CN-121990105-A - Bilge, ballast and anti-transverse-inclination multifunctional integrated system for ship

CN121990105ACN 121990105 ACN121990105 ACN 121990105ACN-121990105-A

Abstract

The invention discloses a bilge, ballast and anti-transverse-inclination multifunctional integrated system for a ship, which comprises two main pipes and three general pumps, wherein the two main pipes extend along the ship length direction, the head parts and the tail parts of the two main pipes are respectively communicated to form an annular pipeline, the main pipes are provided with valves for controlling opening and closing, the three general pumps are respectively connected to the main pipes through communication pipes, wherein the two general pumps are arranged in a cabin, one general pump is arranged in a head equipment cabin, a check valve is arranged on a bilge water branch pipe, and the main pipes are also connected with a sea water main pipe and a drain pipe for draining water to the outside. The invention obviously reduces the cost, maximizes the equipment utilization rate and energy efficiency, forms redundancy, enhances the reliability of the system and greatly increases the anti-transverse-inclination capability.

Inventors

GAO JING
XIE LIXIN
MA YOUYA
Lin Junge
HUANG ZHIQIAN

Assignees

上海船舶研究设计院

Dates

Publication Date: 20260508
Application Date: 20260212

Claims (10)

1. A bilge, ballast and anti-transverse-inclination multifunctional integrated system for a ship comprises a ballast tank and bilge branch pipes for draining a cargo hold, wherein the ballast tank comprises the anti-transverse-inclination tank, the ballast tank is internally provided with the ballast branch pipes, the bilge branch pipe comprises two main pipes and three general pumps, the two main pipes extend along the ship length direction, the front parts and the tail parts of the two main pipes are respectively communicated to form an annular pipeline, a valve for controlling opening and closing is arranged on the main pipe, the three general pumps are respectively connected to the main pipes through communication pipes, wherein the two general pumps are arranged in a cabin, one general pump is arranged in a head equipment cabin, the ballast branch pipe and the bilge branch pipe arranged on the left side of the ship are connected to the main pipe arranged on the left side, the ballast branch pipe and the bilge branch pipe arranged on the right side of the ship are connected to the main pipe arranged on the right side, the main pipe is also connected with a sea water main pipe and a drain pipe for draining water to the outside, the general pumps can be used for left and right side of the ship through the main pipes through the control valves, the general pumps can be used for filling water into the ballast tank and draining the cargo hold through the main tanks and the ballast water pump can be discharged through the main pipes and the ballast tank.
2. Bilge, ballast and anti-roll multifunctional integrated system for a ship according to claim 1, wherein two check valves are provided on bilge water branches.
3. Bilge, ballast and anti-roll integrated system for a ship according to claim 1, wherein a utility pump provided in the header tank is connected with an emergency power source.
4. The bilge, ballast and anti-roll integrated system for a ship of claim 1, wherein the valves comprise isolation valves respectively provided on the two main pipes, the isolation valves being capable of dividing the bilge, ballast and anti-roll integrated system for a ship into two independently operable sections of a header and a tail.
5. The bilge, ballast and anti-roll integrated system for a ship according to claim 4, wherein two or three utility pumps can be operated in parallel after the isolation valve is closed while transferring ballast water on the same side of the ship to the other side, or isolating a section where a fault occurs in the system.
6. The bilge, ballast and anti-roll multifunctional integrated system for a ship according to claim 1, wherein the ballast tank comprises side ballast tanks respectively arranged at two sides of the ship, the ballast tank further comprises a mid-sole ballast tank, the pipe is removed, the mid-sole ballast tank is arranged at an original pipe position, and when the mid-sole ballast tank is filled with ballast water, a stable height meeting the safety specification can be provided for the ship, so that the side ballast tanks at two sides of the ship are specially used for adjusting the anti-roll water quantity.
7. The bilge, ballast and anti-roll multifunctional integrated system for a ship according to claim 1, wherein the total pump adopts a variable frequency driving mode, the bilge, ballast and anti-roll multifunctional integrated system for the ship further comprises a control module, and the control module receives a roll signal from a ship inclinometer and can form closed loop control by adjusting the number of the total pumps and the rotating speed of the total pump and controlling valves based on the signal and a preset value or data from a loading computer, so that automatic anti-roll is realized.
8. The bilge, ballast and anti-heel multifunctional integrated system for a ship according to claim 1, wherein the ballast water branch pipe is provided with a remote control valve, a valve body of the remote control valve is provided in the ballast tank, and a control part of the remote control valve is provided in the dry tank adjacent to the ballast tank.
9. The bilge, ballast and anti-roll multifunctional integrated system for a ship according to claim 8, wherein the control part of the remote control valve controls the action of the valve body of the remote control valve through a hydraulic line.
10. Bilge, ballast and anti-roll integrated system for a ship according to claim 1, wherein a main pump provided in the cabin and a main pump provided in the header equipment cabin are connected with a sea water main pipe and a drain pipe, respectively.

