WO2018214267A1

WO2018214267A1 - Seawater chamber structure of ship

Info

Publication number: WO2018214267A1
Application number: PCT/CN2017/093665
Authority: WO
Inventors: 汪建华
Original assignee: 广船国际有限公司
Priority date: 2017-05-25
Filing date: 2017-07-20
Publication date: 2018-11-29
Also published as: CN107140115B; CN107140115A

Abstract

A seawater chamber structure of a ship, comprising an upper layer seawater chamber (1) and a lower layer seawater chamber under same. A heating mechanism is provided in the upper layer seawater chamber (1). A separator (15) is provided in the lower layer seawater chamber. The lower layer seawater chamber is divided into a first lower layer seawater chamber (2) and a second lower layer seawater chamber (3) by the separator (15). The first lower layer seawater chamber (2) communicates with a water suction header pipe (9). A water inlet grating (6) is provided at the chamber wall at the side of the second lower layer seawater chamber (3) away from the first lower layer seawater chamber (2). The first lower layer seawater chamber (2) and the second lower layer seawater chamber (3) separately communicate with the upper layer seawater chamber (1). The seawater chamber structure of a ship can effectively prevent ice cakes from blocking a seawater pipeline system, and thus can provide safety guarantee for ship sailing in icy zones.

Description

Ship seawater tank structure

Technical field

The invention relates to the technical field of ships, in particular to a ship cabin structure.

Background technique

As the global climate warms, the Arctic Ocean sea ice is accelerating and melting. The Arctic region's rich resources, important strategic locations, and increasingly smooth Arctic waterways have caused more and more ships to travel between the polar regions in recent years. The future development of the polar regions will become a new stage for big countries to compete.

Due to the special climate in the polar regions, there are a lot of ice floating on the sea all the year round. Compared with the conventional ship type, the ships sailing in the polar regions need to have comprehensive anti-freeze and anti-ice capabilities, in terms of hull structure, piping system and other ancillary equipment. Need a special design. The existing conventional ship type marine tank structure usually includes a seawater tank through which the seawater enters the interior of the seawater tank through the grille door, and then the seawater intake manifold is used to pump water directly from the seawater tank for use by the various systems of the ship. However, for ships in polar navigation, the hull is in direct contact with the ice during the voyage, and the sea tank is directly connected to the seawater intake manifold. When the ship is sailing in the ice area, ice cubes will enter the sea tank, and the ice will be separated by sea water. The inhalation of seawater into the main pipe of the tank will cause blockage of the pipelines of the ship and affect the normal operation of the ship system. In severe cases, it will cause equipment failure, which will cause serious accidents such as ship shutdown and suspension.

Summary of the invention

The object of the present invention is to provide a ship's seawater tank structure, which can effectively prevent ice from destroying the seawater supply system and provide safety for ships sailing in the ice area.

To achieve this, the present invention employs the following technical solutions:

Provided is a marine seawater tank structure comprising an upper seawater tank and a lower seawater tank located therebelow, wherein the upper seawater tank is provided with a heating mechanism, and the lower seawater tank is provided with a partition, the partition The lower seawater tank is divided into a lower first seawater tank and a lower second seawater tank, the lower first seawater tank is in communication with the water absorption manifold, and the lower second seawater tank is disposed away from a side bulkhead of the lower first seawater tank There is a water inlet grille, and the lower first seawater tank and the lower second seawater tank are respectively connected to the upper seawater tank.

As a preferred technical solution of the marine water tank structure, the heating mechanism comprises a first heating device disposed at a draft position near the vessel.

As a preferred technical solution of the marine water tank structure, the first heating device is a heating pipe, one end of the heating pipe is connected to one side wall of the upper seawater tank, and the other end is extended to be close to The other side wall opposite the side wall.

As a preferred technical solution of the marine water tank structure, the first heating device includes a rotating shaft and a heating piece disposed on an outer circumference of the rotating shaft, and the rotating shaft is coupled to the driving mechanism.

As a preferred technical solution of the marine water tank structure, the upper end of the partition is lower than the draft position of the ship.

As a preferred technical solution of the marine water tank structure, a water inlet channel is disposed between the upper seawater tank and the lower second seawater tank, and the upper seawater tank and the lower first seawater tank There is a water outlet between them.

