A pipeline on-off connector dismounting tool

Abstract

The utility model provides a kind of pipeline on-off connector dismounting tool, it is related to oil production engineering technical field, including fixed slips, moving slips, adjusting screw and guiding mechanism.Fixed slips and moving slips are respectively clamped in the both ends of pipeline, and it is two half circular ring structure for upper and lower, and inner surface is equipped with taper tooth.Adjusting screw connects fixed slips and moving slips, and moving slips are driven relative to fixed slips by rotating adjusting screw, and the both ends of pipeline are realized to be opened or be taut.Guiding mechanism includes guiding sliding sleeve and guiding slide, and it is used to guide the moving direction of moving slips and bear tool weight.It also includes height adjusting support, for supporting and adjusting the height position of pipeline on-off connector.The utility model is safe and reliable in operation, can accurately control opening and taut distance, and significantly improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of oil production engineering technology, specifically to a pipeline connection and disconnection connector disassembly and assembly tool. Background Technology

[0002] In the production of heavy oil, the heat from steam generated by boilers is essential to reduce the viscosity of crude oil, ensuring its fluidity and enabling the continuous extraction of underground heavy oil. The high-temperature, high-pressure steam generated by the boilers is transported to the steam distribution rooms of each oil production station via steam injection pipelines. During winter, when oil production stations are shut down or boilers are under maintenance, the steam injection pipelines need to be vented to prevent condensation and subsequent freezing.

[0003] However, various shut-off valves installed on the steam injection pipeline may experience leaks or failure to close properly due to scaling and corrosion of the valve seats and cores. This can lead to condensation within the pipeline even after venting, potentially causing freezing and blockage. To prevent this, a pipeline on / off connector is installed on the steam injection pipeline according to safety requirements. When the branch line of the steam injection pipeline is out of service, the on / off connector is removed and separated from the main line. This prevents freezing and blockage even if internal leakage occurs when the valve is closed. When the branch line is reopened, the on / off connector is reinstalled to restore normal operation.

[0004] The pipeline connection / disconnector consists of a 0.8-1.0 meter long high-pressure steam injection pipeline and pipe fittings at both ends. The connection and sealing with the steam injection pipeline is achieved through a 55 mm long sealing steel ring, pipe fittings, and clamps. In practical applications, the assembly and disassembly of the pipeline connection / disconnector present two main technical challenges: First, when disassembling the pipeline connection connector, the clamps must be removed first, and then the pipe joint must be pried open by more than 55 mm before the sealing steel ring can be removed. In existing technology, the most commonly used solution in the field is to use a pry bar and a spreader to create the gap. However, due to the long length of the steam injection pipeline, it is difficult to pry open a gap of 55 mm with a pry bar. The spreader is inserted into the pipe joint to create the gap, but because the pipe joint is relatively short, the spreading process is unsafe. If the pipeline is misaligned, the spreader may burst out, and it is also difficult to remove. Since both ends of the pipeline connection connector are equipped with sealing steel rings, removing the steel rings using this method requires two prying and spreading operations, which is time-consuming, labor-intensive, and poses safety hazards.

[0005] Secondly, during the installation of pipeline connection connectors, if the steam injection pipeline and the connection connector are misaligned, resulting in excessive gaps at both ends, the clamps cannot be installed properly. In existing technologies, the most common on-site solution is to use jacks and hoists for alignment and tightening. This requires two to three jacks for vertical alignment and hoists for tightening the pipe joint. This operation is difficult, time-consuming, and labor-intensive, requiring the cooperation of multiple people to complete. Utility Model Content

[0006] The purpose of this utility model is to provide a pipeline on / off connector disassembly and assembly tool, a special tool that can safely and efficiently complete the disassembly and assembly of pipeline on / off connectors.

[0007] To achieve the above objectives, this utility model employs the following technical solution: A tool for assembling and disassembling pipeline connection / disconnection connectors, comprising: Fixed clamps are used to hold one end of the pipeline; A movable clamp is used to hold the other end of the pipeline; an adjusting screw connects the fixed clamp and the movable clamp, and by rotating the adjusting screw, the movable clamp is driven to move relative to the fixed clamp to open or tighten the two ends of the pipeline. The guiding mechanism is used to guide the movement direction of the movable slip and bear the weight of the tool.

[0008] Furthermore: the guiding mechanism includes: Guide sleeves are fitted onto pipelines to support the weight of tools and determine the direction of movement; A guide slide connects the fixed latch and the movable latch, and is used to guide the movement of the movable latch.

