An oil-water separation device for oilfield water treatment

Abstract

This utility model belongs to the field of petroleum processing technology, specifically disclosing an oil-water separation device for oilfield water treatment. It includes a water tank and a three-way pipe. The three-way pipe is installed in the upper left corner inside the water tank, and a guide pipe is installed on the right side of the three-way pipe. A vertical frame is installed behind the center of the top of the water tank, and a servo motor is installed at the top of the outside of the vertical frame. A screw is movably connected between the upper and lower parts inside the vertical frame. This oil-water separation device for oilfield water treatment uses a vertical frame installed behind the center of the top of the water tank. Starting the servo motor rotates the screw, causing a vertical settling support to descend along the inner wall of the vertical frame. Settling stops when the lower surface of the steel strip contacts the oil on the liquid surface. Then, the drive motor rotates the magnetic wheel, and with the assistance of the limit wheel, the steel strip rotates. When the oil is transported to the top, it is scraped by a scraper and guided into a collection tank, thus cleaning the oil from the surface of the mixture and solving the problem of fixed oil suction position.

Description

Technical Field

[0001] This utility model relates to the field of petroleum processing technology, specifically to an oil-water separation device for oilfield water treatment. Background Technology

[0002] Oil fields are formed under special conditions, and these resources are often buried deep underground, on the seabed, or in mountains. In order to extract oil fields and obtain natural gas and petroleum, people need to set up oil wells after exploration to extract materials. The crude oil extracted contains a large number of impurities and water. To refine the petroleum, the first step is to separate the oil and water.

[0003] Most water-oil separators have two sets of rollers mounted above the water tank. The rollers drive a steel belt to rotate, which sticks the floating oil to the surface of the steel belt and then scrapes it off. The height of this device needs to be specially installed according to the liquid level. If the speed of the introduced material changes, the liquid level will rise or fall, and the original oil suction position will no longer be applicable.

[0004] Now, a novel oil-water separation device for oilfield water treatment is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an oil-water separation device for oilfield water treatment, so as to solve the problem of fixed oil suction position mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oil-water separation device for oilfield water treatment, comprising a water tank and a three-way pipe. A three-way pipe is installed in the upper left corner inside the water tank, and a guide pipe is installed on the right side of the three-way pipe. A vertical frame is installed behind the center of the top of the water tank, and a servo motor is installed at the top of the outer side of the vertical frame. A screw is movably connected between the upper and lower parts inside the vertical frame. A threaded block is threadedly connected to the outer side of the screw, and a bracket is welded to the front end of the threaded block. A drive motor is installed above the inside of the bracket. A magnetic wheel is movably connected above the front end of the bracket, and a limiting wheel is movably connected below the front end of the bracket. A steel belt is sleeved between the magnetic wheel and the limiting wheel. A scraper is installed on the right side of the vertical frame, and a collection box is installed on the right side of the top of the water tank.

[0007] As a further technical solution of this utility model, the output end of the drive motor is fixedly connected to the magnet wheel, and the bottom of the output end of the servo motor is fixedly connected to the screw.

[0008] As a further technical solution of this utility model, the lower right corner of the scraper is embedded in the collection box, and the threaded block moves up and down synchronously with the bracket.

[0009] As a further technical solution of this utility model, the magnetic wheel and the limiting wheel are on the same vertical plane, and the steel belt moves clockwise between the magnetic wheel and the limiting wheel.

[0010] As a further technical solution of this utility model, a shell is installed on the right side of the water tank, and a slot is fixed longitudinally on the left side inside the shell. A filter box is movably connected in the slot, and a slider is welded to the center of the right side of the filter box. A cover plate is fixed on the top of the shell, and a cylinder is installed on the right side of the bottom of the cover plate. A baffle is welded longitudinally on the right side inside the water tank. A suction pipe is installed between the water tank and the shell, and a liquid pump is installed on the suction pipe.

[0011] As a further technical solution of this utility model, the bottom of the telescopic rod of the cylinder is fixedly connected to the slider, and the left side of the filter box is embedded in the slot.

