An overhead pipeline joint device and its construction process

Abstract

The application relates to the technical field of pipe jointing, in particular to an aerial pipeline jointing device and a construction process thereof. The jointing device comprises a heating assembly, the heating assembly comprises two installation rails capable of being sleeved on the aerial pipeline, the two installation rails are respectively located on the two sides of the jointing position of the aerial pipeline, an installation rod is arranged between the two installation rails, heating fins for heating are arranged on the installation rod, and a driving piece for driving the installation rod to move along the circumference of the aerial pipeline on the installation rail is arranged on the installation rail. The aerial pipeline jointing effect is guaranteed, and the time and labor are saved.

Description

TECHNICAL FIELD

[0001] The application relates to a pipeline jointing device and a construction process thereof. BACKGROUND

[0002] At present, the main body of the prefabricated overhead steam heat preservation pipeline is a finished heat preservation pipeline which is prefabricated in a factory through various equipment and advanced processes, and the heat preservation performance, sealing performance and anti-seismic performance of the product are relatively good.

[0003] It is recorded in the related documents that, as the design requirements of the steel grade, pipe diameter and wall thickness of the overhead pipeline are continuously improved, the increase of the pipe diameter and wall thickness leads to a sharp increase in the pressure of the pipeline jointing in the pipeline engineering.

[0004] The inventor finds that, at present, the overhead pipeline jointing process is mostly that the workers use a torch to heat the heat shrinkable tape wrapped around the damaged part of the pipeline, and complete the pipeline jointing operation. For the pipeline with a large pipe diameter, the manual flame roasting method is easily affected by improper operation and other factors, leading to uneven heating of the heat shrinkable tape, large temperature difference, low jointing work efficiency, difficult control of jointing quality and large safety hazards, and finally leading to poor pipeline jointing effect. SUMMARY

[0005] In order to ensure the overhead pipeline jointing effect and save time and manpower, the application provides an overhead pipeline jointing device and a construction process thereof.

[0006] The above technical purpose of the application is achieved through the following technical scheme:

[0007] An overhead pipeline jointing device comprises a heating assembly, the heating assembly comprises two installation rails capable of being sleeved on the overhead pipeline, the two installation rails are respectively located on the two sides of the jointing position of the overhead pipeline, an installation rod is arranged between the two installation rails, a heating sheet for heating is arranged on the installation rod, and a driving piece for driving the installation rod to move along the circumference of the overhead pipeline on the installation rail is arranged on the installation rail.

[0008] Through the above scheme, after the heat shrinkable tape is wound at the jointing position of the overhead pipeline, the two installation rails are respectively installed on the two sides of the jointing position, and then the heating sheet is installed on the installation rod. At this time, the heating sheet needs to be aligned with the heat shrinkable tape at the jointing position. After the driving piece and the heating sheet are started, the driving piece drives the heating sheet to reciprocate around the circumference of the overhead pipeline on the installation rail. The heating sheet moves while roasting the heat shrinkable tape. In this way, the possibility of uneven heating of the heat shrinkable tape can be reduced, and the workers do not need to use manpower to roast the heat shrinkable tape. The effect of ensuring the overhead pipeline jointing effect and saving time and manpower is achieved.

[0009] Preferably, the mounting rail includes two semi-annular mounting rings, with a connector between the two mounting rings. Each mounting ring has multiple abutment plates on its inner side, and an adjustment component on the mounting ring that drives the abutment plates to reciprocate along the radial direction of the mounting ring.

[0010] Preferably, the adjusting member includes an adjusting rod extending radially along the mounting ring, the adjusting rod passing through the mounting ring and being threadedly connected to the mounting ring, and the end of the adjusting rod near the abutment being rotatably connected to the abutment.

[0011] Preferably, a through groove is formed on the outer surface of the adjusting rod along its length, and a scale groove is formed inside the through groove to determine the moving distance of the adjusting rod.

[0012] Preferably, the connector includes a connecting rod fixed to one end of the mounting ring, the connecting rod extending away from the mounting ring, a tenon being provided at the end of the connecting rod away from the mounting ring, a connecting hole being provided on the other end face of the mounting ring for use with the connecting rod and the tenon, and a disassembly hole being provided on one side of the connecting hole for separating the connecting rod and the tenon from the connecting hole.

[0013] Preferably, the driving component includes a connecting block embedded in the inner surface of the mounting rail and connected to the mounting rod. The connecting blocks are close to each other on the two mounting rails. An annular relief groove for the connecting blocks to move is formed on the outer surface of the mounting rail. The connecting block is provided with a moving wheel that abuts against the bottom of the relief groove. The mounting rail is provided with a drive motor that drives the moving wheel to rotate on the connecting block.

