CN211502317U

CN211502317U - High-pressure safe discharge system

Info

Publication number: CN211502317U
Application number: CN201922485481.0U
Authority: CN
Inventors: 肖刚; 黎卯; 苏开科; 袁伟; 张晓林; 杜欣洲; 万刚; 杨秘; 钟静
Original assignee: Eup Energy Technology Co ltd
Current assignee: Youjiete clean energy Co.,Ltd.
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-15
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a high-pressure safe discharge system, which comprises a heat exchanger, an air-entrapping hose, an air-entrapping gun, a first pneumatic valve, a second pneumatic valve and a first one-way valve; one end of the gas filling hose is connected with the heat exchanger, and the other end of the gas filling hose is connected with the gas filling gun; the inlet end of the heat exchanger is connected with the gas storage cylinder group; a first pneumatic valve is arranged between the heat exchanger and the air-entrapping hose; a pressure relief pipeline connected with a bleeding pipe is arranged between the first pneumatic valve and the gas filling hose; the second pneumatic valve is arranged on the pressure relief pipeline, and a first one-way valve is arranged at one end, close to the blow-off pipe, of the pressure relief pipeline. The pressure relief of the air-entrapping hose is realized, the operation safety is improved, the service life of the hose is prolonged, and when the pressure relief device is applied to an air-entrapping system without an air return hose, a gun can be safely pulled out, so that the gun is prevented from collapsing. The first pneumatic valve is used for isolating the threaded coil pipe inside the heat exchanger, so that the discharge amount of hydrogen can be reduced, and the waste is avoided. The outlet of the second pneumatic valve is provided with a flow-limiting orifice plate, so that noise and vibration can be well reduced during discharging.

Description

High-pressure safe discharge system

Technical Field

The utility model relates to an unload gas technical field, particularly, relate to a high-pressure safe discharge system.

Background

In the existing hydrogenation filling station, a hydrogenation machine generally comprises a large hydrogenation gun and a small hydrogenation gun, wherein one hydrogenation gun is used for hydrogenating a large vehicle (such as a truck, a lorry and the like), all the hydrogenation guns are provided with 2 hoses, 1 hose is connected with return air for pressure relief, and 1 hose is connected with gas filling. One is a small gun, which adds hydrogen to a trolley (private car), and one part of the gun is 2 hoses, and the other part of the gun is 1 hose. The hydrogenation rifle of 2 kinds of structures can't discharge the high-pressure hydrogen in the hydrogenation hose after the hydrogenation is accomplished, has safe risk, mainly as follows:

1) adopt 1 hose to get hydrogenation rifle, if do not have the design of superhigh pressure safety bleeding, can't release hydrogen between hydrogenation rifle and the steel bottle gun socket after hydrogenation is accomplished, can collapse the rifle when pulling out the rifle, have very big safety risk.

2) By adopting the hydrogenation gun in the form of 2 hoses, although pressure relief is performed through the gas return hose after hydrogenation is completed, the gas filling hose is filled with high-pressure hydrogen, and the potential safety hazard still exists when the hose is folded and suspended.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-pressure safe discharge system aims at solving the above-mentioned problem that high-pressure safe discharge system exists among the prior art.

The utility model discloses a realize like this:

a high-pressure safe discharge system comprises a heat exchanger, an air-entrapping hose, an air-entrapping gun, a first pneumatic valve, a second pneumatic valve and a first one-way valve;

one end of the gas filling hose is connected with the heat exchanger, and the other end of the gas filling hose is connected with the gas filling gun;

the inlet end of the heat exchanger is connected with the gas storage cylinder group;

the first pneumatic valve is arranged between the heat exchanger and the air-entrapping hose; a pressure relief pipeline connected with a diffusing pipe is arranged between the first pneumatic valve and the gas filling hose;

the second pneumatic valve is arranged on the pressure relief pipeline, and the first one-way valve is arranged at one end, close to the diffusing pipe, of the pressure relief pipeline.

In an embodiment of the present invention, the air conditioner further comprises an air return hose;

one end of the air return hose is connected with the air gun, and the other end of the air return hose is connected with one end, far away from the diffusing pipe, of the first one-way valve;

and a second one-way valve is also arranged between the air return hose and the first one-way valve.

In an embodiment of the present invention, a flow meter is further disposed at an end of the air-entrapping hose close to the heat exchanger.

In an embodiment of the present invention, a breaking valve is further disposed at one end of the air-entrapping hose close to the heat exchanger.

In an embodiment of the present invention, the second pneumatic valve further comprises a restriction orifice, and the second pneumatic valve is connected in series with the restriction orifice.

In an embodiment of the present invention, the safety valve is further included, and the second pneumatic valve is connected in parallel with the safety valve.

The utility model has the advantages that: the utility model provides a high-pressure safe discharge system to the air entrainment hose release, has improved operation security and hose and has got life, when being applied to the air entrainment system that does not have the return air hose, can pull out the rifle safely, avoids collapsing the rifle. The first pneumatic valve is used for isolating the threaded coil pipe inside the heat exchanger, so that the discharge amount of hydrogen can be reduced, and the waste is avoided. The outlet of the second pneumatic valve is provided with a flow-limiting orifice plate, so that noise and vibration can be well reduced during discharging.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a system diagram of a high-pressure safety exhaust system provided by an embodiment of the present invention.

