JP2953167B2 - 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, a base portion is fitted into an exhaust pipe 1 extending upward into a top portion of a combustor 2 such as a water heater, and a straight exhaust guide pipe extending the exhaust pipe 1 upward. An umbrella-shaped hood 22 is provided to cover the exhaust port 21 at the upper end of the hood 20 with a gap therebetween, and a skirt-shaped guide plate 23 facing the hood 22 is attached to the body of the exhaust guide tube below the hood 22. is there.

[0003] In the exhaust terminal device having the above-described structure, the combustion waste gas exhausted from the exhaust pipe 1 is guided to the exhaust guide pipe 20, and the hood 22 is discharged from the exhaust port 21 at the upper end of the exhaust guide pipe 20.
Are diffused in the radial direction. After this, more food 2
After having been turned downward by the guide plate 2 once, the guide plate 2
3 and the hood 22 are discharged in the entire circumferential direction.

[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
The invention according to claim 1, the combustion machine top section connecting the base to an exhaust pipe that opens upward, the exhaust port opened in the upper end of the exhaust guide pipe straight pipe prolonging exhaust pipe upwards
A cup-shaped hood with an open lower part that covers the upper part with a gap, and almost half of the back side of the lower opening part of the hood is closed.
A tool partition member, and an exhaust guide member protruding to food and radially opposite which is provided on the body portion of the exhaust guide tube that put under the hood, is discharged across the hood from the exhaust port
The combustion waste gas is directed downward through the hood by the exhaust guide member.
A means for exhausting air radially forward is adopted.

[0007]

By adopting the above means, the combustion waste gas flowing from the exhaust pipe into the exhaust guide pipe is discharged from the exhaust port to the entire inside of the hood, and is directed downward in the hood to the partition plate.
And the exhaust guide member exhausts radially forward .

[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. A hood 4 and an exhaust guide plate 5 that determine an exhaust mode are provided on a straight exhaust guide pipe 3 connected to the pipe 1 and extending the exhaust pipe 1 upward. At the base end of the exhaust guide tube 3, a cover 6 expanded in a skirt shape together with a connection structure.
The fitting portion is formed with a positioning step 7 for defining a fitting depth of the exhaust pipe 1 and a screw hole for fitting a fixing screw 8. The hood 4 is formed in the shape of a cup-shaped container having an open lower part, and an exhaust port 9 at the upper end of the exhaust guide pipe 3 is entirely spaced from the exhaust guide pipe 3 by a gate-shaped mounting member 10 at an appropriate distance. It is covered so that it can be done. The exhaust port 9 of the exhaust guide tube 3 faces the top surface of the hood 4 at an interval in the hood 4. In the hood 4, a partition member 11 that closes an opening approximately half below the rear side is attached at a position where it enters slightly from the lower end. The exhaust guide plate 5 protrudes from the body of the exhaust guide pipe 3 below the hood 4 in the radial direction so as to face the hood 4.

The exhaust terminal device having the above structure is fitted 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 entire inside of the hood 4. However, since the space inside the hood 4 communicates with the outside only on the front side and the rear side is closed by the partition member 11, exhaust is performed only in the front. Therefore, even if it is close to the outer wall of the house, the air is exhausted in a direction away from the outer wall, so that the outer wall is practically not dirty or deteriorated by heat.

[0011]

As is apparent from the above description of the embodiment, according to the present invention , the flow from the exhaust pipe to the exhaust guide pipe is achieved.
The combustion waste gas that has entered is discharged from the exhaust port to the entire inside of the hood.
And the partition plate and exhaust guide member
Exhausts radially forward, so even if it is close to the outer wall of the house, the outer wall of the house becomes dirty or deteriorates due to heat .
The exhaust with less pressure loss is realized without any trouble .

[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 Hood 5 Exhaust guide plate 9 Exhaust port 11 Partition member

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kinzo Suzuki 3-40 Tegano Shimogane, Nakatsugawa City, Gifu Prefecture Mitsui Electric Engineering Co., Ltd. Nagoya Works Nakatsugawa branch office (56) References Shokai Sho 61 −101239 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F24H 9/02 301 F23L 17/02

Claims (1)

(57) [Claims] 1. A base is connected to an exhaust pipe opening upward at the top of the combustor, and a gap is maintained above an exhaust port opened at an upper end of a straight tubular exhaust guide pipe extending the exhaust pipe upward. a cup-shaped hood which opens downward for covering Te, and the partition member for closing approximately half behind side of the opening portion of the lower side of the hood, and the hood and face the body of the exhaust guide tube below the above hood An exhaust guide member that is provided in the radial direction and is provided from the exhaust port.
The combustion waste gas discharged to the entire inside of the hood is
The exhaust guide member exhausts radially forward.
Smooth exhaust terminal device.