Tension-resistant composite pipe laying aid for shafts

Abstract

Provided is a vertical shaft tensile composite pipe laying auxiliary device, which is adapted to and penetrates a tensile composite pipe arranged in a first anti-skid groove, is fixed to the sleeve through a clamping plate clamped to the side of the first anti-skid groove and detachably fixed to the sleeve, and is fixed to the sleeve through a pressing plate clamped to the side of a second anti-skid groove arranged on the other side of the sleeve wall and detachably fixed to the sleeve; and the tensile composite pipe is fixed to the wall or the horizontal beam in the well through the sleeve. The device solves the problems of long construction period and complex pipe laying process caused by the repeated use of a lifting platform for pipe laying, does not need to rely on the repeated use of a lifting platform for pipe laying, has high installation stability, reduces the deviation accumulation of long-distance pipe arrangement, reduces the risk of deviation of the pipe from the preset position, and reduces the workload of later adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of composite pipe downhole pipe laying technology, specifically relating to an auxiliary device for laying tensile composite pipes for vertical shafts. Background Technology

[0002] Pipeline systems, as the best carriers for media transmission, play a vital role in transportation under various operating conditions. With the development of oil and gas extraction, underground energy storage, and deep geological exploration, it is unavoidable to lay pipelines of various functions in vertical shafts that can reach depths of hundreds or even thousands of meters. In addition to pipelines for domestic use such as water supply, drainage, power supply, and gas supply, many working pipelines are often required. The selection and installation of these working pipelines are often fraught with difficulties.

[0003] The reliability requirements for working pipelines within vertical shafts are very high. During construction and installation, traditional metal pipes are typically 6m or 12m long, with 6m being the most common for ease of installation. Due to their weight, steel pipes require specialized hoisting equipment for each installation. Many companies install hoisting platforms inside the shaft, placing several fixed-length steel pipes on the platform each time. After the platform is moved to the designated point, the pipes are installed and fixed, the platform is returned to the ground, and the pipes are moved down into the shaft again for installation… This process is extremely time-consuming. Furthermore, the flanges at the ends of the steel pipes used for butt joints are limited by welding processes and cannot guarantee perfect perpendicularity to the pipe axis. For vertical shafts, the pipe layout requirements are high. Long-distance rigid pipe layouts may gradually worsen deviations due to contact issues at the flange connection surfaces, eventually causing the pipes to deviate from their intended positions, making subsequent adjustments very difficult. Therefore, to address these issues, it is necessary to design a tensile-resistant composite pipe for vertical shafts and a matching pipe-laying auxiliary device to minimize the accumulation of deviations during long-distance pipe layouts. Utility Model Content

[0004] The technical problem solved by this utility model is to provide an auxiliary device for laying tensile composite pipes in vertical shafts. By designing a clamping sleeve and a pressure plate and clamping plate installed on the clamping sleeve to press and fix the steel wire rope and tensile composite pipe respectively, the tensile composite pipe can be laid and fixed in the vertical shaft. This solves the problems of long construction cycle and complicated laying process that exist in the method of laying pipes by repeatedly moving back and forth with a hoisting platform. It eliminates the need for repeated moving back and forth with a hoisting platform, simplifies the hoisting and fixing process, significantly shortens the construction period, has high installation stability, minimizes the accumulation of deviations when the pipeline is laid over a long distance, reduces the risk of the pipeline deviating from the preset position, and reduces the amount of adjustment work in the later stage.

[0005] The technical solution adopted in this utility model is as follows: a pipe-laying auxiliary device for tensile composite pipes in vertical shafts, including a sleeve, a pressure plate, and a clamping plate. The sleeve has an anti-slip groove, and the tensile composite pipe adapted to and passing through the anti-slip groove is fixedly connected to the sleeve by a clamping plate that is fastened to the groove opening on one side of the anti-slip groove and is detachably fixed to the sleeve. Anti-slip is achieved by the tight fit between the outer protective layer on the tensile composite pipe, the anti-slip groove, and the clamping plate. The sleeve has an anti-slip groove on the other side of the groove wall, and a steel wire rope adapted to and passing through the anti-slip groove is fixed to the sleeve by a pressure plate that is fastened to the groove opening on the anti-slip groove and is detachably fixed to the sleeve. When the tensile composite pipe is lowered into place in the vertical shaft, the sleeve is fixed to the shaft wall or the crossbeam inside the shaft, thus completing the fixation of the tensile composite pipe in the vertical shaft.

