Passenger ship bilge water collection manifold

By designing a main bilge water collection pipe for passenger ships and utilizing a float and pump system to achieve rapid drainage of bilge water and separation of oil, the problems of untimely bilge water discharge and oil residue in existing technologies have been solved, ensuring cargo quality and ship safety.

CN119459958BActive Publication Date: 2026-01-30SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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Patent Information

Application Number
CN202411424080.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2026-01-30
Estimated Expiration
2044-10-12

AI Technical Summary

Technical Problem

Existing technologies cannot quickly drain bilge water or effectively separate oil slicks, resulting in oil slicks remaining in the bilge water, affecting cargo quality and ship structural safety.

Method used

A bilge water collection manifold for passenger ships was designed, which includes a filtration mechanism and a drainage mechanism. It utilizes a float and pump system to achieve rapid pumping and oil separation of bilge water, and achieves oil-water separation through the cooperation of an oil filter disc and an oil filter plate.

Benefits of technology

It enables rapid filtration and discharge of bilge water, effectively separating oil spills and protecting cargo quality and ship structural safety.

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Abstract

This invention relates to the field of bilge water main pipe technology, specifically a bilge water collection main pipe for passenger ships. The main pipe includes a hull, a bilge plate on the hull bottom, a bilge water main pipe on the bilge plate, a drainage mechanism for automatic drainage control on the bilge bottom, and a filtration mechanism for oil removal and discharge of the bilge water on the bilge plate. An oil filter tank is fixedly connected to the upper surface of the bilge plate, a cover plate is fixedly installed on the top of the oil filter tank, and a water outlet is located on one side of the oil filter tank. This bilge water collection main pipe utilizes a drainage mechanism connected to branch pipes on the bilge bottom. Multiple branch pipes are connected to the bilge water main pipe and fixed to a second pump for pumping bilge water. A drainage pipe at the outlet of the second pump extends through the cover plate into the oil filter tank, allowing the pumped bilge water to be sent to the filtration mechanism for oil-water separation and filtration.
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Description

Technical Field

[0001] This invention relates to the field of bilge water main pipe technology, specifically to bilge water collection main pipe for passenger ships. Background Technology

[0002] Bulch water refers to the water that accumulates in the bilge of a ship during transport due to leaks in the outer plating, insufficient watertightness of hatch covers, pipeline leaks, leaks in the stern shaft sleeve and rudder stock sleeve stuffing box, and condensation of moisture caused by temperature differences. Bulch water must be removed in a timely manner, otherwise it will cause the cargo to become damp and deteriorate, cause the hull structure to rust, and may even endanger the safety of the ship.

[0003] Existing technologies mostly utilize bilge water collection manifolds to pump out bilge water. However, due to the uncontrollable generation of bilge water, it cannot be discharged quickly when it is generated. Furthermore, since bilge water contains oil, existing technologies, although equipped with filters, are mostly one-piece structures that cannot rise and fall with the liquid level and cannot filter oil floating on the surface. Although the filtration effect is good, the filtration speed is slow. Based on the shortcomings of existing technologies, this invention designs a bilge water collection manifold for passenger ships. Summary of the Invention

[0004] This invention provides a bilge water collection manifold for passenger ships, which has the advantages of rapid filtration and discharge of bilge water and rapid pumping out of bilge water.

[0005] The present invention provides the following technical solution: a passenger ship bilge water collection main pipe, including a hull, a bilge plate provided on the hull bilge, a bilge water main pipe provided on the bilge plate, a drainage mechanism for automatic drainage control provided on the hull bilge, and a filtration mechanism for oil removal and discharge of passenger ship bilge water provided on the bilge plate.

