Sleeve end socket reshipment and installation device

Abstract

The utility model provides a casing head reshipment installation device, which relates to the technical field of engineering installation and comprises a base, a jacking device, a pipe clamp and an inclined strut structure. The jacking device is arranged on the lower portion of the base and used for jacking the casing end socket reshipment and installation device and the casing end socket installed on the casing end socket reshipment and installation device. The pipe clamp comprises an upper half ring and a lower half ring, the lower half ring and the base are fixedly connected to the upper portion of the base, and the upper half ring is connected with the lower half ring through a connecting piece to form a whole circular ring used for hooping and fixing the casing end socket; the inclined strut structure is arranged on the upper portion of the base, located on the side face of the pipe clamp and used for supporting the pipe clamp. The sleeve sealing head can be fixed for reshipment and installation, the device is simple in structure and can be detached and reused, the horizontal position, namely X and Y coordinates, is adjusted through horizontal movement of the base, the height position, namely Z coordinates, is adjusted through the jacking device, the assembly speed is greatly increased, and the construction efficiency is improved.

Description

Sleeve end cap relocation and installation device Technical Field

[0001] This utility model relates to the field of engineering installation technology, specifically to a sleeve end cap relocation and installation device. Background Technology

[0002] During the installation of the nuclear island, the quality control of welding products is particularly strict, as the quality of welding directly affects the safe operation of the nuclear power plant. There are many factors that affect the welding quality during the installation of the nuclear island, especially for the construction of important systems, where it is necessary to overcome the influence of adverse factors. Therefore, based on the difficulties and pain points of on-site construction, a device for the reverse transportation and installation of large-diameter, thick-walled sleeve heads with a simple and practical structure was designed. Furthermore, the gap value is measured before assembly and during welding, which can greatly improve work efficiency and construction quality, and avoid rework caused by welding quality issues.

[0003] The sleeve end cap has an irregular shape, especially for large-diameter, thick-walled pipeline components, which are large in weight and volume. Due to the installation in the factory, the use of large equipment is limited by space constraints. Therefore, temporary lifting points are often used for hoisting. However, temporary lifting points are prone to shaking and flipping during hoisting, and it is impossible to adjust the three-dimensional spatial position. The spot welding efficiency is low and there are certain safety hazards, which affect the welding quality and the installation of subsequent components.

[0004] A sleeve end cap is installed on both the VVP (main steam pipeline) and ARE (main feedwater system). The sleeve end cap is shaped like a ring (as shown in Figures 1a and 1b), with outer diameters of Φ1626mm and Φ1046mm respectively, and weights of approximately 4t and 1.8t.

[0005] During installation, the casing end cap is first hoisted by a tower crane to the scaffolding transfer platform located at the hoisting port on the exterior wall of the room at the +13.20m level (the scaffolding platform is lower than the +13.2m elevation level). Then, the casing end cap is introduced into the room using a hand-operated hoist installed in advance at the hoisting port (the hand-operated hoist is hung on a pre-welded temporary lifting lug). After the component is introduced into the room, temporary lifting lugs are welded on the embedded plate on the roof of the room or temporary lifting points are erected. Chain hoists or hoisting slings are suspended on the lifting lugs or temporary lifting points to carry out a secondary transfer of the hoisted component to the installation position specified in the drawings, and then assembled and welded.

[0006] Currently, when installing pipelines and their components, it is common practice to weld temporary lifting lugs onto embedded plates or use scaffolding as temporary lifting points to hoist the sleeve end caps to a designated elevation for welding. Temporary lifting lugs are the most frequently used method due to their structural stability, high load-bearing capacity, and reliability when welded to the embedded plate. However, their use is affected by the location of the embedded plate. If there is no embedded plate at the construction site, it is necessary to clarify whether expansion bolts can be used to install the embedded plate and weld temporary lifting lugs. Furthermore, the installation of temporary lifting lugs requires manufacturing, marking the installation location, welding and fixing the temporary lifting lugs, load testing, on-site acceptance, and cutting and grinding the temporary lifting lugs, all of which inevitably consume resources and manpower. The location of temporary lifting points on scaffolding is affected by the room layout and installation location, and the load-bearing capacity is influenced by the mode and location of the load.

