KR20130000144A - Opening and closing apparatus of thruster tunnel and ship having the same - Google Patents

Abstract

PURPOSE: A thruster tunnel opening and closing device and a ship including the same are provided to have a simple structure as an opening of a thruster tunnel is opened and closed by expanding and contracting flexible opening and closing members. CONSTITUTION: A thruster tunnel opening and closing device comprises multiple opening and closing members(50) and a fluid feeding device(60). The opening and closing members are made of a flexible material, and open and close a part of an opening of a thruster tunnel. The fluid feeding device feeds fluid into the multiple opening and closing members. The multiple opening and closing members are expanded by the fluid fed from the fluid feeding device to close the entire area of the opening.

Description

Thrust Tunnel Opening and Closing Vessels {OPENING AND CLOSING APPARATUS OF THRUSTER TUNNEL AND SHIP HAVING THE SAME}

The present invention relates to a ship, and more particularly to a switch having a thruster tunnel and a ship having the same.

The ship is equipped with a thruster which is installed on the bow or stern side to give lateral propulsion force so as to enhance the stability of the steering or to easily dive into the quay.

For example, a typical tunnel type thruster includes a tunnel formed so as to pass through the port and starboard of a ship, and a propeller-type propeller provided in the tunnel and capable of forward rotation and reverse rotation. The propulsion system in the tunnel operates to generate propulsive force in the port or starboard direction of the ship.

However, there is a problem that the thruster tunnel in such a ship acts as a resistance against the fluid when the ship is straightened since both sides are open. In other words, when seawater enters and leaves the thruster tunnel during operation of the ship, disturbance of fluid occurs at the entrance of the tunnel. This phenomenon acts as a resistance and deteriorates the propulsion performance of the ship.

Conventionally, in order to compensate for this, a scallop shape around the inlet of the thruster has a scallop shape to reduce the step difference between the front and rear parts of the inlet to reduce the increase in resistance, or to open the inlet when the thruster is used. When not in use, a method of installing a switchgear to close the entrance has been proposed.

However, in the case of the conventional switchgear, it is difficult to completely open the tunnel entrance, and thus the switchgear acts as a resistance during the operation of the thruster, thereby reducing the transverse thrust force. In addition, the configuration and installation of the switchgear was not easy, so the case of application to the actual ship was insignificant.

Embodiments of the present invention to provide a thruster tunnel opening and closing apparatus that can open and close the entrance of the thruster tunnel by a simple structure and a vessel comprising the same.

In addition, embodiments of the present invention to provide a thruster tunnel opening and closing device capable of fully opening and closing the thruster tunnel opening and a vessel comprising the same.

According to an aspect of the present invention, a plurality of opening and closing member of the elastic material for opening and closing any part of the opening of the thruster tunnel, and a fluid supply device for introducing a fluid into the plurality of opening and closing members, the plurality of opening and closing The member may be provided with a thruster tunnel opening and closing device that expands due to the fluid supplied by the fluid supply device to close the entire area of the opening.

It may further include an accommodation portion provided around the opening to accommodate the plurality of opening and closing members.

It may further include a cover for opening and closing the inlet of the receiving portion.

The cover may further include an elastic member for pressing the cover in the closing direction.

The opening and closing member may include a shape memory material to be wound on its own when the fluid in the opening and closing member is leaked.

The fluid supply device includes an inlet pipe for introducing fluid outside the hull, a plurality of distribution pipes branched from the inlet pipe and connected to the plurality of opening / closing members, respectively, and provided in the middle of the inlet pipe to provide fluid outside the hull. It may include a pump for supplying each of the plurality of opening and closing members.

In the middle of the distribution pipe may be provided with a valve for turning on / off the distribution pipe.

The sensor may further include a detector configured to measure the pressure of the opening and closing member, and a controller configured to turn on / off at least one of the pump and the valve using a signal of the detector.

The display unit may further include a display unit configured to display the measured value of the sensing unit.

