JPH09310921A - Heat storage type hot-water device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat storage type hot-water device with excellent performances such as efficient heating, heat dissipation for a long period of time, emission of infrared rays for a long period of time and the like. SOLUTION: Water is heated by effecting heat exchange through a heat generating body 2, arranged in the affecting area of a heat source for heating and provided with heat storage property. Graphite ceramics, emitting infrared rays, is used as the heat generating body 2. When a well-known electromagnetic heater 1 is employed to generate heat from the heat generating body 2, the body 2 generates heat immediately (within a short period of time) and safely while heat is dissipated gradually for a long period of time by the heat storage performance of the heat generating body proper and, simultaneously, far infrared rays are emitted for a long period of time whereby the water is heated efficiently and the temperature is kept for a long period of time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath, a water heater, and other hot water devices (for example, a reheating type bath, a hot water type bath,
Heat exchanger type water heater, etc.)

[0002]

2. Description of the Related Art A bath is known to be a reheating type or a hot water supplying type, but the former requires a bath kettle, a kerosene boiler or a gas boiler. For those requiring a bathtub, the volume of the bathtub is small, so a large bathtub must be installed to avoid this, which requires the construction of a bathroom with a large floor area. At the same time, a chimney must be erected on the bath kettle. For those requiring a kerosene boiler or a gas boiler, it is necessary to install an oil pipe from the boiler to the bath kettle, and maintenance of the boiler and oil pipe is difficult. The latter requires a heat exchange water heater (eg, a gas water heater or an electric water heater). Therefore, the heat energy used to supply hot water in the water heater is wastefully discharged as it is, and since the water heater is not a heat storage type, if the heat energy supply is cut off, it immediately becomes water. . In addition to this, a 24-hour bath is known, but this bath uses cartridge heaters and ceramic heaters to keep warm, and it is necessary to wire these heaters in the bathroom. There is a concern that moisture may cause a short circuit. Moreover, since this 24-hour bath is not a heat storage type, there is a risk of wasting electric energy.

Known heat exchange type water heaters include gas water heaters and electric water heaters that use late-night electric power. The former gas water heater can use hot water immediately, but it is not a heat storage type, so when the fire is stopped, it turns into water immediately, and there is a risk of gas leakage, incomplete combustion of gas, and the like. And when it is desired to use the hot water immediately, it is necessary to constantly ignite the spark, which easily causes waste of gas. The latter electric water heater is a heat storage type, a late-night power use method,
It is superior to the gas water heater in that it does not have to worry about gas leaks or incomplete combustion of gas, but if you accidentally forget to use late-night power, you will have to pay a high electricity rate. In addition to these problems, both require a hot water supply pipe from the water heater to the kitchen, bathroom, restroom, and other places where hot water is used, so there is no energy loss escaping from the hot water supply pipe during hot water supply. Remarkably wasteful.

The present invention is intended to solve the above-mentioned problems of the prior art, and does not require large facilities such as a large bathtub, a large bathroom, and a chimney or large-scale facilities, and heat energy or electric energy. We propose a heat storage type hot water system that does not cause any loss, and that there is no fear that the room will be polluted by soot and smoke leaking from the bath and exhaust gas leaking from the gas water heater. The present invention discloses that an electromagnetic heater that uses electric energy to heat an iron product (for example, a cooking appliance that uses electromagnetic waves) is known, and the electromagnetic heater can immediately and immediately dissipate heat without radiating heat. Graphite ceramics (plates with a carbon content of 99% or more) that safely generate heat in a graphite molded product and have excellent heat storage properties as such a graphite molded product
With the fact that it is widely known that the existence of such is present, the above-mentioned object is raised and the above-mentioned proposal is made.

[0005]

[Means for Solving the Problems] Means to be taken by the present invention to achieve the above-mentioned object are as follows: Heat is exchanged by a heat-generating heating element arranged in the working region of a heating source for heating water. It means to warm up. The heating element in such hot water means can be arranged so as to be in direct contact with water, or so as not to be in direct contact with water. Further, the heating element uses graphite ceramics that emits far infrared rays. When a well-known electromagnetic heater is used to generate heat in a heat storage element, it is possible to generate heat immediately (for a short time) and safely.
Due to the heat storage performance of the heating element, heat is gradually released for a long time, and at the same time, far infrared rays are emitted for a long time.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Several heat storage type hot water devices will be described with reference to FIGS. 1 to 5. As a result of an experiment, the present inventor has paid attention to the fact that the heating element 2 made of graphite ceramics has excellent thermal conductivity and heat storage property, and has a characteristic of emitting far infrared rays when heat is generated.
Succeeded in developing hot and cold water means for bath and water heater. FIG. 1 shows an example in which a bath is constructed by applying the configurations of claims 1 and 2 to a bathtub, and examples of constructing a heat exchange type water heater with the same configuration are shown in FIGS. 3 and 4. FIG. 2 shows an example in which a bath is configured by applying the configuration of item 3 to a bathtub.

Referring to FIG. 1, a well-known electromagnetic heater 1 that heats a heating element 2 made of graphite ceramics by using electric energy as a heat source for heating is fixed to the outer surface of the bathtub 3, and A plate body of the heating element 2 is fixed to a portion of the inner surface facing the electromagnetic heater, the plate element is covered with a casing 4 made of metal, synthetic resin or the like, and the heating element 2 is arranged in the bath 3 so as not to come into direct contact with water. . When the electromagnetic heater 1 is electrically connected to a power source (for example, a household 100V power source) in this configuration, the electromagnetic heater 1 generates electromagnetic waves toward the heating element 2 due to electric energy, and the electromagnetic waves cause the bathtub 3 to flow. When passing through, the heating element 2 is caused to generate heat, and at the same time, the heating element is caused to emit far infrared rays.

