CN216783834U

CN216783834U - Ship structure

Info

Publication number: CN216783834U
Application number: CN202122551445.7U
Authority: CN
Inventors: 权京颜
Original assignee: Techcross Co Ltd
Current assignee: Techcross Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-06-21
Anticipated expiration: 2031-10-22

Abstract

The utility model provides a ship structure, which can easily arrange ballast water treatment devices of various modes at appropriate positions in a cabin corresponding to various ships. The ship structure is a ship structure comprising a ballast water treatment device for treating microorganisms in ballast water to remove or extinguish the microorganisms when the ballast water is taken or discharged, wherein the ballast water treatment device is arranged in a steering engine chamber behind a ship.

Description

Ship structure

Technical Field

The present invention relates to a ship structure having a ballast water treatment apparatus for removing or extinguishing microorganisms contained in ballast water of a ship, for example.

Background

The ballast water of the ship is seawater or fresh water loaded in a ballast tank for controlling the posture of the ship body and ensuring the stability of the ship body, and is essential for safe navigation of the ship. When the ship is sailing without load, ballast water is sucked and loaded into the ballast tanks by the pump (water intake), and ballast water is discharged (water discharge) at the loading port along with the loading of cargo.

The ballast water contains various microorganisms (aquatic organisms) including fish eggs, small fish, and the like, in addition to microorganisms (microorganisms such as bacteria, plankton such as plankton, and the like).

Therefore, since the ballast water is discharged at a port (water area) different from the port where the ballast water is loaded, if microorganisms moving simultaneously with the ballast water live in a new environment, there is a concern that they may affect economic activities such as ecosystem and aquaculture of the water area. In addition, there is a fear that some of pathogenic bacteria moving together with ballast water directly affect human health.

Thus, the International Maritime Organization (IMO) has approved treaties regarding the management of microorganisms contained within ballast water, requiring the removal or extinction of microorganisms as ballast water is taken or drained.

As such an apparatus for removing or destroying microorganisms in ballast water, there has been proposed an apparatus for killing microorganisms in liquid, which comprises a slit plate provided in a flow path and through which ballast water is passed at a predetermined flow rate or higher, and which destroys microorganisms in liquid by breaking them by shearing (due to a rapid change in flow rate occurring at that location) caused by a shearing phenomenon occurring in turbulent water flow caused by the passage of water flow through the slit. Further, there has been proposed an in-liquid microorganism-killing apparatus in which slit plates having slit positions shifted from each other are arranged in front and rear of each other, and a rear slit plate is used to crush a cavity generated in a front side slit plate by an impact pressure generated when the rear slit plate is crushed, thereby killing microorganisms that cannot be destroyed in the front side slit plate by shearing (see, for example, patent document 1).

In view of the need for a ballast water treatment apparatus which is obligatory in the future, there is a demand for a ship structure which can easily install the ballast water treatment apparatus on a newly constructed ship without significantly changing the design of the ship body, and which can be easily applied to the reconstruction of an old ship and installation of the ballast water treatment apparatus. That is, there is a demand for a ship structure in which various types of ballast water treatment apparatuses can be easily installed at appropriate positions in a ship cabin for various kinds of ships (in particular, general commercial ships) such as oil tankers (LPG (liquefied petroleum gas) ships, LNG (liquefied natural gas) ships, oil tankers, etc.), cargo ships (container ships, ro-ro ships, general cargo ships, etc.), and special ships (bulk cargo ships, ore transport ships, automobile transport ships, etc.), without distinguishing between new ships and old ships.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a hull structure capable of easily installing ballast water treatment apparatuses of various types at appropriate positions in a ship's cabin for various ships.

In order to solve the above problems, the present invention adopts the following measures.

The ship structure of the present invention is a ship structure including a ballast water treatment device for removing or extinguishing microorganisms by treating the microorganisms in ballast water at the time of taking water from or discharging water from the ballast water, wherein the ballast water treatment device is provided in a steering engine chamber behind a ship.

