Novel efficient oil-water separator

Abstract

The utility model discloses a novel efficient oil-water separator which comprises an oil-water separation barrel, a first chamber, a second chamber and a third chamber are arranged in the oil-water separation barrel, the second chamber is respectively communicated with the first chamber and the third chamber, an overflow box is arranged at the upper end of the second chamber, and an oil outlet is formed in the bottom of the overflow box; a water inlet is eccentrically formed in the upper portion of the cyclone separation barrel, an overflow pipe coaxial with the cyclone separation barrel is arranged in the cyclone separation barrel, a drainage pipe is arranged in the third cavity, a threaded sleeve is connected to the upper end of the drainage pipe, a hollow adjusting cap is arranged on the top of the threaded sleeve, and a liquid return opening is formed in the upper edge of the threaded sleeve. The liquid return port is lower than the bottom of the overflow box. The oil-water separation device is compact in structure, small in size, capable of continuously and efficiently separating water and oil, high in oil-water layering speed and high in efficiency, the height of an oil-water interface in the second cavity is adjusted by adjusting the height of the liquid return opening through the adjusting cap, and the oil-water separation device can be suitable for efficient water-oil separation of sewage with different oil contents.

Description

Technical Field

[0001] This utility model relates to the field of oil-water separators, specifically a new type of high-efficiency oil-water separator. Background Technology

[0002] An oil-water separator is a device used to separate oil and water from an oil-water mixture. It is widely used in various fields such as industry, catering, shipbuilding, environmental protection, and daily life. Its main purpose is to separate oil from water through physical or chemical methods to meet water purification and environmental protection standards.

[0003] The basic working principle of an oil-water separator is to separate oil and water based on their density difference. Most oils are less dense than water, so they float on the surface due to gravity, while the water sinks to the bottom.

[0004] Oil-water separators have a wide range of applications, including oil extraction, chemical production, wastewater treatment, food processing, the catering industry, and marine environmental protection. In the catering industry, oil-water separators are used to treat catering wastewater, ensuring that the water quality meets discharge standards. In addition, they are also used in painting operations and on deep-sea fishing vessels to reduce environmental pollution.

[0005] Chinese invention patent CN101947399B discloses an oil-water separator, which includes a casing with a filtration chamber at the top and a separation chamber at the bottom. The separation chamber contains a combined tank consisting of an oil storage tank, a mixing tank, and a water storage tank, along with connecting pipes and valves. It can treat swill generated by the catering industry on-site, achieving solid-liquid separation and oil-water separation simultaneously in one unit, ensuring that the discharged wastewater meets national discharge standards and effectively reducing the pollution of kitchen wastewater to the environment. However, this oil-water separator is relatively large, requires continuous monitoring of the oil-water separation interface height in the oil storage tank during the separation process, and necessitates intermittent oil discharge operations, which is labor-intensive and inefficient. Utility Model Content

[0006] To address the aforementioned problems, this invention provides a novel high-efficiency oil-water separator that can automatically and continuously separate oil and water, and is suitable for oil-water separation processes with varying oil contents.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] This utility model provides a novel high-efficiency oil-water separator, comprising an oil-water separation cylinder and a cyclone separator. The oil-water separation cylinder has a separator cover at the top and a bottom plate at the bottom. The oil-water separation cylinder contains a first partition and a second partition, which divide the interior of the oil-water separation cylinder into a first chamber, a second chamber, and a third chamber. A first connecting port is opened at the lower part of the first partition, connecting the first chamber and the second chamber. A second connecting port is opened at the bottom of the first partition, connecting the second chamber and the third chamber. An overflow box is provided at the upper end of the second chamber, and an oil outlet is opened at the bottom of the overflow box. The cyclone separator is fixed to the separator cover, and the cyclone separator... The top of the cylinder is equipped with a sealing plate. The upper part of the cyclone separator cylinder is eccentrically equipped with a water inlet. The lower part of the cyclone separator cylinder extends into the first chamber, and the bottom of the cyclone separator cylinder is higher than the first connecting port. An overflow pipe coaxial with the cyclone separator cylinder is provided inside. The overflow pipe is fixed to the bottom plate, and the lower end of the overflow pipe passes through the bottom plate, while the upper end is flush with the lower edge of the water inlet. A drain pipe is provided in the third chamber. The drain pipe is fixed to the bottom plate, and the lower end of the drain pipe passes through the bottom plate. A threaded sleeve is connected to the upper end of the drain pipe, and the top of the threaded sleeve is equipped with a hollow adjusting cap. The upper edge of the threaded sleeve is a return port. The height of the return port can be adjusted by adjusting the cap. The height of the return port is lower than the bottom of the overflow box.

