CN-224216454-U - Pressure-resistant testing device for diaphragm

CN224216454UCN 224216454 UCN224216454 UCN 224216454UCN-224216454-U

Abstract

The utility model discloses a diaphragm pressure-resistant testing device which comprises two end pressing plates, two supporting separation nets and two electrodes which are symmetrically arranged, wherein a first groove is formed in one side, opposite to the end pressing plates, of each end pressing plate, the supporting separation nets are accommodated in the first groove, the two electrodes are respectively positioned on one side, opposite to the supporting separation nets, of each end pressing plate, a testing diaphragm is positioned between the two electrodes, the two end pressing plates are pressed through locking pieces to form an electrolysis cell, edges of the testing diaphragm are pressed, two pipe joints are arranged on the end pressing plates, the two pipe joints are communicated with the first groove, one pipe joint is used for injecting electrolyte, the other pipe joint is used for discharging electrolyte, and a glass window is formed in the middle of the end pressing plates. The utility model can accurately judge the air-repellent hydrophilic performance of the test diaphragm, is convenient for screening out the diaphragm with good pressure resistance, and improves the operation safety and stability of the electrolytic tank.

Inventors

LV GUOAI
CHEN YOUXIAO
LIU XIAOHAN
WU XINGBING
YAN MI

Assignees

中集集电(广东)科技发展有限公司
中集海洋工程有限公司

Dates

Publication Date: 20260508
Application Date: 20250414

Claims (10)

1. The utility model provides a withstand voltage testing arrangement of diaphragm, its characterized in that includes two end pressboards, two support that symmetrical arrangement separates net and two electrodes, two opposite one side of end pressboard all is provided with first recess, first recess holding support separates the net, two the electrode is located respectively at two opposite one side of supporting separates the net, test diaphragm is located two between the electrode, two the end pressboard passes through the retaining member pressfitting and forms the electrolysis cell to compress tightly the edge of test diaphragm, be provided with two coupling on the end pressboard, two coupling all with first recess intercommunication, one of them coupling is used for injecting electrolyte, another one the coupling is used for discharging electrolyte, the edge of end pressboard is provided with first screw hole, first screw hole is used for external cable, the middle part of end pressboard is provided with glass mounting hole, glass mounting hole with first recess intercommunication, glass window is installed to the glass mounting hole.
2. The pressure-resistant diaphragm testing device according to claim 1, wherein the end pressure plate and the glass window are sealed through a sealing ring, a sealing groove is formed in the side wall of the glass mounting hole, and the sealing groove is used for mounting the sealing ring.
3. The pressure resistance testing device for diaphragms according to claim 2, wherein the number of the sealing rings and the number of the sealing grooves are two.
4. The diaphragm pressure resistance testing device according to claim 1, wherein a glass pressing ring is connected to an end face of the end pressing plate away from the first groove, and the glass pressing ring is used for fixing the glass window.
5. The diaphragm pressure-resistant testing device according to claim 4, wherein the glass pressure ring is mounted on the end face of the end pressure plate through a plurality of first bolts, a plurality of second threaded holes are formed in the end pressure plate, the glass pressure ring is provided with a plurality of first through holes, the first through holes correspond to the second threaded holes one by one, the first through holes accommodate threaded rods of the first bolts to penetrate, and the second threaded holes are in threaded connection with the first bolts.
6. The diaphragm pressure-resistant testing device according to claim 1, wherein a plurality of second through holes are formed in the edge of the end pressing plate, the locking piece comprises a plurality of second bolts and nuts, and the screws of the second bolts sequentially penetrate through the corresponding second through holes in the two end pressing plates and are in threaded connection with the nuts.
7. The pressure resistance testing device for diaphragms according to claim 1, wherein a sealing gasket is arranged between the two end pressure plates.
8. The pressure resistance testing device for diaphragms according to claim 7, wherein the contact surface of the end pressure plate and the sealing gasket is provided with a water line.
9. The pressure resistance testing device for diaphragms according to claim 1, wherein one end face of one of the end pressing plates is provided with a second groove, and the second groove accommodates a testing diaphragm.
10. The device of claim 1, wherein the end pressure plate, the support spacer and the electrode are circular structures.

