WO2004016989A1

WO2004016989A1 - Reflection type oil burning appliance

Info

Publication number: WO2004016989A1
Application number: PCT/JP2003/009827
Authority: WO
Inventors: Masanori Kawamura
Original assignee: Toyotomi Co.,Ltd.
Priority date: 2002-08-01
Filing date: 2003-08-01
Publication date: 2004-02-26
Also published as: EP1548370A1; JP2004125384A; KR101035520B1; CN1306221C; KR20050029278A; EP1548370B1; ES2672306T3; CN1671996A; EP1548370A4

Abstract

A reflection type oil burning appliance capable of maintaining the upper wall of a frame body at low temperature and improving radiant efficiency. A combustion sleeve (3) and a reflecting plate (4) are installed in the frame body (1). A lower heat shield plate (5b) disposed between the reflecting plate (4) and the upper wall (1E) is attached to incline such that the opening (2) side is at a high level. Heat rays generated from the combustion sleeve (3) are reflected by the inclined lower heat shield plate (5b) and radiated from the openings (2) forwardly of the frame body (1). Attached to the lower heat shield plate (5b) is a hot air collision member (6) for baffling the flow of hot air generated from the combustion sleeve (3). The radiant heat from the lower heat shield plate (5b) heated to a high temperature is radiated from the openings (2) forwardly of the frame body (1). Cold air drawn in from air intake holes (1b) in the rear wall (1B) of the frame body (1) is guided from between the upper and lower heat shield plates (5a, 5b) forwardly of the frame body (1). The hot air diffused to have its temperature lowered when flowing across the hot air collision member (6) is forwardly discharged from the front end of the lower heat shield plate (5b) along the air delivered from a delivery port (1a).

Description

Specification

Reflective oil combustion equipment

TECHNICAL FIELD The present invention relates to a reflection type oil burning device capable of lowering the temperature of an upper wall portion (top plate) of a frame body as compared with the related art. More specifically, the present invention reduces the temperature of the upper wall (top plate) of the frame and reflects the heat rays radiated from the combustion tube to the outside of the frame to improve the radiation efficiency. This is related to petroleum combustion equipment.

Background art

Inside the frame, there is provided a combustion tube, and a reflecting plate located behind the combustion tube and reflecting the heat rays generated from the combustion tube to the front side. Reflective oil-fired appliances that emit heat rays forward are known. In this type of oil-fired equipment, radiant heat (heat rays) and high-temperature exhaust gas (hot air) are emitted from the combustion tube. The high-temperature exhaust gas (hot air) rising from the combustion tube is guided by one or more heat shield plates provided between the upper portion of the reflector and the upper wall (top plate) of the frame, and the heat of the frame is reduced. It flows into the opening provided in the front wall. Exhaust gas discharged from the front end of the heat shield plate to the outside of the frame rises as soon as it comes out of the opening. Therefore, the temperature of the upper edge of the opening located on the front side of the frame and the temperature of the front side of the upper wall of the frame become high.

In addition, since this heat shield plate is located directly above the combustion tube, the heat shield plate becomes hot due to the heat rays radiated upward from the combustion tube and the high-temperature exhaust gas. This also increases the temperature of the entire upper wall of the frame.

In recent years, the United States Safety Standard (UL) and the French Safety Standard (NF) have been designed to prevent accidents such as burns to infants caused by heaters. It stipulates that the body temperature be reduced or that a protective guard be provided so that hands do not come into contact with high-temperature parts near the opening.

As a technique for lowering the temperature of the frame, a conventional technique disclosed in Japanese Utility Model Publication No. In the technique of the above, an upper heat shield is provided between the lower heat shield that becomes hot and the upper wall of the frame, and the space between the upper and lower heat shields and the space between the upper heat shield and the upper wall are provided. However, forced air is blown using an electric fan to lower the temperature of the upper wall. However, this technology requires an electric fan, which increases the price of oil-fired equipment.

Japanese Utility Model Publication No. 50-185885 discloses a technique in which a fin for changing the exhaust gas outflow angle is provided below the front end of the heat shield plate. The fins serve to direct the exhaust gas flow forward. As a result, the discharged exhaust gas is prevented from approaching the upper wall, and the temperature of the upper wall of the frame is prevented from rising.

