Chemical plant gas leakage prevention and control device
By designing a probe structure that is liftable and easy to disassemble, the problems of poor detection adaptability and cumbersome maintenance of traditional chemical plant gas leak prevention and control devices are solved. This enables rapid probe replacement, improves detection accuracy, and reduces equipment downtime costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional chemical plant gas leak prevention and control devices have poor detection adaptability, and probe maintenance and replacement are cumbersome, affecting stable equipment operation and increasing downtime costs.
A probe structure that is height-adjustable and easy to disassemble is designed. The probe can be flexibly adjusted and quickly replaced through telescopic and disassembly components, including the connecting rope in the telescopic component and the fixing ball and sliding column in the disassembly component, which simplifies the installation and disassembly process of the probe.
It improves the detection accuracy and sensitivity of the probe, reduces maintenance time, lowers equipment downtime costs, and ensures the continuous and stable operation of the detection function.
Smart Images
Figure CN224080004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical process equipment and technology, and in particular to a gas leakage prevention and control device for chemical plants. Background Technology
[0002] In chemical production processes, gas leaks pose a serious threat to safe production and environmental safety. Chemical plants involve numerous complex chemical reactions that produce various gases with flammable, explosive, toxic, and harmful properties. Once a gas leak occurs, it can not only cause serious accidents such as explosions and fires, threatening personnel lives, but also pollute the surrounding environment, causing incalculable losses. Therefore, gas leak prevention and control devices in chemical plants play a crucial role in the chemical production process. They are key equipment for ensuring the stable operation of chemical production and maintaining the safety of personnel and the environment.
[0003] Currently, most common gas leak prevention and control devices in chemical plants adopt relatively traditional designs in terms of mechanical structure and technical principles. The detection probe is usually fixed in a specific location and relies on simple gas sensing elements to monitor the gas concentration in the surrounding environment. When the gas concentration exceeds a preset threshold, an alarm device is triggered by an electrical signal to issue an alarm. In terms of probe maintenance, it is generally necessary to disassemble a part of the entire prevention and control device in a complex manner in order to replace or maintain the probe. This operation relies on many professional tools and complicated procedures.
[0004] However, this traditional gas leak prevention and control device has shortcomings. In actual chemical production, due to the complex and diverse layout of production equipment, gas leak points may appear at different heights and locations. The fixed installation method of the probes in the existing devices makes their detection adaptability poor. At the same time, the traditional probe maintenance and replacement methods are extremely cumbersome, which not only leads to long maintenance time, but also significantly increases the equipment downtime costs. Once the probe malfunctions or needs calibration, the long maintenance work will affect the continuous and stable operation of the detection function of the prevention and control device, making it difficult to monitor gas leaks in a timely and effective manner, which poses a great threat to the safe production of chemical plants. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a gas leak prevention and control device for chemical plants, which aims to improve the problems of inconvenient maintenance, poor detection adaptability, and cumbersome probe maintenance and replacement operations of traditional gas leak prevention and control devices.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a gas leak prevention and control device for chemical plants, comprising a device body, a display screen on the outer wall of the device body, a connecting pipe fixedly connected to the upper surface of the device body, a hanging rope fixedly connected to one end of the connecting pipe, an alarm fixedly connected to the other end of the connecting pipe, a fixing pipe fixedly connected to the lower surface of the device body, a fixing cover fixedly connected to the lower surface of the fixing pipe, a telescopic component provided on the inner wall of the fixing cover, and a disassembly component provided below the fixing cover;
[0007] The disassembly assembly includes a connecting cover, which is located below the fixed cover. A fixed shaft is threadedly connected to the outer wall of the connecting cover, and a spring is fixedly connected to the inner wall of the connecting cover. A sliding column is fixedly connected to one end of the spring, and a push plate is fixedly connected to one end of the sliding column. A fixed shaft is slidably connected to the lower surface of the push plate. A slot is provided on the outer wall of the fixed shaft. A probe is fixedly connected to one end of the fixed shaft. A fixed ball is slidably connected to the inner wall of the connecting cover.
[0008] Furthermore, the telescopic component includes a connecting rope, the outer wall of which is disposed on the inner wall of the fixed cover, a rotating shaft is attached to the outer wall of the connecting rope, a gear is fixedly connected to one end of the rotating shaft, a crank is fixedly connected to the other end of the rotating shaft, a connecting shaft is fixedly connected to the inner wall of the fixed cover, and a fixed rod is rotatably connected to the outer wall of the connecting shaft.
