Automatic backwash three-phase separator

Abstract

The utility model discloses an automatic backflushing three -phase separator relates to three -phase separator technical field, include: jar body, the inside nest of jar body has filter screen cylinder, and the upper side middle part of jar body is equipped with inlet pipe, and the lower extreme of inlet pipe extends to the inside of filter screen cylinder, backflushing mechanism, backflushing mechanism includes rotary sleeve and drive assembly of drive rotary sleeve rotation, and rotary sleeve sleeve connects on inlet pipe, and the left and right sides of rotary sleeve all are fixed with inverted L type water spray pipe, and the left and right sides of the bottom of rotary sleeve all are connected with scraper, and the below of rotary sleeve is equipped with cloth liquid cone platform, and the bottom of cloth liquid cone platform is connected with auger. The utility model discloses through utilize rotary sleeve to drive L type water spray pipe and scraper synchronous rotation, realize all -round spray washing and mechanical scraping of filter screen cylinder, and flush even, no dead angle, effectively prevent filter screen cylinder block, and realize forced pollution discharge through auger synchronous rotation, avoid solid in jar secondary suspension or deposit, improve the efficiency of pollution discharge.

Description

Technical Field

[0001] This utility model relates to the field of three-phase separator technology, specifically to an automatic backwashing three-phase separator. Background Technology

[0002] In fields such as oil extraction, natural gas processing, and industrial wastewater treatment, the separation of multiphase mixtures containing gas, oil, water, and solid impurities is often required. Traditional three-phase separators typically employ the principle of gravity settling, achieving initial separation of gas, oil, and water by setting outlets at different heights, and retaining solid particles through filters or sieves.

[0003] However, the continuous accumulation of solid particles on the filter screen leads to a reduction in flow area, an increase in pressure drop, and a decrease in separation efficiency. Frequent shutdowns for manual cleaning are required, affecting continuous operation. Furthermore, the existing backwashing device does not rinse evenly and has dead zones. Most of the separated solid impurities rely on gravity to settle naturally, resulting in low discharge efficiency and a tendency to cause secondary suspension or blockage of the drain outlet. Utility Model Content

[0004] The purpose of this invention is to provide an automatic backwashing three-phase separator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic backwashing three-phase separator, comprising: The tank body has a filter screen inside. The upper right side of the tank body has an air outlet pipe, the lower side wall of the tank body has an oil outlet pipe, the bottom side wall of the tank body has a water outlet pipe, the upper middle side of the tank body has a liquid inlet pipe, and the lower end of the liquid inlet pipe extends into the filter screen. The drain pipe is located at the bottom of the tank, and its inner cavity is connected to the inner cavity of the filter screen cylinder. The backwashing mechanism includes a rotating sleeve and a drive assembly for rotating the rotating sleeve. The rotating sleeve is sleeved on the liquid inlet pipe. A water inlet sleeve is rotatably sleeved on the upper end of the rotating sleeve. Inverted L-shaped water spray pipes are fixed on both the left and right sides of the rotating sleeve. Scrapers are connected to both the left and right sides of the bottom of the rotating sleeve. A liquid distribution cone is provided below the rotating sleeve. An auger is connected to the bottom of the liquid distribution cone and is nested inside the drain pipe.

[0006] Preferably, the bottom of the filter screen cylinder is fixedly connected to the bottom inner wall of the tank, and two L-shaped water spray pipes are symmetrically arranged on the outside of the filter screen cylinder. Multiple nozzles are installed at equal intervals on the vertical pipes of the two L-shaped water spray pipes corresponding to one side wall of the filter screen cylinder. Clean water is sprayed out through the multiple nozzles on the L-shaped water spray pipes to clean the filter screen cylinder, which can effectively cover the filter screen cylinder and eliminate the dead corners of rinsing.

[0007] Preferably, the top wall of the inlet sleeve is rotatably and sealingly fitted with the inlet pipe, the side wall of the inlet sleeve is connected to the inlet pipe, the lower inner wall of the inlet sleeve is rotatably and sealingly connected to the upper outer wall of the rotating sleeve, the gap between the rotating sleeve and the inlet pipe is in communication with the inner cavity of the inlet sleeve and the inner cavity of the L-shaped spray pipe, the bottom end of the rotating sleeve extends rotatably into the filter screen cylinder, and the lower inner wall of the rotating sleeve is rotatably and sealingly connected to the outer wall of the inlet pipe.

[0008] Preferably, a first connecting rod is fixed on both the left and right sides of the bottom of the rotating sleeve. The end of the first connecting rod away from the rotating sleeve is connected to a scraper. The scraper abuts against the inner wall of the filter cylinder, and the inner wall of the filter cylinder can be cleaned by the scraper.