[0009] Furthermore, it also includes: The positioning bracket is connected to the fixing clip; The sliding bracket is connected to the movable latch; The two ends of the guide slide are respectively connected to the positioning bracket and the sliding bracket.

[0010] Furthermore, both the fixed clamp and the movable clamp are upper and lower semi-circular ring structures with conical teeth on the inner surface, and are clamped to the pipeline by fastening bolts.

[0011] Furthermore, the guide sleeve is a structure consisting of two semi-circular rings, which are fastened to the pipeline by fastening bolts.

[0012] Furthermore, it also includes a height adjustment bracket, which is disposed on the guide slide bar and is used to support and adjust the height position of the pipeline connection connector.

[0013] Furthermore: the height adjustment support includes an adjustment support bracket and an adjustment support screw. The adjustment support bracket is mounted on the guide slide bar, and the adjustment support screw is connected to the bottom of the adjustment support bracket. The height adjustment support is raised or lowered by rotating the adjustment support screw.

[0014] Furthermore, it also includes reinforcing ribs, which are disposed on the guide slide to improve the stability of the guide slide.

[0015] Furthermore, there are two adjusting screws, which are respectively connected to both sides of the fixed collet and the movable collet.

[0016] Furthermore, there are four guide slides, evenly distributed between the positioning bracket and the sliding bracket.

[0017] Compared with the prior art, the present invention has the following advantages: I. Safe and Reliable Operation. This utility model uses fixed and movable clamps to hold both ends of the pipeline, along with a stable guiding mechanism, avoiding the risk of the spreader popping out when inserted into the pipe joint in existing technologies. Operators only need to rotate the adjusting screw to complete the spreading or tightening operation, eliminating the need for easily slipping tools such as pry bars, greatly improving operational safety.

[0018] II. Precise Control of Spreading and Tightening Distance. This invention utilizes the threaded transmission principle of an adjusting screw to precisely control the movement distance of the moving jaws, accurately achieving a spreading distance of over 55 mm, meeting the technical requirements for disassembling and assembling the sealing steel ring. Compared to existing technologies where pry bars struggle to achieve sufficient spacing and the spreader control accuracy is poor, this invention achieves precise positioning, preventing damage to the sealing steel ring due to insufficient or excessive spreading.

[0019] Third, integrated operation significantly improves work efficiency. This utility model integrates the three major functions of spreading, tightening, and aligning into one tool. It solves the problem of pipeline misalignment by using a height adjustment bracket, eliminating the need for multiple jacks, hoists, and other tools as required by existing technologies.

[0020] IV. Extending Equipment Service Life. This invention can accurately control the spacing between pipe joints, avoiding damage to the sealing ring caused by brute force during disassembly, effectively extending the service life of the sealing ring and reducing equipment maintenance costs. V. Simple operation and reduced labor intensity. This utility model effectively amplifies human labor through threaded transmission. Operators only need to rotate the adjusting screw to generate sufficient spreading or tightening force. Compared with the heavy physical labor that requires the cooperation of multiple people in the prior art, it greatly reduces the difficulty of operation and labor intensity. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an assembly effect diagram of the present invention. Figure 3 This is a cross-sectional view showing the assembly effect of this utility model. Figure 4 This is a rendering showing the effect of installing the sealing steel ring in this utility model; Figure 5 This is a diagram showing the tensioning effect of this utility model during installation; Figure 6 This is a diagram showing the finished installation of this utility model.

[0022] In the diagram: 1. Adjusting screw; 2. Moving slip; 3. Guide sleeve; 4. Fixed slip; 5. Positioning bracket; 6. Sliding bracket; 7. Height adjustment support; 8. Guide slide; 9. Reinforcing rib; 10. Nut; 11. Adjusting support bracket; 12. Fastening bolt; 13. Adjusting support screw; 14. Clamp; 15. Sealing steel ring; 16. Pipeline shut-off connector; 17. Pipeline connector; 18. Pipeline; 19. Pipeline shut-off device. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] The pipeline connection and disconnection connector disassembly and assembly tool provided by this utility model is mainly composed of fixed clamp 4, movable clamp 2, adjusting screw 1, guide sleeve 3, positioning bracket 5, sliding bracket 6, guide screw 8, height adjustment support 7, adjustment support bracket 11, adjustment support screw 13, reinforcing rib 9, nut 10 and fastening bolt 12 and other components.