[0012] As a further technical solution of this utility model, the left side of the straw is located on the right side of the baffle, and the left side of the straw extends into the bottom of the mixture in the water tank.

[0013] As a further technical solution of this utility model, a valve three is installed on the right rear side of the housing, a liquid pump two is installed at the bottom of the right side of the housing, and a return water pipe is fixed between the liquid pump two and the three-way pipe. A valve two is installed on the left side of the return water pipe, and a valve one is installed on the left side of the three-way pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the oil-water separation device for oilfield water treatment not only realizes the adjustment of the oil suction position and the filtration of particles in the water, but also realizes the flushing of the feed pipe;

[0015] (1) A vertical frame is installed at the rear of the center of the top of the water tank. After starting the servo motor, the screw inside the vertical frame is rotated and the vertical settling bracket is vertically lowered along the inner wall of the vertical frame. After the lower surface of the steel belt comes into contact with the oil on the liquid surface, the settling stops. After starting the drive motor, the magnet wheel is rotated and the steel belt is rotated with the assistance of the limit wheel. When the oil is transported to the top, it is scraped by the scraper and introduced into the collection box. The oil on the surface of the mixture can be cleaned, and the liquid at the bottom is introduced into the shell through the suction pipe for separation.

[0016] (2) By installing a housing on the right side of the outside of the water tank, start the liquid pump one, and draw the liquid from the right side of the baffle through the suction pipe. The filtered liquid will enter the filter box from the top to filter impurities in the water. The filter box is shaken along the slot by the cylinder continuously raising and lowering the slider to avoid clogging of the filter box mesh. Then it is discharged from the valve three, realizing multiple separation and filtration of the water-oil mixture.

[0017] (3) By fixing a return water pipe between the liquid pump 2 and the three-way pipe, the liquid stored inside the shell will be introduced into the three-way pipe through the return water pipe after the valve 3 is closed and the liquid pump 2 is turned on. At this time, the valve 1 is closed and the valve 2 is open, so that the high pressure liquid can be introduced into the three-way pipe and flush the feed pipe connected to its right side, so as to avoid the sticky oil stains at the pipe opening from affecting the normal introduction of materials, and to flush the oil stains with circulating liquid. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a front view schematic diagram of the bracket structure of this utility model;

[0020] Figure 3 This is a side sectional view of the bracket structure of this utility model;

[0021] Figure 4 This is a front view cross-sectional structural diagram of the box body of this utility model.

[0022] In the diagram: 9.1 Water tank; 2. T-pipe; 3. Valve 1; 4. Valve 2; 5. Feed pipe; 6. Return water pipe; 7. Support; 8. Vertical frame; 9. Servo motor; 10. Steel belt; 11. Magnetic wheel; 12. Scraper; 13. Collection box; 14. Liquid pump 1; 15. Suction pipe; 16. Cover plate; 17. Housing; 18. Liquid pump 2; 19. Filter box; 20. Baffle; 21. Limiting wheel; 22. Screw; 23. Drive motor; 24. Threaded block; 25. Slot; 26. Cylinder; 27. Slider; 28. Valve 3. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4An embodiment of this utility model provides an oil-water separation device for oilfield water treatment, including a water tank 1 and a three-way pipe 2. The three-way pipe 2 is installed in the upper left corner inside the water tank 1, and a guide pipe 5 is installed on the right side of the three-way pipe 2. A vertical frame 8 is installed behind the center of the top of the water tank 1, and a servo motor 9 is installed at the top of the outside of the vertical frame 8. A screw 22 is movably connected between the upper and lower parts inside the vertical frame 8. A threaded block 24 is threadedly connected to the outside of the screw 22, and a bracket 7 is welded to the front end of the threaded block 24. A drive motor 23 is installed on the upper part inside the bracket 7. A magnetic wheel 11 is movably connected to the upper part of the front end of the bracket 7, and a limiting wheel 21 is movably connected to the lower part of the front end of the bracket 7. A steel belt 10 is sleeved between the magnetic wheel 11 and the limiting wheel 21. A scraper 12 is installed on the right side of the vertical frame 8, and a collection box 13 is installed on the right side of the top of the water tank 1.

