Cleaning equipment and cleaning method for oil field oil pipeline

Abstract

The present invention provides a cleaning device and a cleaning method for oil field oil pipelines, belonging to the technical field of pipeline cleaning devices. It is aimed at the shortcomings of the existing leather cup cleaners during use. It includes: a fixed tube; a leather cup, which has a plurality of leather cups distributed in a straight line and are all fixedly connected to the outer side of the fixed tube; a cleaning shell, which is fixedly connected to the outer side of the fixed tube, and the cleaning shell is located between two leather cups; a movable sleeve, which is slidably connected to the fixed tube, and the movable sleeve and the cleaning shell are hinged together with circumferentially uniformly distributed connecting rods. The present invention cleans the impurities accumulated on the inner wall of the oil pipeline when the leather cup is deformed by the cleaning shell, and at the same time detects the part of the oil pipeline where the leather cup is deformed, so as to avoid the impurities in the oil pipeline being too much accumulated and causing the leather cup to deform, which causes the leather cup to reduce the cleaning effect of the impurities in the oil pipeline, resulting in incomplete cleaning of the impurities in the oil pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning devices, and in particular to cleaning equipment and a cleaning method for oil field oil pipelines. Background Art

[0002] After long-term use, the solid particles, wax, silt, etc. contained in the oil will accumulate on the inner wall of the pipeline to form a sediment layer, which will cause the effective flow area of ​​the pipeline to decrease or even block the pipeline, affecting the oil transportation efficiency. Therefore, the oil pipeline needs to be cleaned regularly to ensure its smooth flow.

[0003] The leather cup pipe cleaner is widely used in the cleaning of oil pipelines due to its high efficiency, simple operation, low cost and wide application range. It relies on the gas pressure to move along the inner wall of the oil pipeline. During the movement, it scrapes the impurities attached to the inner wall of the pipeline and brings them to the outside of the oil pipeline. However, after long-term use, the side wall of the oil pipeline will be concave due to various reasons, resulting in a reduction in flow area. When the leather cup pipe cleaner encounters a concave part, it will be intercepted and unable to continue moving, resulting in an increase in the pressure difference on both sides, affecting the stability of the pipeline. To solve this problem, the leather cup of the existing leather cup pipe cleaner is produced with elastic deformable materials, so that the pipe cleaner can deform and pass through when it contacts the concave part of the pipeline. However, if the pipeline is not concave, if there are too many impurities accumulated in a certain part of the pipeline and it is too firm, the leather cup will still deform in that part, thereby reducing the cleaning effect of the pipeline. Summary of the invention

[0004] In order to overcome the shortcomings of the existing leather cup pipe cleaner during use, the present invention provides a cleaning device and a cleaning method for oil field oil pipelines.

[0005] The technical implementation scheme of the present invention is: a cleaning device for oil field oil pipeline, comprising:

[0006] Fixed pipe;

[0007] A plurality of leather cups are linearly distributed and fixed to the outer side of the fixed tube;

[0008] A cleaning shell, fixedly connected to the outer side of the fixed tube, and the cleaning shell is located between the two leather cups;

[0009] A movable sleeve is slidably connected to the fixed pipe, and the movable sleeve and the cleaning shell are hinged together with connecting rods evenly distributed in the circumferential direction;

[0010] A trigger assembly is arranged on the fixing tube, and the trigger assembly is used to change the shape of the cleaning shell.

[0011] More preferably, a curved portion is provided on a side of the cleaning shell away from the fixed pipe.

[0012] More preferably, the trigger component comprises:

[0013] A liquid capsule is fixedly connected to one side of the fixed tube, the liquid capsule is located inside the adjacent leather cup, and the liquid capsule is squeezed and matched with the adjacent leather cup;

[0014] A liquid storage tube, fixedly connected to the interior of the fixed tube via a connecting piece;

[0015] A hose, fixedly connected to and communicated with the liquid storage tube, the hose is fixedly connected to and communicated with the liquid bag, a fixing piece is fixedly connected in the hose, the fixing piece is provided with a first liquid injection hole and a second liquid injection hole, and a one-way valve is provided in the first liquid injection hole and the second liquid injection hole;

[0016] A piston rod is slidably connected in the liquid storage tube, and the piston rod is fixedly connected to the movable sleeve;

[0017] A push plate, slidably connected to the liquid storage tube, the push plate is located on a side of the piston rod away from the movable sleeve;

[0018] The first elastic member is arranged between the push plate and the liquid storage tube, and the first elastic member is located at a side of the push plate away from the piston rod.

[0019] More preferably, the cleaning shell is made of an elastic deformable material, and the elastic coefficient of the cleaning shell is smaller than the elastic coefficient of the leather cup, and the liquid capsule is made of an elastic deformable material.

[0020] More preferably, it also includes:

[0021] A cleaning mechanism is provided on the fixed pipe and is used to clean the impurities remaining on the inner wall of the oil pipeline. The cleaning mechanism comprises:

[0022] A connecting ring, rotatably connected to the fixed pipe;

[0023] The liquid storage shell has a plurality of evenly distributed circumferential parts, all of which are fixedly connected to the outer side of the connecting ring. The interior of the liquid storage shell is slidably connected to a movable shell, and the interior of the movable shell is slidably connected to a fixed column, and the fixed column is located on a side adjacent to the outer side of the movable shell and fixedly connected to a cleaning brush;

[0024] The third elastic members, the number of which is the same as the number of the movable shells, are respectively fixed to the adjacent movable shells and the adjacent fixed columns;

[0025] The rotating assembly is arranged on the fixed tube, and the rotating assembly is used to change the position of the cleaning brush.

