JP2010127490A - Hot water supply device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot water supply device capable of effectively utilizing wasted water which has been wasted until a time when the water is heated to a prescribed temperature. <P>SOLUTION: The hot water supply device includes a water heater 1 connected with a water source and including a heating means, a faucet hot water supply pipe 2 connecting a faucet 20 and a hot water supply section of the water heater 1, a tank 3, a pipe 4 for storage connecting the tank 3 and the hot water supply section of the water heater 1, a temperature detecting means (thermostat 5) detecting whether a hot water supply temperature of the water heater 1 is higher than a prescribed temperature or not, and a switching means (three-way solenoid valve 6) switching the hot water supply from the water heater 1 to the faucet hot water supply pipe 2 or the pipe 4 for storage according to a detection by the temperature detecting means. The switching means switches so that the hot water from the water heater 1 is supplied to the pipe 4 for storage when the temperature detecting means does not detect the prescribed temperature or higher, and the hot water from the water heater 1 is supplied to the faucet hot water supply pipe 2 when the temperature detecting means detects the prescribed temperature or higher. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hot water supply apparatus.

  Conventionally, a water heater is connected to a water source and provided with a heating means, and hot water discharged from the water heater is used by being discharged from a currant or supplied to other devices.

  The user operates the operation unit to use hot water of a predetermined temperature, so that the hot water supply device starts taking water from the water source and starts heating by the heating means, and hot water is discharged from the curan or other Hot water is supplied to the equipment.

By the way, at the beginning of use of the water heater, it takes time for the temperature of discharged hot water to rise to a predetermined temperature, and hot water discharged below the predetermined temperature during that time is not used and discarded. Therefore, the heat used for heating between the water and the above is wasted, which is not preferable from the viewpoint of resource saving and energy saving, and water bills and utility costs have increased.
JP 2002-95887 A

  The present invention was invented in view of the above-mentioned conventional problems, and the object of the present invention is to effectively use waste water that has been discarded until it is heated to a predetermined temperature without being discarded. It is an object of the present invention to provide a hot water supply device capable of performing the above.

  In order to solve the above-mentioned problem, in the hot water supply apparatus according to claim 1, the hot water heater 1 connected to the water source and provided with heating means, the currant hot water pipe 2 connecting the curan 20 and the hot water outlet of the hot water heater 1. And a tank 3, a storage pipe 4 connecting the tank 3 and the hot water outlet of the water heater 1, and temperature detection means (thermostat 5) for detecting whether or not the hot water temperature of the water heater 1 is equal to or higher than a predetermined temperature. ) And switching means (three-way solenoid valve 6) for switching whether the hot water from the hot water heater 1 is supplied to the currant hot water supply pipe 2 or the storage pipe 4 upon detection by the temperature detection means. The means supplies hot water from the water heater 1 to the storage pipe 4 when the temperature detection means does not detect a predetermined temperature or higher, and the temperature detection means detects a temperature higher than the predetermined temperature. Supplies hot water from the water heater 1 to the Karan hot water pipe 2 It is characterized in that to switch to so that.

  By adopting such a configuration, the waste water that has been discarded until the hot water coming out of the water heater 1 is heated to a predetermined temperature can be temporarily stored in the tank 3 and effectively used later. It is.

  Further, the invention according to claim 2 is the invention according to claim 1, wherein the remaining hot water supply pipe 82 for supplying the bathtub 8, the remaining hot water of the bathtub 8 to the device (washing machine 7) that uses the discarded water, and the remaining And a fine bubble generating device 9 provided in the middle of the hot water supply pipe 82, wherein fine bubbles are mixed into the remaining hot water in the bathtub 8 and supplied to the device.

  By setting it as such a structure, the remaining hot water in which the fine bubble was mixed can be supplied to an apparatus.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the fine bubble generating device 9, the device (washing machine 7) using waste water, the device and the fine bubble generating device 9 are provided. A path for reciprocating circulation is formed, and water mixed with fine bubbles is supplied to the device.

  By setting it as such a structure, the water in which the fine bubble was mixed can be repeatedly supplied to an apparatus.

  The invention according to claim 4 is characterized in that, in the invention according to any one of claims 1 to 3, the remaining hot water in the remaining hot water supply pipe 82 is discharged after the fine bubble generating device 9 is used. It is what.

  By adopting such a configuration, it is possible to prevent dirty water from being used the next time the fine bubble generating device 9 is used.

  In the present invention, it is possible to effectively use waste water without throwing it away, and it is possible to save resources and energy, and reduce water bills and utility costs.

  Hereinafter, an embodiment of the present invention will be described with reference to FIG.

  The hot water supply apparatus of the present invention is composed mainly of a water heater 1, a tank 3, temperature detection means, and switching means.

