Oil pipeline filtering and unblocking device and using method

Abstract

The invention relates to an oil pipeline filtering and unblocking device and a using method. The device comprises a filtering cylinder; the filter element structure comprises a filter element body, the cleaning assembly structure is rotatably mounted on the side wall of the filter element body and comprises an inner cleaning structure capable of rotatably cleaning the inner wall of the filter element body and an outer cleaning structure capable of rotatably cleaning the outer wall of the filter element body; the cleaning assembly structure is connected with a driving assembly structure for driving the cleaning assembly structure to rotate; a sewage suction pipe group structure is arranged at the lower part of the sewage suction pump group, the sewage suction pipe group structure is inserted into the filter cylinder, and the sewage suction pump group and the sewage suction pipe group structure are used for sucking sundries at the filter element structure in the filter cylinder and filtering the circulating backwashing liquid. The cleaning assembly structure comprising the inner cleaning structure and the outer cleaning structure is used for efficiently cleaning the inner wall and the outer wall of the filter element in a dead-angle-free mode, and compared with the common mode that the filter element in the filter is replaced in the similar technology, the working time of the filter is not affected, and the efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of oil pipeline filtration technology, and in particular to an oil pipeline filtration and unblocking device and its usage method. Background Technology

[0002] With the widespread application of tertiary oil recovery methods, oilfield development has gradually moved from fine-grained development to precision development. Polymer injection, as one of the most widely used methods in tertiary oil recovery, has played a significant role in improving crude oil recovery. However, with the increasing amount and duration of polymer injection, polymer flocs, inorganic scale, and oil sludge gradually form at the bottom of polymer injection wells. These blockages can cause severe clogging of the filter elements in the filter, and manual cleaning is time-consuming, labor-intensive, and incomplete. Frequent replacement will increase costs and time consumption.

[0003] Therefore, based on years of experience and practice in related industries, the inventor proposes an oil pipeline filtration and unclogging device and its usage method to overcome the shortcomings of the prior art. Summary of the Invention

[0004] The purpose of this invention is to provide an oil pipeline filtration and unclogging device and its usage method. Through a cleaning assembly structure including internal and external cleaning structures, the inner and outer walls of the filter element are cleaned efficiently without dead angles. Compared with the commonly used technology of replacing the filter element inside the filter, this invention does not affect the working time of the filter and effectively improves efficiency.

[0005] The objective of this invention is achieved as follows: an oil pipeline filtration and unclogging device, comprising:

[0006] A filter cylinder has an oil inlet on the upper part of its side wall and an oil outlet on the lower part of its side wall. The oil inlet and the oil outlet are connected to an oil pipeline. The lower end of the filter cylinder has a backwash port that allows backwash liquid to flow into the filter cylinder from bottom to top.

[0007] The filter element structure disposed in the filter cylinder includes a cylindrical filter element body with an opening at the top.

[0008] A cleaning assembly structure is rotatably mounted on the side wall of the filter element body, including an inner cleaning structure that can rotatably clean the inner wall of the filter element body and an outer cleaning structure that can rotatably clean the outer wall of the filter element body; a drive assembly structure for driving its rotation is connected to the cleaning assembly structure.

[0009] A sludge suction pump assembly is provided, with a sludge suction pipe assembly structure at the lower part of the sludge suction pump assembly. The sludge suction pipe assembly structure is inserted into the filter cylinder. The sludge suction pump assembly and the sludge suction pipe assembly structure are used to suck up debris and filter circulation backwash liquid from the filter element structure in the filter cylinder.

[0010] In a preferred embodiment of the present invention, a filter element bottom through hole is provided at the lower end of the filter element body; the suction pipe assembly structure includes a main suction pipe, a four-way connector and a short pipe, the upper end of the main suction pipe is connected to the suction pump assembly, one interface of the four-way connector is connected to the lower end of the main suction pipe, two interfaces of the four-way connector are connected to the inner cavity of the filter element body, one interface of the four-way connector is connected to the short pipe, and the lower part of the short pipe passes through the filter element bottom through hole and is located in the filter cylinder.

[0011] In a preferred embodiment of the present invention, the internal cleaning structure includes two first spiral blades arranged in a twisted manner. Each first spiral blade is rotatably attached to the inner wall of the filter element body. The first spiral blades are rotatably connected to the suction pipe assembly structure through first bearings spaced vertically. Each first bearing is fitted with a first bushing. The lower end of the lower first bushing contacts and abuts against the bottom end of the inner cavity of the filter element body.

[0012] In a preferred embodiment of the present invention, the external cleaning structure includes two second spiral blades arranged in a twisted manner. Each second spiral blade is rotatably attached to the outer wall of the filter element body. The second spiral blade is rotatably connected to the position of the suction pipe assembly structure exposed on the filter element body through a second bearing. A second bushing is sleeved on the second bearing, and the upper end of the second bushing contacts and abuts against the lower end of the filter element body.

[0013] In a preferred embodiment of the present invention, the drive assembly structure includes a drive motor, a rotating collar and an inner rotating collar, each of the first spiral blades is connected to the inner rotating collar, each of the second spiral blades is connected to the rotating collar, and the drive motor drives each of the first spiral blades and each of the second spiral blades to rotate through the rotating collar and the inner rotating collar.

[0014] In a preferred embodiment of the present invention, the rotating sleeve and the inner rotating ring are rotatably disposed on the upper part of the filter element body. The rotating sleeve is provided with a first outer ring gear and an inner ring gear, and the inner rotating ring is provided with a second outer ring gear. A first gear is rotatably disposed on the outer side of the rotating sleeve and meshes with the first outer ring gear. A second gear is meshed between the inner ring gear and the second outer ring gear. A drive shaft passes through the first gear and is connected to the drive motor. The drive motor drives the rotating sleeve and the inner rotating ring to rotate through the drive shaft, the first gear, and the second gear.

