KR20250031126A - Installation structure of thruster for vessel - Google Patents

Abstract

An installation structure of a ship thruster is disclosed. The installation structure of a ship thruster according to the present embodiment can be provided including a thruster unit that provides propulsive force to a hull, a thruster trunk provided on a bow side or a stern side of the hull and in which the thruster unit is installed, a thruster access trunk provided on a forward or rear side of the thruster trunk, a thruster void provided on a forward or rear side of the thruster trunk where the thruster access trunk is not provided to be connected to the thruster access trunk, and a thruster maintenance space provided on an upper side of the thruster trunk, the thruster access trunk, and the thruster void.

Description

INSTALLATION STRUCTURE OF THRUSTER FOR VESSEL

The present invention relates to an installation structure for a ship thruster, and more specifically, to an installation structure for a ship thruster installed on the stern or bow of a ship, such as a drilling ship for drilling liquefied natural gas, etc., to adjust the position of the ship by finely adjusting the hull against water resistance.

In general, when a vessel docks at a quay or enters a dock for repairs, it is necessary to steer the hull finely to be parallel to the quay or dock. In particular, special vessels drilling for liquefied natural gas, etc. and floating marine structures need to control their position within a desired range by steering the hull finely against water resistance when moored.

For this purpose, a key device used for the main propulsion and position control of the ship is a thruster (hereinafter referred to as “thruster”), which is a type of propulsion device. As disclosed in Korean Patent Publication No. 10-2014-0055757, the thruster may include a tunnel section, a propeller that rotates inside the tunnel section and generates thrust, and a stator provided inside the tunnel section. The thruster is mainly located at the bottom of the hull and can propel, reverse propel, or rotate the ship through the rotational force of the propeller.

Meanwhile, since these thrusters are mainly installed in relatively narrow spaces at the stern or rear of the drilling vessel, there are difficulties in the layout design of the thrusters and the units for driving and maintaining them. In addition, when maintenance or repair of the units for driving and maintaining the thrusters, including the thruster drive unit, is required, the drilling vessel must stop work, move to a repair dock at sea, maintain or repair the units, and then move back to the work location at sea to resume drilling work, which increases the work stoppage period, resulting in problems of reduced economy and productivity.

Republic of Korea Patent Publication No. 10-2014-0055757 (Published on May 9, 2014)

The present embodiment is intended to provide an installation structure for a ship thruster in which a thruster unit and units for driving and maintaining the same can be efficiently arranged in a relatively narrow space.

The present embodiment is intended to provide an installation structure for a ship's thruster, which can secure a space for maintenance of a thruster unit and units for driving and maintaining the thruster unit within a hull, and can easily discharge the thruster unit outside the hull.

According to one aspect of the present invention, an installation structure for a ship's thruster can be provided, including a thruster unit for providing propulsive force to a hull, a thruster trunk provided on a bow side or a stern side of the hull and in which the thruster unit is installed, a thruster access trunk provided on a front or rear side of the thruster trunk, a thruster void provided on a front or rear side of the thruster trunk where the thruster access trunk is not provided to be connected to the thruster access trunk, and a thruster maintenance space provided on an upper side of the thruster trunk, the thruster access trunk, and the thruster void.

The above thruster unit may include a thruster base, a thruster drive unit provided on an upper portion of the thruster base, and a tunnel unit provided on a lower portion of the thruster base, wherein a propeller is provided inside to receive rotational force from the thruster drive unit and provide propulsive force to the hull.

The above thruster trunk may include a thrust unit mounting portion on which the thruster base is mounted on the lower surface side of the thruster trunk, and a thruster trunk hatch on the upper surface side of the thruster trunk that can be opened and closed to communicate with the thruster maintenance space.

The above thruster trunks can be provided in three pieces spaced apart from each other between the thruster access trunk and the thruster void.

The above thruster trunk can be provided at the same height as the above thruster access trunk and the above thruster void, respectively.

The above thruster access trunk may include a drainage unit layer provided in a lower space of the thruster access trunk, a fueling unit layer laminated on an upper side of the drainage unit layer, a water separation unit layer laminated on an upper side of the fueling unit layer, and a first monitoring unit layer laminated on an upper side of the water separation unit layer.

The above thruster maintenance space may include a transfer unit layer laminated on the upper side of the first monitoring unit layer, a second monitoring unit layer laminated on the upper side of the transfer unit layer, and a pressure control unit layer laminated on the upper side of the second monitoring unit layer.

