High-temperature and high-pressure emergency cut-off valve

Abstract

The utility model discloses a high-temperature and high-pressure emergency cut-off valve, and relates to the technical field of cut-off valves. The valve comprises a valve body, a switching cavity is formed in the valve body, an oil groove penetrating through the valve body is formed in the side face of the valve body, an electric control assembly capable of electrically and manually controlling the valve is arranged on the side face of the valve body, and an auxiliary assembly capable of emergently cutting off the valve is arranged at the position, corresponding to the electric control assembly, of the other side of the valve body. According to the stop valve, when the stop valve is closed through the arranged auxiliary assembly, the auxiliary valve element is further extruded and pushed to reach the oil groove position through high-temperature influence to achieve valve closing, the response speed of valve closing can be increased, and the situation that the valve cannot be effectively closed due to insufficient elasticity of a supporting spring used for a long time can be avoided; and in addition, a matching block in the arranged auxiliary assembly can be matched to support and extrude the sealing plate, so that the sealing performance between the switching cavity and the oil groove is further enhanced, an oil way can be effectively and completely cut off in a fire disaster, and safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of shut-off valve technology, specifically to a high-temperature and high-pressure emergency shut-off valve. Background Technology

[0002] A shut-off valve is a device used in a fluid system to control the direction, pressure, and flow rate of a fluid. It has functions such as guiding, shutting off, throttling, checking back, diverting, or overflowing and relieving pressure. The opening and closing operations of existing valve actuators are mainly divided into electric and manual types. When a fire occurs in the environment in which the valve is used and the medium being transported in the valve body is a flammable medium, it is necessary to quickly shut off the medium being transported in the valve body to prevent secondary explosions.

[0003] The existing publication (announcement) number: CN111396589B, discloses a high-temperature hard-seal fixed ball valve with emergency shut-off function, including a valve body and a flow channel and mounting groove disposed inside the valve body. A valve seat is provided in the mounting groove. A valve stem is mounted on the valve body and passes through the valve body. One end of the valve stem inside the valve body has a ball that cooperates with the valve seat to form a seal. The ball divides the flow channel into an inlet channel and an outlet channel. A baffle plate is hinged in the outlet channel, which can rotate under the impact of the medium and can seal the outlet channel during rotation. A linkage assembly is provided on the valve body. A limit block that can be melted at high temperature and is used by the linkage assembly to restrict the rotation of the baffle plate. When the baffle plate is restricted by the linkage assembly, the outlet channel is in a conductive state. This invention has the following advantages and effects: it can achieve automatic emergency shut-off, thereby improving the safety factor of the valve, and also has advantages such as low torque, good sealing performance, and long service life.

[0004] The above solution uses the limit block inside the linkage component to lose its constraint on the swing arm due to heat, so that the fluid guided by the impact gap can rotate the diaphragm and block it. However, when the diaphragm is isolated by the diaphragm, one side of the diaphragm is squeezed by the fluid, but the rotation of the diaphragm itself depends on the fluid impact. When the impact force is insufficient, it cannot effectively and quickly isolate the inside of the valve. Therefore, a high temperature and high pressure emergency shut-off valve is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a high-temperature and high-pressure emergency shut-off valve to solve the problem of high-temperature and high-pressure emergency shut-off valves.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A high-temperature and high-pressure emergency shut-off valve includes a valve body, a switching chamber inside the valve body, an oil groove through the valve body on the side of the valve body, an electric control component that can control the valve electrically and manually on the side of the valve body, and an auxiliary component that can shut off the valve in an emergency on the other side of the valve body corresponding to the position of the electric control component.

[0008] The electronic control assembly includes an electronic control cylinder, inside which is a magnetically controllable electromagnetic coil. Inside the electromagnetic coil is a guide rod, on the side of the guide rod is a valve core, and on the side of the valve core is a manually movable lever.

[0009] The auxiliary component includes a mating groove, inside which is a movable mating block, and on the side of the mating block is a limit block that can be limited and released.

[0010] Furthermore, the electronic control assembly includes an electronic control cylinder fixedly installed on the side of the valve body, an electromagnetic coil disposed inside the electronic control cylinder, a constraint cavity opened on the side of the valve body, a valve core movably installed inside the switching cavity, a support spring fixedly connected between the side of the valve core and the inner wall of the constraint cavity, and a guide rod movably installed inside the center of the electromagnetic coil.

