaches the concentration threshold, and the fourth valve 21 is closed; the liquid level of the alkaline solution in the alkaline solution tank 41 is monitored in real time by the second liquid level sensor 111. When the alkaline solution When the alkaline solution level in the tank 41 is lower than the fourth liquid level threshold, the third valve 12 and the fourth valve 21 are opened to respectively add deionized water and alkaline solution to the alkaline solution tank 41 until the alkaline solution level in the alkaline solution tank 41 reaches the third liquid level threshold (the third liquid level threshold is greater than the fourth liquid level threshold), and then the third valve 12 and the fourth valve 21 are closed to continue the alkaline electrolytic cell test; when the alkaline solution level in the alkaline solution tank 41 is higher than the third liquid level threshold, the eleventh valve 113 is opened, and the alkaline solution in the alkaline solution tank 41 is discharged through the alkaline solution discharge pipeline 114 until the alkaline solution level in the alkaline solution tank 41 reaches the third liquid level threshold, and then the eleventh valve 113 is closed.

[0135] When switching to a different type of test electrolyzer, for example, when changing the test electrolyzer from an alkaline electrolyzer to a PEM electrolyzer, it is only necessary to connect the anode inlet pipeline 52 and the anode outlet pipeline 78, and connect the first three-way valve 711 to its inlet a. 711 With the first exit b 711In the state of opening 90° from right to bottom, the anode inlet pipeline 52, the anode outlet pipeline 78, the first three-way valve 711 and other related components are fully flushed and the normal test can be performed. The flushed water is discharged through the eighth valve 732 and the anode drainage pipeline 76, or the anode inlet pipeline 52, the anode outlet pipeline 78 and the first three-way valve 711 and other related components are replaced to perform normal testing. In this way, a PEM electrolyzer test system and an alkaline electrolyzer test system are integrated in a dual-use electrolyzer test system, which is suitable for two different test scenarios of PEM electrolyzer test and alkaline electrolyzer test, solving the problem that a set of electrolyzer test systems in traditional test solutions can only perform PEM electrolyzer test or alkaline electrolyzer test alone, realizing multiple uses of one machine and reducing the cost of electrolyzer test. Moreover, by providing two tanks, the water tank 31 and the alkaline solution tank 41, the alkaline solution and deionized water are stored in different tanks respectively. When switching the test electrolytic cell, only the anode inlet pipeline 52, the anode outlet pipeline 78, the first three-way valve 711 and other related components need to be replaced, or the anode inlet pipeline 52, the anode outlet pipeline 78, the first three-way valve 711 and other related components need to be fully flushed to carry out the test. This solves the problem of low efficiency and long time consumption caused by the need to fully flush all components such as tanks and pipelines in the universal electrolytic cell test system when switching different types of test electrolytic cells in the traditional test scheme, realizes rapid replacement / flushing of pipelines, and improves the electrolytic cell test efficiency.

[0136] Based on the above embodiments, the present utility model provides a multi-channel dual-use electrolytic cell testing system. Figure 3 As shown, the multi-channel dual-use electrolytic cell test system provided by the utility model comprises at least two of the above dual-use electrolytic cell test systems connected in parallel ( Figure 3 Only two dual-use electrolytic cell test systems are connected in parallel as an example); wherein the deionized water supply modules of each dual-use electrolytic cell test system are connected in parallel and the alkaline solution supply modules of each dual-use electrolytic cell test system are connected in parallel.

[0137] In the embodiment of the utility model, through the parallel connection of each dual-purpose electrolytic cell testing system, it is possible to simultaneously perform electrolytic cell testing on multiple PEM electrolytic cells and / or multiple alkaline electrolytic cells, which has the advantage of simultaneously testing multiple electrolytic cells, thereby further improving the electrolytic cell testing efficiency.