[0006] The filtration mechanism includes an oil filter tank, a cover plate, a water outlet, a lifting rod, a fixed top plate, an oil filter tray, a lifting slide plate, a through groove, a back plate, a second float, a retaining plate, and an oil filter plate. The oil filter tank is fixedly connected to the upper surface of the bottom plate of the tank. The cover plate is fixedly installed on the top of the oil filter tank. The water outlet is located on one side of the oil filter tank. The lifting rod is fixedly connected to the bottom of the inner cavity of the oil filter tank. The fixed top plate is fixedly connected to the top of the lifting rod. The oil filter tray slides and rises inside the oil filter tank. The lifting slide plate is fixedly connected to the rear side of the oil filter tray. The through groove extends through the back of the oil filter tray. The back plate is fixedly connected to the back of the oil filter tray. The second float is fixedly connected to the back plate. The retaining plate is fixedly connected to both sides of the inner wall of the oil filter tray. The oil filter plate is snapped into the retaining plate.

[0007] As a preferred embodiment of the present invention, the drainage mechanism includes a suction head, a fixing plate, a pressure-sensitive switch, a bracket, a pressure rod, and a first float. The suction head is disposed at the bottom of the inner cavity of the hull, the fixing plate is fixedly connected to the side wall of the suction head, the pressure-sensitive switch is disposed at the top of the suction head, the bracket is fixedly connected to the upper surface of the suction head, the pressure rod is rotatably connected to the bracket, and the first float is fixedly connected to the outer end of the pressure rod.

[0008] As a preferred embodiment of the present invention, a drainage hole is provided on one side of the hull, a first pump is fixedly connected to the upper surface of the bottom plate, a drainage pipe is fixedly connected to the outlet end of the first pump, and a pumping pipe is fixedly connected to the inlet end of the first pump.

[0009] As a preferred embodiment of the present invention, a longitudinal cabin plate is fixedly connected to the bottom of the hull, and a transverse cabin plate is fixedly connected to the bottom of the hull.

[0010] As a preferred embodiment of the present invention, a branch pipe is fixedly connected to the side wall of the bilge water main, a second pump is fixedly connected to one end of the bilge water main, and a drain pipe is fixedly connected to the outlet end of the second pump.

[0011] As a preferred embodiment of the present invention, the oil filter plate is disposed in front of the through groove, the second float floats on the water surface and the front end of the oil filter plate is lower than the water surface, and the lifting slide plate is slidably connected to the lifting rod.

[0012] As a preferred embodiment of the present invention, the top end of the pressure rod is connected to a pressure-sensitive switch, the bottom of the liquid extraction head is provided with a water extraction port, the bottom of the liquid extraction head does not contact the bottom of the hull cavity and there is a gap, and the fixing plate is fixedly connected to the bottom of the hull cavity.

[0013] As a preferred embodiment of the present invention, one end of the water distribution pipe is fixedly connected to the water outlet at the top of the liquid extraction head, one end of the bilge water main pipe is connected to the water inlet of the second pump, and one end of the drain pipe extends through the cover plate to the bottom of the inner cavity of the oil filter tank.

[0014] As a preferred embodiment of the present invention, the transverse compartment is fixedly connected to both sides of the longitudinal compartment.

[0015] As a preferred embodiment of the present invention, the outer end of the drain pipe is inserted into the drain hole, and the other end of the pump pipe is fixedly inserted into the outlet hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The bilge water collection manifold of the passenger ship pumps bilge water through a second pump into the oil filter tank via a drain pipe. The bilge water carrying oil is temporarily stored in the oil filter tank by the filter disc, and the liquid level continues to rise. When the liquid level is higher than the front end of the filter disc, the bilge water and the oil floating on the surface enter the filter disc. At this time, the filter plate intercepts the oil, and the bilge water moves through the filter plate and the passageway to the other side of the filter disc. After filtration on the other side, the water level of the bilge water rises and comes into contact with the second float. Due to the increased water level, the second float moves upward. The ball causes the connected oil filter tray to move upwards, keeping the water levels on both sides of the oil filter tray connected. Since the front opening of the oil filter tray is lower than the position of the second float, the front of the oil filter tray is lower than the water surface after the second float floats. At this time, the relatively clean bilge water passes through the bottom of the oil filter tray, while the oil and bilge water floating on the water surface enter the oil filter tray for collection. The bilge water and oil are separated by the filtration of the oil filter plate. Finally, the first pump is started to discharge the bilge water from the oil filter tank. This device facilitates the filtration and discharge of bilge water.