[0006] The anti-slip groove one is a U-shaped groove with a slot that runs through the upper and lower surfaces of the sleeve and is located on the right side wall of the sleeve. The anti-slip groove two is an arc-shaped groove that is compatible with the wire rope. The semi-circular groove surface of the anti-slip groove one has stepped anti-slip grooves that extend to the vertical groove surfaces on the corresponding sides at both ends. The arc-shaped groove surface of the anti-slip groove two also has stepped anti-slip grooves.

[0007] Furthermore, the card plate is a cross-shaped plate structure that fits into the anti-slip groove in the middle and into the mounting grooves on the right side wall of the sleeve at both ends. The arc-shaped groove wall of the card plate facing the anti-slip groove is also provided with stepped anti-slip grooves. The card plate is fixed to the right side of the sleeve by fastening bolts that fit and connect to the threaded holes on the side wall of the mounting groove through the through holes on both ends of the plate.

[0008] Furthermore, the pressure plate also has a second anti-slip groove with a stepped anti-slip groove on the side wall facing the two sides of the anti-slip groove. The pressure plate is fixedly connected to the sleeve by a second locking bolt that fits through the four corner through holes and the threaded holes at the corresponding positions on the left side wall of the sleeve.

[0009] Furthermore, bolt holes extending to the right side wall are made at the four corners of the left side wall of the ferrule. With the fastening bolts used to connect the ferrule to the ferrule plate removed, the tensile composite pipe lowered into the shaft is fixed to the shaft wall or the crossbeam inside the shaft by high-strength bolts that are compatible with the bolt holes at the four corners of the ferrule, thereby realizing the fixed installation of the tensile composite pipe inside the shaft.

[0010] Advantages of this utility model compared to the prior art: 1. This technical solution uses a clamp as a base and is equipped with a detachable clamping plate and pressure plate to form a stable force transmission structure that fixes the tensile composite pipe and the steel wire rope respectively, providing a core connection carrier for the hoisting and lowering of the tensile composite pipe in the vertical shaft. 2. In this technical solution, stepped anti-slip grooves are provided on the surfaces of both anti-slip groove one and anti-slip groove two. These grooves can physically fit with the outer protective layer of the tensile composite pipe and the surface of the steel wire rope, respectively. This prevents relative slippage between the tensile composite pipe and the steel wire rope and the clamp caused by gravity pulling or vibration, ensuring the stability and reliability of the construction process and eliminating safety hazards. 3. In this technical solution, after the tensile composite pipe is lowered to the preset position, the fastening bolt 1 connecting the clamping plate and the clamping sleeve can be removed. Through the preset bolt holes at the four corners of the clamping sleeve, the clamping sleeve can be fixed to the well wall or the crossbeam inside the well with high-strength bolts, thereby achieving precise positioning and long-term fixation of the tensile composite pipe in the vertical shaft without the need to build an additional complex fixing structure. 4. This technical solution has a simple structure and novel design. The pipeline lowering and fixing in the well are safe and reliable. It solves the problems of long construction period and complicated pipeline laying process that exist when using a hoist to move the pipeline back and forth multiple times. It eliminates the need for multiple hoisting trips, simplifies the hoisting and fixing process, significantly shortens the construction period, and has high installation stability. It minimizes the accumulation of deviations when laying pipelines over long distances, reduces the risk of pipelines deviating from the preset position, and reduces the amount of adjustment work in the later stage. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the tensile composite pipe of this utility model when it is lowered using a pipe-laying auxiliary device; Figure 2 This is a schematic diagram of the structure of the tensile composite pipe of this utility model when it is lowered into place in a vertical shaft and fixed to the shaft wall or the crossbeam (not shown) inside the shaft; Figure 3 This is a schematic diagram of the three-dimensional structure of the card sleeve of this utility model. Detailed Implementation

[0012] The following will be based on the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and 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.

