Pipeline anti-corrosion heating and heat preservation device
Through the adjustable heating cover and supporting components, combined with the variable frequency heater and closing components, the problem of cumbersome position adjustment of the existing heating and insulation device is solved, and convenient and efficient heating and insulation effect of the pipeline anti-corrosion layer is achieved.
Patent Information
- Application Number
- CN202511005967.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2025-09-19
AI Technical Summary
The position adjustment of the heating components of existing heating and insulation devices is cumbersome, time-consuming and labor-intensive, and cannot meet the efficient heating requirements of pipeline construction.
The adjustable heating cover structure is combined with supporting parts and closing components. The variable frequency heater provides uniform hot air. The heating cover can be adjusted according to demand, and the closing component can reduce the gap with the pipe to improve the insulation effect.
It realizes convenient position adjustment of the heating cover, provides a uniform thermal drying environment, improves the drying efficiency and heating rate of the pipeline anti-corrosion layer, expands the scope of application, and enhances the thermal insulation effect.
Smart Images
Figure CN120667600A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of pipeline processing, and in particular to a pipeline anti-corrosion heating and heat preservation device. Background Art
[0002] Heating and insulating the pipeline's anti-corrosion coating is a critical step during pipeline construction. Heating and insulating the coating at welded or connected locations ensures rapid and uniform drying in low-temperature environments, improving construction efficiency and ensuring corrosion protection quality.
[0003] Existing heating and insulation devices mostly use fixed heating structures. Once the heating element is installed outside the pipe, its position is difficult to adjust. To adjust the position of the heating element, the heating element must be removed from the pipe, repositioned, and then fixedly installed outside the pipe. This process is not only time-consuming and labor-intensive, but also cumbersome.
[0004] To this end, we proposed a pipeline anti-corrosion heating and insulation device. Summary of the Invention
[0005] The purpose of the present invention is to solve the above-mentioned deficiencies and provide a pipeline anti-corrosion heating and heat preservation device.
[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention is implemented by the following technical solutions: a pipeline anti-corrosion heating and insulation device, including a heating part for heating the anti-corrosion layer of the pipeline main body, including a heating cover symmetrically arranged on the outside of the pipeline main body, and the bottom side of the heating cover located on one side of the pipeline main body is connected to an air supply pipe, and the tail end of the air supply pipe is connected to a variable frequency heater for conveying hot air to the heating cover. Through the operation of the variable frequency heater, an appropriate amount of hot air can be conveyed into the air supply pipe, and the hot air is conveyed to the inside of the heating cover through the air supply pipe. The hot air running inside the heating cover can provide a uniform thermal drying environment for the pipeline main body inside the heating cover, thereby accelerating the drying efficiency of the anti-corrosion layer of the pipeline main body.
[0007] The support part is used to support the heating part, including a support block 1 rotatably connected to both sides of the heating cover and a support block 2 arranged on the outside of the support block 1. A through hole is provided at one end of the support block 2, and a stud fixed to the heating cover is slidably passed through the through hole. A connecting column is fixed to the other end of the support block 2. The support block 1 is provided with a plurality of connecting holes that slide with the connecting columns. The heating cover can be supported by the operation of the support part, and the corresponding height of the heating cover can be adjusted according to usage requirements.
[0008] As a further improvement of the above solution, the outer wall threads at both ends of the stud are connected with a limiting sleeve for limiting the displacement of the support block 2. The support block 2 is located between the two limiting sleeves. The diameter of the limiting sleeve is larger than the aperture of the perforation. The corresponding position of the support block 2 can be limited by the limiting sleeve.
[0009] As a further improvement of the above solution, multiple fixing blocks are provided between the two heating covers, and bolts are threadedly connected to both ends of the fixing blocks. The heating covers are provided with threaded grooves that cooperate with the bolt threads. The two heating covers can be installed on the outside of the pipeline body through the cooperation between the bolts on the fixing blocks and the threaded grooves on the heating covers.
