Oil-water separation device

By combining the design of the guide plate and the inclined plate, and using the oleophilic and hydrophobic filter layer, the oil-water separation efficiency is improved, solving the problems of low separation efficiency and high maintenance costs, and realizing unattended operation.

CN224258326UActive Publication Date: 2026-05-19SHAOWU LUYIXIN ENVIRONMENTAL PROTECTION IND DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAOWU LUYIXIN ENVIRONMENTAL PROTECTION IND DEV CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing oil-water separation devices have low separation efficiency, inconvenient and costly filter replacement, and cannot achieve unattended operation.

Method used

It adopts a combination of guide plate and inclined plate design, uses a filter layer made of oleophilic and hydrophobic materials, and is equipped with a float valve automatic oil discharge device to realize the quick replacement of modular filter layers.

Benefits of technology

It has improved oil-water separation efficiency to over 90%, reduced maintenance costs, and enabled unattended operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an oil-water separation device which comprises a lower box body, a filter screen is installed on the inner side of a drawing box in a clamped mode, an inclined plate set is arranged below a flow guide plate, a filter layer is arranged below the inclined plate set, and a floating ball valve is fixedly installed at the right end of the inner side of the lower box body. The filter screen in the upper box body can be quickly replaced to play a role in filtering oil-water impurities, the guide plate is obliquely mounted below the liquid inlet to slow down water flow impact and guide oil drops to float upwards, the inclined plate group can accelerate collision and coalescence of the oil drops, the filter layer can adsorb residual oil stains and achieve oil-water separation, and the guide plate and the inclined plate group are combined to achieve the oil-water separation effect. The separation efficiency is improved to 90% or above compared with that of a traditional device by about 70%, the modular filter layer can be detached and replaced, and the maintenance cost is reduced; and the floating ball valve is linked with the oil discharge pipe, so that unattended operation is realized.
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Description

Technical Field

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

[0002] Oil-water mixtures are commonly generated in numerous industrial production processes and daily life, such as in oil extraction, machining, food processing, and restaurant wastewater treatment. If this oily wastewater is discharged directly without effective treatment, it will not only cause serious pollution to water resources but also waste precious water resources and trigger a series of environmental problems. Therefore, efficient and reliable oil-water separation technology is of great significance for environmental protection and resource recycling.

[0003] Currently, although oil-water separation devices on the market are constantly developing and improving, there are still some problems that need to be solved, such as the separation efficiency needing to be improved, the filter layer being inconvenient to replace and costly, frequent manual operation, and the inability to achieve unattended operation.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes an oil-water separation device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] An oil-water separator includes a lower housing, an upper housing fixedly installed on the upper part of the lower housing, a drawer box slidably connected to the inner side of the upper housing, a filter screen being snapped into the inner side of the drawer box, a guide plate fixedly connected to the upper inner side of the lower housing, an inclined plate assembly below the guide plate, a filter layer below the inclined plate assembly, and a float valve fixedly installed on the right inner side of the lower housing.

[0008] As a further embodiment of this utility model, an inlet pipe is fixedly connected to the outside of the upper housing, and the inlet pipe is connected to the upper housing.

[0009] As a further embodiment of this utility model, a viewing window is fixedly installed on the inner side of the front end of the lower housing.

[0010] As a further embodiment of this utility model, the guide plate is inclinedly disposed below the filter screen.

[0011] As a further embodiment of this utility model, the inclined plate group is composed of multiple parallel inclined plates, and the inclination angle of the inclined plates in the inclined plate group is °.

[0012] As a further embodiment of this utility model, the filter layer is made of an oleophilic and hydrophobic material, and the oleophilic and hydrophobic material of the filter layer is polypropylene fiber.

[0013] As a further embodiment of this utility model, an easy-to-remove disc is spirally connected to the inner side of the bottom end of the lower housing, and a drain pipe is fixedly installed at the bottom end of the easy-to-remove disc, with a solenoid valve installed on the drain pipe.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model features a lower housing, an upper housing, a filter screen, a guide plate, an inclined plate assembly, and a filter layer. The filter screen in the upper housing can be quickly replaced to filter oil and water impurities. The guide plate is installed at an angle below the liquid inlet to reduce the impact of water flow and guide oil droplets to float. The inclined plate assembly can accelerate the collision and aggregation of oil droplets. The filter layer can adsorb residual oil and achieve oil-water separation. The combined design of the guide plate and inclined plate assembly improves the separation efficiency to over 90%, compared to about 70% for traditional devices. The modular filter layer is removable and replaceable, reducing maintenance costs. The float valve is linked to the oil drain pipe, enabling unattended operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of an oil-water separation device according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the mounting base of an oil-water separator and a charging pile according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the worm gear, worm shaft, and solid foundation of an oil-water separation device according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the positioning rod of an oil-water separator according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the threaded rod and worm gear of an oil-water separation device according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Lower housing; 2. Upper housing; 3. Liquid inlet pipe; 4. Easy-to-remove tray; 5. Drain pipe; 6. Solenoid valve; 7. Drawer box; 8. Filter screen; 9. Flow guide plate; 10. Inclined plate assembly; 11. Float valve; 12. Filter layer; 13. Viewing window. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, an oil-water separation device is provided.

