KR101316841B1

KR101316841B1 - Compressed gas relif apparatus for vehicle

Info

Publication number: KR101316841B1
Application number: KR1020100125546A
Authority: KR
Inventors: 황기호
Original assignee: 현대자동차주식회사
Priority date: 2010-12-09
Filing date: 2010-12-09
Publication date: 2013-10-10
Also published as: KR20120064355A

Abstract

The present invention relates to a compressed gas safety discharge device for a vehicle, comprising: a multistage exhaust line communicating with a gas storage tank, the length of which is provided to extend; And an exhaust pipe stopper provided at one end of the multi-stage exhaust line. In a simple configuration, compressed gas in the vehicle may be safely discharged in an emergency such as a fire of the vehicle.

Description

Compressed gas safety exhaust device for vehicles {COMPRESSED GAS RELIF APPARATUS FOR VEHICLE}

The present invention relates to a safe compressed gas discharge device for a vehicle, and more particularly to a safe compressed gas discharge device for a vehicle that can safely discharge the compressed gas in the vehicle during an emergency such as a fire of the vehicle.

In general, high pressure vessels are legislated to apply a pressure relief device (PRD) to the gas inlet and outlet of the tank to prevent rupture of the vessel in case of fire. In addition, the SAE proposes to position the direction of hydrogen exhaust in the downward or upward direction of the vehicle, and the exhaustion in the horizontal direction with the vehicle has a possibility to pose a danger to the surroundings.

In general, the fire of the vehicle is more likely to be in a standing position than the vehicle is overturned and upside down.When the hydrogen is exhausted under the vehicle, the hydrogen that is released affects the flames, which may additionally heat the tank or promote fire. It is known that a more safe system can discharge upward.

In a paper fire-tested by Swain for a comparative analysis of the risks between hydrogen and gasoline vehicles, a safety vehicle was created by forcing a hydrogen flame during hydrogen venting by constructing a PRD exhaust line at the top of the vehicle.

However, there was no mention of the specific structure for the hydrogen vent piping, as the hydrogen flame was made after the upstream configuration of the hydrogen exhaust pipe, not the actual fire.

Therefore, the present invention has been created to solve the above problems, the object of the present invention is that the PRD is activated by the vehicle fire is safe when the gas inside the high-pressure gas tank is discharged to the outside of the vehicle It is to provide a safe vehicle compressed gas discharge device suitable for the package.

The present invention can be safely discharged to the outside when the high pressure gas is ejected from the pressure discharge device is applied to prevent the burst of the pressure vessel when the pressure vessel used in the mobile means and stationary type such as automobiles are exposed to a fire situation It is to provide a safe compressed gas discharge device for vehicles.

Safe gas discharge device for a vehicle according to an embodiment of the present invention for achieving this object is a multi-stage exhaust line communicating with the gas storage tank and the length thereof is provided to extend; And an exhaust pipe stopper provided at one end of the multistage exhaust line.

An emergency gas discharge valve may be provided between the gas storage tank and the multistage exhaust line.

The multi-stage exhaust line may include a plurality of exhaust lines, and the exhaust line may have a stepped portion extending inward at an outer end thereof and a stepped portion extended outward at an inner end thereof.

The exhaust pipe plug may be separated from the last exhaust line after the plurality of exhaust lines are extended when the emergency gas discharge valve is opened.

The compressed gas safety discharge device for a vehicle may be disposed toward an upper portion of the vehicle.

The multi-stage exhaust line includes a plurality of exhaust lines, and the exhaust line may be formed in a tapered shape so that the diameter of one end thereof is small.

As described above, according to the vehicle compressed gas safety discharge device according to the embodiment of the present invention, even if the flame does not reach the extended exhaust pipe even in the burning condition of the vehicle, it is possible to prevent the secondary fire from the exhausted hydrogen to add safety. have.

1 is a view showing the configuration of a safe vehicle exhaust gas discharge apparatus according to an embodiment of the present invention.
2 is a view showing that the vehicle compressed gas safe discharge device according to an embodiment of the present invention is mounted on the vehicle body;
3 is a view for explaining the emergency operation of the vehicle compressed gas safe discharge device according to an embodiment of the present invention.
4 is a view for explaining the emergency operation when the vehicle compressed gas safety discharge device according to an embodiment of the present invention is installed in the vehicle body;
5 is a diagram showing the configuration of a vehicle safety gas discharge apparatus according to a modification of the embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the configuration of a vehicle compressed gas safety discharge device according to an embodiment of the present invention, Figure 2 is a view showing that the vehicle compressed gas safety discharge device according to an embodiment of the present invention is mounted on the vehicle body.

3 is a view for explaining the emergency operation of the vehicle compressed gas safety discharge device according to an embodiment of the present invention, Figure 4 is an emergency operation when the vehicle compressed gas safety discharge device according to an embodiment of the present invention is installed in the vehicle body It is a figure explaining

1 to 4, the safe compressed gas discharge apparatus for a vehicle according to an embodiment of the present invention is in communication with the gas storage tank 50, the multi-stage exhaust line 10 and the multi-stage exhaust that is provided to extend the length The line 10 includes an exhaust pipe stopper 30 provided at one end.

An emergency gas discharge valve 40 may be provided between the gas storage tank 50 and the multistage exhaust line 30.