[0015] In a preferred embodiment of the present invention, the upper end of the filter element body is provided with a mounting ring structure, the lower end of the mounting ring structure is recessed with a mounting groove, the inner rotating ring is located at the upper opening of the filter element body, the inner sidewall of the mounting groove is provided with a drive port for the second gear to pass through, a rotating seat is provided at the upper part of the drive port, and the second gear is hinged to the rotating seat through a connecting shaft; the mounting ring structure is provided with a through shaft hole, a third bearing is provided in the shaft hole, and the drive shaft rotates through the third bearing and then connects to the first gear.

[0016] In a preferred embodiment of the present invention, the lower end of the inner rotating ring is provided with two first connecting ears, the upper ends of the two first spiral blades are respectively fixedly connected to the two first connecting ears, and the two first connecting ears are respectively fixedly connected to the two ends of the first bushing located above; the lower end of the rotating ring is provided with two second connecting ears, and the upper ends of the two second spiral blades are respectively fixedly connected to the two second connecting ears.

[0017] In a preferred embodiment of the present invention, a cylinder head cover is detachably provided at the upper end of the filter cylinder, the drive motor is fixedly provided on the cylinder head cover, the drive shaft is sealed and rotates through the cylinder head cover; the main suction pipe is sealed and passes through the cylinder head cover; an annular baffle is provided inside the filter cylinder, and the filter element body is snapped onto the annular baffle.

[0018] In a preferred embodiment of the present invention, the sludge suction pump assembly includes a water pump, a manual valve, a starting component, and a circulation component. The first end of the manual valve is connected to the upper end of the main sludge suction pipe, and the second end of the manual valve is connected to the water inlet of the water pump. The circulation component includes a circulation tank with an outlet at the bottom. A filter plate is installed inside the circulation tank, and a lid is installed on the upper part of the circulation tank. The lid has a wastewater inlet and an air inlet. The outlet of the water pump is connected to the wastewater inlet, and the backwash port is connected to the outlet via a one-way valve. One end of the starting component is rotatably connected to the upper end of the filter cylinder, and the other end of the starting component is fixedly connected to the manual valve.

[0019] In a preferred embodiment of the present invention, the starting component includes a rotary handle and a double-switch. The double-switch is disposed at the upper end of the filter cylinder. An anti-slip sleeve is fitted on the rotary handle. The upper end of the rotary handle is engaged with the manual valve. The lower end of the rotary handle is rotatably connected to the upper end of the filter cylinder through a rotary base. An abutment plate is provided at the lower end of the rotary handle. The abutment plate slides against the double-switch.

[0020] In a preferred embodiment of the present invention, the filter element body is made of stainless steel, and the first spiral blade, the second spiral blade, the rotating collar, the inner rotating collar, the first gear and the second gear are made of non-metallic materials.

[0021] In a preferred embodiment of the present invention, the first spiral blade and the second spiral blade are provided with spiral brushes that can clean the filter holes of the filter element body.

[0022] The object of the present invention can also be achieved as follows: a method of using the aforementioned oil pipeline filtration and unclogging device includes:

[0023] Step a: Assemble the oil pipeline filter and unblocking device;

[0024] Step b: Connect the oil pipeline filter and unblocking device in series between the oil pipelines. The filter element in the oil pipeline filter and unblocking device filters the flowing oil.

[0025] Step c: When the filter cylinder is clogged, the drive cleaning assembly structure cleans the filter element body inside and out.

[0026] Step d: While cleaning the cleaning assembly structure, the sewage pump unit is simultaneously started to perform suction and filtration circulation operations.

[0027] In a preferred embodiment of the present invention, step c includes: when the filter cylinder is clogged, closing the main oil valve to keep the filter cylinder stationary, pulling the rotating handle to open the manual valve, the contact plate at the bottom of the rotating handle abutting against the two switch buttons of the double switch, starting the drive motor and water pump, the drive shaft driving the first gear to rotate, the first gear driving the rotating ring to rotate, the rotating ring driving the second gear to rotate, the second gear driving the inner rotating ring to rotate, the two second spiral blades rotating under the push of the second connecting ear to clean the debris filaments on the outer wall of the filter element body, and the two first spiral blades rotating under the push of the first connecting ear to clean the debris filaments on the inner wall of the filter element body.

[0028] In a preferred embodiment of the present invention, step d includes: the water pump and the drive motor in step c are turned on synchronously, the two ports of the four-way connector suck up the debris inside the filter element body cavity, and at the same time the lower port of the short pipe sucks up the debris outside the filter element body cavity. The debris inside and outside the filter element body flows to the water pump through the main suction pipe, and is then discharged by the water pump to the filter plate of the circulation tank. The backwash liquid after being filtered by the filter plate enters the lower part of the circulation tank, and is then sucked into the filter cylinder cavity through the pipeline via the one-way valve to form a circulation.

[0029] As described above, the oil pipeline filtration and unclogging device and its usage method of the present invention have the following beneficial effects:

[0030] In this invention, a cleaning assembly structure including internal and external cleaning structures is designed to efficiently clean the inner and outer walls of the filter element body without dead angles, solving the problems of manual cleaning of filter elements, which is time-consuming, labor-intensive, and incomplete. Compared with the commonly used technology of replacing the filter element inside the filter, this invention does not affect the working time of the filter, greatly improving efficiency. While cleaning, the suction pump group is in the open state, and the suction pipe group structure sucks up the debris and backwash liquid from the filter element structure in the filter cylinder, and circulates the backwash liquid, which is economical and environmentally friendly. Attached Figure Description

[0031] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the invention.