[0018] 2. The bilge water collection main of the passenger ship is in standby mode when the pressure-sensitive switch is not turned on. When water enters the hull, the water level rises slowly and the buoyancy drives the first float to move upward. Since the first float is connected to the bottom of the pressure rod, and the pressure rod is connected to the pressure-sensitive switch under the support of the bracket, the pressure rod will rotate under the limit state of the bracket when the first float moves upward and press down the pressure-sensitive switch to open the pumping head. The second pump is used to quickly pump the bilge water in the hull into the water distribution pipe and the bilge water main. Then the second pump pumps the bilge water and oil in the bilge water main into the filtration mechanism for filtration and discharge through the drain pipe. This device facilitates automatic pumping and drainage of bilge water. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the hull cross-section of the present invention;

[0021] Figure 3 This is a schematic diagram of the connection structure of the first pump of the present invention;

[0022] Figure 4 This is a schematic diagram of the connection structure between the drainage mechanism and the bilge water main of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the bilge water collection manifold of a passenger ship;

[0024] Figure 6 This is a schematic diagram of the connection structure between the filter mechanism, the first pump, and the second pump of the present invention;

[0025] Figure 7This is an exploded view of the filtration mechanism of the present invention;

[0026] Figure 8 This is a schematic diagram of the exploded structure of the oil filter disc of the present invention.

[0027] In the diagram: 1. Hull; 101. Drain hole; 102. First pump; 103. Drain pipe; 104. Pump water pipe; 2. Bottom plate; 201. Longitudinal plate; 202. Transverse plate; 3. Bottom water main; 301. Branch pipe; 302. Second pump; 303. Drain pipe; 4. Drainage mechanism; 401. Suction head; 402. Fixing plate; 403. Pressure-sensitive switch; 404. Bracket; 405. Pressure rod; 406. First float; 5. Filtration mechanism; 501. Oil filter tank; 502. Cover plate; 503. Water outlet; 504. Lifting rod; 505. Fixed top plate; 506. Oil filter tray; 507. Lifting slide plate; 508. Through groove; 509. Back plate; 510. Second float; 511. Clamping plate; 512. Oil filter plate. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-8 The passenger ship bilge water collection main pipe includes a hull 1, a bilge plate 2 is provided on the bilge of the hull 1, a bilge water main pipe 3 is provided on the bilge plate 2, a drainage mechanism 4 for automatic drainage control is provided on the bilge of the hull 1, a filtration mechanism 5 for oil removal and discharge of the passenger ship bilge water is provided on the bilge plate 2, a drain hole 101 is provided on one side of the hull 1, a first pump 102 is fixedly connected to the upper surface of the bilge plate 2, a drain pipe 103 is fixedly connected to the outlet end of the first pump 102, a pump pipe 104 is fixedly connected to the inlet end of the first pump 102, the outer end of the drain pipe 103 is inserted into the drain hole 101, and the other end of the pump pipe 104 is fixedly inserted into the outlet hole 503.

[0030] Please see Figure 4 The bottom of the hull 1 is fixedly connected to a longitudinal bulkhead 201, and the bottom of the hull 1 is fixedly connected to a transverse bulkhead 202, which is fixedly connected to both sides of the longitudinal bulkhead 201.

[0031] Please see Figure 4-6A branch pipe 301 is fixedly connected to the side wall of the bilge water main 3. A second pump 302 is fixedly connected to one end of the bilge water main 3. A drain pipe 303 is fixedly connected to the outlet end of the second pump 302. One end of the branch pipe 301 is fixedly connected to the outlet end of the top of the suction head 401. One end of the bilge water main 3 is connected to the inlet end of the second pump 302. One end of the drain pipe 303 extends through the cover plate 502 to the bottom of the inner cavity of the oil filter tank 501.

