CN115476957A - Dirty liquid tank and liquid cargo ship with same - Google Patents

Dirty liquid tank and liquid cargo ship with same Download PDF

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Publication number
CN115476957A
CN115476957A CN202210932221.7A CN202210932221A CN115476957A CN 115476957 A CN115476957 A CN 115476957A CN 202210932221 A CN202210932221 A CN 202210932221A CN 115476957 A CN115476957 A CN 115476957A
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CN
China
Prior art keywords
tank
cabin
cargo
oil
ship
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210932221.7A
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Chinese (zh)
Inventor
张勇
李银涛
刘英良
时永鹏
吴俊�
刘奕谦
陈涛
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708th Research Institute of CSIC
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708th Research Institute of CSIC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 708th Research Institute of CSIC filed Critical 708th Research Institute of CSIC
Priority to CN202210932221.7A priority Critical patent/CN115476957A/en
Publication of CN115476957A publication Critical patent/CN115476957A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B11/00Interior subdivision of hulls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02Separation of non-miscible liquids
    • B01D17/0208Separation of non-miscible liquids by sedimentation
    • B01D17/0214Separation of non-miscible liquids by sedimentation with removal of one of the phases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/12Auxiliary equipment particularly adapted for use with liquid-separating apparatus, e.g. control circuits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/06Refuse discharge, e.g. for ash
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B2025/087Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid comprising self-contained tanks installed in the ship structure as separate units

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning In General (AREA)

Abstract

The invention discloses a dirty liquid tank and a cargo ship with the same, wherein the dirty liquid tank comprises at least two front tanks and at least two rear tanks, and any two adjacent front tanks are separated by a longitudinal bulkhead; any two adjacent rear cabins are separated by a longitudinal watertight bulkhead; any adjacent front cabin and any adjacent rear cabin are separated by a transverse partition wall; the bottom of the transverse partition wall is provided with a communication valve, each front cabin is communicated with a cargo oil cabin through a cargo oil pipe, the cargo oil pipe is connected with a cargo oil pump, each rear cabin is connected with a ship arranging outer pipe through a pipe system, the ship arranging outer pipe is connected with an oil discharge monitoring system, the oil discharge monitoring system is connected with a drain port of the dirty liquid cabin, and the oil discharge monitoring system is connected with the corresponding rear cabin through a return pipeline; the liquid cargo ship with the dirty liquid tank comprises a liquid cargo ship body, wherein a cargo oil tank and the dirty liquid tank are arranged on the liquid cargo ship body. The dirty liquid tank is beneficial to discharging the internal liquid, and the construction cost is reduced; can realize oil-water separation, reduce the treatment cost of ship oil wastewater discharge shore and reduce the ship operation cost.

