JPH1017366A - Ceramic plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the thermal conductivity of a medium to be heated such as water and to obtain a plate material capable of obtaining a heat exchanger or the like having good heat efficiency by coating a plate of metal or the like with a ceramic powder having a composition consisting of specified ratios of silicon oxide or silicon carbide, aluminum oxide and titanium oxide. SOLUTION: In the production of this plate, a composition consisting of 45 to 65wt.% silicon oxide, 20 to 30wt.% aluminum oxide and 15 to 25wt.% titanium oxide is sintered to obtain a sintered body and the sintered body is pulverized into a grainy ceramic powder. Then, one surface of a plate such as metal plate or the like is coated with this ceramic powder to obtain the objective ceramic plate. For example, at the time of using this ceramic plate as a heat exchanger plate 2 of a bathtub heat exchanger shown in the figure, near- and far-infrared rays are radiated from the ceramic powder 20 to continuously cause resonance and excitation of water molecules. As a result, the number of cluster constituent units in a water molecule (i.e., (n) in (H2 O)n ) is reduced to 5 to 6 and therefore, the size of the resulting water molecule 1 becomes smaller and a heat conduction point 10 is formed at the contact point of each of the water molecules 1 in contact with the ceramic plate 2 and the total number of the contact points 10 is twice as large as that of the contact points generated at the time of using an iron plate as the heat exchanger plate 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic plate which emits near infrared rays and far infrared rays.

[0002]

2. Description of the Related Art Taking a heat exchanger used for a bath layer or the like as an example, a structure capable of efficiently boiling hot water is naturally required. Conventionally, as a method of increasing the thermal efficiency of such a heat exchanger, a method of selecting a material having a high thermal conductivity as a material (generally, a metal) of a plate that separates a heat source from water constituting the heat exchanger is used. There is. However, in a heat exchanger used for a bath layer or the like, expensive materials cannot be selected in view of cost. Materials that are difficult to process cannot be selected. An iron plate is usually used because a material having poor durability cannot be selected.

[0003]

As described above, the heat exchange plate of a heat exchanger conventionally used for a bath layer or the like is usually made by rust-proofing an iron plate from the viewpoint of cost, workability, durability and the like. However, there is a problem that the thermal efficiency cannot be improved.

The present invention has been made to solve such a problem, and when used as a plate for separating a liquid, a cluster of the liquid molecules is naturally formed.
It is an object to provide a ceramic plate with a reduced number, ie a smaller size of the liquid molecules.

[0005]

SUMMARY OF THE INVENTION A ceramic plate according to the present invention has a weight ratio of silicon oxide (or silicon carbide).
A ceramic powder obtained by sintering a composition of 45 to 65%, 20 to 30% of alumina oxide, and 15 to 25% of titanium oxide to form a granule is applied to one surface of a plate such as a metal plate. It is characterized by the following. Therefore, from the surface coated with the ceramic powder, electromagnetic waves in the far infrared region of approximately 3 μm to 20 μm by silicon oxide (or silicon carbide) and approximately (0.8) 0.
Electromagnetic waves in the near infrared region of 9 μm to 2.5 μm are emitted.

[0006] The heat exchange plate of the heat exchanger is characterized in that the object to be heated (or the medium to be heated) is separated on one surface coated with the ceramic powder. Therefore, the number of clusters of water molecules [(H ₂ O) n] is reduced by the emitted far-infrared rays and near-infrared rays, that is, the size of the water molecules is reduced to double the heat conduction point, and the thermal conductivity of water itself is reduced. Can be improved.

Further, the present invention is characterized in that a liquid fuel tank is provided in which the liquid fuel is contained on one side coated with the ceramic powder. Therefore, the emitted far-infrared rays and near-infrared rays can reduce the number of clusters of liquid fuel molecules, improve the thermal conductivity of the liquid fuel itself, and promote vaporization during combustion.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below. First, one of the plates such as a metal plate is provided with silicon oxide (or silicon carbide) 45 to 65%, alumina oxide 20 to 30%, and titanium oxide 15 to The method is characterized in that a ceramic powder obtained by sintering 25% of the composition is granulated, and the ceramic powder to be coated will be described first.

This ceramic powder is disclosed in a patent application (Japanese Patent Application No. 8-125202:
This is referred to as a prior application), but from this ceramic powder, the silicon oxide contained therein emits electromagnetic waves in the far-infrared region ranging from approximately 3 μm to 20 μm, and further contains alumina oxide and A metal oxide is composed of titanium oxide, and the composition has a characteristic of emitting a shorter wavelength electromagnetic wave in the near infrared region of approximately 0.9 μm to 2.5 μm. When silicon carbide is used in place of silicon oxide, a shorter wavelength of about 0.8
It has the characteristic of emitting electromagnetic waves in the near infrared region of μm to 2.5 μm. FIG. 1 is a diagram showing the electromagnetic wave radiation characteristics of this ceramic powder.

