Pipe well inner pipe electromagnetic adsorption hoisting equipment

Abstract

The present application relates to the technical field of building construction, in particular to a pipe electromagnetic adsorption hoisting equipment in pipe well, which comprises an electromagnetic adsorption device and a cable, the electromagnetic adsorption device comprises an electromagnetic adsorption device body, a fixed module matched with the pipe to be hoisted is sleeved on the electromagnetic adsorption device body and is adsorbed; the cable is connected with the electromagnetic adsorption device body. When the hoisting equipment of the present application hoists the pipe, according to the shape and size of the pipe to be hoisted, the fixed module matched with the inner wall of the pipe to be hoisted is sleeved on the adsorption device body, then the electromagnetic adsorption device is sent into the pipe through the cable, the electromagnetic adsorption device body generates magnetic attraction force to adsorb the fixed module, so as to adsorb the pipe made of steel, so that the electromagnetic adsorption device can fix the pipe, and the hoisting work of the pipe can be realized by winding and unwinding the cable, without making lifting lugs, which can reduce material and labor waste and reduce damage to the pipe.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to an electromagnetic adsorption hoisting device for pipes inside a manhole. Background Technology

[0002] In construction projects, pipe hoisting inside pipe wells often involves welding lifting lugs to the inner wall of the pipe and using a winch cable hook for hoisting. This method has the following disadvantages: 1) Welding lifting lugs can damage the inner wall structure of the pipe, increasing the risk of leakage; 2) The lifting lugs are not easy to remove after hoisting, increasing the fluid resistance of the pipe; 3) It is only suitable for steel pipes with no coating on the inner wall; 4) The fabrication of lifting lugs requires processes such as cutting, punching, and welding, and the materials cannot be recycled after use, wasting labor and materials. Summary of the Invention

[0003] The purpose of this invention is to provide an electromagnetic adsorption hoisting device for pipelines inside a well, which can effectively solve a series of problems caused by the installation of lifting lugs on the inner wall of the pipeline during the pipeline hoisting process, and can also realize the hoisting of various types and diameters of pipelines.

[0004] To achieve the above objectives, the technical solution of the present invention is an electromagnetic adsorption hoisting device for pipelines inside a well, comprising an electromagnetic adsorption device and a cable. The electromagnetic adsorption device includes an electromagnetic adsorption device body, on which a fixing module matching the pipeline to be hoisted is sleeved and adsorbed. The cable is connected to the electromagnetic adsorption device body.

[0005] As one implementation method, the fixing module includes several sets of blocks, and the several sets of blocks are arranged in a ring-shaped interval or continuously along the circumference of the electromagnetic adsorption device body.

[0006] As one implementation method, each of the aforementioned modules includes several layers of sub-modules stacked sequentially.

[0007] As one implementation method, the sub-blocks of adjacent layers of the fixed module are arranged in an alternating or non-alternating manner.

[0008] As one implementation method, the sleeve is made of magnetically conductive material.

[0009] As one embodiment, the bottom of the electromagnetic adsorption device body is fixed with a base support, and the sleeve block is disposed on the base support.

[0010] As one embodiment, the electromagnetic adsorption device body is connected to a power source via a cable, and the cable follows the same path as the rope.

[0011] As one embodiment, a hook is provided at the center of the top surface of the electromagnetic adsorption device body, and the cable is connected to the hook.

[0012] As one implementation method, the cable passes around the pulley block and is connected to the traction device. The pulley block is installed on the top plate of the well, and the traction device is installed on the bottom plate of the top layer of the well.

[0013] As one implementation method, the traction device is a winch or manual traction.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) When the pipeline electromagnetic adsorption hoisting equipment of the present invention is used to hoist the pipeline, the electromagnetic adsorption device body is energized to generate magnetic attraction to attract the fixed module, thereby attracting the pipeline and realizing the pipeline hoisting work. It can avoid installing lifting lugs on the inner wall of the pipeline, eliminating the need to make lifting lugs, reducing material and labor waste. The hoisting equipment is suitable for different types of pipelines, including seamless steel pipes, welded steel pipes, plastic-lined steel pipes, internally coated plastic steel pipes and other steel pipes. When hoisting, the equipment is located inside the pipeline, which can be used for pipeline installation in the form of pre-reserved casing or pre-reserved opening in the well, and has strong construction applicability.

[0016] (2) The thickness of the fixing module of the present invention can be adjusted, which is suitable for the hoisting of pipes of different diameters. No on-site construction is required. It can be used immediately, which is convenient and quick. Moreover, it can be used for a long time after a one-time investment, thus reducing construction costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the electromagnetic adsorption hoisting equipment for pipelines inside a well, provided in an embodiment of the present invention.

