A kind of gas wellhead pipe butt joint auxiliary device

Abstract

The utility model discloses a kind of gas production wellhead pipeline butt joint auxiliary devices, including bottom plate, positioning clamping assembly is arranged in the middle inner side of bottom plate, lifting adjusting assembly is arranged on the upper end of bottom plate, lifting adjusting assembly includes lifting truss, two lifting trusses are connected with bottom plate by the electric hydraulic cylinder of symmetric setting at two sides of lower end, symmetric setting is slidably connected between two lifting trusses Guiding cross bar, two guiding cross bars are slidably connected with the one end of symmetric setting mobile side seat between two sides respectively, two mobile side seat outer side is connected with the lifting truss of corresponding setting by the electric hydraulic push rod of symmetric setting. The gas production wellhead pipeline butt joint auxiliary device, positioning clamping assembly realizes pipeline central positioning, the electric hydraulic cylinder of lifting adjusting assembly and electric hydraulic push rod accurately control height and horizontal displacement, cooperate with level and range finder real-time calibration, effectively guarantee pipeline butt joint coaxiality, avoid sealing washer misplacement, reduce interface leakage and subsequent disassembly and reinstallation work.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline docking, specifically to an auxiliary device for docking gas wellhead pipelines. Background Technology

[0002] In the field of oil and gas extraction, the gas wellhead serves as the connecting hub between the downhole gas reservoir and the surface gathering and transportation system. The quality and efficiency of its pipeline docking operation directly determine the safety and stability of subsequent gas extraction operations.

[0003] Existing docking operations mostly rely on manual adjustment of pipe positions using simple tools such as crowbars and jacks. However, manual adjustment is prone to misalignment, making it difficult to ensure the coaxiality of the docking ports, resulting in misaligned sealing gaskets and interface leaks. This necessitates repeated disassembly and reassembly, leading to low work efficiency. Furthermore, existing auxiliary tools are mostly designed with fixed sizes, lacking versatility. Multiple sets of tools need to be carried to adapt to different pipes, increasing construction costs and equipment handling burden. To address these issues, existing equipment needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary device for connecting gas wellhead pipelines, in order to solve the problems mentioned in the background art, which are that existing connection operations mostly rely on manual adjustment of pipeline positions using simple tools such as crowbars and jacks. However, manual adjustment is prone to deviation, making it difficult to ensure the coaxiality of the connection port, resulting in misalignment of sealing gaskets and interface leakage. This requires repeated disassembly and reassembly, resulting in low work efficiency. In addition, existing auxiliary tools are mostly designed with fixed sizes, have poor versatility, and require carrying multiple sets of tools to adapt to different pipelines, which increases construction costs and equipment handling burden.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for connecting gas wellhead pipelines, including a base plate. The base plate has a U-shaped structure, and symmetrical moving components are arranged on both sides of the lower end of the base plate. Anchor bolts are installed inside the anchor bolt holes at the four corners of the base plate. A positioning clamping component is arranged on the inner side of the middle of the base plate, and a lifting adjustment component is arranged on the upper end of the base plate, positioned directly above the positioning clamping component. The lifting adjustment component includes a lifting truss, an electric hydraulic cylinder, a guide crossbar, a moving side seat, and an electric hydraulic push rod. Two lifting trusses are symmetrically arranged, and the lower ends of the two lifting trusses are connected to the base plate via symmetrically arranged electric hydraulic cylinders. A guide crossbar is symmetrically arranged between the two lifting trusses, and each guide crossbar is slidably connected to one end of a symmetrically arranged moving side seat on both sides. The outer sides of the two moving side seats are connected to the corresponding lifting trusses via symmetrically arranged electric hydraulic push rods.

[0006] Preferably, a first level is provided in the middle of one side of the upper end of the base plate, and mounting grooves are symmetrically provided on both sides of the upper end of the base plate, with the positions of the mounting grooves corresponding one-to-one with the positions of the electric hydraulic cylinders.

[0007] Preferably, the movable component includes a threaded mounting base, a threaded rod, a base, and movable rollers. The threaded mounting base has threaded rods threadedly connected to both sides of its lower end, and the lower end of the threaded rods is threadedly connected to the corresponding side of the upper end of the base. Meanwhile, movable rollers are rotatably connected to both sides of the middle of the base.

