JP2001336750A - Space heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To promote heat transfer from a high temperature gas to a radiant body in a space heater provided with the radiant body. SOLUTION: This space heater comprises a high-temperature generating means 11, and a heat-transfer promoting means 13 finding a stream of a high temperature gas. A radiant body 12 comprises a heat collection face 14 heated by the high temperature gas, and a radiant face 15 generating a radiant energy. An air path 17 connects an air path 16 for heating the radiant body to the high-temperature gas-generating means 11. In the above constitution, the high temperature gas stream is disturbed by the heat-transfer promotion means 13 provided on the face 14 of the radiant body 12, and development of a boundary layer to be generated on the heat-collecting face 14 is restrained. Accordingly, heat of the high temperature gas can be efficiently transferred to the radiant face 15, and a high temperature of the radiant body can be obtained, even when the temperature of the high temperature gas is comparatively low.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating device using combustion heat, and more particularly to a heating device using radiant heat.

[0002]

2. Description of the Related Art A conventional heating device of this kind is disclosed in
What was described in 11548 gazette was common. This heating device is provided with a burner 1 provided at a lower portion of the main body as shown in FIG. 1, a hollow thin box-shaped heat exchanger 2 for passing a combustion gas from the burner 1, and formed on both sides of the heat exchanger. A vertically elongated opening 3 and the heat exchanger 2
A far-infrared paint 4 painted on at least the front surface of the body, a far-infrared paint painted on at least the front surface of the heat exchanger, and indoor air is blown to the heat exchanger 2 to exchange heat and discharge the main body as warm air. Convection fan 5 that discharges more
The heat exchanger 2 has a hollow interior so that the combustion gas 6 from the burner 1 passes therethrough and is provided with a passage 6 to provide a passage 6. A part of the passage 7 is provided so that the combustion gas can reach all parts of the heat exchanger. , A concave bead 8 is provided and discharged from the opening 3.

[0003] The combustion gas generated by the burner passes through the heat exchanger 2 and is heated to 300 ° C to 500 ° C to radiate far-infrared rays from the front surface coated with far-infrared paint to perform radiant heating. At the same time, the indoor air taken in by the convection fan 5 is blown along the rear surface of the heat exchanger 2, mixed with the combustion gas discharged at the opening 3 of the heat exchanger 2, and discharged into the room as warm air. Perform heating.

[0004]

However, in the above-described conventional heating apparatus, the combustion gas flows into the heat exchanger and heats the heat exchanger by convective heat transfer. The amount of convective heat transfer is represented by (Equation 1). As described above, the amount of radiation from the heat exchanger is proportional to the difference between the heat exchanger temperature and the combustion gas temperature.
It is proportional to the fourth power difference between the power and the temperature of the radiation heat absorbing surface. In the configuration of the heat exchanger in the conventional heating device, the areas of the combustion gas and the heat exchanger are almost equal, and the heat transfer coefficient of the heat exchanger is about 10 W / m ² K because of the flat plate. 300 ℃
In order to achieve this, it is necessary to increase the difference between the temperature of the combustion gas and the temperature of the panel member, and the temperature of the combustion gas introduced into the panel member must be as high as about 870 ° C., so that the burner or heat exchanger can withstand the high temperature. Need to be made of material,
In addition, it was necessary to directly heat the heat exchanger with the flame generated by the burner. Further, the thickness of the boundary layer increases as the flow of the combustion gas in the heat exchanger passage becomes downstream, and the heat exchanger has a problem that the temperature near the open end is lower than that near the burner.

[0005]

According to the present invention, there is provided a high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by the heat of the high-temperature gas, and a radiation surface for generating radiant energy. A radiator provided with a means for disturbing the flow of the high-temperature gas to promote heat transfer, a radiator heating air path for guiding the high-temperature gas to the heat collecting surface of the radiator, a radiator heating air path and a high-temperature gas generating means. It is configured to be composed of connecting air paths.

