Active explosion-proof valve electric control device

Abstract

This invention relates to the field of explosion-proof valve technology and discloses an active explosion-proof valve electrical control device, including an explosion-proof valve body. A monitoring and control component is installed on the explosion-proof valve body to control the opening and closing of the explosion-proof valve body. The monitoring and control component includes a controller and a monitoring head. A power-operated opening and closing component is installed on the explosion-proof valve body to close and open the explosion-proof valve body. The power-operated opening and closing component includes a fixed plate, rotating explosion-proof plates, a sliding column, a control rod, a large gear, a tension spring, a small gear, a worm gear self-locking motor, and an electric push rod. The two rotating explosion-proof plates are arranged in a scissor-like cross configuration, which allows the two rotating explosion-proof plates to close like scissors when the explosion-proof valve body is closed. The cross-closing action can shear the gas to a certain extent. This closing method also has less resistance. Compared with existing explosion-proof valves that use a single plate for closing, it has higher sensitivity and improved operational stability.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof valve technology, specifically to an active explosion-proof valve electrical control device. Background Technology

[0002] In the process of petroleum refining and processing, there are a large number of flammable and explosive media, such as petroleum gas and natural gas. The active explosion-proof valve electrical control device is a comprehensive device that integrates electrical control, explosion-proof protection and valve driving functions.

[0003] The electrical control device can achieve rapid and precise control of the active explosion-proof valve. Once a potential danger signal is detected (such as excessive concentration of combustible gas, excessive temperature, excessive pressure, etc.), the explosion-proof valve can be activated immediately to cut off the danger source, prevent the occurrence of an explosion accident, or limit the explosion range.

[0004] Existing explosion-proof valves generally use a single plate for closing. This method results in greater resistance when closing, leading to insufficient sensitivity in the closing operation and making it difficult to guarantee the stability of the explosion-proof valve in use. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an active explosion-proof valve electrical control device with advantages such as [missing information]. It solves the problem that existing explosion-proof valves generally use a single plate for closing, which results in high resistance during closing, leading to insufficient sensitivity in the closing operation and making it difficult to guarantee the stability of the explosion-proof valve in use.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an active explosion-proof valve electrical control device, comprising an explosion-proof valve body, wherein a monitoring and control component is provided on the explosion-proof valve body, the monitoring and control component is used to control the opening and closing of the explosion-proof valve body, and the monitoring and control component includes a controller and a monitoring head;

[0009] The explosion-proof valve body is equipped with a power opening and closing assembly, which is used to close and open the explosion-proof valve body. The power opening and closing assembly includes a fixed plate, a rotating explosion-proof plate, a sliding column, a control rod, a large gear, a tension spring, a small gear, a worm gear self-locking motor, and an electric push rod.

[0010] Two buffer components are provided on the fixed plate. The buffer components include a third fixed post, a rubber buffer sleeve and a spring plate.

[0011] The fixing plate in the power opening and closing assembly is fixedly connected to the explosion-proof valve body, and the two sides of the fixing plate are fixedly connected to the corresponding inner wall of the explosion-proof valve body with the first fixing column.

[0012] Two rotating explosion-proof plates are rotatably connected to the outer surfaces of the two first fixed columns. The edge contours of the two rotating explosion-proof plates are adapted to the inner wall of the explosion-proof valve body. The two rotating explosion-proof plates are arranged in a scissor-like cross shape.

[0013] Preferably, each of the two rotating explosion-proof plates has a first sliding groove on its opposite side, and a slider is slidably connected in each of the two first sliding grooves. The two ends of the sliding column are respectively rotatably connected to the corresponding slider.

[0014] Preferably, the outer surface of the explosion-proof valve body is provided with a gear movable groove, and two fixed seats are fixedly connected to the outer surface of the explosion-proof valve body, and a second fixed column is rotatably connected between the two fixed seats.

[0015] Preferably, the large gear is fixedly connected to the outer surface of the second fixed column, the large gear is located in the gear movable groove, the control rod is fixedly connected to the large gear, the outer surface of the control rod is provided with a second sliding groove, and the sliding column is slidably connected to the inner wall of the second sliding groove.