  Although not shown, the water heater 1 includes a heating means, an operation unit that performs an operation for discharging hot water of a predetermined temperature, and a control unit that includes a microcomputer. A water source (this embodiment) is provided via a water supply pipe. It is connected to the water supply in the form. Then, in response to an operation at the operation unit, the control unit controls water intake and stop from the water source by opening and closing an electromagnetic valve provided in the middle of the water supply pipe, operation and stop of the heating means, and adjustment of the heating amount. is doing. The other end of the hot water supply pipe 11 connected to the hot water outlet of the water heater 1 is connected to the three-way solenoid valve 6.

  The three-way solenoid valve 6 includes three ports, a first port 6 a to a third port 6 c, and a hot water supply pipe 11 is connected between the first port 6 a and the hot water outlet of the water heater 1.

  Moreover, the curan hot water supply pipe 2 is connected between the second port 6b of the three-way solenoid valve 6 and the curan 20 provided in the bathroom.

  A storage pipe 4 is connected between the third port 6 c of the three-way solenoid valve 6 and the tank 3.

  The hot water supply pipe 11 has a temperature detecting means for detecting whether or not the temperature of the hot water coming out of the water heater 1 is equal to or higher than a predetermined temperature, and the hot water discharged from the water heater 1 is detected by the temperature detecting means. And a switching means for switching between the hot water supply pipe 2 and the storage pipe 4 to be supplied. In this embodiment, the thermostat 5 as the temperature detection means and the three-way electromagnetic valve 6 as the switching means are provided. Although provided, the thermostat 5 also bears a part of the function as the switching means.

  The tank 3 is connected to the downstream end of the waste water supply pipe 30, and the upstream end of the waste water supply pipe 30 is connected to a water intake portion of the washing machine 7 as a device that uses the waste water. In the middle of the waste water supply pipe 30, a two-way solenoid valve 31 and a pump 32 are provided in order from the tank 3 side to the washing machine 7 side. The pump 32 may be a built-in pump when the washing machine 7 is built in, or may be an external pump.

  Moreover, in this embodiment, while the remaining hot water intake 81 is formed in the bottom face of the bathtub 8, the part between the two-way solenoid valve 31 and the pump 32 of the waste water supply piping 30, and the remaining hot water intake 81 Between the two, a remaining hot water supply pipe 82 provided with a two-way electromagnetic valve 83 is connected in the middle.

  The operation will be described below.

  When hot water is discharged from the curan 20, the tap water is heated by the hot water heater 1, but at the beginning of use, it takes time for the temperature of the discharged hot water to rise to a predetermined temperature, during which a predetermined time is required. Even if hot water (hereinafter referred to as “waste water”) having a temperature lower than this temperature is discharged from the water heater 1 and discharged from the currant 20, it is not used by the user.

  Therefore, in order to avoid the wasted water discharged from the currant 20 being discarded and wasted before the hot water coming out of the water heater 1 rises to a predetermined temperature, Until the temperature rises, the thermostat 5 does not detect a predetermined temperature or higher, the first port 6a and the third port 6c of the three-way solenoid valve 6 are connected, the two-way solenoid valve 31 is closed, Waste water discharged from the vessel 1 is stored in the tank 3 via the storage pipe 4. When the hot water coming out of the water heater 1 rises to a predetermined temperature, the thermostat 5 detects a temperature higher than the predetermined temperature, and connects the first port 6a and the second port 6b of the three-way solenoid valve 6 to each other. The hot water of temperature is discharged from the currant 20.

  In the present embodiment, the thermostat 5 and the three-way solenoid valve 6 constitute a temperature detection means and a switching means. However, a temperature sensor is provided as the temperature detection means, and a control unit comprising a microcomputer is provided as the switching means. The temperature detecting means and the switching means are not particularly limited. Furthermore, in the present embodiment, the hot water supply from the water heater 1 to the hot water supply pipe 2 and the hot water supply to the storage pipe 4 are switched by the three-way solenoid valve 6. A two-way solenoid valve may be provided in each of the hot water supply pipe 2 and the storage pipe 4, and switching may be performed by opening and closing both the two-way solenoid valves.

  Waste water stored in the tank 3 is used in the washing machine 7. In use, the pump 32 is driven, the two-way solenoid valve 31 of the waste water supply pipe 30 is opened, the two-way solenoid valve 83 of the remaining hot water supply pipe 82 is closed, and the waste water supply pipe 30 is connected. Waste water stored in the tank 3 is supplied to the washing machine 7.