[0026] Both the fixed clamp 4 and the movable clamp 2 adopt an upper and lower semi-circular structure, which can completely surround the pipeline 18 and firmly clamp it with the fastening bolts 12. The inner surface of each clamp is provided with conical teeth. This conical tooth design can reliably engage with the outer surface of the pipeline 18 to prevent slippage during opening or tightening. The fixed clamp 4 is used to clamp one end of the pipeline 18 and keep its position fixed throughout the operation; the movable clamp 2 is used to clamp the other end of the pipeline 18 and can move back and forth by adjusting the drive of the lead screw 1.

[0027] Two adjusting screws 1 are respectively located on both sides between the fixed slip 4 and the movable slip 2, achieving precise distance control through a threaded transmission principle. When it is necessary to widen the pipe joint, rotating the adjusting screw 1 clockwise pushes the movable slip 2 away from the fixed slip 4, thus widening the distance between the two pipe joints; when it is necessary to tighten the pipe joint, rotating the adjusting screw 1 counterclockwise pulls the movable slip 2 closer to the fixed slip 4, achieving tightening of the two pipe joints. The double screw design ensures the stability of the transmission and the uniformity of the force.

[0028] The guide sleeve 3 also adopts an upper and lower two-ring structure, which is fitted onto the pipeline 18 by fastening bolts 12. The main function of the guide sleeve 3 is to bear the weight of the entire disassembly and assembly tool and to determine the direction of movement of the moving slip 2, preventing deviation or tilting during operation.

[0029] The positioning bracket 5 is welded to the lower semicircular part of the fixed slip 4, and the sliding bracket 6 is welded to the lower semicircular part of the movable slip 2. Four guide rails 8 are evenly distributed, with their ends connected to the positioning bracket 5 and the sliding bracket 6 respectively, forming a stable frame structure. The guide rails 8 play a guiding role during the movement of the movable slip 2, ensuring the accuracy of the movement direction, and also providing structural support for the entire tool.

[0030] To improve the stability of the guide slide bar 8 and prevent it from bending and deforming under stress, a reinforcing rib 9 is provided on the guide slide bar 8. The reinforcing rib 9 increases the bending stiffness of the guide slide bar 8, ensuring that the tool can maintain a stable working state under large spreading or tensioning forces.

[0031] The height adjustment bracket 7 is mounted on two guide slides 8 at the bottom and includes an adjustment bracket support 11 and an adjustment screw rod 13. The adjustment bracket support 11 sits on the guide slides 8 and can move along the guide slides 8 to adapt to different working positions. The adjustment screw rod 13 is connected to the bottom of the adjustment bracket support 11, and the height adjustment bracket 7 can be raised or lowered by rotating the adjustment screw rod 13. When there is a height misalignment between the pipeline 18 and the pipeline switch 19, the pipeline switch 19 can be placed on the height adjustment bracket 7, and the height can be aligned by adjusting the lifting function of the screw rod 13, solving the problem of needing multiple jacks for alignment in the prior art.

[0032] The working principle of this invention is to use fixed clamps 4 and movable clamps 2 to clamp the two ends of the pipeline 18 at intervals. By rotating the adjusting screw 1 mounted on the guide sleeve 3, the movable clamps 2 are pulled or pushed, causing the ends of the pipeline 18 clamped by the movable clamps 2 to move accordingly, thereby opening or closing the adjusting screw 1 by the corresponding distance. Throughout the process, the guide slide 8 ensures the accuracy of the movement direction, and the height adjustment bracket 7 provides the necessary support and alignment function.

[0033] In practical use, first, place the guide sleeve 3 and the fixed slip 4 of the disassembly and assembly tool on both ends of the separated pipeline 18, adjust the distance between the movable slip 2 and the guide sleeve 3, and then tighten the fastening bolts 12 on the movable slip 2 and the fixed slip 4 so that the slips tightly grip the pipeline 18.

[0034] When disassembling the pipeline switch 19, first remove the clamps 14 at both ends of the pipeline switch 19. After installing the disassembly tools, adjust the distance between the movable slip 2 and the guide sleeve 3 to be greater than 60 mm. Then, turn the adjusting screw 1 clockwise to widen the distance between the pipeline connector 17 and the pipeline switch connector 16. When the distance is widened to greater than 55 mm, remove the sealing steel ring 15 at one end. Then, remove the sealing steel ring 15 at the other end in the same way. Then, remove the pipeline switch 19 to complete the disassembly operation. Finally, loosen the adjusting screw 1 counterclockwise, remove the fastening bolts 12 on the guide sleeve 3, movable slip 2, and fixed slip 4, and the disassembly tools can be safely removed.

