A backwash three-phase separator

Abstract

The invention belongs to the field of oilfield ground processing equipment, and specifically is a backwashing three-phase separator, comprising a separation device; an inner side wall of the separation device is fixedly connected to a crude oil inlet pipe; an end of the separation device is fixedly connected to a backwashing pipe; the mined crude oil is rotated and filtered by a set metal filter roller to separate mud and sand impurities from the crude oil, and the crude oil is preheated in conjunction with a No. 1 heating wire and a No. 2 heating wire to further reduce the clogging of the metal filter roller holes by impurities when the crude oil is viscous, and then a collision ball is used to vibrate the side wall of the metal filter roller to reduce the adhesion effect of impurities, and a metal scraper is used in conjunction with a soft brush to scrape and clean the impurities on the side wall of the metal filter roller to reduce the amount of impurities attached to the side wall of the metal filter roller, and finally the limiting effect of a limiting plate and the impact and vibration effect of a knocking ball are used to reduce the adhesion of impurities to the side wall of the metal scraper.

Description

Technical Field

[0001] The invention belongs to the field of oilfield ground processing equipment, in particular to a backwashing type three-phase separator. Background Art

[0002] The three-phase separator is a device used to separate the oil, gas and water phases of the extracted crude oil and measure the output. Its shape is generally divided into vertical and horizontal types, and some three-phase separators also have backwashing function.

[0003] A Chinese patent with publication number CN105087056B discloses a three-phase separator, which is provided with a tank body plate, etc. The inner cavity of the tank body is divided into a gas-liquid separation chamber and an oil-water separation chamber by a partition, a gas return pipe is provided between the top of the cyclone separator and the top of the gas-liquid separation chamber, a spiral plate is provided on the inner wall of the cylindrical body of the cyclone separator, a distributor is provided at the lower part of the oil-water separation chamber, and a liquid delivery pipe is provided between the lower part of the gas-liquid separation chamber and the distributor. This patent is mainly used for the three-phase separation of oil, gas and water in crude oil extracted from oil fields and oil wells.

[0004] When oil fields and oil wells are producing crude oil, it is found that the crude oil is mixed with a large amount of silt impurities. When using a backwash three-phase separator for separation, a large amount of silt impurities mixed with the crude oil are easy to adhere to and clog the filter screen, thereby affecting the filtration of impurities in the crude oil, and in severe cases affecting the efficiency of crude oil separation.

[0005] To this end, the present invention provides a backwashing three-phase separator. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a backwashing three-phase separator described in the present invention comprises a separation device; a crude oil inlet pipe is fixedly connected to the inner side wall of the separation device; a backwashing pipe is fixedly connected to the end of the separation device; a servo motor is fixedly connected to the inside of the separation device; a rotating shaft is fixedly connected to the output end of the servo motor, and the rotating shaft is rotatably connected to the inner side wall of the separation device; a metal filter roller is fixedly connected to the side wall of the rotating shaft, and the side wall of the metal filter roller is in contact with the inner wall of the separation device; after the metal filter roller rotates for double-layer filtration, a large amount of mud and sand impurities are filtered on the side wall of the metal filter roller, and the mud and sand impurities scrape and fall off the side wall of the separation device as the metal filter roller rotates, further reducing the phenomenon of mud and sand impurities adhering to the side wall of the metal filter roller to cause blockage. At the same time, when the holes of the metal filter roller are blocked, water can be poured into the backwashing pipe for backwashing, and the output end of the servo motor rotates in the opposite direction to reduce the impact caused by the blockage of the holes of the metal filter roller.

[0008] Preferably, a metal rod is fixedly connected to the side wall of the rotating shaft; a No. 1 heating wire is installed inside the metal rod; a plurality of sets of heat-conducting metal frames are fixedly connected to the side wall of the metal rod, and the heat-conducting metal frames are fixedly connected to the inner wall of the metal filter roller; a No. 2 heating wire is installed on the inner wall of the crude oil inlet pipe; the No. 2 heating wire preheats the incoming crude oil to reduce the density of the crude oil, further reducing the large amount of adhesion when impacting the side wall of the metal filter roller, and the heat generated by the No. 1 heating wire is transmitted to the side wall of the metal filter roller through the metal rod and the heat-conducting metal frame, further reducing the adhesion of crude oil mixed with mud and impurities, thereby facilitating the filtration of crude oil.