According to the above configuration, the radiator is provided with a means for disturbing the flow of the high-temperature gas, and the development of the boundary layer generated on the heat-collecting surface can be suppressed, so that the heat of the high-temperature gas can be efficiently transmitted to the radiant surface. . Therefore, a high radiator temperature can be obtained even if the temperature of the high-temperature gas is low. Further, since the boundary layer does not develop, the temperature of the radiation surface can be made uniform.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A heating apparatus according to a first aspect of the present invention comprises a high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by the heat of the high-temperature gas, and a radiation surface for generating radiant energy. A radiator provided with heat transfer enhancing means that disturbs the flow of high-temperature gas on the surface of the radiator, a radiator heating air duct that guides the high-temperature gas to the radiator's heating surface, a radiator heating air passage, and hot gas generation It consists of a connecting wind path connecting the means. And, by the above configuration, since the flow of the high-temperature gas is disturbed, the development of the boundary layer is suppressed, so that the heat of the high-temperature gas is efficiently transmitted to the radiation surface, and the difference between the temperature of the high-temperature gas and the radiation surface is reduced, and The temperature of the radiation surface can be made more uniform.

A heating device according to a second aspect of the present invention has a high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by the heat of the high-temperature gas, and a radiation surface for generating radiant energy. Radiator provided with protrusions to disturb the flow of high-temperature gas as heat transfer enhancing means, radiator heating air path for guiding high-temperature gas to the heat collecting surface of radiator, radiator heating air path and high-temperature gas generation It consists of a connecting wind path connecting the means. With the above configuration, the flow of the hot gas along the heat collecting surface is disturbed by the projections, so that the development of the boundary layer is suppressed, so that the heat of the hot gas is efficiently transmitted to the radiation surface, and the temperature of the hot gas and the radiation surface And the temperature of the radiation surface can be made more uniform.

A heating apparatus according to a third aspect of the present invention has a high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by the heat of the high-temperature gas, and a radiation surface for generating radiant energy. A radiator provided with a recess to disturb the flow of high-temperature gas as a means of promoting heat transfer, a radiator heating air path that guides the high-temperature gas to the heat collecting surface of the radiator, a radiator heating air path, and high-temperature gas generation. It consists of a connecting wind path connecting the means. And with the above configuration, the flow of the high-temperature gas along the heat collecting surface is interrupted by the depression, so that the development of the boundary layer is suppressed,
The heat of the high-temperature gas is efficiently transmitted to the radiation surface, so that the temperature difference between the high-temperature gas and the radiation surface can be reduced, and the temperature of the radiation surface can be made more uniform.

A heating apparatus according to a fourth aspect of the present invention has a high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by the heat of the high-temperature gas, and a radiation surface for generating radiant energy. A radiator having a step on the heat-collecting surface to disturb the flow of the high-temperature gas as a heat transfer promoting means, a radiator heating air passage for guiding the high-temperature gas to the heat-collecting surface of the radiator, and a radiator heating air passage And a high-temperature gas generating means. With the above configuration, the flow of the high-temperature gas along the heat-collecting surface is evenly interrupted by the steps, so that the development of the boundary layer is suppressed. In other words, the difference between the temperature of the high-temperature gas and the temperature of the radiation surface can be made smaller, and the temperature of the radiation surface can be made more uniform.

A heating apparatus according to a fifth aspect of the present invention has a high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by heat of the high-temperature gas, and a radiation surface for generating radiant energy. A radiator provided with a communicating airflow path through which high-temperature gas flows from the radiating surface to the radiating surface, and a radiating surface provided with a heat transfer promoting means for disturbing the flow of the high-temperature gas on the radiating surface, and a high-temperature It comprises a radiator heating air path for guiding gas, and a connecting air path connecting the radiator heating air path and the high-temperature gas generating means. With the above configuration, the high-temperature gas also flows from the radiator heating surface to the radiator radiating surface, and heats the radiating surface from both the heating surface side and the radiating surface side. The heat transfer area of the hot gas is greatly increased, and the flow of the hot gas is disturbed by the heat transfer promoting means, so that the development of the boundary layer is suppressed, the heat of the hot gas is efficiently transmitted to the radiation surface, and the temperature and radiation of the hot gas The temperature difference between the surfaces can be made smaller, and the temperature of the radiation surface can be made more uniform.

