JPS58140556A - Apparatus used for both bath boiler and hot water supply - Google Patents

Abstract

PURPOSE:To enhance the ability of the hot water supplying device to the maximum degree, by communicating a heat exchanger for a bath and a heat exchanger for hot water supply, and passing the water through both heat exchangers, when hot water is supplied to a bath tub. CONSTITUTION:A valve 20 is provided in a lower water pipe, which communicates the inlet port of the heat exchanger 15 of the bath furnace 13. A detector 21, which confirms the water flow and the full level of the water in the heat exchanger 15, and a hot water temperature detector 22 are provided in an upper water pipe, which communicates an outlet port to the bath tub 11. A feed pipe 23 having a water flow detector 24 is connected to the inlet port of the heat exchanger 16 of a hot water supplying boiler 14. A hot water temperature detector 25 is provided at an outlet port, and communicated to the inlet port of the heat exchanger 15 by a communicating pipe 17. A solenoid controlled valve 18 is provided in the communicating pipe 17, and a vacuum breaking valve 19 is provided at a position higher than the highest water level, also in the pipe 17. A hot water feeding pipe 39 is branched. When the water is absent in the bath tub 11, the solenoid controlled valve 18 is opened, and the valve 20 is closed. When the detectors 21 and 24 detect the water flow, burners 26 and 27 are fired. When the water level in the bath tub 11 reaches a specified level, the solenoid controlled valve 18 is closed by the signal from the detector 38, the valve 20 is opened, and the burner 27 is extinguished.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot water supply device that also serves as a bathtub, which includes a bath heat exchanger that circulates and heats bath water and a hot water heat exchanger that heats water supply.

Conventionally, a water heater as shown in FIG. 1 has been used. This water heater is equipped with a bath heat exchanger 3 for heating bath water and a hot water supply heat exchanger 4 in a case 2 placed on the side of the bathtub 1. Both ends of the bath heat exchanger 3 are connected to the bathtub 1. The hot water supply heat exchanger 4 communicates with the water supply pipe 5 such as water supply, and the outlet communicates with the hot water supply pipe 6 to connect the bathtub 1.
Hot water is supplied to hot water taps 8 and sinks 7, and each heat exchanger 3.4 is provided with a burner 9.10.

In the case of such a conventional water heater, each heat exchanger 3, 4 is independent, so when hot water is being supplied to an empty bathtub 1, only the burner 10 and the heat exchanger 4 are working. The heat exchanger 3 and burner 9 are in an idle state.

In other words, even though there are two heat exchangers and a burner, they cannot be used in one minute.

The purpose of this invention is to solve the problem of water heaters having two heat exchangers and two burners as described above. The purpose is to maximize the ability of the water heater by passing the water supplied from the water supply pipe through the water exchanger.

That is, this invention combines a bath heat exchanger that circulates and heats bath water, and a hot water heat exchanger that sends water supplied from a tap or the like to a hot water faucet as heated U1 hot water using a solenoid valve and a vacuum break. The solenoid valve is controlled by a water level detector, and until the water in the bathtub reaches a constant water level, the solenoid valve is opened and the water that has been supplied flows into the bathtub through the water exchanger. In addition, a burner for heating each heat exchanger is ignited to allow the water heater to exhibit its maximum capacity, and furthermore, to provide a water heater for both bath and bath, in which bath water can be automatically supplied and heated.

The details of this invention will be described below in Figures 2 to 4 of the accompanying drawings.
An explanation will be given based on the figure.

First, to explain the first invention device shown in FIG.
Reference numeral 12 denotes a bathtub, and 12 is a case in which a bath pot 13 and a hot water pot 14 are provided, and a bath heat exchanger 15 and a hot water heat exchanger 16 are provided inside these.

The inlet of the heat exchanger 15 and the outlet of the heat exchanger 16 are connected to a communication pipe 17.
A solenoid valve 18 and a vacuum breaker valve 19 are provided in the middle.

An electromagnetic or electric valve 20 is installed in the middle of the lower water pipe that communicates the lower part of the bathtub 11 with the bath heat exchanger 15.
A detector 21 and a hot water temperature detector 22 are installed in the middle of the upper water pipe that communicates the outlet of the heat exchanger 15 with the bathtub 11 to confirm whether the heat exchanger 15 is flowing or full.