[0009] Preferably, a soft metal strip is fixedly connected to the side wall of the heat-conducting metal frame; a collision ball is fixedly connected to the bottom end of the soft metal strip; the inner side wall of the separation device is rotatably connected to a No. 1 torsion spring; a metal scraper is fixedly connected to the side wall of the No. 1 torsion spring; the mud and sand impurities are scraped off, further reducing the mud and sand impurities adhering to the side wall of the metal filter roller to affect the filtering effect of the crude oil; when the impurities are tightly adhered, the metal scraper will be scraped and rotated with the No. 1 torsion spring to enhance the effect of scraping impurities, and at the same time cooperate with the heating effect of the No. 1 heating wire and the No. 2 heating wire to enhance the anti-adhesion effect.

[0010] Preferably, the side wall of the metal scraper is fixedly connected to a brush rack; the side wall of the brush rack is fixedly connected to multiple groups of soft brushes, and the soft brushes fit the side wall of the metal filter roller; the side wall of the metal scraper is fixedly connected to a limiting plate; the side wall of the limiting plate is fixedly connected to an elastic member No. 1, and the elastic member No. 1 is connected to the side wall of the metal scraper; impurities on the side wall of the hole are cleaned and scraped off, and when the metal scraper scrapes the impurities adhered to the side wall of the metal filter roller, the metal scraper is blocked from falling by the limiting plate as it scrapes off, and cooperates with the elastic member No. 1 to support the limiting plate, thereby enhancing the scraping effect of the metal scraper on the impurities.

[0011] Preferably, multiple groups of elastic pull ropes are fixed to the inside of the metal scraper; the side walls of the elastic pull ropes are sleeved with knocking balls and are located in the middle of the elastic pull ropes; the No. 1 torsion spring quickly drives the metal scraper to reset, and when resetting, the knocking balls on the side walls of the elastic pull ropes vibrate and hit the inner wall of the metal scraper, causing the metal scraper to vibrate, thereby reducing the adhesion of impurities to the side walls of the metal scraper.

[0012] Preferably, a filter screen is fixedly connected to the inner wall of the separation device; a No. 2 torsion spring is rotatably connected to the inner wall of the separation device; a guide plate is fixedly connected to the side wall of the No. 2 torsion spring; a sedimentation tube is fixedly connected to the interior of the separation device; a sealing plug is threadedly connected to the inner wall of the sedimentation tube; as the crude oil is continuously flushed into the internal storage of the sedimentation tube, the sealing plug seals the sedimentation tube, and at the same time, when a large amount of crude oil is filtered from the channel under the metal filter roller, the guide plate will be pressed to rotate with the No. 2 torsion spring, and the guide plate is installed in conjunction with the inclined surface of the filter screen to achieve a diversion effect, thereby reducing the crude oil entering the interior of the sedimentation tube and being stored with impurities.

[0013] Preferably, the inner side wall of the separation device is rotatably connected to a sealing rotating plate; the side wall of the sealing rotating plate is fixedly connected to a No. 2 elastic member; the inner side wall of the separation device is fixedly connected to a limiting block, and one end of the No. 2 elastic member is fixedly connected to the side wall of the limiting block; when too much impurities accumulate, the sealing rotating plate will be squeezed to rotate on the inner side wall of the separation device, and the No. 2 elastic member will shrink and be stressed, the limiting block plays a role in fixing the No. 2 elastic member, the flow port at the sedimentation tube will open, and the impurities will roll into the internal storage of the sedimentation tube, and when the impurities roll back, the extrusion force gradually decreases, and the No. 2 elastic member squeezes the sealing rotating plate to reset and continue to block the flow port.

[0014] Preferably, the inner side wall of the separation device is fixedly connected to a fixing frame, and is located above the filter screen; the inner side wall of the fixing frame is slidably connected to a sliding rod; the side wall of the sliding rod is sleeved with a No. 3 elastic part; the bottom end of the sliding rod is fixedly connected to a vibration ball; an auxiliary component is arranged inside the separation device, and the auxiliary component is used to drive the vibration ball to vibrate the filter screen; the auxiliary component relies on the magnetic force to drive the sliding rod to continuously slide up and down on the inner side wall of the fixing frame, and the vibration ball at the bottom end of the sliding rod slides down and hits the end face of the filter screen to generate vibration, thereby reducing the adhesion of impurities and facilitating the falling off of impurities, and the No. 3 elastic part has the effect of resetting the sliding rod.

