Dangerous chemical leakage monitoring equipment

Abstract

The invention discloses dangerous chemical leakage monitoring equipment. The dangerous chemical leakage monitoring equipment comprises a mounting shell, a monitoring assembly, a lifting assembly, a cleaning assembly, a folding and unfolding assembly and a driving assembly. The mounting shell is fixed to the conveying pipe fitting, and a containing cavity, a transmission cavity and a mounting cavity are formed in the mounting shell. The monitoring assembly is installed in the containing cavity in a sliding mode and driven by the lifting assembly to ascend and descend so as to detect leakage of hazardous chemical substances in the pipe fitting. The cleaning assembly comprises a telescopic sleeve, a mounting shaft and a cleaning brush which are distributed in an annular array mode, and the cleaning assembly can stretch in the radial direction and rotate for cleaning after the monitoring assembly retracts. The retractable assembly controls the telescopic sleeve to stretch out and draw back, the driving assembly drives the cleaning brush to rotate, and automatic cleaning is achieved. Modular design is adopted, multiple sealing and intelligent power transmission are combined, the monitoring precision, the equipment reliability and the maintenance convenience are remarkably improved, and the device is suitable for pipeline safety monitoring in the chemical industry, the petroleum industry and other industries.

Description

Technical Field

[0001] The present invention relates to the technical field of hazardous chemical monitoring, in particular to a hazardous chemical leakage monitoring device. Background Art

[0002] Hazardous chemicals are widely used in industrial production, energy transportation, and other fields, and their transportation often relies on sealed pipe systems. However, due to the long-term exposure of pipes to high pressure, corrosion, or extreme temperatures, seals are susceptible to aging and damage, or valves may not close properly, significantly increasing the risk of hazardous chemical leaks. Leaked hazardous chemicals may remain in the pipeline or spread outward, not only wasting resources but also potentially causing major safety incidents such as environmental pollution, fires and explosions, and even poisoning. Therefore, real-time leak monitoring of pipes is crucial.

[0003] At present, common hazardous chemical leakage monitoring technologies mainly include fixed sensor monitoring and manual inspections. Fixed sensors are usually installed directly on the outer wall of pipes or key nodes, and judge leaks by detecting changes in the concentration of specific chemicals or environmental parameters (such as temperature and pressure). However, such sensors are exposed to complex working conditions for a long time, and the detection surface is easily contaminated by chemical residues, dust or corrosive substances, resulting in decreased sensitivity or even false alarms. In addition, most existing sensors adopt an exposed design and lack self-cleaning functions. They need to be frequently manually disassembled for cleaning or replacement, which has high maintenance costs and affects monitoring continuity. The manual inspection method has problems such as low efficiency and delayed response, and it is difficult to meet the real-time monitoring needs of high-risk areas. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a hazardous chemical leakage monitoring device, which significantly improves the reliability, stability and maintenance convenience of hazardous chemical leakage monitoring.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a hazardous chemical leakage monitoring device assembled on a conveying pipe, comprising:

[0006] An installation housing, the installation housing being fixedly mounted on the conveying pipe, the installation housing being provided with a receiving chamber, a transmission chamber, and an installation chamber, the receiving chamber being arranged at the center of the bottom of the installation housing, the transmission chamber being arranged at the periphery of the receiving chamber, and the installation chamber being arranged at the top of the installation housing;

[0007] A monitoring assembly and a lifting assembly, wherein the monitoring assembly is slidably mounted in the accommodating cavity and moves up and down along the axial direction, and the lifting assembly is assembled in the mounting cavity and maintains a power connection with the monitoring assembly;

[0008] A cleaning assembly, comprising a telescopic sleeve, a mounting shaft, and a cleaning brush. The telescopic sleeve comprises a plurality of groups arranged in an annular array. The telescopic sleeve is slidably mounted in the transmission cavity with its inner end extending into the accommodating cavity. The mounting shaft is rotatably mounted to the axis of the telescopic sleeve. The cleaning brush is fixed to the axis of the inner end of the mounting shaft and cleans the monitoring assembly.

[0009] The retractable assembly and the drive assembly are both assembled into the transmission cavity and the installation cavity. The retractable assembly maintains a power connection with the telescopic sleeve and drives the telescopic sleeve to move radially along the installation shell. The drive assembly maintains a power connection with the installation shaft and drives the installation shaft to rotate around its own axis.

[0010] On the basis of the above technical solutions, in order to facilitate the disassembly, assembly and maintenance of the various components involved in the installation shell, as well as to facilitate the production of the installation shell and ensure the stable assembly of the installation shell on the conveying pipe, the following technical solutions are provided.

[0011] An assembly interface is installed on the conveying pipe, and the installation shell includes a cover plate, an upper shell, and a lower shell assembled in sequence from top to bottom. The upper shell and the lower shell are fixedly installed at the assembly interface. The installation shell also includes an isolation sleeve and an isolation ring plate. The isolation sleeve is fixedly installed to the bottom of the lower shell, and the isolation ring plate is fixedly installed between the upper shell and the lower shell and is arranged on the periphery of the isolation sleeve. The isolation sleeve and the lower shell enclose the accommodating cavity, and the upper and lower sides of the isolation ring plate are respectively set as the installation cavity and the transmission cavity.

[0012] On the basis of the above technical solutions, in order to ensure that the monitoring component can be stably assembled in the accommodating cavity and to realize real-time monitoring of whether there is leakage of hazardous chemicals in the conveying pipe, the following technical solutions are provided.

