Marine oily sewage treatment device
By designing an oil-water separation interface fixing device in a marine oil-containing sewage treatment device and dynamically fixing the partition plate with a hydraulic rod, the problem of interface changes when the hull is shaken is solved, and the interface stability and cost reduction effect is achieved.
Patent Information
- Application Number
- CN202411799562.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-04-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When the hull of the traditional ship oil and sewage separation device shakes, the oil and water separation interface is prone to change, causing sewage to enter the oil collection tank and increase the separation cost.
A marine oil-containing sewage treatment device is designed, using an oil-water separation interface fixing device, including a cross beam, a tie rod, a hydraulic rod and a partition plate, which is dynamically fixed by the hydraulic rod to maintain the oil-water separation interface stable.
It effectively prevents the height of the oil-water separation interface suddenly from changing when the hull shakes, prevents sewage from entering the oil collecting tank from the oil spill, and reduces separation costs.
Smart Images
Figure CN119797633A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of oily wastewater separation, in particular to a marine oily wastewater treatment device. Background Art
[0002] With the development of science and technology, environmental issues are increasingly valued by people, especially the problem of seawater pollution. The treatment of oily wastewater discharged by ships has attracted people's attention. Traditional ship oil and water separation devices mostly use gravity separation method. Its basic structure contains impurity filter chamber and oil-water separation chamber, as well as oil collecting tank and sewage tank. The oil and water are separated by static method. The waste oil overflows through the oil overflow port, and the sewage is collected through the sewage tank, and then discharged into the seawater through the ship's side. However, when the hull shakes, the oil-water separation interface changes, which will cause sewage to enter the oil collecting tank through the oil overflow port, resulting in the need to separate the sewage in the oil collecting tank again, increasing the separation cost. Summary of the invention
[0003] In view of the shortcomings of the prior art mentioned in the background technology during use, the present invention provides a ship oily wastewater treatment device, which has the advantage of preventing the oil-water separation interface from suddenly changing and causing wastewater to enter the oil collecting chamber when the hull shakes, thereby solving the technical problems raised in the above-mentioned background technology.
[0004] The present invention provides the following technical solution: a marine oily wastewater treatment device, comprising an oil-water separation chamber and an oil-water separation interface fixing device fixedly installed in the oil-water separation chamber, the oil-water separation interface fixing device comprising a crossbeam, the crossbeam is fixedly installed above the interior of the oil-water separation chamber, a pull rod is fixedly installed above the crossbeam, the pull rod has an initial pulling force to lift the entire oil-water separation interface fixing device, the interior of the crossbeam is a cylindrical cavity, the cylindrical cavity of the crossbeam is through-connected with the interior of an oil cylinder, a partition plate is provided below the oil cylinder, a hinge of a non-equiangular annular array is installed on the outer wall of the oil cylinder, the hinge is hinged to one end of a hydraulic rod, and the other end of the hydraulic rod is connected to The top end of the articulated seat is hinged, and the articulated seat is fixedly mounted on the surface of the partition plate. The oil cylinder is connected to the inner cavity of the hydraulic rod through an oil pipe. A fixed block is provided on the inner wall of the oil-water separation chamber and directly below one end of the cross beam. The middle opening of the fixed block is used for vertical inversion of the piston rod. The piston rod slides in the fixed block. The top end of the piston rod is fixedly connected to the cross beam above, and the inner cavity of the piston rod is connected to the interior of the cross beam. One end of the inner cavity of the cross beam is sealed and slidably connected with a positioning piston. A limit block is installed at one end inside the cross beam. The limit block is used to limit the movement of the positioning piston. One end of the positioning piston is connected to one end inside the cross beam through a spring, and the spring is initially in a compressed state.
[0005] Preferably, a damping hole is provided on the piston of the piston rod, and the damping hole is used to connect the upper and lower chambers of the piston.
[0006] Preferably, the surface of the partition plate is provided with evenly distributed through holes for oil to pass through.
[0007] Preferably, telescopic rods are fixedly installed on both left and right sides of the bottom of the partition plate, the bottom ends of the telescopic rods are fixedly connected to baffles, and plugs are installed on the upper surface of the baffles, and the plugs are adapted to the through holes evenly distributed on the surface of the upper partition plate.