[0014] Preferably, an auxiliary rod is provided between the connecting block and the mounting rod, and the auxiliary rod and the connecting block, as well as the auxiliary rod and the mounting rod, are connected by a damper hinge.

[0015] Preferably, there are two mounting rods, each corresponding to one of the two mounting rails. A U-shaped fixing rod is provided at the end of the two mounting rods that are close to each other. The openings on the two fixing rods face the side that is close to each other. A mounting groove for the heating element to enter is provided on the end face of the two fixing rods that are close to each other.

[0016] Preferably, a connector is provided between the two fixed rods to connect the two fixed rods.

[0017] This application also provides a construction process for repairing joints in overhead pipelines, including the following steps:

[0018] Cleaning: Clean the surface of the overhead pipeline at the joint location and remove debris from the outer surface of the overhead pipeline;

[0019] Wrapping: Wrap heat-shrinkable tape around the joint of the overhead pipeline;

[0020] Installation: install two installation rails on both sides of the heat shrinkable tape, rotate the adjusting rod, and make the abutting piece abut against the overhead pipeline. At this time, it is necessary to ensure that the installation rail is coaxial with the overhead pipeline;

[0021] Fine adjustment: install the heating piece on the fixing rod, adjust the angle between the auxiliary rod and the installation rod, and the angle between the auxiliary rod and the connecting block, and adjust the distance between the heating piece and the heat shrinkable tape;

[0022] Baking: start the driving motor, the driving motor drives the driving wheel to rotate, the driving wheel drives the connecting block to rotate on the installation ring, and the heating piece bakes the heat shrinkable tape.

[0023] In summary, the present application has the following technical effects:

[0024] 1. By setting the heating assembly including the driving member and the installation rail, after winding the heat shrinkable tape at the joint, the driving member drives the heating piece to move around the overhead pipeline in the circumferential direction. The heating piece bakes the heat shrinkable tape, which ensures the joint effect of the overhead pipeline and saves time and labor.

[0025] 2. By setting the abutting piece and the adjusting member, the inner diameter of the installation rail is larger. When the outer diameter of the overhead pipeline becomes smaller, people can adjust the position of the abutting piece after the installation rail is installed on the overhead pipeline through the adjusting member until the abutting piece abuts against the outer surface of the overhead pipeline. Thus, the installation rail can be fixed, and the abutting piece and the adjusting member expand the application range of the installation rail.

[0026] 3. By setting the auxiliary rod hinged with the connecting block and the installation rod, after the heating piece is installed between the two installation rails, the worker can adjust the distance between the heating piece and the heat shrinkable tape by adjusting the angle between the connecting block and the auxiliary rod and the angle between the auxiliary rod and the installation rod as needed. Thus, the heating assembly is more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall structure diagram of the overhead pipeline joint device in the embodiment of the present application;

[0028] Figure 2 is a partial view highlighting the structure of the connecting member in the embodiment of the present application;

[0029] Figure 3 is a partial sectional view highlighting the structure of the driving member in the embodiment of the present application.

[0030] In the figure, 1, heating assembly; 2, heat shrinkable tape; 3, mounting rail; 31, mounting ring; 311, connecting hole; 32, connecting piece; 321, connecting rod; 322, tenon; 33, abutting piece; 34, adjusting piece; 341, adjusting rod; 342, adjusting handle; 4, mounting rod; 5, fixed rod; 51, mounting groove; 6, heating piece; 7, driving piece; 71, connecting block; 72, moving wheel; 73, auxiliary rod; 74, driving motor; 8, overhead pipeline. DETAILED DESCRIPTION

[0031] The application will be further described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1 The application provides an overhead pipeline jointing device, which comprises a heating assembly 1 and a heat shrinkable tape 2, the heat shrinkable tape 2 is wound at the jointing position of the overhead pipeline 8, and the heating assembly 1 is arranged on the overhead pipeline 8 and can bake the wound heat shrinkable tape 2.

