Efficient sewage filtering device for oilfield exploitation

Abstract

The utility model relates to the technical field of oilfield exploitation sewage treatment, and discloses an efficient sewage filtering device for oilfield exploitation, which comprises a filtering barrel, supporting legs fixedly connected to corners of the lower surface of the filtering barrel, a water inlet and a controller, the water inlet and the controller are fixedly connected to the filtering barrel, and a water outlet is further fixedly connected to the lower surface of the filtering barrel. A transmission assembly is mounted in the filtering barrel, and a driving device is further mounted above the filtering barrel. The crushing teeth can be driven to rotate through the transmission assembly, so that large particles in sewage are crushed, the crushed particles can be filtered again through the first filter screen and the second filter screen, the large particles in the sewage are reduced, the oil suction nozzle can be driven to move up and down through the driving device, and the crushing efficiency is improved. After the oil suction nozzle is in contact with the surface of sewage, oil stains on the upper layer can be sucked, so that the content of the oil stains in the sewage is reduced, and subsequent treatment of the sewage is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield production sewage treatment, in particular to an efficient sewage filtering device for oilfield production. Background Technique

[0002] Petroleum refers to a mixture of gaseous, liquid and solid hydrocarbons and is the raw material for many chemical industrial products such as solvents, fertilizers, pesticides and plastics. Oil extraction refers to the act of excavating and extracting oil in places where oil is stored. During the process of oil extraction, the driving mode of oil and gas flowing from the reservoir into the bottom of the well and then rising from the bottom of the well to the wellhead. The filtration of oilfield produced sewage is the final process of reinjection sewage treatment, and sewage filtering equipment is used in this process.

[0003] However, in the process of using the existing sewage filtering device, on the one hand, it is difficult to remove the oil stains floating on the surface of the sewage, which is inconvenient for subsequent treatment. At the same time, it is difficult to crush and filter the larger particles in the sewage, and the presence of larger particles will also affect the final sewage filtering quality. Therefore, the technical personnel in this field provide an efficient sewage filtering device for oilfield production to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to provide an efficient sewage filtering device for oilfield production to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An efficient sewage filtration device for oilfield exploitation, comprising a filtration barrel, support legs fixedly connected to the corners of the lower surface of the filtration barrel, and a water inlet and a controller fixedly connected to the filtration barrel. A water outlet is also fixedly connected to the lower surface of the filtration barrel, and a transmission assembly is installed inside the filtration barrel. The transmission assembly includes a motor, a first rotating shaft, a first bevel gear, a first filter screen, a second filter screen, a second bevel gear, a limiting ring, crushing teeth, and a second rotating shaft. The motor is fixedly connected to the center of the lower surface of the filtration barrel, and the driving end of the motor penetrates the bottom of the filtration barrel and is connected to a first rotating shaft. The first filter screen and the second filter screen are fixedly sleeved on the outside of the first rotating shaft in sequence from bottom to top, and a first bevel gear is fixedly connected to the top of the first rotating shaft. A second bevel gear is meshed with both sides of the first bevel gear, and a second rotating shaft is fixedly connected to both of the second bevel gears. One end of the second rotating shaft is movably connected to the inner wall of the filtration barrel through a bearing, and a limiting ring is movably sleeved on the outside of the second rotating shaft. Crushing teeth are fixedly connected to the upper and lower surfaces of the limiting ring. A driving device is also installed above the filtration barrel. The driving device includes a servo motor, a mounting frame, a winding rod, a connecting rope, an oil collecting box body, an oil collecting pipe, and an oil collecting cover. The mounting frame is fixedly connected to the filtration barrel, and a servo motor is fixedly connected to the outside of the mounting frame. The driving end of the servo motor penetrates the mounting frame and is connected to a winding rod. One end of the winding rod is movably connected to the mounting frame through a bearing, and two groups of connecting ropes are wound around the outside of the winding rod. The bottom ends of both groups of connecting ropes are connected to an oil collecting box body. An oil collecting pipe is fixedly connected to the lower surface of the oil collecting box body in a ring shape. The bottom end of the oil collecting pipe is fixedly connected to an oil collecting cover. Oil suction nozzles are evenly fixedly connected to the lower surface of the oil collecting cover.

[0007] As a further scheme of the present utility model: a cavity is opened inside the oil collecting box body, an electric push rod is fixedly connected inside the cavity, and a piston is fixedly connected to the bottom end of the electric push rod.

[0008] As a further scheme of the present utility model: the fixed end of the electric push rod is fixedly connected inside the cavity, the telescopic end of the electric push rod is fixed to the piston, and the piston is attached to the inner wall of the cavity.