[0008] The present invention has the following beneficial effects: the ship oily wastewater treatment device installs a plastic plate that can be suspended on the oil-water separation interface and hydraulic rods arranged in a triangular shape in the oil-water separation chamber. When the hull shakes, the hydraulic rods can fix the plastic plate at a certain position and fix the oil-water separation interface, thereby effectively preventing the sudden change in the height of the oil-water separation interface when the hull shakes, thereby preventing a large amount of sewage from entering the oil collecting tank from the oil overflow port. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a marine oily wastewater treatment device;
[0010] Figure 2 for Figure 1 Schematic diagram of the internal structure of the medium impurity filtering chamber;
[0011] Figure 3 for Figure 1 Schematic diagram of the internal structure of the sewage treatment room;
[0012] Figure 4 It is a schematic diagram of the structure of the present invention;
[0013] Figure 5 It is a cross-sectional view of the internal structure of the oil-water separation chamber;
[0014] Figure 6 Schematic diagram of the layout of the oil-water separation interface fixing device.
[0015] In the figure: 1. impurity filtering chamber; 2. oil-water separation chamber; 3. sewage treatment chamber; 4. sewage tank; 5. top cover; 6. water inlet; 7. oil outlet; 8. water outlet; 9. grille; 10. water pump; 11. oil overflow port; 12. crossbeam; 13. pull rod; 14. oil cylinder; 15. partition plate; 16. hinge frame; 17. hydraulic rod; 18. hinge seat; 19. oil pipe; 20. fixing block; 21. piston rod; 22. arc plate; 23. positioning piston; 24. limit block; 25. spring; 26. telescopic rod; 27. baffle; 28. plug; 29. activated carbon. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0017] See also Figure 1 , Figure 2 and Figure 5 A marine oily wastewater separation device comprises an impurity filter chamber 1, an oil-water separation chamber 2, a sewage treatment chamber 3, and a sewage tank 4. A top cover 5 is installed on the top of the impurity filter chamber 1, and the top cover 5 is detachably connected to the top of each chamber. The top cover 5 above the impurity filter chamber 1 has a hole for installing a water inlet 6, the top cover 5 above the sewage treatment chamber 3 has a hole for installing an oil outlet 7, and the bottom of the sewage tank 4 has a hole for installing a water outlet 8. A grille 9 is installed inside the impurity separation chamber 1, and the grid gap of the grille 9 should not be too large. At the same time, the grille 9 needs to be cleaned regularly to prevent the surface of the grille 9 from being blocked, and a water pump 10 is installed at the bottom end of the impurity filter chamber 1. When the oily wastewater passes through the grille 9, the water pump 10 is started to pump the oily wastewater to the oil-water separation chamber 2 through the water pump 10. The sewage treatment chamber 3 is divided into two upper and lower cavities. The upper cavity is used to collect oil, and the lower cavity is provided with activated carbon 29 for secondary sewage treatment. The oil-water separation chamber 2 is connected to the sewage treatment chamber 3 and an oil overflow port 11 is provided above the inner wall.
[0018] See also Figure 3 , Figure 4An oil-water separation interface fixing device is installed inside the oil-water separation chamber 2. The oil-water separation interface fixing device includes a crossbeam 12. The crossbeam 12 is fixedly installed on the upper part of the oil-water separation chamber 2. A pull rod 13 is fixedly installed on the upper part of the crossbeam 12. The bottom end of the pull rod 13 is fixedly connected to the crossbeam 12. The pull rod 13 has an initial pulling force to lift the entire oil-water separation interface fixing device. The interior of the crossbeam 12 is a cylindrical cavity. The cylindrical cavity of the crossbeam 12 is connected to the interior of the oil cylinder 14. The oil cylinder 14 is fixedly installed in the middle of the bottom end of the crossbeam 12. A partition plate 15 is provided below the oil cylinder 14. The surface of the partition plate 15 is provided with evenly distributed through holes for passing oil. The outer wall of the oil cylinder 14 is installed with a hinge frame 16 with a non-uniform angle annular array. The hinge frame 16 is hinged with one end of the hydraulic rod 17 The other end of the hydraulic rod 17 is hinged to the top of the hinge seat 18, and the hinge seat 18 is fixedly installed on the surface of the partition plate 15. One end of the oil pipe 19 is connected to the bottom of the oil cylinder 14, and the other end of the oil pipe 19 is communicated with the oil chamber of the hydraulic rod 17. There are three oil pipes 19 connected to three hydraulic rods 17 respectively. The fixed block 20 is installed just below the left end of the cross beam 12 and is fixedly connected to the inner wall of the oil-water separation chamber 2. The middle opening of the fixed block 20 is used for the vertical inversion of the piston rod 21. The top of the piston rod 21 is fixedly connected to the upper cross beam 12. At the same time, the inner cavity of the piston rod 21 is communicated with the interior of the cross beam 12. The oil inside the piston rod 21 can flow into the interior of the cross beam 12 through the piston movement of the piston rod 21, and the bottom end of the piston rod 21 is welded to the arc plate 22 below.