[0016] Preferably, the tension spring is fixedly connected between the fixed plate and the control rod, and the tension spring is used to drive the control rod to close. A slide rail frame plate is fixedly connected to the outer surface of the explosion-proof valve body, and a sliding gear seat is slidably connected inside the slide rail frame plate. The electric push rod is fixedly connected inside the slide rail frame plate, and the output end of the electric push rod is fixedly connected to the sliding gear seat.

[0017] Preferably, a small gear is rotatably connected inside the sliding gear seat, and the small gear meshes with the large gear. A worm gear self-locking motor is fixedly installed on the outer surface of the sliding gear seat. The worm gear self-locking motor is a worm gear reducer motor with a certain self-locking property.

[0018] Preferably, the output shaft of the worm gear self-locking motor is fixedly connected and inserted into the pinion, and a housing for protecting the operation of the transmission mechanism is fixedly installed on the outer surface of the explosion-proof valve body.

[0019] Preferably, the third fixed post in the buffer assembly is fixedly connected to the outer surface of the fixed plate, the spring plate is fixedly connected to the outer surface of the third fixed post, the spring plate is used to buffer the rotating explosion-proof plate, and the outer surface of the third fixed post is fixedly sleeved with a rubber buffer sleeve for shock absorption of the rotating explosion-proof plate.

[0020] Preferably, in the monitoring and control assembly, the controller is fixedly connected to the outer surface of the explosion-proof valve body, the controller is electrically connected to the worm gear self-locking motor, and the controller is electrically connected to the electric push rod;

[0021] The controller is equipped with a monitoring head for detecting the gas conditions inside the explosion-proof valve. The monitoring head extends into the explosion-proof valve body. The controller is also equipped with a touch screen for controlling and displaying parameters.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, the present invention provides an active explosion-proof valve electrical control device, which has the following beneficial effects:

[0024] 1. The electrical control device of this active explosion-proof valve uses two rotating explosion-proof plates arranged in a scissor-like cross configuration. This allows the two rotating explosion-proof plates to close like scissors when the explosion-proof valve body is closed. The cross-closing action can shear the gas to a certain extent. This closing method also has less resistance. Compared with the existing explosion-proof valves that use a single plate to close, it has higher sensitivity and improves operational stability.

[0025] 2. When the active explosion-proof valve's electrical control device detects excessive gas concentration, temperature, or pressure through its monitoring head, the controller sends a signal to the electric actuator. The output of the electric actuator then drives the sliding gear seat to move backward within the slide rail frame. At this point, the small gear on the sliding gear seat disengages from the large gear. The large gear, separated from the small gear, rotates rapidly under the contraction force of the tension spring on the control rod. This causes the control rod and the large gear to rotate at a fixed angle around the axis of the second fixed column. The rotating control rod then moves the sliding column simultaneously through the second sliding groove. As the sliding column moves, it drives two rotating explosion-proof plates to rotate relative to each other via two sliders on it. This allows the sliders to slide within the first sliding groove, causing the two rotating explosion-proof plates to close rapidly, effectively isolating potentially dangerous gases or substances and preventing further diffusion or larger safety accidents, thus improving the safety of the equipment and the environment.

[0026] 3. The electrical control device of this active explosion-proof valve starts the electric push rod through the controller. The electric push rod drives the sliding gear seat to move until the small gear meshes with the large gear. At this time, the worm gear self-locking motor is started. The output shaft of the worm gear self-locking motor drives the large gear and the control rod on it to rotate through the small gear, thereby stretching and deforming the tension spring. This allows the rotating control rod to open the two rotating explosion-proof plates. The entire opening process is completed automatically by the controller controlling the electric push rod and the worm gear self-locking motor. No manual operation is required, which simplifies the operation process and improves the convenience of operation.

[0027] 4. The active explosion-proof valve electrical control device has a self-locking function through the worm gear self-locking motor. It can maintain its current position when the power supply is stopped, effectively preventing the explosion-proof plate from accidentally closing due to external factors. This improves the stability and reliability of the entire system and enhances the reliability of the mechanism.

