JP2002221365A - Fan-forced heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fan-forced heater, in which only humidification can be regulated, in a fan-forced heater which is arranged, so that humidification can be performed in addition to fan forced heating, by being provided with a humidifying pan inside its body case. SOLUTION: This fan-forced heater is equipped with a blast passage 18, which is formed within a body case 11 and connects an air suction port 15 with a hot air blowout port 14A, a fan 34 for convection which blasts air to this blast passage, a heat exchanger 20 which is arranged within the blast passage, and a combustor 21 which supplies combustion air into this heat exchanger. Then, the blast passage 18 is made, being divided into plural blast passages 18a and 18b for heating and humidification, and the heat exchanger 20 is installed within the blast passage 18a for heating, while a humidifying pan 40 is installed within the blast passage 18 for humidification, and moreover this is equipped with a damper 31, which regulates the quantity of blast to the blast passage 18b for humidification provided with this humidifying pan 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air heater such as an FF oil hot air heater or an FF gas hot air heater having a humidifying function.

[0002]

2. Description of the Related Art Conventionally, as a warm air heater 1 of this type,
As shown in FIG. 4, a hot air outlet 3 is provided at a lower front portion of the main body case 2 and an air suction port 4 is provided at an upper rear portion of the main body case 2. A convection fan 6 and a heat exchange unit 7 are provided in the air passage 5, and the convection fan 6 and the heat exchange unit 7
A humidifying dish 8 is known to be located on the leeward side of the heat exchange section 7 of the air flow path 5 in which the humidifying section 8 is arranged. Note that a combustion section (not shown) is provided in the main body case 2, and the combustion hot air is supplied from the combustion section into the heat exchange section 7.

[0003] The humidifying dish 8 is removably accommodated in a dish receiving body 9 provided at a lower portion in the main body case 2 and stores humidifying water evaporated by warm air. Room air is sucked into the main body case 2 from the air suction port 4, and the air is blown toward the heat exchange unit 7 by the convection fan 6, exchanges heat with the heat exchange unit 7 to become hot air, and the hot air outlet 3 is discharged toward the front of the main body case 2 to heat the room. At this time, the hot air hits the humidifying dish 8 provided on the downstream side of the heat exchanging section 7, and the humidifying water stored in the humidifying dish 8 is heated and evaporated, discharged from the hot air outlet 3 and humidified inside the room. Is done.

[0004]

In the conventional hot air heater 1 as described above, the amount of humidification during the heating operation is substantially proportional to the amount of air from the convection fan 6. When the heating capacity is controlled, the air volume of the convection fan 6 increases or decreases in accordance with the increase or decrease in the heating capacity.
For this reason, the amount of humidification is influenced by the increase and decrease of the heating capacity, and it has not been possible to adjust only the amount of humidification alone.

The present invention has been made to solve the above-mentioned problems. In a hot air heater in which a humidifying dish is provided in a main body case to perform humidification in addition to hot air heating, only a humidifying amount is required. It is intended to provide a hot air heater that can be adjusted independently.

[0006]

According to one aspect of the present invention, there is provided a body case having an air inlet and a hot air outlet, and the air inlet formed in the body case. And a convection fan that blows air into the air flow passage, a heat exchange unit disposed in the air flow passage, and a combustion unit that supplies combustion hot air into the heat exchange unit. The air flow path is divided into a plurality of air flow paths for heating and humidification and formed, and a heat exchanger section is provided in the air flow path for heating, while the air flow path for humidification is provided. And a damper for adjusting the amount of air blown to the humidifying air flow path provided with the humidifying dish.

According to a second aspect of the present invention, in the hot air heater according to the first aspect, the damper is capable of adjusting the angle so that the amount of air blown to the heating air passage and the humidification air passage can be distributed. It is characterized by having done.

According to a third aspect of the present invention, in the hot air heater according to the first or second aspect, the heating air passage and the humidifying air passage are separated by a partition plate having thermal conductivity. It is characterized by the following.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Description will be given based on the drawing of FIG. FIG. 1 is an external perspective view of an oil hot air heater in one embodiment of the present invention, and FIG.
FIG. 3 is a side sectional view, and FIG. 3 is a partially cutaway front view of the oil hot air heater.

Referring to FIG. 1, an oil warm air heater (hereinafter referred to as a heater) 10 includes a box-shaped main body case 11,
The main body case 11 includes a case main body 10A and a front panel 12.
The front surface of the case body 10A is covered with a front panel 12 which is detachably attached, and a lower portion of the front panel 12 has a horizontally long hot air blowing grill (a hot grill) having a plurality of horizontal guide blades 13. The air outlets 14A) 14 face. An operation unit (not shown) and a display unit (not shown) are provided on a top surface of the main body case 11.
0, an operation switch for operating 0, a set temperature switch for setting a desired room temperature, a humidification operation switch for setting a humidification mode and a humidification amount, and the like are provided.
The display unit is provided with a screen for displaying the operation mode of the heater, the set temperature, and the like.

