CN107131339A - A kind of electronic execution needling structure QRV Quick Release Valve door - Google Patents

Abstract

The fire-fighting equipment application technical field of the present invention particularly relates to a fast discharge valve with electric actuator acupuncture structure. Its structure is simple, safe and reliable, and it starts quickly (starting time ≤ 3ms), which can quickly release the gas in the cylinder. It includes a hollow shell, a hollow external pipeline base and a bottle valve body; one end of the shell is detachably connected to one end of the external pipeline base, and the other end of the external pipeline base is connected to the bottle The valve body is detachably connected. The inner cavity of the housing is provided with a thin acupuncture rod, one end of the thin acupuncture rod is a tapered tip, and the other end of the thin acupuncture rod is connected to one end of a piston; the other end of the piston is connected to the One end of an electric actuator is connected. The inner cavity of the bottle valve valve is provided with a positive arched sealing diaphragm covering the section of the inner cavity, and the end of the valve body of the bottle valve is detachably connected with the high-pressure gas tank; The low pressure tank is connected.

Description

A fast release valve with electrically operated acupuncture structure

technical field

The fire fighting equipment application technical field of the present invention particularly relates to a fast discharge valve with an electrically operated acupuncture structure.

Background technique

Non-storage-pressure fire-extinguishing equipment and stored-pressure fire-extinguishing equipment, as two common fire-extinguishing equipment, are widely used in the technical design process of fire-fighting equipment. Non-storage-type fire extinguishing equipment stores permanent gas as driving gas in high-pressure gas cylinders during normal storage or standby. When it is necessary to perform fire extinguishing tasks, it is necessary to manually open the valve to inject the driving gas into the low-pressure tank containing the fire extinguishing agent. In order to quickly release the gas in the high-pressure gas cylinder and avoid the safety risk of manual operation by personnel, it cooperates with electrical control. According to the requirements of remote automatic control of the system, the fast release valve with electric actuator acupuncture structure can quickly execute the start action after the control system sends out the control signal, and quickly release the compressed gas in the gas cylinder to improve the safety of opening the high pressure cylinder valve. Improve the performance and release speed, and shorten the time from pressurization of the fire extinguisher to injection of the agent.

Contents of the invention

The present invention aims at the defects existing in the prior art, and provides an electric fast discharge valve with acupuncture structure, which solves the sealing structure of the bottle valve diaphragm, the opening mode of the valve, the acupuncture structure, and the connection mode between the bottle body and the pipeline. , the connection method between the acupuncture structure electric actuator and the bottle body, and the technical problems of the acupuncture structure reset after the gas in the high-pressure gas cylinder is released and the prevention of misoperation of the acupuncture structure. Its structure is simple, safe and reliable, and it starts quickly (starting time ≤ 3ms), which can quickly release the gas in the cylinder.

In order to achieve the above object, the present invention adopts the following technical solution, comprising a hollow shell, a hollow external pipeline base and a bottle valve body; one end of the shell is detachably connected to one end of the external pipeline base, The other end of the external pipeline base is detachably connected with the bottle valve body.

The inner cavity of the housing is provided with a thin acupuncture rod, one end of the thin acupuncture rod is a tapered tip, and the other end of the thin acupuncture rod is connected to one end of a piston; the other end of the piston is connected to the One end of an electric actuator is connected.

The inner cavity of the bottle valve valve is provided with a positive arched sealing diaphragm covering the cross section of the inner cavity, and the end of the valve body of the bottle valve is detachably connected with the high-pressure gas tank; Low pressure tank connected.

As a preferred solution of the present invention, a convex edge is provided on the inner wall of the cavity of the housing and below the piston, and the tip of the acupuncture thin rod protrudes from the inner cavity of the housing and extends to the inner cavity of the external pipeline base; A spring is provided on the outer cover of the barbed rod, and one end of the spring abuts against the convex edge, and the other end of the spring abuts against the piston.

As another preferred solution of the present invention, at least one threaded hole is provided on the base of the external pipeline, the threaded hole is used for the external pipeline, and the threaded hole is compatible with the external pipeline; the threaded hole is compatible with the external pipeline. The inner cavity of the base is connected; the pipeline base is connected with a low-pressure tank filled with fire extinguishing agent through a threaded hole and an external pipeline.