The multistage exhaust line 30 includes a plurality of exhaust lines 12, 14, 18, and 22, and the exhaust lines 12, 14, 18, and 22 have stepped portions 13, 15, and 19 at their outer ends. ) Is formed to extend inwardly, and the stepped portions 16, 20, and 24 are formed to extend outwardly at one end thereof.

The exhaust pipe plug 30 may include the plurality of exhaust lines 12, 14, 18, after the plurality of exhaust lines 12, 14, 18, and 22 are extended when the emergency gas discharge valve 40 is opened. It is separated from the last exhaust line 22 of 22).

The compressed gas safety discharge device for a vehicle may be disposed toward an upper portion of the vehicle 60.

1 to 4, the operation of the vehicle compressed gas safety discharge device according to the embodiment of the present invention will be described. In the normal state of the vehicle, the emergency gas discharge valve 40 maintains the closed state.

In an emergency situation such as a fire, the emergency gas discharge valve 40 is opened to discharge the gas of the gas storage tank 50.

The gas herein refers to various kinds of gases including hydrogen, natural gas, and the like, used as fuel of a vehicle.

When the emergency gas discharge valve 40 is opened, after the plurality of exhaust lines 12, 14, 18, and 22 are extended by the pressure of the gas, the exhaust pipe stopper 30 is connected to the plurality of exhaust lines 12. And 14, 18, and 22 are separated from the last exhaust line 22.

The combination of the exhaust pipe stopper 30 and the distal exhaust line 22 is the exhaust pipe stopper 30 after the plurality of exhaust lines 12, 14, 18, 22 are extended by the pressure of the gas. Are combined at the strength determined by the experiment to separate from the distal exhaust line 22.

As shown in Figures 1 and 3, the safe compressed gas discharge apparatus for a vehicle according to an embodiment of the present invention is the multi-stage exhaust line 10 by the step (13, 15, 16, 19, 20, 24) configuration ) Is extended above the vehicle, the gas is exhausted in the upward direction of the vehicle in an emergency, and the safety from the secondary fire by the gas discharge can be ensured.

That is, the end of the gas exhaust pipe facing upward of the vehicle is designed in the shape of an antenna so that when the gas is discharged from the tank by the fire, the pipe is extended to the outside of the vehicle by the pressure of the emitted gas. Is located above the roof of the vehicle. Therefore, no flame is formed in the emitted gas and is safely discharged to the outside.

If the gas is exhausted upward from the vehicle roof under burning conditions, the fire pillar may go up to 10m or more, which may cause enormous damage to infrastructure facilities such as high voltage lines. There is a need.

Since long pipes cannot be exposed to the outside of the roof of the vehicle package, the design of the present invention can be applied to the vehicle to maintain the appearance.

5 is a diagram showing the configuration of a vehicle safety gas discharge apparatus according to a modification of the embodiment of the present invention.

Referring to FIG. 5, the multistage exhaust line 100 may include a plurality of exhaust lines 110, 120, and 130, and the exhaust lines 110, 120, and 130 may be formed in a tapered shape so that the diameter of one end thereof is small.

When the emergency gas discharge valve 40 is opened, the exhaust pipe stopper 30 is separated from the last exhaust line 110 among the plurality of exhaust lines 110, 120, and 130 after the plurality of exhaust lines 110, 120, and 130 are extended. Can be.

The configuration and operation of the compressed gas safe discharge device for a vehicle according to the modified example of the embodiment of the present invention differs only in the configuration and operation of the compressed gas safe discharge device for the vehicle according to the embodiment of the present invention and the configuration of the exhaust line, the operation is Since the same, repeated description is omitted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

10: multistage exhaust line 12,14,18,22: exhaust line
13,15,16,19,20,24: stepped portion 30: exhaust pipe stopper
40: emergency gas discharge valve 45: emergency gas flow path
50: gas storage tank 60: body
100: multi-stage exhaust line 110, 120, 130: exhaust line

Claims

A multistage exhaust line in communication with the gas storage tank, the multistage exhaust line being provided to extend in length; And
An exhaust pipe stopper provided at one end of the multistage exhaust line;
Lt; / RTI >
An emergency gas discharge valve is provided between the gas storage tank and the multistage exhaust line.
The multi-stage exhaust line
A plurality of exhaust lines,
The exhaust line is
The stepped portion is formed to extend inward to one end thereof,
One end of the inner step is formed to extend outward,
The exhaust pipe stopper
And, when the emergency gas discharge valve is opened, after the plurality of exhaust lines are extended, the emergency gas discharge valve is separated from the last exhaust line among the plurality of exhaust lines.

delete

In claim 1,
The compressed gas safe discharge device for a vehicle is characterized in that the compressed gas safe discharge device for the vehicle, characterized in that disposed toward the top.

A multistage exhaust line in communication with the gas storage tank, the multistage exhaust line being provided to extend in length; And
An exhaust pipe stopper provided at one end of the multistage exhaust line;
Lt; / RTI >
An emergency gas discharge valve is provided between the gas storage tank and the multistage exhaust line.
The multi-stage exhaust line
A plurality of exhaust lines,
The exhaust line is
It is formed in a tapered shape so that the diameter of one end is smaller,
The exhaust pipe stopper
And, when the emergency gas discharge valve is opened, after the plurality of exhaust lines are extended, the emergency gas discharge valve is separated from the last exhaust line among the plurality of exhaust lines.

delete

The method of claim 6,
The compressed gas safe discharge device for a vehicle is characterized in that the compressed gas safe discharge device for the vehicle, characterized in that disposed toward the top.