JPH1114040A - Outdoor combustion apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an outdoor combustion apparatus which achieves a lower production cost, by making it compact as a whole with a beautiful appearance. SOLUTION: An apparatus is provided with a guide box 8 with a front side thereof opened and arranged at an upper part in a body case 1, and a topboard 3 with an L-shaped cross section covering the top surface of the guide box 8, so as to form an interval with the top plate 8c of the guide box 8 while covering the front of the guide box. A bottom part of the guide box 8 is provided with a suction pipe connection hole 9 to supply air for combustion to a combustor 18 and an exhaust pipe connection hole 11 to discharge an exhaust gas after combustion with the combustion 18. The topboard 3 is provided with an air intake 14 and an exhaust 15, communicating with the suction pipe connection hole 9 and the exhaust pipe connection hole 11 of the guide box 8 through spaces independent of each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a built-in oil or gas combustor, such as an outdoor unit of a hot water heating system,
The present invention relates to an outdoor combustion device installed and used outdoors.

[0002]

2. Description of the Related Art FIG. 5 is a sectional view showing a conventional outdoor combustion apparatus disclosed in Japanese Utility Model Laid-Open Publication No. 3-97108. In the figure, reference numeral 19 denotes a combustor 2 provided in a main body case 28.
1, a heat exchanger having a heat exchange section 27 and an intake port 4,
2 is a cistern sink for storing heated hot water, 23
Is a circulation pump, 24 is a hot water forward pipe, and 25 is a hot water return pipe. Reference numeral 26 denotes an intake / exhaust cylinder provided with an intake port 4 and an exhaust port 5 provided at an upper portion outside the main body case 28.

Next, the operation will be described.
Then, air is taken in from the intake port 4 to generate combustion gas,
With this heat, the hot water supplied from the hot water return pipe 25 is heated when passing through the heat exchange unit 27, and the hot water that has been heated to a high temperature is temporarily stored in the cistern tank 22. Next, the hot water stored in the cistern tank 22 is supplied to the load from the hot water forward pipe 24 by the circulation pump 23.

[0004]

The conventional outdoor combustion apparatus is constructed as described above, and the intake / exhaust tube 26 is attached to the main body case 28.
Because it protrudes from the main body 28, not only the appearance is impaired, but also the external dimensions become large, and since the intake and exhaust cylinder 26 is outside the main body case 28, the intake and exhaust cylinder 26 must be made of a material such as stainless steel having excellent corrosion resistance. However, there is a problem that the cost increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide an outdoor combustion device which is beautiful, compact and can be manufactured at low cost.

[0006]

An outdoor combustion apparatus according to the present invention includes a guide box provided at an upper part in a main body case and having an open front surface, and a cover for covering the front surface of the guide box and an upper surface of the guide box. A top plate having an L-shaped cross section that covers an upper surface of the guide box so as to form an interval therebetween, and an intake pipe connection hole for supplying combustion air to a combustor at a bottom of the guide box; An exhaust pipe connection hole for discharging exhaust gas after combustion in the vessel, and a space independent from the intake pipe connection hole and the exhaust pipe connection hole of the guide box in the front portion of the top plate. And an intake port and an exhaust port that communicate with each other through the air.

A guide box provided in the upper portion of the main body case and having an open front surface, and an exhaust passage provided in the guide box and forming an exhaust passage between the guide box and an exhaust port in the front surface. A guide and a top plate having an L-shaped cross section that simultaneously cover the front surface of the exhaust guide and the front surface of the guide box and cover the upper surface of the guide box so as to form an interval between the guide box and the upper surface. In the bottom of the guide box, an intake pipe connection hole for supplying combustion air to the combustor and an exhaust pipe connection hole for discharging exhaust gas after combustion in the combustor are provided, and the top plate is provided with An intake port corresponding to the intake pipe connection hole of the guide box and an exhaust window corresponding to the exhaust pipe connection hole are provided on the front part, and the exhaust window and the exhaust of the exhaust guide are provided. With interposed a packing between the one in which the exhaust window the intake pipe connecting hole and the intake port and the exhaust port is communicated via a separate space from each other.

