Remote control automatic pressure release valve and using method thereof

Abstract

The invention discloses a remote control automatic pressure relief valve and a using method thereof.The pressure relief valve comprises a pressure relief chamber, a pressure relief plug, a diaphragm, a pressing screw, a powder chamber, an ignition plug and an ignition electrode, the pressure relief chamber is provided with a cavity, side holes are formed in the two radial sides of the pressure relief chamber respectively, the pressure relief plug is installed in one side hole, and the pressure relief plug is installed in the other side hole; the pressure relief plug comprises a mounting part and a shearing part located at the top of the mounting part, the lower end of the mounting part is connected with the high-pressure container, the upper end of the mounting part is connected with one side hole, the shearing part extends into the cavity, a pressure relief hole is formed in the pressure relief plug, one end of the pressure relief hole is communicated with the high-pressure container, and the other end of the pressure relief hole extends into the shearing part. The remote control automatic pressure relief valve is used, the problem that potential safety hazards exist in manual pressure relief when a high-pressure device fails in operation is solved, and the device is simple in structure and convenient to apply and has wide application prospects.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pressure relief valves, and particularly relates to a remote control automatic pressure relief valve and a use method thereof. BACKGROUND

[0002] The core function of a pressure relief valve, as a vital safety device, lies in releasing and balancing pressure. During the operation of high-pressure containers, there may be safety hazards due to the accumulation of internal pressure. In this case, if there is no timely and effective intervention, not only the equipment will be damaged, but also the safety of the operators may be threatened. Therefore, pressure relief valves are widely used. When there is pressure blockage in a high-pressure container, the pressure relief valve can effectively work to smoothly release the excess pressure to the external environment. This process not only ensures the balance of the internal pressure of the container, but also effectively eliminates the safety risks caused by excessive pressure. Whether in the fields of petrochemical industry, energy, aerospace or other high-pressure fields, pressure relief valves play an indispensable role and provide protection for production safety.

[0003] In the prior art, most pressure relief valves use mechanical starting mode, and the time from starting to taking effect is relatively long, which cannot achieve rapid pressure relief. SUMMARY

[0004] The purpose of the present application is to provide a remote control automatic pressure relief valve and a use method, to solve the problem of safety hazards in manual pressure relief when high-pressure devices fail, to achieve rapid pressure relief, and to have simple device structure and convenient operation, which should have high practicality and convenience in actual application.

[0005] To solve the above technical problems, the technical scheme of the present application is as follows: a remote control automatic pressure relief valve, comprising a pressure relief chamber, a pressure relief plug, a diaphragm, a pressure screw, a powder chamber, an ignition plug, an ignition electrode,

[0006] The pressure relief chamber has a cavity, and side holes are formed on the two sides in the radial direction, each side hole being in communication with the outside and the cavity,

[0007] One of the side holes is provided with the pressure relief plug, the pressure relief plug comprises a mounting portion and a shearing portion located at the top of the mounting portion, the lower end of the mounting portion is connected with a high-pressure container, the upper end is connected with one of the side holes, the shearing portion extends into the cavity, a pressure relief hole is formed in the pressure relief plug, one end of the pressure relief hole is in communication with the high-pressure container, and the other end extends into the shearing portion,

[0008] The ignition plug is located at one end of the pressure relief chamber, the powder chamber, the pressure screw and the diaphragm are sequentially installed in the cavity, gunpowder is placed in the powder chamber, the front end of the ignition electrode is in contact with the gunpowder through the ignition plug, and the rear end is connected with an ignition device, the pressure screw is provided with a through hole in the axial direction, and the rear end of the diaphragm is limited on the first step surface of the cavity,

[0009] When the powder is ignited, the high pressure gas can cut the back end of the diaphragm after passing through the through hole, and continue to push the front end of the diaphragm to advance in the cavity to break the shear part.

[0010] Further, the back end of the diaphragm has a skirt structure abutting against the first step surface in the middle of the pressure relief chamber, and the front end is a protruding structure matched with the gap of the cavity of the pressure relief chamber.

[0011] Further, the front end of the ignition electrode is installed in the back end of the powder chamber through the through hole in the ignition plug.

