Oil-water separation device

By designing an oil-water separation device including a material storage box, an oil-water interface induction assembly, an oil-suction head and a water-sucking head, the oil-water mixing problem in the prior art is solved and the efficient oil-water separation effect is achieved.

CN222922944UActive Publication Date: 2025-05-30SHAOXING SHANGYU XINYINBANG BIOCHEMICAL CO LTD
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Patent Information

Application Number
CN202421608629.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-09
Publication Date
2025-05-30
Estimated Expiration
2034-07-09

AI Technical Summary

Technical Problem

The existing oil-water separation technology is difficult to effectively remove the organic layer, resulting in oil-water mixing, increasing the loss of organic solvents and the difficulty of wastewater disposal.

Method used

An oil-water separation device is designed, using components such as material storage box, oil-water interface induction assembly, oil-suction head and water-sucking head. By controlling the height of the oil-sucking head and water-sucking head, the oil-and-water separation box is further separated.

Benefits of technology

It effectively improves the efficiency of oil-water separation, avoids the situation where oil-water is difficult to separate when oil-water is mixed, and reduces the cost of wastewater disposal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of chemical equipment, in particular to an oil-water separation device which comprises a material storage box, an oil-water interface sensing assembly is arranged in the material storage box, the side wall of the material storage box is communicated with a feeding pipeline, the feeding pipeline is located below a storage box interface of the material storage box, and a first lifting assembly is arranged on the top face of the inner wall of the material storage box. The movable end of the first lifting assembly is connected with an oil suction head, the oil suction head communicates with the upper portion of the side wall of the secondary separation box, a second lifting assembly is arranged on the bottom face of the inner wall of the material storage box, the movable end of the second lifting assembly is connected with a water suction head, the water suction head communicates with the lower portion of the side wall of the secondary separation box, and an oil-water interface height sensing assembly is arranged in the secondary separation box. The bottom end of the side wall of the secondary separation box is communicated with a water outlet pipeline, the bottom of the side wall of the secondary separation box is communicated with an oil outlet pipeline, the oil outlet pipeline is located above the water outlet pipeline, and the oil-water separation efficiency can be effectively improved.
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Description

Technical Field

[0001] The utility model relates to the field of chemical equipment, in particular to an oil-water separation device. Background Art

[0002] Residential areas, restaurants, hotels or canteens often generate a large amount of oily wastewater. If the wastewater in the sewage tank cannot be treated in a timely and effective manner, it will bring many hazards, easily cause environmental pollution. At the same time, due to the waste oil not being recycled, it causes huge energy waste. Therefore, it is particularly important to separate the oil and water in the wastewater.

[0003] When separating oil and water, always a small amount of the organic layer is entrained into the water layer and separated away, which not only increases the loss of organic solvents, but also takes away the product, resulting in low yield. At the same time, it increases the COD of the water layer, increasing the difficulty and cost of wastewater disposal.

[0004] Therefore, an oil-water separation device is provided to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an oil-water separation device to solve the above problems, which can effectively improve the efficiency of oil-water separation.

[0006] To achieve the above purpose, the utility model provides the following scheme:

[0007] An oil-water separation device includes a material storage tank, in which an oil-water interface sensing component is arranged. A feed pipeline is communicated with the side wall of the material storage tank, and the feed pipeline is located below the storage tank interface of the material storage tank. The top surface of the inner wall of the material storage tank is provided with a first lifting component, and the movable end of the first lifting component is connected with an oil suction head, and the oil suction head is communicated with the upper part of the side wall of a secondary separation tank. The bottom surface of the inner wall of the material storage tank is provided with a second lifting component, and the movable end of the second lifting component is connected with a water suction head, and the water suction head is communicated with the lower part of the side wall of the secondary separation tank. An oil-water interface height sensing component is arranged in the secondary separation tank. A water outlet pipeline is communicated with the bottom end of the side wall of the secondary separation tank, and an oil outlet pipeline is communicated with the bottom of the side wall of the secondary separation tank. The oil outlet pipeline is located above the water outlet pipeline. The oil-water interface sensing component, the first lifting component, the second lifting component, and the oil-water interface height sensing component are electrically connected to a controller.