As a preferred technical solution of the marine water tank structure, a filter screen is arranged on a side of the water outlet channel adjacent to the upper seawater tank.

As a preferred technical solution of the marine water tank structure, the heating mechanism further includes a second heating device disposed adjacent to the water outlet channel.

As a preferred technical solution of the marine water tank structure, the invention further includes a biological filtering device. One end of the biological filtration device is in communication with the water absorption manifold, and the other end is connected to a water pump.

As a preferred technical solution of the marine water tank structure, the water inlet end and the water outlet end of the biological filter device are respectively communicated with the water absorption manifold through a nozzle head, and the nozzle head is provided with a regulating valve.

The invention has the beneficial effects that the ship seawater tank structure according to the invention can separate the ice block and the sea water through the upper seawater tank and the lower seawater tank, and at the same time, the separated ice cube is melted by the heating mechanism, thereby effectively preventing the ice block from entering. In the pipeline system, to avoid the blockage of the ship's pipeline system and ensure the safety of the navigation of the ship in the ice zone. The water inlet grille can block large ice floes, floating objects and marine organisms in the sea from outside the cabin, avoiding the blockage of the piping system into the water main. By setting the upper seawater tank and the lower seawater tank, the density of ice is lighter than that of seawater, and the ice and seawater are separated from the lower seawater tank, and the ice water containing no ice cubes is sucked into the water absorption manifold. At the same time, the heating mechanism disposed in the upper seawater tank can melt the ice layer to avoid the danger that the ice block in the upper seawater tank is thicker and thicker in the process of water injection.

DRAWINGS

The invention will now be described in further detail with reference to the drawings and embodiments.

1 is a schematic structural view of a marine water tank structure according to an embodiment.

In the picture:

1. Upper seawater tank; 2. Lower first seawater tank; 3. Lower second seawater tank; 4. Inlet water passage; 5. Water outlet passage; 6. Inlet grille; 7. Heating pipe; 8. Biological filter device 9, water absorption manifold; 10, mounting seat; 11, regulating valve; 12, flange; 13, the first nozzle; 14, the second nozzle; 15, the partition.

detailed description

The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Embodiment 1:

As shown in FIG. 1 , in the present embodiment, a ship seawater tank structure according to the present invention comprises an upper seawater tank 1 and a lower seawater tank below which a heating mechanism is arranged in the upper seawater tank 1. A partition 15 is disposed in the lower seawater tank, and the partition 15 divides the lower seawater tank into a lower first seawater tank 2 and a lower second seawater tank 3, the lower first seawater tank 2 and the water absorption manifold 9 Connected, the lower second seawater tank 3 is disposed away from the side wall of the lower first seawater tank 2 with a water inlet grille 6, the lower first seawater tank 2, and the lower second seawater tank 3 They are respectively connected to the upper seawater tank 1.

The water inlet grille 6 can block large ice floes, floating objects and marine life in the sea outside the cabin from the cabin, allowing only small volume of ice to pass through the water inlet grille 6 and into the lower second seawater. In compartment 3, avoid obstruction of piping in the cabin. The seawater with ice cubes enters the upper seawater tank 1 from the lower first seawater tank 2. Since the density of ice is less than the density of seawater, the ice cubes enter the seawater tank with the seawater, and the ice cubes from the lower second seawater. The position of the cabin 3 communicating with the upper seawater tank 1 moves in the direction of the ship's draft position of the upper layer seawater tank 1 and accumulates at the draft position of the ship to form an ice layer, and the seawater without the ice block is subjected to the external pumping pump. The lower first seawater tank 2 and the water suction main pipe 9 are drawn into the pipeline system of the ship to prevent the ice block from being sucked into the water suction main pipe 9 to cause the pipe to be blocked, thereby ensuring the safety of the equipment inside the ship and the internal pipe of the ship. At the same time, the embodiment can melt the ice layer by using the heating mechanism disposed in the upper seawater tank 1 to prevent the ice layer in the upper seawater tank 1 from accumulating thicker during the water injection process, and avoiding the ice block blocking the inside of the ship. The various pipes ensure the safe navigation of the ship in the ice zone.