The above thruster maintenance space may include a thrust crane provided adjacent to the lower side of the deck of the hull forming the upper surface of the thruster maintenance space, and a thrust unit discharge hatch provided on the deck so that the thrust unit can be discharged from the thruster maintenance space to the outside of the hull or introduced into the thruster maintenance space from the outside of the hull.

The installation structure of the ship thruster according to the present embodiment can greatly improve the space utilization of the ship since the thruster unit and the units for driving and maintaining the thruster unit can be efficiently arranged in a relatively narrow space.

The installation structure of the ship thruster according to the present embodiment can secure a space for maintenance of the thruster unit and the units for driving and maintaining it within the hull, and since the thruster unit can be easily discharged outside the hull, the time required for maintenance or repair of the thrust unit and the units for driving and maintaining it can be significantly reduced.

FIG. 1 is a side cross-sectional view illustrating the installation structure of a ship thruster according to one embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a section of a thruster access trunk side of an installation structure of a ship thruster according to one embodiment of the present invention.
FIG. 3 is a cross-sectional view showing a section of the thruster trunk side of the installation structure of a ship thruster according to one embodiment of the present invention.
FIG. 4 is a cross-sectional view showing the installation structure of a ship thruster according to one embodiment of the present invention, taken as a section on the side of the water separation unit layer.

Hereinafter, the present embodiment will be described in detail with reference to the attached drawings. The following embodiments are presented to sufficiently convey the idea of the present invention to those skilled in the art to which the present invention pertains. The present invention is not limited to the embodiments presented herein and may be embodied in other forms. In order to clarify the present invention, the drawings may omit parts that are not related to the description, and may somewhat exaggerate the size of components to help understanding.

FIG. 1 is a side cross-sectional view illustrating the installation structure of a ship thruster according to an embodiment of the present invention. In addition, FIG. 2 and FIG. 3 are front cross-sectional views illustrating a cross-section of a thruster access trunk side and a cross-section of a thruster trunk side, respectively, in the installation structure of a ship thruster according to an embodiment of the present invention. In addition, FIG. 4 is a cross-sectional view illustrating a cross-section of a water separation unit layer side in the installation structure of a ship thruster according to an embodiment of the present invention.

Referring to FIGS. 1 to 4, the installation structure of a ship thruster according to the present invention may include a thruster unit (100), a thruster trunk (200), a thruster access trunk (300), a thruster void (400), and a thruster maintenance space (500).

The thruster unit (100) is for providing propulsive force to a hull to which the installation structure of the ship thruster according to the present invention is applied, and may include a tunnel section (130) having a thruster base (110), a thruster drive section (120) provided on the upper portion of the thruster base (110), and a propeller (131) provided on the lower portion of the thruster base (110) and receiving rotational force from the thruster drive section (120) to provide propulsive force to the hull to which the installation structure of the ship thruster according to the present invention is applied.

In addition, as shown in Fig. 1, in a general state, the thruster unit (100) has a thruster drive unit (120) positioned within the thruster trunk (200), and a tunnel unit (130) provided on the bottom of the hull to provide propulsion force to the hull by a rotating propeller (131).

Meanwhile, as shown in FIGS. 1 and 3, the thruster trunk (200) is a rectangular space that is elongated in the vertical direction overall, and includes a thruster unit mounting portion (210) provided at the lower portion, which is the bottom surface side of the hull, and a thruster trunk hatch (220) provided at the upper portion, which is the bottom surface side of the thruster maintenance space (500). Accordingly, the thruster unit (100) can provide propulsive force to the hull in a state where the thruster base (110) is mounted on the thruster unit mounting portion (210) within the thruster trunk (200) as described above.

In addition, the thruster trunk (200) may be provided with a sufficient cross-sectional area so that, when maintenance of the thruster unit (100) mounted on the thruster unit mounting portion (210) as described above is required, the thruster unit (100) can be moved upward along the internal space of the thruster trunk (200) and discharged toward the thruster maintenance space (500) through the thruster trunk hatch (220).

In addition, the thruster trunk (200) may be provided with three spaced apart arrangements between the thruster access trunk (300) and the thruster void (400) as illustrated in FIGS. 1 and 3. Accordingly, a ship to which the thruster installation structure for a ship according to the present invention is applied may include three thruster units (100) provided in the width direction of the hull or the length direction of the hull on the bow side or the stern side of the hull. However, it goes without saying that the number of the thruster trunks (200) and thruster units (100) may vary depending on the size or structure of the ship.