[0138] In one possible implementation, see Figure 3 As shown, the multi-channel dual-use electrolytic cell testing system provided by the embodiment of the utility model further includes a deionized water safety control module 120 and an alkaline solution safety control module 130;

[0139] The outlet of the deionized water safety control module 120 is respectively connected to the inlet of the deionized water supply module 10 in each dual-purpose electrolytic cell test system; the deionized water safety control module 120 is used to collect the deionized water pressure when deionized water is supplied to each dual-purpose electrolytic cell test system, and control the start or stop of deionized water supply to each dual-purpose electrolytic cell test system according to the collected deionized water pressure;

[0140] The outlet of the alkaline solution safety control module 130 is respectively connected to the inlet of the alkaline solution supply module 20 in each dual-purpose electrolytic cell test system; the alkaline solution safety control module 130 is used to collect the alkaline solution pressure when the alkaline solution is supplied to each dual-purpose electrolytic cell test system, and according to the collected alkaline solution pressure, control the start or stop of the alkaline solution supply to each dual-purpose electrolytic cell test system.

[0141] In the embodiment of the utility model, the deionized water pressure when deionized water is supplied to each dual-purpose electrolyzer test system and the alkaline solution pressure when alkaline solution is supplied are collected by the deionized water safety control module 120 and the alkaline solution safety control module 130, so that real-time monitoring of the deionized water pressure during the deionized water supply process and real-time monitoring of the alkaline solution pressure during the alkaline solution supply process can be achieved. Therefore, when it is monitored that the pressure of the deionized water supplied to each dual-purpose electrolyzer test system exceeds the first pressure threshold, the supply of deionized water to each dual-purpose electrolyzer test system is stopped, and when it is monitored that the pressure of the alkaline solution supplied to each dual-purpose electrolyzer test system exceeds the second pressure threshold, the supply of alkaline solution to each dual-purpose electrolyzer test system is stopped, thereby achieving overpressure emergency stop protection when the flow resistance is abnormally large, ensuring the safety of test personnel and equipment.

[0142] In one possible implementation, see Figure 3 As shown, the deionized water safety control module 120 includes a twelfth valve 121 and a first pressure sensor 122; the alkaline solution safety control module 130 includes a thirteenth valve 131 and a second pressure sensor 132;

[0143] The first pressure sensor 122 is disposed at the inlet of the twelfth valve 121; the first pressure sensor 122 is used to collect the deionized water pressure when the deionized water is supplied to each dual-use electrolytic cell test system;

[0144] The outlet of the twelfth valve 121 is respectively connected to the inlet of the deionized water supply module 10 in each dual-purpose electrolytic cell test system; the twelfth valve 121 is used to control the start or stop of the supply of deionized water to each dual-purpose electrolytic cell test system according to the deionized water pressure collected by the first pressure sensor 122;

[0145] The second pressure sensor 132 is disposed at the inlet of the thirteenth valve 131; the second pressure sensor 132 is used to collect the pressure of the alkaline solution when the de-alkaline solution is supplied to each dual-purpose electrolytic cell test system;

[0146] The outlet of the thirteenth valve 131 is respectively connected to the inlet of the alkaline solution supply module 20 in each dual-purpose electrolytic cell test system; the thirteenth valve 131 is used to control the start or stop of the supply of alkaline solution to each dual-purpose electrolytic cell test system according to the alkaline solution pressure collected by the second pressure sensor 132.

[0147] In the embodiment of the utility model, the twelfth valve 121 and the thirteenth valve 131 can be manual valves or electric valves. The twelfth valve 121 and the thirteenth valve 131 can realize the supply control. For example, the first pressure sensor 122 and the second pressure sensor 132 monitor the deionized water pressure when supplying deionized water to each dual-use electrolyzer test system and the alkaline solution pressure when supplying alkaline solution in real time. When it is monitored that the deionized water pressure supplied to each dual-use electrolyzer test system exceeds the first pressure threshold, the twelfth valve 121 is closed to stop supplying deionized water to each dual-use electrolyzer test system. When it is monitored that the alkaline solution pressure supplied to each dual-use electrolyzer test system exceeds the second pressure threshold, the thirteenth valve 131 is closed to stop supplying alkaline solution to each dual-use electrolyzer test system, thereby realizing overpressure emergency stop protection when the flow resistance is abnormally large, thereby ensuring the safety of test personnel and equipment.

