KR101869446B1 - Apparatus for reducing sloshing of liquid cargo - Google Patents

Apparatus for reducing sloshing of liquid cargo Download PDF

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Publication number
KR101869446B1
KR101869446B1 KR1020160174560A KR20160174560A KR101869446B1 KR 101869446 B1 KR101869446 B1 KR 101869446B1 KR 1020160174560 A KR1020160174560 A KR 1020160174560A KR 20160174560 A KR20160174560 A KR 20160174560A KR 101869446 B1 KR101869446 B1 KR 101869446B1
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South Korea
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tank
outer tank
liquid cargo
inner tank
elastic plate
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KR1020160174560A
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Korean (ko)
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박규식
하태휴
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주식회사 포스코
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/52—Anti-slosh devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/021—Decoupling of vibrations by means of point-of-contact supports, e.g. ball bearings
    • 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
    • F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
    • 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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • B63B2701/10—
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F17C2205/0149—Vessel mounted inside another one
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0196—Details of mounting arrangements with shock absorbing means
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Disclosed is a liquid cargo sloshing abatement apparatus. The liquid cargo sloshing abatement apparatus according to an embodiment of the present invention comprises: an internal tank for storing liquid cargo; an outer tank including an inner tank in an isolated state inside; and a plurality of pivoting members disposed on the inner lower bottom surface of the outer tank to support the inner tank from below and to maintain a distance between the inner tank and the outer tank. The pivoting member is formed in a bead shape and is inserted into a plurality of grooves formed on the inner lower bottom surface of the outer tank so as to protrude. In addition, the pivoting member rotates in place according to wobbles of the inner tank, thereby minimizing movement of the inner tank in the isolated state, thereby reducing slosh of the liquid cargo.

Description

액체화물 슬로싱 저감장치{APPARATUS FOR REDUCING SLOSHING OF LIQUID CARGO}[0001] APPARATUS FOR REDUCING SLOSHING OF LIQUID CARGO [0002]

본 발명은 액체화물 슬로싱 저감장치에 관한 것이다.The present invention relates to a liquid cargo sloshing reduction apparatus.

액체화물을 저장하는 선박의 저장탱크에는 선박의 흔들림 등으로 인한 슬로싱이 발생한다. 이러한 슬로싱으로 인해 저장탱크 내벽에 압력하중이 과도하게 발생하게 되면 저장탱크의 변형 및 파괴가 발생할 수 있다.Sloshing is caused in the storage tank of the ship storing the liquid cargo due to vibration of the ship or the like. If the pressure load is excessively generated on the inner wall of the storage tank due to such sloshing, the storage tank may be deformed and destroyed.

종래에는 이러한 슬로싱을 저감시키기 위해 다양한 기술을 공개한 바 있다. 예컨대, 한국등록특허 제10-1644715호(2016.07.26. 등록)에서는 표면유동저감막을 저장탱크 내의 액체화물 수면 위에 설치하는 기술을 개시한 바 있다. 그러나 이러한 종래의 기술은 지속적으로 발생하는 저장탱크의 흔들림으로 인해 실질적으로 액체화물의 슬로싱 크기를 저감시키기에는 한계가 있었다.Conventionally, various techniques have been disclosed to reduce such sloshing. For example, Korean Patent Registration No. 10-1644715 (Registered on Jul. 26, 2016) discloses a technique for installing a surface flow reduction membrane on a liquid storage surface in a storage tank. However, this conventional technique has a limit to substantially reduce the sloshing size of the liquid cargo due to the constant shaking of the storage tank.

한국등록특허 제10-1644715호(2016.07.26. 등록)Korean Registered Patent No. 10-1644715 (registered on July 26, 2016)

본 발명의 실시 예는 내부탱크와 외부탱크를 포함하는 이중구조의 저장탱크를 마련하고, 내부탱크의 흔들림을 최소화시켜 내부탱크에 저장된 액체화물의 슬로싱을 저감시키는 액체화물 슬로싱 저감장치를 제공하고자 한다.The embodiment of the present invention provides a double-structured storage tank including an internal tank and an external tank, and provides a liquid cargo sloshing reduction apparatus that minimizes the shaking of the internal tank and reduces sloshing of the liquid cargo stored in the internal tank I want to.

