Oil-water separation device

By introducing a diversion box design and automated control into the oil-water separation device, and utilizing density differences and liquid pressure control, efficient oil-water separation is achieved, solving the problems of incomplete separation and oil waste, and improving separation efficiency and water purification capabilities.

CN224071235UActive Publication Date: 2026-04-03ZHONGQI CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing oil-water separation devices are prone to incomplete separation when separating oil-water mixtures, resulting in significant waste of oil resources and inconvenient operation.

Method used

It adopts a diversion box design, which includes a combination structure of feed hopper, filter screen, treatment tank, baffle, liquid storage chamber, mounting plate, solenoid valve, oil-water separation screen and water pump. It achieves oil-water separation by controlling density difference and liquid pressure, and is equipped with liquid level sensor and PLC controller to realize automated operation.

Benefits of technology

It improves the quality of oil-water separation, reduces oil waste, increases separation efficiency, ensures water recycling through the purification process, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an oil-water separation device and belongs to the technical field of oil-water separation. The oil-water separation device comprises a flow dividing box, a feeding hopper is arranged at the top of the flow dividing box, a filter screen is arranged in the feeding hopper, a partition plate and a mounting plate are arranged in the flow dividing box, a liquid storage cavity is formed between the mounting plate and the partition plate, a treatment tank is arranged below the feeding hopper, and a water outlet is formed in the lower portion of the treatment tank. Through mutual cooperation of the feed hopper, the filter screen, the treatment tank, the partition plate, the liquid storage cavity, the mounting plate, the electromagnetic valve, an oil-water separation net and a second water pump, when oil floating at the upper end of the water exceeds the partition plate, the oil can fall into the liquid storage cavity, and when the oil in the liquid storage cavity is discharged, the oil can fall into the oil storage cavity. When the oil is stored to be consistent with the height of the mounting plate, the electromagnetic valve is controlled, and the water flows to the liquid storage cavity from the treatment tank, so that the oil-water mixture can be separated, the separation quality can be improved, and the oil waste is reduced compared with a common mode.
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Description

Technical Field

[0001] This utility model relates to the field of oil-water separation, and more specifically, to an oil-water separation device. Background Technology

[0002] Oil-water separators for petrochemical applications are specialized devices used to separate oil and water mixtures generated during petrochemical production. Their main function is to efficiently and accurately separate the oil and water phases in an oil-water mixture using physical, chemical, or combined physical-chemical methods. This ensures that the separated oil and water meet subsequent treatment or discharge standards, while simultaneously recovering valuable oil components and reducing environmental pollution. In the treatment of produced fluids from oil wells, oil-water separators can separate crude oil and produced water, recovering the crude oil and treating the produced water to meet environmental protection requirements or reinject it underground. In refineries, they are used to treat oily wastewater; the separated water can be recycled or discharged in compliance with standards, while the oil is recovered and reused.

[0003] In the specific process of separating oil-water mixtures, the oil-water mixture is usually poured onto a separating screen for separation. Although this method can separate the oil-water mixture, separating it directly through the screen not only easily leads to incomplete separation of the oil-water mixture, but also wastes oil and is inconvenient for operators. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an oil-water separation device that overcomes or at least partially solves the above technical problems.

[0005] This utility model is implemented as follows:

[0006] This utility model provides an oil-water separation device, including a diversion box.

[0007] The top of the diversion box is provided with a feed hopper, the inside of the feed hopper is provided with a filter screen, the inside of the diversion box is provided with a partition and a mounting plate, a liquid storage chamber is provided between the mounting plate and the partition, a processing tank is provided below the feed hopper, and a solenoid valve is provided inside the partition.

[0008] An oil storage chamber is provided on one side of the mounting plate, and an oil-water separation screen is provided inside the oil storage chamber.

[0009] In a preferred embodiment, the feed hopper has an installation groove inside, and the filter screen is disposed inside the installation groove.

[0010] In a preferred embodiment, the height of the partition is higher than the height of the mounting plate, and the solenoid valves are respectively disposed inside the treatment tank and the storage chamber.

[0011] In a preferred embodiment, a first water pump is provided on one side of the diversion box, and an installation pipe is provided on the top of the first water pump, the installation pipe being inserted into the interior of the liquid storage chamber.

[0012] In a preferred embodiment, a fixed pipe is provided at the other end of the first water pump, and a water storage tank is provided at one end of the fixed pipe.

