JP2012097907A - Water heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water heater with a dissolution device for easily increasing the component concentration of an inorganic compound, etc., in a bathtub.SOLUTION: The water heater includes: a bathtub water supply circuit 39 for supplying hot water to a bathtub; a bathtub water circulation circuit 41 for circulating the hot water of the bathtub; a dissolution device 16 for dissolution of the inorganic compound; and a bathtub water pump 40. The water heater is characterized in that: the bathtub water supply circuit 39 communicates with the bathtub through the bathtub water circulation circuit 41; and the dissolution device 16 and the bathtub water pump 40 are arranged in the bathtub water circulation circuit 41. The circulation of water or hot water containing the inorganic compound through the bathtub water circulation circuit 41 accordingly increases the component concentration of the inorganic compound in the bathtub.

Description

  The present invention relates to a hot water supply apparatus having a function of supplying an inorganic compound or the like to a bathtub.

  Conventionally, this type of apparatus dissolves a material containing a target component in water by electrolysis, and supplies the dissolved water to a target circuit (for example, see Patent Document 1).

  FIG. 5 shows a conventional hot water supply apparatus described in Patent Document 1. As shown in FIG. As shown in FIG. 5, it is composed of a zinc anode 1, a cathode 2, a casing 5, and a DC power source 9, and is provided in a water supply path or a hot water supply path of a hot water supply device.

JP 2004-190882 A

  However, in the conventional configuration, the target component (zinc anode 1) is dissolved in water only when the bath is filled with water, and the target component concentration cannot be increased due to user preference.

  This invention solves the said conventional subject, and it aims at providing the hot-water supply apparatus provided with the melt | dissolution apparatus which can raise the component density | concentration in a bathtub easily.

  In order to solve the conventional problems, a hot water supply apparatus of the present invention circulates hot water in a bathtub water pouring circuit for supplying hot water to a bathtub, a bath water circulation circuit in which hot water in the bathtub circulates, and the bathtub water circulation circuit. A bathtub water pump that dissolves the inorganic compound, and the bathtub water pouring circuit communicates with the bathtub through the bathtub water circulation circuit, and the bathtub water circulation circuit includes the dissolution apparatus and the A bathtub water pump is provided.

  This makes it possible to dissolve inorganic compounds and the like when hot water is filled in the bathtub, and increases the concentration of components such as inorganic compounds in the bathtub by circulating water or hot water containing inorganic compounds in the bathtub water circulation circuit. It becomes possible.

  ADVANTAGE OF THE INVENTION According to this invention, the hot water supply apparatus provided with the melt | dissolution apparatus which can raise the component density | concentration of the inorganic compound in a bathtub can be provided.

Configuration diagram of dissolution apparatus in Embodiment 1 of the present invention Detailed view of the dissolution apparatus Configuration of the water heater Detailed view of the vicinity of the dissolution apparatus Configuration diagram of conventional hot water supply equipment

  1st invention dissolves an inorganic compound, the bathtub water pouring circuit which supplies hot water to a bathtub, the bathtub water circulation circuit which the hot water of a bathtub circulates, the bathtub water pump which circulates hot water in the said bathtub water circulation circuit, and The bathtub water pouring circuit communicates with the bathtub via the bathtub water circulation circuit, and the melting apparatus and the bathtub water pump are disposed in the bathtub water circulation circuit. It is a hot water supply device.

  As a result, it is possible to dissolve inorganic compounds and the like when hot water is filled in the bathtub, and by circulating water or hot water containing inorganic compounds in the bathtub water circulation circuit, the water or hot water passes through the dissolving device. It is possible to increase the component concentration of the inorganic compound at the outlet of the dissolution apparatus. Therefore, it becomes possible to raise the component density | concentration of the inorganic compound in a bathtub.

  2nd invention is the hot water supply apparatus characterized by having arrange | positioned the said bathtub water pump to the lower side of the melting | dissolving apparatus of 1st invention.