[0008] Preferably, the oil-water interface induction component includes a first reflective optoelectronic sensor and a second reflective optoelectronic sensor. The first reflective optoelectronic sensor is fixedly connected to the top surface of the material storage tank, and the second reflective optoelectronic sensor is fixedly connected to the bottom surface of the material storage tank. The optical paths of the first reflective optoelectronic sensor and the second reflective optoelectronic sensor are not collinear, and the first reflective optoelectronic sensor and the second reflective optoelectronic sensor are electrically connected to the controller.

[0009] Preferably, the first lifting component includes a first sliding rod. The top end of the first sliding rod is fixedly connected to the top surface of the material storage tank. The first sliding rod is vertically arranged. One end of a first lead screw is rotatably connected to the top surface of the material storage tank. The first lead screw is parallel to the first sliding rod. The first lead screw is threadedly connected to a first slider. The oil suction head is fixedly connected to the first slider. The top end of the first lead screw passes through the top surface of the material storage tank and is axially connected to the output shaft of a first motor. The first motor is fixedly connected to the material storage tank, and the first motor is electrically connected to the controller.

[0010] Preferably, the second lifting component includes a second sliding rod. The bottom end of the second sliding rod is fixedly connected to the bottom surface of the material storage tank. The second sliding rod is vertically arranged. One end of a second lead screw is rotatably connected to the bottom surface of the material storage tank. The second lead screw is parallel to the second sliding rod. The second lead screw is threadedly connected to a second slider. The water suction head is fixedly connected to the second slider. The bottom end of the second lead screw passes through the bottom surface of the material storage tank and is axially connected to the output shaft of a second motor. The second motor is fixedly connected to the material storage tank, and the second motor is electrically connected to the controller.

[0011] Preferably, the oil-water interface height induction component includes a float. The float includes a plurality of first reflective gratings and a plurality of second reflective gratings. The first reflective gratings and the second reflective gratings are arranged alternately. The reflective intensities of the plurality of first reflective gratings and second reflective gratings increase sequentially from bottom to top. A counterweight is fixedly connected to the first reflective grating or the second reflective grating at the lowermost position. The weight of the counterweight is greater than the total weight of the plurality of first reflective gratings and second reflective gratings. The average density of the counterweight, the first reflective gratings, and the second reflective gratings is between that of oil and water. The first reflective grating or the second reflective grating in the middle corresponds to the secondary separation boundary surface in the secondary separation tank;

[0012] A third reflective optoelectronic sensor is installed on the side wall of the secondary separation tank, and the third reflective optoelectronic sensor is electrically connected to the controller.

[0013] Preferably, one end of the liquid outlet of the water suction head is communicated with one end of a second flexible pipe, the other end of the second flexible pipe is communicated with one end of a water delivery pipeline, the other end of the water delivery pipeline is communicated with the lower part of the side wall of the secondary separation tank, the connection part of the water delivery pipeline and the secondary separation tank is located below the interface of the storage tank, and a first electromagnetic valve and a first pump body are arranged on the water delivery pipeline and are electrically connected with the controller.

[0014] Preferably, one end of the liquid outlet of the oil suction head is communicated with one end of a first flexible pipe, the other end of the first flexible pipe is communicated with one end of an oil delivery pipeline, the other end of the oil delivery pipeline is communicated with the upper part of the side wall of the secondary separation tank, the connection part of the oil delivery pipeline and the secondary separation tank is located above the secondary separation interface and below the liquid level of the secondary separated oil in the secondary separation tank, and a second electromagnetic valve and a second pump body are arranged on the oil delivery pipeline, and the second electromagnetic valve and the second pump body are electrically connected with the controller.

[0015] The utility model has the following technical effects:

