Bilge water pretreatment device

Abstract

The utility model discloses a bilge water pretreatment device, which relates to the bilge water pretreatment field, and comprises a machine body, a first oil discharge pipe and an oil residue cabin, one side above the machine body is fixedly connected with a bilge water inlet pipe, and one side of the top of the machine body is fixedly connected with a high-level alarm liquid level switch; and one side in the machine body is fixedly connected with a first partition plate. According to the bilge water pretreatment device, by arranging the first oil discharge pipe, the second oil discharge pipe, the first splash-proof cover and the second splash-proof cover, oil residues are subjected to secondary separation in the use process of the bilge water pretreatment device, the oil residues in bilge water are subjected to separation pretreatment to the maximum extent, the oil-water separation efficiency is improved, and the oil-water separation effect is improved. The bilge water pretreatment device is simple in structure and convenient to operate, reduces subsequent load of an oil-water separator, reduces maintenance frequency and replacement cost of spare parts, avoids splashing and leakage when liquid flows, ensures that the surrounding environment is clean and tidy when bilge water is treated, and is convenient for working personnel to use the bilge water pretreatment device.

Description

Technical Field

[0001] This utility model relates to the field of bilge water pretreatment, specifically a bilge water pretreatment device. Background Technology

[0002] Bilge water is a mixed liquid that accumulates in the bilge of a ship during operation due to various leaks and condensation. Its main component is water, and it also contains pollutants such as oil, metal fragments, and salt. Before treating the bilge water, in order to reduce the load on the subsequent oil-water separation system and improve the treatment efficiency, the staff can use a bilge water pretreatment device to pretreat the bilge water. Bilge water pretreatment is a process of preliminary purification of oily wastewater at the bottom of the ship's engine room.

[0003] However, current bilge water pretreatment devices still have some shortcomings. The existing bilge water pretreatment devices have not fully considered the oil discharge structure. If the oil discharge structure of the bilge water pretreatment device is not fully considered during use, a large amount of oil residue will be present in the bilge water, which will put a great burden on the subsequent oil-water separation device, which may cause certain economic losses, seriously affect the efficient operation of the equipment, and make it inconvenient for staff to use the bilge water pretreatment device. Utility Model Content

[0004] The purpose of this invention is to provide a bilge water pretreatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bilge water pretreatment device, comprising a body, a first oil drain pipe, and an oil sludge tank. A bilge water inlet pipe is fixedly connected to one side of the upper part of the body, and a high-level alarm liquid level switch is fixedly connected to one side of the top of the body. A first partition is fixedly connected to one side of the interior of the body, and a second partition is fixedly connected to the other side of the interior of the body. The first oil drain pipe is located on one side of the interior of the body, and a second oil drain pipe is located on the other side of the interior of the body. A flow pipe is fixedly connected to the bottom end of the first and second oil drain pipes. A drain pipe is fixedly connected to the bottom of the side wall of the body. The oil sludge tank is located on one side of the lower part of the body, and a bilge water tank is located on the other side of the lower part of the body. An oil-water separator is located on the outside of the bilge water tank.

[0006] Furthermore, there are three of each of the first and second oil drain pipes. The bottom outer walls of the three first and second oil drain pipes are fixedly connected to the machine body. Limiting components are provided between the first and second oil drain pipes, and the ends of the limiting components are fixedly connected to the side walls of the machine body.

[0007] Furthermore, one end of the flow tube has a T-shaped structure, and the other end of the flow tube has an L-shaped structure. A shut-off valve is provided in the middle section of the flow tube, and a fixing member is provided on the outer side of the middle section of the flow tube. At the same time, the top of the fixing member is fixedly connected to the bottom of the machine body.

[0008] Furthermore, a first splash guard is provided on the outer side of the bottom end of the flow tube, and a viewing glass is fixedly connected to the top of the first splash guard. A first limiting ring is rotatably connected to both sides of the top of the first splash guard, and the inner wall of the first limiting ring is provided with an internal thread. The first limiting ring is rotatably connected to the bottom end of the flow tube through the internal thread.

[0009] Furthermore, a second splash cover is provided on the outer side of the bottom end of the drain pipe, and a viewing glass is fixedly connected to the top of the second splash cover. A second limiting ring is rotatably connected to the center of the top of the second splash cover, and the inner wall of the second limiting ring is provided with an internal thread. The second limiting ring is rotatably connected to the bottom end of the drain pipe through the internal thread.