According to another aspect of the present invention, in a ship comprising a thruster tunnel penetrating both sides of the hull, a thruster mounted inside the thruster tunnel, and a thruster tunnel opening and closing device for opening and closing the opening of the thruster tunnel The thruster tunnel opening and closing device includes a plurality of opening and closing members of a stretchable material disposed around the opening, and a fluid supply device for introducing a fluid into the plurality of opening and closing members, wherein the plurality of openings are formed of a fluid. When supplied, the opening / closing member may expand in the center direction of the opening, and adjacent opening / closing members of the plurality of opening / closing members may close each other, and when the fluid is discharged, the opening may be contracted in the circumferential direction of the opening.

It may further include an accommodation portion provided around the opening to accommodate the plurality of opening and closing members.

It may further include a cover for opening and closing the inlet of the receiving portion.

The opening and closing member may be restored to a state before the fluid is supplied when the fluid in the opening and closing member flows out.

The fluid supply apparatus includes an inlet pipe for introducing fluid outside the hull, a plurality of distribution pipes branched from the inlet pipe and connected to the plurality of opening / closing members, respectively, and a plurality of fluids outside the hull provided in the middle of the inlet pipe. It may include a pump for supplying each of the opening and closing members of the.

It may include a fastener for measuring the pressure of the opening and closing member, and a display unit for displaying the pressure measured by the detection unit.

Embodiments of the present invention can be configured to open and close the thruster tunnel opening and closing device by a relatively simple structure by opening and closing the opening of the thruster tunnel by expanding and contracting a plurality of opening and closing members of the elastic material.

In addition, the response speed of the opening and closing operation is improved by injecting and expanding fluid into the plurality of opening and closing members at the same time. In addition, even if some of the plurality of opening and closing member is damaged, the remaining opening and closing member can maintain its function to maintain a predetermined portion closing performance, thereby improving the reliability of the opening and closing device.

1 is a cross-sectional view showing an open state of a thruster tunnel according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a state in which a thruster tunnel is closed according to an embodiment of the present invention.
3 is an enlarged perspective view of an opening side of a thruster tunnel according to an embodiment of the present invention.
4 is a view of the thrust tunnel is closed according to an embodiment of the present invention from the side of the hull.
5 is an enlarged view illustrating main parts of a thruster tunnel in a closed state according to an exemplary embodiment of the present invention.
6 is a view showing a contraction operation of the opening and closing member included in the thruster according to an embodiment of the present invention.
7 is a view showing a state in which the opening and closing member of the thruster tunnel opening and closing apparatus according to an embodiment of the present invention is accommodated in the receiving portion.
8 is a view illustrating a process of expanding the opening and closing member of the thruster tunnel opening and closing apparatus according to an embodiment of the present invention.
9 is a control block diagram of a thruster tunnel opening and closing apparatus according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing an open state of the thruster tunnel according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing a closed state of the thruster tunnel according to an embodiment of the present invention. Figure 3 is an enlarged perspective view of the opening side of the thruster tunnel according to an embodiment of the present invention, Figure 4 is a view of the thrust tunnel in accordance with an embodiment of the present invention when viewed from the side of the hull.

As shown in Figs. 1 and 2, the thruster has a thruster tunnel 20 formed to penetrate the port and starboard on the bow or stern side of the hull 10 under the water, and inside the thruster tunnel 20. The propeller type propeller 30 provided and the thruster tunnel opening and closing apparatus 40 which open and close the opening part 21 of the thruster tunnel 20 are included.

The thruster generates the propulsion force in the port or starboard direction by the propeller 31 of the propeller 30 rotates in the forward or reverse direction. In addition, since the thrust force in the lateral direction is not required during the cruise of the ship, the opening 21 of the thruster tunnel 20 has a thruster tunnel opening and closing device as shown in FIG. 2 in order to prevent an increase in hull resistance due to vortex. The closed state is maintained by 40.

The thruster tunnel 20 is provided with a grid 23 formed in the form of a grid to prevent foreign matter from flowing into the thruster tunnel 20 from a portion near the opening 21.