It is known from many literatures that the resonance wavelength region of water or liquid molecules similar thereto is a wavelength region of near-infrared electromagnetic waves of 1 μm to 3 μm and far-infrared electromagnetic waves of 6 μm to 11 μm. In the above-mentioned prior application, the near-infrared ray and the far-infrared ray emitted from the ceramic powder are used to resonantly excite the moisture and environmental moisture of bacteria attached to foods and the like to generate active oxygen, thereby producing antibacterial activity. Disclosure of technology to do. According to the present invention, water and liquid molecules similar to water are resonantly excited by near-infrared rays and far-infrared rays emitted from the ceramic powder, whereby clusters of the liquid molecules are formed.
er) Focuses on the effect of reducing the number and the size of the liquid molecules. That is, if this ceramic powder is used for a heat exchange plate of a heat exchanger such as a bath tub, the thermal conductivity of water itself can be doubled by the effect of reducing the number of clusters of water, and the water can be efficiently boiled. As a result, a heat exchanger having high heat efficiency can be obtained. Hereinafter, this will be described.

FIG. 2 shows a case where a conventional heat exchange plate is used for a heat exchanger of a bathtub (FIG. 2A) and a case where a ceramic plate of the present invention is used (FIG. 2A). It is a figure which shows comparison with (B)) typically.
In the drawing, reference numerals 1 and 1a denote the size of water molecules, 2 denotes a ceramic plate of the present invention, 2a denotes a plate using conventional iron or the like, 3 denotes a heat source, and 10 denotes a heat conduction point. As shown in FIG. 2 (A), water molecules are usually composed of 13 to 15 clusters, and a heat conduction point 10 is formed at each contact point of each water molecule 1a.

In the ceramic plate 2 of the present invention, the above-mentioned ceramic powder 20 is applied on the plate, and near-infrared rays and far-infrared rays are radiated from the ceramic powder 20 as described above, so that water molecules are constantly emitted. Excite resonance. As a result, as shown in FIG. 2B, the number of clusters of water molecules is reduced to 5 to 6, the size of the water molecules is reduced, and heat conduction points 10 are formed at the contact points of the water molecules 1 respectively. 2A and FIG. 2B, the number of heat conduction points is doubled even with water in the same volume, as is clear from the comparison between FIG. Therefore, the thermal conductivity of water itself can be increased,
As a result, an efficient heat exchanger can be obtained.

[0013] The water of water molecules having a number of clusters of 5 to 6 is almost the same as the water molecules of the hot spring water. You can boil water that gives you a natural feeling. Furthermore, it has been confirmed by the applicants that this hot water has higher animal finger resolution than tap water or the like. Therefore, by inputting this hot water, wasteful fat is removed from the body (so-called diet). The effect can be expected.

Further, if the ceramic plate is used as a fuel tank for an oil stove or the like, the number of clusters of liquid fuel molecules is reduced by far infrared rays and near infrared rays emitted while the fuel is being put into this tank. In addition, the thermal conductivity of the liquid fuel itself is improved. Therefore, the burning speed at the time of burning can be increased, and for example, generation of an unpleasant odor due to incomplete burning at the start of burning of an oil stove or the like can be suppressed.

[0015]

As described above, the ceramic plate of the present invention causes the liquid molecules to be resonantly excited by near-infrared rays and far-infrared rays radiated from the plate only by being brought into contact with water or a similar liquid. Decrease the number of clusters to reduce the size of the molecule. Therefore, when used for a heat exchanger or the like, a heat exchanger having good heat efficiency can be obtained. Further, when used for a heat exchanger in a bathtub, a bodily sensation and a diet effect similar to hot spring water can be expected. Also, when used in a fuel tank of a liquid fuel combustion device such as an oil stove,
This has the effect of improving the combustion efficiency of liquid fuel and suppressing the generation of unpleasant odors at the start of combustion.

[Brief description of the drawings]

FIG. 1 is a diagram showing electromagnetic wave radiation characteristics of a ceramic powder used in the present embodiment.

FIG. 2 is a diagram for explaining a heat efficiency improving action of the heat exchanger according to the embodiment.

[Explanation of symbols]

 1, 1a Size of water molecule 2 Ceramic plate of the present invention 2a Conventional plate 3 Heat source 10 Conduction point of heat

Claims (3)

[Claims] 1. Silicon oxide (or silicon carbide) in a weight ratio
A ceramic powder obtained by sintering a composition of 45 to 65%, 20 to 30% of alumina oxide, and 15 to 25% of titanium oxide to form a granule is applied to one surface of a plate such as a metal plate. Ceramic plate. 2. The ceramic according to claim 1, wherein a heat-exchange plate of a heat exchanger separates an object to be heated (or a medium to be heated) on one surface coated with the ceramic powder. plate. 3. The ceramic plate according to claim 1, wherein said one surface coated with said ceramic powder is a liquid fuel tank for containing a liquid fuel.