[0013] In a preferred embodiment, a second water pump is provided on one side of the diversion box, and an assembly pipe is provided on the top of the second water pump, the assembly pipe being located inside the oil storage chamber.

[0014] In a preferred embodiment, the other end of the second water pump is provided with a delivery pipe, and one end of the delivery pipe is provided with an oil storage tank.

[0015] In a preferred embodiment, a PLC controller is provided on one side of the diversion box, and liquid level sensors are provided inside both the processing tank and the storage chamber.

[0016] The oil-water separation device provided by this utility model has the following beneficial effects:

[0017] 1. Through the coordinated operation of the feed hopper, filter screen, treatment tank, baffle, storage chamber, mounting plate, solenoid valve, oil-water separator, and second water pump, when the oil floating on the water exceeds the baffle, the oil can fall into the storage chamber. When the oil in the storage chamber reaches the same height as the mounting plate, the solenoid valve is controlled. At this time, the water pressure at the bottom of the treatment tank is greater than the pressure at the bottom of the storage chamber, and the water will flow from the treatment tank to the storage chamber. When the water flows into the storage chamber, the oil at the top of the storage chamber can fall into the oil storage chamber through the mounting plate. The second water pump is then activated, and the oil can be filtered through the oil-water separator, thereby separating the oil-water mixture and improving the separation quality. Compared with commonly used methods, this reduces oil waste.

[0018] 2. Through the cooperation of the first water pump, the liquid storage chamber, the fixed pipe, and the water storage tank, when the operator needs to recycle water, the operator can first start the first water pump to draw water from the inside of the liquid storage chamber. When the water is drawn out, it can be filtered through the filter unit. After filtration, it is transported to the inside of the water storage tank through the fixed pipe. Through the above settings, the water can be further purified, and small amounts of oil droplets and suspended solids in the water can be removed, making it convenient for the operator to use. By setting the installation slot, when the operator needs to replace or clean the filter screen, it can be directly pulled out for replacement or cleaning. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an overall perspective view provided by an embodiment of the present utility model;

[0021] Figure 2 A schematic diagram of the internal structure of the liquid storage chamber provided for an embodiment of this utility model;

[0022] Figure 3 A schematic diagram of the bottom structure of the diversion box provided for an embodiment of this utility model;

[0023] Figure 4 A schematic diagram of one side of the diversion box provided for an embodiment of this utility model;

[0024] In the diagram: 11. Diverter box; 12. Feed hopper; 13. Filter screen; 14. Processing tank; 15. Baffle plate; 16. Liquid storage chamber; 17. Solenoid valve; 18. Mounting plate; 19. Oil storage chamber; 2. Water storage tank; 21. Oil storage tank; 22. Mounting groove; 23. Mounting pipe; 24. First water pump; 25. Fixed pipe; 26. Assembly pipe; 27. Second water pump; 28. Conveying pipe; 3. Oil-water separator. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Reference Figures 1-4This utility model provides a technical solution: an oil-water separation device, including a diversion box 11, a feed hopper 12 at the top of the diversion box 11, a filter screen 13 inside the feed hopper 12, a partition 15 and a mounting plate 18 inside the diversion box 11, a liquid storage chamber 16 between the mounting plate 18 and the partition 15, a processing tank 14 below the feed hopper 12, a solenoid valve 17 inside the partition 15, which balances the liquid in the liquid storage chamber 16 and the processing tank 14, and an oil storage chamber 19 on one side of the mounting plate 18. The internal structure of 19 is equipped with an oil-water separator 3. Through the cooperation of the feed hopper 12, filter screen 13, processing tank 14, baffle 15, storage chamber 16, mounting plate 18, solenoid valve 17, oil-water separator 3, and second water pump 27, when the operator needs to separate the oil-water mixture, the operator can first feed the oil-water mixture from the feed hopper 12 into the processing tank 14. When fed, the oil-water mixture falls onto the top of the filter screen 13. The filter screen 13 can filter out large solid particles in the oil-water mixture and stabilize the flow rate. After completion, the oil-water mixture... The oil can then fall into the processing tank 14. Due to the density difference between oil and water, the oil will float on top of the water. By continuously pouring in the oil-water mixture, when the oil floating on the water exceeds the baffle 15, the oil can fall into the storage chamber 16. When the oil in the storage chamber 16 reaches the same height as the mounting plate 18, water will be mixed into the oil inside the storage chamber 16. At this time, the operator can control the solenoid valve 17. Since the height of the baffle 15 is higher than the height of the mounting plate 18, the water pressure at the bottom of the processing tank 14 is greater than the pressure at the bottom of the storage chamber 16, causing the water to... The water flows from the treatment tank 14 to the storage chamber 16. When the water flows into the storage chamber 16, the oil at the top of the storage chamber 16 can fall into the oil storage chamber 19 through the mounting plate 18. When the oil storage chamber 19 is full, the operator can start the second water pump 27. The second water pump 27 draws out the oil from the oil storage chamber 19 through the assembly pipe 26. When the oil is drawn out, it can be filtered through the oil-water separator 3. After the oil is drawn out, it is transported to the oil storage tank 21, thereby separating the oil-water mixture and improving the separation quality. Compared with the commonly used method, it can reduce oil waste.

