Pipeline type filter applied to petroleum production

Abstract

The invention relates to the technical field of filtering equipment, and discloses a pipeline type filter applied to petroleum production, which comprises a T-shaped pipe, a filtering piece arranged in the T-shaped pipe, a bottom cover arranged at the bottom of the T-shaped pipe, and a rotating assembly arranged in the bottom cover, the T-shaped pipe specifically comprises an inlet pipe, an outlet pipe and an extension pipe. The rotating assembly specifically comprises a rotating base arranged on the inner bottom wall of the bottom cover, a rotating rod arranged in the rotating base, an extension rod arranged above the rotating rod and a control connecting piece arranged in the drainage groove and used for connecting the extension rod and the rotating rod. According to the pipeline type filter applied to petroleum production, through the arrangement of the bottom cover, petroleum flows into the inlet pipe and then flows out of the outlet pipe, impurities in the petroleum are intercepted by the filtering piece, and when the impurities attached to the surface of the filtering piece influence petroleum flowing, the filtering piece is rotated through the rotating assembly, so that the part, attached with the impurities, of the filtering piece leaves the opening of the outlet pipe; therefore, the influence of impurities is eliminated, and smooth petroleum circulation is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of filtration equipment technology, and more particularly to a pipeline filter used in petroleum production. Background Technology

[0002] In the oil production process, crude oil extracted from the wellhead needs to be transported through pipelines to gathering stations, processing plants, and other downstream stages. Crude oil often contains various impurities, including sediment and rock cuttings carried from the formation, metal fragments from the wear and tear of extraction equipment, and solid particles such as paraffin wax and colloids precipitated from the crude oil itself. If these impurities directly enter the pipelines and downstream equipment (such as oil pumps, valves, flow meters, and heat exchangers), they can cause a series of problems, such as shortened equipment lifespan and increased leakage risk.

[0003] To address these issues, pipeline filters are widely used in oil production transportation systems. By using filter elements to intercept impurities, they protect downstream equipment and ensure smooth transportation.

[0004] Patent publication number CN118949519A discloses a vertical pipeline filter for petroleum production, including a riser, an inlet pipe and an outlet pipe mounted on the riser, with the inlet and outlet pipes flush. It also includes a filter unit comprising a filter element housed within the riser. The filter element has a series of through-holes arranged in an array, two through-holes arranged in an array, and three vertically arranged through-holes arranged in an array. The number of through-holes is the same as the number of filter holes, and they intersect. Petroleum flows from the inlet pipe to the outlet pipe through the two filter holes. This vertical pipeline filter for petroleum production, by setting the filter element to a three-dimensional porous structure, allows impurities to be filtered out within the filter element after the petroleum flows through it, increasing the filter's filtration efficiency. By progressively decreasing the diameter of the two filter holes, the petroleum flowing through the filter element undergoes multi-stage filtration, preventing impurities from accumulating on a single filter surface and reducing the risk of filter element clogging.

[0005] The existing technology has the following drawbacks: In actual operation, pipeline filters intercept a large amount of impurities in the oil. Some of these impurities settle downwards inside the pipeline filter, while others adhere to the filter screen surface under the pressure generated by the oil flow. As the usage time increases, more and more impurities adhere to the filter screen surface, which can obstruct the flow of oil. This not only affects the oil transportation efficiency but also increases the pressure inside the pipeline, posing a safety hazard. Summary of the Invention

[0006] Given the problem of clogging in existing pipeline filters, a pipeline filter for use in oil production is proposed.

[0007] This application provides a pipeline filter for use in oil production, the purpose of which is to unclog the pipeline filter.

[0008] The technical solution of the present invention is: a pipeline filter for petroleum production, comprising a T-shaped pipe, a filter element disposed within the T-shaped pipe, a bottom cover disposed at the bottom of the T-shaped pipe, and a rotating assembly disposed inside the bottom cover; The T-shaped tube specifically includes three parts: an inlet tube, an outlet tube, and an extension tube. The rotating assembly specifically includes a rotating seat set on the bottom wall of the bottom cover, a rotating rod set in the rotating seat, an extension rod set above the rotating rod, and a control connector set in the drainage groove for connecting the extension rod and the rotating rod. The inlet pipe is located at the top of the extension pipe, and the outlet pipe is located on the side of the connection between the inlet pipe and the outlet pipe. The filter element extends from the inside of the inlet pipe to the bottom wall of the extension pipe, covering the connecting part of the inlet pipe, the extension pipe and the outlet pipe. The bottom cover is located at the bottom of the extension pipe. The extension rod passes through the extension pipe and connects with the filter element. One end of the rotating rod goes downward through the bottom cover, and the other end goes upward and fits against the extension rod.

