A marine oil slick separating device and a method of separating

Abstract

This invention relates to a marine oil spill separation device and method. The device includes a workbench, an oil content detector, a first water pump, a primary separation mechanism, a second water pump, a secondary separation mechanism, a water box, and an oil box. A support and an ultrasonic ranging module are mounted on the workbench. The primary separation mechanism is located below the ultrasonic ranging module. The first water pump is connected to the primary separation mechanism. The oil content detector is located inside the primary separation mechanism. The second water pump is also connected to the primary separation mechanism. The oil outlet and water outlet of the secondary separation mechanism are connected to the oil box and water box, respectively. By first performing preliminary oil-water separation, the oil content detector monitors the oil content of the initially separated oil-water mixture in real time. Once the oil content reaches a certain level, the oil and oil-water mixture obtained from the secondary separation are discharged into the oil box and water box, respectively. This achieves the separation of oil and water in the oil-water mixture, ensuring the efficiency and controllability of the separation process, and reducing separation costs and pollution.

Description

Technical Field

[0001] This invention relates to the fields of machinery and automatic control, and more particularly to a marine oil spill separation device and its separation method. Background Technology

[0002] According to surveys, the global total oil reserves are approximately 300 billion tons, with an estimated 100 billion tons located offshore. With the development of human society and the industrial age, the utilization of oil and gas resources has been increasing at a rapid pace, making the exploitation and utilization of offshore oil resources an essential choice for sustainable development. In recent years, accidents during offshore oil extraction and transportation, as well as maritime military activities, have caused oil pollution in the ocean from various sources. This has further reduced oil utilization rates, resulting in significant economic losses. Simultaneously, when oil spills into seawater, the organic compounds such as alkanes and aromatics, as well as inorganic compounds such as nickel and vanadium, directly pollute the seawater. Because oil has a low density, it floats on the surface, reducing ocean oxygen levels and leading to oxygen deficiency for marine life. Marine organisms ingest oil, causing ecological damage, and the accumulation of toxins ultimately harms human health through the food chain. Therefore, humans are actively seeking methods for oil-water separation and oil recovery.

[0003] Currently, domestic and international research on oil-water separation methods mainly includes gravity separation, air flotation, coarse particle separation, filtration, adsorption, and ultrasonic methods. However, these methods suffer from drawbacks such as failing to meet the requirements of marine operating environments, low separation efficiency, complex operation of separation devices, high energy consumption, and even the potential for new pollution hazards. Therefore, developing an efficient, convenient, simple, environmentally friendly, and practical marine oil-water separation method is an urgent problem to be solved in the recovery of marine oil substances. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a marine oil spill separation device and separation method that address the shortcomings of the prior art.

[0005] The technical solution of this invention to solve the above-mentioned technical problems is as follows: A marine oil spill separation device includes a hollow workbench, an oil content detector, a first water pump, a primary separation mechanism, a second water pump, a secondary separation mechanism, a water box, and an oil box. A support is provided on the workbench, and an ultrasonic ranging module is mounted on the support. The primary separation mechanism is located on the workbench and below the ultrasonic ranging module. The first water pump is connected to the primary separation mechanism and delivers an oil-water mixture to it. The oil content detector is located inside the primary separation mechanism and detects the oil content of the oil-water mixture within it. The second water pump is connected to the primary separation mechanism and discharges the oil-water mixture that has been separated and meets the standards by the primary separation mechanism into the secondary separation mechanism. The secondary separation mechanism is located inside the workbench and below the primary separation mechanism to perform secondary separation of the oil-water mixture discharged from the primary separation mechanism. The oil outlet of the secondary separation mechanism is connected to the oil box, and the water outlet of the secondary separation mechanism is connected to the water box.

[0006] The beneficial effects of this invention are as follows: The marine oil spill separation device of this invention achieves preliminary oil-water separation through a primary separation mechanism with selective wetting. After separation, the oily substances are directly discharged into the oil box. The oil content detector monitors the oil content of the oil-water mixture after preliminary separation in the primary separation mechanism in real time, monitors the separation status in real time, and discharges it into the secondary separation mechanism for secondary separation after the oil content reaches the standard. The oily substances after secondary separation and the remaining oil-water mixture are directly discharged into the oil box and water box respectively, realizing the separation of oily substances and water in the oil-water mixture, ensuring the high efficiency and controllability of the separation process, reducing separation costs and separation pollution, and having a simple separation principle and convenient operation.

