JP2005214605A - Electric heating fan heater of low operation cost - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fan heater with a structure as an electric heating fan heater, not only reducing high operation costs provided by a conventional electric heater but also being more economic than the operation costs of a kerosene fan heater with maintaining similar heating property as the kerosene fan heater. <P>SOLUTION: High temperature energy radiated on the back surface part of a plane heating body as a loss heat source is captured as a fluid by a multi-blade fan via an inside composing iron plate, mixed with outside air sucked at the same time, and discharged from blowout holes formed on the surface and outer circumferential part of the plane heating body with the structure for heating the mixed fluid. The thermal energy with high temperature by the heat source on the front surface part of the plane heating body is moved as a fluid and a room is circulated and heated by the synergistically heated fluid. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a kerosene fan heater and an electric heating fan heater having a lower operating cost than a conventional electric heater.

  Conventionally, there is an electric heater called an electric heater as a heater that directly uses electric power. The heater of a red-heated heating element reflects and inverts the heat with a reflector on the back, and the front is covered. A structure for heating, and in recent years a structure in which a sheet heating element such as ceramic or carbon fiber is energized and heated, the sheet temperature is increased, and the radiant heat is used to heat the front surface of the heating appliance in the same manner as described above. There are things.

  Also, kerosene is directly burned, the red-heated core heating element is reflected by the reflector on the back, and the kerosene stove that heats the front and the fuel vaporized from kerosene are mixed with the combustion air for gasification and ignition. A kerosene fan that heats the air in the heating appliance and circulates and heats the interior of the room by warm air blown out from the front hot air discharge port by the axial fan provided through the air intake on the back. There is a heater configuration.

The problem to be solved will be described in the configuration of the conventional heating appliance described above.
First of all, electric heaters that use electric power directly to heat the heating element are heating appliances, and it is only possible to heat the front 50cm or so. Becomes larger, power consumption increases to 1000 W and 1250 W, and the economic burden becomes extremely large. Furthermore, it is feared that the use of these electric powers in indoor wiring in ordinary households is even a fire hazard, and there are heaters that generate far-infrared rays with a remarkable heat receiving effect due to the appearance of various types of heating elements in recent years. However, the structure is not enough to warm the whole room.

  In addition, in the electric heater as a new heating element that emits far infrared rays, the amount of heat emitted to the front surface of the planar heating element in the planar heating element unit has been treated to amplify far infrared rays. A heat insulating plate and a panel are installed on the rear surface where the amount of heat is generated. However, there is no structure for making the amount of heat U evening.

Next, in a kerosene stove and kerosene fan heater using kerosene as fuel, oxygen (O ₂ ) is consumed by combustion, and carbon dioxide (CO ₂ ) and carbon monoxide gas (CO) are generated. Recently, volatile organic compounds originating from petroleum are prone to be generated by incomplete combustion, which significantly contaminates indoor air and presents a major problem in maintaining health, as well as carbon dioxide. The increase in concentration has led to the deterioration of the global warming phenomenon.

  Furthermore, kerosene as a combustion fuel is a finite resource buried in the earth, and if kerosene is not used as a fan heater, this resource can be used on the other side, which is useful for significant activation of resources. Moreover, this kerosene fuel has many problems in terms of maintenance and management, such as securing a storage location from ordering and troublesome work of supplying kerosene to the fan heater.

  The present invention not only attempts to solve the problems of such a conventional structure, but the most significant feature is the configuration as an electric heating fan heater, which increases the expensive operating cost of the conventional electric heater. The objective is to realize an economical fan heater that is less expensive than the operating cost of this kerosene fan heater while maintaining the same heating performance as that of kerosene fan heater. is there.

  SUMMARY OF THE INVENTION A first problem solving means for overcoming and attaining the above object of the present invention is a carbon fiber planar heating element that emits far-infrared rays, which is one of the conventional structures, and has excellent heat generation capability. In the electric heater as the heat source, the present invention captures the high temperature energy that is radiated to the back surface of the sheet heating element and becomes the loss heat source as a fluid with a sirocco fan via the internal iron plate, and at the same time It is mixed with the sucked outside air, and the mixed fluid is heated and discharged from the blow holes provided on the surface and the outer periphery of the unit of the sheet heating element, and becomes a high temperature at the heat source at the front part of the sheet heating element. The heat energy was moved as a fluid, and the room was circulated and heated with a fluid that was heated synergistically.