[0026] More preferably, the rotating assembly comprises:

[0027] A first connecting shell, slidably connected to a side of the fixing pipe close to the connecting ring;

[0028] A fixed shell, fixedly connected to the interior of the first connecting shell through a connecting piece;

[0029] A rotating shaft is rotatably connected in the fixed shell, a spline shaft that matches the rotating shaft spline is fixedly connected to a side of the connecting ring close to the fixed shell, and the rotating shaft is provided with a limiting groove;

[0030] The driving ring is slidably connected to the interior of the fixed shell, the driving ring is slidably connected to the rotating shaft, and the driving ring is inlaid with a freely rolling rolling ball, which slides in the limiting groove of the rotating shaft.

[0031] More preferably, the rotation angle of the connecting ring is less than 360° divided by the specific number of the liquid storage shells, and the limit groove on the rotating shaft is arc-shaped, and the angle of the central angle corresponding to the projection of the limit groove on the rotating shaft on the connecting ring is equal to the rotation angle of the connecting ring.

[0032] More preferably, the rotating assembly further comprises:

[0033] An air gathering shell is fixedly connected to the inside of the first connecting shell, the air gathering shell is fixedly connected to and communicated with symmetrically distributed connecting pipes, the fixed shell is provided with symmetrically distributed air inlet holes and symmetrically distributed air outlet holes, and the connecting pipes are communicated with adjacent air inlet holes on the fixed shell;

[0034] The movable columns have two symmetrically distributed ones and are respectively slidably connected to one side of the wind gathering shell;

[0035] The blocking blocks are symmetrically distributed and fixed to adjacent movable columns respectively. The blocking blocks are matched with adjacent air inlet holes on the fixed shell for blocking. The blocking blocks are pressed and matched with the driving ring. The blocking blocks are slidably matched with adjacent connecting pipes.

[0036] A two-way telescopic rod, rotatably connected to a side of the first connecting shell close to the wind gathering shell, and two telescopic ends of the two-way telescopic rod are respectively rotatably connected to the adjacent moving columns;

[0037] The U-shaped fixing frame has two symmetrically distributed ones, both of which are fixed to one side of the first connecting shell close to the wind gathering shell. The U-shaped fixing frame is rotatably connected to a second elastic member, and the second elastic member is fixed to the adjacent moving column.

[0038] More preferably, it also includes:

[0039] A second connecting shell is fixedly connected to a side of the fixed pipe close to the first connecting shell, the first connecting shell slides in the second connecting shell, and the liquid storage shells uniformly distributed in the circumference are all connected to the second connecting shell through a hose;

[0040] The fourth elastic member is fixedly connected between the second connecting shell and the first connecting shell.

[0041] A method for cleaning an oil field oil pipeline, based on the above-mentioned cleaning device for an oil field oil pipeline, comprises the following steps:

[0042] S1: Put the fixed pipe into the oil pipeline to be cleaned, and then deliver gas into the oil pipeline. When the gas pressure in the oil pipeline can drive the fixed pipe to move, the gas drives the fixed pipe to move along the oil pipeline, and the leather cup cleans out the impurities in the oil pipeline;

[0043] S2: During the movement of the fixed pipe, the gas blows the driving ring to reciprocate, and the driving ring drives the connecting ring to reciprocate synchronously during the movement, thereby driving the cleaning brush to reciprocate and clean the impurities remaining on the inner wall of the oil pipeline;

[0044] S3: During the cleaning process of the oil pipeline, when the leather cup is blocked and deformed, the cleaning shell cleans the impurities inside it and detects the cause of the leather cup deformation to determine whether the oil pipeline is deformed;

[0045] S4: When the cleaning shell cleans the impurities in the oil pipeline, the resistance to the movement of the fixed pipe increases synchronously, so that the first connecting shell and the connecting ring move relative to each other, thereby increasing the squeezing force of the cleaning brush on the inner wall of the oil pipeline;

[0046] S5: After the oil pipeline to be cleaned is completely cleaned, the fixed pipe is taken out from the oil pipeline, and the fixed pipe is maintained and cleaned for subsequent use.

[0047] The present invention has the following advantages: when the leather cup is deformed, the cleaning shell cleans the impurities accumulated on the inner wall of the oil pipe, and at the same time detects the position in the oil pipe where the leather cup is deformed, thereby avoiding excessive accumulation of impurities in the oil pipe that causes the leather cup to deform, resulting in a decrease in the cleaning effect of the leather cup on the impurities in the oil pipe, resulting in incomplete cleaning of the impurities in the oil pipe.

[0048] The cleaning shell drives the movable sleeve to move relative to the fixed pipe, so that the cleaning shell shrinks due to the tension, so that the fixed pipe can pass through the deformed part in the oil pipeline normally, ensuring that the pressure difference on both sides of the fixed pipe will not continue to increase, preventing the fixed pipe from being damaged, ensuring the normal use of the fixed pipe, and maintaining the stability of the oil pipeline and the subsequent normal operation.

[0049] By guiding part of the gas into the wind gathering shell, the gas drives the connecting ring to rotate back and forth, thereby driving the cleaning brush to swing back and forth, and the cleaning brush cleans the impurities remaining on the inner wall of the oil pipeline, further reducing the residual amount of impurities on the inner wall of the oil pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0051] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixing tube and the leather cup of the present invention;

[0052] Figure 3 It is a three-dimensional structural cross-sectional view of the leather cup of the present invention;

[0053] Figure 4 It is a three-dimensional structural cross-sectional view of the liquid storage tube of the present invention;

[0054] Figure 5 It is a schematic diagram of the three-dimensional structure of the first liquid injection hole and the second liquid injection hole of the present invention;

[0055] Figure 6 It is a three-dimensional structural cross-sectional view of the first connecting shell of the present invention;

[0056] Figure 7 It is a three-dimensional structural cross-sectional view of the liquid storage shell and the movable shell of the present invention;

[0057] Figure 8 It is a schematic diagram of the three-dimensional structure of the rotating shaft and the driving ring of the present invention;

[0058] Fig. 9 It is a three-dimensional structural cross-sectional view of the fixed shell and the wind gathering shell of the present invention;

[0059] Fig.10 It is an exploded view of the three-dimensional structure of the fixed shell and the blocking block of the present invention.

