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CN-122014937-A - Leak protection gas connects and is used for outdoor operation's hydrogen energy power generation facility

CN122014937ACN 122014937 ACN122014937 ACN 122014937ACN-122014937-A

Abstract

The invention relates to the technical field of gas sealing, and discloses a gas leakage prevention joint and a hydrogen energy power generation device for outdoor operation; the anti-leakage connector comprises a first connecting end and a second connecting end, wherein a first stepped hole is formed in the first connecting end, a first air pipe is fixed in the small diameter of the first stepped hole, a second stepped hole is formed in the second connecting end, a second air pipe is fixed in the small diameter of the second stepped hole, a sleeve is sleeved on the second air pipe, a mounting gap is formed between the sleeve and the second air pipe, an annular air bag is arranged between the large diameter of the second stepped hole and the sleeve, an air inlet hole is formed in one surface, close to the sleeve, of the annular air bag, a radial through hole is formed in the sleeve, the radial through hole is communicated with the air inlet hole, the two connecting ends are in butt joint, the mounting action of the air pipe is converted into an inflating action, the first air pipe is embedded into the mounting gap, air in the mounting gap is pushed to enter the annular air bag, the air pressure of the annular air bag can be increased, the extrusion force on the sleeve and the first air pipe is larger, and the sealing performance can be improved.

Inventors

  • LI BEI
  • JIANG JUN
  • HE BINBIN
  • PAN JUN
  • ZHANG XING
  • YU ZIYU
  • ZHAN ZHILIN
  • ZHANG CHONG
  • WANG WEI

Assignees

  • 广东电网有限责任公司广州供电局

Dates

Publication Date
20260512
Application Date
20260209

Claims (10)

  1. 1. An air leakage prevention joint is characterized by comprising a first connecting end (11) and a second connecting end (12); A first stepped hole (111) is formed in the first connecting end (11), and a first air pipe (112) is fixed in the small diameter of the first stepped hole (111); A second stepped hole (121) is formed in the second connecting end (12), a second air pipe (122) is fixed in the small diameter of the second stepped hole (121), a sleeve (123) is sleeved at one end of the second air pipe (122) which is positioned at the large diameter of the second stepped hole (121), and a mounting gap is formed between the sleeve (123) and the second air pipe (122); An annular air bag (124) is arranged between the large diameter of the second stepped hole (121) and the sleeve (123), an air inlet hole (1241) is formed in one surface, close to the sleeve (123), of the annular air bag (124), a radial through hole (1231) is formed in the sleeve (123), and the radial through hole (1231) is communicated with the air inlet hole (1241); the first connecting end (11) is in butt joint with the second connecting end (12), the first air pipe (112) is embedded into the installation gap, and gas in the installation gap is pushed to enter the annular air bag (124).
  2. 2. The leak-proof joint (1) according to claim 1, characterized in that: an opening (1242) is formed at one end of the annular air bag (124) close to the step surface of the second step hole (121); An axial through hole (125) is formed in the second connecting end (12), one end of the axial through hole (125) is communicated with the opening (1242), and the other end of the axial through hole (125) is communicated with the outside of the second connecting end (12); the axial through hole (125) is provided with a one-way sealing sheet (1251), the conduction direction of the one-way sealing sheet (1251) is that the outside of the second connecting end (12) points to the opening (1242) and is reversely cut off.
  3. 3. The leak-proof joint according to claim 1, characterized in that the air intake hole (1241) is adjacent to the stepped surface of the second stepped hole (121).
  4. 4. The air leakage prevention joint according to claim 1, wherein the outer diameter of the second connecting end (12) is provided with a plurality of buckles (126), the large diameter of the first connecting end (11) is provided with a plurality of wedges (113), and the wedges (113) are in one-to-one correspondence with the buckles (126).
  5. 5. The leak-proof joint according to claim 1, characterized in that an annular sealing strip (114) is provided on the end of the first air pipe (112).
  6. 6. The leak-proof joint according to claim 5, characterized in that the end of the first air pipe (112) is sleeved with an elastic sleeve (115).
  7. 7. The gas leakage prevention joint according to claim 1, wherein a protective box (13) is arranged outside the joint of the first connecting end (11) and the second connecting end (12), a gas sensor (131) is arranged in the protective box (13), and the gas sensor (131) is adapted to detect gas introduced into the gas leakage prevention joint (1).
  8. 8. The air leakage prevention joint according to claim 7, wherein the protection box (13) is provided with a plurality of exhaust holes (132), and the exhaust holes (132) are connected with a fan (14).
  9. 9. The air leakage prevention joint according to claim 8, wherein a control valve (15) is provided between the blower (14) and the air discharge hole (132).
  10. 10. A hydrogen energy power generation device for outdoor operation, comprising: a case (2); A hydrogen fuel cell (3), wherein the hydrogen fuel cell (3) is arranged inside the box body (2); The gas leakage prevention joint (1) according to any one of claims 1-9, wherein the gas leakage prevention joint (1) is arranged on the box body (2), and the gas leakage prevention joint (1) is used for connecting the hydrogen fuel cell (3) and a hydrogen cylinder.

