CN210770486U

CN210770486U - Redundant electric explosion valve

Info

Publication number: CN210770486U
Application number: CN201921855472.XU
Authority: CN
Inventors: 谭路遥; 徐勇; 蒋旭君; 尹霞; 张发旺
Original assignee: General Engineering Research Institute China Academy of Engineering Physics
Current assignee: General Engineering Research Institute China Academy of Engineering Physics
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-06-16
Anticipated expiration: 2029-12-05

Abstract

The utility model discloses a redundant electric explosion valve, which comprises at least 2 electric explosion valves connected in parallel and a cavity structure for storing inflammable gas; after the electric explosion valve is detonated, an air inlet and an air outlet of the electric explosion valve are communicated, and are communicated with the cavity structure after being connected in parallel, and the cavity structure is communicated with the ignition cavity. The utility model adopts the multi-set parallel redundant structure of the electric explosion tube and the valve body welding part, only one electric explosion tube works normally to ensure that the electric explosion valve completes all functions, and the working reliability of the electric explosion valve is greatly improved compared with the traditional single-set structure; this application internal design has the appearance chamber structure that stores gas, stores inflammable gas alone at ordinary times, and the improvement system has improved entire system work security nature.

Description

Redundant electric explosion valve

Technical Field

The utility model belongs to the technical field of the valve is exploded to the electricity, concretely relates to redundant electricity explodes valve.

Background

The electric explosion valve is a special product for opening a gas circuit by outputting high-pressure gas through an electric explosion tube in aerospace and civil industrial equipment, and is used for scenes such as emergency pressure relief of a nuclear power station, quick start of an airplane fire extinguisher and the like.

1. The electric explosion valve in the prior art is basically of a single-set structure, has no redundant backup function and relatively low working reliability;

2. the electric explosion valve in the prior art has no functions of storing and filling inflammable gas and only has the function of opening a gas path.

In order to solve the problems, a redundant electric explosion valve is developed by the inventor.

Disclosure of Invention

The utility model aims at providing a redundant electric explosion valve for solving above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a redundant electric burst valve comprising:

at least 2 electric explosion valves connected in parallel;

a chamber structure for combustible gas storage; after the electric explosion valve is detonated, an air inlet and an air outlet of the electric explosion valve are communicated, and are communicated with the cavity structure after being connected in parallel, and the cavity structure is communicated with the ignition cavity.

The beneficial effects of the utility model reside in that:

the utility model relates to a redundant electric explosion valve;

1. by adopting a multi-set parallel redundant structure of the electric explosion tube and the valve body welding part, the application can be ensured to complete all functions only by the normal work of the electric explosion tube, and the working reliability of the electric explosion valve is greatly improved compared with the traditional single-set structure electric explosion valve;

2. this application internal design has the appearance chamber structure that stores gas, stores inflammable gas alone at ordinary times, and the improvement system has improved entire system work security nature.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a longitudinal sectional view of the structure of the present invention (the state before filling the chamber structure with the inflammable gas);

FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 3;

FIG. 5 is a longitudinal sectional view of the structure of the present invention (the state after the chamber structure is filled with the inflammable gas);

FIG. 6 is a longitudinal sectional view structural diagram (after the electric squib is operated);

fig. 7 is a schematic structural diagram of the ignition injection system of the present invention;

FIG. 8 is a schematic view of the gas connecting passage of the present invention before the detonation of the squib valve;

fig. 9 is a schematic view of the gas connecting passage of the present invention after the detonation of the electric explosion valve.

In the figure: 1. the device comprises an electric explosion tube, 2, a valve body welding piece, 3, a valve body, 4, a pressure limiting sleeve, 5, a sliding valve, 6, a high-pressure blind tube, 7, a low-pressure blind tube, 8, an isolation sleeve, 9, a T-shaped sealing plunger, 10, a base, 11, a circular sealing plunger, 12, a filling guide tube, 13, a column-shaped sealing plunger, 14, a high-pressure joint, 15, a valve body air inlet, 16, a valve body air outlet, 17, a containing cavity structure, 20, an oxygen bottle, 21, a redundant electric explosion valve, 22, an ignition containing cavity, 23 and an ignition nozzle.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

in the case of the example 1, the following examples are given,

a redundant electric burst valve 21 comprising:

at least 2 electric explosion valves connected in parallel;

a reservoir structure 17 for combustible gas storage; after the electric explosion valve is detonated, an air inlet and an air outlet of the electric explosion valve are communicated, and are communicated with the cavity structure 17 after being connected in parallel, and the cavity structure 17 is communicated with the ignition cavity 22.

