JPH0718157U - Hot water supply system - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a hot water supply system capable of expanding the range of installation locations and improving operability. [Structure] A hot water storage tank 21 for storing boiled water, a heating device 10 having an electric heater for boiling the water, and an upper part for connecting the upper part of the hot water storage tank 21 and the upper part of the heating device 10 to form a first flow path. A pipe 23, a lower pipe 24 that connects the lower part of the hot water storage tank 21 and the lower part of the heating device 10 to form a second flow path, a control device 22 that controls the supply of electricity to the electric heater, and a first flow path. The heating device 10 and the control device 22 are installed in a passage, and have a temperature flow control valve that opens the heating device 10 when the boiling water reaches a predetermined temperature and sends the boiling water to a hot water storage tank. The hot water storage tank 21 was installed in a place different from the place, and the shape of the hot water storage tank 21 was adapted to the installation location.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hot water supply system in which hot water boiled by an electric heater is stored in a hot water storage tank.

[0002]

[Prior art]

 An electric water heater is a device for boiling water using electric power. An example of this electric water heater is shown in FIG. This electric water heater includes a hot water storage tank 201 for storing boiled water, a heating pipe 203 for boiling the hot water with an electric heater 202 built therein, and a control unit 204 for controlling supply of electricity to the electric heater 202. The upper pipe 205 connects the upper part of the hot water storage tank 201 to the upper part of the heating pipe 203, and the lower pipe 206 connects the lower part of the hot water storage tank 201 to the lower part of the heating pipe 203. The upper pipe 205 is provided with a flow rate control valve 207 in the middle thereof. The flow rate control valve 207 limits the amount of water that moves from the heating pipe 203 to the hot water storage tank 201 so that the boiled water reaches a predetermined temperature. The outer casing 208 covers the hot water storage tank 201, the heating pipe 203, and the control unit 204 to integrate them.

In such an electric water heater, hot water having a predetermined temperature is stored in the hot water storage tank 201 so that the hot water can be used anytime.

[0004]

[Problems to be solved by the device]

 By the way, an electric water heater as shown in FIG. 8 is installed, for example, in a building. At this time, since the electric water heater is installed in a place where it does not disturb people, the place where the electric water heater is installed is limited. Further, since the hot water storage tank 201 in the exterior 208 is long in the vertical direction, there is a possibility that the hot water storage tank 201 will fall over in the event of a ground earthquake, etc., and fall prevention work is required during installation.

When the electric water heater is installed outside the building, it is necessary to take measures to protect the control unit 204 from a bad environment such as a change in weather. In addition, when the control unit 204 is adjusted, the user goes out of the building, which deteriorates the operability.

An object of the present invention is to provide a hot water supply system which eliminates such drawbacks and can expand the range of installation places and improve operability.

[0007]

[Means for Solving the Problems]

 In order to achieve the object, the present invention connects a hot water storage tank for storing boiled water, a heating device having an electric heater for boiling the water, and an upper part of the hot water storage tank and an upper part of the heating device by connecting the first flow path. , A lower pipe for connecting the lower part of the hot water storage tank and the lower part of the heating device to form the second flow path, a control device for controlling the supply of electricity to the electric heater, and a first flow The location where the heating device and the control device are installed A hot water storage tank was installed in a different place, and the shape of the hot water storage tank was adapted to the installation location.

In the present invention, the hot water storage tank may be installed under the floor of the building, under the stairs in the building, or on the projecting portion of the building. Further, in this invention, the temperature flow control valve may be a wax valve.

[0009]

[Action]

 With this configuration, the hot water storage tank is installed separately from the heating device and control device. Since the hot water storage tank does not require various devices such as electric heaters, it is installed in a place where people cannot enter or leave it, or where it does not interfere with people, such as under the floor of a building, on a veranda, or under the stairs in a building.

If a wax valve having a simple structure is used as the temperature / flow rate control valve, the occurrence of failure can be suppressed.

[0011]

【Example】

 Next, an embodiment of this invention will be described with reference to the drawings.

[First Embodiment] FIG. 1 is a schematic view showing a first embodiment of the present invention. This hot water supply system has a horizontally long heating device 10 installed at an installation location A, a control device 22 also installed at the location A, and a horizontal installation at a location B different from the installation location A. An elongated hot water storage tank 21, an upper pipe 23 that connects the upper part of the heating device 10 to the upper part of the hot water storage tank 21 to form the first flow path, and a lower part of the heating device 10 to the lower part of the hot water storage tank 21. And a lower tube 24 that forms a second flow path.

