JPH11118255A - Hot air heater with air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent temperature rise of hot air due to increase of pressure loss even if a fine mesh large volume air cleaning filter is fixed. SOLUTION: An air cleaning wind path 17 having a port 12 for sucking the cleaning air made at upper front part of a heater and a port 14 for blowing the cleaning air above the heater is fixed an air cleaning filter 13 for removing dust and odor and an air cleaning fan 15 so that the wind path 17 is separated completely from a wind path 11 for blowing hot air. According to the structure, temperature rise of hot air due to increase of pressure loss can be eliminated even if a fine mesh large volume air cleaning filter is fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air heating device provided with an air purifier.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional hot air heating device with an air purifier. In the figure, the gas supplied by a burner 1 is burned. There is a combustion chamber 2 for mixing exhaust gas generated by combustion with air. Below the burner 1, a convection fan 4 for sending out the hot air 3 is provided. A hot air outlet 5 is mounted in front of the convection fan 4.

A convection filter 8 for taking in convection air 7 is provided on the rear surface of the case 6. An air purifying filter 9 for removing dust and smell is attached inside the filter. The air purifying filter 9 comprises a deodorizing section made of activated carbon or the like that adsorbs odors, and a cotton-like or granular charging section that removes dust particles.

Next, the operation will be described. High-temperature combustion exhaust gas 10 generated by burning gas with burner 1
Then, the convection air 7a that has passed through the convection filter 8 and the air purification filter 9 in the combustion air passage 11 of the combustion chamber 2 is mixed. The mixed hot air is sent out by the convection fan 4 as the hot air 3 from the hot air outlet 5 at the lower front, and is sent out.
Perform heating.

[0005] Tobacco particles and dust contained in the air adhere to the cotton-like or granular charging portion when passing through the air cleaning filter 9. The finer the particles, the finer the cotton-like charged portions are, and the longer the distance they pass, the more they adhere. The odor is deodorized by adsorbing to a deodorizing section composed of activated carbon or the like.

[0006]

In order to improve the dust collection rate and the odor removal rate, the size of the filter 9 for air cleaning is made finer, and the area of the filter 9 is made thicker and more in contact with air. It is necessary to increase. However, in the configuration of the air passage 11 as described above, if the air cleaning filter 9 is mounted as described above, the resistance is large, the pressure loss increases, the convection air decreases, and the temperature of the hot air increases. Therefore, it is not possible to attach a fine filter for air purification having high dust collection performance, and the dust collection performance is low, so that dust and smell cannot be quickly removed.

Further, in order to lower the temperature of the hot air, it is necessary to increase the rotation speed of the convection fan 4, which increases noise.

Further, during the heating operation, the convection fan 4
As a result, warm air is blown out from one of the hot air outlets 5 to heat the room, so that the room temperature becomes higher near the ceiling, and the room temperature is hardly uniform.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an air purifying unit for heating a hot air generated by operating a convection fan and burning the air to heat the air. The air purifier is configured to include an air fan, an air purifying filter, and an outlet for blowing clean air upward.

According to the above invention, since the air purifying section and the hot air heating section are completely separated from each other, the air purifying filter having a fine surface area and a large surface area with a high dust collection efficiency for sufficiently removing dust and smell is attached. This improves dust collection efficiency and odor removal rate. Therefore, smell and dust can be quickly removed.

In addition, by operating the air purifying fan provided at the top during the heating operation, it is possible to stir the high temperature air near the ceiling and to make the temperature of the indoor air more uniform. It is.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a burner for burning gas, a combustion chamber for mixing exhaust gas generated by combustion with air taken in from the outside, and a convection for sending warm air of a pre-blower to the lower part of the apparatus. A hot air heating section consisting of a fan, a mesh-like convection filter that takes in combustion air from the rear of the appliance, an air purifying fan that takes in and sends out outside air, and a suction side of the air purifying fan that faces the front of the appliance It consisted of a suction port provided at the top, an air cleaning filter for removing dust and odor, and an outlet provided on the upper surface of the appliance and blowing clean air upward on the outlet side of the air cleaning fan. An air purifier is provided.

Since the air purifying section is provided at the upper portion, the high-temperature air near the ceiling can be agitated by operating the air purifying fan during the heating operation to make the room temperature more uniform.

Further, by completely separating the warm air heating section and the air purifying section, an air purifying filter having high dust collection efficiency and odor removal rate can be mounted. Therefore, smell and dust can be quickly removed.

Further, the air purifying section and the hot air heating section can be housed in a single device only by increasing the height without increasing the depth, and the apparatus can be made compact. Furthermore, since the air inlet for cleaning air is provided in the upper front part of the appliance, the smell and dust in the center of the room can be removed, which is efficient.

According to the second aspect of the present invention, a temperature detection sensor is attached near the air cleaning inlet, and is independent of the combustion control thermistor of the hot air heater, and an object is placed in front of the hot air outlet. In this case, the combustion control device stops the combustion or forcibly weakens the combustion before the resin parts constituting the air purifier reach the deformation temperature.

[0017]

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

(Embodiment 1) FIG. 1 is a sectional view of a gas hot air heating apparatus with an air purifier according to a first embodiment of the present invention, and FIG. It is a state diagram of the flow of air when the device is operated indoors.

