CN-224202705-U - Device for detecting performance of microporous flow channel of bipolar plate of electrolytic tank

CN224202705UCN 224202705 UCN224202705 UCN 224202705UCN-224202705-U

Abstract

The utility model discloses a device for detecting the performance of a microporous runner of an electrolytic tank bipolar plate, which is characterized in that a bipolar plate assembly is arranged on a bottom plate, a cover plate is arranged on the top of the bipolar plate assembly, the cover plate is made of transparent materials, a separation plate is arranged between two adjacent bipolar plates, air flow simulation units are arranged on one sides of the separation plate and the cover plate, which face the bipolar plate positioned below the separation plate, and can provide air flow for the anode side of the corresponding bipolar plate through the air flow simulation units, a jet flow form detection unit and a jet flow height detection unit are respectively used for detecting jet flow forms and jet flow heights of jet flows formed on the bipolar plate positioned below the cover plate, and a jet flow pressure detection unit is used for detecting impact acting forces of the jet flows formed on the bipolar plate positioned below the separation plate. By simulating the real working condition of the bipolar plate, the performance of the microporous flow channel under different design parameters can be fed back more truly, and reliable guarantee is provided for optimizing the design parameters of the microporous flow channel.

Inventors

HU WENYU
WANG MENGLI
ZHANG ZHANQUAN
HU FEI
WU HAOMIN

Assignees

鄂尔多斯市新能源研究应用有限公司

Dates

Publication Date: 20260505
Application Date: 20260330

Claims (10)

1. The device for detecting the performance of the microporous flow channel of the bipolar plate of the electrolytic tank is characterized by being used for simulating and detecting the performance of the bipolar plate in a bipolar plate assembly, wherein the bipolar plate assembly comprises a plurality of bipolar plates which are arranged in a stacked mode, a microporous flow channel network is arranged on the anode side of the bipolar plate and used for forming jet flow emitted from a jet hole on the anode side, and the device comprises: a base plate on which the bipolar plate assembly is disposed; The cover plate is arranged at the top of the bipolar plate assembly, the anode sides of the bipolar plates are arranged towards the side where the cover plate is positioned, and the cover plate is made of transparent materials; The separator is arranged between two adjacent bipolar plates, one sides of the separator and the cover plate facing the bipolar plates below the separator and the cover plate are respectively provided with an air flow simulation unit, and air flow can be provided for the anode side of the corresponding bipolar plate through the air flow simulation units The jet flow form detection unit and the jet flow height detection unit are respectively used for detecting the jet flow form and the jet flow height of jet flow formed on the bipolar plate below the cover plate; And the jet pressure detection unit is used for detecting the impact acting force of jet formed on the bipolar plate below the jet pressure detection unit.
2. The device for detecting the performance of the microporous flow channel of the bipolar plate of the electrolytic cell according to claim 1, wherein the gas flow simulation unit comprises a gas flow channel and a gas channel, the gas flow channel corresponds to the anode side active area, one end of the gas channel is communicated with the gas flow channel, and gas flow can be provided in the gas flow channel through the gas channel.
3. The device for detecting the performance of the microporous flow channel of the bipolar plate of the electrolytic tank according to claim 2, wherein the airflow simulation unit comprises an airflow corridor, the airflow corridor is positioned in the middle of the airflow channel and divides the airflow channel into a left part and a right part, a comb-tooth split baffle is arranged between the airflow corridor and the airflow channel, a plurality of split openings are arranged on the comb-tooth split baffle at intervals, and the air channel is communicated with the airflow corridor, so that air can enter the airflow corridor through the air channel and flow into the airflow channels positioned on two sides of the airflow corridor through the split openings.
4. A bipolar plate microporous flow passage performance detection apparatus for an electrolytic cell according to claim 3, wherein gas passages are provided at both ends of the gas flow passage, respectively, through which gas flows are provided from both ends of the gas flow passage into the gas flow passage, respectively.
5. The device for detecting the performance of the micro-pore flow channel of the bipolar plate of the electrolytic tank according to any one of claims 1 to 4, wherein the jet flow height detection unit comprises a laser displacement sensor array arranged above the cover plate, and the laser displacement sensors in the laser displacement sensor array are respectively arranged at positions corresponding to jet holes to be detected.
6. The device for detecting the performance of a microporous flow channel of an electrolytic cell bipolar plate according to any one of claims 1 to 4, wherein the jet pressure detection unit comprises a pressure sensitive membrane arranged on a separator, and the pressure sensitive membrane is arranged opposite to an anode side of a bipolar plate arranged below the pressure sensitive membrane.
7. The device for detecting the performance of the microporous flow channel of the bipolar plate of the electrolytic cell according to any one of claims 1 to 4, wherein the jet flow morphology detection unit comprises a camera arranged above a cover plate.
8. The device for detecting the performance of the microporous flow channel of the bipolar plate of the electrolytic cell according to claim 7, wherein a background light source is arranged outside the cover plate and is used for providing background light for shooting jet flow.
9. The device for detecting the performance of the microporous flow channel of the bipolar plate of the electrolytic tank according to claim 1, wherein the cover plate is provided with a water inlet channel communicated with the water inlet of the bipolar plate and a water outlet channel communicated with the water outlet of the bipolar plate.
10. The electrolyzer bipolar plate microchannel performance test apparatus of claim 1, further comprising a water supply system for supplying water to the bipolar plate assembly and a gas supply system for providing gas flow required for testing to the gas flow simulation unit.