[0009] Furthermore, an oil receiving tank is provided below the overflow box.

[0010] Furthermore, hooks are hinged to both sides of the oil receiving tank, and steel branches are provided on the oil-water separation cylinder. The oil receiving tank is fixed to one side of the oil-water separation cylinder by hanging the steel branches with the hooks.

[0011] Furthermore, the oil receiving drum is equipped with handles on both sides.

[0012] Furthermore, the separator cover is provided with a transparent plate, which is located at the top of the third chamber.

[0013] Furthermore, an oil filter screen is provided on the second connecting port.

[0014] Furthermore, the bottom of both sides of the oil-water separator is provided with connecting parts.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention provides a novel high-efficiency oil-water separator with a compact structure and small size, capable of continuous and efficient separation of oil and water. By incorporating a cyclone separator, the incoming oily wastewater generates centrifugal force during its downward rotation, causing the oil to accumulate in the water flow. This not only facilitates the floating of the accumulated oil in the second chamber, increasing the oil-water stratification rate, but also reduces the content of tiny suspended oil droplets in the water. The water in the second chamber is further filtered through an oil filter before entering the third chamber. The oil filter removes most of the suspended oil droplets, resulting in extremely low oil content in the water entering the third chamber, meeting discharge standards.

[0017] Furthermore, when the oil content in the wastewater varies, the thickness of the oil layer formed in the second chamber differs. Due to the principle of interconnection, the height of the return port can be adjusted by adjusting the cap, thereby adjusting the height of the oil-water interface in the second chamber. This ensures that the oil-water interface is slightly lower than the bottom of the overflow box, allowing the floating oil layer to flow into the overflow box as completely as possible. This results in the oil being separated as completely as possible, improving the oil-water separation efficiency. This method is applicable to the efficient separation of oil and water in wastewater with different oil contents, requires minimal manual intervention, has a high degree of automation, and has promising application prospects. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a front view of the present invention;

[0022] Figure 3 yes Figure 2 AA section view;

[0023] Figure 4 This is a top view of the present invention;