[0010] As a further improvement of the above scheme, a closing component for reducing the gap between the heating hood and the pipeline body is provided in the heating hood, and the closing component includes mounting grooves provided on the inner sides of both ends of the heating hood and an inner membrane fixed in the mounting groove. A scraper for scraping off attachments attached to the inner wall of the heating hood is slidably connected in the heating hood, and the heating hood is provided with a plurality of ventilation holes. A plurality of connecting columns for closing the ventilation holes are slidably penetrated in the scraper, and a plurality of connecting columns for slidingly inserting into adjacent ventilation holes are provided. The connecting column one is provided with a receiving groove at one end away from the ventilation hole, and a connecting column two is slidably inserted into the interior of the receiving groove. The external movable sleeve of the connecting column two is provided with a transmission sleeve fixed to one end of the connecting column. Through the operation of the above components, the gap between the heating hood and the pipeline body can be reduced, the heat preservation effect of the heating hood on the pipeline body can be improved, and the temperature inside the heating hood can be quickly increased.
[0011] As a further improvement of the above solution, an insulation layer is provided on the inner wall of the heating hood, and the inner membrane is in a loose and folded state. By installing the inner membrane in the loose and folded state inside the groove, the hot air can be caused to run inside the heating hood, causing the inner membrane to be tightly attached to the outside of the pipe body.
[0012] As a further improvement of the above solution, the diameter of the connecting column 1 is larger than the inner diameter of the transmission sleeve. The transmission sleeve can be fixed to the end of the connecting column 1 through the connecting column 1 having a diameter larger than the inner diameter of the transmission sleeve.
[0013] As a further improvement of the above-mentioned solution, a reset spring 1 is fixed between the two ends of the connecting column located inside the accommodating groove and the inner wall of the end of the accommodating groove, which is used to push the displaced connecting column 1 to reset the displacement. When the scraper is separated from the transmission sleeve, the elasticity of the reset spring 1 can push the connecting column 1 and the transmission sleeve to reset the displacement.
[0014] As a further improvement of the above solution, a temperature sensor for detecting the temperature inside the heating hood is installed in the heating hood. The temperature inside the heating hood can be detected by the temperature sensor.
[0015] As a further improvement of the above scheme, the two ends of the scraper are slidably penetrated by guide rods fixed in the heating cover, and the outer movable sleeve of the guide rod is provided with a second reset spring fixed between the scraper and the inner wall of the heating cover. The elasticity of the second reset spring can pull the displaced scraper to reset the displacement, and the displaced scraper can be guided by the guide rod to improve the stability of the displaced scraper.
[0016] As a further improvement of the above solution, the length of the second return spring in the stretched state is greater than the length of the guide rod. The scraper can be flexibly displaced by the second return spring whose length in the stretched state is greater than the length of the guide rod.
[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can provide a uniform heat drying environment for the pipeline inside the heating cover, accelerate the drying efficiency of the pipeline anti-corrosion layer, and can simply and conveniently adjust the corresponding position of the heating component according to the use requirements, which is easy to use. The supporting assembly of the heating component can be adaptively regulated according to the installation environment of the pipeline, and has a wide range of applications.
[0018] 2. The present invention can reduce the gap between the heating component and the pipeline, improve the heat preservation effect of the heating component on the pipeline, and can quickly heat up the heating component according to the heating requirements of the pipeline, thereby increasing the heating rate of the pipeline and having high working performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of a pipeline anti-corrosion heating and insulation device; Figure 2 This is a schematic diagram of a heating cover in a pipeline anti-corrosion heating and insulation device; Figure 3 This is a cross-sectional view of an air supply pipe in a pipeline anti-corrosion heating and insulation device; Figure 4 It is a cross-sectional view of a heating cover in a pipeline anti-corrosion heating and insulation device; Figure 5 This is a cross-sectional view of a guide rod in a pipeline anti-corrosion heating and insulation device; Figure 6 This is a cross-sectional view of a connecting column 1 in a pipeline anti-corrosion heating and insulation device; Figure 7 for Figure 2 Schematic diagram of the structure enlarged at point A in the middle.