[0009] Furthermore, the outer wall of the fixing rod is attached to the inner wall of the gear, and the fixing rod is used to limit the position of the gear.
[0010] Furthermore, the outer wall of the rotating shaft is rotatably connected to the inner wall of the fixed cover, and the rotating shaft is used to drive the connecting rope to move up and down.
[0011] Furthermore, the outer wall of the gear is disposed on the inner wall of the fixed cover, and the gear is used to limit the rotation shaft.
[0012] Furthermore, the sliding column is slidably connected to the inner wall of the connecting cover, and the sliding column is used to push the push plate.
[0013] Furthermore, the outer wall of the fixed ball is slidably connected to the inner wall of the slot, and the fixed ball is used to fix the second fixed shaft.
[0014] Furthermore, the inner wall of the fixed shaft is slidably connected to the outer wall of the fixed ball, and the fixed shaft is used to compress the fixed ball.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, by rotating the first fixed shaft, the fixed ball is no longer compressed, and thus the second fixed shaft is no longer fixed. The spring pushes the sliding column and the pushing plate, which in turn moves the second fixed shaft and the probe downward to achieve disassembly. The installation is done in reverse. This solves the problems of inconvenient maintenance, poor detection adaptability, and cumbersome probe maintenance and replacement in traditional gas leak prevention and control devices. It achieves the goal of quick disassembly and installation of the probe, reduces maintenance time, lowers equipment downtime costs, improves the maintenance efficiency of the prevention and control device, and ensures the continuous and stable operation of the detection function.
[0017] 2. In this utility model, by turning the crank handle, the shaft is driven to raise and lower the connecting rope. After reaching the appropriate position, the fixing rod locks the gear to restrict the rotation of the shaft. This telescopic component can flexibly adjust the probe height to adapt to different detection scenarios, enabling the probe to get closer to the leak source more accurately, improving the accuracy and sensitivity of the detection, and achieving the effect of more efficient monitoring of gas leaks and timely detection of hidden dangers, thereby effectively reducing the risk of safety accidents caused by gas leaks. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the chemical plant gas leakage prevention and control device proposed in this utility model.
[0019] Figure 2 This is a schematic diagram of the spring section of the chemical plant gas leakage prevention and control device proposed in this utility model.
[0020] Figure 3 This is a schematic diagram of the fixed cover part of the chemical plant gas leakage prevention and control device proposed in this utility model;
[0021] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.
[0022] Legend:
[0023] 1. Device body; 2. Alarm; 3. Connecting pipe; 4. Hanging rope; 5. Probe; 6. Fixing pipe; 7. Crank handle; 8. Fixing cover; 9. Connecting cover; 10. Fixing shaft one; 11. Fixing shaft two; 12. Spring; 13. Sliding column; 14. Push plate; 15. Fixing ball; 16. Slot; 17. Connecting rope; 18. Rotating shaft; 19. Gear; 20. Connecting shaft; 21. Fixing rod; 22. Display screen. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figure 1 - Figure 2 An embodiment of this utility model provides a gas leak prevention and control device for chemical plants, including a device body 1. A display screen 22 is provided on the outer wall of the device body 1 to display the gas leak status. A connecting pipe 3 is fixedly connected to the upper surface of the device body 1. A hanging rope 4 is fixedly connected to one end of the connecting pipe 3, and an alarm 2 is fixedly connected to the other end of the connecting pipe 3 to remind workers of the gas leak. A fixing pipe 6 is fixedly connected to the lower surface of the device body 1. A fixing cover 8 is fixedly connected to the lower surface of the fixing pipe 6. A telescopic component is provided on the inner wall of the fixing cover 8 for raising and lowering the probe 5. A disassembly component is provided below the fixing cover 8 for disassembling the probe 5.
[0026] The disassembly assembly includes a connecting cover 9, which is located below the fixed cover 8. A fixed shaft 10 is threadedly connected to the outer wall of the connecting cover 9. A spring 12 is fixedly connected to the inner wall of the connecting cover 9. A sliding column 13 is fixedly connected to one end of the spring 12. A push plate 14 is fixedly connected to one end of the sliding column 13. A fixed shaft 11 is slidably connected to the lower surface of the push plate 14. A slot 16 is opened on the outer wall of the fixed shaft 11. A probe 5 is fixedly connected to one end of the fixed shaft 11. A fixed ball 15 is slidably connected to the inner wall of the connecting cover 9.