Description

Pressure-resistant testing device for diaphragm Technical Field The utility model relates to the technical field of detection equipment, in particular to a diaphragm pressure-resistant testing device. Background When the hydrogen energy is widely applied to the fields of traffic, steelmaking, chemical industry, electric power, heat supply and the like, the hydrogen production is the root of various hydrogen energy application approaches, and the water electrolysis hydrogen production technology is the most important mode for constructing an electric hydrogen energy structure power-assisted new energy to realize large-scale conversion and utilization. Alkaline electrolysis technology is the most mature technology in the field of water electrolysis at present. The basic principle of hydrogen production is that under the action of current, water is decomposed into hydrogen and oxygen through electrochemical reaction, and then the hydrogen and the oxygen are separated out at the cathode and the anode of an electrolytic tank respectively. In the alkaline water electrolysis hydrogen production technology, a diaphragm is one of core components, and the performance of the diaphragm directly determines the efficiency, the safety and the service life of the electrolytic tank. The primary function of the membrane is to physically isolate the cathodic (hydrogen evolution reaction) and anodic (oxygen evolution reaction) regions, preventing the risk of explosion caused by mixing of hydrogen and oxygen, while allowing free migration of hydroxyl ions under the action of an electric field to complete the current loop. Along with the application of hydrogen energy in new scenes such as traffic (hydrogen fuel cell vehicles), energy storage (wind-solar hydrogen production coupling) and the like, the electrolytic tank is required to be upgraded to a high current density and a rapid start-stop direction, the pore structure and the mechanical strength of the diaphragm material are required to be further optimized, and the upgrading and upgrading of the diaphragm are aggravated, so that the diaphragm is required to be rapidly detected. However, the existing detecting instrument cannot observe the test diaphragm during detection, so that an operator is difficult to judge the performance of the test diaphragm. Disclosure of utility model In order to overcome the defects of the prior art, the utility model provides the diaphragm pressure-resistant testing device which can accurately judge the air-repellent hydrophilic performance of the tested diaphragm, is convenient for screening out the diaphragm with good pressure-resistant performance, and improves the safety and stability of the operation of the electrolytic cell. The technical scheme adopted for solving the technical problems is as follows: The utility model provides a withstand voltage testing arrangement of diaphragm, includes two end pressboards, two support that the end pressboards separates net and two electrodes of symmetrical arrangement, two opposite one side of end pressboards all is provided with first recess, first recess holding support separates net, two the electrode is located respectively at two opposite one side of supporting separates net, test diaphragm is located two between the electrode, two end pressboards pass through the retaining member pressfitting and form electrolysis cell to compress tightly the edge of test diaphragm, be provided with two coupling on the end pressboards, two coupling all with first recess intercommunication, one of them coupling is used for injecting electrolyte, another one the coupling is used for discharging electrolyte, the edge of end pressboards is provided with first screw hole, first screw hole is used for external cable, the middle part of end pressboards is provided with the glass mounting hole, the glass mounting hole with first recess intercommunication, the glass window is installed to the glass mounting hole. As a further improvement of the technical scheme, the end pressing plate is sealed with the glass window through a sealing ring, a sealing groove is formed in the side wall of the glass mounting hole, and the sealing groove is used for mounting the sealing ring. As a further improvement of the technical scheme, the number of the sealing rings and the number of the sealing grooves are two. As a further improvement of the technical scheme, a glass pressing ring is connected to one end face, far away from the first groove, of the end pressing plate, and the glass pressing ring is used for fixing the glass window. As a further improvement of the technical scheme, the glass pressing ring is installed on the end face of the end pressing plate through a plurality of first bolts, a plurality of second threaded holes are formed in the end pressing plate, the glass pressing ring is provided with a plurality of first through holes, the first through holes correspond to the second threaded holes one by one, the first throu