KR20220000659A - Sloshing reducing apparatus for storage tank of liquefied cargo - Google Patents

Sloshing reducing apparatus for storage tank of liquefied cargo Download PDF

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Publication number
KR20220000659A
KR20220000659A KR1020200078545A KR20200078545A KR20220000659A KR 20220000659 A KR20220000659 A KR 20220000659A KR 1020200078545 A KR1020200078545 A KR 1020200078545A KR 20200078545 A KR20200078545 A KR 20200078545A KR 20220000659 A KR20220000659 A KR 20220000659A
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South Korea
Prior art keywords
storage tank
cargo storage
liquid cargo
sloshing
fan
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KR1020200078545A
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Korean (ko)
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신상명
박태윤
정성훈
최봉균
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삼성중공업 주식회사
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Priority to KR1020200078545A priority Critical patent/KR20220000659A/en
Publication of KR20220000659A publication Critical patent/KR20220000659A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0027—Varying behaviour or the very pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0072—Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/648—Mounting; Assembling; Disassembling of axial pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0689—Methods for controlling or regulating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/016—Preventing slosh
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships

Abstract

Disclosed is a sloshing reducing apparatus for a liquid cargo storage tank. According to one aspect of the present invention, the sloshing reducing apparatus, for reducing the sloshing phenomenon of a liquid cargo storage tank, comprises: a fan disposed under the liquid cargo storage tank to generate a fluid flow of liquid cargo; a motion sensor detecting the inclination of the liquid cargo storage tank; and a control unit adjusting the flow direction of the fluid generated by the fan based on the detection result of the motion sensor.

Description

액상화물 저장탱크의 슬로싱 저감 장치{SLOSHING REDUCING APPARATUS FOR STORAGE TANK OF LIQUEFIED CARGO}SLOSHING REDUCING APPARATUS FOR STORAGE TANK OF LIQUEFIED CARGO

본 발명은 액상화물 저장탱크의 슬로싱 저감 장치에 관한 것이다.The present invention relates to an apparatus for reducing sloshing of a liquid cargo storage tank.

액상화물, 예를 들어 액화천연가스(LNG, Liquefied Natural Gas)를 운반하는 선박에는 액상화물 저장탱크가 설치되는데, 이러한 액상화물 저장탱크에서는 선박의 움직임 또는 흔들림에 따라 액상화물이 출렁이는 슬로싱(sloshing) 현상이 발생할 수 있다.A liquid cargo storage tank is installed on a ship transporting liquid cargo, for example, liquefied natural gas (LNG). (sloshing) may occur.

슬로싱 현상은 액상화물 저장탱크에 충격력을 발생시켜 구조적 파손을 초래할 수 있다. 따라서, 액상화물 저장탱크에서의 슬로싱 현상을 억제할 수 있는 대책이 요구된다.The sloshing phenomenon may cause structural damage by generating an impact force in the liquid cargo storage tank. Therefore, a countermeasure capable of suppressing the sloshing phenomenon in the liquid cargo storage tank is required.

대한민국 등록특허공보 제10-1348358호(2014.01.08, 선박의 화물창)Republic of Korea Patent Publication No. 10-1348358 (2014.01.08, Ship's cargo hold)

본 발명의 실시 예는 액상화물 저장탱크에서의 슬로싱 현상을 억제할 수 있는 액상화물 저장탱크의 슬로싱 저감 장치를 제공한다.An embodiment of the present invention provides an apparatus for reducing sloshing of a liquid cargo storage tank capable of suppressing a sloshing phenomenon in the liquid cargo storage tank.