[0009] As a further scheme of the present utility model: the top end of the oil collecting pipe is communicated with the cavity, the oil collecting cover is of a disc-shaped structure, and the diameter of the oil collecting cover is smaller than the diameter of the filtration barrel.

[0010] As a further scheme of the present utility model: the aperture of the first filter screen is smaller than the aperture of the second filter screen, both the first filter screen and the second filter screen are of a disc-shaped structure, and the diameters of both the first filter screen and the second filter screen are smaller than the diameter of the filtration barrel.

[0011] As a further solution of the utility model: A locking bolt is also embedded and installed on the front surface of the limiting ring, and the second bevel gear and the first bevel gear are vertically distributed.

[0012] As a further solution of the utility model: The number of the crushing teeth is 12, and the crushing teeth are made of stainless steel.

[0013] As a further solution of the utility model: Both the crushing teeth and the limiting ring are located above the second filter screen, and one end of the crushing teeth is in a sharp angle shape.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model can drive the crushing teeth to rotate through the transmission component, so as to crush the larger particles in the sewage, and then the crushed particles can be filtered again through the first filter screen and the second filter screen, thereby reducing the generation of larger particles in the sewage;

[0016] 2. The driving device can drive the oil suction nozzle to move up and down. When the oil suction nozzle contacts the sewage surface, the oil on the upper layer can be sucked in, thereby reducing the oil content in the sewage and being beneficial to the subsequent treatment of the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an efficient sewage filtering device for oil field exploitation;

[0018] Figure 2 It is a schematic internal structure diagram of an efficient sewage filtering device for oil field exploitation;

[0019] Figure 3 It is a schematic internal structure diagram of the oil collecting box body in an efficient sewage filtering device for oil field exploitation;

[0020] Figure 4 It is a schematic structural diagram of the oil suction nozzle in an efficient sewage filtering device for oil field exploitation;

[0021] Figure 5 It is a schematic structural diagram of the transmission component in an efficient sewage filtering device for oil field exploitation;

[0022] Figure 6 It is a schematic structural diagram of the first filter screen and the second filter screen in an efficient sewage filtering device for oil field exploitation.

[0023] In the figure: 1. Driving device; 2. Filter barrel; 3. Water inlet; 4. Controller; 5. Support leg; 6. Servo motor; 7. Mounting bracket; 8. Winding rod; 9. Connecting rope; 10. Oil collecting box body; 11. Oil collecting pipe; 12. Oil collecting hood; 13. Transmission component; 14. Water outlet; 15. Cavity; 16. Electric push rod; 17. Piston; 18. Oil suction nozzle; 19. Electric motor; 20. First rotating shaft; 21. First bevel gear; 22. First filter screen; 23. Second filter screen; 24. Second bevel gear; 25. Limit ring; 26. Crushing teeth; 27. Second rotating shaft. Detailed implementation mode

[0024] Please refer to Figures 1 to 6 , in the embodiment of the present utility model, an efficient sewage filtering device for oil field exploitation includes a filter barrel 2, support legs 5 fixedly connected to the corners of the lower surface of the filter barrel 2, a water inlet 3 and a controller 4 fixedly connected to the filter barrel 2. The model of the controller 4 is DKC - Y110. A water outlet 14 is also fixedly connected to the lower surface of the filter barrel 2, and a transmission component 13 is installed inside the filter barrel 2. The transmission component 13 includes an electric motor 19, a first rotating shaft 20, a first bevel gear 21, a first filter screen 22, a second filter screen 23, a second bevel gear 24, a limit ring 25, crushing teeth 26 and a second rotating shaft 27. The electric motor 19 is fixedly connected to the center of the lower surface of the filter barrel 2, and the driving end of the electric motor 19 penetrates the bottom of the filter barrel 2 and is connected to the first rotating shaft 20. The model of the electric motor 19 is YE2. The first filter screen 22 and the second filter screen 23 are fixedly sleeved on the outside of the first rotating shaft 20 from bottom to top in sequence, and the top end of the first rotating shaft 20 is fixedly connected to the first bevel gear 21. The first bevel gear 21 is meshed with the second bevel gear 24 on both sides. The second rotating shaft 27 is fixedly connected to both of the second bevel gears 24. One end of the second rotating shaft 27 is movably connected to the inner wall of the filter barrel 2 through a bearing, and the outside of the second rotating shaft 27 is movably sleeved with a limit ring 25. Crushing teeth 26 are fixedly connected to the upper and lower surfaces of the limit ring 25. The aperture of the first filter screen 22 is smaller than that of the second filter screen 23, and both the first filter screen 22 and the second filter screen 23 are of disc-shaped structure. The diameters of the first filter screen 22 and the second filter screen 23 are both smaller than the diameter of the filter barrel 2. A locking bolt is also embedded and installed on the front surface of the limit ring 25. The second bevel gear 24 and the first bevel gear 21 are vertically distributed. The number of the crushing teeth 26 is 12, and the crushing teeth 26 are made of stainless steel. Both the crushing teeth 26 and the limit ring 25 are located above the second filter screen 23. One end of the crushing teeth 26 is in a sharp angle shape. Through the transmission component 13, the crushing teeth 26 can be driven to rotate, so as to crush larger particulate matters in the sewage, and then the crushed particulate matters can be filtered again through the first filter screen 22 and the second filter screen 23, thereby reducing the generation of larger particulate matters in the sewage.

