JP2003262400A - Heating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress temperature rise in components composing a heating device, wherein warm air heating can be easily switched to radiation heating, caused by temperature rise in a radiator during radiation heating. <P>SOLUTION: A cooling air duct 32 is provided to supply cooling airflow around the radiator 23 when high-temperature gas is switched to the radiator 23 side by a high-temperature gas switching means 29. Even the radiator 23 reaches a high temperature when the switching means 29 switches the high- temperature gas to the radiator 23 side, temperature rise inside the device can be suppressed. In addition, the radiator 23 can be set at high temperature, which can generate greater radiant heat and provide comfortable heating device. <P>COPYRIGHT: (C)2003,JPO

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 radiant heat and warm air.

[0002]

2. Description of the Related Art As shown in FIG. 4, a conventional heating device of this type has a combustion section 11 for burning fuel, and a combustion section 11 described above.
A radiator 13 that has a heat collecting surface 12 that is heated by high-temperature combustion gas from the above and that generates the collected heat as radiant energy; a blowing means 14 that supplies an air flow; and an air from the blowing means 14 described above. Hot air outlet 15 for mixing the flow with the hot gas from the hot gas generating means and discharging it as hot air
And a hot gas switching means 16 for switching the hot gas from the combustion section 11 to the radiator 13 side or the hot air outlet 15 side, and when the hot gas switching means 16 is switched to the radiator 13 side. The high temperature combustion gas from the combustion section 11 is collected by the heat collecting surface 12, and the heat is generated as radiant energy to perform radiant heating.

[0003]

However, in the above-mentioned conventional structure, when the high temperature gas switching means 15 is switched to the radiant body 13 side, the radiant body 13 is heated to a high temperature to obtain radiant energy. , An outer surface of the radiator 13 which is heated to a high temperature, a control unit for controlling combustion, a cartridge tank for supplying fuel to the combustion unit, a guard for preventing direct contact with the radiator, etc. The temperature of the component parts also rises, and the temperature of the radiator 13 itself needs to be lowered in order to reduce the temperature to a heat resistant temperature or lower, and there is a problem that a large amount of radiant heat, which is the original purpose, cannot be collected.

Further, it is necessary to provide a heat insulating material or the like on the back surface of the radiating body 13 so as not to receive radiant heat from the radiating body 13, or to increase the size of the main body to secure a distance from the radiating body, which is high in cost. It was.

Further, in the above-mentioned conventional structure, the blowing means 27
The temperature detection method was used to detect the deterioration of the performance due to dust adhering, but it is difficult to detect it sensitively, and many temperature detection devices as safety devices are installed around the radiator. It was necessary to do so and the cost was higher.

The present invention has been made in view of the above problems.
By lowering the temperature around the radiator without lowering the temperature of the radiator itself during radiant operation, it is possible to obtain higher radiation characteristics and at the same time provide a compact and safe heating device. is there.

[0007]

In order to solve the above problems, the present invention has a high temperature gas generating means for generating a high temperature gas by using a combustion gas having a combustion section for burning fuel.
A radiator having a heat-collecting surface heated by the high-temperature gas from the high-temperature gas generating means, which generates the collected heat as radiant energy, a blowing means for supplying an air flow, and an air flow from the blowing means. A hot air outlet for mixing with the hot gas from the hot gas generating means and discharging as hot air, and a hot gas switching means for switching the hot gas from the hot gas generating means to the radiator side or the hot air outlet side. And a discharge port located above the device for discharging part or all of the air flow from the blower device to the upper front of the device when the high temperature gas is switched to the radiator side by the high temperature gas switching device. In addition, when the high temperature gas is switched to the radiator side by the high temperature gas switching means, a cooling air passage for flowing a cooling air flow around the radiator is provided.

According to the above invention, since the cooling air passage is provided around the radiator, even if the radiator becomes high temperature when the high temperature gas is switched to the radiator side by the high temperature gas switching means, the temperature around the radiator is high. The temperature rise is suppressed, and the temperature of the parts and the outer surface of the surrounding parts can be reduced. And by doing so, the temperature of the radiator can be set to a high temperature, so that more radiant heat can be obtained and the radiant capacity, which is the basic performance as a radiant heater, can be improved, and it is more compact and prevents the temperature rise of the main body. It is possible to provide a safe and comfortable heating system.