[0025] The output end of the drive motor 23 is fixedly connected to the magnet wheel 11, the bottom of the output end of the servo motor 9 is fixedly connected to the screw 22, the lower right corner of the scraper 12 is embedded in the collection box 13, the threaded block 24 moves up and down synchronously with the bracket 7, the magnet wheel 11 and the limit wheel 21 are on the same vertical plane, and the steel belt 10 moves clockwise between the magnet wheel 11 and the limit wheel 21.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, after starting the servo motor 9, the screw 22 inside the vertical frame 8 is rotated, and the vertical settling bracket 7 is vertically lowered along the inner wall of the vertical frame 8. The settling stops after the lower surface of the steel belt 10 comes into contact with the oil on the liquid surface. After starting the drive motor 23, the magnet wheel 11 is rotated and the steel belt 10 is rotated with the assistance of the limit wheel 21. When the oil is transported to the top, it is scraped by the scraper 12 and guided into the collection box 13 to clean the oil on the surface of the mixture.

[0027] A housing 17 is installed on the right side of the exterior of the water tank 1, and a slot 25 is fixed longitudinally on the left side inside the housing 17. A filter box 19 is movably connected in the slot 25, and a slider 27 is welded to the center of the right side of the exterior of the filter box 19. A cover plate 16 is fixed on the top of the housing 17, and a cylinder 26 is installed on the right side of the bottom of the cover plate 16. A baffle 20 is welded longitudinally on the right side inside the water tank 1. A suction pipe 15 is installed between the water tank 1 and the housing 17, and a liquid pump 14 is installed on the suction pipe 15.

[0028] The bottom of the telescopic rod of cylinder 26 is fixedly connected to slider 27. The left side of filter box 19 is embedded in slot 25. The left side of suction tube 15 is located to the right of baffle 20. The left side of suction tube 15 extends into the bottom of the mixture in water tank 1.

[0029] Specifically, such as Figure 1 and Figure 4As shown, start the liquid pump 14 and draw liquid from the right side of the baffle 20 through the suction pipe 15. The filtered liquid will enter the filter box 19 from above to filter impurities in the water. The filter box 19 is shaken along the slot 25 by the cylinder 26 continuously raising and lowering the slider 27 to avoid clogging of the mesh of the filter box 19. Then it is discharged from the valve 28.

[0030] A valve 28 is installed on the right rear side of the housing 17. A liquid pump 18 is installed on the bottom right side of the housing 17. A return water pipe 6 is fixed between the liquid pump 18 and the three-way pipe 2. A valve 4 is installed on the left side of the return water pipe 6. A valve 3 is installed on the left side of the three-way pipe 2.

[0031] Specifically, such as Figure 1 As shown, the liquid stored inside the housing 17 will be introduced into the three-way pipe 2 through the return water pipe 6 after the valve 3 28 is closed and the liquid pump 2 18 is turned on. At this time, the valve 1 3 is closed and the valve 2 4 is opened, so that the high-pressure liquid can be introduced into the three-way pipe 2 and flush the feed pipe 5 connected to its right side, so as to avoid sticky oil stains at the pipe opening that would affect the normal introduction of materials.

