JPH0377149U

JPH0377149U -

Info

Publication number: JPH0377149U
Application number: JP13816589U
Authority: JP
Priority date: 1989-11-29
Filing date: 1989-11-29
Publication date: 1991-08-02
Anticipated expiration: 2004-03-02
Also published as: JPH068444Y2

Description

[Brief explanation of the drawing]

第１図は本考案の要部概念図、第２図は本考案
実施例の説明図、第３図は従来例の説明図であり
、図中、１……熱交換器、４……保持体、１１……バイ
パス回路、１８……逆止弁、１９……第１連絡流
路、１９ａ……開口部、２０……第２温水取出手
段、２２……第１温水取出手段、２９……第２連
絡流路、３４……水抜き弁、３５……過流出防止
弁、３６……第１排水路、３７……第２排水路、
３８……開閉手段。 Fig. 1 is a conceptual diagram of the main parts of the present invention, Fig. 2 is an explanatory diagram of an embodiment of the present invention, and Fig. 3 is an explanatory diagram of a conventional example. body, 11... bypass circuit, 18... check valve, 19... first communication channel, 19a... opening, 20... second hot water extraction means, 22... first hot water extraction means, 29... ...Second communication channel, 34...Drain valve, 35...Excessive outflow prevention valve, 36...First drainage channel, 37...Second drainage channel,
38...Opening/closing means.

Claims

[Claims for Utility Model Registration] The first communication channel 19, the second communication channel 29, and one end of each of the bypass circuits 11 are collectively connected, and the second communication channel 29 has a shower 23, a faucet 24, etc. The second hot water extraction means 20 is connected to the drain valve 34 and the overpressure prevention valve 35, the bypass circuit 11 is connected to the upstream flow path of the heat exchanger 1, and the first communication flow path 19 is connected to the bypass circuit 11.
A first hot water extraction means 22 such as a hot water filling valve is connected to the water discharge part of the heat exchanger 1, and the first communication flow path 19 is connected to a first communication flow path 19, a second communication flow path 19,
29 and the gathering point of the bypass circuit 11 to the first
In a water heater equipped with a check valve 18 that blocks water flow toward the hot water extraction means 22, the first communication channel 19, the bypass circuit 11, and the second
The check valve 18, the water drain valve 34, and the overpressure prevention valve 35 are arranged centrally at the gathering part of the three passages of the connecting passage 29, and the first connecting passage 1 is opened and communicated with the said passage gathering part.
The check valve 18 is constituted by a lift valve disposed so as to face the opening 19a of the flow path from the center side of the flow path gathering portion, and the check valve 18 is held and the flow path forming wall A holding body 4 is provided which penetrates the inside and outside, and this holding body 4
first and second drainage channels 36, which communicate the inside and outside of the flow channel;
The overpressure prevention valve 35 is constituted by the first drainage channel 36 on one side and the valve body 39 which is closed by a spring from the downstream side, and the other second drainage channel 37 is bored in the holding body 4. Drainage channel 3
7 and an opening/closing means 38 for opening and closing the drain valve 34.
A water heater that consists of