Vertical shaft pipeline alignment device
By using a vertical shaft pipeline alignment device, the verticality and coaxiality of the pipeline section are ensured by power components and limit components, which solves the problem of non-vertical and misaligned pipeline sections in the shaft and improves the welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-24
AI Technical Summary
In the complex environment of well shafts, the problem of non-vertical and misaligned pipeline sections is difficult to solve, affecting the welding quality.
Design a vertical shaft pipe alignment device, including a power component, a traction component, a support frame, and a limiting component. The power component drives the traction component to lift the pipe section, the support frame ensures verticality, and the limiting component ensures the coaxiality of adjacent pipe sections to achieve precise alignment.
Ensure the verticality and coaxiality of pipeline sections to improve welding quality, reduce the possibility of misalignment and overturning, and enhance the accuracy and stability of overall pipeline welding.
Smart Images
Figure CN224032570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of well pipe replacement technology, and in particular to a vertical shaft well pipe alignment device. Background Technology
[0002] Most mine shaft facilities are affected by hydrogeological conditions, resulting in severe corrosion of steel structures, especially pipelines inside the shaft. Therefore, replacing pipelines inside the shaft is one of the common projects for installation companies.
[0003] The construction methods currently used are mainly divided into two types: one is the extraction and embedding method, which mainly uses lifting equipment for construction and is mainly used for replacing pipelines in a local wellbore; the other is the overall replacement method, which mainly uses lifting equipment in conjunction with a well sinking winch for construction. At the wellhead, 3 to 5 pipelines are assembled into a pipe section, and the well sinking winch is used to lower the pipe section to the installation position for welding.
[0004] However, ensuring the verticality of the pipelines and the positional relationship between adjacent pipelines during assembly welding is difficult and is a problem that urgently needs to be solved by those skilled in the art.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] The technical problem to be solved by this utility model is to solve the problem of welded pipe sections in complex environments of well shafts being non-vertical and misaligned with each other.
[0007] This utility model solves the above-mentioned technical problems through the following technical means:
[0008] This utility model claims protection for a vertical shaft pipe alignment device, which is installed at the sleeve column of the shaft and includes a power component, a traction component, a support frame and a limiting component. The sleeve column is provided with a support frame, and the power component is arranged at the shaft opening. The power component is configured to drive the traction component to lift at least two pipe sections in sequence.
[0009] The lowest pipe section is vertically inserted and fixed inside the support frame. Limiting components are installed at the hoisting path of the pipe section. The limiting components are configured to limit the position of the pipe section to ensure the coaxiality of adjacent pipe sections.
[0010] Preferably, at least two limiting components are sequentially arranged along the depth direction of the wellbore on the support column. Each limiting component is provided with a limiting channel, which is coaxial with each other, and corresponding pipeline sections are inserted into each limiting channel.
[0011] Preferably, the limiting component includes a limiting plate and a limiting ring petal. The sleeve column is provided on one side of the limiting plate, and the limiting plate and the sleeve column are perpendicular to each other. The other side of the limiting plate has a semi-circular hole through it, and the limiting ring petal is installed on the other side of the limiting plate. The inner ring surface of the limiting ring petal mates with the semi-circular hole to form a limiting channel.
[0012] Preferably, the cross-section of the support frame is in the shape of a "well" and a pipe section is vertically inserted into the well opening. A lifting block is protruding above the outer surface of the pipe section and the lifting block abuts against the upper surface of the well opening. The lifting block is configured to be connected to the traction component.
[0013] Preferably, the support frame includes at least four support beams, with adjacent support beams erected perpendicular to each other, and the at least four support beams forming a grid pattern.
[0014] Preferably, a sleeve is provided at the top of the pipeline section, and the sleeve is configured to form a plug-in fit with the bottom of the pipeline section located above it.
[0015] Preferably, the limiting ring has an "Ω" shaped cross-section, the arc-shaped part of the limiting ring mates with the semi-circular hole, the straight part of the limiting ring fits with the limiting plate, and they are connected to each other by a connecting unit.
[0016] Preferably, the straight plate portion of the limiting ring has a through hole, and the limiting plate has a corresponding screw hole. The locking bolt passes through the through hole and engages with the screw hole, wherein the locking bolt constitutes a connecting unit.
[0017] Preferably, the supporting beam is an I-beam.
[0018] Preferably, the traction component is a traction rope, the power unit winds up or outputs one end of the traction rope, and the other end of the traction rope forms a fork; the fork is respectively connected to the lifting lugs formed on both sides of the lifting block.