[0015] Preferably, the auxiliary component includes a matching impact block, a No. 1 magnetic component and a No. 2 magnetic component; the matching impact block is fixedly connected to the end of the filter screen plate and is located below the vibrating ball; the No. 1 magnetic component is fixedly connected to the inside of the guide plate; the No. 2 magnetic component is fixedly connected to the end of the sliding rod; the No. 1 magnetic component and the No. 2 magnetic component can repel each other when they are close to each other; the No. 2 magnetic component presses down the sliding rod to drive the vibrating ball to collide with the matching impact block, further improving the anti-adhesion effect on impurities, and at the same time, when the impact force of the crude oil is reduced, the No. 3 elastic component squeezes the No. 2 magnetic component to reset it, and repels the No. 1 magnetic component to drive the guide plate to quickly reset.

[0016] Preferably, a connecting pull rope is fixedly connected to the inner side wall of the separation device; one end of the connecting pull rope is fixedly connected to the side wall of the sealing rotary plate; the connecting pull rope is used in conjunction with the No. 2 elastic member to pull and support the force of the sealing rotary plate, and in conjunction with the shielding effect of the guide plate, the crude oil attached to the impurities on the side wall of the sealing rotary plate can be filtered downstream to the maximum extent, thereby reducing the amount of crude oil entering the sedimentation tube for storage.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The backwash three-phase separator described in the present invention rotates and filters the mined crude oil through the provided metal filter roller to separate the silt impurities from the crude oil, and cooperates with the No. 1 heating wire and the No. 2 heating wire to preheat the crude oil to further reduce the clogging of the holes of the metal filter roller by impurities when the crude oil is viscous. Then, the side wall of the metal filter roller is vibrated by a collision ball to reduce the adhesion of impurities. The metal scraper is scraped and cleaned with a soft brush to reduce the amount of impurities adhering to the side wall of the metal filter roller. Finally, the limiting effect of the limiting plate and the impact and vibration effect of the knocking ball are used to reduce the adhesion of impurities to the side wall of the metal scraper.

[0019] 2. The backwash three-phase separator described in the present invention filters the impurities and crude oil that have been scraped off the side wall of the metal filter roller by the filter screen plate, and separates the impurities from the crude oil. The impurities accumulate on the side wall of the sealing rotary plate. When the impurities accumulate more, a large amount of impurities squeeze the sealing rotary plate. After the sealing rotary plate squeezes the No. 2 elastic part and rotates, the impurities roll into the sedimentation tube and are stored for sedimentation, which has the effect of separating the impurities from the crude oil. When the impurities are mixed with a small amount of crude oil and adhere to the end face of the filter screen plate, as the guide plate is impacted and rotated downward by the crude oil, the No. 1 magnetic part repels the No. 2 magnetic part with the same sex, and drives the vibration ball to continuously impact the matching impact block on the filter screen plate to vibrate, thereby reducing the adhesion of impurities and accelerating the filtering effect on the crude oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a three-dimensional diagram of the separation device in the present invention;

[0022] Figure 2 It is a schematic diagram of the rotating shaft structure in the present invention;

[0023] Figure 3 is a partial cross-sectional view of the separation device in the present invention;

[0024] Figure 4 yes Figure 3 A magnified image of point A;

[0025] Figure 5 yes Figure 3 A magnified view of point B;

[0026] Figure 6 It is a schematic diagram of the sealing rotating plate structure in the present invention.

[0027] In the figure: 1. Separation equipment; 11. Crude oil inlet pipe; 12. Backwash pipe; 13. Servo motor; 14. Rotating shaft; 15. Metal filter roller; 2. Metal rod; 21. No. 1 heating wire; 22. Heat-conducting metal frame; 23. No. 2 heating wire; 3. Soft metal strip; 31. Collision ball; 32. No. 1 torsion spring; 33. Metal scraper; 4. Brush frame; 41. Soft brush; 42. Limit plate; 43. No. 1 spring 1. Elastic part; 2. Elastic pull rope; 3. Knocking ball; 4. Filter screen; 5. Magnetic part No. 1; 6. Magnetic part No. 2; 7. Sealing plug; 8. Sealing rotating plate; 9. Elastic part No. 2; 10. Limiting block; 11. Fixed frame; 12. Sliding rod; 13. Elastic part No. 3; 14. Vibrating ball; 15. Matching impact block; 16. Magnetic part No. 1; 17. Magnetic part No. 2; 18. Connecting pull rope. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] Embodiment 1

