JP2001263823A - Hot air type heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly efficient hot air type heater for radiating heat using a heat transfer medium with efficient heat transfer effect with electric heat as a heat source. SOLUTION: The hot air type heater is composed of a hot air discharge port 10 at the upper side of a front, a case 14 with a suction fan 12 at the lower side of a rear side, a number of heat transfer medium pipes 18A and 1 8B that are arranged in the case 14 while a number of radial heat radiation fins 32 are arranged on an outer surface, and heat storage blocks 16 and 16A where the lower end part of the heat transfer medium pipes 18 and 18A is connected and an electric heat heater 20 is arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air heater, and more particularly to an electric heater, in which heat generated by the electric heater is radiated through a number of radiating pipes containing a heat conducting medium. The present invention relates to a hot air heater in which hot air heating is performed.

[0002]

2. Description of the Related Art As is well known, electric energy is clean energy that does not leave pollutants, and when it is used for heating, the installation cost can be minimized, and explosion occurs when oil or gas is used. It is a high-grade energy that can be used relatively safely without fear.

[0003] However, since such electric energy is extremely expensive, oil and gas energy are used in spite of various problems of environmental pollution for heating, high cost of equipment, and safety problems. That is the fact.

Further, by transferring heat from a heat source to an electrothermal catalyst, circulating the heat and indirectly heating the object to be heated, local concentrated heating by the direct heating method is avoided, and heat is applied to a large area. A heating apparatus using a heat transfer medium that blows out hot air by a fan in a state where the heat can be dispersed is employed.

On the other hand, in a heating apparatus using such a heat transfer medium, since the heat source is a gas burner or an oil burner, it is very difficult to control the heat generation temperature. However, despite its high energy efficiency, there is still a situation in which the use is avoided, and the problem of environmental pollution still occurs, and the problems such as excessive use of facilities have not been solved.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a highly efficient heating system in which electric heat is used as a heat source and heat can be radiated using a heat transfer medium having an efficient heat transfer effect. And

[0007] Another object of the present invention is to provide a heat storage means for storing heat generated from a heat source to maintain the temperature within a certain range,
It is an object of the present invention to provide a warm air heater capable of performing effective heating by dissipating heat over a large surface area through a heat transfer medium pipe thermally coupled thereto.

It is still another object of the present invention to provide a warm air heater that uses electric heat as a heat source, reduces environmental pollution, and reduces facility and maintenance costs.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a case 14 having a warm air discharge port 10 on the upper side of the front surface and an intake fan 12 on the lower side of the back side. A plurality of heat transfer medium pipes 18 and 18A having a plurality of radial radiating fins 32 arranged on an outer surface thereof, and a heat storage in which the lower end portions of the heat transfer medium pipes 18 and 18A are connected and the electric heater 20 is disposed. Blocks 16, 1
6A.

The heat transfer medium pipes 18 and 18A are composed of a sealed pipe body 28 and contain liquid heat transfer mediums 30 and 30A therein. The heat storage block 16 is formed by laminating a plurality of plates 22 made of a metal having a high thermal conductivity.

According to another embodiment of the present invention, the heat storage block comprises a heat storage block 16A in the form of a sealed container and a heat transfer medium 30A such as a heat transfer medium 30A housed in a heat transfer medium pipe 18A. May be accommodated. Also, the heat transfer medium pipes 18 and 18A
The above problem has been solved by a hot air heater characterized in that the pipe body 28 and the heat storage blocks 16 and 16A are integrally formed.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an exploded view showing the entire structure of a warm air heater according to the present invention. The hot air heater of the present invention shown in FIGS. 1 and 2 has a hot air outlet 1
0 and a case 14 having an intake fan 12 on the lower side on the back side.
Consists of The heat storage block 1 is provided inside the case 14.
6 and a number of heat transfer medium pipes 18 thermally connected thereto.

An electric heater 20 is connected to the heat storage block 16 so that the heat generated by the electric heater 20 can be transferred to the heat transfer medium pipe 18 by holding the heat generated by the electric heater 20.

According to the first embodiment of the present invention, the heat storage block 16 is formed by laminating a plurality of plates 22 made of, for example, aluminum or copper having high thermal conductivity. Between the plate bodies 22, an electric heater 20 as a heat source is provided in a concave groove 24 formed on one surface of the adjacent plate body 22.
Are inserted and arranged.

Therefore, when a current flows through the electric heater 20 and heat is generated by the resistance heat, the heat is transmitted to the heat storage block 16 composed of a number of plates 22. The heat storage block 16 is formed of a number of plates 22, and the lower end of the heat transfer medium pipe 18 is inserted into and supported by a number of insertion holes 26 formed in the plate 22.

The heat transfer medium pipe 18 comprises a sealed pipe body 28, in which the vapor pressure is low, the heat stability is good, the corrosiveness is low, and the boiling heat and the heat of evaporation are large. Non-flammable organic or inorganic liquid heat transfer medium 30 (and / or high boiling point and evaporation temperature)
Are completely filled and sealed. Pipe body 28
Is made of a metal having good thermal conductivity made of aluminum or copper.