[0013] A telescopic opening is provided at the bottom axis of the lower shell body, and the monitoring component includes a monitoring sensor and an upper assembly seat and a lower assembly seat that maintain matching docking. The upper assembly seat, the lower assembly seat and the telescopic opening are slidably plugged in, and the side wall of the lower assembly seat is provided with assembly openings distributed in a ring array. The monitoring sensor is sealed and plugged into the assembly opening, and the inner end of the monitoring sensor is fixed with a positioning ring groove. The upper assembly seat is fixed with a positioning sleeve arranged in the lower assembly seat, and the positioning sleeve is provided with a U-shaped card groove that is nested and plugged in with the positioning ring groove.

[0014] On the basis of the above technical solutions, in order to ensure that the lifting assembly can drive the monitoring assembly to rise and fall stably, and at the same time ensure that the accommodating cavity of the monitoring assembly always remains sealed with the conveying pipe when the monitoring assembly is in the extended or retracted posture, the following technical solutions are provided.

[0015] An upper pad is fixedly connected to the top outer edge of the upper assembly seat, and a lower pad is fixedly connected to the bottom outer edge of the lower assembly seat. Both the upper pad and the lower pad can maintain a sealed fit with the telescopic opening.

[0016] The lifting assembly includes an adjusting motor A, a rotating seat, and a threaded rod. The adjusting motor A is fixedly mounted to the upper surface of the isolation sleeve and maintains a power connection with the rotating seat. The threaded rod is fixed to the axis of the upper assembly seat and passes through the isolation sleeve. The rotating seat is rotatably mounted to the axis of the isolation sleeve and maintains a rotational connection with the threaded rod.

[0017] On the basis of the above technical solution, in order to ensure that the wiring of the monitoring sensor can extend to the outside of the mounting shell and is not disturbed by the lifting and lowering movement of the monitoring component, and to ensure the stable transmission of the detected data, the following technical solution is provided.

[0018] A guide sleeve arranged in the installation cavity is fixedly connected to the axis of the cover plate, and the threaded rod is slidably inserted into the guide sleeve. A wiring through hole is opened at the axis of the threaded rod, and the bottom end of the wiring through hole extends into the positioning sleeve. A connecting port that is connected to the guide sleeve is opened at the axis of the cover plate.

[0019] On the basis of the above technical solutions, in order to ensure that the telescopic sleeve can be slidably assembled in the transmission cavity, ensure that the retractable assembly can be stably assembled and realize precise control of the telescopic posture of the telescopic sleeve, the following technical solutions are provided.

[0020] The side wall of the isolation guide cylinder is provided with radial openings distributed in a ring array, the telescopic sleeve is slidably installed in the radial openings, the inner wall of the lower shell is fixed with an outer positioning ring plate, and the outer wall of the isolation sleeve is fixed with an inner positioning ring plate.

[0021] The retraction and extension assembly includes an adjusting motor B and an inner rotating sleeve and an inner rotating ring plate that are coaxially fixed. The inner rotating sleeve is rotatably installed to the outer periphery of the isolation sleeve, and the inner rotating ring plate is rotatably installed between the outer positioning ring plate and the inner positioning ring plate. The adjusting motor B is fixedly installed to the isolation ring plate and maintains a dynamic connection with the inner rotating sleeve.

[0022] A radial guide groove is provided on the bottom wall of the lower shell, an oblique guide groove is provided on the bottom wall of the inner rotating ring plate, and an upper pin and a lower pin are fixedly connected to the telescopic sleeve and are respectively nested and plugged with the oblique guide groove and the radial guide groove.

[0023] On the basis of the above technical solutions, in order to ensure that the drive assembly can be stably assembled and realize stable transmission of power to the installation shaft, while avoiding interference in power transmission caused by the telescopic movement of the cleaning assembly, the following technical solutions are provided.

[0024] The driving assembly includes an adjusting motor C, a spline shaft, a transmission shaft, and an outer rotating sleeve and an outer rotating ring plate that are coaxially fixed. The outer rotating sleeve is rotatably installed between the inner rotating sleeve and the isolation ring plate, and the outer rotating ring plate is rotatably installed between the inner rotating ring plate and the isolation ring plate. The adjusting motor C is fixedly installed on the isolation ring plate and maintains a power connection with the outer rotating sleeve.

[0025] The spline shaft is rotatably installed in the lower shell and maintains a sliding connection with the installation shaft. The transmission shaft is rotatably installed on the outer positioning ring plate. A driving spur gear is fixedly connected to the outer side wall of the outer rotating ring plate. A transmission spur gear that is meshed with the driving spur gear is fixedly connected to the transmission shaft. The spline shaft maintains a power connection with the transmission shaft.

[0026] On the basis of the above technical solutions, in order to ensure the effective cleaning of the monitoring sensor in the accommodating cavity, the following technical solutions are provided.

[0027] It also includes a liquid supply component, which includes an annular liquid storage tank, a liquid supply pump, a liquid discharge pump, a liquid supply straight pipe, and a liquid discharge straight pipe. The annular liquid storage tank is fixedly installed on the inner side of the cover plate, and the liquid supply straight pipe and the liquid discharge straight pipe are fixedly installed on the isolation sleeve and extend into the accommodating cavity. The liquid supply annular liquid storage tank is connected with the liquid supply straight pipe and the liquid discharge straight pipe through the connecting pipe A and the connecting pipe B respectively. The liquid supply pump and the liquid discharge pump are respectively assembled on the connecting pipe A and the connecting pipe B.

[0028] On the basis of the above technical solution, in order to further prevent the backflow of the cleaning liquid, facilitate the filling of the cleaning liquid, and filter the cleaning liquid that flows back into the annular liquid storage tank, the following technical solution is provided.

