Portable pipeline external aligning device

Abstract

The utility model relates to the field of pipeline connection auxiliary equipment, in particular to a portable pipeline external aligning device which comprises a diameter limiting top plate, two connecting through holes are formed in one side of the diameter limiting top plate, and limiting through grooves are formed in the positions, corresponding to the connecting through holes, of the other side of the diameter limiting top plate respectively. The connecting through holes are connected with the corresponding limiting through grooves through connecting locking devices. The connecting and locking device comprises a locking chain, a high-strength lead screw is fixedly connected to one end of the locking chain, the high-strength lead screw penetrates through the connecting through hole from the bottom face of the diameter limiting top plate and then is connected with a locking nut, the locking nut is arranged on the top face of the diameter limiting top plate, and the outer diameter of the locking nut is larger than the diameter of the connecting through hole. The locking chain is connected with the limiting through groove through a limiting structure; compared with a traditional construction method, the device is simple in structure, light and practical, high in construction efficiency and capable of saving engineering cost.

Description

Technical Field

[0001] The utility model relates to the field of pipeline connection auxiliary equipment, in particular to a portable pipeline external joint device. Background Art

[0002] The crane cannot be used for the construction of multi-layer pipe gallery. Basically, the assembly work after pipe laying relies on the chain to drag the pipe and the homemade clamp to spot weld and adjust the pipe mouth. For medium and high alloy steel materials with cold crack tendency, spot welding is prohibited on the surface of the parent material, which further reduces the efficiency of pipe assembly. In addition, there are factors such as serious waste of means and materials, excessive personnel investment, high skill level requirements for pipe workers, and time-consuming and labor-intensive movement of the chain. Compared with the pipeline construction within the device, the human resources investment in the pipeline gallery construction is large and the cost of construction materials and machinery is high. Utility Model Content

[0003] The utility model aims to provide a portable pipe external aligner which has a simple structure, is light and easy to carry, easy to operate, has high pipe mouth aligning efficiency, improves construction efficiency, reduces skill requirements for operators, and saves project costs.

[0004] The utility model discloses a portable external pipe joint device, comprising a diameter limiting top plate, two connecting through holes are arranged on one side of the diameter limiting top plate, and a limiting through groove is arranged at the position corresponding to the connecting through hole on the other side of the diameter limiting top plate;

[0005] The connecting through hole is connected to the corresponding limiting through slot via a connecting locking device;

[0006] The connection locking device comprises a locking chain, one end of which is fixedly connected to a high-strength screw rod, which passes through a connecting through hole from the bottom surface of the diameter-limiting top plate and is connected to a locking nut, the locking nut is arranged on the top surface of the diameter-limiting top plate, and the outer diameter of the locking nut is larger than the diameter of the connecting through hole, and the locking chain is connected to the limiting through groove through a limiting structure;

[0007] Two rounding top plates are also arranged on the bottom surface of the diameter limiting top plate, the two rounding top plates are arranged in parallel and symmetrically, one side of the rounding top plate is fixedly connected to the bottom surface of the diameter limiting top plate, and the rounding top plates are perpendicular to the limiting top plate;

[0008] The rounding top plates are all arranged on the diameter limiting top plates between the correspondingly arranged connecting through holes and the limiting through grooves.

[0009] Preferably, a misalignment adjustment device for adjusting the misalignment amount of the pipeline is also provided on one end of the diameter limiting top plate.

[0010] Preferably, the misalignment adjustment device comprises a threaded through hole and an adjusting screw arranged on the diameter limiting top plate, wherein the adjusting screw is threadedly connected to the threaded through hole, and one end of the adjusting screw extends out from the bottom surface of the diameter limiting top plate.

[0011] Preferably, the threaded through hole is arranged on the diameter-limiting top plate between the two rounding top plates, and the threaded through hole is equidistant from the two rounding top plates.

[0012] Preferably, one end of the adjusting screw located on the top surface of the diameter limiting top plate is fixedly connected to an adjusting wrench.

[0013] Preferably, a locking wrench is hinged on the locking nut.

