Mechanical pipeline intelligent plugging device

Abstract

A mechanical intelligent pipeline plugging device comprises an anchoring plugging unit and a pipe cleaning unit, the anchoring plugging unit and the pipe cleaning unit are connected through a universal joint, the anchoring plugging unit comprises a front rolling wheel mechanism, a rear rolling wheel mechanism, a plugging mechanism, an anchoring mechanism and a speed reducer, and the anchoring mechanism is composed of a plurality of anchoring slips. The anchoring slips are evenly distributed on the periphery of the central axis of the anchoring plugging unit, the plugging mechanism is composed of a pressing disc, a rubber cup, a movable cone, a T-shaped sliding block, a fixed disc and a lead screw, the front end and the rear end of the pipe cleaning unit are provided with a cup assembly and an anti-collision head respectively, and a positioning tracking device is installed in the pipe cleaning unit. The problem that sealing is not tight due to pipeline ovality or welding seams can be effectively solved, the construction procedure of a lower air bag hole can be omitted through the double sealing leather cups, construction cost is reduced, construction safety is improved, safe and reliable zero-leakage plugging is achieved, and the double-sealing leather cup has the advantages of being reasonable in design, safe, reliable and reliable in sealing.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline maintenance tools, and in particular to a mechanical pipeline intelligent plugging device. Background Art

[0002] During the use of oil and gas pipelines, due to internal or external factors, the pipelines may be partially corroded, deformed or damaged, resulting in pipeline safety hazards. When repairing or replacing the hazardous section, pipeline plugging operations are required. At present, the disc plugging heads used in pipeline plugging operations have a relatively complex structure. In addition, due to the ovality of the pipeline or the weld, the plugging may not be tight. Not only do equal-diameter holes need to be opened on the pipeline, but the three-way pipe fittings, plugging knives and other equipment used in the construction are also expensive, and the knives are easily damaged during construction, which brings great trouble to the construction. Utility Model Content

[0003] The utility model provides a mechanical pipeline intelligent plugging device to solve the problems of inconvenient use and loose plugging in the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A mechanical pipeline intelligent plugging device comprises an anchoring plugging unit and a cleaning unit, which are connected by a universal joint, and the anchoring plugging unit comprises two front and rear rolling wheel mechanisms, a plugging mechanism, an anchoring mechanism and a reducer, and the two rolling wheel mechanisms are respectively fixed at the front and rear ends of the anchoring plugging unit, and each rolling wheel mechanism is composed of a plurality of rolling wheels, a rolling wheel fixing plate and a rolling wheel bracket, and the anchoring mechanism is composed of a plurality of anchoring slips, and the anchoring slips are evenly distributed around the central axis of the anchoring plugging unit, and the plugging mechanism is composed of a pressing plate, a rubber cup, a movable cone, a T-shaped slider, a fixing plate and a screw, and one end of the screw is connected to the pressing plate The movable cone is connected to the clamping plate, the thread direction of the lead screw is right-handed, and the other end of the lead screw is connected to the output shaft of the reducer. One end of the T-shaped slider is fixed on the fixed plate, and the other end of the T-shaped slider is slidably connected to the T-slot on the anchoring cava. A T-shaped guide rail is arranged on the taper surface of the movable cone, and the anchoring cava is slidably connected to the movable cone through the T-shaped guide rail. A limit block is arranged at the front end of the movable cone, and the limit block is fixed on the clamping plate. A shear nail is arranged between the movable cone and the clamping plate, two rubber cups are arranged on the front side of the movable cone, and a spacer ring is arranged between the two rubber cups. A cup assembly and an anti-collision head are respectively arranged at the front and rear ends of the cleaning unit, and a positioning and tracking device is installed inside the cleaning unit.

[0006] The rolling wheels of the rolling wheel mechanism are evenly distributed around the rolling wheel fixing plate through the rolling wheel bracket.

[0007] The protective shell of the reducer is connected to the fixing plate of the blocking mechanism.

[0008] The outer surface of the anchoring slip has a serrated structure.

