An oil-water separation device for petroleum wastewater

By filtering impurities in petroleum wastewater using a spiral conveyor and filter structure, and adjusting the position of the pumping pipe using a telescopic hose and regulating components, the problem of impurity interference in oil-water separation of petroleum wastewater is solved, achieving a highly efficient and automated oil-water separation effect.

CN224430307UActive Publication Date: 2026-06-30JIANGSU QISHENG ENVIRONMENTAL PROTECTION TECH DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU QISHENG ENVIRONMENTAL PROTECTION TECH DEV CO LTD
Filing Date
2025-08-06
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Oil wastewater contains a large number of harmful substances and particulate impurities, which leads to an unstable oil-water interface, low separation efficiency, difficulty in cleaning, and incomplete oil extraction.

Method used

Impurities are filtered using a spiral conveyor and filter structure. The position of the pumping pipe is adjusted by a telescopic hose and adjustment components. The spiral conveyor is driven to rotate by a PLC controller and a geared motor. The separation process is monitored by observation components to achieve automated control.

Benefits of technology

It improves oil-water separation efficiency, reduces manual cleaning work, ensures thorough oil extraction, and enhances the automation and stability of the separation unit.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an oil-water separation device for petroleum wastewater, including a separation chamber. A first conveying pipe is fixedly connected to the top of the separation chamber, and a booster pump is fixedly connected to the first conveying pipe. One end of the first conveying pipe passes through the separation chamber and is fixedly connected to a telescopic hose inside the separation chamber. One end of the telescopic hose is fixedly connected to an adjustment chamber, and a water suction pipe is fixedly connected to the telescopic hose. An adjustment component is provided at the top of the separation chamber and on one side of the first conveying pipe, and an observation component is provided on one side of the separation chamber. In this utility model, before the petroleum wastewater enters the separation chamber, the rotation of the spiral conveying rod in the second conveying pipe discharges particulate impurities such as mud and sand in the wastewater through a discharge pipe. The liquid enters the separation chamber through the filter holes on the spiral conveying rod, preventing particulate impurities such as mud and sand from entering the separation chamber.
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Description

Technical Field

[0001] This utility model relates to the field of oil-water separation technology, and in particular to an oil-water separation device for petroleum wastewater. Background Technology

[0002] Petroleum wastewater is a complex type of industrial wastewater generated during petroleum extraction, refining, storage, and transportation. Its composition varies depending on its source, but it generally contains large amounts of harmful substances. This type of wastewater not only contains petroleum-based substances such as alkanes, cycloalkanes, and aromatic hydrocarbons, but also often contains pollutants such as sulfides, phenols, heavy metals, salts, and various additives. Petroleum-based substances are difficult to degrade and easily accumulate in organisms. Once released into the environment without treatment or with improper treatment, they can cause serious pollution to water bodies, soil, and air, disrupting the ecological balance and potentially threatening human health through the food chain.

[0003] Wastewater often contains particulate impurities such as silt and sand. These impurities interfere with the stability of the oil-water interface when they enter the separation chamber, leading to reduced separation efficiency. They also settle in the separation chamber, requiring significant manpower for cleaning. Furthermore, the complex composition of petroleum wastewater causes fluctuations in the oil-water interface. When the oil-water interface shifts, the pumping pipe cannot accurately align with the oil layer, resulting in incomplete oil extraction. To overcome these disadvantages, this invention provides an oil-water separation device for petroleum wastewater. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an oil-water separation device for petroleum wastewater.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an oil-water separation device for petroleum wastewater, comprising a separation chamber, a first conveying pipe fixedly connected to the top of the separation chamber, a booster pump fixedly connected to the first conveying pipe, a telescopic hose fixedly connected to one end of the first conveying pipe passing through the separation chamber and located inside the separation chamber, an adjustment chamber fixedly connected to one end of the telescopic hose, a water pumping pipe fixedly connected to the telescopic hose, an adjustment component provided at the top of the separation chamber and on one side of the first conveying pipe, an observation component provided on one side of the separation chamber, a second conveying pipe fixedly connected to the inlet of the separation chamber, a spiral conveying rod rotatably connected to the second conveying pipe, a plurality of filter holes opened on the spiral conveying rod, and a support frame fixedly connected to the second conveying pipe.