본 발명의 일 측면에 따르면, 액체화물을 저장하는 내부탱크; 내측에 격리된 상태의 상기 내부탱크를 포함하는 외부탱크; 및 상기 외부탱크의 내측 하부 바닥면에 배치되어 상기 내부탱크를 하부에서 지지하며, 상기 내부탱크와 상기 외부탱크 간 이격된 거리가 유지되도록 하는 복수의 회동부재;를 포함하며, 상기 회동부재는 구슬 형태로 마련되되, 상기 외부탱크의 내측 하부 바닥면에 형성된 복수의 홈에 돌출되게 각각 삽입되며, 상기 내부탱크의 흔들림에 따라 제자리에서 돌게 되어 격리된 상태의 상기 내부탱크의 이동을 최소화시켜 상기 액체화물의 슬로싱을 저감시키는 액체화물 슬로싱 저감장치가 제공될 수 있다.According to an aspect of the present invention, there is provided an internal tank for storing a liquid cargo; An outer tank including the inner tank in an insulated state; And a plurality of pivoting members disposed on an inner lower bottom surface of the outer tank to support the inner tank from below and maintain a distance between the inner tank and the outer tank, And is protruded into a plurality of grooves formed on an inner lower bottom surface of the outer tank and is rotated in place in accordance with the swing of the inner tank to minimize movement of the inner tank in an isolated state, A liquid cargo sloshing reduction apparatus for reducing sloshing of cargo can be provided.

상기 내부탱크의 좌우측에 각각 마련되되, 상기 외부탱크의 내측 상부와 하부에 양측이 고정되어, 좌우측으로 흔들리는 상기 내부탱크에 의한 충격을 완화시키는 탄성플레이트를 더 포함할 수 있다.And an elastic plate provided on each of left and right sides of the inner tank and fixed to the upper and lower portions of the inner side of the outer tank so as to mitigate the impact of the inner tank shaking to the left and right.

상기 탄성플레이트와 상기 외부탱크의 내측 좌우면 사이에 하나 이상 배치되며, 상기 탄성플레이트를 통해 전달된 충격을 감쇠시키는 감쇠장치를 더 포함하되,And at least one damping device disposed between the elastic plate and the inner side surface of the outer tank for damping an impact transmitted through the elastic plate,

상기 감쇠장치는 상기 탄성플레이트에 일측이 고정된 로드와, 상기 로드의 타측에 일면이 연결된 상태에서 실린더 내측의 하부에 타면이 고정된 스프링과, 상기 실린더와 상기 외부탱크의 내측면을 연결하는 지지바를 포함하고, 상기 충격에 의해 상기 로드는 상기 스프링을 압축시킨 후 상기 스프링의 복원력에 의해 원위치될 수 있다.The damping device includes a rod having one side fixed to the elastic plate, a spring fixed on the other side of the inside of the cylinder in a state where one side is connected to the other side of the rod, Wherein the rod can be retracted by the restoring force of the spring after compressing the spring by the impact.

본 발명의 실시 예에 따른 액체화물 슬로싱 저감장치는 내부탱크와 외부탱크를 포함하는 이중구조의 저장탱크를 마련하고, 내부탱크의 흔들림을 최소화시켜 내부탱크에 저장된 액체화물의 슬로싱을 저감시킬 수 있다.The liquid storage sloshing reduction apparatus according to the embodiment of the present invention is provided with a dual storage tank including an internal tank and an external tank and minimizes the shaking of the internal tank to reduce the sloshing of the liquid cargo stored in the internal tank .

도 1은 본 발명의 실시 예에 따른 액체화물 슬로싱 저감장치의 단면도이다.
도 2는 도 1에 도시된 외부탱크의 내측 하부 바닥면에 마련된 회동부재를 나타내는 평면도이다.1 is a cross-sectional view of a liquid cargo sloshing reduction apparatus according to an embodiment of the present invention.
2 is a plan view showing a tilting member provided on an inner lower floor of the outer tank shown in Fig.