[0019] The advantages of this utility model are:
[0020] I. This utility model, by setting up a power component and a traction component, allows for the sequential hoisting of pipeline segments. With the aid of a support frame, one pipeline segment is hoisted and vertically inserted into the support frame for fixation. Then, another pipeline segment is hoisted and stacked coaxially. A limiting component ensures the coaxiality of adjacent pipeline segments, allowing for welding of the stacked surfaces. This design has at least two advantages: Advantage 1: Vertically inserting pipeline segments into the support frame ensures the verticality of the bottommost pipeline segment. Since all pipelines are stacked sequentially with the bottommost segment as the reference, this is constructive for subsequent welding work. Advantage 2: The limiting component ensures the coaxiality of adjacent pipeline segments, allowing the stacked surfaces to fit as closely as possible, thus guaranteeing welding quality.
[0021] 2. The limiting component mainly limits the pipe section by forming a limiting channel between the limiting plate and the limiting ring. The limiting channel is coaxial with the pipe section. Therefore, when the traction component lowers the pipe section, the pipe section slides down along the limiting channel. Since the adjacent limiting channels are coaxial with each other, the pipe sections guided by the limiting channel are naturally coaxial with each other.
[0022] III. The design of the support frame serves two main purposes. First, the contact between the lifting block and the upper surface of the manhole provides support for the lowest pipe section, creating a foundation for it. Second, the grid pattern of the support frame limits the movement of the pipe section, ensuring that the lowest pipe section can only move downwards with the grid pattern, preventing displacement, swaying, or overturning. This guarantees the verticality of the lowest pipe section, which is then stacked based on it. Therefore, the overall weld quality of the pipe system after welding is naturally ensured.
[0023] IV. The straight plate section of the limiting ring is mainly used to install the limiting ring on the limiting plate to avoid the problem of the whole being unusable due to damage to a single part.
[0024] 5. The lifting lugs can not only fix and level the pipeline section by contacting and engaging with the upper surface of the pipeline section, but also provide an installation position for the traction rope. In order to ensure that the pipeline section will not flip or shift during movement, the traction rope is forked, and the forks are connected to the lifting lugs on both sides of the lifting block. This ensures that the center of gravity is always located in the middle of the pipeline section during the lifting process. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of a vertical shaft pipe alignment device according to Embodiment 1 of this utility model;
[0026] Figure 2 This is a schematic diagram of the limiting component in Embodiment 1 of this utility model.
[0027] a. Support column; b1. First pipe section; b2. Second pipe section;
[0028] 1. Traction component; 2. Support frame; 3. Limiting assembly; 3b1. First limiting assembly; 3b2. Second limiting assembly; 30. Limiting plate; 31. Limiting ring. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0030] Example 1
[0031] See Figures 1 to 2 This utility model claims protection for a vertical shaft pipe alignment device, which is installed at the sleeve column a of the shaft and includes a power component, a traction component 1, a support frame 2 and a limiting component 3. The support frame 2 is installed at the sleeve column a, and the power component is arranged at the shaft opening. The power component is configured to drive the traction component 1 to lift at least two pipe sections in sequence. A sleeve is installed at the top of the pipe section and is configured to form an insertion fit with the bottom of the pipe section located above.
[0032] The lowest pipe section is vertically inserted and fixed inside the support frame 2. The cross-section of the support frame 2 is in the shape of a "well" and the pipe section is vertically inserted into the well opening. A lifting block is protruding above the outer surface of the pipe section. The lifting block abuts against the upper surface of the well opening. The lifting block is configured to connect with the traction component 1, which is a traction rope. The power component winds up or outputs one end of the traction rope, and the other end of the traction rope forms a fork. The fork is connected to the lifting lugs on both sides of the lifting block. The lifting lugs not only fix and level the pipeline section 2 by contacting and engaging with the upper surface of the lifting lugs, but also provide an installation position for the traction rope. In order to ensure that the pipeline section does not flip or shift during movement, the traction rope is forked, and the forks are connected to the lifting lugs on both sides of the lifting block. This ensures that the center of gravity is always located in the middle of the pipeline section during the lifting process. The support frame 2 includes at least four support beams. The support beams are I-beams, and two adjacent support beams are erected perpendicular to each other. The at least four support beams form a grid. The design of the support frame 2 has two main functions. First, the lifting block contacts and engages with the upper surface of the grid, providing support for the lowermost pipeline section and making the lowermost pipeline section a foundation reference. Secondly, the grid pattern of the support frame 2 acts as a limit on the outer wall of the pipeline section, ensuring that the lowest pipeline section can only move downwards with the grid pattern when it slides down, thus preventing the possibility of pipeline section offset, swinging, or flipping, and ensuring the verticality of the lowest pipeline section. The other pipeline sections are stacked based on the lowest pipeline section, thus naturally ensuring the overall quality of pipeline welding after welding.