본 발명의 일 측면에 따르면, 액상화물 저장탱크의 슬로싱 현상을 저감하기 위한 슬로싱 저감 장치에 있어서, 상기 액상화물 저장탱크의 하부에 배치되어, 액상화물의 유체 흐름을 생성하는 팬; 상기 액상화물 저장탱크의 기울어짐을 감지하는 동작센서; 및 상기 동작센서의 감지 결과를 기초로 상기 팬에 의해 생성되는 유체 흐름 방향을 조절하는 제어부를 포함하는 액상화물 저장탱크의 슬로싱 저감 장치가 제공될 수 있다.According to an aspect of the present invention, there is provided a sloshing reduction device for reducing the sloshing phenomenon of a liquefied cargo storage tank, comprising: a fan disposed under the liquefied cargo storage tank to generate a fluid flow of the liquefied cargo; a motion sensor for detecting the inclination of the liquid cargo storage tank; And based on the detection result of the motion sensor, the sloshing reduction device of the liquefied cargo storage tank including a control unit for adjusting the flow direction of the fluid generated by the fan may be provided.

상기 제어부는 상기 동작센서의 감지 결과를 기초로 상기 액상화물 저장탱크의 기울어짐에 따라 생성되는 슬로싱 방향을 판단하고, 상기 유체 흐름 방향이 상기 슬로싱 방향의 반대 방향이 되도록 상기 팬의 회전 방향을 제어할 수 있다.The control unit determines the sloshing direction generated according to the inclination of the liquid cargo storage tank based on the detection result of the motion sensor, and the rotation direction of the fan so that the fluid flow direction is opposite to the sloshing direction can be controlled.

상기 팬은, 상기 유체 흐름 방향을 따라 상호간에 이격 배치되는 복수의 제1 축류팬을 포함할 수 있다.The fan may include a plurality of first axial flow fans spaced apart from each other along the fluid flow direction.

상기 팬은, 상기 제1 축류팬 상에 배치되는 제2 축류팬을 포함할 수 있다.The fan may include a second axial fan disposed on the first axial fan.

상기 액상화물 저장탱크의 바닥면에 설치되어 상기 제1 축류팬을 지지하는 지지부를 포함하고, 상기 지지부는, 상기 액상화물 저장탱크에 결합되는 하부 프레임; 상기 제1 축류팬에 결합되는 상부 프레임; 및 상기 하부 프레임에 설치되어 상기 상부 프레임을 회전시키는 각도조절부를 포함하고, 상기 제어부는 상기 제1 축류팬의 회전축이 상기 액상화물 저장탱크가 기울어지는 방향으로 기울어지도록 상기 각도조절부를 제어할 수 있다.It is installed on the bottom surface of the liquefied cargo storage tank and includes a support for supporting the first axial fan, the support portion, the lower frame coupled to the liquefied cargo storage tank; an upper frame coupled to the first axial fan; and an angle adjusting unit installed on the lower frame to rotate the upper frame, wherein the control unit may control the angle adjusting unit so that the rotating shaft of the first axial flow fan is inclined in a direction in which the liquid cargo storage tank is inclined. .

상기 액상화물 저장탱크는 수평 방향으로 연장되는 실린더 형상(C-type)의 탱크이고, 상기 유체 흐름 방향은 상기 액상화물 저장탱크의 길이 방향과 평행할 수 있다.The liquid cargo storage tank may be a cylinder-shaped (C-type) tank extending in a horizontal direction, and the fluid flow direction may be parallel to a longitudinal direction of the liquid cargo storage tank.

본 발명의 실시 예에 따르면, 액상화물 저장탱크의 기울어짐에 따라 생성되는 슬로싱 방향을 판단한 후, 팬에 의해 슬로싱 방향의 반대 방향으로의 유체 흐름을 생성함으로써 슬로싱 현상을 억제할 수 있다.According to an embodiment of the present invention, after determining the sloshing direction generated according to the inclination of the liquefied cargo storage tank, the sloshing phenomenon can be suppressed by generating a fluid flow in the opposite direction to the sloshing direction by the fan. .

도 1은 본 발명의 일 실시 예에 따른 액상화물 저장탱크의 슬로싱 저감 장치의 도면이고,
도 2는 제어부의 도면이고,
도 3 및 도 4는 도 1의 작동 예이고,
도 5는 도 4의 변형 예이고,
도 6은 도 4의 다른 변형 예이다.1 is a view of an apparatus for reducing sloshing of a liquefied cargo storage tank according to an embodiment of the present invention;
2 is a diagram of a control unit;
3 and 4 are examples of operation of FIG. 1,
Figure 5 is a modified example of Figure 4,
FIG. 6 is another modified example of FIG. 4 .

