JP2953168B2 - Exhaust terminal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust terminal device used for a water heater having a combustion device.

[0002]

2. Description of the Related Art A conventional exhaust terminal device of a water heater has a configuration as disclosed in, for example, Japanese Utility Model Laid-Open No. 60-113415 and Japanese Utility Model Laid-Open No. 60-106065. That is, as shown in FIGS. 3 and 4, the base is fitted into the exhaust pipe 1 extending upward into the top of the combustor 2 such as a water heater, and the straight pipe guide pipe 20 extending the exhaust pipe 1 upward. An umbrella-shaped hood 22 covering the exhaust port 21 with a gap provided at the upper end of the hood 2
2 and a skirt-shaped flange 23 facing each other is attached.

[0003] In the exhaust terminal device having the above structure, the combustion waste gas exhausted from the exhaust pipe 1 is guided to the guide pipe 20 and diffused in the radial direction by the hood 22 from the exhaust port 21 at the upper end of the guide pipe 20. Thereafter, after the direction is once changed downward by the hood 22, it is discharged in the entire circumferential direction from between the flange 23 and the hood 22.

[0004]

Burners such as hot-water heaters are often installed under the eaves of houses where they are not directly exposed to the wind and rain at home. In such a place, in the conventional products that are exhausted radially from the exhaust terminal device because they are close to the house, part of the combustion waste gas hits the outer wall of the house, etc. I have.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a highly practical exhaust terminal device in which an adverse effect on the house side due to exhaust gas can be avoided even at a position close to the house. And

[0006]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
According the invention of claim 1 is to connect the base to the exhaust pipe that opens upward on the top portion of the combustor, and an exhaust guide pipe straight pipe prolonging the exhaust pipe upwards, the whole of the exhaust guide pipe, while the covering and held throughout the appropriate spacing between the exhaust guide pipe, an upper open end of the front surface of the exhaust guide pipe
On the lower level, an outer case with an exhaust window and an outer case
Partitioning the inside of scan in the lower rear space of the front space and the insulation space over to contact the exhaust window, to position the upper side of the exhaust guide pipe above the front space, the exhaust having a rising portion behind the exhaust guide pipe <br /> to adopt a means of Ru and a gas-guide plate.

[0007]

According to the first aspect of the present invention, the combustion waste gas flowing from the exhaust pipe to the exhaust guide pipe is discharged from the exhaust port to the upper front space in the outer case. In the upper front space, the rear side and the lower side are partitioned by an exhaust guide plate, the upper side and the side side are partitioned by an outer case, and the front side is opened to the outside by an exhaust window, so that exhaust is directed forward from the exhaust window. Ri Do to be that performed only behind side and the lower rear space, rise
Insulated by the part.

[0008]

1 is a longitudinal sectional side view of an exhaust terminal device for a combustor showing an embodiment of the present invention, and FIG. 2 is a plan view thereof.

The exhaust terminal device shown in the figure is applied to a combustor 2 having an exhaust pipe 1 opening upward at the top, such as an outdoor hot water heater. An external case 4 for determining an exhaust mode is provided on a straight exhaust guide tube 3 connected to the pipe 1 and extending the exhaust pipe 1 upward.
And an exhaust guide plate 5. At the base end of the exhaust guide pipe 3, an outer fitting flange 6 is formed as a connection structure, which is expanded outward in a skirt shape, and a fitting boss 7 for defining a fitting depth of the exhaust pipe 1 is formed at the fitting portion. Screw holes into which the fixing screws 8 are fitted are formed. The outer case 4 is formed in the shape of a rectangular cylindrical container having an arcuate surface at its top, and is entirely covered with an appropriate space between the exhaust guide pipe 3 and the lower part except the lower part of the exhaust guide pipe 3. I have a lid. The exhaust port 9 at the upper end of the exhaust guide tube 3 faces the top surface of the outer case 4 at an interval in the outer case 4. An exhaust window 10 is opened below the exhaust port 9 on the front surface of the outer case 4.