[0033] Limiting components 3 are installed along the hoisting path of the pipeline section. These components are configured to limit the position of the pipeline section to ensure the coaxiality of adjacent sections. At least two limiting components 3 are sequentially installed on the support column a along the depth of the wellbore. Each limiting component 3 contains a limiting channel, which is coaxially aligned and accommodates corresponding pipeline sections. Each limiting component 3 includes a limiting plate 30 and a limiting annular petal 31. The support column a has the limiting plate 30 on one side, perpendicular to the support column a. A semi-circular hole penetrates the other side of the limiting plate 30, and a limiting annular petal 31 is installed on the other side. The inner surface of the limiting annular petal 31 aligns with the semi-circular hole to form a limiting channel. The petal 31 has an "Ω" shaped cross-section. The arc-shaped part of the limiting ring petal 31 aligns with the semi-circular hole, and the straight part of the limiting ring petal 31 fits against the limiting plate 30. They are connected to each other through a connecting unit. The straight part of the limiting ring petal 31 passes through the through hole, and the limiting plate 30 has a corresponding screw hole. The locking bolt passes through the through hole and engages with the screw hole. The locking bolt constitutes the connecting unit. The limiting component 3 mainly limits the limiting channel formed by the enclosure between the limiting plate 30 and the limiting ring petal 31. The limiting channel is coaxially arranged with the pipeline section. Therefore, when the traction component 1 drives the pipeline section to descend, the pipeline section slides down along the limiting channel. Since the adjacent limiting channels are coaxially arranged, the pipeline section guided by the limiting channel is naturally coaxial with each other.
[0034] This embodiment, by setting up a power component and traction component 1, allows for the sequential hoisting of pipeline segments. Then, with the support frame 2, one pipeline segment is hoisted and vertically inserted into the support frame 2 for fixation. Another pipeline segment is then hoisted and stacked coaxially. The limiting component 3 ensures the coaxiality of adjacent pipeline segments, allowing for welding of the stacked surfaces. This design has at least two advantages: First, the vertical insertion of pipeline segments into the support frame 2 ensures the verticality of the bottommost pipeline segment. Since all pipelines are stacked sequentially with the bottommost segment as the reference, this is constructive for subsequent welding work. Second, the limiting component 3 ensures the coaxiality of adjacent pipeline segments, making the stacked surfaces of adjacent pipeline segments as close and aligned as possible to guarantee welding quality.
[0035] Example 2
[0036] This embodiment, based on Embodiment 1, provides an application method for a vertical shaft pipe alignment device. The power components are preferably a stabilizing trolley and a pneumatic winch. The stabilizing trolley is preferably a 10t stabilizing trolley. The traction component 1 is preferably a Φ32mm non-rotating steel wire rope. In practical applications, to ensure the traction direction of the steel wire rope, a guide sheave is preferably added. The guide sheave is installed at the platform at the shaft opening. After being guided by the guide sheave, the steel wire rope extends into the shaft. In actual operation, the number of pipe sections is determined based on welding requirements. This application uses two sections as an example, namely the first pipe section b1 and the second pipe section b2. The limiting components 3 are correspondingly set as the first limiting component 3b1 and the second limiting component 3b2. The I-beam is preferably an I25b I-beam, referring to a cross-sectional height of 560mm, a width of 166mm, and a web thickness of 12.5mm. An I-beam, also known as a steel beam, is a long strip of steel with an I-shaped cross-section.
[0037] A vertical shaft pipe alignment device, when used, specifically includes:
[0038] To dismantle the old pipeline, a stabilizing crane is used. The stabilizing crane rope is passed through the guide sheave and lowered to the wellhead. When dismantling the old pipeline in the well shaft, the wellhead rocking platform and slab are removed first, and the holes are sealed with steel plates. Then, construction begins from the wellhead to the bottom of the well. Holes are drilled in the old pipeline and connected to steel wire ropes for lifting the pipeline. The stabilizing crane rope is lowered to the construction position, and the old pipeline is held in place by the stabilizing crane rope. The old pipeline is then dismantled in sections.