[0007] Based on the above technical solution, the present invention can be further improved as follows:

[0008] Further: The primary separation mechanism includes a first oil-water separation box, which is disposed on the workbench and located below the ultrasonic ranging module. The upper part of the four side walls of the first oil-water separation box is provided with a first porous oil-water separation plate for selective wetting. The bottom of the outer side wall of the first oil-water separation box is surrounded by a first oil guide groove and a first oil outlet communicating with the first oil guide groove. The bottom of the first oil-water separation box is provided with a first drain outlet. The inlet of the second water pump is connected to the first drain outlet through a first drain pipe. A first solenoid valve is provided on the first drain pipe.

[0009] The beneficial effects of the above-mentioned further solution are as follows: by setting a first porous oil-water separation plate on the four sides of the first oil-water separation box, the oily substances in the oil-water mixture entering the first oil-water separation box can be initially separated and discharged to the oil box through the first oil guide groove and the first oil outlet. Simultaneously, the oil content detector dynamically monitors the remaining oil-water mixture in the first oil-water separation box in real time to ensure the oil content of the oil-water mixture entering the secondary separation mechanism after the initial separation. The first solenoid valve controls the channel entering the secondary separation mechanism to ensure the effect of the two-stage separation.

[0010] Furthermore, the primary separation mechanism also includes a water inlet pipe, which is connected to the first oil-water separation box, and a second solenoid valve is provided on the water inlet pipe for controlling the liquid level in the first oil-water separation box.

[0011] The beneficial effect of the above-mentioned further solution is that by setting a second solenoid valve on the water inlet pipe, the flow rate of the oil-water mixture entering the first oil-water separator can be controlled in real time according to the liquid level in the first oil-water separator detected by the ultrasonic ranging module, thereby ensuring that the liquid level in the first oil-water separator is at a suitable level.

[0012] Furthermore: there are multiple first oil-water separator boxes, and the number of ultrasonic ranging modules is equal to the number of first oil-water separator boxes and they are set one-to-one. The first oil drain port is located at the corner near the center of the workbench. A through hole is provided at the center of the workbench, and multiple first oil drain ports are connected to the oil boxes.

[0013] The beneficial effect of the above-mentioned further solution is that by setting up multiple first oil-water separation boxes, the separation efficiency can be increased several times.

[0014] Further: The secondary separation mechanism includes a second oil-water separation box, which is disposed inside the workbench. The upper part of the four sides of the second oil-water separation box is provided with a second porous oil-water separation plate for selective wetting. The bottom of the outer side wall of the second oil-water separation box is surrounded by a second oil guide groove and a second oil outlet communicating with the second oil guide groove. The bottom of the second oil-water separation box is provided with a second drain outlet, which communicates with the oil box and the water box. By setting the second oil-water separation box and the second porous oil-water separation plate thereon, the oil-water mixture discharged from the first drain outlet of the first oil-water separation box is subjected to secondary separation.

[0015] The beneficial effects of the above-mentioned further solution are: by setting the second oil-water separation box and the second porous oil-water separation plate thereon, the oil-water mixture discharged from the first drain outlet of the first oil-water separation box can be separated for a second time, ensuring that the oil content of the oil-water mixture after the second separation significantly meets the set standard, thereby improving the separation quality. By directly discharging the oily substances after the second separation into the oil box for collection, secondary pollution can be avoided.

[0016] Furthermore: there are multiple water boxes, and a reversing valve is installed on the pipeline connecting the second water pump and the first-stage separation mechanism. When the liquid level in one of the water boxes exceeds a preset threshold, the second drain outlet of the second-stage separation mechanism discharges the oil-water mixture that has passed the second-stage separation into the other water boxes.

[0017] The beneficial effect of the above-mentioned further solution is that, since the amount of the separated oil-water mixture is much larger than the amount of oil, by setting up multiple water boxes, the storage capacity of the separated oil-water mixture can be increased. In this way, when the liquid level in one of the water boxes exceeds a preset threshold, the second drain outlet can be switched to connect with other water boxes, thus completing the water storage task without affecting the operation of the main body of the separation device.

[0018] Furthermore, the marine oil spill separation device also includes a third water pump that is the same number as the water boxes and corresponds to each other. The third water pump is connected to the corresponding water box and pumps out the oil-water mixture in the corresponding water box when the liquid level in the water box exceeds a preset threshold.