The exhaust guide plate 5 is provided in the outer case 4 and is a structural member for connecting the exhaust guide tube 3 and the outer case 4 structurally and integrating them as a whole. The inside is connected to the exhaust window 10 and the upper front space 1
1 and a lower and rear space 12 extending behind the upper and lower portions, and a partition and a guide member for guiding exhaust from the exhaust window 10. The rising portion that separates before and after the upper end contacts the inner surface of the top of the outer case 4 and the bottom portion 13 that separates up and down.
Is provided with a downwardly sloping slope, a hole is provided in a part of which the exhaust guide pipe 3 is inserted, and the exhaust guide pipe 3 is connected to the exhaust guide pipe 3 by a screw 14. The front edge of the bottom portion 13 forms a rain shield structure and rides on the lower edge of the exhaust window 10 and is provided outside the exhaust window 10.

The exhaust terminal device having the above structure is attached by connecting a base portion to an exhaust pipe 1 of a combustor 2 and screwing the connection portion to the exhaust pipe 1 to extend the exhaust pipe 1 upward and exhaust the exhaust pipe. To determine. That is, the combustion waste gas flowing into the exhaust guide pipe 3 from the exhaust pipe 1 is
The air is discharged from the exhaust port 9 to the upper front space 11 in the outer case 4. The upper front space 11 is a space in which the rear side and the lower side are defined by the rising portion and the bottom portion 13 of the exhaust guide plate 5, the upper side and the side surface are partitioned by the outer case 4, and the front surface is opened to the outside by the exhaust window 10. Therefore, exhaust is performed only from the exhaust window 10 toward the front. Behind the device, the combustion waste gas is doubly separated by the rising portion and the outer case 4, so that even if it is close to the outer wall of the house, heat does not reach the outer wall. Of course,
Since the exhaust is directed away from the outer wall, the outer wall is virtually free of dirt and deterioration. Furthermore, even if rainwater enters from the exhaust window 10, it is quickly discharged to the outside due to the gradient of the exhaust guide plate 5.

[0012]

As is apparent from the above description of the embodiment, according to the present invention, exhaust is performed only from the exhaust window toward the front, and the back of the device is separated from the combustion waste gas by the outer case. Therefore, even if it is close to the outer wall of the house, the exhaust heat does not reach the outer wall, and the exhaust can be performed so that the outer wall of the house is not stained or deteriorated.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of an exhaust terminal device showing one embodiment of the present invention.

FIG. 2 is a plan view of the exhaust terminal device showing one embodiment of the present invention.

FIG. 3 is a plan view of a conventional exhaust terminal device.

FIG. 4 is a vertical side view of a conventional exhaust terminal device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Exhaust pipe 2 Combustor 3 Exhaust guide tube 4 Outer case 5 Exhaust guide plate 9 Exhaust port 10 Exhaust window

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Go Ichioka 4-1-1-21 Honcho, Nakatsugawa-shi, Gifu Pref. Gifu Kinryo Engineering Co., Ltd. (56) References Jikai Sho 56-33445 (JP, U) 58) Field surveyed (Int. Cl. ⁶ , DB name) F24H 9/02 301 F23L 17/02

Claims (1)

(57) [Claims] 1. A straight pipe-shaped exhaust guide pipe having a base connected to an exhaust pipe opening upward at a top portion of a combustor and extending the exhaust pipe upward, and the exhaust guide pipe as a whole. suitable as well as the covering <br/> holds throughout the interval, and the outer case in the lower than the upper open end of the front surface of the exhaust guide pipe, which opened the exhaust window, the outer casing between the an inner I the front space and the heat-insulating space on which to contact the exhaust window
That partition to the lower rear space to position the upper end of the exhaust guide pipe to the upper front space rising behind the exhaust guide pipe
An exhaust terminal device having a configuration including an exhaust guide plate having a curled portion .