[0019] Figure 2 A front view of the electromagnetic adsorption device provided in an embodiment of the present invention;

[0020] Figure 3 A top view of the electromagnetic adsorption device provided in an embodiment of the present invention;

[0021] In the diagram: 1. Electromagnetic adsorption device body; 2. Base support; 3. Fixing module; 4. Sleeve block; 5. Sub-sleeve block; 6. Cable; 7. Hook; 8. Pulley block; 9. Winch; 10. Cable; 11. Pipeline; 12. Well; 13. Top plate; 14. Top floor plate. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] like Figures 1-3 As shown, this embodiment provides an electromagnetic adsorption hoisting device for a pipe 11 inside a manhole 12, including an electromagnetic adsorption device and a cable 6. The electromagnetic adsorption device includes an electromagnetic adsorption device body 1, on which a fixing module 3 matching the pipe 11 to be hoisted is fitted and adsorbed; the cable 6 is connected to the electromagnetic adsorption device body 1. When hoisting the pipe 11 using the hoisting device of this embodiment, according to the shape and size of the pipe 11 to be hoisted, a fixing module 3 matching the pipe 11 to be hoisted is fitted on the adsorption device body. Then, the electromagnetic adsorption device is sent into the pipe 11 by the cable 6. The electromagnetic adsorption device body 1 is energized to generate a sufficiently large magnetic attraction force, which can attract the magnetically conductive fixing module 3 and the steel pipe 11, so that the electromagnetic adsorption device can fix the pipe 11. The hoisting work of the pipe 11 can be achieved by winding and unwinding the cable 6, without the need to make lifting lugs, which can reduce material and labor waste and reduce damage to the pipe 11.

[0026] In an optimized embodiment, the fixing module 3 includes several sleeve blocks 4 arranged circumferentially along the body 1 of the electromagnetic adsorption device. The sleeve blocks 4 have the same thickness but can have the same or different lengths. In one implementation, the sleeve blocks 4 are arranged in a ring-shaped interval and symmetrically to ensure stable adsorption of the pipe 11 during hoisting operations. In another implementation, the sleeve blocks 4 are arranged continuously in a ring to form a ring-shaped fixing module 3. Further optimized, each sleeve block 4 includes several layers of sub-sleeve blocks 5 sequentially stacked on the outer wall of the electromagnetic adsorption device body 1. The thickness of the sub-sleeve blocks 5 in corresponding layers of all sleeve blocks 4 is consistent to ensure uniform thickness of all sleeve blocks 4. In this embodiment, the thickness of each layer of sub-sleeve blocks 5 in the sleeve block 4 is exactly the same, not exactly the same, or completely different. According to the size of the pipe 11 to be hoisted, sub-sleeve blocks 5 of appropriate thickness are selected and stacked to form a sleeve block 4 of appropriate thickness. When the electromagnetic adsorption device is inside the pipe 11, the outer wall of the sleeve block 4 contacts the inner wall of the pipe 11. The magnetic attraction force generated after the electromagnetic adsorption device body 1 is energized can better attract the pipe 11. Therefore, the hoisting equipment in this embodiment can be used to hoist pipes 11 of different diameters and can be used for a long time.

[0027] In this embodiment, the shapes of the electromagnetic adsorption device body 1 and the fixing module 3 are consistent with the shape of the pipe 11. When the pipe 11 to be hoisted is circular, the cross-section of the electromagnetic adsorption device body 1 is circular, and the cross-section of the fixing module 3 is annular. Optimally, the sub-blocks 5 of adjacent layers of the fixing module 3 are arranged in an alternating or non-alternating manner. The sub-blocks 5 are made of magnetically conductive material, which can be iron or an iron alloy. After the electromagnetic adsorption device body 1 is energized, all the sub-blocks 5 and the pipe 11 can be tightly adsorbed onto the electromagnetic adsorption device body 1, forming a whole.

[0028] Before and after the electromagnetic adsorption device body 1 is powered on, in order to allow the fixing module 3 to move together with the electromagnetic adsorption device body 1, this embodiment has a base support 2 fixed at the bottom of the electromagnetic adsorption device body 1. All the sleeve blocks 4 are set on the base support 2, so that the fixing module 3 can move synchronously with the electromagnetic adsorption device body 1 and will not fall off when the power is off. Optimally, when several sleeve blocks 4 are arranged in a continuous ring, the splicing surface of adjacent sleeve blocks 4 can be flat, and a mortise and tenon structure can be used for splicing. When several sleeve blocks 4 are arranged in a ring with intervals or continuously, an arc-shaped groove can be reserved on the arc-shaped outer wall of each sub-sleeve block 5. The arc-shaped grooves on each sub-sleeve block 5 in the same layer correspond one-to-one. By installing annular connectors in the arc-shaped grooves, the integrity of each sub-sleeve block 5 in the same layer can be improved.