As another preferred solution of the present invention, the needle-punched rod is provided with a plurality of parallel grooves, the grooves are parallel to the axis of the needle-punched rod, and the grooves pass through the needle-punched rod.

As another preferred solution of the present invention, the piston is equipped with a first O-ring for sealing, the housing is screwed to the external pipeline base, and the connection between the housing and the external pipeline base The gap at the joint is sealed with a second O-ring, and the gap at the connection between the bottle valve body and the external pipeline base is sealed with a third O-ring.

As another preferred solution of the present invention, the electric actuator includes an electric squib; the other end of the piston is connected to one end of the electric squib; the other end of the electric squib is in contact with a contact, and the contact The point is connected to one end of the wire, and the gap between the contact and the inner cavity of the housing is filled and plugged tightly with a terminal ring, and insulating rubber is provided for insulation from the outside world under the inner cavity of the housing and the inner ring of the terminal; The other end passes through the terminal bushing, insulating rubber and copper core to form a power electrode assembly; the other end of the housing contacts the power electrode assembly to the electrode of the electric squib and locks it to the housing through a locking nut. body; the lock nut is sleeved outside the shell and connected with the shell thread; the wire protrudes outside the shell, and a snap ring buckle is installed in the stop groove of the copper core at the end.

As another preferred solution of the present invention, the inner chamber of the bottle valve body is in the shape of a ladder with a wide top and a narrow bottom, and the sealing diaphragm is detachably connected to the bottle valve body through an annular plug; the sealing The diaphragm is fixed on the edge of the stepped inner cavity through an annular plug, and the plug and the sealing diaphragm are compressed by a gasket; the annular plug is threadedly connected with the inner cavity of the bottle valve body.

As another preferred solution of the present invention, the bottle valve body is provided with a bursting disc safety valve, the inner cavity of the bursting disc safety valve communicates with the inner cavity of the bottle valve body, and the bursting disc safety valve is set Below the sealing diaphragm; below the bursting disc safety valve, there is a screw thread at the end of the bottle valve body, and the bottle valve body is connected with the high-pressure gas tank thread.

As another preferred solution of the present invention, a pressure sensor is installed on the threaded hole of the external pipeline base.

Compared with the prior art, the present invention has beneficial effects.

The rapid discharge valve with electric actuator acupuncture structure in the present invention can quickly execute the start action after sending out the control signal to the electric actuator, and quickly discharge the compressed gas in the gas cylinder, improving the safety of the valve opening of the high pressure cylinder and release speed, shortening the time from pressurization of the fire extinguisher to injection of the agent.

The positive arch structure of the sealing diaphragm of the present invention can make the stress distribution of the diaphragm even and the diaphragm will not be stretched and deformed under the working pressure. The diaphragm is impacted by the high-pressure gas in the bottle to produce a larger and more open breach than the flat diaphragm, providing a larger discharge channel for the compressed gas in the bottle.

The rapid discharge valve of the electric performing acupuncture structure of the present invention is equipped with a compression spring, which prevents the acupuncture piston from moving downward freely under the action of gravity and causing malfunction to damage the diaphragm. At the same time, after puncturing the positive arched sealing diaphragm, push the acupuncture piston rod upwards and reset it, exposing the complete breach of the diaphragm, so that the discharge speed is faster.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the following expressions.

Fig. 1-2 is a schematic diagram of a cross-sectional three-dimensional structure of the present invention.

3-6 are schematic diagrams of different angles of the structure of the piston and the acupuncture thin rod of the present invention.

Fig. 7 is a schematic diagram of the structure of the sealing membrane of the present invention.