[0030] like Figures 1 to 3 As shown, a backwashing three-phase separator described in an embodiment of the present invention includes a separation device 1; a crude oil inlet pipe 11 is fixedly connected to the inner wall of the separation device 1; a backwashing pipe 12 is fixedly connected to the end of the separation device 1; a servo motor 13 is fixedly connected to the inside of the separation device 1; a rotating shaft 14 is fixedly connected to the output end of the servo motor 13, and the rotating shaft 14 is rotatably connected to the inner wall of the separation device 1; a metal filter roller 15 is fixedly connected to the side wall of the rotating shaft 14, and the side wall of the metal filter roller 15 is in contact with the inner wall of the separation device 1; when crude oil is extracted from an oil field well, it is found that a large amount of silt impurities are mixed in the crude oil. When the separation device 1 is used for separation, the crude oil delivery pipe is connected to the crude oil inlet pipe 11, and the crude oil is mixed with silt impurities. Entering the internal separation of the separation device 1, the output end of the servo motor 13 drives the rotating shaft 14 to rotate clockwise, and the metal filter roller 15 rotates with the rotating shaft 14 on the inner wall of the separation device 1. The silt impurities mixed with the crude oil impact on the metal filter roller 15 for filtration. After the metal filter roller 15 rotates for double-layer filtration, a large amount of silt impurities are filtered on the side wall of the metal filter roller 15. The silt impurities scrape and fall off the side wall of the separation device 1 as the separation device 1 rotates, further reducing the phenomenon of silt impurities adhering to the side wall of the metal filter roller 15 and causing blockage. At the same time, when the holes of the metal filter roller 15 are blocked, the backwashing pipe 12 can be used to inject water for backwashing, and the output end of the servo motor 13 rotates in the opposite direction to reduce the impact of the blockage of the holes of the metal filter roller 15.

[0031] The side wall of the rotating shaft 14 is fixedly connected with a metal rod 2; a No. 1 electric heating wire 21 is installed inside the metal rod 2; a plurality of groups of heat-conducting metal frames 22 are fixedly connected to the side wall of the metal rod 2, and the heat-conducting metal frames 22 are fixedly connected to the inner side wall of the metal filter roller 15; a No. 2 electric heating wire 23 is installed on the inner side wall of the crude oil inlet pipe 11; when the crude oil is relatively thick and mixed with mud and sand impurities and is filtered by the metal filter roller 15, the mud and sand impurities adhere to the side wall of the metal filter roller 15 and block the holes of the metal filter roller 15, The No. 1 heating wire 21 inside the metal rod 2 and the No. 2 heating wire 23 inside the crude oil inlet pipe 11 generate heat at the same time. The heat can only reduce the density of the crude oil. The No. 2 heating wire 23 preheats the incoming crude oil to reduce the density of the crude oil, further reducing the large amount of adhesion when impacting the side wall of the metal filter roller 15. The heat of the No. 1 heating wire 21 is transmitted to the side wall of the metal filter roller 15 through the metal rod 2 and the heat-conducting metal frame 22, further reducing the adhesion of crude oil mixed with mud and impurities, and facilitating the filtration of crude oil.

[0032] like Figures 1 to 4 As shown, the side wall of the heat-conducting metal frame 22 is fixedly connected with a soft metal strip 3; the bottom end of the soft metal strip 3 is fixedly connected with a collision ball 31; the inner side wall of the separation device 1 is rotatably connected with a No. 1 torsion spring 32; the side wall of the No. 1 torsion spring 32 is fixedly connected with a metal scraper 33; when the mud and sand impurities in the crude oil adhere to the side wall of the metal filter roller 15, the metal filter roller 15 rotates and drives the soft metal strip 3 to swing continuously, and the collision ball 31 swings at the bottom end of the soft metal strip 3 and hits the metal filter roller The inner wall of the metal filter roller 15 is used to loosen the sand impurities attached to the side wall of the metal filter roller 15, and then the metal scraper 33 is used to scrape the side wall of the metal filter roller 15 to scrape the sand impurities off, further reducing the sand impurities attached to the side wall of the metal filter roller 15 to affect the filtering effect of crude oil. When the impurities are tightly adhered, the metal scraper 33 will be scraped and rotated with the No. 1 torsion spring 32 to enhance the scraping effect of impurities. At the same time, the heating effect of the No. 1 heating wire 21 and the No. 2 heating wire 23 is combined to enhance the anti-adhesion effect.