[0148] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0149] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A dual-purpose electrolytic cell testing system, characterized in that: It includes a deionized water supply module, an alkaline solution supply module, a deionized water supply module, an alkaline solution supply module, an anode inlet control module, a cathode inlet control module, an anode discharge module, a cathode discharge module and a DC power supply module; The power supply interface of the DC power supply module is connected to the power supply interface of the test electrolytic cell; the DC power supply module is used to provide a DC power supply to the test electrolytic cell during the electrolytic cell test process of the test electrolytic cell; The first outlet of the deionized water replenishment module is communicated with the first inlet of the deionized water supply module, and the second outlet of the deionized water replenishment module is communicated with the first inlet of the alkaline solution supply module; the deionized water replenishment module is used to replenish deionized water to the deionized water supply module when the test electrolyzer is a PEM electrolyzer, and to replenish deionized water to the alkaline solution supply module when the test electrolyzer is an alkaline electrolyzer; The outlet of the alkaline solution replenishment module is connected to the second inlet of the alkaline solution supply module; the alkaline solution replenishment module is used to replenish the alkaline solution to the alkaline solution supply module when the test electrolytic cell is an alkaline electrolytic cell; The first inlet of the anode inlet control module is communicated with the first outlet of the deionized water supply module, the second inlet of the anode inlet control module is communicated with the first outlet of the alkaline solution supply module, and the outlet of the anode inlet control module is communicated with the anode inlet of the test electrolytic cell; the anode inlet control module is used to connect the first outlet of the deionized water supply module with the anode inlet of the test electrolytic cell when the test electrolytic cell is a PEM electrolytic cell so that the deionized water in the deionized water supply module flows into the anode of the test electrolytic cell, and to connect the first outlet of the alkaline solution supply module with the anode inlet of the test electrolytic cell when the test electrolytic cell is an alkaline electrolytic cell so that the alkaline solution in the alkaline solution supply module flows into the anode of the test electrolytic cell; The inlet of the cathode inlet control module is connected to the outlet of the anode inlet control module, and the outlet of the cathode inlet control module is connected to the cathode inlet of the test electrolytic cell; the cathode inlet control module is used to connect the outlet of the anode inlet control module and the cathode inlet of the test electrolytic cell when the test electrolytic cell is an alkaline electrolytic cell, so that the alkaline solution in the alkaline solution supply module flows into the cathode of the test electrolytic cell via the cathode inlet control module; The inlet of the anode discharge module is connected to the anode outlet of the test electrolytic cell; the anode discharge module is used to discharge the oxygen generated by the anode of the test electrolytic cell during the electrolytic cell test; The inlet of the cathode emission module is connected to the cathode outlet of the test electrolytic cell; the cathode emission module is used to discharge the hydrogen generated by the cathode of the test electrolytic cell during the electrolytic cell test.

2. The dual-purpose electrolytic cell testing system according to claim 1, characterized in that: The cathode exhaust module includes a cathode exhaust and drainage module, a first alkaline solution recovery module, a hydrogen exhaust pipeline and a cathode drainage pipeline; The inlet of the cathode exhaust and drainage module is communicated with the cathode outlet of the test electrolyzer, the first outlet of the cathode exhaust and drainage module is communicated with the hydrogen exhaust pipeline, the second outlet of the cathode exhaust and drainage module is communicated with the cathode drainage pipeline, and the third outlet of the cathode exhaust and drainage module is communicated with the inlet of the first alkaline solution recovery module; the cathode exhaust and drainage module is used for, when the test electrolyzer is a PEM electrolyzer, separating the hydrogen and water vapor discharged from the cathode outlet of the test electrolyzer into gas-liquid state and discharging them to the hydrogen exhaust pipeline and the cathode drainage pipeline respectively; when the test electrolyzer is an alkaline electrolyzer, separating the hydrogen and unreacted alkaline solution discharged from the cathode outlet of the test electrolyzer into gas-liquid state and discharging them to the hydrogen exhaust pipeline and the first alkaline solution recovery module respectively; The outlet of the first alkaline solution recovery module is connected to the third inlet of the alkaline solution supply module; the first alkaline solution recovery module is used to return the unreacted alkaline solution discharged from the third outlet of the cathode exhaust and drainage module to the alkaline solution supply module when the test electrolytic cell is an alkaline electrolytic cell.