[0029] The connecting pipe A is equipped with an electromagnetic switch valve, the connecting pipe B is equipped with an impurity filter, the cover plate is provided with a filling port connected to the annular liquid storage tank, and the filling port is equipped with a sealing cover.

[0030] Beneficial effects of the present invention:

[0031] 1. Automated cleaning reduces manual maintenance. The monitoring component automatically retracts into the chamber after a certain period of operation, allowing the cleaning component to efficiently clean the sensor, preventing degradation of detection accuracy due to chemical residue or dust contamination. The liquid supply component automatically injects cleaning fluid into the chamber and recycles and filters it, ensuring an efficient and controllable cleaning process, reducing manual intervention and lowering maintenance costs.

[0032] 2. Modular design, easy to disassemble and maintain. The installation shell adopts a split structure and each functional component is installed independently, which is convenient for production and later maintenance. The monitoring component adopts a detachable upper assembly seat and lower assembly seat design to facilitate sensor replacement or maintenance. At the same time, the sealing rubber ring and positioning structure are used to ensure installation accuracy and sealing.

[0033] 3. Multiple sealing protections improve equipment reliability. During the raising and lowering of the monitoring component, the upper and lower pads fit tightly against the telescopic opening, and the sealing rubber ring prevents chemical leakage or the intrusion of external contaminants. A sealing rubber ring is installed between the telescopic sleeve and the radial opening to ensure that the cleaning component remains well sealed during extension and retraction, preventing leakage of cleaning fluids or chemicals.

[0034] 4. Stable power transmission. The drive assembly uses a splined shaft that slides and plugs into the mounting shaft, allowing the brush to receive stable power during radial expansion and contraction, ensuring effective cleaning. The lifting, retracting, and drive assemblies all utilize a motor and gear transmission structure, ensuring smooth operation and precise control to adapt to different working conditions.

[0035] 5. An efficient cleaning fluid circulation system prevents secondary contamination. The liquid supply assembly uses an annular reservoir to store the cleaning fluid, and the liquid supply and discharge pumps automatically refill and recycle it, improving cleaning efficiency. Connecting pipe B is equipped with an impurity filter to filter contaminants in the reflux cleaning fluid, preventing secondary contamination of the sensor.

[0036] 6. Multi-parameter monitoring improves leak detection accuracy. The monitoring component can integrate multiple sensors (such as temperature, humidity and various chemical concentration sensors), which can comprehensively monitor the status of the conveying pipes and improve the accuracy of leak judgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the structure of the present invention assembled on a conveying pipe;

[0038] Figure 2 Schematic diagram of the internal structure of the present invention;

[0039] Figure 3 for Figure 2 Schematic diagram of the structure after removing the liquid supply component;

[0040] Figure 4 It is a schematic diagram of the structure after the shell is installed;

[0041] Figure 5 A schematic diagram of the structure of the retractable component, the drive component and the mounting housing;

[0042] Figure 6 A schematic diagram of the structure of the monitoring component, cleaning component, lifting component and installation shell;

[0043] Figure 7 This is a schematic diagram of the structure of the monitoring component in the disassembled state;

[0044] Figure 8 A schematic diagram of the structure of the assembly of the retractable component, the drive component, and the cleaning component;

[0045] Figure 9 for Figure 8 Structural diagram from another perspective;

[0046] Figure 10 A detailed schematic diagram of the combination of the drive component and the cleaning component;

[0047] Figure 11 It is a structural schematic diagram of the liquid supply component;

[0048] Figure 12 It is a structural schematic diagram of connecting pipe A, connecting pipe B and the components assembled thereon.

[0049] In the figure: 1 mounting housing, 101 accommodating chamber, 102 transmission chamber, 103 mounting chamber, 11 cover plate, 111 guide sleeve, 112 connecting port, 113 filling port, 114 sealing cover, 12 upper housing, 13 lower housing, 131 telescopic port, 132 outer positioning ring plate, 133 radial guide groove, 14 isolation sleeve, 141 pressure cover, 142 radial port, 143 inner positioning ring plate, 15 isolation ring plate;

[0050] 2 monitoring assembly, 21 monitoring sensor, 211 positioning ring groove, 22 upper assembly seat, 221 positioning sleeve, 222 U-shaped slot, 223 upper pad, 23 lower assembly seat, 231 assembly port, 232 lower pad;

[0051] 3 lifting assembly, 31 adjusting motor A, 311 driving bevel gear A, 32 rotating seat, 321 driving bevel gear A, 33 threaded rod, 331 wiring through hole;

[0052] 4 cleaning assembly, 41 telescopic sleeve, 411 upper pin shaft, 412 lower pin shaft, 42 mounting shaft, 421 spline groove, 43 cleaning brush;

[0053] 5 retractable assembly, 51 adjusting motor B, 511 driving bevel gear B, 52 inner rotating sleeve, 521 transmission bevel gear B, 53 inner rotating ring plate, 531 oblique guide groove;

[0054] 6 driving assembly, 61 adjusting motor C, 611 driving bevel gear C, 62 spline shaft, 621 driving bevel gear D, 63 driving shaft, 631 driving spur gear, 632 driving bevel gear D, 64 external rotating sleeve, 641 driving bevel gear C, 65 external rotating ring plate, 651 driving spur gear;

[0055] 7 liquid supply assembly, 71 annular liquid storage tank, 711 connecting pipe A, 712 connecting pipe B, 713 electromagnetic switch valve, 714 impurity filter, 72 liquid supply pump, 73 liquid discharge pump, 74 liquid supply straight pipe, 75 liquid discharge straight pipe, 8 delivery pipe fittings, 81 assembly interface. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0057] Example 1