[0014] Preferably, the locking wrench comprises a U-shaped connector, the locking nut is arranged in the U-shaped connector, and the locking nut is hinged to the U-shaped connector through two pins symmetrically arranged on the circumference of the locking nut;

[0015] A locking rod is fixedly connected to one end of the U-shaped connector away from the locking nut.

[0016] Preferably, the limiting structure comprises a limiting column and a limiting groove, and limiting columns are arranged on both sides of each link of the locking chain, a diameter limiting top plate extends from one side of the limiting through groove, and the limiting groove is arranged on the top surface of the diameter limiting top plate, and two limiting grooves are arranged and symmetrically arranged on both sides of the limiting through groove, and both limiting grooves are connected to the limiting through groove;

[0017] The thickness of the diameter limiting top plate is less than the distance between the upper limit posts of adjacent chain links;

[0018] When the locking chain is in the limiting through groove, the two limiting posts on the same chain link are respectively located in the two limiting grooves.

[0019] Preferably, a pipe distance adjustment device for adjusting the distance between pipe openings is also provided on one end of the diameter limiting top plate where the misalignment adjustment device is provided.

[0020] Preferably, the pipe spacing adjustment device includes a connecting ring fixedly arranged on the diameter limiting top plate, a tensioner is connected to the connecting ring, the tensioner includes a screw rod connecting end and a hook end, a tensioning operating handle is arranged between the screw rod connecting end and the hook end, and the screw rod connecting end is fixedly connected to the connecting ring.

[0021] Compared with the prior art, the advantages of the utility model are as follows:

[0022] 1) The structure is simple, light and practical. Compared with traditional construction methods, the construction efficiency is high and the engineering cost is saved;

[0023] 2) Easy to operate, high quality of nozzle assembly;

[0024] 3) Simple production, easy to obtain raw materials, saving materials, and low cost of the mouthpiece;

[0025] 4) The skill level requirements for construction workers are reduced;

[0026] 5) Compared with traditional aligners, this aligner can be used for high-altitude operations and narrow terrain;

[0027] 6) Compared with traditional aligners, this aligner has one specification and can be adjusted according to the chain length. It is suitable for applications with various pipe diameters and has the function of adjusting the pipe mouth distance.

[0028] 7) Compared with traditional pipe aligners, this pipe aligner can be used for various pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the utility model.

[0030] Figure 2 for Figure 1 Right view of .

[0031] Figure 3 for Figure 1 Top view of the .

[0032] Figure numerals: 1-locking chain, 2-locking wrench, 3-tensioner, 4-adjusting screw, 5-rounding top plate, 6-diameter limiting top plate, 7-limiting through groove. DETAILED DESCRIPTION

[0033] The utility model discloses a portable external pipe joint device, comprising a diameter limiting top plate 6, two connecting through holes are arranged on one side of the diameter limiting top plate 6, and a limiting through groove 7 is arranged on the other side of the diameter limiting top plate 6 at positions corresponding to the connecting through holes;

[0034] The connecting through hole is connected to the corresponding limiting through slot 7 via a connecting locking device;

[0035] The connection locking device comprises a locking chain 1, one end of which is fixedly connected to a high-strength screw rod, which passes through a connecting through hole from the bottom surface of a diameter-limiting top plate 6 and is connected to a locking nut, the locking nut being arranged on the top surface of the diameter-limiting top plate 6, and the outer diameter of the locking nut being larger than the diameter of the connecting through hole, and the locking chain 1 is connected to a limiting through groove 7 through a limiting structure;

[0036] Two rounding top plates 5 are also arranged on the bottom surface of the diameter limiting top plate 6. The two rounding top plates 5 are arranged in parallel and symmetrically. One side of the rounding top plate 5 is fixedly connected to the bottom surface of the diameter limiting top plate 6. The rounding top plates 5 are perpendicular to the limiting top plate.

[0037] The rounding top plates 5 are all arranged on the diameter limiting top plates 6 between the corresponding connecting through holes and the limiting through grooves 7 .

[0038] A misalignment adjustment device for adjusting the misalignment of the pipeline is also provided on one end of the diameter limiting top plate 6 .