Further, the guide box is formed such that the bottom has a downward slope toward the front.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. Hereinafter, a first embodiment of an outdoor combustion device according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an outdoor combustion apparatus according to Embodiment 1 of the present invention, FIG. 2 is a front sectional view, FIG. 3A is a sectional view taken along line AA of FIG.
(B) is a partial sectional view along the line BB in FIG. 2, and FIG. 4 is an exploded perspective view of a main part of the hot water heater.

In the figure, 1 is a main body case, 2 is a front panel, 3 is a top plate having an L-shaped cross section having an upper surface portion 3a and a front surface portion 3b provided along the front panel 2 which is a front surface of the case. is there. Reference numeral 4 denotes an intake port provided on the front surface 3a of the top plate 3, reference numeral 5 denotes an exhaust window also provided on the front surface 3a,
Reference numeral 13 denotes an exhaust guide provided with an exhaust port 13d, reference numeral 6 denotes a hot water return pipe for sending heated hot water to a load, and reference numeral 7 denotes a hot water return pipe returning from the load.

Reference numeral 8 denotes a box-shaped guide box having a bottom plate 8a, a first side plate 8b surrounding the rear and both ends of the bottom plate 8a, and a top plate 8c covering the top of the bottom plate 8a. It is provided in the upper part inside the main body case 1. 9
Is an intake pipe connection hole provided in the bottom plate 8a of the guide box 8, and is connected to the intake pipe 10. 11 is also the bottom plate 8a
Is connected to the exhaust pipe 12 through an exhaust pipe connection hole provided at the bottom.

Reference numeral 13 denotes an upper plate 13a, a second side plate 13b surrounding the rear and both ends of the upper plate 13a and having a height lower than the height of the first side plate 8b, and a front plate 13c having an exhaust port 13d. A lower end of the second side plate 13b is attached to the inside of the guide box 8 so as to surround the exhaust pipe connection hole 11.

14 is a bottom plate 8a of the guide box 8,
An exhaust passage surrounded by a front portion 3b of the top plate 3, an exhaust guide 13, the exhaust port 13d, and an exhaust pipe connection hole 11;
15 is a front part 3 of the top plate 3
b, an intake section constituted by an intake passage surrounded by the guide box 8 and the exhaust guide 13, the intake port 4 and the intake pipe connection hole 9.

A blower 16 sends out combustion air taken from the intake section 15 through the intake pipe 10 to the blow pipe 17.
Reference numeral 18 denotes a combustor for generating a combustion gas by the combustion air and fuel sent from the blowing pipe 17, and reference numeral 19 denotes a heat exchanger for heating hot water returning from the load by the combustion gas and sending it to the load again. .

With the above configuration, the upper end of the first side plate 8b of the guide box 8 is mounted inside the upper surface 3a of the top plate 3, and the front end of the first side plate 8b and the front end of the bottom plate 8a are suctioned. The top plate 3 is attached to the inside of the front surface portion 3b so as to surround the opening 4 and the exhaust window 5. At this time, the exhaust port 13d of the exhaust guide 13 is located inside the exhaust window 5, the front end of the second side plate 13b surrounds the exhaust window 5, and the exhaust port 13d is located inside the exhaust window 5. It is attached to the inside of the front part 3 b of the top plate 3 via a packing 29. Thereby, the intake unit 15 and the exhaust unit 14 are formed on the top plate 3.

If the top plate 3 provided with the exhaust part 15 and the intake part 14 is mounted on the upper part of the main body case 1,
Simultaneously with this mounting operation, the intake pipe 10 and the exhaust pipe 12 provided in the main body case 1 are connected to the intake pipe connection hole 9 and the exhaust pipe connection hole 11 provided in the guide box 8, respectively, so that the intake and exhaust of the entire device is performed. The passage is completed.