A heating device according to a sixth aspect of the present invention has a high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by the heat of the high-temperature gas, and a radiation surface for generating radiant energy. A hole with a louver with an opening bent to create turbulence as a continuous air path through which high-temperature gas flows from the radiating surface to the radiating surface.The radiating surface is also a heat collecting surface. The radiator, the radiator heating air passage for guiding the high-temperature gas to the heat collecting surface of the radiator, and a connecting air passage connecting the radiator heating air passage and the high-temperature gas generating means. With the above configuration, the high-temperature gas also flows from the radiant body heat-collecting surface to the radiant body radiant surface, and heats the radiant surface from both the heat-collecting surface side and the radiant surface side. The heat transfer area is greatly increased, and the flow of the hot gas is disturbed by bending at the louver opening, so the development of the boundary layer is suppressed, and the heat of the hot gas is efficiently transmitted to the radiation surface, and the temperature and radiation of the hot gas The temperature difference between the surfaces can be made smaller, and the temperature of the radiation surface can be made more uniform.

A heating apparatus according to a seventh aspect of the present invention has a high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by the heat of the high-temperature gas, and a radiation surface for generating radiant energy. A hole with a louver is provided as a communicating air passage through which the high-temperature gas flows from the radiating surface to the radiating surface. The radiator includes an arranged radiator, a radiator heating air path for guiding a high-temperature gas to a heat collecting surface of the radiator, and a connecting air path connecting the radiator heating air path and the high-temperature gas generating means. With the above configuration, the high-temperature gas also flows from the radiator heating surface to the radiator radiating surface, and heats the radiating surface from both the heating surface side and the radiating surface side. The heat transfer area of the hot gas greatly increases, and the hot gas blown from the louver collides with each other, disturbing the flow of the hot gas and suppressing the development of the boundary layer. And the temperature difference between the radiation surface and the radiation surface, and the temperature of the radiation surface can be made more uniform.

A heating apparatus according to claim 8 of the present invention has a high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by the heat of the high-temperature gas, and a radiation surface for generating radiant energy. A hole with a louver is provided as a communicating air passage through which the high-temperature gas flows from the radiating surface.The radiating surface is also used as a heat-collecting surface, and the high-temperature gas coming out of the communicating air passage collides with another louver to disturb the flow of the high-temperature gas. A radiator in which a louver with turbulence generating means is arranged, a radiator heating air path that guides high-temperature gas to the heat collecting surface of the radiator, and a connecting air path that connects the radiator heating air path and the high-temperature gas generating means Consists of With the above configuration, the high-temperature gas also flows from the radiator heating surface to the radiator radiating surface, and heats the radiating surface from both the heating surface side and the radiating surface side. The heat transfer area of the hot gas greatly increases, and the turbulence generating means attached to the louver surface disrupts the flow of the hot gas and suppresses the development of the boundary layer, so that the heat of the hot gas is efficiently transmitted to the radiation surface, The difference between the temperature and the radiation surface can be made smaller, and the temperature of the radiation surface can be made more uniform.

A heating apparatus according to a ninth aspect of the present invention has a high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by the heat of the high-temperature gas, and a radiation surface for generating radiant energy. A hole with a louver is provided as a communicating air passage through which the high-temperature gas flows from the radiating surface.The radiating surface is also used as a heat-collecting surface, and the direction of the high-temperature gas flowing out of the communicating air passage is directed downward in the vertical direction. The radiator is provided with a radiator in which louvers are arranged so as to disturb the radiator, a radiator heating air path for guiding a high-temperature gas to the heat collecting surface of the radiator, and a connecting air path connecting the radiator heating air path and the high-temperature gas generating means. And by the above configuration, the high-temperature gas flows from the heat collecting surface to the radiation surface,
Since the radiation surface is heated from both the heat collection surface side and the radiation surface side,
The heat transfer area when the high-temperature gas transfers heat to the radiator greatly increases, and once the high-temperature gas flows downward in the vertical direction, the flow is disturbed by the draft effect, so the development of the boundary layer is suppressed, and the flow direction Changes twice and passes through the same place twice, so the actual heat collection area increases, the heat of the hot gas is efficiently transmitted to the radiation surface, and the temperature difference between the hot gas temperature and the radiation surface is reduced, and the temperature of the radiation surface is reduced. Changes can be reduced.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a cutaway perspective view of a main part of a heating apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a sectional view of a radiator. 1 and 2, reference numeral 11 denotes a high-temperature gas generating means for generating a high-temperature gas such as a circular burner for burning oil or gas fuel, and 12 denotes a high-temperature gas provided with a projection 13 for suppressing the development of a boundary layer. Is a radiator having a heat collecting surface 14 heated by the heat of the radiator and a radiation surface 15 for generating radiant energy, and a radiator heating air passage 16 for guiding a high-temperature gas is attached to the heat collecting surface 14 of the radiator 12.
The high-temperature gas is guided from the high-temperature gas generation means 11 to the radiator heating air path 16 by the connection air path 17.