In the figure, 1 is the wire, 2 is the terminal copper core, 3 is the circlip buckle, 4 is the insulating rubber, 5 is the terminal bushing, 6 is the contact, 7 is the lock nut, 8 is the electric squib, 9 10 is the first O-ring, 10 is the spring, 11 is the acupuncture rod, 12 is the housing, 13 is the second O-ring, 14 is the external pipeline base, 15 is the third O-ring, 16 is a bottle valve body, 17 is a bursting disc safety valve, 18 is a positive arched sealing diaphragm, 19 is a gasket, 20 is a pressure plug, and 21 is a threaded hole.

detailed description

As shown in Figures 1-7, the present invention includes a hollow housing 12, a hollow external pipeline base 14 and a bottle valve body 16; one end of the housing 12 and one end of the external pipeline base 14 are detachable The other end of the external pipeline base 14 is detachably connected with the bottle valve body 16 . The inner cavity of the housing 12 and the inner cavity of the external pipeline base 14 are located on a straight line to form a general cavity.

The inner cavity of the housing 12 is provided with an acupuncture thin rod 11, one end of the acupuncture thin rod 11 is a tapered tip, and the other end of the acupuncture thin rod 11 is connected with one end of a piston; the other end of the piston is connected to the One end of an electric actuator in the cavity of the housing 12 is connected.

The inner cavity of the bottle valve body 16 is provided with a positive arched sealing diaphragm 18 covering the section of the inner cavity, and the end of the bottle valve body 16 is detachably connected with the high-pressure gas tank; The low-pressure tank containing the fire extinguishing agent is connected.

Preferably, a convex edge is provided on the inner wall of the cavity of the housing 12 and below the piston, and the tip of the acupuncture thin rod 11 protrudes from the inner cavity of the housing 12 and extends to the inner cavity of the external pipeline base 14; The thin rod 11 is covered with a spring 10 , one end of the spring 10 abuts against the convex edge, and the other end of the spring 10 abuts against the piston. The diameter of the piston is greater than the diameter of the thin acupuncture rod 11, and the spring 10 forms a spring 10 type reset mechanism. The spring 10 is a compression spring 10, which forms a reset structure in the electrical actuator housing.

Preferably, at least one threaded hole 21 is provided on the external pipeline base 14, the threaded hole 21 is used for the external pipeline, and the threaded hole 21 is suitable for the external pipeline; the threaded hole 21 is compatible with the external pipeline The inner cavity of the base is connected; the pipeline base is connected with the low-pressure tank containing the fire extinguishing agent through the threaded hole 21 and the external pipeline.

Preferably, the thin acupuncture rod 11 is provided with a plurality of parallel grooves, the grooves are parallel to the axis of the acupuncture rod 11 , and the grooves pass through the needle rod 11 .

Preferably, the piston is equipped with a first O-ring 9 for sealing, the housing 12 is screwed to the external pipeline base 14, and the connection between the housing 12 and the external pipeline base 14 The gap is sealed by the second O-ring 13 , and the gap between the bottle valve body 16 and the external pipeline base 14 is sealed by the third O-ring 15 .

Preferably, the electric actuator includes an electric detonator 8; the other end of the piston is connected to one end of the electric detonator 8; the other end of the electric detonator 8 is in contact with a contact 6, and the contact 6 is in contact with One end of the wire 1 is connected, and the gap between the contact 6 and the inner cavity of the housing 12 is filled and plugged tightly with the terminal ring 5. The inner cavity of the housing 12 and the lower part of the terminal ring 5 are provided with insulation for insulation from the outside world. Rubber 4; the other end of the wire 1 passes through the terminal bushing 5, the insulating rubber 4 and the terminal copper core 2 to form a power electrode assembly; the other end of the housing 12 connects the power electrode assembly through a lock nut 7 Contact the electrode of the electric squib 8 and lock it on the housing 12; the locking nut 7 is sleeved outside the housing 12 and connected to the housing 12 by threads; the wire 1 protrudes outside the housing 12, A snap ring clasp 3 is installed in the stop groove of the copper core 2 at the end.

Preferably, the inner chamber of the bottle valve body 16 has a stepped shape with a wide top and a narrow bottom, and the sealing diaphragm is detachably connected to the bottle valve body 16 through an annular plug 20; the sealing diaphragm passes through The annular plugging 20 is fixed on the edge of the stepped inner cavity, and the sealing diaphragm 20 and the sealing diaphragm are compressed by the gasket 19; (The gasket 19 is crimped on the edge of the sealing diaphragm, and the annular plug 20 is crimped on the annular gasket 19).