[0032] in:

[0033] Figure 1 This is a schematic diagram of the overall structure of the oil pipeline filtration and unblocking device of the present invention.

[0034] Figure 2 This is a schematic diagram of the filter cylinder of the present invention in its transparent state.

[0035] Figure 3 This is a schematic diagram of the overall structure of the filter cylinder of the present invention.

[0036] Figure 4 for Figure 3 Sectional view at point BB.

[0037] Figure 5 This is a schematic diagram of the drive assembly structure and filter body of the present invention.

[0038] Figure 6 This is a schematic diagram of the assembly of the external cleaning structure and the filter element body of the present invention.

[0039] Figure 7 This is a schematic diagram of the overall structure of the cleaning assembly of the present invention.

[0040] Figure 8 for Figure 7 A magnified view of a section at point C.

[0041] Figure 9 This is a partial structural diagram of the drive assembly structure of the present invention.

[0042] Figure 10 This is an exploded view of the overall structure of the suction pipe assembly of the present invention.

[0043] Figure 11 This is an assembly diagram of the suction pump assembly, suction pipe assembly, drive assembly, cleaning assembly, and filter element structure of the present invention.

[0044] Figure 12 This is a schematic diagram of the overall structure of the suction pump unit of the present invention when the pipeline is removed.

[0045] Figure 13 This is an exploded view of the overall structure of the suction pump unit of the present invention when the pipeline is removed.

[0046] Figure 14 for Figure 12 A magnified view of a portion of point A in the middle.

[0047] In the picture:

[0048] 1. Filter tank;

[0049] 11. Annular baffle; 12. Cylinder head cover; 13. Backwash port; 14. Oil inlet; 15. Oil outlet;

[0050] 2. Filter element body;

[0051] 21. Mounting ring structure; 22. Drive port; 23. Rotating seat; 24. Shaft hole;

[0052] 3. Drivetrain structure;

[0053] 31. Rotating collar; 311. First outer ring gear; 312. Second connecting lug;

[0054] 32. Inner rotating ring; 321. Second outer ring gear; 322. First connecting lug;

[0055] 33. Drive shaft;

[0056] 34. Connecting seat;

[0057] 35. Drive motor;

[0058] 36. Third bearing;

[0059] 371. First gear; 372. Second gear;

[0060] 4. Cleaning assembly structure;

[0061] 41. Internal cleaning structure; 411. First bearing; 412. First spiral cutter; 413. First bushing;

[0062] 42. External cleaning structure; 421. Second bearing; 422. Second bushing; 423. Second spiral cutter;

[0063] 5. Sewage suction pump set;

[0064] 51. Water pump;

[0065] 52. Manual valve;

[0066] 53. Activation component; 531. Rotating handle; 5311. Contact plate; 532. Double switch; 533. Anti-slip sleeve; 534. Rotating base;

[0067] 54. Circulation component; 541. Circulation tank; 542. Outlet; 543. Filter plate; 544. Tank lid; 545. Wastewater inlet; 546. Air inlet;

[0068] 6. Structure of the suction pipe assembly;

[0069] 61. Main suction pipe; 62. Four-way connector; 63. Short pipe;

[0070] 7. Check valve. Detailed Implementation

[0071] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0072] The specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "linked" should be interpreted broadly; for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0074] like Figures 1 to 14 As shown, the present invention provides an oil pipeline filtration and unclogging device, comprising:

[0075] like Figure 3 , Figure 4 As shown, filter cylinder 1 has an oil inlet 14 on the upper side wall and an oil outlet 15 on the lower side wall. The oil inlet 14 and the oil outlet 15 are connected between the oil pipeline. The lower end of filter cylinder 1 has a backwash port 13 that allows backwash liquid to flow into the filter cylinder from bottom to top.

[0076] The filter element structure installed in the filter cylinder includes a cylindrical filter element body 2 with an opening at the top;

[0077] The cleaning assembly structure 4 is rotatably mounted on the side wall of the filter element body 2, including an inner cleaning structure 41 that can rotate to clean the inner wall of the filter element body and an outer cleaning structure 42 that can rotate to clean the outer wall of the filter element body; a drive assembly structure 3 that drives its rotation is connected to the cleaning assembly structure 4.

[0078] The suction pump assembly 5 and the suction pipe assembly 6 are inserted into the filter cylinder 1. The suction pump assembly 5 and the suction pipe assembly 6 are used to suck up debris and filter circulation backwash liquid from the filter element structure in the filter cylinder 1.

[0079] The oil pipeline filtration and unclogging device of the present invention, through the design of a cleaning assembly structure including internal and external cleaning structures, can efficiently clean the inner and outer walls of the filter element body without dead angles, solving the problems of manual cleaning of filter elements, which is time-consuming, labor-intensive, and incomplete. Compared with the commonly used technology of replacing the filter element inside the filter, the present invention does not affect the working time of the filter, greatly improving efficiency. While cleaning, the suction pump group is in the open state, and the suction pipe group structure sucks up the debris and backwash liquid from the filter element structure in the filter cylinder, and circulates the backwash liquid, which is economical and environmentally friendly.