Icon: 100-a heat exchanger; 210-an air-entrapping hose; 300-air gun; 110-a first pneumatic valve; 410-a second pneumatic valve; 430-a first one-way valve; 450-a restriction orifice plate; 470-safety valve; 230-a snap valve; 250-a flow meter; 510-air return hose; 530-a second one-way valve.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

Examples

The present embodiment provides a high pressure safety exhaust system, referring to fig. 1, which includes a heat exchanger 100, an air charging hose 210, an air charging gun 300, a first pneumatic valve 110, a second pneumatic valve 410, and a first check valve 430;

the inlet end of the heat exchanger 100 is connected with the gas storage cylinder group; one end of the air-entrapping hose 210 is connected to the outlet end of the heat exchanger 100, and the other end is connected to the air-entrapping gun 300;

a first pneumatic valve 110 is arranged between the heat exchanger 100 and the air-entrapping hose 210; a pressure relief pipeline connected with a diffusing pipe is arranged between the first pneumatic valve 110 and the gas filling hose 210;

a second pneumatic valve 410 is provided on the pressure relief line, and a first one-way valve 430 is provided on the end of the pressure relief line adjacent the bleed line.

After the external equipment is aerated through the air gun 300, before the air gun 300 is taken out, the first pneumatic valve 110 can be closed, the air supply of the heat exchanger 100 to the air hose 210 is cut off, then the second pneumatic valve 410 is opened, high-pressure gas between the air gun 300 and the first pneumatic valve 110 is discharged at the moment, then the air gun 300 is pulled out, and the gun collapse caused by the high-pressure gas between the air gun 300 and the steel cylinder gun inserting seat is avoided.

In the present embodiment, the high pressure safety vent system further includes a restriction orifice 450 and a safety valve 470, the second pneumatic valve 410 being disposed in series with the restriction orifice 450, the second pneumatic valve 410 being disposed in parallel with the safety valve 470.

The restriction orifice 450 is disposed at an outlet of the second pneumatic valve 410, and restricts flow when the second pneumatic valve 410 exhausts, thereby reducing noise and vibration. The safety valve 470 is arranged in parallel with the second pneumatic valve 410, so as to ensure the safety of the whole process from the gun insertion to the external equipment to the air exhaust of the second pneumatic valve 410.

Specifically, in order to avoid accidents, a breaking valve 230 is further disposed at one end of the air-entraining hose 210 close to the heat exchanger 100.

In order to monitor the filling flow, a flow meter 250 is further disposed at an end of the filling hose 210 close to the heat exchanger 100.

The high pressure safety vent system provided in this embodiment further includes a return air hose 510. It should be noted that, in other embodiments, there may be no return air hose 510, but only the air-filling hose 210, and it is preferable to first perform air-filling in the air-filling hose 210 through the linkage of the first pneumatic valve 110 and the second pneumatic valve 410 to avoid gun collapse. The high-pressure safe discharge system with the return air hose 510 can firstly pull out the gun through the air leakage function of the return air hose 510, and can reduce the potential safety hazard by pre-leaking the air filling hose 210 before the air filling hose 210 is retracted.

Specifically, one end of the air return hose 510 is connected to the air gun 300, and the other end is connected to one end of the first one-way valve 430 far away from the diffusing pipe; a second check valve 530 is further disposed between the return hose 510 and the first check valve 430.

Before the air-entrapping hose 210 is suspended, the first air-entrapping valve 110 is closed to block the air supply of the heat exchanger 100 to the air-entrapping hose 210, and then the second air-entrapping valve 410 is opened to discharge the high-pressure air inside the air-entrapping hose 210.

The high-pressure safe discharge system provided by the embodiment is mainly applied to a hydrogen filling station, and can be applied to filling stations of other types of fuels in other embodiments.

The utility model provides a high-pressure safe discharge system to air entrainment hose 210 release, has improved operational safety and hose and has got life, when being applied to the air entrainment system that does not have return air hose 510, can pull out the rifle safely, avoids collapsing the rifle. By isolating the threaded coil tubing inside the heat exchanger 100 via the first pneumatic valve 110, the amount of hydrogen emissions can be reduced, i.e., safe and without waste. The orifice plate 450 is disposed at the outlet of the second pneumatic valve 410, so that noise and vibration can be reduced well during discharging.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-pressure safe discharge system is characterized by comprising a heat exchanger, an air charging hose, an air charging gun, a first pneumatic valve, a second pneumatic valve and a first one-way valve;

2. The high-pressure safety vent system according to claim 1, further comprising a return air hose;

3. The high-pressure safety vent system according to claim 1, wherein a flow meter is further provided at an end of the air-entraining hose adjacent to the heat exchanger.

4. The high-pressure safety discharge system of claim 1, wherein a break valve is further provided at an end of the air-entrainment hose adjacent to the heat exchanger.

5. The high pressure safety vent system of claim 1, further comprising a restrictive orifice, the second pneumatic valve being disposed in series with the restrictive orifice.

6. The high pressure safety vent system of claim 1, further comprising a relief valve, the second pneumatic valve being disposed in parallel with the relief valve.