Further, a water supply pipe 23 leading to a water supply pipe is connected to the population of the hot water supply heat exchanger 16, a flowing water detector 24 is provided in the middle thereof, and a hot water temperature detector 25 is provided at the outlet of the heat exchanger 16, A burner 26.27 is provided below each heat exchanger 15.16, and a gas supply pipe 28.28 is provided with each burner 26.27.
29 is provided with a gas main pipe 31 having a main stopcock 30.

The gas supply pipe 28 is a solenoid valve 3 controlled by a hot water temperature detector 22.
2, an electromagnetic bath main valve 33 that opens and closes with a detector 21, and an electromagnetic safety valve 34 that automatically closes when the burner 26 goes out.
will be established.

The gas supply pipe 29 also includes an electromagnetic valve 35 controlled by the hot water temperature detector 25, an electromagnetic main valve 36 for hot water supply that is opened and closed by the flowing water detector 24, and an electromagnetic main valve 36 that automatically opens and closes when the burner 27 is turned off. The electromagnetic safety valve 37 is closed.

A water level detector 38 is operated by a float or the like to detect the water level in the bathtub 11, and controls the solenoid valve 18.

39 is a hot water supply pipe branched from the communication pipe 17, at the end of which a hot water supply [40 and a shower head 41 are thrown, and a shower valve 41' is provided in the middle of the pipe.

Reference numeral 42 denotes an exhaust pipe that communicates with the upper exhaust ports of the pots 13 and 14, and has a forced exhaust fan 43, and an air intake port is provided at a suitable location in the case 12.

FIG. 4 shows details of the vacuum breaker valve 19, and 44 is its valve box. This: The valve box 44 has an air port 45 at the top.
There is a connection port 46 of the communication pipe 17 leading to the hot water supply heat exchanger 16 at the bottom, and a connection port 47 of the communication pipe 17 leading to the bath heat exchanger 15 is located at the side.

A guide cylinder 48 is fixed inside the valve box 44, and this guide cylinder 4
Valve bodies 50.51 are fitted on the upper and lower sides of the movable spindle 49 in the spindle 8 so as to be able to move up and down, respectively, and springs 52 are provided to move both the valve bodies up and down. Fix the stop ring to prevent this.

Further, valve seats 53.54 are provided above and below inside the valve box 44 to face the valve body 50.51, and the guide tube 48 has a communication hole that communicates the air port 45 with the connection port 47, and a connection port 46.47. A communication hole is provided for communication.

Therefore, in the state shown in FIG.
The connection port 46 is closed off from the connection port 47 and the air port 45 by being in close contact with the connection port 47 and the air port 45. Therefore, the connection port 47 communicates with the outside air.

Further, when water pressure is applied inside the connection port 46, the valve body 51 is pushed up and separated from the valve seat 54, and at the same time, the connection ports 46 and 47 are opened and water flows from the connection port 46 to the connection port 47, and at the same time, the spring 52
The valve body 50 is pushed up through the valve seat 53 and comes into close contact with the valve seat 53.
The air port 45 is closed to prevent outside air from being sucked in.

Next, the operation of the apparatus of the first invention shown in FIG. 2 will be explained.

When the power switch (not shown) is turned on, the hot water tap 40 and the shower valve 41' are closed, and the gas main valve 30 is open, when there is no water in the bathtub 11, a signal from the water level detector 38 triggers the solenoid valve 18. is opened and the valve 20 is closed, so that the water supplied to the water supply pipe 23 is transferred to the toilet heat exchanger 16,
- Solenoid valve 18 - Vacuum break valve 19 → Bath heat exchanger 15 -
It flows into the bathtub 11 from the upper torpedo. When this water flow is detected by the detector 21.24, the main valve 33.36 opens, gas is discharged from each burner 2'6.27 and is automatically ignited by an appropriate ignition means, and the heat exchanger 16. - Water passing through 15 is heated and supplied to bathtub 11.

When the water level in the bathtub 11 reaches a constant water level due to the above action, the electromagnetic valve 18 closes in response to a signal from the detector 38, water supply is stopped, the valve 20 opens, the main valve 36 closes, and the burner 27 is turned off. The temperature of the hot water in the water supply is adjusted by opening and closing the electromagnetic valve 32.35; 7) using the hot water temperature detector 22.25.

Also, when the water supply ends and the water flow in the communication pipe 17 disappears,
The water pressure in the communication pipe 17 is reduced by the vacuum break valve 19, and the water level in the communication pipe 17 becomes equal to the water level in the bathtub, so that the water in the communication pipe 17 near the valve 19 is replaced with air.