[0080] Furthermore, such as Figure 6 , Figure 7 , Figure 10 As shown, the lower end of the filter element body 2 is provided with a filter element bottom through hole; the suction pipe assembly structure 6 includes a main suction pipe 61, a four-way connector 62, and a short pipe 63. The upper end of the main suction pipe 61 is connected to the suction pump assembly 5. One interface of the four-way connector 62 is connected to the lower end of the main suction pipe 61. The interfaces on both sides of the four-way connector 62 are connected to the inner cavity of the filter element body 2. The open interfaces on both sides of the four-way connector 62 can suck up debris filaments on the inner wall of the filter element body 2. One interface of the four-way connector 62 is connected to the short pipe 63. The lower part of the short pipe 63 passes through the filter element bottom through hole and is located inside the filter cylinder 1. The short pipe 63 extends out of the lower end (filter element bottom through hole) of the filter element body 2 and extends beyond it by an appropriate length.

[0081] The suction pipe assembly structure 6 is designed so that the debris scraped off by the inner cleaning structure 41 and the outer cleaning structure 42 can be sucked out of the filter cylinder 1 in a timely manner.

[0082] Furthermore, such as Figure 7 , Figure 10 As shown, the internal cleaning structure 41 includes two first spiral blades 412 arranged in a twisted manner. Each first spiral blade 412 is rotatably attached to the inner wall of the filter element body 2. Each first spiral blade 412 is rotatably connected to the suction pipe assembly structure 6 through first bearings 411 spaced apart vertically. Each first bearing 411 is fitted with a first bushing 413. The lower end of the first bushing 413 located below contacts and abuts against the bottom end of the inner cavity of the filter element body 2.

[0083] Specifically, the upper first bearing 411 is pressed onto the main suction pipe 61, and the lower first bearing 411 is pressed onto the short pipe 63. The lower end of the first bushing 413 connected to the lower first bearing 411 contacts and abuts against the bottom end of the inner cavity of the filter element body 2. The two first bushings 413 are respectively pressed (connected) onto the two first bearings 411. When the two first spiral blades 412 rotate, they scrape off the debris filaments on the inner wall of the filter element body 2, and the debris filaments can flow downwards along the rotation direction of the first spiral blades 412, so that the openings on both sides of the four-way connector 62 can quickly suck away the scraped debris. The first bushing 413 connected to the short pipe 63 can rotate to scrape the debris filaments at the bottom of the filter element body 2, ensuring thorough cleaning without dead corners.

[0084] Furthermore, such as Figure 2 , Figure 6 , Figure 7 , Figure 10 As shown, the external cleaning structure 42 includes two second spiral blades 423 arranged in a twisted manner. Each second spiral blade 423 is rotatably attached to the outer wall of the filter element body 2. One second spiral blade 423 is rotatably connected to the position of the suction pipe assembly structure exposed outside the filter element body 2 (away from the end of the first bearing 411) through a second bearing 421. The second bearing 421 is pressed against the lower part of the short pipe 63 until it is in contact with the lower end (bottom end) of the filter element body 2, so as to realize the axial fixation of the second spiral blade 423 and the suction pipe assembly structure and the circumferential rotational connection.

[0085] A second bushing 422 is fitted onto the second bearing 421, with the upper end of the second bushing 422 contacting and abutting against the lower end of the filter element body 2. Debris and filaments at the lower end of the filter element body 2 can be scraped clean by the rotating second bushing 422, ensuring thorough and efficient cleaning of the filter element body 2 without any blind spots.

[0086] The short tube 63 extends beyond the lower end of the filter element body 2 and is of an appropriate length so as to be able to pick up the debris filaments scraped off the outer wall of the filter element body 2 by the rotation of the second spiral blade 423.

[0087] Furthermore, such as Figure 2 , Figure 11As shown, the drive assembly structure 3 includes a drive motor 35, a rotating collar 31 and an inner rotating collar 32. Each first spiral cutter 412 is connected to the inner rotating collar 32, and each second spiral cutter 423 is connected to the rotating collar 31. The drive motor 35 drives each first spiral cutter 412 and each second spiral cutter 423 to rotate through the rotating collar 31 and the inner rotating collar 32.

[0088] Furthermore, such as Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 11 As shown, the rotating sleeve 31 and the inner rotating ring 32 are rotatably disposed on the upper part of the filter element body 2. The rotating sleeve 31 is provided with a first outer ring gear 311 and an inner ring gear, which together form an inner and outer ring gear structure. The inner rotating ring 32 is provided with a second outer ring gear 321. A first gear 371 that meshes with the first outer ring gear 311 is rotatably disposed on the outer side of the rotating sleeve 31. A second gear 372 that meshes between the inner ring gear and the second outer ring gear 321 is provided. A drive shaft 33 is passed through the first gear 371. The drive shaft 33 is connected to a drive motor 35. The drive motor 35 drives the rotating sleeve 31 and the inner rotating ring 32 to rotate through the drive shaft 33, the first gear 371, and the second gear 372.

[0089] The drive shaft 33 drives the first gear 371 to rotate, the first gear 371 drives the rotating ring 31 to rotate, the rotating ring 31 drives the second gear 372 to rotate, and the second gear 372 drives the inner rotating ring 32 to rotate. The two second spiral blades 423 begin to rotate spirally under the push of the second connecting ear 312 to clean the debris filaments on the outer wall of the filter element body 2. The scraped debris filaments are sucked away through the lower opening of the short tube 63. A detail here is that the debris filaments at the bottom of the filter element body 2 can be scraped clean by the rotating second shaft sleeve 422, ensuring that the filter element body 2 is cleaned without dead angles, cleanly and efficiently.