[0012] Further, it also includes a gasket, the ignition plug is threadedly connected with the opening in the back end of the cavity, and the front end of the ignition plug abuts against the second step surface of the cavity to fix the gasket for sealing.

[0013] Further, the through hole of the compression screw is designed as a cylindrical through hole at the front end and a hexagonal counterbore at the back end, and the compression screw is threadedly connected with the pressure relief chamber.

[0014] Further, the pressure relief plug is threadedly connected with the pressure relief chamber, and a notch is pre-set on the shear part to facilitate the shear damage to achieve the pressure relief function.

[0015] Further, the diaphragm is made of brass.

[0016] Further, the gasket is made of red copper.

[0017] According to the above-mentioned use method of the remote control automatic pressure relief valve, the following steps are included:

[0018] Step one, install the diaphragm and the compression screw in the middle of the cavity of the pressure relief chamber, fix the back end of the diaphragm by the compression screw, and place the powder in the powder chamber;

[0019] Step two, install the ignition electrode in the through hole of the ignition plug, connect the ignition electrode with the ignition device, and threadedly connect the ignition plug with the pressure relief chamber;

[0020] Step three, threadedly connect the pressure relief plug with the pressure relief chamber, and install the lower end of the pressure relief plug in the high-pressure container;

[0021] Step four, remotely trigger the powder in the powder chamber by the ignition device, the high-pressure gas generated by the combustion of the powder cuts the back end of the diaphragm, the front end of the diaphragm moves forward to impact the shear part of the pressure relief plug to break it, the back end of the diaphragm stays at the first step surface, and the gas in the high-pressure container communicates with the outside through the pressure relief hole of the pressure relief plug and the side hole of the pressure relief chamber to relieve pressure.

[0022] Compared with the prior art, the technical effects achieved by the present application are as follows:

[0023] 1. When pressure occlusion occurs in the high-pressure device during operation, causing normal pressure relief to be impossible, the internal pressure of the high-pressure container is released by remote control of the pressure relief valve, and the operator is located at a safe distance during operation, thereby eliminating the safety hazards of manual pressure relief when the high-pressure device fails.

[0024] 2. The remote control automatic pressure relief valve device uses an electric ignition device, has a simple and reasonable overall structure, uses gunpowder gas to trigger the pressure relief valve to work, and the gunpowder gas has the characteristics of instantaneous high efficiency, can greatly save the time of the high-pressure container under dangerous working conditions, realizes rapid pressure relief, is mature in technology, reliable in structure, convenient to operate, and high in practicality. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of the remote control automatic pressure relief valve of the present application;

[0026] Figure 2 is a structural schematic view of the pressure relief plug;

[0027] Figure 3 is a schematic view of the working process of the pressure relief valve.

[0028] The drawings show that a remote control automatic pressure relief valve comprises a pressure relief chamber 2, a pressure relief plug 3, a diaphragm 4, a pressure screw 5, a powder chamber 6, an ignition plug 8, and an ignition electrode 9. DETAILED DESCRIPTION

[0029] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0030] As shown in the drawings, Figure 1 a remote control automatic pressure relief valve comprises a pressure relief chamber 2, a pressure relief plug 3, a diaphragm 4, a pressure screw 5, a powder chamber 6, an ignition plug 8, and an ignition electrode 9.

[0031] The pressure relief chamber 2 has a cavity, and side holes are formed on the two sides in the radial direction, respectively, each side hole being connected to the outside and the cavity,

[0032] one of the side holes is provided with the pressure relief plug 3, and the other side hole is used for releasing high-pressure gas, the pressure relief plug 3 comprises a mounting portion and a shearing portion located at the top of the mounting portion, the lower end of the mounting portion is connected to a high-pressure container 1, and the upper end is connected to one of the side holes, the shearing portion extends into the cavity, and a pressure relief hole is formed in the pressure relief plug 3, one end of the pressure relief hole is connected to the high-pressure container 1, and the other end extends into the shearing portion,

[0033] The ignition plug 8 is located at one end of the pressure relief chamber 2. The propellant chamber 6, the pressure screw 5, and the diaphragm 4 are sequentially installed in the cavity. The propellant chamber 6 contains gunpowder. The front end of the ignition electrode 9 passes through the ignition plug 8 and contacts the gunpowder, while the rear end is connected to the ignition device. The pressure screw 5 has a through hole along the axial direction, and the rear end of the diaphragm 4 is limited to the first stepped surface of the cavity.