[0025] InFigure 1 , Figure 2 , Figure 3 and Figure 4 Among them: A driving device 1 is also installed above the filter barrel 2. The driving device 1 includes a servo motor 6, a mounting frame 7, a winding rod 8, a connecting rope 9, an oil collecting box body 10, an oil collecting pipe 11 and an oil collecting cover 12. The mounting frame 7 is fixedly connected to the filter barrel 2, and the servo motor 6 is fixedly connected to the outside of the mounting frame 7. The driving end of the servo motor 6 penetrates through the mounting frame 7 and is connected to the winding rod 8. The model of the servo motor 6 is ACSM110-G04030LZ. One end of the winding rod 8 is movably connected to the mounting frame 7 through a bearing, and two groups of connecting ropes 9 are wound around the outside of the winding rod 8. The bottom ends of the two groups of connecting ropes 9 are both connected to the oil collecting box body 10. The lower surface of the oil collecting box body 10 is annularly fixedly connected with the oil collecting pipe 11. The bottom end of the oil collecting pipe 11 is fixedly connected with the oil collecting cover 12. The lower surface of the oil collecting cover 12 is evenly fixedly connected with oil suction nozzles 18. A cavity 15 is opened inside the oil collecting box body 10. An electric push rod 16 is fixedly connected inside the cavity 15. The bottom end of the electric push rod 16 is fixedly connected with a piston 17. The fixed end of the electric push rod 16 is fixedly connected inside the cavity 15, and the telescopic end of the electric push rod 16 is fixed to the piston 17. The piston 17 is in contact with the inner wall of the cavity 15. The top end of the oil collecting pipe 11 communicates with the cavity 15. The oil collecting cover 12 is of a disc-shaped structure, and the diameter of the oil collecting cover 12 is smaller than the diameter of the filter barrel 2. By driving the device 1, the oil suction nozzles 18 can be driven to move up and down. When the oil suction nozzles 18 contact the surface of the sewage, the oil on the upper layer can be sucked in, thereby reducing the oil content in the sewage and being beneficial to the subsequent treatment of the sewage.

[0026] The working principle of the present utility model is as follows: First, the user pumps sewage into the filter barrel 2 through the water inlet 3 by an external water pump. Then, the user controls the servo motor 6 to start working through the controller 4. After the servo motor 6 rotates forward, it can drive the winding rod 8 to rotate forward. At this time, the two groups of connecting ropes 9 can be gradually paid out, thereby driving the oil collecting box body 10 to move downward. After the oil collecting box body 10 moves downward, it can drive the oil collecting cover 12 and the oil suction nozzle 18 to move downward. When the oil suction nozzle 18 moves downward to the sewage surface, the controller 4 is used to control the electric push rod 16 to shorten. At this time, the piston 17 can be driven to rise. At this time, an upward suction force is generated inside the cavity 15. Finally, the oil stain is sucked into the cavity 15 through the oil suction nozzle 18, the oil collecting cover 12 and the oil collecting pipe 11. Then, the controller 4 is used to control the servo motor 6 to rotate reversely, which can drive the oil collecting box body 10 to move upward, facilitating the dumping of the extracted oil stain. Therefore, the driving device 1 can drive the oil suction nozzle 18 to move up and down. When the oil suction nozzle 18 contacts the sewage surface, the upper-layer oil stain can be sucked in, thereby reducing the oil stain content in the sewage, which is beneficial to the subsequent treatment of the sewage. Then, the user controls the motor 19 to start working through the controller 4. After the motor 19 is powered on, it drives the first rotating shaft 20 and the first bevel gear 21 to rotate. Since the first bevel gear 21 and the second bevel gear 24 are meshed with each other, the second rotating shaft 27 and the crushing teeth 26 can be driven to rotate at this time. After the crushing teeth 26 rotate, the larger particulate matters in the sewage can be crushed. When the user loosens the locking bolt on the front surface of the limiting ring 25, the crushing teeth 26 can be disassembled at this time. After the crushed particulate matters pass through the second filter screen 23 and the first filter screen 22, they are filtered, and finally discharged through the water outlet 14 below. Therefore, the transmission assembly 13 can drive the crushing teeth 26 to rotate, thereby crushing the larger particulate matters in the sewage. Then, the crushed particulate matters can be filtered again through the first filter screen 22 and the second filter screen 23, thereby reducing the generation of larger particulate matters in the sewage.