[0035] When installing the pipeline switch 19, first, use the guide sleeve 3 and the fixed clamp 4 to place the disassembly and assembly tools on both ends of the separated pipeline 18. Place the pipeline switch 19 on the height adjustment bracket 7, and use the adjusting screw 13 on the height adjustment bracket 7 to adjust the height alignment of the pipeline switch connector 16 and the pipeline connector 17. Adjust the distance between the movable clamp 2 and the guide sleeve 3, and then tighten the fastening bolts 12 on the movable clamp 2 and the fixed clamp 4 to make the clamps firmly grip the pipeline 18. First, turn the adjusting screw 1 clockwise to widen the distance between the pipe connector 17 and the pipe switch connector 16. When the distance is wider than 55 mm, install one end of the sealing steel ring 15. Then, turn the adjusting screw 1 counterclockwise to tighten the distance between the pipe connector 17 and the pipe switch connector 16 until the clamp 14 can be installed. After installing one end of the clamp 14, install the other end of the clamp 14 in the same way. Finally, loosen the adjusting screw 1, remove the fastening bolts 12 on the guide sleeve 3, the moving clamp 2, and the fixed clamp 4, and you can safely remove the disassembly and assembly tools to complete the entire installation operation.

[0036] Through the above-described embodiments, this utility model can safely and efficiently complete the disassembly and assembly of pipeline connection and disconnection connectors, significantly improving work efficiency and safety compared to existing technologies, while reducing operational difficulty and labor intensity.

[0037] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tool for assembling and disassembling pipeline connection / disconnection connectors, characterized in that, include: Fixed slips, used to clamp one end of the pipeline; The movable slip is used to clamp the other end of the pipeline; An adjusting screw connects the fixed clamp and the movable clamp. By rotating the adjusting screw, the movable clamp is driven to move relative to the fixed clamp, so as to open or tighten the two ends of the pipeline. The guiding mechanism is used to guide the movement direction of the movable slip and bear the weight of the tool.

2. The pipeline connection / disconnection connector assembly / disassembly tool according to claim 1, characterized in that, The guiding mechanism includes: Guide sleeves are fitted onto pipelines to support the weight of tools and determine the direction of movement; A guide slide connects the fixed latch and the movable latch, and is used to guide the movement of the movable latch.

3. The pipeline connection / disconnection connector assembly / disassembly tool according to claim 2, characterized in that, Also includes: The positioning bracket is connected to the fixing clip; The sliding bracket is connected to the movable latch; The two ends of the guide slide are respectively connected to the positioning bracket and the sliding bracket.

4. The pipeline connection / disconnection connector assembly / disassembly tool according to claim 1, characterized in that, Both the fixed clamp and the movable clamp are upper and lower semi-circular structures with conical teeth on the inner surface, and are clamped to the pipeline by fastening bolts.

5. The pipeline connection / disconnection connector assembly / disassembly tool according to claim 2, characterized in that, The guide sleeve is a structure consisting of two semi-circular rings, which are fastened to the pipeline by bolts.

6. The pipeline connection / disconnection connector assembly / disassembly tool according to claim 2, characterized in that, It also includes a height adjustment bracket, which is mounted on the guide slide bar and is used to support and adjust the height position of the pipeline connection connector.

7. The pipeline connection / disconnection connector assembly / disassembly tool according to claim 6, characterized in that, The height adjustment bracket includes an adjustment bracket support and an adjustment screw rod. The adjustment bracket support is mounted on the guide slide bar, and the adjustment screw rod is connected to the bottom of the adjustment bracket support. The height adjustment bracket is raised or lowered by rotating the adjustment screw rod.

8. The pipeline connection / disconnection connector assembly / disassembly tool according to claim 2, characterized in that, It also includes reinforcing ribs, which are disposed on the guide slide to improve the stability of the guide slide.

9. The pipeline connection / disconnection connector assembly / disassembly tool according to claim 1, characterized in that, The adjusting screw consists of two screws, which are respectively connected to both sides of the fixed clamp and the movable clamp.

10. The pipeline connection / disconnection connector assembly / disassembly tool according to claim 3, characterized in that, There are four guide slides, evenly distributed between the positioning bracket and the sliding bracket.

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