[0033] The heating assembly 1 comprises a mounting rail 3, a mounting rod 4, a fixed rod 5, a heating piece 6 and a driving piece 7, the mounting rail 3 is provided with two, the two mounting rails 3 are sleeved on the overhead pipeline 8 and are located at the two sides of the heat shrinkable tape 2 respectively; the mounting rod 4 is arranged on the mounting rail 3, the mounting rod 4 is also provided with two, the two mounting rods 4 correspond to the two mounting rails 3 respectively, and the two mounting rods 4 are arranged between the two mounting rails 3; the fixed rod 5 is arranged on the side, away from the mounting rail 3, of the mounting rod 4, the fixed rod 5 is also provided with two, the two fixed rods 5 correspond to the two mounting rods 4 respectively, the two fixed rods 5 are arranged on the side, close to each other, of the two mounting rods 4, the fixed rod 5 is in a whole U shape, the openings on the two fixed rods 5 face the side, close to each other, of the two fixed rods 5, a mounting groove 51 is formed on one end face of the fixed rod 5, the mounting groove 51 penetrates through the other end face of the fixed rod 5 along the running direction of the fixed rod 5, and the mounting groove 51 penetrates through the inner surface of the fixed rod 5, the two mounting grooves 51 on the two fixed rods 5 together form a mounting groove 51 for mounting the heating piece 6; the driving piece 7 is arranged on the mounting rail 3, and the driving piece 7 can drive the mounting rod 4, the fixed rod 5 and the heating piece 6 to move reciprocatingly on the mounting rail 3 around the circumference of the overhead pipeline 8.

[0034] When the heat shrinkable tape 2 needs to be heated by using the heating assembly 1, first, the mounting rail 3 is sleeved on the overhead pipeline 8, at this time, it is necessary to ensure that the two mounting rails 3 are located at the two sides of the heat shrinkable tape 2 respectively, and then the heating piece 6 is mounted between the two fixed rods 5; after the heating piece 6 and the driving piece 7 are started, the driving piece 7 drives the heating piece 6 to move reciprocatingly on the mounting rail 3 around the circumference of the overhead pipeline 8 through the mounting rod 4 and the fixed rod 5, so that the heat shrinkable tape 2 can be heated more uniformly, the jointing effect of the overhead pipeline 8 is ensured, and the time and labor are saved.

[0035] With reference to Figure 1 And Figure 2 , the mounting rail 3 comprises a mounting ring 31, a connecting piece 32, abutting pieces 33 and an adjusting piece 34, the mounting ring 31 is in the shape of a semicircular arc as a whole, two mounting rings 31 are provided, and the two mounting rings 31 can be shaped into a complete arc after being butted against each other, and the mounting rod 4 is arranged on the mounting ring 31; the connecting piece 32 is arranged at one end of the mounting ring 31 for connecting the two mounting rings 31 together, the abutting pieces 33 are provided in multiple, the multiple abutting pieces 33 are evenly divided into two groups, the two groups of abutting pieces 33 correspond to the two mounting rings 31, the multiple abutting pieces 33 corresponding to one mounting ring 31 are evenly and spacedly distributed along a circumference, and the adjusting piece 34 is arranged on the mounting ring 31 and can drive the abutting pieces 33 to reciprocate along the radial direction of the mounting ring 31. When the mounting rail 3 needs to be installed on the overhead pipeline 8, the two mounting rings 31 are respectively sleeved on the overhead pipeline 8, then the abutting pieces 33 are driven by the adjusting piece 34 to move towards the overhead pipeline 8 until the abutting pieces 33 abut on the outer surface of the overhead pipeline 8, and it should be noted that when all the abutting pieces 33 abut on the outer surface of the overhead pipeline 8, the overhead pipeline 8 needs to be coaxial with the mounting ring 31.

[0036] With reference to Figure 2 , the connecting piece 32 comprises a connecting rod 321 and a tenon 322, one end of the connecting rod 321 is fixedly connected with one end face of the mounting ring 31, and the length direction of the connecting rod 321 is perpendicular to the end face of the mounting ring 31, the tenon 322 is in the shape of a right triangle in cross section, the tenon 322 is fixedly connected to the end face of the connecting rod 321 away from the mounting ring 31, and a connecting hole 311 is formed in the other end face of the mounting ring 31 for the connecting rod 321 and the tenon 322 to be inserted into; after the two mounting rings 31 are butted against each other to form a circular ring, the connecting rod 321 and the tenon 322 on one of the mounting rings 31 are inserted into the connecting hole 311 of the other mounting ring 31, so that the two mounting rings 31 can be connected; in order to facilitate the separation of the two mounting rings 31, a dismounting hole communicating with the connecting hole 311 is formed on one side of the connecting hole 311.

