JP2008232555A - Hot water storage type water heater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot water storage type water heater allowing the use of a mist generator and other hot water supply terminals without needing to provide another heat source for each terminal, and carrying out optimal hot water temperature control to the other hot water supply terminals even if supplying hot water to the mist generator. <P>SOLUTION: The hot water storage type water heater comprises a hot water storage tank 1 for storing hot and cold water; the mist generator which jets hot and cold water in a mist state; a bathtub 33; a bathtub hot water supply pipe 11 supplying the bathtub 33 with high temperature water in the hot water storage tank 1; and a mist pipe 12 supplying the mist generator 9 with the high temperature water in the hot water storage tank 1. The mist pipe 12 is branched from the bathtub hot water supply pipe 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a hot water storage type water heater that can be connected to a mist generator.

A conventional mist generating device supplies water to a hot water supply device from a water supply pipe, and provides mist to a bathroom or the like by mixing hot water of the hot water supply device and water from a water supply source (for example, Patent Documents) 1)
JP 2005-342087 A

  However, in the conventional configuration, a heat source dedicated to the mist generating device is provided and is configured with a heat source different from the bathtub in the bathroom, etc. End up.

  The present invention relates to a hot water storage type water heater that enables the use of a mist generator and other hot water supply terminals without the need to provide a separate heat source for each terminal, even if hot water is supplied to the mist generator. It is possible to provide a hot water storage type water heater that can optimally control the temperature of the hot water supply terminal.

  In order to solve the above-described conventional problems, a hot water storage type water heater of the present invention includes a hot water storage tank for storing hot water, a mist generator for ejecting hot water in a mist form, a bathtub, and a high temperature in the hot water storage tank to the bathtub. It has a bathtub hot-water supply pipe for supplying water and a mist pipe for supplying high-temperature water in the hot water storage tank to the mist generating device, and the mist pipe is branched from the bathtub hot-water pipe. .

  Thereby, since hot water can be supplied to the mist generating device and the hot water supply terminal only by providing one hot water discharge pipe from one hot water storage tank, the piping can be simplified and not a hot water supply terminal such as a curan. Since it is branched from a pipe that supplies high-temperature water to the bathtub, there is little influence on the user on the hot water supply terminal side.

  The hot water storage type hot water heater of the present invention relates to a hot water storage type hot water heater that enables the use of a mist generating device and other hot water supply terminals without the need to provide a separate heat source at each terminal, and hot water supplied to the mist generating device. The flow rate and temperature can be stabilized.

  A hot water storage type water heater of the first invention includes a hot water storage tank for storing hot water, a mist generating device for ejecting hot water in a mist form, a bathtub, and a bathtub hot water supply pipe for supplying hot water in the hot water storage tank to the bathtub. A mist pipe for supplying high-temperature water in the hot water storage tank to the mist generating device, and the mist pipe branches from the bathtub hot water supply pipe so that only one hot water discharge pipe is provided from one hot water storage tank. Since hot water can be supplied to the mist generator and hot water supply terminal, the piping can be simplified and branched from the pipe supplying hot water to the bathtub instead of a hot water terminal such as a curan. There is little influence on the user at the hot water supply terminal side.

  In the hot water storage type hot water heater of the second invention, in particular, in the first invention, since the cross sectional area of the mist pipe is smaller than the cross sectional area of the terminal hot water pipe, a large amount of water does not flow into the mist generating device side. Therefore, it is possible to suppress fluctuations in the high-temperature flow rate supplied to the bathtub, and less water is collected in the mist piping after the mist generator is stopped, so that the amount of drainage when the mist generator is operated next time is reduced and water consumption is reduced. The amount can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a configuration diagram of a hot water storage type hot water supply apparatus according to Embodiment 1 of the present invention. In FIG. 1, a hot water storage type water heater of the present invention includes a hot water storage tank 1 for storing hot water, a water refrigerant heat exchanger 2 for boiling low temperature water stored in a lower part of the hot water storage tank 1 into high temperature water, and a hot water storage tank. 1 is provided with a water pump 3 for feeding low temperature water stored in a lower part of the water to the water refrigerant heat exchanger 2, and as shown in FIG. 1, a hot water storage tank 1, water pump 3, and water refrigerant heat exchanger 2 are provided. Are connected to each other in an annular manner by piping, and the low-temperature water stored in the lower part of the hot water storage tank 1 is supplied to the water refrigerant heat exchanger 2 by operating the water pump 3, and the water refrigerant heat exchanger 2 , Heat is radiated to the low temperature water to generate high temperature water, and the high temperature water generated by the water-refrigerant heat exchanger 2 is stored from above the hot water storage tank 1.