Description

Device for detecting performance of microporous flow channel of bipolar plate of electrolytic tank Technical Field The utility model belongs to the technical field of hydrogen production by an electrolytic cell, and particularly relates to a device for detecting the performance of a microporous flow channel of a bipolar plate of the electrolytic cell. Background The technology for producing hydrogen by electrolyzing water through PEM (Proton Exchange Membrane ) utilizes a polymer electrolyte membrane to decompose water into hydrogen and oxygen, and has the advantages of high efficiency, compact design, quick response and the like. PEM electrolyzed water to produce hydrogen bipolar plates are an important component of proton exchange membrane electrolyzers for supporting current transport and water electrolysis reactions. They are typically made of titanium alloys or other corrosion resistant metallic materials with good electrical conductivity and mechanical strength. Patent document CN223738158U discloses an electrolyzer bipolar plate with a microporous flow channel and an electrolyzer, wherein the bipolar plate is provided with a microporous flow channel network on the surface of the anode side, and a large number of jet holes distributed on the microporous flow channel network are used for jetting water flow towards a membrane electrode unit, so that the hydrogen production efficiency of the bipolar plate is improved. The design structure and design parameters of the microporous flow channel network on the bipolar plate directly influence the hydrogen production capacity and the processing performance of the bipolar plate, so that the microporous flow channel performance of the bipolar plate needs to be reliably detected in the structural design process. Disclosure of utility model The utility model aims to provide a device for detecting the performance of a microporous flow channel of an electrolytic tank bipolar plate so as to realize reliable detection of the performance of the microporous flow channel on the bipolar plate. The utility model is realized by the following technical scheme: The utility model provides an electrolysis trough bipolar plate micropore runner performance detection device for bipolar plate performance's simulation detects in bipolar plate subassembly, bipolar plate subassembly is including being a plurality of bipolar plates of range upon range of setting, is provided with micropore runner network in the positive pole side of bipolar plate for form the efflux that jets out from the efflux hole in the positive pole side, be provided with the gas circulation network in the negative pole side of bipolar plate, be used for the water conservancy diversion of hydrogen, include: a base plate on which the bipolar plate assembly is disposed; The cover plate is arranged at the top of the bipolar plate assembly, the anode sides of the bipolar plates are arranged towards the side where the cover plate is positioned, and the cover plate is made of transparent materials; The separator is arranged between two adjacent bipolar plates, one sides of the separator and the cover plate facing the bipolar plates below the separator and the cover plate are respectively provided with an air flow simulation unit, and air flow can be provided for the anode side of the corresponding bipolar plate through the air flow simulation units The jet flow form detection unit and the jet flow height detection unit are respectively used for detecting the jet flow form and the jet flow height of jet flow formed on the bipolar plate below the cover plate; And the jet pressure detection unit is used for detecting the impact acting force of jet formed on the bipolar plate below the jet pressure detection unit. In some embodiments, the gas flow simulation unit includes a gas flow groove corresponding to the anode-side active region, and a gas channel having one end in communication with the gas flow groove, through which a gas flow can be provided into the gas flow groove. In some embodiments, the airflow simulation unit includes an airflow corridor, the airflow corridor is located in the middle of the airflow trough and divides the airflow trough into a left part and a right part, a comb-tooth split-flow partition plate is arranged between the airflow corridor and the airflow trough, a plurality of split-flow ports are arranged on the comb-tooth split-flow partition plate at intervals, and the airflow corridor is communicated with the airflow corridor, so that gas can enter the airflow corridor through the airflow corridor and flow into the airflow troughs located on two sides of the airflow corridor through the split-flow ports. In some embodiments, gas passages are provided at each end of the gas flow gallery through which gas flow is provided from each end of the gas flow gallery into the gas flow gallery. In some embodiments, the jet height detection unit includes a laser displacement sensor array disposed above th