Further, Japanese Utility Model Laid-Open No. 4-110108 (U.S. Pat. No. 5,226,811) states that the lower part of the heat shield plate is provided with a lateral direction and a lower part. A structure is disclosed in which a hot air collision member that extends in both downward directions and that collides with exhaust gas (hot air) flowing along the lower heat shield plate is provided. By disposing the hot air collision member on the lower heat shield plate, the exhaust gas is diffused and a region where the hot air is intensively discharged is prevented from being formed. To prevent the temperature from rising locally.

However, even if the structure disclosed in Japanese Utility Model Application Laid-Open No. 4-110108 (U.S. Pat. No. 5,226,811) is employed, the size of the frame can be reduced or the heat generated by the combustion cylinder can be reduced. When the temperature increases, the high-temperature combustion exhaust gas (hot air) rises after exiting the opening provided in the front wall of the frame, and touches the front of the upper wall of the frame to raise the temperature of that portion. Is raised. Therefore, the conventional structure could not completely solve the problem of lowering the temperature of the frame.

Heat rays generated from the combustion tube and reflected by the reflector are radiated to the front of the frame from an opening provided in the front wall of the frame. In the conventional structure, the heat rays radiated upward from the combustion tube and reflected by the lower heat shield are radiated downward in the frame, and cannot reach the opening. As a result, the radiation efficiency was poor, and this was a factor in raising the temperature inside the frame.

Some of the heat rays reflected by the reflector and radiated forward from the opening reach the floor and warm the floor. However, the radiation angle of the heat ray reflected by the reflector reaches the floor surface at a position distant from the frame, but does not reach the floor near the frame. As a result, the temperature of the floor near the frame decreases. If there is a part where the temperature of the floor is low, heat is taken from this part and the heating efficiency is reduced. Therefore, there is a demand to warm a wide area of the floor.

Disclosure of the invention

The present invention provides a reflective oil-fired device that solves the above problems. The reflection type oil-burning apparatus of the present invention will be described with reference to the reference numerals shown in the drawings. The frame 1, the combustion cylinder 3, the reflection plate 4, the heat shielding plate 5, the hot air collision member 6, and the partition 8 And so on. The frame 1 has a front wall 1A having an opening 2, a rear wall 1B opposed to the front wall 1A, and two sides connecting the front wall 1A and the rear wall 1B. It has side walls 1C and 1D and an upper wall 1E connected to the upper end of each wall. The combustion tube 3 is arranged in the frame 1 and radiates heat rays around the heat ray radiating portion 3A. The partition 8 has a hole 8A from which the heat ray radiating portion 3A of the combustion tube 3 projects, and extends in the frame 1 in the lateral direction. The reflection plate 4 is disposed at a position behind and on both sides of the heat ray radiating portion 3A of the combustion tube 3, and reflects the heat ray to the opening 2 side. The plurality of heat shield plates 5 are arranged between the reflector plate (4) and the upper wall 1E with a vertical interval, and heat from the combustion tube 3 reaches the upper wall 1E. A lower heat shield plate 5b and an upper heat shield plate 5a for shielding the air. Further, in the present invention, an air passage 9 is formed between the lower heat shield plate 5b and the upper heat shield plate 5a. The rear wall 1B and / or the side walls 1C, 1D are provided with one or more intake holes 1b for supplying air outside the frame 1 to the air passage 9. Further, the front wall 1A is provided with a discharge port la for discharging air entering the air passage 9 from the air inlet 1b to the front of the front wall 1A. The hot air impingement member 6 is provided on the lower heat shield plate 5b, extends in the horizontal direction and the lower direction when the opening 2 is viewed from the front side, and opens along the lower heat shield plate 5b. It has a structure where hot air flowing toward the part 2 collides. The lower heat shield 5b is inclined so that the distance between the lower heat shield 5b and the partition 8 becomes longer as approaching the opening 2.

