A heat leak detecting device

By designing clamping and detection components, automatic alignment and rapid assembly/disassembly of thermal pipelines are achieved, solving the problems of poor pipeline compatibility and low detection accuracy in existing technologies, and improving detection efficiency and the versatility of the device.

CN122217545APending Publication Date: 2026-06-16CONSTR INVESTMENT HEBEI THERMAL POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CONSTR INVESTMENT HEBEI THERMAL POWER CO LTD
Filing Date
2026-04-21
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing leak detection equipment for heating pipelines suffers from poor pipeline compatibility, low detection accuracy, and cumbersome disassembly and assembly, making it difficult to replace and maintain quickly.

Method used

Employing a clamping assembly and a detection assembly, the centering plate and clamp are driven to move synchronously through the first positive and negative toothed rods to achieve automatic centering and uniform clamping. Combined with the spacing adjustment assembly and connector design, the detection assembly can be quickly installed and disassembled, adapting to pipes of different specifications.

Benefits of technology

It achieves high-precision pipeline inspection, can quickly adapt to thermal pipelines of different diameters and specifications, simplifies the replacement and maintenance process of detectors, and improves the versatility of the device and the efficiency of on-site operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of heat power, in particular to a heat power leak detection device, which comprises a clamping assembly and a detection assembly, and through the first positive and negative tooth rod, the two sides of the centering plate and the clamping are synchronously moved towards each other, automatic centering and uniform clamping are realized, there is no deviation and loosening, it can be adapted to heat pipes with different diameters and different specifications, and the detection accuracy is higher; through the first handle, the shaft and the double bevel gear, two groups of first positive and negative tooth rods are synchronously driven, and clamping operation can be completed by one hand, adjustment is simple, response is fast, and on-site rapid detection is convenient; through the second positive and negative tooth rod, two groups of centering assemblies are driven to move towards each other / backwards, the distance between the two groups of centering assemblies can be freely adjusted, and then the mounting plate with the corresponding detector is adapted, at the same time, the mounting plate is combined with the guide rail, the moving block, the insert block and the elastic element, quick plugging and unplug, one-key disassembly and assembly between the detection assembly and the clamping are realized, tools are not needed, and the detector can be quickly replaced and maintained on site.
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Description

Technical Field

[0001] This invention relates to the field of thermal technology, specifically to a leak detection device for thermal applications. Background Technology

[0002] During long-term operation, heating pipelines are prone to leakage due to changes in medium pressure and temperature, corrosion, and external forces. Timely and accurate leak detection of pipelines is the key to ensuring the safe and stable operation of the heating system and reducing energy consumption. Currently, traditional equipment and methods for detecting leaks in thermal pipelines generally suffer from the following technical defects: First, they have poor pipeline adaptability and cannot adaptively align and clamp thermal pipelines of different diameters and specifications. They are prone to displacement and loosening during testing, affecting the accuracy of the test. Second, the installation and disassembly of the detection components are cumbersome. The disassembly and assembly between the detector and the clamping mechanism are complicated, making it difficult to quickly replace and maintain them, which is inconvenient for on-site maintenance operations. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a leak detection device for thermal applications.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a thermal leak detection device, comprising a clamping assembly and a detection assembly, wherein the centering assembly comprises a base plate, a first sliding frame, a first positive and negative toothed rod, a driver, a centering plate and a clamping clamp, wherein the first sliding frame is symmetrically arranged on the front and rear sides above the base plate, and a first sliding groove is provided on the adjacent sides of the two first sliding frames, wherein the first positive and negative toothed rod is rotatably arranged in the first sliding groove, and two symmetrically arranged centering plates are also provided above the base plate, wherein the front and rear sides of the centering plates extend into the corresponding first sliding grooves and are threadedly connected to the first positive and negative toothed rods, and a clamping clamp is provided on the adjacent sides of the two centering plates, and a driver for driving the two first positive and negative toothed rods to rotate is also provided below the base plate; The driver includes a cover, a first handle, a rotating shaft, a first bevel gear, and a second bevel gear. The cover is disposed below the base plate, and the rotating shaft is rotatably disposed inside the cover. Two first bevel gears are disposed on the rotating shaft. The first positive and negative toothed rod passes through the first slide frame, the base plate, and the cover and is connected to the second bevel gear. The second bevel gear meshes with the first bevel gear. The rotating shaft passes through the cover and is connected to the first handle. The centering component is arranged in two symmetrical configurations. A detection component is also assembled between the corresponding clamps on the left and right sides. The detection component includes a mounting plate, a connector, and a detector. The detector is provided on the mounting plate, and connectors that connect to the corresponding clamps are provided on the left and right sides of the mounting plate.