[0011] Furthermore, the electronic control assembly also includes a manual slot formed on the side of the electronic control cylinder, a manual lever threaded inside the manual lever, a sealing plate fixedly sleeved on the side of the valve core, and a sealing block fixedly sleeved on the side of the valve core.

[0012] Furthermore, the constraint cavity extends through the valve body to the inside of the switching cavity, the valve core is movably installed inside the constraint cavity, the support spring is movably sleeved on the side of the valve core, the guide rod extends to the inside of the constraint cavity, the manual lever extends to the inside of the electric control cylinder, and the sealing block is fitted and supported on the side of the sealing plate.

[0013] Furthermore, the auxiliary component includes a mating groove formed inside the valve body, the inner wall of the mating groove having a slot, a mating block being movably installed inside the mating groove, a support cylinder being fixedly connected between the side of the mating block and the inner wall of the mating groove, a connecting block being fixedly installed on the side of the mating block, and a limiting block being movably installed inside the connecting block.

[0014] Furthermore, the mating block is inserted into the slot. The mating block is a round elastic plastic block with a hollowed-out side and a comb-like shape on the side of the mating block near the slot. The support cylinder is a round spring steel cylinder with a continuous "W" shaped cross-section. The connecting block extends through the valve body. The limiting block is attached to the side of the valve body and is a cylindrical block made of thermal element material.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model, through its electronic control components, enables both electric and manual opening and closing of the shut-off valve during normal use. Simultaneously, these components can be actively or passively controlled during a fire, de-energizing the internal electromagnetic coil to close the shut-off valve. At the same time, an auxiliary component, through high temperature, further compresses and pushes the auxiliary valve core to the oil tank position to achieve valve closure. This improves the valve's closing response speed and avoids the situation where the support spring becomes insufficiently elastic after prolonged use, preventing effective valve closure. Furthermore, the mating block inside the auxiliary component supports and compresses the sealing plate, further strengthening the seal between the switching chamber and the oil tank, ensuring effective and complete oil circuit cutoff during a fire and guaranteeing safety. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a partial structural schematic diagram of the valve body of this utility model;

[0019] Figure 3 This is a partial exploded structural diagram of the electronic control component of this utility model;

[0020] Figure 4 This is a utility model Figure 2 Enlarged structural diagram at point A;

[0021] Figure 5 This is a partial exploded structural diagram of the auxiliary component of this utility model.

[0022] Reference numerals: 1. Valve body; 2. Switching chamber; 3. Oil tank; 4. Electrical control assembly; 401. Electrical control cylinder; 402. Electromagnetic coil; 403. Constraint chamber; 404. Valve core; 405. Support spring; 406. Guide rod; 407. Manual groove; 408. Manual lever; 409. Sealing plate; 410. Sealing block; 5. Auxiliary assembly; 501. Mating groove; 502. Slot; 503. Mating block; 504. Support cylinder; 505. Connecting block; 506. Limiting block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figures 1 to 2 As shown, a high-temperature and high-pressure emergency shut-off valve includes a valve body 1, which is rectangular. A switching chamber 2 is provided inside the valve body 1. The switching chamber 2 is a cylindrical cavity. An oil groove 3 is provided on the side of the valve body 1, passing through the switching chamber 2. The oil groove 3 is a cylindrical groove. An electric control component 4 that can control the valve electrically and manually is provided on the side of the valve body 1. An auxiliary component 5 that can shut off the valve in an emergency is provided on the other side of the valve body 1, corresponding to the position of the electric control component 4.

[0028] Specifically, the electronic control component 4 can be manually and electrically controlled to enable the switching chamber 2 to close and connect. The oil tank 3 is connected to oil pipelines on both sides. The auxiliary component 5 can provide emergency assistance to close the switching chamber 2 in high-temperature conditions and further improve the sealing effect of the oil tank 3, thereby achieving rapid valve closure and improving sealing performance.