The thruster tunnel opening and closing device 40 is disposed at one side of the opening 21 of the thruster tunnel 20, and each of the thrust tunnel opening and closing devices 40 opens and closes a predetermined area corresponding to any part of the opening 21. A plurality of opening and closing member 50 to open and close the fluid, Fluid supply device 60 for flowing in and out of the fluid for the expansion and contraction of the plurality of opening and closing member 50 to the opening and closing member 50, and in the contracted state It includes a receiving portion 70 for receiving the opening and closing member 50, and a cover 80 for opening and closing the receiving portion 70.

For example, the plurality of opening and closing members 50 may be formed in a tube shape using a material having elastic force such as rubber to facilitate expansion and contraction. The opening 21 is opened or closed.

In addition, in one embodiment, the opening and closing member 50 is to be composed of six, as shown in Figures 3 and 4, the opening and closing member 50 is expanded due to the supply of liquid to the adjacent opening and closing members 50 Various shapes may be possible as long as the opening 21 can be closed as a whole adjacent to each other, and may be formed in any number of two or more. The opening and closing members 50 are adjacent to each other includes a state in which neighboring opening and closing members are in contact with each other to maintain watertightness, and a state in which neighboring opening and closing members are closely spaced to a predetermined degree so that fluid flow in and out can occur finely. .

5 is an enlarged view illustrating main parts of a thruster tunnel in a closed state according to an exemplary embodiment of the present invention.

As shown in FIG. 5, the plurality of opening / closing members 50 are installed outside the grid 23 so that the inner outer surface thereof can be supported by the grid 23 when inflated due to the inflow of fluid. The hydraulic pressure acts upon the operation of the ship, and when the opening / closing member 50 is inflated, the rear surface of the opening / closing member 50 is supported by the grid 23 so that it can be firmly fixed, and the opening / closing member adjacent by the hydraulic pressure during the operation. (50) It can be a structure in which the contact force between each other is strengthened and substantially watertight.

Since the opening / closing member 50 is provided in plural, even when a part of the opening / closing member 50 is damaged and the fluid in the opening / closing member 50 is lost, the part of the thruster tunnel 20 is closed by the remaining opening / closing member 50. It can be maintained, and it can prevent the problem that the opening part 21 opens entirely when a part is broken.

6 is a view showing a contraction operation of the opening and closing member included in the thruster according to an embodiment of the present invention.

The shrinkage process of the opening and closing member will be described with reference to FIG. 6.

Fluid flow in and out of the opening / closing member 50 may flow in and out of seawater or fresh water by rotating the pump 65, which will be described later, forward and backward. When the fluid flows out from the opening and closing member 50, the opening and closing member 50 is contracted in a dry form as shown in FIG. 6 to be accommodated in the receiving portion 70. The fluid in the opening / closing member 50 is discharged by the negative pressure due to the driving of the pump 65. At this time, the opening and closing member 50 is accommodated in the receiving unit 70 by contracting in a predetermined direction. This is possible, for example, the shape memory material 51 is configured to be coupled to the outside or inside of the opening and closing member 50.

The shape memory material 51 may include a film or a leaf spring or other various materials that provide an elastic force to be wound in a spiral form when the opening and closing member 50 is accommodated in the receiving portion 70. The shape memory material 51 is attached to the outer surface or the inner surface of each of the opening and closing members 50, so that the fluid in the opening and closing member 50 is drained to be self-winding by the restoring force when the opening and closing member 50 is contracted.

In addition, the shape memory material 51 is coupled to the opening / closing member 50, and the opening / closing member itself is formed of the shape memory material, or the fluid is discharged by processing a predetermined pattern in the form of a slit in the opening / closing member to shrink in a predetermined direction. It can also be configured to wind up on its own.

Next, the fluid supply apparatus will be described with reference to FIGS.

The fluid supply device 60 for contracting and expanding the opening / closing member 50 includes an inlet pipe 61 having one end communicating with the inside of the thruster tunnel 20 so as to introduce a fluid inside the thruster tunnel 20. , Branched from the other end of the inlet pipe 61 and provided in a number corresponding to the plurality of opening / closing members 50, being provided in the middle of the distribution pipe 63 connected to each of the plurality of opening and closing members 50, and the inlet pipe 61. The pump 65 is pumped to supply the liquid in the thruster tunnel 20 to the plurality of opening and closing members 50 or to drain the liquid in the plurality of opening and closing members 50.