Next, the operation and action will be described. The high-temperature gas generated in the high-temperature gas generating means 11 is guided by the connecting air path 17 to the radiator heating air path inlet 18 provided below the radiator heating air path 16 and radiated. While passing through the body heating air passage 16 and increasing the wind speed by the draft action, the air is guided to the radiator heating air passage outlet 19 provided above the radiator heating air passage 16. Therefore, the high-temperature gas heats the heat collecting surface 14 in the radiant body heating air passage 16. And the radiator is about 30
When heated to 0 ° C., far infrared rays are radiated from the radiation surface, and the radiation heats the room. For this reason, a comfortable heating feeling can be obtained without direct wind blowing on the human body. At this time, the flow of the hot gas along the heat collection surface is disturbed by the protrusions, which suppresses the development of the boundary layer, so that the heat of the hot gas is efficiently transmitted to the radiator, and the temperature difference between the hot gas and the radiator And the temperature of the radiator can be made more uniform.

(Embodiment 2) FIG. 3 is a cutaway perspective view of a main part of a heating apparatus according to Embodiment 2 of the present invention, and FIG. 4 is a sectional view of a radiator.

The second embodiment is different from the first embodiment in that a depression 20 is provided on the heat collecting surface 14 of the radiator to cut off the flow of the high-temperature gas and suppress the development of the boundary layer.

The components having the same reference numerals as in the first embodiment have the same structure, and the description is omitted.

Next, the operation and action will be described. Since the flow of the high-temperature gas along the heat-receiving surface is interrupted by the depression 20 and the development of the boundary layer is suppressed, the heat of the high-temperature gas is efficiently transmitted to the radiator, The temperature difference between the gas temperature and the radiator can be made smaller, and the temperature of the radiator can be made more uniform.

(Embodiment 3) FIG. 5 is a cutaway perspective view of a main part of a heating apparatus according to Embodiment 3 of the present invention, and FIG. 6 is a sectional view of a radiator.

The third embodiment is different from the first embodiment in that the flow of the high-temperature gas on the heat collecting surface 14 of the radiator is cut off to suppress the development of the boundary layer and to increase the area of the heat collecting surface 14. Is provided with a step 21 on the heat-collecting surface.

The components having the same reference numerals as in the first embodiment have the same structure, and the description will be omitted.

Next, the operation and operation will be described. The flow of the high-temperature gas along the heat-collecting surface is uniformly interrupted by the step 21 to suppress the development of the boundary layer. Heat is efficiently transmitted to the radiator, reducing the temperature difference between the high-temperature gas and the radiator,
The temperature of the radiator can be made more uniform.

(Embodiment 4) FIG. 7 is a cutaway perspective view of a main part of a heating device according to Embodiment 4 of the present invention, and FIG. 8 is a sectional view of a radiator.

The fourth embodiment is different from the first embodiment in that a hole 22 having a louver is provided as a communicating air passage on the radiation surface 15 as a communicating air passage through which a high-temperature gas flows. The opening 23 of the louver is bent so as to disturb the flow of the louver.

The components having the same reference numerals as in the first embodiment have the same structure, and the description is omitted.

Next, the operation and action will be described. The high-temperature gas flows from the heat collecting surface 14 to the radiation surface 15 through the hole 22 having the louver, and heats the radiator from both the heat collecting surface side and the radiation surface side. In addition, the heat transfer area when the high-temperature gas transfers heat to the radiator is greatly increased, and since the louver also serves as a radiator, the hole does not reduce the area of the radiant surface. Further, since the opening 23 of the louver is bent, the flow of the high-temperature gas is disturbed and the development of the boundary layer is suppressed, so that the heat of the high-temperature gas is efficiently transmitted to the radiator, and the temperature difference between the high-temperature gas and the radiator And the temperature of the radiator can be made more uniform.