2 and 3, the case body 10A
An air inlet 15 having a detachable filter 15a is provided at the upper part of the back plate. 17 is a back guard attached to the rear of the case body 10A,
The back guard 17 includes a top plate and left and right side plates, and covers the upper part of the rear space between the case main body 10A and the room wall and both left and right sides.

In the case body 10A, there is formed an air passage 18 extending from the air inlet 15 to the hot air outlet 14A of the hot air outlet grill 14.

A blower for hot air 32 is provided at an upper portion in the blower flow path 18 so as to face the air suction port 15. The blower for hot air 32 includes a motor 33 and a plurality of sirocco fans 34 (convection fan). And a plurality of fan cases 35, and blows the room air sucked into the case body 10A from the air suction port 15 toward the downstream side of the air flow path 18. I have.

As shown in FIG. 2, a partition plate 30 for dividing the blower passage 18 into two passages is provided downstream of the blower passage 18 from the blower 32 for hot air. The plate 30 is made of a metal plate having excellent thermal conductivity, and divides a vertical partition portion 30a arranged in parallel in front of a rear plate 11a of the main body case 11 and a hot air outlet 14A into upper and lower portions. And a horizontal partition part 30b horizontally disposed behind the hot air outlet grill 14. The lower end of the vertical partition 30a and the rear end of the horizontal partition 30b are connected to each other.

The heating air flow passage 18a is formed in front of the partition vertical plate portion 30a and above the partition horizontal plate portion 30b, while behind the partition vertical plate portion 30a and in the partition horizontal plate portion. A humidifying air flow path 18b is formed below 30b.

As shown in FIG. 3, a combustion tube 22 connected to a petroleum burner 21 (combustion portion) for vaporizing and burning petroleum fuel such as kerosene, And a heat exchange section 20 having a plurality of heat exchange pipes 24 and an exhaust collecting box 25, and a part of an exhaust pipe 26 connected to the exhaust collecting box 25.

An oil leveler (not shown) for storing petroleum fuel sent from an oil supply pipe (not shown) is accommodated in a lower portion of one side of the case main body 10A, and the fuel in the oil leveler is The oil is supplied to the oil burner 21 via a fuel pump (not shown) and a fuel supply pipe 27. 28
Is an air supply blower for supplying combustion air to the oil burner 21. The air supply blower 28 has an air supply pipe 29 at one end.
Is connected, and the other end is connected to the oil burner 21.

A damper 31 for opening and closing the middle of the humidifying air passage 18b is provided in the humidifying air passage 18b. As shown in FIG. A fulcrum shaft 39 is provided at a lower rear end portion of the lower shaft, and a damper driving motor (not shown) such as a stepping motor is connected to and attached to the fulcrum shaft 39. Is adjustable in angle. The damper driving motor is electrically connected to a control unit and an operation unit (not shown), and the humidifying operation switch of the operation unit is operated to control the damper 3 via the control unit.
An angle adjustment of 1 is made.

When the damper 31 is closed and closed, the air supply from the sirocco fan 34 is shut off. On the other hand, when the damper 31 is opened and opened, the humidification air flow path 18b Is blown.

When the damper 31 is open, the amount of air flowing through the humidifying air passage 18b is distributed to the heating air passage 18a and the humidifying air passage 18b according to the opening / closing angle of the damper 31. By adjusting the opening / closing angle of the damper 31 to be small, the amount of air distributed to the humidifying air flow passage 18b is reduced.

A dish receiver 36 is provided in the humidification ventilation passage 18b, that is, in the lower portion of the case body 10A.
A humidifying dish 40 for storing humidifying water is detachably accommodated in the dish receiving body 36. The humidifying dish 40 has an insertion / removal opening 37 formed by removing the hot air blowing grill 14. It can be taken out of the case body 10A through the case.

On the lower surface of the bottom plate 43 of the dish receiver 36,
A temperature sensor 44 for detecting the temperature of the humidifying dish 40 is attached, and when the temperature sensor 44 detects a temperature equal to or higher than a predetermined temperature, it is determined that the humidifying water in the humidifying dish 40 is in a drought state. The information is displayed on a display unit (drought notification means) provided on the top surface of the case 11.

The dish receiver 36 has a dish shape and has a drain 41 on the right side, and a return pipe 42 is connected to the drain 41. The humidifying plate 4 is placed on the plate receiver 36.
0 is installed, and the water overflowing from the humidifying
Exhausted through 2.