[0033] The side wall of the metal scraper 33 is fixedly connected with a brush holder 4; the side wall of the brush holder 4 is fixedly connected with multiple groups of soft brushes 41, and the soft brushes 41 fit the side wall of the metal filter roller 15; the side wall of the metal scraper 33 is fixedly connected with a limiting plate 42; the side wall of the limiting plate 42 is fixedly connected with a No. 1 elastic member 43, and the No. 1 elastic member 43 is connected to the side wall of the metal scraper 33; when the impurities filtered by the metal filter roller 15 adhere to the side wall of the hole, as the metal filter roller 15 rotates, the multiple groups of soft brushes 41 fixedly connected to the side wall of the brush holder 4 continuously scrape and clean the inner side wall of the metal filter roller 15, and the impurities on the side wall of the hole are scraped and dropped, and when the metal scraper 33 scrapes the impurities adhered to the side wall of the metal filter roller 15, the metal scraper 33 is stopped from falling by the limiting plate 42 as it is scraped off, and cooperates with the No. 1 elastic member 43 to support the limiting plate 42, thereby enhancing the scraping effect of the metal scraper 33 on the impurities.

[0034] like Figure 4 As shown, the metal scraper 33 is fixedly connected to the inside with multiple groups of elastic pull ropes 5; the side wall of the elastic pull rope 5 is sleeved with a knocking ball 51, and is located in the middle position of the elastic pull rope 5; when impurities adhere to the side wall of the metal filter roller 15 more tightly, the impurities are scraped by the metal scraper 33, and the metal scraper 33 rotates with the extrusion force to fit the side wall of the metal filter roller 15 more closely. After the impurities are scraped, the No. 1 torsion spring 32 quickly drives the metal scraper 33 to reset. During the reset, the knocking ball 51 on the side wall of the elastic pull rope 5 vibrates and hits the inner wall of the metal scraper 33, causing the metal scraper 33 to vibrate, thereby reducing the impurities adhering to the side wall of the metal scraper 33.

[0035] like Figures 1 to 5 As shown, the inner wall of the separation device 1 is fixedly connected with a filter screen plate 6; the inner wall of the separation device 1 is rotatably connected with a No. 2 torsion spring 61; the side wall of the No. 2 torsion spring 61 is fixedly connected with a guide plate 62; the interior of the separation device 1 is fixedly connected with a sedimentation tube 63; the inner wall of the sedimentation tube 63 is threadedly connected with a sealing plug 64; the scraped impurities enter the channel below the metal filter roller 15 with part of the crude oil, impact the side wall of the guide plate 62, and then slide to the side wall of the filter screen plate 6 for filtration, and the impurities will be filtered on the side wall of the filter screen plate 6, and as the crude oil is continuously flushed, it enters the internal storage of the sedimentation tube 63, and the sealing plug 64 has the effect of sealing the sedimentation tube 63. At the same time, when a large amount of crude oil is filtered from the channel below the metal filter roller 15, the guide plate 62 will be pressed to rotate with the No. 2 torsion spring 61, and the guide plate 62 is used to cooperate with the inclined surface of the filter screen plate 6 to achieve the effect of diversion, thereby reducing the crude oil entering the interior of the sedimentation tube 63 and being stored with impurities.

[0036] The inner side wall of the separation device 1 is rotatably connected with a sealing rotating plate 7; the side wall of the sealing rotating plate 7 is fixedly connected with a No. 2 elastic member 71; the inner side wall of the separation device 1 is fixedly connected with a limiting block 72, and one end of the No. 2 elastic member 71 is fixedly connected to the side wall of the limiting block 72; in order to reduce the amount of impurities mixed with crude oil entering the sedimentation tube 63 for storage and precipitation, the sealing rotating plate 7 is blocked by the No. 2 elastic member 71 at the flow port of the sedimentation tube 63, and the impurity-mixed crude oil is filtered by the filter plate 6 and accumulated on the side wall of the sealing rotating plate 7. When too much impurity accumulates, the sealing rotating plate 7 will be squeezed to rotate on the inner side wall of the separation device 1, and the No. 2 elastic member 71 will shrink and be stressed, and the limiting block 72 plays a role in fixing the No. 2 elastic member 71, and the flow port at the sedimentation tube 63 will be opened, and the impurities will roll into the internal storage of the sedimentation tube 63. When the impurities roll back, the extrusion force gradually decreases, and the No. 2 elastic member 71 squeezes the sealing rotating plate 7 to reset and continue to block the flow port.