  Moreover, in this embodiment, the remaining hot water of the bathtub 8 can be supplied to the washing machine 7 as needed. In this case, the remaining water supply pipe 82 is driven by driving the pump 32 and closing the two-way electromagnetic valve 31 of the waste water supply pipe 30 and opening the two-way electromagnetic valve 83 of the remaining hot water supply pipe 82. The remaining hot water in the bathtub 8 is supplied to the washing machine 7 via

  As a general usage in the case of the washing machine 7, first, the remaining hot water in the bathtub 8 is supplied to the washing machine 7, the remaining hot water is used for washing with the detergent, and then the water is stored in the tank 3. Rinse with waste water or tap water. Of course, other uses are also acceptable. Waste water stored in the tank 3 is basically the same as tap water, but rather is heated slightly, so it is cleaner than tap water and suitable for rinsing.

  In the present embodiment, the device that uses waste water has been described as the washing machine 7. However, the present invention is not limited to the washing machine 7, and the waste water stored in the tank 3 may be used for purposes other than washing.

  Moreover, although the currant 20 of this embodiment is provided in the bathroom in order to discharge hot water to the bathtub 8, it may be provided in a washroom, a cooking room, etc., and is not specifically limited.

  By adopting the configuration as described above, it is possible to effectively use the discarded water that has been thrown away until the hot water discharged from the water heater 1 is heated to a predetermined temperature. It is possible to reduce water bills and utility costs.

  Next, other embodiments will be described with reference to FIGS. 2 to 4. The same components as those in the above embodiment are denoted by the same reference numerals, description thereof will be omitted, and different portions will be mainly described.

  In the present embodiment, a three-way solenoid valve 84 is provided in the middle of the remaining hot water supply pipe 82 instead of the two-way solenoid valve 83, and the first port 84 a and the remaining hot water intake port 81 of the three-way solenoid valve 84 are provided. The upstream pipe 82a of the remaining hot water supply pipe 82 is connected between the second hot water supply pipe 82 and the downstream pipe 82b of the remaining hot water supply pipe 82 is connected between the second port 84b and the water intake portion of the washing machine 7. . In addition, a discharge port is formed in the bathtub 8, and a bathtub discharge pipe 86 is connected between the third port 84 c of the three-way solenoid valve 84 and the discharge port.

  And in the middle of the upstream piping 82a, the pump 85 and the fine bubble generator 9 are provided from the bathtub 8 side to the three-way solenoid valve 84 side.

  Although the detailed description is omitted, the microbubble generator 9 mixes micrometer-sized or nanosized microbubbles in the bath water, and effects such as a heat retaining effect, a cleaning effect, and a massage effect are obtained.

  In addition, the upstream end of the drain pipe 71 is connected to the drainage portion of the washing machine 7, the reflux pipe 73 branches off from the middle of the drain pipe 71, and the downstream end of the reflux pipe 73 is the remaining hot water supply pipe 82. This is connected to the upstream side portion of the pump 85 of the upstream side piping 82a. The reflux pipe 73 is provided with a two-way electromagnetic valve 74 in the middle, and a two-way solenoid valve 72 is provided on the downstream side of the portion of the drain pipe 71 where the reflux pipe 73 is branched.

  The operation will be described below.

  Also in this embodiment, when the hot water is to be discharged from the currant 20, the three-way solenoid valve 6 is switched until the hot water coming out of the water heater 1 rises to a predetermined temperature as shown in FIG. The 1-port 6a and the third port 6c are communicated with each other, the two-way solenoid valve 31 is closed, the waste water discharged from the water heater 1 is stored in the tank 3 via the storage pipe 4, and the hot water discharged from the water heater 1 is predetermined. As shown in FIG. 2 (b), the first port 6 a and the second port 6 b of the three-way solenoid valve 6 are communicated to discharge hot water having a predetermined temperature from the currant 20. The thick line part in a figure shows piping with a flow.

  In addition, in order to use the waste water stored in the tank 3 in the washing machine 7, the pump 32 is driven as shown in FIG. 3A to open the two-way solenoid valve 31 of the waste water supply pipe 30. The second port 84 b of the three-way solenoid valve 84 of the remaining hot water supply pipe 82, the two-way solenoid valve 72 of the drain pipe 71, and the two-way solenoid valve 74 of the reflux pipe 73 are closed, and the tank is disposed via the discarded water supply pipe 30. The waste water stored in 3 is supplied to the washing machine 7. The usage methods shown in FIGS. 2A, 2B, and 3A are basically the same as those in the embodiment shown in FIG.

  Next, usage specific to the present embodiment will be described.

  In order for the bather in the bathtub 8 to generate fine bubbles in the bath water, the pump 85 is driven as shown in FIG. 3B, and the first three-way solenoid valve 84 of the remaining hot water supply pipe 82 is driven. The port 84a and the third port 84c are communicated, the two-way electromagnetic valve 74 of the reflux pipe 73 is closed, a path for reciprocating circulation between the bathtub 8 and the fine bubble generating device 9 is formed, and bath water in which fine bubbles are mixed Is supplied to the bathtub 8.

