JP2001349615A - Warm-air furnace of unvented-type combustion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a warm-air furnace of unvented-type combustion, which is made compact in size, and has no problem of limited installation place in its application. SOLUTION: The space in the main body 1 is halved in the front and rear direction by a partition 9. A convection fan 11, combustion equipment 6, and a combustion fan 18 are vertically placed in a front space 10A, and a cartridge tank 8 is placed in a rear space 10B. The fan 11 is constituted as Sirocco fan, an inlet 104 of the fan is directed to the rear of the main body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an open combustion type hot air heater such as an oil fan heater.

[0002]

2. Description of the Related Art An open-combustion type hot air heater of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 7-146010.
Generally, a cartridge tank is provided on the side of the combustor, and a convection fan is provided on the rear surface of the main body.

FIG. 5 is a cross-sectional view of a conventional general open combustion type hot air heater disclosed in Japanese Patent Application Laid-Open No. 7-146010.
FIG. 6 is a sectional view taken along the line II. As shown in FIG. 5 and FIG. 6, as a conventional general configuration, an indoor air intake 2 is provided on the rear surface side of the main body 1 and a propeller fan is provided facing the indoor air intake 2 as a convection fan. 3
Is provided on a rear surface of the main body 1 and a hot air outlet 4 is provided on a front surface of the main body 1.
A combustor 6 is provided in a lower part of the air passage 5 that leads to the combustion chamber.
A combustion cylinder 7 is provided at an upper portion of the combustor 6, and a combustion gas (indicated by a broken line arrow) generated by the combustion of the combustor 6 is discharged from the upper end opening 7 a of the combustion cylinder 7 into the air passage 5. The propeller fan 3 mixes the air with the air flow (indicated by solid arrows) introduced from the indoor air intake 2 and discharges the air from the warm air outlet 4 into the room. The cartridge tank 8 containing the liquid fuel has a side space 1 partitioned by a partition plate 9 on the side of the combustor 6 in the main body 1.
It is configured so as to be arranged within 0C.

[0004]

In the conventional open combustion type hot air heater described above, since the propeller fan 3 and the indoor air intake 2 are arranged on the rear surface of the main body 1, the main body 1 is not used. It was necessary to secure a certain amount of extra space behind the device, and the main unit 1 could not be used close to the wall. In addition, since the cartridge tank 8 is disposed in the main body 1 on the side of the combustor 6, the width of the main body 1 is increased and the horizontal installation space is required to be large, and the installation location of the main body 1 is restricted. There was a problem that.

An object of the present invention is to solve the above-mentioned conventional problems, and to provide an open-combustion hot-air heater that can be made compact and that is not restricted by the installation location of the main body.

[0006]

According to the present invention, there is provided an open combustion type hot air heater having a main body having an indoor air inlet and a hot air outlet, and connecting the indoor air inlet and the hot air outlet within the main body. An air passage, a convection fan and a combustor disposed in the air passage, wherein the combustion gas of the combustor is mixed with the airflow from the convection fan and discharged from the hot air outlet. In the open combustion type hot air heater, the space in the main body is bisected in the front-rear direction by a partition plate, and a convection fan, a combustor, and a combustion fan are vertically arranged in tandem in a front space thereof, and a rear space is formed. The cartridge tank is arranged inside.

Further, in the open combustion type hot air heater according to the present invention, the convection fan is constituted by a sirocco fan.

Further, in the open combustion type warm air heater according to the present invention, the convection fan is constituted by a sirocco fan, and the suction port of the sirocco fan is arranged toward the rear side of the main body.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, an open combustion type hot air heater of the present invention will be described with reference to the drawings. 1 to 4 are cross-sectional views of an open combustion type hot air heater according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. FIG. 4 is a sectional view of FIG.
FIG. 5 is a sectional view taken along line CC of FIG.

1 to 4, reference numeral 1 denotes a main body, 2 denotes an indoor air inlet 2 provided on both side surfaces of the main body 1, 4 denotes a warm air outlet provided on a front surface of the main body 1, and 5 denotes the main body 1. An air passage connecting the indoor air inlet 2 and the hot air outlet 4
Is a combustor for burning liquid fuel, the upper part of which is located in the air passage 5. Reference numeral 11 denotes a convection fan constituted by a sirocco fan provided in an upper portion of the inside of the main body 1. The convection fan 11 comprises a driving motor 12, a fan 13, a fan casing 16 having a suction port 14 and a discharge port 15. ing. Reference numeral 17 denotes a combustor cover that covers the lower periphery of the combustor 6. Air required for combustion is supplied from a combustion fan 18 through a combustion air intake hole 17 a provided on the bottom surface of the combustor cover 17. You. The combustion fan 18 includes a fan cover 19 and a fan 2.
0, a drive motor 21, and is configured to take in combustion air from a combustion air intake (not shown) provided at a lower portion of the side surface of the main body 1. 7 is a combustor 6
The combustion tube surrounds the periphery of the flame opening 7a and the upper part thereof. A lid is provided on the upper end opening 7a of the combustion cylinder 7 so that the airflow from the convection fan 11 does not directly hit the combustor 6. The plate 7b is integrally attached. Reference numeral 8 denotes a cartridge tank containing liquid fuel, and reference numeral 9 denotes a partition plate that divides the inner space of the main body 1 in the front-rear direction to form a front space 10A and a rear space 10B. The convection fan 11, the combustor 6, and the combustion fan 15 are vertically arranged in the front space 10A in the main body 1 partitioned by the partition plate 9, and the cartridge tank 8 is located in the rear space 10B. Are located in Reference numeral 22 denotes a fuel receiving tray that receives supply of fuel from the cartridge tank 8 and is provided at the bottom of the main body 1.