[0032] By setting a second pump 302, the bilge water can be pumped out using the bilge water main pipe 3 and the branch pipe 301 as an auxiliary drainage mechanism 4. By setting a drainage pipe 303, the pumped bilge water can be pumped into the filtration mechanism 5 for filtration.

[0033] Please see Figure 6-8 The filtration mechanism 5 includes an oil filter tank 501, a cover plate 502, a water outlet 503, a lifting rod 504, a fixed top plate 505, an oil filter tray 506, a lifting slide plate 507, a through groove 508, a back plate 509, a second float 510, a retaining plate 511, and an oil filter plate 512. The oil filter tank 501 is fixedly connected to the upper surface of the bottom plate 2. The cover plate 502 is fixedly installed on the top of the oil filter tank 501. The water outlet 503 is located on one side of the oil filter tank 501. The lifting rod 504 is fixedly connected to the bottom of the inner cavity of the oil filter tank 501. The fixed top plate 505 is fixedly connected to the top of the lifting rod 504. The oil filter disc 506 slides and rises inside the oil filter tank 501. The lifting slide plate 507 is fixedly connected to the rear side of the oil filter disc 506. The through groove 508 runs through the back of the oil filter disc 506. The back plate 509 is fixedly connected to the back of the oil filter disc 506. The second float ball 510 is fixedly connected to the back plate 509. The retaining plate 511 is fixedly connected to both sides of the inner wall of the oil filter disc 506. The oil filter plate 512 is snapped into the retaining plate 511. The oil filter plate 512 is located in front of the through groove 508. The second float ball 510 floats on the water surface and the front end of the oil filter disc 506 is lower than the water surface. The lifting slide plate 507 is slidably connected to the lifting rod 504.

[0034] By setting up an oil filter box 501, an oil filter tray 506, a through channel 508, a clamping plate 511, and an oil filter plate 512, the bilge water and oil entering the oil filter box 501 can be filtered and separated. By setting up a lifting rod 504, a fixed top plate 505, a lifting slide plate 507, a back plate 509, and a second float 510, the oil filter tray 506 can move with the rise and fall of the liquid level.

[0035] Please see Figure 4-5The drainage mechanism 4 includes a suction head 401, a fixing plate 402, a pressure-sensitive switch 403, a bracket 404, a pressure rod 405, and a first float 406. The suction head 401 is located at the bottom of the inner cavity of the hull 1. The fixing plate 402 is fixedly connected to the side wall of the suction head 401. The pressure-sensitive switch 403 is located at the top of the suction head 401. The bracket 404 is fixedly connected to the upper surface of the suction head 401. The pressure rod 405 is rotatably connected to the bracket 404. The first float 406 is fixedly connected to the outer end of the pressure rod 405. The top end of the pressure rod 405 is connected to the pressure-sensitive switch 403. The bottom of the suction head 401 is provided with a water inlet. The bottom of the suction head 401 does not contact the bottom of the inner cavity of the hull 1 and there is a gap. The fixing plate 402 is fixedly connected to the bottom of the inner cavity of the hull 1.

[0036] By setting up a suction head 401 and a fixing plate 402, the suction head 401 is fixed to the bottom of the inner cavity of the hull 1, and the bilge water of the hull 1 is quickly pumped out. By setting up a pressure-sensitive switch 403, a bracket 404, a pressure rod 405 and a first float 406, the pressure-sensitive switch 403 is closed and the suction head 401 does not work when no bilge water is generated in the hull of the hull 1. If bilge water is generated in the hull 1, the first float 406 will move upward due to buoyancy and press the pressure-sensitive switch 403 to make the suction head 401 and the second pump 302 work.

