WO2013122403A1 - Icebreaker with air bubbles - Google Patents

Icebreaker with air bubbles Download PDF

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Publication number
WO2013122403A1
WO2013122403A1 PCT/KR2013/001169 KR2013001169W WO2013122403A1 WO 2013122403 A1 WO2013122403 A1 WO 2013122403A1 KR 2013001169 W KR2013001169 W KR 2013001169W WO 2013122403 A1 WO2013122403 A1 WO 2013122403A1
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WO
WIPO (PCT)
Prior art keywords
nozzle
icebreaker
ice
air bubble
air
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PCT/KR2013/001169
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French (fr)
Korean (ko)
Inventor
이춘주
최걸기
Original Assignee
한국해양과학기술원
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Publication of WO2013122403A1 publication Critical patent/WO2013122403A1/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 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/08—Ice-breakers or other vessels or floating structures for operation in ice-infested waters; Ice-breakers, or other vessels or floating structures having equipment specially adapted therefor
    • B63B35/12—Ice-breakers or other vessels or floating structures for operation in ice-infested waters; Ice-breakers, or other vessels or floating structures having equipment specially adapted therefor having ice-cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/08—Ice-breakers or other vessels or floating structures for operation in ice-infested waters; Ice-breakers, or other vessels or floating structures having equipment specially adapted therefor
    • B63B35/083—Ice-breakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/12—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude for indicating draught or load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J3/02—Driving of auxiliaries from propulsion power plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2211/00—Applications
    • B63B2211/06—Operation in ice-infested waters