[0020] In the figure: 1. Pipe body; 2. Heating cover; 3. Support block 1; 4. Support block 2; 5. Stud; 6. Limiting sleeve; 7. Connecting hole; 8. Air supply pipe; 9. Fixing block; 10. Inner membrane; 11. Scraper; 12. Connecting column 1; 13. Transmission sleeve; 14. Connecting column 2; 15. Reset spring 1; 16. Guide rod; 17. Reset spring 2; 18. Bolt; 19. Ventilation hole; 20. Mounting slot. DETAILED DESCRIPTION
[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0022] Example 1: Combine Figure 1 、 Figure 2 and Figure 7 The pipeline anti-corrosion heating and heat preservation device of this embodiment includes: a heating portion for heating the anti-corrosion layer of the pipeline body 1, including a heating cover 2 symmetrically arranged on the outside of the pipeline body 1, an air supply pipe 8 connected to the bottom side of the heating cover 2 located on one side of the pipeline body 1, and a variable frequency heater connected to the tail end of the air supply pipe 8 for supplying hot air to the heating cover 2; The support part is used to support the heating part, including a support block 3 rotatably connected to both sides of the heating cover 2 and a support block 2 4 arranged on the outside of the support block 3. The support block 3 is fixed with a connecting shaft rotatably connected to the heating cover 2 at one end close to the heating cover 2. The support block 3 can be rotatably connected to the heating cover 2 through the connecting shaft. A through-hole is provided at one end of the support block 24, and a stud 5 fixed to the heating cover 2 is slidably penetrated through the through-hole. A connecting column is fixed to the other end of the support block 24, and the support block 3 is provided with a plurality of connecting holes 7 that slide with the connecting column.
[0023] The outer walls of both ends of the stud 5 are threadedly sleeved with limiting sleeves 6 for limiting the displacement of the supporting block 2 4 . The supporting block 2 4 is located between the two limiting sleeves 6 , and the diameter of the limiting sleeve 6 is larger than the aperture of the perforation.
[0024] The implementation principle of a pipeline anti-corrosion heating and heat preservation device in the embodiment of the present application is as follows: through the operation of the variable frequency heater, an appropriate amount of hot air can be delivered to the air supply pipe 8, and the hot air can be delivered to the inside of the heating cover 2 through the air supply pipe 8. The hot air running inside the heating cover 2 can provide a uniform heat drying environment for the pipeline body 1 inside the heating cover 2, thereby accelerating the drying efficiency of the anti-corrosion layer of the pipeline body 1. The heating cover 2 can be supported on the outside of the pipeline body 1 by the support block 3. When the position of the heating cover 2 needs to be adjusted, the heating cover 2 can be pushed to drive the heating cover 2 to heat the pipeline body 1. The cover 2 is displaced vertically, driving the support block 3 at the bottom of the heating cover 2 to displace vertically. When the support block 3 is separated from the placement ground, the heating cover 2 and the support block 3 can be pulled to drive the heating cover 2 and the support block 3 to displace outside the pipe body 1. After the heating cover 2 is displaced to the corresponding position, the heating cover 2 is loosened. When the support block 3 on the heating cover 2 is supported on the use ground, the heating cover 2 is firmly in the use ground. At this time, the heating cover 2 can be used to heat and insulate the anti-corrosion layer of the pipe body 1. When the device is in use, When the support block 1 3 is to be adjusted according to the distance between the pipe body 1 and the ground below, the limiting sleeve 6 is rotated, and the limiting sleeve 6 is driven to move by the threaded fit of the limiting sleeve 6 and the stud 5. When the limiting sleeve 6 is separated from the support block 2 4, the support block 2 4 can be pulled to move the support block 2 4. When the connecting column on the support block 2 4 is separated from the connecting hole 7, the support block 1 3 can be pulled and driven to rotate by the matching rotation of the connecting shaft. At this time, the corresponding position of the support block 1 3 can be adjusted. When the support block 3 is adjusted, After reaching the corresponding position, the support block 2 4 can be pulled to drive the support block 2 4 to deflect. When the connecting column on the support block 2 4 corresponds to the corresponding connecting hole 7, the support block 2 4 can be pushed to drive the support block 2 4 to move. When the connecting column on the support block 2 4 enters the corresponding connecting hole 7, the limiting sleeve 6 is rotated, and the limiting sleeve 6 is driven to move through the threaded cooperation between the limiting sleeve 6 and the stud 5. When the limiting sleeve 6 contacts the support block 2 4, the support block 1 3 is limited by the support block 2 4, and the corresponding position adjustment of the support block 1 3 is completed.
[0025] Multiple fixing blocks 9 are provided between the two heating covers 2. Bolts 18 are threadedly connected to both ends of the fixing blocks 9. The heating covers 2 are provided with threaded grooves that cooperate with the threads of the bolts 18. Through the cooperation between the bolts 18 on the fixing blocks 9 and the threaded grooves on the heating covers 2, the two heating covers 2 can be installed on the outside of the pipeline body 1.