[0027] Reference Figures 1-4In a preferred embodiment, the feed hopper 12 has an installation groove 22 inside, a filter screen 13 is disposed inside the installation groove 22, the height of the partition 15 is higher than the height of the installation plate 18, solenoid valves 17 are respectively disposed inside the processing tank 14 and the storage chamber 16, a first water pump 24 is disposed on one side of the diversion box 11, an installation pipe 23 is disposed on the top of the first water pump 24, the installation pipe 23 is inserted into the storage chamber 16, a fixed pipe 25 is disposed at the other end of the first water pump 24, a water storage tank 2 is disposed at one end of the fixed pipe 25, and the water flows through the first water pump 24, the storage chamber 16, and the fixed pipe 25. In conjunction with the water storage tank 2, when the operator needs to recycle water, the operator can first start the first water pump 24 to draw water from the inside of the liquid storage chamber 16. When the water is drawn out, it can be filtered through the filter unit. After filtration, it is transported to the inside of the water storage tank 2 through the fixed pipe 25. Through the above settings, the water can be further purified, and small amounts of oil droplets and suspended solids in the water can be further removed, making it convenient for the operator to use. By setting the installation groove 22, when the operator needs to replace or clean the filter screen 13, it can be directly pulled out for replacement or cleaning.

[0028] Reference Figures 1-4 In a preferred embodiment, a second water pump 27 is provided on one side of the diversion box 11, and an assembly pipe 26 is provided on the top of the second water pump 27. The assembly pipe 26 is located inside the oil storage chamber 19. A delivery pipe 28 is provided at the other end of the second water pump 27, and an oil storage tank 21 is provided at one end of the delivery pipe 28. A PLC controller is provided on one side of the diversion box 11. By setting the PLC controller, the solenoid valve 17 can be controlled, and it can also be used in conjunction with the liquid level sensor. Liquid level sensors are provided inside both the processing tank 14 and the liquid storage chamber 16. A liquid level sensor is a device that can sense the liquid level height. It mainly works based on different physical principles, such as the buoyancy principle, the hydrostatic principle, and the capacitance principle. For example, a float-type liquid level sensor rises when the water level rises, and converts the liquid level change into an electrical signal through mechanical linkage or magnetic coupling. A hydrostatic liquid level sensor is based on the principle that the pressure at the bottom of the liquid is proportional to the liquid level height. It uses a pressure sensor to measure the pressure at the bottom of the liquid to calculate the liquid level height.

[0029] The distribution box 11 has a filter unit on one side, and the installation pipe 23 is inserted inside the filter unit. The filter unit can be a sand filter, an activated carbon filter, a fiber filter, etc. The sand filter uses quartz sand of different particle sizes to filter impurities in the water, the activated carbon filter mainly adsorbs organic matter and residual oil in the water, and the fiber filter removes small particles through the interception of fibers. By setting up the filter unit, the water purification can be further improved.