[0013] It should be noted that, unless otherwise stated herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0015] Vertical shaft tensile composite pipe laying auxiliary device, such as Figure 1-3 As shown, the device includes a sleeve 5, a pressure plate 6, and a clamping plate 7. The sleeve 5 has an anti-slip groove 9, and a tensile composite pipe 8 adapted to and passing through the anti-slip groove 9 is fixedly connected to the sleeve 5 by the clamping plate 7, which is fastened to the side opening of the anti-slip groove 9 and detachably fixed to the sleeve 5. Anti-slip is achieved by the outer protective layer on the tensile composite pipe 8 being tightly fitted with the anti-slip groove 9 and the clamping plate 7. On the other side of the sleeve 5, there is an anti-slip groove 10, and a steel wire rope 11 adapted to and passing through the anti-slip groove 10 is fixed to the sleeve 5 by the pressure plate 6, which is fastened to the side opening of the anti-slip groove 10 and detachably fixed to the sleeve 5. When the tensile composite pipe 8 is lowered into place in the vertical shaft, the sleeve 5 is fixed to the shaft wall or the crossbeam inside the shaft to complete the fixation of the tensile composite pipe 8 in the vertical shaft.

[0016] like Figure 3 As shown, the anti-slip groove 9 is a U-shaped groove with a slot that runs through the upper and lower surfaces of the sleeve 5 and is located on the right side wall of the sleeve 5. The anti-slip groove 10 is an arc-shaped groove that is adapted to the wire rope 11. The semi-circular groove surface of the anti-slip groove 9 has stepped anti-slip grooves 12 that extend to the vertical groove surfaces of the corresponding sides at both ends. The arc-shaped groove surface of the anti-slip groove 10 also has stepped anti-slip grooves 12. Their function is to increase the friction and prevent the wire rope 11 or the tensile composite tube 8 from slipping.

[0017] The connection structure between the clamping plate 7 and the clamping sleeve 5 is as follows: The clamping plate 7 is a cross-shaped plate structure that fits into the anti-slip groove 9 in the middle and into the mounting groove 4 on the right side wall of the clamping sleeve 5 at both ends. The arc-shaped groove wall of the clamping plate 7 facing the anti-slip groove 9 is also provided with a stepped anti-slip groove 12. The clamping plate 7 is fixed to the right side of the clamping sleeve 5 by fastening bolts 3 that fit into the threaded holes on the side wall of the mounting groove 4 through the through holes on both ends of the plate. After the clamping plate 7 is fixed on the clamping sleeve 5 to clamp and fix the tensile composite tube 8, the outer wall of the clamping plate 7 cannot retract into the anti-slip groove 9. In this way, after the clamping sleeve 5 is fixed to the well wall or the crossbeam inside the well, the clamping plate 7 can contact the well wall or the crossbeam inside the well, ensuring that the tensile composite tube 8 can be reliably clamped and fixed even without the fastening bolts 3. The connection structure between the pressure plate 6 and the clamping sleeve 5 is as follows: The side wall of the pressure plate 6 facing the anti-slip groove 10 is also provided with an anti-slip groove 10 with a stepped anti-slip groove 12. The pressure plate 6 is fixedly connected to the clamping sleeve 5 by a locking bolt 2 that fits through the four corner through holes and the threaded holes at the corresponding positions on the left side wall of the clamping sleeve 5. With the structure of the anti-slip groove 10 with the stepped anti-slip groove 12 on the pressure plate 6 and the clamping sleeve 5, the pressure plate 6 and the clamping sleeve 5 can be detachably fixed together to achieve a reliable clamping and anti-slip connection with the wire rope 11. In the above structure, the stepped anti-slip groove 12 is provided on the surface of both the anti-slip groove 19 and the anti-slip groove 10, which can form a physical fit with the outer protective layer of the tensile composite pipe 8 and the surface of the wire rope 11, respectively, thereby avoiding relative sliding between the tensile composite pipe 8 and the wire rope 11 and the clamping sleeve 5 due to gravity pulling or vibration, ensuring the stability and reliability of the construction process and eliminating safety hazards. The specific fixing structure of the tension composite pipe 8 lowered into position in the vertical shaft is as follows: The four corners of the left side wall of the sleeve 5 are provided with bolt holes that extend to the right side wall. After removing the fastening bolts 3 used to connect the sleeve 5 and the plate 7, the high-strength bolts 1 that are compatible with the bolt holes at the four corners of the sleeve 5 are used to fix the sleeve 5 to the shaft wall or the crossbeam inside the shaft, thereby achieving the fixed installation of the tension composite pipe 8 in the vertical shaft. In the above structure, after the tension composite pipe 8 is lowered to the preset position, the fastening bolts 3 connecting the plate 7 and the sleeve 5 can be removed. Through the preset bolt holes at the four corners of the sleeve 5, the high-strength bolts 1 are used to fix the sleeve 5 to the shaft wall or the crossbeam inside the shaft, thereby achieving the precise positioning and long-term fixation of the tension composite pipe 8 in the vertical shaft. There is no need to build an additional complex fixing structure. Under the pull of the steel wire rope 11, the vertical position of the tension composite pipe 8 in the vertical shaft is ensured. When using the auxiliary device for laying tensile composite pipes in vertical shafts, the power equipment is mainly used to drag the pipe during the installation process to prevent it from slipping. A winch can be used as the equipment. Winches are mature technologies and are used in many industries, so a winch is sufficient as the power equipment for this pipe laying device. The winch is equipped with a wire rope, which is fixed to the auxiliary device for laying tensile composite pipes in vertical shafts connected to the pipe. The winch is started to release the rope, while simultaneously controlling the lowering of the tensile composite pipe.