  The second problem-solving means is that in a conventional sheet heating unit that generates a loss heat source at the back surface of the sheet heating element, a special heat insulator and a rear panel configured on the back surface are combined with each other in a reflective efficiency. Since the U-turn is generated with a good configuration, the amount of heat passing through the special heat plate that generates far infrared rays in the front portion is greatly increased.

  As described above, the configuration according to the present invention is shown in FIG. 1 to FIG. 5, and the remarkable effect is that the loss heat source on the back surface of the planar heating element is used thoroughly and effectively. This is a configuration in which the loss heat source at the back is not generated as much as possible. With this configuration, power consumption can be greatly reduced compared to conventional electric heaters. In addition, according to the configuration of the present invention, the electric heating fan heater can be accommodated at a cost lower than the operating cost of the kerosene fan heater.

Next, according to the configuration of the present invention, effects compared with the conventional electric heater and kerosene fan heater are listed.
(1) The operating cost was lower than the conventional electric heater.
(2) The operating cost is lower than that of a commercially available kerosene fan heater (8 tatami mat type).
(3) No need for kerosene or replenishment. The management effort can be omitted.
(4) Since no kerosene was used, there were no health problems.
(5) It helps to prevent global warming.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

In the figure, 1 is a frame, 2 is an internal structural iron plate, and a three-surface heating element unit is fixed to the inner front part. 4 includes a far-infrared carbon heater. 5 is a motor and a 6 sirocco fan is constructed at the shaft end, and the three-surface heating element unit is provided in a form that is sandwiched by two internal component iron plates and 2A flat plates each having 11 intake holes. Reference numeral 7 denotes a rear cover of the motor, which constitutes an 8 filter, and has 12 outside air suction holes in 2 internal constituent iron plates. The three-surface heating element unit is fixed to the 14 fixing boss by providing a gap between G _{1 and} G ₂ . Ten blowout holes are provided on the outer periphery of the surface. Reference numeral 13 denotes a return hole, which sucks the loss heat in the gaps G _{1 and} G ₂ from the 11 intake holes by a 6 sirocco fan.

  Next, the configuration of the three-surface heating element unit will be described with reference to FIG. 3A is a front panel, 3B is a carbon fiber planar heating element, and 3C and 3D are insulating mica to protect the heating element. 3E is a far-infrared heat radiation plate, 3F is a rear heat insulating plate, and 3G is a rear panel.

The operation of the above configuration will be described below. In FIG. 5, the three-surface heating element unit is composed of two internal iron plates and a 2A flat plate, and is fixed to a 14-fixed boss by providing a gap G ₁ and a side gap G ₂ . When energized by the operation of 9 switches, the front side of the trihedral heating element unit has 50% front, 30% to 35% U-turn, and 80 to 85% of the heat generated is far infrared. Is emitted as. (The configuration of the three-surface heating element unit and the heat generation amount% will be described later.) Therefore, 15 to 20% of loss heat stagnates in the gaps G ₁ and G ₂ of the three-surface heating element unit. 6 sirocco fan is rotated by the rotation of the motor, Q is heated by the loss heat of G ₁ and G ₂ from 12 outside air intake holes and from the 11 intake holes through 13 return holes. Air is adjusted to inhale at a ratio of approximately 2: 1. Since the fluid flows of P and Q are repeatedly operated, the R discharge air that has been repeatedly heated is discharged from the 10 outlets toward the C center, and the three-surface heating element unit is exposed to the front surface. It mixes with the far-infrared heat and circulates and heats the room.

  Next, the configuration and operation of FIG. 4 will be described. When the 3B carbon fiber sheet heating element is energized, the far infrared heat is generated 50% on the front surface and 50% on the rear surface. At this time, the far-infrared heat that appears on the rear surface has a poor radiation efficiency unless it is turned to the front as much as possible. For this reason, the surface roughness of the 3F rear panel and the 3G rear panel on the left and front surfaces of this unit is mirror-finished to improve the reflection efficiency, so the heat coming to the rear surface is within 50%. The structure which can make a U-turn for 30-35% of is considered. This configuration can also be applied to a planar heating element unit of a conventional electric heater.

  As described above, the reflection effect of the three-sided heating element and the loss heat that is inevitably generated in a small amount can be obtained by circulating the amount of heat radiation to the front of the three-sided heating element in a configuration that circulates air together with the capture by the sirocco fan. This effect makes it possible to configure the product with lower power consumption than the conventional electric heater.