[0016] Since there is a mixing phenomenon at the interface of the oil-water mixture initially fed into the material storage tank through the feeding pipeline, the oil-water interface height sensing assembly detects the height of the interface of the storage tank. The height of the oil suction head can be controlled by the first lifting assembly to ensure that the liquid sent out is oil, and the height of the water suction head can be controlled by the second lifting assembly to ensure that the liquid sent out is water, and the two are injected into the secondary separation tank. Since the water suction head is communicated with the lower part of the side wall of the secondary separation tank and the oil suction head is communicated with the upper part of the side wall of the secondary separation tank, it is ensured that the oil suction head is above the oil-water interface. At this time, the oil and water entering the secondary separation tank can be clearly demarcated, and then the water is discharged through the water outlet pipeline. When the water is discharged to a predetermined height, the oil is discharged through the oil outlet pipeline. By repeating this process, the situation where the oil is not easily separated when the oil-water mixed liquid is doped can be avoided, and the efficiency of oil-water separation is enhanced. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Among them, 1. Material storage box; 101. First reflective photoelectric sensor; 102. Second reflective photoelectric sensor; 2. Oil suction head; 201. First slide bar; 202. First lead screw; 203. First motor; 204. First slider; 205. First flexible pipe; 3. Water suction head; 301. Second slide bar; 302. Second lead screw; 303. Second motor; 304. Second slider; 305. Second flexible pipe; 4. Water delivery pipeline; 401. First solenoid valve; 402. First pump body; 5. Oil delivery pipeline; 501. Second solenoid valve; 502. Second pump body; 6. Feed pipeline; 601. Feed pump; 7. Secondary separation box; 701. Third reflective photoelectric sensor; 8. Float; 801. First reflective grating; 802. Second reflective grating; 803. Counterweight; 9. Outlet water pipeline; 901. Outlet water valve; 10. Oil level in the storage box; 11. Interface in the storage box; 12. Oil level in the secondary separation; 13. Interface in the secondary separation; 14. Oil outlet pipeline; 1401. Oil outlet valve. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes.

[0022] Referring to Figure 1 As shown, this embodiment provides an oil-water separation device, including a material storage box 1. An oil-water interface induction component is arranged in the material storage box 1. A feed pipeline 6 is communicated with the side wall of the material storage box 1. The feed pipeline 6 is located below the interface 11 in the storage box of the material storage box 1. The top surface of the inner wall of the material storage box 1 is provided with a first lifting component. The movable end of the first lifting component is connected with an oil suction head 2. The oil suction head 2 is communicated with the upper part of the side wall of the secondary separation box 7. The bottom surface of the inner wall of the material storage box 1 is provided with a second lifting component. The movable end of the second lifting component is connected with a water suction head 3. The water suction head 3 is communicated with the lower part of the side wall of the secondary separation box 7. An oil-water interface height induction component is arranged in the secondary separation box 7. A water outlet pipeline 9 is communicated with the bottom end of the side wall of the secondary separation box 7. An oil outlet pipeline 14 is communicated with the bottom of the side wall of the secondary separation box 7. The oil outlet pipeline 14 is located above the water outlet pipeline 9. The oil-water interface induction component, the first lifting component, the second lifting component, and the oil-water interface height induction component are electrically connected to a controller.

[0023] Due to the mixing phenomenon at the interface of the oil-water mixture initially fed into the material storage tank 1 through the feed pipeline 6, the oil-water interface height sensing component detects the height of the interface 11 of the storage tank. The height of the oil suction head 2 can be controlled through the first lifting component to ensure that the liquid it delivers is oil. The height of the water suction head 3 can be controlled through the second lifting component to ensure that the liquid it delivers is water, and both are injected into the secondary separation tank 7. Since the water suction head 3 is connected to the lower part of the side wall of the secondary separation tank 7, and the oil suction head 2 is connected to the upper part of the side wall of the secondary separation tank 7, it is ensured that the oil suction head 2 is above the oil-water interface. At this time, the oil and water entering the secondary separation tank 7 can be clearly demarcated. Then, the water is discharged through the water outlet pipeline 9. When the water is discharged to a predetermined height, the oil is discharged through the oil outlet pipeline 14. By repeating this process, the situation where it is difficult to separate the oil when the oil-water mixed liquid is doped can be avoided, and the efficiency of oil-water separation is enhanced.

[0024] In a further optimized solution, the oil-water interface sensing component includes a first reflection photoelectric sensor 101 and a second reflection photoelectric sensor 102. The first reflection photoelectric sensor 101 is fixedly connected to the top surface of the material storage tank 1, and the second reflection photoelectric sensor 102 is fixedly connected to the bottom surface of the material storage tank 1. The optical paths of the first reflection photoelectric sensor 101 and the second reflection photoelectric sensor 102 are not collinear, and the first reflection photoelectric sensor 101 and the second reflection photoelectric sensor 102 are electrically connected to the controller.