(Embodiment 5) FIG. 9 is a cutaway perspective view of a main part of a heating apparatus according to Embodiment 5 of the present invention, and FIG. 10 is a detailed view of a radiator.

The fifth embodiment is different from the first embodiment in that a hole 22a having a louver is provided as a communicating air passage on the radiating surface 15 for flowing a high-temperature gas. The hole 22a having a louver is arranged so as to collide each other and disturb the flow of the high-temperature gas.

The components having the same reference numerals as in the first embodiment have the same structure, and the description is omitted.

Next, the operation and operation will be described. The high-temperature gas flows from the heat collecting surface 14 to the radiation surface 15 by the holes 22a having louvers, and heats the radiator 12 from both the heat collecting surface side and the radiation surface side. Therefore, the heat transfer area when the hot gas transfers heat to the radiator 12 is greatly increased, and the hot gas blown out from the hole 22a having the louver collides, so that the flow of the hot gas is disturbed and the development of the boundary layer is suppressed. Therefore, the heat of the high-temperature gas is efficiently transmitted to the radiator, so that the temperature difference between the high-temperature gas and the radiator can be reduced, and the temperature of the radiator can be made more uniform.

(Embodiment 6) FIG. 11 is a cutaway perspective view of a main part of a heating apparatus according to Embodiment 5 of the present invention, and FIG. 12 is a detailed view of a radiator.

The sixth embodiment differs from the fifth embodiment in that a hole 22b having a louver is arranged so that the high-temperature gas discharged from the louver opening 23b collides with another louver to disturb the flow of the high-temperature gas. That is.

The components having the same reference numerals as those of the fifth embodiment have the same structure, and the description is omitted.

Next, the operation and operation will be described. The high-temperature gas flows from the heat-collecting surface 14 to the radiation surface 15 and heats the radiator from both the heat-collecting surface side and the radiation surface side. The heat transfer area when heat is transferred to the louver is greatly increased, and the flow of the high-temperature gas is disturbed by the turbulence generating means 24 attached to the louver surface, and the development of the boundary layer is suppressed. The difference between the temperature of the high-temperature gas and the temperature of the radiator can be reduced, and the temperature of the radiator can be made more uniform.

(Embodiment 7) FIG. 13 is a cutaway perspective view of a main part of a heating apparatus according to Embodiment 7 of the present invention, and FIG. 14 is a detailed view of a radiator.

The seventh embodiment is different from the fifth embodiment in that the opening 23c of the hole having a louver is oriented vertically downward, and the hole 22c having a louver is arranged so as to disturb the flow of the high-temperature gas exiting from the communicating air passage by the draft effect. That is being done.

The components having the same reference numerals as those of the fifth embodiment have the same structure, and the description is omitted.

Next, the operation and operation will be described. The high-temperature gas flows from the heat-collecting surface to the radiation surface, and heats the radiation surface from both the heat-collecting surface and the radiation surface. The heat transfer area during transfer is greatly increased, and once the hot gas flows vertically downward, the draft effect disturbs the flow, so the development of the boundary layer is suppressed, and the flow direction changes from vertical downward to upward. Since the substantial contact area between the hot gas and the heat collecting surface increases, the heat of the hot gas is efficiently transmitted to the radiator, reducing the temperature difference between the hot gas and the radiator and reducing the temperature change of the radiator. Can be reduced.

[0043]

As described above, the heating device according to the first aspect of the present invention is provided with the heat transfer promoting means for disturbing the flow of the high-temperature gas, so that the development of the boundary layer on the heat collecting surface is suppressed, The heat of the high-temperature gas is efficiently transmitted to the radiation surface, and the temperature difference between the high-temperature gas and the radiation surface is reduced,
There is an effect that the temperature of the radiation surface can be made uniform.