[0019] See also Figure 5The interior of the cross beam 12 is a cylindrical cavity and the interior is interconnected with the connection with the oil cylinder 14. The connection is welded. A limit block 24 is installed at the left end of the interior of the cross beam 12 to limit the movement of the positioning piston 23 to the right. One end of the positioning piston 23 is connected to the left end of the interior of the cross beam 12 through a spring 25. The spring 25 is initially in a compressed state. When the positioning piston 23 moves to the right, it is blocked by the limit block 24. The positioning piston 23 can control the change in the space where the oil volume in the oil cylinder 14 is located, so that the hydraulic rod 17 can switch between extension and retraction and state maintenance, that is, when the liquid level in the oil-water separation chamber 2 shakes and impacts the arc plate 22, the piston rod 21 is pressed to move upward, and the positioning piston 23 is maintained at the limit block 24, and the space where the oil volume in the fixed oil cylinder 14 remains unchanged. Since the three hydraulic rods 17 are arranged at non-equiangular angles, when the partition plate 15 is tilted, the extension and retraction changes of the three hydraulic rods 17 cannot complement each other, so that the partition plate 15 can be temporarily positioned at the instantaneous position, thereby fixing the oil-water separation interface; when the shaking liquid level falls back to the other side and impacts, it takes time for the positioning piston 23 and the piston rod 21 to return to their positions, and the partition plate 15 can still serve as a liquid level positioning function. On the contrary, the liquid level impact is opposite to the above process. The tilted partition plate 15 will drive the hydraulic rod 17 to compress the oil volume, push the positioning piston 23 to compress the spring 25, and generate tilt resistance. Similarly, there is resistance when the partition plate 15 is tilted, so that the partition plate 15 acts as a positioning partition of the separation interface.
[0020] The initial compression amount of the spring 25 can be adjusted using a pressure-adjusting screw to adjust the sensitivity of the pressure-moving positioning piston 23, that is, to adjust the initial elastic force of the spring 25, thereby adjusting the pressure brought by the change in the amount of compressed oil when the partition plate 15 is tilted, and the force with which the positioning piston 23 presses the spring 25.
[0021] The partition plate 15 is dynamically fixed to the separation interface using a hydraulic rod 17, which can effectively slow down the shaking of the liquid level when the hull shakes. At the same time, under the impact of instantaneous large shaking, the impact force drives the partition plate 15 to be instantly fixed, and does not shake synchronously with the shaking of the separation interface, preventing the water impurities below from entering the oil collection device through the oil overflow port 11 in large quantities due to shaking.
[0022] A damping hole is provided on the piston of the piston rod 21, and the damping hole is used to connect the upper and lower chambers of the piston. The function of the damping hole is that when the hull shakes slightly, it does not affect the free extension and contraction of the hydraulic rod 17. When the hull shakes greatly instantly, the damping effect produces a rigid limit, and the hydraulic rod 17 remains unchanged for a short time.
[0023] The partition plate 15 is connected to the baffle plate 27 below through telescopic rods 26 symmetrically arranged on the left and right sides. A plug 28 is installed on the upper surface of the baffle plate 27. The plug 28 corresponds to the through holes evenly distributed on the surface of the upper partition plate 15. Arc plates 22 are fixedly installed below the left and right sides of the baffle plate 27. When the oily wastewater shakes greatly, it will hit the arc plate 22, causing the baffle plate 27 to move upward by the telescopic rod 26. At the same time, the plug 28 is engaged with the through hole of the upper partition plate 15, so that the partition plate 15 can achieve better positioning and blocking effects.
