JP3503673B2 - Combustion equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water heater having an intake portion and an exhaust portion which are integrally formed with a top plate inside a top plate.

[0002]

2. Description of the Related Art FIG. 5 is a cross-sectional view showing an outdoor combustor of a conventional combustion device disclosed in Japanese Utility Model Laid-Open No. 3-97108, in which 19 is a combustor 21 provided in a main body 28. And a heat exchanger having a heat exchange section 27 and an intake port 4, 2
2 is a cistern tank for storing heated hot water, 23
Is a circulation pump, 24 is a hot water outward pipe, and 25 is a hot water return pipe. Reference numeral 26 is an intake / exhaust tube provided with an intake port 4 and an exhaust port 5 provided on the upper part outside the main body 28.

Next, the operation will be described. In the combustor 21, air is taken in from the intake port 4 to generate combustion gas, and the heat causes the hot water supplied from the hot water return pipe 25 to be heated when passing through the heat exchanging section 27, and heated to a high temperature. Is temporarily stored in the cistern tank 22. Next, the warm water stored in the cistern tank 22 is supplied to the circulation pump 23.
Is supplied to the load by. The combustion gas after heat exchange is discharged from the exhaust port 5.

[0004]

The conventional combustion device is laterally constructed as described above, and the intake and exhaust tubes 26 project from the main body 28, which is unsightly and has a large external dimension.
Since the intake / exhaust cylinder 26 is located outside the main body 28, it is necessary to use stainless steel or the like, which is a corrosion-resistant material, and there is a problem that the number of assembly steps increases and the cost increases.

The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to obtain a combustion device having a good appearance, a compact size, and a high productivity.

[0006]

A combustion device according to the present invention comprises a guide box provided on the upper part of the main body and having a front surface and an upper surface opened, and a top plate having an L-shaped cross section which covers the upper surface and the front surface of the guide box. The guide box is provided with an intake hole for supplying combustion air to the burner and an exhaust hole for exhausting exhaust gas after burning in the burner, and the front part of the top plate is provided with An intake port and an exhaust port that communicate with the intake hole and the exhaust hole of the guide pox via a space independent from each other are provided.

Further, a guide box provided on the upper part of the main body and opening the front and upper surfaces, an exhaust guide box attached to the bottom of the guide box for opening the lower and front surfaces, a front surface of the exhaust guide box and the guide box And a top plate having an L-shaped cross section that covers the upper surface of the guide box so as to form a space between the upper surface of the exhaust guide box and the upper surface of the exhaust guide box, and a burner is burned at the bottom of the guide box. An intake hole for supplying the working air is provided, an exhaust hole for exhausting exhaust gas after burning by a burner is provided at the bottom portion to which the exhaust guide box is attached, and the guide box is provided at a front portion of the top plate. An intake port corresponding to the intake hole and an exhaust port corresponding to the exhaust hole. And it is intended to communicate with each other through the space in which the exhaust hole and the exhaust port is independent of each other.

[0008] Further, a guide box provided on the upper part of the main body to open the front surface and the upper surface, an exhaust guide box attached to the bottom of the guide box to open the lower surface and the front surface, a front surface of the exhaust guide box and the guide box Is connected to a top plate having an L-shaped cross section that covers the upper surface of the guide box while covering the front surface of the exhaust gas and the upper surface of the exhaust guide box, and a burner provided at the bottom of the main body for combustion. An intake pipe for supplying air, and an exhaust pipe connected to a burner for discharging exhaust gas after combustion are provided, and an intake hole to which the intake pipe is connected is provided in the bottom portion of the guide box, An exhaust hole connected to the exhaust pipe is provided in the bottom portion to which the exhaust guide box is attached, and the guide box of the guide box is provided in the front portion of the top plate. An intake port corresponding to the intake hole and an exhaust port corresponding to the exhaust hole are provided, and the top plate is attached to the main body, and at the same time, the intake hole, the intake pipe, the exhaust hole, and the exhaust pipe. Are joined together.

[0009]

DETAILED DESCRIPTION OF THE INVENTION

Embodiment 1. Hereinafter, a first embodiment of a combustion device according to the present invention will be described with reference to the drawings. 1 is a perspective view of a combustion device showing the first embodiment, FIG. 2 is a front sectional view, and FIG.
2 is a cross-sectional view taken along the line AA of FIG. 2, FIG. 3B is a partial cross-sectional view taken along the line BB of 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 case body, 2 is a front panel, 3 is a top plate 3a of a top plate, and 3b and 3a are front faces of the case.
Is a top plate having an L-shaped cross section. 4 Front part 3 of the top plate 3
An inlet port 5 provided at a, an exhaust port 5, an outward pipe 6 for sending heated hot water to a load, and a return pipe 7 for hot water returning from the load.