Preferably, the ballast water treatment apparatus comprises: an electrolytic cell for water treatment, having an inlet and an outlet at both ends thereof; a combination plate, one surface of which is combined with one side surface of the electrolytic tank; an electrode module penetrating one side surface of the electrolytic cell and the coupling plate, having one end inserted into the electrolytic cell and the other end provided with an auxiliary plate extending vertically outward along the outer peripheral surface of the other end, having one surface of the auxiliary plate coupled to the other surface of the coupling plate, and having a plurality of electrodes inside, and having a case shape; one side surface of the rectifier module is positioned outside the other end of the electrode module, and an electrode protrudes from the other side surface; and a bus bar connecting the electrodes of the electrode module and the rectifier module.

According to this ship structure, since the ballast water treatment device is installed in the steering engine room at the rear of the ship, the space in the ship can be effectively used without significantly changing the ship structure or the ship shape, and various ballast water treatment devices can be easily installed.

In the above ship structure, it is preferable that the ballast water treatment device is disposed on a deck in a space provided in the steering gear chamber, so that the space in the steering gear chamber can be utilized more effectively, that is, the space can be utilized effectively in three dimensions, and various ballast water treatment devices are provided.

In the above ship structure, it is preferable that an empty space at the stern such as a stern quarter is used as a buffer tank of the ballast water treatment apparatus, so that it is not necessary to provide a new buffer tank even if a buffer tank type ballast water treatment apparatus is required.

According to the ship structure of the present invention, it is possible to easily install various types of ballast water treatment apparatuses corresponding to various ships without significantly changing the hull design or the ship shape when the installation of the ballast water treatment apparatus is obligated in the future, and even when the ballast water treatment apparatus is installed on a newly constructed ship or an old ship is converted to install the ballast water treatment apparatus.

Drawings

FIG. 1 is an enlarged view of a stern part of a ship provided with a ballast water treatment apparatus as an embodiment of the ship structure of the present invention.

FIG. 2 is a system diagram showing the taking of water from the ballast water treatment apparatus.

FIG. 3 is a system diagram of the ballast water treatment apparatus at the time of discharging water.

FIG. 4 is a view showing a rectifier-integrated type electrolyzer of a ballast water treating apparatus according to an embodiment of the present invention.

(description of reference numerals)

1: LNG ship 4: stern part

6 ballast tank 7 residential area

8: engine room 9: rudder room

10: free space 12: water intake

12', a water intake 13 for a buffer tank and a ballast water pump

13' treated Water delivery Pump 14 ballast Water piping System

Detailed Description

An embodiment of the ship structure of the present invention will be described below with reference to the drawings.

The ballast water treatment apparatus 20 shown in FIG. 1 comprises a first treatment unit 21 and a second treatment unit 22. The first processing unit 21 and the second processing unit 22 are two units that are divided and arranged to have a necessary processing capability, and each unit is arranged in the rudder room 9. Further, the ballast water treatment apparatus 20 is not limited to the structure divided into the first treatment unit 21 and the second treatment unit 22, and may be appropriately changed in accordance with the treatment method and other conditions.

In FIG. 1, reference numeral 12 denotes a water intake port for ballast water, 13 denotes a ballast water pump, and ballast water taken from the water intake port 12 is supplied to the ballast tank 6 through a ballast water piping system 14.

The ballast water treatment apparatus 20 is connected to a ballast water piping system 14 for supplying the ballast water taken from the water taking port 12 to the ballast tank 6 via a treatment apparatus inlet side piping system 15 and a treatment apparatus outlet side piping system 16.

FIGS. 2 and 3 are piping system diagrams showing examples of the configuration of ballast water treatment apparatus 20, ballast water piping system 14 for supplying ballast water from water intake port 12 to ballast tanks 6 in accordance with the operation of ballast water pump 13, and treatment apparatus inlet-side piping system 15 and treatment apparatus outlet-side piping system 16 for connecting between ballast water treatment apparatus 20 and ballast water piping system 14. In FIGS. 2 and 3, reference numeral 17 denotes a discharge port for ballast water, V1 to V7 denote opening and closing valves, and CV1 denotes a check valve.

Further, in the piping system of FIGS. 2 and 3, the ballast water treatment apparatus 20 is 1 unit, and FIG. 2 shows the flow of water at the time of taking water, and FIG. 3 shows the flow of water at the time of draining.

At the time of taking the ballast water shown in FIG. 2, the ballast water is taken in from the water intake port 12 by operating the ballast water pump 13, and the ballast water taken in from the water intake port 12 flows into the ballast water pump 13 through the ballast water pipe 14a and the ballast water pipe 14b provided with the open-close valve V1 in the open state. This ballast water is fed under pressure by a ballast water pump 13 and is supplied to a ballast water treatment apparatus 20 through a ballast water pipe 14b provided with a check valve CV1 and a treatment apparatus inlet side pipe 15 a.