  A warming effect that wraps the bather with fine bubbles and warms up inside the body is obtained, and cleaning effect by micro vibration generated when the fine bubbles collide with the body and ultrasonic waves generated when the fine bubbles burst In addition, a massage effect can be obtained, and further, a visual effect of making the bath water cloudy with fine bubbles can be obtained.

  Further, the remaining hot water mixed with fine bubbles can be supplied to the washing machine 7, and the pump 85 is driven as shown in FIG. 4A, and the first port of the three-way solenoid valve 84 of the remaining hot water supply pipe 82. 84a is communicated with the second port 84b, the two-way solenoid valve 74 of the reflux pipe 73 is opened, and the two-way solenoid valve 72 of the drain pipe 71 is closed to form a path from the bathtub 8 to the washing machine 7. At the same time, a path for reciprocating circulation between the washing machine 7 and the fine bubble generating device 9 is formed, and bath water mixed with fine bubbles is supplied to the washing machine 7.

  Dirt is removed by the fine vibration generated when the fine bubbles collide with the laundry and the ultrasonic waves generated when the fine bubbles are repelled, and a cleaning effect is obtained.

  Further, when the fine bubble generating device 9 is used, a circulating path is formed, the same water is used many times, and dirt is accumulated. For this reason, after using a microbubble generator, drainage mode is performed. In the drainage mode, as shown in FIG. 4 (b), the pump 85 is driven, the first port 84 a and the second port 84 b of the three-way solenoid valve 84 of the remaining hot water supply pipe 82 are communicated with each other. The directional solenoid valve 74 is closed and the two-way solenoid valve 72 of the drain pipe 71 is opened, and dirty water is discharged from the remaining hot water supply pipe 82 and the drain pipe 71.

  Thereby, it is possible to prevent dirty water from being used the next time the fine bubble generator 9 is used.

  In this embodiment, the fine bubble generating device 9 is provided in the middle of the remaining hot water supply pipe 82. However, the waste water supply pipe 30 and a water supply pipe that supplies water directly from the water source to the washing machine 7 are not shown. You may provide in the middle of the water supply line which supplies water to the washing machine 7.

It is a block diagram of one Embodiment of this invention. In the block diagram of other embodiment, (a) is explanatory drawing in the case of storing the waste water from a water heater in a tank, (b) is the case where hot water of predetermined temperature from a water heater is discharged from a currant It is explanatory drawing of. In the same configuration diagram, (a) is an explanatory diagram when the waste water stored in the tank is supplied to the washing machine, and (b) is an explanatory diagram when fine bubbles are generated in the bath water. It is a block diagram same as the above, (a) is an explanatory view when supplying the remaining hot water mixed with fine bubbles to the washing machine, (b) is an explanatory view of the drainage mode.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water heater 11 Hot water supply pipe 2 Karan hot water supply pipe 20 Karan 3 Tank 30 Waste water supply piping 31 Two-way solenoid valve 32 Pump 4 Storage pipe 5 Thermostat 6 Three-way solenoid valve 6a First port 6b Second port 6c Third port 7 Washing machine 71 Drain pipe 72 Two-way solenoid valve 73 Recirculation pipe 74 Two-way solenoid valve 8 Bathtub 81 Remaining hot water intake 82 Remaining hot water supply piping 82a Upstream piping 82b Downstream piping 83 Two-way solenoid valve 84 Three-way solenoid valve 84a 1st port 84b 2nd port 84c 3rd port 85 Pump 86 Bath discharge pipe 9 Fine bubble generator

Claims (4)

  A water heater connected to a water source and provided with heating means, a curan hot water pipe connecting the curan and the hot water outlet of the hot water heater, a tank, a storage pipe connecting the tank and the hot water outlet of the hot water heater, and a water heater Temperature detecting means for detecting whether or not the temperature of the hot water is higher than a predetermined temperature, and whether the hot water from the water heater is supplied to the Karan hot water supply pipe or the storage pipe in response to detection by the temperature detecting means. A switching means for switching, and when the temperature detection means does not detect a predetermined temperature or higher, the switching means supplies the hot water from the hot water heater to the storage pipe, and the temperature detection means detects the temperature higher than the predetermined temperature. When detected, a hot water supply apparatus that switches to supply hot water from a water heater to a currant hot water supply pipe.   A tub, a remaining hot water supply pipe that supplies the remaining hot water in the tub to a device that uses the water, and a fine bubble generator provided in the middle of the remaining hot water supply pipe, in which fine bubbles are mixed into the remaining hot water in the tub The hot water supply device according to claim 1, wherein the hot water supply device is supplied to the device.   A microbubble generator, a device using waste water, a path for reciprocating circulation between the device and the microbubble generator are formed, and water mixed with microbubbles is supplied to the device. The hot water supply apparatus according to 1 or 2.   The hot water supply device according to any one of claims 1 to 3, wherein the hot water in the remaining hot water supply pipe is discharged after using the fine bubble generating device.

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