[0009] Furthermore, the filter element specifically includes a cylindrical frame, a filter screen disposed on the outside of the cylindrical frame, a handle disposed on the top of the cylindrical frame, and a support disposed on the bottom of the cylindrical frame; the cylindrical frame is cylindrical.

[0010] Furthermore, a cleaning assembly is provided inside the bottom cover. The cleaning assembly specifically includes a rotating disk inside the bottom cover, two sedimentation tanks opened on the top of the rotating disk, two inlet outlets opened on the outside of the rotating disk, and an outlet opened on the outside of the bottom cover. The bottom of the extension tube is provided with a sedimentation port, which is connected to one of the sedimentation tanks. The two sedimentation tanks are symmetrically arranged. The inner flow port is connected to the sedimentation tank, and the outer flow port is connected to one of the inner flow ports. The rotating sleeve and the rotating rod are connected by a control connector.

[0011] Furthermore, the cleaning assembly also includes a piston plate disposed in the sedimentation tank, a push rod disposed at the bottom of the piston plate, and a control ring disposed on the inner bottom wall of the bottom cover; The top of the control ring is provided with a protrusion, which is located between the two sedimentation tanks and biased towards the outflow port. The push rod presses against the top of the control ring. When the push rod is at the top of the protrusion, the upper surface of the piston plate is flush with the upper surface of the rotating disk. When the push rod leaves the protrusion, the upper surface of the piston plate is flush with the bottom surface of the inflow port.

[0012] Furthermore, the bottom of the rotating disk is provided with two damping elements, which are sleeved on the outside of the push rod.

[0013] Furthermore, the sedimentation port is located on the side facing the outlet pipe from the central axis of the extension pipe.

[0014] Furthermore, a drainage groove is provided on the outer side of the bottom cover, which is located below the sedimentation tank and communicates with the sedimentation tank.

[0015] Furthermore, the control connector includes a rotating sleeve disposed at the bottom of the rotating disk, an upper groove one disposed at the bottom of the rotating sleeve, an upper groove two disposed at the bottom of the extension rod, a lower groove one and a lower groove two disposed at the top of the rotating rod, an upper sliding rod disposed inside the upper groove one, a lower sliding rod disposed inside the lower groove one, a long sliding rod disposed inside the lower groove two, a control groove disposed inside the rotating rod, a control console disposed inside the control groove, and a control rod disposed at the bottom of the control console. The rotating sleeve is fitted on the outside of the extension rod, and the rotating sleeve extends to the top of the rotating rod. The upper groove one and the lower groove are concentrically set, and the upper groove two and the lower groove two are concentrically set. The length of the upper sliding rod is the same as the depth of the upper groove one, the length of the lower sliding rod is the same as the depth of the lower groove one, and the length of the long sliding rod is greater than the depth of the lower groove two. Both the lower groove one and the lower groove two are connected to the control groove. The control console is supported by the bottom of the lower sliding rod and the long sliding rod.

[0016] Furthermore, the opposite ends of the upper slide rod and the lower slide rod are both provided with rounded corners.

[0017] Furthermore, a sealing plate is provided inside the bottom cover, and a through hole is provided on the top of the sealing plate; The sealing plate is located on top of the rotating disk and seals the two sedimentation tanks, with the connecting hole connecting the sedimentation port and the sedimentation tank.

[0018] The beneficial effects of this invention are: 1. By setting a bottom cover, oil flows into the inlet pipe and then out through the outlet pipe. Impurities are intercepted by the filter element. When impurities attached to the surface of the filter element affect the flow of oil, the filter element is rotated by the rotating component, causing the part of the filter element with impurities attached to it to move away from the opening of the outlet pipe. This eliminates the impact of impurities and ensures smooth oil flow. At the same time, the impurities adsorbed on the surface of the filter element will detach from the surface of the filter element and settle downwards after losing the pressure of the flowing oil. In this way, the rotating component can be used for continuous unblocking, and the number of times is unlimited. The equipment can be controlled manually or by driving the rotating component to rotate. It is convenient to use and conducive to promotion.