[0008] Preferably, the positioning and clamping assembly includes a bidirectional motor, a ball screw, a ball nut seat, a positioning and clamping side seat, and an elastic rubber pad. The output ends on both sides of the bidirectional motor are respectively connected to the ball screw, and a ball nut seat is provided on each of the two ball screws. The bidirectional motor, the ball screw, and the ball nut seat form a bidirectional screw structure, and two bidirectional screw structures are symmetrically arranged. Positioning and clamping side seats are symmetrically arranged on both sides between the two bidirectional screw structures, and an elastic rubber pad is provided on the opposite side of the two positioning and clamping side seats.

[0009] Preferably, a second level is provided inside the middle of the upper end of the lifting truss, and lifting lugs are symmetrically provided on both sides of the upper end of the lifting truss.

[0010] Preferably, a clamping elastic pad is provided between the two movable side seats on opposite sides, and a protective sleeve is symmetrically provided on both sides of the clamping elastic pad on one side of the movable side seat, and a rangefinder is provided inside the protective sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The auxiliary device for connecting gas wellhead pipelines of this utility model realizes the centered positioning of the pipeline through the positioning clamping component, and the electric hydraulic cylinder and electric hydraulic push rod of the lifting adjustment component precisely control the height and horizontal displacement. With the real-time calibration of the level and rangefinder, the coaxiality of the pipeline connection is effectively guaranteed, the misalignment of the sealing gasket is avoided, and the leakage of the interface and subsequent disassembly and reassembly work are reduced.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] Figure 1 This is a frontal three-dimensional structural diagram of the present invention; Figure 2 This is a frontal three-dimensional structural diagram of the base plate and positioning clamping assembly of this utility model; Figure 3 This is a frontal three-dimensional structural diagram of the lifting and adjusting component of this utility model.

[0014] In the diagram: 1. Base plate; 101. First level; 102. Mounting slot; 2. Threaded mounting seat; 3. Threaded rod; 4. Base; 5. Moving roller; 6. Fixed anchor bolt; 7. Positioning and clamping assembly; 701. Bidirectional motor; 702. Ball screw; 703. Ball nut seat; 704. Positioning and clamping side seat; 705. Elastic rubber pad; 8. Lifting and adjusting assembly; 801. Lifting truss; 8011. Second level; 8012. Lifting lug; 802. Electro-hydraulic cylinder; 803. Guide crossbar; 804. Moving side seat; 805. Electro-hydraulic push rod; 806. Clamping elastic pad; 807. Protective sleeve; 808. Rangefinder. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3 This utility model provides a technical solution: an auxiliary device for connecting gas wellhead pipelines, based on... Figure 1 and Figure 2As shown, the base plate 1 has a U-shaped structure, and symmetrical moving components are arranged on both sides of the lower end of the base plate 1. The moving components include threaded mounting seats 2, threaded rods 3, bases 4, and moving rollers 5. Threaded rods 3 are threadedly connected to both sides of the lower end of the threaded mounting seats 2, and the lower ends of the threaded rods 3 are threadedly connected to the corresponding side of the upper end of the base 4. At the same time, moving rollers 5 are rotatably connected to both sides of the middle of the base 4. The height can be adjusted by rotating the threaded rods 3 to adapt to uneven ground and assist in adjusting the level of the device. Under the drive of the moving rollers 5, the entire device can be moved flexibly, reducing the burden of manual handling and adapting to different wellhead operation scenarios. At the same time, anchor bolts 6 are set in the anchor bolt holes opened at the four corners of the base plate 1. The anchor bolts 6 pass through the anchor bolt holes and are fixed to the wellhead ground, improving the stability of the device during use. A positioning clamping component 7 is set on the inner side of the middle of the base plate 1. The positioning clamping component 7 includes a bidirectional motor 701, a ball screw 702, a ball nut seat 703, and a positioning clamping side seat 7. The system includes a bidirectional motor 701 and a ball screw 702 connected to the output ends of the bidirectional motor 701. Each ball screw 702 has a ball nut seat 703. The bidirectional motor 701, ball screw 702, and ball nut seat 703 form a bidirectional screw structure. Two bidirectional screw structures are symmetrically arranged and controlled by the same controller. Positioning clamping side seats 704 are symmetrically arranged on both sides between the two bidirectional screw structures. Elastic rubber pads 705 are placed on opposite sides of the two positioning clamping side seats 704. The bidirectional motor 701 drives the two ball screws 702 to rotate synchronously, causing the ball nut seat 703 to move symmetrically with the positioning clamping side seats 704 to clamp the pipe, ensuring the pipe is centered. The elastic rubber pads 705 prevent damage to the pipe's outer wall during clamping and increase friction, improving clamping stability.