Description

Bilge, ballast and anti-transverse-inclination multifunctional integrated system for ship Technical Field The invention relates to the technical field of ships, in particular to a bilge, ballast and anti-transverse-inclination multifunctional integrated system for a ship. Background The open multipurpose ship has no cabin cover in the cargo hold and is usually provided with a heavy crane, and two special working conditions are faced in the sailing and operation process, namely, firstly, the cargo hold area is directly exposed and is easy to cause a large amount of seawater to rush in due to heavy rain or upper waves on a deck, so that extremely high requirements are put on rapid removal of bilge water, and secondly, the heavy crane can generate obvious dynamic transverse moment when carrying out cargo loading and unloading, so that serious challenges are formed on the safety of the ship. For the above working conditions, the technical solutions of the ballast water system, the cargo hold bilge water system and the anti-transverse-inclination system which are independently arranged are generally adopted in the ship design field, namely, the ballast water system, the cargo hold bilge water system and the anti-transverse-inclination system are three independent systems. The specific cases of the three independent systems are: 1. A ballast water system. The traditional ballast water system mainly transfers the ballast water among different ballast tanks through the cooperation of ballast pumps, pipelines and valves so as to adjust the trim, the heel and the draft of the ship. As shown in fig. 1, the ballast water system includes a ballast water pump 51, a ballast water main 52, a ballast water branch 53, a valve 54, a control system, and the like. The ballast water pumps 51 are provided in the nacelle, the number of the ballast water pumps 51 is two, the number of the ballast water manifolds 52 is two, the ballast water branch pipes 53 are connected to the ballast water manifolds 52, and the ballast water branch pipes extend from the ballast tanks 55 to the ballast water manifolds. A pipe tie 56 is provided in the midship for receiving and routing piping and valves, taking up a lot of hull space. The seawater header 50 is connected to the ballast header. 2. Cargo hold bilge water system. The cargo hold bilge water system is responsible for draining the accumulated water (such as water leakage, condensed water, etc.) inside the cargo hold out of the outboard side. As shown in fig. 2, the cargo compartment bilge water system includes two bilge water pumps 57, bilge water header pipes 58, bilge water branch pipes 59, and the like. Two bilge pumps 57 are provided, both of which are provided in the nacelle. Bilge water main 58 is one piece. Bilge water branch 59 is located at one end in cargo hold bilge well 60 and is connected at the other end to bilge water main 58. The bilge water branch pipe is provided with a remote control valve 61. 3. An anti-roll system. One or more pairs of side hold-down cabins on both sides of the vessel are typically used as anti-roll cabins. The independent anti-transverse-tilting pump is used for realizing adjustment of ballast water at two sides through matching of the pipeline and the valve, and balancing the dynamic transverse tilting moment of the ship. As shown in fig. 3, the anti-roll system includes one anti-roll pump 62, two anti-roll manifolds 63, a ballast water branch pipe 64, and a plurality of valves 65. Side ballast tanks are employed as anti-roll tanks 66, one end of the ballast water branch pipe is arranged in the anti-transverse-inclination cabin, the other end is connected with the anti-transverse-inclination main pipe. The prior art scheme has the following technical problems: 1. High cost and heavy weight of the empty ship. The three sets of systems (ballast, bilge, anti-roll) require independent piping, pumps, valves and control units, resulting in a large number of devices and complex piping arrangements. The large number of pipes, valves and pump equipment results in a significant increase in material costs and installation man-hours. The pipeline and the valve parts of the three systems are arranged, so that valuable space of the ship body is occupied, the weight of the empty ship of the ship is increased, and the bilge utilization rate and the economy of the ship are affected. 2. The function is single, and the system utilization rate is low. Each system is provided with a separate pump, the initial investment is high, the ballast water system is only used when the floating state of the ship is regulated, the bilge system is used when the cargo hold is filled with water, and the anti-transverse-inclination system is used when the wharf is used for heavy loading. The pump group of each system only serves a single function, and the ballast pump, the bilge pump and the anti-transverse pump are in idle states for a long time under the working condition which is not