The humidifying dish 40 is provided with a vapor-permeable and water-absorbing evaporation promoting body 38 made of ceramic fiber as a base material. This evaporation promoting body 38
Is the humidifying plate 40 in the humidifying operation mode of the heater 10.
Is kept in a moist state by sucking up the water, and when the wind comes into contact with the evaporation promoting body 38, the water is vaporized, and the room is humidified by the vaporized water.

As shown in FIG. 3, a water supply device 45 is provided on the right side of the dish receiver 36. The water supply device 45 includes a detachable cartridge type water supply tank 47, a tank receiver 46 for receiving humidified water from the water supply tank 47, an electric water supply pump 48 for pumping humidified water in the tank receiver 46, This electric water pump 4
8 and a water supply pipe 51 connected to the water supply pipe 8.

The tank receiver 46 is provided on the case body 10.
A is detachably fixed in A, and a substantially constant amount of water is maintained therein, and a float switch (not shown) for detecting a water level is provided in the tank receiver 46. I have.

The other end of the return pipe 42 attached to the dish receiver 36 faces the tank receiver 46, and the return pipe 42 receives excess water overflowing from the humidifying dish 40. It is a return channel for returning from 36 to the tank receiver 46. The return pipe 42 is connected to the dish receiver 36.
Tank receiving body 46 than the drain port 41 as the side inlet part
The surplus water is returned to the tank receiver 46 side by a head drop with the side outlet part at the lower position.

The water supply tank 47 is configured so as to be freely inserted into and removed from the main body case 11 through a tank access port 49 provided on the top surface of the main body case, and the tank access port 49 is closed by an opening / closing lid 49A. . Also,
The water supply tank 47 is mounted on the tank receiver 46 in an inverted manner so as to be detachable, and has a cap with a valve at the bottom,
Water for humidification is supplied to the tank receiver 46.

The electric water supply pump 48 has a suction port located below the water surface in the tank receiver 46, a water supply pipe 51 connected to the discharge port, and a discharge port 51A at the tip end of the water supply pipe 51 immediately above the humidifying plate 40. It is facing. The electric water supply pump 48 is constituted by a magnet pump or an electromagnetic pump, operates in the humidification operation mode, and operates the sirocco fan 34 in the humidification operation mode.
The pumping amount is changed so as to increase or decrease according to the increase or decrease of the rotation speed (the rotation speed of the motor 33), but the pumping amount may be substantially constant.

In the above-described configuration, when the operation of the heater 10 is started, the combustion air is supplied to the oil burner 21 from the air supply blower 28 and the fuel supply pipe 27 is operated by the operation of the fuel pump (not shown). And the oil burner 21 starts burning. By the start of the combustion of the oil burner 21, the combustion gas passes through the heat exchange section 20 and is discharged from the exhaust pipe 26 to the outside.

Here, in the heating operation mode in which the heater 10 performs the heating-only operation, when the temperature of the heat exchange unit 20 becomes higher than a predetermined temperature, the hot air blower 32 is driven and is purified by the filter 15a. The room air is sucked into the main body case 11 from the air suction port 15, and this air is accelerated by the sirocco fan 34 of the hot air blower 32 and is blown toward the heating air flow passage 18 a, and Heat is exchanged to generate warm air, which is discharged from the upper portion of the warm air outlet 14a toward the front of the main body case 11 (as indicated by the solid arrow in FIG. 2) to heat the room.

In the humidifying operation mode in which the heater 10 performs both the heating operation and the humidifying operation, the damper 31 is opened to open the humidifying air flow passage 18b, and the air from the sirocco fan 34 is supplied to the heating humidifier. The air is diverted to both the air flow channel 18a and the humidification air flow channel 18b.

At this time, the partition plate 30 is
Humidified air flow path 18b
The blast from the sirocco fan 34, which is diverted into the inside, comes into contact with the warmed partition plate 30 and the temperature thereof rises. The humidifying dish 40 contacts the accelerator 38
The humidification water stored in the evaporator evaporates,
Humidification is performed by vaporizing and evaporating the humidified water absorbed in 8. Then, the humidified blast in the humidification ventilation passage 18b is discharged from the lower portion of the warm air outlet 14a (as indicated by a dotted arrow in FIG. 2) to humidify the room.

Here, the amount of humidification in the humidifying dish 40 and the evaporation promoting body 38 depends on the humidification water in the humidifying dish 40 and the evaporation promoting body 38.
Because it increases almost in proportion to the amount of air that comes in contact with
When the humidification amount is set to a large value by a humidification amount setting means such as a humidification operation switch (not shown), the opening angle of the damper 31 is greatly adjusted.
b, the amount of air passing through the damper 3 increases when the amount of humidification is set small by the humidification amount setting means.
Since the opening angle of 1 is adjusted to be small, the amount of air passing through the humidification ventilation passage 18b is reduced.