[0058] See also Figures 1-4 , a hazardous chemical leakage monitoring device, assembled on a conveying pipe 8, comprising:

[0059] The mounting housing 1 is fixedly mounted on the conveying pipe 8. The mounting housing 1 is provided with a receiving chamber 101, a transmission chamber 102, and a mounting chamber 103. The receiving chamber 101 is arranged at the bottom center of the mounting housing 1, the transmission chamber 102 is arranged at the periphery of the receiving chamber 101, and the mounting chamber 103 is arranged at the top of the mounting housing 1;

[0060] The monitoring component 2 and the lifting component 3 are slidably installed in the accommodating cavity 101 and move up and down along the axial direction. The lifting component 3 is assembled into the installation cavity 103 and maintains a power connection with the monitoring component 2;

[0061] Cleaning assembly 4, cleaning assembly 4 includes a telescopic sleeve 41, a mounting shaft 42, and a cleaning brush 43. The telescopic sleeve 41 includes multiple groups distributed in a circular array. The telescopic sleeve is slidably installed in the transmission cavity 102 and the inner end extends into the accommodating cavity 101. The mounting shaft 42 is rotatably installed to the axis of the telescopic sleeve 41. The cleaning brush 43 is fixed to the axis of the inner end of the mounting shaft 42 and cleans the monitoring assembly 2.

[0062] The retractable assembly 5 and the drive assembly 6 are both assembled into the transmission cavity 102 and the installation cavity 103. The retractable assembly 5 maintains a power connection with the telescopic sleeve 41 and drives the telescopic sleeve 41 to move radially along the installation shell 1. The drive assembly 6 maintains a power connection with the installation shaft 42 and drives the installation shaft 42 to rotate around its own axis.

[0063] The conveying pipe 8 is usually used for the transmission of hazardous chemicals. When it is in the cut-off state, there are no hazardous chemicals in the conveying pipe 8. However, when the sealing components are aged or damaged, or the stop valve is not closed tightly, the hazardous chemicals will leak and remain or flow along the conveying pipe 8. The monitoring equipment is used to monitor in real time whether there is any leakage of hazardous chemicals in the conveying pipe 8.

[0064] The lifting assembly 3 can drive the monitoring assembly 2 to move up and down along the axis of the mounting shell 1. When the monitoring assembly 2 extends out of the mounting shell 1 and is in the conveying pipe 8, it can detect the concentration of various chemicals contained in the hazardous chemicals to determine whether leakage of hazardous chemicals occurs.

[0065] After the monitoring component 2 has been running for a certain period of time, it needs to be cleaned to ensure the accuracy of subsequent data detection. At this time, the lifting component 3 can be controlled to operate and drive the monitoring component 2 to move upward and retract into the accommodating chamber 101. Then, the retracting component 5 drives the cleaning component 4 to move radially along the installation shell 1, and the telescopic sleeve 41 extends into the accommodating chamber 101, so that the cleaning brush 43 provided on the installation shaft 42 fits with the detection component provided on the monitoring component 2. Then, the driving component 6 drives the installation shaft 42 and the cleaning brush 43 to operate to achieve efficient cleaning of the detection component, thereby realizing automatic cleaning of the monitoring component 2, reducing the frequency of manual intervention and maintenance, improving the stability of equipment operation and reducing maintenance costs.

[0066] In order to facilitate the disassembly, assembly and maintenance of the various components involved in the installation shell 1, facilitate the production of the installation shell 1, and ensure the stable assembly of the installation shell 1 on the conveying pipe 8, the following technical solution is provided.

[0067] An assembly interface 81 is installed on the conveying pipe 8, and the installation shell 1 includes a cover plate 11, an upper shell 12, and a lower shell 13 which are assembled in sequence from top to bottom. The upper shell 12 and the lower shell 13 are fixedly installed at the assembly interface 81. The installation shell 1 also includes an isolation sleeve 14 and an isolation ring plate 15. The isolation sleeve 14 is fixedly installed to the bottom of the lower shell 13, and the isolation ring plate 15 is fixedly installed between the upper shell 12 and the lower shell 13 and is arranged on the periphery of the isolation sleeve 14. The isolation sleeve 14 and the lower shell 13 enclose a accommodating cavity 101, and the upper and lower sides of the isolation ring plate 15 are respectively set as an installation cavity 103 and a transmission cavity 102.

[0068] The assembly interface 81 provided on the conveying pipe 8 enables the installation shell 1 to be stably assembled thereon, and the installation shell 1 adopts a split assembly design. The independently manufactured cover plate 11, upper shell 12, lower shell 13, isolation sleeve 14, and isolation ring plate 15 all have the advantage of convenient production and manufacturing. At the same time, it can ensure that the various components involved are stably assembled in the various structures of the installation shell 1, thereby improving the convenience of disassembly, assembly, and maintenance.

[0069] Example 2

[0070] See also Figure 2 、 Figure 3 、 Figure 6 、 Figure 7In order to ensure that the monitoring component 2 can be stably assembled in the accommodating cavity 101 and to realize real-time monitoring of whether there is leakage of hazardous chemicals in the conveying pipe 8, the following technical solution is provided.

