JPH081361Y2 - Radiant hot air heater - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a radiant hot air heater that simultaneously performs radiant heating through a radiant window together with warm air heating.

<Prior Art> Conventionally, in this type, for example, in Japanese Utility Model Publication No. 62-
As disclosed in Japanese Patent No. 40279, a red heating element is provided above the combustion section, and heat rays from this red heating element are radiated from a radiant window vertically formed on the upper front part of the main frame to perform radiant heating. At the same time, warm air was heated by driving a warm air fan behind the combustion tube equipped with a red heating element.

<Problems to be solved by the invention> By the way, in this conventional one, the hot air emitted from the combustion part is not controlled, and the red heat body cannot be heated well, so that a sufficient red heat state cannot be obtained. It has the drawback that the radiant heating effect does not rise, and because the radiant glass is directly exposed to the hot air in the combustion cylinder, the back side of the radiant glass is contaminated, which further reduces the radiant heating effect. The area around the window will deteriorate in a short period of time, and the heat shield frame that guides the warm air to the warm air outlet at the lower front will be bent at a right angle, so smooth and good warm air discharge cannot be obtained. There was a drawback called.

<Means for Solving Problems> In order to solve the above-mentioned drawbacks by paying attention to this point, the present invention has a structure in which a combustion part is provided in the inner lower part and the upper part is heated by the combustion part to turn red. A combustion tube provided with a red heating element, and an opening window made of transparent glass for exposing the red heating state of the red heating element on the front side, and an air flow passage formed inside the combustion tube to stand upright all around. A rectifying cylinder having a plurality of rectifying holes, a wind collecting cylinder standing upright on the outside of the combustion cylinder and having a wind collecting port formed at an appropriate position on the peripheral wall, and a warming pipe covering the upper side of the combustion cylinder. A cooling air passage is formed between the air passage and the reinforcing top plate on the upper side, and a heat shield frame provided with a radiant glass inclined obliquely upward at a position facing the front opening window,
A main body provided with a hot air outlet communicating with the warm air passage in the lower front portion, a radiation window communicating with the cool air passage and facing the radiant glass in the upper portion, and a warm air fan on the rear surface side. It is composed of a frame and.

<Operation> The primary combustion hot air generated by the combustion of the combustion section 1 is
While rising inside, the secondary air is uniformly dispersed through the straightening holes 17 of the straightening cylinder 14 to receive the supply of the secondary air, complete combustion of the secondary combustion, and the momentum of the supply of the secondary air to generate hot air. It is possible to obtain a good red heat state by strongly contacting the red heat body 10 concentrated in the central part and hanging from the upper part, and strongly heating the red heat body 10. This red heat is transmitted through the opening window 8 and the radiant glass 23. The radiant window 22 radiates through the radiant window 22 to enhance a large radiant heating effect, and the combustion tube 5 facing the red heating element 10
Since the opening window 8 of is made of transparent glass, the hot air rising in the combustion cylinder 5 is not directly emitted from here and does not come into contact with the radiant glass 23. It is possible to prevent radiant heat from adhering to the radiant air and to prevent radiant heating for a long period of time.

Further, at the same time as the combustion of the combustion section 1 starts, the warm air fan 20 is also driven to start blowing air, and a part of this blowing air is the air collecting port of the air collecting cylinder 18.
The secondary air is supplied via 19 and most of the remaining air is blown to the outer circumference of the combustion cylinder 5 and
The hot air is mixed with the hot air discharged through the flow hole 6 of the lid 7 at the upper end and becomes hot air toward the hot air outlet 24 at the lower side, which constitutes the wall surface on the front side of the hot air passage 25 at this time. Since the radiant glass 23 is inclined obliquely upward, the warm air is guided by the radiant glass 23 and smoothly flows into the warm air outlet 24 without slowing down the flow velocity, which enables strong warm air heating. Yes, the other part of the hot air fan 20 is being guided by the guide portion 28 of the heat shield frame 21 and circulates in the cold air passage 27, and is blown as cooling air from the upper end of the radiant glass 23 to the radiant window 22. The periphery of the radiant window (22) heated by radiant heat is cooled to prevent deterioration, so that the radiant window (22) can be used safely for a long period of time.

<Embodiment> Next, a radiant heating appliance according to the present invention will be described with reference to a preferred embodiment shown in the drawings.

Reference numeral 1 denotes a combustion section composed of a cylindrical vaporization pot burner, which is provided in the center of the partition plate 3 in the lower part of the main body frame 2 and covered by a burner case 4 at the lower outer periphery thereof.

Reference numeral 5 is a cylindrical combustion cylinder that surrounds the upper portion of the combustion unit 1. The upper end portion is provided with a lid body 7 having a plurality of through holes 6, and an opening window 8 provided with transparent glass is formed in the upper front portion. In addition, an inflow gap 9 for inflowing secondary air is formed almost all around the lower end.

Reference numeral 10 is a red heating body hanging inward from the upper end of the combustion cylinder 5 at a position facing the opening window 8 and forming a large number of small hole-shaped small holes 11 in a horizontal corrugated plate and vertically A reinforcing plate 13 having a through hole 12 formed at the center is provided at the end.

Reference numeral 14 is a rectifying cylinder which is erected upright while covering the combustion part 1 while forming an air flow passage 15 between the inner wall of the combustion cylinder 5 and a notch portion 16 which is formed in a portion facing the red heating element 10 in the upper front portion. Open window 8
The red heating element 10 can be seen more directly, and the notch 16
A plurality of horizontally elongated rectifying holes 17 are formed in a brick shape on the entire circumference except for the secondary air flowing through the inflow gap 9 of the combustion tube 5 while being uniformly dispersed and supplied to the upper part of the combustion section 1. It is a thing.