[0024] The components are as follows: 1. Oil-water separator body; 2. Cyclone separator; 3. Separator cover; 4. Oil receiving tank; 5. Adjusting cap; 6. Transparent plate; 7. Water inlet; 8. Overflow box; 9. Connecting parts; 10. Steel rod; 11. Hook; 12. First partition; 13. Second chamber; 14. Oil outlet; 15. Drain pipe; 16. First chamber; 17. First connecting port; 18. Base plate; 19. Overflow pipe; 20. Second partition; 21. Return port; 22. Threaded sleeve; 23. Third chamber; 24. Second connecting port; 25. Handle; 26. Sealing plate; 27. Flange. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] See Figure 1-4The present invention provides a novel high-efficiency oil-water separator, comprising an oil-water separation cylinder 1 and a cyclone separation cylinder 2. The top of the oil-water separation cylinder 1 is provided with a separator cover 3. The oil-water separation cylinder 1 contains a first partition 12 and a second partition 20. The bottom of the oil-water separation cylinder 1 is provided with a bottom plate 18. The first partition 12 and the second partition 20 divide the interior of the oil-water separation cylinder 1 into a first chamber 16, a second chamber 13, and a third chamber 23. A first connecting port 17 is provided at the lower part of the first partition 12, connecting to the first chamber 16. The second chamber 13 is connected to the third chamber 23. The bottom of the first partition 12 is provided with a second connecting port 24, and an oil filter screen is provided on the second connecting port 24. The second chamber 13 is provided with an overflow box 8 at the upper end, and an oil outlet 14 is provided at the bottom of the overflow box 8. An oil receiving tank 4 is provided below the overflow box 8. The oil receiving tank 4 is provided with handles 25 on both sides and hooks 11 are hinged to it. A steel branch 10 is provided on the oil-water separation cylinder 1. By hooking the steel branch 10 with the hooks 11, the oil receiving tank 4 is fixed to one side of the oil-water separation cylinder 1. The cyclone separator 2 is fixed to the separator cover 3 by a flange 27. A sealing plate 26 is provided at the top of the cyclone separator 2. An inlet 7 is eccentrically positioned at the top of the cylindrical body of the cyclone separator 2. The lower part of the cyclone separator 2 extends into the first chamber 16. The bottom of the cyclone separator 2 is unsealed and positioned higher than the first connecting port 17. An overflow pipe 19 is provided in the first chamber 16. Both ends of the overflow pipe 19 are unsealed. The overflow pipe 19 is fixed to the base plate 18, and its lower end passes through the base plate 18. An overflow pipe 19 is coaxial with the base plate 18. The upper part of the overflow pipe 19 extends into the cyclone separator 2, and its upper end is connected to the inlet. The lower edge of the outlet 7 is flush with the overflow pipe 19 and the cyclone separator 2 are coaxial; the upper cover 3 of the separator is provided with a transparent plate 6, which is located at the top of the third chamber 23. The third chamber 23 is provided with a drain pipe 15, which is fixed on the bottom plate 18 and the lower end of the drain pipe 15 passes through the bottom plate 18. The upper end of the drain pipe 15 is provided with an external thread and connected to a threaded sleeve 22. The top of the threaded sleeve 22 is provided with a hollow adjusting cap 5. The upper edge of the threaded sleeve 22 is the return port 21. By rotating the threaded sleeve 22 through the adjusting cap 5, the height of the return port 21 can be adjusted. The height of the return port 21 is always lower than the height of the bottom of the overflow box 8.

[0027] The oil-water separator 1 has connectors 9 at the bottom of both sides, which fix the oil-water separator 1 above the sewage tank. The sewage tank contains oily sewage to be treated. The oily sewage is pumped into the inlet 7. Since the inlet 7 is eccentrically positioned, the oily sewage enters the cyclone separator 2 at a tangential angle and spirals downward around the overflow pipe 9, generating a certain centrifugal force. Due to the density difference between oil and water, the oil accumulates on the outer surface of the overflow pipe 9. After the oily sewage spirals downward along the overflow pipe 9 into the first chamber 16, it then enters the second chamber 12 through the first connecting port 17 in a manner that enriches the oil at the center of the rotating water flow. In the second chamber 12, the accumulated oil automatically floats to the surface, forming an oil layer. Water passes through the oil filter screen on the second connecting port 24 and enters the third chamber 23. As the oily wastewater is continuously fed into the cyclone separator 2, the liquid levels in the second chamber 12 and the third chamber 23 continuously rise. When the water level in the third chamber 23 is higher than the return port 21, the water enters the drain pipe 15 from the return port 21 and is discharged from the bottom of the discharge pipe 15. At the same time, due to the connection, the oil layer level in the second chamber 12 is higher than the bottom of the overflow box 8. Therefore, the oil layer floating on the surface can flow into the overflow box 8 and into the oil receiving tank 4 through the oil drain port 14, thus completing the oil-water separation.

[0028] The overflow pipe 19 can also balance the air pressure in the first chamber 16. At the same time, a small amount of oily sewage flowing in from the inlet 7 may splash into the overflow pipe 19. This part of the oily sewage can flow back into the sewage tank through the overflow pipe 19.

[0029] In this invention, a cyclone separator 2 is incorporated, allowing the incoming oily wastewater to generate centrifugal force during its downward rotation. This causes the oil to accumulate in the water flow, facilitating its upward floatation in the second chamber 12 and increasing the rate of oil-water stratification. Furthermore, it reduces the content of tiny suspended oil droplets in the water. The water in the second chamber 12 then passes through an oil filter screen before entering the third chamber 23. The oil filter screen removes most of the suspended oil droplets, resulting in extremely low oil content in the water entering the third chamber 23, meeting discharge standards.