[0009]

A heating apparatus according to a first aspect of the present invention has a high temperature gas generating means for generating a high temperature gas by using the combustion gas having a combustion part for burning fuel, and a high temperature from the high temperature gas generating means. A radiant body that has a heat-collecting surface that is heated by gas and that generates the radiated energy from the collected heat,
An air blowing means for supplying an air flow, a hot air outlet for mixing the air flow from the air blowing means with a hot gas from the hot gas generating means and discharging the hot air, and a hot gas from the hot gas generating means. A high-temperature gas switching means for switching to the radiator side or the hot air outlet side is provided, and when the high-temperature gas is switched to the radiator side by the high-temperature gas switching means, the air flow from the blower means located above the equipment is An outlet for discharging a part or all of the device is provided above the front of the device, and when the high-temperature gas is switched to the radiator side by the high-temperature gas switching means, a cooling air passage for flowing a cooling air flow around the radiator is provided. It is provided as a configuration.

Further, since the cooling air passage is provided around the radiator, even if the radiator becomes a high temperature when the high temperature gas is switched to the radiator side by the high temperature gas switching means, the temperature rise around the radiator is suppressed. As a result, it is possible to reduce the temperature of the components arranged around and the outer surface. And by doing so, it is possible to obtain a larger radiant heat because the temperature of the radiant body can be set to a high temperature, and it is possible to improve the radiant capacity, which is the basic performance as a radiant heater, while being more compact,
It is possible to prevent the temperature of the main body from rising and to provide a safe and comfortable heating device.

Further, in the heating device according to the second aspect of the present invention, the cooling air passage is configured to pass the air flow branched from the air blowing means.

Further, since the cooling air passage uses the air flow branched from the air blowing means, it is not necessary to separately provide an air blowing means for cooling, and a simpler construction is possible and the cost is reduced. Is possible.

The heating device according to a third aspect of the present invention is provided with adjusting means for arbitrarily adjusting the ratio of branching the air flow from the blowing means in the cooling air passage.

The distribution ratio between the indoor circulation air passage and the cooling air passage can be arbitrarily set by providing the cooling air passage with adjusting means for adjusting the ratio at which the air flow from the blowing means is branched. Therefore, the size of the device itself, the air flow rate,
It becomes possible to obtain the maximum radiant heat within the heat-resistant temperature of the parts around the radiator according to the high-temperature gas generation ability.

Further, by detecting and feeding back the temperature rise of the main body due to the decrease of the air flow rate caused by the adhesion of dust to the air blower and the like, the branching ratio can be changed to provide a more durable heater. It will be possible.

The heating device according to a fourth aspect of the present invention includes a cartridge tank that is removably arranged and supplies fuel to the combustion section, and a cooling air passage is provided on the radiator tank side of the radiator tank. .

Even if the radiant body becomes hot when the high-temperature gas switching means switches the hot gas to the radiant side, a cooling air passage is formed between the radiant body and the car ridge tank. Since the temperature rise of the car ridge tank is suppressed and the temperature of the radiant body can be set to a high temperature, a larger radiant heat can be obtained, and a comfortable heating device can be provided and safety is improved.

Further, the heating device according to the fifth aspect is provided with a light source section for irradiating the radiant body, and is provided so as to cool the light source section by the air flow from the cooling air passage.

Even if the radiant body becomes hot when the hot gas is switched to the radiant body side by the hot gas switching means, a cooling air passage is formed between the radiant body and the light source section for irradiating the radiant body. Therefore, the temperature rise of the light source unit that radiates the radiator due to the decrease in air flow caused by dust adhesion to the blower is suppressed, and the temperature of the radiator can be set to a high temperature, making it possible to obtain more radiant heat. A comfortable heating system can be provided.

Further, the heating device according to claim 6 is provided with a temperature detecting means for detecting the ambient temperature of the heating main body, and the temperature detecting means is cooled by the air flow from the cooling air passage.

Further, when the air blowing means has deteriorated in performance due to dust adhesion or the like, the temperature detecting means is provided on the cooling air passage branched from the air blowing means, so that the decrease in the air blowing amount can be detected sensitively. As a result, it is not necessary to install many temperature detectors as a safety device around the radiator, and it is possible to take a longer time until the safety device operates due to a decrease in air flow due to dust, etc. It would be good to provide heating measures.

[0022]

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

(Embodiment 1) FIG. 1 is a sectional view of a heating apparatus according to Embodiment 1 of the present invention during radiant heating operation.