[0060] The meanings of the reference numerals in the figure are as follows: 1: oil pipeline, 2: fixed pipe, 3: leather cup, 4: cleaning shell, 5: movable sleeve, 6: connecting rod, 7: liquid bag, 8: liquid storage tube, 81: hose, 82: fixing part, 821: first liquid injection hole, 822: second liquid injection hole, 9: piston rod, 91: push plate, 92: first elastic part, 10: connecting ring, 11: first connecting shell, 12: fixed shell, 13: rotating shaft, 14: driving ring, 15: wind gathering shell, 151: connecting pipe, 16: movable column, 17: blocking block, 18: two-way telescopic rod, 181: U-shaped fixing frame, 19: second elastic part, 20: liquid storage shell, 21: movable shell, 22: fixing column, 23: third elastic part, 24: second connecting shell, 25: fourth elastic part. DETAILED DESCRIPTION

[0061] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0062] Embodiment 1: A cleaning device for oil field oil pipeline, such as Figure 1-Figure 4 As shown, it includes: a fixed tube 2; a plurality of leather cups 3 distributed in a straight line, all of which are fixedly connected to the outer side of the fixed tube 2; a cleaning shell 4, fixedly connected to the outer side of the fixed tube 2, and the cleaning shell 4 is located between two leather cups 3; a movable sleeve 5, slidably connected to the fixed tube 2, and the movable sleeve 5 and the cleaning shell 4 are hinged together with a circumferentially uniformly distributed connecting rod 6; a trigger assembly, arranged on the fixed tube 2, and the trigger assembly is used to change the shape of the cleaning shell 4.

[0063] In the above scheme, the specific numbers of leather cups 3, cleaning shells 4 and movable sleeves 5 can be specifically selected by the staff. The figure and the text are both described by taking two leather cups 3 as an example. The distance between the two leather cups 3 can also be specifically adjusted by the staff, and the moving direction of the fixed tube 2 in the oil pipeline 1 is from left to right, so the recessed parts of the two leather cups 3 are both located on the left side; the figure and the text are both described by taking one cleaning shell 4 and one movable sleeve 5 as an example. The cleaning shell 4 and the movable sleeve 5 are both located between the two leather cups 3. Initially, the cleaning shell 4 is in a contracted state due to the pulling force of the movable sleeve 5 and the connecting rod 6, and the cleaning shell 4 is closer to the leather cup 3 on the right side; the specific number of connecting rods 6 can also be specifically selected by the staff, but the connecting rods 6 need to be arranged equidistantly around the fixed tube 2 to facilitate uniform deformation of the cleaning shell 4.

[0064] Further, such as Figure 4 As shown, a curved portion is provided on the side of the cleaning shell 4 away from the fixed pipe 2, and the curved portion of the cleaning shell 4 away from the fixed pipe 2 is squeezed and fitted with the oil pipeline 1, and the connection between the connecting rod 6 and the cleaning shell 4 is located on the left side of the curved portion of the cleaning shell 4, and the curved portion of the cleaning shell 4 is used to scrape off impurities attached to the inner wall of the oil pipeline 1.

[0065] When the device is needed to clean the oil pipeline 1, first put the device into the oil pipeline 1, and then introduce gas into the oil pipeline 1, so that the gas pressure on the left side of the device is gradually greater than the gas pressure on the right side, and the gas pressure difference on both sides pushes the device to move to the right. During the movement of the device, the leather cup 3 on the right side scrapes and cleans the impurities in the oil pipeline 1, and isolates the cleaned impurities on the right side of the leather cup 3 on the right side. At the same time, during the movement, the leather cup 3 on the left side scrapes the impurities remaining on the inner wall of the oil pipeline 1 again to reduce the impurities remaining on the inner wall of the oil pipeline 1.

[0066] During the process of cleaning impurities, if a certain part of the oil pipeline 1 is squeezed and becomes concave or the impurities accumulated in a certain part inside the oil pipeline 1 are too much and too dense, the inner diameter of the oil pipeline 1 at this part is reduced, causing the resistance encountered by the right leather cup 3 when passing through to increase. In the process of the right leather cup 3 passing through this part, the right leather cup 3 is squeezed and bends inward, and at the same time drives the trigger component to work, so that the movable sleeve 5 moves to the right, and then drives the left part of the circumferentially evenly distributed connecting rod 6 to move to the right synchronously, reducing the pulling force on the cleaning shell 4, so that the cleaning shell 4 gradually opens under the action of its own elastic force until the deformation of the right leather cup 3 reaches a certain degree, that is, after the movable sleeve 5 moves a certain distance to the right, the cleaning shell 4 is fully opened, at this time, the side of the curved part of the cleaning shell 4 away from the fixed tube 2 contacts the inner wall of the oil pipeline 1, and at this time, the cleaning shell 4 does not contact the part of the oil pipeline 1 that causes the right leather cup 3 to deform.

[0067] After the above-mentioned cleaning shell 4 is fully opened, in the process of the device continuing to move to the right, the impurities remaining on the inner wall of the oil pipe 1 are scraped off by the curved part of the cleaning shell 4, further reducing the residual amount of impurities on the inner wall of the oil pipe 1, until the cleaning shell 4 moves to the right and contacts the part of the oil pipe 1 that causes the right leather cup 3 to deform. If the part is accumulated impurities, the impurities attached to the part are scraped off by the cleaning shell 4 and move to the right with the device. If the part is the deformation part of the oil pipe 1, the part intercepts the cleaning shell 4, making it impossible for the device to move to the right normally. At the same time, the pressure of the gas on the left side of the device continues to increase (the difference in gas pressure on the left and right sides of the device increases synchronously), until the pressure of the gas on the left side increases to a certain value, the trigger component works again, and the cleaning shell 4 is retracted, so that the device can pass through the part normally, avoiding the continuous increase in the pressure difference between the left and right sides of the device, causing damage to the device, affecting the normal use of the device, and affecting the stability of the oil pipe 1, affecting the subsequent normal use of the oil pipe 1.