[0039] The second pipe section b2 is hoisted and moved to one side of the wellhead. The hoisting block of the second pipe section b2 is then secured to the pipe. Using a steel wire rope, a stabilizing chuck, and a pneumatic winch, the second pipe section b2 is lifted to a vertical position. The steel wire rope is then pulled down, causing the second pipe section b2 to move down into the wellhead of the support frame 2. The second pipe section b2 moves down along the limiting channel of the second limiting component 3b2 until the hoisting block contacts and engages with the upper surface of the support frame 2, thus achieving leveling and fixing of the second pipe section b2. The steel wire rope is then removed.
[0040] The first pipeline segment b1 is hoisted, and a steel wire rope is connected to the hoisting block of the first pipeline segment b1. The first pipeline segment b1 is lowered using the steel wire rope, the stabilizing car, and the pneumatic winch. Through the guiding action of the first limiting component 3b1, the lower end of the first pipeline segment b1 is inserted into the sleeve of the second pipeline segment b2, thereby aligning the two pipeline segments.
[0041] It is worth noting that if there are other pipeline sections, the same operation as hoisting the first pipeline section b1 can be repeated.
[0042] In addition, after alignment, adjacent pipeline sections can be welded using a hand-held welding machine, which avoids the influence of the wellhead environment. The welded pipeline is then used to replace the old pipeline; this is all existing technology in the field and will not be elaborated further.
[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A vertical shaft pipe alignment device, installed at the sleeve column (a) of the shaft, characterized in that, Includes a power assembly, a traction component (1), a support frame (2) and a limiting component (3). The support frame (2) is installed on the support column (a) of the frame, and the power assembly is arranged at the wellhead. The power assembly is configured to drive the traction component (1) to lift at least two pipeline sections in sequence. The lowest pipe section is vertically inserted and fixed in the support frame (2). A limiting component (3) is set at the hoisting path of the pipe section. The limiting component (3) is configured to limit the position of the pipe section to ensure the coaxiality of two adjacent pipe sections.
2. The vertical shaft pipeline alignment device according to claim 1, characterized in that, The support column (a) is provided with at least two limiting components (3) in sequence along the depth direction of the wellbore. Each limiting component (3) is provided with a limiting channel. The limiting channels are coaxially arranged and the corresponding pipeline sections are inserted into the limiting channels respectively.
3. The vertical shaft pipeline alignment device according to claim 2, characterized in that, The limiting component (3) includes a limiting plate (30) and a limiting ring (31). The sleeve column (a) is provided with one side of the limiting plate (30). The limiting plate (30) and the sleeve column (a) are perpendicular to each other. The other side of the limiting plate (30) has a semi-circular hole through it, and the limiting ring (31) is installed on the other side of the limiting plate (30). The inner ring surface of the limiting ring (31) mates with the semi-circular hole to form a limiting channel.
4. The vertical shaft pipeline alignment device according to claim 1, characterized in that, The cross section of the support frame (2) is in the shape of a "well" and the pipe section is vertically inserted into the well opening. A hanging block is protruding above the outer surface of the pipe section and the hanging block abuts against the upper surface of the well opening. The hanging block is configured to connect with the traction component (1).
5. A vertical shaft pipeline alignment device according to claim 4, characterized in that, The support frame (2) includes at least four support beams, with two adjacent support beams erected perpendicular to each other, and the four support beams forming a grid pattern.
6. The vertical shaft pipeline alignment device according to claim 1, characterized in that, A sleeve is installed at the top of the pipeline section, and the sleeve is configured to form a plug-in fit with the bottom of the pipeline section located above it.
7. A vertical shaft pipeline alignment device according to claim 3, characterized in that, The limiting ring (31) has an "Ω" shaped cross-section. The arc-shaped part of the limiting ring (31) mates with the semi-circular hole, and the straight part of the limiting ring (31) fits with the limiting plate (30) and is connected to each other through a connecting unit.
8. A vertical shaft pipeline alignment device according to claim 7, characterized in that, The limiting ring (31) has a through hole in the straight plate part, and the limiting plate (30) has a corresponding screw hole. The locking bolt passes through the through hole and engages with the screw hole. The locking bolt constitutes a connecting unit.
9. A vertical shaft pipeline alignment device according to claim 1, characterized in that, The supporting beam is an I-beam.
10. A vertical shaft pipeline alignment device according to claim 4, characterized in that, The traction component (1) is a traction rope. The power component winds up or outputs one end of the traction rope, and the other end of the traction rope forms a fork. The fork is connected to the lifting lugs formed on both sides of the lifting block.