As shown in FIG. 2, the heating device 10 has a hollow shape, and is provided with a wax valve 11 as a temperature flow rate control valve at a connection portion with the upper pipe 23, and has a wax valve 11 for boiling water therein. An electric heater 12 is provided.

As shown in FIG. 3A, the wax valve 11 includes a temperature detecting portion 11B having a telescopic portion 11A at its tip and a valve portion 11D which is in a fully closed state by the urging force of a spring 11C. When the hot water temperature detected by the temperature detection unit 11B reaches a predetermined temperature, as shown in FIG. 3B, the expansion / contraction unit 11A extends with respect to the urging force of the spring 11C, and the valve unit 11D is fully opened. The wax valve 11 has such a simple structure.

The hot water storage tank 21 has an upper pipe 23 in the upper part and a lower pipe 24 in the lower part, and does not have consumables such as electric parts, and thus has a simple structure.

The control device 22 includes a microcomputer (not shown) having a central processing unit and a storage unit inside. The control device 22 controls to start supplying electricity to the electric heater 12 at a preset time, and to stop supplying electricity when boiling a predetermined amount of hot water.

Next, the operation of the first embodiment will be described.

When the wax valve 11 of the electric water heater is in the fully closed state, the electric heater 12 in the heating device 10 boils hot water. When the hot water reaches a predetermined temperature, the wax valve 11 detects the hot water temperature and opens fully. As a result, the hot water in the heating device 10 naturally moves to the hot water storage tank 21 by convection. That is, the hot water of the heating device 10 flows into the upper part of the hot water storage tank 21 through the upper pipe 23. The hot water storage tank 21 stores this hot water as high-temperature water 121 at the top. At the same time, the low temperature water 122 in the lower part of the hot water storage tank 21 flows into the heating device 10 through the lower pipe 24. As a result, the temperature of the hot water in the heating device 10 is lowered, the wax valve 11 is fully closed, and the previous operation is repeated again.

In the first embodiment, the hot water storage tank 21 is installed in a place B 2 different from the heating device 10 and the control device 22. Moreover, since consumables such as electric parts are not used in the hot water storage tank 21, the structure of the hot water storage tank 21 is simplified and maintenance is unnecessary. As a result, the installation location of the hot water storage tank 21 can be selected in a wide range.

Although the heating device 10 and the hot water storage tank 21 which are horizontally long are used in the first embodiment, the present invention is not limited to this. For example, the hot water supply system shown in FIG. 4 may be used.

This hot water supply system is installed in an installation place A, a vertically long heating device 10 E, a control device 22 E which is also installed in the place A, and a place B different from the installation place A. A vertically long hot water storage tank 21E, an upper pipe 23E connecting the upper part of the heating device 10E to the upper part of the hot water storage tank 21E, and a lower pipe 24 connecting the lower part of the heating device 10E to the lower part of the hot water storage tank 21E. Equipped with. The heating device 10E is provided with a wax valve 11E at the connecting portion with the upper pipe 23E and an electric heater 12E inside.

This hot water supply system may be used in the same manner as the system of FIG.

Further, heating device 10E and hot water storage tank hot water storage tank 21E, and heating device 10 and hot water storage tank 21 may be combined. By combining these, the installation location can be selected in a wider range.

[Second Embodiment] FIG. 5 is a schematic view showing a second embodiment of the present invention. In this hot water supply system, the hot water storage tank 41 is installed under the floor of the building. For this reason, the hot water storage tank 41 has a horizontally long shape. Further, the heating device 30 is arranged outside the building, and the control device 42 is arranged indoors.

The upper pipe 43 and the lower pipe 44 connect the heating device 30 to the hot water storage tank 41, as in the first embodiment. The heating device 30 is provided with the same wax valve 31 as that of the first embodiment at a joint portion with the upper pipe 43, and an electric heater 32 inside. The tables 45, 45 and the tables 46, 46 support the heating device 30 and the hot water storage tank 41, respectively. The control device 42 for controlling the electric heater 32 is installed in a place where the user can easily operate it, for example, on the wall in the room.