[0007] The sleeve caps for the VVP (main steam pipe) and ARE (main feedwater system) pipelines are annular, with outer diameters of Φ1626mm and Φ1046mm respectively, and a maximum weight of approximately 4 tons. The components are heavy and irregularly shaped, making them prone to swaying during hoisting and difficult to secure, posing a safety hazard, especially in space-constrained locations. This also complicates assembly and welding, and even minor vibrations during the process can affect the weld quality.

[0008] In view of this, the inventors of this application have designed a sleeve end cap reversing and installation device in order to overcome the above-mentioned technical problems. Summary of the Invention

[0009] The technical problem to be solved by this utility model is to overcome the problems of easy shaking and flipping during the hoisting of the temporary lifting point of the sleeve end cap, the inability to adjust the three-dimensional spatial position, low spot welding efficiency and certain safety hazards, which affect the welding quality and the installation of subsequent components. The present invention provides a sleeve end cap reversing installation device.

[0010] The present invention solves the above-mentioned technical problems through the following technical solution:

[0011] This utility model provides a casing end cap reversing and installation device, characterized in that the casing end cap reversing and installation device includes: a base, a lifting device, a pipe clamp, and a diagonal bracing structure; the lifting device is disposed at the lower part of the base and is used to lift the casing end cap reversing and installation device and the casing end cap installed thereon; the pipe clamp includes an upper half ring and a lower half ring, the lower half ring is fixedly connected to the upper part of the base, and the upper half ring is connected to the lower half ring through a connector to form a complete circular ring, used to tighten and fix the casing end cap; the diagonal bracing structure is disposed at the upper part of the base, located on the side of the pipe clamp, and is used to support the pipe clamp.

[0012] According to one or more embodiments of the present invention, the bearing plane of the base includes a bearing beam composed of H-shaped steel, the upper part of the bearing beam is covered with a steel plate, and the lower part of the bearing plane is connected to a universal wheel with brakes.

[0013] According to one or more embodiments of the present invention, a first measuring element is provided on the bearing plane of the base.

[0014] According to one or more embodiments of the present invention, the lifting device is H-shaped and includes at least four lifting units, which are arranged at the four corners of the lifting device, and the lifting device is fixedly connected to the supporting crossbeam.

[0015] According to one or more embodiments of the present invention, the lifting unit adopts a hydraulic lifting device or a trapezoidal screw lifting device.

[0016] According to one or more embodiments of the present invention, the upper and lower half rings of the pipe clamp are made of bent steel plates, and their bending radius matches that of the sleeve end cap. The connecting member connecting the upper and lower half rings is a bolt.

[0017] According to one or more embodiments of the present invention, a support member is provided at the bottom of the lower half ring for connecting with the upper part of the base; a fixing plate is provided at the upper part of the upper half ring for fixing to the diagonal brace structure.

[0018] According to one or more embodiments of the present invention, the surfaces of the support member and the fixing plate are provided with a second measuring element.

[0019] According to one or more embodiments of the present invention, the diagonal bracing structure includes a column and a diagonal brace. The column is disposed close to the side of the pipe clamp and is fixedly connected to the pipe clamp by a connector. One end of the diagonal brace is fixed to the column, and the other end of the diagonal brace is fixed to the base.

[0020] According to one or more embodiments of the present invention, a third measuring element is provided on the side of the inclined brace structure.

[0021] The positive and progressive effects of this utility model are as follows:

[0022] This utility model of sleeve end cap relocation and installation device has at least the following advantages:

[0023] It can fix and transport large-diameter, thick-walled components, and meet the requirements for position adjustment in three-dimensional space. It can also measure the assembly gap in real time, and the system will alarm when the allowable deviation is exceeded, thereby controlling the welding quality of the components. Combined with video acquisition, it can meet the requirements for image collection during construction, and provide a basis for subsequent inspection.

