JPS6293293U

JPS6293293U -

Info

Publication number: JPS6293293U
Application number: JP18248585U
Authority: JP
Priority date: 1985-11-27
Filing date: 1985-11-27
Publication date: 1987-06-15

Description

[Brief explanation of the drawing]

第１図は本考案に係るガス欠警報切替供給装置
に使用するガス欠警報回路装置の電気回路図、第
２図は従来のガス切替供給装置例を示した全体配
管説明図、第３図は同装置に組込まれる従来のガ
ス欠警報回路装置を示す電気回路図である。１……マニホールド、４ａ……第１ガス容器、
４ｂ……第２ガス容器、２２ａ……第１圧力スイ
ツチ、２２ｂ……第２圧力スイツチ、２８ａ……
第１警報部、２８ｂ……第２警報部、３０ａ……
第１リレー、３０ｂ……第２リレー、３１ａ……
第１常開リレー接点、３１ｂ……第２常開リレー
接点、３２ａ……第１常閉押釦スイツチ、３２ｂ
……第２常閉押釦スイツチ、３３ａ……第１直列
回路、３３ｂ……第２直列回路。 Fig. 1 is an electric circuit diagram of a gas shortage alarm circuit device used in the gas shortage alarm switching supply device according to the present invention, Fig. 2 is an explanatory diagram of the entire piping showing an example of a conventional gas switching supply device, and Fig. 3 is FIG. 2 is an electric circuit diagram showing a conventional gas shortage alarm circuit device incorporated in the device. 1... Manifold, 4a... First gas container,
4b...second gas container, 22a...first pressure switch, 22b...second pressure switch, 28a...
First alarm section, 28b...Second alarm section, 30a...
First relay, 30b...Second relay, 31a...
First normally open relay contact, 31b...Second normally open relay contact, 32a...First normally closed push button switch, 32b
...Second normally closed push button switch, 33a...First series circuit, 33b...Second series circuit.

Claims

[Scope of utility model registration request]

A first gas container and a second gas container, each of which alternately sends desired gas to the manifold, are connected to the manifold that supplies gas to the demand destination so that they can be exchanged with a newly filled gas container, and each gas container is A first pressure switch and a second pressure switch that detect gas shortage, and a first alarm section and a second alarm section that are energized in response to the detection response of each of the switches.
one of the alarm units is activated, thereby automatically or manually switching the supply from the gas container to the supply from the other gas container,
In the device in which a newly filled gas container is connected in place of the gas container in the gas shortage state, each of the first alarm section and the second alarm section is connected in parallel with the first alarm section and the second alarm section.
relay, the first normally open relay contact of the second relay, the second
A first series circuit and a second series circuit formed by a normally open relay contact and a first normally closed pushbutton switch are connected in parallel with the first pressure switch and the second pressure switch, respectively. Alarm switching supply device.