[0037] The inner wall of the separation device 1 is fixedly connected with a fixing frame 8, and is located above the filter screen plate 6; the inner wall of the fixing frame 8 is slidably connected with a sliding rod 81; the side wall of the sliding rod 81 is sleeved with a No. 3 elastic member 82; the bottom end of the sliding rod 81 is fixedly connected with a vibrating ball 83; an auxiliary component is arranged inside the separation device 1, and the auxiliary component is used to drive the vibrating ball 83 to vibrate the filter screen plate 6; when impurities are filtered on the filter screen plate 6, the impurities adhere due to the viscosity of the crude oil, so the auxiliary component is used to rely on the magnetic force to drive the sliding rod 81 to slide up and down continuously on the inner wall of the fixing frame 8, and the vibrating ball 83 at the bottom of the sliding rod 81 slides down and hits the end face of the filter screen plate 6 to generate vibration, thereby reducing the adhesion of impurities and facilitating the impurities to fall off, and the No. 3 elastic member 82 plays the effect of resetting the sliding rod 81.

[0038] The auxiliary component includes a matching impact block 9, a first magnetic piece 91 and a second magnetic piece 92; the matching impact block 9 is fixedly connected to the end of the filter screen plate 6 and is located below the vibration ball 83; the interior of the guide plate 62 is fixedly connected to the first magnetic piece 91; the end of the sliding rod 81 is fixedly connected to the second magnetic piece 92; the first magnetic piece 91 and the second magnetic piece 92 can repel each other when they are close to each other; when the crude oil mixed with impurities falls by gravity, it impacts the guide plate 62, and the impact force drives the guide plate 62 to rotate with the second torsion spring 61. When the first magnetic piece 91 approaches the second magnetic piece 92, the magnetic force repels, and the second magnetic piece 92 presses down the sliding rod 81 to drive the vibration ball 83 to impact the matching impact block 9, further improving the anti-adhesion effect on impurities. At the same time, when the impact force of the crude oil is reduced, the third elastic piece 82 squeezes the second magnetic piece 92 to reset, and repels the first magnetic piece 91 to drive the guide plate 62 to quickly reset.

[0039] Embodiment 2

[0040] like Figure 6 As shown, compared with Example 1, another implementation of the present invention is: a connecting rope 93 is fixedly connected to the inner wall of the separation device 1; one end of the connecting rope 93 is fixedly connected to the side wall of the sealing rotary plate 7; when the crude oil is filtered on the side wall of the filter mesh plate 6, impurities are mixed with a small amount of crude oil and accumulated on the side wall of the sealing rotary plate 7, in order to reduce the large amount of crude oil entering the sedimentation tube 63 for internal precipitation, the connecting rope 93 is used in conjunction with the second elastic member 71 to pull the force of the sealing rotary plate 7, and the shielding effect of the guide plate 62 is combined, so that the crude oil attached to the impurities on the side wall of the sealing rotary plate 7 can be filtered downstream to the maximum extent, and the crude oil entering the sedimentation tube 63 for storage is reduced.