이하에서는 본 발명의 실시 예들을 첨부 도면을 참조하여 상세히 설명한다. 이하에 소개되는 실시 예들은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 본 발명의 사상이 충분히 전달될 수 있도록 하기 위해 예로서 제공되는 것이다. 본 발명은 이하 설명되는 실시 예들에 한정되지 않고 다른 형태로 구체화될 수도 있다. 본 발명을 명확하게 설명하기 위하여 설명과 관계없는 부분은 도면에서 생략하였으며 도면들에 있어서, 구성요소의 폭, 길이, 두께 등은 편의를 위하여 과장되어 표현될 수 있다. 명세서 전체에 걸쳐서 동일한 참조번호들은 동일한 구성요소들을 나타낸다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

도 1과 도 2를 참조하면, 본 발명의 실시 예에 따른 액체화물 슬로싱 저감장치(100)는 액체화물을 저장하는 내부탱크(110)와, 내측에 내부탱크(110)를 포함하는 외부탱크(120) 및 외부탱크(120)의 내측 하부 바닥면(122)에 배치되어 내부탱크(110)를 하부에서 지지하며, 내부탱크(110)와 외부탱크(120) 간 이격된 거리가 유지되도록 하는 복수의 회동부재(130)를 포함한다.1 and 2, a liquid cargo sloshing reduction apparatus 100 according to an embodiment of the present invention includes an internal tank 110 for storing liquid cargo, an external tank 110 including an internal tank 110, The inner tank 110 and the outer tank 120 are disposed on the inner lower floor surface 122 of the outer tank 120 and the inner tank 110 to support the inner tank 110 and the outer tank 120, And includes a plurality of tiltable members (130).

이러한 액체화물 슬로싱 저감장치(100)는 각종 액화가스 운반선, 액화연료 RV(Regasification Vessel), 컨테이너선, 일반상선, LNG FPSO(Floating, Production, Storage and Off-loading), LNG FSRU(Floating Storage and Regasification Unit) 등을 포함하는 선박에 적용될 수 있다. Such a liquid cargo sloshing abatement apparatus 100 can be used for various types of liquefied gas carriers, regasification vessels, container ships, general merchant ships, LNG FPSO (Floating, Production, Storage and Off-loading), LNG FSRU Regasification Unit) and so on.

내부탱크(110)는 예컨대 LNG 등 각종 화물을 저장할 수 있다.The inner tank 110 can store various types of cargo such as LNG.

외부탱크(120)는 회동부재(130)에 의해 내부탱크(110)와 일정 거리 이격되며, 선체(2)와 연결된 연결부(4)에 의해 지지된다.The outer tank 120 is spaced apart from the inner tank 110 by a tilting member 130 and is supported by a connecting portion 4 connected to the hull 2.

도 1에 도시된 내부탱크(110) 및 외부탱크(120)의 형태, 선체(2)에 설치되는 방법 등은 종래에 개시된 다양한 형태 및 방법을 따를 수 있고, 변형 가능하다.The shape of the inner tank 110 and the outer tank 120 shown in FIG. 1, the method of installing the inner tank 110 and the method of installing the inner tank 110 on the hull 2, and the like can be modified and modified in various forms and methods.

도 2에 도시한 바와 같이, 회동부재(130)는 구슬 형태로 마련되되, 외부탱크(120)의 내측 하부 바닥면(122)에 형성된 복수의 홈(H1)에 돌출되게 각각 대응되게 삽입된다. 이때, 외부탱크(120)의 내측 하부 바닥면(122)에 형성된 복수의 홈(H1)이 회동부재(130)의 상부 쪽까지 커버하도록 하여 회동부재(130)가 쉽게 빠져나오지 않도록 한다.As shown in FIG. 2, the pivoting member 130 is formed in a bead shape, and is inserted into the plurality of grooves H1 formed on the inner lower surface 122 of the outer tank 120 so as to protrude therefrom. At this time, the plurality of grooves H1 formed on the inner lower bottom surface 122 of the outer tank 120 cover up to the upper side of the tiltable member 130, so that the tiltable member 130 can not easily come out.