Preferably, the bottle valve body 16 is provided with a bursting disc safety valve 17, the inner cavity of the bursting disc safety valve 17 communicates with the inner cavity of the bottle valve body 16, and the bursting disc safety valve 17 is arranged on a sealing Below the diaphragm; the safety valve is used to prevent the pressure in the pipeline from being too high, and it will open to exhaust outside when the pressure exceeds the threshold value. The bottom of the bursting disc safety valve 17 and the end of the bottle valve body 16 are provided with threads, and the bottle valve body 16 is connected to the high-pressure gas tank by threads.

Preferably, a pressure sensor is mounted on the threaded hole 21 of the external pipeline base 14 . It is convenient to monitor the pressure of the whole pipeline.

Specifically, there are multiple release grooves on the acupuncture thin rod 11, and the needle point is used to break the membrane, the straight section of the thin rod expands the breach, and the high-pressure gas flows through the multiple release grooves on the thin rod. Continue to expand the diaphragm breach through the diaphragm breach, utilizing the positive arch sealing diaphragm 18 with large breach, easy opening, stable performance and the space in the circumferential direction of the diaphragm. The flash generated by the breach is expanded in multiple directions without hindering the outflow direction of the airflow. At the same time, the breach produced in this way is larger than the breach area produced by acupuncture in the form of a thin tube needle point with internal openings, and the discharge In less time, the gas is released more efficiently and without debris.

More specifically, the electric actuator casing 12 is equipped with a piston + acupuncture thin rod 11 with a special release groove, and under the action of the thrust generated when the electric detonator 8 is detonated, the acupuncture thin rod 11 is pierced. The sealing diaphragm 18 is positively arched, and the gas rushes out from the breach between the release groove of the needle-punched thin rod 11 and the sealing diaphragm from the high-pressure gas cylinder. The power electrode assembly is fixed and compressed by the lock nut 7. When the electric squib 8 is detonated, more than 42kg of active force is generated to make the acupuncture mechanism move forward. Therefore, the design and structure of the electric actuator is exquisite, the sealing performance and electrical insulation performance are good, and the use is safe and reliable.

The valve opening method of the present invention relies on the power generated by the detonation of the electric detonator 8. By pushing the piston forward rapidly, one end of the piston has a needle-punched rod 11, and there is a release groove processed along the axis on the needle-punched rod 11. The groove runs through Acupuncture the thin rod 11, the needle tip pierces the positive arched sealing diaphragm 18 and passes through it completely, the high-pressure gas enters the external pipeline base 14 through the release groove and expands the rupture of the diaphragm during the release process, unit time The gas flow rate increases, and quickly enters the low-pressure tank containing the fire extinguishing agent through the external pipeline. After the pressure in the agent tank reaches the injection requirements, the agent is sprayed to the fire point through the nozzle.

Further, the second O-ring 13 is put into the lower end seam of the housing 12 of the electric actuator structure, and is butted and tightened with the external thread of the external pipeline base 14, and the third O-ring 15 is put into the external pipeline base. In the internal thread seam at the other end of the seat 14, connect and tighten with the same type of external thread at one end of the bottle valve valve body 16 with the rupture disc safety valve 17, the positive arched sealing diaphragm 18, the special gasket 19 and the plugging plug 20 installed. The special threaded hole 21 for the external pipeline is installed with a joint connected to the external pipeline and connected with the external pipeline.

As an embodiment: when the electric detonator 8 is detonated, an impact force of more than 42 kg is applied to the piston+the needle-punched rod 11, and the needle-punched rod 11 is pushed to pierce the sealing diaphragm, and the high-pressure gas stored in the bottle is released. Enter the external pipeline through the special threaded hole 21 for the external pipeline.

The main technical performance indicators of the quick release valve with electrically operated acupuncture structure.

a. Start-up time ≤ 3ms.

b. Operating temperature -40℃～+55℃.

c. Electric squib 8 detonation current 350 ~ 400 mA.

d. The safe current is 50 mA.

e. Dielectric strength ≥ 500V.

It can be understood that the above specific descriptions of the present invention are only used to illustrate the present invention and are not limited to the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or Equivalent replacements to achieve the same technical effect; as long as they meet the needs of use, they are all within the protection scope of the present invention.