[0024] Compared to the previous method of using welded lifting lugs and scaffolding as lifting points, this method eliminates the need for temporary lifting lug fabrication and welding, as well as scaffolding erection. The device has a simple, detachable, and reusable structure. Combined with a visualization device, it allows for the measurement of assembly gaps and the collection of image data, reducing labor input, improving construction efficiency, and enhancing welding quality. It also significantly increases assembly speed, improves construction efficiency, shortens the overall construction period, reduces safety hazards, and saves on manpower, materials, and machinery consumption, aligning with the design philosophy of low investment and high return. Attached Figure Description

[0025] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features, wherein:

[0026] Figure 1a is a schematic diagram of the casing head of the main steam pipe (VVP) in the prior art.

[0027] Figure 1b is a schematic diagram of the casing head of the main water supply system (ARE) in the prior art.

[0028] Figure 2 is a schematic diagram of the force analysis of the base in the sleeve end cap reversing installation device of this utility model.

[0029] Figure 3 is a schematic diagram of the pipe clamp structure in the sleeve end cap reversing and installation device of this utility model.

[0030] Figure 4 is a schematic diagram of the diagonal bracing structure in the sleeve end cap reversing and installation device of this utility model.

[0031] Figure 5 is a schematic diagram of the base structure in the sleeve end cap reversing and installation device of this utility model.

[0032] Figure 6 is a structural schematic diagram of the lifting device in the sleeve end cap relocation and installation device of this utility model.

[0033] Figure 7a is a side view schematic diagram of the layout of measuring elements in the sleeve end cap reversing and installation device of this utility model.

[0034] Figure 7b is a front view schematic diagram of the layout of measuring elements in the sleeve end cap reversing and installation device of this utility model.

[0035] Figure 7c is a top view of the layout of measuring elements in the sleeve end cap reversing and installation device of this utility model.

[0036] Figure 8 is a schematic diagram of the sleeve end reversing and installation device of this utility model after the sleeve end is installed.

[0037] Figure 9 is a schematic diagram of the overall structure of the sleeve end cap reverse installation device of this utility model.

[0038] [Attached image labels]

[0039] Base 100

[0040] Bearing plane 110

[0041] Bearing beam 111

[0042] 120 swivel wheels

[0043] 130 outriggers

[0044] Lifting device 200

[0045] Lifting Unit 210

[0046] Motor 220

[0047] Steering gear 230

[0048] Pipe clamp 300

[0049] Upper half ring 310

[0050] Fixing plate 311

[0051] Lower half ring 320

[0052] Support component 321

[0053] Connector 330

[0054] Connector plate 340

[0055] Reinforcing plate 341

[0056] 400 diagonal bracing structure

[0057] Column 410

[0058] diagonal brace 420

[0059] Measuring element 500

[0060] First measuring element 510

[0061] Second measuring element 520

[0062] Third measuring element 530

[0063] 600 sleeve end cap Detailed Implementation

[0064] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0065] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Preferred embodiments of the present invention will now be described in detail, examples of which are shown in the drawings. Wherever possible, the same reference numerals will be used in all the drawings to denote the same or similar parts. Furthermore, although the terminology used in this invention is selected from commonly known and used terminology, some terms mentioned in this specification may have been chosen by the applicant at his or her judgment, and their detailed meanings are explained in the relevant sections of the description herein. Moreover, the present invention should be understood not only by the actual terms used, but also by the meaning implied by each term.

[0066] Referring to Figures 3 to 9, this utility model provides a casing end cap reversing and installation device, which includes: a base 100, a lifting device 200, a pipe clamp 300, and a diagonal bracing structure 400;

[0067] The lifting device 200 is located at the lower part of the base 100 and is used to lift the sleeve head reversing installation device and the sleeve head 600 installed thereon.

[0068] The pipe clamp 300 includes an upper half ring 310 and a lower half ring 320. The lower half ring 320 is fixedly connected to the upper part of the base 100. The upper half ring 310 is connected to the lower half ring 320 through a connector 330 to form a complete circular ring, which is used to clamp and fix the sleeve end cap 600.

[0069] The diagonal bracing structure 400 is located on the upper part of the base 100 and on the side of the pipe clamp 300 to support the pipe clamp 300.