회동부재(130)는 내부탱크(110)와 마찰되는 외부탱크(120)의 내측 하부 바닥면(122)에 전반적으로 설치될 수 있다. The tiltable member 130 may be installed generally on the inner lower surface 122 of the outer tank 120 which is rubbed against the inner tank 110.

이러한 회동부재(130)는 내부탱크(110)의 흔들림에 따라 제자리에서 돌게 되어 내부탱크(110)의 이동을 최소화시켜 결과적으로 액체화물의 슬로싱을 저감시킨다. 즉, 회동부재(130)에 의해 외부탱크(120)의 흔들림 대비 내부탱크(110)의 흔들림은 현저하게 감소될 수 있다. 그리고 이로 인해 내부탱크(110) 내의 액체화물의 슬로싱을 효과적으로 감소시킬 수 있다.The pivoting member 130 rotates in place according to the swinging motion of the inner tank 110, minimizing the movement of the inner tank 110, thereby reducing the sloshing of the liquid cargo. That is, the swinging of the inner tank 110 relative to the swinging of the outer tank 120 by the pivoting member 130 can be remarkably reduced. Therefore, the sloshing of the liquid cargo in the inner tank 110 can be effectively reduced.

회동부재(130)는 도 1에 도시한 바와 같이, 외부탱크(120)의 내측 상부 천장면(123)에 형성된 홈(H2)에도 마찬가지로 동일한 형태로 마련될 수 있다. 다른 실시 예에서는 내부탱크(110)를 지지하면서 내부탱크(110)와 일정 거리 이격시키는 외부탱크(120)의 내측 하부 바닥면(122)에 마련된 회동부재(130)만으로도 족하므로 천장면(123)에 형성된 회동부재(130)는 생략될 수 있다.1, the tiltable member 130 may be provided in the same manner in the groove H2 formed in the upper inner ceiling surface 123 of the outer tank 120. [ In another embodiment, since only the tilting member 130 provided on the inner lower bottom surface 122 of the outer tank 120, which supports the inner tank 110 and is separated from the inner tank 110 by a predetermined distance, The pivoting member 130 formed on the base member 130 may be omitted.

또, 액체화물 슬로싱 저감장치(100)는 내부탱크(110)의 좌우측에 각각 마련되되, 외부탱크(120)의 내측 상부와 하부에 양측이 고정되어, 좌우측으로 흔들리는 내부탱크(110)에 의한 충격을 완화시키는 탄성플레이트(140)를 포함할 수 있다.The liquid cargo sloshing reduction apparatus 100 is provided with left and right sides of the inner tank 110 and is provided with an inner tank 110 having both sides fixed to the upper and lower inner sides of the outer tank 120, And an elastic plate 140 for relieving the impact.

탄성플레이트(140)는 예컨대 고무재질의 플레이트 형상으로 마련될 수 있으며, 좌우측으로 흔들리는 내부탱크(110)의 이동을 최소화시키고, 그 충격을 완화시켜 내부탱크(110) 내 액체화물의 슬로싱을 저감시킬 수 있다.The elastic plate 140 may be provided in a plate shape, for example, of a rubber material. The elastic plate 140 minimizes the movement of the inner tank 110 which swings to the left and right sides and alleviates the shock, thereby reducing the sloshing of the liquid cargo in the inner tank 110 .

또, 액체화물 슬로싱 저감장치(100)는 탄성플레이트(140)와 외부탱크(120)의 내측 좌우면을 연결하도록 탄성플레이트(140)와 외부탱크(120)의 내측 좌우면 사이에 하나 이상 배치되며, 탄성플레이트(140)를 통해 전달된 충격을 감쇠시키는 감쇠장치(150)를 포함할 수 있다.The liquid cargo sloshing reduction apparatus 100 may further include at least one elastic plate 140 disposed between the elastic plate 140 and the inner side of the outer tank 120 so as to connect the inner side surfaces of the elastic tank 140 with the left and right surfaces of the outer tank 120, And a damping device 150 that damps the impact transmitted through the elastic plate 140.