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일 실시 예에 따른 액상화물 저장탱크의 슬로싱 저감 장치의 도면이고, 도 2는 제어부의 도면이고, 도 3 및 도 4는 도 1의 작동 예이다.1 is a view of an apparatus for reducing sloshing of a liquefied cargo storage tank according to an embodiment of the present invention, FIG. 2 is a view of a control unit, and FIGS. 3 and 4 are operational examples of FIG. 1 .

도 1 내지 도 4를 참조하면, 본 발명의 일 실시 예에 따른 액상화물 저장탱크의 슬로싱 저감 장치(10)는 액상화물 저장탱크(20)의 슬로싱 현상을 저감하기 위한 것으로서, 팬(100), 동작센서(200) 및 제어부(300)를 포함할 수 있다.1 to 4 , the device 10 for reducing sloshing of a liquefied cargo storage tank according to an embodiment of the present invention is for reducing the sloshing phenomenon of the liquefied cargo storage tank 20, and the fan 100 ), a motion sensor 200 and a control unit 300 may be included.

액상화물 저장탱크(20)는 액상화물, 예를 들어 액화천연가스(LNG, Liquefied Natural Gas)를 저장하는 탱크로서 선박(30) 등에 설치될 수 있다. 예를 들어, 액상화물 저장탱크(20)는 선박(30)의 데크 상에 설치된 한 쌍의 새들(saddle) 상에 안착될 수 있다.The liquid cargo storage tank 20 may be installed in the ship 30 as a tank for storing liquid cargo, for example, liquefied natural gas (LNG). For example, the liquid cargo storage tank 20 may be seated on a pair of saddles installed on the deck of the ship 30 .

따라서, 액상화물 저장탱크(20)에서는 선박(30)의 움직임 또는 흔들림에 따라 액상화물 저장탱크(20)에 저장된 액상화물이 출렁이는 슬로싱(sloshing) 현상이 발생할 수 있다.Accordingly, in the liquid cargo storage tank 20 , a sloshing phenomenon in which the liquid cargo stored in the liquid cargo storage tank 20 sways may occur according to the movement or shaking of the ship 30 .

일 예로, 액상화물 저장탱크(20)는 수평 방향으로 연장되는 실린더 형상(C-type)의 탱크일 수 있다. 이 경우, 액상화물 저장탱크(20)의 길이 방향으로의 슬로싱 현상이 주로 문제될 수 있다. 따라서, 본 발명에서는 슬로싱 현상을 억제하는 팬(100)이 액상화물 저장탱크(20)의 길이 방향과 평행한 방향으로의 유체 흐름을 생성하도록 배치될 수 있다.For example, the liquid cargo storage tank 20 may be a cylinder-shaped (C-type) tank extending in the horizontal direction. In this case, the sloshing phenomenon in the longitudinal direction of the liquid cargo storage tank 20 may be mainly a problem. Therefore, in the present invention, the fan 100 for suppressing the sloshing phenomenon may be arranged to generate a fluid flow in a direction parallel to the longitudinal direction of the liquefied cargo storage tank 20 .

그러나, 반드시 이에 한정되는 것은 아니고, 액상화물 저장탱크(20)는 다른 형상일 수도 있다.However, the present invention is not necessarily limited thereto, and the liquid cargo storage tank 20 may have a different shape.

팬(100)은 액상화물 저장탱크(20)에 저장된 액상화물에 잠기도록 액상화물 저장탱크(20)의 하부에 배치되어 액상화물의 유체 흐름을 생성할 수 있다.The fan 100 may be disposed under the liquid cargo storage tank 20 to be submerged in the liquid cargo stored in the liquid cargo storage tank 20 to generate a fluid flow of the liquid cargo.