[0032] Working principle: When using this utility model, firstly, the servo motor 9 is started, and then the screw 22 inside the vertical frame 8 is rotated. The vertical settling bracket 7 is lowered along the inner wall of the vertical frame 8. The settling stops when the lower surface of the steel belt 10 contacts the oil on the liquid surface. Then, the drive motor 23 is started, and the magnetic wheel 11 is rotated. With the assistance of the limit wheel 21, the steel belt 10 is rotated. When the oil is transported to the top, it is scraped by the scraper 12 and guided into the collection box 13, which can clean the oil on the surface of the mixture. Then, the liquid pump 14 is started, and the liquid is drawn from the water tank 1 through the suction pipe 15 from the right side of the baffle 20. The liquid, after oil filtration, will enter the filter box 19 from above to filter impurities in the water. The filter box 19 will be shaken along the slot 25 by the continuous raising and lowering of the slider 27 by the cylinder 26 to prevent the mesh of the filter box 19 from being blocked. The liquid stored inside the housing 17 will be introduced into the three-way pipe 2 through the return water pipe 6 after the valve 3 28 is closed and the liquid pump 2 18 is turned on. At this time, the valve 1 3 is closed and the valve 2 4 is opened, so that the high-pressure liquid can be introduced into the three-way pipe 2 and flush the feed pipe 5 connected to its right side to prevent sticky oil stains from remaining at the pipe opening and affecting the normal introduction of materials.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An oil-water separation device for oilfield water treatment, comprising a water tank (1) and a tee joint (2), characterized in that: A three-way pipe (2) is installed in the upper left corner of the inside of the water tank (1), and a guide pipe (5) is installed on the right side of the three-way pipe (2). A vertical frame (8) is installed behind the center of the top of the water tank (1), and a servo motor (9) is installed at the top of the outside of the vertical frame (8). A screw (22) is movably connected between the upper and lower parts inside the vertical frame (8). A threaded block (24) is threadedly connected to the outside of the screw (22), and a bracket (7) is welded to the front end of the threaded block (24). A drive motor (23) is installed on the upper part inside the bracket (7). A magnet wheel (11) is movably connected to the upper part of the front end of the bracket (7). A limit wheel (21) is movably connected to the lower part of the front end of the bracket (7). A steel belt (10) is sleeved between the magnet wheel (11) and the limit wheel (21). A scraper (12) is installed on the right side of the vertical frame (8), and a collection box (13) is installed on the right side of the top of the water tank (1).

2. The oil-water separation device for oilfield water treatment according to claim 1, characterized in that: The output end of the drive motor (23) is fixedly connected to the magnet wheel (11), and the bottom of the output end of the servo motor (9) is fixedly connected to the screw (22).

3. The oil-water separation device for oilfield water treatment according to claim 1, characterized in that: The scraper (12) is embedded in the collection box (13) at the lower right corner, and the threaded block (24) moves up and down synchronously with the bracket (7).

4. The oil-water separation device for oilfield water treatment according to claim 1, characterized in that: The magnet wheel (11) and the limiting wheel (21) are on the same vertical plane, and the steel belt (10) moves clockwise between the magnet wheel (11) and the limiting wheel (21).

5. The oil-water separation device for oilfield water treatment according to claim 1, characterized in that: A housing (17) is installed on the right side of the outside of the water tank (1), and a slot (25) is fixed longitudinally on the left side inside the housing (17). A filter box (19) is movably connected in the slot (25), and a slider (27) is welded at the center of the right side of the outside of the filter box (19). A cover plate (16) is fixed on the top of the housing (17), and a cylinder (26) is installed on the right side of the bottom of the cover plate (16). A baffle (20) is welded longitudinally on the right side inside the water tank (1). A suction pipe (15) is installed between the water tank (1) and the housing (17), and a liquid pump (14) is installed on the suction pipe (15).

6. The oil-water separation device for oilfield water treatment according to claim 5, characterized in that: The bottom of the telescopic rod of the cylinder (26) is fixedly connected to the slider (27), and the left side of the filter box (19) is embedded in the slot (25).

7. An oil-water separation device for oilfield water treatment according to claim 5, characterized in that: The left side of the straw (15) is located to the right of the baffle (20), and the left side of the straw (15) extends into the bottom of the mixture in the water tank (1).

8. An oil-water separation device for oilfield water treatment according to claim 5, characterized in that: A valve three (28) is installed on the right rear of the housing (17), a liquid pump two (18) is installed at the bottom right side of the housing (17), and a return water pipe (6) is fixed between the liquid pump two (18) and the three-way pipe (2). A valve two (4) is installed on the left side of the return water pipe (6), and a valve one (3) is installed on the left side of the three-way pipe (2).

Images