A device for aligning pipes

Abstract

The application relates to a pipeline alignment correcting device which comprises a supporting rod, a first correcting clamp mechanism and a second correcting clamp mechanism are slidably connected to the supporting rod, locking pieces are arranged between the supporting rod and the first correcting clamp mechanism and the second correcting clamp mechanism, the first correcting clamp mechanism and the second correcting clamp mechanism each comprise two correcting plate assemblies which are matched with each other, the two correcting plate assemblies each comprise a plurality of correcting plates which are rotationally connected in sequence, and hydraulic driving pieces are arranged between adjacent correcting plates to drive the change of the included angle between the adjacent correcting plates. The pipeline alignment correcting device has high working efficiency and reduces the labor intensity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline correction equipment, in particular to a pipeline alignment correction device. BACKGROUND

[0002] The statements herein are provided only to complement the background of the present application and are not necessarily indicative of the prior art.

[0003] With the development of thermal power plant technology, the complexity of its design also increases; in some corner areas, to facilitate on-site construction adjustability, the system is usually designed with small "scattered pipes" to connect with the header, to prevent the upper large tube row from being assembled, and the corner alignment deviation problem. However, due to the reasonable error in equipment processing, when the scattered pipes and the header are connected, there will be "misalignment" more or less, therefore, the construction personnel have to correct the pipe by cutting torch, wrench, hand-operated hoist and other tools; the industry convention is to use cutting torch, wrench and manual force to "straighten" the misaligned pipe; taking a 30MW thermal power unit with a 220t / h boiler as an example, the number of scattered pipes is several hundred, so the cost of tools and labor is also not small, for example, due to the position limitation, low operability and complex process, a 20cm pipe needs to be corrected for about 2 hours, and since the scattered pipe design generally has hundreds of pipes, the time cost and labor cost are very high; moreover, if the position to be processed is too deviated and the processing difficulty is greater, it will also affect the unit commissioning progress, so the current industry generally uses the method with poor economy. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a pipeline alignment correction device to improve the work efficiency of scattered pipe correction.

[0005] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0006] The embodiment of the present application provides a pipeline alignment correction device, which comprises a supporting rod, a first correction clamp mechanism and a second correction clamp mechanism are slidably connected to the supporting rod, a locking piece is arranged between the first correction clamp mechanism, the second correction clamp mechanism and the supporting rod, the first correction clamp mechanism and the second correction clamp mechanism each comprise two correction plate assemblies that cooperate with each other, each of the two correction plate assemblies comprises a plurality of correction plates that are rotationally connected in sequence, and a hydraulic drive piece is arranged between adjacent correction plates to drive the change of the included angle between the adjacent correction plates.

[0007] Optionally, the hydraulic drive piece is a hydraulic telescopic piece, one end of the hydraulic telescopic piece is hinged to the outer side surface of one of the two rotationally connected correction plates, and the other end of the hydraulic telescopic piece is hinged to the other correction plate.

[0008] Optionally, the hydraulic telescopic part is connected with the oil supply system through an oil pipe, the support rod adopts a hollow structure, one end of the oil pipe is connected with the hydraulic telescopic part, and the other end of the oil pipe is connected with the oil supply system after penetrating through the internal cavity of the support rod.

[0009] Optionally, the correction plate assembly comprises a first correction plate, a second correction plate and a third correction plate, the first correction plates of the two correction plate assemblies are arranged at a set angle, one end of the first correction plate is slidably connected with the support rod, the other end of the first correction plate is rotatably connected with one end of the second correction plate, and the other end of the second correction plate is rotatably connected with one end of the third correction plate.

[0010] Optionally, the first correction clamp mechanism and the second correction clamp mechanism are slidably connected with the support rod through a sleeve ring, the sleeve ring is provided with a fixing hole, the locking part adopts a locking bolt, the locking bolt is threadedly connected with the sleeve ring through the fixing hole, and the locking bolt can be pressed on the surface of the support rod to achieve locking and fixing of the sleeve ring and the support rod.

[0011] Optionally, in the correction plate assembly, at least one correction plate is provided with a burner, a flame injection port of the burner is arranged towards the space between the two correction plate assemblies, the burner is connected with a fuel tank through a fuel pipe assembly, and the fuel tank is fixed on the support rod through a fuel tank support.

