JP2002071125A - Burning appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a burning appliance capable of preventing the outer casing thereof from discoloration, peeling of coating, rust, corrosion and the like by discharging dew condensation water generated by combustion in an exhaust top toward the side of the outer casing thereof using a conduit pipe. SOLUTION: The burning appliance comprises an opening 19 on the top plate 4 of the outer casing 1 thereof, an exhaust top 19A projecting upward from the opening 19 above the top plate 4 for discharging exhaust gas and a conduit pipe 30 for discharging water. The conduit pipe 30 comprises a projecting portion 30A projecting sideways farther than the top plate 4 below the exhaust top 19A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to combustion of a hot water heating heat source unit for supplying heated circulating water to a radiator such as a floor heating panel, a fan convector, a hot water air conditioner indoor unit or a bathroom heating dryer. Equipment related.

[0002]

2. Description of the Related Art Conventionally, this type of combustion equipment is disclosed in, for example, Japanese Patent Application Laid-Open No. 11-37454.
An opening is provided in a top plate of the exterior body, and an exhaust top protrudes above the top plate through the opening.
Then, the combustion exhaust gas generated by the combustion of the burner is discharged into the atmosphere through the exhaust top.

[0003]

However, in the above-described conventional combustion apparatus, when the combustion exhaust gas generated by the combustion of the burner is discharged into the atmosphere from the exhaust top, it reacts with the moisture in the atmosphere. Condensation water is generated. The generated dew water contains sulfur and the like contained in the combustion exhaust gas, and these become acidic substances such as sulfuric acid,
There is a problem in that the top plate and the peripheral side plate are discolored, peeled off, rusted, perforated, etc. on the top plate of the exterior body below the top of the exhaust gas.

[0004] The present invention has been made in view of the above-described circumstances, and condensed water generated at the top of the exhaust gas by combustion is removed.
It is an object of the present invention to provide a combustion apparatus that can prevent discoloration, paint peeling, rust, perforation, and the like from being generated on an exterior body by draining water to a side of the exterior body using a gutter.

[0005]

According to the first aspect of the present invention, an opening is provided in a top plate of an exterior body, and exhaust gas for discharging combustion exhaust gas protruding upward from the opening from the opening is provided. A drain gutter having a top and having a protruding portion projecting laterally from the top plate below the exhaust top is provided.

According to a second aspect of the present invention, in the combustion apparatus according to the first aspect, the projection is provided with a drainage hole.

According to a third aspect of the present invention, in the combustion apparatus according to the first aspect, the width of the gutter is set to be larger than the outer diameter of the exhaust top.

According to a fourth aspect of the present invention, in the combustion apparatus according to the first aspect, the gutter is sandwiched between a lower end portion of the exhaust top and a top plate.

According to a fifth aspect of the present invention, in the combustion apparatus according to the first aspect, the opening is provided in a bulge formed in the top plate.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
4 through FIG. 1 is an external perspective view of a heat source unit for hot water heating to which the present invention is applied, FIG. 2 is an explanatory view for explaining an internal structure, FIG. 3 is an enlarged sectional view of a main part, and FIG. 4 is a plan view of a main part.

The heat source unit A shown in FIG.
A, and has a vertically long box-shaped exterior body (exterior body) 1 having a front panel 3 detachably mounted so as to cover the open surface section 1A. It comprises a gantry 2, a top plate 4 at the top of the fuselage, and a peripheral side plate 5 formed by bending three surfaces into a single plate.

The top plate 4 of the exterior body 1 has a cover member 26, an opening 19 through which the exhaust tube 7A is inserted, and an L-shaped fixing bracket (FIG. 1) for fixing the exhaust top 19A to the top plate 4. Not shown) and a drain gutter 30 arranged below the exhaust top 19A and held between the top plate 4 and the exhaust top 19A.
A donut-shaped bulge 19C having a width of about 80 to 120 mm and a height of about 2 to 3 mm is provided on the top plate 4 around the opening 19 (see FIGS. 3 and 4). Are formed to protrude. As described above, the exhaust pipe 7 </ b> A is disposed substantially at the center of the opening 19.

A heat exchanger 6 made of stainless steel, a muffler 7 connected to an upper portion of the heat exchanger 6, an exhaust pipe 7A provided on the muffler 7,
A circulation pump 8 and the like installed below the heat exchanger 6 are housed.

A control unit 40 for controlling the combustion equipment, a burner 9 such as a petroleum vaporizing burner for heating the heat exchanger 6, and a fuel supply to the burner 9 are provided on the other side of the exterior body 1. Pump 10 and oil leveler 1
1. A reserve tank 12 and the like that are open to the atmosphere are accommodated.

Reference numeral 13 denotes a support mounted on the gantry 2. The heat exchanger 6 is mounted and fixed on the upper surface of the support 13 in an upright state. Is housed.

The heat exchanger 6 has a vertically long cylindrical shape.
A combustion chamber 17 through which the combustion gas of the burner 9 flows is formed inside the inner body 14, and the plurality of smoke tubes 16 are formed in the inner body 14. It passes through the water chamber 18 above the top and is connected to the muffler 7. Further, the muffler 7 is connected to an exhaust top 19A via an exhaust pipe 7A provided in the muffler 7.

In the above configuration, the high-temperature combustion gas generated by the combustion operation of the burner 9 passes through the combustion chamber 17 and the plurality of smoke tubes 16, and the exhaust gas passes through the muffler 7 and the exhaust pipe 7A. It enters 19A and is discharged into the atmosphere.