[0037] The adjusting member 34 comprises an adjusting rod 341 and an adjusting handle 342. The adjusting rod 341 is arranged on the mounting ring 31, and the central axis direction of the adjusting rod 341 is the same as the radial direction of the mounting ring 31. The adjusting rod 341 is threadedly connected with the mounting ring 31. One end of the adjusting rod 341 close to the abutting piece 33 extends to the inside of the abutting piece 33 and is rotationally connected with the abutting piece 33. The other end of the adjusting rod 341 away from the abutting piece 33 extends to the outside of the mounting ring 31. The adjusting handle 342 is fixedly connected with the other end of the adjusting rod 341 away from the abutting piece 33. When the position of the abutting piece 33 needs to be adjusted, the adjusting handle 342 drives the adjusting rod 341 to rotate. The adjusting rod 341 is threadedly connected with the mounting ring 31, and the adjusting rod 341 is rotationally connected with the abutting piece 33. Therefore, the adjusting rod 341 drives the abutting piece 33 to move towards or away from the center line of the mounting ring 31.

[0038] After the position of the abutting piece 33 is adjusted, in order to keep the mounting ring 31 coaxial with the overhead pipeline 8, a through groove is arranged on the outer surface of the adjusting rod 341, and the length direction of the through groove is the same as the central axis direction of the adjusting rod 341. A plurality of scale grooves are arranged in the through groove. After the abutting piece 33 is adjusted by the adjusting rod 341, the staff can observe the scale grooves in the through groove to determine the distance that the adjusting rod 341 moves towards the center axis of the mounting ring 31 on the mounting ring 31, thereby ensuring the coaxiality of the mounting ring 31 and the overhead pipeline 8.

[0039] Referring to Figure 1 and Figure 3 In the embodiment, the driving member 7 comprises a connecting block 71, a moving wheel 72, an auxiliary rod 73 and a driving motor 74. An annular clearance groove is arranged on the circumferential surface of the mounting rail 3, and the clearance groove avoids the position of the adjusting rod 341 on the mounting ring 31. Specifically, the two clearance grooves on the two mounting rails 3 are located on the side where the adjusting rods 341 on the two mounting rings 31 are close to each other. The connecting block 71 is arranged in the clearance groove. The moving wheel 72 is installed in the ground of the connecting block 71, and the moving wheel 72 is rotationally connected with the connecting block 71. The circumferential surface of the moving wheel 72 abuts against the groove bottom of the clearance groove, and the ground of the connecting block 71 has a gap with the groove bottom of the clearance groove. The driving motor 74 is arranged on the connecting block 71. A transmission belt is connected between the output shaft of the driving motor 74 and the central shaft of the moving wheel 72. The driving motor 74 drives the central shaft of the moving wheel 72 and the moving wheel 72 to rotate through the synchronous belt. The auxiliary rod 73 is arranged between the mounting rod 4 and the connecting block 71. The auxiliary rod 73 is hingedly connected with the connecting block 71 and the mounting rod 4 through dampers.

[0040] When the heat shrinkable tape 2 is baked, the driving motor 74 is started to drive the moving wheel 72 to rotate, and the moving wheel 72 drives the connecting block 71 to move on the installation rail 3, so that the connecting block 71 drives the heating sheet 6 to move on the installation rail 3 through the auxiliary rod 73, the installation rod 4 and the fixing rod 5, and finally the heat shrinkable tape 2 is baked. It should be noted that the auxiliary rod 73 and the connecting block 71 are hinged by dampers, and the angle between the auxiliary rod 73 and the connecting block 71 and the angle between the auxiliary rod 73 and the installation rod 4 can be adjusted according to actual needs, so that the distance between the heating sheet 6 and the heat shrinkable tape 2 can be changed, and the baking effect of the heating sheet 6 can be changed.

[0041] The application also provides an overhead pipeline joint construction process, comprising the following steps:

[0042] Cleaning: The surface of the joint position of the overhead pipeline 8 is cleaned, and the sundries on the outer surface of the overhead pipeline 8 is removed;

[0043] Coating: The heat shrinkable tape 2 is wound at the joint position of the overhead pipeline 8;

[0044] Installation: Two installation rails 3 are respectively installed on both sides of the heat shrinkable tape 2, and the adjusting rod 341 is rotated to make the abutting piece 33 abut against the overhead pipeline 8, and at this time, it is necessary to ensure that the installation rail 3 is coaxial with the overhead pipeline 8;

[0045] Fine adjustment: The heating sheet 6 is installed on the fixing rod 5, and the angles between the auxiliary rod 73 and the installation rod 4 and the auxiliary rod 73 and the connecting block 71 are adjusted to adjust the distance between the heating sheet 6 and the heat shrinkable tape 2;

[0046] Baking: The driving motor 74 is started to drive the driving wheel to rotate, and the driving wheel drives the connecting block 71 to rotate on the installation ring 31, and the heating sheet 6 bakes the heat shrinkable tape 2.