3. The dual-purpose electrolytic cell testing system according to claim 2, characterized in that: The anode emission module includes a first anode emission control module, a second anode emission control module, an anode exhaust drainage module, a second alkaline solution recovery module, an oxygen exhaust pipeline and an anode drainage pipeline; The inlet of the first anode emission control module is in communication with the anode outlet of the test electrolyzer, the first outlet of the first anode emission control module is in communication with the second inlet of the deionized water supply module, and the second outlet of the first anode emission control module is in communication with the first inlet of the anode exhaust drainage module; the first anode emission control module is used to connect the anode outlet of the test electrolyzer with the second inlet of the deionized water supply module when the test electrolyzer is a PEM electrolyzer so that the oxygen and unreacted deionized water discharged from the anode outlet of the test electrolyzer flow back to the deionized water supply module, and to connect the anode outlet of the test electrolyzer with the first inlet of the anode exhaust drainage module when the test electrolyzer is an alkaline electrolyzer so that the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer are discharged to the anode exhaust drainage module; The inlet of the second anode emission control module is communicated with the second outlet of the deionized water supply module, and the outlet of the second anode emission control module is communicated with the second inlet of the anode exhaust drainage module; the second anode emission control module is used to connect the second outlet of the deionized water supply module and the second inlet of the anode exhaust drainage module when the test electrolyzer is a PEM electrolyzer so that oxygen and water vapor in the deionized water supply module are discharged to the anode exhaust drainage module; The first outlet of the anode exhaust and drainage module is in communication with the oxygen exhaust pipeline, the second outlet of the anode exhaust and drainage module is in communication with the anode drainage pipeline, and the third outlet of the anode exhaust and drainage module is in communication with the inlet of the second alkaline solution recovery module; the anode exhaust and drainage module is used for, when the test electrolyzer is a PEM electrolyzer, separating the oxygen and water vapor in the deionized water supply module discharged from the outlet of the second anode emission control module into gas-liquid state, and discharging them to the oxygen exhaust pipeline and the anode drainage pipeline respectively; when the test electrolyzer is an alkaline electrolyzer, separating the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer into gas-liquid state, and discharging them to the oxygen exhaust pipeline and the second alkaline solution recovery module respectively; The outlet of the second alkaline solution recovery module is connected to the third inlet of the alkaline solution supply module; the second alkaline solution recovery module is used to return the unreacted alkaline solution discharged from the second outlet of the anode exhaust drainage module to the alkaline solution supply module when the test electrolytic cell is an alkaline electrolytic cell.

4. The dual-purpose electrolytic cell testing system according to claim 3, characterized in that: The first anode emission control module includes a first three-way valve; The inlet of the first three-way valve is communicated with the anode outlet of the test electrolyzer, the first outlet of the first three-way valve is communicated with the second inlet of the deionized water supply module, and the second outlet of the first three-way valve is communicated with the first inlet of the anode exhaust and drainage module; the first three-way valve is used to connect the anode outlet of the test electrolyzer with the second inlet of the deionized water supply module when the test electrolyzer is a PEM electrolyzer so that the oxygen and unreacted deionized water discharged from the anode outlet of the test electrolyzer can flow back to the deionized water supply module, and to connect the anode outlet of the test electrolyzer with the first inlet of the anode exhaust and drainage module when the test electrolyzer is an alkaline electrolyzer so that the oxygen and unreacted alkaline solution discharged from the anode outlet of the test electrolyzer can be discharged to the anode exhaust and drainage module.

5. The dual-purpose electrolytic cell testing system according to claim 3, characterized in that: The deionized water supply module includes a water tank and a water pump; The first inlet of the water tank is communicated with the first outlet of the deionized water replenishment module, the first outlet of the water tank is communicated with the inlet of the water pump, the second inlet of the water tank is communicated with the first outlet of the first anode emission control module, and the second outlet of the water tank is communicated with the inlet of the second anode emission control module; the water tank is used to receive and store the deionized water replenished by the deionized water replenishment module and the unreacted deionized water discharged from the anode outlet of the test electrolyzer during the electrolyzer test when the test electrolyzer is a PEM electrolyzer; The outlet of the water pump is connected to the first inlet of the anode inlet control module; the water pump is used to extract deionized water from the water tank and output it to the anode inlet control module when the test electrolyzer is a PEM electrolyzer.