In the outdoor combustion equipment constructed as described above, the combustion air taken in from the intake section 15 by the blower 16 passes through the intake pipe 10 and the blow pipe 17 and the combustor 1
8 to generate combustion gas. The hot water supplied from the hot water return pipe 7 is heated and heated by the heat when passing through the heat exchanger 19, and is supplied to the load from the hot water forward pipe 6.

The combustion gas after the heat exchange is supplied to the exhaust pipe 1
2 through the exhaust unit 14.

At this time, since the height of the second side plate 13b of the exhaust guide 13 is lower than the height of the first side plate 8b of the guide box 8, the upper plate of the exhaust guide 13 is provided. A gap is formed between 13a and the upper surface plate 8c of the guide box 8. That is, the upper surface plate 8c of the guide box 8 covers the upper surface so as to form a space between the upper surface of the exhaust guide 13 and the upper surface. Therefore, the heat of the exhaust gas is prevented from being transmitted to the upper surface plate 8c of the guide box 8, and the heat of the exhaust gas is also prevented from being transmitted to the upper surface portion 3a of the top plate 3. On the other hand, the combustion air taken in from the intake port 4 enters this gap and is cooled by the combustion air, so that the temperature rise of the upper surface 3a of the top plate 3 can be effectively suppressed.

Further, the bottom plate 8a of the guide box 8
Since a slope is formed downward toward the front,
Even when rainwater enters the guide box 8 from the intake port 5 or the exhaust port 13d, it can be guided forward by the inclination of the bottom plate 8a and can be discharged downward along the inner surface of the main body case 1. Furthermore, an exhaust port 13b is formed in the exhaust guide 13, an exhaust window 5 is provided in the front surface 3b of the top plate 3, and the exhaust guide 13 is attached to the inside of the front surface 3b of the top plate 3 via the packing 29. Since the heat of the exhaust guide 13 is not transmitted to the top plate 3, the temperature rise can be further prevented, and the top plate 3 does not need to be made of a material having high corrosion resistance, such as stainless steel, and the painting process is unnecessary. A coated steel plate can be used, and manufacturing costs can be reduced.

[0021]

As described above, the outdoor combustion equipment according to the present invention comprises a guide box provided in the upper part of the main body case and having an open front surface, and a cover for covering the front surface of the guide box and the upper surface of the guide box. A top plate having an L-shaped cross section that covers an upper surface of the guide box so as to form an interval therebetween, and an intake pipe connection hole for supplying combustion air to a combustor at a bottom of the guide box; An exhaust pipe connection hole for discharging exhaust gas after combustion in the vessel, and a space independent from the intake pipe connection hole and the exhaust pipe connection hole of the guide box in the front portion of the top plate. Since the intake port and the exhaust port communicating with each other are provided, the intake section and the exhaust section are inside the top plate,
The whole equipment can be made compact, the appearance can be improved, and the intake and exhaust parts are not directly exposed to the outside air, so there is no need to use highly corrosion-resistant materials, and the manufacturing cost is reduced. Can be.