[0090] Furthermore, such as Figure 5 , Figure 6 , Figure 8 As shown, the upper end of the filter element body 2 is provided with an installation ring structure 21, and the lower end of the installation ring structure 21 is recessed with an installation groove. The inner rotating ring 32 is located at the upper opening of the filter element body 2 (inner side of the installation ring structure 21). The inner sidewall of the installation groove is provided with a drive port 22 for the second gear 372 to pass through. A rotating seat 23 is provided on the upper part of the drive port 22. The second gear 372 is hinged to the rotating seat 23 through a connecting shaft. A through shaft hole 24 is provided on the installation ring structure 21. A third bearing 36 is provided in the shaft hole 24. The drive shaft 33 rotates through the third bearing 36 and then connects to the first gear 371.

[0091] Furthermore, such as Figure 6 , Figure 9As shown, the lower end of the inner rotating ring 32 is provided with two first connecting ears 322, and the upper ends of the two first spiral blades 412 are respectively fixedly connected to the two first connecting ears 322. The two first connecting ears 322 are respectively fixedly connected to the two ends of the first bushing 413 located above (the first bushing 413 connected to the main suction pipe 61). The lower end of the rotating ring 31 is provided with two second connecting ears 312, and the upper ends of the two second spiral blades 423 are respectively fixedly connected to the two second connecting ears 312.

[0092] Furthermore, such as Figure 2 , Figure 3 , Figure 4 As shown, a cylinder head cover 12 is detachably mounted on the upper end of the filter cylinder 1. A drive motor 35 is fixedly mounted on the cylinder head cover 12. A drive shaft 33 is sealed and rotatably passes through the cylinder head cover 12. Specifically, the upper part of the drive shaft 33 is rotatably connected to the cylinder head cover 12 via an oil seal. The main suction pipe 61 is sealed and passes through the cylinder head cover 12, and the upper end of the main suction pipe 61 is fixedly connected to the cylinder head cover 12 via an oil seal. An annular baffle 11 is provided inside the filter cylinder 1, and the filter element body 2 is snapped onto the annular baffle 11.

[0093] The drive assembly structure 3 also includes a connecting seat 34, which is fixed on the cylinder head cover 12. The drive motor 35 is fixed on the connecting seat 34, and the output shaft of the drive motor 35 is fixedly connected to the upper end of the drive shaft 33 through a coupling.

[0094] Furthermore, such as Figure 12 , Figure 13 , Figure 14 As shown, the sludge suction pump assembly 5 includes a water pump 51, a manual valve 52, a starting component 53, and a circulation component 54. The first end of the manual valve 52 is connected to the upper end of the main sludge suction pipe 61, and the second end of the manual valve 52 is connected to the water inlet of the water pump 51. The circulation component 54 includes a circulation tank 541, with an outlet 542 at the bottom of the circulation tank 541. A filter plate 543 is installed inside the circulation tank 541, and a tank cover 544 is installed on the upper part of the circulation tank 541. The tank cover 544 has a wastewater inlet 545 and an air inlet 546. The outlet of the water pump 51 is connected to the wastewater inlet 545, and the backwash port 13 is connected to the outlet 542 through a one-way valve 7. One end of the starting component 53 is rotatably connected to the upper end of the filter cylinder 1, and the other end of the starting component 53 is fixedly connected to the manual valve 52.

[0095] While cleaning, the water pump 51 is also turned on. The two ports of the four-way connector 62 begin to suck up the shredded debris inside the filter element body 2, while the lower port of the short pipe 63 begins to suck up the shredded debris outside the filter element body 2. The shredded debris inside and outside the filter element body 2 flows to the water pump 51 through the main suction pipe 61, and is then discharged by the water pump 51 onto the filter plate 543 of the circulation tank 541. The backwash liquid filtered by the filter plate 543 enters the lower part of the circulation tank 541, and is then sucked into the filter cylinder 1 through the pipeline via the one-way valve 7, forming a circulation. After several filtration cycles, the filter plate 543 in the circulation tank 541 can be removed for cleaning or replacement. When the backwash liquid is too dirty to use, new backwash liquid can be added to the circulation tank 541.

[0096] Furthermore, such as Figure 14 As shown, the starting component 53 includes a rotating handle 531 and a double switch 532. The double switch 532 is located at the upper end of the filter cylinder 1 (on the cylinder head cover 12). The rotating handle 531 is fitted with an anti-slip sleeve 533. The upper end of the rotating handle 531 is engaged with the manual valve 52 (outer end of the handle). The lower end of the rotating handle 531 is rotatably connected to the upper end of the filter cylinder 1 (cylinder head cover 12) through a rotating base 534. The lower end of the rotating handle 531 is provided with an abutment plate 5311, which slides against the double switch 532.

[0097] When the filter cylinder 1 is clogged, the main oil valve is closed to keep the filter cylinder 1 stationary. The manual valve 52 is opened by pulling the rotating handle 531. Then, the contact plate 5311 at the bottom of the handle 531 touches the two switch buttons of the double switch 532. At this time, the drive motor 35 and the water pump 51 are turned on. The inner cleaning structure 41 and the outer cleaning structure 42 scrape the debris on the inner wall of the filter element body 2. At the same time, the water pump 51 is also turned on. The water pump 51 can suck away the cleaned debris in time and filter it through the circulation tank 541 for reuse.

[0098] Furthermore, the filter element body 2 is made of stainless steel; to prevent accidents caused by sparks generated during the rotation of the components of this device during cleaning, the first spiral blade 412, the second spiral blade 423, the rotating collar 31, the inner rotating ring 32, the first gear 371 and the second gear 372 are made of non-metallic materials.