[0019] The beneficial effect of the above-mentioned further solution is that by setting the third water pump, it can be started when the liquid level in the water box exceeds the preset threshold, and the oil-water mixture in the water box is pumped to a designated place, ensuring that the entire device can work continuously.

[0020] Furthermore, the marine oil spill separation device also includes a base that can float on the water surface and a propulsion fan. The workbench is set on the base, the propulsion fan is set on one side wall of the workbench, and the base is provided with multiple sets of turbine fans and buoyancy foam boards.

[0021] The beneficial effects of the above-mentioned further solutions are as follows: by setting the base, the entire separation device is ensured to float on the sea surface. By setting multiple sets of turbine fans and propulsion fans, the entire separation device can be driven to move and turn on the sea surface, realizing oil separation during movement and greatly improving separation efficiency. By setting the buoyancy foam board, the buoyancy of the entire device can be further increased, ensuring safety and stability when working on the sea surface.

[0022] Furthermore, the marine oil spill separation device also includes a controller, which is electrically connected to the oil content detector, the first water pump, the second water pump, the first solenoid valve, the second solenoid valve, the third water pump, the propulsion fan, the turbo fan, and the ultrasonic ranging module.

[0023] The beneficial effects of the above-mentioned further solution are: by setting the controller, the coordinated operation of the first water pump, the second water pump, the first solenoid valve, the second solenoid valve and the third water pump can be dynamically controlled according to the detection results of the oil content detector and the ultrasonic ranging module. At the same time, the movement and steering of the entire separation device can be automatically controlled by controlling the propulsion fan and the turbine fan, which greatly improves the operating efficiency.

[0024] The present invention also provides a separation method for the aforementioned marine oil spill separation device, comprising the following steps:

[0025] Start the first water pump, control the second solenoid valve to open, and inject the oil-water mixture to be separated into the first oil-water separator box. At the same time, control the ultrasonic ranging module to start.

[0026] Oily substances in the oil-water mixture entering the first oil-water separation box pass through the first porous oil-water separation plate and overflow into the first oil guide groove. The oil content detector detects the oil content of the oil-water mixture in the first oil-water separation box in real time.

[0027] Once the oil content of the oil-water mixture in the first oil-water separator reaches the standard, the first solenoid valve is opened, and the second water pump discharges the qualified oil-water mixture in the first oil-water separator into the second oil-water separator.

[0028] The oil-water mixture entering the second oil-water separator box undergoes secondary oil-water separation through the second porous oil-water separator plate. The oily substances after secondary separation overflow into the second oil guide tank. The remaining oil-water mixture in the second oil-water separator box after secondary separation is discharged into the water box from the second drain outlet.

[0029] The separation method of the marine oil spill separation device of the present invention achieves preliminary oil-water separation through a porous oil-water separation plate on a first oil-water separation box with selective wetting. After separation, the oily substances are directly discharged into the oil box. The oil content detector monitors the oil content of the oil-water mixture after preliminary separation in the first oil-water separation box in real time, monitors the separation status in real time, and discharges it into the second oil-water separation box for secondary separation after the oil content reaches the standard. The oily substances after secondary separation and the remaining oil-water mixture are directly discharged into the oil box and water box respectively, thereby achieving the separation of oily substances and water in the oil-water mixture, ensuring the high efficiency and controllability of the separation process, reducing separation costs and separation pollution, and having a simple separation principle and convenient operation. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a marine oil spill separation device according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of a primary separation mechanism according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of a first oil-water separator according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the connection between the primary separation mechanism and the secondary separation mechanism according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of a two-stage separation mechanism according to an embodiment of the present invention.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Workbench; 2. Support; 3. Oil content detector; 4. First water pump; 5. Second water pump; 6. Water box; 7. Oil box; 8. First oil-water separator box; 9-1. First porous oil-water separator plate; 9-2. Second porous oil-water separator plate; 10-1. First oil guide groove; 10-2. Second oil guide groove; 11. First oil outlet; 12. First drain outlet; 13. First solenoid valve; 14. Water inlet pipe; 15. Second solenoid valve; 16. Second oil-water separator box; 17. Reversing valve; 18. Base; 19. Propulsion fan; 20. Turbine fan; 21. Buoyancy foam board; 22. Ultrasonic ranging module. Detailed Implementation