[0005] To facilitate adjustment of the spacing between the two centering components, the present invention includes an improved device that further comprises a spacing adjustment component for driving the two centering components to move toward each other. The spacing adjustment component includes a second sliding frame, a slider, a second positive and negative toothed rod, and a second handle. A second sliding groove is provided above the second sliding frame, and the second positive and negative toothed rod is rotatably disposed in the second sliding groove. Two symmetrically arranged sliders are also provided on the second sliding groove. The sliders are threadedly connected to the second positive and negative toothed rods. The second positive and negative toothed rods pass through the second sliding frame and are connected to the second handle. The corresponding cover is disposed on the corresponding second handle.

[0006] To facilitate the replacement of clamps of corresponding specifications, the present invention is improved in that the clamp includes clamping plates, mounting brackets, bolts, friction pads, and guide frames. Friction pads are provided on the adjacent sides of the two clamping plates arranged vertically. Mounting brackets connected to the corresponding centering plates are provided on the opposite sides of the two clamping plates. The mounting brackets are T-shaped and are also provided with bolts connected to the centering plates. Several sets of guide frames are also provided on the opposite sides of the two clamping plates.

[0007] To facilitate stable assembly and disassembly of the mounting plate and clamp, the present invention is improved in that the connecting component includes a guide rail, a moving block, an insert block, an elastic element, and a positioning element. The mounting frame is symmetrically provided with guide rails on its left and right sides. The guide frame is provided with a mounting groove adapted to the guide rail. The moving block is also slidably provided on the guide rail. The mounting plate is also symmetrically provided with elastic elements connected to the moving block on its left and right sides. The end of the moving block away from the elastic element is provided with an insert block that inserts into the guide frame. The end of the moving block near the elastic element is also provided with a positioning element adapted to the guide rail.

[0008] Preferably, the elastic element includes a spring and a telescopic rod, the spring is sleeved on the telescopic rod, and both ends of the spring and the telescopic rod are respectively connected to the mounting plate and the moving block.

[0009] Preferably, the positioning component includes a third handle, a stud, and a friction block. The stud passes through the movable block and is connected to the friction block. A third handle is also provided above the stud.

[0010] To ensure the connection strength between the clamping plate and the guide frame, the present invention is improved by providing a reinforcing rib on the clamping plate that is connected to the guide frame.

[0011] Preferably, the first sliding frame is further provided with a first elastic dust cover, which is disposed on the periphery of the centering plate.

[0012] Preferably, the second slide frame is further provided with a second elastic dust cover, which is disposed around the slider.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a leak detection device for thermal applications, which has the following advantages: This thermal leak detection device drives the centering plates and clamps on both sides to move synchronously in opposite directions through the first positive and negative toothed rod, so as to achieve automatic centering and uniform clamping without deviation or loosening. It can be adapted to thermal pipes of different diameters and specifications, and has higher detection accuracy. The device uses a first handle, a rotating shaft, and double bevel gears to synchronously drive two sets of first positive and negative toothed rods, allowing for clamping operations to be completed with one hand. It is easy to adjust, has a fast response, and is convenient for rapid on-site testing. The two sets of centering components are driven to move towards or away from each other by the second positive and negative tooth rods. The distance between the two sets of centering components can be freely adjusted, thereby adapting to the mounting plate with the corresponding detector. At the same time, the mounting plate, through the combination of guide rails, moving blocks, insert blocks and elastic elements, realizes quick plugging and unplugging and one-click disassembly between the detection components and the clamp, without tools, which is convenient for quick replacement and maintenance of detectors on site. The clamp is detachably connected to the mounting bracket via bolts, allowing for quick replacement of the corresponding clamp model according to pipe specifications, further enhancing the versatility of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a partial schematic diagram of the structure of the present invention; Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a partial explosion diagram of the structure of the present invention; Figure 5 for Figure 4 Enlarged view of a portion of point B in the middle; Figure 6 This is a second partial schematic diagram of the structure of the present invention.