Description

Dirty liquid tank and liquid cargo ship with same
Technical Field
The invention relates to a dirty liquid tank and a liquid cargo ship with the same, and belongs to the technical field of ships.
Background
According to the requirements of the international maritime organization, the cargo tanker needs to be provided with a dirty liquid tank and is provided with related equipment for storing an oil-water mixture discharged after the cargo oil tank is washed and delivering the oil-water mixture to a receiving device after the oil-water mixture reaches a wharf.
Typically, the dirty-tank W of a tanker is arranged at the rear of the cargo tank 4 (as shown in fig. 1) in a deep-tank version, and the interior of the dirty-tank W is a complete tank without divided walls, provided with tank ventilation, measuring, etc. And residual liquid after the other liquid cargo tanks are washed is transferred to a dirty liquid tank W through a cargo oil pump and a pipeline. Generally, the residual liquid with a small liquid cargo content can be discharged into the sea after meeting the monitoring requirement, while the residual liquid with a large liquid cargo content in the dirty liquid tank W cannot be directly discharged into the sea, and the residual liquid mixture needs to be conveyed to a receiving device on the shore after the ship sails to the wharf, and after the receiving device on the wharf, the oil-water mixture needs to be further processed (such as oil-water separation and the like) and then discharged.
The current sump arrangement has the following problems:
1. the dirty liquid tank is an integral liquid tank, the interior of the dirty liquid tank is not divided, oil and water in the tank coexist, the oil and the water are mixed during discharging and are difficult to separate, and the sea drainage condition is difficult to meet in the navigation process, so that the set dirty liquid tank is large, and the volume of the liquid tank is relatively reduced;
2. after the oil-water mixture in the cabin is conveyed to the wharf receiving device, the receiving device needs to further perform oil-water separation treatment, and the operation is complicated;
3. the dirty liquid cabin is a deep cabin, the large depth causes a large liquid pressure head, the requirements on the capacity and pressure of a pump set, a valve group and a pipeline are high, the cost is high, and liquid cleaning and discharging are not facilitated.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to make the dirty liquid cabin satisfy the sea drainage condition in the navigation process and how to reduce the occupation of the dirty liquid cabin to the cargo hold area.
In order to solve the technical problem, the technical scheme of the invention is to provide a dirty liquid tank which is characterized by comprising at least two front tanks and at least two rear tanks, wherein any two adjacent front tanks are separated by a longitudinal tank wall; any two adjacent rear cabins are separated by a longitudinal watertight bulkhead; any adjacent front cabin and any adjacent rear cabin are separated by a transverse partition wall;
the bottom of the transverse dividing wall is provided with a communicating valve, and at least one communicating valve is correspondingly arranged between each front cabin and each rear cabin;
each front cabin is communicated with a cargo oil cabin through a cargo oil pipe, the cargo oil pipe is connected with a cargo oil pump, each rear cabin is connected with an outer pipe of a ship arrangement through a pipe system, the outer pipe of the ship arrangement and the cargo oil pipe are respectively connected with the cargo oil pump, an oil discharge monitoring system is connected on the outer pipe of the ship arrangement, the oil discharge monitoring system is connected with a discharge port of a dirty liquid cabin, and the oil discharge monitoring system is connected with the corresponding rear cabin through a return pipeline; the piping system is provided with a remote control valve;
when the result of monitoring the discharged liquid by the oil discharge monitoring system meets the requirement, the outer pipe of the ship discharging is communicated with the discharge port of the dirty liquid tank, and the outer pipe of the ship discharging is not communicated with the return pipeline; when the result of monitoring the discharged liquid by the oil discharge monitoring system does not meet the requirement, the outer pipe of the ship is not communicated with the discharge port of the dirty liquid tank, and the outer pipe of the ship is communicated with the return pipeline.