[0010] Furthermore, an inlet pipe is fixedly connected to one side of the top of both the oil sludge tank and the bilge water tank, and a fixed funnel is fixedly connected to the top of the inlet pipe. A rotating component is rotatably connected to the outer wall of the top of the fixed funnel, and the inner wall of the rotating component is provided with an internal thread. At the same time, the rotating component is rotatably connected to a first splash guard and a second splash guard through the internal thread.

[0011] Furthermore, a pump is provided on one side of the oil-water separator, and a suction pipe is fixedly connected to one side of the pump. The end of the suction pipe extends into the interior of the bilge tank, and a filter is provided at the end of the suction pipe.

[0012] Furthermore, a connecting pipe is fixedly connected to the other side of the pump, and the other end of the connecting pipe is fixedly connected to the oil-water separator, and an outlet pipe is fixedly connected to the other side of the oil-water separator.

[0013] This utility model provides a bilge water pretreatment device, which has the following beneficial effects:

[0014] 1. This utility model is equipped with a first oil pipe and a second oil pipe. During the use of the bilge water pretreatment device, after a period of stillness, the oil and water separate into layers. The upper layer of oil sludge enters the first oil pipe and flows into the oil sludge tank through the flow pipe. The bilge water is then allowed to stand still again, causing the oil and water to separate again. The oil sludge separated from the second oil-water separation enters the second oil pipe and flows into the oil sludge tank through the flow pipe for secondary separation. This maximizes the separation and pretreatment of oil sludge in the bilge water, improves the efficiency of oil-water separation, reduces the load on subsequent oil-water separators, lowers maintenance frequency and spare parts replacement costs, and facilitates the use of the bilge water pretreatment device by staff.

[0015] 2. This utility model is equipped with a first splash guard and a second splash guard. During the use of the bilge water pretreatment device, the rotating part that is limited and rotated on the outer wall of the top of the fixed funnel is rotated. The internal thread on the inner wall of the rotating part is used to connect the rotating part with the first splash guard and the second splash guard, thereby completing the connection between the first splash guard and the fixed funnel and between the second splash guard and the fixed funnel. This prevents splashing and leakage when the liquid flows, ensures the cleanliness of the surrounding environment during bilge water treatment, reduces the cleaning workload of the staff, and facilitates the use of the bilge water pretreatment device by the staff. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the bilge water pretreatment device of this utility model;

[0017] Figure 2 This is a three-dimensional sectional view of a bilge water pretreatment device according to the present invention.

[0018] Figure 3 This is a three-dimensional sectional view of the first oil drain pipe-rotating component of the bilge water pretreatment device of this utility model.

[0019] Figure 4 This is a three-dimensional sectional view of the drain pipe-rotating component of a bilge water pretreatment device according to this utility model.