[0039] The misalignment adjustment device comprises a threaded through hole and an adjusting screw 4 arranged on the diameter limiting top plate 6 . The adjusting screw 4 is threadedly connected to the threaded through hole, and one end of the adjusting screw 4 extends out from the bottom surface of the diameter limiting top plate 6 .

[0040] The threaded through hole is arranged on the diameter limiting top plate 6 between the two rounding top plates 5 , and the threaded through hole is equidistant from the two rounding top plates 5 .

[0041] One end of the adjusting screw rod 4 located on the top surface of the diameter limiting top plate 6 is fixedly connected with an adjusting wrench.

[0042] A locking wrench 2 is hinged on the locking nut.

[0043] The locking wrench 2 comprises a U-shaped connector, the locking nut is arranged in the U-shaped connector, and the locking nut is hinged to the U-shaped connector through two pins symmetrically arranged on the circumference of the locking nut;

[0044] A locking rod is fixedly connected to one end of the U-shaped connector away from the locking nut.

[0045] The limiting structure includes a limiting column and a limiting groove. Limiting columns are arranged on both sides of each link of the locking chain 1. A diameter limiting top plate 6 extends from one side of the limiting through groove 7. The limiting groove is arranged on the top surface of the diameter limiting top plate 6. Two limiting grooves are arranged and symmetrically arranged on both sides of the limiting through groove 7. Both limiting grooves are connected to the limiting through groove 7.

[0046] The thickness of the diameter limiting top plate 6 is less than the distance between the upper limit posts of adjacent chain links;

[0047] When the locking chain 1 is in the limiting through groove 7, the two limiting posts on the same chain link are respectively located in the two limiting grooves.

[0048] One end of the diameter limiting top plate 6 where the misalignment adjustment device is arranged is also provided with a pipe distance adjustment device for adjusting the distance between the pipe openings.

[0049] The pipe spacing adjustment device includes a connecting ring fixedly arranged on the diameter limiting top plate 6, and a tensioner 3 is connected to the connecting ring. The tensioner 3 includes a screw connecting end and a hook end, and a tensioning operating handle is arranged between the screw connecting end and the hook end. The screw connecting end is fixedly connected to the connecting ring.

[0050] The two rounding top plates 5 are fixedly connected via a stiffening plate, and the stiffening plate is located in the middle of the rounding top plates 5 .

[0051] The working principle of the utility model is as follows: the utility model is placed flat on the upper or lower part of the pipeline, so that the 4mm stiffened plate in the rounding top plate 5 is close to the groove at the end of the pipeline, which is conducive to adjusting the reserved gap of the weld joint group. The locking chain 1 is used to surround the pipeline for one circle and then clip into the corresponding limiting groove 7 on the other side of the diameter limiting top plate 6. The limiting column is matched and set in the limiting groove. The locking wrench 2 is turned to make the locking chain 1 lock the pipeline.

[0052] Tie a sling or wire rope on the other pipe and connect it to the hook end of the tensioner 3. Use another locking chain 1 to wrap around the pipe again, tighten the chain and leave a tightening margin. Contract the tensioner 3 to squeeze the two pipe bevels toward the reinforcing plate in the middle of the rounding top plate 5. This ensures the weld gap. The amount of misalignment of the pipe is adjusted by the adjusting screw 4 on the diameter limiting top plate 6. If the weld gap is uneven, you can adjust the tightening operating handle of the tensioner 3, loosen the chain, tighten the tightening operating handle to adjust the weld gap, and tighten the pipe again with the locking wrench 2. After measuring and checking that the parameters such as the gap and misalignment of the pipe mouth group meet the requirements, start symmetrical spot welding and fixation. After completion, remove the matchmaker and start the whole mouth welding.