  Further, a three-way valve 61 is interposed between the flow path from the water refrigerant heat exchanger 2 to the hot water storage tank 1, and the temperature of hot water generated in the water refrigerant heat exchanger 2 when the compressor 6 starts up. The hot water discharged from the water-refrigerant heat exchanger 2 is returned to the lower part of the hot water storage tank 1 by switching the three-way valve 61 until high temperature water above a certain temperature is generated. When hot water of a certain temperature or higher is generated, the hot water discharged from the water-refrigerant heat exchanger 2 is returned to the upper side of the hot water storage tank 1 by switching the three-way valve 61. Note that a tank water supply pipe 4 is connected to the bottom of the hot water storage tank 1 from a water supply source so that a constant water supply pressure is applied. Supplied.

  Moreover, the hot water storage type water heater of the present invention uses a heat pump as a heat source. As shown in FIG. 1, the compressor 6 which compresses a refrigerant | coolant, the evaporator 7 which absorbs heat from air | atmosphere, and the decompression device 8 which decompresses a refrigerant | coolant, and the compressor 6, the water refrigerant | coolant heat exchanger 2, and The decompression device 8 and the evaporator 7 are sequentially connected in an annular shape by a refrigerant pipe, and carbon dioxide is used as the refrigerant flowing through the refrigerant pipe. That is, since it exceeds the critical pressure on the high pressure side, it does not condense even if heat is taken away by water, and hot water can be obtained.

  Further, a hot water supply pipe 10 for discharging hot water to a hot water supply terminal such as a faucet or a shower and a bathtub hot water supply pipe 11 for discharging hot water to the bathtub are connected to the top of the hot water storage tank 1. Hot water discharged from the hot water supply pipe 10 is mixed with water supplied from the water supply source through the water supply pipe 14 by the electric mixing valve 23 and supplied to the hot water supply terminal 31. The hot water discharged from the bathtub hot water supply pipe 11 is mixed with water supplied from the water supply source via the water supply pipe 14 by the electric mixing valve 22 and supplied to the bathtub 33. A pouring valve 52 composed of a two-way valve or the like is provided between the bathtub 33 and the electric mixing valve 22, and the hot water supply to the bathtub 33 is started by opening the pouring valve 52.

  The electric mixing valve 22 (electric mixing valve 23) is detected by a thermistor 42 (thermistor 43) which is a hot water temperature detecting means provided downstream of the electric mixing valve 22 (electric mixing valve 23). The drive is controlled so that the temperature becomes the set temperature set by the remote controller 13. Specifically, the set temperature set by the remote controller 13 is transmitted as data to the microcomputer 51 that is the control device, and the microcomputer 51 that has received the data is provided on the outlet side of each electric mixing valve. The drive is controlled so that the temperature detected by the thermistor is the set temperature set by the remote controller 13.

  The mist generating device 9 is a device that can enjoy a mist bath in a bathroom or the like, and the user operates the remote controller 13 provided in the bathroom to operate the temperature and operation of the mist generated from the mist generating device 9. You can set the time. In the first embodiment, hot water is supplied to the mist generating device 9 through the mist pipe 12 branched from the hot water supply pipe 11 for supplying the hot water in the hot water storage tank 1 to the bathtub 33.

  The temperature at which the thermistor 41 detects the high-temperature water in the hot water storage tank 1 supplied via the mist pipe 12 and the water supplied from the water supply source via the water supply pipe 14 is the mist temperature set by the remote controller 13. Thus, the electric mixing valve 21 is driven and controlled to supply hot water to the mist generating device 9. Hot water stop means (not shown) is provided in the mist generating device 9, and when hot water stop means (not shown) is opened, hot water is supplied from a mist nozzle (not shown) that ejects hot water. Is released inside. In addition, at the beginning of the mist, the cold water accumulated in the pipe between the hot water storage tank 1 and the mist generator 9 is drained to a washing place such as a bathroom, so that the cold water does not flow from the mist generator 9. It has become.

  About the hot water storage type water heater configured as described above, the configuration of the mist pipe 12 will be described in detail.

  The mist pipe 12 of the hot water storage type hot water heater in the present embodiment has a structure branched from the bathtub hot water pipe 11 as described above. The reason for this is that the branching from the hot water supply pipe 11 for supplying high-temperature water to the bathtub 33 has less influence on the user than the branching from the hot water supply pipe 10 supplied to the hot water supply terminal 31 such as currant. It is mentioned in.