In this hot water supply system, the hot water storage tank 41, which does not require maintenance, is installed in a part under the floor where people do not come and go, so that it does not disturb people.

Further, since the shape of the hot water storage tank 41 is laterally long, it is possible to prevent the hot water storage tank 41 from falling.

Furthermore, since the heating device 30 is installed outside the building, the maintenance and inspection work of the heating device 30 can be simplified.

[Third Embodiment] FIG. 6 is a schematic view showing a third embodiment of the present invention. This hot water system is installed under the stairs in the building. For this reason, the hot water storage tank 61 has a triangular shape.

The upper pipe 63 and the lower pipe 64 connect the heating device 50 to the hot water storage tank 61. The heating device 50 is provided with a wax valve 51 at the joint with the upper pipe 63 and an electric heater 52 inside. The fixtures 65, 65 attach the heating device 50 to the hot water storage tank 61, and the bases 66, 66 support the hot water storage tank 61. The control device 62 that controls the electric heater 52 is installed on a wall in the room or the like.

In the third embodiment, since the hot water supply system is installed under the stairs in the building, the useless space in the building can be effectively used.

Although the heating device 50 is attached to the hot water storage tank 61 in the third embodiment, the present invention is not limited to this, and the heating device 50 may be attached to another room.

[Fourth Embodiment] FIG. 7 is a schematic view showing a fourth embodiment of the present invention. This hot water supply system is installed on the projecting part of the building, for example, on the balcony side of the building. For this reason, the heating device 70 and the hot water storage tank 81 are vertically long.

The upper pipe 83 and the lower pipe 84 connect the heating device 70 to the hot water storage tank 81. The heating device 70 is provided with a wax valve 71 at the joint with the upper pipe 83 and an electric heater 72 inside. Further, the fixtures 85, 85 attach the heating device 70 to the hot water storage tank 81, and the stands 86, 86 support the hot water storage tank 81. The control device 82 that controls the electric heater 72 is installed on a wall in the room or the like.

In the fourth embodiment, since the hot water storage tank 81 is installed on the balcony side of the building, the space in the building required for installation can be reduced. Further, since it is installed on the side of the balcony on the building side, the hot water storage tank 81 can be made large.

[0036]

[Effect of device]

 As described above, according to the present invention, a hot water storage tank that does not require a device for heating or a device for circulating hot water can be installed in a place where it does not interfere with people, such as under the floor of a building or on a balcony of a building. It can be installed in a place where no one can enter or leave.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a heating device.

FIG. 3 is a diagram showing an example of a wax valve.

FIG. 4 is a diagram showing an application example of the first embodiment.

FIG. 5 is a conceptual diagram showing a second embodiment of the present invention.

FIG. 6 is a conceptual diagram showing a third embodiment of the present invention.

FIG. 7 is a conceptual diagram showing a fourth embodiment of the present invention.

FIG. 8 is a diagram showing an example of an electric water heater.

[Explanation of symbols]

 10 Heating Device 21 Hot Water Storage Tank 22 Control Device 23 Upper Pipe 24 Lower Pipe

Claims (5)

[Scope of utility model registration request] 1. A hot water storage tank for storing boiled hot water, a heating device having an electric heater for boiling the hot water, and an upper part for connecting the upper part of the hot water storage tank and the upper part of the heating device to form a first flow path. A pipe, a lower pipe for connecting a lower portion of the hot water storage tank and a lower portion of the heating device to form a second flow passage, a control device for controlling supply of electricity to the electric heater, and the first flow passage And a temperature flow control valve provided therein, which opens when the boiling water of the heating device reaches a predetermined temperature and sends the boiling water to the hot water storage tank, and the heating device and the control device are installed. A hot water supply system in which the hot water storage tank is installed in a place different from the place and the shape of the hot water storage tank is adapted to the installation location. 2. The hot water supply system according to claim 1, wherein the hot water storage tank is installed under a floor of a building. 3. The hot water supply system according to claim 1, wherein the hot water storage tank is installed under a staircase in a building. 4. The hot water supply system according to claim 1, wherein the hot water storage tank is installed on a projecting portion of a building. 5. The hot water supply system according to claim 1, 2, 3, or 4, wherein the temperature flow control valve is a wax valve.