CN-122014950-A - Magnetic type intelligent pipeline plugging device, system and pipeline pressure repairing and pipe changing method

CN122014950ACN 122014950 ACN122014950 ACN 122014950ACN-122014950-A

Abstract

The invention relates to a magnetic type intelligent pipeline plugging device, a magnetic type intelligent pipeline plugging system and a pipeline under-pressure repairing and replacing method, and belongs to the field of pipeline maintenance. The magnetic type intelligent pipeline plugging device comprises a magnetic adsorption joint, a connecting joint, a plugging joint, a magnetic piece and a plugging air bag assembly, wherein the magnetic adsorption joint is provided with a drain hole capable of being opened or closed, the plugging joint is used for moving in a pipeline, the magnetic piece can magnetically attract and position the magnetic adsorption joint, and the plugging air bag assembly is arranged on the plugging joint. The magnetic adsorption joint is provided with an openable or closable drainage hole and is in position linkage with the magnetic part to realize medium drainage, pressure relief and speed reduction. The plugging air bag component is arranged on the plugging joint, and can expand to plug the pipeline after the device completes magnetic attraction positioning and stably stops.

Inventors

FAN LI
SU TAO
ZHANG YU
CAO GUANGGUI
WEI WEI
ZHENG GUANGYAO
ZHANG ZHONGJUN
ZHAO LIANYU

Assignees

广东派普莱恩科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260228

Claims (10)