[0037] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0038] like Figure 1As shown, a marine oil spill separation device includes a hollow workbench 1, an oil content detector 3, a first water pump 4, a primary separation mechanism, a second water pump 5, a secondary separation mechanism, a water box 6, and an oil box 7. A support 2 is mounted on the workbench 1, and an ultrasonic ranging module 22 is mounted on the support 2. The primary separation mechanism is located on the workbench 1 and below the ultrasonic ranging module 22. The first water pump 4 is connected to the primary separation mechanism and delivers an oil-water mixture to it. The oil content detector 3 is located inside the primary separation mechanism and detects the oil content of the oil-water mixture within it. The second water pump 5 is connected to the primary separation mechanism and discharges the oil-water mixture that has passed the separation and meets the standards into the secondary separation mechanism. The secondary separation mechanism is located inside the workbench 1 and below the primary separation mechanism to perform secondary separation of the oil-water mixture discharged from the primary separation mechanism. The oil outlet of the secondary separation mechanism is connected to the oil box 7, and the water outlet of the secondary separation mechanism is connected to the water box 6.

[0039] The marine oil spill separation device of the present invention achieves preliminary oil-water separation through a primary separation mechanism with selective wetting. The separated oil-water mixture is directly discharged to a secondary separation mechanism. The oil content detector 3 monitors the oil content of the oil-water mixture after preliminary separation in the primary separation mechanism in real time, monitors the separation status in real time, and discharges it into the secondary separation mechanism for secondary separation after the oil content reaches the standard. The oil substances after secondary separation and the remaining oil-water mixture are directly discharged into the oil box 7 and the water box 6, respectively, to achieve the separation of oil substances and water in the oil-water mixture, and ensure the high efficiency and controllability of the separation process, reduce separation costs and separation pollution, and the separation principle is simple and easy to operate.

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in one or more embodiments of the present invention, the primary separation mechanism includes a first oil-water separation box 8, which is disposed on the workbench 1 and located below the ultrasonic ranging module 22. The upper part of the four sides of the first oil-water separation box 8 is provided with a first porous oil-water separation plate 9-1 for selective wetting. The bottom of the outer side wall of the first oil-water separation box 8 is surrounded by a first oil guide groove 10-1 and a first oil outlet 11 communicating with the first oil guide groove 10-1. The bottom of the first oil-water separation box 8 is provided with a first drain outlet 12. The inlet of the second water pump 5 is connected to the first drain outlet 12 through a first drain pipe. A first solenoid valve 13 is provided on the first drain pipe. By setting a first porous oil-water separation plate 9-1 on the four sides of the first oil-water separation box 8, the oily substances in the oil-water mixture entering the first oil-water separation box 8 can be initially separated and discharged into the oil box through the first oil guide groove 10-1 and the first oil outlet 11. Simultaneously, the oil content detector 3 dynamically monitors the remaining oil-water mixture in the first oil-water separation box 8 in real time to ensure the oil content of the oil-water mixture entering the secondary separation mechanism after the initial separation. The first solenoid valve 13 controls the channel entering the secondary separation mechanism to ensure the effect of the two-stage separation.

[0041] Optionally, in one or more embodiments of the present invention, the primary separation mechanism further includes a water inlet pipe 14, which is connected to the first oil-water separation box 8. The water inlet pipe 14 is equipped with a second solenoid valve 15 for controlling the liquid level in the first oil-water separation box 8. By providing the second solenoid valve 15 on the water inlet pipe 14, the flow rate of the oil-water mixture entering the first oil-water separation box 8 can be controlled in real time based on the liquid level detected by the ultrasonic ranging module 22, thereby ensuring that the liquid level in the first oil-water separation box 8 is at a suitable level.

[0042] In one or more embodiments of the present invention, the number of the first oil-water separation boxes 8 is multiple, and the number of ultrasonic ranging modules 22 is equal to the number of the first oil-water separation boxes 8 and is arranged in a one-to-one correspondence. The first oil drain port 11 is located at a corner near the center of the workbench 1, and a through hole is provided at the center of the workbench 1. The multiple first oil drain ports 11 are connected to the oil box 7. By setting multiple first oil-water separation boxes 8, the separation efficiency can be multiplied.

