JPS6231759Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an emergency gas dissipation device that releases heatable gas into the atmosphere from a tank or gas pipe in the event of an emergency such as an earthquake or fire.

If a major earthquake or fire occurs and gas remains in a gas tank or gas pipe buried underground, if a crack occurs in the gas tank or gas pipe, the gas inside will leak and ignite, resulting in a large-scale fire. It could be a disaster.

Therefore, in the event of an earthquake of a certain seismic intensity or higher or a fire occurring near a gas tank, the gas from the gas tank or gas pipe can be pumped into the atmosphere from the top of a dissipation tower several tens of meters high before the gas leaks. It is possible to prevent accidents by dissipating it.

However, the gas in the gas tank or gas pipe is at a fairly high pressure, so if it is released directly into the atmosphere from the emission tower, it will generate a lot of noise inside the emission tower, and residents near the emission tower may be harmed by the noise. become.

In view of these points, the present invention was made with the purpose of providing an emergency gas dispersion device that can remove gas from a dispersion tower after removing gas noise. 2 cylindrical radiation towers, and 1 erected on the supporting surface so as to form an almost equilateral triangle in plane with these two radiation towers.
A main support, a member that interconnects these two diffusion towers and one support, a rectifier installed at the lower end of the diffusion cylinder and connected to the gas supply pipe, and a rectifier for connecting the rectifier to the gas supply pipe. A silencer is provided in the upper diffusion tower and includes a cylindrical absorbing material that absorbs the noise of the gas discharged from the rectifier into the diffusion tower, and the rectifier and the silencer reduce the gas noise. It is designed to be removed and then dissipated into the atmosphere.

The present invention will be explained below with reference to embodiments shown in the drawings.

Figure 1 shows the entirety of the present invention, in which two radiation towers 1, 1 and one cylindrical column 2 are mounted on the ground surface, which is the supporting surface, on foundations 3, 3, respectively, approximately in plane. It is erected to form an equilateral triangle. The two diffusion towers 1, 1, one of which diffuses gas from the gas pipe,
The other one is for dissipating gas from a gas tank or gas pipe. These emission towers 1,
Support plates 4,
4... are stretched, and one of these supporting plates 4
A fence 5 is placed around each landing, and a landing 6
A ladder 7 is provided from the ground to each landing 6 for people to go up and down. In addition, metal braces 8, 8 are provided between the diffusion towers 1, 1 and the pillars 2.
...is posted.

Each of the diffusion towers 1 is made up of steel pipes 9, 9, .
The steel pipe 9c has a slightly larger diameter than the other steel pipes 9c.

A gas supply pipe 12 connected to a gas tank or gas pipe (not shown) enters into the steel pipe 9a from the lower end of the lowermost steel pipe 9a. A gas supply pipe 12 within this steel pipe 9 stands upward, and its tip is closed, and a large number of small diameter holes for gas release are bored around the outer periphery of the tip, thereby forming the rectifier 10. The rectifier 10 is designed to rectify the turbulent flow of gas flowing through the gas supply pipe 12, thereby reducing noise. Further, a protective cylinder 13 is provided throughout the inner circumferential surface of the steel pipe 9a.
Glass wool 14, which is a sound-absorbing material supported by the sound absorbing material, is arranged in a cylindrical shape to further reduce noise.

A steel pipe 9b is connected to the upper end of the steel pipe 9a, and the silencer 11 is installed in each steel pipe 9b.
is installed. As shown in detail in FIG. 2, this muffler 11 has a cylindrical body 15 made of, for example, a punching plate made of stainless steel, in which a large number of small diameter holes 16, 16... are bored throughout the entire area. Reinforcing flanges 17, 17 having a diameter somewhat smaller than the inner diameter of the steel pipe 9b are attached to both ends of the cylindrical body 15. The small-diameter hole 16 of the cylinder 15 is used to emit gas noise to the outside and to protect a sound absorbing material 18, which will be described later, from the gas pressure.

A wire mesh 18 is wound single or double over almost the entire outer circumference of the cylindrical body 15, and the outer circumference of the wire mesh 18 is further covered with a sound absorbing material 19 such as glass wool formed into a cylindrical shape. . The wire mesh 18 is for preventing the sound absorbing material 19 from being attracted by the gas pressure and peeling off. Further, the outer periphery of the sound absorbing material 19 is covered and protected by an outer cylinder 20 made of a relatively thin iron plate.