As shown in fig. 1-9; the application preferably adopts 2 parallelly connected electric explosion valves, and its advantage relative to prior art lies in: only one electric explosion valve is needed to work, the oxygen cylinder 20, the high-pressure blind pipe 6, the low-pressure blind pipe 7, the cavity structure 17 and the ignition cavity 22 can be communicated to form a gas passage, and the oxygen cylinder can work normally;

example 2, as shown in figures 3-6,

this example differs from example 1 in that: the electric explosion valve includes:

the electric explosion tube 1 is used for generating high-pressure gas to push the slide valve 5 after detonation;

a slide valve 5;

a sub-valve body 3; a sliding channel for sliding the sliding valve 5 is formed in the valve body 3, and the sliding valve 5 is slidably arranged in the sliding channel; the electric detonator 1 is arranged at the first end of the sliding channel;

a high-pressure blind pipe 6 and a low-pressure blind pipe 7; and parts of the high-pressure blind pipe 6 and the low-pressure blind pipe 7 are arranged in the sliding channel, and the sliding valve 5 cuts the high-pressure blind pipe 6 and the low-pressure blind pipe 7 after moving so as to connect the air inlet and the air outlet of each electric explosion valve.

In the application, 2 electro-explosive valves are also preferably selected, and the number of the electro-explosive valves is two corresponding to the electro-explosive tube 1, the slide valve 5, the sub-valve body 3, the high-pressure blind tube 6 and the low-pressure blind tube 7; 2 electric explosion valves are arranged in parallel;

the slide valve 5 is made of high-strength precipitation hardening stainless steel, and the structural integrity of the slide valve is guaranteed and the blind pipe is cut smoothly under the pushing of high-pressure gas generated after the electric detonator 1 is detonated.

Example 3, as shown in figures 1-6,

this example differs from example 2 in that: the valve body 3 combination of a plurality of electric explosion valves forms valve body weldment 2, and valve body weldment 2 includes:

a valve body 3; the valve body 3 is composed of a plurality of sub valve bodies 3; the cavity structure 17 is installed in the valve body 3, and the valve body 3 is made of high-strength hydrogen-resistant steel, and can be used for storing flammable gases such as hydrogen for a long time and preventing hydrogen embrittlement.

An isolation sleeve 8; the isolation sleeve 8 is installed in the second end of the sliding channel of each sub-valve body 3 and is used for sealing the inflammable gas in the cavity structure 17; after the electric explosion valve is detonated, the isolation sleeve 8 is pushed to be broken, and the cavity structure 17 is communicated with the valve body air outlet 16 through the air outlet channel;

a filling conduit 12 for filling a combustible gas into the chamber structure 17; one end of the filling conduit 12 is communicated with the cavity structure 17;

a high-pressure joint 14; the high-pressure joint 14 is arranged on the valve body 3, one end of the high-pressure joint 14 is provided with a valve body air inlet 15 connected with the oxygen cylinder 20, and the other end of the high-pressure joint 14 is respectively communicated with the high-pressure blind pipes 6; the slide valve 5 cuts the high-pressure blind pipe 6 and the low-pressure blind pipe 7 after moving, and the high-pressure blind pipe 6 and the low-pressure blind pipe 7 in each electro-explosive valve are communicated with the cavity structure 17 after being communicated.

The ignition injection system is applied to the ignition injection system, the air inlet 15 of the valve body is connected with the oxygen cylinder 20, the air outlet 16 of the valve body is connected with the ignition cavity 22, and the ignition cavity 22 is connected with the ignition nozzle 23; oxygen input from the valve body air inlet 15 and inflammable gas stored in the cavity structure 17 are connected in series and then injected into the ignition cavity 22 for ignition and combustion, high-temperature and high-pressure fuel gas is generated and sprayed out from the ignition nozzle 23, and the movement speed and the posture of the aerospace equipment are adjusted.

Oxygen in valve body air inlet 15 department reenters valve body gas outlet 16 through the appearance chamber structure 17 that stores inflammable gas in this application, guarantees inflammable gas and fully gets into valve body gas outlet 16.

Example 4, as shown in figures 3, 5 and 6,

this example differs from example 2 in that: a pressure limiting sleeve 4 is arranged in the sliding channel of each electric explosion valve.

In the case of the example 5, the following examples were conducted,

this example differs from example 2 in that: the surface of the slide valve 5 is plated with gold. The gas sealing requirement in the valve body 3 is met, and gas is prevented from leaking to the outside of the valve body 3.

Example 6. as shown in figure 6,

this example differs from example 3 in that: the isolation sleeve 8 is of a small-diameter film pressure-bearing structure, the isolation sleeve 8 is pushed to be broken after the electric explosion valve is detonated, the cavity structure 17 and the air outlet channel form an annular air path, and inflammable gas flows to the air outlet from the annular air path.

Example 7, as shown in figures 5 and 6,

this example differs from example 3 in that: after the filling conduit 12 completes the filling of the inflammable gas in the cavity structure 17, the filling conduit 12 is pressed to be sealed.

Example 8, as shown in figures 3, 5 and 6,

this example differs from example 3 in that: the valve body welding part 2 further comprises a base 10, and the base 10 is arranged at the bottom of the cavity structure 17.