Next, the effects described above are compared numerically.
In a conventional electric heater (with a sheet heating element and a far-infrared carbon heater), half of the 50% heat to the rear surface of the sheet heating element is considered to be lost.
(1) When this electric heater is used for 8 hours a day (see Fig. 6 and Fig. 7)
・ Quick heating operation 880W × 1.5Hr = 1.32KWHr × ¥ 23 / 1KWHr = ¥ 30.36
・ Normal operation 550W × 3Hr = 1.65KWHr × ¥ 23 / 1KWHr = ¥ 37.95
・ Weak operation 380W × 3.5Hr = 1.33KWHr × ¥ 23 / 1KWHr = ¥ 30.59
Total ¥ 98.9 yen / 8Hr = ¥ 12.3625 / 1Hr
(2) Kerosene fan heater (8 tatami mat type) Room temperature 7 ° C → 22 ° C (see Fig. 8)
・ Use for 42 hours, consumption of 9.5 liters of kerosene, price of kerosene ¥ 53 liters (upon delivery)
Therefore, 9.5 / 42 = 0.22619l / Hr ... Kerosene consumption per hour
0.22619 × ¥ 53 = ¥ 11.98807 / 1Hr
(3) The present invention, an electric fan heater, when used for 8 hours a day, heat to the rear surface of the sheet heating element, 50% of which can be made 30 to 35% U-turn and further loss 15 to 20% W was selected as the power consumption was about 10% lower than that of the electric heater in (1), taking into account that the heat of the sirocco fan was collected significantly.
・ Quick heating operation 800W × 1.5Hr = 1.2KWHr × ¥ 23 / 1KWHr = ¥ 27.6
・ Normal operation 500W × 3Hr = 1.5KWHr × ¥ 23 / 1kWhr = ¥ 34.5
・ Weak operation 340W × 3.5Hr = 1.19KWHr × ¥ 23 / 1KWHr = ¥ 27.37
・ Fan operation 20W × 8Hr = 0.16KWHr × ¥ 23 / 1KWHr = ¥ 3.68
Total ¥ 93.15 / 8Hr = ¥ 11.64375 / 1Hr

Next, measure the temperature at the instrument center, center horizontal position, and front 30 cm above (2) and (3).

  From the above numerical values, the operation cost of the electric heating fan heater is the lowest, and the electric fan fan heater is comparable to the kerosene fan heater after 20 minutes of the front temperature of the fan.

Electric heating fan heater front view showing an embodiment of the present invention Longitudinal section of the electric heat fan heater Same electric heat fan heater, AA 'arrow sectional view of FIG. Analysis diagram of planar heating element of the same electric fan heater Detailed flow diagram of heating fluid for the same electric fan heater Front view of conventional electric heater Vertical section of the same electric heater External view of kerosene fan heater

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 Internal structure iron plate 3 Planar heating element unit 3B Carbon woven surface heating element 3F Rear heat insulation board 3G Rear panel 3E Far infrared radiation plate 3C, 3D insulation mica 4 Far infrared carbon heater 5 Motor 6 Sirocco fan 8 Filter 10 Blowout hole 11 Intake hole 12 Outside air suction hole 13 Return hole P Outside air Q Heated air R Discharged air

Claims (2)

  The front surface of the frame is configured to dissipate far-infrared heat with a planar heating element unit, and has a blowout hole for discharging heated air around it, and the rear surface of the frame that houses the planar heating element unit Has a sirocco fan that is driven by a motor in the frame, and sucks outside air by rotation of the sirocco fan. The air was sucked into the inside through the return hole of the outer peripheral plate containing the sheet heating element unit, and was placed on the sirocco fan and the sheet heating element unit while being heated by the loss heat of the sheet heating element unit. The sirocco fan sucks air from the air intake holes provided in the flat plate, and the repeated gas is heated in synergy with the outside air from the back of the frame. Electric fan heater which was characterized by a structure in which allowed to.   As a planar heating element unit, there is a heat source constituting a heating element, the structure is provided with a carbon fiber planar heating element in the center, protected by insulating mica on the front and rear surfaces, and in front of the front insulating mica A carbon fiber surface of the rear heat insulating plate and the rear panel, provided with a far-infrared heat dissipating plate and having a rear heat insulating plate behind the rear insulating mica and a rear panel further rearward. The carbon fiber planar heating element unit is characterized in that the surface roughness close to the cylindrical heating element is a mirror finish.

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