[0019] 2. By setting up the cleaning component, during the filtration process, the impurities precipitated inside the filter element will gather in the connecting hole and then flow into the sedimentation tank. Rotating the rotating disc connects the sedimentation tank containing the impurities with the outflow port, and the impurities in the sedimentation tank flow out from the outflow port. This can quickly clean the precipitated impurities without disassembling the machine for cleaning, making it more convenient to use.

[0020] 3. By setting a piston plate, when the sedimentation tank moves below the connecting hole, the oil pressure will push the piston plate downward, forming a sedimentation space in the sedimentation tank. Then the sedimentation tank rotates to the outflow port to discharge impurities. When the sedimentation tank moves to the connecting hole again, the piston plate is pushed upward through the protrusion to clear the air in the sedimentation tank. This prevents air from entering the extension pipe, which can reduce safety hazards (explosion) and reduce equipment wear (cavitation).

[0021] 4. By setting up a rotating component and sliding control console to control the height of the long slide bar and the lower slide bar, the rotating bar is connected to the extension bar or rotating sleeve, which respectively play the role of clearing the filter and cleaning impurities. The equipment is simple to control and easy to use. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention; Figure 2 For the present invention Figure 1 Second-person perspective illustration; Figure 3 This is a schematic diagram of the filter element of the present invention; Figure 4 For the present invention Figure 3 Second-person perspective illustration; Figure 5 This is a schematic diagram of the internal parts of the bottom cover of the present invention; Figure 6 For the present invention Figure 5 Second-person perspective illustration; Figure 7 This is a schematic diagram of the bottom of the rotating disk of the present invention; Figure 8 This is a schematic diagram of the internal parts of the rotating disk of the present invention; Figure 9 This is a schematic diagram of the control loop of the present invention; Figure 10 This is a front view of the present invention; Figure 11 This is a top view of the present invention; Figure 12 For the present invention Figure 11 Sectional view at point AA; Figure 13 For the present invention Figure 12 Enlarged view of the midsole cover; Figure 14 For the present invention Figure 13 Enlarged view of the midsole cover; Figure 15 For the present invention Figure 14 Enlarged view of section B in the middle.

[0023] In the picture: 1. T-shaped tube; 11. Inlet pipe; 12. Outlet pipe; 13. Extension pipe; 14. Sedimentation port; 2. Filter element; 21. Cylindrical frame; 22. Filter screen; 23. Handle; 24. Support; 3. Bottom cover; 31. Limiting ring; 32. Drainage channel; 4. Rotating assembly; 41. Extension rod; 42. Rotating seat; 43. Rotating rod; 44. Rotating sleeve; 45. Upper slot one; 46. Upper slot two; 47. Lower slot one; 48. Lower slot two; 49. Upper sliding rod; 410. Lower sliding rod; 411. Long sliding rod; 412. Control slot; 413. Control console; 414. Control rod; 5. Cleaning assembly; 51. Rotating disk; 52. Sedimentation tank; 53. Inner outlet; 54. Outer outlet; 55. Piston plate; 56. Push rod; 57. Control ring; 58. Damping element; 6. Sealing plate; 61. Connecting hole. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Example 1, referring to Figures 1-12 The first embodiment of the present invention provides a pipeline filter for use in oil production, including a T-shaped pipe 1, a filter element 2 disposed inside the T-shaped pipe 1, a bottom cover 3 disposed at the bottom of the T-shaped pipe 1, and a rotating assembly 4 disposed inside the bottom cover 3.

[0026] The T-shaped tube 1 specifically includes three parts: an inlet tube 11, an outlet tube 12, and an extension tube 13. The rotating assembly 4 specifically includes a rotating seat 42 disposed on the inner bottom wall of the bottom cover 3, a rotating rod 43 disposed in the rotating seat 42, an extension rod 41 disposed above the rotating rod 43, and a control connector disposed in the drainage groove 32 for connecting the extension rod 41 and the rotating rod 43.

[0027] Specifically, the inlet pipe 11, outlet pipe 12, and extension pipe 13 are integrally cast. The inlet pipe 11 is located at the top of the extension pipe 13, and the outlet pipe 12 is located on the side of the connection between the inlet pipe 11 and the outlet pipe 12. The bottom end of the extension pipe 13 is closed. The filter element 2 extends from the inside of the inlet pipe 11 to the bottom wall of the extension pipe 13, covering the connecting part of the inlet pipe 11, the extension pipe 13, and the outlet pipe 12. The filter element 2 specifically includes a cylindrical frame 21, a filter screen 22 disposed on the outside of the cylindrical frame 21, a handle 23 disposed on the top of the cylindrical frame 21, and a bracket 24 disposed on the bottom of the cylindrical frame 21. The cylindrical frame 21 is cylindrical. The filter element 2 can be taken out as a whole from above the inlet pipe 11 through the handle 23. A pressure sensor is installed in the inlet pipe 11, and a flow rate sensor is installed in the outlet pipe 12.