The fluid is the water in the body of the ship, which can be seawater when sailing, and fresh water when rivers or lakes. In addition, in one embodiment, although the inlet pipe 61 communicates with the inside of the thruster tunnel 20, the inlet pipe may be at any position as long as the inlet pipe 61 may inject fluid from outside the hull, such as the outer surface of the hull 10. One end of 61 may be formed.

During operation of the ship, the pump 65 is driven to supply fluid to the plurality of opening and closing members 50 at the same time, thereby expanding the opening and closing member 50 to quickly close the opening 21 of the thruster tunnel 20, In operation of the thruster, the pump 65 is reversely driven to simultaneously drain the fluid in the plurality of opening and closing members 50 to the outside, thereby contracting the opening and closing member 50 to quickly open the opening 21 of the thruster tunnel 20. Will be opened.

Since the fluid supply device 60 expands the plurality of opening and closing members 50 by using the fluid outside the hull (for example, inside the thruster tunnel 20), it is necessary to have a separate tank for storing the fluid in the ship. This enables economic design of ships and simplifies the structure for water supply and drainage.

In addition, the fluid supply device 60 may be provided in the middle of the distribution pipe 63 may include a valve 67 for controlling the liquid flowing in and out of the opening and closing member 50.

The valve 67 turns on / off the distribution pipe 63 so as to supply an appropriate amount of fluid to the opening and closing member 50.

In one embodiment, a single pump performs a supply and discharge operation of the fluid, but a pump for supplying the fluid and a pump for discharge of the fluid may be provided respectively. In addition, various types of flow path structures for supplying fluid to the opening and closing member are possible.

The channel receiving portion 70 corresponding to the opening / closing member 50 is provided around the opening 21 of the thruster tunnel 20 to accommodate the plurality of opening / closing members 50, respectively.

7 is a view showing a state in which the opening and closing member of the thruster tunnel opening and closing apparatus according to an embodiment of the present invention is accommodated in the receiving portion, Figure 8 is a opening and closing member of the thruster tunnel opening and closing apparatus according to an embodiment of the present invention A diagram showing the process of inflation.

Next, with reference to 7,8 will be described for the receiving portion for receiving the opening and closing member.

As shown in FIG. 7 and 8, each of the plurality of housing portions 70 is stored in a state where the flexible opening / closing member 50 is wound, and the housing portion 70 is provided at the inlet 71 of the housing portion 70. A cover 80 for opening and closing is provided.

The cover 80 is rotatably coupled to an end of the inlet 71 of the accommodating part 70, and the cover 80 is connected to the hinge shaft 81 of the cover 80 to the inlet 71 of the accommodating part 70. An elastic member 83 that applies an elastic force in a closing direction may be provided.

The cover 80 is opened in the direction of opening the inlet 71 of the accommodating part 70 by the expansion force of the opening and closing member 50 when the liquid is supplied to the opening and closing member 50 accommodated in the accommodating part 70 to expand. Rotate Accordingly, the opening and closing member 50 can expand in the center direction of the opening 21 of the thruster tunnel 20. When the opening and closing member 50 is contracted in the circumferential direction of the opening 21, when the opening and closing member 50 is accommodated in the receiving portion 70, the cover 80 is accommodated by the restoring force of the elastic member 83. Inlet 71 is closed. Therefore, even when the receiving part 70 is closed by the cover 80 during the operation of the thruster, even when water flows through the thruster tunnel 20, it is possible to prevent the vortex generation by the receiving part 70.

9 is a control block diagram of a thruster tunnel opening and closing apparatus according to an embodiment of the present invention, an embodiment of the present invention is the input unit 91, the detection unit 93, the control unit 95 and the display unit 97 It may include.