The above-mentioned check valve CV1 allows only the flow of ballast water in the direction from the ballast water pumps 13 to the ballast water treatment apparatus 20 (the direction indicated by the arrow in the figure). In addition, when taking out the ballast water, the on-off valve V6 provided in the inlet side pipeline 15a of the treatment apparatus is opened, and the on-off valve V2 provided in the ballast water pipeline 14c, the on-off valve V3 provided in the ballast water pipeline 14f, and the on-off valves V4 and V5 provided in the ballast water pipeline 14g are all closed. After the ballast water supplied to ballast water treatment apparatus 20 is subjected to treatment for removing or extinguishing microorganisms contained in the ballast water, the ballast water is stored in ballast tank 6 through opening and closing valve V7, treatment apparatus outlet-side pipeline 16, ballast water pipeline 14d and ballast water pipeline 14 e. Thus, ballast water in which microorganisms are removed or killed is stored in the ballast tank 6.

Further, when the ballast water treatment apparatus 20 uses a buffer tank, the ballast water treatment apparatus 20 is connected to the water intake port for buffer tank 12 ' via the treated water feed pump 13 ', the treated water feed piping system 16 ', in which the flow of ballast water changes only at these places, instead of the treatment apparatus outlet side piping system 16.

Then, the drainage of the ballast water will be described below with reference to FIG. 3. During the water discharge, the opening/closing valves V1, V6, and V7 are switched from open to closed, and the opening/closing valves V3, V4, and V5 are switched from closed to open.

At the time of discharging the ballast water shown in FIG. 3, the ballast water in the ballast tank 6 is sucked by operating the ballast water pump 13. The ballast water taken in from the ballast tank 6 flows into the ballast water pump 13 through the ballast water pipe 14e, the ballast water pipe 14f provided with the open/close valve V3 in the open state, and the ballast water pipe 14 b. The ballast water is pressurized and fed by a ballast water pump 13, and discharged to the outside of the ship through a water discharge port 17 via a ballast water pipe 14b provided with a check valve CV1 and a ballast water pipe 14g provided with opening and closing valves V4 and V5.

Accordingly, when the ballast water is taken in, the treatment for removing or inactivating the microorganisms in the ballast water is performed, and thus the existence of the microorganisms is not found in the ballast water stored in the ballast tank 6. Therefore, even if the LNG ship 1 is loaded with ballast water and sails to the loading port, the ecological environment of the water area around the loading port is not affected as the ballast water is discharged to the outside of the ship when the loading operation is performed at the loading port.

In the above description, the microorganisms are treated by the ballast water treatment apparatus 20 when the ballast water is taken, but the microorganisms may be treated by the ballast water treatment apparatus 20 when the ballast water is discharged.

The ballast water treatment apparatus 20 is installed in the rudder room 9 located behind the LNG ship 1. Since the ballast water treatment apparatus 20 treats ballast water taken out of or discharged from the vessel as the loading and unloading work progresses, a high treatment speed and an increase in size are required. Therefore, a large space is necessary for installing the ballast water treatment apparatus 20. Further, since there are various types of ballast water treatment apparatuses 20, although it is necessary to require a large installation space for the ballast water treatment apparatuses 20 in the prior art, the conditions (shapes, etc.) required as the installation space become various.

A general ship such as the LNG ship 1 has a propeller 11 and a navigation engine disposed behind a hull. Thus, if there is no particular reason, the ballast water pump 13 is provided in the cabin 8 behind the hull. Therefore, in order to suppress an increase in the piping length and piping installation space, it is preferable to dispose the ballast water treatment apparatus 20 near the ballast water pumps 13.

On the other hand, since the rudder housing 9 is located immediately above the propeller 11 and the rudder in the vicinity of the aircraft cabin 8, a relatively wide space is provided for countermeasures against vibrations caused by driving the propeller and the rudder. Therefore, a large installation space in which the ballast water treatment apparatus 20 can be installed can be easily secured inside the rudder room 9. That is, in the rudder unit room 9, a space necessary for installing the ballast water treatment apparatus 20 can be easily secured without greatly changing the hull structure and the ship shape.