[0009] The anchoring slip of the utility model device can move outward in the radial direction and generate a small axial force, so that the slip is tightly squeezed on the inner wall of the pipeline to form an anchoring. After anchoring, the rubber cup of the sealing mechanism expands radially under the squeeze of the axial force, so that the cup and the inner diameter of the pipeline are closely fitted to form a seal; the cleaning unit is connected to one end of the anchoring and sealing unit through a universal joint to provide traction for the anchoring and sealing unit. The cup assembly of the cleaning unit is used to support the cleaning unit. An anti-collision head is provided at the end of the cleaning unit, and a positioning device is installed inside to enable real-time positioning. A real-time positioning tracking device is provided inside the cleaning unit.

[0010] The utility model can effectively solve the problem of loose sealing caused by the ovality of the pipeline or the weld, and the double-pass sealing leather cup can save the construction process of the lower air bag hole, reduce the construction cost, improve the construction safety, and realize safe and reliable zero leakage sealing, and has the advantages of reasonable design, safety and reliability, and reliable sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is a schematic diagram of the cross-sectional assembly structure of the utility model;

[0013] Figure 2 It is a structural diagram of the anchoring slip of the utility model;

[0014] Figure 3 It is a structural diagram of the rolling wheel mechanism of the utility model;

[0015] Figure 4 It is a schematic diagram of the device of the utility model in an unanchored state;

[0016] Figure 5 It is a schematic diagram of the anchoring state of the device of the utility model;

[0017] Figure 6 It is a schematic diagram of the anchoring and blocking state of the device of the utility model.

[0018] In the figure, 100 is an anchoring and plugging unit, 101 is a clamping plate, 102 is a rubber cup, 103 is a spacer ring, 104 is a rubber cup, 105 is a movable cone, 106 is an anchoring slip, 107 is a T-shaped slider, 108 is a fixed plate, 109 is a rolling wheel, 110 is a rolling wheel bracket, 111 is a rolling wheel fixed plate, 112 is a lead screw, 113 is a shear pin, 114 is a limit block, 115 is a reducer, 116 is a protective shell, 200 is a cleaning unit, 201 is a cup assembly, 202 is a positioning and tracking device, 203 is an anti-collision head, and 300 is a universal joint. DETAILED DESCRIPTION

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a mechanical pipeline intelligent plugging device includes an anchoring plugging unit 100 and a cleaning unit 200, which are connected by a universal joint 300. The anchoring plugging unit 100 includes two front and rear rolling wheel mechanisms, a plugging mechanism, an anchoring mechanism and a reducer 115. The two rolling wheel mechanisms are respectively fixed at the front and rear ends of the anchoring plugging unit. Each rolling wheel mechanism is composed of a plurality of rolling wheels 109, a rolling wheel fixing plate 111 and a rolling wheel bracket 110. The anchoring mechanism is composed of a plurality of anchoring slips 106. The anchoring slips 106 are evenly distributed around the central axis of the anchoring plugging unit 100. The outer surface of the anchoring slip has a serrated structure. The plugging mechanism is composed of a compression plate 101, a rubber cup 102, a rubber cup 104, a movable cone 105, a T-shaped slider 107, a fixing plate 108 and a lead screw 112. One end of the lead screw 112 is connected to a compression plate 101, a rubber cup 102, a rubber cup 104, a movable cone 105, a T-shaped slider 107, a fixing plate 108 and a lead screw 112. The movable cone 105 is connected to the tightening plate 101, the thread rotation direction of the lead screw 112 is right-handed, and the other end of the lead screw 112 is connected to the output shaft of the reducer 115. One end of the T-shaped slider 107 is fixed on the fixed plate 108, and the other end of the T-shaped slider 107 is slidably connected to the T-slot on the anchoring cava 106. A T-shaped guide rail is arranged on the conical surface of the movable cone 105, and the anchoring cava 106 is slidably connected to the movable cone 105 through the T-shaped guide rail. A limit block 114 is arranged at the front end of the movable cone 105, and the limit block 114 is fixed on the tightening plate 101. A shear nail 113 is arranged between the movable cone 105 and the tightening plate 101, a rubber leather cup 102 and a rubber leather cup 104 are arranged on the front side of the movable cone, and a spacer ring 103 is arranged between the rubber leather cup 102 and the rubber leather cup 104. A leather cup assembly 201 and an anti-collision head 203 are respectively arranged at the front and rear ends of the cleaning unit 200, and a positioning and tracking device 202 is installed inside the cleaning unit. The rolling wheels 109 of the rolling wheel mechanism are evenly distributed around the rolling wheel fixing plate 111 through the rolling wheel bracket 110. The protective shell 116 of the speed reducer 115 is connected to the fixing plate 108 of the blocking mechanism.