In the present invention, in particular, the hot air impingement member 6 is positioned at a position where the hot air that has passed over the hot air impingement member 6 is lowered toward the combustion cylinder 3 by a length that flows along the lower heat shield plate 5b while increasing the flow velocity. Is provided. In this way, when the hot air impingement member 6 The exhaust gas, that is, the hot air, whose temperature has been lowered by that, continues to flow along the lower surface of the lower heat shield plate 5b, and is discharged toward the front of the frame 1 at an increased flow velocity. If the flow velocity of the hot air discharged from the opening 2 increases, the rising angle of the hot air discharged from the opening 2 increases from a position some distance from the opening. As a result, it is possible to prevent the upper wall 1E of the frame 1 from being directly heated by the hot air released from the opening 2, thereby suppressing the temperature rise of the upper wall 1E as compared with the conventional case. can do.

Cool air (air outside the frame) drawn from one or more intake holes 1b provided in the rear wall IB of the frame 1 is supplied between the upper heat shield 5a and the lower heat shield 5b. And is discharged from the discharge port 1 a in front of the frame 1. The air discharged from the discharge port 1a flows above the exhaust gas flowing over the hot air collision member 6, and suppresses the exhaust gas discharged from the opening 2 from going upward. That is, the exhaust gas is emitted forward from the tip of the lower heat shield plate 5b along the lower side of the air emitted from the discharge port 1a. As a result, high-temperature exhaust gas can be kept away from the front of the upper wall 1E of the frame 1, and the temperature of the upper wall 1E can be lowered.

In addition, the lower heat shield plate 5 b makes the inclination angle of the front part located on the opening 2 side of the hot air collision member 6 smaller than the inclination angle of the rear part located on the rear side of the front part. Is preferred. In this way, it is possible to discharge the air discharged from the discharge port 1a more forward.

It is preferable that the hot air collision member 6 has a shape in which the height of the central portion 6a corresponding to the combustion tube 3 is lower than the side portions 6b located on both sides of the central portion 6a. In this way, the hot air easily passes over the central portion 6a rather than the side portions 6b. In this way, the decrease in the flow velocity of the hot air that passes over the central portion 6a is reduced. As a result, the hottest air that is emitted forward from the center of the tip of the lower heat shield plate 5b is emitted far away from the front of the upper wall 1E of the frame 1. It is possible to suppress a rise in the temperature of the central portion at the front end of the upper wall 1 E. The flow of hot air toward the opening 2 along the lower heat shield 5 b is Is disturbed by As a result, the temperature of the lower heat shield plate 5 becomes high, and The radiant heat from the hot plate 5 b increases, and the radiant heat is radiated from the opening 2 to the front of the frame 1. As a result, heat rays and radiant heat radiated in front of the frame 1 are increased, and the radiation efficiency is improved.

Further, it is preferable that the hot-air collision member 6 be provided with a plurality of through holes 6c on the side portions 6b except for the central portion 6a. In this way, the hot air once blocked by the central portion 6a of the hot air collision member 6 and distributed to the left and right passes through the through hole 6c in the left and right side portions 6b. As a result, the hot air is not concentrated on the central portion of the hot air collision member 6 but spreads right and left, and is stirred by passing the hot air through the through hole 6c, so that the temperature of the hot air can be lowered. The hot air that has passed through the through hole 6c is again accelerated along the lower surface of the lower heat shield 5b and flows out to the opening 2 side.

The lower heat shield plate 5b is preferably provided with a plurality of protrusions 7 protruding toward the partition wall 8 at a portion located between the facing region facing the combustion tube 3 and the hot air collision member 6. . In this case, the plurality of protrusions 7 extend radially from the opposing region side toward the hot air collision member 6 side, and radially spread the hot air generated from the combustion cylinder 3 and striking the opposing region. It is formed with an interval that can be guided to the two sides. Such a plurality of protrusions 7 guide the hot air to the opening 2 while spreading the hot air radially, so that the hot air flowing toward the opening 2 is dispersed and the temperature released from the opening 2 can be lowered. In addition, since the hot air is also diffused when climbing over the hot air collision member 6, the temperature is lowered, so that the temperature rise of the upper wall 1E can be suppressed low.