즉, 잔잔한 바다를 운항하는 선박의 경우 회동부재(130)만으로도 충분할 수 있으나, 운항환경이 좋지 않은 경우 회동부재(130)에 의해 내부탱크(110)와 외부탱크(120)가 과도하게 상대변위가 생기면 내부탱크(110)가 외부탱크(120)의 좌우면에 충돌하게 된다. 이러한 경우 충돌에 의한 충격을 막기 위해 추가적으로 상술한 탄성플레이트(140)나 감쇠장치(150)를 설치할 수 있다.In other words, in the case of a ship operating a calm sea, the tilting member 130 may be sufficient, but when the operating environment is poor, the inner tank 110 and the outer tank 120 are excessively displaced by the tilting member 130 The inner tank 110 collides with the left and right surfaces of the outer tank 120 when the inner tank 110 is created. In this case, the elastic plate 140 or the damping device 150 described above may be additionally provided to prevent the impact due to the collision.

여기서, 감쇠장치(150)는 탄성플레이트(140)에 일측이 고정된 로드(152)와, 로드(152)의 타측에 일면이 연결된 상태에서 실린더(154) 내측의 하부에 타면이 고정된 스프링(155)과, 실린더(154)와 외부탱크(120)의 내측면을 연결하는 지지바(157)를 포함하고, 충격에 의해 로드(152)는 스프링(155)을 압축시킨 후 스프링(155)의 복원력에 의해 원위치된다.The damping device 150 includes a rod 152 having one side fixed to the elastic plate 140 and a spring 152 fixed to the lower side of the inside of the cylinder 154 in a state where one side is connected to the other side of the rod 152 And a support bar 157 connecting the cylinder 154 and the inner surface of the outer tank 120. The rod 152 compresses the spring 155 by the impact, Restored by restoring force.

이러한 감쇠장치(150)는 상술한 탄성플레이트(140)와 함께 내부탱크(110)에 의한 충격을 현저히 감소시켜, 결과적으로 내부탱크(110) 내의 액체화물의 슬로싱을 효과적으로 감소시킬 수 있다.The damping device 150 can significantly reduce the impact caused by the inner tank 110 together with the elastic plate 140 described above and consequently reduce the sloshing of the liquid cargo in the inner tank 110 effectively.

상술한 실린더 형태의 감쇠장치(150)는 그 형태에 한정되지 않고, 다른 실시 예에서는 스프링만으로 구성되거나, 다양한 댐퍼 등의 형태로 제작될 수도 있다.The above-described cylinder type damping device 150 is not limited to this type. In other embodiments, the damping device 150 may be made of only a spring or various dampers.

이상에서는 특정의 실시 예에 대하여 도시하고 설명하였다. 그러나 상기한 실시 예에만 한정되지 않으며 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 이하의 청구범위에 기재된 발명의 기술적 사상의 요지를 벗어남이 없이 얼마든지 다양하게 변경 실시할 수 있을 것이다.The foregoing has shown and described specific embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims.

100: 액체화물 슬로싱 저감장치 110: 내부탱크
120: 외부탱크 130: 회동부재
140: 탄성플레이트 150: 감쇠장치100: Liquid cargo sloshing reduction device 110: Internal tank
120: outer tank 130: pivot member
140: elastic plate 150: attenuation device

Claims (3)