[0068] After the cleaning shell 4 is fully opened and the device continues to move to the right, when the leather cup 3 on the right side passes the position that causes it to deform, the leather cup 3 is no longer subjected to the squeezing force, so the leather cup 3 is reset to the initial state under the action of its own elastic force, and at the same time, the leather cup 3 drives the trigger assembly to work, so that the movable sleeve 5 is reset to the left, and then the cleaning shell 4 is retracted again, reducing the resistance encountered by the device during the movement, so that the device can move normally, until the oil pipeline 1 that needs to be cleaned is cleaned by the device, and then the staff cleans and maintains the device in preparation for the subsequent use of the device to clean other oil pipelines 1.

[0069] After the leather cup 3 on the right side passes the part that causes it to deform, if the part is the accumulated impurities, some of the impurities have been cleaned by the cleaning shell 4, and the remaining impurities are small in volume. Therefore, under the action of the leather cup 3 on the left side, the remaining impurities can be cleaned.

[0070] Further, such as Figure 3-Figure 5 As shown, the trigger assembly includes: a liquid capsule 7, fixedly connected to the right side of the fixed tube 2, the liquid capsule 7 is located inside the right leather cup 3, and the liquid capsule 7 is squeezed and matched with the right leather cup 3; a liquid storage tube 8, fixedly connected to the inside of the fixed tube 2 through a connecting piece; a hose 81, fixedly connected and connected to the liquid storage tube 8, the hose 81 is fixedly connected and connected to the liquid capsule 7, a fixing piece 82 is fixedly connected in the hose 81, the fixing piece 82 is provided with a first liquid injection hole 821 and a second liquid injection hole 822, and a one-way valve is provided in the first liquid injection hole 821 and the second liquid injection hole 822; a piston rod 9, is slidably connected in the liquid storage tube 8, and the piston rod 9 is fixedly connected to the movable sleeve 5; the push plate 91, is slidably connected in the liquid storage tube 8, and the push plate 91 is located on the left side of the piston rod 9; the first elastic member 92, is arranged between the push plate 91 and the liquid storage tube 8, and the first elastic member 92 is located on the left side of the push plate 91, the cleaning shell 4 is made of elastic deformable material, and the elastic coefficient of the cleaning shell 4 is smaller than the elastic coefficient of the leather cup 3, and the liquid capsule 7 is made of elastic deformable material, so that the liquid capsule 7 and the leather cup 3 can drive the cleaning shell 4 to reset synchronously during the resetting process.

[0071] In the above scheme, hydraulic oil is stored in the liquid bag 7; the interior of the liquid storage tube 8 is filled with hydraulic oil; the first elastic member 92 is a spring, and the elastic coefficient of the first elastic member 92 is equal to the elastic coefficient of the cleaning shell 4; the connection point between the liquid storage tube 8 and the hose 81 is located between the piston rod 9 and the push plate 91; the diameter of the first liquid injection hole 821 is larger than the diameter of the second liquid injection hole 822, and the flow direction of the one-way valve in the first liquid injection hole 821 is from bottom to top, and the flow direction of the one-way valve in the second liquid injection hole 822 is from top to bottom.

[0072] When the leather cup 3 on the right side is squeezed and deformed, the leather cup 3 on the right side squeezes the liquid capsule 7, so that the hydraulic oil in the liquid capsule 7 is transported to the liquid storage tube 8 through the hose 81 (at this time, the hydraulic oil flows through the first injection hole 821), and then the piston rod 9 moves to the right due to the squeezing force, and the piston rod 9 drives the movable sleeve 5 to move to the right synchronously to reduce the pulling force on the cleaning shell 4, so that the cleaning shell 4 gradually opens, until the cleaning shell 4 is fully opened and the piston rod 9 moves to the right to the extreme position.

[0073] When the cleaning shell 4 contacts the deformed portion of the right leather cup 3 in the oil delivery pipe 1 (hereinafter referred to as the abnormal portion), the cleaning shell 4 is deformed by the extrusion force. The deformation process of the cleaning shell 4 is divided into the following two situations:

[0074] The first one: the abnormal part is projected on the horizontal plane and its length in the left-right direction is greater than the distance between the cleaning shell 4 and the right leather cup 3. Under this premise, the following two situations will occur:

[0075] First, the abnormal part is the concave part of the oil pipeline 1. At this time, when the cleaning shell 4 contacts the abnormal part, the leather cup 3 on the right side is not separated from the abnormal part. The leather cup 3 on the right side is squeezed by the abnormal part and cannot drive the liquid capsule 7 to reset. Therefore, after the cleaning shell 4 is squeezed by the abnormal part, it drives the piston rod 9 to move to the left synchronously relative to the fixed tube 2 through the circumferentially evenly distributed connecting rod 6 and the movable sleeve 5. At the same time, during the movement, the piston rod 9 squeezes the push plate 91 through the hydraulic oil in the liquid storage tube 8 (at this time, the hydraulic oil in the liquid storage tube 8 cannot flow back into the liquid capsule 7), so that the push plate 91 moves to the left synchronously relative to the fixed tube 2, and the first elastic member 92 is compressed and stored until the cleaning shell 4 shrinks to a diameter smaller than the diameter of the inscribed circle of the concave part of the oil pipeline 1. The concave part of the oil pipeline 1 no longer intercepts the cleaning shell 4. At this time, the cleaning shell 4 can pass through the concave part of the oil pipeline 1 normally under the drive of the fixed tube 2, that is, the fixed tube 2 can drive the parts thereon to continue to move to the right.

[0076] Second, if the abnormal part is the accumulated impurities, the cleaning shell 4 is used to clean the impurities according to the above operation.