Further, in the heating device according to the second aspect, since the projection is provided on the heat collecting surface of the radiator as a heat transfer promoting means, the flow of the high-temperature gas along the heat collecting surface is disturbed, and the heat collecting surface is disturbed. The effect that the development of the boundary layer is suppressed, the heat of the hot gas is efficiently transmitted to the radiation surface, and the temperature difference between the hot gas and the radiation surface can be made smaller and the temperature of the radiation surface can be made uniform There is.

Further, in the heating device according to the third aspect of the present invention, the flow of the high-temperature gas along the heat-collecting surface is interrupted because the heat-collecting surface of the radiator is provided with a depression as a means for promoting heat transfer. The effect that the development of the boundary layer is suppressed, the heat of the hot gas is efficiently transmitted to the radiation surface, and the temperature difference between the hot gas and the radiation surface can be made smaller and the temperature of the radiation surface can be made uniform There is.

Further, in the heating device according to the fourth aspect, since a step is provided as a heat transfer promoting means on the heat collecting surface of the radiator, the flow of the high-temperature gas flowing through the heat collecting surface is uniformly interrupted. The heat of the high-temperature gas is efficiently transmitted to the radiation surface because the area of the heat collection surface is increased,
There are effects that the difference between the temperature of the high-temperature gas and the radiation surface can be made smaller, and that the temperature change of the radiation surface can be reduced.

Further, in the heating device according to the fifth aspect, the radiator is provided with a communicating air passage through which a high-temperature gas flows from the heat collecting surface to the radiation surface, and the radiation surface is also a heat collecting surface, so that the heat collecting area is greatly increased. Further, the heat transfer promoting means is provided to disturb the flow of the high-temperature gas, so that the efficiency of heat transfer to the radiator increases, and the heat of the high-temperature gas is efficiently transmitted to the radiating surface, and the temperature of the high-temperature gas and the temperature of the radiating surface are increased. There is an effect that the difference can be made smaller and the temperature change of the radiation surface can be made smaller.

Further, in the heating device according to the sixth aspect, a hole having a louver is provided in the radiator as a communicating air passage through which a high-temperature gas flows from the heat collection surface to the radiation surface, and the radiation surface is also a heat collection surface and the heat collection area is small. Since the louver also becomes a radiator, the hole does not reduce the area of the radiation surface. Furthermore, the heat transfer enhancing means is provided in the opening to disturb the flow of the hot gas, so that the efficiency of heat transfer to the radiator increases, and the heat of the hot gas is efficiently transmitted to the radiation surface, and the temperature of the hot gas and the radiation There is an effect that the temperature difference of the surface can be made smaller and the temperature change of the radiation surface can be made smaller.

In the heating apparatus according to the present invention, a hole having a plurality of louvers is provided in the radiator as a continuous air passage through which a high-temperature gas flows from the heat collecting surface to the radiating surface, and the radiating surface is also a heat collecting surface. Since the area is greatly increased, and the louver also becomes a radiator, the hole does not reduce the area of the radiation surface.
In addition, louvers are provided so that high-temperature gases coming out of the open air path collide with each other, so that the flow of the high-temperature gas is disturbed and the development of the boundary layer can be suppressed, increasing the efficiency of heat transfer to the radiator and increasing the high-temperature gas. Is efficiently transmitted to the radiation surface, and there is an effect that the difference between the temperature of the high-temperature gas and the radiation surface can be made smaller and the temperature change of the radiation surface can be reduced.

In the heating apparatus according to the eighth aspect, a hole having a plurality of louvers is provided in the radiator as a communicating air passage through which a high-temperature gas flows from the heat-collecting surface to the radiation surface, and the radiation surface is also a heat-collecting surface. Since the area is greatly increased, and the louver also becomes a radiator, the hole does not reduce the area of the radiation surface.
In addition, since the louvers are provided so that the high-temperature gas coming out of the open air passage collides with other louvers, the flow of the high-temperature gas is disrupted, the development of the boundary layer can be suppressed, and the efficiency of heat transfer to the radiator is reduced. The heat of the rising high-temperature gas is efficiently transmitted to the radiation surface, and there is an effect that the temperature difference between the temperature of the high-temperature gas and the radiation surface can be reduced, and the temperature change of the radiation surface can be reduced.