[0026] Please refer to the instruction manual appendix. Figure 1-5 According to an embodiment of the present invention, an oil-water separation device includes a lower housing 1, an upper housing 2 fixedly installed on the upper part of the lower housing 1, a drawer 7 slidably connected to the inner side of the upper housing 2, a filter screen 8 snapped onto the inner side of the drawer 7, a guide plate 9 fixedly connected to the upper inner side of the lower housing 1, an inclined plate assembly 10 provided below the guide plate 9, a filter layer 12 provided below the inclined plate assembly 10, and a float valve 11 fixedly installed on the right inner side of the lower housing 1.

[0027] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, an inlet pipe 3 is fixedly connected to the outer side of the upper housing 2, and the inlet pipe 3 is connected to the upper housing 2.

[0028] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a viewing window 13 is fixedly installed on the inner side of the front end of the lower housing 1.

[0029] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, the guide plate 9 is inclinedly disposed below the filter screen 8.

[0030] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, the inclined plate group 10 is composed of multiple layers of parallel inclined plates, and the inclination angle of the inclined plates in the inclined plate group 10 is 45°.

[0031] In one embodiment, please refer to the appendix to the specification. Figure 1-5As a further embodiment of this utility model, the filter layer 12 is made of an oleophilic and hydrophobic material, and the oleophilic and hydrophobic material of the filter layer 12 is polypropylene fiber.

[0032] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, an easy-to-remove disc 4 is spirally connected to the inner side of the bottom end of the lower housing 1, a drain pipe 5 is fixedly installed at the bottom end of the easy-to-remove disc 4, and a solenoid valve 6 is installed on the drain pipe 5.

[0033] Structural design

[0034] The tank is equipped with a water inlet pipe at the top, a drain pipe at the bottom, and an oil collection tank in the middle.

[0035] Deflector plate: Installed at an angle below the water inlet to reduce the impact of water flow and guide oil droplets to float upward.

[0036] Inclined plate group: Multiple parallel inclined plates, spaced 5-10cm apart, with an inclination angle of 45°-60°, to accelerate oil droplet collision and coalescence.

[0037] Filter layer: Located below the inclined plate assembly, it uses oleophilic and hydrophobic materials (such as polypropylene fibers) to adsorb residual oil stains.

[0038] Automatic oil draining device: The oil collection tank is equipped with a float valve, which automatically opens to drain oil when the oil layer thickness reaches the set value.

[0039] Innovation

[0040] The combination of guide vanes and inclined plates improves separation efficiency to over 90% (compared to approximately 70% for traditional devices). Modular filter layers are removable and replaceable, reducing maintenance costs. A float valve linked to the drain pipe enables unattended operation.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An oil-water separation device comprising a lower tank (1), characterised in that: An upper box (2) is fixedly installed on the upper part of the lower box (1). A drawer (7) is slidably connected to the inner side of the upper box (2). A filter screen (8) is snapped into the inner side of the drawer (7). A guide plate (9) is fixedly connected to the upper inner side of the lower box (1). An inclined plate group (10) is provided below the guide plate (9). A filter layer (12) is provided below the inclined plate group (10). A float valve (11) is fixedly installed on the right inner side of the lower box (1).

2. An oil-water separation device according to claim 1, characterized in that: An inlet pipe (3) is fixedly connected to the outside of the upper box (2), and the inlet pipe (3) is connected to the upper box (2).

3. The oil-water separation device of claim 1, wherein: A viewing window (13) is fixedly installed on the inner front side of the lower housing (1).

4. The oil-water separation device of claim 1, wherein: The guide plate (9) is inclined and positioned below the filter screen (8).

5. The oil-water separation device of claim 1, wherein: The inclined plate group (10) is composed of multiple parallel inclined plates, and the inclined plate in the inclined plate group (10) has an inclination angle of 45°.

6. The oil-water separation device of claim 1, wherein: The filter layer (12) is made of an oleophilic and hydrophobic material, which is polypropylene fiber.

7. The oil-water separation device of claim 1, wherein: The bottom inner side of the lower box (1) is spirally connected to an easy-to-remove plate (4), and a drain pipe (5) is fixedly installed at the bottom of the easy-to-remove plate (4). A solenoid valve (6) is installed on the drain pipe (5).