[0006] Furthermore, the regulating component includes a telescopic pipe fixedly connected to the top of the separation chamber and located on one side of the first delivery pipe. One end of the telescopic pipe passes through the separation chamber and is fixedly connected to the water inlet of the regulating chamber. A valve is fixedly connected to the telescopic pipe.

[0007] Furthermore, the observation assembly includes an observation port located on one side of the separation chamber, and tempered glass is fixedly connected to the observation port.

[0008] Furthermore, a feed pipe is fixedly connected to the feed inlet of the second conveying pipe, and a discharge pipe is fixedly connected to the discharge outlet of the second conveying pipe.

[0009] Furthermore, a reduction motor is fixedly connected to one end of the second conveying pipe, and the output end of the reduction motor passes through the second conveying pipe and is fixedly connected to one end of the spiral conveying rod.

[0010] Furthermore, a control panel is fixedly connected to one side of the separation chamber, and a PLC controller is fixedly connected to one side of the separation chamber and below the control panel. The PLC controller and the control panel are electrically connected.

[0011] The beneficial effects of this utility model are:

[0012] In use, this invention utilizes a spiral conveying rod and filter holes in the second conveying pipe to discharge particulate impurities such as mud and sand from the wastewater through a discharge pipe before the oily wastewater enters the separation chamber. The liquid then enters the separation chamber through the filter holes on the spiral conveying rod, preventing particulate impurities such as mud and sand from entering the separation chamber. The water volume in the regulating chamber is increased or decreased by adjusting the telescopic pipe on the adjusting component. The weight of the regulating chamber is adjusted according to the actual situation of oil-water separation, thereby flexibly changing the position of the water suction pipe on the telescopic hose as needed, thus improving the progress of oil-water separation. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 : A perspective view of the left front of this utility model;

[0015] Figure 2 : A perspective view of the front right side of this utility model;

[0016] Figure 3 : Schematic diagram of the internal structure of the separation chamber of this utility model;

[0017] Figure 4 : Schematic diagram of the internal structure of the second conveying pipe of this utility model.

[0018] The attached figures are labeled as follows:

[0019] 1. Separation chamber; 2. Observation port; 3. Tempered glass; 4. Control panel; 5. PLC controller; 6. First conveying pipe; 7. Booster pump; 8. Telescopic hose; 9. Telescopic pipe; 10. Valve; 11. Adjustment chamber; 12. Water pumping pipe; 13. Support frame; 14. Second conveying pipe; 15. Feed pipe; 16. Waste discharge pipe; 17. Screw conveyor; 18. Filter hole; 19. Gear motor. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-4 As shown, an oil-water separation device for petroleum wastewater is disclosed, comprising a separation chamber 1, a first conveying pipe 6 fixedly connected to the top of the separation chamber 1, a booster pump 7 fixedly connected to the first conveying pipe 6, a telescopic hose 8 fixedly connected to one end of the first conveying pipe 6 inside the separation chamber 1, an adjustment chamber 11 fixedly connected to one end of the telescopic hose 8, a water pumping pipe 12 fixedly connected to the telescopic hose 8, an adjustment component located at the top of the separation chamber 1 and on one side of the first conveying pipe 6, an observation component located on one side of the separation chamber 1, a second conveying pipe 14 fixedly connected to the inlet of the separation chamber 1, a spiral conveying rod 17 rotatably connected to the second conveying pipe 14, a plurality of filter holes 18 opened on the spiral conveying rod 17, and a support frame 13 fixedly connected to the second conveying pipe 14.

[0022] As shown in the figure, the regulating component includes a telescopic pipe 9 fixedly connected to the top of the separation chamber 1 and located on one side of the first delivery pipe 6. One end of the telescopic pipe 9 passes through the water inlet of the separation chamber 1 and the regulating chamber 11 and is fixedly connected. A valve 10 is fixedly connected to the telescopic pipe 9 for adjusting the position of the regulating chamber 11 so that it is located at the junction of oil and water separation.

[0023] As shown in the figure, the observation assembly includes an observation port 2 opened on one side of the separation chamber 1, and a tempered glass 3 is fixedly connected to the observation port 2 for observing the oil-water separation status in the separation chamber 1.

