JP5789905B1 - Bath chasing system - Google Patents

Abstract

The raw warm water supplied to the bathtub by the hot water bathtub supply pipe from the solar water heater is replenished by the hot water return pipe from the bathtub to the water heater, but it is worth the flow rate of natural circulation by the thermosyphon. Only the amount of heat can be obtained. From the above, it is an object to provide a reheating system for a bath that can increase the circulation amount in the reheating section and obtain a highly efficient heat amount equivalent to a large flow velocity. A hot water recirculation pipe branched from a hot water bathtub supply pipe from a solar water heater is connected to a hot water return pipe when the hot water is replenished, thereby increasing the height of the solar water heater. The head can be converted into forced circulation and high flow velocity in the reheating section, and high-efficiency heat can be obtained, and the amount of heat obtained can be doubled. [Selection] Figure 1

Description

The present invention can supply hot water of a solar water heater provided at a high position in the vertical direction of a building to the bathtub, increase the circulation amount in the reheating section, and obtain a highly efficient heat amount equivalent to a large flow rate. It provides a bath rebirth system.

In a solar water heating system that heats water using sunlight, a water tank that stores water, a heater that heats water in the water tank, a solar water heater that heats water using sunlight, and a water tank A circulation device that circulates water between the water heater and the solar water heater, circulates the water between the water tank and the solar water heater, and heats the water in the water tank in combination with a heater if necessary There is also a plan characterized by being able to. (For example, refer to Patent Document 1).

Conventional solar water heaters are mainly installed on the roof in sunlight, changing the sunlight energy into hot water and dropping it into a bath. Even if the temperature can only be raised to a reasonable temperature, there are currently solar water heater manufacturers that use it as bath water if it has been added as much energy as possible. (For example, refer nonpatent literature 1).

It has a temperature control function for kitchen cooking, toilets, and baths, and water heaters are widely used. When using in a bath, set it to the right temperature for the bath and drop it into the bath In addition, there is a function of reheating the lower hot water dropped from the solar water heater and a water heater as a recuperating part of the hot water cooled by the temperature drop of the dropped hot water. (For example, refer nonpatent literature 2).

Some solar water heaters have pressure resistance that can withstand tap water pressure and do not need to be installed at high places using tap water pressure, and can be connected to a water heater. (For example, refer nonpatent literature 3).

Japanese Patent Laid-Open No. 2003-139413

Asahi Solar Internet HP Solar Water Heater Noritz Internet HP product information bath water heater MMC Internet HP MMC SOLAR Inc.

When the conventional solar water heater as described above is used to supply hot water to the bathtub and retreat, it has the following problems.

Hot water that could only be raised to a warm temperature due to bad weather is supplied to the bathtub with the hot water bathtub supply pipe from the solar water heater, and it is chased through the hot water return pipe from the bathtub to the water heater. In the reheating section, natural circulation is generated by the thermosyphon, and only the amount of heat corresponding to the flow rate corresponding to the natural circulation amount can be obtained. From the above, it is an object to provide a reheating system for a bath that can increase the circulation amount in the reheating section and obtain a highly efficient heat amount equivalent to a large flow velocity.

In order to solve the above problems, the present invention includes the following means.

As a first means, a solar water heater provided at a high vertical position of the building, a bathtub, a hot water bathtub supply pipe from the solar water heater, a water heater, and a hot water return pipe from the bathtub to the water heater And a bath reheating system consisting of a reheating section consisting of a hot water supply pipe from the water heater to the bathtub,
Connect the hot water recirculation pipe branched from the hot water bathtub supply pipe to the hot water return pipe, and connect the hot water recirculation pipe to the hot water recirculation pipe between the connection position of the hot water recirculation pipe and the hot water reflow pipe It is provided.

As a second means, the valve is an electromagnetic valve, and the control device opens and closes the electromagnetic valve.

According to the bath reheating system according to claim 1, the hot water reheating pipe branched from the hot water bathtub supply pipe from the solar water heater is connected to the hot water return pipe from the bathtub, The high water head of the vessel becomes a forced circulation amount that is several times the natural circulation amount by the conventional thermosyphon, and increases the flow velocity of the reheating section, and the amount of heat obtained increases to a high efficiency that is double the flow velocity.
Further, the valve provided between the connection position of the hot water return pipe of the hot water return pipe according to claim 1 and the hot water return pipe and the hot water supply pipe is controlled as an electromagnetic valve according to claim 2. The device enables easy selection and operation of a highly efficient refueling system.

The bath reheating system according to claims 1 and 2 of the present invention achieves resource saving of fuel, shortens the time until the bath is taken, and the hot water remaining in the solar water heater after taking the bath It can also be used for effective pursuit of

It is a block diagram of the highly efficient reheating system of a bath using the solar water heater which concerns on Claim 1 of this invention. It is a block diagram of the reheating system of the bath of another embodiment using the solar water heater which concerns on Claim 1 of this invention. It is a block diagram of the highly efficient reheating system of a bath using the solar water heater which concerns on Claim 2 of this invention. It is a block diagram of the system which uses the solar water heater in a prior art, and reheats a bath.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