Preferably, the top of the transverse partition wall is provided with an air communicating pipeline, and at least one air communicating pipeline is correspondingly arranged between each front cabin and each rear cabin.
Preferably, the longitudinal bulkhead is arranged at the middle part of the dirty liquid tank; the transverse dividing wall is arranged at the middle rear part of the dirty liquid tank.
Preferably, the longitudinal bulkhead is of a flat plate or a groove type structure; the transverse partition wall is of a flat plate or groove-shaped structure.
Preferably, each of said front and rear compartments is connected to a venting means for automatically releasing the gas pressure in the front and rear compartments.
Preferably, the bottom of each front cabin and each rear cabin is provided with a heating coil.
Preferably, each front cabin and each rear cabin are respectively provided with a suction port; the front cabin and the rear cabin are respectively provided with a set of liquid level remote measuring device.
Preferably, the upper parts of the front cabin and the rear cabin are respectively provided with a cabin washing device; each front cabin is provided with a front cabin cover, and each rear cabin is provided with a rear cabin cover.
A liquid cargo ship with a dirty liquid tank comprises a liquid cargo ship body, wherein a cargo oil tank is arranged on the liquid cargo ship body, and the liquid cargo ship is characterized by further comprising the dirty liquid tank, the dirty liquid tank is arranged in the area below a main deck at the head or the tail of a cargo tank area or in the area above the main deck and is embedded in the adjacent cargo oil tank, the bottom of the dirty liquid tank is not in contact with the inner bottom of the cargo tank area, and the cargo oil tank is arranged between the lower part of the dirty liquid tank and the inner bottom of the cargo tank area; the dirty liquid tank is surrounded by an isolation empty tank, a pump tank, a ballast water tank or a cargo oil tank.
Preferably, when the ventilating device, the washing device or the cover of the cargo oil tank is arranged in the range of the dirty liquid tank, the ventilating device, the washing device or the cover is communicated with the cargo oil tank through the watertight protection pipe, the watertight protection pipe penetrates through the dirty liquid tank, and the outer wall of the watertight protection pipe is in sealing connection with the joint of the dirty liquid tank.
Compared with the prior art, the invention has the following advantages:
1. the dirty liquid cabin is arranged in a flat type, the water pressure head is small, the discharge of internal liquid is facilitated, the requirements on the capacity and the pressure of a pump set, a valve bank and a pipeline are reduced, and the construction cost is reduced;
2. the dirty liquid cabin is divided into a front cabin and a rear cabin, the rear cabin is set into a water purification cabin by technical means of arranging a communication valve, an air hole and the like, oil-water separation can be realized, and a large amount of cabin washing water which is subjected to oil-water separation twice and meets the requirement of oil discharge monitoring is discharged in the process of sailing, so that the volume requirement on the dirty liquid cabin is reduced, the workload of a wharf on processing oil-water mixtures is reduced, the processing cost of ship oil and water pollution discharging shore is reduced, and the ship operation cost is reduced;
3. if the dirty liquid cabin is arranged above the deck surface, the occupation of the dirty liquid cabin on the cargo compartment area can be reduced, and the utilization rate of the cargo compartment area is increased.
Drawings
FIG. 1 is a schematic diagram of a conventional design structure of a dirty liquid tank in a conventional liquid cargo ship
FIG. 2 is a schematic illustration of a tanker of the sump type;
FIG. 3 is an enlarged schematic view of the sump portion of FIG. 2;
FIG. 4 is a top view of FIG. 3 (the top of the figure is the left side, and the bottom is the right side);
fig. 5 is a perspective view of the left side view of fig. 3.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The invention provides a sewage tank, which comprises a left front tank 1, a right front tank 1, a left rear tank 2, a right rear tank 2 and a transverse dividing wall 3,