[0028] 5. The active explosion-proof valve electrical control device, when the two rotating explosion-proof plates are closed, rotates until the two rotating explosion-proof plates contact the corresponding spring plates in the buffer assembly. At this time, the rotating explosion-proof plates will cause the spring plates to undergo elastic deformation. The elastically deformed spring plates can offset part of the force transmitted from the tension spring to the rotating explosion-proof plates until the rotating explosion-proof plates contact the rubber buffer sleeve. At this time, the rubber buffer sleeve can undergo plastic deformation, thereby offsetting the remaining impact force when the rotating explosion-proof plates close. This avoids the situation where the impact force is too large when the rotating explosion-proof plates close, which would reduce the service life of the equipment. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the present invention;

[0031] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0032] Figure 4 This is a schematic diagram of the transmission mechanism structure of the present invention;

[0033] Figure 5 This is a schematic diagram of the control rod structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the fixing plate structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the spring plate structure of the present invention.

[0036] In the diagram: 1. Explosion-proof valve body; 2. Outer shell; 3. Controller; 4. Fixing plate; 5. First fixing column; 6. Rotating explosion-proof plate; 7. First sliding groove; 8. Sliding column; 9. Sliding block; 10. Control rod; 11. Fixing seat; 12. Second fixing column; 13. Large gear; 14. Second sliding groove; 15. Gear movable groove; 16. Tension spring; 17. Slide rail frame plate; 18. Sliding gear seat; 19. Small gear; 20. Worm gear self-locking motor; 21. Third fixing column; 22. Rubber buffer sleeve; 23. Spring plate; 24. Monitoring head; 25. Electric push rod. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-7 The present invention provides a new technical solution: an active explosion-proof valve electrical control device, including an explosion-proof valve body 1, a monitoring and control component is provided on the explosion-proof valve body 1, the monitoring and control component is used to control the opening and closing of the explosion-proof valve body 1, and the monitoring and control component includes a controller 3 and a monitoring head 24.

[0039] The explosion-proof valve body 1 is equipped with a power opening and closing assembly, which is used to close and open the explosion-proof valve body 1. The power opening and closing assembly includes a fixed plate 4, a rotating explosion-proof plate 6, a sliding column 8, a control rod 10, a large gear 13, a tension spring 16, a small gear 19, a worm gear self-locking motor 20, and an electric push rod 25.

[0040] Two buffer components are provided on the fixed plate 4. The buffer components include a third fixed post 21, a rubber buffer sleeve 22 and a spring plate 23.

[0041] The fixing plate 4 in the power opening and closing assembly is fixedly connected inside the explosion-proof valve body 1, and the two sides of the fixing plate 4 are fixedly connected to the corresponding inner wall of the explosion-proof valve body 1 with the first fixing column 5.

[0042] Two rotating explosion-proof plates 6 are rotatably connected to the outer surfaces of the two first fixed columns 5 respectively. The edge contours of the two rotating explosion-proof plates 6 are adapted to the inner wall of the explosion-proof valve body 1. The two rotating explosion-proof plates 6 are arranged in a scissor-like cross shape.

[0043] Furthermore, each of the two rotating explosion-proof plates 6 has a first groove 7 on its opposite side, and a slider 9 is slidably connected in each of the two first grooves 7. The two ends of the sliding column 8 are rotatably connected to the corresponding slider 9.

[0044] Furthermore, a gear movable groove 15 is provided on the outer surface of the explosion-proof valve body 1, and two fixed seats 11 are fixedly connected to the outer surface of the explosion-proof valve body 1. A second fixed column 12 is rotatably connected between the two fixed seats 11.

[0045] Furthermore, the large gear 13 is fixedly connected to the outer surface of the second fixed column 12. The large gear 13 is located in the gear movable groove 15. The control rod 10 is fixedly connected to the large gear 13. The outer surface of the control rod 10 is provided with a second sliding groove 14. The sliding column 8 is slidably connected to the inner wall of the second sliding groove 14.