[0028] By setting up a cylindrical frame 21, the overall structure of the filter element 2 is strengthened, making it less prone to deformation.

[0029] The bottom cover 3 is located at the bottom of the extension tube 13 and is fixed by bolts. The extension rod 41 passes through the extension tube 13 and is fixedly connected to the bracket 24. One end of the rotating rod 43 passes downward through the bottom cover 3, and the other end is attached upward to the extension rod 41. The rotating rod 43 is rotatably connected to the rotating seat 42. The rotating rod 43 and the extension rod 41 are concentrically designed. The lower end of the rotating rod 43 is set as a hexagon, where a rotating handle or power equipment can be connected.

[0030] By setting the bottom cover 3, oil flows into the inlet pipe 11 and then out from the outlet pipe 12. Impurities are intercepted by the filter element 2. When impurities attached to the surface of the filter element 2 affect the flow of oil, the filter element 2 is rotated by the rotating component 4, so that the part of the filter element 2 with impurities attached leaves the opening of the outlet pipe 12. This eliminates the influence of impurities and ensures smooth oil flow. At the same time, the impurities adsorbed on the surface of the filter element 2 will detach from the surface of the filter element 2 and settle downwards after losing the pressure of the flowing oil. In this way, the rotating component 4 can be used for continuous unblocking, and the number of times is unlimited. The equipment can be controlled manually or by driving the rotating component 4 to rotate. It is convenient to use and conducive to promotion.

[0031] Example 2, refer to Figures 1-15 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a cleaning component 5 is provided inside the bottom cover 3. The cleaning component 5 specifically includes a rotating disk 51 provided inside the bottom cover 3, two sedimentation tanks 52 opened on the top of the rotating disk 51, two inflow ports 53 opened on the outside of the rotating disk 51, and an outflow port 54 opened on the outside of the bottom cover 3.

[0032] Specifically, a limiting ring 31 is fixedly connected to the inner wall of the bottom cover 3. The limiting ring 31 is supported below the rotating disk 51. The rotating disk 51 is rotatably connected to the bottom cover 3. The sedimentation tank 52 is fan-shaped, and the included angle between the two sides of the fan does not exceed 90 degrees. The two sedimentation tanks 52 are symmetrically arranged. A sedimentation port 14 is opened at the bottom of the extension tube 13. The sedimentation port 14 is connected to one of the sedimentation tanks 52. The inner flow port 53 is connected to the sedimentation tank 52. The outer flow port 54 is connected to one of the inner flow ports 53. The rotating sleeve 44 and the rotating rod 43 are connected by a control connector. The outer flow port 54 and the sedimentation port 14 are symmetrically distributed on both sides of the central axis of the extension tube 13.

[0033] By setting the cleaning component 5, during the filtration process, the impurities deposited in the filter element 2 will gather in the connecting hole 61 and then flow into the sedimentation tank 52. By rotating the rotating disk 51, the sedimentation tank 52 containing the impurities will be connected to the outflow port 54, and the impurities in the sedimentation tank 52 will flow out from the outflow port 54. In this way, the deposited impurities can be cleaned quickly without disassembling the machine for cleaning, making it more convenient to use.

[0034] The cleaning component 5 also includes a piston plate 55 disposed in the sedimentation tank 52, a push rod 56 disposed at the bottom of the piston plate 55, and a control ring 57 disposed on the inner bottom wall of the bottom cover 3.