[0018] The main auxiliary equipment is a traction machine, used to transport the tensile composite pipe 8, reducing manual labor. The traction machine is now a very mature product, and its selection as an auxiliary device for transporting composite pipes is highly adaptable.

[0019] During installation, first mate the sleeve 5 and the tensile composite tube 8 with the clamping plate 7, clamping the tensile composite tube 8 between the sleeve 5 and the clamping plate 7. Then tighten the fastening bolt 3, so that the internal stepped anti-slip groove 12 is tightly clamped onto the outer protective layer of the tensile composite tube 8. The outer protective layer of the tensile composite tube 8 is allowed to have indentations at this stage. The indentations are embedded in the stepped anti-slip groove 12 of the auxiliary device, ensuring that there is no relative displacement between the tensile composite tube and the sleeve 5.

[0020] After the tensile composite pipe 8 is installed and fixed, the pressure plate 6 and the wire rope 11 are used in the same way to tightly clamp and fix the wire rope 11 to the sleeve 5. This completes the preparation of the sleeve 5 and the tensile composite pipe 8 before they are lowered into the well.

[0021] Subsequently, a winch and traction machine were used to slowly lower the pipe. As the pipe was gradually lowered, the machine was stopped at regular intervals to install a pipe-lowering auxiliary device on the tensile composite pipe 8. During the installation of the clamping sleeve 5, construction personnel remained on the ground, significantly reducing the probability of accidents. Once the pipe was lowered to the predetermined position within the shaft, the winch and traction machine braked. Figure 3 In this manner, first remove the fastening bolt 3 on the clamping plate 7, and then use the high-strength bolt 1 to install the clamping sleeve 5 on the well wall or the crossbeam inside the well through the bolt hole reserved on the clamping sleeve 5. As the high-strength bolt 1 gradually tightens, the clamping plate 7 is pressed, thereby clamping and fixing the tensile composite pipe 8, and finally completing the installation.

[0022] Following the above procedure, remove the clamping plates 7 one by one and install and secure the clamping sleeves 5 to the well wall or crossbeam to complete the installation of the entire pipeline. Finally, remove the pressure plate 6. The entire installation process is highly efficient and greatly reduces manual labor, minimizing the accumulation of deviations when the pipeline is laid out over a long distance and reducing the risk of the pipeline deviating from the preset position.