[0027] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A high-efficiency sewage filtering device for oil field development, comprising a filter barrel (2), a support leg (5) fixedly connected to the corner of the lower surface of the filter barrel (2), and a water inlet (3) and a controller (4) fixedly connected to the filter barrel (2), characterized in that: The lower surface of the filter barrel (2) is also fixedly connected to a water outlet (14), and a transmission assembly (13) is installed inside the filter barrel (2), the transmission assembly (13) comprising a motor (19), a first rotating shaft (20), a first bevel gear (21), a first filter screen (22), a second filter screen (23), a second bevel gear (24), a stop ring (25), a crushing tooth (26) and a second rotating shaft (27), the motor (19) is fixedly connected to the center of the lower surface of the filter barrel (2), and the driving end of the motor (19) penetrates The bottom of the filter barrel (2) is connected to a first rotating shaft (20), the outside of the first rotating shaft (20) is fixedly sleeved with a first filter screen (22) and a second filter screen (23) in sequence from bottom to top, and the top of the first rotating shaft (20) is fixedly connected to a first bevel gear (21), both sides of the first bevel gear (21) are meshed with second bevel gears (24), and the two second bevel gears (24) are fixedly connected to a second rotating shaft (27), and one end of the second rotating shaft (27) is movably connected to the inner wall of the filter barrel (2) through a bearing. The second rotating shaft (27) is movably sleeved with a limit ring (25) on the outside, and the upper and lower surfaces of the limit ring (25) are both fixedly connected with crushing teeth (26). A driving device (1) is also installed above the filter barrel (2). The driving device (1) comprises a servo motor (6), a mounting frame (7), a winding rod (8), a connecting rope (9), an oil collecting box (10), an oil collecting pipe (11) and an oil collecting cover (12). The mounting frame (7) is fixedly connected to the filter barrel (2), and the outer side of the mounting frame (7) is fixedly connected to the servo motor (6). The driving end of the servo motor (6) passes through the mounting frame (7) and is connected to a winding rod (8). One end of the winding rod (8) is movably connected to the mounting frame (7) through a bearing, and two groups of connecting ropes (9) are wound around the outside of the winding rod (8). The bottom ends of the two groups of connecting ropes (9) are connected to an oil collecting box (10). The lower surface of the oil collecting box (10) is fixedly connected to an oil collecting pipe (11) in an annular shape. The bottom end of the oil collecting pipe (11) is fixedly connected to an oil collecting cover (12). The lower surface of the oil collecting cover (12) is evenly fixedly connected to an oil suction nozzle (18).

2. The high-efficiency sewage filtering device for oil field development according to claim 1 is characterized in that: The oil collecting box (10) has a cavity (15) formed inside, an electric push rod (16) is fixedly connected inside the cavity (15), and a piston (17) is fixedly connected to the bottom end of the electric push rod (16).

3. The high-efficiency sewage filtering device for oil field development according to claim 2 is characterized in that: The fixed end of the electric push rod (16) is fixedly connected to the inside of the cavity (15), and the telescopic end of the electric push rod (16) is fixed to the piston (17), and the piston (17) is in contact with the inner wall of the cavity (15).

4. The high-efficiency sewage filtering device for oil field development according to claim 2 is characterized in that: The top end of the oil collecting pipe (11) is in communication with the cavity (15); the oil collecting cover (12) is a disc-shaped structure; and the diameter of the oil collecting cover (12) is smaller than the diameter of the filter barrel (2).

5. The high-efficiency sewage filtering device for oil field development according to claim 1 is characterized in that: The aperture of the first filter screen (22) is smaller than the aperture of the second filter screen (23), and both the first filter screen (22) and the second filter screen (23) are disc-shaped structures, and the diameters of the first filter screen (22) and the second filter screen (23) are smaller than the diameter of the filter barrel (2).

6. The high-efficiency sewage filtering device for oil field development according to claim 1 is characterized in that: A locking bolt is also embedded and installed on the front surface of the limiting ring (25), and the second bevel gear (24) and the first bevel gear (21) are vertically distributed.

7. The high-efficiency sewage filtering device for oil field development according to claim 1 is characterized in that: The number of the crushing teeth (26) is 12, and the crushing teeth (26) are components made of stainless steel.

8. The high-efficiency sewage filtering device for oil field development according to claim 1 is characterized in that: The crushing teeth (26) and the limiting ring (25) are both located above the second filter screen (23), and one end of the crushing teeth (26) is in a pointed shape.

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