JPH0255051U - - Google Patents

Description

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

第１図は本考案実施例の説明図、第２図は従来
例の説明図であり、図中、 ２……熱交換器、５……帰還回路、７……ガス
バーナ、８……流路切替装置、２１……給湯回路
、２２……水流スイツチ、２３……出湯回路、４
１……出湯温センサ、４２……貯湯温センサ、Ｐ
……循環ポンプ、５１……貯湯タンク、５３……
補助回路、７１……ガス回路、７２……ガス弁。 Fig. 1 is an explanatory diagram of an embodiment of the present invention, and Fig. 2 is an explanatory diagram of a conventional example. Switching device, 21...Hot water supply circuit, 22...Water flow switch, 23...Hot water output circuit, 4
1... Output hot water temperature sensor, 42... Hot water storage temperature sensor, P
...Circulation pump, 51...Hot water storage tank, 53...
Auxiliary circuit, 71... Gas circuit, 72... Gas valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 熱交換器２から流出する水の温度を検知する出
湯温センサ４１と、上記熱交換器２の上下両流路
部を繋ぐ帰還回路５と、該帰還回路５の分岐部か
ら該帰還回路５側に向う回路と他方の出湯蛇口１
側に繋がる回路を択一的に開放する流路切替装置
８と、上記帰還回路５に挿入された循環ポンプＰ
及び貯湯タンク５１と、該貯湯タンク５１と上記
流路切替装置８より下流側に位置する出湯回路２
３部分を繋ぐ補助回路５３と、上記貯湯タンク５
１内の水温を検知する貯湯温センサ４２と、出湯
蛇口１の開閉に連動してＯＮ・ＯＦＦする水流ス
イツチ２２と、該水流スイツチ２２から水流停止
信号が出たときには貯湯タンク５１内の水が暖ま
つたことを示す高水温信号が貯湯温センサ４２か
ら出力されるまでポンプ駆動信号を出すポンプ駆
動信号発生回路５５と、該ポンプ駆動信号発生回
路５５からのポンプ駆動信号か又は出湯蛇口１が
開放された際に生じる水流スイツチ２２の通水信
号のいずれかの信号によつてガスバーナ７へのガ
ス回路７１に挿入したガス弁７２の開成信号を出
す第１０Ｒ回路４６と、出湯温センサ４１から出
力され且つ予め設定された温度範囲から外れる程
熱いか又は冷たいことを示す高・低温信号と貯湯
温センサ４２の高水温信号と更に上記したポンプ
駆動信号発生回路５５が出すポンプ停止信号の３
つの信号のＡＮＤ条件を調べる第２ＡＮＤ回路３
３と、該第２ＡＮＤ回路３３の出力信号か又はポ
ンプ駆動信号発生回路５５が出すポンプ駆動信号
のいずれかの信号が印加された場合に既述した流
路切替装置８を帰還回路５側に切替える信号を出
す第２０Ｒ回路４７を設けた給湯装置。 A hot water temperature sensor 41 that detects the temperature of water flowing out from the heat exchanger 2, a feedback circuit 5 that connects both the upper and lower flow path portions of the heat exchanger 2, and a feedback circuit 5 that connects a branch of the feedback circuit 5 to the feedback circuit 5 side. The circuit towards and the other hot water faucet 1
A flow path switching device 8 that selectively opens the circuit connected to the side, and a circulation pump P inserted into the feedback circuit 5.
and a hot water storage tank 51, and a hot water supply circuit 2 located downstream of the hot water storage tank 51 and the flow path switching device 8.
An auxiliary circuit 53 connecting the three parts and the hot water storage tank 5
A hot water storage temperature sensor 42 detects the water temperature in the hot water storage tank 51, a water flow switch 22 that turns on and off in conjunction with the opening and closing of the hot water faucet 1, and a water flow switch 22 that turns on and off in conjunction with the opening and closing of the hot water faucet 1; A pump drive signal generation circuit 55 generates a pump drive signal until a high water temperature signal indicating that the water has warmed up is output from the stored hot water temperature sensor 42, and the pump drive signal from the pump drive signal generation circuit 55 or the hot water tap 1 is activated. A 10R circuit 46 generates an opening signal for the gas valve 72 inserted in the gas circuit 71 to the gas burner 7 in response to one of the water flow signals of the water flow switch 22 generated when the water flow switch 22 is opened, and a hot water outlet temperature sensor 41. A high/low temperature signal indicating that the water is too hot or cold to be out of a preset temperature range, a high water temperature signal from the stored hot water temperature sensor 42, and a pump stop signal issued by the pump drive signal generation circuit 55 described above.
Second AND circuit 3 to check the AND condition of two signals
3, and when either the output signal of the second AND circuit 33 or the pump drive signal output from the pump drive signal generation circuit 55 is applied, the flow path switching device 8 described above is switched to the feedback circuit 5 side. A water heater equipped with a 20R circuit 47 that outputs a signal.