The heating element 2 made of graphite ceramics is shown in FIGS. 1, 3 and 4 as an example processed into a plate body and in FIG. 2 as an example processed into a sphere. It has various properties. Composition Carbon 99% or more Thermal conductivity 150 (Kcal / mH ° C.) Bending strength 300 (Kg / cm ² ) Specific heat 0.2 to 0.38 (normal temperature to 500 ° C.) The heating element 2 is as shown in FIG. It exhibits an emissivity of 78% or more over the far infrared region. The heating element 2 can be processed into a plate or a sphere, and can be formed and configured into various shapes and structures such as particles, powder, a tube and a rod.

The heating element 2 made of graphite ceramics is used in the case of particles, powder, etc. by mixing it with cement, sand, etc. at a constant mixing ratio, kneading it, and then molding it. Although not shown, if a proper number of openings, which are through holes, are opened on the front side of the casing 4 shown in FIG. 1, the heating element 2 can be configured to be in direct contact with water. The structure can be described.

FIG. 2 shows an example of a structure in which the heat-generating body 2 having heat storage properties is brought into direct contact with water. The heat-generating body is formed as a sphere, and openings 5 consisting of through holes are formed on both upper and lower sides. An appropriate number of heating elements 2 are housed in the box-shaped casing 4 thus formed. On the other hand, a metal heating plate 6 made of a stainless steel plate that is resistant to rust is fixed to a portion of the inner surface of the bathtub 3 facing the electromagnetic heater, and the casing 4 is attached to the inner surface of the bathtub 3 so that the heating element 2 abuts on this heating plate. Install on. If the electromagnetic heater 1 is electrically connected to the power source by configuring as in this example,
The heater generates an electromagnetic wave toward the metal heating plate 6, the electromagnetic wave passes through the bath 3 to heat the metal heating plate 6, and the heating plate instantly (short time) heats the spherical heating element 2. And it heats safely and by this, the water in a tank is warmed, a convection occurs in water, and after that, it heats efficiently. Even if the electromagnetic heater 1 stops the generation of electromagnetic waves, the heated water radiates far infrared rays while gradually radiating heat to make it difficult for the warmed water to cool, and maintains the warmth for a long time.

FIGS. 3 and 4 show an example of a heat exchange type water heater having a structure in which the heating element 2 having a heat storage property does not come into direct contact with water, and corresponds to the bathtub 3 shown in FIGS. 1 and 2. The electromagnetic heater 1 is attached to the outer surface of one side wall of the adiabatic heat exchange chamber 3, and the heat-generating body 2 having heat storage property is disposed in the inner surface of the exchange chamber 3 facing the electromagnetic heater. The water supply pipe 7 is arranged in a meandering manner on the side of the electromagnetic heater, and the inflow side end of the water supply pipe is connected to a water source (not shown) (for example, a tap for water supply).
Of the hot water H by supplying the hot water H by connecting the end portion on the outflow side to a hot water supply pipe (not shown) (for example, a hot water supply pipe to a kitchen, a restroom, a bathroom, or any other place requiring hot water). To be configured. When the electromagnetic heater 1 is electrically connected to a power source (the home power source) configured as above, the electromagnetic waves generated by the heater toward the heating element 2 pass through the wall of the heat exchange chamber 3 to generate heat. At the same time that the body 2 is made to generate heat, far-infrared rays are emitted to the heat-generating body, and the water supply pipe 7 is heated by the radiant heat of the heat-generating body 2 and the far-infrared light, and the running water W in the water supply pipe is warmed and supplied as hot water H. . The heating of the water supply pipe 7 by the heating element 2 is performed immediately (for a short time) and safely. Then, the running water in the water supply pipe 7 becomes hot water H by radiating far infrared rays while the heating element 2 gradually radiates heat and radiating far infrared rays even if the electromagnetic heater 1 stops the generation of electromagnetic waves. Can be supplied.

According to the present invention, as described above, the heating element arranged in the working area of the heating source for heat storage is configured to perform heat exchange to heat the water. If electromagnetic waves are generated in a known electromagnetic heater by the action of, the heating element immediately and safely generates heat (for a short time) and efficiently heats water. And even if the electromagnetic heater stops the generation of electromagnetic waves, heat is gradually dissipated for a long time due to the heat storage performance of the heating element, and at the same time, far infrared rays are radiated for a long time to keep the water warm for a long time.
No loss of heat energy or electrical energy.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a case where the configurations of claims 1 and 2 of the present invention are baths.

FIG. 2 is an explanatory diagram showing a case where the configurations of 1 and 3 are baths.

FIG. 3 is an explanatory diagram showing a case where the configurations of 1 and 2 are heat exchange type water heaters.

FIG. 4 is a sectional view taken along line (4)-(4) of FIG.

FIG. 5 is a far infrared radiation graph of a heating element (graphite ceramics).

[Explanation of symbols]

 1 ... Electromagnetic heater 2 ... Heating element

Claims (4)

[Claims] 1. A heat storage type hot water device that heats water by exchanging heat with a heating element having a heat storage property arranged in an operation region of a heat source for heating. 2. The heat storage type hot water apparatus according to claim 1, wherein the heating element having a heat storage property is arranged so as not to come into direct contact with water. 3. The heat storage type hot water apparatus according to claim 1, wherein the heat generating element having a heat storage property is arranged so as to be in direct contact with water. 4. The heat storage type hot water apparatus according to claim 1, wherein the heat-generating heating element is graphite ceramics that emits far infrared rays.