[0015] In the diagram: 1. Base plate; 2. First sliding frame; 3. First positive and negative toothed rod; 4. Centering plate; 5. Cover; 6. First handle; 7. Rotating shaft; 8. First bevel gear; 9. Second bevel gear; 10. Mounting plate; 11. Detector; 12. Second sliding frame; 13. Slider; 14. Second positive and negative toothed rod; 15. Second handle; 16. Clamping plate; 17. Mounting bracket; 18. Bolt; 19. Friction pad; 20. Guide frame; 21. Guide rail; 22. Moving block; 23. Insert block; 24. Spring; 25. Telescopic rod; 26. Third handle; 27. Stud; 28. Friction block; 29. ​​Reinforcing rib; 30. First elastic dust cover; 31. Second elastic dust cover. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-6 A leak detection device for thermal applications includes a clamping assembly and a detection assembly. The centering assembly includes a base plate 1, a first sliding frame 2, a first positive and negative toothed rod 3, a driver, a centering plate 4, and a clamp. The first sliding frame 2 is symmetrically arranged on the front and rear sides above the base plate 1. A first sliding groove is provided on the adjacent side of the two first sliding frames 2. The first positive and negative toothed rod 3 is rotatably arranged in the first sliding groove. Two symmetrically arranged centering plates 4 are also provided above the base plate 1. The front and rear sides of the centering plate 4 extend into the corresponding first sliding groove and are threadedly connected to the first positive and negative toothed rod 3. A clamp is provided on the adjacent side of the two centering plates 4. A driver for driving the two first positive and negative toothed rods 3 to rotate is also provided below the base plate 1. The driver includes a cover 5, a first handle 6, a rotating shaft 7, a first bevel gear 8, and a second bevel gear 9. The cover 5 is disposed below the base plate 1. The rotating shaft 7 is rotatably disposed inside the cover 5. Two first bevel gears 8 are disposed on the rotating shaft 7. The first positive and negative toothed rod 3 passes through the first sliding frame 2, the base plate 1, and the cover 5 and is connected to the second bevel gear 9. The second bevel gear 9 meshes with the first bevel gear 8. The rotating shaft 7 passes through the cover 5 and is connected to the first handle 6. The centering component is arranged in two symmetrical configurations. A detection component is also assembled between the corresponding clamps on the left and right sides. The detection component includes a mounting plate 10, a connector, and a detector 11. The detector 11 is provided on the mounting plate 10, and connectors that connect to the corresponding clamps are provided on the left and right sides of the mounting plate 10.

[0018] Rotating the first handle 6 drives the first bevel gear 8 to rotate via the rotating shaft 7. The first bevel gear 8 meshes with the second bevel gear 9, driving the first positive and negative tooth rod 3 to rotate synchronously. The first positive and negative tooth rod 3 drives the centering plate 4 to move synchronously in opposite directions along the first sliding groove, thereby driving the clamp to automatically center and evenly clamp the outer wall of the pipe. In this embodiment, the clamp includes a clamping plate 16, a mounting frame 17, bolts 18, friction pads 19, and guide frames 20. Friction pads 19 are provided on the adjacent sides of the two clamping plates 16 arranged vertically. Mounting frames 17 connected to the corresponding centering plate 4 are provided on the opposite sides of the two clamping plates 16. The mounting frame 17 is T-shaped and is also provided with bolts 18 connected to the centering plate. Several sets of guide frames 20 are also provided on the opposite sides of the two clamping plates 16. The inner side of the clamp is equipped with a friction pad 19 to increase the clamping friction, so that it will not shift, loosen or damage the pipe, and can be adapted to thermal pipes of different diameters and specifications. In actual use, before the two alignment components are connected to the pipeline, it is necessary to adjust the distance between the two alignment components to facilitate the subsequent assembly of the inspection components. For this purpose, the equipment also includes a distance adjustment component for driving the two alignment components to move towards each other. The distance adjustment component includes a second sliding frame 12, a slider 13, a second positive and negative toothed rod 14 and a second handle 15. A second sliding groove is provided above the second sliding frame 12. The second positive and negative toothed rod 14 is rotatably arranged in the second sliding groove. Two symmetrically arranged sliders 13 are also provided on the second sliding groove. The sliders 13 are threadedly connected to the second positive and negative toothed rod 14. The second positive and negative toothed rod 14 passes through the second sliding frame 12 and is connected to the second handle 15. The corresponding cover 5 is set on the corresponding second handle 15.