Description

Leak protection gas connects and is used for outdoor operation's hydrogen energy power generation facility Technical Field The invention relates to the technical field of gas sealing, in particular to a gas leakage prevention joint and a hydrogen energy power generation device for outdoor operation. Background The fuel cell can directly convert fuel chemical energy into electric energy, has the advantages of high energy conversion efficiency, clean emission, low noise and the like, and has remarkable application potential in the field of new energy power generation. Along with the promotion of scene such as outdoor operation, emergency rescue to portable power generation equipment demand, portable fuel cell generator relies on high energy density, long duration's characteristics, becomes the preferred scheme, and its miniaturization, lightweight design are core demand. However, due to the limitation of volume and convenience, the equipment cannot deploy an industrial-grade strong sealing device, and the existing lightweight sealing scheme is weak in performance and easy to cause fuel gas leakage. The portable fuel cell generator not only causes fuel waste and reduces the power generation efficiency, but also can cause potential safety hazards such as combustion, explosion and the like, and severely restricts the market popularization of the portable fuel cell generator. Therefore, how to improve the sealing performance while meeting the light-weight design requirement is a technical problem to be solved in the art. Disclosure of Invention The invention aims to solve the technical problem of improving the sealing performance while meeting the light-weight design requirement. In order to solve the technical problems, the invention provides an air leakage prevention joint and a hydrogen energy power generation device for outdoor operation. The invention provides an air leakage prevention joint which comprises a first connecting end and a second connecting end, wherein a first stepped hole is formed in the first connecting end, a first air pipe is fixed in the small diameter of the first stepped hole, a second stepped hole is formed in the second connecting end, a second air pipe is fixed in the small diameter of the second stepped hole, a sleeve is sleeved at one end of the second air pipe, which is positioned at the large diameter of the second stepped hole, a mounting gap is formed between the sleeve and the second air pipe, an annular air bag is arranged between the large diameter of the second stepped hole and the sleeve, an air inlet hole is formed in one surface of the annular air bag, which is close to the sleeve, a radial through hole is formed in the sleeve and is communicated with the air inlet hole, the first connecting end and the second connecting end are in butt joint, and the first air pipe is embedded into the mounting gap to push air in the mounting gap to enter the annular air bag. In one embodiment, the annular air bag is provided with an opening at one end close to the step surface of the second step hole, an axial through hole is arranged on the second connecting end, one end of the axial through hole is communicated with the opening, the other end of the axial through hole is communicated with the outside of the second connecting end, the axial through hole is provided with a one-way sealing sheet, and the communicating direction of the one-way sealing sheet is that the outside of the second connecting end points to the opening and is reversely cut off. In one embodiment, the air inlet is adjacent to the stepped surface of the second stepped hole. In an embodiment, the outer diameter of the second connecting end is provided with a plurality of buckles, the large diameter of the first connecting end is provided with a plurality of wedges, and the wedges are in one-to-one correspondence with the buckles. In one embodiment, an annular sealing strip is arranged on the end part of the first air pipe. In one embodiment, the end of the first air pipe is sleeved with an elastic sleeve. In an embodiment, a protection box is arranged outside the joint of the first connecting end and the second connecting end, a gas sensor is arranged in the protection box, and the gas sensor is adapted to detect the gas introduced into the gas leakage preventing joint. In one embodiment, the protection box is provided with a plurality of exhaust holes, and the exhaust holes are connected with a fan. In one embodiment, a control valve is provided between the blower and the exhaust vent. In a second aspect, the invention provides a hydrogen energy generating device for outdoor operation, comprising a box body, a hydrogen fuel cell, a gas leakage prevention joint and a gas leakage prevention joint, wherein the hydrogen fuel cell is arranged in the box body, and the gas leakage prevention joint is arranged on the box body and is used for connecting the hydrogen fuel cell and a hydrogen cylinder. Compared with the prior