METHOD FOR INSPECTING CONNECTION FAILURE OF DRAIN PIPING

• Main Author: KANO KAZUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 18.02.2022
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

To provide a method for inspecting a connection failure of drain pipping capable of inspecting whether there are connection failures of drain piping in a plurality of air conditioning devices all at once.SOLUTION: In drain piping in which a plurality of air conditioning devices 1, 1 are connected to a main drain pipe 4 via drain channels 5, 5, a bent joint 9 is provided in an apex part of each drain channel 5. The bent joint 9 comprises an internal space 9a including a bent flow passage, an opening 9b making the internal space 9a face the outside, a drainage inflow part 9c, a drainage outflow part 9e, a valve mechanism 9g provided in the drainage inflow part 9c and composed of a check valve, and a lid body 10 for closing the opening 9b. A downstream side of the main drain pipe 4 is blocked, and out of a plurality of drain channels 5, 5 the lid body 10 is mounted to the openings 9b of the bent joints 9 of other drain channels 5 except one drain channel 5. In the bent joint 9 of the one drain channel 5, water is stored in the internal space 9a from the opening 9b, and then whether a water level of the stored water changed is confirmed.SELECTED DRAWING: Figure 9 【課題】複数の空調機器におけるドレン配管の接続不良の有無を一度に確認することができる、ドレン配管の接続不良確認方法を提供する。【解決手段】複数の空調機器１、１が、排水路５、５を介して排水主管４に繋がっているドレン配管において、各排水路５の頂部部分に屈曲継手９が設けられる。屈曲継手９は、屈曲流路を有する内部空間９ａと、その内部空間９ａを外部に臨ませる開口９ｂと、排水流入部９ｃと、排水流出部９ｅと、排水流入部９ｃに設けられた逆止弁からなる弁機構９ｇと、開口９ｂを閉鎖する蓋体１０とを備える。ここで、排水主管４の下流側が閉塞された状態とし、複数の排水路５、５のうち、１の排水路５を除く他の排水路５の屈曲継手９は、その開口９ｂに蓋体１０が取り付けられた状態とする。１の排水路５の屈曲継手９において、開口９ｂから内部空間９ａに貯水されるまで水を入れ、その後に、その貯水した水の水位の変化の有無を確認する。【選択図】 図９