[0070] Preferably, the lower half ring 320 of the pipe clamp 300 is welded to the steel plate of the base 100 and reinforced on both sides with channel steel; the upper half ring 310 of the pipe clamp 300 can be fastened with bolts or other fasteners after the sleeve end cap 600 is inserted. After the sleeve end cap 600 is installed and passes the non-destructive testing, the fasteners are removed and the sleeve end cap transport and installation device is removed.

[0071] Preferably, the main structure of the sleeve end cap transport and installation device of this utility model is made of profile steel and steel plate. All components of the device can be disassembled and transported to the site for assembly according to the work point.

[0072] Preferably, the sleeve end cap relocation and installation device of this utility model is equipped with a visualization device composed of measuring elements 500. The measuring elements 500 are preferably disposed on the upper surface of the base 100, the side of the inclined support structure 400, and the upper and lower parts of the pipe clamp 300. The measuring elements 500 are used to complete the assembly gap measurement and collect data and images during the assembly welding process. When the allowable deviation is exceeded, the system alarms to control the welding quality of the components.

[0073] This utility model relates to a casing head relocation and installation device, an innovative design based on past construction experience, addressing various problems encountered during the installation of casing heads 600. It is a device that allows for the fixed relocation and installation of casing heads 600. The device has a simple structure, is detachable and reusable. The horizontal position (X and Y coordinates) is adjusted by the horizontal movement of the base, and the height is adjusted by the lifting device, thus shortening the construction cycle and avoiding unnecessary rework. It can be applied to the relocation and installation of large-diameter, thick-walled casing head components.

[0074] Referring to Figure 5, as a preferred embodiment of the sleeve end cap reversing and installation device of this utility model, the bearing plane 110 of the base 100 includes a bearing beam 111 composed of H-beams, the upper part of the bearing beam 111 is covered with a steel plate, and the lower part of the bearing plane 110 is connected to a universal wheel 120 with brakes.

[0075] Preferably, the base 100 is constructed from H-beams and steel plates, and secured with bolts to form a bearing surface 110. The H-beams below the base 100 serve as support legs 130, equipped with casters 120 with brakes to facilitate the transport of pipe components and position adjustment during installation. The casters 120 on the base 100, in conjunction with the lifting device 200, allow for position adjustment in three-dimensional space.

[0076] The stress on the H-beam of base 100 can be simplified as a simply supported beam, with the maximum stress at the center point. See Figure 2 for a schematic diagram of the stress analysis. Base 100 is subjected to a downward bending moment, therefore the bending strength of the H-beam needs to be checked.

[0077] When an H-beam is used as a simply supported beam and subjected to a concentrated load at its midpoint, the resulting bending moment is the maximum bending moment M. max According to the standard GB / T 11263-2017, the section modulus W is... x According to the "Standard for Design of Steel Structures" (GB / T 50017-2017), the design value of the bending strength σ is taken as 215 MPa. The maximum bending moment M... max Section modulus W x The relationship between the bending strength σ, σ, and σ is as follows:

[0078]

[0079] The maximum bending moment M when the concentrated load is located at the center is calculated using the following formula. max :

[0080] M max =1 / 4FL

[0081] In the formula: W x It is the section modulus, in cm. 3σ is the bending strength, MPa (N / mm²). 2 F is the tensile force (N); L is the span (mm).

[0082] From the above formula, we get Using a safety factor of 2 and a dynamic load factor of 1.25, F = 2 * 1.25 mg, the load can be calculated by substituting the values.

[0083] Referring to Figure 5, as a preferred embodiment of the sleeve end cap reversing and installation device of this utility model, a first measuring element 510 is provided on the bearing plane 110 of the base 100.

[0084] It should be noted that the first measuring element 510 installed on the bearing plane 110 of the base 100 facilitates the adjustment of the Z-axis direction (height direction) of the sleeve head reversing installation device. In conjunction with the detachable universal wheels 120 with brakes and the lifting device 200 arranged at the bottom of the base 100, it is convenient to adjust the position of the sleeve head 600 when it is in place.

[0085] Referring to Figure 6, as a preferred embodiment of the sleeve end cap relocation and installation device of this utility model, the lifting device 200 is H-shaped and includes at least four lifting units 210. The four lifting units 210 are arranged at the four corners of the lifting device 200, and the lifting device 200 is fixedly connected to the bearing beam 111.