Definitions

  • the present invention relates to an icebreaker, and more particularly, to an airbubble icebreaker having an improved icebreaking capacity by an airbubble spray nozzle.
  • the commercial ship applies the bulbous bow (Bulbous Bow, Open Water Bulb) as shown in Fig. 1 for the purpose of improving the performance of the wave resistance in the general sea area, which serves to reduce the wave resistance by canceling the wave generated as the hull moves forward. .
  • Ice Breaking Bow of Figure 2 is characterized by having a gentle slope to allow the athlete to climb on the ice in order to perform the icebreaking function by the weight of the hull.
  • icebreakers are inclined at an angle from the bottom of the waterline to the bottom of the water, and are designed to focus on the icebreaking performance at forward speeds of 3 to 12 knots.
  • icebreakers have a heavier slope bow structure that is much heavier than the regular ships, has higher engine power, and is easier to break the ice.
  • the newly developed icebreaker has a wider bow than the average line width, a narrower tail, and a gentle bow that forms a 'spoon' shape. Doing This shape allows the bow of the icebreaker to easily climb on the ice and breaks the ice with the big bow so that the back (stern) is easily pulled out.
  • the way to break the ice using the great propulsion of the icebreaker is to break the ice with the weight of the boat by the bow of the bow. At this time, the ship breaks the ice faster by shaking the ship from side to side.
  • the present invention to solve the above problems, by reducing the energy consumption of the engine to form an air layer under the ice layer so that cracks easily occur in the ice during the weight of the icebreaker to efficiently perform the icebreaking operation in the sea area with a small propulsion force
  • the purpose is to reduce the effects of buoyancy.
  • a nozzle in which a plurality of fine holes are formed in the bow portion of the bow portion of the icebreaker is easily formed in the bow portion, and the purpose thereof is to facilitate icebreaking using the bow.
  • Air bubble icebreaker to break the ice in the ice-covered sea ice comprises a plurality of holes formed on both sides of the bow portion; A plurality of first nozzles connected to a plurality of the holes; A second nozzle connectable to the first nozzle; A guide member which moves the second nozzle up and down; And a compressor for injecting high pressure air into the second nozzle.
  • a plurality of the holes are arranged spaced apart at regular intervals in the vertical direction in the bow portion, characterized in that formed adjacent to the draft line.
  • the first nozzle is characterized in that a plurality of corresponding to the plurality of holes is embedded in the bow portion is fixed.
  • one end of the first nozzle extends to the hole, and the other end of the first nozzle is connectable with the second nozzle.
  • the first nozzle has a diameter smaller than that of the hole, and a plurality of micro holes are formed on the outer circumferential surface of the first nozzle so that air is formed while bubbles pass through the micro holes of the first nozzle. It features.
  • the second nozzle is characterized in that it is movable in the bow portion along the guide member.
  • the invention characterized in that it comprises a sensor for measuring the water line.
  • the second nozzle at the other end of the first nozzle connected to the hole located below the position of the draft line of the plurality of holes the guide member It is characterized by moving along the connection.
  • the high pressure air is supplied to the second nozzle in the compressor to form an air layer on the lower end of the ice located in the draft line.
  • the compressor is characterized in that for supplying the exhaust gas to the second nozzle by compressing.
  • Ice-breaking method by the air bubble icebreaker to break the ice in the ice-covered sea ice comprises a plurality of holes formed on both sides of the bow portion; A plurality of first nozzles connected to a plurality of the holes; A second nozzle connectable to the first nozzle; A guide member which moves the second nozzle up and down; And a compressor providing high pressure air to the second nozzle. And a draft line sensing step of sensing, by the sensing sensor, the draft line when the air bubble icebreaker sails the freezing sea area, the sensor comprising a sensing sensor sensing a draft line.
  • the air used in the air bubble injection step is characterized in that the exhaust gas.
  • the air bubble icebreaker according to the present invention forms an air layer under the ice layer in the advancing direction of the icebreaker by the air bubble sprayed by the air bubble injection nozzle provided in the bow portion to support the ice layer upwards, and the bow portion rises on the supported ice layer.
  • the ice can be easily broken by the reduction of the effect of buoyancy.
  • the buoyant ice has an effect of enabling an efficient icebreaking operation even with a low propulsion force when the ice strength is low or a crack is generated in advance due to the buoyancy difference so that the bow of the icebreaker can actually ice the ice.
  • Figure 1 shows a conventional bower (Bulbous Bow, Open Water Bulb).
  • FIG. 2 shows an icebreaking bow of a conventional icebreaker.
  • FIG. 3 is a schematic view of an air bubble icebreaker according to the present invention.
  • FIG. 4 is an enlarged view of an air bubble icebreaker according to the present invention.
  • FIG. 5 is a flow chart of the ice-breaking method by the air bubble icebreaker according to the present invention.
  • FIG 3 is a schematic view of an air bubble icebreaker according to the present invention
  • Figure 4 is an enlarged view.
  • the air bubble icebreaker 1 according to the present invention is a plurality of holes 100 formed in the bow portion, the first nozzle 200, the second nozzle 300, the guide member 400 And a compressor 500.
  • the plurality of holes 100 are formed on both sides of the bow portion, and are formed near the draft line.
  • the plurality of holes 100 are arranged side by side at a predetermined interval on the vertical line with respect to the draft line. This is because the air bubble icebreaker (1) changes the draft line according to the operation, and the position of the bow portion in contact with the ice also changes, so that the high-pressure air injection position to be described later to be made just below the ice air layer at the bottom of the ice
  • the holes 100 to which high pressure air is to be injected are vertically arranged to adjust the height of high pressure air injection.
  • the first nozzle 200 is coupled to the inside of the plurality of holes 100 in a number corresponding to the number of the plurality of holes 100.
  • the plurality of first nozzles 200 and the plurality of holes 100 are formed in the bow portion so that the ice collides with the bow portion, so that the protruding shape may cause damage.
  • One end of the first nozzle 200 extends to the end of the hole 100, and the other end of the first nozzle 200 is connectable to the second nozzle 300.