The thruster access trunk (300) may be provided as a vertically elongated rectangular space provided at the front or rear side of the thruster trunk (200) as illustrated in FIG. 1, and may be provided at the same height as the thruster trunk (200). In addition, the thruster access trunk (300) may be provided as a plurality of floors in which various units for operating the thruster unit (100) as illustrated in FIG. 2 and various units for managing facilities inside the thruster trunk (200), the thruster access trunk (300), and the thruster void (400) are provided, and each floor may be connected by stairs or/and ladders to facilitate the movement of workers or equipment.

For example, the thruster access trunk (300) may include a drainage unit layer (310), a fueling unit layer (320), a water separation unit layer (330), and a first monitoring unit layer (440) that are sequentially stacked from the bottom to the top as illustrated in FIGS. 1 and 2.

A bilge pump (311) for discharging bilge to the lower side of the thruster trunk (200) and a pipe (not shown) for discharging seawater that has flowed into the thruster trunk (200) may be provided in the drainage unit layer (310).

In the fueling unit layer (320), a fueling unit (321) that supplies and circulates lubricating oil to maintain sealing between the thruster unit (100) and the hull toward the thruster unit (100) and a pipe (not shown) extending therefrom may be provided.

A water separator (331) including a filter for separating and removing moisture contained in lubricating oil supplied to the thruster unit (100) by the oil supply unit (321) may be provided in the water separation unit layer (330).

The first monitoring unit layer (340) may be provided with a first monitoring unit (341) capable of monitoring the state of lubricating oil supplied to the thruster unit (100) and the sealing state between the thruster unit (100) and the hull.

In addition, the lubricating unit (321), the water separator (331), and the first monitoring unit (341) may be provided in the same number as the thruster units (100) so as to supply lubricating oil to each thruster unit (100) and to separate and remove moisture from the supplied lubricating oil and monitor it.

Meanwhile, the thruster void (400) is a vertically elongated rectangular space provided to face the thruster access trunk (300) based on the thruster trunk (200) as shown in FIG. 1 and FIG. 4, and may be provided to be connected to the thruster access trunk (300) on the front or rear side of the thruster trunk (200) where the thruster access trunk (300) is not provided.

Additionally, the thruster void (400) may further include a passage-shaped space connected to the thruster access trunk (300) on both sides of the thruster trunk (200), as illustrated in FIG. 3.

Meanwhile, the thruster maintenance space (500) may be provided as a rectangular hexahedral space above the thruster trunk (200), the thruster access trunk (300), and the thruster void (400) as illustrated in FIGS. 1 and 3. In addition, the thruster maintenance space (500) may be provided as a plurality of floors in which, as illustrated in FIGS. 1 and 2, various units for operating the thruster unit (100) similar to the thruster access trunk (300) and various units capable of managing facilities inside the thruster trunk (200), the thruster access trunk (300), the thruster void (400), and the thruster maintenance space (500) are provided, and each floor may be connected by stairs or/and ladders to facilitate movement of workers or equipment.

For example, the thruster maintenance space (500) may include a lubrication unit layer (510), a second monitoring unit layer (520), and a pressure control unit layer (530) that are sequentially stacked on top of the thruster access trunk (300).

A lubrication unit layer (510) may be provided with a transfer pump (511) for supplying lubricating oil, etc. to the thruster unit (100). In addition, a second monitoring unit layer (520) may be provided with a first monitoring unit (341) and a second monitoring unit (521) for monitoring the state of the lubricating oil supplied to the thruster unit (100) and the sealing state between the thruster unit (100) and the hull.

In addition, the pressure control unit layer (530) may store lubricating oil, etc. supplied to the thruster unit (100) by the transfer pump (511), and a pressure control tank (531) capable of controlling the pressure of the lubricating oil, etc. supplied from the transfer pump (511) may be provided.

In addition, the thruster maintenance space (500) further includes a crane (540) capable of transporting the thruster unit (100) from the thruster trunk (100) side to the thruster maintenance space (500) side or from the thruster maintenance space (500) side to the thruster trunk (100) side in the internal space, and the upper surface may be provided to form a hull deck (550) of a ship to which the installation structure of the ship thruster according to the present invention is applied.