[0041] Working principle: when the oil wells in the oil field are producing crude oil, it is found that a large amount of silt impurities are mixed in the crude oil. When using the separation device 1 for separation, the crude oil delivery pipe is connected to the crude oil inlet pipe 11, and the crude oil mixed with silt impurities enters the separation device 1 for separation. The output end of the servo motor 13 drives the rotating shaft 14 to rotate clockwise, and the metal filter roller 15 rotates with the rotating shaft 14 on the inner wall of the separation device 1. The silt impurities mixed with the crude oil impact on the metal filter roller 15 for filtration. After the metal filter roller 15 rotates for double-layer filtration, a large amount of silt impurities are filtered on the side wall of the metal filter roller 15. The silt impurities scrape and fall off the side wall of the separation device 1 as the separation device 1 rotates, further reducing the adhesion of silt impurities to the side wall of the metal filter roller 15 The phenomenon of clogging can be caused. At the same time, when the holes of the metal filter roller 15 are blocked, water can be poured into the backwash pipe 12 for backwashing, and the output end of the servo motor 13 can be rotated in the opposite direction to reduce the impact of the clogging of the holes of the metal filter roller 15; when the crude oil is relatively thick and mixed with silt impurities and is filtered by the metal filter roller 15, the silt impurities adhere to the side wall of the metal filter roller 15 and block the holes of the metal filter roller 15. The No. 1 heating wire 21 inside the metal rod 2 and the No. 2 heating wire 23 inside the crude oil inlet pipe 11 are heated at the same time. The heat can only reduce the density of the crude oil. The No. 2 heating wire 23 preheats the incoming crude oil to reduce the density of the crude oil, further reducing the large amount of adhesion when impacting the side wall of the metal filter roller 15, and the ... The heat generated by the electric heating wire 21 is conducted to the side wall of the metal filter roller 15 through the metal rod 2 and the heat-conducting metal frame 22, further reducing the adhesion of the crude oil mixed with the silt impurities, and facilitating the filtration of the crude oil; when the silt impurities in the crude oil adhere to the side wall of the metal filter roller 15, the metal filter roller 15 rotates and drives the soft metal strip 3 to swing continuously, and the collision ball 31 swings at the bottom end of the soft metal strip 3 and hits the inner side wall of the metal filter roller 15, so that the silt impurities attached to the side wall of the metal filter roller 15 are loosened, and then the metal scraper 33 is used to scrape the side wall of the metal filter roller 15 to scrape the silt impurities off, further reducing the silt impurities attached to the side wall of the metal filter roller 15 to affect the filtration effect of the crude oil, and when the impurities are tightly adhered The metal scraper 33 will be scraped and rotated with the No. 1 torsion spring 32, thereby enhancing the effect of scraping impurities, and at the same time, cooperate with the heating effect of the No. 1 electric heating wire 21 and the No. 2 electric heating wire 23 to enhance the anti-adhesion effect; when the impurities filtered by the metal filter roller 15 adhere to the side wall of the hole, as the metal filter roller 15 rotates, the multiple groups of soft brushes 41 fixed to the side wall of the brush frame 4 continuously scrape and clean the inner wall of the metal filter roller 15, and the impurities on the side wall of the hole are cleaned and scraped off, and when the metal scraper 33 scrapes the impurities adhered to the side wall of the metal filter roller 15, the metal scraper 33 is stopped by the limit plate 42 when it is scraped off, and cooperates with the No. 1 elastic member 43 to support the limit plate 42, thereby enhancing the scraping effect of the metal scraper 33 on the impurities;When the impurities adhere to the side wall of the metal filter roller 15 tightly, the impurities are scraped by the metal scraper 33, and the metal scraper 33 rotates with the extrusion force to fit the side wall of the metal filter roller 15 more closely. After the impurities are scraped, the No. 1 torsion spring 32 quickly drives the metal scraper 33 to reset. When resetting, the knocking ball 51 on the side wall of the elastic pull rope 5 vibrates and hits the inner wall of the metal scraper 33, causing the metal scraper 33 to vibrate, reducing the impurities adhering to the side wall of the metal scraper 33; the scraped impurities enter the channel below the metal filter roller 15 with part of the crude oil, impact the side wall of the guide plate 62, and then slide to the side wall of the filter screen plate 6 for filtration, and the impurities will be filtered in the filter The side wall of the mesh plate 6 is continuously flushed with crude oil and enters the internal storage of the sedimentation tube 63. The sealing plug 64 seals the sedimentation tube 63. At the same time, when a large amount of crude oil is filtered from the channel below the metal filter roller 15, the guide plate 62 will be pressed to rotate with the No. 2 torsion spring 61. The guide plate 62 is installed with the inclined surface of the filter mesh plate 6 to play a diversion effect, thereby reducing the crude oil from entering the sedimentation tube 63 and being stored with impurities. In order to reduce the crude oil mixed with impurities from entering the sedimentation tube 63 for storage and precipitation, the sealing rotating plate 7 is blocked by the No. 2 elastic member 71 at the flow port of the sedimentation tube 63, and the impurities mixed with the crude oil are filtered by the filter mesh plate 6 and accumulated on the side wall of the sealing rotating plate 7. When too much impurity accumulates, the sealing rotating plate 7 will be squeezed to rotate on the inner wall of the separation device 1, and the second elastic member 71 will shrink and bear the force, and the limit block 72 plays the role of fixing the second elastic member 71, and the flow port at the sedimentation tube 63 will be opened, and the impurities will roll into the internal storage of the sedimentation tube 63. When the impurities roll down, the squeezing force gradually decreases, and the second elastic member 71 squeezes the sealing rotating plate 7 to reset and continue to block the flow port; when the impurities are filtered on the filter screen plate 6, due to the viscosity of the crude oil, the impurities adhere to it, so the auxiliary component relies on the magnetic force to drive the sliding rod 81 to slide up and down continuously on the inner wall of the fixed frame 8, and the vibration ball 83 at the bottom of the sliding rod 81 slides down The impact on the end surface of the filter screen plate 6 generates vibration, reduces the adhesion of impurities, and facilitates the fall of impurities. The third elastic member 82 plays the role of resetting the sliding rod 81; when the crude oil mixed with impurities falls by gravity, it impacts the guide plate 62, and the impact force drives the guide plate 62 to rotate with the second torsion spring 61. When the first magnetic member 91 approaches the second magnetic member 92, the magnetic force repels, and the second magnetic member 92 presses down the sliding rod 81 to drive the vibration ball 83 to hit the matching collision block 9, further improving the anti-adhesion effect of impurities. At the same time, when the impact force of the crude oil is reduced, the third elastic member 82 squeezes the second magnetic member 92 to reset, and repels the first magnetic member 91 to drive the guide plate 62 to quickly reset. ;