[0029] In this embodiment, the electromagnetic adsorption device body 1 can be a conventional electromagnetic adsorption device in the art, capable of generating sufficiently large magnetic attraction to meet the hoisting conditions of the pipe 11. As one implementation, the electromagnetic adsorption device body 1 includes an iron core, a coil wound around the iron core, an adsorption plate, and a shell. The magnetically conductive adsorption plate is annular, with its top and bottom surfaces closed by the shell. The iron core and coil are positioned within the formed space. A fixing module 3 is fitted around the outside of the adsorption plate. The coil is connected to a power source via a cable 10, with the cable 10 following the same path as the rope 6. The operator can control the power supply to energize or de-energize the coil via the control terminal of the electromagnetic adsorption device body 1.

[0030] Ideally, a hook 7 is provided at the center of the top surface of the electromagnetic adsorption device body 1, and the cable 6 is connected to the hook 7 so as to facilitate the connection between the cable 6 and the electromagnetic adsorption device body 1.

[0031] Ideally, cable 6 is routed around pulley block 8 and connected to the traction device. Pulley block 8 is mounted on the top plate 13 of manhole 12, and the traction device is mounted on the top floor plate 14 of manhole 12. Specifically, the traction device is a winch 9 or manual traction. When the weight of the pipe 11 to be hoisted is relatively small, manual traction can be used to control the descent position. When the weight of the pipe 11 to be hoisted is relatively large, a winch 9 can be used for traction, which is more convenient and safer.

[0032] The working principle of the hoisting equipment in this embodiment is as follows: Based on the specifications of the pipe 11 to be hoisted, select appropriately thick sub-sleeves 5 to form several sleeves 4 of the same thickness around the electromagnetic adsorption device body 1. During hoisting, place the electromagnetic adsorption device inside the pipe 11 to be hoisted, energize the electromagnetic adsorption device body 1, and the electromagnetic adsorption device body 1 will generate a sufficiently large magnetic attraction force to attract the sleeves 4 and the pipe 11, forming a whole with the electromagnetic adsorption device body 1. Connect the cable 6 to the hook 7 on the hydraulic support device, and use the winch 9 to slowly hoist the pipe 11 to the designated position. After the pipe 11 is hoisted, de-energize the electromagnetic adsorption device body 1, the electromagnetic adsorption device separates from the pipe 11, and the electromagnetic adsorption device is removed. The pipe 11 can be hoisted from the top layer downwards or sequentially upwards from the bottom layer. During the hoisting process, workers can observe from above and should immediately stop the operation if any abnormalities are found. In this embodiment, the electromagnetic adsorption device is located inside the pipe 11 during hoisting. It is applicable to the installation of pipe 11 with a reserved casing or reserved opening in the manhole 12. It has strong construction applicability, and it can be used for a long time after a one-time investment. It is suitable for unified procurement. At the same time, the hoisting cycle of the manhole 12 is short, and multiple projects can share a set of devices for turnover, reducing construction costs.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipe electromagnetic adsorption hoisting device in a pipe well, characterized in that: The electromagnetic adsorption device comprises an electromagnetic adsorption device body, a fixing module matched with a pipeline to be hoisted is sleeved and adsorbed on the electromagnetic adsorption device body; the cable is connected with the electromagnetic adsorption device body; the fixing module is a magnetically conductive fixing module, and the pipeline to be hoisted is a pipeline made of steel; the fixing module comprises a plurality of sleeve blocks which are arranged in a ring shape along the circumference of the electromagnetic adsorption device body at intervals or continuously; each sleeve block comprises a plurality of layers of sub-sleeve blocks which are arranged in sequence; a bottom support is fixed to the bottom of the electromagnetic adsorption device body, and the sleeve blocks are arranged on the bottom support.

2. The electromagnetic hoisting device for inner pipe of tube well according to claim 1, characterized in that: The sub-sleeve blocks of adjacent layers of the fixing module are arranged in an interlaced or non-interlaced manner.

3. The electromagnetic adsorption hoisting equipment for pipelines inside a well as described in claim 1, characterized in that: The sleeve blocks are made of a magnetically conductive material.

4. The electromagnetic hoisting device according to claim 1, wherein: The electromagnetic adsorption device body is connected with a power source through a cable, and the cable has the same path as the cable.

5. The electromagnetic adsorption hoisting equipment for pipelines inside a well as described in claim 1, characterized in that: A lifting hook is arranged at the center of the top surface of the electromagnetic adsorption device body, and the cable is connected with the lifting hook.

6. The electromagnetic hoisting device according to claim 1, wherein: The cable is connected with a traction device after passing through a pulley block, the pulley block is arranged on the top plate of a pipe well, and the traction device is arranged on the top floor bottom plate of the pipe well.

7. The electromagnetic adsorption hoisting equipment for pipelines inside a well as described in claim 6, characterized in that: The traction device is a winch or a manual traction device.

Images