[0017] To further explain, a first level 101 is installed inside the middle of one side of the upper end of the base plate 1. The first level 101 detects the levelness of the base plate 1 in real time, avoiding pipe connection deviation due to device tilt, and laying the foundation for subsequent precise adjustment. In addition, mounting grooves 102 are symmetrically opened on both sides of the upper end of the base plate 1, and the positions of the mounting grooves 102 correspond one-to-one with the positions of the electric hydraulic cylinders 802, so as to position and install the electric hydraulic cylinders 802 to prevent them from shifting during operation and ensure the stable operation of the lifting and adjusting assembly 8.

[0018] according to Figure 1 and Figure 3As shown, a lifting adjustment assembly 8 is provided on the upper end of the base plate 1, and the lifting adjustment assembly 8 is located directly above the positioning and clamping assembly 7. The lifting adjustment assembly 8 includes a lifting truss 801, an electric hydraulic cylinder 802, a guide crossbar 803, a movable side seat 804, and an electric hydraulic push rod 805. Two lifting trusses 801 are symmetrically arranged, and the lower ends of the two lifting trusses 801 are connected to the base plate 1 through symmetrically arranged electric hydraulic cylinders 802. The electric hydraulic cylinders 802 drive the lifting trusses 801 to lift and lower, providing stable lifting power, accurately adjusting the vertical height of the pipeline, and adapting to different docking height requirements. Multiple electric hydraulic cylinders 802 are controlled by the same controller. A guide crossbar 803 is symmetrically arranged between the two lifting trusses 801, and the two guide crossbars 803 are slidably connected to one end of the symmetrically arranged movable side seats 804 on both sides. The two movable side seats 804 are symmetrically arranged front and back, and the guide crossbar 803 restricts the movement direction of the movable side seats 804 to ensure that they move along a horizontal straight line. The movable side seats 804 are designed to prevent lateral displacement when clamping the pipe. The two movable side seats 804 are connected to the corresponding lifting trusses 801 via symmetrically arranged electro-hydraulic push rods 805. The electro-hydraulic push rods 805 are model DT300 with a rated thrust of 30kN, providing stable thrust and precisely controlling the displacement of the movable side seats 804 to ensure coaxiality during docking. Multiple electro-hydraulic push rods 805 are controlled by the same controller. A clamping elastic pad 806 is located between opposite sides of each movable side seat 804. Protective sleeves 807 are symmetrically arranged on both sides of the clamping elastic pad 806 on one side of the movable side seat 804. A distance measuring instrument 808 is installed inside the protective sleeve 807 to measure the distance between the movable side seats 804 in real time, ensuring the docked pipe is positioned between the two lifting trusses 801, thus improving the accuracy of the docked pipe's alignment with the fixed lower pipe.

[0019] To further explain, a second level 8011 is installed inside the middle of the upper end of the lifting truss 801. The second level 8011 is used to detect the levelness of the lifting truss 801 to ensure that the pipeline remains level during the lifting process and avoids tilting that may affect the connection. In addition, lifting lugs 8012 are symmetrically arranged on both sides of the upper end of the lifting truss 801. The lifting lugs 8012 facilitate the movement of the device with the help of lifting equipment, making it suitable for large well openings or complex site operations.