[0071] A telescopic opening 131 is provided at the bottom axis of the lower shell 13. The monitoring component 2 includes a monitoring sensor 21 and an upper assembly seat 22 and a lower assembly seat 23 that maintain matching docking. The upper assembly seat 22 and the lower assembly seat 23 are slidably plugged into the telescopic opening 131. Assembly openings 231 distributed in a ring array are provided on the side wall of the lower assembly seat 23. The monitoring sensor 21 is sealed and plugged into the assembly opening 231. A positioning ring groove 211 is fixedly connected to the inner end of the monitoring sensor 21. A positioning sleeve 221 arranged in the lower assembly seat 23 is fixedly connected to the upper assembly seat 22. The positioning sleeve 221 is provided with a U-shaped card groove 222 that is nested and plugged with the positioning ring groove 211.

[0072] The monitoring sensors 21 include multiple groups and are used to detect the concentration data of various chemicals as well as the ambient temperature and humidity. Specifically, they may include temperature sensors, humidity sensors, and concentration sensors of various chemical components. The inner wall of the assembly port 231 is designed to be stepped so that the monitoring sensor 21 can be accurately positioned after being inserted into the assembly port 231 from the outside, and a sealing rubber ring is installed at the step where the monitoring sensor 21 fits with the assembly port 231 to achieve a sealed installation.

[0073] After the monitoring sensor 21 is installed, the upper assembly seat 22 is inserted into the lower assembly seat 23, and the U-shaped card groove 222 and the positioning ring groove 211 are nested and connected, thereby achieving precise positioning of the monitoring sensor 21. Finally, the upper assembly seat 22 and the lower assembly seat 23 are fixed together by bolts.

[0074] In order to ensure that the lifting assembly 3 can drive the monitoring assembly 2 to rise and fall stably, and at the same time ensure that the accommodating cavity 101 of the monitoring assembly 2 is always sealed with the conveying pipe 8 when the monitoring assembly 2 is in the extended or retracted posture, the following technical solution is provided.

[0075] An upper pad 223 is fixed to the top outer edge of the upper assembly seat 22 , and a lower pad 232 is fixed to the bottom outer edge of the lower assembly seat 23 . Both the upper pad 223 and the lower pad 232 can maintain a sealed fit with the telescopic opening 131 .

[0076] Sealing rubber rings are provided on the inner sides of the upper pad 223 and the lower pad 232 . When the upper pad 223 or the lower pad 232 moves to the position of the telescopic opening 131 , the corresponding sealing rubber rings can effectively seal the gap of the telescopic opening 131 .

[0077] The lifting assembly 3 includes an adjusting motor A31, a rotating seat 32, and a threaded rod 33. The adjusting motor A31 is fixedly installed to the upper surface of the isolation sleeve 14 and maintains a power connection with the rotating seat 32. The threaded rod 33 is fixed to the axis of the upper assembly seat 22 and is arranged through the isolation sleeve 14. The rotating seat 32 is rotatably installed to the axis of the isolation sleeve 14 and maintains a screw connection with the threaded rod 33.

[0078] A pressure cover 141 is also fixedly installed on the top of the isolation sleeve 14, which effectively positions the rotating seat 32 and enables it to operate stably. A driving bevel gear A311 is fixedly connected to the output shaft of the adjusting motor A31, and a transmission bevel gear A321 that is meshed with the driving bevel gear A311 is fixedly connected to the rotating seat 32. When the adjusting motor A31 drives the transmission bevel gear A321 to operate, it can drive the threaded rod 33 and the monitoring component 2 connected to the threaded rod 33 to rise and fall stably in the vertical direction, thereby realizing the adjustment of the extension and retraction posture of the monitoring component 2.

[0079] In order to ensure that the wiring of the monitoring sensor 21 can extend to the outside of the mounting housing 1 and is not disturbed by the lifting movement of the monitoring component 2, and to ensure stable transmission of the detected data, the following technical solution is provided.

[0080] A guide sleeve 111 arranged in the installation cavity 103 is fixedly connected to the axis of the cover plate 11, and the threaded rod 33 is slidably inserted into the guide sleeve 111. A wiring through hole 331 is opened at the axis of the threaded rod 33, and the bottom end of the wiring through hole 331 extends into the positioning sleeve 221. A connecting port 112 that is connected to the guide sleeve 111 is opened at the axis of the cover plate 11.

[0081] An axially arranged guide groove can be opened on the outer wall of the threaded rod 33, and an axially arranged guide rail is fixed to the inner wall of the guide sleeve 111, and the guide rail and the guide groove are kept in sliding connection, which can realize the matching docking of the guide sleeve 111 and the threaded rod 33 without affecting the matching rotation connection between the thread groove on the outer wall of the threaded rod 33 and the rotating seat 32.

[0082] Therefore, the wiring at the inner end of each monitoring sensor 21 can be extended along the wiring through hole 331, the guide sleeve 111, and the connecting port 112 to the outside of the mounting shell 1 to achieve effective transmission of hazardous chemical concentration data.

[0083] Example 3

[0084] See also Figure 2-Figure 6 、 Figures 8-10 In order to ensure that the telescopic sleeve 41 can be slidably assembled in the transmission cavity 102, ensure that the retractable component 5 can be stably assembled and realize precise control of the telescopic posture of the telescopic sleeve 41, the following technical solutions are provided.

[0085] The side wall of the isolation guide cylinder is provided with radial openings 142 distributed in a ring array, and the telescopic sleeve 41 is slidably installed in the radial openings 142. The inner wall of the lower shell 13 is fixed with an outer positioning ring plate 132, and the outer wall of the isolation sleeve 14 is fixed with an inner positioning ring plate 143.

[0086] The retracting and extending assembly 5 includes an adjusting motor B51 and an inner rotating sleeve 52 and an inner rotating ring plate 53 that are coaxially fixed. The inner rotating sleeve 52 is rotatably installed to the outer periphery of the isolation sleeve 14, and the inner rotating ring plate 53 is rotatably installed between the outer positioning ring plate 132 and the inner positioning ring plate 143. The adjusting motor B51 is fixedly installed on the isolation ring plate 15 and maintains a dynamic connection with the inner rotating sleeve 52.

