JPS60155850A - Hot-water supplier - Google Patents

Abstract

PURPOSE:To heat water in a bathtub uniformly at all times to prevent uncomfortable feeling and improve safety by mixing high-pressure bathtub hot-water, discharged by a pump at the returning side of a water path, with high-temperature hot-water by a venturi unit. CONSTITUTION:The outlet port of a forced water passing type heat exchanger 17 is divided in the main body 16 of the device to supply water to a water supplying pipe provided on a forced circulation type advancing side water path, having the pump 24, through a hot-water pouring circuit and detect the temperature in the water path. The path is formed with a high-pressure discharging port 35 and the venturi unit 33 to induce air together with the hot-water from the water supplying pipe 21 and inject them after mixing with the bathtub hot- water. In case of a additional heating, heating of additional heating may be effected from the water path 25 by setting a high temperature in a setter 29. At this time, the hot-water in the bathtub 26 may be mixed uniformly with high- temperature hot-water in the venturi unit 33 with the injecting energy of the discharging port 35 by driving the pump 24.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a water heater that uses gas, oil, electricity, etc. as a heat source and automatically supplies hot water to two bathtubs, etc., and performs memorial service.

Conventional Structure and Problems Conventionally, this type of hot water supply and memorial system has been structured as shown in FIG.

A forced water flow type heat exchanger 2 (hereinafter referred to as heat exchanger 2) and a natural circulation type heat exchanger 3 (hereinafter referred to as heat exchanger 3) are installed in the appliance body 1.
The heat exchanger 3 is connected to the bathtub 6 via a circulation pipe 4.

After configuring the temperature sensor 8, the hot water outlet of the heat exchanger 2 is divided outside the appliance (carried out at the time of installation work), and a hot water tap 6 and a hot water tap 7 (configured to face the bathtub 6) are attached. be.

Fuel is supplied from the inlet portion 9, and heat is generated in the heaters 1o and 11 provided corresponding to the heat exchangers 2 and 3. Further, each fuel supply system includes a fuel controller 12 and a fuel controller 13.

14 is a setting device, and 16 is a control section. The setting device 14 also has a remote installation configuration.

When hot water is supplied by dropping into the bathtub 5 using the heat exchanger 2, when the hot water tap 7 is opened, fuel is supplied to the heater 10 by the combustion controller 12, and the temperature is detected so that the hot water temperature corresponds to the setting device 14. The amount of heating is controlled by feedback from the device.

At this time, the bathtub 5 is in an open state, and the heat radiation loss is large.
In addition, heat is also radiated from the heat exchanger 3, which poses a major problem in energy saving. Furthermore, if the person performs the act while taking a bath and performs a memorial service, the high-temperature water will be poured into the bath, causing safety issues and discomfort.

Next, in the case of memorial service using the heat exchanger 3, natural circulation heating is used, and the flow rate of hot water blowing out in the bathtub 6 is slow, and the temperature difference between the upper and lower parts of the bathtub 5 becomes large, causing discomfort. Due to the natural circulation, the installation conditions for the appliance body 1 and the bathtub 6 are restricted, so the degree of freedom is somewhat limited.

In addition, since there are two heat sources, the capacity has increased in recent years (hot water supply capacity Kani No. 16 1": J, upper 3200 okd / hr,
Memorial Noh Crab 10000-120001cal/hr
) There are limits to the compactness of the times, and issues remain in space saving.

Purpose of the Invention The present invention eliminates such conventional drawbacks, and aims to prevent heat radiation loss caused by dropping hot water supply and discomfort caused by non-uniformity during memorial service, increase the degree of freedom in installation, and realize compactness. The purpose is to

Structure of the Invention In order to achieve this object, the present invention divides the outlet part of a forced water flow type heat exchanger within the device body, and connects it to a forced circulation type outgoing water passage with a built-in pump etc. via a hot water pouring circuit. The system is configured to supply water to a water supply pipe to be installed and detect the temperature inside the water passage, and a high-pressure outlet and part of a venturi are formed in the water supply pipe to suck air along with hot water from the water supply pipe, mix it with bath water, and then blow it out. be. These controls are controlled according to the load using a temperature detector, a control unit, and a setting device.

In the case of drop-in hot water supply, hot water according to the settings set by the setting device and the control unit is poured from the hot water pouring circuit into the water passage, and is poured into the bathtub to be supplied with hot water. In this case, since the bathtub can be sealed, heat loss can be prevented and energy savings can be achieved.

Also, when memorializing, for example, when the bathtub water temperature needs to be raised a little, this can be achieved by pouring high temperature water (80 to 96°C) into the water passage from the pouring circuit.

