JPH0625635Y2 - Exhaust system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to, for example, an exhaust device connected to an emergency diesel engine, etc., and particularly prevents rainwater, dust, etc. from entering and provides it to the neighborhood. The present invention relates to an exhaust device that reduces the influence.

(Prior Art) A conventional exhaust device is configured, for example, as shown in FIG. This exhaust system is, for example, connected to an emergency diesel engine installed in a basement of a building and installed on the roof of the building.

First, there is a muffler 101, and a bent exhaust pipe 107 is connected to the muffler 101 via flanges 103 and 105. Exhaust gas discharged from the diesel engine is discharged outdoors via the muffler 101 and the bent exhaust pipe 107.

The front end of the bent exhaust pipe 107 has a shape that is cut off obliquely downward in order to prevent intrusion of rainwater, dust and the like.

(Problems to be Solved by the Invention) According to the above conventional configuration, there are the following problems.

First, since the tip of the bent exhaust pipe 107 is directed obliquely downward and the exhaust gas accompanied with noise is discharged obliquely downward, it greatly affects the neighborhood.

In particular, when a building is forested, the exhaust gas with noise collides with the wall of the neighboring building, which amplifies the noise and stains the outer wall. There was a problem.

Further, since there is only one outlet for exhaust gas, there is a problem that if strong wind blows from that direction, exhaust resistance increases and exhaust performance deteriorates.

The present invention has been made in view of the above circumstances, and provides an exhaust device that can reduce the influence on neighboring areas while maintaining the function of preventing rainwater, dust, etc. from entering, and that is not easily affected by strong winds. The purpose is to do.

(Means for Solving the Problem) In order to achieve the above object, an exhaust device according to the present invention is a vertical pipe connected to a muffler and having an upper end as an opening, and a vertical pipe connected to the upper end of the vertical pipe to close both ends. A horizontal outer pipe, a horizontal inner pipe concentrically arranged inside the horizontal outer pipe and closing both ends thereof, and having openings, and a horizontal inner pipe concentrically arranged inside the horizontal outer pipe and having openings An exhaust pipe having both ends of the horizontal inner pipe and both ends of the horizontal outer pipe formed as upward exhaust ports is provided.

At that time, it is conceivable to install a sound absorbing means outside the horizontal outer tube so that the sound absorbing material of the sound absorbing means absorbs noise generated during exhaust.

(Operation) The exhaust gas discharged from the muffler is discharged into the horizontal outer pipe through the vertical pipe and the opening of the vertical pipe. The exhaust gas discharged into the horizontal outer pipe flows between the horizontal outer pipe and the horizontal inner pipe, and flows into the horizontal inner pipe through the opening of the horizontal inner pipe.

The exhaust gas flowing into the horizontal inner pipe flows into the exhaust pipe through the opening of the exhaust pipe and is discharged upward through the pair of exhaust ports of the exhaust pipe.

Since the exhaust gas is discharged upward, it does not have a great influence on the neighborhood as in the case where the exhaust gas is discharged downward.

At that time, rainwater, dust, and the like enter the exhaust pipe, but do not enter further.

When the sound absorbing means is provided outside the horizontal outer tube, the sound absorbing material of the sound absorbing means can reduce the noise generated during the exhaust.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a side view showing a partially cutaway exhaust device according to this embodiment, and FIG. 2 is a sectional view taken along line II-II of FIG.

First, there is a muffler 1, and a vertical pipe 7 is connected to the muffler 1 via flanges 3 and 5. The tip of this vertical tube 7 is shaped like a mountain,
The opening 8 is formed.

A horizontal outer tube 9 is fixed to the vertical tube 7. Both ends of the horizontal outer tube 9 are closed by disks 11 and 13. A horizontal inner pipe 15 is concentrically arranged inside the horizontal outer pipe 9. Both ends of the horizontal inner pipe 15 are closed by blind flanges 17 and 19. The horizontal inner pipe 15 is fixed to the horizontal outer pipe 9 via the blind flanges 17 and 19.

An opening 21 is formed at the upper end of the horizontal inner pipe 15. The exhaust gas discharged from the vertical pipe 7 already described flows into the horizontal inner pipe 15 through the opening 21.

An exhaust pipe 23 is concentrically arranged inside the horizontal inner pipe 15. Both ends of this exhaust pipe 23 are flanges 1
7 and 19, the disks 11 and 13 are penetrated and exposed to the outside to form exhaust ports 25 and 27. These exhaust ports 2
Reference numerals 5 and 27 are formed obliquely upward.