[0030] Specifically, the working process or principle of this oil-water separation device is as follows: In the specific separation of oil-water mixtures, the oil-water mixture is usually poured into a separation screen for separation. Although this method can separate the oil-water mixture, direct separation through the separation screen not only easily leads to incomplete separation of the oil-water mixture, but also wastes oil and is inconvenient for operators. Therefore, this technical solution can solve the above problems. When the operator needs to separate the oil-water mixture, the operator can first put the oil-water mixture into the processing tank 1 from the feed hopper 12. Inside tank 4, when the oil-water mixture is added, it falls to the top of filter screen 13. Filter screen 13 can filter large solid impurities in the oil-water mixture and stabilize the flow rate. After completion, the oil-water mixture falls into the treatment tank 14. At this time, due to the difference in density between oil and water, the oil will float on top of the water. By continuously pouring in the oil-water mixture, when the oil floating on the water exceeds the baffle 15, the oil can fall into the storage chamber 16. When the oil in the storage chamber 16 is stored at the same height as the mounting plate 18, water will be mixed into the oil in the storage chamber 16. At this time, the operator can control the flow. When the solenoid valve 17 is activated, because the height of the partition 15 is higher than the height of the mounting plate 18, the water pressure at the bottom of the treatment tank 14 is greater than the pressure at the bottom of the storage chamber 16. Water will flow from the treatment tank 14 to the storage chamber 16. When the water flows into the storage chamber 16, the oil at the top of the storage chamber 16 can fall through the mounting plate 18 into the oil storage chamber 19. When the oil storage chamber 19 is full, the operator can start the second water pump 27. The second water pump 27 extracts the oil from the oil storage chamber 19 through the assembly pipe 26. During extraction, the oil can be filtered through the oil-water separator 3. After extraction, the oil is then transported to the oil storage chamber. The oil-water mixture can be separated inside the tank 21, improving the quality of separation. Compared with the commonly used method, it can reduce oil waste and is more convenient for the operator. When the operator needs to recycle water, the operator can first start the first water pump 24 to draw water from the inside of the liquid storage chamber 16. When the water is drawn out, it can be filtered through the filter unit. After filtration, it is transported to the inside of the water storage tank 2 through the fixed pipe 25. Through the above settings, the water can be further purified, and small amounts of oil droplets and suspended solids in the water can be further removed, making it more convenient for the operator to use. At this point, all processes are completed.

[0031] It should be noted that the solenoid valve 17, the first water pump 24 and the second water pump 27 are all electrically connected to an external power supply and are existing devices or equipment, or devices or equipment that can be implemented with existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

Claims

1. An oil-water separation device, characterized by: Including a flow divider (11), The top of the flow divider (11) is provided with a feeding hopper (12), the inside of the feeding hopper (12) is provided with a filter screen (13), the inside of the flow divider (11) is provided with a partition plate (15) and a mounting plate (18), a liquid storage cavity (16) is arranged between the mounting plate (18) and the partition plate (15), the lower portion of the feeding hopper (12) is provided with a treatment tank (14), the inside of the partition plate (15) is provided with a solenoid valve (17). One side of the mounting plate (18) is provided with an oil storage cavity (19), and the inside of the oil storage cavity (19) is provided with an oil-water separation screen (3).

2. The oil-water separation device of claim 1, wherein The inside of the feeding hopper (12) is provided with a mounting groove (22), and the filter screen (13) is arranged in the mounting groove (22).

3. An oil-water separation device according to claim 2, characterized in that The height of the partition plate (15) is higher than that of the mounting plate (18), and the solenoid valve (17) is arranged in the treatment tank (14) and the liquid storage cavity (16) respectively.

4. An oil-water separation device according to claim 3, characterized in that One side of the flow divider (11) is provided with a first water pump (24), the top of the first water pump (24) is provided with a mounting pipe (23), and the mounting pipe (23) is inserted into the inside of the liquid storage cavity (16).

5. An oil-water separation device according to claim 4, characterized in that The other end of the first water pump (24) is provided with a fixed pipe (25), one end of the fixed pipe (25) is provided with a water storage bucket (2).

6. An oil-water separation device according to claim 5, characterized in that One side of the flow divider (11) is provided with a second water pump (27), the top of the second water pump (27) is provided with an assembly pipe (26), and the assembly pipe (26) is arranged in the inside of the oil storage cavity (19).

7. An oil-water separation device according to claim 6, characterized in that The other end of the second water pump (27) is provided with a conveying pipe (28), one end of the conveying pipe (28) is provided with an oil storage bucket (21).

8. An oil-water separation device according to claim 7, characterized in that One side of the flow divider (11) is provided with a PLC controller, and the inside of the treatment tank (14) and the liquid storage cavity (16) is provided with a liquid level sensor.