[0046] Furthermore, the tension spring 16 is fixedly connected between the fixed plate 4 and the control rod 10. The tension spring 16 is used to drive the control rod 10 to close. The outer surface of the explosion-proof valve body 1 is fixedly connected to the slide rail frame plate 17. The slide rail frame plate 17 is slidably connected to the slide gear seat 18. The electric push rod 25 is fixedly connected to the slide rail frame plate 17. The output end of the electric push rod 25 is fixedly connected to the slide gear seat 18.

[0047] Furthermore, a small gear 19 is rotatably connected inside the sliding gear seat 18, and the small gear 19 meshes with the large gear 13. A worm gear self-locking motor 20 is fixedly installed on the outer surface of the sliding gear seat 18. The worm gear self-locking motor 20 is a worm gear reducer motor with a certain self-locking property.

[0048] Furthermore, the output shaft of the worm gear self-locking motor 20 is fixedly connected and inserted into the pinion 19, and the outer surface of the explosion-proof valve body 1 is fixedly fitted with a housing 2 for protecting the operation of the transmission mechanism.

[0049] Furthermore, the third fixed post 21 in the buffer assembly is fixedly connected to the outer surface of the fixed plate 4, and the spring plate 23 is fixedly connected to the outer surface of the third fixed post 21. The spring plate 23 is used to buffer the rotating explosion-proof plate 6, and the outer surface of the third fixed post 21 is fixedly sleeved with a rubber buffer sleeve 22 for shock absorption of the rotating explosion-proof plate 6.

[0050] Furthermore, the controller 3 in the monitoring and control assembly is fixedly connected to the outer surface of the explosion-proof valve body 1. The controller 3 is electrically connected to the worm gear self-locking motor 20 and the electric push rod 25.

[0051] The controller 3 is equipped with a monitoring head 24 for detecting the gas condition inside the explosion-proof valve body 1. The monitoring head 24 extends into the explosion-proof valve body 1. The controller 3 is also equipped with a touch screen for controlling and displaying parameters.

[0052] Furthermore, during use, when the monitoring head 24 detects excessive gas concentration, excessive temperature, or excessive pressure, the controller 3 sends a signal to the electric push rod 25. At this time, the output end of the electric push rod 25 drives the sliding gear seat 18 to move backward within the slide rail frame plate 17. At this time, the small gear 19 on the sliding gear seat 18 can disengage from the large gear 13. The large gear 13, separated from the small gear 19, will rotate rapidly under the contraction force of the tension spring 16 on the control rod 10. This causes the control rod 10 and the large gear 13 to rotate at a fixed angle around the axis of the second fixed column 12. This allows the rotating control rod 10 to drive the sliding column 8 to move simultaneously through the second slide groove 14. When the sliding column 8 moves, it can drive the two rotating explosion-proof plates 6 to rotate relative to each other through the two sliders 9 on it. This allows the sliders 9 to slide within the first slide groove 7, thereby causing the two rotating explosion-proof plates 6 to close quickly, effectively isolating potential dangerous gases or substances, preventing their further diffusion or causing greater safety accidents, and improving the safety of the equipment and the environment.

[0053] Furthermore, when opening is required, the electric push rod 25 is activated by the controller 3. The electric push rod 25 drives the sliding gear seat 18 to move until the small gear 19 meshes with the large gear 13. At this time, the worm gear self-locking motor 20 is activated. The output shaft of the worm gear self-locking motor 20 drives the large gear 13 and the control rod 10 on it to rotate through the small gear 19, thereby stretching and deforming the tension spring 16, so that the rotating control rod 10 can open the two rotating explosion-proof plates 6. The entire opening process is completed automatically by the controller 3 controlling the electric push rod 25 and the worm gear self-locking motor 20, without the need for manual operation, simplifying the operation process and improving the convenience of operation.

[0054] Furthermore, the worm gear self-locking motor 20 has a self-locking function, which can maintain its current position when the power supply is stopped, effectively preventing the explosion-proof plate 6 from being accidentally closed due to external factors. This improves the stability and reliability of the entire system and enhances the reliability of the mechanism.