The gutter 30 has a thickness of about 0.5 to 1.0 m.
m is formed in a horizontal rectangular shape in plan view by drawing on a stainless steel plate having a height of about 8 to
A 15 mm peripheral wall 31 is provided.

The gutter 30 has an opening 1 in the top plate 4.
9, a gutter opening 30C is provided, and a rising wall 32 having a height of about 3 to 5 mm is provided all around the rim of the gutter opening 30C.
The protruding portion 30A is provided by projecting the front end portion in the longitudinal direction from the edge of the short side 4A side of the top plate 4 by a protruding dimension S of about 30 to 50 mm.
The gutter opening 30 </ b> C is provided at a substantially central portion near the base end in the longitudinal direction of the gutter 30. The width L of the gutter 30 in the short direction is set slightly larger than the outer diameter D of the lower portion of the exhaust top 19A.

The projecting portion 30A is provided with a drainage hole 30B substantially at the center of the portion farthest from the top plate 4,
The diameter of the drainage hole 30B is set to about 5 to 10 mm, and the drainage hole 30B has a downward edge 33 by burring so as to improve drainage. .

The gutter 30 constructed as described above is disposed under the exhaust top 19A so that the projection 30A projects sideward from the top plate 4A, and the lower end of the exhaust top 19A. It is sandwiched and fixed between 19B and the top plate 4.

According to the above-described embodiment, the opening 19 is provided in the top plate 4 of the exterior body 1, and the exhaust top 19A for discharging the combustion exhaust gas protruding upward from the opening 19 to the top plate 4 is provided. And a drain gutter 30 provided with a protruding portion 30A protruding laterally from the top plate 4 below the exhaust top 19A.
As shown in FIG. 3, the condensed water X generated at the exhaust top 19A by the combustion of the burner 9 is used as the exhaust top 19A.
Along the gutter 30 below the gutter 30 and is guided by the gutter 30 to the side of the top plate 4 and drained from a drain hole 30B as indicated by an arrow a. Therefore,
It is possible to prevent the top plate 4 and the peripheral side plate 5 from discoloring, peeling off paint, rusting, perforation, and the like due to the dew condensation water X condensed on the exhaust top 19A.

Further, since the gutter 30 has a structure in which a projection 30A projecting from the top plate 4 is provided with a drainage hole 30B, the dew condensation water X generated at the exhaust top 19A is formed.
Has almost no contact with the exterior body 1 of the heat source device A,
Since the water is drained from the drain hole 30B, it is possible to prevent discoloration, paint peeling, rust, perforation, and the like of the exterior body 1 from being generated, and a sharp danger point is formed at the end of the protrusion 30A. Since it is possible not to provide, even in the case of contact with the gutter 30 projecting sideways from the exterior body 1, the danger of making a cut can be avoided beforehand, and safety can be ensured.

Further, since the width L of the gutter 30 in the short direction is set to be larger than the outer diameter D of the exhaust top 19A, most of the dew condensation transmitted through the exhaust top 19A is transferred to the top plate 4. It can be discharged to the side of the exterior body 1 without dripping, and the occurrence of discoloration, coating peeling, rust, perforation, etc. of the exterior body 1 can be reliably prevented.

Further, since the gutter 30 is fixedly held between the lower end 19B of the exhaust top 19A and the top plate 4, the exhaust top 19A is fixed to the top plate 4 so that this exhaust The top 19A can be fixed to the top plate 4 by using the top 19A, so that no special fixing parts or fixing means for fixing the gutter 30 are required.
0 can be fixed to the top plate 4 by a simple operation.

Further, since the opening 19 is provided in the bulging portion 19C formed in the top plate 4, rainwater or the like is provided on the top plate 4 between the top plate 4 and the gutter 30. And the strength of the top plate 4 around the opening 19 can be increased.

It should be noted that the present invention is not limited to the above-described embodiment.
9A may be fixed to the lower end 19B in advance, or may be fixed to the top plate 4 in advance by spot welding or the like.

[0028]

As described above, according to the present invention, an opening is provided in a top plate of an exterior body, and an exhaust top for discharging combustion exhaust gas protruding upward from the opening through the top plate is provided. Since a drain gutter provided with a protruding portion projecting laterally from the top plate below the exhaust top is provided, dew condensation generated at the exhaust top by combustion of the burner is Since it is caught by the gutter below the exhaust top and drained to the side from the top plate, discoloration of the exterior body, paint peeling, rust, and perforation caused by the condensation water generated at the exhaust top Can be prevented, and the durability of the exterior body of this type of combustion equipment can be improved.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a heat source device showing one embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating an internal structure of the heat source unit.

FIG. 3 is an enlarged sectional view of a main part of the same.

FIG. 4 is a plan view of the same main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Exterior main body (exterior body) 4 Top plate 19 Opening 30 Gutter 19A Exhaust top 19B Lower end of exhaust top 19C Swelling part 30A Projection 30B Drainage hole L Gutter width D Outer diameter of exhaust top X Condensation water

Claims (5)

[Claims] An opening is provided in a top plate of an exterior body, and has an exhaust top for discharging combustion exhaust gas protruding above the top plate from the opening, and the top plate is provided below the exhaust top. A combustion device comprising a drain gutter provided with a protrusion protruding more laterally. 2. The combustion apparatus according to claim 1, wherein the projection has a hole for drainage. 3. The combustion apparatus according to claim 1, wherein a width of the gutter is set to be larger than an outer diameter of the exhaust top. 4. The combustion apparatus according to claim 1, wherein the gutter is sandwiched between a lower end of an exhaust top and a top plate. 5. The combustion apparatus according to claim 1, wherein the opening is provided in a bulge formed in the top plate.