Specifically, since the space of the rudder room 9 has the above-described vibration problem, there is a remaining space which is not suitable for a normal equipment installation place (space). However, since the ballast water processing apparatus 20 is mainly used when the LNG ship 1 is stopped, it can be used in a state where the above-described vibration does not exist. The present inventors have paid attention to the above-described ship structure and have found that the rudder room 9 is most suitable as a place where the ballast water treatment apparatus 20 is installed.

That is, since the ballast water is taken in or discharged when the ship is parked at a port and the loading and unloading work is performed, the engine and rudder for ship navigation are not driven when the ballast water treatment apparatus 20 is operated, and the rudder chamber 9 is most suitable as an installation place of the ballast water treatment apparatus 20 without considering the vibration around the rudder chamber 9 when the ballast water treatment apparatus 20 is operated. Further, although the treatment is performed also at the time of navigation if necessary, this does not negate the fact that the rudder room 9 is the most suitable installation place for the ballast water treatment apparatus 20.

From the viewpoint of disposing so-called ballast water treatment apparatus 20 in the vicinity of ballast water pumps 13, it is also conceivable to dispose ballast water treatment apparatus 20 in cabin 8. However, in the cabin 8 in the ordinary ship design, if maintenance and maneuverability are taken into consideration, the cabin 8 is used as a place where various kinds of equipment are installed, except for cases where there are particularly important matters. Moreover, in consideration of the trafficability and workability, and it is a practical matter that the minimum space necessary for the installation and maintenance of the equipment must be secured in the machine room 8, there is substantially no extra space in the machine room 8. Therefore, if the ballast water treatment apparatus 20 is installed in the cabin 8, the hull structure and the ship shape need to be greatly changed, such as changing the hull design, in order to increase the size of the cabin 8.

Particularly, when an existing ship is used, if the ballast water treatment apparatus 20 is provided by modifying the ship chamber 8, a large scale modification work must be performed on the hull structure. Since such a modification work involves an increase in cost and construction time, it is very difficult to install the cabin 8 as the ballast water treatment apparatus 20.

The rudder room 9 is located near the crew accommodation area 7 disposed above the cabin 8, and is advantageous for the entry and exit of the rudder room 9 during work and the like. From this viewpoint, the rudder room 9 is also suitable as a place where the ballast water treatment apparatus 20 is installed.

Further, since the rudder room 9 is an inboard space, it is not necessary to take a measure against the waves and the weather in the marine environment, and from this viewpoint, the rudder room 9 is also suitably used as a place where the ballast water treatment device 20 is installed.

Further, since the rudder room 9 has a relatively large upper space above the steering device, for example, as shown in fig. 1, a deck 30 may be formed at an intermediate position of the space, and the ballast water treatment device 20 may be installed. This configuration makes effective use of the space in the rudder unit room 9 in a three-dimensional manner, and therefore, for example, a split structure in which the first processing unit 21 is provided on the deck 30 and the second processing unit 22 is provided on the floor of the rudder unit room 9 as shown in fig. 1 can be easily realized. Therefore, when installing the ballast water treatment apparatus 20 of various types having different structures, shapes, and the like, various measures can be taken flexibly according to various conditions.

Further, if the ballast water treatment apparatus 20 is installed in the rudder unit room 9, when the ballast water treatment apparatus 20 needs to adopt a surge tank system, a tail tank or the like installed in the nearby empty space 10 can be used as a surge tank.

With this configuration, the space of the empty space 10 is effectively used, and the installation space of the buffer tank can be easily secured. That is, since the buffer tank is only a device for storing ballast water, even in an empty space which is located at the stern and has a complicated shape, the buffer tank can be effectively used without being restricted by the shape of the space.

In addition, in the case where the ballast water treatment apparatus 20 is of the atmospheric open type, it is to be avoided in view of the above-mentioned structure that it should be disposed below the ship waterline 40. On the other hand, when ballast water treatment apparatus 20 is installed at or above the top of ballast tank 6 and conventional ballast water pump 13 is used, it is necessary to perform an extra modification such as raising the discharge pressure of ballast water pump 13, which results in waste. Thus, when the ballast water treatment apparatus 20 is of the atmospheric open type, it is reasonable to arrange it in the rudder room 9 located above the ship waterline 40 and below the top of the ballast tank 6.