  Usually, when the hot water is discharged from the hot water supply terminal 31 such as a currant, the user often wants to use the hot water immediately, and therefore, the hot water discharged from the hot water supply terminal 31 often directly touches the user. For example, it is assumed that the mist pipe 12 is branched from the hot water supply pipe 10. In such a case, if the operation of the mist generating device 9 is started while hot water is being discharged from the hot water supply terminal 31, high-temperature water flows into the mist pipe 12 from the hot water supply pipe 10, and the hot water supply terminal 31. The flow rate of the supplied high-temperature water is reduced (specifically, the flow rate of the high-temperature water supplied to the electric mixing valve 23 is changed). Therefore, although temporarily, the drive control of the electric mixing valve 23 must be performed so that the thermistor 43 has a set temperature set by the remote controller 13, the temperature of the hot water discharged from the electric mixing valve 23 varies. Resulting in. Therefore, since the hot water discharged from the hot water supply terminal 31 fluctuates temporarily, the hot water is supplied at a temperature other than the temperature required by the user, which may be uncomfortable.

  On the other hand, when it is set as the structure which branched the mist piping 12 from the bathtub hot water supply pipe | tube 11 which supplies high temperature water to the bathtub 33 like this invention, while discharging hot water from the hot water supply terminal 31, it is mist. Even if the operation of the generator 9 is started, the temperature of the hot water discharged from the hot water supply terminal 31 is not affected by the mist operation. Moreover, when it is set as the structure which branched the mist piping 12 from the bathtub hot-water supply pipe | tube 11 like this Embodiment, even if a mist driving | running is started to the bathtub 33 during hot water filling or heating up, a user's usage method Usually, a certain amount of hot water is stored in the bathtub 33 and then bathed or poured into the bathtub 33 in which a certain amount of hot water has already been stored. A large amount of hot water is mixed in the bathtub 33, and the user is less likely to feel the change in hot water temperature. That is, even if the mist pipe 12 is branched from the bathtub hot water supply pipe 11, the temperature change is less likely to be felt by the user, so that the user is not uncomfortable.

  For the above reasons, it is more effective to make the structure in which the mist pipe 12 is branched from the bathtub hot water supply pipe 11 that supplies high-temperature water to the bathtub 33 because the degree of influence on the user is small.

  Further, the diameter of the mist pipe 12 is smaller than the diameter of the bathtub hot water supply pipe 11. When the operation of the mist generator 9 is stopped, hot water remains in the pipe between the hot water storage tank 1 and the mist generator 9. Normally, when the next mist operation is started, the chilled hot water remaining in the pipe is drained to a washing place or the like to start the mist operation. By configuring the diameter of the mist pipe 12 to be small, Since the amount of drainage can be reduced as much as possible, consumption of hot water can be suppressed.

  The mist generator 9 usually requires about 1 L of water per minute, which is much smaller than the amount of hot water supplied to the bathtub 33. Therefore, by making the diameter of the mist pipe 12 smaller than the diameter of the bathtub hot water supply pipe 11, the degree of influence of hot water supply on the bathtub 33 can be further reduced, and further, the mist generating device 9. However, it is possible to reliably cover the amount of hot water required, so that the size of the hot water storage water heater can be reduced.

  As described above, the piping that supplies high-temperature water to the mist generator is configured to branch from the piping that supplies high-temperature water to the bathtub, thereby reducing the impact on the user and providing a simple configuration. It is possible to provide a hot water storage type water heater that can enjoy a mist bath.

  As described above, the hot water storage type water heater according to the present invention can realize a hot water storage type water heater that can be connected to the mist generating device with a simple configuration.

The block diagram of the hot water storage type hot water heater in Embodiment 1 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hot water storage tank 2 Water refrigerant heat exchanger 3 Water pump 4 Tank water supply pipe 6 Compressor 7 Evaporator 8 Depressurizer 9 Mist generator 10 Hot water pipe 11 Bath hot water pipe 12 Mist pipe 13 Remote control 21 Electric mixing valve 22 Electric mixing Valve 23 Electric mixing valve

Claims (2)

A hot water storage tank for storing hot water, a mist generating device for ejecting hot water in a mist shape, a bathtub, a hot water supply pipe for supplying hot water in the hot water storage tank to the bathtub, and a mist generating device in the hot water storage tank And a mist pipe for supplying high temperature water, wherein the mist pipe is branched from the bathtub hot water supply pipe. The hot water storage type hot water heater according to claim 1, wherein the cross-sectional area of the mist pipe is larger than the cross-sectional area of the terminal hot water supply pipe.

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