[0024] The method of using the present invention is as follows: the oily wastewater enters the impurity filter chamber 1 through the upper water inlet 6, and the oily wastewater passes through the grille 9 inside the impurity filter chamber 1 to remove larger solid impurities inside. At the same time, water is pumped into the oil-water separation chamber 2 through the water pump 10 below. The oily wastewater is separated from the oil-water by standing still in the oil-water separation chamber 2. When the hull shakes, the oily wastewater will shake left and right to impact the arc plate 22. At the same time, the arc plate 22 will push the piston rod 21 upward, and the positioning piston 23 inside the crossbeam 12 moves to the right under the action of the spring 25. Because the oil is blocked by the limiting block 24, no excess oil enters the oil cylinder 14. At the same time, the oil in the hydraulic rod 17 cannot change by squeezing and pushing the positioning piston 23, so that the partition plate 15 at the oil-water separation interface is fixed by the hydraulic rod 17. The oil above the partition plate 15 enters the oil collecting device through the oil overflow port 11, and the sewage below the partition plate 15 enters the sewage treatment chamber 3 through the water pump 10, and further removes impurities through the activated carbon 29, and finally enters the sewage tank 4 for unified discharge.
Claims
1. A marine oily wastewater treatment device, comprising an oil-water separation chamber (2) and an oil-water separation interface fixing device fixedly installed in the oil-water separation chamber (2), characterized in that: The oil-water separation interface fixing device comprises a crossbeam (12), wherein the crossbeam (12) is fixedly installed on the upper part of the interior of the oil-water separation chamber (2), a pull rod (13) is fixedly installed on the upper part of the crossbeam (12), and the pull rod (13) has an initial pulling force to lift the entire oil-water separation interface fixing device, the interior of the crossbeam (12) is a cylindrical cavity, and the cylindrical cavity of the crossbeam (12) is through-connected with the interior of the oil cylinder (14), a partition plate (15) is provided below the oil cylinder (14), and a hinge (16) of a non-uniform angle annular array is installed on the outer wall of the oil cylinder (14), the hinge (16) is hinged to one end of a hydraulic rod (17), and the other end of the hydraulic rod (17) is hinged to the top end of an articulated seat (18), and the articulated seat (18) is fixedly installed on the surface of the partition plate (15), and the oil cylinder (14) and the hydraulic The inner cavity of the rod (17) is connected through an oil pipe (19); a fixing block (20) is provided on the inner wall of the oil-water separation chamber (2) and directly below one end of the cross beam (12); a hole is opened in the middle of the fixing block (20) for vertically inverting the piston rod (21); the piston rod (21) slides in the fixing block (20); the top end of the piston rod (21) is fixedly connected to the cross beam (12) above; at the same time, the inner cavity of the piston rod (21) is connected to the interior of the cross beam (12); one end of the inner cavity of the cross beam (12) is sealed and slidably connected with a positioning piston (23); a limit block (24) is installed at one end inside the cross beam (12); the limit block (24) is used to limit the movement of the positioning piston (23); one end of the positioning piston (23) is connected to one end inside the cross beam (12) through a spring (25); the spring (25) is initially in a compressed state.
2. A marine oily wastewater treatment device according to claim 1, characterized in that: A damping hole is provided on the piston of the piston rod (21), and the damping hole is used to connect the upper and lower chambers of the piston.
3. The marine oily wastewater treatment device according to claim 1, characterized in that: The surface of the partition plate (15) is provided with evenly distributed through holes for oil to pass through.
4. The marine oily wastewater treatment device according to claim 3 is characterized by: Telescopic rods (26) are fixedly installed on both left and right sides of the bottom of the partition plate (15), and the bottom ends of the telescopic rods (26) are fixedly connected to baffles (27). A plug (28) is installed on the upper surface of the baffle (27), and the plug (28) is adapted to the through holes evenly distributed on the surface of the upper partition plate (15).