[0020] In the diagram: 1. Body; 2. Binder water inlet pipe; 3. High-level alarm liquid level switch; 4. First partition; 5. Second partition; 6. First oil drain pipe; 7. Second oil drain pipe; 8. Limiting component; 9. Flow pipe; 10. Fixing component; 11. First splash guard; 12. First limiting ring; 13. Drain pipe; 14. Second splash guard; 15. Second limiting ring; 16. Oil sludge tank; 17. Binder water tank; 18. Inlet pipe; 19. Fixed funnel; 20. Rotating component; 21. Oil-water separator; 22. Pump; 23. Suction pipe; 24. Filter; 25. Connecting pipe; 26. Outlet pipe. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1-4As shown, a bilge water pretreatment device includes a body 1, a first oil drain pipe 6, and an oil sludge tank 16. A bilge water inlet pipe 2 is fixedly connected to one side of the upper part of the body 1, and a high-level alarm liquid level switch 3 is fixedly connected to one side of the top of the body 1. A first partition 4 is fixedly connected to one side of the interior of the body 1, and a second partition 5 is fixedly connected to the other side of the interior of the body 1. The first oil drain pipe 6 is located on one side of the interior of the body 1, and a second oil drain pipe 7 is located on the other side of the interior of the body 1. There are three first oil drain pipes 6 and three second oil drain pipes 7. The outer walls of the bottom ends of the three first oil drain pipes 6 and two oil drain pipes 7 are fixedly connected to the body 1. Limiting components 8 are provided between the first oil drain pipes 6 and between the second oil drain pipes 7, and the ends of the limiting components 8 are fixedly connected to the side walls of the body 1. A flow pipe 9 is fixedly connected to the bottom ends of the first oil drain pipes 6 and the second oil drain pipes 7. One end of the flow pipe 9 has a T-shaped structure, and the other end of the flow pipe 9 has an L-shaped structure. Furthermore, a shut-off valve is provided in the middle section of the flow pipe 9, and a fixing member 10 is provided on the outer side of the middle section of the flow pipe 9. The top of the fixing member 10 is fixedly connected to the bottom of the body 1. A first splash cover 11 is provided on the outer side of the bottom end of the flow pipe 9, and a viewing glass is fixedly connected to the top of the first splash cover 11. A first limiting ring 12 is rotatably connected to the top two sides of the first splash cover 11. The inner wall of the first limiting ring 12 is provided with an internal thread. The first limiting ring 12 is rotatably connected to the bottom end of the flow pipe 9 through the internal thread. A drain pipe 13 is fixedly connected to the bottom of the side wall of the body 1. A second splash cover 14 is provided on the outer side of the bottom end of the drain pipe 13. A viewing glass is fixedly connected to the top of the second splash cover 14. A second limiting ring 15 is rotatably connected to the center of the top of the second splash cover 14. The inner wall of the second limiting ring 15 is provided with an internal thread. The second limiting ring 15 is rotatably connected to the bottom end of the drain pipe 13 through the internal thread.

[0023] The specific operation is as follows: Binder water enters the machine body 1 through bilge water inlet pipe 2. When the liquid reaches the high-level alarm switch 3, the external pump stops injecting bilge water. Then, the machine body 1, filled with bilge water, is left to stand still for a period of time. Utilizing the density difference between oil and water, after a period of stillness, the oil and water separate into layers, and the oil sludge floats on top. Next, the operator opens the shut-off valve in the middle section of the flow pipe 9 at the bottom of the first oil pipe 6, allowing the upper layer of oil sludge to enter the first oil pipe 6 and flow into the oil sludge tank 16 through the flow pipe 9. At this time, the water sinking at the bottom flows through the first baffle 4 to the space on the left side of the first baffle 4, and then through the second baffle 5 to the leftmost space. After the first oil pipe 6 finishes discharging the oil sludge, the bilge water is left to stand still again, causing the oil and water to separate again. Then, the shut-off valve in the middle section of the flow pipe 9 at the bottom of the second oil pipe 7 is opened, allowing the oil sludge that has separated from the oil-water separation again to enter the second oil pipe 7 and flow into the oil sludge tank 16 through the flow pipe 9. Finally, the operator opens the shut-off valve in the middle section of the drain pipe 13, allowing bilge water to enter the bilge water tank 17. Additionally, the operator uses the first limiting ring 12, which is rotatably connected to the top of the first splash cover 11, to rotate the bottom end of the flow pipe 9 to the first limiting ring 12, so that the first splash cover 11 is connected to the outside of the bottom end of the flow pipe 9. Similarly, the operator uses the second limiting ring 15, which is rotatably connected to the center of the top of the second splash cover 14, to rotate the bottom end of the drain pipe 13 to the second limiting ring 15, so that the second splash cover 14 is connected to the outside of the bottom end of the drain pipe 13. Both the first splash cover 11 and the second splash cover 14 are fixedly connected to viewing glass. If the oil-water separation effect is observed to be poor, the shut-off valve can be closed to stop the discharge, allowing the engine block 1 to remain stationary for a longer period. If the oil-water separation is observed to be good, the shut-off valve is not closed, facilitating the operator's use of the bilge water pretreatment device.

[0024] like Figures 1-4 As shown, the oil sludge tank 16 is located on one side of the lower part of the body 1, and a bilge water tank 17 is located on the other side of the lower part of the body 1. Both the oil sludge tank 16 and the bilge water tank 17 have inlet pipes 18 fixedly connected to their top sides. A fixed funnel 19 is fixedly connected to the top of the inlet pipe 18, and a rotating component 20 is rotatably connected to the outer wall of the top of the fixed funnel 19. The inner wall of the rotating component 20 has internal threads, and the rotating component 20 is rotatably connected to a first splash guard 11 and a second splash guard 14 via these internal threads. Furthermore, an oil-water separator 21 is provided on the outside of the bilge tank 17. A pump 22 is provided on one side of the oil-water separator 21, and a suction pipe 23 is fixedly connected to one side of the pump 22. The end of the suction pipe 23 extends into the interior of the bilge tank 17, and a filter element 24 is provided at the end of the suction pipe 23. A connecting pipe 25 is fixedly connected to the other side of the pump 22, and the other end of the connecting pipe 25 is fixedly connected to the oil-water separator 21. An outlet pipe 26 is fixedly connected to the other side of the oil-water separator 21.