First, a system for reheating a bath using a solar water heater in the prior art will be described with reference to FIG.
FIG. 4 shows a solar water heater 1, a bathtub 2, a water heater 3, and a reheating unit 4, in an elevational and isometric manner, using a solar water heater in the prior art. . Solar water heater 1 and hot water bathtub supply pipe 8 from the solar water heater, hot water heater 3, hot water return pipe 1 from the bathtub to the water heater 1 and water heater In the bath reheating system constituted by the reheating section 4 composed of the hot water supply pipe 13 to the bathtub, the solar water heater supply water 21 is supplied from the water supply section 7 by the solar water heater supply water supply pipe 21. Water 22 is supplied to the solar water heater 1, heated by solar heat, and becomes hot water 9 from the solar water heater from the upper part of the solar water heater 1, and the hot water bathtub supply pipe from the solar water heater At 8, it is supplied to the bathtub 2 and appears as a hot water surface 36.
When the hot water supplied to the bathtub 2 is lukewarm, the temperature is raised in the reheating section 4 through the hot water return pipe 11 from the bathtub to the water heater.
When the temperature is raised, a density difference corresponding to the temperature difference occurs before and after that, and the flow of the hot water 14 supplied to the bathtub in a phenomenon called a thermosiphon is generated from the reheating section 4 toward the bathtub 2, but is a natural circulation. The amount of heat obtained in the reheating portion 4 is limited.

FIG. 1 is a configuration diagram of a highly efficient reheating system for a bath using a solar water heater according to claim 1 of the present invention.

Solar water heater 1 and hot water bathtub supply pipe 8 from the solar water heater, hot water heater 3, hot water return pipe 11 from the bathtub to the water heater and water heater In the bath reheating system comprising the reheating section 4 comprising the hot water supply pipe 13 from the hot water to the bathtub, the hot water recirculation pipe 10 branched from the hot water bathtub supply pipe 8 from the solar water heater is connected to the hot water. It shows that a valve is provided between the connecting position of the hot water return pipe 10 in the hot water return pipe and the bathtub 2 and the hot water supply pipe 10 connected to the return pipe 11.

When reheating using the hot water recirculation pipe 10 branched from the hot water bathtub supply pipe 8 from the solar water heater, the solar water heater hot water valve 29 is closed, and the return hot water pipe from the bathtub to the water heater It is obtained by closing the valve 31 and opening the hot water recirculation piping valve 32. At the time of reheating, from the upper part of the solar water heater 1 to the connection part of the hot water return pipe 11 branched from the hot water bathtub supply pipe 8 from the solar water heater to the hot water return pipe 11 from the bathtub. The height acts as a position head from the energy point of view and acts on the chasing part 4, and the position head is converted into a speed head, and the amount of forced circulation is several times the natural circulation amount of the conventional thermosiphon. The flow rate of the fired part will be increased, and the amount of heat obtained will increase to a high efficiency that is double the flow rate.

FIG. 2 is a configuration diagram of a bath reheating system according to another embodiment using a solar water heater according to claim 1 of the present invention. The energy obtained as the position head by shortening as much as possible the hot water supply pipe 8 branched from the hot water bathtub supply pipe 8 from the solar water heater and the hot water bathtub supply pipe 8 from the solar water heater. It is another embodiment made to work on the reheating part 4 without being eaten by piping resistance.

FIG. 3 is a configuration diagram of a highly efficient bath reheating system using a solar water heater according to claim 2 of the present invention.
It is connected to the hot water return pipe 11 and shows that the solenoid valve is provided between the connecting position of the hot water return pipe 10 in the hot water return pipe and the bathtub 2 and in the hot water supply pipe 10.
When reheating using the hot water recirculation pipe 10 branched from the hot water bathtub supply pipe 8 from the solar water heater, the solar water heater hot water valve 29 is closed, and the return hot water pipe from the bathtub to the water heater It is obtained by closing the solenoid valve 33 and opening the hot water recirculation piping solenoid valve 34. These are other embodiments in which the switch & control device 5 and the control pipe 35 are used to easily select an operation such as retreating, stopping retreating, and returning to the original state.

DESCRIPTION OF SYMBOLS 1 Solar water heater 2 Bathtub 3 Water heater 4 Reheating part 5 Switch & control apparatus 6 Fuel gas supply part 7 Water supply part 8 Hot water bathtub supply piping 9 from solar water heater 10 Hot water from solar water heater 10 Hot water Reheating pipe 11 Hot water return pipe from bathtub to water heater 12 Return hot water from bathtub to water heater 13 Supply pipe to bathtub 14 Hot water supplied to bathtub
15 Supply water piping
16 Supply water
17 Water heater supply water piping
18 Water heater supply water
19 Supply hot water piping from the water heater to the bathtub 20 Supply hot water from the water heater to the bathtub
21 Solar Water Heater Supply Water Supply Pipe 22 Solar Water Heater Supply Water Supply
23 Bath supply water pipe 24 Bath supply water 25 Fuel gas pipe 26 Fuel gas 27 Fuel gas solenoid valve
28 Hot water temperature control valve 29 Solar water heater warm water valve 30 Supply water valve
31 Returning hot water piping valve from the bathtub to the water heater 32 Hot water reheating piping valve 33 Returning the hot water piping from the bathtub to the water heating solenoid valve 34 Hot water recirculation piping solenoid valve 35 Control piping 36 Hot water surface

Claims (2)

Solar water heater, bathtub, hot water bathtub supply pipe from the solar water heater, water heater, hot water return pipe from the bathtub to the water heater, and water heater to the bathtub In a bath reheating system composed of reheating parts consisting of hot water supply piping,
Connected to the hot water return pipe to the hot water return pipe in order to increase the flow rate of the hot water by the speed head converted from the position of the solar water heater from the hot water bathtub supply pipe, A bath reheating system, characterized in that a valve is provided between the connection position of the hot water recirculation piping and the bathtub, and in the hot water recirculation piping. The bath reheating system according to claim 1, wherein the valve is an electromagnetic valve and the electromagnetic valve is opened and closed by a control device.

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