The plurality of protrusions 7 can be formed integrally with the lower heat shield plate 5b. The surface shape of each of the plurality of protrusions 7 is preferably determined so that the heat rays generated from the combustion tube 3 are irregularly reflected. In this way, the heat rays reflected by the lower heat shield plate 5b are diffused and radiated. The diffusely reflected heat rays are radiated from the opening 2 while being diffused, so that the front of the frame 1 and the floor surface can be uniformly and widely heated.

In addition, the heat rays reflected by the reflector 4 and radiated forward and the radiant heat from the reflector 4 are radiated toward the front of the frame 1 and the floor surface at a position away from the frame 1, The heat rays reflected by the lower heat shield 5b and the radiant heat from the lower heat shield 5b are radiated toward the floor near the frame 1, so the front of the frame 1 and the floor Can warm up extensively It became something.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a central longitudinal sectional view showing the structure of one embodiment of the reflective oil-fired appliance of the present invention.

FIG. 2 is a diagram showing main parts when the embodiment of FIG. 1 is viewed from the front.

FIG. 3 is a diagram showing a configuration of a main part of another embodiment of the present invention.

FIG. 4 is a cross-sectional view of a main part of the embodiment shown in FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a central longitudinal sectional view of an example of the reflection type oil-fired apparatus of the present invention. In FIG. 1, reference numeral 1 indicates a frame. The frame 1 includes a front wall 1A having an opening 2, a rear wall 1B facing the front wall 1A, and two sides connecting the front wall 1A and the rear wall 1B. It has side walls 1C and 1D, and an upper wall 1E connected to the upper end of each wall. An opening 2 is provided in the upper half of the front wall 1 A of the frame 1. Inside the frame 1, a combustion tube 3 that emits heat rays to the surroundings is arranged. Behind the combustion tube 3, there is a gap between the back and the side of the combustion tube 3, and both ends are connected to both edges in the width direction of the opening 2 of the frame 1. Plate 4 is arranged. The reflector 4 reflects the heat rays radiated from the combustion tube 3 in the direction of the opening 2. The partition 8 has a hole 8A from which the heat ray radiating portion 3A of the combustion tube 3 protrudes, and extends in the frame 1 in the lateral direction.

The heat shield plate 5 is disposed between the reflection plate 4 and the upper wall portion 1E so as to be spaced apart in the vertical direction so as to block heat from the combustion tube 3 reaching the upper wall portion 1E. It includes a side heat shield 5b and an upper heat shield 5a. An air passage 9 is formed between the lower heat shield 5b and the upper heat shield 5a. The rear wall 1B and / or the side walls 1C, 1D are provided with one or more intake holes 1b for supplying air outside the frame 1 to the air passage 9. Further, the front wall 1A is provided with a discharge port 1a for discharging air entering the air passage 9 from the air inlet 1b to the front of the front wall 1A. The air passage 9 is also formed between the reflector 4 and the rear wall 1B of the frame 1. Also, the lower heat shield 5 It is inclined so that the distance between the lower heat shield plate 5 b and the partition 8 becomes longer as approaching the opening 2. In this example, the upper heat shield 5a is inclined similarly to the lower heat shield 5b. As shown in the figure, the lower heat shield plate 5b and the upper heat shield plate 5a have an inclination angle of a front portion located closer to the opening 2 than the hot air collision member 6, and the inclination angle of the front portion is smaller than that of the front portion. The angle of inclination of the rear part located on the rear side is smaller than that of the rear part.

The heat rays generated from the combustion tube 3 are reflected toward the opening 2 of the frame 1 by the reflecting plate 4 arranged around and used for heating. On the other hand, the exhaust gas (hot air) emitted from the combustion tube 3 rises and is contained in the plurality of heat shield plates 5 arranged between the upper part of the heat shield plate 4 and the upper wall 1E of the frame 1. It hits the lower heat shield 5b, is guided along the lower surface of the inclined lower heat shield 5b in the direction of the opening 2 of the frame 1, and is discharged out of the frame 1.

The cool air (air outside the frame) drawn in from the intake hole 1 b passes between the back surface of the reflector 4 and the rear wall 1 B of the frame 1, and then passes through the inclined air passage 9 to the frame. It is discharged out of the frame 1 from the discharge port 1 a located above the opening 2 of 1.

In the above configuration, the heat rays generated in the combustion tube 3 are also radiated upward and reflected on the lower surface of the lower heat shield plate 5b.