When the hot water tap 40 or shower valve 41' is opened in this state, water from the water pipe 23 flows through the heat exchanger 16 - hot water pipe 39 - hot water tap 40 or shower head 41, and the detector 24
The main valve 36 is opened to ignite the burner 27, and the water temperature detector 25 opens and closes the electromagnetic valve 35 to adjust the water temperature. At this time, since the solenoid valve 18 is closed, water does not flow toward the heat exchanger 16.

When the bathtub 11 is full of water as described above, the bath heat exchanger 15 is also full of water. Therefore, the signal from the detector 21 causes the main valve 33 to
is open and the burner 26 is ignited, the water in the heat exchanger 15 rises in temperature and flows into the bathtub 11 from the upper water pipe, and the warm water in the bathtub 11 flows from the lower water pipe through the valve 20. The water in the bathtub 11 is heated by heat convection flowing into the heat exchanger 15, and the temperature of the water at this time is determined by opening and closing a solenoid valve 32 using a water temperature detector 22.

Although the water level detector 38 is provided in the bathtub in FIG. 2, it can also be built into the case 12. Moreover, a check valve can also be used as the valve 20.

The device of the first invention performs the above-mentioned action, and
1 is empty and water is to be supplied, the valve 20 of the lower water pipe that connects the bath heat exchanger 15 and the lower part of the bathtub is closed, and the solenoid valve 18 is opened by the signal from the water level detector 3B.
Water supplied to the bathtub 11 is heated by both the water heater and the bath heat exchanger 16.15. Therefore, the temperature of hot water rises extremely quickly when water is supplied. Furthermore, since the solenoid valve 18 closes after the water level in the bathtub 11 reaches a constant water level, heating of rising hot water and reheating of the bathtub water are performed by respective heat exchangers, and heat exchange is performed by the vacuum breaker valve 19. Since air enters the middle of the communication pipe 17 that communicates the vessels 15 and 16, there is no risk that the water in the bathtub 11 will flow into the hot water supply pipe 39, the hot water heat exchanger 16, and the water supply pipe 23, making it extremely sanitary. There are effects such as

FIG. 3 shows the second invention device.

In the case of this inventive device, a circulation pump 55 is provided in the lower water pipe that communicates the inlet of the bath heat exchanger 15 with the lower part of the bathtub 11 to forcibly circulate water between the bath heat exchanger 15 and the bathtub 11. A flowing water detector 56 is installed on the pipe that communicates with the outlet of the heat exchanger 15, and a water detector 56 is installed on the vacuum breaker valve 19 side in the middle of the communication pipe 17 that communicates the vacuum breaker valve 19 with the bath heat exchanger 15. This device is provided with a check valve 57 to prevent backflow to the device, and the other configurations are the same as the first invention device. Further, in the case of the device of the present invention, the pump 55 has a check function to prevent water from flowing back toward the bathtub 11 while the pump 55 is stopped, or a check valve is provided on the discharge side of the pump 55.

Furthermore, in the example shown in FIG. 3, a bypass pipe 58 is installed to communicate the discharge side of the pump 55 and the outlet side of the heat exchanger 15, and a three-way bypass pipe 58 is installed between the bypass pipe 58 and the piping on the discharge side of the pump 55. A valve 59 is installed to circulate the water in the bathtub 11 without passing through the heat exchanger 15 as needed, and there is no filler on the suction port side of the pump 55.

In the case of this second invention device, when there is no water in the bathtub 11 under the conditions that the power switch is turned on, the hot water tap 40 and the shower valve 41' are closed, and the gas main tap 30 is open,
The solenoid valve 18 is opened by the water level detector 3rd signal, and the 3-way valve 59 opens the bypass pipe 5th side and the discharge side of the pump 55.
The other side is closed, and the water supplied to the water supply pipe 23 flows through the hot water supply heat exchanger 16 - solenoid valve 1B - vacuum breaker valve 19 - check valve 57 - bath heat exchanger 15 and flows into the bathtub 11 from the upper torpedo. , this water flow is detected by the detector 24.56 and the main valve 33.
36 opens and each Iina 26 and 27 begin to burn.

Therefore, the water supplied to the bathtub 11 is transferred to the two heat exchangers 15.
．． 16 and flows into the bathtub 11, during which time the temperature of the hot water is adjusted by a hot water temperature sensor 22.25 by opening and closing each electromagnetic valve 32.35.

When the water level in the bathtub 11 reaches a constant water level, the solenoid valve 1st closes with a signal from the detector 3rd day. Therefore, the water flow stops and each main valve 3
3.36 closes and burners 26.27 go out.