In FIG. 1, reference numeral 21 is a high temperature gas generating means, which is a combustion section for combusting fuel in this embodiment, and a combustion cylinder 22 arranged so as to guide the combustion exhaust gas generated in the combustion section 21 upward. Is covered with.

Reference numeral 23 denotes a radiant body which collects the high temperature combustion exhaust gas flowing through the radiant body heating air passage 24 at its heat collecting surface 25 and generates the collected heat as radiant energy. Has a large number of through holes 26, through which high-temperature combustion exhaust gas from the radiator heating air passage 24 is caused to flow to both sides of the radiator 23, and both sides of the radiator 23 are heat collecting surfaces. It is set to 25.

Reference numeral 27 is a blower for supplying indoor air as an air flow. This air flow is blown by a blower air duct 28 and is switched by an air duct switching means 29. It is switched to the mouth 31 side and flows.

Reference numeral 32 is a cooling air passage arranged around the radiator 23, and when the air passage switching means 29 is switched to the indoor circulation air passage 30 side, the air flow from the blower 27 is changed to the air passage 28. After that, the distribution device 33, which is an adjusting means for distributing the air to the indoor circulation air passage 30 and the cooling air passage 32, can distribute the air at any ratio.

Next, the operation and action will be described. In the above-mentioned configuration, when the air passage switching means 29 switches the air flow from the blower 27 to the warm air outlet 31 side, the warm air heating operation is performed and the blower 27 outputs. The air flow flows under the front surface of the combustion tube 22 and guides the combustion exhaust gas generated in the combustion section 21 to the warm air outlet 31 side, and mixes the air flow from the blower 27 and the combustion exhaust gas generated in the combustion section 21 to increase the temperature. The air is discharged from the hot air outlet 31 to allow warm air heating.

When the air passage switching means 29 switches the air flow from the blower 27 to the indoor circulation air passage 30 side, the radiant heating operation is performed, and the air flow from the blower 27 is distributed to the distribution device 3.
3, the combustion exhaust gas generated in the combustion section 21 does not exert the force of flowing downward, flows upward to the combustion cylinder 22, and flows further upward due to the draft due to the heat, and is guided to the radiator heating air passage 24. You will be able to be.

Then, the heat collecting surface 25 of the radiator is heated to a high temperature by the high temperature combustion exhaust gas generated in the combustion section 21, and the heat collecting surface 25 is heated.
The heat collected in (1) is generated from the radiator 23 as radiant energy, and radiant heating can be performed.

The air sent to the distribution device 33 is also cooled by the distribution device 33 so that the main body cooling air passage 3 is provided around the radiator.
2 and the indoor circulation air passage 30 are distributed at a ratio according to the amount of combustion and the amount of air blown, and circulate in the cooling air passage 32 to reduce the radiant heat from the radiator 23 that becomes high in temperature during the radiation operation. It becomes possible to suppress the temperature rise around the radiator, and the effect thereof makes it possible to reduce the temperature of the components and the outer surface arranged in the periphery. As a result, the temperature of the radiator 23 can be set to a high temperature, so that a larger radiant heat can be obtained, the radiant capacity, which is the basic performance as a radiant heater, can be improved, and it is more compact and the temperature of the main body rises. Therefore, a safe and comfortable heating device can be provided.

Further, since the air flow circulating inside the main body cooling air passage 32 is configured to distribute the air from the blower 27 for supplying the combustion air, it is not necessary to provide a dedicated blowing means and the construction is simple. It is possible to reduce the cost and reduce the cost.

Furthermore, by allowing the distribution ratio of the distribution device 33 to be adjusted arbitrarily, the amount of high-temperature gas generated and the blower 2
It is possible to set an optimum distribution ratio for variable factors such as the amount of air blown when dust adheres to No. 7. For example, the amount of cooling air is optimized by detecting the temperature rise of the main body to detect dust adhesion to the blower and feeding it back to the distribution device 33. As a result, the amount of air circulating inside the cooling air passage 30 can be continuously maintained at the maximum, and a more durable heating device can be provided.

Further, as shown in FIG. 2 which is a cutaway view of the main part from the upper surface of the heating device, since the cooling air passage 32 is arranged on the cartridge tank 34 side of the radiator 23, the high temperature radiator 23 Radiant heat is reduced by the air flow from the cooling air passage 30 to lower the temperature of the car storage tank 34, so that the temperature of the fuel, which is a combustible substance, can be reduced and the safety can be further enhanced.