Thus, according to the ship structure of the present invention, it is not necessary to significantly change the hull design or the ship shape of the ballast water treatment apparatus 20 which is required to be installed in future, and it is possible to easily install various types of ballast water treatment apparatuses corresponding to various ships even when the ballast water treatment apparatus is installed on a newly constructed ship or an old ship is converted and installed. That is, the present invention can effectively utilize the space of the rudder unit room 9 which is essential for the ship structure, and the present invention finds that the rudder unit room 9 which is less restricted in arrangement or has an influence on other ship structures is an optimum installation place of the ballast water treatment apparatus 20 in the ship structure.

Further, since the rudder unit room 9 is adjacent to the unit room 8 in which the ballast water pump 13 is installed, the piping length and the piping installation space necessary for the treatment device inlet side piping 15 and the treatment device outlet side piping 16 can be reduced, and the pressure loss accompanying the ballast water treatment can be minimized.

Further, since the rudder housing 9 is a non-explosion-proof area, there is an advantage that restrictions on various control devices and electrical devices are small.

Further, since the rudder room 9 is located above the waterline of the ship, there is an advantage that the ballast water can be easily discharged to the outside of the ship in an emergency.

As shown in fig. 4, the rectifier-integrated electrolytic apparatus of the present invention includes: an electrolytic cell 100 for water treatment, having an inlet and an outlet at both ends thereof; a coupling plate 200 having one surface coupled to one side surface of the electrolytic bath 100; an electrode module 300 penetrating one side surface of the electrolytic cell 100 and the coupling plate 200, having one end inserted into the electrolytic cell 100 and the other end provided with an auxiliary plate 320 vertically extended outward along the outer peripheral surface of the other end, having one surface of the auxiliary plate 320 coupled to the other surface of the coupling plate 200, and having a plurality of electrodes inside, and having a case shape; a rectifier module 400 having one side surface positioned outside the other end of the electrode module 300 and an electrode 410 protruded from the other side surface; a letter plate 500 having both surfaces coupled to the other surface of the coupling plate 200 and either one side surface of the rectifier module 400, respectively; and bus bars connecting the electrodes of the electrode module 300 and the rectifier module 400.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope of the present invention.

Claims

1. A ship structure comprising a ballast water treatment apparatus for supplying ballast water to be treated in order to treat and remove or kill microorganisms in ballast water at the time of taking or discharging the ballast water, characterized in that,

the ballast water treatment device is arranged in a steering engine chamber which is arranged at the rear of the ship and is positioned right above the propeller and the rudder, and the ballast water treatment device is positioned in a non-explosion-proof area above the waterline of the ship,

the ballast water treatment apparatus comprises:

an electrolytic cell for water treatment, having an inlet and an outlet at both ends thereof;

a combination plate, one side of which is combined with one side surface of the electrolytic bath;

an electrode module penetrating one side surface of the electrolytic cell and the coupling plate, having one end inserted into the electrolytic cell and the other end provided with an auxiliary plate extending vertically outward along the outer peripheral surface of the other end, having one surface of the auxiliary plate coupled to the other surface of the coupling plate, and having a plurality of electrodes inside, and having a case shape;

one side surface of the rectifier module is positioned outside the other end of the electrode module, and an electrode protrudes from the other side surface; and

and a bus bar connecting the electrodes of the electrode module and the rectifier module.

2. Marine structure according to claim 1,

the ballast water treatment apparatus is installed in the steering engine room or on a deck disposed in a space of the steering engine room, and supplies the ballast water to the ballast water treatment apparatus, the ballast water being sucked from a water intake port by a ballast water pump and stored in a ballast tank of a ship, the ballast water line being provided to supply the ballast water, which is sucked from the water intake port and sent under pressure by the ballast water pump, to a treatment apparatus inlet side line of the ballast water treatment apparatus when the ballast water is taken, the ballast water line being provided with a check valve which allows only a flow in a direction from the ballast water pump to the ballast water treatment apparatus, the ballast water in the ballast tank being sucked into the ballast water pump and sent under pressure by operating the ballast water pump when the ballast water is discharged, the ballast water being sent after passing through the check valve, and is discharged out of the ship through the water discharge port.

3. Marine structure according to claim 1 or 2,

the tail tank is used as a buffer tank of the ballast water treatment apparatus.