Reference numeral 8 is a box-shaped guide box which is composed of a bottom plate 8a and first side plates 8b surrounding the rear part and both side parts of the bottom plate 8a. 9 is provided on the bottom plate 8a of the guide box 8,
An intake hole connected to the intake pipe 10 and an exhaust hole 11 connected to the exhaust pipe 12.

Reference numeral 13 encloses the upper plate 13a and the rear portion and both side portions of the upper plate 13a, and the second plate 13 is lower than the height of the first side plate 8b.
Is a box-shaped exhaust guide having an open lower surface and a front surface, and the lower end of the second side plate is attached to the bottom plate 8a of the guide box so as to surround the exhaust hole 11.

Reference numeral 14 is a bottom plate 8a of the guide box and a top plate 3
Is an exhaust portion formed by a passage surrounded by the front surface portion 3b and the exhaust guide box 13, an open exhaust port 5 and an exhaust connection port 11, and 15 is an upper surface portion 3a of the top plate 3 and a front surface portion of the top plate 3. 3b, a passage surrounded by the guide box 8 and the exhaust guide box 13, and an intake portion formed by the intake port 4 and the intake hole 9 opened.

Reference numeral 16 denotes a blower for sending out air taken in through the intake section 15 and the intake pipe 10 to a blow-in pipe 17, 18 for a burner for generating combustion gas by the air and fuel blown from the blow-in pipe 10, and 19 for a load. It is a heat exchanger that heats the returning hot water with combustion gas and sends it to the load.

With the above structure, the upper end of the first side plate 8b 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 connected to the intake port 4 and the exhaust. It is attached to the inside of the front surface portion 3b of the top plate 3 so as to surround the opening 5, and the front end portion of the second side plate 13b is attached to the exhaust port 5
The intake part 15 and the exhaust part 14 are formed by being attached inside the front surface part 3b of the top plate 3 so as to surround the.

If the top plate 3 provided with the exhaust part 15 and the intake part 14 is attached to the case body, the intake pipe 10 and the exhaust pipe 12 provided in the case body 1 are guided at the same time as this attaching operation. The intake pipe joint hole 9 and the exhaust pipe joint hole 11 provided in the box are respectively connected to form an intake / exhaust circuit of the entire combustion device.

In the entire combustion apparatus configured as described above, the air taken in from the intake section 15 by the blower 16 passes through the intake pipe 10 and is blown into the burner 18 to generate combustion gas. Due to this heat, the hot water supplied from the return pipe 7 is heated when passing through the heat exchanger 19, and is supplied from the outward pipe 6 to the load.

The combustion gas after the heat exchange is exhausted from the exhaust pipe 1.
The gas is discharged from the exhaust unit 14 via 2.

In the exhaust guide box 13, the height of the second side plate 13b of the exhaust guide box 13 is lower than the height of the first side plate 8b of the guide box 8, so that the upper plate 13a of the exhaust guide box 13a. And an upper surface portion 3a of the top plate 3 has a gap. That is, the top plate 3 covers the upper surface of the guide box 8 so as to form a gap with the upper surface of the exhaust guide box 23. Therefore, the heat of the exhaust gas is prevented from being transferred to the upper surface portion 3a of the top plate 3, and the air from the intake port 4 enters this gap and the upper surface portion 3 of the top plate 3 is prevented.
a is prevented from being overheated.

Further, the bottom plate 8a of the guide box 8 blocks the heat of the heat exchanger 19 from being transmitted upward.

[0021]

As described above, the combustion apparatus of the present invention is provided at the upper part of the main body, and has a guide box that opens the front and upper surfaces, and a top plate having an L-shaped cross section that covers the upper and front surfaces of the guide box. And an exhaust hole for discharging exhaust gas after burning in the burner and an intake hole for supplying combustion air to the burner at the bottom of the guide box, respectively, in the front portion of the top plate, Since the intake port and the exhaust port communicating with the intake hole and the exhaust hole of the guide pox through the spaces independent from each other are provided,
Since the intake and exhaust parts are inside the top plate, they can be made compact and have a good appearance, and since the intake and exhaust parts are not directly exposed to the outside air, it is necessary to use materials with high corrosion resistance. There is no.

Further, since the exhaust guide box is arranged away from the top plate, it is possible to prevent the top plate from overheating.

Further, a guide box provided on the upper part of the main body and opening the front and upper surfaces, an exhaust guide box attached to the bottom of the guide box and opening the lower and front surfaces, a front surface of the exhaust guide box and the guide box And a top plate having an L-shaped cross section that covers the upper surface of the guide box so as to form a space between the upper surface of the exhaust guide box and the upper surface of the exhaust guide box, and a burner is burned at the bottom of the guide box. An intake hole for supplying the working air is provided, an exhaust hole for exhausting exhaust gas after burning by a burner is provided at the bottom portion to which the exhaust guide box is attached, and the guide box is provided at a front portion of the top plate. An intake port corresponding to the intake hole and an exhaust port corresponding to the exhaust hole. And it is intended to communicate with each other through the space in which the exhaust hole and the exhaust port is independent of each other. Therefore, the intake part and the exhaust part are inside the top plate, which can be made compact and have a good appearance, and the intake part and the exhaust part are not directly exposed to the outside air, so a material with high corrosion resistance is used. You don't have to.