[0037] Working principle: When the bilge water collection main pipe of the passenger ship is in use, in the initial state, the bilge plate 2, longitudinal bilge plate 201 and transverse bilge plate 202 are first set at the bottom of the inner cavity of the hull 1. The inlet and outlet ends of the first pump 102 set on the upper surface of the bilge plate 2 are respectively connected to the drain pipe 103 and the pump water pipe 104, and the drain pipe 103 is connected to the drain hole 101 to facilitate the discharge of the bilge water filtered in the filter mechanism 5. The drain mechanism 4 set at the bottom of the hull 1 is connected to the water distribution pipe 301, and multiple water distribution pipes 301 are connected to the bilge water main pipe 3 and fixed on the second pump 302 to facilitate the suction of bilge water. The drain pipe 303 set at the outlet end of the second pump 302 extends through the cover plate 502 into the oil filter tank 501 to send the pumped bilge water into the filter mechanism 5 for oil-water separation and filtration treatment.

[0038] When bilge water needs to be filtered and discharged, the second pump 302 first pumps the bilge water into the oil filter tank 501 through the drain pipe 303. The bilge water carrying oil is temporarily stored in the oil filter tank 501 by the oil filter plate 506, and the liquid level continues to rise. When the liquid level is higher than the front end of the oil filter plate 506, the bilge water and the oil floating on the surface enter the oil filter plate 506. At this time, the oil filter plate 512 intercepts the oil. The bilge water moves to the other side of the oil filter plate 506 through the oil filter plate 512 and the through channel 508. After filtration on the other side, the water level of the bilge water rises and comes into contact with the second float 510. Due to the rise in water level, the second float 510 moves upward. The float 510 drives the connected oil filter plate 506 to move upward, keeping the water levels on both sides of the oil filter plate 506 connected. Since the front end of the oil filter plate 506 is lower than the position of the second float 510, the front end of the oil filter plate 506 is lower than the water surface after the second float 510 floats. At this time, the relatively clean bilge water passes through the bottom of the oil filter plate 506, while the oil and bilge water floating on the water surface enter the oil filter plate 506 for collection. After being filtered by the oil filter plate 512, the bilge water and oil are separated. Finally, the first pump 102 is started to discharge the bilge water in the oil filter tank 501. This device facilitates the filtration and discharge of bilge water.

[0039] When automatic drainage of bilge water is required, the second pump 302 is in standby mode when the pressure-sensitive switch 403 is not turned on. When water enters the hull 1, the water level slowly rises and the buoyancy drives the first float 406 to move upward. Since the first float 406 is connected to the bottom of the pressure rod 405, and the pressure rod 405 is connected to the pressure-sensitive switch 403 under the support of the bracket 404, when the first float 406 moves upward, the pressure rod 405 will rotate under the limiting state of the bracket 404 and press down the pressure-sensitive switch 403 to open the suction head 401. The second pump 302 will then quickly pump the bilge water in the hull into the water distribution pipe 301 and the bilge water main pipe 3. Then, the second pump 302 will pump the bilge water and oil in the bilge water main pipe 3 into the filter mechanism 5 through the drain pipe 303 for filtration and discharge. This device facilitates automatic drainage of bilge water.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A passenger ship bilge water collection main comprising a hull (1), characterized in that: The ship body (1) is provided with a bilge bottom plate (2), and the bilge bottom plate (2) is provided with a bilge water main (3); the bilge bottom of the ship body (1) is provided with a drainage mechanism (4) facilitating automatic control of drainage; and the bilge bottom plate (2) is provided with a filtering mechanism (5) facilitating oil removal and discharge of the passenger ship bilge water. The filtering mechanism (5) comprises an oil filtering tank (501), a cover plate (502), a water outlet hole (503), a lifting rod (504), a fixed top plate (505), an oil filtering disc (506), a lifting sliding plate (507), a through groove (508), a back plate (509), a second floating ball (510), a clamping plate (511) and an oil filtering plate (512), the oil filtering tank (501) is fixedly connected to the upper surface of the bilge bottom plate (2), the cover plate (502) is fixedly installed on the top of the oil filtering tank (501), the water outlet hole (503) is formed in one side of the oil filtering tank (501), the lifting rod (504) is fixedly connected to the bottom of the inner cavity of the oil filtering tank (501), the fixed top plate (505) is fixedly connected to the top end of the lifting rod (504), the oil filtering disc (506) is slidingly lifted in the oil filtering tank (501), the lifting sliding plate (507) is fixedly connected to the back side of the oil filtering disc (506), the through groove (508) is formed through the back of the oil filtering disc (506), the back plate (509) is fixedly connected to the back of the oil filtering disc (506), the second floating ball (510) is fixedly connected to the back plate (509), the clamping plate (511) is fixedly connected to the inner walls on both sides of the oil filtering disc (506), and the oil filtering plate (512) is clampedly installed in the clamping plate (511).