1. The utility model provides a magnetism inhale formula pipeline intelligence plugging device which characterized in that, magnetism inhale formula pipeline intelligence plugging device include: the magnetic adsorption joint (1), wherein the magnetic adsorption joint (1) is provided with a drain hole (101) which can be opened or closed, and the magnetic adsorption joint (1) is used for moving in a pipeline; the connecting joint (2), one end of the connecting joint (2) is connected with the magnetic adsorption joint (1); The plugging joint (3) is connected with one end of the connecting joint (2) far away from the magnetic adsorption joint (1), and the plugging joint (3) is used for moving in a pipeline; The magnetic piece (4), the magnetic piece (4) can magnetically attract and position the magnetic absorption joint (1), the magnetic absorption joint (1) is provided with at least a first position and a second position, the first position is far away from the magnetic piece (4), the second position is adjacent to the magnetic piece (4), the drainage hole (101) is closed when the magnetic absorption joint (1) is positioned at the first position, the drainage hole (101) of the magnetic absorption joint (1) is opened when the magnetic absorption joint (1) moves from the first position to the second position, and the magnetic piece (4) is used for being arranged outside the pipeline; The plugging air bag assembly (5), and the plugging air bag assembly (5) is arranged on the plugging joint (3).
2. The intelligent plugging device for the magnetic attraction type pipeline according to claim 1, wherein the plugging section (3) comprises a mounting cylinder (31), a positioning assembly (32) and a first outer ring sealing assembly (33), the positioning assembly (32) is arranged on the mounting cylinder (31), the positioning assembly (32) at least has a storage state and a positioning state, the first outer ring sealing assembly (33) is sleeved on the mounting cylinder (31), the mounting cylinder (31) is connected with one end, far away from the magnetic attraction section (1), of the connecting section (2), and the plugging air bag assembly (5) is arranged on the plugging section (3).
3. The intelligent plugging device for the magnetic attraction type pipeline according to claim 2, wherein the positioning assembly (32) comprises a wedge-shaped clamping ring (321), a pushing motor (322) and slips (323), a guide rod (3111) is arranged on the installation cylinder (31), the wedge-shaped clamping ring (321) is slidably arranged on the guide rod (3111), the pushing motor (322) is arranged on the wedge-shaped clamping ring (321) and one end, away from the wedge-shaped clamping ring (321), of the pushing motor (322) abuts against the installation cylinder (31), the number of the slips (323) is multiple, the slips (323) are movably arranged on the wedge-shaped clamping ring (321), the slips (323) are sequentially arranged at intervals along the circumference of the wedge-shaped clamping ring (321), the slips (323) are located on one side, away from the pushing motor (322), of the wedge-shaped clamping ring (321), one end, away from the pushing motor (322), of the slips (323) abuts against the installation cylinder (31).
4. The intelligent plugging device for the magnetic pipeline according to claim 3, wherein, The slips (323) are magnetic attraction pieces, and the slips (323) are adsorbed on the wedge-shaped clamping ring (321); And/or the mounting cylinder (31) is provided with a first annular groove (301), the positioning assembly (32) is positioned at the first annular groove (301), the first annular groove (301) surrounds the mounting cylinder (31) and is positioned at the outer side of the mounting cylinder (31), the guide rod (3111) is positioned on one side wall of the first annular groove (301), one side of the pushing motor (322) away from the wedge-shaped clamping ring (321) is propped against the side wall provided with the guide rod (3111), and the slips (323) are propped against the other side wall of the first annular groove (301); And/or the mounting cylinder (31) is further provided with a second annular groove (302) and a third annular groove (303), the second annular groove (302) and the third annular groove (303) encircle the mounting cylinder (31) and are positioned outside the mounting cylinder (31), the positioning component (32) is positioned between the second annular groove (302) and the third annular groove (303), the first outer ring sealing component (33) comprises a first sealing piece component (331) and a second sealing piece component (332), the first sealing piece component (331) and the second sealing piece component (332) encircle the mounting cylinder (31), and the first sealing piece component (331) and the second sealing piece component (332) are respectively positioned at the second annular groove (302) and the third annular groove (303); and/or the mounting cylinder (31) is further provided with a fourth annular groove (304), the fourth annular groove (304) surrounds the mounting cylinder (31) and is positioned outside the mounting cylinder (31), the first outer ring sealing assembly (33) comprises a sealing ring sleeve (333), and the sealing ring sleeve (333) surrounds the mounting cylinder (31) and is positioned at the fourth annular groove (304).
5. The magnetic type intelligent pipeline plugging device according to claim 2, wherein the plugging section (3) further comprises a first pressure sensor (34) and a first driving motor (35), a plurality of first mounting grooves are formed in the mounting cylinder (31) at intervals, the first pressure sensor (34) and the first driving motor (35) are multiple, the first pressure sensors (34) are respectively arranged at the first mounting grooves at intervals, one ends of the first pressure sensors (34) away from the mounting cylinder (31) are used for propping against the pipeline wall, the first driving motor (35) are respectively arranged at the first mounting grooves at intervals, and one ends of the first driving motor (35) away from the mounting cylinder (31) are used for propping against the pipeline wall.
6. The magnetic suction type intelligent pipeline plugging device according to claim 1, wherein the plugging air bag assembly (5) comprises an air bag support (51), an air bag (52), a valve body assembly (53) and a compressed air tank assembly (54), the air bag support (51) is arranged on the plugging joint (2), the air bag (52) is arranged on the air bag support (51), the valve body assembly (53) is arranged on the air bag (52), the compressed air tank assembly (54) is arranged on the air bag support (51), the compressed air tank assembly (54), the valve body assembly (53) and the air bag (52) are sequentially connected, and the valve body assembly (53) can enable the air bag (52) to be communicated with or disconnected from the air tank assembly (54).
7. The magnetic suction type intelligent pipeline plugging device according to claim 6, wherein the valve body assembly (53) is a three-way valve, and further comprises a one-way valve (55), the three-way valve is respectively communicated with the air bag (52), the compressed air tank assembly (54) and the one-way valve (55), and the three-way valve can enable the compressed air tank assembly (54) to be communicated with the air bag (52) or the three-way valve can enable the air bag (52) to be communicated with the one-way valve (55).
8. The magnetic attraction type intelligent pipeline plugging device according to claim 1, wherein the magnetic attraction type intelligent pipeline plugging device is characterized in that the magnetic attraction type intelligent pipeline plugging device comprises a cylinder assembly (11), a steel brush assembly (12), a valve assembly (13), a second outer ring sealing assembly (14) and a magnetic force induction device, the steel brush assembly (12) is sleeved on the cylinder assembly (11), the second outer ring sealing assembly (14) is sleeved on the cylinder assembly (11), the cylinder assembly (11) is provided with a drainage hole (101), the valve assembly (13) is arranged on the cylinder assembly (11), the valve assembly (13) can open or close the drainage hole (101), the magnetic force induction device is arranged on the cylinder assembly (11) or the steel brush assembly (12), and the magnetic force induction device is used for inducing a magnetic field of the magnetic part (4), and the cylinder assembly (11) is connected with the connecting joint (2).
9. The utility model provides a magnetism is inhaled formula pipeline intelligence shutoff system which characterized in that, magnetism is inhaled formula pipeline intelligence shutoff system includes: A magnetic intelligent plugging device for a pipeline according to any one of claims 1 to 8; The intelligent magnetic pipeline plugging device comprises a pipeline (200), wherein the pipeline (200) is provided with a flow channel, and the intelligent magnetic pipeline plugging device is positioned in the pipeline (200) and can move or be fixed in the pipeline (200); the magnetic piece (4) is arranged on the pipeline (200); and the controller is used for sending control information to the plugging air bag assembly (5).
10. The method for repairing and replacing the pipe under pressure of the pipeline is applied to the intelligent magnetic-attraction type pipeline plugging system as claimed in claim 9, and is characterized by comprising the following steps: defining an area of the pipe (200) to be replaced, and marking the area as a replacement area; The upstream and the downstream of the replacement area are respectively provided with a bypass branch pipe hole and communicated with each other through a branch pipe; a magnetic part (4) is arranged at the downstream of the replacement area, the magnetic adsorption joint (1) is placed in the pipeline (200), the magnetic adsorption joint (1) is driven to move by fluid in the pipeline (200), the magnetic adsorption joint (1) drives the plugging joint (3) and the plugging air bag component (5) to move to the downstream of the replacement area in the pipeline (200), when the magnetic adsorption joint (1) senses the magnetic part (4), a drainage hole (101) is opened, and the magnetic adsorption joint (1) is decelerated and is fixed in the pipeline (200) by the magnetic part (4); A magnetic part (4) is arranged at the upstream of the replacement area, the other magnetic adsorption joint (1) is placed in the replacement area, the magnetic adsorption joint (1) is driven to move by fluid in the pipeline (200), the magnetic adsorption joint (1) drives the plugging joint (3) and the plugging air bag component (5) to move to the upstream of the replacement area in the pipeline (200), when the magnetic adsorption joint (1) senses the magnetic part (4), the drainage hole (101) is opened, and the magnetic adsorption joint (1) is decelerated and is fixed in the pipeline (200) by the magnetic part (4); Opening a replacement area of the plugging pipeline (200) by using a plugging air bag assembly (5) in the upstream area and the downstream area; Wherein the upstream magnetic element (4) and the downstream magnetic element (4) are located inside the upstream and downstream bypass manifold holes.