[0099] Furthermore, due to the backwashing action, the filter pores of the filter element will be flushed and unblocked, but some residue will inevitably remain. In order to clean the filter pores of the filter element body 2, spiral brushes are installed on the first spiral blade 412 and the second spiral blade 423. While the spiral blades are scraping, the spiral brushes can clean the filter pores of the filter element body 2, further ensuring the cleanliness of the filter element.

[0100] The method of using the oil pipeline filtration and unclogging device of the present invention includes:

[0101] Step a: Assemble the oil pipeline filtration and unblocking device of the present invention:

[0102] Step a1: Assemble the internal structure of the filter cylinder 1, including assembling the cleaning assembly structure 4, the suction pipe assembly structure 6, and the filter element body 2, and connecting part of the drive assembly structure 3 to the cleaning assembly structure 4, as detailed below:

[0103] Step a11: Install the external cleaning structure 42 onto the filter body 2.

[0104] The lower part of the short tube 63 is inserted through the bottom hole of the filter element body 2, with an appropriate length. Then, the second bearing 421 is pressed tightly against the bottom of the short tube 63 until it is in contact with the bottom of the filter element body 2. Next, the second bushing 422 is pressed tightly onto the second bearing 421. Then, the rotating collar 31 is fitted onto the upper part of the filter element body 2. Next, the two second spiral blades 423 are twisted and rotated onto the outer wall of the filter element body 2. The upper ends of the two second spiral blades 423 are respectively fixed to the two second connecting ears 312 at the lower end of the rotating collar 31. The lower ends of the two second spiral blades 423 are respectively fixed to the two ends of the second bushing 422. The cleaning structure 42 is then installed.

[0105] Step a12: Install the internal cleaning structure 41 onto the filter body 2.

[0106] The second gear 372 is installed below the rotating seat 23 on the upper part of the drive port 22, and the second gear 372 meshes with the inner ring gear of the rotating sleeve 31. Then, a first bearing 411 is pressed on the upper part of the short tube 63 and fits against the bottom end of the inner cavity of the filter element body 2. There are two first spiral blades 412, which together form a twisted spiral structure. The bottom ends of the two first spiral blades 412 are respectively fixed to the two ends of a first bushing 413. Then, the first bushing 413 is pressed on the first bearing 411 on the short tube 63, and the lower end of the first bushing 413 contacts and abuts against the bottom end of the inner cavity of the filter element body 2.

[0107] Then, install the four-way connector 62 on the upper end of the short pipe 63, insert the main suction pipe 61 into the upper end of the four-way connector 62, and fit the other first bushing 413 (the upper first bushing 413) with its opening facing upward onto the main suction pipe 61. Press the other first bearing 411 onto the main suction pipe 61 and press the first bearing 411 into the first bushing 413. Install the inner rotating ring 32 at the upper opening of the filter body 2 and adjust the second gear 372 below the rotating seat 23 to mesh with the second outer ring gear 321 of the inner rotating ring 32. Then, fix the upper ends of the two first spiral blades 412 and the two ends of the first bushing 413 on the main suction pipe 61 onto the two first connecting ears 322 at the lower part of the inner rotating ring 32, respectively. At this point, the inner cleaning structure 41 is installed.

[0108] Step a13: Connect drive shaft 33 and first gear 371:

[0109] The lower end of the drive shaft 33 is passed through the third bearing 36 in the shaft hole 24 on the mounting ring structure 21. The first gear 371 is installed on the lower end of the drive shaft 33, and the first gear 371 is adjusted to mesh with the first outer ring gear 311 on the rotating ring 31.

[0110] Step a2, Installation of the external structure of the filter cylinder:

[0111] The entire assembly completed in step a1 is snapped into the annular baffle 11 of the filter cylinder 1 (in the slot at the center of the annular baffle 11). The cylinder head sealing gasket (existing technology) is placed at the top of the filter cylinder 1. The two oil seals of different sizes on the cylinder head cover 12 are passed through the upper ends of the drive shaft 33 and the main suction pipe 61, respectively. The cylinder head cover 12 is fixed at the top of the filter cylinder 1. The drive motor 35 is fixed to the cylinder head cover 12 through the connecting seat 34. The output shafts of the drive shaft 33 and the drive motor 35 are fixedly connected through the coupling. The manual valve 52 and the upper end of the main suction pipe 61 are connected through the pipeline. The water inlet of the water pump 51 and the manual valve 52 are connected through the pipeline. The water outlet of the water pump 51 and the sewage inlet 545 of the circulation tank 541 are connected through the pipeline. The one-way valve 7 and the outlet 542 at the bottom of the circulation tank 541 are connected through the pipeline.

[0112] Rotate the handle 531 onto the cylinder head cover 12, and engage the upper part of the handle 531 with the outer end of the handle of the manual valve 52. Adjust the installation position and depth of the double switch 532 on the cylinder head cover 12 so that when the manual valve 52 is opened, the contact plate 5311 at the lower part of the handle 531 just touches the two switch buttons of the double switch 532, so as to start the water pump 51 and the drive motor 35 at the same time.

[0113] Step b: Connect the oil pipeline filtration and unblocking device in series between the oil pipelines: the oil inlet of filter cylinder 1 is connected to the pipeline in the direction of oil inflow, and the oil outlet of filter cylinder 1 is connected to the pipeline in the direction of oil outflow. The filter element body 2 in the oil pipeline filtration and unblocking device filters the flowing oil.