[0077] When the leather cup 3 on the right side moves to the right and is separated from the abnormal part, the leather cup 3 on the right side drives the liquid bag 7 to gradually return to its original position under the action of its own elastic force, and at the same time draws the hydraulic oil in the liquid storage tube 8 back into the liquid bag 7, so that the push plate 91 is gradually returned to the right under the action of the first elastic member 92, and drives the cleaning shell 4 to gradually return to the contracted state.

[0078] The second type: the length of the projection of the abnormal part on the horizontal plane in the left and right direction is less than the distance between the cleaning shell 4 and the right leather cup 3. At the same time, under this premise, the following two situations will also occur:

[0079] First, the abnormal part is the concave part of the oil pipeline 1. At this time, when the cleaning shell 4 contacts the abnormal part, the leather cup 3 on the right side has been separated from the abnormal part, and the leather cup 3 on the right side is no longer squeezed by the abnormal part. Therefore, the leather cup 3 on the right side drives the liquid capsule 7 to gradually return to its original position under the action of its own elastic force, and causes the hydraulic oil in the liquid storage tube 8 to flow back into the liquid capsule 7.

[0080] In the process of the above-mentioned right leather cup 3 driving the liquid capsule 7 to reset, the hydraulic oil between the piston rod 9 and the push plate 91 flows back to the liquid capsule 7 through the hose 81 (at this time, the hydraulic oil flows through the second injection hole 822). In this process, because the flow area of ​​the second injection hole 822 is smaller than the flow area of ​​the first injection hole 821, the hydraulic oil between the piston rod 9 and the push plate 91 flows back to the liquid capsule 7 at a slower speed, thereby slowly resetting the cleaning shell 4. Therefore, the cleaning shell 4 will still contact the abnormal part, and the cleaning shell 4 will be squeezed by the abnormal part to increase the contraction speed, thereby accelerating the reflux speed of the hydraulic oil in the liquid storage tube 8.

[0081] Second, the abnormal part is the accumulated impurities. After the cleaning shell 4 comes into contact with the impurities, it cleans the impurities according to the above operation. However, at this time, the cleaning shell 4 only cleans the impurities on the surface, and the remaining impurities are cleaned by the leather cup 3 on the left side. At the same time, the slow resetting of the cleaning shell 4 increases the contact time between the cleaning shell 4 and the impurities accumulated on the inner wall of the oil pipeline 1, thereby enhancing the cleaning effect of the impurities accumulated on the inner wall of the oil pipeline 1.

[0082] Embodiment 2: Based on embodiment 1, Figure 2 , Figure 6 and Figure 7 As shown, it also includes: a cleaning mechanism, which is arranged on the fixed pipe 2 and is used to clean the impurities remaining on the inner wall of the oil pipeline 1. The cleaning mechanism includes: a connecting ring 10, which is rotatably connected to the fixed pipe 2; a liquid storage shell 20, which has a plurality of circumferentially uniformly distributed ones, all of which are fixedly connected to the outer side of the connecting ring 10, and the rotation angle of the connecting ring 10 is less than 360° divided by the specific number of the liquid storage shells 20. The interior of the liquid storage shell 20 is slidably connected to a moving shell 21, and the interior of the moving shell 21 is slidably connected to a fixed column 22. The fixed column 22 is located on one side outside the adjacent moving shell 21 and is fixedly connected to a cleaning brush; the number of third elastic members 23 is consistent with the number of moving shells 21, and they are respectively fixedly connected to adjacent moving shells 21 and adjacent fixed columns 22; a rotating component, which is arranged on the fixed pipe 2, and the rotating component is used to change the position of the cleaning brush.

[0083] In the above scheme, the specific number of liquid storage shells 20 can be specifically selected by the staff. The figure and the text both take six circumferentially evenly distributed as an example. The rotation angle of the connecting ring 10 is less than 60°. After the cleaning brush on the fixed column 22 is parallel to the horizontal plane, the coverage length of the projection of the cleaning brush on the horizontal plane in the front-to-back direction is greater than the outer diameter of the adjacent liquid storage shell 20, ensuring that in the process of the connecting ring 10 driving the lower liquid storage shell 20 to rotate, the cleaning brush can cover the fan with a central angle of 60°, so that the cleaning brush can completely cover the 360° circle; the third elastic member 23 is a spring; in the process of the device moving to the right, the rotating component is driven by gas to work, and then the rotating component drives the connecting ring 10 to twist repeatedly, and the connecting ring 10 drives the six cleaning brushes to rotate synchronously to clean the impurities remaining on the inner wall of the oil pipeline 1, thereby further reducing the residual amount of impurities on the inner wall of the oil pipeline 1.

[0084] Further, such as Figure 6 and Figure 8-Figure 10As shown, the rotating assembly includes: a first connecting shell 11, which is slidably connected to the left side of the fixed tube 2; a fixed shell 12, which is fixed to the inside of the first connecting shell 11 through a connecting piece; a rotating shaft 13, which is rotatably connected to the fixed shell 12, and a spline shaft that is spline-matched with the rotating shaft 13 is fixed to the left side of the connecting ring 10, and the rotating shaft 13 is provided with a limiting groove, and the limiting groove on the rotating shaft 13 is arc-shaped, and the angle of the central angle corresponding to the projection of the limiting groove of the rotating shaft 13 on the connecting ring 10 is equal to the rotation angle of the connecting ring 10; driving The ring 14 is slidably connected to the inside of the fixed shell 12, the driving ring 14 is slidably connected to the rotating shaft 13, and the driving ring 14 is inlaid with a rolling ball that can roll freely, and the rolling ball slides in the limiting groove of the rotating shaft 13. The rotating assembly also includes: a wind gathering shell 15, which is fixed to the inside of the first connecting shell 11, and the wind gathering shell 15 is located at the lower side of the fixed shell 12. The upper side of the wind gathering shell 15 is fixedly connected and connected to two connecting pipes 151 distributed symmetrically on the left and right. The fixed shell 12 is provided with two air inlet holes and two symmetrically distributed air inlets on the left and right. The two exhaust holes of the fixed shell 12 are located at the lower side thereof, and the two exhaust holes of the fixed shell 12 are located at the upper side thereof. The connecting pipe 151 is connected to the adjacent air inlet holes on the fixed shell 12. The movable column 16 has two symmetrically distributed columns on the left and right, which are respectively slidably connected to one side of the wind gathering shell 15. The blocking block 17 has two symmetrically distributed columns on the left and right, which are respectively fixed to the adjacent movable columns 16. The blocking block 17 is matched with the adjacent air inlet holes on the fixed shell 12, and the blocking block 17 is pressed against the driving ring 14. The sealing block 17 is slidably matched with the adjacent connecting pipe 151; the bidirectional telescopic rod 18 is rotatably connected to the lower side of the first connecting shell 11, the bidirectional telescopic rod 18 is located below the wind gathering shell 15, and the two telescopic ends of the bidirectional telescopic rod 18 are rotatably connected to the adjacent moving columns 16 respectively; the U-shaped fixing frame 181 has two symmetrically distributed on the left and right, both of which are fixed to the lower side of the first connecting shell 11, the U-shaped fixing frame 181 is rotatably connected to the second elastic member 19, and the second elastic member 19 is fixed to the adjacent moving column 16.

