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CN-121977769-A - Airtight detection jig for PEM (PEM) electrolytic tank

CN121977769ACN 121977769 ACN121977769 ACN 121977769ACN-121977769-A

Abstract

The invention discloses an airtight detection jig for a PEM (PEM) electrolytic tank, which relates to the technical field of airtight tests and comprises a clamping installation piece, wherein a pushing part is arranged on the clamping installation piece, a pressure test part is arranged on the pushing part, the pressure test part is used for airtight detection and pressure supply, a leakage point detection piece is arranged on the clamping installation piece, a closed detection piece is arranged on the leakage point detection piece, the closed detection piece is used for guaranteeing airtight detection precision, an anti-interference piece is arranged on the clamping installation piece, the leakage point detection piece is used for facilitating staff to rapidly detect the tightness of a plurality of groups of rubber interlayer and metal interlayer on the electrolytic tank main body, and a plurality of groups of rubber interlayer of the electrolytic tank main body can be detected one by one, so that the leakage point detection time is effectively shortened, and the problems that the existing electrolytic tank airtight detection jig is difficult to rapidly detect the tightness between each rubber interlayer and the metal interlayer, and meanwhile, the scattered helium for pressure test is easy to interfere with the detection work are solved.

Inventors

  • YANG YONGZHI
  • Zhu Minfan

Assignees

  • 常州兴燃科技有限公司

Dates

Publication Date
20260505
Application Date
20260408

Claims (10)

  1. 1. The airtight detection jig for the PEM electrolytic tank comprises a clamping installation piece (1), wherein a pushing part (2) is arranged on the clamping installation piece (1), and the airtight detection jig is characterized in that a pressure test part (3) is arranged on the pushing part (2), and the pressure test part (3) is used for airtight detection of pressure supply; The clamping installation piece (1) is provided with a leakage point checking piece (4), the leakage point checking piece (4) is provided with a closed detection piece (5), and the closed detection piece (5) is used for guaranteeing airtight detection precision; an anti-interference piece (6) is arranged on the clamping installation piece (1), and the anti-interference piece (6) is connected to the leakage point checking piece (4); The clamping installation piece (1) comprises a clamping installation plate (101), and two supporting frames (102) are fixedly installed on the clamping installation plate (101) through bolts.
  2. 2. The tightness detection jig for the PEM electrolyzer is characterized in that the clamping mounting piece (1) further comprises an electrolyzer main body (104), a fixed stop block (103) is fixedly arranged on the clamping mounting plate (101), and the electrolyzer main body (104) is inserted into the two supporting frames (102).
  3. 3. The PEM electrolyzer airtight detection jig is characterized in that the pushing part (2) comprises an electric push rod (201), two electric push rods (201) are fixedly installed on the clamping installation plate (101), a pushing block (202) is fixedly installed on an output shaft of the two electric push rods (201), the pushing block (202) is located above the clamping installation plate (101), two sealing plugs (203) are fixedly installed on the pushing block (202), the two sealing plugs (203) are respectively used for sealing a hydrogen outlet and an oxygen outlet of the electrolyzer main body (104), a positioning shaft (204) is connected to the pushing block (202) in a sliding mode, a positioning tension spring (205) is sleeved on the outer side of the positioning shaft (204), one end of the positioning tension spring (205) is fixedly connected to the pushing block (202), and the other end of the positioning tension spring (205) is fixedly connected to the positioning shaft (204).
  4. 4. The airtight detection jig for the PEM electrolytic cell is characterized in that the pressure test part (3) comprises a pressure test tube (301), the pressure test tube (301) is connected to a pushing block (202) in a sliding mode, a sliding strip (3011) is fixedly arranged on the pressure test tube (301), the sliding strip (3011) is arranged on the pushing block (202) in a sliding mode, the pressure test tube (301) is used for being inserted into a water inlet of the electrolytic cell main body (104), two insertion holes are formed in the sliding strip (3011), and the two insertion holes formed in the sliding strip (3011) are aligned with a positioning shaft (204).
  5. 5. The tightness detection jig for the PEM electrolytic tank is characterized in that the pressure test part (3) further comprises a barometer (302), the barometer (302) is fixedly arranged on the pressure test tube (301), and the pressure test tube (301) is externally connected with a helium booster pump through a hose.
  6. 6. The PEM electrolyzer airtight detection jig is characterized in that the leakage point detection component (4) comprises a detection installation shell (401) and a butt joint shell (4011), wherein the detection installation shell (401) and the butt joint shell (4011) are respectively located above a clamping installation plate (101), grooves are respectively formed in the inner sides of the detection installation shell (401) and the butt joint shell (4011), clamping plates (4012) are respectively and fixedly installed in the grooves in the inner sides of the detection installation shell (401) and the butt joint shell (4011), the two clamping plates (4012) are used for positioning metal interlayers on a clamping electrolyzer main body (104), two plug-in columns (402) are fixedly installed on the detection installation shell (401), the ends of the two plug-in columns (402) are chamfered, two plug-in columns (4011) are respectively arranged on the butt joint shell (101), the two plug-in holes in the butt joint shell (4011), the detection installation shell (401) and the inner sides of the butt joint shell (4011) are respectively fixedly provided with clamping plates (4012), the two clamping plates (403) are respectively attached to the grooves in the inner sides of the detection installation shell (401) and the butt joint shell (4011), the two clamping plates (403) are respectively attached to the two sealing rubber interlayers (403) and are respectively located on the two sealing rubber interlayers (403) and are respectively attached to the two sealing rubber interlayers (403).
  7. 7. The airtight detection jig for the PEM electrolytic tank, as set forth in claim 6, is characterized in that the leakage point inspection piece (4) further comprises a helium detector (404), the helium detector (404) is fixedly installed on the clamping installation plate (101), an air inlet hose of the helium detector (404) is inserted into the inspection installation shell (401), and an air inlet hose of the helium detector (404) is communicated with the inner side of the inspection installation shell (401).
  8. 8. The tightness detection jig for PEM electrolytic cells according to claim 6 wherein said closing detection member (5) comprises a switch frame (501), and said butt-joint case (4011) is fixedly provided with the switch frame (501) by bolts.
  9. 9. The tightness detection jig for the PEM electrolytic tank according to claim 8, wherein the sealing detection piece (5) further comprises a sealing switch (502), the sealing switch (502) is fixedly installed on the switch frame (501), the sealing switch (502) penetrates through the switch frame (501), and the sealing switch (502) is used for being extruded by the lower plug-in column (402).
  10. 10. The airtight detection jig for the PEM electrolytic tank, which is disclosed in claim 9, is characterized in that the anti-interference piece (6) comprises an electric fan (601), the electric fan (601) is fixedly arranged on a clamping mounting plate (101), an air duct (602) is fixedly arranged on an air outlet pipe of the electric fan (601), the end part of the air duct (602) is fixedly arranged on a butt joint shell (4011), a one-way valve (603) is arranged on the air duct (602), and the electric fan (601) is electrically connected with a closed switch (502).