[0025] The specific operation is as follows: After the staff connects the first splash guard 11 to the outer side of the bottom end of the flow pipe 9 and the second splash guard 14 to the outer side of the bottom end of the drain pipe 13, the first splash guard 11 and the second splash guard 14 are placed above the fixed funnel 19 at the top of the inlet pipe 18. By rotating the rotating part 20 that is limited and rotated on the outer wall of the top of the fixed funnel 19, the rotating part 20 is connected to the first splash guard 11 and the second splash guard 14 by using the internal thread on the inner wall of the rotating part 20. This completes the connection between the first splash guard 11 and the fixed funnel 19 and between the second splash guard 14 and the fixed funnel 19, avoiding splashing and leakage during flow. The liquid entering the bilge water tank 17 enters the oil-water separator 21 under the action of the pump 22. After being processed by the oil-water separator 21, it flows out to the outside from the outlet pipe 26, which facilitates the use of the bilge water pretreatment device by the staff.

[0026] In summary, this bilge water pretreatment device, according to Figures 1-4As shown in the diagram, during the use of the bilge water pretreatment device, bilge water first enters the machine body 1 through the bilge water inlet pipe 2. When the liquid level reaches the high-level alarm switch 3, the external pump stops injecting bilge water. Then, the machine body 1, filled with bilge water, is left to stand still for a period of time. Utilizing the density difference between oil and water, after a period of stillness, the oil and water separate into layers, and the oil sludge floats on top. Next, the operator opens the shut-off valve in the middle section of the flow pipe 9 at the bottom of the first oil drain pipe 6, allowing the upper layer of oil sludge to enter the first oil drain pipe 6 and flow into the oil sludge tank 16 through the flow pipe 9. At this time, the water that sinks to the bottom flows through the first partition 4 to the space on the left side of the first partition 4, and then through the second partition 5 to... In the leftmost space, after the first oil drain pipe 6 finishes discharging the oil sludge, the bilge water is allowed to settle again, causing the oil and water to separate again. Then, the shut-off valve in the middle section of the flow pipe 9 at the bottom of the second oil drain pipe 7 is opened, allowing the oil sludge that has separated again to enter the second oil drain pipe 7 and flow into the oil sludge tank 16 through the flow pipe 9. Finally, the operator opens the shut-off valve in the middle section of the drain pipe 13, allowing the bilge water to enter the bilge water tank 17. Furthermore, the operator uses the first limiting ring 12, which is rotatably connected to the top of the first splash guard 11, to rotate the bottom end of the flow pipe 9 to the first limiting ring 12, so that the first splash guard 11 is connected to the outside of the bottom end of the flow pipe 9. The operator then uses the second splash guard... The second limiting ring 15, which is rotatably connected to the top center limit of the drain pipe 13, rotates the bottom end of the drain pipe 13 to the second limiting ring 15, so that the second splash cover 14 is connected to the outside of the bottom end of the drain pipe 13. The tops of both the first splash cover 11 and the second splash cover 14 are fixedly connected with viewing glass. When the oil-water separation effect is observed to be poor, the discharge can be stopped by closing the shut-off valve, allowing the machine body 1 to remain stationary for a longer period. If the oil-water separation state is observed to be good, the shut-off valve is not closed. After the operator connects the first splash cover 11 to the outside of the bottom end of the flow pipe 9 and the second splash cover 14 to the outside of the bottom end of the drain pipe 13, the first splash cover 11 and the second splash cover 14 are then separated. Do not place it above the fixed funnel 19 at the top of the inlet pipe 18. Rotate the rotating part 20 that is limited and rotated on the outer wall of the top of the fixed funnel 19. Use the internal thread on the inner wall of the rotating part 20 to connect the rotating part 20 with the first splash cover 11 and the second splash cover 14. This completes the connection between the first splash cover 11 and the fixed funnel 19 and between the second splash cover 14 and the fixed funnel 19, preventing splashing and leakage during flow. The liquid entering the bilge water tank 17 enters the oil-water separator 21 under the action of the pump 22. After being processed by the oil-water separator 21, it flows out to the outside from the outlet pipe 26, making it convenient for the staff to use the bilge water pretreatment device.