6. The dual-purpose electrolytic cell testing system according to claim 3, characterized in that: The alkaline solution supply module includes an alkaline solution tank and an alkaline solution pump; The first inlet of the alkaline solution tank is communicated with the second outlet of the deionized water replenishment module, the second inlet of the alkaline solution tank is communicated with the outlet of the alkaline solution replenishment module, the third inlet of the alkaline solution tank is communicated with the outlet of the first alkaline solution recovery module and the outlet of the second alkaline solution recovery module respectively, and the first outlet of the alkaline solution tank is communicated with the inlet of the alkaline solution pump; the alkaline solution tank is used for receiving and storing the deionized water replenished by the deionized water replenishment module and the alkaline solution replenished by the alkaline solution replenishment module when the test electrolytic cell is an alkaline electrolytic cell, as well as the unreacted alkaline solution discharged from the anode outlet of the test electrolytic cell recovered by the second alkaline solution recovery module during the electrolytic cell test and the unreacted alkaline solution discharged from the cathode outlet of the test electrolytic cell recovered by the first alkaline solution recovery module; The outlet of the alkaline solution pump is connected to the second inlet of the anode inlet control module; the alkaline solution pump is used to extract alkaline solution from the alkaline solution tank and output it to the anode inlet control module when the test electrolytic cell is an alkaline electrolytic cell.

7. The dual-purpose electrolytic cell testing system according to any one of claims 1 to 6, characterized in that: The anode inlet control module includes a second three-way valve; The first inlet of the second three-way valve is communicated with the first outlet of the deionized water supply module, the second inlet of the second three-way valve is communicated with the first outlet of the alkaline solution supply module, and the outlet of the second three-way valve is communicated with the anode inlet of the test electrolytic cell; the second three-way valve is used to connect the first outlet of the deionized water supply module and the anode inlet of the test electrolytic cell when the test electrolytic cell is a PEM electrolytic cell so that the deionized water in the deionized water supply module flows into the anode of the test electrolytic cell, and to connect the first outlet of the alkaline solution supply module and the anode inlet of the test electrolytic cell when the test electrolytic cell is an alkaline electrolytic cell so that the alkaline solution in the alkaline solution supply module flows into the anode of the test electrolytic cell.

8. The dual-purpose electrolytic cell testing system according to any one of claims 1 to 6, characterized in that: The cathode inlet control module includes a first valve; The inlet of the first valve is connected to the outlet of the anode inlet control module, and the outlet of the first valve is connected to the cathode inlet of the test electrolytic cell; the first valve is used to open when the test electrolytic cell is an alkaline electrolytic cell, so that the alkaline solution in the alkaline solution supply module flows into the cathode of the test electrolytic cell via the anode inlet control module.

9. The dual-purpose electrolytic cell testing system according to any one of claims 1 to 6, characterized in that: The deionized water supply module includes a second valve and a third valve; The inlet of the second valve is communicated with the deionized water supply pipeline, and the outlet of the second valve is communicated with the first inlet of the deionized water supply module; the second valve is used to open when the test electrolyzer is a PEM electrolyzer to supply deionized water to the deionized water supply module; The inlet of the third valve is connected to the deionized water supply pipeline, and the outlet of the third valve is connected to the first inlet of the alkaline solution supply module; the third valve is used to open when the test electrolytic cell is an alkaline electrolytic cell to supply deionized water to the alkaline solution supply module.

10. A multi-channel dual-use electrolytic cell testing system, characterized in that: The invention comprises at least two dual-purpose electrolyzer test systems as described in any one of claims 1 to 9 connected in parallel; wherein the deionized water supply modules of each of the dual-purpose electrolyzer test systems are connected in parallel and the alkaline solution supply modules of each of the dual-purpose electrolyzer test systems are connected in parallel.

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