[0019] Rotating the second handle 15 drives the second positive and negative toothed rod 14 to rotate, causing the slider 13 to move synchronously towards and away from each other along the second slide groove, thereby adjusting the overall distance between the two sets of centering components; it can be freely adapted to the mounting plate 10 and detector 11 of different lengths and specifications, realizing the adaptation of one device to multiple scenarios and multiple specifications of pipeline detection.

[0020] In this embodiment, the connector includes a guide rail 21, a movable block 22, an insert block 23, an elastic element, and a positioning element. The mounting bracket 17 has guide rails 21 symmetrically arranged on its left and right sides. The guide frame 20 has mounting grooves adapted to the guide rails 21. A movable block 22 is slidably arranged on the guide rail 21. The mounting plate 10 also has elastic elements symmetrically arranged on its left and right sides, connected to the movable block 22. An insert block 23 is provided at the end of the movable block 22 away from the elastic element, which is inserted into the guide frame 20. A positioner is located on the movable block 22 near the elastic element. The end is also provided with a positioning component adapted to the guide rail 21. The elastic component includes a spring 24 and a telescopic rod 25. The spring 24 is sleeved on the telescopic rod 25. Both ends of the spring 24 and the telescopic rod 25 are respectively connected to the mounting plate 10 and the moving block 22. The positioning component includes a third handle 26, a stud 27 and a friction block 28. The stud 27 passes through the moving block 22 and is connected to the friction block 28. A third handle 26 is also provided above the stud 27. A reinforcing rib 29 connected to the guide frame 20 is also provided on the clamping plate 16.

[0021] Place the mounting plate 10 between the left and right clamps, and push the moving block 22 along the guide rail 21 through the elastic element to insert the insert 23 into the guide frame 20 for quick positioning; rotate the third handle 26 to drive the stud 27 to drive the friction block 28 to press the guide rail 21 to achieve locking and fixation; when disassembling, rotate the third handle 26 in the opposite direction to release the friction block 28, compress the elastic element and pull out the insert 23, realizing one-click quick disassembly and assembly of the detection component without tools, which is convenient for quick replacement and maintenance of the detector 11 on site. The lower end of the insert 23 away from the mounting plate 10 is provided with an inclined surface to ensure stable assembly of the mounting plate 10.

[0022] The clamp is detachably connected to the mounting bracket 17 via bolt 18, allowing for quick replacement of the corresponding clamp model according to different pipe diameters and specifications, further enhancing the versatility and adaptability of the device.

[0023] In this embodiment, a first elastic dust cover 30 is also provided on the first sliding frame 2. The first elastic dust cover 30 is disposed around the centering plate 4. A second elastic dust cover 31 is also provided on the second sliding frame 12. The second elastic dust cover 31 is disposed around the slider 13. It effectively prevents dust, impurities, and jamming, and is suitable for use in dusty environments at construction sites. It has a longer service life and a lower failure rate.

[0024] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0025] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0026] 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.