[0055] Furthermore, when the two rotating explosion-proof plates 6 are closed, the system is designed to rotate until the two rotating explosion-proof plates 6 rotate to contact the corresponding spring plates 23 in the buffer assembly. At this time, the rotating explosion-proof plates 6 will cause the spring plates 23 to undergo elastic deformation. The elastically deformed spring plates 23 can offset part of the force transmitted from the tension spring 16 to the rotating explosion-proof plates 6, until the rotating explosion-proof plates 6 contact the rubber buffer sleeve 22. At this time, the rubber buffer sleeve 22 can undergo plastic deformation, thereby offsetting the remaining impact force when the rotating explosion-proof plates 6 are closed. This avoids the situation where the impact force is too large when the rotating explosion-proof plates 6 are closed, which would reduce the service life of the equipment.

[0056] Furthermore, by setting the two rotating explosion-proof plates 6 in a scissor-like cross arrangement, the two rotating explosion-proof plates 6 can close like scissors when the explosion-proof valve body 1 is closed, and the cross-closing action can shear the gas to a certain extent. This closing method also has less resistance. Compared with the existing explosion-proof valves that use a single plate to close, it has higher sensitivity and improves operational stability.

[0057] Working principle: When the monitoring head 24 detects excessive gas concentration, excessive temperature, or excessive pressure, the controller 3 sends a signal to the electric push rod 25. At this time, the output end of the electric push rod 25 will drive the sliding gear seat 18 to move backward in the slide rail frame plate 17. At this time, the small gear 19 on the sliding gear seat 18 can disengage from the large gear 13. The large gear 13, which is separated from the small gear 19, will rotate rapidly under the contraction force of the tension spring 16 on the control rod 10. This will drive the control rod 10 and the large gear 13 to rotate at a fixed angle around the axis of the second fixed column 12. This will allow the rotating control rod 10 to drive the sliding column 8 to move simultaneously through the second slide groove 14. When the sliding column 8 moves, it can drive the two rotating explosion-proof plates 6 to rotate relative to each other through the two sliders 9 on it. This will allow the sliders 9 to slide in the first slide groove 7, thereby driving the two rotating explosion-proof plates 6 to close quickly.

[0058] Furthermore, when it is necessary to open, the electric push rod 25 is activated by the controller 3. The electric push rod 25 drives the sliding gear seat 18 to move until the small gear 19 meshes with the large gear 13. At this time, the worm gear self-locking motor 20 is activated. The output shaft of the worm gear self-locking motor 20 drives the large gear 13 and the control rod 10 on it to rotate through the small gear 19, thereby stretching and deforming the tension spring 16, so that the rotating control rod 10 can open the two rotating explosion-proof plates 6.

[0059] Furthermore, when the two rotating explosion-proof plates 6 are closed, the system is set to rotate until the two rotating explosion-proof plates 6 rotate to contact the corresponding spring plate 23 in the buffer assembly. At this time, the rotating explosion-proof plates 6 will cause the spring plate 23 to undergo elastic deformation. The elastically deformed spring plate 23 can offset part of the force transmitted from the tension spring 16 to the rotating explosion-proof plates 6, until the rotating explosion-proof plates 6 contact the rubber buffer sleeve 22. At this time, the rubber buffer sleeve 22 can undergo plastic deformation, thereby offsetting the remaining impact force when the rotating explosion-proof plates 6 are closed.