[0086] Preferably, the lifting device 200 is H-shaped, and the four lifting units 210 can be linked together and are installed at the bearing beam 111 of the base 100.

[0087] As a preferred embodiment of the sleeve end cap relocation and installation device of this utility model, the lifting unit 210 adopts a hydraulic lifting device or a trapezoidal screw lifting device.

[0088] Preferably, in the embodiment shown in Figure 6, the lifting unit 210 adopts a trapezoidal screw lifting device, the trapezoidal screw is driven by a motor 220, and the motor 220 transmits power to each lifting unit 210 through the rotating shaft and the steering gear 230 between the rotating shafts. The height can be precisely adjusted according to the elevation. The lifting can be completed quickly and efficiently through the control of the motor 220.

[0089] Referring to Figure 3, as a preferred embodiment of the casing head reversing installation device of this utility model, the upper half ring 310 and the lower half ring 320 of the pipe clamp 300 are made of steel plate bending, and their bending radius matches the casing head 600. The connecting piece 330 connecting the upper half ring 310 and the lower half ring 320 is a bolt.

[0090] Preferably, the pipe clamp 300 is made of bent steel plate and is used to fix the annular sleeve end cap 600. The appropriate pipe clamp 300 can be selected according to the size of the sleeve end cap 600.

[0091] Preferably, both the upper half ring 310 and the lower half ring 320 have outwardly extending connecting plates 340. The connecting plates 340 of the upper half ring 310 and the connecting plates 340 of the lower half ring 320 cooperate with each other and are fixedly connected by bolts or other connecting parts 330, thereby fixing the upper half ring 310 and the lower half ring 320 together. Furthermore, a reinforcing plate 341 can be provided on the connecting plate 340 to strengthen the structure at that point.

[0092] Referring to Figure 3, in a preferred embodiment of the sleeve end cap reversing and installation device of this utility model, a support member 321 is provided at the bottom of the lower half ring 320 for connecting with the upper part of the base 100; a fixing plate 311 is provided at the upper part of the upper half ring 310 for fixing to the diagonal brace structure 400.

[0093] Preferably, the pipe clamp 300 is made of bent steel plate, and its bending radius is adjusted according to the clamping components. The pipe clamp 300 is divided into upper and lower parts, namely upper half ring 310 and lower half ring 320. The upper half ring 310 is detachable, and a steel plate is welded to it as a fixing plate 311 and bolted to the channel steel of the column 410. The upper and lower parts are fastened with bolts. The lower half ring 320 is welded to the bearing plane 110 and the channel steel used to reinforce the base 100.

[0094] Referring to Figure 3, in a preferred embodiment of the sleeve end cap reversing and installation device of this utility model, the surfaces of the support member 321 and the fixing plate 311 are provided with a second measuring element 520.

[0095] Preferably, a second measuring element 520 is installed on the supporting surface of the support member 321 and the fixing plane of the fixing plate 311, respectively, for measuring the welding gap value, collecting images of the welding process, and providing an early warning function.

[0096] Referring to Figure 4, as a preferred embodiment of the sleeve end cap reversing and installation device of this utility model, the inclined support structure 400 includes a column 410 and an inclined support 420. The column 410 is closely arranged on the side of the pipe clamp 300 and is fixedly connected to the pipe clamp 300 through a connector 330. One end of the inclined support 420 is fixed to the column 410, and the other end of the inclined support 420 is fixed to the base 100.

[0097] Referring to Figure 4, as a preferred embodiment of the sleeve end cap reversing and installation device of this utility model, a third measuring element 530 is provided on the side of the inclined brace structure 400.

[0098] Preferably, the diagonal bracing structure 400 is made of channel steel welded together, connecting the pipe clamp 300 and the base 100, and can be supported and reinforced during the handling process to prevent the component from tipping over; a third measuring element 530 is installed on the side of the diagonal bracing structure 400 to assist in the adjustment of the Y-axis direction (horizontal transverse direction) of the device.

