Automatic quick assembling mechanism for plug valve

Abstract

The utility model belongs to the technical field of oil field workover rigs, and particularly relates to an automatic quick assembling mechanism for a plug valve, which is characterized by comprising a bracket, a folding hydraulic cylinder arranged at the upper part of the bracket, a swing arm hinged with the telescopic end of the folding hydraulic cylinder and the bracket, and a slide way hinged with the swing arm, the plug valve handle pressing plate is arranged at the upper end of the plug valve fixing seat, the clamping device is arranged at the lower end of the plug valve fixing seat, the lower end of the plug valve is connected with a plug valve connecting pipe, the upper ends of the plug valve fixing seat and the plug valve fixing seat integrally penetrate through a middle hole of the plug valve handle pressing plate, and the lower ends of the plug valve fixing seat and the plug valve connecting pipe are clamped by the clamping device. The automatic quick-mounting mechanism for the plug valve is simpler in overall structure and higher in reliability, the quick-mounting work of the plug valve is automatically completed, and the quick-mounting efficiency and safety are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oilfield workover rigs, and particularly relates to a plug valve automatic quick-installation mechanism. Background Technique

[0002] During the workover operation of minor repairs, when a well control emergency occurs, multiple workers are required to manually install a plug valve at the top tubing coupling. This method has a high labor intensity, and due to the high jet pressure of the wellhead fluid, the installation time is long and the efficiency is low, which may lead to the deterioration of the well control emergency accident; due to the high temperature, high pressure or toxic gas contained in the underground ejecta, there is a risk to personal safety. Therefore, manual installation of the plug valve has inevitable disadvantages such as low efficiency and potential safety hazards. Summary of the Invention

[0003] The purpose of the utility model is to provide a plug valve automatic quick-installation mechanism, which realizes the rapid installation, closing and opening of the plug valve, improves the efficiency and safety of the minor repair operation of oil wells, and reduces the labor intensity and potential safety risks of operators.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] The plug valve automatic quick-installation mechanism of the utility model is characterized in that it includes a bracket, a folding hydraulic cylinder arranged on the upper part of the bracket, a swing arm hinged to the telescopic end of the folding hydraulic cylinder and also hinged to the bracket, a slideway hinged to the swing arm, a plug valve fixing seat arranged in the slideway and slidably connected with the slideway, a plug valve handle pressing plate arranged at the upper end of the plug valve fixing seat, and a clamping device arranged at the lower end of the plug valve fixing seat.

[0006] A plug valve connecting pipe is connected to the lower end of the plug valve. The upper end of the whole of the two passes through the middle hole of the plug valve handle pressing plate, and the lower end is clamped by the clamping device.

[0007] A power hydraulic tong and tubing and a power slip are arranged below the plug valve connecting pipe.

[0008] The swing arm is a parallelogram mechanism, with one end hinged to the bracket and the other end hinged to the slideway.

[0009] The slideway is a square-hole slideway.

[0010] The plug valve fixing seat is controlled by a fixing seat moving hydraulic cylinder, and the plug valve fixing seat moves vertically up and down in the slideway.

[0011] The clamping device adopts a pneumatic clamping device or hydraulic jaws.

[0012] Both the folding hydraulic cylinder and the fixing seat moving hydraulic cylinder are controlled by a control system.

[0013] Advantages of the present utility model:

[0014] The automatic quick-installation mechanism of the plug valve of the present utility model has a simpler overall structure and higher reliability, automatically completes the quick-installation work of the plug valve, and improves the quick-installation efficiency and safety. Brief Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the present utility model.

[0016] Figure 2 It is a simplified diagram of the quick-installation process of the plug valve of the present utility model. Detailed Embodiment

[0017] The following further describes the detailed embodiment of the present utility model in conjunction with the drawings.

[0018] As Figure 1 、 2 shown, the automatic quick-installation mechanism of the plug valve of the present utility model is characterized in that it includes a bracket 1, a folding hydraulic cylinder 2 arranged on the upper part of the bracket 1, a swing arm 3 hinged to the telescopic end of the folding hydraulic cylinder 2 and also hinged to the bracket 1, a slideway 4 hinged to the swing arm 3, a plug valve fixing seat 5 arranged in the slideway 4 and slidably connected to the slideway 4, a plug valve handle pressing plate 6 arranged at the upper end of the plug valve fixing seat 5, and a clamping device 10 arranged at the lower end of the plug valve fixing seat 5.

[0019] A plug valve connecting pipe 8 is connected to the lower end of the plug valve 7, and the upper end of the two as a whole passes through the middle hole of the plug valve handle pressing plate 6, and the lower end is clamped by the clamping device 10.

[0020] A power hydraulic tong 11, an oil pipe 12 and a power slip are arranged below the plug valve connecting pipe 8.

[0021] The swing arm is a parallelogram mechanism, hinged to the bracket 1 at one end and hinged to the slideway 4 at the other end.

[0022] The slideway 4 is a square-hole slideway.

[0023] The plug valve fixing seat 5 is controlled by a fixing seat moving hydraulic cylinder 9, and the plug valve fixing seat 5 moves vertically up and down in the slideway 4.