[0020] When performing pipeline plugging operations, process pipe fittings are welded on the pipeline and holes are opened. The pipeline's built-in mechanical intelligent plugging device is pushed into the pipeline using a plugger. The shaft end of the reduction mechanism 115 of the anchored plugging unit is made to correspond to the position of the process hole welded on the pipeline by calculation. The special equipment is installed on the process hole pipe fitting, and the main shaft of the special equipment is connected to the shaft end of the reduction mechanism. The main shaft of the special equipment cooperates with the hole on the protective shell of the reduction mechanism, and the main shaft plays a positioning role.

[0021] By rotating the main shaft of the special equipment, the reducer 115 and the screw 112 are driven to rotate. By rotating the screw 112 clockwise, the clamping plate 101 moves axially toward the anchoring slip 106. Since the movable cone 105 and the clamping plate 101 are connected by the shear nail 113, the movable cone 105 moves axially toward the anchoring slip 106 at the same time. The cone surface between the anchoring slip 106 and the movable cone 105 is squeezed to make the anchoring slip 106 move radially. , and generate a small axial force, so that the anchoring slip 106 is tightly engaged with the inner wall of the pipeline to realize the anchoring of the plugging device, and then continue to rotate the screw 112 clockwise, and continue to move axially toward the anchoring slip 106 through the clamping plate 101, thereby cutting off the shear nail 113 between the movable cone 105 and the clamping plate 101, and the rubber cup 102 and the rubber cup 104 expand radially under the extrusion of the movable cone 105 and the clamping plate 101, sealing the flow direction of the medium in the pipeline.

Claims

1. Mechanical pipeline intelligent plugging device, characterized by It includes an anchoring and plugging unit and a cleaning unit, which are connected by a universal joint. The anchoring and plugging unit includes two front and rear rolling wheel mechanisms, a plugging mechanism, an anchoring mechanism and a reducer. The two rolling wheel mechanisms are respectively fixed at the front and rear ends of the anchoring and plugging unit. Each rolling wheel mechanism is composed of a number of rolling wheels, a rolling wheel fixing plate and a rolling wheel bracket. The anchoring mechanism is composed of a plurality of anchoring slips, which are evenly distributed around the central axis of the anchoring and plugging unit. The plugging mechanism is composed of a clamping plate, a rubber cup, a movable cone, a T-shaped slider, a fixing plate and a screw. One end of the screw is connected to the clamping plate. The thread direction is right-hand, the other end of the lead screw is connected to the output shaft of the reducer, one end of the T-shaped slider is fixed on the fixed plate, and the other end of the T-shaped slider is slidably connected to the T-slot on the anchoring cava, a T-shaped guide rail is arranged on the taper surface of the movable cone, the anchoring cava and the movable cone are slidably connected through the T-shaped guide rail, a limit block is arranged at the front end of the movable cone, the limit block is fixed on the clamping plate, a shear nail is arranged between the movable cone and the clamping plate, two rubber cups are arranged on the front side of the movable cone, a spacer ring is arranged between the two rubber cups, a cup assembly and an anti-collision head are arranged at the front and rear ends of the pipe cleaning unit respectively, and a positioning and tracking device is installed inside the pipe cleaning unit.

2. The mechanical pipeline intelligent plugging device according to claim 1 is characterized in that The rolling wheels of the rolling wheel mechanism are evenly distributed around the rolling wheel fixing plate through the rolling wheel bracket.

3. The mechanical pipeline intelligent plugging device according to claim 1 is characterized in that The protective shell of the reducer is connected to the fixing plate of the blocking mechanism.

4. The mechanical pipeline intelligent plugging device according to claim 1 is characterized in that The outer surface of the anchoring slip has a serrated structure.

Images