[0034] When the gunpowder is ignited, the high-pressure gas passes through the through hole and can shear and destroy the rear end of the diaphragm 4, and continue to push the front end of the diaphragm 4 forward in the cavity to break the shearing part.

[0035] Preferably, the rear end of the diaphragm 4 has a skirt structure, which is abutted against the first step surface in the middle of the pressure relief chamber 2 by the pressure screw 5. The front end has a protruding structure that is fitted with the cavity of the pressure relief chamber 2 with a clearance. When the pressure relief valve is working, the skirt structure is sheared and broken by the gas pressure. The front protrusion continues to move forward and impacts the pressure relief plug 3, causing it to break. The skirt structure is left in the pressure relief chamber by the pressure screw 5.

[0036] Preferably, the front end of the ignition electrode 9 is installed at the rear end of the medicine chamber 6 through the internal through hole of the ignition plug 8.

[0037] Preferably, it also includes a gasket 7, and the ignition plug 8 is threadedly connected to the opening at the rear end of the cavity. The front end of the ignition plug 8 abuts the gasket 7, which is used for sealing, against the second stepped surface of the cavity and fixes it.

[0038] Preferably, the pressure screw 5 is coaxially installed with the pressure relief chamber 2. The front end of the pressure screw 5 is designed with a cylindrical through hole, and the rear end is an internal hexagon countersunk hole. The pressure screw 5 is threadedly connected to the pressure relief chamber 2.

[0039] Preferably, the pressure relief plug 3 is threadedly connected to the pressure relief chamber 2, and the shearing part has a pre-cut groove to facilitate shearing and destruction to achieve the pressure relief function.

[0040] Preferably, the diaphragm 4 is made of brass.

[0041] Preferably, the gasket 7 is made of copper.

[0042] The above-described method for using a remotely controlled automatic pressure relief valve includes the following steps:

[0043] Step 1: Install the diaphragm 4 and the pressure screw 5 in the middle of the pressure relief chamber 2, fix the diaphragm 4 with the pressure screw 5 against the rear end of the diaphragm 4, and place gunpowder in the gunpowder chamber 6;

[0044] Step 2: Install the ignition electrode 9 into the through hole of the ignition plug 8, connect the ignition electrode 9 to the ignition device, and thread the ignition plug 8 to the pressure relief chamber 2.

[0045] Step 3: Thread the pressure relief plug 3 to the pressure relief chamber 2, with the lower end of the pressure relief plug 3 installed on the high-pressure vessel 1;

[0046] Step four: The gunpowder in the ignition chamber 6 is remotely ignited by the ignition device. The combustion of the gunpowder generates high-pressure gas, which shears and breaks the rear end of the diaphragm 4. The front end of the diaphragm 4 moves forward and hits the shearing part of the pressure relief plug 3, causing it to break. The rear end of the diaphragm 4 remains at the first step surface. The gas in the high-pressure container 1 is depressurized by communicating with the outside through the pressure relief hole of the pressure relief plug 3 and the side hole of the pressure relief chamber 2.