In the structure in which the lower heat shield plate 5b is not inclined, the heat ray radiated upward from the combustion tube 3 only repeatedly reflects in the vertical direction and does not go to the opening 2. Therefore, the temperature inside the frame 1 becomes high, and the amount of heat rays radiated toward the front of the frame 1 is reduced, so that the radiation efficiency is reduced. As in the present invention, the distance (height dimension) between the lower heat shield plate 5b and the partition wall 8 is such that the lower side heat shield plate 5b is larger (higher) on the opening 2 side on the front surface of the frame body 1. When the hot plate 5b is inclined, the heat rays generated from the combustion tube 3 are reflected by the inclined lower heat shield plate 5 toward the lower portion of the frame 1 on the opening 2 side. Further, since the heat rays are radiated forward from the opening 2, the heat rays radiated forward of the frame 1 increase, and the temperature inside the frame 1 can be prevented from rising.

The hot air collision member 6 is provided on the lower surface of the lower heat shield plate 5b. The hot air collision member 6 extends in the lateral direction and the downward direction when the opening 2 is viewed from the front side, and hot air flowing toward the opening 2 along the lower heat shield plate 5 b collides. With structure I have. The hot air impingement member 6 is provided at a position lowered toward the combustion cylinder 3 by a length that the hot air that has passed over the hot air impingement member 6 flows along the lower heat shield plate 5b while increasing the flow velocity. In this example, the hot air impingement member 6 is located rearward from the opening 2 by about 1 Z4 of the length of the lower heat shield plate 5b in the front-rear direction. Exhaust gas emitted from the combustion tube 3 hits the lower heat shield 5b, flows along the lower surface of the inclined lower heat shield 5b in the direction of the opening 2 of the frame 1, and the lower heat shield The screen is temporarily blocked by a screen-like hot air collision member 6 attached to the plate 5b, and then diffused right and left along the hot air collision member 6. Therefore, the hot air temporarily stays on the lower surface of the lower heat shield plate 5 b by the hot air collision member 6. When the hot air temporarily stays in this way, the portion of the lower heat shield 5b behind the hot air collision member 6 becomes hot due to the hot air, and as a result, radiation from the lower heat shield 5b is emitted. Fever increases. This radiant heat is radiated from the opening 2 of the frame 1 toward the front of the frame 1.

In this way, in addition to the heat rays reflected by the reflector 4 and emitted forward, the heat rays and radiant heat from the lower heat shield 5b are radiated forward of the frame 1, thereby increasing the radiation efficiency. It can improve heating efficiency.

Further, a part of the heat ray radiated from the opening 2 toward the front of the frame 1 reaches the floor, so that the floor can be warmed. Conventionally, heat rays reflected by the reflector 4 and emitted forward did not reach the portion near the frame 1 on the floor, and the temperature of the floor near the frame 1 was lowered. In the present invention, since the heat rays reflected by the lower heat shield plate 5b and the radiant heat from the lower heat shield plate 5b travel toward the floor surface near the frame 1, the floor near the frame 1 is warmed. be able to. As a result, the floor can be heated over a wide area, and the heating efficiency can be improved.