The input unit 91 is for inputting the operation information of the ship (for example, the operation mode of the ship, the thruster operation mode), and the input information is transmitted to the control unit 95.

The detection unit 93 is a sensor for sensing the pressure of each opening and closing member 50, and detects the pressure in each opening and closing member 50 and transmits the pressure to the control unit 95.

The control unit 95 is a microcomputer that controls the overall operation of the thruster tunnel opening and closing device 40 such as the valve 67 and the pump 65 according to the information transmitted from the input unit 91 and the detection unit 93.

The display unit 97 displays whether the valve 67, the pump 65 is driven, and / or the pressure of each opening / closing member 50, and the pressure of any opening / closing member 50 is stored in the controller 95. If it is out of the pressure range may be displayed whether the corresponding opening and closing member 50 is damaged.

In one embodiment, when the navigation mode of the ship is input through the input unit 91, the control unit 95 drives the pump 65, and turns on the valve (67). Due to the driving of the pump 65, the fluid flows into the opening / closing member 50 and expands, and the sensing unit 93 measures the pressure of each of the opening / closing members 50. When the measured pressure value reaches the optimum pressure value range stored in the controller 95, the valve 67 connected to the corresponding opening / closing member 50 is individually turned off to adjust the amount of fluid in each of the opening / closing members 50. Can be. When the entire valve 67 is turned off, the controller 95 determines that the closing of the thruster tunnel 20 is completed, and stops driving the pump 65 to complete the closing of the thruster tunnel 20.

The detector 93 measures the pressure of the opening / closing member 50 at predetermined time units during the operation of the ship, and transmits the pressure to the control unit 95. The control unit 95 measures the pressure of the opening / closing member 50. If it is determined that the reason is out of the normal range it can be notified to the operator through the display unit (97).

In addition, when the thruster operation mode is input through the input unit 91, the control unit 95 drives the pump 65 and turns the valve 67 on as opposed to the operation mode. Due to the driving of the pump 65, the fluid in the opening and closing member 50 is discharged, and the detection unit 93 measures the pressure of each of the opening and closing members 50. When the measured pressure value reaches a range determined as the state in which the fluid in the opening and closing member 50 is completely discharged, the valve 67 connected to the opening and closing member 50 is individually turned off, and the entire valve 67 is closed. When off, the driving of the pump 65 is stopped to complete the opening of the thruster tunnel 20.

Hereinafter, the operation of the thruster tunnel opening and closing device of the present invention will be described.

In ship cruise, the opening and closing device 40 closes the opening 21 of the thruster tunnel 20 as shown in FIG. 2. In this case, the pump 65 pumps the seawater or fresh water present in the thruster tunnel 20 and injects it into the plurality of opening and closing members 50.

The liquid injected into the plurality of opening / closing members 50 by the pumping force of the pump 65 expands the plurality of opening / closing members 50, and the plurality of opening / closing members wound in a spiral shape in the receiving part 70 ( 50 expands and presses the cover 80 which closes the inlet 71 of the receiving portion 70. As a result, the cover 80 rotates as shown in FIG. 8 to open the inlet 71 of the accommodating part 70, and the plurality of opening / closing members 50 expand through the open inlet 71 to allow the thrust tunnel ( By closing the openings 21 of 20, the hull resistance caused by the openings 21 of the thruster tunnel 20 can be reduced.

In this case, as the opening 21 of the thruster tunnel 20 is closed by the plurality of opening and closing members 50, the opening 21 is opened in a faster time than when the opening 21 is closed through a single opening and closing member. It can be closed, even if some of the opening and closing member is damaged by the remaining opening and closing the function can be maintained to a certain degree to improve the reliability.

On the other hand, when the plurality of opening / closing members 50 are expanded to close the opening 21 of the thruster tunnel 20, the valve 67 is kept closed by the controller 95.

When the ship operates the propeller 31 of the thruster for turning, the thruster tunnel opening and closing device 40 opens the opening 21 of the thruster tunnel 20. At this time, the valve 67 is opened and the pump 65 is operated to drain the fluid in the plurality of opening and closing members 50 into the thruster tunnel 20 to drain the fluid in the plurality of opening and closing members 50.