[0026] Example 2: Combine Figure 3 、 Figure 4 and Figure 5, based on the embodiment 1, the present embodiment is further improved in that: a closing component for reducing the gap between the heating cover 2 and the pipe body 1 is provided in the heating cover 2, the closing component includes a mounting groove 20 provided on the inner side of both ends of the heating cover 2 and an inner membrane 10 fixed in the mounting groove 20, the inner membrane 10 at both ends of the heating cover 2 is located on both sides of the welding part or the connection part of the pipe body 1, a scraper 11 for scraping off the attachments attached to the inner wall of the heating cover 2 is slidably connected in the heating cover 2, the heating cover 2 is provided with a plurality of ventilation holes 19, and the scraper 11 slides in the inner side of the heating cover 2. A plurality of connecting posts 12 are provided which are slidably inserted into adjacent ventilation holes 19 and are used to close the ventilation holes 19. A receiving groove is provided at one end of the connecting post 12 away from the ventilation hole 19. A connecting post 2 14 is slidably inserted into the interior of the receiving groove. The external movable sleeve of the connecting post 2 14 is provided with a transmission sleeve 13 fixed to the end of the connecting post 12. When the air supply pipe 8 delivers the hot air to the interior of the heating cover 2, the hot air entering the interior of the heating cover 2 will push the scraper 11 inside the heating cover 2 to move. At this time, the displaced scraper 11 will scrape off The attachments attached to the inner wall of the heating cover 2 are prevented from affecting the heat transfer of the heating cover 2, thereby improving the heating efficiency of the heating cover 2 on the pipe body 1. As the scraper 11 moves, it will pass through the inner film 10. At this time, the hot air inside the heating cover 2 will agitate the inner film 10 in the installation groove 20, causing the inner film 10 in the installation groove 20 to be closely attached to the outside of the pipe body 1, reducing the gap between the heating cover 2 and the pipe body 1, and improving the heat preservation effect of the heating cover 2 on the pipe body 1. In normal working mode, the delivery speed of the variable frequency heater is 2000. The air volume will not push the scraper 11 to contact with the transmission sleeve 13. When it is necessary to continuously increase the temperature inside the heating hood 2, the air supply of the variable frequency heater can be increased to push the scraper 11 to contact with the transmission sleeve 13, push the transmission sleeve 13 to move, and drive the connecting column 12 to move. The displaced connecting column 12 opens the ventilation hole 19. At this time, the opened ventilation hole 19 can discharge part of the hot air inside the heating hood 2. At this time, the variable frequency heater can continuously deliver hot air to the heating hood 2, thereby quickly raising the temperature inside the heating hood 2.
[0027] An insulation layer is provided on the inner wall of the heating cover 2, and the inner membrane 10 is in a loose and folded state. By installing the inner membrane 10 in the loose and folded state inside the groove 20, the hot air can be run inside the heating cover 2, prompting the inner membrane 10 to be closely attached to the outside of the pipe body 1.
[0028] Example 3: Combine Figure 6 Based on Example 2, this embodiment is further improved in that the diameter of the connecting column 12 is larger than the inner diameter of the transmission sleeve 13. The transmission sleeve 13 can be fixed to the end of the connecting column 12 through the connecting column 12 whose diameter is larger than the inner diameter of the transmission sleeve 13.
[0029] A reset spring 15 is fixed between the end of the connecting column 2 14 located inside the accommodating groove and the inner wall of the end of the accommodating groove, which is used to push the displaced connecting column 12 to reset. When the scraper 11 is separated from the transmission sleeve 13, the elasticity of the reset spring 15 can push the connecting column 12 and the transmission sleeve 13 to reset.
[0030] A temperature sensor for detecting the internal temperature of the heating cover 2 is installed in the heating cover 2. The temperature inside the heating cover 2 can be detected by the temperature sensor.
[0031] The two ends of the scraper 11 are slidably penetrated by guide rods 16 fixed in the heating cover 2. The outer movable sleeve of the guide rod 16 is provided with a reset spring 17 fixed between the scraper 11 and the inner wall of the heating cover 2. When the air supply pipe 8 stops conveying hot air into the interior of the heating cover 2, the elasticity of the reset spring 17 can pull the displaced scraper 11 to reset the displacement. The displaced scraper 11 can be guided by the guide rod 16 to improve the stability of the displaced scraper 11.