At this time, the deck (550) may be provided with a thrust unit discharge hatch (551) so that the thruster unit (100) can be discharged from the thruster maintenance space (500) to the outside of the hull as shown in FIGS. 1 and 3.

Accordingly, the installation structure of the ship thruster according to the present invention can greatly improve the space utilization of the ship since the thruster unit (100) and a plurality of units for driving and maintaining the thruster unit can be efficiently arranged in a relatively narrow space.

In addition, the installation structure of the ship thruster according to the present invention can secure a space for easy entry and exit of workers, such as a thrust access trunk (300) and a thruster maintenance space (500), for simple maintenance of the thruster unit (100) and a plurality of units for driving and maintaining it within the hull, and the thruster unit (100) can be easily discharged outside the hull, thereby significantly reducing the time required for maintenance or repair of the thruster unit (100) and the units for driving and maintaining it.

Although specific embodiments of the installation structure of a ship thruster according to the present invention have been described so far, it is obvious that various modifications are possible within the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims described below but also by equivalents of these claims.

That is, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive, and the scope of the present invention is indicated by the patent registration claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the patent registration claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

100. Thruster Unit 110. Thrust Base
120. Thruster drive unit 130. Tunnel unit
131. Propeller 200. Thruster Trunk
210. Thruster unit mounting 220. Thruster trunk hatch
300. Thruster Access Trunk 310. Drainage Unit Floor
311. Bilge pump 320. Fueling unit floor
321. Fueling unit 330. Water separation unit layer
331. Water separator 340. First monitoring unit layer
341. First monitoring unit 400. Thrust void
500. Thruster maintenance space 510. Transfer unit floor
511. Transfer pump 520. Second monitoring unit layer
521. Second monitoring unit 530. Pressure control unit layer
531. Pressure regulating tank 540. Crane
550. Deck 551. Thrust unit discharge hatch

Claims (8)

A thruster unit that provides propulsion to the hull;
A thruster trunk provided on the bow or stern side of the hull and in which the thruster unit is installed;
A thruster access trunk provided on the front or rear side of the above thruster trunk;
A thruster void provided to be connected to the thruster access trunk on the forward or rear side of the thruster trunk where the thruster access trunk is not provided; and
An installation structure for a ship's thruster, including: a thruster trunk; a thruster access trunk; and a thruster maintenance space provided on the upper side of the thruster void. In the first paragraph,
The above thruster unit
thruster base;
A thruster drive unit provided on the upper part of the thruster base; and
An installation structure for a ship thruster, comprising: a tunnel section provided at the lower portion of the thruster base and having a propeller provided inside that receives rotational power from the thruster drive section and provides propulsive power to the hull; In the second paragraph,
The above thruster trunk
A thrust unit mounting portion on which the thruster base is mounted on the lower surface side of the thruster trunk; and
An installation structure for a ship's thruster, comprising: a thruster trunk hatch which can be opened and closed on the upper surface side of the thruster trunk so as to be connected to the thruster maintenance space; In the first paragraph,
The above thruster trunk
An installation structure for a ship's thruster, wherein three thrusters are spaced apart between the thruster access trunk and the thruster void. In the first paragraph,
The above thruster trunk
An installation structure for a ship's thruster, wherein the thruster access trunk and the thruster void are provided at the same height. In the first paragraph,
The above thruster access trunk is
A drainage unit layer provided in the lower space of the above thruster access trunk;
A refueling unit layer laminated on the upper side of the above drainage unit layer;
A water separation unit layer laminated on the upper side of the above-mentioned fuel unit layer; and
An installation structure of a ship thruster, comprising: a first monitoring unit layer laminated on the upper side of the water separation unit layer; In Article 6,
The above thruster maintenance space is
A transfer unit layer laminated on the upper side of the first monitoring unit layer;
A second monitoring unit layer laminated on the upper side of the above transport unit layer;
An installation structure of a ship thruster, including a pressure regulating unit layer laminated on the upper side of the second monitoring unit layer. In the first paragraph,
The above thruster maintenance space is
A thrust crane provided adjacent to the lower side of the deck of the hull forming the upper surface of the thruster maintenance space; and
An installation structure for a ship's thruster, comprising: a thrust unit discharge hatch provided on the deck so that the thrust unit can be discharged from the thruster maintenance space to the outside of the hull or introduced into the thruster maintenance space from the outside of the hull.