[0020] In use, the device is pushed to the position directly above the wellhead docking point using the moving roller 5 of the moving component. Then, the height of the base 4 is adjusted by rotating the threaded rod 3, and the base plate 1 is leveled using the first level 101. Next, the fixing anchor 6 is inserted into the anchor hole of the base plate 1 and fixed to the ground to lock the device position. Simultaneously, the lower pipe is placed between the two positioning clamping side seats 704 of the positioning clamping component 7. The bidirectional motor 701 is started, driving the ball screw 702 to rotate, causing the ball nut seat 703 to move symmetrically along with the positioning clamping side seats 704. The pipe is clamped by the elastic rubber pad 705, completing the horizontal positioning of the lower pipe. Then, the docking pipe is placed into the lifting... Between the two movable side seats 804 of the adjusting component 8, the electric hydraulic push rod 805 is activated to push the movable side seat 804 to move horizontally along the guide crossbar 803, adjust the position of the docking pipe, and clamp and fix it to make the two pipe ends coaxially aligned, completing the preparation before docking. Then, the electric hydraulic cylinder 802 is activated to drive the lifting truss 801 to descend. Combined with the second level 8011, it is ensured that the lifting truss 801 and the docking pipe move smoothly until the two pipe end faces are in contact and docked. After docking, the positioning clamping side seat 704 and the movable side seat 804 are separated from the outside of the two pipes respectively, and then the device is lifted and removed by the lifting lug 8012.

[0021] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas wellhead pipeline docking auxiliary device, comprising a base plate (1), characterized in that: The base plate (1) has a U-shaped structure, and movable components are symmetrically arranged on the middle of the two sides of the lower end of the base plate (1). At the same time, anchor bolts (6) are installed in the anchor bolt holes at the four corners of the base plate (1). A positioning clamping component (7) is arranged on the inner side of the middle of the base plate (1), and a lifting adjustment component (8) is arranged on the upper end of the base plate (1). The lifting adjustment component (8) is located directly above the positioning clamping component (7). The lifting adjustment component (8) includes a lifting truss (801), an electric hydraulic cylinder (802), a guide crossbar (803), a movable side seat (804), and an electric... There are two symmetrically arranged lifting trusses (801) with hydraulic push rods (805) and two lifting trusses (801). The lower ends of the two lifting trusses (801) are connected to the base plate (1) through symmetrically arranged electric hydraulic cylinders (802). There are guide crossbars (803) symmetrically arranged between the two lifting trusses (801). The two guide crossbars (803) are slidably connected to one end of the symmetrically arranged movable side seats (804) on both sides. At the same time, the outer sides of the two movable side seats (804) are connected to the corresponding lifting trusses (801) through symmetrically arranged electric hydraulic push rods (805).

2. The auxiliary device for connecting gas wellhead pipelines as described in claim 1, characterized in that: The base plate (1) has a first level (101) installed in the middle of one side of the upper end, and mounting grooves (102) are symmetrically opened on both sides of the upper end of the base plate (1), and the position of the mounting groove (102) corresponds to the position of the electric hydraulic cylinder (802).

3. The auxiliary device for connecting gas wellhead pipelines as described in claim 1, characterized in that: The movable component includes a threaded mounting base (2), a threaded rod (3), a base (4), and movable rollers (5). The threaded mounting base (2) has threaded rods (3) on both sides of its lower end, and the lower end of the threaded rod (3) is threaded to the corresponding side of the upper end of the base (4). Meanwhile, movable rollers (5) are rotatably connected to both sides of the middle of the base (4).

4. The auxiliary device for connecting gas wellhead pipelines as described in claim 1, characterized in that: The positioning and clamping assembly (7) includes a bidirectional motor (701), a ball screw (702), a ball nut seat (703), a positioning and clamping side seat (704), and an elastic rubber pad (705). The output ends of the bidirectional motor (701) are respectively connected to the ball screw (702), and a ball nut seat (703) is provided on each of the two ball screws (702). The bidirectional motor (701), the ball screw (702), and the ball nut seat (703) form a bidirectional screw structure, and two bidirectional screw structures are symmetrically arranged. At the same time, positioning and clamping side seats (704) are symmetrically arranged on both sides between the two bidirectional screw structures. An elastic rubber pad (705) is provided on the opposite side of the two positioning and clamping side seats (704).

5. The auxiliary device for connecting gas wellhead pipelines as described in claim 1, characterized in that: The upper middle part of the lifting truss (801) is provided with a second level (8011), and the upper sides of the lifting truss (801) are symmetrically provided with lifting lugs (8012).

6. The auxiliary device for connecting gas wellhead pipelines as described in claim 1, characterized in that: A clamping elastic pad (806) is provided between the two movable side seats (804) on opposite sides, and a protective sleeve (807) is symmetrically provided on both sides of the movable side seat (804) on one side, and a rangefinder (808) is provided inside the protective sleeve (807).

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