[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A bilge water pretreatment device, comprising a body (1), a first oil drain pipe (6), and an oil sludge tank (16), characterized in that, A bilge water inlet pipe (2) is fixedly connected to one side of the upper part of the body (1), and a high-level alarm liquid level switch (3) is fixedly connected to one side of the top of the body (1). A first partition (4) is fixedly connected to one side of the interior of the body (1), and a second partition (5) is fixedly connected to the other side of the interior of the body (1). A first oil drain pipe (6) is located on one side of the interior of the body (1), and a second oil drain pipe (7) is located on the other side of the interior of the body (1). A flow pipe (9) is fixedly connected to the bottom of the first oil drain pipe (6) and the second oil drain pipe (7). A drain pipe (13) is fixedly connected to the bottom of the side wall of the body (1). An oil sludge tank (16) is located on one side of the lower part of the body (1), and a bilge water tank (17) is located on the other side of the lower part of the body (1). An oil-water separator (21) is located on the outside of the bilge water tank (17).

2. The bilge water pretreatment device according to claim 1, characterized in that, There are three of each of the first oil drain pipe (6) and the second oil drain pipe (7). The bottom outer walls of the three first oil drain pipes (6) and the second oil drain pipes (7) are fixedly connected to the machine body (1). Limiting parts (8) are provided between the first oil drain pipes (6) and between the second oil drain pipes (7). The end of the limiting part (8) is fixedly connected to the side wall of the machine body (1).

3. The bilge water pretreatment device according to claim 1, characterized in that, One end of the flow tube (9) is a T-shaped structure, and the other end of the flow tube (9) is an L-shaped structure. A stop valve is provided in the middle section of the flow tube (9), and a fixing part (10) is provided on the outer side of the middle section of the flow tube (9). At the same time, the top of the fixing part (10) is fixedly connected to the bottom of the body (1).

4. The bilge water pretreatment device according to claim 1, characterized in that, The bottom outer side of the flow tube (9) is provided with a first splash cover (11), and the top of the first splash cover (11) is fixedly connected with a viewing glass. The top two sides of the first splash cover (11) are rotatably connected with a first limiting ring (12), and the inner wall of the first limiting ring (12) is provided with an internal thread. The first limiting ring (12) is rotatably connected to the bottom of the flow tube (9) through the internal thread.

5. The bilge water pretreatment device according to claim 1, characterized in that, A second splash cover (14) is provided on the outer side of the bottom end of the drain pipe (13), and a viewing glass is fixedly connected to the top of the second splash cover (14). A second limiting ring (15) is rotatably connected to the center of the top of the second splash cover (14), and an internal thread is provided on the inner wall of the second limiting ring (15). The second limiting ring (15) is rotatably connected to the bottom end of the drain pipe (13) through the internal thread.

6. The bilge water pretreatment device according to claim 1, characterized in that, The top side of the oil sludge tank (16) and the bilge water tank (17) are both fixedly connected to an inlet pipe (18), and the top end of the inlet pipe (18) is fixedly connected to a fixed funnel (19). The top outer wall of the fixed funnel (19) is rotatably connected to a rotating component (20), and the inner wall of the rotating component (20) is provided with an internal thread. The rotating component (20) is rotatably connected to a first splash guard (11) and a second splash guard (14) through the internal thread.

7. A bilge water pretreatment device according to claim 1, characterized in that, A pump (22) is provided on one side of the oil-water separator (21), and a suction pipe (23) is fixedly connected to one side of the pump (22). The end of the suction pipe (23) extends into the interior of the bilge tank (17), and a filter element (24) is provided at the end of the suction pipe (23).

8. A bilge water pretreatment device according to claim 7, characterized in that, A connecting pipe (25) is fixedly connected to the other side of the pump (22), and the other end of the connecting pipe (25) is fixedly connected to the oil-water separator (21), and an outlet pipe (26) is fixedly connected to the other side of the oil-water separator (21).

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