[0029] like Figure 2 , Figure 3As shown, the electronic control assembly 4 includes an electronic control cylinder 401 fixedly installed on the side of the valve body 1. The electronic control cylinder 401 is a hollow cylindrical cylinder with an electronic control module installed on one side. An electromagnetic coil 402 is arranged inside the electronic control cylinder 401. A constraint cavity 403 is opened on the side of the valve body 1 corresponding to the position of the electronic control cylinder 401, and the constraint cavity 403 penetrates the valve body 1 to the inside of the switching cavity 2. The constraint cavity 403 is a cylindrical cavity with a cross-shaped cross section. A valve core 404 is movably installed inside the switching cavity 2 and is movably installed inside the constraint cavity 403. The valve core 404 is a cylindrical core with an I-shaped cross section. A support spring 405 is fixedly connected between the side of the valve core 404 and the inner wall of the constraint cavity 403, and the support spring 405 is movably sleeved on the side of the valve core 404. At the center of the electromagnetic coil 402 An internally movable guide rod 406 is installed and extends into the constraint cavity 403. The guide rod 406 is a cylindrical rod with a convex cross-section. A manual groove 407 is provided through the side of the electric control cylinder 401. The manual groove 407 is a circular threaded groove. A manual rod 408 is installed internally and extends into the electric control cylinder 401. The manual rod 408 is a T-shaped cylindrical threaded rod with a cross-shaped groove on its side. A sealing plate 409 is fixedly sleeved on the side of the valve core 404. The sealing plate 409 is a rubber ring plate with an L-shaped cross-section. A sealing block 410 is fixedly sleeved on the side of the valve core 404 and fits and supports the side of the sealing plate 409. The sealing block 410 is a rubber ring block.

[0030] Specifically, the electromagnetic coil 402 is energized by the control module of the electric control cylinder 401. The electromagnetic coil 402 generates a magnetic field that pushes the guide rod 406 to slide inside the control cylinder 401 into the constraint cavity 403. The guide rod 406 pushes the valve core 404 to compress the support spring 405 and deform it away from the oil groove 3. This connects the oil groove 3 with the switching cavity 2 and opens the oil circuit. Conversely, when the electromagnetic coil 402 is not energized, the valve core 404 slides inside the switching cavity 2 to the oil groove 3 under the elastic support of the support spring 405, thus closing the oil circuit and preventing the connection between the oil groove 3 and the switching cavity 2. The sealing plate 409 provides an elastic seal to the side of the valve core 404, and the sealing block 410 provides some support to the sealing plate 409. The above achieves the opening and closing of the electrically controlled shut-off valve. The above operation can also be manually achieved by rotating the guide rod 406 inside the manual groove 407 using a tool, thus manually opening and closing the oil circuit.

[0031] like Figure 2 , Figure 4 and Figure 5As shown, the auxiliary component 5 includes a mating groove 501 located inside the valve body 1 corresponding to the position of the switching chamber 2, with the mating groove 501 being away from the position of the electric control cylinder 401. The mating groove 501 is a cylindrical groove. A series of equally spaced slots 502, penetrating the valve body 1 and extending into the switching chamber 2, are circumferentially arranged on the inner wall of the mating groove 501. The slots 502 are arc-shaped. A mating block 503 is movably installed inside the mating groove 501, inserted into the slot 502. The mating block 503 is a round, elastic plastic block with a hollowed-out side, and is close to the slot 502. The side of 2 is comb-shaped. A support cylinder 504 is fixedly connected between the side of the mating block 503 and the inner wall of the mating groove 501. The support cylinder 504 is a spring steel cylinder with a continuous "W" shaped cross section. A connecting block 505 is fixedly installed on the side of the mating block 503 away from the valve core 404 and extends through the valve body 1. The connecting block 505 is a rectangular block with a circular groove on the side. A limiting block 506 is movably installed inside the connecting block 505 and fits against the side of the valve body 1. The limiting block 506 is a cylindrical block made of thermal element material.

[0032] Specifically, during a fire at high temperatures, the electric control cylinder 401 actively or passively de-energizes the electromagnetic coil 402, thereby closing the valve by completing the operation between the closed oil tank 3 and the switching chamber 2. The limit block 506 is physically broken due to the high temperature, and the connecting block 505 loses its limit. The support cylinder 504 pulls the mating block 503 to slide inside the mating groove 501. The mating block 503 is constrained and pressed against the side of the sealing block 410 by the slot 502. The auxiliary valve core 404 slides completely to the position of the oil tank 3. At the same time, the mating block 503 deforms the sealing block 410 and inserts it into the position of the sealing plate 409. The mating block 503 further presses the sealing plate 409 tightly against the inner wall of the switching chamber 2, strengthening the sealing between the switching chamber 2 and the oil tank 3.