[0087] A radial guide groove 133 is defined on the bottom wall of the lower shell 13 , an oblique guide groove 531 is defined on the bottom wall of the inner rotating ring plate 53 , and an upper pin 411 and a lower pin 412 are fixedly connected to the telescopic sleeve 41 and are respectively nested and plugged in the oblique guide groove 531 and the radial guide groove 133 .

[0088] A sealing rubber ring is embedded in the inner wall of the radial opening 142, which can ensure the sealing effect during the relative sliding of the telescopic sleeve 41 and the radial through hole. The setting of the radial opening 142, the radial guide groove 133 and the lower pin shaft 412 can ensure that the telescopic sleeve 41 slides stably in the radial direction, thereby realizing its retraction and extension adjustment in the accommodating cavity 101.

[0089] A driving bevel gear B511 is fixed to the output shaft of the adjusting motor B51, and a transmission bevel gear B521 that is meshed with the driving bevel gear B511 is fixed to the outer wall of the top end of the inner rotating sleeve 52. When the adjusting motor B51 drives the inner rotating sleeve 52 and the inner rotating ring plate 53 to operate, the inclined guide groove 531 provided thereon can cooperate with the upper pin shaft 411, and then under the limiting action of the radial guide groove 133, the radial telescopic adjustment of each group of telescopic sleeves 41 can be realized.

[0090] In order to ensure that the drive assembly 6 can be stably assembled and that the power can be stably transmitted to the mounting shaft 42 while avoiding interference in the power transmission caused by the telescopic movement of the cleaning assembly 4, the following technical solution is provided.

[0091] The driving assembly 6 includes an adjusting motor C61, a spline shaft 62, a transmission shaft 63, and an outer rotating sleeve 64 and an outer rotating ring plate 65 that are coaxially fixed. The outer rotating sleeve 64 is rotatably installed between the inner rotating sleeve 52 and the isolation ring plate 15, and the outer rotating ring plate 65 is rotatably installed between the inner rotating ring plate 53 and the isolation ring plate 15. The adjusting motor C61 is fixedly installed on the isolation ring plate 15 and maintains a power connection with the outer rotating sleeve 64.

[0092] The spline shaft 62 is rotatably installed in the lower shell 13 and maintains a sliding connection with the installation shaft 42. The transmission shaft 63 is rotatably installed on the outer positioning ring plate 132. A driving spur gear 651 is fixedly connected to the outer side wall of the outer rotating ring plate 65. A transmission spur gear 631 is fixedly connected to the transmission shaft 63 and maintains meshing with the driving spur gear 651. The spline shaft 62 and the transmission shaft 63 maintain a power connection.

[0093] The common arrangement of the isolation ring plate 15, the outer positioning ring plate 132, the isolation sleeve 14 and the inner positioning ring plate 143 enables the inner rotating sleeve 52, the inner rotating ring plate 53, the outer rotating sleeve 64 and the outer rotating ring plate 65 to be stably installed and operated in a relative rotating manner.

[0094] A driving bevel gear C611 is fixed to the output shaft of the adjusting motor C61, and a transmission bevel gear C641 that is meshed with the driving bevel gear C611 is fixed to the outer wall of the top end of the outer rotating sleeve 64. A driving bevel gear D632 is fixed to the bottom end of the transmission shaft 63, and a transmission bevel gear D621 that is meshed with the driving bevel gear D632 is fixed to the end of the spline shaft 62. A spline groove 421 that is nested and plugged with the spline shaft 62 is provided at the axis center of the mounting shaft 42.

[0095] When the adjustment motor C61 is running, it can drive the outer rotating sleeve 64, the outer rotating ring plate 65, the transmission shaft 63, and the spline shaft 62 to operate stably, and then drive the installation shaft 42 and the cleaning brush 43 to operate stably, and with the help of the cleaning brush 43, the detection surface of the monitoring sensor 21 can be effectively cleaned.

[0096] Since the installation shaft 42 and the spline shaft 62 maintain sliding connection, when the telescopic sleeve 41 drives the installation shaft 42 to move radially, the power of the adjustment motor C61 can always be transmitted to the installation shaft 42 through the spline shaft 62.

[0097] Example 4

[0098] See also Figure 2 、 Figure 11 、 Figure 12 In order to ensure that the monitoring sensor 21 in the accommodating cavity 101 is effectively cleaned, the following technical solution is provided.

[0099] It also includes a liquid supply component 7, which includes an annular liquid storage tank 71, a liquid supply pump 72, a liquid discharge pump 73, a liquid supply straight pipe 74, and a liquid discharge straight pipe 75. The annular liquid storage tank 71 is fixedly installed on the inner side of the cover plate 11, and the liquid supply straight pipe 74 and the liquid discharge straight pipe 75 are fixedly installed on the isolation sleeve 14 and extend into the accommodating cavity 101. The liquid supply annular liquid storage tank 71 is connected with the liquid supply straight pipe 74 and the liquid discharge straight pipe 75 through the connecting pipe A711 and the connecting pipe B712 respectively. The liquid supply pump 72 and the liquid discharge pump 73 are respectively assembled on the connecting pipe A711 and the connecting pipe B712.