On the outer surface of the pipe body 28, a number of radial radiating fins 32 made of a metal material such as the material of the pipe body 28 are formed. The lower end of the heat transfer medium pipe 18 is inserted into the insertion hole 26 of the heat storage block 16 in close contact with the heat storage block 16.
Thus, effective heat transfer to the heat transfer medium pipe 18 can be performed.

On the other hand, a control panel 34 for controlling the operation of the electric heater 20 and the intake fan 12 is provided on the front of the case 14, and a temperature sensor 36 is provided on the back of the case 14 to maintain a set temperature range. be able to.

FIG. 5 shows another embodiment of the heat storage block, in which the heat storage block 16A is in the form of a sealed container and is housed in a heat transfer medium pipe 18. A heat transfer medium 30A similar to that described above is accommodated therein, and an electric heater 20A is disposed inside. The lower end portions of the multiple heat transfer medium pipes 18A as in the first embodiment are inserted into the heat storage block 16A so as to be able to be sealed. In another embodiment, the heat transfer medium pipe 18A and the heat storage block 16A have an integral structure, and the same heat transfer medium may be housed inside them.

In the warm air heater according to the present invention, the temperature of the heater is set through the control panel 34, and the electric current is supplied to the electric heater 20 through the control panel 34.
Activate 2 to start heating. The electric heater 20 generates heat, and this heat heats the heat storage block 16.

The heat storage block 16 has a large thermal mass, stores a large amount of heat, and transfers the stored heat to the heat transfer medium pipe 18 within a set temperature range. The heat storage block 16 is formed by laminating a number of plates 22 made of aluminum or copper having high thermal conductivity.
The lower end 8 is closely inserted into such a heat storage block 16, and a heat transfer medium 30 having excellent heat conductivity is accommodated therein, so that the heat of the heat storage block 16 can be quickly increased. Can be effectively transmitted to the heat transfer medium pipe 18.

Such heat is radiated through the radiating fins 32 of the heat transfer medium pipe 18 having the radiating surface area maximized, and heats the air sucked by the intake fan 12 to form warm air formed on the front surface of the case 14. The room in which the warm air heater is installed is heated through the discharge port 10.

As described above, the heat storage block 16 is formed by laminating a plurality of plates 22 having a thermal conductivity of metal. When these are heated by the electric heater 20, a large amount of heat is accumulated. The power supply can be temporarily interrupted and the heat can be transferred to the heat transfer medium pipe 18 continuously for a considerable amount of time.

[0024]

The present invention uses electric heat as a heat source, makes it possible to radiate heat using a heat transfer medium having an efficient heat transfer effect, enables high-efficiency heating and stores heat generated from the heat source. In this way, a large surface area is radiated through a heat transfer medium pipe which is thermally coupled to a heat storage means for maintaining a temperature in a certain range, thereby enabling effective heating. Further, the present invention provides a hot air heater having a simple structure and minimizing facility costs and maintenance costs, and can be used as an optimal room heating capacity.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a warm air heater according to the present invention.

FIG. 2 is a sectional view showing the internal structure of the hot air heater of the present invention.

FIG. 3 is an exploded perspective view showing a heat transfer medium pipe and a heat storage block serving as heat storage means.

FIG. 4 is a partial cross-sectional view showing a heat transfer medium pipe and a heat storage block serving as heat storage means.

FIG. 5 is a cross-sectional view of a heat transfer medium pipe and a heat storage block that is a heat storage unit according to another embodiment of the present invention.

[Explanation of symbols]

 10 is a hot air discharge port 12 is an intake fan 14 is a case 16 is a heat storage block 18 is a heat transfer medium pipe 20 is an electric heater 22 is a plate 26 is an insertion hole 28 is a pipe body 30 is a heat transfer medium 32 is a radiation fin 34 Is the control panel 36 is the temperature sensor

Claims (5)

[Claims] 1. A case 14 having a hot air discharge port 10 on an upper side of a front surface, an intake fan 12 on a lower side of a back side, and a plurality of radial radiating fins 32 disposed in the case 14 and formed on an outer surface thereof.
A number of heat transfer medium pipes 18, 18A,
A heat storage block 16 in which lower ends of the heat transfer medium pipes 18 and 18A are connected and an electric heater 20 is disposed;
A hot air heater comprising 16A. 2. The hot air heating system according to claim 1, wherein the heat transfer medium pipes (18, 18A) are formed of a sealed pipe body (28), and the liquid heat transfer media (30, 30A) are housed therein. Machine. 3. The hot air heater according to claim 1, wherein the heat storage block 16 is formed by laminating a plurality of plates 22 made of a metal having a high thermal conductivity. 4. The heat storage block comprises a sealed container-shaped heat storage block 16A and contains therein a heat transfer medium 30A such as a heat transfer medium 30A housed in a heat transfer medium pipe 18A. Claim 1.
Hot air heater as described. 5. The hot air heater according to claim 1, wherein the pipe body 28 of the heat transfer medium pipes 18 and 18A and the heat storage blocks 16 and 16A are integrally formed.