[0012] Optionally, the fuel tank is connected with a fuel source through a fuel supply pipe.

[0013] Optionally, the support rod adopts a hollow rod, the fuel pipe assembly comprises a fuel main pipe fixed in the inside of the support rod, a top end of the fuel tank is connected with the fuel main pipe through a fuel feeding pipe, and the fuel main pipe is provided with a plurality of discharge pipes connected with the burners on the correction plates.

[0014] Optionally, a switch valve is arranged at the fuel outlet of the fuel tank.

[0015] Optionally, one end of the support rod is provided with an externally threaded rod section, and the other end of the support rod is provided with an internally threaded hole matched with the externally threaded rod section.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The pipe butt correction device has a first correction clamp mechanism and a second correction clamp mechanism, both of which comprise two correction plate assemblies arranged oppositely, the correction plate assembly comprises a plurality of correction plates connected with each other in rotation, a hydraulic drive part is arranged between adjacent correction plates to drive the relative rotation between the two adjacent correction plates, when the first correction clamp mechanism and the second correction clamp mechanism correspond to the butt positions of the two ends of the pipe to be corrected respectively, the two correction clamp mechanisms can be bent and contracted through the hydraulic drive part, so that the pipe can be corrected without manpower and a plurality of tools, the use is convenient and fast, the working efficiency is improved, the labor intensity is reduced, and good economy is achieved.

[0018] 2. In the pipe alignment and straightening device of the present invention, the first straightening clamp mechanism and the second straightening clamp mechanism are slidably connected to the support rod and a locking component is provided between them. Therefore, the relative position of the two can be adjusted to meet the straightening requirements of pipes of different lengths. At the same time, since one end of the support rod is provided with an external thread rod and the other end is provided with an internal thread hole, the two support rods can be connected to meet the straightening requirements of longer pipes. Therefore, the entire straightening device has strong applicability.

[0019] 3. The pipe alignment and straightening device of the present invention is equipped with a burner, a fuel pipe assembly and a fuel pipe, which can heat the pipe to be straightened, improve the thermoplasticity of the pipe and further facilitate the straightening of the pipe. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0021] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the hydraulic drive component arrangement between the second and third straightening plates in Embodiment 1 of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection between the fuel tank and the fuel source in Embodiment 1 of the present invention;

[0024] Figure 4 This is a flowchart of the process of Embodiment 1 of the present invention;

[0025] Figure 5 This is a schematic diagram of the pipe straightening process in Embodiment 1 of the present invention;

[0026] Among them, 1. support rod, 2. collar, 3. first straightening plate, 4. second straightening plate, 5. third straightening plate, 6. hydraulic telescopic component, 7. oil pump, 8. oil tank, 9. burner, 10. fuel main pipe, 11. oil circuit, 12. feed pipe, 13. fuel tank, 14. discharge pipe, 15. fuel tank support, 16. switch valve, 17. gas pipe, 18. fuel source, 19. external threaded rod section, 20. internal threaded hole, 21. pipe. Detailed Implementation

[0027] Example 1

[0028] This embodiment provides a pipe alignment and straightening device, such as... Figures 1-3 As shown, it includes a support rod 1, which is a hollow rod. The length of the support rod 1 should be such that both ends of it extend beyond the weld joints at both ends of the pipe to be corrected during use, so as to facilitate adjustment.

[0029] The support rod 1 is slidably connected to a first straightening clamp mechanism and a second straightening clamp mechanism. The first straightening clamp mechanism and the second straightening clamp mechanism can slide along the axis of the support rod to adjust the distance between the first straightening clamp mechanism and the second straightening clamp mechanism, so that the first straightening clamp mechanism and the second straightening clamp mechanism can respectively correspond to the weld joints at both ends of the pipe.

[0030] Both the first and second straightening clamp mechanisms are equipped with locking components between themselves and the support rod for locking and fixing them to the support rod.