When the fluid in the plurality of opening and closing members 50 is drained, as shown in FIG. 7, the plurality of opening and closing members 50 are respectively wound by the elastic force of the shape memory material 51 or the like. The cover 80, which is accommodated in the 70 and opens and closes the inlet 71 of the accommodating part 70, closes the inlet 71 of the accommodating part 70 by the elastic force of the elastic member 83.

In this state, when the thruster is driven, the housing 70 is closed by the cover 80, so that the vortex is prevented from being generated by the housing 70 even when the water flows through the thruster tunnel. Can be.

10 hull 20 thruster tunnel
21: opening 23: grid
30: thruster 40: thruster tunnel opening and closing device
50: opening and closing member 51: shape memory material
60: fluid supply device 61: inlet pipe
63: distribution pipe 65: pump
67 valve 70 receiving part
80: cover 83: elastic member
91 input unit 93 detection unit
95 control unit 97 display unit.

Claims (15)

Each of the plurality of opening and closing member of the elastic material for opening and closing any part of the opening of the thruster tunnel, and a fluid supply device for introducing the fluid into the plurality of opening and closing members,
And the plurality of opening and closing members are expanded due to the fluid supplied by the fluid supply device to close the entire area of the opening. The method of claim 1,
And a receptacle provided around the opening to accommodate the plurality of opening and closing members. The method of claim 2,
Thrust tunnel opening and closing device further comprising a cover for opening and closing the inlet of the receiving portion. The method of claim 3,
And the cover further comprises an elastic member for urging the cover in the closing direction. The method according to any one of claims 1 to 4,
The opening and closing member of the thruster tunnel opening and closing device, characterized in that it comprises a shape memory material for winding itself when the fluid in the opening and closing member. The method according to any one of claims 1 to 4,
The fluid supply device includes an inlet pipe for introducing fluid outside the hull, a plurality of distribution pipes branched from the inlet pipe and connected to a plurality of opening and closing members, respectively, and a plurality of fluids outside the hull provided in the middle of the inlet pipe. Thrust tunnel opening and closing device comprising a pump for supplying each of the opening and closing members of the. The method according to claim 6,
A thruster tunnel opening and closing device, characterized in that the middle of the distribution pipe is provided with a valve for turning on / off the distribution pipe. The method of claim 7, wherein
And a control unit for measuring the pressure of the opening and closing member, and a controller for turning on / off at least one of the pump and the valve using a signal of the detection unit. 9. The method of claim 8,
And a display unit for displaying the measured value of the sensor. In a ship comprising a thruster tunnel penetrating both sides of the hull, a thruster mounted inside the thruster tunnel, and a thruster tunnel opening and closing device for opening and closing the opening of the thruster tunnel,
The thruster tunnel opening and closing device includes a plurality of opening and closing members of a flexible material disposed around the opening, and a fluid supply device for introducing a fluid into the plurality of opening and closing members,
When the fluid is supplied, the plurality of opening members expand in the direction of the center of the opening to close the openings adjacent to each other among the plurality of opening / closing members. A ship, characterized in that for opening the opening. The method of claim 10,
And a receiving portion provided around the opening to accommodate the plurality of opening and closing members. The method of claim 11,
The ship further comprises a cover for opening and closing the inlet of the receiving portion. The method according to any one of claims 10 to 12,
The opening and closing member is a vessel, characterized in that to restore the state before the fluid is supplied when the fluid in the opening and closing member. The method according to any one of claims 10 to 12,
The fluid supply device includes an inlet pipe for introducing fluid outside the hull, a plurality of distribution pipes branched from the inlet pipe and connected to a plurality of opening and closing members, respectively, and a plurality of fluids outside the hull provided in the middle of the inlet pipe. A ship comprising a pump for supplying each of the opening and closing members of the. The method according to any one of claims 10 to 12,
And a sensing unit for measuring the pressure of the opening and closing member, and a display unit for displaying the pressure measured by the sensing unit.

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