  Accordingly, when performing maintenance such as replacement of the melting apparatus, it is necessary to remove hot water from the bathtub water circulation circuit, and it is possible to remove hot water from the drain plug attached to the bathtub water pump. Accordingly, it is not necessary to newly install a drain plug in the dissolving apparatus, so that the cost can be reduced.

  A third aspect of the invention is a hot water supply apparatus in which the melting device of the first or second aspect of the invention is arranged in a main body housing, and from a hot water storage tank, a power supply circuit, etc. even at a low outside temperature. Since the atmosphere in the housing is always heated by the slight heat dissipation, heat insulation such as prevention of freezing of the melting apparatus is simplified or unnecessary.

  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 structural diagram of a melting apparatus according to the first embodiment of the present invention.

  In FIG. 1, the inorganic compound 11 has a substantially cylindrical shape and is stored in the inorganic compound storage container 12. The inorganic compound 11 is soluble in water. The inorganic compound storage container 12 communicates with the water circuit 15 and constitutes a dissolution apparatus 16.

  About the hot water supply apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. The water flowing from the water circuit 15 into the dissolving device 16 passes between the inorganic compound storage container 12 and the inorganic compound 11. Since water has viscosity, when passing between the inorganic compound storage container 12 and the inorganic compound 11, a velocity boundary layer is generated from the surface of the inorganic compound 11 to a region near the surface. FIG. 2 is a diagram showing the state of the velocity boundary layer.

  The flow velocity of the velocity boundary layer in the vicinity of the surface of the inorganic compound 11 is small, and the flow velocity becomes a large distribution away from the surface of the inorganic compound 11. Since the inorganic compound 11 is soluble in water, 11 surface molecules near the surface of the inorganic compound 11 are dissolved in water near the surface, and the dissolution concentration of water increases. Since the water near the surface has a low flow rate, the dissolved concentration has a high value.

  On the other hand, the dissolved concentration of water flowing in a portion away from the surface of the inorganic compound 11 having a high flow rate is low. At this time, if there is a difference in the concentration of the inorganic compound dissolved in water, the lower substance moves from the higher one according to the concentration difference (Fick's law), so the inorganic compound dissolved in the water near the surface Move to low center water. By utilizing this principle of substance diffusion, the inorganic compound 11 can be dissolved in water in a portion away from the surface of the inorganic compound 11.

  As mentioned above, in this Embodiment, it was set as the hot-water supply apparatus provided with the melt | dissolution apparatus which had the inorganic compound and the inorganic compound storage container, and was connected with the inorganic compound storage container with the water circuit.

  This makes it possible to dissolve the inorganic compound in water based on the principle of substance diffusion (Fick's law) in which the substance moves due to the difference in the dissolved concentration between water and the inorganic compound. Therefore, since the power supply circuit and the insulation circuit which have been required so far can be reduced, it is possible to provide a hot water supply apparatus that is compact and low in cost, and further reduces power consumption.

In addition to zinc oxide, materials that can be used as inorganic compounds include zinc oxide (ZnO), basic zinc carbonate (mZnCO ₃ .nZn (OH) ₂ ), and zinc hydroxide (Zn (OH) ₂ ). ), Zinc-substituted zeolite, zinc-substituted chelate, and zinc silica gel support, which can be used alone or in combination.

  Further, calcium sulfate, magnesium hydroxide, iron compound (iron oxide, iron hydroxide), copper oxide, silicon oxide, manganese dioxide, cobalt hydroxide, titanium oxide, silver chloride, and barium sulfate can be used.

  In addition, when the inorganic compound is a zinc compound containing zinc (such as zinc oxide or zinc carbonate), the following effects can be obtained. Zinc is one of the essential elements of humans with relatively large demands, and is easily deficient when supplied from a normal diet. It is an element added to foods for the purpose of enhancing nutrition.

  On the other hand, the nutrition enhancement by percutaneous absorption can be performed during bathing by supplying water in which zinc is dissolved in the bathtub.

  In addition, although the shape of the inorganic compound is described as a substantially flat plate shape, the same effect can be obtained even in a substantially cylindrical shape, a shape having a plurality of irregularities on the surface, a powder shape, a granular shape, or a mixture of a powder shape and a granular shape. can get.