Wherein the heating mechanism comprises a first heating device disposed at a draft position near the vessel. Locating the first heating device near the draft position of the vessel, enabling the first heating device and the water level The direct contact of the ice layer at the location speeds up the melting of the ice, effectively avoiding the thicker and thicker layers of ice during the water injection process.

In order to be able to fix the first heating device to the draft position of the vessel, the first heating device is connected to the side wall of the upper seawater tank 1.

Preferably, the first heating device is a heating pipe 11, and one end of the heating pipe 11 is connected to one side wall of the upper seawater tank 1, and the other end extends to the other side wall opposite to the side wall, and is heated. The tube 11 is extended as much as possible without hindering the floating of the ice to increase the rate of melting of the ice.

In the present embodiment, the upper end of the partition 15 is lower than the draft position of the vessel to prevent the ice cube from being drawn into the lower first seawater tank 2 together with the seawater.

Preferably, the volume of the first seawater tank 2 is smaller than the volume of the second seawater tank 3 to increase the speed at which seawater enters into the upper seawater tank 1, thereby increasing the speed of ice floating.

In order to facilitate the circulation of the seawater, a water inlet passage 4 is provided between the upper seawater tank 1 and the lower second seawater tank 3, and the outlet water is disposed between the upper seawater tank 1 and the lower first seawater tank 2 Channel 5. The seawater with ice cubes enters the lower second seawater tank 3 through the water inlet grille 6, and enters the upper seawater tank 1 through the water inlet passage 4. The seawater below the ice layer enters the upper first seawater tank 2 from the upper seawater tank 1 through the water outlet passage 5.

Among them, the water inlet passage 4 and the water outlet passage 5 may be set to be plural according to actual needs. In the present example, two of the water inlet passage 4 and the water outlet passage 5 are provided.

As a preferred technical solution in the embodiment, the lower end of the sidewall of the lower first seawater tank 2 is provided with a pipe hole, and the water absorption manifold 9 communicates with the lower first seawater tank 2 through the pipe hole. A sealant is disposed between the pipe hole and the water absorption manifold 9. By providing a sealant, water leakage between the pipe hole and the water suction pipe 9 can be prevented.

When the water suction main pipe 9 absorbs water, the upper seawater tank 1 is accelerated to avoid the water absorption speed being too fast. The seawater in the middle passes through the velocity of the water outlet passage 5, causing a small amount of ice in the ice layer to be sucked into the lower first seawater tank 2, and the outlet passage 5 is provided with a filter near the side of the upper seawater tank 1 network. The ice is filtered by the filter so that the ice is blocked on the side of the outlet passage 5 close to the upper seawater tank 1, further preventing the ice from blocking the piping system of the vessel.

As a preferred technical solution of the seawater tank structure of the ship, the water inlet passage 4 is provided with an inlet water control valve, and the water outlet passage 5 is provided with an outlet water control valve. The water inlet control valve can control the speed of seawater passing from the lower first seawater tank 2 through the upper seawater tank 1; the water outlet control valve can control the speed of seawater below the ice layer from the upper seawater tank 1 into the lower first seawater tank 2. When the ship needs to be repaired, the water inlet control valve and the water outlet control valve can be closed separately for easy maintenance.

In order to avoid clogging the water outlet passage 5 which is retained by a small amount of ice on the filter screen, the heating mechanism further comprises a second heating device disposed adjacent to the water outlet passage 5. With this design, the second heating device can be used to melt the ice on the filter.

At the same time as the water inlet is injected, the local aquatic organisms also enter the lower seawater tank, and then enter the ship's pipeline system through the water suction main pipe 9, until the ballast water is discharged to the destination sea area after the ship's voyage ends. Ballast water follows the ship from one place to the ground, causing the spread of harmful aquatic organisms and pathogens. In order to prevent the occurrence of the above phenomenon, the marine water tank device of the present embodiment further includes a biological filter device 8, one end of which is in communication with the water suction manifold 9 and the other end of which is connected to a water pump. The biological filtration device 8 filters and sterilizes the seawater sucked into the water absorption manifold 9 to prevent harmful aquatic organisms and pathogens from being transmitted through the ballast water, thereby avoiding pollution of marine organisms, and also filtering sediment in the seawater to prevent sedimentation. Ship piping system. In the present embodiment, the biological filter device 8 is mounted inside the cabin through the mount 10.