the structural style of the dirty liquid tank is designed as follows:
1) A longitudinal bulkhead 9 is arranged in the middle of the dirty liquid cabin, the dirty liquid cabin is divided into a left cabin and a right cabin, namely the left front cabin 1 and the right front cabin 1 are separated by the longitudinal bulkhead 9, and the left rear cabin 2 and the right rear cabin 2 are separated by the longitudinal watertight bulkhead 9; the longitudinal bulkheads 9 can be of flat or channel type construction;
2) A transverse partition wall 3 is arranged at the middle rear part of each sewage tank to partition the front tank 1 and the rear tank 2, and the transverse partition wall 3 can be of a flat plate or groove type structure; the top of the transverse partition wall 3 is provided with a plurality of air communicating pipelines 7 (at least one air communicating pipeline 7 corresponds to each space between the front cabin 1 and the rear cabin 2) for air circulation between the front cabin 1 and the rear cabin 2; the bottom of the transverse dividing wall 3 is provided with a communication valve 8 which can be opened or closed as necessary for the liquid to flow back and forth between the front chamber 1 and the rear chamber 2. If the cargo density is greater than water, the communication valve 8 may be disposed further upward as appropriate.
3) The reinforcing structures 10 of the front 1 and rear 2 tanks of the sump may optionally be arranged in or outside the sump.
Wherein the longitudinal bulkhead 9 is a longitudinal watertight bulkhead; the transverse dividing wall 3 is a transverse watertight dividing wall.
Generally, the volume of the front cabin 1 is larger than that of the rear cabin 2, and the rear cabin 2 is used for collecting and storing the washing water with higher density and lower liquid-containing cargo quantity after the front cabin 1 is stood still.
The system design of the dirty liquid tank is as follows:
the system of the dirty liquid tank mainly comprises a ventilating device 12, a heating coil 13, a ship-arranging outer pipe 14, a cargo oil pipe 15, a tank-washing device 16, a front tank cover 17, a rear tank cover 18 and the like.
The ventilating device 12 is respectively arranged above each front cabin 1 and each rear cabin 2, is close to the top of the middle part of each front cabin 1 and each rear cabin 2, is directly connected with the front cabin 1 and the rear cabin 2, and automatically releases air in the front cabin 1 and the rear cabin 2 after reaching a certain pressure;
the heating coil 13 is respectively arranged at the bottom of each front cabin 1 and each rear cabin 2; the dirty liquid cabin can store the washing water heated by the washing cabin heater, and the washing water in the dirty liquid cabin can be heated by the heating coil 13 in the dirty liquid cabin according to the requirement, so that the temperature is further raised, and the washing water is used for providing washing water with a certain temperature for the washing cabin pump.
The outer tube 14 and the cargo oil tube 15 of the ship are respectively connected with a centralized or distributed cargo oil pump 20, the outer tube 14 of the ship is connected with an oil discharge monitoring system 22, the cargo oil tube 15 is communicated with a front cabin 1 and a rear cabin 2 (the cargo oil tube 15 is provided with two valves which are respectively a front cabin valve and a rear cabin valve and are used for respectively controlling the communication of the cargo oil tube 15 with the front cabin 1 and the rear cabin 2, when the front cabin valve is opened, the rear cabin valve is closed, and vice versa), the front cabin 1 and the rear cabin 2 are respectively provided with a suction port 24 (the suction port 24 is an opening at the end part of the cargo oil tube 15; the suction port 24 is a conventional configuration on the ship), the piping of each rear cabin 2 is respectively connected with the outer tube 14 of the ship, and a discharge port 11 of a dirty liquid cabin is arranged near the cargo oil tank 4; the piping system is communicated with the whole ship cargo oil piping system, and a manual valve or a remote control valve 19 is arranged at a proper position;
the cabin washing device 16 is respectively arranged at the upper parts of the front cabin 1 and the rear cabin 2 and is used for washing the front cabin 1 and the rear cabin 2;