[0035] Specifically, the piston plate 55 is slidably installed inside the sedimentation tank 52, and the top of the sedimentation tank 52 is designed with an inclination, with the side closer to the central axis of the rotating disk 51 being higher and the side closer to the inner outlet 53 being lower. This allows impurities in the sedimentation tank 52 to be quickly discharged. A ventilation hole is opened on the outer side of the rotating disk 51, connecting to the space below the piston plate 55. The control ring 57 is fixedly connected inside the bottom cover 3. The control ring 57 is concentrically arranged with the rotating disk 51. The top of the control ring 57 is provided with a protrusion, which is located between the two sedimentation tanks 52 and biased towards the outer outlet 54. At this location, the push rod 56 is fixedly connected to the piston plate 55. The push rod 56 passes downward through the rotating disk 51 and presses against the top of the control ring 57. When the push rod 56 is at the top of the protrusion, the upper surface of the piston plate 55 is flush with the upper surface of the rotating disk 51. When the push rod 56 leaves the protrusion, the upper surface of the piston plate 55 is flush with the bottom surface of the inner outlet 53. The distance from the top of the protrusion to the outer outlet 54 is less than the width of the sedimentation tank 52. This ensures that when the piston plate 55 rises, the corresponding sedimentation tank 52 is always connected to the outer outlet 54, allowing air to be discharged from the outer outlet 54.

[0036] By setting the piston plate 55, when the sedimentation tank 52 moves below the connecting hole 61, the oil pressure will push the piston plate 55 downward, forming a sedimentation space in the sedimentation tank 52. Then the sedimentation tank 52 rotates to the outflow port 54 to discharge impurities. When the sedimentation tank 52 moves to the connecting hole 61 again, the piston plate 55 is pushed upward through the protrusion to clear the air in the sedimentation tank 52. This prevents air from entering the extension pipe 13, which can reduce safety hazards (explosion) and reduce equipment wear (cavitation).

[0037] Specifically, the bottom of the rotating disk 51 is provided with two damping elements 58. The damping elements 58 are sleeved on the outside of the push rod 56. Through the action of damping force, the state of the push rod 56 is made more stable, and it has an automatic locking and positioning effect when there is no external force.

[0038] Specifically, the sedimentation port 14 is located on the side from the central axis of the extension pipe 13 toward the outlet pipe 12, so that impurities intercepted by the filter element 2 can be easily deposited into the sedimentation tank 52.

[0039] Specifically, a drainage channel 32 is provided on the outer side of the bottom cover 3. The drainage channel 32 is located below the sedimentation tank 52 and is connected to the sedimentation tank 52 to guide the flow of oil and impurities discharged in the sedimentation tank 52 and reduce the pollution area.

[0040] The control connector includes a rotating sleeve 44 located at the bottom of the rotating disk 51, an upper groove 45 located at the bottom of the rotating sleeve 44, an upper groove 46 located at the bottom of the extension rod 41, a lower groove 47 and a lower groove 48 located at the top of the rotating rod 43, an upper sliding rod 49 located inside the upper groove 45, a lower sliding rod 410 located inside the lower groove 47, a long sliding rod 411 located inside the lower groove 48, a control groove 412 located inside the rotating rod 43, a control console 413 located inside the control groove 412, and a control rod 414 located at the bottom of the control console 413.

[0041] Specifically, the rotating sleeve 44 is fitted on the outside of the extension rod 41, and the rotating sleeve 44 extends to the top of the rotating rod 43. The upper groove 45 and the lower groove 47 are concentrically arranged, the upper groove 46 and the lower groove 48 are concentrically arranged, the length of the upper sliding rod 49 is the same as the depth of the upper groove 45, the length of the lower sliding rod 410 is the same as the depth of the lower groove 47, the length of the long sliding rod 411 is greater than the depth of the lower groove 48, the lower groove 47 and the lower groove 48 are both connected to the control groove 412, and the control console 413 is supported by the bottom of the lower sliding rod 410 and the long sliding rod 411; the opposite ends of the upper sliding rod 49 and the lower sliding rod 410 are both provided with rounded corners, and the control rod 414 extends downward through the rotating rod 43.

[0042] By setting the rotating component 4, the sliding control console 413 controls the height of the long slide bar 411 and the lower slide bar 410, thereby controlling the connection between the rotating rod 43 and the extension rod 41 or the rotating sleeve 44, which respectively play the role of clearing the filter element 2 and cleaning impurities. The equipment is simple to control and easy to use.

[0043] A sealing plate 6 is provided inside the bottom cover 3, and a through hole 61 is provided on the top of the sealing plate 6.

[0044] Specifically, the sealing plate 6 is composed of a metal inner core and a corrosion-resistant rubber outer skin. The sealing plate 6 is located on the top of the rotating disk 51 and is attached to the bottom of the extension tube 13, sealing the two sedimentation tanks 52. The connecting hole 61 connects the sedimentation port 14 and the sedimentation tank 52.