[0047] The specific embodiment is only an explanation of the application, and is not a limitation of the application. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the application, they are protected by the patent law.

Claims

1. An overhead pipe joint device comprising a heating assembly (1), characterized in that: The heating assembly (1) comprises two mounting rails (3) capable of being sleeved on the overhead pipeline (8), the two mounting rails (3) are located on the two sides of the joint position of the overhead pipeline (8) respectively, a mounting rod (4) is arranged between the two mounting rails (3), the mounting rod (4) is provided with a heating sheet (6) for heating, and the mounting rail (3) is provided with a driving piece (7) for driving the mounting rod (4) to move on the mounting rail (3) along the circumference of the overhead pipeline (8); the mounting rail (3) comprises two semi-ring mounting rings (31), a connecting piece (32) is arranged between the two mounting rings (31), a plurality of abutting pieces (33) are arranged on the inner side of each mounting ring (31), and an adjusting piece (34) for driving the abutting piece (33) to reciprocate along the radial direction of the mounting ring (31) is arranged on the mounting ring (31); the adjusting piece (34) comprises an adjusting rod (341) extending along the radial direction of the mounting ring (31), the adjusting rod (341) penetrates through the mounting ring (31) and is threadedly connected with the mounting ring (31), and one end of the adjusting rod (341) close to the abutting piece (33) is rotationally connected with the abutting piece (33); the driving piece (7) comprises a connecting block (71) embedded in the inner surface of the outer surface of the mounting rail (3) and connected with the mounting rod (4), the connecting blocks (71) are close to each other on the two mounting rails (3), a ring-shaped accommodation groove is formed in the outer surface of the mounting rail (3) and used for the movement of the connecting block (71), a moving wheel (72) abutting against the groove bottom of the accommodation groove is arranged on the connecting block (71), and a driving motor (74) for driving the moving wheel to rotate on the connecting block (71) is arranged on the mounting rail (3); a auxiliary rod (73) is arranged between the connecting block (71) and the mounting rod (4), and the auxiliary rod (73) is hingedly connected with the connecting block (71) and the mounting rod (4) through dampers; the mounting rod (4) is provided with two, the two mounting rods (4) correspond to the two mounting rails (3) one by one, and the ends of the two mounting rods (4) close to each other are provided with U-shaped fixing rods (5), the openings of the two fixing rods (5) face the side close to each other, and mounting grooves (51) for the heating sheet (6) to enter are formed in the end faces of the two fixing rods (5) close to each other.

2. An aerial conduit joint device according to claim 1, characterized in that: A through groove is formed in the outer surface of the adjusting rod (341) along the length direction of the adjusting rod (341), and a scale groove for determining the movement distance of the adjusting rod (341) is formed in the through groove.

3. An aerial conduit joint device according to claim 1, characterized in that: The connecting piece (32) comprises a connecting rod (321) fixed to one end of the mounting ring (31), the connecting rod (321) extends away from the mounting ring (31), a tenon (322) is arranged at the end of the connecting rod (321) away from the mounting ring (31), a connecting hole (311) used in cooperation with the connecting rod (321) and the tenon (322) is formed in the other end face of the mounting ring (31), and a dismounting hole for separating the connecting rod (321), the tenon (322) and the connecting hole (311) is formed in one side of the connecting hole (311).

4. An overhead pipe joint construction process using the overhead pipe joint device according to any one of claims 1 to 3, characterized by: The method comprises the following steps: Cleaning: clean the surface of the joint position of the overhead pipeline (8), and remove the sundries on the outer surface of the overhead pipeline (8); Coating: winding the heat shrinkable tape (2) at the joint position of the overhead pipeline (8); Installation: installing two installation rails (3) on both sides of the heat shrinkable tape (2), rotating the adjusting rod (341) to make the abutting piece (33) abut against the overhead pipeline (8), at this time, it is necessary to ensure that the installation rail (3) is coaxial with the overhead pipeline (8); Fine adjustment: installing the heating piece (6) on the fixing rod (5), adjusting the angle between the auxiliary rod (73) and the installation rod (4) and the angle between the auxiliary rod (73) and the connecting block (71), and adjusting the distance between the heating piece (6) and the heat shrinkable tape (2); Baking: starting the driving motor (74), the driving motor (74) drives the driving wheel to rotate, the driving wheel drives the connecting block (71) to rotate on the installation ring (31), and the heating piece (6) bakes the heat shrinkable tape (2).

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