Further, as shown in FIG. 3 which is a cutaway perspective view of a main part of the radiator side part of the heating device, by providing a cooling air duct 35 on the side part of the radiator 23, the temperature becomes high conventionally and heat is shielded by heat resistant glass or the like. It is possible to install the light source unit 36 so as to irradiate the radiator 23 on the upper portion of the radiator 23 that has a constraint condition such as a configuration, and at the same time, the configuration can be simplified and the cost can be reduced. be able to.

The cooling air passage 3 provided on the side of the radiator 23
By installing the temperature detecting means 37 for detecting the ambient temperature of the heater main body on the above 5, when the air volume from the conventional blower 27 decreases even a little, the temperature suddenly rises and the safety refitting operates. The cooling air passage 35 can reduce the temperature rise, and can minimize the influence of a decrease in the air volume of the blower 27 due to dust or the like adhering to the air blowing portion.

Further, since the air flow passing through the cooling air passage 35 has a structure in which the air flow from the air blower 27 is diverted, it is possible to detect a decrease in the air flow of the air blower 27 sensitively and more accurately. High detection became possible.

Further, in the past, separate safety devices were required at the time of warm air operation and at the time of radiant operation because of different air paths, but by adopting the above configuration, it is possible to detect a decrease in the air volume of the blower 27 during warm air operation. The safety device can be used both during hot air operation and during radiation return, which simplifies the configuration and reduces cost.

In the above embodiment, the air duct distributor 33 has a structure in which the distribution ratio can be changed arbitrarily.
This may be a fixed ratio, and the other parts may have any structure as long as the object of the present invention is achieved.

[0040]

As described above, according to the heating device of the first aspect, since the cooling air passage is provided around the radiator, the high temperature gas switching means radiates the high temperature gas to the radiator side. Even if the temperature of the body becomes high, the temperature rise around the radiator is suppressed, and the temperature of the parts and the outer surface of the surrounding body can be reduced. And the temperature of the radiator can be set to a high temperature, and it is possible to obtain a larger radiant heat and improve the radiant capacity, which is the basic performance as a radiant heater, while being more compact and preventing the temperature rise of the main body. Therefore, it is possible to provide a safe and comfortable heating system.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a first embodiment of the present invention during radiant heating operation with heating installed.

FIG. 2 is a cutaway view of an essential part from the top of the heating device.

FIG. 3 is a cutaway perspective view of a main part of a radiator side portion of the heating device.

FIG. 4 is a sectional view of a conventional heating device.

[Explanation of symbols]

21 Combustion part (high-temperature gas generation means) 23 Radiant 25 Heat collecting surface 27 Blower (Blower means) 29 High temperature gas switching means 30A outlet 31 Hot air outlet 32 cooling air duct 33 Distributor (adjusting means) 34 cartridge tank 36 Light source 37 Temperature detecting means

Claims (6)

[Claims] 1. A high temperature gas generating means for generating a high temperature gas using the combustion gas having a combustion part for burning fuel, and a heat collecting surface heated by the high temperature gas from the high temperature gas generating means. A radiant body that generates the collected heat as radiant energy, a blowing unit that supplies an air flow, and a temperature at which the air flow from the blowing unit is mixed with the high-temperature gas from the high-temperature gas generation unit and is discharged as warm air. The wind outlet
And a hot gas switching means for switching the hot gas from the hot gas generating means to the radiator side or the hot air outlet side, and when the hot gas switching means switches the hot gas to the radiator side, on the upper part of the device Is provided with an outlet for discharging a part or all of the air flow from the blower means to the upper front of the device, and when the high temperature gas switching means switches the high temperature gas to the radiator side, the radiation A heating device that has a cooling air duct that allows a cooling air flow to flow around the body. 2. The heating device according to claim 1, wherein the cooling air passage is configured to pass an air flow branched from the air blowing means. 3. The cooling air passage is provided with adjusting means for arbitrarily adjusting a ratio at which the air flow from the blowing means is branched.
The heating device according to any one of 2 above. 4. A cartridge tank, which is detachably arranged to supply fuel to a combustion portion, and a cooling air passage is provided on the radiator body on the side of the car ridge tank.
The heating device according to the item. 5. The heating device according to claim 1, further comprising a light source unit for radiating a radiant body, the light source unit being provided so as to cool the light source unit with an air flow from a cooling air passage. 6. The heating according to claim 1, further comprising temperature detecting means for detecting an ambient temperature of the heating main body, wherein the temperature detecting means is cooled by an air flow from a cooling air passage. apparatus.