[0045] The use of sealing plate 6 enhances the sealing effect above the rotating disk 51 and below the extension tube 13, preventing oil leakage.

[0046] The remaining structure is the same as that in Example 1.

[0047] Based on embodiments 1-2, the working principle of a pipeline filter applied to petroleum production according to the present invention is as follows: When the filter element 2 is clogged by impurities, the control rod 414 pushes the control console 413 upward. The control console 413 pushes the long slide rod 411 and the lower slide rod 410 completely into the lower trough 2 48 and the lower trough 1 47, respectively. The lower slide rod 410 moves upward to the opening above the lower trough 1 47 and pushes the upper slide rod 49 out of the lower trough 1 47. The long slide rod 411 moves upward and inserts into the upper trough 2 46. Thus, the extension rod 41 and the rotating rod 43 are locked by the long slide rod 411. Rotating the rotating rod 43 drives the extension rod 41 to rotate. The extension rod 41 drives the filter element 2 to rotate 180 degrees, so that the part of the filter element 2 with impurities attached leaves the opening of the outlet pipe 12. During this process, as the filter element 2 rotates, the impurities adsorbed on the surface of the filter element 2 will be detached due to the loss of pressure from the flowing oil and settle downward. The impurities settle downward and fall into the sedimentation port 14, and then enter the sedimentation tank 52 through the connecting hole 61, falling above the piston plate 55.

[0048] Impurities accumulate inside the equipment and need to be cleaned regularly. During cleaning, the control rod 414 is used to pull down the control console 413. The control console 413 moves down, and the sliding rod 410 and the long sliding rod 411 fall down. The long sliding rod 411 leaves the upper trough 2 46, and the upper sliding rod 49 partially falls into the lower trough 1 47. In this way, the rotating sleeve 44 and the rotating rod 43 are locked by the upper sliding rod 49. Rotating the rotating rod 43 drives the rotating disk 51 to rotate 180 degrees through the rotating sleeve 44. During this process, the piston plate 55 and the push rod 56 move along with it. The push rod 56 slides on the top of the control ring 57. When the sedimentation tank 52 rotates to the outflow port 54, the impurities and some oil settled in the sedimentation tank 52 will flow out from the inflow port 53 and the outflow port 54, and then flow down into the collection container along the guide channel 32. Observe the proportion of discharged impurities and oil. If impurities account for more than 80%, repeat the above cleaning steps.

[0049] Repeat the above cleaning steps, rotate the rotating disk 51, and as the sedimentation tank 52 at the outflow port 54 rotates towards the sedimentation port 14, the push rod 56 passes the protrusion at the top of the control ring 57 and pushes the piston plate 55 upward, so that the upper surface of the piston plate 55 is flush with the upper surface of the rotating disk 51, thus venting the air in the sedimentation tank 52. When the sedimentation tank 52 moves to the sedimentation port 14, the oil pressure presses the piston plate 55 down, so that the upper surface of the piston plate 55 is flush with the bottom surface of the inflow port 53.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A pipeline filter for petroleum production, comprising a T-shaped pipe (1) and a filter element (2) disposed within the T-shaped pipe (1), characterized in that: It also includes a bottom cover (3) located at the bottom of the T-tube (1) and a rotating assembly (4) located inside the bottom cover (3). The T-shaped tube (1) specifically includes three parts: an inlet tube (11), an outlet tube (12), and an extension tube (13). The rotating assembly (4) specifically includes a rotating seat (42) set in the bottom wall of the bottom cover (3), a rotating rod (43) set in the rotating seat (42), an extension rod (41) set above the rotating rod (43), and a control connector set in the drainage groove (32) for connecting the extension rod (41) and the rotating rod (43). The inlet pipe (11) is located at the top of the extension pipe (13), and the outlet pipe (12) is located on the side of the connection between the inlet pipe (11) and the outlet pipe (12). The filter element (2) extends from the inside of the inlet pipe (11) to the bottom wall of the extension pipe (13), covering the connecting part of the inlet pipe (11), the extension pipe (13) and the outlet pipe (12). The bottom cover (3) is located at the bottom of the extension pipe (13). The extension rod (41) passes through the extension pipe (13) and connects with the filter element (2). One end of the rotating rod (43) goes down through the bottom cover (3), and the other end goes up and fits against the extension rod (41).