Description

Airtight detection jig for PEM (PEM) electrolytic tank Technical Field The invention relates to the technical field of airtight tests, in particular to an airtight detection jig for a PEM (PEM) electrolytic tank. Background The proton exchange membrane electrolyzer is core equipment for producing hydrogen by electrolyzing water, the proton exchange membrane is used as core electrolyte, pure water is decomposed into high-purity hydrogen and oxygen through electric energy, the characteristics of high efficiency, high pressure direct discharge, small and flexible volume and the like become one of main flow technologies for preparing green hydrogen, the tightness test of the PEM electrolyzer directly influences indexes such as safety and the like, after the PEM electrolyzer is stably clamped by a special jig, the safety helium is usually required to be adopted for pressure test, the conventional electrolyzer tightness test jig usually needs to be manually abutted to a pressure test pipeline, the operation is complicated, through-flow resistance test cannot be conveniently carried out on the electrolyzer, when the inside of the electrolyzer is blocked and the like, the subsequent tightness test precision can be influenced by the direct pressure test, meanwhile, the electrolyzer is of a laminated structure of a metal interlayer and a rubber interlayer, leakage fault usually occurs at the rubber interlayer part, but the tightness between each rubber interlayer and the metal interlayer is difficult to be quickly checked manually, and helium gas on the periphery of the electrolyzer also easily interferes with the helium detector to check the leakage point when the electrolyzer leaks, and further influences the leakage point checking of the helium detector. Therefore, the invention provides an airtight detection jig for a PEM (PEM) electrolytic tank. Disclosure of Invention The invention aims to provide a PEM (PEM) electrolytic cell airtight detection jig, which aims to solve the problems that the conventional electrolytic cell airtight detection jig provided in the background art is difficult to quickly check the tightness between each rubber interlayer and each metal interlayer, and meanwhile, the dissipated helium for pressure test is easy to interfere with the checking work. In order to achieve the aim, the invention provides the technical scheme that the PEM electrolytic cell airtight detection jig comprises a clamping installation piece, wherein a pushing part is arranged on the clamping installation piece, and a pressure test part is arranged on the pushing part; The clamping installation piece is provided with a leakage point checking piece, and the leakage point checking piece is provided with a closed detection piece which is used for guaranteeing the airtight detection precision; The clamping installation piece is provided with an anti-interference piece which is connected to the leakage point checking piece; the clamping installation piece comprises a clamping installation plate, and two supporting frames are fixedly installed on the clamping installation plate through bolts. Preferably, the clamping mounting piece further comprises an electrolytic tank main body, a fixed stop block is fixedly mounted on the clamping mounting plate, and the electrolytic tank main body is spliced on the two supporting frames. The pushing part comprises an electric push rod, wherein two electric push rods are fixedly arranged on the clamping mounting plate, pushing blocks are fixedly arranged on output shafts of the two electric push rods and are positioned above the clamping mounting plate, two sealing plugs are fixedly arranged on the pushing blocks and are respectively used for sealing a hydrogen gas outlet and an oxygen gas outlet of the electrolytic tank main body, a positioning shaft is slidably inserted on the pushing blocks, a positioning tension spring is sleeved on the outer side of the positioning shaft, one end of each positioning tension spring is fixedly connected to the pushing block, and the other end of each positioning tension spring is fixedly connected to the positioning shaft. The pressure test part comprises a pressure test tube which is in sliding connection with the pushing block, a sliding strip is fixedly arranged on the pressure test tube and is in sliding connection with the pushing block, the pressure test tube is used for being inserted into a water inlet of the electrolytic tank main body, two insertion holes are formed in the sliding strip, and the two insertion holes formed in the sliding strip are aligned with the positioning shaft. Preferably, the pressure test part further comprises a barometer, wherein the barometer is fixedly arranged on the pressure test tube, and the pressure test tube is externally connected with a helium booster pump through a hose. The leakage point checking piece comprises a checking installation shell and a butt joint shell, wherein the checking installation shel