[0043] like Figure 4 and Figure 5As shown, in one or more embodiments of the present invention, the secondary separation mechanism includes a second oil-water separation box 16, which is disposed within the workbench 1. The upper portions of the four sides of the second oil-water separation box 16 are respectively provided with second porous oil-water separation plates 9-2 for selective wetting. The bottom of the outer side wall of the second oil-water separation box 16 is surrounded by a second oil guide groove 10-2 and a second oil outlet communicating with the second oil guide groove 10-2. The bottom of the second oil-water separation box 16 is provided with a second drain outlet, which communicates with the oil box 7 and the water box 6. By setting the second oil-water separation box 16 and the second porous oil-water separation plates 9-2 thereon, the oil-water mixture discharged from the first drain outlet 12 of the first oil-water separation box 8 can be subjected to secondary separation, ensuring that the oil content of the oil-water mixture after secondary separation significantly meets the set standard, thus improving the separation quality. Secondary pollution is avoided by directly discharging the oily substances after secondary separation into the oil box 7 for collection.

[0044] To improve the effect of secondary separation, the aperture of the second porous oil-water separation plate 9-2 on the second oil-water separation box 16 is smaller than the aperture of the second porous oil-water separation plate 9-1 on the first oil-water separation box 8. This ensures that the oil content in the oil-water mixture after secondary separation is lower than the oil content in the oil-water mixture after primary separation, thus preventing secondary pollution.

[0045] Optionally, in one or more embodiments of the present invention, there are multiple water boxes 6. A reversing valve 17 is provided on the pipeline connecting the second water pump 5 and the primary separation mechanism. When the liquid level in one of the water boxes 6 exceeds a preset threshold, the second drain outlet of the secondary separation mechanism discharges the oil-water mixture that has passed the secondary separation into other water boxes 6. Since the amount of the separated oil-water mixture is much larger than the amount of oil, by setting multiple water boxes 6, the storage capacity of the separated oil-water mixture can be increased. This allows the second drain outlet to be switched to connect with other water boxes 6 when the liquid level in one of the water boxes 6 exceeds the preset threshold, completing the water storage task without affecting the operation of the main body of the separation device. In one or more embodiments of the present invention, the marine oil spill separation device further includes a third water pump that is the same number as the water boxes 6 and corresponds to each other. The third water pump is connected to the corresponding water box 6 and pumps out the oil-water mixture in the corresponding water box 6 when the liquid level in the water box 6 exceeds the preset threshold. By setting the third water pump, it can be activated when the liquid level in the water box 6 exceeds a preset threshold, and the oil-water mixture in the water box 6 can be pumped to a designated place to ensure that the entire device can work continuously.

[0046] To facilitate real-time monitoring of the liquid level in each water tank 6 and oil tank 7, ultrasonic ranging modules are installed above both water tank 6 and oil tank 7 to achieve real-time dynamic monitoring. Since the oil-water mixture in the water tank has reached the standard after two oil-water separations, the oil-water mixture in water tank 6 can be flexibly handled and directly pumped into the sea or to a designated location using a third water pump. However, the oily substances in oil tank 7 cannot be disposed of arbitrarily and must be transferred to a specific location or undergo other special treatments before being used for other purposes. Therefore, they cannot be directly pumped out using a water pump.

[0047] In one or more embodiments of the present invention, the marine oil spill separation device further includes a base 18 and a propulsion fan 19 that can float on the water surface. The workbench 1 is disposed on the base 18, and the propulsion fan 19 is disposed on one side wall of the workbench 1. The base 18 is provided with multiple sets of turbine fans 20 and buoyancy foam boards 21. By setting the base 18, the entire separation device is ensured to float on the sea surface. By setting multiple sets of turbine fans 20 and propulsion fans 19, the entire separation device can be driven to move and turn on the sea surface, realizing oil spill separation during movement and greatly improving separation efficiency. By setting the buoyancy foam boards 21, the buoyancy of the entire device can be further increased, ensuring safety and stability when working on the sea surface.

[0048] In one or more embodiments of the present invention, the marine oil spill separation device further includes a controller, which is electrically connected to the oil content detector 3, the first water pump 4, the second water pump 5, the first solenoid valve 13, the second solenoid valve 15, the third water pump, the propulsion fan 19, the turbine fan 20, and the ultrasonic ranging module 22. By setting the controller, the coordinated operation of the first water pump 4, the second water pump 5, the first solenoid valve 13, the second solenoid valve 15, and the third water pump can be dynamically controlled according to the detection results of the oil content detector 3 and the ultrasonic ranging module 22. At the same time, the movement and steering of the entire separation device can be automatically controlled by controlling the propulsion fan 19 and the turbine fan 20, which greatly improves the operating efficiency.