[0032] The length of the restoring spring 2 17 in the stretched state is greater than the length of the guide rod 16. The restoring spring 2 17 whose length in the stretched state is greater than the length of the guide rod 16 can allow the scraper 11 to be flexibly displaced, avoiding the situation where the restoring spring 2 17 is too short, resulting in the restoring spring 2 17 being unable to be displaced.
[0033] 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 rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.
Claims
1. A pipeline anti-corrosion heating and insulation device, characterized in that: include: A heating portion for heating the anti-corrosion layer of the pipe body (1), comprising a heating cover (2) symmetrically arranged on the outside of the pipe body (1), an air supply pipe (8) being connected to the bottom side of the heating cover (2) located on one side of the pipe body (1), and a variable frequency heater for conveying hot air to the heating cover (2) being connected to the tail end of the air supply pipe (8); The support portion is used to support the heating portion, comprising a support block 1 (3) rotatably connected to both sides of the heating cover (2) and a support block 2 (4) arranged outside the support block 1 (3), one end of the support block 2 (4) is provided with a through hole, a stud (5) fixed to the heating cover (2) is slidably passed through the through hole, a connecting column is fixed to the other end of the support block 2 (4), and the support block 1 (3) is provided with a plurality of connecting holes (7) that slidably cooperate with the connecting columns.
2. A pipeline anti-corrosion heating and heat preservation device according to claim 1, characterized in that: The outer walls of both ends of the stud (5) are threadedly sleeved with limiting sleeves (6) for limiting the displacement of the supporting block 2 (4), the supporting block 2 (4) is located between the two limiting sleeves (6), and the diameter of the limiting sleeve (6) is larger than the diameter of the perforation.
3. The pipeline anti-corrosion heating and heat preservation device according to claim 1, characterized in that: A plurality of fixing blocks (9) are provided between the two heating covers (2), both ends of the fixing blocks (9) are threadedly connected with bolts (18), and the heating covers (2) are provided with threaded grooves that are threadedly matched with the bolts (18).
4. A pipeline anti-corrosion heating and heat preservation device according to claim 3, characterized in that: The heating hood (2) is provided with a sealing component for reducing the gap between the heating hood (2) and the pipeline body (1), the sealing component includes a mounting groove (20) provided on the inner side of both ends of the heating hood (2) and an inner membrane (10) fixed in the mounting groove (20), a scraper (11) is slidably connected in the heating hood (2) for scraping off attachments attached to the inner wall of the heating hood (2), the heating hood (2) is provided with a plurality of ventilation holes (19), a plurality of connecting columns (12) are slidably inserted in adjacent ventilation holes (19) and used to close the ventilation holes (19), the end of the connecting column (12) away from the ventilation hole (19) is provided with a receiving groove, the interior of the receiving groove is slidably inserted with a connecting column (14), and the outer movable sleeve of the connecting column (14) is provided with a transmission sleeve (13) fixed to the end of the connecting column (12).
5. A pipeline anti-corrosion heating and heat preservation device according to claim 4, characterized in that: A heat-insulating layer is provided on the inner wall of the heating cover (2), and the inner membrane (10) is in a relaxed and folded state.
6. The pipeline anti-corrosion heating and heat preservation device according to claim 4, characterized in that: The diameter of the connecting column 1 (12) is larger than the inner diameter of the transmission sleeve (13).
7. The pipeline anti-corrosion heating and heat preservation device according to claim 4, characterized in that: A return spring (15) is fixed between the end of the second connecting column (14) located inside the accommodating groove and the inner wall of the end of the accommodating groove for pushing the displaced connecting column (12) to return to its original position.
8. The pipeline anti-corrosion heating and heat preservation device according to claim 1, characterized in that: A temperature sensor for detecting the internal temperature of the heating cover (2) is installed in the heating cover (2).
9. The pipeline anti-corrosion heating and heat preservation device according to claim 4, characterized in that: Guide rods (16) fixed in the heating cover (2) are slidably provided at both ends of the scraper (11), and the outer movable sleeve of the guide rod (16) is provided with a second return spring (17) fixed between the scraper (11) and the inner wall of the heating cover (2).
10. The pipeline anti-corrosion heating and heat preservation device according to claim 9, characterized in that: The length of the second return spring (17) in the stretched state is greater than the length of the guide rod (16).