[0009] Preferably, a second connecting rod is fixed on both the left and right sides of the bottom of the liquid distribution cone. The end of the second connecting rod away from the liquid distribution cone is connected to the scraper. A transmission rod is fixed in the middle of the lower side of the liquid distribution cone. The lower end of the transmission rod is connected to the auger. By combining the liquid distribution cone and the auger, the scraped solid impurities are quickly concentrated and forcibly discharged, avoiding secondary suspension or deposition of solids in the tank, improving the sewage discharge efficiency and discharge concentration, and reducing the burden of subsequent sludge treatment.

[0010] Preferably, the drive assembly includes a drive motor and a transmission gear fixedly sleeved on the rotating sleeve. The output end of the drive motor is connected to a drive gear, which meshes with the transmission gear. The drive assembly is located at the top of the tank and is isolated from the medium to avoid corrosion of the drive motor or meet explosion-proof requirements, thereby reducing the failure rate.

[0011] Preferably, an exhaust hood is provided on the inner wall of the top of the tank corresponding to the position of the exhaust pipe, and a mist eliminator is installed inside the exhaust hood to effectively remove liquid droplets entrained in the gas and improve the gas purity.

[0012] Preferably, an air outlet valve is installed on the air outlet pipe, an oil outlet valve is installed on the oil outlet pipe, a water outlet valve is installed on the water outlet pipe, a liquid inlet valve is installed on the liquid inlet pipe, and a sewage outlet valve is installed on the sewage outlet pipe.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. By using a rotating sleeve to drive the L-shaped water spray pipe and scraper to rotate synchronously, the filter screen cylinder can be sprayed and mechanically scraped in all directions. The rinsing is uniform and without dead corners, which effectively prevents the filter screen cylinder from clogging, extends the continuous operation time of the equipment, reduces the frequency of manual intervention, and achieves forced sewage discharge through synchronous rotation of the auger, avoiding secondary suspension or deposition of solids in the tank and improving sewage discharge efficiency. 2. By integrating the functions of liquid inlet, backwashing, scraping, and sewage discharge into the same tank, and adopting a structure in which a rotating sleeve is coaxially fitted outside the liquid inlet pipe, a dual-channel layout of central liquid inlet and annular flushing is achieved, saving space, reducing the configuration of external pipelines and valves, and making the equipment smaller and easier to install. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is another schematic diagram of the present invention; Figure 3 This is a three-dimensional sectional view of the present invention; Figure 4 This is a schematic diagram of the backwashing mechanism of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Tank body; 2. Filter screen cylinder; 3. Air outlet pipe; 4. Oil outlet pipe; 5. Water outlet pipe; 6. Liquid inlet pipe; 7. Sewage discharge pipe; 8. Rotary sleeve; 9. Water inlet sleeve; 10. L-shaped water spray pipe; 11. Nozzle; 12. Scraper; 13. Liquid distribution cone; 14. Screwdriver; 15. Water inlet pipe; 16. First connecting rod; 17. Second connecting rod; 18. Transmission rod; 19. Drive motor; 20. Transmission gear; 21. Drive gear; 22. Air outlet hood; 23. Mist eliminator; 24. Air outlet valve; 25. Oil outlet valve; 26. Water outlet valve; 27. Liquid inlet valve; 28. Sewage discharge valve. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model provides, for example Figures 1 to 4 An automatic backwashing three-phase separator shown includes: Tank 1, with a filter screen 2 nested inside the tank 1, an air outlet pipe 3 on the upper right side of the tank 1, an oil outlet pipe 4 on the lower side wall of the tank 1, a water outlet pipe 5 on the bottom side wall of the tank 1, and a liquid inlet pipe 6 on the upper middle side of the tank 1, with the lower end of the liquid inlet pipe 6 extending into the filter screen 2. Sewage pipe 7 is located at the bottom of tank 1, and the inner cavity of sewage pipe 7 is connected to the inner cavity of filter screen cylinder 2. The backwashing mechanism includes a rotating sleeve 8 and a drive assembly for rotating the rotating sleeve 8. The rotating sleeve 8 is sleeved on the liquid inlet pipe 6. The upper end of the rotating sleeve 8 is rotatably sleeved with a water inlet sleeve 9. Inverted L-shaped water spray pipes 10 are fixed on both the left and right sides of the rotating sleeve 8. Scrapers 12 are connected to both the left and right sides of the bottom of the rotating sleeve 8. A liquid distribution cone 13 is provided below the rotating sleeve 8. An auger 14 is connected to the bottom of the liquid distribution cone 13. The auger 14 is nested inside the drain pipe 7.