액체화물을 저장하는 내부탱크;
내측에 격리된 상태의 상기 내부탱크를 포함하는 외부탱크;
상기 외부탱크의 내측 하부 바닥면과 내측 상부 천장면에 배치되어 상기 내부탱크를 하부와 상부에서 지지하며, 상기 내부탱크와 상기 외부탱크 간 이격된 거리가 유지되도록 하는 복수의 회동부재;
상기 내부탱크의 좌우측에 각각 마련되되, 상기 외부탱크의 내측 상부와 하부에 양측이 고정되어, 좌우측으로 흔들리는 상기 내부탱크에 의한 충격을 완화시키는 탄성플레이트; 및
상기 탄성플레이트와 상기 외부탱크의 내측 좌우면 사이에 하나 이상 배치되며, 상기 탄성플레이트를 통해 전달된 충격을 감쇠시키는 감쇠장치;를 포함하며,
상기 회동부재는 구슬 형태로 마련되되, 상기 외부탱크의 내측 하부 바닥면과 내측 상부 천장면에 형성된 복수의 홈에 돌출되게 각각 삽입되며, 상기 내부탱크의 흔들림에 따라 제자리에서 돌게 되어 격리된 상태의 상기 내부탱크의 이동을 최소화시켜 상기 액체화물의 슬로싱을 저감시키는 액체화물 슬로싱 저감장치.An inner tank for storing the liquid cargo;
An outer tank including the inner tank in an insulated state;
A plurality of pivoting members disposed in an inner bottom surface and an inner upper surface of the outer tank for supporting the inner tank at the bottom and top and maintaining a distance between the inner tank and the outer tank;
An elastic plate provided on each of right and left sides of the inner tank and fixed to the upper and lower portions of the inner side of the outer tank to mitigate the impact caused by the inner tank shaking to the left and right; And
And at least one damping device disposed between the elastic plate and the inner side surface of the outer tank for damping the impact transmitted through the elastic plate,
The pivoting member is formed in a bead shape so as to protrude into a plurality of grooves formed in an inner bottom surface of the outer tank and an inner upper surface of the outer tank, Thereby minimizing the movement of the internal tank to reduce sloshing of the liquid cargo. 삭제delete 제1항에 있어서,
상기 감쇠장치는 상기 탄성플레이트에 일측이 고정된 로드와, 상기 로드의 타측에 일면이 연결된 상태에서 실린더 내측의 하부에 타면이 고정된 스프링과, 상기 실린더와 상기 외부탱크의 내측면을 연결하는 지지바를 포함하고, 상기 충격에 의해 상기 로드는 상기 스프링을 압축시킨 후 상기 스프링의 복원력에 의해 원위치되는 액체화물 슬로싱 저감장치.The method according to claim 1,
The damping device includes a rod having one side fixed to the elastic plate, a spring fixed on the other side of the inside of the cylinder in a state where one side is connected to the other side of the rod, Wherein the rod is retracted by the restoring force of the spring after compressing the spring by the impact.
KR1020160174560A 2016-12-20 2016-12-20 Apparatus for reducing sloshing of liquid cargo KR101869446B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102124870B1 (en) * 2019-02-11 2020-06-19 한재용 shock absorbing for hydrogen water production device
CN115892352B (en) * 2022-12-22 2024-04-16 江苏科技大学 Marine fuel storage tank with liquid sloshing inhibiting function

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110039722A (en) * 2009-10-12 2011-04-20 대우조선해양 주식회사 Fixing structure for an independence type storage tank
KR20130118851A (en) * 2013-10-10 2013-10-30 삼성중공업 주식회사 Storage tank structure for transporting liquid cargo
KR101644715B1 (en) 2014-12-30 2016-08-02 한국해양과학기술원 Sloshing Effect Reduction Device

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Publication number Priority date Publication date Assignee Title
KR20110039722A (en) * 2009-10-12 2011-04-20 대우조선해양 주식회사 Fixing structure for an independence type storage tank
KR20130118851A (en) * 2013-10-10 2013-10-30 삼성중공업 주식회사 Storage tank structure for transporting liquid cargo
KR101644715B1 (en) 2014-12-30 2016-08-02 한국해양과학기술원 Sloshing Effect Reduction Device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102124870B1 (en) * 2019-02-11 2020-06-19 한재용 shock absorbing for hydrogen water production device
CN115892352B (en) * 2022-12-22 2024-04-16 江苏科技大学 Marine fuel storage tank with liquid sloshing inhibiting function

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