  FIG. 3 shows a block diagram of the hot water supply apparatus in the first embodiment of the present invention.

  In FIG. 3, a heat pump unit 21 is configured by connecting a compressor 22, a hot water supply heat exchanger 23, a decompression unit 24, and an evaporator 25 in an annular manner in order by a refrigerant circuit 26. Water is stored in a hot water storage tank 28 of the hot water storage unit 27, and a hot water discharge circuit 30 is a circuit that connects the hot water storage tank 28, a hot water supply pump 29, a hot water supply heat exchanger 23, and a hot water storage tank 28 in this order.

  The bathtub water heating circuit 35 is a circuit that connects the hot water storage tank 28, the bath heat exchanger 33, the bathtub water heating pump 34, and the hot water storage tank 28 in order, and the bathtub 42 is connected to the other circuit of the bath heat exchanger 33. ing.

  The bathtub water circulation circuit 41 is a circuit that sequentially connects the bathtub 42, the bathtub water pump 40 that conveys bathtub water, the melting device 16, and the bath heat exchanger 33. The bathtub water pouring circuit 39 is a circuit for pouring the water in the hot water storage tank 28 to the bathtub 42 via the bathtub water circulation circuit 41. In this circuit, a bath water mixing valve 36 for mixing hot water in the hot water storage tank 28 and tap water, temperature detecting means 37 for detecting the temperature of the pouring water, and bath water pouring for opening and closing the bath water pouring circuit 39. The hot water valve 38 is provided in order. The melting device 16 was provided in the bathtub water circulation circuit 41 on the downstream side of the bathtub water pouring valve 38 so as to be housed in the housing of the main body.

The operation of heating the water stored in the hot water storage tank 28 by the heat pump unit 21 is as follows. The water in the hot water storage tank 28 is conveyed to the hot water supply heat exchanger 23 by the hot water supply water pump 29 and heated by the heat pump cycle operation. The hot water supply pump 29 controls the flow rate of the hot water supply circuit 30 so that the temperature of the hot water heated by the hot water supply heat exchanger 23 becomes a predetermined temperature.

  The filling of the bathtub 42 and the heating of the bathtub water are as follows. The bath water mixing valve 36 of the bath water pouring circuit 39 has a hot water and tap water so that the pouring temperature detected by the temperature detecting means 37 becomes a temperature preset by a remote controller or the like (not shown). Adjust the mixing ratio. The bathtub water having a predetermined temperature flows out into the bathtub 42 through the bathtub water pouring circuit 39 and the bathtub water circulation circuit 41 in this order.

  On the other hand, when the bathtub water in the bathtub 42 is heated, the hot water stored in the hot water storage tank 28 is conveyed to the bath heat exchanger 33 by the bathtub water heating pump 34, and the bathtub water conveyed from the bathtub water pump 40. Heat. Hot-water supply water whose temperature has been lowered by heating the bath water in the bath heat exchanger 33 flows into the interior from the lower part of the hot water storage tank 28.

  About the hot water supply apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. When the user hot waters the bathtub 42, the remote controller or the like performs a hot water operation instruction operation. After the remote control operation, the water adjusted by the bathtub water mixing valve 36 to a preset temperature flows out to the bathtub 42 via the bathtub water circulation circuit 41 when the bathtub water pouring valve 38 is controlled from closed to open. To do. When the water passes through the dissolving device 16 in the bathtub water circulation circuit 41, the inorganic compound dissolves in the water, so that the water in which the inorganic compound 11 is dissolved flows into the bathtub 42 simultaneously with the hot water operation in the bathtub 42.

  On the other hand, when the user heats the bathtub water, the user performs a chasing operation instruction operation using a remote controller or the like.

  After the remote control operation, the hot water stored in the hot water storage tank 28 is conveyed to the bath heat exchanger 33 by the bathtub water heating pump 34, and the bathtub water conveyed from the bathtub water pump 40 is heated. Hot-water supply water whose temperature has been lowered by heating the bath water in the bath heat exchanger 33 flows into the interior from the lower part of the hot water storage tank 28.