  • the first nozzle 200 may be formed to have the same diameter as the hole 100 to inject a high pressure air directly below the ice so that the air layer is formed long along the advancing direction of the icebreaker, the diameter of the first nozzle 200
  • the diameter of the hole 100 is smaller than the diameter of the hole 100, and a plurality of micro holes 210 are formed on the outer circumferential surface of the first nozzle 200 so that high-pressure air contacts the water while penetrating the micro holes 210.
  • Bubbles may be formed to form a thick air layer at the bottom of the ice adjacent to the icebreaker direction, thereby reducing buoyancy acting on the ice.
  • the second nozzle 300 is connected to the guide member 400 which is built in the bow portion and makes the second nozzle 300 moveable.
  • a detection sensor 600 that can detect the waterline.
  • the water line is detected to have ice formed horizontally with the water line, and to inject high pressure air directly below the ice to easily form the air layer under the ice.
  • the air layer is formed, the ice floats by the air layer. It is in the form, and the ice lifted in the air layer is lifted by the gravity of the bow portion of the icebreaker has an effect that the ice is easily icebreaking.
  • the second nozzle 300 is moved along the guide member 400 to a lower portion adjacent to the waterline position detected by the sensing sensor 600, and connects the first nozzle 200 and the second nozzle 300.
  • the high pressure air is compressed to the second nozzle 300 using the compressor 500 and supplied to the second nozzle 300, which is supplied to the first nozzle. It is injected into the hole 100 through the 200.
  • the position of the air bubble sprayed corresponds to the lower end of the ice.
  • connection member 700 may be coupled.
  • the air compressed by the compressor 500 may be compressed by using ambient air or by compressing the exhaust gas.
  • the strength of the ice melts using the residual heat remaining in the exhaust gas.
  • the weakening effect can also be expected.
  • the surrounding air can be heated and then compressed and sprayed to achieve the effect of using the exhaust gas.
  • FIG 3 is a schematic view of an air bubble icebreaker according to the present invention
  • Figure 4 is an enlarged view.
  • the air bubble icebreaker 1 according to the present invention is a plurality of holes 100 formed in the bow portion, the first nozzle 200, the second nozzle 300, the guide member 400 And a compressor 500.
  • the plurality of holes 100 are formed on both sides of the bow portion, and are formed near the draft line.
  • the plurality of holes 100 are arranged side by side at a predetermined interval on the vertical line with respect to the draft line. This is because the air bubble icebreaker (1) changes the draft line according to the operation, and the position of the bow portion in contact with the ice also changes, so that the high-pressure air injection position to be described later to be made just below the ice air layer at the bottom of the ice
  • the holes 100 to which high pressure air is to be injected are vertically arranged to adjust the height of high pressure air injection.
  • the first nozzle 200 is coupled to the inside of the plurality of holes 100 in a number corresponding to the number of the plurality of holes 100.
  • the plurality of first nozzles 200 and the plurality of holes 100 are formed in the bow portion so that the ice collides with the bow portion, so that the protruding shape may cause damage.
  • One end of the first nozzle 200 extends to the end of the hole 100, and the other end of the first nozzle 200 is connectable to the second nozzle 300.
  • the first nozzle 200 may be formed to have the same diameter as the hole 100 to inject a high pressure air directly below the ice so that the air layer is formed long along the advancing direction of the icebreaker, the diameter of the first nozzle 200
  • the diameter of the hole 100 is smaller than the diameter of the hole 100, and a plurality of micro holes 210 are formed on the outer circumferential surface of the first nozzle 200 so that high-pressure air contacts the water while penetrating the micro holes 210.
  • Bubbles may be formed to form a thick air layer at the bottom of the ice adjacent to the icebreaker direction, thereby reducing buoyancy acting on the ice.
  • the second nozzle 300 is connected to the guide member 400 which is built in the bow portion and makes the second nozzle 300 moveable.
  • a detection sensor 600 that can detect the waterline.
  • the water line is detected to have ice formed horizontally with the water line, and to inject high pressure air directly below the ice to easily form the air layer under the ice.
  • the air layer is formed, the ice floats by the air layer. It is in the form, and the ice lifted in the air layer is lifted by the gravity of the bow portion of the icebreaker has an effect that the ice is easily icebreaking.
  • the second nozzle 300 is moved along the guide member 400 to a lower portion adjacent to the waterline position detected by the sensing sensor 600, and connects the first nozzle 200 and the second nozzle 300.
  • the high pressure air is compressed to the second nozzle 300 using the compressor 500 and supplied to the second nozzle 300, which is supplied to the first nozzle. It is injected into the hole 100 through the 200.
  • the position of the air bubble sprayed corresponds to the lower end of the ice.
  • connection member 700 may be coupled.
  • the air compressed by the compressor 500 may be compressed by using ambient air or by compressing the exhaust gas.
  • the strength of the ice melts using the residual heat remaining in the exhaust gas.
  • the weakening effect can also be expected.
  • the surrounding air can be heated and then compressed and sprayed to achieve the effect of using the exhaust gas.
  • FIG. 5 is a flow chart of the ice-breaking method by the air bubble icebreaker according to the present invention.
  • the ice-breaking method by the air bubble icebreaker comprises a plurality of holes (100) formed on both sides of the bow portion; A plurality of first nozzles 200 connected to a plurality of holes 100; A second nozzle 300 connectable to the first nozzle 200; A guide member 400 which moves the second nozzle 300 to move; And a compressor (500) for providing high pressure air to the second nozzle (300). And a water line detection step (S100), wherein the water line detection step detects the water line when the air bubble icebreaker 1 sails a freezing area including a detection sensor 600 for detecting a water line.
  • the air to inject a high-pressure air through the compressor 500 to the lower portion of the ice to form an air layer It characterized in that it comprises a bubble spray step (S300).
  • the air used in the air bubble injection step (S300) may be exhaust gas.
  • the ice by forming an air layer under the ice layer in the advancing direction of the icebreaker by the air bubble sprayed by the air bubble injection nozzle provided in the bow portion to support the ice layer to the top, and the bow portion rises on the supported ice layer
  • the ice can be easily broken with reduced buoyancy and thus can be used more effectively in the field of icebreaking.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Production, Working, Storing, Or Distribution Of Ice (AREA)