Example 9, as shown in figures 3, 5 and 6,

the application also comprises a T-shaped sealing plunger 9, a circular sealing plunger 11 and a column-shaped sealing plunger. The T-shaped sealing plunger 9 is arranged on the side wall of the valve body 3 and is used for plugging a standby channel which is formed on the side wall of the valve body 3 and communicated with the air outlet channel; the round sealing plunger 11 is used for blocking a standby channel formed between the air outlet channel and the cavity structure 17; the column type sealing plunger 13 is welded on the valve body 3 and is used for plugging an air passage channel which is formed on the side wall of the valve body 3 and is communicated with the low-pressure blind pipe 7.

The power generation explosion pipe 2 is mainly formed by screwing a power generation explosion pipe 2 into a valve body welding part 2, and the valve body welding part 2 is formed by welding parts such as a pressure limiting sleeve 4, a high-pressure blind pipe 6, a low-pressure blind pipe 7, an isolating sleeve 8, a filling guide pipe 12, a high-pressure joint 14, a T-shaped sealing plunger 9, a column-shaped sealing plunger, a circular sealing plunger 11, a base 10 and the like after a slide valve 5 is arranged in a valve body 3.

The isolation sleeve 8 is of a small-diameter film pressure-bearing structure and is used for sealing inflammable gas in the cavity structure 17 at ordinary times, after the electric detonator 1 is detonated, the sliding valve 5 pushes the isolation sleeve 8 to break from the film to generate an annular gas path, and the inflammable gas flows to the gas outlet from the annular gas path.

Before the electric detonator 1 works, combustible gas is filled into the cavity structure 17 through the filling guide pipe 12, the filling guide pipe 12 is extruded and sealed after filling, the combustible gas is stored separately, and then the valve body air inlet 15 and the valve body air outlet 16 are connected into an air path pipeline of an ignition injection system; after the electric explosion tube 1 works at a specified time, high-pressure gas is generated to push the sliding valve 5 to cut the high-pressure blind tube 6 and the low-pressure blind tube 7, meanwhile, the sliding valve 5 pushes the isolation sleeve 8 to break from the thin film to generate an annular gas path, the annular gas path is connected in series with the valve body gas inlet 15, the containing cavity structure 17 and the valve body gas outlet 16, inflammable gas flows to the valve body gas outlet 16 from the annular gas path, and oxygen at the valve body gas inlet 15 enters the valve body gas outlet 16 through the inflammable gas containing cavity.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A redundant squib valve, comprising:

at least 2 electric explosion valves connected in parallel;

2. A redundant squib valve according to claim 1, characterized in that the squib valve comprises:

the electric explosion tube is used for generating high-pressure gas to push the sliding valve after detonation;

a spool valve;

a sub-valve body; a sliding channel for the sliding of the sliding valve is formed in the valve body, and the sliding valve is slidably arranged in the sliding channel; the electric detonator is arranged at the first end of the sliding channel;

a high-pressure blind pipe and a low-pressure blind pipe; and after the slide valve moves, the high-pressure blind pipe and the low-pressure blind pipe are cut to connect the air inlet and the air outlet of each electric explosion valve.

3. A redundant electric burst valve as defined in claim 2 wherein the valve body assembly of the plurality of electric burst valves is formed as a valve body weldment comprising:

a valve body; the valve body consists of a plurality of sub valve bodies; the cavity structure is arranged in the valve body,

an isolation sleeve; the isolation sleeve is arranged in the second end of the sliding channel of each sub valve body and is used for sealing inflammable gas in the cavity structure; after the electric explosion valve is detonated, the isolation sleeve is pushed to be broken, and the cavity structure is communicated with the air outlet of the valve body through the air outlet channel;

a filling conduit for filling a flammable gas into the cavity structure; one end of the filling conduit is communicated with the cavity structure;

a high-pressure joint; the high-pressure joint is arranged on the valve body, one end of the high-pressure joint is provided with a valve body air inlet connected with the oxygen cylinder, and the other end of the high-pressure joint is respectively communicated with the high-pressure blind pipes; and after the slide valve moves, the high-pressure blind pipe and the low-pressure blind pipe are cut, and the high-pressure blind pipe and the low-pressure blind pipe in each electric explosion valve are communicated with the cavity structure.

4. A redundant squib valve according to claim 2, wherein a pressure limiting sleeve is provided in the sliding channel of each squib valve.

5. A redundant electro-explosive valve according to claim 2, wherein the spool valve surface is gold plated.

6. The redundant electric explosion valve according to claim 3, wherein the isolation sleeve is of a small-diameter film pressure-bearing structure, the isolation sleeve is pushed to be broken after the electric explosion valve is detonated, the cavity structure and the air outlet channel form a ring-shaped air path, and combustible gas flows from the ring-shaped air path to the air outlet.

7. A redundant electro-explosive valve according to claim 3, wherein the filling conduit is pressed to seal after the filling conduit completes the filling of the flammable gas in the chamber structure.

8. A redundant electro-explosive valve according to claim 3, wherein the valve body weldment further comprises a base disposed at the bottom of the cavity structure.