[0053] The difference between this utility model and traditional technology and the benefits it generates:

[0054] 1) Compared with traditional construction methods, it saves engineering costs

[0055] This utility model is suitable for various materials, pipe fittings and terrain environments, and is convenient for actual on-site operation, especially multi-layer pipe corridors, underground pipe networks and long-distance pipelines. Because the whole set of equipment is made of channel steel, steel plates and chains, it is light in weight, with a total weight of 6.28kg. The overall construction method is much lighter than the traditional construction method, and one person can take it and put it freely and move it back and forth. In the traditional construction method, at least 3 or more chain hoists are installed, dismantled, transported, fixtures welded and polished on the pipe corridor. In the installation project of the synthetic ammonia plant No. 2 of Hulunbuir Northeast Fufeng Biotechnology Co., Ltd., there are three layers of external pipe corridors in the plant. The top layer is greater than or equal to DN600 pipelines and is assembled by crane. The remaining pipes with a diameter of DN150-DN500 are constructed with portable matching devices. The period is from September 1, 2023 to September 23, 2023, a total of 23 days. According to statistical data: during the period, 299 DN150 welds were completed; 967 DN200 welds; 1081 DN250 welds; 1161 DN300 welds; 1023 DN350 welds; 28 DN400 welds; 351 DN500 welds; a total of 4910 welds were completed.

[0056] There are a total of 12 construction teams for the external pipes of the whole plant. According to the traditional construction method, each team is equipped with 3 fall chains, each team is equipped with 1 welder for spot welding, 1 general worker to cooperate with the teaming work, and 1 pipe worker to direct and arrange the work and teaming; the construction period of the portable jointing device is from September 1, 2023 to September 23, 2023, a total of 23 days; the use of portable jointing devices for the external pipes of the whole plant during the construction period saves the following costs:

[0057] The monthly rent for the reverse chain is 62 yuan / month, a total of 3 (lines / shift) * 12 (shift) * 1 (month) * 62 (yuan / month) = 2232 yuan;

[0058] When the portable pipe external butt jointer was not used in the early pipeline corridor, the average number of welds per day for all employees was 146. When the portable pipe external butt jointer was used, the average number of welds per day for all employees was 213.5. According to the calculation of a total of 4,910 welds, it took 34 days for 12 teams to complete the traditional pipeline corridor construction, and 23 days to complete it after the new application. The construction period was advanced by 11 days. There were 12 teams in the traditional pipeline corridor construction, and each team had 1 general worker at 300 yuan / man-day; 1 welder at 590 yuan / man-day; and 570 yuan / man-day. Each team needed 1,460 yuan / team for one man-day. Total cost savings: 12 (teams) * 1,460 yuan / team * 11 (man-days) = 192,720 yuan.

[0059] 2) Easy to operate, high efficiency and high quality of nozzle assembly

[0060] In order to adjust the gap and misalignment of the traditional pipe assembly, it is necessary to make fixtures and rely on the skills of pipe workers to improve efficiency. The difficulty level varies due to the different lengths, wall thicknesses, and specifications of the corridor pipes. In addition, in high-altitude operations, the operating space for multi-layer corridor pipeline construction is limited and the efficiency is low. In addition, the fixtures and auxiliary means used at temporary points are polished and restored to their original state after the assembly work is completed, which wastes human resources and auxiliary materials again. After the application of the utility model, all pipe diameters within the range of the locking chain 1 can be used, and the requirements for the skill level of the pipe workers are reduced. There is no need to use a large number of tools, means, and materials, and the weld assembly work can be completed with high quality. After the adapter is removed, there are no spot welding scars on the pipeline surface and the corridor structure. There is less movement in high-altitude operations, and construction is concentrated.

[0061] 3) Simple production, easy to obtain raw materials, low cost of mouthpiece

[0062] The utility model has a simple structure and only needs to purchase one tensioner 3 and two locking chains 1. The remaining materials can be made of waste or scraps. The production technology requirements are low, it is easy to make it on site, the cost is low, and it is light after molding. The cost including labor costs is 230 yuan / piece, and the total cost is 230 yuan / piece*12=2760 yuan. In addition, the utility model is easy to correct slight deformation when used, easy to repair, and the cost of replacement is low.

[0063] 4) Have good social benefits

[0064] The utility model not only improves the construction efficiency, meets the requirements of construction progress and quality, but also overcomes the various shortcomings of traditional docking devices for high-altitude operations. Compared with traditional docking devices, most of them are used in long-distance pipelines and underground pipe networks, and the rest are suitable for ground prefabrication. For high-altitude operations and small assembly sites, the existing docking devices basically have no application conditions. This portable external pipe docking device provides more selection tools for high-altitude operations and limited sites. It also avoids the subjective factors that affect the construction efficiency due to the skill level of the pipe worker himself. At the same time, it brings major changes in progress, quality, efficiency and cost savings to the assembly of multi-layer pipe corridors.

