Marine oil-water separator

Abstract

The oil-water separator comprises an outer shell, a rotating rod is arranged in the outer shell, an adjusting and repairing scraping piece and a main scraping piece which are coaxially staggered are arranged on the rotating rod corresponding to an adjusting and supplementing opening and a main liquid inlet respectively, the tail end of the adjusting and repairing scraping piece and the tail end of the main scraping piece are both in contact with the inner wall of the outer shell, and the main liquid inlet drives the rotating rod and the adjusting and repairing scraping piece to rotate. The liquid supplementing opening is adjusted to delay rotation of the rotating rod and the main scraping piece. The rotating rod is matched with the two-way scraping piece, water flow serves as power to rotate in a self-rotating mode to conduct scraping and oil removal on the main liquid inlet and the adjusting liquid supplementing opening, the main scraping piece exerts force, and the adjusting and supplementing scraping piece is adjusted, the supplemented water amount is guaranteed, and the situation that the efficiency of liquid entering the outer shell is seriously affected by overspeed rotation of the two-way scraping piece is also prevented; the scraping piece is designed into a sectional type, so that the internal space occupation is reduced, and the separation efficiency is improved; the two main scraping pieces are arranged in a staggered mode, mutual interference is prevented, and scientificity and reasonability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of marine equipment technology, and more specifically, to a marine oil-water separator. Background Technology

[0002] Ships generate large amounts of oil-water mixtures during navigation. If these mixtures are discharged directly into the ocean or rivers without treatment, they will inevitably cause serious environmental pollution. Therefore, oil-water separation technology is needed to treat the oil-water mixtures to meet the permitted standards before they are discharged.

[0003] For example, application number 202311169649.1 discloses a ship oil-water separator and a wastewater reuse device. Through the inlet pipe, it can provide a starting force for the motor during use, thereby reducing the loss generated when it starts running. At the same time, it can effectively stir and promote oil-water separation, and can scrape off the discharged impurities, making the subsequent wastewater treatment process more convenient. Through the bactericidal structure, it can stir the water flow and make the bactericidal effect of the water better. Through the process of stirring, sterilization and enhancement, bacteria can be killed efficiently and quickly, thereby achieving the effect of reusability.

[0004] However, the properties of oil mean that it will inevitably accumulate in the corresponding locations of containers or pipelines during the entire flow process, whether it is introduced into the separator, during oil-water separation, or when it is discharged from the separator. Furthermore, it is necessary to consider that excessive space occupancy inside the separator will affect the efficiency of oil-water separation. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a marine oil-water separator to solve one or more of the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A marine oil-water separator includes an outer shell. The outer shell has, from top to bottom, an adjustment and replenishment port, a main inlet, and a drain port. The adjustment and replenishment port and the main inlet are staggered. A rotating rod is provided inside the outer shell. On the rotating rod, a coaxially staggered adjustment scraper and a main scraper are respectively provided corresponding to the adjustment and replenishment port and the main inlet. The ends of both the adjustment and replenishment scrapers are in contact with the inner wall of the outer shell. Liquid introduced through the main inlet impacts the main scraper and drives the rotating rod and the adjustment scraper to rotate. Liquid introduced through the adjustment and replenishment port impacts the adjustment scraper and delays the rotation of the rotating rod and the main scraper.

[0008] Furthermore, the drain outlet is connected to a pressure regulating pipe, the other end of which leads back to the outer casing, and the pressure regulating pipe is equipped with a pair of regulating valves.

[0009] Furthermore, both the adjustment scraper and the main scraper are composed of several bidirectional scrapers arranged in a circular array, and the bidirectional scrapers on the adjustment scraper are staggered from the bidirectional scrapers on the main scraper.

[0010] Furthermore, the bidirectional scraper consists of two symmetrical wall scrapers connected at their backs, and a spherical groove is formed on the front of the wall scraper.

[0011] Furthermore, the end of the wall scraper is a blade section, and the blade section has a positive rotation direction.