[0049] In this invention, by setting up a controller, the overall integration of the device can be improved, achieving one-button start-up and full automation. Through the liquid level detection of the ultrasonic ranging module, the second solenoid valve 15 for water inlet is opened. When the liquid level reaches a certain value, the second solenoid valve 15 is closed, stopping the liquid inlet. The oil content detector 3 monitors the oil-water separation in real time. When the oil content of the oil-water mixture in the first oil-water separation box 8 is lower than a certain value, the lower first solenoid valve 13 is opened, and the second water pump 5 pumps the separated oil-water mixture into the second oil-water separation box 16. After pumping, liquid is added again, and this cycle repeats to achieve fully automatic liquid inlet filtration. Simultaneously, an external DIV screen is connected to the internal control system, displaying information such as liquid level and oil-water content, and including start / stop control, allowing the device to achieve both online and offline control.

[0050] To improve the overall aesthetics of the device, the primary and secondary separation mechanisms are connected via threaded support rods. The number of external steel plates has been reduced, allowing for a seamless, integrated outer casing. This also creates more internal space for easier access and maintenance. Simultaneously, the water system has been adjusted and simplified. The liquid inlet method has been changed from bottom-pumping to top-pumping, and the water system has been streamlined, eliminating unnecessary bends and removing exposed water pipes. This allows liquid to more easily enter the primary separation mechanisms, and the water system is designed to be as symmetrical as possible, ensuring more even distribution of liquid to each primary separation mechanism.

[0051] The present invention also provides a separation method for the aforementioned marine oil spill separation device, characterized by comprising the following steps:

[0052] S1: Start the first water pump 4, control the second solenoid valve 15 to open, and inject the oil-water mixture to be separated into the first oil-water separator 8, while controlling the ultrasonic ranging module 22 to start.

[0053] S2: The oily substances in the oil-water mixture that enter the first oil-water separation box 8 pass through the first porous oil-water separation plate 9-1 and overflow into the first oil guide groove 10-1. The oil content detector 3 detects the oil content of the oil-water mixture in the first oil-water separation box 8 in real time.

[0054] S3: After the oil content of the oil-water mixture in the first oil-water separator 8 reaches the standard, the first solenoid valve 13 is opened and the second water pump 5 discharges the qualified oil-water mixture in the first oil-water separator 8 into the second oil-water separator 16.

[0055] S4: The oil-water mixture entering the second oil-water separation box 16 undergoes secondary oil-water separation through the second porous oil-water separation plate 9-2. The oily substances after secondary separation overflow into the second oil guide trough 10-2. The remaining oil-water mixture in the second oil-water separation box 16 after secondary separation is discharged into the water box 6 from the second drain outlet.

[0056] The separation method of the marine oil spill separation device of the present invention achieves preliminary oil-water separation through a first porous oil-water separation plate 9-1 on a first oil-water separation box 8 with selective wetting. After separation, the oily substances are directly discharged into the oil box 7. The oil content detector 3 monitors the oil content of the oil-water mixture after preliminary separation in the first oil-water separation box 8 in real time, monitors the separation status in real time, and discharges it into the second oil-water separation box 16 for secondary separation after the oil content reaches the standard. The oily substances after secondary separation and the remaining oil-water mixture are directly discharged into the oil box 7 and the water box 6, respectively, to achieve the separation of oily substances and water in the oil-water mixture, and ensure the high efficiency and controllability of the separation process, reduce separation costs and separation pollution, and the separation principle is simple and easy to operate.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A marine oil slick separation device, characterised in that The system includes a hollow workbench (1), an oil content detector (3), a first water pump (4), a primary separation mechanism, a second water pump (5), a secondary separation mechanism, a water box (6), and an oil box (7). A support (2) is mounted on the workbench (1), and an ultrasonic ranging module (22) is mounted on the support (2). The primary separation mechanism is located on the workbench (1) and below the ultrasonic ranging module (22). The first water pump (4) is connected to the primary separation mechanism and supplies an oil-water mixture to it. The oil content detector (3)... The first-stage separation mechanism is set up inside the first-stage separation mechanism, and the oil content of the oil-water mixture inside the first-stage separation mechanism is detected. The second water pump (5) is connected to the first-stage separation mechanism and discharges the oil-water mixture that has been separated and meets the standards by the first-stage separation mechanism into the second-stage separation mechanism. The second-stage separation mechanism is set inside the workbench (1) and located below the first-stage separation mechanism to perform secondary separation of the oil-water mixture discharged by the first-stage separation mechanism. The oil outlet of the second-stage separation mechanism is connected to the oil box (7), and the drain outlet of the second-stage separation mechanism is connected to the water box (6). The primary separation mechanism includes a first oil-water separation box (8), which is set on the workbench (1) and located below the ultrasonic ranging module (22). The upper part of the four sides of the first oil-water separation box (8) is provided with a first porous oil-water separation plate (9-1) for selective wetting. The bottom of the outer side wall of the first oil-water separation box (8) is surrounded by a first oil guide groove (10-1) and a first oil outlet (11) connected to the first oil guide groove (10-1). The bottom of the first oil-water separation box (8) is provided with a first drain outlet (12). The inlet of the second water pump (5) is connected to the first drain outlet (12) through a first drain pipe. A first solenoid valve (13) is provided on the first drain pipe. It also includes a third water pump that is the same number as the water boxes (6) and corresponds to them one by one. The third water pump is connected to the corresponding water box (6) and pumps out the oil-water mixture in the corresponding water box (6) when the liquid level in the water box (6) exceeds a preset threshold. It also includes a base (18) that can float on the water surface and a propulsion fan (19). The workbench (1) is set on the base (18), and the propulsion fan (19) is set on one side wall of the workbench (1). The base (18) is provided with multiple sets of turbine fans (20) and buoyancy foam boards (21). It also includes a controller, which is electrically connected to the oil content detector (3), the first water pump (4), the second water pump (5), the first solenoid valve (13), the third water pump, the propulsion fan (19), the turbo fan (20), and the ultrasonic ranging module (22), respectively.