Further, the airflow discharged from the discharge port 1a to the front of the frame 1 through the air passage 9 flows through the upper layer of the exhaust gas flowing forward along the lower surface of the inclined lower heat shield 5b, It serves to direct the exhaust gas to flow forward. In the present invention, the hot air temporarily blocked by the hot air collision member 6 and diffused along the entire hot air collision member 6 is diffused when climbing over the hot air collision member 6, and its temperature is lowered. Will be released. Therefore, the maximum temperature of the exhaust gas can be kept low, The rising power of the exhaust gas generated when the gas goes out of the frame 1 is weakened. As a result, the exhaust gas can be guided to the front of the frame 1 by the airflow discharged from the discharge port 1a to the outside of the frame 1, and the temperature rise at the front edge of the upper wall 1E can be suppressed to a low level. By the way, when the calorific value of the combustion tube 3 is large and the exhaust gas temperature is high, the maximum temperature of the exhaust gas is high even if the hot air collision member 6 is attached, and the temperature of the front edge of the upper wall 1 E of the frame 1 is expected. May not be so low. As a countermeasure for this, as in the other embodiments shown in FIGS. 3 and 4, the lower heat shield plate 5 b located between the facing area 10 facing the combustion cylinder 3 and the hot air collision member 6 is used. A plurality of protrusions 7 protruding toward the partition 8 are provided in the portion 11 of FIG. The plurality of protrusions 7 extend radially from the facing region 10 toward the hot air collision member 6 and open while radially spreading hot air generated from the combustion tube 3 and hitting the facing region. It is formed with an interval that can be guided to the part 2 side. With this structure, the exhaust gas rising from the combustion tube 3 is guided between the projections 7, and the exhaust gas flowing toward the opening 2 flows between the projections 7 along the lower heat shield 5b. Spreads radially. As a result, the hot air of the exhaust gas is dispersed and the temperature can be reduced. Further, the exhaust gas heading toward the opening 2 is diffused and lowered when passing over the hot air collision member 6, so that the temperature of the upper wall 1E is reduced. Can be kept low.

In addition, if the lower heat shield plate 5b is formed by pressing in a wave shape and the projection 7 is formed as an integrally formed structure that continuously projects from the lower surface of the lower heat shield plate 5, the heat generated from the combustion cylinder 3 is generated. The heat rays are radiated while being diffusely reflected and diffused on the inclined surface of the protruding portion 7 which is continuous with the lower heat shield plate 5b. Therefore, the heat rays directed to the floor surface do not concentrate on only a part, but reach the front of the frame 1 and the floor surface uniformly, so that the radiation efficiency of the heat rays is improved and the heating efficiency can be improved.

As shown in FIGS. 2 and 3, the hot air impingement member 6 has a shape in which the height of the central portion 6a corresponding to the combustion cylinder 3 is lower than the side portions 6b located on both sides of the central portion 6a. Has become. For this reason, the hot air composed of the exhaust gas is more easily overcome in the central portion 6a than in the side portions 6b, and the decrease in the flow velocity of the hot air in the central portion 6a is reduced. As a result, hot air is vigorously emitted forward from the tip of the lower heat shield plate 5b, so that the hot air moves away from the front of the upper wall 1E of the frame 1 and the upper wall 1 Above E temperature Ascent can be suppressed.

As shown in FIGS. 2 and 3, the hot air collision member 6 is preferably provided with a plurality of through holes 6c on the side 6b excluding the center 6a. When such a through-hole 6c is provided, part of the hot air dammed by the hot-air collision member 6 passes through the through-holes 6c on the left and right side portions 6b, so that high-temperature hot air is Spread right and left without concentrating on a. Further, when passing through the through-hole 6c, the hot air is agitated to lower the temperature, so that the hot air having the averaged temperature diffuses and flows over the entire hot air collision member 6.

According to the above embodiment, the lower heat shield 5b is provided with the hot air impingement member 6 for blocking the flow of hot air, and the radiant heat from the lower heat shield 5b, which becomes high in temperature by the hot air impingement member 6, is increased. Since the radiant heat is radiated from the opening 2 to the front of the frame 1, a wide area in front of the frame 1 can be warmed, and the heating efficiency can be improved.

Industrial applicability

As described above, according to the present invention, the lower heat shield plate is attached so as to be inclined so that the opening side is higher, and in addition to the heat rays reflected by the reflector, the lower heat shield is reflected by the inclined surface of the lower heat shield. Since the heat rays are radiated from the opening to the front of the frame, the radiation efficiency is improved, and the temperature inside the frame is prevented from rising due to the heat rays, so that the temperature inside the frame can be maintained at a low temperature.