[0012] Furthermore, the blade segment is provided with counter-rotating water-jetting holes arranged in a vertical array along its upper edge, and the water-jetting holes are matched with the blade segment on the other side.

[0013] Furthermore, the bidirectional scraper has an extension section in the vertical direction that does not affect the rotation of the adjusting scraper and the main scraper.

[0014] Furthermore, the center of the spherical groove is offset from the vertical axis of the front side of the wall scraper.

[0015] In summary, this utility model has the following beneficial effects: By using a rotating rod in conjunction with a bidirectional scraper, the main inlet and the regulating inlet are scraped and degreased using the water flow as power. The main scraper outputs force, and the regulating scraper adjusts, ensuring sufficient water supply while preventing the bidirectional scraper's overspeed rotation from severely affecting the efficiency of liquid entering the outer casing. The eccentrically positioned spherical groove ensures the rotating rod can rotate in the expected direction. The water flushing hole positions the blade section in the liquid flow path, providing a degree of auxiliary scraping and cleaning. The blade section's rotation direction matches the rotating rod's deflection, ensuring sufficient power for natural rotation and avoiding energy waste. The symmetrical design of the bidirectional scraper allows for water flow intervention regardless of its position. The segmented design of the scraper reduces internal space occupation and improves separation efficiency. A dedicated pressure regulating pipeline prevents excessive internal pressure and facilitates secondary water separation, improving discharge compliance. The staggered arrangement of the two main scrapers prevents mutual interference, demonstrating a scientific and reasonable design. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of one embodiment of the present utility model;

[0017] Figure 2 A cross-sectional view of the outer shell in one embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the rotating rod in one embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the bidirectional scraper in one embodiment of the present invention.

[0020] In the diagram: 1. Outer shell; 2. Adjustment and replenishment port; 3. Main inlet; 4. Drain; 5. Rotating rod; 6. Adjustment and replenishment scraper; 7. Main scraper; 8. Pressure regulating pipeline; 9. Regulating valve; 10. Bidirectional scraper; 11. Spherical groove; 12. Blade section; 13. Water flushing hole. Detailed Implementation

[0021] Example:

[0022] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0023] Marine oil-water separators, such as Figure 1 and Figure 2 As shown, the outer shell 1 has a vertical frame structure. The top is equipped with accessories such as a pressure gauge and a temperature gauge. An adjustment and replenishment port 2 is located at the top front, a main inlet 3 is located at the bottom right side, and a drain port 4 is located at the bottom. The central axis of the adjustment and replenishment port 2 is perpendicular to the central axis of the main inlet 3, ensuring they are staggered. Pipelines for oil-water mixtures are connected to the main inlet 3 and the adjustment and replenishment port 2, and a discharge pipe is connected to the drain port 4. A pressure regulating pipe 8 is connected to the discharge pipe at the drain port 4. The other end of the pressure regulating pipe 8 leads to the left side of the outer shell 1 and connects to the inner cavity of the outer shell 1. A regulating valve 9 is installed in both the inlet and outlet sections of the pressure regulating pipe 8.