[0114] Step c: When the filter tank 1 is clogged, the drive cleaning assembly structure 4 cleans the filter element body 2 inside and out, specifically including:

[0115] When the filter cylinder 1 is clogged, the main oil valve is closed to keep the filter cylinder 1 stationary. The manual valve 52 is opened by pulling the rotating handle 531. Then, the contact plate 5311 at the bottom of the rotating handle 531 contacts the two switch buttons of the double switch 532. At this time, the drive motor 35 and the water pump 51 are started. The drive shaft 33 drives the first gear 371 to rotate. The first gear 371 drives the rotating ring 31 to rotate. The rotating ring 31 drives the second gear 372 to rotate. The second gear 372 drives the inner rotating ring 32 to rotate. The two second spiral blades 423 start to rotate under the push of the second connecting ear 312 to clean the debris on the outer wall of the filter element body 2. The two first spiral blades 412 start to rotate under the push of the first connecting ear 322 to clean the debris on the inner wall of the filter element body 2.

[0116] Step d, while cleaning the assembly structure 4, the suction pump unit 5 simultaneously starts suction and filtration circulation operations, specifically including:

[0117] The water pump 51 and the drive motor 35 in step c are turned on synchronously. The two ports of the four-way connector 62 begin to suck up the shredded debris inside the filter body 2 cavity. At the same time, the lower port of the short pipe 63 begins to suck up the shredded debris outside the filter body 2 cavity. The shredded debris inside and outside the filter body 2 flows to the water pump 51 through the main suction pipe 61 and is then discharged by the water pump 51 onto the filter plate 543 of the circulation tank 541. The backwash liquid filtered by the filter plate 543 enters the lower part of the circulation tank 541 and is then sucked into the filter cylinder 1 cavity through the pipeline via the one-way valve 7 to form a circulation.

[0118] After several filtration cycles, remove the filter plate 543 from the circulation tank 541 for cleaning or replacement. When the backwash solution becomes turbid and unusable, replace it with new backwash solution into the circulation tank 541. Both cleaning or replacing the filter plate 543 in the circulation tank and replacing the backwash solution are performed during normal filtration. Compared to replacing the filter element, this operation does not affect the filter's operating time, greatly improving efficiency.

[0119] As described above, the oil pipeline filtration and unclogging device and its usage method of the present invention have the following beneficial effects:

[0120] In this invention, a cleaning assembly structure including internal and external cleaning structures is designed to efficiently clean the inner and outer walls of the filter element body without dead angles, solving the problems of manual cleaning of filter elements, which is time-consuming, labor-intensive, and incomplete. Compared with the commonly used technology of replacing the filter element inside the filter, this invention does not affect the working time of the filter, greatly improving efficiency. While cleaning, the suction pump group is in the open state, and the suction pipe group structure sucks up the debris and backwash liquid from the filter element structure in the filter cylinder, and circulates the backwash liquid, which is economical and environmentally friendly.

[0121] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A filter and unclogging device for oil pipelines, characterized in that, include: A filter cylinder has an oil inlet on the upper part of its side wall and an oil outlet on the lower part of its side wall. The oil inlet and the oil outlet are connected to an oil pipeline. The lower end of the filter cylinder has a backwash port that allows backwash liquid to flow into the filter cylinder from bottom to top. The filter element structure disposed in the filter cylinder includes a cylindrical filter element body with an opening at the top. A cleaning assembly structure is rotatably mounted on the side wall of the filter element body, including an inner cleaning structure that can rotatably clean the inner wall of the filter element body and an outer cleaning structure that can rotatably clean the outer wall of the filter element body; a drive assembly structure for driving its rotation is connected to the cleaning assembly structure. A sludge suction pump assembly is provided, with a sludge suction pipe assembly structure at the lower part of the sludge suction pump assembly. The sludge suction pipe assembly structure is inserted into the filter cylinder. The sludge suction pump assembly and the sludge suction pipe assembly structure are used to suck up debris and filter circulation backwash liquid from the filter element structure in the filter cylinder.

2. The oil pipeline filtration and unblocking device as described in claim 1, characterized in that, The filter element body has a bottom through hole at its lower end; the suction pipe assembly includes a main suction pipe, a four-way connector, and a short pipe. The upper end of the main suction pipe is connected to the suction pump assembly. One port of the four-way connector is connected to the lower end of the main suction pipe. Two ports of the four-way connector are connected to the inner cavity of the filter element body. One port of the four-way connector is connected to the short pipe. The lower part of the short pipe passes through the bottom through hole of the filter element and is located inside the filter cylinder.

3. The oil pipeline filtration and unblocking device as described in claim 2, characterized in that, The internal cleaning structure includes two first spiral blades arranged in a twisted manner. Each first spiral blade is rotatably attached to the inner wall of the filter element body. The first spiral blades are rotatably connected to the suction pipe assembly structure through first bearings spaced vertically. Each first bearing is fitted with a first bushing. The lower end of the lower first bushing contacts and abuts against the bottom end of the inner cavity of the filter element body.

4. The oil pipeline filtration and unblocking device as described in claim 3, characterized in that, The external cleaning structure includes two second spiral blades arranged in a twisted manner. Each second spiral blade is rotatably attached to the outer wall of the filter element body. The second spiral blade is rotatably connected to the position of the suction pipe assembly structure exposed on the filter element body through a second bearing. A second bushing is sleeved on the second bearing, and the upper end of the second bushing contacts and abuts against the lower end of the filter element body.

5. The oil pipeline filtration and unblocking device as described in claim 4, characterized in that, The drive assembly structure includes a drive motor, a rotating collar, and an inner rotating ring. Each first spiral blade is connected to the inner rotating ring, and each second spiral blade is connected to the rotating collar. The drive motor drives each first spiral blade and each second spiral blade to rotate through the rotating collar and the inner rotating ring.