[0024] The clamping device 10 adopts a pneumatic clamping device or a hydraulic jaw.

[0025] Both the folding hydraulic cylinder 2 and the fixing seat moving hydraulic cylinder 9 are controlled by a control system.

[0026] The automatic quick-installation mechanism of the plug valve of the present utility model is composed of a bracket 1, a folding hydraulic cylinder 2, a swing arm 3, a slideway 4, a plug valve fixing seat 5, a plug valve 7, a plug valve connecting pipe 8, a fixing seat moving hydraulic cylinder 9, a clamping device 10, a power hydraulic tong 11, a power slip 13, etc. The bracket 1 is used to fix the whole mechanism. The swing arm 3 is a parallelogram mechanism, one end of which is hinged to the bracket 1 and the other end is hinged to the slideway 4. The slideway 4 is a square-hole slideway. The swing arm 3 swings through the folding hydraulic cylinder 2 to align the plug valve 7 vertically with the pipe coupling of the oil pipe 12 and drive the plug valve 7 to form an operation space during the normal operation of the workover rig. The upper end of the plug valve fixing seat 5 is installed with a plug valve handle pressing plate 6, and the lower end is installed with a clamping device 10. The clamping device 10 adopts pneumatic or hydraulic jaws. The plug valve fixing seat 5 can move vertically up and down in the slideway 4 through the fixing seat moving hydraulic cylinder 9. The lower end of the plug valve 7 is connected to the plug valve connecting pipe 8. The whole upper end of the two passes through the middle hole of the plug valve handle pressing plate 6, and the lower end is clamped by the jaws of the clamping device 10.

[0027] The process of quickly installing the plug valve: During the operation of the automated workover rig, when a well control emergency is encountered, the control system is activated, the oil pipe 12 stops at the designated position, the power slip 13 is locked, the folding hydraulic cylinder 2 extends, the swing arm 3 swings to drive the movement of each accessory, so that the lower end of the plug valve connecting pipe 8 is vertically aligned with the pipe coupling of the oil pipe 12. The fixing seat moving hydraulic cylinder 9 extends until the lower end of the plug valve connecting pipe 8 is butted against the upper end of the pipe coupling of the oil pipe 12 and then stops. The power hydraulic tong 11 extends, the jaws of the clamping device 10 are separated, and the power slip 13 returns after completing the make-up work. The fixing seat moving hydraulic cylinder 9 continues to extend, driving the plug valve handle pressing plate 6 at the upper end of the plug valve fixing seat 5 to move downward, acting on the handle of the plug valve 7 to rotate the handle 90° to close the plug valve 7. The fixing seat moving hydraulic cylinder 9 retracts, separating the plug valve handle pressing plate 6 from the handle of the plug valve 7. Manually reset the handle of the plug valve 7 and connect the external output pipeline. After completion, the fixing seat moving hydraulic cylinder 9 moves downward, driving the plug valve handle pressing plate 6 to move downward, acting on the handle of the plug valve 7 to rotate the handle reversely 90° to open the plug valve 7, and the quick installation is completed, realizing automated operation. When the automated workover rig is working normally, the automatic quick-installation mechanism of the plug valve is in a folded state to ensure the operation space.

[0028] The automatic quick-installation mechanism of the plug valve of the present utility model has a simpler overall structure and higher reliability, and automatically completes the quick installation of the plug valve, improving the quick installation efficiency and safety.

Claims

1. An automatic plug valve installation mechanism, characterized in that: It includes a bracket, a folding hydraulic cylinder arranged on the upper part of the bracket, a swing arm hinged to the telescopic end of the folding hydraulic cylinder and hinged to the bracket, a slideway hinged to the swing arm, a plug valve fixing seat arranged in the slideway and slidably connected to the slideway, a plug valve handle pressure plate arranged at the upper end of the plug valve fixing seat, and a clamping device arranged at the lower end of the plug valve fixing seat. The lower end of the plug valve is connected to a plug valve connecting pipe, the upper ends of the two as a whole pass through the middle hole of the plug valve handle pressure plate, and the lower ends are clamped by the clamping device. A power hydraulic clamp, an oil pipe and a power slip are arranged below the plug valve connecting pipe.

2. The automatic plug valve installation mechanism according to claim 1 is characterized in that: The swing arm is a parallelogram mechanism, one end of which is hinged to the bracket and the other end of which is hinged to the slideway.

3. The automatic plug valve installation mechanism according to claim 1 is characterized in that: The slideway is a square hole slideway.

4. The automatic plug valve installation mechanism according to claim 1, characterized in that: The plug valve fixing seat is controlled by a fixing seat moving hydraulic cylinder, and the plug valve fixing seat moves vertically up and down in the slideway.

5. The automatic plug valve installation mechanism according to claim 1, characterized in that: The clamping device adopts a pneumatic clamping device or a hydraulic clamping claw.

6. The automatic plug valve installation mechanism according to claim 4, characterized in that: The folding hydraulic cylinder and the fixed seat moving hydraulic cylinder are both controlled by a control system.

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