Claims (9)

1. A fast discharge valve with an electrically operated acupuncture structure, comprising a hollow housing, a hollow external pipeline base and a bottle valve body; it is characterized in that one end of the housing is connected to the external pipeline base One end is detachably connected, and the other end of the external pipeline base is detachably connected with the bottle valve body; The inner cavity of the housing is provided with a thin acupuncture rod, one end of the thin acupuncture rod is a tapered tip, and the other end of the thin acupuncture rod is connected to one end of a piston; the other end of the piston is connected to the One end of an electric actuator is connected; The inner cavity of the bottle valve valve is provided with a positive arched sealing diaphragm covering the cross section of the inner cavity, and the end of the valve body of the bottle valve is detachably connected with the high-pressure gas tank; Low pressure tank connected. 2. The quick release valve with electrically operated acupuncture structure according to claim 1, characterized in that: a convex edge is provided on the inner wall of the cavity of the housing and below the piston, and the tip of the acupuncture thin rod protrudes The inner chamber of the casing extends to the inner chamber of the outer pipeline base; a spring is provided on the outer casing of the thin acupuncture rod, one end of the spring abuts against the convex edge, and the other end of the spring abuts against the piston. 3. The fast release valve with an electrically operated acupuncture structure according to claim 1, characterized in that: at least one threaded hole is opened on the base of the external pipeline, and the threaded hole is used to connect the external pipeline. The threaded hole is adapted to the external pipeline; the threaded hole communicates with the inner cavity of the base; the pipeline base is connected with the low-pressure tank containing the fire extinguishing agent through the threaded hole and the external pipeline. 4. A quick release valve with an electrically operated acupuncture structure according to claim 1, characterized in that: the acupuncture thin rod is provided with a plurality of parallel grooves, and the grooves are aligned with the acupuncture thin rods. The axes of the rods are parallel, and the groove runs through the needled thin rod. 5. A fast release valve with an electrically operated acupuncture structure according to claim 1, characterized in that: the piston is equipped with a first O-ring for sealing, and the housing and the external pipeline base Threaded connection, the gap between the housing and the external pipeline base is sealed with a second O-ring, and the gap between the bottle valve body and the external pipeline base is sealed with a third O-ring ring seal. 6. A fast release valve with electric actuator acupuncture structure according to claim 1, characterized in that: the electric actuator includes an electric squib; the other end of the piston is connected to one end of the electric squib; The other end of the electric squib is in contact with a contact, and the contact is connected to one end of the wire. The gap between the contact and the inner cavity of the housing is filled with a terminal gasket. Insulating rubber for insulation from the outside is provided below; the other end of the wire passes through the terminal bushing, insulating rubber and copper core at the end to form a power electrode assembly; the other end of the housing connects the power electrode through a lock nut The assembly contacts the electrode of the electric squib and is locked on the housing; the locking nut is sleeved outside the housing and connected with the housing thread; the wire protrudes from the housing, and a snap ring is installed on the In the stop groove of the terminal copper core. 7. A quick release valve with an electrically operated acupuncture structure according to claim 1, characterized in that: the inner cavity of the valve body of the bottle valve is in the shape of a ladder with a wide top and a narrow bottom, and the sealing diaphragm passes through the ring The pressure plug is detachably connected to the body of the bottle valve; the sealing diaphragm is fixed on the edge of the stepped inner cavity through an annular pressure plug, and the pressure plug and the sealing diaphragm are compressed by a gasket; the annular pressure plug and the bottle The inner cavity of the valve body is threaded. 8. A fast discharge valve with an electrically operated acupuncture structure according to claim 7, characterized in that: the valve body of the bottle valve is provided with a bursting disc safety valve, and the inner chamber of the bursting disc safety valve is in contact with the bottle valve The inner cavity of the valve body is connected, and the bursting disc safety valve is set under the sealing diaphragm; the bottom of the bursting disc safety valve and the end of the bottle valve body are provided with threads, and the bottle valve body is connected with the high-pressure gas tank thread . 9 . The quick release valve with an electrically operated acupuncture structure according to claim 3 , wherein a pressure sensor is installed on the threaded hole of the external pipeline base. 10 .