In this embodiment, the water inlet end and the water outlet end of the biological filter device 8 are respectively communicated with the water absorption manifold 9 through a nozzle head, and the nozzle head is provided with a regulating valve. Specifically, as shown in FIG. 1, the living The material filtering device 8 includes a first nozzle head 13 disposed at a water inlet end thereof and a second nozzle head 14 disposed at a water outlet end thereof, the first nozzle head 13 being coupled to the water suction manifold 9 through a flange 12, the The second nozzle head 14 is connected to the pump.

Preferably, the first nozzle head 13 and the second nozzle head 14 are each provided with a regulating valve 11. The filter water flow rate through which the seawater passes can be controlled by the regulating valve 11.

In the marine water tank structure of the present invention, the water inlet grille 6 adopts one or more combinations of elliptical, circular or square. Wherein, the water inlet grille 6 through bolt is connected to the peripheral portion of the side wall of the opening.

Embodiment 2:

This embodiment is basically the same as Embodiment 1, except that the first heating device includes a rotating shaft and a heating piece disposed on an outer circumference of the rotating shaft, the rotating shaft is perpendicular to a horizontal plane and connected to the driving mechanism. The heating piece in this embodiment is mounted in the upper seawater tank 1 through a rotating shaft, and is driven to rotate by a driving mechanism to accelerate the melting speed of the ice layer.

Preferably, the heating sheet is a blade spaced apart from the outer circumference of the rotating shaft, the blade is parallel to the horizontal plane, and the heating sheet stirs the ice layer to play the role of crushing ice to further accelerate the melting speed of the ice layer. .

In the description herein, it is to be understood that the terms "first" and "second" are used only to distinguish between the description and have no special meaning.

It is to be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles of the invention, and any changes or substitutions that are readily apparent to those skilled in the art are within the scope of the presently disclosed technology. All should be covered by the scope of the present invention.

Claims

A marine seawater tank structure, comprising: an upper seawater tank and a lower seawater tank located therebelow, wherein the upper seawater tank is provided with a heating mechanism, and the lower seawater tank is provided with a partition, the partition Dividing the lower seawater tank into a lower first seawater tank and a lower second seawater tank, the lower first seawater tank communicating with a water absorption manifold, the lower second seawater tank being away from a side tank of the lower first seawater tank A water inlet grille is disposed on the wall, and the lower first seawater tank and the lower second seawater tank are respectively connected to the upper seawater tank.
The marine water tank structure of claim 1 wherein said heating mechanism comprises a first heating device disposed adjacent to a draft position of the vessel.
The marine water tank structure according to claim 2, wherein the first heating device is a heating pipe, one end of the heating pipe is connected to a side wall of the upper seawater tank, and the other end is extended to be close to The other side wall opposite the side wall.
The marine water tank structure according to claim 2, wherein said first heating means comprises a rotating shaft and a heating piece disposed on an outer circumference of said rotating shaft, said rotating shaft being perpendicular to a horizontal plane and connected to the driving mechanism.
The marine water tank structure of claim 1 wherein the upper end of the partition is lower than the draft position of the vessel.
The marine water tank structure according to claim 1, wherein a water inlet passage is provided between the upper seawater tank and the lower second seawater tank, and the upper seawater tank and the lower first seawater tank There is a water outlet between them.
The marine water tank structure according to claim 6, wherein a filter screen is disposed on a side of the water outlet passage adjacent to the upper seawater tank.
A marine water tank structure according to claim 6, wherein said heating mechanism further comprises a second heating means disposed adjacent said water outlet passage.
The marine water tank structure according to any one of claims 1 to 8, further comprising a biological filtration device, one end of which is in communication with the water absorption manifold and the other end of which is connected to the water pump.
The marine water tank structure according to claim 9, wherein the water inlet end and the water outlet end of the biological filter device are respectively communicated with the water absorption manifold through a nozzle head, and the nozzle head is provided with a regulating valve.