[0033] In summary: The electrical control component 4 enables both electric and manual opening and closing of the shut-off valve during normal use. Simultaneously, the electrical control component 4 can be actively or passively controlled during a fire, de-energizing the internal electromagnetic coil 402 to close the shut-off valve. At the same time, the auxiliary component 5, through high temperature, further compresses and pushes the auxiliary valve core 404 to the oil tank 3 to achieve valve closure. This improves the valve closing response speed and avoids the situation where the support spring 405 becomes insufficiently elastic after prolonged use, preventing effective valve closure. Furthermore, the mating block 503 inside the auxiliary component 5 supports and compresses the sealing plate 409, further strengthening the seal between the switching chamber 2 and the oil tank 3, ensuring effective and complete oil circuit cutoff during a fire and guaranteeing safety.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high temperature and high pressure emergency shut-off valve, comprising a valve body (1), a switching chamber (2) is provided inside the valve body (1), an oil groove (3) is provided through the side of the valve body (1), an electric control component (4) for electrically and manually controlling the valve is provided on the side of the valve body (1), and an auxiliary component (5) for emergency shut-off valve is provided on the other side of the valve body (1) corresponding to the position of the electric control component (4). Its features are, The electronic control assembly (4) includes an electronic control cylinder (401), inside which is a magnetically controllable electromagnetic coil (402), inside which is a guide rod (406), on the side of the guide rod (406) is a valve core (404), and on the side of the valve core (404) is a manually movable lever (408). The auxiliary component (5) includes a mating groove (501), a movable mating block (503) is provided inside the mating groove (501), and a limiting block (506) that can be limited and released is provided on the side of the mating block (503).

2. The high-temperature and high-pressure emergency shut-off valve according to claim 1, characterized in that, The electronic control assembly (4) includes an electronic control cylinder (401) fixedly installed on the side of the valve body (1), an electromagnetic coil (402) disposed inside the electronic control cylinder (401), a constraint cavity (403) opened on the side of the valve body (1), a valve core (404) movably installed inside the switching cavity (2), a support spring (405) fixedly connected between the side of the valve core (404) and the inner wall of the constraint cavity (403), and a guide rod (406) movably installed inside the center of the electromagnetic coil (402).

3. The high-temperature and high-pressure emergency shut-off valve according to claim 2, characterized in that, The electronic control assembly (4) also includes a manual slot (407) opened on the side of the electronic control cylinder (401), a manual lever (408) threaded inside the manual lever (408), a sealing plate (409) fixedly sleeved on the side of the valve core (404), and a sealing block (410) fixedly sleeved on the side of the valve core (404).

4. The high-temperature and high-pressure emergency shut-off valve according to claim 3, characterized in that, The constraint cavity (403) extends through the valve body (1) to the inside of the switching cavity (2). The valve core (404) is movably installed inside the constraint cavity (403). The support spring (405) is movably sleeved on the side of the valve core (404). The guide rod (406) extends to the inside of the constraint cavity (403). The manual lever (408) extends to the inside of the electric control cylinder (401). The sealing block (410) is fitted and supported on the side of the sealing plate (409).

5. A high-temperature and high-pressure emergency shut-off valve according to claim 1, characterized in that, The auxiliary component (5) includes a mating groove (501) inside the valve body (1), a slot (502) is provided on the inner wall of the mating groove (501), a mating block (503) is movably installed inside the mating groove (501), a support cylinder (504) is fixedly connected between the side of the mating block (503) and the inner wall of the mating groove (501), a connecting block (505) is fixedly installed on the side of the mating block (503), and a limiting block (506) is movably installed inside the connecting block (505).

6. A high-temperature and high-pressure emergency shut-off valve according to claim 5, characterized in that, The mating block (503) is inserted into the slot (502). The mating block (503) is a round block of elastic plastic material with a hollow side and the side of the mating block (503) near the slot (502) is comb-shaped. The support cylinder (504) is a round cylinder of spring steel with a continuous "W" shaped cross section. The connecting block (505) extends through the valve body (1). The limiting block (506) is attached to the side of the valve body (1). The limiting block (506) is a cylindrical block of thermal element material.

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