[0047] This invention utilizes a remotely controlled ignition device to ignite the propellant in the combustion chamber. The resulting high-pressure gas shears and breaks the skirt structure of the diaphragm, causing the diaphragm to move forward and impact a pressure relief plug. The pressure relief plug breaks along a pre-set groove, allowing the gas inside the high-pressure container to communicate with the outside through the through-hole of the pressure relief plug, the pressure relief chamber, and the side hole of the pressure relief chamber, thereby balancing the pressure in the high-pressure container. This invention uses a remotely controlled automatic pressure relief valve, solving the safety hazards of manual pressure relief in the event of a high-pressure device malfunction. The device has a simple structure, is easy to use, and has broad application prospects.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A remotely controlled automatic pressure relief valve, characterized in that, Includes a pressure relief chamber (2), a pressure relief plug (3), a diaphragm (4), a pressure screw (5), a propellant chamber (6), an ignition plug (8), and an ignition electrode (9). The pressure relief chamber (2) has a cavity with side holes on both radial sides, each side hole connecting the outside to the cavity. One of the side holes is fitted with the pressure relief plug (3). The pressure relief plug (3) includes a mounting part and a shearing part located at the top of the mounting part. The lower end of the mounting part is connected to the high-pressure vessel (1), and the upper end is installed and connected to one of the side holes. The shearing part extends into the cavity. The pressure relief plug (3) has a pressure relief hole inside. One end of the pressure relief hole communicates with the high-pressure vessel (1), and the other end extends into the shearing part. The ignition plug (8) is located at one end of the pressure relief chamber (2). The propellant chamber (6), the pressure screw (5), and the diaphragm (4) are sequentially installed in the cavity. The propellant chamber (6) contains gunpowder. The front end of the ignition electrode (9) passes through the ignition plug (8) and contacts the gunpowder, while the rear end is connected to the ignition device. The pressure screw (5) has a through hole along the axial direction. The rear end of the diaphragm (4) is limited to the first stepped surface of the cavity. When the gunpowder is ignited, the high-pressure gas passes through the through hole and can shear and destroy the rear end of the diaphragm (4), and continue to push the front end of the diaphragm (4) forward in the cavity to break the shearing part.

2. The remote-controlled automatic pressure relief valve according to claim 1, characterized in that, The diaphragm (4) has a skirt structure at its rear end, which is abutted against the first step surface in the middle of the pressure relief chamber (2) by the pressure screw (5), and the front end has a protruding structure that fits with the cavity of the pressure relief chamber (2) with a gap.

3. The remote-controlled automatic pressure relief valve according to claim 1, characterized in that, The front end of the ignition electrode (9) is installed at the rear end of the medicine chamber (6) through the internal through hole of the ignition plug (8).

4. The remote-controlled automatic pressure relief valve according to claim 1, characterized in that, It also includes a gasket (7), and the ignition plug (8) is threadedly connected to the opening at the rear end of the cavity. The front end of the ignition plug (8) abuts the gasket (7) for sealing against the second step surface of the cavity and fixes it.

5. The remote-controlled automatic pressure relief valve according to claim 1, characterized in that, The pressure screw (5) has a cylindrical through hole at the front end and an internal hexagon countersunk hole at the rear end. The pressure screw (5) is threadedly connected to the pressure relief chamber (2).

6. The remote-controlled automatic pressure relief valve according to claim 1, characterized in that, The pressure relief plug (3) is threadedly connected to the pressure relief chamber (2), and the shearing part has a pre-cut groove to facilitate shearing and destruction to achieve the pressure relief function.

7. The remote-controlled automatic pressure relief valve according to claim 2, characterized in that, The diaphragm (4) is made of brass.

8. The remote-controlled automatic pressure relief valve according to claim 4, characterized in that, The gasket (7) is made of copper.

9. The method of using the remote-controlled automatic pressure relief valve according to claims 1-8, characterized in that, Includes the following steps: Step 1: Install the diaphragm (4) and the pressure screw (5) in the middle of the pressure relief chamber (2), fix the diaphragm (4) against the rear end of the pressure screw (5), and place gunpowder in the gunpowder chamber (6); Step 2: Install the ignition electrode (9) into the through hole of the ignition plug (8), connect the ignition electrode (9) to the ignition device, and thread the ignition plug (8) to the pressure relief chamber (2). Step 3: Thread the pressure relief plug (3) to the pressure relief chamber (2), and install the lower end of the pressure relief plug (3) on the high-pressure vessel (1); Step four: The gunpowder in the gunpowder chamber (6) is remotely ignited by the ignition device. The gunpowder combustion generates high-pressure gas, which shears and breaks the rear end of the diaphragm (4). The front end of the diaphragm (4) moves forward and hits the shearing part of the pressure relief plug (3) to break it. The rear end of the diaphragm (4) remains at the first step surface. The gas in the high-pressure container (1) is connected to the outside through the pressure relief hole of the pressure relief plug (3) and the side hole of the pressure relief chamber (2) to relieve pressure.

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