6. The oil pipeline filtration and unblocking device as described in claim 5, characterized in that, The rotating collar and the inner rotating ring are rotatably disposed on the upper part of the filter element body. The rotating collar is provided with a first outer ring gear and an inner ring gear, and the inner rotating ring is provided with a second outer ring gear. A first gear is rotatably disposed on the outer side of the rotating collar and meshes with the first outer ring gear. A second gear is meshed between the inner ring gear and the second outer ring gear. A drive shaft passes through the first gear and is connected to the drive motor. The drive motor drives the rotating collar and the inner rotating ring to rotate through the drive shaft, the first gear, and the second gear.

7. The oil pipeline filtration and unblocking device as described in claim 6, characterized in that, The upper end of the filter element body is provided with a mounting ring structure, and the lower end of the mounting ring structure is recessed with a mounting groove. The inner rotating ring is located at the upper opening of the filter element body. The inner sidewall of the mounting groove is provided with a drive port for the second gear to pass through. A rotating seat is provided above the drive port. The second gear is hinged to the rotating seat through a connecting shaft. The mounting ring structure is provided with a through shaft hole. A third bearing is provided in the shaft hole. The drive shaft rotates through the third bearing and then connects to the first gear.

8. The oil pipeline filtration and unblocking device as described in claim 6, characterized in that, The lower end of the inner rotating ring is provided with two first connecting ears, the upper ends of the two first spiral blades are respectively fixedly connected to the two first connecting ears, and the two first connecting ears are respectively fixedly connected to the two ends of the first bushing located above; the lower end of the rotating ring is provided with two second connecting ears, and the upper ends of the two second spiral blades are respectively fixedly connected to the two second connecting ears.

9. The oil pipeline filtration and unblocking device as described in claim 6, characterized in that, The upper end of the filter cylinder is detachably equipped with a cylinder head cover, the drive motor is fixedly mounted on the cylinder head cover, and the drive shaft passes through the cylinder head cover in a sealed manner and rotates through the cylinder head cover; the main suction pipe passes through the cylinder head cover in a sealed manner; the filter cylinder is provided with an annular baffle, and the filter element body is snapped onto the annular baffle.

10. The oil pipeline filtration and unblocking device as described in claim 2, characterized in that, The sludge suction pump assembly includes a water pump, a manual valve, a starting component, and a circulation component. The first end of the manual valve is connected to the upper end of the main sludge suction pipe, and the second end of the manual valve is connected to the water inlet of the water pump. The circulation component includes a circulation tank with an outlet at the bottom. A filter plate is installed inside the circulation tank, and a lid is installed on the upper part of the circulation tank. The lid has a wastewater inlet and an air inlet. The water outlet of the water pump is connected to the wastewater inlet, and the backwash port is connected to the outlet via a one-way valve. One end of the starting component is rotatably connected to the upper end of the filter cylinder, and the other end of the starting component is fixedly connected to the manual valve.

11. The oil pipeline filtration and unblocking device as described in claim 10, characterized in that, The starting assembly includes a rotary handle and a double-switch. The double-switch is located at the upper end of the filter cylinder. The rotary handle is fitted with an anti-slip sleeve. The upper end of the rotary handle is engaged with the manual valve. The lower end of the rotary handle is rotatably connected to the upper end of the filter cylinder via a rotary base. The lower end of the rotary handle is provided with an abutment plate, which slides against the double-switch.

12. The oil pipeline filtration and unblocking device as described in claim 6, characterized in that, The filter element body is made of stainless steel, while the first spiral blade, the second spiral blade, the rotating collar, the inner rotating ring, the first gear, and the second gear are made of non-metallic materials.

13. The oil pipeline filtration and unblocking device as described in claim 4, characterized in that, The first and second spiral blades are equipped with spiral brushes that can clean the filter holes of the filter element body.

14. A method of using the oil pipeline filtration and unclogging device as described in any one of claims 1-13, characterized in that, include: Step a: Assemble the oil pipeline filter and unblocking device; Step b: Connect the oil pipeline filtration and unblocking device in series between oil pipelines. The filter element body in the oil pipeline filtration and unblocking device filters the flowing oil. Step c: When the filter cylinder is clogged, drive the cleaning assembly structure to clean the filter element body inside and out; Step d: While cleaning the cleaning assembly structure, the sewage pump unit is simultaneously started to perform suction and filtration circulation operations.

15. The method of using the oil pipeline filtration and unblocking device as described in claim 14, characterized in that, Step c includes: when the filter cylinder is clogged, closing the main oil valve to keep the filter cylinder stationary, pulling the rotating handle to open the manual valve, the contact plate at the bottom of the rotating handle abutting against the two switch buttons of the double switch, starting the drive motor and water pump, the drive shaft driving the first gear to rotate, the first gear driving the rotating ring to rotate, the rotating ring driving the second gear to rotate, the second gear driving the inner rotating ring to rotate, the two second spiral blades rotating under the push of the second connecting ear to clean the debris filaments on the outer wall of the filter element body, and the two first spiral blades rotating under the push of the first connecting ear to clean the debris filaments on the inner wall of the filter element body.

16. The method of using the oil pipeline filtration and unblocking device as described in claim 15, characterized in that, Step d includes: the water pump and the drive motor in step c are turned on synchronously, the two ports of the four-way connector suck up the debris inside the filter element body cavity, and at the same time the lower port of the short pipe sucks up the debris outside the filter element body cavity. The debris inside and outside the filter element body flows to the water pump through the main suction pipe, and is then discharged by the water pump to the filter plate of the circulation tank. The backwash liquid after being filtered by the filter plate enters the lower part of the circulation tank, and is then sucked into the filter cylinder cavity through the pipeline via the one-way valve to form a circulation.

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