Description

Magnetic type intelligent pipeline plugging device, system and pipeline pressure repairing and pipe changing method Technical Field The invention relates to the field of pipeline maintenance, in particular to a magnetic type intelligent pipeline plugging device, a magnetic type intelligent pipeline plugging system and a pipeline pressurized repairing and replacing method. Background The long-distance pipeline is often broken due to serious corrosion, deformation and other defects during service, so that subsequent operations such as pipe section replacement, device adding, split-distance transformation, other major maintenance and the like can be performed. In this case, it is necessary to weld bypass branch pipes on both sides of the pipe section to be repaired ① to allow the medium to flow through the bypass branch pipes temporarily, the size of the bypass branch pipes is adjusted according to the operation condition of the pipe, if the amount of the transportation can be reduced during the repair of the pipe, the bypass branch pipes can be smaller, ② then perform the pressurized plugging operation on both ends of the pipe section to be repaired, punch holes in the pipe, plug plugs or plug bags into the holes to block the medium flow, the required plug holes are larger due to the larger size of the plug plugs or plug bags, ③ cuts off the defective pipe and welds new pipe, ④ cuts off the bypass branch pipes to be preserved again and backfilled. This will permanently leave two large sized pressurized caps on the tubing. The existing pipeline pressurized plugging technology needs to permanently leave two pressurized plugging caps with larger sizes on the pipeline, the caps protrude out of the pipeline body, the corrosion difficulty is high, the damage possibility of the subsequent corrosion-resistant layer is higher than that of the pipeline body, and if the caps generate defects such as corrosion, mechanical damage and the like, the internal detection cannot be detected. This brings a large potential hazard to the pipeline. Disclosure of Invention Based on the problems, the problems that the under-pressure plugging cap is corroded, mechanically damaged and the like and the internal detection cannot be detected are needed to be overcome, and the magnetic type intelligent plugging device and system for the pipeline and the pipeline under-pressure repairing and replacing method are provided. A magnetic intelligent plugging device for a pipeline, comprising: the magnetic adsorption joint is provided with a drain hole which can be opened or closed, and the magnetic adsorption joint is used for moving in the pipeline; One end of the connecting joint is connected with the magnetic adsorption joint; the plugging joint is connected with one end, far away from the magnetic adsorption joint, of the connecting joint and is used for moving in a pipeline; The magnetic piece can magnetically attract and position the magnetic adsorption joint, the magnetic adsorption joint at least has a first position and a second position, the first position is far away from the magnetic piece, the second position is adjacent to the magnetic piece, the drainage hole is closed when the magnetic adsorption joint is positioned at the first position, the drainage hole of the magnetic adsorption joint is opened when the magnetic adsorption joint moves from the first position to the second position, and the magnetic piece is used for being arranged outside the pipeline; The plugging air bag assembly is arranged on the plugging joint. The magnetic type intelligent pipeline plugging device disclosed by the application adopts the three-section split arrangement of the magnetic adsorption joint, the connecting joint and the plugging joint, has definite functions of all parts and simple structure, is convenient to process, assemble and maintain and replace in the later period, can ensure that the whole device has enough structural strength and coaxiality, ensures that the device moves more stably in a pipeline, and reduces the problems of clamping stagnation, deflection and the like. The magnetic piece arranged outside the pipeline is matched with the magnetic adsorption joint inside the pipeline, so that non-contact magnetic attraction positioning is realized, complex positioning, power supply and communication structures are not required to be arranged in the pipeline, the influence of signal shielding of the metal wall of the pipeline is avoided, positioning response is rapid, the position is accurate, and the magnetic attraction type pipeline is suitable for various pipeline working conditions such as buried ground, long distance and sealing. The magnetic adsorption joint is provided with an openable or closable drainage hole and is linked with the magnetic part to form a position, when the magnetic adsorption joint is positioned at a first position far away from the magnetic part, the drainage hole is kept closed, the device can stably move fo