Next, the operation of the open combustion type hot air heater having the above configuration will be described. When the combustor 6 is heated to a temperature at which the liquid fuel vaporizes, the fuel in the fuel pan 22 is supplied to the combustor 6 by an electromagnetic pump or the like (not shown). The operation of the combustion fan 18 causes the combustion air necessary for combustion to be supplied to the combustion air intake hole 17 of the combustor cover 17.
The fuel is sent to the combustor 6 via a to perform combustion. The combustion gas (indicated by the dashed arrow) generated by the combustion of the combustor 6 is
And is discharged into the air passage 5 from the upper end opening 7a. On the other hand, the operation of the convection fan 11 causes
The indoor air is taken into the main body 1 from the indoor air intake ports 2 provided on both side surfaces of the fan casing 1 and becomes an air flow as shown by a solid line arrow in FIG.
After entering the inlet 6 through the suction port 14 and blowing out from the discharge port 15, it mixes with the combustion gas discharged from the upper end opening 7 a of the combustion cylinder 7 to form hot air, and the indoor air flows through the hot air outlet 4 on the front surface of the main body 1. Is released to heat the room.

Here, in the open combustion type hot air heater according to the first embodiment, as shown in FIG. 1, the space inside the main body 1 is divided into two by a partition plate 9 in the front-rear direction, and a front space 10A is formed. The convection fan 11, the combustor 6, and the combustion fan 15 are vertically arranged in tandem, and the cartridge tank 8 is arranged in the rear space 10 </ b> B, so that the lateral width of the main body 1 is significantly reduced. Fan 11 and combustor 6
And the combustion fan 15 are arranged vertically in the front space 10A of the main body 1, so that the cartridge tank 8
Even if is disposed in the rear space 10B of the main body 1, the depth dimension of the main body 1 does not become too long, and the main body 1 can be made compact as a whole. Since the convection fan 3 is not provided at least on the rear surface of the main body 1 as in the related art, the rear surface of the main body 1 can be used by being fitted to a wall, and the installation location of the main body 1 is not restricted. The installation location can be freely selected. Further, since the convection fan 11 is constituted by a sirocco fan, the depth dimension of the main body 1 can be set shorter in the air passage 5 in the main body 1 than in the case of a propeller fan, and Since the direction of the suction port 14 of the fan casing 16 can be freely selected, the arrangement of the convection fan 11 is not so limited. Further, since the suction port 14 of the fan casing 16 is disposed horizontally long toward the rear side of the main body 1, the suction airflow of the convection fan 11 circulates rearward in the main body 1 to move the cartridge tank 8. Forced cooling can be performed, and a rise in the temperature of the cartridge tank 8 can be suppressed.

[0013]

As described above, in the open combustion type hot air heater according to the present invention, the combustion gas of the combustor is mixed with the airflow from the convection fan and discharged from the hot air outlet. In the open combustion type hot air heater configured as described above, the space in the main body is bisected in the front-rear direction by a partition plate, a cartridge tank is arranged in the rear space, and a convection fan, a combustor, and a combustion chamber are arranged in the front space. Since the fans are arranged in the vertical direction, the width of the main body can be made smaller by the width of the cartridge tank than that of the conventional configuration, and the effect of reducing the size of the main body as a whole can be obtained. In addition, since there is no need to provide a convection fan or indoor air intake on the rear surface of the main unit as in the past, it is also possible to use the rear surface of the main unit exactly on the wall. You will not be affected by this, and you can freely select the installation location.

Further, by constituting the convection fan with a sirocco fan, it is possible to install the convection fan with a shorter depth of the main body than in the case of a propeller fan.
The main body can be made more compact and the direction of the suction port of the fan casing can be freely selected, so that there is not much restriction on the installation of the convection fan.

Further, the convection fan is constituted by a sirocco fan, and the suction port of the sirocco fan is arranged toward the rear side of the main body, so that the main body can be further compacted. In addition, the suction airflow of the convection fan goes rearward in the main body, so that the cartridge tank can be forcibly cooled, and the effect that the temperature rise of the cartridge tank can be suppressed can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an open combustion type hot air heater showing Embodiment 1 of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a sectional view taken along line CC of FIG. 1;

FIG. 5 is a cross-sectional view showing a general case of a conventional open combustion type hot air heater.

FIG. 6 is a sectional view taken along the line II of FIG. 5;

[Description of Signs] 1 Main body, 2 Indoor air intake, 4 Hot air outlet, 5
Air passage, 6 combustor, 8 cartridge tank, 9
Partition plate, 10A front space, 10B rear space, 11
Convection fan, 14 suction port, 16 fan casing, 18 combustion fan.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tadashi Usami 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term in Mitsubishi Electric Corporation (reference) 3K068 AA15 CB03 3L028 AA02 AC01 AC06

Claims (3)

[Claims] 1. A main body having an indoor air intake and a hot air outlet, an air passage connecting the indoor air intake and the hot air outlet in the main body, and a convection fan and a combustor disposed in the air passage. In the open combustion type hot air heater configured to mix the combustion gas of the combustor with the airflow from the convection fan and discharge the air from the hot air outlet, the partition in the main body space An open-combustion type warm air characterized in that a convection fan, a combustor, and a combustion fan are vertically arranged in tandem in a front space thereof and a cartridge tank is arranged in a rear space thereof. heater. 2. The open combustion hot air heater according to claim 1, wherein said convection fan is constituted by a sirocco fan. 3. The open combustion type hot air heater according to claim 1, wherein said convection fan is constituted by a sirocco fan, and a suction port of said sirocco fan is arranged toward a rear side of the main body.