JPH02131165U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る自動水抜装置の１実施例
を備えた給湯器の外観図に配管図を付記した説明
図である。第２図は上記実施例における給水元電
磁弁の断面図、第３図は同じく給水水抜電磁弁の
断面図である。第４図は従来例の給湯器の外観図
である。 １……給湯器本体、２……給水管、３……給湯
管、４……ガス管、８……排水ユニツト、８ａ，
８ｂ……管継手、９……給水元電磁弁、１０……
水抜管、１１……給水水抜電磁弁、１２……水抜
管、１３……給湯水抜電磁弁。 FIG. 1 is an explanatory diagram in which a piping diagram is added to an external view of a water heater equipped with an embodiment of an automatic water draining device according to the present invention. FIG. 2 is a sectional view of the water supply solenoid valve in the above embodiment, and FIG. 3 is a sectional view of the water supply water drain solenoid valve. FIG. 4 is an external view of a conventional water heater. 1...Water heater main body, 2...Water supply pipe, 3...Hot water supply pipe, 4...Gas pipe, 8...Drainage unit, 8a,
8b...Pipe joint, 9...Water supply source solenoid valve, 10...
Water drain pipe, 11... Water supply water drain solenoid valve, 12... Water drain pipe, 13... Hot water supply water drain solenoid valve.

Claims (1)

【実用新案登録請求の範囲】 給水管から供給される水を加熱し、給湯管を介
して給湯する給湯器において、 前記給水管の途中に介挿接続された、通電時に
開弁する常閉形の電磁弁と、 上記常閉形の電磁弁と給湯器との間から分岐す
る水抜管に設けられた、通電時に閉弁する常開形
の電磁弁と、 前記給湯管から分岐する水板管に設けられた、
通電時に閉弁する常開形の電磁弁と、を具備する
ことを特徴とする給湯器の自動水抜装置。[Scope of Claim for Utility Model Registration] In a water heater that heats water supplied from a water supply pipe and supplies hot water through the water supply pipe, a normally closed valve that is inserted and connected in the middle of the water supply pipe and opens when electricity is applied. a solenoid valve; a normally open solenoid valve that closes when energized and is installed in a water drain pipe that branches from between the normally closed solenoid valve and the water heater; and a normally open solenoid valve that closes when energized; was given,
An automatic water drain device for a water heater, characterized by comprising a normally open solenoid valve that closes when energized.