Further, according to the outdoor combustion equipment of the present invention, a guide box provided in the upper part of the main body case and having an open front surface is provided in the guide box, and an exhaust passage is formed between the guide box and the guide box. And an exhaust guide provided with an exhaust port on the front surface, and simultaneously covers the front surface of the exhaust guide and the front surface of the guide box, and the upper surface of the guide box so as to form an interval between the upper surface of the guide box. A top plate having an L-shaped cross section to cover, a bottom portion of the guide box, an intake pipe connection hole for supplying combustion air to the combustor, and an exhaust pipe for discharging exhaust gas burned in the combustor. A connection hole is provided, and an intake port corresponding to the intake pipe connection hole of the guide box and an exhaust window corresponding to the exhaust pipe connection hole are provided on the front surface of the top plate. Packing is interposed between the exhaust window and the exhaust port of the exhaust guide, and the intake pipe connection hole communicates with the intake port and the exhaust port and the exhaust window through spaces independent of each other. Since the part and the exhaust part are inside the top plate, the whole device can be made compact and the appearance can be improved. Also,
Since the intake section and the exhaust section are not directly exposed to the outside air, it is not necessary to use a material having high corrosion resistance, and a painted steel plate which does not require a painting step can be used, and the manufacturing cost can be reduced. Further, since the exhaust guide and the guide box are arranged apart from the top plate, heat conduction to the top plate is suppressed, and the temperature rise of the top plate can be further suppressed.

Further, according to the outdoor combustion equipment of the present invention, since the guide box is formed so that the bottom has a downward slope toward the front, the guide box can be moved from the intake section or the exhaust section. Even when rainwater or the like enters inside, it can be guided forward by the inclination of the bottom plate of the guide box, and can be discharged downward along the inner surface of the main body case.

[Brief description of the drawings]

FIG. 1 is a perspective view of an outdoor combustion device according to a first embodiment of the present invention.

FIG. 2 is a front sectional view of the outdoor combustion equipment according to the first embodiment of the present invention.

FIG. 3A is a sectional view taken along line AA of FIG. 2;
(B) is a partial side sectional view taken along line BB.

FIG. 4 is an exploded perspective view of a main part of the outdoor combustion device according to the first embodiment of the present invention.

FIG. 5 is a sectional view showing a conventional outdoor combustion device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Main body case, 2 front panel, 3 top plate, 3a upper surface part, 3b front part, 4 intake port, 5 exhaust window, 6 hot water forward path pipe, 7 hot water return path pipe, 8 guide box, 8a
Bottom plate, 8b first side plate, 9 intake pipe connection hole, 11
Exhaust pipe connection hole, 13 exhaust guide, 13b second side plate, 13d exhaust port, 14 exhaust section, 15 intake section, 16
Blowers, 18 combustors, 19 heat exchangers.

Claims (3)

[Claims] An upper surface of a guide box provided at an upper portion in a main body case and having an open front surface, and an upper surface of the guide box so as to cover a front surface of the guide box and form an interval between the upper surface of the guide box. A top plate having an L-shaped cross section that covers the air conditioner, an intake pipe connection hole for supplying combustion air to a combustor at the bottom of the guide box, and an exhaust gas for discharging exhaust gas after burning in the combustor. In addition to providing a pipe connection hole, an intake port and an exhaust port are provided in the front portion of the top plate so as to communicate with the intake pipe connection hole and the exhaust pipe connection hole of the guide box through spaces independent from each other. Outdoor combustion equipment characterized by that. 2. A guide box provided in an upper part of a main body case and having an open front, and an exhaust provided in the guide box and forming an exhaust passage between the guide box and an exhaust port provided in the front. A cross section L covering the guide, the front surface of the exhaust guide and the front surface of the guide box at the same time, and covering the upper surface of the guide box so as to form an interval between the upper surface of the guide box and
A top plate in the shape of a letter, and at the bottom of the guide box, an intake pipe connection hole for supplying combustion air to the combustor and an exhaust pipe connection hole for discharging exhaust gas after burning in the combustor. At the same time, an intake port corresponding to the intake pipe connection hole of the guide box and an exhaust window corresponding to the exhaust pipe connection hole are provided on the front portion of the top plate, and between the exhaust window and the exhaust port of the exhaust guide. Outdoor combustion equipment characterized in that a packing is interposed between the exhaust pipe and the intake pipe connection hole and the intake port, and the exhaust port and the exhaust window communicate with each other through spaces independent of each other. 3. The outdoor combustion device according to claim 1, wherein the guide box is formed so that a bottom portion has a downward slope toward the front.