[0031] In this embodiment, the sliding connection and locking method between the first and second corrective clamp mechanisms and the support rod are the same. The first corrective clamp mechanism will be used as an example for explanation:

[0032] The first straightening clamp mechanism has two collars 2 at the end that connects to the support rod 1. The collars 2 are fitted around the outer circumference of the support rod 1 and are slidably connected to the support rod 1. The support rod 1 has a fixing hole, which is a threaded hole. Correspondingly, the locking component is a locking bolt. The locking bolt is threadedly connected to the collar 2 through the fixing hole. When the locking bolt is rotated, it can move along its axial direction. When the locking bolt is pressed against the outer surface of the support rod 1, the collar 2 is locked and fixed to the support rod 1 through friction, thereby realizing the locking and fixing of the first straightening clamp mechanism to the support rod 1.

[0033] The first and second corrective clip mechanisms have identical structures. The first corrective clip mechanism will be used as an example for explanation:

[0034] The first straightening clamp mechanism includes two oppositely arranged straightening plate assemblies that enclose a space for the pipe to pass through.

[0035] The two correction plate assemblies have the same structure. Taking one of the correction plate assemblies as an example, the correction plate assembly includes multiple correction plates that are rotatably connected in sequence. In this embodiment, three correction plates are provided, namely the first correction plate 3, the second correction plate 4, and the third correction plate 5.

[0036] One end of the first correction plate 3 is fixedly connected to the collar 2, and the first correction plates 3 of the two correction plate assemblies are set at a set angle so that the first correction plates of the two correction plate assemblies are distributed in a V shape.

[0037] The other end of the first corrective plate 3 is hinged to the second corrective plate 4, and the end of the second corrective plate 4 is hinged to one end of the third corrective plate 5.

[0038] The hydraulic drive is arranged between the first and second correction plates 3 and 4. In this embodiment, the hydraulic drive is a hydraulic telescopic member. The fixed part of the hydraulic telescopic member is hinged to the first correction plate 3 through a hinge plate on the outer side of the first correction plate 3. The end of the second correction plate 4 connected to the first correction plate 3 is provided with a protruding part, which is hinged to the end of the telescopic part of the hydraulic telescopic member through a hinge seat.

[0039] The hydraulic telescopic member 6 is also arranged between the second and third correction plates 4 and 5. The fixed part of the hydraulic telescopic member 6 is hinged to the second correction plate 4 through a hinge plate on the outer side of the second correction plate 4. The end of the third correction plate 5 connected to the second correction plate 4 is provided with a protruding part, which is hinged to the end of the telescopic part of the hydraulic telescopic member 6 through a hinge seat.

[0040] Through the two hydraulic telescopic members, the relative rotation between the second and first correction plates 4 and 3 and the relative rotation between the second and third correction plates 4 and 5 can be achieved, so that the bending and contraction of the two correction plate assemblies can be realized.

[0041] The hydraulic telescopic member is connected to one end of the oil circuit 11. The oil circuit 11 extends to the outside of the support rod 1 through the internal cavity of the support rod 1 and is connected to the oil supply system. The oil supply system can be any existing device, including an oil pump 7, an oil tank 8, and other devices, which will not be described in detail here.

[0042] In the correction plate assembly, at least one correction plate is provided with a burner 9. In this embodiment, the first and second correction plates 3 and 4 are provided with burners 9. The middle positions of the upper and lower edges of the first and second correction plates 3 and 4 are provided with burners 9. The flame injection port of the burner 9 faces the space between the two correction plate assemblies. The burner is connected to a fuel tank through a fuel pipe assembly.

[0043] The burner 9 adopts a conventional cutting torch injection head, which is small and light, has concentrated flame condensation, and can adjust the flame injection range.

[0044] The fuel pipe assembly includes a fuel main pipe 10, which is fixed inside the support rod 1. The fuel main pipe 10 is connected to one end of a fuel feeding pipe 12. The other end of the fuel feeding pipe 12 is connected to the top discharge port of a fuel tank 13.

[0045] The fuel main pipe 10 is also connected to a plurality of discharge pipes 14. The number of discharge pipes 14 matches the number of burners 9. One end of the discharge pipe 14 is connected to the fuel main pipe 10, and the other end is connected to the burner 9.

[0046] The fuel tank 13 is arranged on one side of the support rod 1 and is fixedly connected to the support rod 1 through a fuel tank support 15. A switch valve 16 is installed on the discharge port at the top of the fuel tank 13. The switch valve 16 is a ball valve or a butterfly valve, which is used to control the delivery of fuel.