Further, since the exhaust guide box is arranged away from the top plate, it is possible to prevent the top plate from overheating.

Further, a guide box provided on the upper portion of the book and opening the front and upper surfaces, an exhaust guide box attached to the bottom of the guide box and opening the lower and front surfaces, a front surface of the exhaust guide box and the guide box Is connected to a top plate having an L-shaped cross section that covers the upper surface of the guide box while covering the front surface of the exhaust gas and the upper surface of the exhaust guide box, and a burner provided at the bottom of the main body for combustion. An intake pipe for supplying air, and an exhaust pipe connected to a burner for discharging exhaust gas after combustion are provided, and an intake hole to which the intake pipe is connected is provided in the bottom portion of the guide box, An exhaust hole connected to the exhaust pipe is provided in the bottom portion where the exhaust guide box is attached, and a front portion of the top plate is provided in front of the guide box. An intake port corresponding to the intake hole is provided, and an exhaust port corresponding to the exhaust hole is provided, and the top plate is attached to the main body, and at the same time, the intake hole, the intake pipe, the exhaust hole, and the exhaust pipe are Since they are joined together, the assembly can be facilitated.

[Brief description of drawings]

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

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

3 is a sectional view (a) taken along the line AA and a sectional side view (b) taken along the line BB of FIG.

FIG. 4 is an exploded perspective view of essential parts showing the first embodiment of the combustion device according to the present invention.

FIG. 5 is a cross-sectional view showing a conventional combustion device.

[Explanation of symbols]

1 case body, 2 front panel, 3 top plate, 3a upper surface part, 3b front surface part, 4 intake port, 5 exhaust port, 6 outward pipe, 7 return pipe, 8a bottom plate, 8b first side plate, 8
Guide box, 9 air supply hole 11 exhaust hole, 13 exhaust guide box, 13b second side plate, 14 exhaust part,
15 intake, 16 blower, 18 burner, 19 heat exchanger.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Sho 54-25140 (JP, U) Rib 57-46769 (JP, U) Rib 57-150731 (JP, U) Rib 62- 45536 (JP, U) Actual development 4-23962 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F24H 9/02 301

Claims (3)

(57) [Claims] 1. A guide box provided on the upper part of the main body, the front and upper surfaces of which are open, and a top plate having an L-shaped cross section, which covers the upper and front surfaces of the guide box, the bottom of the guide box being burned by a burner. An intake hole for supplying the working air and an exhaust hole for discharging the exhaust gas after being burned by the burner are provided respectively, and the front portion of the top plate is provided with respect to the intake hole and the exhaust hole of the guide pox. And an exhaust port communicating with each other through a space independent from each other. 2. A guide box which is provided on the upper part of the main body and which opens front and upper surfaces, an exhaust guide box which is attached to the bottom of the guide box and which opens lower and front surfaces, and a front surface of the exhaust guide box and the guide box. And a top plate having an L-shaped cross section that covers the upper surface of the guide box so as to form a space between the front surface of the guide box and the upper surface of the exhaust guide box, and a burner is burned at the bottom of the guide box. An intake hole for supplying the working air is provided, an exhaust hole for exhausting exhaust gas after burning by a burner is provided at the bottom portion to which the exhaust guide box is attached, and the guide box is provided at a front portion of the top plate. An intake port corresponding to the intake hole and an exhaust port corresponding to the exhaust hole. And the exhaust hole and the exhaust port communicate with each other through a space independent from each other. 3. A guide box which is provided on the upper part of the main body and which opens front and upper surfaces, an exhaust guide box which is attached to the bottom of the guide box and which opens lower and front surfaces, and a front surface of the exhaust guide box and the guide box. And a top plate having an L-shaped cross section that covers the upper surface of the exhaust guide box so as to form a gap between the upper surface of the exhaust guide box and the upper surface of the exhaust guide box, and is connected to a burner provided at the bottom of the main body for combustion. An intake pipe for supplying air and an exhaust pipe connected to a burner for discharging exhaust gas after combustion are provided, and an intake hole to which the intake pipe is connected is provided in the bottom portion of the guide box, An exhaust hole connected to the exhaust pipe is provided in the bottom portion where the exhaust guide box is attached, and a front portion of the top plate is provided in front of the guide box. An intake port corresponding to the intake hole is provided, and an exhaust port corresponding to the exhaust hole is provided, and the top plate is attached to the main body, and at the same time, the intake hole, the intake pipe, the exhaust hole, and the exhaust pipe are Combustion equipment characterized by being joined together.