JPH076648U - Hot air heater - Google Patents

Abstract

(57) [Abstract] [Purpose] Prevents excessive escape of the combustion gas blown out from the suppression plate above the combustion cylinder, stabilizes combustion, and promotes the blowing of warm air by the blown combustion gas so that warm air is blown out smoothly. To provide a hot air heater. [Structure] An air outlet 8 and an opening 10 composed of a plurality of straightening holes 9 concentrically provided on the outer periphery of the air vent 8 with respect to the center of a suppression plate 7 provided on an upper portion of a combustion cylinder 6. By forming the suppression plate 7 with eccentricity in the direction, the combustion gas is prevented from coming out too much from the combustion cylinder 6, and combustion is stabilized,
Also, the combustion gas blown out promotes the blowing of warm air to smooth out warm air.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a warm air heater, which is generally called a fan heater, which emits combustion gas directly into a room for heating.

[0002]

[Prior art]

 Conventionally, in this type of hot air heater, the upper part of the combustion tube is closed by a suppression plate having an opening.

[0003]

[Problems to be solved by the device]

 By the way, in the case where the upper part of the combustion cylinder is blocked by this conventional suppressor plate, the position of the opening of the suppressor plate is not specified in particular, and experience shows that it was appropriately opened near the center part, so warm air It does not merge well with the blast of the road, the temperature of the hot air becomes uneven, and the combustion gas that blows against the blast creates resistance, which causes an unnecessary load on the hot air motor and reduces performance. It was

[0004]

[Means for solving problems]

 In order to solve the above-mentioned drawbacks by paying attention to this point, the present invention has a configuration in which the combustion tube is provided with a combustion cylinder which covers the outer periphery of the upper portion of the combustor and is closed by a suppression plate having an opening above. In the warm air heater in which the combustion heat generated in the section is directly discharged into the room by the blowing of the warm air fan, the opening of the suppressing plate is formed so as to be eccentric in the hot air outlet direction.

[0005]

[Action]

 By forming the opening 10 of the suppression plate 7 provided on the upper part of the combustion cylinder 6 by eccentricity toward the outlet 11, the draft of the combustion gas is suppressed and the escape of the combustion gas from the combustion cylinder 6 is optimized. Stabilize combustion to prevent lowering of combustion temperature, increase of heat loss, deterioration of odor of combustion gas, prevention of soot generation and burner burnout, and hot air passage 14 Since the combustion gas is blown out inclining to the blowing direction, the blowing of warm air is promoted, and the warm air comes out more smoothly.

[0006]

【Example】

 Next, a warm air heater according to the present invention will be described with reference to a preferred embodiment shown in the drawings. Reference numeral 1 denotes a flame port formed by an upper net by vaporizing the fuel oil supplied by being heated by a heating means (not shown) and premixing this vaporized gas and the combustion air supplied by the combustion fan 2. It is a combustor that burns from the section 3, and is fixed to the partition plate 5 in the main body frame 4 with the flame opening 3 protruding.

Reference numeral 6 is a combustion cylinder that covers the outer circumference of the flame opening 3 on the partition plate 5, and is equipped with a disc-shaped suppressing plate 7 on the upper part, and a vent having a large diameter with respect to the center of the suppressing plate 7. 8 and an opening 10 composed of a plurality of small-diameter rectifying holes 9 concentrically provided on the outer periphery of the vent hole 8 are formed on the suppressing plate 7 eccentrically toward the hot air outlet 11.

Reference numeral 12 denotes a heat shield frame, which is located between the inner combustion tube 6 and the warm air fan 13 provided on the back surface of the body frame 4 to the air outlet 11 below the front surface of the body frame 4. In addition to forming the passage 14, an air passage 16 is formed between the upper reinforcing plate 15 and the upper reinforcement plate 15 to blow the air from the warm air fan 13 that is cooler than the warm air passing through the warm air passage 14 to the outlet 11. In addition, a guide portion 17 is provided at the rear end portion so as to be inclined downward and guide the air flow. 18 is a stand to which the main body frame 4 is fixed.

Next, the operation of this embodiment will be described. When the well-known combustion operation is performed as in the conventional case, the combustor 1 starts combustion, the warm air fan 13 is driven, and the combustion gas rises in the combustion cylinder 6, but the ventilation formed in the suppression plate 7 Since the opening 10 formed by the mouth 8 and the straightening hole 9 is eccentrically provided in the direction of the outlet 11, the rising combustion gas cannot be smoothly blown out, and the draft of the combustion gas is suppressed to prevent the combustion gas from escaping. I try not to pass too much. As a result, the combustion gas is blown out at a proper flow velocity when it is blown out from the ventilation hole 8 or the flow regulating hole 9 of the suppressing plate 7, and the ventilation port 8 or the flow regulating hole 9 is eccentric toward the blowout port 11, so that the direction of the combustion gas is blown out. Blows out in a direction that promotes the blowing of warm air, thus facilitating the blowing of warm air, smoothing out the blowing of warm air, stabilizing combustion, suppressing the deterioration of the odor of combustion gas, and reducing heat loss. Make it smaller to prevent lowering of thermal efficiency. The combustion gas blown out from the opening 10 of the suppression plate 7 joins the blown air in the hot air passage 14 to become warm air, which is discharged into the room through the air outlet 11 at the lower front of the main body frame 4, and the room is heated well from below. To do.

The opening 10 of the suppressing plate 7 is not a single hole, but a large-diameter vent hole 8 is formed at the center of the suppressing plate 7 as in the present invention, and a small-diameter rectifying hole 9 is concentrically formed on the outer periphery thereof. By providing multiple units, the combustion gas joins the air blown by the warm air fan over a wider area, and the temperature of the warm air does not become uneven.

[0011]

[Effect of device]

 In short, this invention has a combustion cylinder that covers the outer circumference of the flame opening at the upper part of the combustor and is closed by a suppression plate with an opening at the top, and directly transfers the combustion heat generated at the flame opening by blowing a warm air fan. In a warm air heater that discharges indoors, the opening of the suppression plate is formed eccentrically toward the hot air outlet to suppress the draft of the combustion gas and excessively escape the combustion gas from the combustion cylinder. To stabilize combustion, prevent lowering of combustion temperature to prevent increase of heat loss, suppress deterioration of odor of combustion gas and prevent soot generation and burner burnout. Since the combustion gas blows out inclining in the blowing direction of the hot air passage, it promotes the blowing of the warm air and makes the warm air blow out more smoothly.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a warm air heater according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part of the hot air blower.

FIG. 3 is a configuration diagram of the combustion cylinder, in which (a) is a plan view and (b) is a plan view.
Is a cross-sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combustor 3 Flame part 6 Combustion cylinder 7 Suppression plate 8 Vent hole 9 Straightening hole 10 Opening 11 Air outlet 13 Hot air fan

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Kiryu Yoshie 7-7 Higashishinpo, Sanjo City, Niigata Prefecture

Claims (1)

[Scope of utility model registration request] 1. A hot-air fan is provided with a combustion tube 6 which covers an outer periphery of a flame opening 3 of an upper portion of a combustor 1 and is closed by a suppression plate 7 having an opening 10 at an upper portion thereof. In the warm air heater that directly discharges the air into the room by blowing the air, the opening 10 of the suppressing plate 7 is formed so as to be eccentric toward the hot air outlet 11 direction.