the front cabin 1 and the rear cabin 2 are respectively provided with corresponding cabin covers (a front cabin cover 17 on the front cabin 1 and a rear cabin cover 18 on the rear cabin 2) at proper positions, and the cabin covers can be positioned on the cabin top or front, rear, left and right surrounding walls; a set of liquid level telemetering devices 21 are respectively arranged on the front cabin 1 and the rear cabin 2, and the liquid level telemetering devices 21 are conventional on a ship and are used for automatically measuring the liquid level height.
The ventilating device, the tank cleaning device, the tank cover and the like of the cargo oil tank 4 are prevented from being arranged in the range of the dirty liquid tank; if this cannot be avoided (i.e. if an opening to the top weather deck is required for the cargo tank 4 below the dirty-liquid tank), a watertight protection pipe 23 can be provided locally in the dirty-liquid tank to arrange the relevant equipment. Namely, the ventilating device, the tank washing device, the tank cover and the like are communicated with the cargo oil tank 4 through the watertight protection pipe 23, the watertight protection pipe 23 penetrates through the dirty liquid tank, and the outer wall of the watertight protection pipe 23 is hermetically connected with the joint of the dirty liquid tank.
In the present embodiment, a front hatch 17 is provided above each front hatch 1, and a rear hatch 18 is provided at the rear end wall of each rear hatch 2. The dirty liquid tank can be used as a cargo oil tank.
The invention provides a liquid cargo ship with a dirty liquid tank, which comprises a liquid cargo ship body, wherein an oil cargo tank 4 and a dirty liquid tank are arranged on the liquid cargo ship body, the position of the dirty liquid tank can be arranged in the area below a main deck 6 at the head part or the tail part of a cargo hold area and is embedded in the adjacent oil cargo tank 4, the bottom of the dirty liquid tank is not contacted with the inner bottom of the cargo hold area, and the oil cargo tank 4 is arranged between the lower part of the dirty liquid tank and the inner bottom of the cargo hold area; or may be located in the relevant area above the main deck 6. The periphery of the dirty liquid tank is surrounded by an isolation empty tank, a pump tank, a water ballast tank 5 or a cargo oil tank 4, and can also be directly close to an open area, so that oily sewage is prevented from leaking to the outside; the shape of the dirty liquid cabin is a regular polyhedron with a large plane area and a low height, namely a flat shape structure.
The working principle of the invention is as follows:
after the cargo oil tank 4 is subjected to tank washing operation, the oil-water mixture after tank washing is delivered into each front tank 1 of the dirty liquid tank through the cargo oil pump 20 via the cargo oil pipe 15. After the oil-water mixture is completely transferred to the front cabin 1, the cargo oil pump 20 is turned off and the front cabin 1 is left for a while to perform a first oil-water separation. After the oil and water are layered, the water with lower oil dirt and higher density is precipitated at the lower part of the front cabin 1. At this time, the communication valve 8 at the bottom of the transverse dividing wall 3 is opened, so that a proper amount of water at the lower part of the front chamber 1 flows to the rear chamber 2 through the communication valve 8, and after the liquid level of the rear chamber 2 reaches balance, the communication valve 8 is closed. At this time, the liquid in the rear compartment 2 is water having a low oil content. Standing for a period of time for second oil-water separation.
And (3) opening a remote control valve 19 positioned in the rear cabin 2, discharging the liquid in the rear cabin 2 to the ship discharging outer pipe 14 by using a cargo oil pump 20 or a sweeping cabin pump, monitoring the discharged liquid by using an oil discharge monitoring system 22 on the ship discharging outer pipe 14, discharging the discharged liquid to the outside of the ship through a sewage cabin discharge port 11 when the discharge requirement is met, and returning the discharged liquid to the rear cabin 2 through a return pipeline 25 when the discharge requirement is not met. Therefore, the liquid in the waste liquid tank is discharged.