[0030] In addition, when the oil content in the wastewater is different, the thickness of the oil layer formed in the second chamber is different. At this time, the transparent plate 6 can be opened, and the height of the return port 21 can be adjusted by adjusting the cap 5. This allows the height of the oil-water interface in the second chamber 12 to be adjusted so that the oil-water interface is slightly lower than the bottom of the overflow box 8, so that the oil layer flows into the overflow box as completely as possible, thereby separating the oil as completely as possible, improving the oil-water separation efficiency. This method is applicable to the efficient separation of oil and water in wastewater with different oil contents.

[0031] The above is a further detailed description of the present utility model in conjunction with specific embodiments, and it should not be considered that the specific implementation of the present utility model is limited to this. For those skilled in the art to which the present utility model pertains and related fields, any extensions, operation methods, and data substitutions made based on the technical solution concept of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A novel high-efficiency oil-water separator, characterized in that: It includes an oil-water separator cylinder (1) and a cyclone separator cylinder (2); the oil-water separator cylinder (1) is provided with a separator cover (3) at the top and a bottom plate (18) at the bottom. The oil-water separator cylinder (1) is provided with a first partition (12) and a second partition (20), which divide the interior of the oil-water separator cylinder (1) into a first chamber (16), a second chamber (13) and a third chamber (23). The first partition (12) has a first connecting port at the bottom. 17), the first chamber (16) and the second chamber (13) are connected through the first connecting port (17). The bottom of the first partition (12) is provided with a second connecting port (24), which connects the second chamber (13) and the third chamber (23). The upper end of the second chamber (13) is provided with an overflow box (8), and the bottom of the overflow box (8) is provided with an oil outlet (14). The cyclone separator (2) is fixed on the separator cover (3), and the top of the cyclone separator (2) is provided with a sealing plate. (26) The cyclone separator (2) is eccentrically provided with an inlet (7) at the top. The lower part of the cyclone separator (2) extends into the first chamber (16), and the bottom of the cyclone separator (2) is higher than the first connecting port (17). An overflow pipe (19) is provided coaxially inside the cyclone separator (2). The overflow pipe (19) is fixed on the bottom plate (18), and the lower end of the overflow pipe (19) passes through the bottom plate (18), while the upper end is flush with the lower edge of the inlet (7). The third chamber (2) 3) A drain pipe (15) is provided inside. The drain pipe (15) is fixed on the base plate (18), and the lower end of the drain pipe (15) passes through the base plate (18). The upper end of the drain pipe (15) is connected to a threaded sleeve (22), and the top of the threaded sleeve (22) is provided with a hollowed-out adjusting cap (5). The upper edge of the threaded sleeve (22) is a return port (21). The height of the return port (21) can be adjusted by adjusting the cap (5). The height of the return port (21) is lower than the height of the bottom of the overflow box (8).

2. The novel high-efficiency oil-water separator according to claim 1, characterized in that: An oil receiving tank (4) is provided below the overflow box (8).

3. The novel high-efficiency oil-water separator according to claim 2, characterized in that: The oil receiving tank (4) is hinged with hooks (11) on both sides, and the oil-water separation cylinder (1) is provided with steel branches (10). The steel branches (10) are hung by the hooks (11) so that the oil receiving tank (4) is fixed on one side of the oil-water separation cylinder (1).

4. The novel high-efficiency oil-water separator according to claim 2 or 3, characterized in that: The oil receiving tank (4) is provided with handles (25) on both sides.

5. The novel high-efficiency oil-water separator according to any one of claims 1-3, characterized in that: The separator cover (3) is provided with a transparent plate (6), which is located on the top of the third chamber (23).

6. The novel high-efficiency oil-water separator according to any one of claims 1-3, characterized in that: An oil filter screen is provided on the second connecting port (24).

7. The novel high-efficiency oil-water separator according to any one of claims 1-3, characterized in that: The oil-water separator (1) has connecting parts (9) at the bottom of both sides.

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