[0025] The first reflection photoelectric sensor 101 is used to detect the height of the oil liquid level 10 in the storage tank and transmit the signal to the controller. The controller controls the operation of the first lifting component, and then drives the oil suction head 2 to move up and down to ensure that the liquid sucked by the oil suction head 2 is oil. The second reflection photoelectric sensor 102 is used to detect the height of the interface 11 of the storage tank and transmit the signal to the controller to control the operation of the second lifting component, and then drives the water suction head 3 to move up and down to ensure that the liquid sucked by the water suction head 3 is water.

[0026] In a further optimized solution, the first lifting component includes a first sliding rod 201. The top end of the first sliding rod 201 is fixedly connected to the top surface of the material storage tank 1. The first sliding rod 201 is vertically arranged. One end of a first lead screw 202 is rotatably connected to the top surface of the material storage tank 1. The first lead screw 202 is parallel to the first sliding rod 201. The first lead screw 202 is threadedly connected to a first slider 204. The oil suction head 2 is fixedly connected to the first slider 204. The top end of the first lead screw 202 passes through the top surface of the material storage tank 1 and is axially connected to the output shaft of a first motor 203. The first motor 203 is fixedly connected to the material storage tank 1, and the first motor 203 is electrically connected to the controller.

[0027] The controller controls the rotation of the first motor 203. The first motor 203 drives the rotation of the first lead screw 202. The first lead screw 202 drives the first slider 204 to move up and down along the first slide bar 201, thereby realizing the control of the height of the oil suction head 2.

[0028] In a further optimized solution, the second lifting assembly includes a second slide bar 301. The bottom end of the second slide bar 301 is fixedly connected to the bottom surface of the material storage tank 1. The second slide bar 301 is vertically arranged. One end of a second lead screw 302 is rotatably connected to the bottom surface of the material storage tank 1. The second lead screw 302 is parallel to the second slide bar 301. A second slider 304 is threadedly connected to the second lead screw 302. The water suction head 3 is fixedly connected to the second slider 304. The bottom end of the second lead screw 302 passes through the bottom surface of the material storage tank 1 and is axially connected to the output shaft of a second motor 303. The second motor 303 is fixedly connected to the material storage tank 1. The second motor 303 is electrically connected to the controller.

[0029] The controller controls the rotation of the second motor 303. The second motor 303 drives the rotation of the second lead screw 302. The second lead screw 302 drives the second slider 304 to move up and down along the second slide bar 301, thereby realizing the control of the height of the water suction head 3.

[0030] In a further optimized solution, the oil-water interface height sensing assembly includes a float 8. The float 8 includes a plurality of first reflective gratings 801 and a plurality of second reflective gratings 802. The first reflective gratings 801 and the second reflective gratings 802 are arranged alternately. The reflective intensities of the plurality of first reflective gratings 801 and the second reflective gratings 802 increase sequentially from bottom to top. A counterweight 803 is fixedly connected to the first reflective grating 801 or the second reflective grating 802 located at the bottommost. The weight of the counterweight 803 is greater than the total weight of the plurality of first reflective gratings 801 and the second reflective gratings 802. The average density of the counterweight 803, the first reflective gratings 801, and the second reflective gratings 802 is between that of oil and water. The first reflective grating 801 or the second reflective grating 802 located in the middle corresponds to the secondary separation interface 13 in the secondary separation tank 7.

[0031] A third reflective photoelectric sensor 701 is installed on the side wall of the secondary separation tank 7. The third reflective photoelectric sensor 701 is electrically connected to the controller.

[0032] The third reflective photoelectric sensor 701 emits an optical signal onto the first reflective grating 801 and the second reflective grating 802. Due to the different reflective intensity settings of the first reflective grating 801 and the second reflective grating 802, the height of the secondary separation interface 13 can be determined. When the water level is low, water is injected into the secondary separation tank 7 through the water suction head 3 to maintain the height of the secondary separation interface 13. After running for a predetermined time, it can be determined that the oil level reaches the set requirement. At this time, the water is discharged through the water outlet pipeline 9, and the height of the secondary separation interface 13 is detected by the third reflective photoelectric sensor 701 to determine whether the height of the secondary separation interface 13 is lower than the height of the oil outlet pipeline 14 to prevent the oil from being discharged. When the secondary separation interface 13 reaches the set value, the oil is discharged through the oil outlet pipeline 14. Then, water is injected into the secondary separation tank 7 through the water suction head 3, and at the same time, the third reflective photoelectric sensor 701 detects the height of the secondary separation interface 13 to ensure that it does not exceed the connection between the water suction head 3 and the secondary separation tank 7, thereby ensuring the stability of the secondary separation interface 13 in the secondary separation tank 7.