[0085] In the above scheme, the diameter of the exhaust hole on the fixed shell 12 is much smaller than the diameter of the air inlet hole thereon; the left side of the wind gathering shell 15 is horn-shaped, which is used to guide the gas to flow into the wind gathering shell 15; the two connecting pipes 151 are composed of a semicircular portion and a U-shaped portion, the semicircular portion of the left connecting pipe 151 is located on its left side, and the semicircular portion of the right connecting pipe 151 is located on its right side, and the diameter of the semicircular portion of the connecting pipe 151 is larger than the diameter of the bending part of its U-shaped portion; the projection of the blocking block 17 on the horizontal plane is composed of symmetrically distributed semicircular portions and rectangular portions, and the diameter of the upper semicircular portion of the blocking block 17 is equal to the inner diameter of the bending part of the U-shaped portion of the connecting pipe 151; the opposite sides of the two blocking blocks 17 are provided with The dynamic ring 14 is squeezed into an inclined surface. Initially, the driving ring 14 contacts with the blocking block 17 on the left side. The air inlet on the left side of the fixed shell 12 is not blocked by the blocking block 17 on the left side, and the air inlet on the right side of the fixed shell 12 has been blocked by the blocking block 17 on the right side, that is, initially, the gas in the wind gathering shell 15 can only flow into the fixed shell 12 along the air inlet on the left side of the fixed shell 12; the U-shaped fixing frame 181 is composed of two vertical parts and a horizontal part; the second elastic member 19 is a spring sheet, and the length of the second elastic member 19 is greater than the distance between the two vertical parts of adjacent U-shaped fixing frames 181. Initially, the second elastic member 19 on the left side bends downward, and the second elastic member 19 on the right side bends upward.

[0086] In the process of the gas driving the device to move to the right, the horn on the left side of the wind collecting shell 15 guides the gas thereinto, so that the gas flows in the wind collecting shell 15 and flows along the connecting pipe 151 on the left side into the fixed shell 12 (between the left side of the driving ring 14 and the fixed shell 12), so that the driving ring 14 is pushed to move to the right by the gas, and at the same time, the driving ring 14 drives the rolling ball thereon to move along the limit groove on the rotating shaft 13, so that the rotating shaft 13 is squeezed and rotated counterclockwise (with the rotation of the rotating shaft 13 rotating counterclockwise). Figure 1 The perspective from left to right in the figure is the reference perspective), and the rotating shaft 13 drives the connecting ring 10 to rotate synchronously through the transmission of the spline shaft, and then the connecting ring 10 drives the six cleaning brushes to rotate synchronously.

[0087] In the process of the driving ring 14 moving to the right, until the driving ring 14 moves to contact the inclined surface on the right blocking block 17, the driving ring 14 squeezes the inclined surface on the right blocking block 17, so that the right blocking block 17 moves downward due to the squeezing force, and the right blocking block 17 drives the moving column 16 thereon to move downward synchronously, so that the right end of the two-way telescopic rod 18 moves downward.

[0088] During the downward movement of the movable column 16 on the right side, the movable column 16 squeezes the second elastic member 19 thereon, causing the second elastic member 19 to deform under pressure until the driving ring 14 moves to the right to the limit position, and the blocking block 17 stops moving downward synchronously. At this time, the second elastic member 19 on the right side changes from bending upward to bending downward, and then the second elastic member 19 on the right side limits the movable column 16 on the right side through its own elastic force, preventing the movable column 16 on the right side from moving upward.

[0089] During the downward movement of the right end of the above-mentioned two-way telescopic rod 18, the left end of the two-way telescopic rod 18 drives the movable column 16 on the left to move upward synchronously. Until the blocking block 17 on the right stops moving downward, the movable column 16 on the left stops moving upward synchronously. At this time, the blocking block 17 on the left blocks the air inlet on the left side of the fixed shell 12, and at the same time, the second elastic member 19 on the left changes from bending downward to bending upward, and then the second elastic member 19 on the left limits the movable column 16 on the left through its own elastic force, preventing the movable column 16 on the right from moving downward, ensuring that only one of the two air inlet holes on the fixed shell 12 is connected at the same time.

[0090] When the blocking block 17 on the right side stops moving downward, the blocking block 17 on the right side no longer blocks the air inlet on the right side of the fixed shell 12. At this time, the gas in the wind gathering shell 15 can flow into the fixed shell 12 along the air inlet on the right side of the fixed shell 12, so that the driving ring 14 is reset to the left due to the extrusion force. At the same time, the gas on the left side of the driving ring 14 is discharged outward from the air outlet on the left side of the fixed shell 12, thereby causing the connecting ring 10 to drive the parts thereon to reset to the initial position, so as to achieve the purpose of the reciprocating swing of the six cleaning brushes, and the six cleaning brushes jointly clean the impurities remaining on the inner wall of the oil pipeline 1, thereby further reducing the residual amount of impurities on the inner wall of the oil pipeline 1.

