JPS6123251Y2

JPS6123251Y2 -

Info

Publication number: JPS6123251Y2
Application number: JP5339180U
Authority: JP
Priority date: 1980-04-18
Filing date: 1980-04-18
Publication date: 1986-07-11
Also published as: JPS56155247U

Description

【考案の詳細な説明】（産業上の利用分野）本考案は瞬間湯沸器に関するものである。[Detailed explanation of the idea] (Industrial application field) The present invention relates to an instantaneous water heater.

（従来の技術と問題点）従来、瞬間湯沸器は通水管に一定以上の水流が
生じるとバーナを燃焼させるようになつていた。
そのため低水圧地域では水量が足りず、使用でき
ないものであつた。又、上記問題点を解決した瞬
間湯沸器として実願昭55−53390号を提案したが
これは第１図に示すように水入口１から熱交換器
２を経て給湯栓３に至る通水管４に、熱交換器２
を迂回したバイパス管５をポンプ６を介して接続
し、サーミスタ等の湯温を感知する温度検出器７
によりガスバーナ等のバーナ８に至る燃料供給管
通路９に配した電磁弁１０を開閉制御するかある
いは常開の水流スイツチ１１により開閉制御する
ようにしたものでは、第２図のように電源に対し
てポンプ６と電磁弁１０とは並列に接続すると共
に温度検出器７によつて開閉するサーモスイツチ
１２と水流スイツチ１１と電磁弁１０の直列回路
はポンプ６に対して並列に接続してあるため、ポ
ンプ６は運転スイツチ１３の投入だ常時駆動し、
サーモスイツチ１２によつて電磁弁１０のみ開閉
するものであつた。(Prior Art and Problems) Conventionally, instantaneous water heaters have been designed to fire a burner when a water flow above a certain level is generated in the water pipe.
Therefore, in areas with low water pressure, the amount of water was insufficient and could not be used. In addition, Utility Application No. 55-53390 was proposed as an instantaneous water heater that solved the above problems, but as shown in Figure 1, this water pipe runs from the water inlet 1 through the heat exchanger 2 to the hot water tap 3. 4, heat exchanger 2
A temperature detector 7, such as a thermistor, which detects the water temperature is connected to the bypass pipe 5 that bypasses the water via a pump 6.
In the case where the solenoid valve 10 disposed in the fuel supply pipe passage 9 leading to the burner 8 of a gas burner or the like is controlled to open and close, or the normally open water flow switch 11 is used to control the opening and closing of the solenoid valve 10, the power supply is The pump 6 and the solenoid valve 10 are connected in parallel, and the series circuit of the thermoswitch 12, the water flow switch 11, and the solenoid valve 10, which are opened and closed by the temperature detector 7, is connected in parallel to the pump 6. , the pump 6 is always driven when the operation switch 13 is turned on,
Only the solenoid valve 10 was opened and closed by the thermoswitch 12.

即ちこれは非給湯時にはポンプ６の駆動に伴な
い熱交換器２が放熱器となつて電磁弁１０の開閉
頻度が増大し、燃料消費量が増加するという難点
を有していた。 That is, this has the drawback that when hot water is not being supplied, the heat exchanger 2 becomes a radiator as the pump 6 is driven, increasing the frequency of opening and closing of the solenoid valve 10 and increasing fuel consumption.

本考案は係る難点を解決したものであり、水圧
の影響を受けることがなくなかつ無駄な燃料を使
用しない瞬間湯沸器の提供を目的とするものであ
る。 The present invention solves these difficulties and aims to provide an instantaneous water heater that is not affected by water pressure and does not use wasteful fuel.

（実施例）第３図において、運転スイツチ１３とサーモス
イツチ１２とポンプ６とは直列接続すると共に水
流スイツチ１１と電磁弁１０と直列回路ポンプ６
に並列接続してある。(Embodiment) In FIG. 3, an operation switch 13, a thermoswitch 12, and a pump 6 are connected in series, and a water flow switch 11, a solenoid valve 10, and a series circuit pump 6 are connected in series.
are connected in parallel.

本考案はこのような構成からなり、使用時には
運転スイツチ１３を投入すると共に給湯栓３を開
けば、初期温度は低いのでサーモスイツチ１２は
閉じておりまずポンプ６が駆動しこのポンプ６の
水流によつて水流スイツチ１１は閉成して電磁弁
１０は開き、バーナ８に点火して給湯は開始され
る。 The present invention has such a structure, and when in use, when the operation switch 13 is turned on and the hot water tap 3 is opened, the thermo switch 12 is closed because the initial temperature is low, and the pump 6 is driven first, and the water flow from the pump 6 is controlled. Therefore, the water flow switch 11 is closed, the solenoid valve 10 is opened, the burner 8 is ignited, and hot water supply is started.

次に給湯温度が設定温度以上に高温化すると、
サーモスイツチ１２は開き、ポンプ６および電磁
弁１０は瞬時に遮断停止する。 Next, when the hot water temperature rises above the set temperature,
The thermoswitch 12 opens, and the pump 6 and solenoid valve 10 are instantaneously shut off and stopped.

従つて温度検出器７の湯温感知によりサーモス
イツチ１２が開成しているにもかかわらずポンプ
６が駆動し続けるという従来の弊害を除去でき
る。 Therefore, the conventional disadvantage that the pump 6 continues to be driven even though the thermoswitch 12 is open due to the hot water temperature detected by the temperature sensor 7 can be eliminated.

（考案の効果）このように本考案は、運転スイツチとサーモス
イツチとポンプとを直列接続すると共に水流スイ
ツチと電磁弁との直列回路をポンプに並列接続し
たので、燃料消費量を低減すると共に空焚きを防
止する効果を奏する。(Effects of the invention) In this way, the present invention connects the operation switch, thermoswitch, and pump in series, and connects the series circuit of the water flow switch and solenoid valve in parallel to the pump, thereby reducing fuel consumption and reducing air pollution. It has the effect of preventing burning.

[Brief explanation of the drawing]

第１図、第２図は従来例を示すものである。第
３図は本考案の実施例を示す電気回路図である。１……水入口、２……熱交換器、３……給湯
栓、４……通水管、５……バイパス管、６……ポ
ンプ、７……温度検出器、８……バーナ、９……
燃料供給通路、１０……電磁弁、１１……水流ス
イツチ、１２……サーモスイツチ、１３……運転
スイツチ。 FIGS. 1 and 2 show conventional examples. FIG. 3 is an electrical circuit diagram showing an embodiment of the present invention. 1...Water inlet, 2...Heat exchanger, 3...Hot water tap, 4...Water pipe, 5...Bypass pipe, 6...Pump, 7...Temperature detector, 8...Burner, 9... …
Fuel supply passage, 10... Solenoid valve, 11... Water flow switch, 12... Thermo switch, 13... Operation switch.

Claims

[Scope of utility model registration request]

A bypass pipe with a pump bypassing the heat exchanger is provided in the water pipe leading from the water inlet to the hot water tap via the heat exchanger, and a solenoid valve is provided in the fuel supply pipe leading to the burner, which consists of a water pipe and a bypass pipe. In a system in which a water flow switch is provided in the closed circulation water circuit and a temperature detector is provided at the heat exchanger outlet, the operation switch, thermoswitch, and pump are connected in series, and the series circuit of the water flow switch and the solenoid valve is connected to the pump. An instantaneous water heater characterized by having parallel lines connected.