[0019] The bottom of the filter cylinder 2 is fixedly connected to the bottom inner wall of the tank 1. Two L-shaped water spray pipes 10 are symmetrically arranged on the outside of the filter cylinder 2. Multiple nozzles 11 are installed at equal intervals on the vertical pipes of the two L-shaped water spray pipes 10 corresponding to one side wall of the filter cylinder 2. Clean water is sprayed out through the multiple nozzles 11 on the L-shaped water spray pipes 10 to clean the filter cylinder 2, which can effectively cover the filter cylinder 2 and eliminate the dead corners of rinsing.

[0020] The top wall of the inlet sleeve 9 is rotatably and sealingly connected to the inlet pipe 6. The side wall of the inlet sleeve 9 is connected to the inlet pipe 15. The lower inner wall of the inlet sleeve 9 is rotatably and sealingly connected to the upper outer wall of the rotating sleeve 8. The gap between the rotating sleeve 8 and the inlet pipe 6 is connected to the inner cavity of the inlet sleeve 9 and the inner cavity of the L-shaped spray pipe 10. The bottom end of the rotating sleeve 8 extends rotatably into the filter screen cylinder 2. The lower inner wall of the rotating sleeve 8 is rotatably and sealingly connected to the outer wall of the inlet pipe 6.

[0021] The bottom left and right sides of the rotating sleeve 8 are fixed with first connecting rods 16. The end of the first connecting rod 16 away from the rotating sleeve 8 is connected to the scraper 12. The scraper 12 abuts against the inner wall of the filter cylinder 2. The inner wall of the filter cylinder 2 can be cleaned by the scraper 12.

[0022] The bottom left and right sides of the liquid distribution cone 13 are fixed with second connecting rods 17. The end of the second connecting rod 17 away from the liquid distribution cone 13 is connected to the scraper 12. The lower middle part of the liquid distribution cone 13 is fixed with a transmission rod 18. The lower end of the transmission rod 18 is connected to the auger 14. By combining the liquid distribution cone 13 and the auger 14, the scraped solid impurities are quickly concentrated and forcibly discharged, avoiding secondary suspension or deposition of solids in the tank, improving sewage discharge efficiency and discharge concentration, and reducing the burden of subsequent sludge treatment.

[0023] The drive assembly includes a drive motor 19 and a transmission gear 20 fixedly sleeved on the rotating sleeve 8. The output end of the drive motor 19 is connected to a drive gear 21, which meshes with the transmission gear 20. The drive assembly is located at the top of the tank 1 and is isolated from the medium to avoid corrosion of the drive motor 19 or to meet explosion-proof requirements, thereby reducing the failure rate.

[0024] The top inner wall of the tank 1 is provided with an exhaust hood 22 corresponding to the position of the exhaust pipe 3. A mist eliminator 23 is installed inside the exhaust hood 22 to effectively remove liquid droplets entrained in the gas and improve the gas purity.

[0025] An air outlet valve 24 is installed on the air outlet pipe 3, an oil outlet valve 25 is installed on the oil outlet pipe 4, a water outlet valve 26 is installed on the water outlet pipe 5, a liquid inlet valve 27 is installed on the liquid inlet pipe 6, and a sewage outlet valve 28 is installed on the sewage outlet pipe 7.

[0026] In this invention, during backwashing, the inlet valve 27, oil outlet valve 25, and water outlet valve 26 are closed, the drain valve 28 is opened, and the inlet pipe 15 is connected to an external water source. Clean water enters the inlet sleeve 9 through the inlet pipe 15, then enters the L-shaped spray pipe 10 through the gap between the rotating sleeve 8 and the inlet pipe 6, and finally sprays out from the nozzle 11 on the L-shaped spray pipe 10 to rinse the filter screen cylinder 2. At the same time, the drive motor 19 drives the drive gear 21 to rotate. The rotation of the drive gear 21 drives the rotating sleeve 8 to rotate through the meshing with the transmission gear 20. The rotation of the rotating sleeve 8 drives the two L-shaped spray pipes 10 to rotate, so that the two L-shaped spray pipes 10 surround the filter screen cylinder 2. The rotating sleeve 8 rotates around the filter cylinder 2, allowing the nozzles 11 on the two L-shaped water spray pipes 10 to effectively rinse the filter cylinder 2 thoroughly. At the same time, the rotating sleeve 8 rotates, driving the scraper 12 to rotate via the first connecting rod 16. The scraper 12 cleans the inner wall of the filter cylinder 2. Combined with the water spraying from the nozzles 11, this achieves all-round spraying and mechanical scraping of the filter cylinder 2, ensuring uniform rinsing without dead corners. This effectively prevents the filter cylinder 2 from clogging, extends the continuous operating time of the equipment, and reduces the frequency of manual intervention. Simultaneously, the rotation of the scraper 12 drives the liquid distribution cone 13 to rotate, which in turn drives the auger 14 to rotate synchronously, achieving forced sewage discharge and preventing solids from being resuspended or deposited in the tank, thus improving sewage discharge efficiency.

