Title:
冷媒の漏洩検知構造
Document Type and Number:
Japanese Patent JP6898572
Kind Code:
B2
Abstract:
To provide a refrigerant leakage detection structure capable of simply and reliably specifying a refrigerant leakage place even in a case where leakage occurs in a refrigerant pipe formed by connecting a plurality of pipe members in a sealed manner.SOLUTION: A refrigerant leakage detection structure detects that a refrigerant having a higher specific gravity than air circulating in a refrigerant pipe 8 leaks from the inside of a refrigerant pipe 8 comprising a plurality of pipe members connected in a sealed manner along a pipe conduit. On the outside of a joint part 11 between pipe members 10, 12 adjacent to each other along the pipe conduit, heat insulating coating materials 20 and 22 are coated so as to form a gap V between themselves and the outer surface of the joint part 11. The refrigerant leakage detection structure is provided with: a communication part 31 extending through the coating materials 20, 22 and communicating the gap V with the outside of the coating materials 20, 22; and a bottomed refrigerant housing part 32 arranged in communication with the outer end part of the communication part 31, and comprising an opening part 32a for detecting a refrigerant.SELECTED DRAWING: Figure 2
Inventors:
Kentaro Nakajima
Hiroshi Furuya
Hiroshi Furuya
Application Number:
JP2019058264A
Publication Date:
July 07, 2021
Filing Date:
March 26, 2019
Export Citation:
Assignee:
Mitsubishi Heavy Industries Cold Energy Co., Ltd.
International Classes:
G01M3/20; F25B1/00; F25B49/02; G01M3/22
Domestic Patent References:
| JP3030844U | ||||
| JP2018124009A | ||||
| JP3022635Y2 | ||||
| JP62034339U | ||||
| JP2010002352A |
Attorney, Agent or Firm:
Kazuo Shigenobu
Ryoichi Mizobuchi
Yoshifumi Ishikawa
Hideki Akiba
Taeko Katata
Michihiro Hayashi
Ryoichi Mizobuchi
Yoshifumi Ishikawa
Hideki Akiba
Taeko Katata
Michihiro Hayashi