[0042] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A backwash three-phase separator, characterized in that: The separation device (1) comprises a separation device (1); a crude oil inlet pipe (11) is fixedly connected to the inner wall of the separation device (1); a backwash pipe (12) is fixedly connected to the end of the separation device (1); a servo motor (13) is fixedly connected inside the separation device (1); a rotating shaft (14) is fixedly connected to the output end of the servo motor (13), and the rotating shaft (14) is rotatably connected to the inner wall of the separation device (1); a metal filter roller (15) is fixedly connected to the side wall of the rotating shaft (14), and the side wall of the metal filter roller (15) is in contact with the inner wall of the separation device (1); A metal rod (2) is fixedly connected to the side wall of the rotating shaft (14); a first heating wire (21) is installed inside the metal rod (2); a plurality of heat-conducting metal frames (22) are fixedly connected to the side wall of the metal rod (2), and the heat-conducting metal frames (22) are fixedly connected to the inner wall of the metal filter roller (15); a second heating wire (23) is installed on the inner wall of the crude oil inlet pipe (11); The side wall of the heat-conducting metal frame (22) is fixedly connected to a soft metal strip (3); the bottom end of the soft metal strip (3) is fixedly connected to a collision ball (31); the inner side wall of the separation device (1) is rotatably connected to a first torsion spring (32); the side wall of the first torsion spring (32) is fixedly connected to a metal scraper (33); The side wall of the metal scraper (33) is fixedly connected to a brush holder (4); the side wall of the brush holder (4) is fixedly connected to a plurality of groups of soft brushes (41), and the soft brushes (41) are in contact with the side wall of the metal filter roller (15); the side wall of the metal scraper (33) is fixedly connected to a limiting plate (42); the side wall of the limiting plate (42) is fixedly connected to a first elastic member (43), and the first elastic member (43) is connected to the side wall of the metal scraper (33); The inner side wall of the separation device (1) is fixedly connected to a filter screen plate (6); the inner side wall of the separation device (1) is rotatably connected to a second torsion spring (61); the side wall of the second torsion spring (61) is fixedly connected to a guide plate (62); the interior of the separation device (1) is fixedly connected to a sedimentation pipe (63); the inner side wall of the sedimentation pipe (63) is threadedly connected to a sealing plug (64); The inner side wall of the separation device (1) is rotatably connected to a sealing rotating plate (7); the side wall of the sealing rotating plate (7) is fixedly connected to a second elastic member (71); the inner side wall of the separation device (1) is fixedly connected to a limiting block (72), and one end of the second elastic member (71) is fixedly connected to the side wall of the limiting block (72); The inner side wall of the separation device (1) is fixedly connected to a fixing frame (8) and is located above the filter screen plate (6); the inner side wall of the fixing frame (8) is slidably connected to a sliding rod (81); the side wall of the sliding rod (81) is sleeved with a third elastic member (82); the bottom end of the sliding rod (81) is fixedly connected to a vibration ball (83); an auxiliary component is arranged inside the separation device (1), and the auxiliary component is used to drive the vibration ball (83) to vibrate the filter screen plate (6) for use; The auxiliary component comprises a matching collision block (9), a first magnetic piece (91) and a second magnetic piece (92); the matching collision block (9) is fixedly connected to the end of the filter screen plate (6) and is located below the vibration ball (83); the first magnetic piece (91) is fixedly connected to the inside of the guide plate (62); the second magnetic piece (92) is fixedly connected to the end of the sliding rod (81); the first magnetic piece (91) and the second magnetic piece (92) can repel each other when they are close to each other.

2. A backwash three-phase separator according to claim 1, characterized in that: A plurality of groups of elastic pull cords (5) are fixedly connected inside the metal scraper (33); a knocking ball (51) is sleeved on the side wall of the elastic pull cord (5) and is located in the middle of the elastic pull cord (5).

3. A backwash three-phase separator according to claim 1, characterized in that: A connecting pull rope (93) is fixedly connected to the inner side wall of the separation device (1); one end of the connecting pull rope (93) is fixedly connected to the side wall of the sealing rotating plate (7).

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