The air outside the frame drawn from one or more intake holes provided in the rear wall of the frame flows between the upper heat shield and the lower heat shield, and the discharge outlet in front of the frame is formed. Released from. The air discharged from the discharge port flows above the exhaust gas flowing over the hot air collision member, and suppresses the exhaust gas discharged from the opening from going upward. In addition, in the present invention, the position of the hot air impingement member that blocks the flow of hot air is closer to the combustion cylinder side instead of the front edge of the lower heat shield plate, so that the exhaust gas passes over the hot air impingement member, and It flows along the heat shield toward the front opening at an increased flow rate and is discharged forward. If the flow velocity of the hot air discharged from the opening increases, the rising angle of the hot air discharged from the opening will increase from a position some distance from the opening, and as a result, the hot air discharged from the opening will increase. This prevents the upper wall of the frame from being directly heated, thereby suppressing the temperature rise of the upper wall as compared with the conventional case. W 2004 01

Can be. As a result, it is possible to prevent the upper wall of the frame from being directly heated by the hot air discharged from the opening, and it is possible to suppress a rise in the temperature of the upper wall as compared with the conventional case.

Claims

The scope of the claims

1. a front wall having an opening (2); a rear wall facing the front wall; two side walls connecting the front wall and the rear wall; A frame (1) having an upper wall connected to the upper end of the part;

A combustion tube (3) arranged in the frame (1) and radiating heat rays around the heat ray radiating portion;

A partition wall portion having a hole from which the heat ray radiating portion of the combustion tube (3) protrudes and extending laterally inside the frame body (1);

A reflector (4) disposed at a position behind and on both sides of the heat ray radiating portion of the combustion tube (3) to reflect the heat ray toward the opening (2);

A lower shield that is arranged between the reflector (4) and the upper wall at an interval in the vertical direction to block heat from the combustion tube (3) from reaching the upper wall. A plurality of heat shields (5) including a hot plate (5b) and an upper heat shield (5a);

An air passage formed between the lower heat shield and the upper heat shield,

An intake hole (lb) provided in the rear wall portion and / or the side wall portion to supply air outside the frame to the air passage;

A discharge port (la) that is provided in the front wall portion and discharges the air that has entered the air passage from the intake hole to the front of the front wall portion;

The heat is provided on the lower heat shield plate, extends in the lateral direction and the downward direction when the opening is viewed from the front side, and flows toward the opening along the lower heat shield plate. And a hot air collision member against which

A reflective oil-fired appliance in which the lower heat shield is inclined so that a distance between the lower heat shield and the partition wall becomes longer as approaching the opening.

The hot air impingement member (6) is disposed on the combustion cylinder (3) side by a length corresponding to a length of the hot air having passed over the hot air impingement member (6) and flowing along the lower heat shield plate (5b) while increasing the flow velocity. A reflective billing combustion device, characterized in that it is provided at a position that is lowered.

2. The hot air impingement member (6) has a central part (6a) corresponding to the combustion cylinder (3). ) Is set lower than the side portions (6b) located on both sides of the central portion (6a) so that the hot air can easily pass over the central portion from the side portions. 2. The reflection type oil burning device according to claim 1, wherein:

3. A plurality of through holes (6c) penetrating toward the opening (2) are formed in the side portion (6b) of the hot air collision member (6). Item 3. The reflective oil-fired device according to Item 1 or 2.

4. In the lower heat shield plate (5b), a portion located between the facing region facing the combustion tube (3) and the hot air collision member (6) has a partition wall (8) side. Are provided with a plurality of protruding parts (7)

The plurality of protrusions (7) radially extend from the facing region side toward the hot air collision member (6), and radially radiate the hot air generated from the combustion tube (3) and hitting the facing region. 2. The reflection type petroleum combustion device according to claim 1, wherein the reflection type petroleum combustion device is formed with an interval capable of being guided toward the opening while being widened.

5. The plurality of protrusions (7) are integrally formed with the lower heat shield (5b), and the surface shape of each of the plurality of protrusions (7) is the same as that of the combustion tube ( The reflective petroleum fuel according to claim 4, wherein the heat ray generated from (3) is determined to be irregularly reflected.

6. The reflective petroleum combustor according to claim 4, wherein a height dimension of the plurality of protrusions (7) is smaller than a height dimension of the hot air collision member (6).

7. The hot air impingement member (6) has the lateral length capable of facing the entire end of the plurality of protrusions (7) on the opening side. 4. The reflection type oil burning device according to 4.

8. The lower heat shield plate (5b) has an inclination angle of a front part located closer to the opening than the hot air collision member, and an inclination angle of a rear part located rearward of the front part. 2. The reflective oil-fired device according to claim 1, which is smaller than the above.