팬(100)은 팬(100)에 의해 생성되는 유체 흐름 방향, 예를 들어 액상화물 저장탱크(20)의 길이 방향을 따라 상호간에 이격되도록 배치되는 복수의 제1 축류팬(110)을 포함할 수 있다.The fan 100 may include a plurality of first axial flow fans 110 disposed to be spaced apart from each other along the fluid flow direction generated by the fan 100 , for example, the longitudinal direction of the liquid cargo storage tank 20 . can

제1 축류팬(110)은 액상화물 저장탱크(20)의 길이 방향으로의 유체 흐름을 생성할 수 있다.The first axial fan 110 may generate a fluid flow in the longitudinal direction of the liquid cargo storage tank 20 .

동작센서(200) 및 제어부(300)는 액상화물 저장탱크(20) 또는 선박(30)에 설치될 수 있다.The motion sensor 200 and the control unit 300 may be installed in the liquid cargo storage tank 20 or the ship 30 .

동작센서(200)는 액상화물 저장탱크(20)의 기울어짐을 감지할 수 있다. 예를 들어, 동작센서(200)는 액상화물 저장탱크(20)의 길이 방향의 중심축이 수평면에 대하여 기울어지는 각도를 실시간으로 감지하여 액상화물 저장탱크(20)의 기울어짐을 간접적으로 감지할 수도 있다.The motion sensor 200 may detect the inclination of the liquid cargo storage tank 20 . For example, the motion sensor 200 may indirectly detect the inclination of the liquid cargo storage tank 20 by detecting in real time an angle at which the central axis in the longitudinal direction of the liquid cargo storage tank 20 is inclined with respect to the horizontal plane. have.

제어부(300)는 동작센서(200)의 감지 결과를 기초로 팬(100)에 의해 생성되는 유체 흐름 방향(F)을 조절할 수 있다.The controller 300 may adjust the fluid flow direction F generated by the fan 100 based on the detection result of the motion sensor 200 .

구체적으로, 제어부(300)는 동작센서(200)의 감지 결과를 기초로 액상화물 저장탱크(20)의 기울어짐에 따라 생성되는 슬로싱 방향(S)을 판단할 수 있고, 팬(100)에 의한 유체 흐름 방향(F)이 슬로싱 방향(S)의 반대 방향이 되도록 팬(100)의 회전 방향을 제어할 수 있다.Specifically, the control unit 300 can determine the sloshing direction (S) generated according to the inclination of the liquid cargo storage tank 20 based on the detection result of the motion sensor 200, the fan 100 The rotation direction of the fan 100 may be controlled so that the fluid flow direction F by the sloshing direction S is opposite to the sloshing direction S.

일 예로, 액상화물 저장탱크(20)가 도 3에 도시된 것처럼 왼쪽으로 기울어지면, 슬로싱 방향(S)은 왼쪽을 향할 수 있고, 제어부(300)는 팬(100)을 정 회전시켜 팬(100)에 의한 유체 흐름 방향(F)이 오른쪽을 향하게 할 수 있다.As an example, when the liquid cargo storage tank 20 is inclined to the left as shown in FIG. 3 , the sloshing direction S may face to the left, and the controller 300 rotates the fan 100 forward to the fan ( The fluid flow direction (F) by 100) can be directed to the right.

다른 예로, 액상화물 저장탱크(20)가 도 4에 도시된 것처럼 오른쪽으로 기울어지면, 슬로싱 방향(S)은 오른쪽을 향할 수 있고, 제어부(300)는 팬(100)을 역 회전시켜 팬(100)에 의한 유체 흐름 방향(F)이 왼쪽을 향하게 할 수 있다.As another example, when the liquefied cargo storage tank 20 is inclined to the right as shown in FIG. 4 , the sloshing direction S may face to the right, and the control unit 300 rotates the fan 100 in reverse to rotate the fan ( The fluid flow direction (F) by 100) can be directed to the left.

도 5는 도 4의 변형 예이다.FIG. 5 is a modified example of FIG. 4 .