[0027] This utility model integrates the functions of liquid inlet, backwashing, scraping, and sewage discharge into the same tank 1. It adopts a structure in which a rotating sleeve 8 is coaxially sleeved on the outside of the liquid inlet pipe 6, realizing a dual-channel layout of central liquid inlet and annular flushing. This saves space, reduces the configuration of external pipelines and valves, and makes the equipment smaller and easier to install.

[0028] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic backwashing three-phase separator, characterized in that, include: Tank (1), with a filter cylinder (2) nested inside the tank (1), an air outlet pipe (3) on the upper right side of the tank (1), an oil outlet pipe (4) on the lower side wall of the tank (1), a water outlet pipe (5) at the bottom of the side wall of the tank (1), and an inlet pipe (6) on the upper middle side of the tank (1), with the lower end of the inlet pipe (6) extending into the filter cylinder (2); The drain pipe (7) is located at the bottom of the tank (1), and the inner cavity of the drain pipe (7) is connected to the inner cavity of the filter screen cylinder (2). The backwashing mechanism includes a rotating sleeve (8) and a drive assembly for rotating the rotating sleeve (8). The rotating sleeve (8) is sleeved on the liquid inlet pipe (6). The upper end of the rotating sleeve (8) is rotatably sleeved with a water inlet sleeve (9). Inverted L-shaped water spray pipes (10) are fixed on both the left and right sides of the rotating sleeve (8). Scrapers (12) are connected to both the left and right sides of the bottom of the rotating sleeve (8). A liquid distribution cone (13) is provided below the rotating sleeve (8). An auger (14) is connected to the bottom of the liquid distribution cone (13). The auger (14) is nested inside the drain pipe (7).

2. The automatic backwashing three-phase separator according to claim 1, characterized in that: The bottom of the filter cylinder (2) is fixedly connected to the bottom inner wall of the tank (1). Two L-shaped water spray pipes (10) are symmetrically arranged on the outside of the filter cylinder (2). The vertical pipes of the two L-shaped water spray pipes (10) are equipped with multiple nozzles (11) at equal intervals on one side wall of the filter cylinder (2).

3. An automatic backwashing three-phase separator according to claim 1, characterized in that: The top wall of the water inlet sleeve (9) is rotatably fitted with the liquid inlet pipe (6), and the side wall of the water inlet sleeve (9) is connected to the water inlet pipe (15). The lower inner wall of the water inlet sleeve (9) is rotatably sealed to the upper outer wall of the rotating sleeve (8). The gap between the rotating sleeve (8) and the liquid inlet pipe (6) is connected to the inner cavity of the water inlet sleeve (9) and the inner cavity of the L-shaped spray pipe (10). The bottom end of the rotating sleeve (8) extends rotatably into the filter screen cylinder (2), and the inner wall of the bottom end of the rotating sleeve (8) is rotatably sealed to the outer wall of the liquid inlet pipe (6).

4. An automatic backwashing three-phase separator according to claim 1, characterized in that: The bottom left and right sides of the rotating sleeve (8) are fixed with first connecting rods (16). The end of the first connecting rod (16) away from the rotating sleeve (8) is connected to the scraper (12). The scraper (12) abuts against the inner wall of the filter cylinder (2).

5. An automatic backwashing three-phase separator according to claim 1, characterized in that: The bottom left and right sides of the liquid distribution cone (13) are fixed with second connecting rods (17). The end of the second connecting rod (17) away from the liquid distribution cone (13) is connected to the scraper (12). The lower middle part of the liquid distribution cone (13) is fixed with a transmission rod (18). The lower end of the transmission rod (18) is connected to the auger (14).

6. An automatic backwashing three-phase separator according to claim 1, characterized in that: The drive assembly includes a drive motor (19) and a transmission gear (20) fixedly sleeved on the rotating sleeve (8). The output end of the drive motor (19) is connected to a drive gear (21), which meshes with the transmission gear (20).

7. An automatic backwashing three-phase separator according to claim 1, characterized in that: An air hood (22) is provided on the inner wall of the top of the tank (1) at the position corresponding to the air outlet pipe (3), and a mist eliminator (23) is installed inside the air hood (22).

8. An automatic backwashing three-phase separator according to claim 1, characterized in that: An air outlet valve (24) is installed on the air outlet pipe (3), an oil outlet valve (25) is installed on the oil outlet pipe (4), a water outlet valve (26) is installed on the water outlet pipe (5), a liquid inlet valve (27) is installed on the liquid inlet pipe (6), and a sewage outlet valve (28) is installed on the sewage outlet pipe (7).

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