Reference numeral 18 denotes an air collecting cylinder that covers the outside of the combustion cylinder 5. Air collecting ports 19 are formed on the back surface and both side walls, and a part of the air blown from a warm air fan 20 provided on the back surface of the main body frame 2 is secondary air. As combustion cylinder 5
Is to be supplied to

Further, the air collecting cylinder 18 also has a heat shielding function of preventing diffusion of heat from the combustion cylinder 5.

Reference numeral 21 is a heat shield frame provided with a radiant glass 23 made of bead glass that is inclined obliquely upward between the opening window 8 and the radiant window 22 above the main body frame 2. A warm air passage 25 is formed from the warm air fan 20 side on the rear side to the warm air outlet 24 on the lower front side of the main body frame 2, and a cool air passage 27 for cooling is formed between the warm air fan 24 and the reinforcing top plate 26 on the upper side. Further, a guide portion 28 is provided at the rear end portion so as to be inclined downward and guide the air flow.

Reference numeral 29 denotes a cold air opening formed at the upper end of the radiant glass 23 in communication with the cold air passage 27.The cooling air flowing from the cold air passage 27 is blown out along the radiant glass 23, and the periphery of the radiant window 22, especially the radiant window 22. The front surface of the lower body frame 2 is cooled.

Reference numeral 30 denotes a light shielding plate attached to the back side of the heat shield frame 21 at a position connecting the red heating element 10 and the hot air outlet 24, and prevents the red heat of the red heating element 10 from being seen from the hot air outlet 24. .

 Reference numeral 31 is a radiation guard attached to the radiation window 22.

 Reference numeral 32 is an operation portion formed on the front side of the upper surface of the main body frame 2.

Reference numeral 33 is a support base for supporting the burner case 4 on the lower plate 34.

<Effect of the Invention> In short, the present invention is provided with the combustion section 1 in the inner lower part, the red heat body 10 which is heated by the combustion section 1 and becomes red heat in the upper part, and the red heat state of the red heat body 10 in the front side. And a combustor 5 having an opening window 8 made of transparent glass for exposing the air, and an air flow passage 15 formed inside the combustor 5 so as to stand upright, and a plurality of flow straightening holes 17 are formed on the entire circumference of the combustor. A warm air passage 25 is provided between the cylinder 14 and the air collecting cylinder 18 which is erected outside the combustion cylinder 5 and has an air collecting port 19 formed at an appropriate position on the peripheral wall. Further, a cold air passage 27 is formed between the upper reinforcing plate 26 and the heat shield frame 21 provided with a radiant glass 23 inclined obliquely upward at a position facing the front opening window 8,
A warm air outlet 24 communicating with the warm air passage 25 is provided in the lower part of the front surface, and a radiant glass communicating with the cold air passage 27 is provided in the upper part.
The radiant window 22 is formed so as to face 23, and the main body frame 2 having the warm air fan 20 is provided on the back side, so that the red heat body always maintains a good red heat state and the radiant glass is contaminated. It is possible to realize strong radiant heating without any further, and since the hot air flowing through the hot air passage is discharged from the hot air outlet while being guided by the inclined radiant glass, the flow velocity can be suppressed. The radiant window itself and the radiant window are cooled by the cooling air flowing through the cold air passage, and it is possible to ensure that the radiant window itself and its surroundings deteriorate in a short period of time. Therefore, it is possible to provide a radiant hot air heater that is good for both radiant heating and warm air heating.

[Brief description of drawings]

FIG. 1 is a perspective view of a radiant type hot air heater according to an embodiment of the present invention, FIG. 2 is a sectional view of the same, and FIG. 3 is a perspective view of the same rectifying cylinder. DESCRIPTION OF SYMBOLS 1 ... Combustion part, 2 ... Main body frame, 8 ... Opening window, 10 ... Red heating body, 14
... rectifying cylinder, 17 ... rectifying hole, 18 ... air collecting cylinder, 19 ... air collecting port, 20 ...
Warm air fan, 21 ... Heat shield frame, 22 ... Radiant window, 23 ... Radiant glass, 24 ... Warm air outlet, 25 ... Warm air passage, 26 ... Reinforcement top plate, 27 ...
Cold wind path.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Masahiro Tamura 7-7 Higashishinpo, Sanjo City, Niigata Prefecture Examiner Uchida Manufacturing Co., Ltd. Kazuto Tomioka (56) Bibliography Sho 61-54102 (JP, U) Actually open 60-108954 (JP, U) Actually open 59-170109 (JP, U) Actually open 51-74350 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A transparent glass which is provided with a combustion section 1 at an inner lower portion thereof, is provided at an upper portion thereof with a red heating body 10 which is heated by the combustion section 1 and becomes red hot, and further shows a red heat state of the red heating body 10 at a front side thereof. A combustion cylinder 5 having an opening window 8 composed of
An air flow passage 15 is formed inside the combustion cylinder 5 and is erected, and a rectification cylinder 14 having a plurality of rectification holes 17 all around the circumference is provided. A wind collecting tube 18 having a wind port 19 formed therein,
A warm air duct 25 is provided between the combustion cylinder 5 and the combustion cylinder 5 so as to cover it.
Further, a cold air passage 27 is formed between the upper reinforcing plate 26 and a heat shield frame 21 provided with a radiation glass 23 inclined obliquely upward at a position facing the front opening window 8 and a front surface. The lower part is provided with a warm air outlet 24 communicating with the warm air passage 25, the upper part is formed with a radiation window 22 communicating with the cold air passage 27 and facing the radiation glass 23, and the rear side is provided with a warm air fan. A radiant hot air heater characterized by comprising a main body frame 2 provided with 20.