  The bathtub water heated by the bath heat exchanger 33 flows into the bathtub 42. When the water or hot water containing the inorganic compound passes through the dissolving device 16 in the bathtub water circulation circuit 41, the inorganic compound is further dissolved, and the component concentration of the inorganic compound can be increased.

  Although the melting device 16 is on the downstream side of the bathtub water pouring valve 38, when the bathtub water pouring valve 38 is controlled from opening to closing, a water hammer phenomenon occurs and is provided in the upstream circuit. The bathtub water mixing valve 36, the hot water storage tank 28, etc. give a water pressure load higher than the water pressure. By providing on the downstream side, the hydraulic load on the melting device 16 is not applied.

  As mentioned above, in this Embodiment, it was set as the hot-water supply apparatus provided with the bathtub water-pouring circuit and the bathtub water-pouring valve, and equipped with the bathtub water-pouring circuit in order of the bathtub water-pouring valve and the melting apparatus. Thereby, since the melting device is not affected by the water hammer phenomenon (water pressure increase in the bathtub water pouring circuit or the like) that occurs when hot water to the bathtub is stopped, the pressure resistance structure of the melting device can be simplified. Furthermore, since the water flow of the hot water to the bathtub is used, the water in which the inorganic compound is dissolved can be supplied to the bathtub at the same time as the hot water, thereby improving convenience.

In the present invention, the melting device 16 is housed in the main body housing of the water heater. Although it is possible to provide in the bathtub water circulation circuit 41 outside the main body casing, the atmospheric temperature inside the main body casing is reduced by heat radiation from the hot water storage tank 28 even at a low outside temperature. Is always heated, so that heat insulation such as prevention of freezing of the melting device 16 is unnecessary or simplified.

  FIG. 4 shows a detailed view of the periphery of the melting apparatus in the first embodiment of the present invention. In FIG. 4, 43 is a drain plug, which is attached to the lower part of the bathtub water pump 40, and the dissolving device 16 is installed above the bathtub water pump 40. When performing maintenance such as replacement of the melting device 16, it is necessary to remove hot water from the melting device 16, and a drain plug is required below the melting device 16. However, since the bathtub water pump 40 is installed below the melting device 16, the hot water in the melting device 16 can be drained by removing hot water from the drain plug of the bathtub water pump 40, and newly dissolved. Since it is not necessary to install a drain plug in the device 16, the cost can be reduced.

  Further, when the hot water heater is a hot water storage type hot water heater, high temperature hot water is stored in the hot water storage tank, so that the equipment can be sterilized and sterilized by supplying the hot water to the compound dissolving apparatus. Further, since the residual chlorine dissolved in the water is reduced during storage, the main body is not a corrosion-resistant material, and inexpensive general-purpose parts can be used.

  As described above, the hot water supply apparatus according to the present invention leads to downsizing and cost reduction, and can be used for a hot water storage hot water heater and a gas heat source hot water heater.

DESCRIPTION OF SYMBOLS 11 Inorganic compound 12 Inorganic compound storage container 15 Water circuit 16 Dissolution apparatus 21 Heat pump unit 27 Hot water storage unit 28 Hot water storage tank 38 Bathtub water pouring valve 39 Bathtub water pouring circuit 40 Bathtub water pump 41 Bathtub water circulation circuit 42 Bathtub

Claims (3)

A bathtub water pouring circuit for supplying hot water to the bathtub, a bathtub water circulation circuit for circulating hot water in the bathtub, a bathtub water pump for circulating hot water in the bathtub water circulation circuit, and a dissolving device for dissolving inorganic compounds, The bathtub water pouring circuit communicates with the bathtub through the bathtub water circulation circuit, and the melting device and the bathtub water pump are disposed in the bathtub water circulation circuit. The hot water supply apparatus according to claim 1, wherein the bathtub water pump is disposed below the melting apparatus. The hot water supply apparatus according to claim 1 or 2, wherein the melting apparatus is disposed in a main body casing.