[0100] The annular liquid reservoir 71 is filled with cleaning fluid for cleaning the monitoring sensor 21. A liquid supply pipe 74 and a liquid drain pipe 75 are arranged around the periphery of the upper plate 223 to prevent spatial motion interference between the liquid supply pipe 74 and the liquid drain pipe 75 during the lifting and lowering of the monitoring assembly 2. At least the bottom end of the liquid drain pipe 75 extends to the bottom wall of the accommodating chamber 101 to ensure that all cleaning fluid in the accommodating chamber 101 is drained.

[0101] Both the liquid supply pump 72 and the liquid discharge pump 73 are fixedly mounted to the top of the isolation sleeve 14. When the monitoring sensor 21 in the accommodating chamber 101 is cleaned by means of the cleaning assembly 4, the liquid supply pump 72 can be turned on to inject the cleaning liquid in the annular liquid storage tank 71 into the accommodating chamber 101 through the connecting pipe A 711 and the liquid supply straight pipe 74, thereby cooperating with the running cleaning assembly 4 to efficiently clean the monitoring sensor 21. After the cleaning work is completed, the liquid discharge pump 73 can be controlled to return the cleaning liquid in the accommodating chamber 101 to the annular liquid storage tank 71 through the liquid discharge straight pipe 75 and the connecting pipe B 712 for storage.

[0102] It should also be noted that the connecting pipe A711 is connected to the bottom of the annular liquid storage tank 71, which can fill all the tilting liquid in the annular liquid storage tank 71 into the accommodating chamber 101, while the connecting pipe B712 is connected to the top of the annular liquid storage tank 71 to prevent the cleaning liquid in the annular liquid storage tank 71 from flowing back into the accommodating chamber 101 through the connecting pipe B712.

[0103] In addition, one-way valves arranged in opposite directions may be installed on the connecting pipes A711 and B712 to control the one-way flow of the cleaning fluid and avoid backflow that may cause leakage of the cleaning fluid or contamination of chemicals.

[0104] In order to further prevent the backflow of the cleaning liquid, facilitate the addition of the cleaning liquid, and filter the cleaning liquid that flows back into the annular liquid storage tank 71, the following technical solution is provided.

[0105] The connecting pipe A711 is equipped with an electromagnetic switch valve 713, the connecting pipe B712 is equipped with an impurity filter 714, and the cover plate 11 is provided with a filling port 113 connected to the annular liquid storage tank 71, and the filling port 113 is equipped with a sealing cover 114.

[0106] The electromagnetic on-off valve 713 prevents leakage of cleaning fluid from the annular liquid reservoir 71, while the impurity filter 714 effectively filters the tilted fluid flowing back into the annular liquid reservoir 71, intercepting impurities being cleaned. The filling port 113 allows the annular liquid reservoir 71 to be filled with cleaning fluid.

[0107] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0108] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hazardous chemical leakage monitoring device, characterized in that: Assembled to the conveying pipe (8), comprising: An installation shell (1), the installation shell (1) being fixedly installed on the conveying pipe (8), the installation shell (1) being provided with a receiving chamber (101), a transmission chamber (102), and an installation chamber (103), the receiving chamber (101) being arranged at the center of the bottom of the installation shell (1), the transmission chamber (102) being arranged at the periphery of the receiving chamber (101), and the installation chamber (103) being arranged at the top of the installation shell (1); A monitoring component (2) and a lifting component (3), wherein the monitoring component (2) is slidably installed in the accommodating cavity (101) and moves up and down along the axial direction, and the lifting component (3) is assembled in the installation cavity (103) and maintains a dynamic connection with the monitoring component (2); A cleaning assembly (4), the cleaning assembly (4) comprising a telescopic sleeve (41), a mounting shaft (42), and a cleaning brush (43), the telescopic sleeve (41) comprising a plurality of groups distributed in a circular array, the telescopic sleeve being slidably mounted in the transmission cavity (102) and having its inner end extending into the accommodating cavity (101), the mounting shaft (42) being rotatably mounted to the axis of the telescopic sleeve (41), the cleaning brush (43) being fixed to the axis of the inner end of the mounting shaft (42) and cleaning the monitoring assembly (2); The retractable assembly (5) and the drive assembly (6) are both assembled into the transmission cavity (102) and the installation cavity (103). The retractable assembly (5) maintains a power connection with the telescopic sleeve (41) and drives the telescopic sleeve (41) to move along the radial direction of the installation shell (1). The drive assembly (6) maintains a power connection with the installation shaft (42) and drives the installation shaft (42) to rotate around its own axis.

2. The hazardous chemical leakage monitoring device according to claim 1, characterized in that: An assembly interface (81) is installed on the conveying pipe (8), and the installation shell (1) includes a cover plate (11), an upper shell (12), and a lower shell (13) which are sequentially assembled from top to bottom. The upper shell (12) and the lower shell (13) are fixedly installed at the assembly interface (81). The installation shell (1) also includes an isolation sleeve (14) and an isolation ring plate (15). The isolation sleeve (14) is fixedly installed to the bottom of the lower shell (13). The isolation ring plate (15) is fixedly installed between the upper shell (12) and the lower shell (13) and is arranged on the periphery of the isolation sleeve (14). The isolation sleeve (14) and the lower shell (13) enclose the accommodating cavity (101), and the upper and lower sides of the isolation ring plate (15) are respectively set as the installation cavity (103) and the transmission cavity (102).