Claims

1. A leak detection device for thermal applications, comprising a clamping assembly and a detection assembly, characterized in that, The centering assembly includes a base plate (1), a first sliding frame (2), a first positive and negative toothed rod (3), a driver, a centering plate (4), and a clamp. The first sliding frame (2) is symmetrically arranged on the front and rear sides above the base plate (1). A first sliding groove is provided on the adjacent side of the two first sliding frames (2). The first positive and negative toothed rod (3) is rotatably arranged in the first sliding groove. Two symmetrically arranged centering plates (4) are also provided above the base plate (1). The front and rear sides of the centering plate (4) extend into the corresponding first sliding groove and are threadedly connected to the first positive and negative toothed rod (3). A clamp is provided on the adjacent side of the two centering plates (4). A driver for driving the two first positive and negative toothed rods (3) to rotate is also provided below the base plate (1). The driver includes a cover (5), a first handle (6), a rotating shaft (7), a first bevel gear (8), and a second bevel gear (9). The cover (5) is provided below the base plate (1). The rotating shaft (7) is rotatably arranged inside the cover (5). Two first bevel gears (8) are provided on the rotating shaft (7). The first positive and negative tooth rod (3) passes through the first slide frame (2), the base plate (1), and the cover (5) and is connected to the second bevel gear (9). The second bevel gear (9) meshes with the first bevel gear (8). The rotating shaft (7) passes through the cover (5) and is connected to the first handle (6). The centering component is arranged in two symmetrical arrangements. A detection component is also assembled between the corresponding clamps on the left and right sides. The detection component includes a mounting plate (10), a connector and a detector (11). The detector (11) is provided on the mounting plate (10). Connectors that connect to the corresponding clamps are also provided on the left and right sides of the mounting plate (10).

2. The thermal leak detection device according to claim 1, characterized in that, It also includes a spacing adjustment component for driving the two centering components to move towards each other. The spacing adjustment component includes a second slide frame (12), a slider (13), a second positive and negative toothed rod (14), and a second handle (15). A second slide groove is provided above the second slide frame (12). The second positive and negative toothed rod (14) is rotatably arranged in the second slide groove. Two symmetrically arranged sliders (13) are also provided on the second slide groove. The sliders (13) are threadedly connected to the second positive and negative toothed rod (14). The second positive and negative toothed rod (14) passes through the second slide frame (12) and is connected to the second handle (15). The corresponding cover (5) is set on the corresponding second handle (15).

3. A leak detection device for thermal applications according to claim 1, characterized in that, The clamp includes a clamp plate (16), a mounting bracket (17), a bolt (18), a friction pad (19), and a guide frame (20). Friction pads (19) are provided on the adjacent sides of the two clamp plates (16) arranged vertically. Mounting brackets (17) connected to the corresponding centering plate (4) are provided on the opposite sides of the two clamp plates (16). The mounting brackets (17) are T-shaped. Bolts (18) connected to the centering plate are also provided on the mounting brackets (17). Several sets of guide frames (20) are also provided on the opposite sides of the two clamp plates (16).

4. A leak detection device for thermal applications according to claim 3, characterized in that, The connector includes a guide rail (21), a moving block (22), an insert (23), an elastic element, and a positioning element. The mounting bracket (17) is symmetrically provided with guide rails (21) on both the left and right sides. The guide frame (20) is provided with a mounting groove that matches the guide rail (21). The guide rail (21) is also slidably provided with a moving block (22). The mounting plate (10) is also symmetrically provided with elastic elements that connect to the moving block (22) on both the left and right sides. The moving block (22) is provided with an insert (23) that connects to the guide frame (20) at the end away from the elastic element. The moving block (22) is also provided with a positioning element that matches the guide rail (21) at the end near the elastic element.

5. A leak detection device for thermal applications according to claim 4, characterized in that, The elastic element includes a spring (24) and a telescopic rod (25). The spring (24) is sleeved on the telescopic rod (25). Both ends of the spring (24) and the telescopic rod (25) are connected to the mounting plate (10) and the moving block (22), respectively.

6. A leak detection device for thermal applications according to claim 4, characterized in that, The positioning component includes a third handle (26), a stud (27) and a friction block (28). The stud (27) passes through the moving block (22) and is connected to the friction block (28). A third handle (26) is also provided above the stud (27).

7. A leak detection device for thermal applications according to claim 6, characterized in that, The clamping plate (16) is also provided with reinforcing ribs (29) that are connected to the guide frame (20).

8. A leak detection device for thermal applications according to claim 7, characterized in that, The first sliding frame (2) is also provided with a first elastic dust cover (30), which is located around the centering plate (4).

9. A leak detection device for thermal applications according to claim 8, characterized in that, The second slide frame (12) is also provided with a second elastic dust cover (31), which is disposed around the slider (13).