JPS58147541U

JPS58147541U - Automatic switching valve device for gas supply with alarm

Info

Publication number: JPS58147541U
Application number: JP4613782U
Authority: JP
Inventors: 宮原　秀朗
Original assignee: 株式会社　ほくさん
Priority date: 1982-03-31
Filing date: 1982-03-31
Publication date: 1983-10-04
Also published as: JPH0340309Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案に係る警報付ガス供給用自動切換弁装置
の一部を切欠した配管系統図、第２図は同装置のガス圧
微量調整器を示す縦断正面図、第３図は既応ガス供給用
自動切換弁装置における減圧弁の低圧出口側ガス圧変動
経過図、第４図は減圧弁の縦断正面図である。１・・・・・・自動ガス切換弁、２．２′・・・・・・
第１、第２導入口、３，３′・・・・・・第１、第２減
圧弁、５゜５′・・・・・・第１、第２低圧側ガス圧力
スイツチ、６・・・・・・ガス供給口、１０・・・・・
・可動ピストン、２１゜２１′・・・・・・ガス圧微量
調整器、Ａ、　Ｂ・・・・・・第１、第２高圧ガスボン
ベ。Fig. 1 is a partially cutaway piping system diagram of the automatic switching valve device for gas supply with alarm according to the present invention, Fig. 2 is a longitudinal sectional front view showing the gas pressure microregulator of the device, and Fig. 3 is the existing one. FIG. 4 is a longitudinal sectional front view of the pressure reducing valve. 1...Automatic gas switching valve, 2.2'...
1st, 2nd inlet, 3, 3'... 1st, 2nd pressure reducing valve, 5゜5'... 1st, 2nd low pressure side gas pressure switch, 6... ...Gas supply port, 10...
- Movable piston, 21゜21'...Gas pressure fine regulator, A, B...First and second high pressure gas cylinders.

Claims

[Scope of utility model registration request]

first and second high-pressure gas cylinders are connected to first and second inlets of the automatic gas switching valve via first and second pressure reducing valves, respectively;
When the gas pressure difference between the low-pressure outlet sides of the first and second pressure reducing valves becomes larger than a predetermined pressure value, the movable piston of the automatic gas switching valve operates to switch due to the gas pressure difference, and until then the automatic gas switching valve The high-pressure gas cylinder that was supplying gas from the gas supply port of the switching valve is switched to supply from another high-pressure gas cylinder, and the gas pressure is set at each low-pressure outlet side of the first and second pressure reducing valves. In an automatic switching valve device for gas supply, which is equipped with a low-pressure side pressure switch for an alarm that detects when the pressure has dropped to a certain level and prompts replacement of the cylinder, the gas supply automatic switching valve device is provided with a low-pressure side pressure switch that alerts the user to replace the cylinder. is opened by increasing the gas pressure on the outlet side by a small set pressure than the low-pressure side set gas pressure of the pressure reducing valve, and then releases the gas on the same outlet side and lowers the pressure to the above-mentioned low-pressure side set gas pressure. An automatic switching valve device for gas supply with an alarm that is connected to a flexible gas pressure micro-regulator.