[0091] Embodiment 3: Based on embodiment 2, Figure 2 , Figure 6 and Figure 8 As shown, it also includes: a second connecting shell 24, which is fixedly connected to the side of the fixed tube 2 close to the first connecting shell 11, the first connecting shell 11 slides in the second connecting shell 24, and the circumferentially evenly distributed liquid storage shells 20 are connected to the second connecting shell 24 through a hose; a fourth elastic member 25, which is fixedly connected between the second connecting shell 24 and the first connecting shell 11.

[0092] In the above scheme, the second connecting shell 24 is located on the left side of the fixed pipe 2, and the second connecting shell 24 is filled with hydraulic oil; the fourth elastic member 25 is a spring; when the resistance to the rightward movement of the fixed pipe 2 increases, the air pressure on the left side of the device increases continuously, so that the leather cup 3 on the left side is affected by the gas pressure and drives the first connecting shell 11 to move to the right synchronously, and the first connecting shell 11 squeezes the hydraulic oil in the second connecting shell 24 into the six liquid storage shells 20 through the hose, so that the six moving shells 21 are moved away from each other, and the six cleaning brushes are synchronously moved away from each other, but at this time the six cleaning brushes are all affected by the oil pipe 1 The six movable shells 21 are intercepted by the inner wall and cannot move, thus forcing them to move relative to the adjacent fixed columns 22, thereby gradually compressing the six fourth elastic members 25 to increase the squeezing force provided by the six cleaning brushes on the oil pipeline 1, thereby improving the cleaning effect of the residual impurities on the inner wall of the oil pipeline 1, avoiding the situation where a large amount of impurities remain on the inner wall of the oil pipeline 1 when the right leather cup 3 is deformed due to the accumulation of impurities as mentioned above, and avoiding the situation where the leather cup 3 and the concave part of the oil pipeline 1 are unevenly contacted when the right leather cup 3 is deformed due to the concave inner wall of the oil pipeline 1, resulting in incomplete cleaning.

[0093] Embodiment 4: Based on embodiment 3, Figure 1-Figure 10 As shown, a cleaning method for oil field oil pipelines, and a cleaning device for oil field oil pipelines based on the above technical solution, include the following steps:

[0094] S1: Put the fixed pipe 2 into the oil pipeline 1 to be cleaned, and then deliver gas into the oil pipeline 1. When the gas pressure in the oil pipeline 1 can drive the fixed pipe 2 to move, the gas drives the fixed pipe 2 to move along the oil pipeline 1, and the leather cup 3 cleans out the impurities in the oil pipeline 1;

[0095] S2: During the movement of the fixed pipe 2, the gas blows the driving ring 14 to reciprocate, and the driving ring 14 drives the connecting ring 10 to reciprocate synchronously during the movement, thereby driving the cleaning brush to reciprocate, thereby cleaning the impurities remaining on the inner wall of the oil pipeline 1;

[0096] S3: During the cleaning process of the oil delivery pipe 1, when the leather cup 3 is blocked and deformed, the cleaning shell 4 cleans the impurities inside it and detects the cause of the deformation of the leather cup 3 to determine whether the oil delivery pipe 1 is deformed;

[0097] S4: When the cleaning shell 4 cleans the impurities in the oil pipeline 1, the resistance to the movement of the fixed pipe 2 increases synchronously, so that the first connecting shell 11 and the connecting ring 10 move relative to each other, thereby increasing the squeezing force of the cleaning brush on the inner wall of the oil pipeline 1;

[0098] S5: After the oil pipeline 1 to be cleaned is cleaned, the fixed pipe 2 is taken out from the oil pipeline 1, and the fixed pipe 2 is maintained and cleaned for subsequent use.

[0099] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and its improved conception, which should be covered by the protection scope of the present application.

Claims

1. A cleaning device for oil field oil pipeline, characterized in that it includes: Fixed tube (2); A plurality of leather cups (3) distributed in a straight line, all of which are fixedly connected to the outer side of the fixed tube (2); A cleaning shell (4) is fixedly connected to the outer side of the fixed tube (2), and the cleaning shell (4) is located between the two leather cups (3); A movable sleeve (5) is slidably connected to the fixed pipe (2), and the movable sleeve (5) and the cleaning shell (4) are hingedly connected to a connecting rod (6) evenly distributed in the circumferential direction; A trigger assembly, arranged on the fixed tube (2), the trigger assembly being used to change the shape of the cleaning shell (4); The trigger component comprises: A liquid capsule (7) is fixedly connected to one side of the fixed tube (2), the liquid capsule (7) is located inside the adjacent leather cup (3), and the liquid capsule (7) is squeezed and matched with the adjacent leather cup (3); A liquid storage tube (8) fixedly connected to the interior of the fixed tube (2) via a connecting piece; a hose (81) fixedly connected to and in communication with the liquid storage tube (8); the hose (81) is fixedly connected to and in communication with the liquid bag (7); a fixing member (82) is fixedly connected inside the hose (81); the fixing member (82) is provided with a first liquid injection hole (821) and a second liquid injection hole (822); and a one-way valve is provided inside the first liquid injection hole (821) and the second liquid injection hole (822); A piston rod (9) is slidably connected to the liquid storage tube (8), and the piston rod (9) is fixedly connected to the movable sleeve (5); A push plate (91) is slidably connected to the liquid storage tube (8), and the push plate (91) is located on a side of the piston rod (9) away from the movable sleeve (5); A first elastic member (92) is disposed between the push plate (91) and the liquid storage tube (8), and the first elastic member (92) is located on a side of the push plate (91) away from the piston rod (9).

2. A cleaning device for oil field oil pipeline according to claim 1, characterized in that: A curved portion is provided on a side of the cleaning shell (4) away from the fixed pipe (2).