Claims

1. A portable pipe external joint device, comprising a diameter limiting top plate, characterized in that: Two connecting through holes are arranged on one side of the diameter limiting top plate, and a limiting through groove is arranged on the other side of the diameter limiting top plate at positions corresponding to the connecting through holes; The connecting through hole is connected to the corresponding limiting through slot via a connecting locking device; The connection locking device comprises a locking chain, one end of which is fixedly connected to a high-strength screw rod, which passes through a connecting through hole from the bottom surface of the diameter-limiting top plate and is connected to a locking nut, the locking nut is arranged on the top surface of the diameter-limiting top plate, and the outer diameter of the locking nut is larger than the diameter of the connecting through hole, and the locking chain is connected to the limiting through groove through a limiting structure; Two rounding top plates are also arranged on the bottom surface of the diameter limiting top plate, the two rounding top plates are arranged in parallel and symmetrically, one side of the rounding top plate is fixedly connected to the bottom surface of the diameter limiting top plate, and the rounding top plates are perpendicular to the limiting top plate; The rounding top plates are all arranged on the diameter limiting top plates between the correspondingly arranged connecting through holes and the limiting through grooves.

2. A portable external pipe joint device as claimed in claim 1, characterized in that: A misalignment adjustment device for adjusting the misalignment of the pipeline is also arranged on one end of the diameter limiting top plate.

3. A portable external pipe joint device as claimed in claim 2, characterized in that: The misalignment adjustment device comprises a threaded through hole and an adjusting screw arranged on the diameter limiting top plate. The adjusting screw is threadably connected to the threaded through hole, and one end of the adjusting screw extends out from the bottom surface of the diameter limiting top plate.

4. A portable external pipe joint device as claimed in claim 3, characterized in that: The threaded through hole is arranged on the diameter limiting top plate between the two rounding top plates, and the threaded through hole is equidistant from the two rounding top plates.

5. A portable external pipe joint device as claimed in claim 4, characterized in that: One end of the adjusting screw rod located on the top surface of the diameter limiting top plate is fixedly connected with an adjusting wrench.

6. A portable external pipe joint device as claimed in claim 1, characterized in that: A locking wrench is hinged on the locking nut.

7. A portable external pipe joint device as claimed in claim 6, characterized in that: The locking wrench comprises a U-shaped connector, the locking nut is arranged in the U-shaped connector, and the locking nut is hinged to the U-shaped connector via two pins symmetrically arranged on the circumference of the locking nut; A locking rod is fixedly connected to one end of the U-shaped connector away from the locking nut.

8. A portable pipe outer joint device as claimed in claim 1, characterized in that: The limiting structure includes a limiting column and a limiting groove. The limiting columns are arranged on both sides of each link of the locking chain. A diameter limiting top plate extends from one side of the limiting through groove. The limiting groove is arranged on the top surface of the diameter limiting top plate. Two limiting grooves are arranged and symmetrically arranged on both sides of the limiting through groove. Both limiting grooves are connected to the limiting through groove. The thickness of the diameter limiting top plate is less than the distance between the upper limit posts of adjacent chain links; When the locking chain is in the limiting through groove, the two limiting posts on the same chain link are respectively located in the two limiting grooves.

9. A portable external pipe joint device as claimed in claim 2, characterized in that: A pipe distance adjustment device for adjusting the distance between pipe openings is also arranged on one end of the diameter limiting top plate where the misalignment adjustment device is arranged.

10. A portable external pipe joint device as claimed in claim 9, characterized in that: The pipe spacing adjustment device includes a connecting ring fixedly arranged on the diameter limiting top plate, a tensioner is connected to the connecting ring, the tensioner includes a screw rod connecting end and a hook end, a tensioning operating handle is arranged between the screw rod connecting end and the hook end, and the screw rod connecting end is fixedly connected to the connecting ring.

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