At this time, on the return side of the water passage, high-pressure bath water (36 to 40'C) discharged by a pump, etc. and high-temperature water are mixed by a part of the venturi. Air is also sucked from the water supply pipe by the negative pressure of the venturi and mixed. Therefore, the inside of the bathtub is always uniformly heated and maintained in a state that prevents discomfort, and is also highly safe.

Description of examples Embodiments of the present invention will be described below with reference to FIG.

In FIG. 2, a forced water flow type heat exchanger 17 (hereinafter referred to as heat exchanger 17) is provided inside the instrument body 16, and after configuring a temperature detector (T122) at the outlet, it is divided within the instrument body 16. ,
Hot water tap 23, one of which is installed in the hot water circuit outside the appliance (in some cases)
(two or more) and the other via a pouring pipe 18 equipped with a valve drive section 19.

It is configured to face the water supply pipe 21 provided in the throttle part 34 of the venturi part 33 on the return side of the forced circulation type water passage 25 with the built-in pump 24. A high-pressure outlet 35 faces the venturi part 33, a temperature detector (TA) 31 is configured on the inlet side of the outgoing path, and the reciprocating path is connected to the bathtub 26. The height of the hot water supply pipe 21 is configured to be higher than the bathtub 26, and a heater 27 is provided correspondingly to the heat exchanger 17.

The fuel supplied from the fuel supply port 31 is supplied to the combustion controller 32.
Setting device 29. It is controlled by the control unit 30 according to the load, and the heater 27 generates heat. The setting device 29 can also be installed remotely, and 20 is a spout.

With this configuration, when hot water is supplied by dropping into the bathtub 26,
It will look like this:

When the target hot water supply temperature (40 to 45° C.) is set using the setter 29 and turned on, the valve drive unit 19 opens. At the same time, water moves to the heat exchanger 17, fuel is supplied to the heater 27, and the heat exchange action begins. Temperature control is temperature detection, vessel (TB) 22
and control unit 30. The combustion controller 29 controls the feedper,
controlled.

The hot water discharged from the heat exchanger 17 is passed through the pouring pipe 18 to the pouring port 2.
It is possible to obtain the effect that the water naturally falls into the water supply pipe 21 from the water passageway section and is stored in the bathtub 26 in a sealed state, and heat radiation loss can also be prevented. In addition, since the water passage 25 does not have a heating type heat exchange structure like the conventional one, it is possible to remove the heat insulation structure, further improving the heat radiation loss prevention effect17.
It is possible to achieve hot water supply with excellent energy savings.

Furthermore, in the event of a memorial service, by setting the setting device 29 to a high temperature, it is possible to perform a heated memorial service from the water passageway 26. At this time, by driving the pump 24, the hot water in the bathtub 26 and the hot water are uniformly mixed in the venturi part 33 by the ejection energy of the outlet 36, and the negative pressure of the throttle part 34 causes the water supply pipe 2 This has the effect of sucking more air and further promoting the mixing effect, resulting in a comfortable and safe mourning effect even during bathing, which is excellent in terms of usability. Furthermore, even if the high temperature hot water supply is turned off and the pump 24 is driven only, the bubble effect due to air suction can be obtained, further enhancing the usability.

It can be said that compactness can be sufficiently achieved by making these effects (functions) possible using a heat source.

Effects of the Invention As described above, the water heater of the present invention realizes comfort through energy-saving uniform heating by integrating one heat source and a forced circulation type water passage with a mixing action that includes air suction. This ensures safety and enables compactness.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a conventional composite water heater, and FIG. 2 is a block diagram of a water heater according to an embodiment of the present invention. 16 ... appliance body, 17 forced water flow type heat exchanger, 1
8... Water pipe, 19... Valve drive section, 21...
... Water supply pipe, 22 ... Temperature detector (TB), 26
・・・・・・Forced circulation type water passage, 27-・Heater 2
9...Setting device, 3o...Control unit, 31...
・Temperature detector (TA), 32...Fuel controller, 3
3...Part of Venturi, 34...Aperture part, 3
5. Outlet.

Claims (1)

[Claims] (1) Forced water flow type heat exchanger and temperature detector (T
A) A forced circulation type heat exchanger is provided with a temperature detector (TB) on the output side of the forced water flow type heat exchanger, and then divided within the device body, and one side is connected to the output circuit outside the device. This constitutes a pouring circuit that pours molten metal into a water supply pipe provided in the water passage through a pouring pipe equipped with a valve that forcibly opens and closes the other at the same time, and forms a high-pressure outlet on the return side of the water passage. The water supply pipe is formed in the throttle part of the venturi part, and the temperature sensor (TA
), (TB) and a means for controlling the heating amount of the forced water heat exchanger according to the pouring load.