[0024] like Figure 3 As shown, a vertical rotating rod 5 is provided inside the outer casing 1. The two ends of the rotating rod 5 are respectively connected to the top and bottom of the inner cavity of the outer casing 1. Adjusting scraper 6 and main scraper 7 are arranged on the rotating rod 5 at positions corresponding to the heights of the adjusting replenishment port 2 and the main inlet port 3. Both the adjusting scraper 6 and the main scraper 7 consist of three bidirectional scrapers 10 arranged in a circular array around the rotating axis. The three bidirectional scrapers 10 are vertically staggered, meaning that the central axes of the adjusting scraper 6 and the main scraper 7 coincide, but the bidirectional scrapers are not aligned. Figure 4As shown, the bidirectional scraper 10 consists of two symmetrical wall scrapers connected at their backs. A spherical groove 11 is formed on the front of each wall scraper. The center of the spherical groove 11 is offset from the vertical axis of the front of the wall scraper, meaning it is an irregular groove with a deflection direction. The spherical groove 11 inherently guides and concentrates force, better driving the rotating rod 5. The offset center of the spherical groove 11 amplifies this function. The end of the wall scraper is a blade section 12 with a positive rotation direction. This positive rotation direction means that the rotation direction of the blade section 12 matches the rotation direction after action on that side. The blade at the end of the blade section 12 points towards the center of the bidirectional scraper 10, and the blades on both sides of the blade section 12 converge towards the center, thus forming a central gap groove at the end of the bidirectional scraper 10, effectively reducing internal stress and conforming to water flow. The blade section 12 contacts the inner wall of the outer casing 1. The blade section 12 has counter-rotating water jets 13 arranged vertically along its edge. These water jets 13 are matched to the blade section 12 on the other side, allowing the incoming water flow to be concentrated and accelerated through the water jets 13, effectively rinsing the blade section 12 on the other side. In addition, the upper wall scraper of the bidirectional scraper 10 extends vertically without affecting the rotation of the adjusting scraper 6 or the main scraper 7, increasing the scraping area within the effective range. The liquid introduced by the main inlet 3 impacts the main scraper 7 and concentrates the force through the spherical groove 11, driving the rotating rod 5 and the adjusting scraper 6 above it to rotate, thus achieving output rotation. The liquid introduced by the adjusting replenishment inlet 2 impacts the adjusting scraper 6 and concentrates the force through the spherical groove 11, delaying the rotation of the rotating rod 5 and the main scraper 7 above it, thus achieving fine adjustment. This combination of forward and reverse rotation allows for better control of the action.

[0025] It should be noted that this specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A marine oil-water separator, comprising an outer casing (1), characterized in that: The outer shell (1) is provided with an adjustment and replenishment port (2), a main inlet (3), and a drain port (4) in a top-to-bottom order. The adjustment and replenishment port (2) and the main inlet (3) are staggered. A rotating rod (5) is provided inside the outer shell (1). On the rotating rod (5), a coaxially staggered adjustment scraper (6) and a main scraper (7) are respectively provided for the adjustment and replenishment port (2) and the main inlet (3). The ends of the adjustment scraper (6) and the main scraper (7) are in contact with the inner wall of the outer shell (1). The liquid introduced by the main inlet (3) impacts the main scraper (7) and drives the rotating rod (5) and the adjustment scraper (6) to rotate. The liquid introduced by the adjustment and replenishment port (2) impacts the adjustment scraper (6) and slows down or prevents the rotation of the rotating rod (5) and the main scraper (7).

2. The marine oil-water separator according to claim 1, characterized in that: The drain outlet (4) is connected to a pressure regulating pipe (8), and the other end of the pressure regulating pipe (8) is led back to the outer casing (1). The pressure regulating pipe (8) is equipped with a pair of regulating valves (9).

3. The marine oil-water separator according to claim 1, characterized in that: Both the adjustment scraper (6) and the main scraper (7) are composed of several bidirectional scrapers (10) arranged in a ring array. The bidirectional scrapers (10) on the adjustment scraper (6) are staggered from the bidirectional scrapers (10) on the main scraper (7).

4. The marine oil-water separator according to claim 3, characterized in that: The bidirectional scraper (10) consists of two symmetrical wall scrapers connected on their back sides, and a spherical groove (11) is provided on the front side of the wall scraper.

5. The marine oil-water separator according to claim 4, characterized in that: The end of the wall scraper is a blade section (12), and the blade section (12) has a positive rotation direction.

6. The marine oil-water separator according to claim 5, characterized in that: The blade segment (12) has a vertical array of counter-rotating water jets (13) along its upper edge, and the water jets (13) are matched with the blade segment (12) on the other side.

7. The marine oil-water separator according to claim 3, characterized in that: The bidirectional scraper (10) has an extension section in the vertical direction and does not affect the rotation of the adjustment scraper (6) and the main scraper (7).

8. The marine oil-water separator according to claim 4, characterized in that: The center of the spherical groove (11) is offset from the vertical axis of the front of the wall scraper.

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