[0033] In a further optimized solution, one end of a second flexible pipe 305 is connected to the liquid outlet end of the water suction head 3, the other end of the second flexible pipe 305 is connected to one end of a water delivery pipeline 4, the other end of the water delivery pipeline 4 is connected to the lower part of the side wall of the secondary separation tank 7, the connection between the water delivery pipeline 4 and the secondary separation tank 7 is located below the storage tank interface 11, and a first electromagnetic valve 401 and a first pump body 402 are provided on the water delivery pipeline 4 and are electrically connected to the controller.

[0034] By controlling the operation of the first electromagnetic valve 401 and the first pump body 402 through the controller, the rate of water entering the secondary separation tank 7 can be controlled to ensure the stability of oil-water separation.

[0035] In a further optimized solution, one end of a first flexible pipe 205 is connected to the liquid outlet end of the oil suction head 2, the other end of the first flexible pipe 205 is connected to one end of an oil delivery pipeline 5, the other end of the oil delivery pipeline 5 is connected to the upper part of the side wall of the secondary separation tank 7, the connection between the oil delivery pipeline 5 and the secondary separation tank 7 is located above the secondary separation interface 13 and below the secondary separation oil liquid level 12 in the secondary separation tank 7, and a second electromagnetic valve 501 and a second pump body 502 are provided on the oil delivery pipeline 5, and the second electromagnetic valve 501 and the second pump body 502 are electrically connected to the controller.

[0036] By controlling the operation of the second electromagnetic valve 501 and the second pump body 502 through the controller, the speed of oil entering the secondary separation tank 7 can be controlled to ensure the stability of oil-water separation.

[0037] In this embodiment, the controller can use a PLC or a PC terminal to control each component. Its control method and connection method are prior arts and will not be elaborated here.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0039] The embodiments described above are only for describing the preferred mode of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present utility model should all fall within the protection scope determined by the claims of the present utility model.

Claims

1. An oil-water separation device, characterized in that: The invention comprises a material storage box (1), wherein an oil-water interface sensing component is arranged in the material storage box (1), a feed pipeline (6) is connected to the side wall of the material storage box (1), and the feed pipeline (6) is located below the storage box interface (11) of the material storage box (1), a first lifting component is arranged on the top surface of the inner wall of the material storage box (1), and an oil suction head (2) is connected to the movable end of the first lifting component, and the oil suction head (2) is connected to the upper part of the side wall of the secondary separation box (7), and a second lifting component is arranged on the bottom surface of the inner wall of the material storage box (1), and the second lifting component is arranged on the bottom surface of the inner wall of the material storage box (1), and the second lifting component is arranged on the bottom surface of the inner wall of the material storage box (1). The movable end of the lifting component is connected to a water suction head (3), the water suction head (3) is connected to the lower part of the side wall of the secondary separation box (7), an oil-water interface height sensing component is arranged in the secondary separation box (7), the bottom end of the side wall of the secondary separation box (7) is connected to a water outlet pipeline (9), the bottom end of the side wall of the secondary separation box (7) is connected to an oil outlet pipeline (14), the oil outlet pipeline (14) is located above the water outlet pipeline (9), and the oil-water interface sensing component, the first lifting component, the second lifting component, and the oil-water interface height sensing component are electrically connected to a controller.

2. The oil-water separation device according to claim 1, characterized in that: The oil-water interface sensing component comprises a first reflective photoelectric sensor (101) and a second reflective photoelectric sensor (102); the first reflective photoelectric sensor (101) is fixedly connected to the top surface of the material storage box (1); the second reflective photoelectric sensor (102) is fixedly connected to the bottom surface of the material storage box (1); the optical paths of the first reflective photoelectric sensor (101) and the second reflective photoelectric sensor (102) are not collinear; and the first reflective photoelectric sensor (101) and the second reflective photoelectric sensor (102) are electrically connected to the controller.