2. The pipeline filter for petroleum production according to claim 1, characterized in that: The filter element (2) specifically includes a cylindrical frame (21), a filter screen (22) disposed on the outside of the cylindrical frame (21), a handle (23) disposed on the top of the cylindrical frame (21), and a bracket (24) disposed on the bottom of the cylindrical frame (21); the cylindrical frame (21) is cylindrical.

3. The pipeline filter for petroleum production according to claim 2, characterized in that: The bottom cover (3) is provided with a cleaning component (5). The cleaning component (5) specifically includes a rotating disk (51) provided in the bottom cover (3), two sedimentation tanks (52) opened on the top of the rotating disk (51), two inlet ports (53) opened on the outside of the rotating disk (51), and an outlet port (54) opened on the outside of the bottom cover (3). The bottom of the extension tube (13) is provided with a sedimentation port (14), which is connected to one of the sedimentation tanks (52). The two sedimentation tanks (52) are symmetrically arranged. The inner flow port (53) is connected to the sedimentation tank (52), and the outer flow port (54) is connected to one of the inner flow ports (53). The rotating sleeve (44) and the rotating rod (43) are connected by a control connector.

4. The pipeline filter for petroleum production according to claim 3, characterized in that: The cleaning assembly (5) also includes a piston plate (55) disposed in the sedimentation tank (52), a push rod (56) disposed at the bottom of the piston plate (55), and a control ring (57) disposed on the bottom wall of the bottom cover (3). The top of the control ring (57) is provided with a protrusion, which is located between the two sedimentation tanks (52) and biased towards the outflow port (54). The push rod (56) presses against the top of the control ring (57). When the push rod (56) is at the top of the protrusion, the upper surface of the piston plate (55) is flush with the upper surface of the rotating disk (51). When the push rod (56) leaves the protrusion, the upper surface of the piston plate (55) is flush with the bottom surface of the inflow port (53).

5. The pipeline filter for petroleum production according to claim 4, characterized in that: Two damping elements (58) are provided at the bottom of the rotating disk (51), and the damping elements (58) are sleeved on the outside of the push rod (56).

6. The pipeline filter for petroleum production according to claim 4, characterized in that: The sedimentation port (14) is located on the side from the central axis of the extension tube (13) toward the outlet tube (12).

7. The pipeline filter for petroleum production according to claim 4, characterized in that: The bottom cover (3) has a drainage groove (32) on its outer side. The drainage groove (32) is located below the sedimentation tank (52) and is connected to the sedimentation tank (52).

8. The pipeline filter for petroleum production according to claim 4, characterized in that: The control connector includes a rotating sleeve (44) disposed at the bottom of the rotating disk (51), an upper groove 1 (45) opened at the bottom of the rotating sleeve (44), an upper groove 2 (46) opened at the bottom of the extension rod (41), a lower groove 1 (47) and a lower groove 2 (48) opened at the top of the rotating rod (43), an upper sliding rod (49) disposed inside the upper groove 1 (45), a lower sliding rod (410) disposed inside the lower groove 1 (47), a long sliding rod (411) disposed inside the lower groove 2 (48), a control groove (412) opened inside the rotating rod (43), a control console (413) disposed inside the control groove (412), and a control rod (414) disposed at the bottom of the control console (413). The rotating sleeve (44) is sleeved on the outside of the extension rod (41). The rotating sleeve (44) extends to the top of the rotating rod (43). The upper groove (45) and the lower groove (47) are concentrically arranged. The upper groove (46) and the lower groove (48) are concentrically arranged. The length of the upper sliding rod (49) is the same as the depth of the upper groove (45). The length of the lower sliding rod (410) is the same as the depth of the lower groove (47). The length of the long sliding rod (411) is greater than the depth of the lower groove (48). The lower groove (47) and the lower groove (48) are both connected to the control groove (412). The control console (413) is supported by the bottom of the lower sliding rod (410) and the long sliding rod (411).

9. The pipeline filter for petroleum production according to claim 8, characterized in that: The upper slide bar (49) and the lower slide bar (410) are both provided with rounded corners at opposite ends.

10. The pipeline filter for petroleum production according to claim 3, characterized in that: The bottom cover (3) is provided with a sealing plate (6), and a through hole (61) is provided on the top of the sealing plate (6). The sealing plate (6) is located on top of the rotating disk (51) and closes the two sedimentation tanks (52). The connecting hole (61) connects the sedimentation port (14) and the sedimentation tank (52).

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