2. The passenger ship bilge water collection main of claim 1, characterized in that: The drainage mechanism (4) comprises a drainage head (401), a fixed plate (402), a pressure-sensitive switch (403), a support (404), a pressing rod (405) and a first floating ball (406), the drainage head (401) is arranged at the bottom of the inner cavity of the ship body (1), the fixed plate (402) is fixedly connected to the side wall of the drainage head (401), the pressure-sensitive switch (403) is arranged at the top of the drainage head (401), the support (404) is fixedly connected to the upper surface of the drainage head (401), the pressing rod (405) is rotatably connected to the support (404), and the first floating ball (406) is fixedly connected to the outer end of the pressing rod (405).

3. The passenger ship bilge collection main of claim 1, wherein: A drainage hole (101) is formed in one side of the ship body (1), the upper surface of the bilge bottom plate (2) is fixedly connected with a first pump (102), the water outlet end of the first pump (102) is fixedly connected with a drainage pipe (103), and the water inlet end of the first pump (102) is fixedly connected with a pump water pipe (104).

4. The passenger ship bilge collection main of claim 1, wherein: The ship body (1) is fixedly connected with longitudinal cabin plates (201) at the bottom of the ship cabin, and the ship body (1) is fixedly connected with transverse cabin plates (202) at the bottom of the ship cabin.

5. The passenger ship bilge water collection main of claim 2, wherein: The side wall of the bilge water main (3) is fixedly connected with a water distribution pipe (301), one end of the bilge water main (3) is fixedly connected with a second pump (302), and the water outlet end of the second pump (302) is fixedly connected with a liquid discharge pipe (303).

6. The passenger ship bilge water collection main of claim 1, wherein: The oil filter plate (512) is arranged in front of the through slot (508), the second floating ball (510) floats on the water surface, the front end of the oil filter plate (506) is lower than the water surface, and the lifting slide plate (507) is slidingly connected to the lifting rod (504).

7. The passenger ship bilge water collection main of claim 2 wherein: The top end of the pressing rod (405) is connected with a pressure-sensitive switch (403), the bottom of the liquid suction head (401) is provided with a water suction opening, the bottom of the liquid suction head (401) is not in contact with the bottom of the inner cavity of the ship body (1) and has a gap, and the fixing plate (402) is fixedly connected to the bottom of the inner cavity of the ship body (1).

8. The passenger ship bilge water collection main of claim 5 wherein: One end of the water distribution pipe (301) is fixedly connected to the water outlet end of the top of the liquid suction head (401), one end of the bilge water main (3) is connected with the water inlet end of the second pump (302), and one end of the liquid discharge pipe (303) penetrates through the cover plate (502) and extends to the bottom of the inner cavity of the oil filter tank (501).

9. The passenger ship bilge water collection main of claim 4 wherein: The transverse cabin plate (202) is fixedly connected to the two sides of the longitudinal cabin plate (201).

10. The passenger ship bilge water collection main of claim 3, wherein: The outer end of the drain pipe (103) is inserted into the drain hole (101), and the other end of the pump water pipe (104) is fixedly inserted into the water outlet hole (503).

Citation Information

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