As described above, the heater 1 according to the present embodiment is
Reference numeral 0 denotes a ventilation channel 18 that connects the air suction port 15 and the hot air outlet 14A in the main body case 11, and the ventilation channel 18 is divided by a partition plate 30 into a heating ventilation channel 18a and a humidification ventilation channel. And a humidifying plate 40 provided with an evaporation promoting body 38 in the humidifying air passage 18b. Humidifying air flow path 1
8b, a damper 30 for opening and closing the humidifying air passage 18b to adjust the amount of air sent into the humidifying air passage 18b is provided.
0 can be used as a heating operation mode dedicated to heating, and a humidification operation mode in which the heating operation and the humidification operation are performed in combination.

Further, by mounting the damper 30 so that the angle can be adjusted, the opening and closing angle of the damper 30 can be adjusted by keeping the air volume of the sirocco fan 34 constant.
Since the air volume distributed between the heating ventilation channel 18a and the humidification ventilation channel 18a is adjusted, the humidification amount can be easily controlled.

Further, by increasing the opening angle of the damper 30 and increasing the air volume of the sirocco fan 34, only the air volume for humidification can be increased with the air volume for heating constant, and only the air volume for humidification can be increased. It can be controlled independently.

Although the present invention has been described based on the embodiment, the present invention is not limited to this.

In this embodiment, a heater using an oil burner 21 has been described, but a heater using a gas burner may be used.

In the present embodiment, the damper 31 is provided in the middle of the humidifying air passage 18b. However, the damper 31 may be provided at the inlet of the humidifying air passage 18b. It is not limited at all.

[0041]

As described above, the warm air heater of the present invention has a main body case having an air inlet and a hot air outlet,
A blower passage formed in the main body case and connecting the air inlet and the hot air outlet, a convection fan for blowing the blower passage, and a heat exchange unit disposed in the blower passage; And a combustion unit for supplying combustion hot air in the heat exchange unit, wherein the air flow passage is divided into a plurality of air flow passages for heating and humidification, and a heat exchanger unit is provided in the air flow passage for heating. On the other hand, a humidifying dish is provided in the humidifying air flow path, and a damper for adjusting the amount of air blown to the humidifying air flow path provided with the humidifying dish is provided. Driving,
Improves comfort during heating, such as enabling simultaneous operation of hot-air heating operation and humidification operation, as well as adjusting humidification capacity alone without changing hot-air heating capacity it can.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a petroleum hot air heater in one embodiment of the present invention.

FIG. 2 is a side sectional view of an oil hot air heater.

FIG. 3 is a partially cutaway front view of the oil hot air heater.

FIG. 4 is a side sectional view of a conventional oil hot air heater.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 oil hot air heater 11 main body case 12 front panel 14 hot air outlet grill 14A hot air outlet 15 air inlet 17 back guard 18 air passage 18a heating air passage 18b humidification air passage 20 heat exchange unit 21 oil Burner (combustion unit) 22 Combustion cylinder 23 Connection box 24 Heat exchange pipe 30 Partition plate 30a Partition vertical plate unit 30b Partition horizontal plate unit 31 Damper 34 Sirocco fan (convection fan) 36 Plate receiver 37 Opening / closing opening (opening) Part) 38 evaporation promoting body 39 fulcrum shaft 40 humidifying dish 51 water supply pipe

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takeshi Kashiwase 1 Otsukicho, Ashikaga, Tochigi Sanyo Electric Air Conditioning Co., Ltd. F term (reference) in the company 3L055 AA04 DA05 3L072 AA05 AC01 AD19 AG05

Claims (3)

[Claims] 1. A main body case having an air inlet and a hot air outlet, an air flow passage formed in the main body case and connecting the air inlet and the hot air outlet, and a convection air blowing into the air flow passage. A fan, a heat exchange unit disposed in the air flow passage, and a combustion unit that supplies combustion hot air into the heat exchange unit, wherein the air flow passage is provided to a plurality of air flow passages for heating and humidification. Formed in a divided manner, while providing a heat exchanger section in the heating air flow path, providing a humidifying dish in the humidification air flow path, and
A warm air heater comprising a damper for adjusting an amount of air blown to a humidifying air flow passage provided with the humidifying dish. 2. The hot air heater according to claim 1, wherein the damper is capable of adjusting an angle thereof so as to be able to distribute an amount of air blown to a heating air passage and a humidifying air passage. 3. The hot air heater according to claim 1, wherein the heating air passage and the humidifying air passage are separated by a partition plate having thermal conductivity.