[0027] Specifically, when disassembling probe 5, rotating the fixing shaft 10 causes it to stop pressing on the fixing ball 15. The inner wall of fixing shaft 10 is slidably connected to the outer wall of fixing ball 15. The outer wall of fixing ball 15 was originally slidably connected to the inner wall of the slot 16 on the outer wall of fixing shaft 11, which served to fix fixing shaft 11. Now, with fixing ball 15 no longer pressed, it no longer fixes fixing shaft 11. One end of spring 12, which is fixedly connected to the inner wall of connecting cover 9, is connected to sliding post 13, which slidably connects... Inside the connecting cover 9, the sliding column 13 pushes the pushing disk 14, and the lower surface of the pushing disk 14 is slidably connected to the fixed shaft 11. The elastic force of the spring 12 pushes the sliding column 13 and the pushing disk 14, thereby pushing the fixed shaft 11 and the probe 5 connected to it to move downward, so as to remove the probe 5. When installing the probe 5, the operation is reversed. The fixed shaft 11 corresponding to the probe 5 is inserted into the connecting cover 9, the fixed ball 15 slides into the slot 16, and the fixed shaft 10 is rotated to squeeze the fixed ball 15, so that it is firmly locked in the fixed shaft 11, and the installation is completed.
[0028] Reference Figure 1 , 3and Figure 4 The telescopic assembly includes a connecting rope 17, the outer wall of which is disposed on the inner wall of the fixed cover 8. A rotating shaft 18 is attached to the outer wall of the connecting rope 17. A gear 19 is fixedly connected to one end of the rotating shaft 18, and a crank 7 is fixedly connected to the other end of the rotating shaft 18. A connecting shaft 20 is fixedly connected to the inner wall of the fixed cover 8. A fixing rod 21 is rotatably connected to the outer wall of the connecting shaft 20. The outer wall of the fixing rod 21 is attached to the inner wall of the gear 19 and is used to limit the movement of the gear 19. The outer wall of the rotating shaft 18 is rotatably connected to... The inner wall of the fixed cover 8 has a rotating shaft 18 for driving the connecting rope 17 to move up and down. The outer wall of the gear 19 is set on the inner wall of the fixed cover 8. The gear 19 is used to limit the rotating shaft 18. The sliding column 13 is slidably connected to the inner wall of the connecting cover 9. The sliding column 13 is used to push the pushing disk 14. The outer wall of the fixed ball 15 is slidably connected to the inner wall of the slot 16. The fixed ball 15 is used to fix the inner wall of the fixed shaft 11 and the fixed shaft 10 is slidably connected to the outer wall of the fixed ball 15. The fixed shaft 10 is used to squeeze the fixed ball 15.
[0029] Specifically, when the height of probe 5 needs to be adjusted, the crank handle 7 is turned, which drives the rotating shaft 18 to rotate. Since the outer wall of the rotating shaft 18 is rotatably connected to the inner wall of the fixed cover 8, the rotating shaft 18 can rotate stably, thereby driving the connecting rope 17, which is attached to it, to rise and fall. The outer wall of the connecting rope 17 is set on the inner wall of the fixed cover 8, and the gear 19 is fixed to one end of the rotating shaft 18. The outer wall of the gear 19 is set on the inner wall of the fixed cover 8, which serves to limit the rotation of the rotating shaft 18. At the same time, the fixed rod 21, which is rotatably connected to the connecting shaft 20 fixed to the inner wall of the fixed cover 8, has its outer wall attached to the inner wall of the gear 19, which also limits the gear 19, ensuring the stability of the entire rotation process. In this way, the height of probe 5 can be adjusted in the vertical direction.
