JPH078993Y2 - Hot air heater - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a heater capable of blowing hot air in the entire circumferential direction and heating an object to be heated on a heater top plate.

[Conventional technology]

Conventionally, a heater that can blow hot air in all directions is equipped with a blower that blows downward above the combustion cylinder top plate, and the indoor air blown to the combustion cylinder top plate becomes warm air. It blows out in the circumferential direction, and the hot exhaust gas rising from the burner at this time also blows out in the full circumferential direction together with the warm air.

[Problems to be solved by the invention]

By the way, the conventional heater of this type constitutes a forced convection type hot air blower by blowing hot air in all directions.
As a method of using a natural convection type heater, it is common to heat an object to be heated such as a kettle on the upper part of the burner, and when the forced convection type is used, this usage cannot be done at all. It was

[Means for solving problems]

This device enables the blowing of hot air in all directions and the heating of kettles etc. by making the hot air discharge structure a completely different structure from the conventional product. And a burner 2 for blowing combustion gas, which is a combustion cylinder that is erected so as to surround the upper opening of the burner 1. The combustion cylinder 2 is formed of a perforated cylinder or a heat ray transmission cylinder, and the upper end of the combustion cylinder 2 is a combustion cylinder. It is covered with a top plate 3, and a red heating element 4 is suspended from the combustion cylinder top plate 3. The red heating element 4 becomes red due to combustion heat and radiates a heat ray to the surroundings. Further, the combustion exhaust gas is burned from the mounting portion of the combustion cylinder top plate 3 when the combustion cylinder 2 is formed by a heat ray transmission tube without a through hole, and from the through hole of the porous tube when the combustion cylinder 2 is formed by a perforated tube. It flows out of the body 2.

Reference numeral 5 denotes a heater top plate that is located above the combustion cylinder top plate 3 and has an opening in the center. Reference numeral 6 denotes a wind tunnel formed between the heater top plate 5 and the combustion cylinder top plate 3. The upper wall plate is formed by the heater top plate 5, and a through hole 7 is formed in the center of the wind tunnel 6 corresponding to the opening of the heater top plate 5. Reference numeral 8 denotes a wind guide plate located between the wind tunnel 6 and the combustion cylinder top plate 3.
Is integrally formed with a flat plate portion facing the lower wall surface of the wind tunnel 6 and a tubular portion facing the wall surface of the central through hole 7 of the wind tunnel 6.

11 is an air hole provided on the outer wall of the wind tunnel 6, 10 is a blower installed in the wind tunnel 6 so that the air hole 11 faces the suction portion, and 9 is the lower wall of the wind tunnel 6 and the central through hole 7 wall It is a ring-shaped gap provided between and.

The opening of the heater top plate 5 can be closed by a blocking plate 12 if necessary.

[Explanation of action]

According to the present invention having the above-described structure, when the burner 1 burns, the combustion flame and the combustion exhaust gas rise and enter the combustion cylinder 2 to red heat the red heating element 4. When the combustion cylinder 2 is made of a perforated plate, heat rays are radiated from the small holes, and when it is made of a heat ray transmission tube, the heat rays are transmitted through the combustion cylinder 2 to the entire circumference of the heater. On the other hand, the combustion exhaust gas comes from the small holes when the combustion cylinder 2 is composed of a perforated plate,
Further, when it is composed of a heat ray transmitting cylinder, it flows out from the attachment portion of the combustion cylinder top plate 3 to the outside of the combustion cylinder 2 and rises.

By the way, a blower is installed in the wind tunnel 6 provided above the combustion cylinder top plate 3.
10 is attached, and when the blower 10 is rotated, air is forcibly supplied from the air hole 11 into the wind tunnel 6 to increase the internal pressure, and the air is ejected from the ring-shaped gap 9. And a part of the air passes through between the lower wall of the wind tunnel 6 and the baffle plate 8 and blows out all around,
A part of the air is blown out above the heater top plate 5 through between the wall of the central through hole 7 of the wind tunnel 6 and the baffle plate 8. Therefore, the combustion gas emitted to the outside of the combustion cylinder 2 is supplied as warm air in the entire circumference direction by the room air blown to the entire circumference, and a part of the combustion gas is guided from between the combustion cylinder top plate 3 and the baffle plate 8. The air is discharged upward through the tubular portion of the wind plate 8. Therefore, if a heated object such as a kettle is placed above the opening of the heater top plate 5, it can be heated by the combustion gas of high temperature.

In this invention, since the tubular portion of the baffle plate 8 is provided inside the central through hole 7 of the wind tunnel 6, if the opening of the heater top plate 5 is closed by the blocking plate 12, the tubular portion of the baffle plate 8 is formed. The air that has passed through the gap between the air cylinder and the wind tunnel 6 can be blown out in the entire circumferential direction through the gap between the flat plate portion of the air guide plate 8 and the combustion cylinder top plate 3 through the tubular portion of the air guide plate 8. The combustion gas did not flow into the upper part of the top plate 3, and the heater top plate 5 and the blocking plate 12 could be kept at a low temperature.

[Explanation of effects]

As described above, according to the present invention, the wind tunnel 6 having the central through hole 7 is provided between the combustion cylinder top plate 3 and the heater top plate 5, the blower 10 is provided in the wind cylinder 6, and the wind guide plate 8 is provided. Because of the flat plate portion and the tubular portion, the indoor air supplied by the blower 10 can be blown from the gap between the wind tunnel 6 and the baffle plate 8 in the entire circumferential direction and in the other upward direction. , Along with this air flow heater 5
Combustion gas flowing upwards can heat the object to be heated, and it is the first time that heating of a kettle or the like is possible with a forced convection type heater that could not be realized conventionally.

Further, the air flow guided upward in the tubular portion of the air guide plate 8 satisfactorily discharges the high temperature combustion gas upward, and at the same time, the heater top plate 5
If the opening of the above is closed by the blocking plate 12, the blocking plate 12 is cooled, and this cooling air flow is generated by the baffle plate 8 and the combustion cylinder top plate 3.
It is possible to keep the temperature of the entire heater top plate 5 at a low temperature like the conventional forced convection type heater by blowing out from the gap of
It is a very practical product.

[Brief description of drawings]

FIG. 1 is a sectional view of this device, and FIG. 2 is a sectional view of an essential part showing another embodiment. 1 ... Burner, 2 ... Combustion cylinder, 3 ... Combustion cylinder top plate, 4 ...
… Red heat element, 5 …… Heater top plate, 6 …… Wind tunnel, 7
...... Through hole, 8 ... Baffle plate, 9 ... Gap, 10 ... Blower,
11 ... Air holes

Claims (1)

[Scope of utility model registration request] 1. A burner 1, a combustion cylinder 2 formed of a perforated cylinder or a heat ray transmitting cylinder located above the burner 1, a combustion cylinder top plate 3 covering the upper end of the combustion cylinder 2, and an inside of the combustion cylinder 2. In the shunt having the red heat element 4 located at, a wind tunnel 6 having a through hole 7 in the center is provided between the heater top plate 5 having an opening in the center and the combustion cylinder top plate 3. 6 is provided with a flat plate portion that faces the lower wall surface of the wind tunnel 6, and a tubular portion that faces the wall surface of the central through hole 7 of the wind tunnel 6 that are integrally formed.
Is provided with a ring-shaped gap 9 between the wall of the central through hole 7 and the lower wall, and a blower 10 is attached in contact with the outer wall of the wind tunnel 6, and the blower 10 is an air hole 11 provided on the outer wall of the wind tunnel 6. A warm-air heater characterized in that air is sucked from the air and discharged from the gap 9 toward the baffle plate 8.