[0023] This technical solution uses the clamp 5 as a base and is equipped with a detachable clamping plate 7 and a pressure plate 6 to form a stable force transmission structure that fixes the tensile composite pipe 8 and the steel wire rope 11 respectively, providing a core connection carrier for the hoisting and lowering of the tensile composite pipe 8 in the vertical shaft. The structure is simple and the design is novel. The pipe lowering and fixing in the shaft are safe and reliable. It solves the problems of long construction cycle and complicated pipe laying process that exist in the method of multiple round trips of hoisting platform to carry and move pipes. It does not need to rely on multiple round trips of hoisting platform to carry and move pipes, simplifies the hoisting and fixing process, significantly shortens the construction period, has high installation stability, minimizes the accumulation of deviations when the pipeline is laid over a long distance, reduces the risk of the pipeline deviating from the preset position, and reduces the amount of adjustment work in the later stage.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pipe-laying auxiliary device for tensile composite pipes used in vertical shafts, characterized in that: The device includes a sleeve (5), a pressure plate (6), and a clamping plate (7). The sleeve (5) has an anti-slip groove (9), and a tensile composite tube (8) that is adapted to and passes through the anti-slip groove (9) is fixedly connected to the sleeve (5) by the clamping plate (7) which is fastened to the side opening of the anti-slip groove (9) and is detachably fixed to the sleeve (5). The anti-slip effect is achieved by the outer protective layer on the tensile composite tube (8) being tightly fitted with the anti-slip groove (9) and the clamping plate (7). The other side of the sleeve (5) has an anti-slip groove (10), and the steel wire rope (11) that is adapted to and passes through the anti-slip groove (10) is fixed to the sleeve (5) by the pressure plate (6) that is fastened to the side opening of the anti-slip groove (10) and detachably fixed to the sleeve (5); when the tensile composite pipe (8) is lowered into place in the vertical shaft, the sleeve (5) is fixed to the well wall or the crossbeam in the well to complete the fixation of the tensile composite pipe (8) in the vertical shaft.

2. The auxiliary device for laying tensile composite pipes for vertical shafts according to claim 1, characterized in that: The first anti-slip groove (9) is a U-shaped groove with a slot that runs through the upper and lower surfaces of the sleeve (5) and located on the right side wall of the sleeve (5). The second anti-slip groove (10) is an arc-shaped groove that is adapted to the wire rope (11). The semi-circular groove surface of the first anti-slip groove (9) has a stepped anti-slip groove (12) with both ends extending to the vertical groove surface on the corresponding side. The arc-shaped groove surface of the second anti-slip groove (10) also has a stepped anti-slip groove (12).

3. The auxiliary device for laying tensile composite pipes for vertical shafts according to claim 1, characterized in that: The card plate (7) is a cross-shaped plate structure that fits into the anti-slip groove (9) in the middle and into the mounting groove (4) on the right side wall of the sleeve (5) at both ends. The card plate (7) also has a stepped anti-slip groove (12) on the arc-shaped groove wall facing the anti-slip groove (9). The card plate (7) is fixed to the right side of the sleeve (5) by a fastening bolt (3) that fits into the threaded hole on the side wall of the mounting groove (4) through the through hole on both ends of the plate.

4. The auxiliary device for laying tensile composite pipes for vertical shafts according to claim 1, characterized in that: The pressure plate (6) also has an anti-slip groove two (10) with a stepped anti-slip groove (12) on the side wall facing the anti-slip groove two (10). The pressure plate (6) is fixedly connected to the sleeve (5) by a locking bolt two (2) that is adapted to the threaded hole at the corresponding position on the left side wall of the sleeve (5) through the four corner through holes.

5. The auxiliary device for laying tensile composite pipes for vertical shafts according to claim 1, characterized in that: The sleeve (5) has bolt holes at the four corners of the left side wall that extend to the right side wall. The tensile composite pipe (8) lowered into the shaft is fixedly installed on the shaft wall or the crossbeam by high-strength bolts (1) that are compatible with the bolt holes at the four corners of the sleeve (5) after the fastening bolts (3) used to connect the sleeve (5) and the plate (7) are removed, thereby realizing the fixed installation of the tensile composite pipe (8) in the shaft.

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