[0099] Figures 7a and 7c show the layout of the measuring elements 500 of the sleeve end cap transport and installation device of this utility model on various planes. These elements are used to measure the coordinate values ​​of the sleeve end cap transport and installation device and to capture images of the welding process. In the embodiments shown in Figures 7a and 7c, the sleeve end cap transport and installation device has 12 measuring elements 500 arranged on each of its support surfaces, including four first measuring elements 510, four second measuring elements 520, and four third measuring elements 530. These elements assist in adjusting the gap before assembling the sleeve end cap 600, providing early warning during the welding process, and triggering a system alarm when the allowable deviation of the assembly gap is exceeded, thereby controlling the welding quality of the components.

[0100] The steps for installing the sleeve head 600 using the sleeve head reversing and installation device of this utility model are as follows:

[0101] Step S1: Select the appropriate base 100 and pipe clamp 300 according to the size of the sleeve end cap 600 to be installed, and transport the components of the device to the work site.

[0102] Step S2: Check the reliability and integrity of each component according to the installation diagram of the sleeve end cap reverse installation device, and assemble each component. Lift the device 200 at the base 100 and start the motor 220 to test its stability. Install the measuring element 500 at each measuring point and connect it to the system to test its function.

[0103] Step S3: Insert the sleeve end cap 600 into the device and install the upper half ring 310 of the pipe clamp 300 to secure the pipe clamp 300.

[0104] Step S4: Move the casing head reversing and installation device to the work point, and adjust the position of the casing head 600 according to the layout coordinates (the caster 120 adjusts its horizontal position, i.e., X and Y coordinates; the lifting device 200 adjusts the Z coordinate).

[0105] Step S5: Perform welding. After welding, perform non-destructive testing. After passing the test, remove the pipe clamp 300 and remove the sleeve end cap relocation and installation device.

[0106] Step S3 includes the following sub-steps:

[0107] Step S 31 Use a lifting tool to connect the sleeve end cap 600, raise the sleeve end cap 600 to a certain height, remove the upper half ring 310 of the pipe clamp 300 and place the sleeve end cap reverse installation device directly below the sleeve end cap 600, put the sleeve end cap 600 into the lower half ring 320 of the pipe clamp 300, connect the upper half ring 310 and the lower half ring 320, and tighten and fix the sleeve end cap 600.

[0108] Step S 32 After the casing head 600 is fixed to the casing head reverse installation device, remove the hoisting tools.

[0109] Step S5 includes the following sub-steps:

[0110] Step S 51 Measure the gap, and after the requirements are met, perform assembly welding to weld the sleeve end cap 600 to the target position;

[0111] Step S 52 The 600mm sleeve end cap is assembled and welded. After welding, non-destructive testing is performed. After passing the non-destructive testing, the 300mm pipe clamp is removed and the sleeve end cap is moved away for transport and installation.

[0112] In a specific embodiment of the sleeve end cap relocation and installation device of this utility model, the usage steps are as follows:

[0113] Step 1: Select the appropriate specifications of base 100 and pipe clamp 300 according to the installed sleeve end cap 600, transport the components of the device to the work point, and assemble them as shown in Figure 9. Install the lifting device 200 on the base 100 and start the motor 220 to test its stability. Install the measuring element 500 at each measuring point and connect it to the system to test its function.

[0114] Step 2: Place the sleeve end cap 600 on the sleeve end cap reversing and installation device. After it is placed stably, install the upper half ring 310 of the pipe clamp 300 and tighten it with bolts. (The structural diagram of the sleeve end cap 600 after installation is shown in Figure 8.)

[0115] Step 3: Based on the coordinate values ​​of the three-dimensional diagram of the pipeline, adjust the position of the sleeve end cap 600 in the plane using the caster wheel 120. After the plane coordinates are determined, step on the brake of the caster wheel 120 to lock it, start the lifting device 200, lift it to the specified height, and measure whether the gap meets the requirements.

[0116] Step 4: Assemble and weld the sleeve end caps at 600mm.

[0117] Step 5: After the 600mm welding of the sleeve end cap is completed and the non-destructive testing is qualified, remove the 300mm pipe clamp and move the sleeve end cap transport and installation device away.