[0047] The bottom of the fuel tank 13 is also provided with a refueling port, which is connected to the fuel source 18 through a gas pipe 17 made of flexible material, so that the fuel tank can be refueled in a timely manner.

[0048] Furthermore, the fuel source 18 is a butane gas fuel source.

[0049] In this embodiment, the air pipe 17 is made of a flexible material such as rubber or flexible plastic to ensure that the fuel tank can still be easily operated in a confined space.

[0050] The structure of the second straightening clamp mechanism and the arrangement of the burner are the same as those of the first straightening clamp mechanism, and will not be described again here.

[0051] To meet the straightening requirements of longer pipelines, one end of the support rod is provided with an externally threaded rod section 19, and the other end is provided with an internally threaded hole 20 that matches the externally threaded rod section 19.

[0052] The two pipe alignment devices can be connected through the external threaded rod segment 19 and the internal threaded hole 20, so that the two pipe alignment devices work together to meet the alignment requirements of longer pipes.

[0053] The working method of this embodiment is as follows:

[0054] like Figures 4-5 As shown, the number of pipe alignment devices used is determined according to the length of the pipe 21 to be aligned. In this embodiment, one pipe alignment device is used.

[0055] Place the pipe alignment and straightening device so that the pipe 21 to be straightened passes through the space between the first straightening clamp mechanism and the second straightening clamp mechanism.

[0056] Adjust the positions of the first and second straightening clamp mechanisms so that the position of the first straightening clamp mechanism corresponds to the upper weld of the pipe 21, and the position of the second straightening clamp mechanism corresponds to the lower weld of the pipe 21.

[0057] When the oil supply system is working, the hydraulic telescopic components are controlled to work, and the straightening plate assemblies of the first and second straightening clamping mechanisms bend and retract inward to straighten the pipeline.

[0058] When the material of pipe 21 has high hardness and cannot be straightened in a cold state, the switch valve 16 of fuel tank 13 is opened, and the burner 9 is turned on. Multiple burners 9 heat the pipe evenly in all directions. After the plasticity of the pipe increases, multiple hydraulic telescopic components are controlled to work. The first straightening clamp mechanism and the second straightening clamp mechanism bend and contract to straighten the pipe.

[0059] The correction device of the embodiment can make the two correction clamps contract through the hydraulic telescopic member, so that the pipeline 21 is corrected, without manpower and various tools, convenient and fast to use, high work efficiency, low labor intensity, and good economy.

[0060] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pipe alignment correction device, characterized by, The supporting rod is slidably connected with a first correction clamp mechanism and a second correction clamp mechanism, and a locking member is arranged between the supporting rod and the first correction clamp mechanism and the second correction clamp mechanism. The first correction clamp mechanism and the second correction clamp mechanism each include two correction plate assemblies that are connected with each other, and each correction plate assembly includes a plurality of correction plates that are connected with each other in sequence. At least one of the correction plates is provided with a burner, and a flame injection port of the burner is arranged towards a space between the two correction plate assemblies. The first correction clamp mechanism and the second correction clamp mechanism are slidably connected with the supporting rod through a sleeve ring. The supporting rod is a hollow rod.

2. A plumbing butt correction device as claimed in claim 1, wherein, The fuel pipe assembly includes a fuel main pipe that is fixed in the supporting rod, and a top end of the fuel tank is connected with the fuel main pipe through a feeding pipe.

3. A plumbing butt correction device as claimed in claim 2, wherein, The hydraulic drive member is a hydraulic telescopic member.

4. A plumbing alignment correction device as defined in claim 1, wherein, The hydraulic telescopic member is connected with an oil supply system through an oil pipe.

5. A plumbing alignment correction device as defined in claim 1, wherein, The fuel tank is connected with a fuel source through a feeding pipe.

6. A plumbing butt correction device as defined in claim 1, wherein, A switch valve is arranged at a fuel outlet of the fuel tank. One end of the supporting rod is provided with an externally threaded rod segment, and the other end of the supporting rod is provided with an internally threaded hole that matches the externally threaded rod segment.

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