[0060] Furthermore, by setting the two rotating explosion-proof plates 6 in a scissor-like cross arrangement, the two rotating explosion-proof plates 6 can close like scissors when the explosion-proof valve body 1 is closed, and the cross-closing action can shear the gas to a certain extent. This closing method also has less resistance and higher sensitivity compared to the existing explosion-proof valves that use a single plate to close.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An active explosion-proof valve electrical control device, characterized in that: It includes an explosion-proof valve body (1), and a monitoring and control component is provided on the explosion-proof valve body (1). The monitoring and control component is used to control the opening and closing of the explosion-proof valve body (1). The monitoring and control component includes a controller (3) and a monitoring head (24). The explosion-proof valve body (1) is provided with a power opening and closing assembly. The power opening and closing assembly is used to close and open the explosion-proof valve body (1). The power opening and closing assembly includes a fixed plate (4), a rotating explosion-proof plate (6), a sliding column (8), a control rod (10), a large gear (13), a tension spring (16), a small gear (19), a worm gear self-locking motor (20), and an electric push rod (25). Two buffer components are provided on the fixed plate (4). The buffer components include a third fixed post (21), a rubber buffer sleeve (22), and a spring plate (23). The fixing plate (4) in the power opening and closing assembly is fixedly connected inside the explosion-proof valve body (1), and the two sides of the fixing plate (4) are fixedly connected to the corresponding inner wall of the explosion-proof valve body (1) with the first fixing column (5); Two rotating explosion-proof plates (6) are rotatably connected to the outer surfaces of two first fixed columns (5). The edge contours of the two rotating explosion-proof plates (6) are adapted to the inner wall of the explosion-proof valve body (1). The two rotating explosion-proof plates (6) are arranged in a scissor-like cross configuration. Each of the two rotating explosion-proof plates (6) has a first sliding groove (7) on its opposite side. Each of the two first sliding grooves (7) has a slider (9) slidably connected in it. The two ends of the sliding column (8) are rotatably connected to the corresponding slider (9). The outer surface of the explosion-proof valve body (1) is provided with a gear movable groove (15), and two fixed seats (11) are fixedly connected to the outer surface of the explosion-proof valve body (1). A second fixed column (12) is rotatably connected between the two fixed seats (11). The large gear (13) is fixedly connected to the outer surface of the second fixed column (12). The large gear (13) is located in the gear movable groove (15). The control rod (10) is fixedly connected to the large gear (13). The outer surface of the control rod (10) is provided with a second sliding groove (14). The sliding column (8) is slidably connected to the inner wall of the second sliding groove (14). The tension spring (16) is fixedly connected between the fixed plate (4) and the control rod (10). The tension spring (16) is used to drive the control rod (10) to close. The outer surface of the explosion-proof valve body (1) is fixedly connected to the slide rail frame plate (17). The slide rail frame plate (17) is slidably connected to the slide gear seat (18). The electric push rod (25) is fixedly connected to the slide rail frame plate (17). The output end of the electric push rod (25) is fixedly connected to the slide gear seat (18). A small gear (19) is rotatably connected inside the sliding gear seat (18). The small gear (19) meshes with the large gear (13). A worm gear self-locking motor (20) is fixedly installed on the outer surface of the sliding gear seat (18). The worm gear self-locking motor (20) is a worm gear reducer motor with a certain self-locking property. The output shaft of the worm gear self-locking motor (20) is fixedly connected and inserted into the pinion (19), and the outer surface of the explosion-proof valve body (1) is fixedly fitted with a housing (2) for protecting the operation of the transmission mechanism.

2. The active explosion-proof valve electrical control device according to claim 1, characterized in that: The third fixed post (21) in the buffer assembly is fixedly connected to the outer surface of the fixed plate (4), and the spring plate (23) is fixedly connected to the outer surface of the third fixed post (21). The spring plate (23) is used to buffer the rotating explosion-proof plate (6). The outer surface of the third fixed post (21) is fixedly fitted with a rubber buffer sleeve (22) for shock absorption of the rotating explosion-proof plate (6).

3. The active explosion-proof valve electrical control device according to claim 2, characterized in that: The controller (3) in the monitoring and control assembly is fixedly connected to the outer surface of the explosion-proof valve body (1). The controller (3) is electrically connected to the worm gear self-locking motor (20) and the controller (3) is electrically connected to the electric push rod (25). The controller (3) is equipped with a monitoring head (24) for detecting the gas condition inside the explosion-proof valve body (1). The monitoring head (24) extends into the explosion-proof valve body (1). The controller (3) is equipped with a touch screen for controlling the display parameters.

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