3. The hazardous chemical leakage monitoring device according to claim 2, characterized in that: A telescopic opening (131) is provided at the axis center of the bottom of the lower shell (13); the monitoring component (2) comprises a monitoring sensor (21) and an upper assembly seat (22) and a lower assembly seat (23) that are matched and docked; the upper assembly seat (22) and the lower assembly seat (23) are slidably plugged into the telescopic opening (131); the side wall of the lower assembly seat (23) is provided with assembly openings (231) distributed in a ring array; the monitoring sensor (21) is sealed and plugged into the assembly openings (231); the inner end of the monitoring sensor (21) is fixedly connected to a positioning ring groove (211); the upper assembly seat (22) is fixedly connected to a positioning sleeve (221) arranged in the lower assembly seat (23); the positioning sleeve (221) is provided with a U-shaped card groove (222) that is nested and plugged with the positioning ring groove (211).

4. The hazardous chemical leakage monitoring device according to claim 3, characterized in that: An upper pad (223) is fixedly connected to the top outer edge of the upper assembly seat (22), and a lower pad (232) is fixedly connected to the bottom outer edge of the lower assembly seat (23). Both the upper pad (223) and the lower pad (232) can maintain a sealed fit with the telescopic opening (131); The lifting assembly (3) comprises an adjusting motor A (31), a rotating seat (32), and a threaded rod (33); the adjusting motor A (31) is fixedly mounted on the upper surface of the isolation sleeve (14) and maintains a power connection with the rotating seat (32); the threaded rod (33) is fixedly connected to the axis of the upper assembly seat (22) and passes through the isolation sleeve (14); the rotating seat (32) is rotatably mounted on the axis of the isolation sleeve (14) and maintains a rotational connection with the threaded rod (33).

5. The hazardous chemical leakage monitoring device according to claim 4, characterized in that: A guide sleeve (111) arranged in the installation cavity (103) is fixedly connected to the axis of the cover plate (11), the threaded rod (33) is slidably inserted into the guide sleeve (111), a wiring through hole (331) is opened at the axis of the threaded rod (33), the bottom end of the wiring through hole (331) extends into the positioning sleeve (221), and a connecting port (112) that is connected to the guide sleeve (111) is opened at the axis of the cover plate (11).

6. The hazardous chemical leakage monitoring device according to claim 2, characterized in that: The side wall of the isolation guide cylinder is provided with radial openings (142) distributed in an annular array, the telescopic sleeve (41) is slidably installed in the radial openings (142), the inner wall of the lower shell (13) is fixedly connected with an outer positioning ring plate (132), and the outer wall of the isolation sleeve (14) is fixedly connected with an inner positioning ring plate (143); The retractable assembly (5) comprises an adjusting motor B (51) and an inner rotating sleeve (52) and an inner rotating ring plate (53) which are coaxially fixed. The inner rotating sleeve (52) is rotatably mounted to the periphery of the isolation sleeve (14). The inner rotating ring plate (53) is rotatably mounted between the outer positioning ring plate (132) and the inner positioning ring plate (143). The adjusting motor B (51) is fixedly mounted on the isolation ring plate (15) and is in dynamic connection with the inner rotating sleeve (52). A radial guide groove (133) is provided on the bottom wall of the lower shell (13), an oblique guide groove (531) is provided on the bottom wall of the inner rotating ring plate (53), and an upper pin shaft (411) and a lower pin shaft (412) are fixedly connected to the telescopic sleeve (41) and are respectively nested and plugged with the oblique guide groove (531) and the radial guide groove (133).

7. The hazardous chemical leakage monitoring device according to claim 6, characterized in that: The driving assembly (6) comprises an adjusting motor C (61), a spline shaft (62), a transmission shaft (63), an outer rotating sleeve (64) and an outer rotating ring plate (65) which are coaxially fixed, the outer rotating sleeve (64) being rotatably mounted between the inner rotating sleeve (52) and the isolation ring plate (15), the outer rotating ring plate (65) being rotatably mounted between the inner rotating ring plate (53) and the isolation ring plate (15), the adjusting motor C (61) being fixedly mounted on the isolation ring plate (15) and maintaining power connection with the outer rotating sleeve (64); The spline shaft (62) is rotatably mounted in the lower housing (13) and is kept in sliding connection with the mounting shaft (42); the transmission shaft (63) is rotatably mounted on the outer positioning ring plate (132); a driving spur gear (651) is fixedly connected to the outer side wall of the outer rotating ring plate (65); a transmission spur gear (631) is fixedly connected to the transmission shaft (63) and is kept in meshing contact with the driving spur gear (651); the spline shaft (62) and the transmission shaft (63) are kept in power connection.

8. The hazardous chemical leakage monitoring device according to claim 2, characterized in that: The invention also includes a liquid supply assembly (7), wherein the liquid supply assembly (7) includes an annular liquid storage tank (71), a liquid supply pump (72), a liquid discharge pump (73), a liquid supply straight pipe (74), and a liquid discharge straight pipe (75). The annular liquid storage tank (71) is fixedly mounted on the inner side of the cover plate (11), and the liquid supply straight pipe (74) and the liquid discharge straight pipe (75) are both fixedly mounted on the isolation sleeve (14) and extend into the accommodating cavity (101). The liquid supply annular liquid storage tank (71) is connected to the liquid supply straight pipe (74) and the liquid discharge straight pipe (75) through a connecting pipe A (711) and a connecting pipe B (712), respectively. The liquid supply pump (72) and the liquid discharge pump (73) are respectively assembled on the connecting pipe A (711) and the connecting pipe B (712).

9. The hazardous chemical leakage monitoring device according to claim 9, characterized in that: The connecting pipe A (711) is equipped with an electromagnetic switch valve (713), the connecting pipe B (712) is equipped with an impurity filter (714), and the cover plate (11) is provided with a filling port (113) that is in communication with the annular liquid storage tank (71), and the filling port (113) is equipped with a sealing cover (114).

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