3. A cleaning device for oil field oil pipeline according to claim 2, characterized in that: The cleaning shell (4) is made of an elastic deformable material, and the elastic coefficient of the cleaning shell (4) is smaller than the elastic coefficient of the leather cup (3), and the liquid capsule (7) is made of an elastic deformable material.

4. A cleaning device for oil field oil pipeline according to claim 3, characterized in that include: A cleaning mechanism is arranged on the fixed pipe (2) and is used to clean impurities remaining on the inner wall of the oil pipeline (1), the cleaning mechanism comprising: A connecting ring (10) rotatably connected to the fixed tube (2); The liquid storage shell (20) has a plurality of evenly distributed circumferential portions, all of which are fixedly connected to the outer side of the connecting ring (10); the interior of the liquid storage shell (20) is slidably connected to a moving shell (21); the interior of the moving shell (21) is slidably connected to a fixing column (22); a cleaning brush is fixedly connected to a side of the fixing column (22) adjacent to the outside of the moving shell (21); The number of third elastic members (23) is the same as that of the movable shells (21), and they are respectively fixed to adjacent movable shells (21) and adjacent fixed columns (22); A rotating assembly is arranged on the fixed tube (2), and the rotating assembly is used to change the position of the cleaning brush.

5. A cleaning device for oil field oil pipeline according to claim 4, characterized in that: The rotating assembly comprises: A first connecting shell (11) slidably connected to a side of the fixing tube (2) close to the connecting ring (10); A fixed shell (12) fixedly connected to the interior of the first connecting shell (11) via a connecting piece; A rotating shaft (13) is rotatably connected in the fixed shell (12); a spline shaft that is spline-matched with the rotating shaft (13) is fixedly connected to a side of the connecting ring (10) close to the fixed shell (12); and a limiting groove is provided on the rotating shaft (13); A drive ring (14) is slidably connected to the interior of the fixed shell (12); the drive ring (14) is slidably connected to the rotating shaft (13); and the drive ring (14) is inlaid with a freely rolling rolling ball, which slides in a limiting groove of the rotating shaft (13).

6. A cleaning device for oil field oil pipeline according to claim 5, characterized in that: The rotation angle of the connecting ring (10) is less than 360° divided by the specific number of the liquid storage shells (20), and the limiting groove on the rotating shaft (13) is arc-shaped, and the angle of the central angle corresponding to the projection of the upper limiting groove of the rotating shaft (13) on the connecting ring (10) is equal to the rotation angle of the connecting ring (10).

7. A cleaning device for oil field oil pipeline according to claim 6, characterized in that: The rotating assembly also includes: an air gathering shell (15) fixedly connected to the interior of the first connecting shell (11), the air gathering shell (15) being fixedly connected to and in communication with symmetrically distributed connecting pipes (151), the fixed shell (12) being provided with symmetrically distributed air inlet holes and symmetrically distributed air outlet holes, the connecting pipes (151) being in communication with adjacent air inlet holes on the fixed shell (12); The movable columns (16) have two symmetrically distributed ones and are respectively slidably connected to one side of the wind gathering shell (15); The blocking blocks (17) have two symmetrically distributed blocks, which are respectively fixed to adjacent movable columns (16); the blocking blocks (17) are in sealing cooperation with adjacent air inlet holes on the fixed shell (12); the blocking blocks (17) are in extrusion cooperation with the driving ring (14); and the blocking blocks (17) are in sliding cooperation with adjacent connecting pipes (151); a bidirectional telescopic rod (18) rotatably connected to a side of the first connecting shell (11) close to the wind gathering shell (15), and two telescopic ends of the bidirectional telescopic rod (18) are respectively rotatably connected to adjacent movable columns (16); The U-shaped fixing frame (181) has two symmetrically distributed frames, both of which are fixedly connected to one side of the first connecting shell (11) close to the wind gathering shell (15); the U-shaped fixing frame (181) is rotatably connected to a second elastic member (19); and the second elastic member (19) is fixedly connected to the adjacent movable column (16).

8. The cleaning device for oil field oil pipeline according to claim 7, characterized in that include: a second connecting shell (24) fixedly connected to a side of the fixed pipe (2) close to the first connecting shell (11); the first connecting shell (11) slides in the second connecting shell (24); and the liquid storage shells (20) uniformly distributed in the circumferential direction are all connected to the second connecting shell (24) via a hose; A fourth elastic member (25) is fixedly connected between the second connecting shell (24) and the first connecting shell (11).

9. A method for cleaning an oil field oil pipeline, characterized in that: The cleaning device for oil field oil pipeline according to claim 8 comprises the following steps: The fixed pipe (2) is placed into the oil pipeline (1) to be cleaned, and then gas is transported into the oil pipeline (1). When the gas pressure in the oil pipeline (1) can drive the fixed pipe (2) to move, the gas drives the fixed pipe (2) to move along the oil pipeline (1), and the leather cup (3) cleans out the impurities in the oil pipeline (1); During the movement of the fixed pipe (2), the gas blows the driving ring (14) to reciprocate, and the driving ring (14) drives the connecting ring (10) to rotate synchronously during the movement, thereby driving the cleaning brush to rotate reciprocally to clean the impurities remaining on the inner wall of the oil pipeline (1); During the cleaning process of the oil delivery pipe (1), when the leather cup (3) is blocked and deformed, the cleaning shell (4) cleans the impurities inside the leather cup (3); When the cleaning shell (4) cleans impurities in the oil pipeline (1), the resistance to the movement of the fixed tube (2) increases synchronously, causing the first connecting shell (11) and the connecting ring (10) to move relative to each other, thereby increasing the squeezing force of the cleaning brush on the inner wall of the oil pipeline (1); After the oil pipeline (1) to be cleaned is completely cleaned, the fixed pipe (2) is removed from the oil pipeline (1), and the fixed pipe (2) is maintained and cleaned for subsequent use.

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