3. The oil-water separation device according to claim 1, characterized in that: The first lifting assembly includes a first sliding rod (201), the top end of the first sliding rod (201) is fixedly connected to the top surface of the material storage box (1), the first sliding rod (201) is vertically arranged, and the top surface of the material storage box (1) is rotatably connected to one end of a first lead screw (202), the first lead screw (202) is parallel to the first sliding rod (201), the first lead screw (202) is threadedly connected to a first slider (204), the oil suction head (2) is fixedly connected to the first slider (204), the top end of the first lead screw (202) passes through the top surface of the material storage box (1) and is connected to the output shaft of a first motor (203), the first motor (203) is fixedly connected to the material storage box (1), and the first motor (203) is electrically connected to the controller.

4. The oil-water separation device according to claim 1, characterized in that: The second lifting assembly includes a second sliding rod (301), the bottom end of the second sliding rod (301) is fixedly connected to the bottom surface of the material storage box (1), the second sliding rod (301) is vertically arranged, and the bottom surface of the material storage box (1) is rotatably connected to one end of a second lead screw (302), the second lead screw (302) is parallel to the second sliding rod (301), the second lead screw (302) is threadedly connected to a second slider (304), the water suction head (3) is fixedly connected to the second slider (304), the bottom end of the second lead screw (302) passes through the bottom surface of the material storage box (1) and is connected to the output shaft of the second motor (303), the second motor (303) is fixedly connected to the material storage box (1), and the second motor (303) is electrically connected to the controller.

5. The oil-water separation device according to claim 1, characterized in that: The oil-water interface height sensing component comprises a float (8), the float (8) comprises a plurality of first reflective gratings (801) and a plurality of second reflective gratings (802), the first reflective gratings (801) and the second reflective gratings (802) are arranged in a staggered manner, the reflective intensity of the plurality of first reflective gratings (801) and the second reflective gratings (802) increases from bottom to top, the first reflective grating (801) or the second reflective grating (802) located at the bottom is fixedly connected to a counterweight (803), the weight of the counterweight (803) is greater than the total weight of the plurality of first reflective gratings (801) and the second reflective gratings (802), the average density of the counterweight (803), the first reflective grating (801) and the second reflective grating (802) is between that of oil and water, and the first reflective grating (801) or the second reflective grating (802) located in the middle corresponds to the secondary separation interface (13) in the secondary separation box (7); A third reflective photoelectric sensor (701) is installed on the side wall of the secondary separation box (7), and the third reflective photoelectric sensor (701) is electrically connected to the controller.

6. The oil-water separation device according to claim 1, characterized in that: The liquid outlet end of the water suction head (3) is connected to one end of a second flexible tube (305), the other end of the second flexible tube (305) is connected to one end of a water supply pipeline (4), the other end of the water supply pipeline (4) is connected to the lower part of the side wall of the secondary separation box (7), the connection between the water supply pipeline (4) and the secondary separation box (7) is located below the interface (11) of the storage box, and the water supply pipeline (4) is provided with a first solenoid valve (401), a first pump body (402) and electrically connected to the controller.

7. The oil-water separation device according to claim 5, characterized in that: The liquid outlet end of the oil suction head (2) is connected to one end of a first flexible tube (205), the other end of the first flexible tube (205) is connected to one end of an oil delivery pipeline (5), the other end of the oil delivery pipeline (5) is connected to the upper part of the side wall of the secondary separation box (7), the connection between the oil delivery pipeline (5) and the secondary separation box (7) is located above the secondary separation interface (13) and below the secondary separation oil level (12) in the secondary separation box (7), the oil delivery pipeline (5) is provided with a second solenoid valve (501) and a second pump body (502), and the second solenoid valve (501) and the second pump body (502) are electrically connected to the controller.

8. The oil-water separation device according to claim 1, characterized in that: The water outlet pipeline (9) is provided with a water outlet valve (901), the oil outlet pipeline (14) is provided with an oil outlet valve (1401), and the feed pipeline (6) is provided with a feed pump (601). The water outlet valve (901), the oil outlet valve (1401), and the feed pump (601) are electrically connected to the controller.