Returning to FIG. 1, the above-described muffler 11 has a flange 21 between the steel pipe 9b and the steel pipe 9c above the steel pipe 9b.
After the steel pipe 9c is removed from the steel pipe 9c, it is inserted into the steel pipe 9b as one unit. Also, silencer 1
1 is replaced in the same manner. Further, the upper end of the steel pipe 9b is always closed by a lid 22 that can be opened and closed, so that the sound absorbing material 19 of the muffler 11 and the like are not deteriorated by rainwater or the like. The lid 22 is opened by the pressure of the gas when dissipating the gas.

Next, the operation of the embodiment described above will be explained.

In an emergency such as an earthquake, if it is determined that it is better to release gas from a gas tank or gas pipe (not shown) into the atmosphere, opening the valve (not shown) installed in the gas supply pipe 12 will release high pressure. gas is discharged from the gas supply pipe 12 through the rectifier 10 into the steel pipe 9a. At this time, the turbulent flow of gas is caused by the rectifier 10
When passing through the small-diameter holes, the flow is rectified and the noise is reduced. Then, the sound is absorbed by the sound absorbing material 14 within the steel pipe 9a, further reducing the noise.

Next, as the gas passes through the steel pipe 9b,
The noise is further absorbed by the sound-absorbing material 19 of the silencer 11 inside the steel pipe 9b, and the pressure pushes up the lid 22 at the upper end of the uppermost steel pipe 9c, causing the noise to be released into the atmosphere without causing harm to residents.
However, the upper end of the steel pipe 9c is at a considerable height above the ground, and the gas spouts upward from the upper end of the steel pipe 9c, so even if the gas diffused from the steel pipe 9c reaches the source of the fire on the ground, it is extremely diluted by that time and there is no risk of it catching fire. Therefore, secondary disasters such as gas explosions can be prevented in advance.

In addition, if a parabolic antenna is installed on the top landing 6, etc., it can also be used for communication in the event of a disaster.

As explained above, the emergency gas dispersion device according to the present invention includes a cylindrical dispersion tower installed upright on a support surface, and a cylindrical dispersion tower installed at the lower end of the dispersion tower and connected to a gas supply pipe. and a muffler provided in the stripping tower above the straightener and equipped with a cylindrical absorber that absorbs the noise of the gas released from the straightener into the stripping tower. Therefore, since the gas is released from the dispersion tower after removing the gas noise, it not only prevents secondary disasters, but also has the excellent effect of preventing local residents from being harmed by the noise caused when the gas is dissipated. .

In addition, this idea consists of two radiation tubes, one pillar installed on a support surface so as to form an almost equilateral triangle in plane with these two radiation towers, and one pillar with these two radiation towers. Since it includes a member that interconnects the support columns, the radiation tube can be stably erected.

In addition, the silencer of this invention includes a metal cylindrical body with a large number of small holes, a flange attached to both ends of the cylindrical body, a wire mesh wound around the outer periphery of the cylindrical body, and A sound absorbing material coated around the outer periphery of the wire mesh,
Since the outer periphery of the sound absorbing material is covered with a metal outer periphery, it can be removably housed in the radiation tube, making it easy to replace the muffler.

[Brief explanation of the drawing]

FIG. 1 is a partially longitudinal sectional front view showing an embodiment of an emergency gas dissipation device according to the present invention, and FIG. 2 is an enlarged sectional view of the silencer shown in FIG. 1. 1...Radiation tower, 2...Strut, 9...Steel pipe, 10
... Rectifier, 11 ... Silencer, 12 ... Gas supply pipe, 14 ... Sound absorption material, 15 ... Cylindrical body, 18 ... Wire mesh, 19 ... Sound absorption material, 20 ... Outer cylinder.

Claims (1)

[Claims for Utility Model Registration] Two cylindrical radiation towers erected on a support surface, and one cylindrical radiation tower erected on the support surface so as to form an approximately equilateral triangle in plane with these two radiation towers. a support column, a member that interconnects these two diffusion towers and one support column, a rectifier installed at the lower end of the diffusion tower and connected to the gas supply pipe, and an upper part of the rectifier. a silencer disposed in the diffusion tower to absorb the noise of the gas discharged from the rectifier into the diffusion tower, the silencer being a metal cylinder having a large number of small holes. , flanges attached to both ends of the cylindrical body, a wire mesh wound around the outer periphery of the cylindrical body, a sound absorbing material coated on the outer periphery of the wire mesh, and a metal coated on the outer periphery of the sound absorbing material. What is claimed is: 1. An emergency gas dissipation device, comprising: an outer cylinder, and is detachably housed in the dissipation cylinder.