도 5를 참조하면, 제1 축류팬(110) 상에는 제2 축류팬(120)이 각각 배치될 수 있다.Referring to FIG. 5 , the second axial fan 120 may be respectively disposed on the first axial fan 110 .

제2 축류팬(120)은 제1 축류팬(110)과 동일한 방향, 예를 들어 액상화물 저장탱크(20)의 길이 방향으로의 유체 흐름을 생성할 수 있다. 따라서, 슬로싱 저감 효과가 향상될 수 있다.The second axial fan 120 may generate a fluid flow in the same direction as the first axial fan 110 , for example, in the longitudinal direction of the liquid cargo storage tank 20 . Accordingly, the sloshing reduction effect can be improved.

도 6은 도 4의 다른 변형 예이다.FIG. 6 is another modified example of FIG. 4 .

도 6을 참조하면, 슬로싱 저감 장치(10)는 지지부(400)를 더 포함할 수도 있다.Referring to FIG. 6 , the sloshing reduction device 10 may further include a support unit 400 .

지지부(400)는 액상화물 저장탱크(20)의 바닥면에 설치되어 제1 축류팬(110)을 지지할 수 있다.The support part 400 may be installed on the bottom surface of the liquid cargo storage tank 20 to support the first axial fan 110 .

예를 들어, 지지부(400)는 액상화물 저장탱크(20)에 결합되는 하부 프레임(410), 제1 축류팬(110)에 결합되는 상부 프레임(420), 및 하부 프레임(410)에 설치되어 상부 프레임(420)을 회전시키는 각도조절부(430)를 포함할 수 있다.For example, the support unit 400 is installed on the lower frame 410 coupled to the liquid cargo storage tank 20 , the upper frame 420 coupled to the first axial fan 110 , and the lower frame 410 . It may include an angle adjusting unit 430 for rotating the upper frame 420 .

각도조절부(430)는 모터를 포함할 수 있지만, 반드시 이에 한정되는 것은 아니다.The angle adjusting unit 430 may include a motor, but is not limited thereto.

각도조절부(430)는 제어부(300)에 의해 제어될 수 있다. 구체적으로, 제어부(300)는 제1 축류팬(110)의 회전축이 액상화물 저장탱크(20)가 기울어지는 방향으로 기울어지도록 각도조절부(430)를 제어할 수 있다. 따라서, 제1 축류팬(110)에 의한 유체 흐름이 액상화물의 상부까지 영향을 주게 되어 슬로싱 저감 효과가 향상될 수 있다.The angle adjustment unit 430 may be controlled by the control unit 300 . Specifically, the control unit 300 may control the angle adjusting unit 430 so that the rotation shaft of the first axial fan 110 is inclined in the direction in which the liquid cargo storage tank 20 is inclined. Therefore, the fluid flow by the first axial fan 110 affects the upper portion of the liquefied material, so that the sloshing reduction effect can be improved.

이상에서 본 발명의 바람직한 실시 예를 중심으로 설명하였으나, 이는 단지 예시일 뿐 본 발명을 한정하는 것이 아니다. 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 청구범위에 기재된 본 발명의 기술사상으로부터 벗어나지 않는 범위 내에서 구성요소의 부가, 변경, 삭제 또는 추가 등에 의해 실시 예를 다양하게 수정 및 변경시킬 수 있을 것이며, 이 또한 본 발명의 권리범위 내에 포함된다고 할 것이다.In the above, the preferred embodiment of the present invention has been mainly described, but this is merely an example and does not limit the present invention. Those of ordinary skill in the art to which the present invention pertains can variously modify and change the embodiment by adding, changing, deleting or adding components within the scope that does not depart from the technical spirit of the present invention described in the claims. It will be possible, and this will also be said to be included within the scope of the present invention.

