JPS61153408A - Top of exhaust cylinder - Google Patents

Abstract

PURPOSE:To lower the temperature of high temperature exhaust gas by making drain holes are cut and raised slantingly in a bottom of middle plate. CONSTITUTION:High temperature exhaust gas passes through the exhaust pipe 1 which connects to the exhaust port of a hot-water supplier and the flow direction of gas rotates successively by a top plate 2 and a middle plate 3 and the gas diffused. After passing through the middle plate 3, the gas is mixed with surrounding fresh air and its temperature becomes low and is discharged into the air through the opening of case 5. When high temperature exhaust gas of which direction is rotated by the top plate 2 collides against the middle plate 3, a part of the gas blows out slantingly from drain holes 6 due to the shape of holes cut and raised slantingly. Therefore, ceiling temperature of hot water supplier does not rise and rain water gathered in the middle plate 3 is easily drained out. As a result, it is possible to make proper atmospheric air temperature surrounding the bottom part of exhaust cylinder and reduce largely high temperature of gas by diluting with air.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an exhaust stack top of an outdoor open water heater.

2. Description of the Related Art Conventionally, this type of exhaust pipe top has had a structure as shown in FIG. That is, high-temperature exhaust gas flows through the exhaust pipe 1 connected to the exhaust port of the water heater, and while its flow direction is turned by the soil plate 2 and middle plate 3, it mixes with low-temperature air and becomes low-temperature exhaust gas, which is then released from the open lower part of the case 5. released into the atmosphere. At this time, the middle plate 3 was provided with a drainage hole 4 at the bottom so that rainwater could easily collect therein.

Problems to be Solved by the Invention However, with this structure, high-temperature exhaust gas blows out directly below from the drain hole 4, causing an abnormal rise in the temperature of the top plate of the water heater, etc. The atmospheric temperature around the bottom of the cylinder top rose, making it less effective to mix with high-temperature exhaust gas and lower the temperature.

Means for Solving the Problems and In order to solve the problems mentioned above, in the present invention, the middle plate 3
The drainage hole at the bottom is cut out and raised.

As a result, the hot gas that blows out from the drain hole does not blow out directly below, but is dispersed horizontally.Meanwhile, the hot gas that blows out from the water heater does not heat up the top plate of the hot water heater, etc. The exhaust gas rises through the gap between the exhaust gas and the middle plate 3, mixes in case 5.1:, and is released into the atmosphere, so the temperature around the bottom of the exhaust stack does not rise, and the exhaust gas is sufficiently mixed with low-temperature air before being released. It is something that will be done.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIG. In FIG. 1, 1 is an exhaust pipe connected to the exhaust port of a water heater, etc.; 2 is an inverted bowl-shaped upper plate provided opposite the outlet of the exhaust pipe 1;
Reference numeral 3 denotes an intermediate plate provided opposite to the upper plate 2 and in close contact with the outer periphery of the exhaust pipe 1, and a plurality of cut-and-raised holes 6 for draining water are provided at the bottom of the intermediate plate. Reference numeral 5 denotes a case that covers the entire body, and a number of opening lowers for blowing out exhaust gas are provided on the side.

Next, the operation of the configuration of this embodiment will be explained.

First, high-temperature exhaust gas passes through the exhaust pipe 1 connected to the exhaust port of a hot water heater, etc., is diffused by the upper plate 2 and the middle plate 3 while sequentially changing direction, and after exiting the middle plate 3 is released into the surroundings. The low-temperature exhaust gas is mixed with fresh air and released into the atmosphere from the open lower part of the case 5. When the high-temperature exhaust gas whose direction has been turned by one side and plate 2 collides with the middle plate a, a part of it blows out from the cut-and-raised hole 6 for water drainage, but because it is a cut-and-raised hole, it does not blow out directly below. The temperature of the top plate of a water heater or the like does not rise, and rainwater accumulated in the middle plate a can be easily drained.

Effects of the Invention In the present invention, since the drain hole provided at the bottom of the middle plate 3 is cut and raised, high-temperature exhaust gas does not blow out directly below, and (1) the temperature of the top plate of the water heater, etc. is prevented from abnormal. There is no way to raise it. (2) Since the atmospheric temperature around the lower part of the exhaust stack does not rise excessively, the high-temperature gas can be sufficiently diluted and the temperature can be lowered.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an exhaust stack top showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing a conventional exhaust stack top. 1...exhaust pipe, 2...and board, 3...
... middle plate, 5 ... case, 6 ... cut-and-raised hole for draining water, 7 ... group opening.

Claims (1)

[Claims] an exhaust pipe; an upper plate provided opposite the outlet of the exhaust pipe;
The exhaust pipe consists of a middle plate provided opposite to the upper plate and in close contact with the outer periphery of the exhaust pipe, a cut-and-raised hole for draining water provided at the bottom of the middle plate, and a case that covers the whole and has an opening. cylinder top.