An opening 29 is provided at the upper end of the exhaust pipe 23 and in the middle.
Are formed. The exhaust gas flowing into the horizontal inner pipe 15 flows into the exhaust pipe 23 through the opening 29, and is discharged to the outside through the exhaust ports 25 and 27 at both ends.

A drain pipe 31 is connected to the lower end of the disc 11.

The operation will be described based on the above configuration.

Exhaust gas discharged from the emergency diesel engine installed in the basement of the building is discharged into the horizontal outer pipe 9 through the muffler 1, the vertical pipe 7, and the opening 8. Horizontal outer tube 9
The exhaust gas discharged into the inside is the horizontal outer pipe 9 and the horizontal inner pipe 15.
And flows upwards and flows into the horizontal inner pipe 15 through the opening 21.

The exhaust gas flowing into the horizontal inner pipe 15 flows into the exhaust pipe 23 through the opening 29, and is discharged obliquely upward through the exhaust ports 25 and 27 at both ends.

In such a series of exhaust action, first, the exhaust gas is discharged obliquely upward through the exhaust ports 25 and 27, so that it does not affect the neighborhood much. Specifically, since the exhaust gas does not stay in the lower portion but scatters quickly in the upper portion, air pollution can be prevented. In addition, noise is amplified due to the collision of exhaust gas with adjacent buildings,
It is less likely to stain the outer wall.

Further, even if rainwater, dust, or the like enters through the exhaust ports 25 and 27, since the flow path connecting to the horizontal outer pipe 9 and the horizontal inner pipe 15 is bypassed, it will not invade further. .

As described above, according to this embodiment, the following effects can be obtained.

First, the influence on the neighborhood can be reduced. This is because the exhaust ports 25 and 27 of the exhaust pipe 23 are directed obliquely upward so that the exhaust gas is discharged obliquely upward.

In addition, since the exhaust ports 25 and 27 are directed obliquely upward,
Rainwater, dust, etc. will enter the exhaust pipe 23,
No more intrusions.

Further, since the two exhaust ports 25 and 27 are provided, even if a strong wind blows from one side and the exhaust resistance becomes large, it is possible to exhaust from the other exhaust port, so that the exhaust efficiency is greatly improved. There is no such thing as a drop.

Next, a second embodiment will be described with reference to FIG. In the case of this embodiment, the sound absorbing means 33 is provided on the outer periphery of the horizontal outer tube 9. The sound absorbing means 33 includes an outer wall 35 and a sound absorbing material 37 filled inside the outer wall 35. As the sound absorbing material 37, for example, glass wool is used. The horizontal outer tube 9 is porous.

In the case of this embodiment, it is possible to obtain the same effect as in the case of the first embodiment, and it is possible to reduce the noise by absorbing the noise during exhaust with the sound absorbing material 37.

The present invention is not limited to the above embodiments.

For example, there are various possibilities of setting the exhaust ports 25, 27 upward, and in an extreme case, it may be considered that the exhaust ports 25, 27 are completely upward.

The positions, sizes, and numbers of the openings 21 of the horizontal inner pipe 15 and the openings 29 of the exhaust pipe 23 are not particularly limited.

(Effects of the Invention) As described in detail above, according to the exhaust device of the present invention, it is possible to reduce the influence on the neighborhood while maintaining the function of preventing rainwater, dust, and the like from entering.

Further, when the sound absorbing means is provided, noise generated during exhaust can be reduced.

[Brief description of drawings]

1 and 2 are views showing a first embodiment of the present invention. FIG. 1 is a side view showing a partially cutaway exhaust device, and FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a side view showing the exhaust system according to the second embodiment with a part cut away, and FIG. 4 is a side view of a conventional exhaust system. 1 ... Muffler 7 ... Vertical pipe 9 ... Horizontal outer pipe 15 ... Horizontal inner pipe 21 ... Horizontal inner pipe opening 23 ... Exhaust pipe 25, 27 ... Exhaust port 29 ... Exhaust pipe opening 33 ... Sound absorbing means 37 ... Sound absorbing material

Claims (2)

[Scope of utility model registration request] 1. A vertical pipe connected to a muffler and having an upper end opening, a horizontal outer pipe connected to the upper end of the vertical pipe and closed at both ends, and concentrically arranged inside the horizontal outer pipe. A horizontal inner pipe having both ends closed and an opening, and an opening arranged concentrically inside the horizontal inner pipe and having both ends penetrating both ends of the horizontal inner pipe and both ends of the horizontal outer pipe. And an exhaust pipe that is an upward exhaust port,
An exhaust device comprising: 2. The exhaust system according to claim 1, wherein a sound absorbing means is provided outside the horizontal outer tube, and the sound absorbing material of the sound absorbing means absorbs noise generated during exhaust. Exhaust system.