In FIG. 1, the hot air heating section is the same as the conventional example, and the description is omitted. Reference numeral 12 denotes a suction port for cleaning air, which is located at the upper front of the device. Reference numeral 13 denotes an air purifying filter for removing dust and odor. The air purifying filter 13 includes a deodorizing section made of activated carbon or the like that absorbs odors, and a cotton-like or granular charging section that removes dust particles. Attached inside. Reference numeral 14 denotes an air purifying outlet, which is located at an upper part of the apparatus. An air purifying fan 15 is mounted inside the air purifying air passage 17.

Next, the operation will be described. The rotation of the air cleaning fan 15 causes the air cleaning air 1 to rotate.
6a is sucked through the air purifying suction port 12, dust and odor are removed by the air purifying filter 13, and clean air 16b is blown out from the air purifying outlet 14.

Since it is completely independent of the warm air heating section (combustion chamber 2), a fine air filter 13 with a large surface area for removing dust and odor can be attached, so that dust collection efficiency and odor removal can be achieved. The rate is improved, and dust and smell can be removed quickly. Also, during the heating operation, the mixed warm air is sent out as warm air 3 from the warm air outlet 5 at the lower front surface by the convection fan 4 to perform heating. The hot air 3 is blown out in front of the device, but the hot air rises to a higher position in the room because the temperature is high when the wind speed stops.

In FIG. 2, A is a zone of a stored heat temperate zone. With the configuration in which the air purifying section S is placed on the top of the device, the distance from the air purifying outlet 14 to the ceiling is the shortest, the amount of clean air reaching the zone B is increased, and the stirring action can be activated. , B zone can be accelerated.

First, agitation occurs in the B zone, and at the same time, horizontal convection agitation occurs between A and B. By agitating and mixing the heat stored warm zone A zone and the already cooled B zone, the vicinity of the ceiling is obtained. Zone C becomes a comfortable temperate zone due to the cooling neutralizing action of the hot temperate zone, so that extra heat loss from the ceiling surface can be reduced, and the discomfort disappears even when the head of the human body enters.

In addition, since the cleaning air flows along the bottom surface 17a of the air-cleaning air passage 17 heated by the hot air of the heating operation, the bottom surface 17a can be cooled and the air-cleaning air passage 17 adjacent to the bottom surface 17a can be cooled. Each member can be prevented from being locally thermally deformed.

Further, the air purifying section S and the hot air heating section can be housed in one device only by increasing the height without increasing the depth, and the apparatus can be made compact. Furthermore, since the air inlet 12 for cleaning air is provided in the upper front part of the appliance, the smell and dust in the center of the room can be removed, and the efficiency is high.

(Embodiment 2) In Embodiment 2 of FIG. 3, the hot air heating section is the same as the conventional example, and the description is omitted.

Reference numeral 18 denotes a temperature detection sensor which is attached to the vicinity of the air cleaning inlet 12 independently of the combustion control thermistor of the warm air heater. Reference numeral 19 denotes a combustion control device, which is connected to the temperature detection sensor 18.

When an object is placed in front of the hot air outlet 5, the hot air 3 rises and the temperature near the air cleaning inlet 12 rises. The temperature control sensor 19 detects the predetermined temperature that has risen, and the combustion control device 19 stops or forcibly weakens the combustion before the resin component constituting the air cleaning section S reaches the deformation temperature.

[0029]

As described above, according to the present invention, an air purifying section is provided above a warm air heating section, and the clean air is blown upward from an air outlet thereof so that the hot air generated by combustion is cooled by a convection fan. When the air is sent to the front of the equipment, the air-purifying fan is operated to agitate the high-temperature air near the ceiling with the clean air, making the room temperature more uniform and realizing comfortable heating. Can be.

Further, since the hot air heating unit and the air purifying unit can be completely independent, a high-performance air purifying filter can be installed, and the dust collecting performance and the odor removing performance are improved, and Can remove smell and dust.

Further, a temperature detection sensor is attached near the air purifying suction port to make it independent of the combustion control thermistor of the hot air heater, and when an object is placed in front of the hot air outlet, the air purifier is installed. Before the constituent resin parts reach the deformation temperature, the combustion can be stopped or forcedly made weak.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a hot air heating device with an air purifier according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a state of air flow when the device is operated indoors.

FIG. 3 is a cross-sectional view of a hot air heating device with an air purifier according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional view of a conventional hot air heating device with an air purifier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Burner 2 Combustion chamber 4 Convection fan 8 Convection filter 12 Air cleaning inlet 13 Air cleaning filter 14 Air cleaning outlet 15 Air cleaning fan 18 Temperature detection sensor 19 Combustion control device

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tomiji Suzuki 1006 Kazuma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (2)

[Claims] 1. A burner for burning gas, a combustion chamber for mixing combustion gas and air taken in from outside, a convection fan for sending warm air of a pre-blow to a lower part of the appliance, and a combustion air from a rear surface of the appliance. An air purifying fan that has a hot air heating unit composed of a mesh-like convection filter that takes in air and takes in and sends out outside air, and an air purifying suction provided on the front side of the appliance on the suction side of the air purifying fan An air purifying filter comprising a mouth, an air purifying filter for removing dust and odor, and a clean air outlet provided on the upper surface of the appliance at the outlet side of the air purifying fan. Hot air heater with air purifier installed at the top. 2. A temperature detection sensor is provided near the air cleaning suction port, and is independent of a combustion control thermistor of the hot air heater. When the temperature detection sensor detects a predetermined temperature, combustion is stopped or forcedly performed. The warm air heating device with an air purifier according to claim 1, further comprising a combustion control device for weakly burning the air.