Further, in the heating device according to the ninth aspect, a hole having a louver is provided in the radiator as a continuous air passage through which a high-temperature gas flows from the heat-collecting surface to the radiation surface, and the radiation surface is also a heat-collecting surface and the heat-collecting area is small. Since the louver also becomes a radiator, the hole does not reduce the area of the radiation surface. Furthermore, since the open end of the communicating air passage is vertically downward, the flow of the high-temperature gas that once flows vertically downward is disturbed by the draft effect, so that the development of the boundary layer can be suppressed, and the efficiency of heat transfer to the radiator And the heat of the hot gas is efficiently transmitted to the radiation surface, which has the effect of reducing the temperature difference between the temperature of the high-temperature gas and the radiation surface, and reducing the temperature change of the radiation surface.

[Brief description of the drawings]

FIG. 1 is a cutaway perspective view of a main part of a heating device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a radiator portion of the heating device.

FIG. 3 is a cutaway perspective view of a main part of a heating device according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a radiator portion of the heating device.

FIG. 5 is a cutaway perspective view of a main part of a heating device according to a third embodiment of the present invention.

FIG. 6 is a sectional view of a radiator portion of the heating device.

FIG. 7 is a cutaway perspective view of a main part of a heating device according to a fourth embodiment of the present invention.

FIG. 8 is a detailed view of a radiator portion of the heating device.

FIG. 9 is a cutaway perspective view of a main part of a heating device according to a fifth embodiment of the present invention.

FIG. 10 is a detailed view of a radiator portion of the heating device.

FIG. 11 is a cutaway perspective view of a main part of a heating device according to a sixth embodiment of the present invention.

FIG. 12 is a detailed view of a radiator portion of the heating device.

FIG. 13 is a cutaway perspective view of a main part of a heating device according to a seventh embodiment of the present invention.

FIG. 14 is a cross-sectional view of a radiator portion of the heating device.

FIG. 15 is a cutaway perspective view of a main part of a conventional heating device.

[Explanation of symbols]

 Reference Signs List 11 high-temperature gas generating means 12 radiator 13 protrusion (heat transfer promoting means) 14 heat-collecting surface 15 radiant surface 16 radiator heating air passage 17 connecting air passage 18 radiator heating air inlet 19 radiator heating air outlet 20 recess Heat transfer promoting means) 21 Step (heat transfer promoting means) 22 Hole with louver (heat transfer promoting means) 23 Opening of hole with louver 24 Turbulence generating means attached to louver surface

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Noriyuki Yoneno 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. 72) Inventor Motohiko Kitamura 1006 Kadoma Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F term (reference) 3L072 AA01 AC01

Claims (9)

[Claims] 1. A high-temperature gas generating means for generating a high-temperature gas, a heat-collecting surface heated by the heat of the high-temperature gas, and a radiation surface for generating radiant energy. A heating device comprising: a radiator provided with a means; a radiator heating air path for guiding a high-temperature gas to a heat collecting surface of the radiator; and a connecting air path connecting the radiator heating air path and the high-temperature gas generating means. 2. The heating device according to claim 1, wherein a projection is provided on a heat collecting surface of the radiator as the heat transfer promoting means. 3. The heating device according to claim 1, wherein a recess is provided on a heat collecting surface of the radiator as the heat transfer promoting means. 4. The heating device according to claim 1, wherein a step is provided on a heat collecting surface of the radiator as the heat transfer promoting means. 5. The heating apparatus according to claim 1, wherein a communicating air path through which a high-temperature gas flows from the heat collecting surface of the radiator to the radiation surface is provided as the heat transfer promoting means, and the radiation surface is also a heat collecting surface. 6. The heating device according to claim 5, wherein a hole having a louver provided with a turbulence generating means at an opening is provided as the communicating air passage. 7. The heating device according to claim 5, wherein a hole having a plurality of louvers is provided as the communication air passage, and the holes are arranged so as to collide with hot gas emitted therefrom. 8. A communicating air path, wherein a hole having a louver having a plurality of turbulence generating means attached to a louver surface is provided, and high-temperature gas coming out of the hole collides with another louver to disturb the flow. Item 6. A heating device according to Item 5. 9. The heating device according to claim 5, wherein a hole having a louver is provided as the communicating air passage, and an opening end thereof is vertically downward.