Claims (10)

1. The dirty liquid tank is characterized by comprising at least two front tanks (1) and at least two rear tanks (2), wherein any two adjacent front tanks (1) are separated by a longitudinal tank wall (9); any two adjacent rear cabins (2) are separated by a longitudinal watertight bulkhead (9); any adjacent front cabin (1) and any adjacent rear cabin (2) are separated by a transverse partition wall (3);
the bottom of the transverse dividing wall (3) is provided with a communicating valve (8), and at least one communicating valve (8) is correspondingly arranged between each front cabin (1) and each rear cabin (2);
each front cabin (1) is communicated with a cargo oil cabin (4) through a cargo oil pipe (15), the cargo oil pipe (15) is connected with a cargo oil pump (20), each rear cabin (2) is connected with an outer tube (14) of a ship through a piping system, the outer tube (14) of the ship and the cargo oil pipe (15) are respectively connected with the cargo oil pump (20), the outer tube (14) of the ship is connected with an oil discharge monitoring system (22), the oil discharge monitoring system (22) is connected with a drain outlet (11) of a dirty liquid cabin, and the oil discharge monitoring system (22) is connected with the corresponding rear cabin (2) through a return pipeline (25); a remote control valve (19) is arranged on the pipe system;
when the result of monitoring the discharged liquid by the oil discharge monitoring system (22) meets the requirement, the outer tube (14) of the ship is communicated with the discharge port (11) of the dirty liquid tank, and the outer tube (14) of the ship is not communicated with the return pipeline (25); when the result of the monitoring of the discharged liquid by the oil discharge monitoring system (22) does not meet the requirement, the outer ship discharging pipe (14) is not communicated with the discharge port (11) of the dirty liquid tank, and the outer ship discharging pipe (14) is communicated with the return pipeline (25).
2. A tank according to claim 1, wherein the top of the transverse dividing wall (3) is provided with a gas communication pipe (7), and at least one gas communication pipe (7) is correspondingly arranged between each front tank (1) and each rear tank (2).
3. A sump according to claim 1, wherein the longitudinal bulkhead (9) is arranged in the immediate middle of the sump; the transverse dividing wall (3) is arranged at the middle rear part of the dirty liquid tank.
4. A tank according to claim 1, wherein the longitudinal bulkhead (9) is of a flat or channel configuration; the transverse dividing wall (3) is of a flat plate or groove-shaped structure.
5. A soil chamber according to claim 1 wherein each of said front (1) and rear (2) chambers is connected to a venting means (12) for automatically releasing the gas pressure in the front (1) and rear (2) chambers.
6. A sump according to claim 1, wherein the bottom of each of the front (1) and rear (2) compartments is provided with a heating coil (13).
7. A soil chamber as claimed in claim 1 wherein each of said front (1) and rear (2) chambers is provided with a suction port (24); the front cabin (1) and the rear cabin (2) are respectively provided with a set of liquid level telemetering device (21).
8. A soil chamber as claimed in claim 1 wherein, the upper parts of each of said front (1) and rear (2) chambers are provided with respective washing means (16); each front cabin (1) is provided with a front cabin cover (17), and each rear cabin (2) is provided with a rear cabin cover (18).
9. A tanker with a dirty liquid tank, comprising a tanker body, on which a cargo tank (4) is arranged, characterized in that the tanker further comprises a dirty liquid tank according to any of claims 1 to 8, which is located in an area below a main deck (6) at the head or tail of the cargo tank area or in an area above the main deck (6) and is embedded in an adjacent cargo tank (4), the bottom of the dirty liquid tank does not contact the inner bottom of the cargo tank area, and the cargo tank (4) is located between the bottom of the dirty liquid tank and the inner bottom of the cargo tank area; the dirty liquid tank is surrounded by an isolation empty tank, a pump tank, a ballast water tank (5) or a cargo oil tank (4).
10. The tanker with a sump according to claim 9, wherein the venting means, the washing means or the cover of the cargo tank (4) is connected to the cargo tank (4) by a watertight protective tube (23) when the venting means, the washing means or the cover is located within the sump, the watertight protective tube (23) penetrates the sump, and the outer wall of the watertight protective tube (23) is sealingly connected to the connection of the sump.
CN202210932221.7A 2022-08-04 2022-08-04 Dirty liquid tank and liquid cargo ship with same Pending CN115476957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210932221.7A CN115476957A (en) 2022-08-04 2022-08-04 Dirty liquid tank and liquid cargo ship with same

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Application Number Priority Date Filing Date Title
CN202210932221.7A CN115476957A (en) 2022-08-04 2022-08-04 Dirty liquid tank and liquid cargo ship with same

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CN115476957A true CN115476957A (en) 2022-12-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116729545A (en) * 2023-06-25 2023-09-12 南通中远海运船务工程有限公司 Oil storage system of crude oil ship
CN116834892A (en) * 2023-06-25 2023-10-03 南通中远海运船务工程有限公司 Cargo oil tank arrangement structure of crude oil ship

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116729545A (en) * 2023-06-25 2023-09-12 南通中远海运船务工程有限公司 Oil storage system of crude oil ship
CN116834892A (en) * 2023-06-25 2023-10-03 南通中远海运船务工程有限公司 Cargo oil tank arrangement structure of crude oil ship
CN116729545B (en) * 2023-06-25 2024-05-14 南通中远海运船务工程有限公司 Oil storage system of crude oil ship

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