[0030] Working principle: When the chemical plant gas leak prevention device is needed, first turn on the device body 1. At this time, the display screen 22 starts working. When the probe 5 detects leaking gas, the alarm 2 starts to sound and flashes a red light. When it is necessary to remove the probe 5, rotate the fixing shaft 10. Rotating the fixing shaft 10 will stop it from pressing the fixing ball 15. At this time, the fixing ball 15 no longer fixes the fixing shaft 11. The elastic force of the spring 12 pushes the sliding column 13 and the pushing plate 14, thereby pushing the fixing shaft 11 and the probe 5 connected to it to move downwards, realizing the removal of the probe 5. When installing the probe 5, reverse the process. To operate, insert the second fixed shaft 11 corresponding to probe 5 into the connecting cover 9, slide the fixed ball 15 into the slot 16, rotate the first fixed shaft 10 to squeeze the fixed ball 15, so that it is firmly locked in the second fixed shaft 11, and the installation is completed. In addition, when it is necessary to adjust the height of probe 5, turn the crank handle 7, the crank handle 7 drives the rotating shaft 18 to rotate, the rotating shaft 18 rotates stably, and then drives the connecting rope 17 that is in contact with it to rise and fall. When probe 5 reaches the appropriate position, stop turning the crank handle 7. At this time, the fixed rod 21 is locked inside the gear 19, so that it stops rotating, ensuring the stability of the entire rotation process. In this way, the height of probe 5 can be adjusted in the vertical direction.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for preventing and controlling gas leakage in a chemical plant, comprising a device body (1), characterized in that: The device body (1) outer wall is provided with a display screen (22), the device body (1) upper surface is fixedly connected with a connecting pipe (3), one end of the connecting pipe (3) is fixedly connected with a hanging rope (4), the other end of the connecting pipe (3) is fixedly connected with an alarm (2), the lower surface of the device body (1) is fixedly connected with a fixed pipe (6), the lower surface of the fixed pipe (6) is fixedly connected with a fixed cover (8), the inner wall of the fixed cover (8) is provided with a telescopic assembly, and the lower portion of the fixed cover (8) is provided with a dismounting assembly; The dismounting assembly comprises a connecting cover (9), the connecting cover (9) is arranged below the fixed cover (8), the outer wall of the connecting cover (9) is threadedly connected with a fixed shaft one (10), the inner wall of the connecting cover (9) is fixedly connected with a spring (12), one end of the spring (12) is fixedly connected with a sliding column (13), one end of the sliding column (13) is fixedly connected with a push disc (14), the lower surface of the push disc (14) is slidably connected with a fixed shaft two (11), the outer wall of the fixed shaft two (11) is provided with a clamping groove (16), one end of the fixed shaft two (11) is fixedly connected with a probe (5), and the inner wall of the connecting cover (9) is slidably connected with a fixed ball (15).
2. The chemical plant gas leak containment device of claim 1, wherein: The telescopic assembly comprises a connecting rope (17), the outer wall of the connecting rope (17) is arranged on the inner wall of the fixed cover (8), the outer wall of the connecting rope (17) is attached with a rotating shaft (18), one end of the rotating shaft (18) is fixedly connected with a gear (19), the other end of the rotating shaft (18) is fixedly connected with a crank handle (7), the inner wall of the fixed cover (8) is fixedly connected with a connecting shaft (20), and the outer wall of the connecting shaft (20) is rotatably connected with a fixed rod (21).
3. The chemical plant gas leak containment device of claim 2, wherein: The outer wall of the fixed rod (21) is attached to the inner wall of the gear (19), and the fixed rod (21) is used for limiting the gear (19).
4. The chemical plant gas leak containment device of claim 2, wherein: The outer wall of the rotating shaft (18) is rotatably connected to the inner wall of the fixed cover (8), and the rotating shaft (18) is used for driving the connecting rope (17) to ascend and descend.
5. The chemical plant gas leak containment device of claim 2, wherein: The outer wall of the gear (19) is arranged on the inner wall of the fixed cover (8), and the gear (19) is used for limiting the rotating shaft (18).
6. The chemical plant gas leak containment device of claim 1, wherein: The sliding column (13) is slidably connected to the inner wall of the connecting cover (9), and the sliding column (13) is used for pushing the push disc (14).
7. The chemical plant gas leak containment device of claim 1, wherein: The outer wall of the fixed ball (15) is slidably connected to the inner wall of the clamping groove (16), and the fixed ball (15) is used for fixing the fixed shaft two (11).
8. The chemical plant gas leak containment device of claim 1, wherein: The inner wall of the fixed shaft one (10) is slidably connected to the outer wall of the fixed ball (15), and the fixed shaft one (10) is used for extruding the fixed ball (15).