2. The marine oil slick separating device according to claim 1, characterized in that The primary separation mechanism also includes a water inlet pipe (14), which is connected to the first oil-water separation box (8). The water inlet pipe (14) is equipped with a second solenoid valve (15) for controlling the liquid level in the first oil-water separation box (8). The controller is electrically connected to the second solenoid valve (15).

3. The marine oil slick separating apparatus of claim 1, wherein The number of the first oil-water separator (8) is multiple, and the number of the ultrasonic ranging module (22) and the ultrasonic ranging module (22) are equal to the number of the first oil-water separator (8) and are set one by one. The first oil drain port (11) is set at the corner near the center of the workbench (1). A through hole is set at the center of the workbench (1), and multiple first oil drain ports (11) are connected to the oil box (7).

4. The marine oil slick separating apparatus of claim 2, wherein The secondary separation mechanism includes a second oil-water separation box (16), which is disposed in the workbench (1). The upper part of the four sides of the second oil-water separation box (16) is provided with a second porous oil-water separation plate (9-2) for selective wetting. The bottom of the outer side wall of the second oil-water separation box (16) is surrounded by a second oil guide groove (10-2) and a second oil outlet communicating with the second oil guide groove (10-2). The bottom of the second oil-water separation box (16) is provided with a second drain outlet, which is connected to the oil box (7) and the second drain outlet is connected to the water box (6). By setting the second oil-water separation box (16) and the second porous oil-water separation plate (9-2) thereon, the oil-water mixture discharged from the first drain outlet (12) of the first oil-water separation box (8) is separated in a secondary manner.

5. A separation method based on the separation device for marine oil slicks according to claim 4, characterized in that, Includes the following steps: Start the first water pump (4), control the second solenoid valve (15) to open, and inject the oil-water mixture to be separated into the first oil-water separator (8), while controlling the ultrasonic ranging module (22) to start. Oily substances in the oil-water mixture that enter the first oil-water separation box (8) pass through the first porous oil-water separation plate (9-1) and overflow into the first oil guide groove (10-1). The oil content detector (3) detects the oil content of the oil-water mixture in the first oil-water separation box (8) in real time. After the oil content of the oil-water mixture in the first oil-water separator (8) reaches the standard, the first solenoid valve (13) is opened and the second water pump (5) discharges the qualified oil-water mixture in the first oil-water separator (8) into the second oil-water separator (16). The oil-water mixture entering the second oil-water separation box (16) undergoes secondary oil-water separation through the second porous oil-water separation plate (9-2). The oily substances after secondary separation overflow into the second oil guide tank (10-2). The remaining oil-water mixture in the second oil-water separation box (16) after secondary separation is discharged into the water box (6) from the second drain outlet.

Images