10: 슬로싱 저감 장치 20: 액상화물 저장탱크
30: 선박 100: 팬
110: 제1 축류팬 120: 제2 축류팬
200: 동작센서 300: 제어부
400: 지지부 410: 하부 프레임
420: 상부 프레임 430: 각도조절부10: sloshing reduction device 20: liquid cargo storage tank
30: ship 100: fan
110: first axial fan 120: second axial fan
200: motion sensor 300: control unit
400: support 410: lower frame
420: upper frame 430: angle adjustment unit

Claims (4)

액상화물 저장탱크의 슬로싱 현상을 저감하기 위한 슬로싱 저감 장치에 있어서,
상기 액상화물 저장탱크의 하부에 배치되어, 액상화물의 유체 흐름을 생성하는 팬;
상기 액상화물 저장탱크의 기울어짐을 감지하는 동작센서; 및
상기 동작센서의 감지 결과를 기초로 상기 팬에 의해 생성되는 유체 흐름 방향을 조절하는 제어부를 포함하는 액상화물 저장탱크의 슬로싱 저감 장치.In the sloshing reduction device for reducing the sloshing phenomenon of the liquid cargo storage tank,
a fan disposed under the liquefied cargo storage tank to generate a fluid flow of the liquefied cargo;
a motion sensor for detecting the inclination of the liquid cargo storage tank; and
Sloshing reduction device of a liquid cargo storage tank including a control unit for adjusting the flow direction of the fluid generated by the fan based on the detection result of the motion sensor. 제1항에 있어서,
상기 제어부는 상기 동작센서의 감지 결과를 기초로 상기 액상화물 저장탱크의 기울어짐에 따라 생성되는 슬로싱 방향을 판단하고, 상기 유체 흐름 방향이 상기 슬로싱 방향의 반대 방향이 되도록 상기 팬의 회전 방향을 제어하는 액상화물 저장탱크의 슬로싱 저감 장치.According to claim 1,
The control unit determines the sloshing direction generated according to the inclination of the liquid cargo storage tank based on the detection result of the motion sensor, and the rotation direction of the fan so that the fluid flow direction is opposite to the sloshing direction A device for reducing sloshing of a liquid cargo storage tank that controls 제1항에 있어서,
상기 팬은,
상기 유체 흐름 방향을 따라 상호간에 이격 배치되는 복수의 제1 축류팬을 포함하는 액상화물 저장탱크의 슬로싱 저감 장치.According to claim 1,
the fan,
A device for reducing sloshing of a liquid cargo storage tank including a plurality of first axial flow fans spaced apart from each other along the fluid flow direction. 제3항에 있어서,
상기 액상화물 저장탱크의 바닥면에 설치되어 상기 제1 축류팬을 지지하는 지지부를 포함하고,
상기 지지부는,
상기 액상화물 저장탱크에 결합되는 하부 프레임;
상기 제1 축류팬에 결합되는 상부 프레임; 및
상기 하부 프레임에 설치되어 상기 상부 프레임을 회전시키는 각도조절부를 포함하고,
상기 제어부는 상기 제1 축류팬의 회전축이 상기 액상화물 저장탱크가 기울어지는 방향으로 기울어지도록 상기 각도조절부를 제어하는 액상화물 저장탱크의 슬로싱 저감 장치.4. The method of claim 3,
and a support part installed on the bottom surface of the liquid cargo storage tank to support the first axial flow fan,
The support part,
a lower frame coupled to the liquid cargo storage tank;
an upper frame coupled to the first axial fan; and
It is installed on the lower frame and includes an angle adjusting unit for rotating the upper frame,
The control unit is an apparatus for reducing sloshing of a liquefied cargo storage tank for controlling the angle adjusting unit so that the rotation shaft of the first axial fan is inclined in a direction in which the liquid cargo storage tank is inclined.
KR1020200078545A 2020-06-26 2020-06-26 Sloshing reducing apparatus for storage tank of liquefied cargo KR20220000659A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101348358B1 (en) 2012-02-03 2014-01-08 삼성중공업 주식회사 cargo tank of ship

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101348358B1 (en) 2012-02-03 2014-01-08 삼성중공업 주식회사 cargo tank of ship

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