[0118] This utility model of sleeve end cap relocation and installation device can realize the three-dimensional spatial position adjustment and visual assembly welding of large-diameter components. It has a simple structure and can be quickly disassembled and assembled. It is a fixed relocation and installation device suitable for large-diameter sleeve end caps.

[0119] This utility model is a device for transporting and installing sleeve end caps 600 in a fixed manner. It can also measure the assembly gap before assembly and during the welding process. If the gap exceeds the allowable tolerance, the system will automatically alarm to achieve the goal of controlling quality requirements, shortening the construction cycle, and avoiding unnecessary rework.

[0120] In summary, the sleeve end cap relocation and installation device of this utility model can realize the fixed relocation of large-diameter and thick-walled components, and meet the position adjustment in three-dimensional space. It can also measure the assembly gap in real time, and the system alarms when the allowable deviation is exceeded, thereby controlling the welding quality of the components. Combined with video acquisition, it can meet the image collection during construction and provide a basis for subsequent inspection.

[0121] Compared to the previous method of using welded lifting lugs and scaffolding as lifting points, this method eliminates the need for temporary lifting lug fabrication and welding, as well as scaffolding erection. The device has a simple, detachable, and reusable structure. Combined with a visualization device, it allows for the measurement of assembly gaps and the collection of image data, reducing labor input, improving construction efficiency, and enhancing welding quality. The horizontal position (X and Y coordinates) is adjusted via casters, while the height position (Z coordinate) is adjusted via a lifting device, significantly increasing assembly speed, improving construction efficiency, shortening the overall construction period, reducing safety hazards, and saving on manpower, materials, and machinery consumption. This aligns with the design philosophy of low investment and high return.

[0122] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A sleeve end cap reversing and installation device, characterized in that, The casing end cap relocation and installation device includes: a base, a lifting device, a pipe clamp, and a diagonal bracing structure; the lifting device is located at the lower part of the base and is used to lift the casing end cap relocation and installation device and the casing end cap installed thereon; the pipe clamp includes an upper half ring and a lower half ring, the lower half ring is fixedly connected to the upper part of the base, and the upper half ring is connected to the lower half ring through a connector to form a complete circular ring, which is used to tighten and fix the casing end cap; the diagonal bracing structure is located at the upper part of the base, on the side of the pipe clamp, and is used to support the pipe clamp.

2. The casing end cap reversing and installation device as described in claim 1, characterized in that, The base's bearing surface includes a bearing beam made of H-beams, with a steel plate laid on the upper part of the bearing beam, and a caster wheel with brakes connected to the lower part of the bearing surface.

3. The casing end cap reversing and installation device as described in claim 2, characterized in that, A first measuring element is provided on the bearing plane of the base.

4. The casing end cap reversing and installation device as described in claim 2, characterized in that, The lifting device is H-shaped and includes at least four lifting units. The four lifting units are located at the four corners of the lifting device, and the lifting device is fixedly connected to the load-bearing beam.

5. The casing end cap reversing and installation device as described in claim 4, characterized in that, The lifting unit adopts a hydraulic lifting device or a trapezoidal screw lifting device.

6. The casing end cap reversing and installation device as described in claim 1, characterized in that, The upper and lower half rings of the pipe clamp are made of bent steel plates, and their bending radius matches that of the sleeve end cap. The connecting parts for the upper and lower half rings are bolts.

7. The casing end cap reversing and installation device as described in claim 1, characterized in that, The bottom of the lower half ring is provided with a support member for connecting to the upper part of the base; the upper part of the upper half ring is provided with a fixing plate for fixing to the diagonal brace structure.

8. The casing end cap reversing and installation device as described in claim 7, characterized in that, The surfaces of the support member and the fixing plate are provided with a second measuring element.

9. The casing end cap reversing and installation device as described in claim 1, characterized in that, The diagonal bracing structure includes a column and a diagonal brace. The column is located close to the side of the pipe clamp and is fixedly connected to the pipe clamp by a connector. One end of the diagonal brace is fixed to the column, and the other end of the diagonal brace is fixed to the base.

10. The casing end cap reversing and installation device as described in claim 9, characterized in that, A third measuring element is provided on the side of the diagonal brace structure.

Images