In this state, when the hot water tap 40 or the shower valve 41' is opened, the supplied water passes only through the hot water heat exchanger 16 and is heated, and hot water comes out from the hot water tap 40 or the shower head 41, which is the same as in the first invention device. It is.

Further, when the bathtub 11 is full of water, reheating is performed by operating the circulation pump 55. In this case, the water in the lower part of the N bathtub 11 flows from the lower wood pipe through the filter 6o into the suction port of the pump 55, and from the discharge port passes through the heat exchanger 15 and flows into the bathtub 11 from the upper torpedo. When the detector 56 detects the water flow, the main valve 33 opens, the burner 26 is ignited, the circulating water is heated, and the water temperature is determined by the detector 22 by opening and closing the electromagnetic valve 32.

In addition, if there is a bypass pipe 5 days as shown in the illustrated example, the three-way valve 59 is switched to connect the discharge port of the pump 55 to the heat exchanger 15.
The bypass pipe 58 connects the pump outlet and the bathtub 1.
When the upper water pipe 1 is connected and the pump 55 is operated, a water flow is generated in the bathtub 11, and hair and the like mixed in the water in the bathtub 11 are removed by the filter 10.

As mentioned above, the second invention device has most of the same configuration as the first invention device, and has almost the same purpose and effect, but in the case of the second invention device, the bathtub 11 and Since water is forcibly circulated between the bath heat exchangers 15 by the circulation pump 55, the bath heat exchangers 15 can be installed at a higher location than the bathtub 11. Therefore, the heat exchanger 15 can be installed freely, and the heat exchanger 15 can be installed at a high position and the floor surface below can be effectively used. Also, when reheating the water in the bathtubs 1 and 1, water pressure is applied to the artificial side of the heat exchanger 1-5, but since there is a check valve 57, the water in the bathtub 11 is directed toward the hot water heat exchanger 16. This has the effect that there is no risk of sewage flowing in.

[Brief explanation of drawings]

, Figure 1 is a circuit diagram of a conventional hot water heater that also serves as a bathtub, Figure 2
Figures 3 and 3 show the hot water supply device for bathtub and hot water supply according to the present invention. Figure 2 is a circuit diagram of the first invention equipment, Figure 3 is a circuit diagram of the second invention equipment, and Figure 4 is a circuit diagram of the second invention equipment. FIG. 2 is an enlarged longitudinal cross-sectional side view showing an example of a vacuum breaker valve used in each device of the invention. DESCRIPTION OF SYMBOLS 11... Bathtub, 12... Case, 15... Heat exchanger for bath, 16... Heat exchanger for hot water supply, 17... Communication pipe, 18... Solenoid valve, 19... Vacuum breaker valve, 20・
... Valve, 21... Detector, 24.56... Flowing water detector, 26.27... Burner, 55... Circulation pump,
57...Check valve. Patent applicant Yoei Seisakusho Co., Ltd.

Claims (1)

[Scope of Claims] 1. It has a bath heat exchanger that circulates and heats the bath water by thermal convection, and a hot water heat exchanger that heats the water supply, and the outlet of the hot water heat exchanger and the bath heat A solenoid valve is installed in the middle of the communication pipe that communicates with the inlet of the bathtub, and a vacuum break valve is installed at a position higher than the highest water level of the bathtub. Provided with a valve that prevents water from flowing into the bathtub without passing through the bath heat exchanger, and provided with a water level detector that opens the solenoid valve until a constant water level is detected, and closes the solenoid valve when the constant water level is detected; The burner of each heat exchanger is ignited when the detector installed in the bath heat exchanger to detect running water and full water and the running water detector to detect running water to the hot water heat exchanger detect running water, full water, and running water, respectively. A water heater that doubles as a bathtub. 2. It has a bath heat exchanger that heats the bath water by forced circulation with a circulation pump, and a hot water heat exchanger that heats the water supply, and the outlet of the hot water heat exchanger and the population of the bath heat exchanger. In the middle of the communication pipe that communicates with the bathtub, there is a solenoid valve, a vacuum break valve located above the highest water level of the bathtub, a check valve that prevents the backflow of water from the bath heat exchanger to the vacuum break valve, and a communication pipe. A water level detector is installed in the bathtub that opens the solenoid valve until a constant water level is detected, and closes the solenoid valve when a constant water level is detected. When the flowing water detector detects flowing water to the exchanger and hot water heat exchanger, the burner of each heat exchanger is turned on.
A hot water heater that can be used for both wind and hot water pots.