[0024] As shown in the figure, the feed inlet of the second conveying pipe 14 is fixedly connected to the feed pipe 15, and the discharge outlet of the second conveying pipe 14 is fixedly connected to the discharge pipe 16.

[0025] As shown in the figure, a geared motor 19 is fixedly connected to one end of the second conveying pipe 14. The output end of the geared motor 19 passes through the second conveying pipe 14 and is fixedly connected to one end of the screw conveying rod 17, which is used to provide power for the rotation of the screw conveying rod 17.

[0026] As shown in the figure, a control panel 4 is fixedly connected to one side of the separation chamber 1, and a PLC controller 5 is fixedly connected to one side of the separation chamber 1 and below the control panel 4. The PLC controller 5 and the control panel 4 are electrically connected and used to control the equipment on the device.

[0027] Working principle: When using the device, first check if the entire device is intact. After the check is completed, the operator starts the control panel 4 and controls the equipment on the device through the PLC controller 5. Then, the geared motor 19 is started, which drives the screw conveyor 17 to rotate. After that, the operator adds the wastewater to be separated into the second conveying pipe 14 through the feed pipe 15. The wastewater in the second conveying pipe 14 moves towards the separation chamber 1 through the filter holes 18 on the screw conveyor 17. The mud and sand particles in the wastewater move upward along the screw conveyor 17 and are discharged through the discharge pipe 16. The filtered wastewater enters the separation chamber 1 for sedimentation and separation. The operator observes the oil-water separation in the separation chamber 1 through the tempered glass 3. After the separation is completed, the valve 10 is opened, and the water volume is increased or decreased in the regulating chamber 11 through the telescopic pipe 9, so that the water suction pipe 12 on the telescopic hose 8 is located at the oil-water boundary. Then, the booster pump 7 is started to extract the oil through the water suction pipe 12, the telescopic hose 8 and the first conveying pipe 6.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A petroleum waste water oil-water separation device comprising a separation chamber (1), characterized in that: A first conveying pipe (6) is fixedly connected to the top of the separation chamber (1). A booster pump (7) is fixedly connected to the first conveying pipe (6). One end of the first conveying pipe (6) passes through the separation chamber (1) and is fixedly connected to a telescopic hose (8) inside the separation chamber (1). One end of the telescopic hose (8) is fixedly connected to an adjustment chamber (11). A water pumping pipe (12) is fixedly connected to the telescopic hose (8). An adjustment component is provided at the top of the separation chamber (1) and on one side of the first conveying pipe (6). An observation component is provided on one side of the separation chamber (1). A second conveying pipe (14) is fixedly connected to the feed inlet of the separation chamber (1). A spiral conveying rod (17) is rotatably connected to the second conveying pipe (14). Several filter holes (18) are opened on the spiral conveying rod (17). A support frame (13) is fixedly connected to the second conveying pipe (14).

2. A petroleum wastewater oil-water separation device according to claim 1, characterized in that: The regulating assembly includes a telescopic pipe (9) fixedly connected to the top of the separation chamber (1) and to one side of the first delivery pipe (6). One end of the telescopic pipe (9) passes through the inlet of the separation chamber (1) and the regulating chamber (11) and is fixedly connected to it. A valve (10) is fixedly connected to the telescopic pipe (9).

3. The oil-water separation device of claim 1, wherein: The observation assembly includes an observation port (2) opened on one side of the separation chamber (1), and a tempered glass (3) is fixedly connected to the observation port (2).

4. The oil-water separation device of claim 1, wherein: The feed inlet of the second conveying pipe (14) is fixedly connected to the feed pipe (15), and the discharge outlet of the second conveying pipe (14) is fixedly connected to the discharge pipe (16).

5. The oil-water separation device of claim 1, wherein: A reduction motor (19) is fixedly connected to one end of the second conveying pipe (14), and the output end of the reduction motor (19) passes through the second conveying pipe (14) and is fixedly connected to one end of the spiral conveying rod (17).

6. The oil-water separation device for petroleum wastewater according to claim 1, characterized in that: A control panel (4) is fixedly connected to one side of the separation chamber (1), and a PLC controller (5) is fixedly connected to one side of the separation chamber (1) and below the control panel (4). The PLC controller (5) and the control panel (4) are electrically connected.