Abstract

An icebreaker, with air bubbles, which breaks ice in ice-covered waters according to the present invention comprises: a plurality of holes formed on either side of the bow; a plurality of first nozzles connected to the plurality of holes; a second nozzle connectable to the first nozzles; a guide element for moving the second nozzle upwards and downwards; and a compressor for spraying high-pressure air into the second nozzle.

Description

에어버블 쇄빙선Air Bubble Icebreaker
본 발명은 쇄빙선에 관한 것으로서, 특히 에어버블 분사 노즐에 의해 쇄빙능력을 향상시킨 에어버블 쇄빙선에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an icebreaker, and more particularly, to an airbubble icebreaker having an improved icebreaking capacity by an airbubble spray nozzle.
일반적으로, 선박이 얼음이 있는 해역을 지나갈 때는 선박과 얼음의 충돌 또는 마찰에 의한 저항이 증가하기 때문에 이를 최소화하기 위해서 저속으로 운행한다. 하지만 이렇게 운행하는 가운데서도 얼음에 의한 마찰저항이나 직접 부딪히는 충격하중은 매우 크기 때문에 통상적으로 쇄빙선의 선수부 형상은 측면에서 볼 때 많이 기울어져 있는 형상이다.In general, when a ship crosses an iced area, the ship travels at a low speed to minimize the resistance due to collision or friction between the ship and the ice. However, even during this operation, the frictional resistance of ice or direct impact load is very large, so the bow shape of the icebreaker is generally inclined from the side.
이것은 일정한 두께의 얼음이 존재하는 구간을 지나갈 때 빙판을 선박의 수직 전단력에 의해 쇄빙하도록 하는 선수부가 가장 효과적인 형상인 것이다. 따라서 대부분의 선박은 그 기울기가 일정하게 정해져 있으며 통상적으로 기울기가 작을수록 즉, 다시 말해서 기울기가 수평에 가까울수록 쇄빙능력은 커지게 된다. 그렇지만 선수부기울기 역시 너무 작으면 선박의 쇄빙능력보다는 일반 대양 항해시 내파성능이 급격히 나빠지기 때문에 적절한 기울기를 가지도록 선급에서 요구하고 있다.This is the most effective shape for the bow to allow ice to break by the vertical shear force of the ship as it passes over a section of ice of constant thickness. Therefore, most ships have a fixed inclination, and typically, the smaller the inclination, that is, the closer the inclination is to the horizontal, the greater the icebreaking capacity. However, if the bow sloping is too small, the ship demands that the ship be properly inclined, since its implosion performance is significantly worsened when sailing the general ocean than the icebreaking capacity of the ship.
일반상선은 일반해역에서 조파저항 성능 개선 목적으로 도 1과 같은 구상선수(Bulbous Bow, Open Water Bulb)를 적용하며, 이는 선체가 전진하면서 발생하는 파를 상쇄시킴으로써 조파저항을 감소시키는 역할을 하게 된다.The commercial ship applies the bulbous bow (Bulbous Bow, Open Water Bulb) as shown in Fig. 1 for the purpose of improving the performance of the wave resistance in the general sea area, which serves to reduce the wave resistance by canceling the wave generated as the hull moves forward. .
도 2의 쇄빙선수(Ice Breaking Bow)는 선체의 자중으로 쇄빙 기능을 수행하기 위해 선수가 얼음 위로 올라갈 수 있도록 완만한 경사를 갖는 특징이 있다. 일반적으로 쇄빙선수는 수선면 아래에서부터 선수바닥까지 일정한 각도로 경사져 있으며, 빙해 지역에서 전진속도 3 ~ 12 노트시의 쇄빙 성능에 초점을 맞춰 설계된다.Ice Breaking Bow of Figure 2 is characterized by having a gentle slope to allow the athlete to climb on the ice in order to perform the icebreaking function by the weight of the hull. In general, icebreakers are inclined at an angle from the bottom of the waterline to the bottom of the water, and are designed to focus on the icebreaking performance at forward speeds of 3 to 12 knots.
이러한 쇄빙선은 바다 얼음을 깨며 나아가기 위해 일반선박에 비해 매우 무겁고 엔진출력이 크며 얼음을 깨기 쉬운 완만한 경사의 뱃머리 구조를 갖추고 있다.These icebreakers have a heavier slope bow structure that is much heavier than the regular ships, has higher engine power, and is easier to break the ice.
얼음을 깰 때엔 배와 얼음 사이의 마찰 저항을 최소화해야 하는데, 최근 개발된 쇄빙선은 뱃머리의 폭이 평균선폭보다 더 넓고 배꼬리의 폭은 더 좁으며 뱃머리가 완만한 곡선을 이뤄‘수저’모양을 하고 있다. 이러한 모양은 쇄빙선의 뱃머리가 얼음 위로 쉽게 올라타도록 하고, 큰 뱃머리로 얼음을 깨며 나아가면 뒷부분(선미)은 쉽게 빠져나오게 한 설계이다.When breaking the ice, it is necessary to minimize the frictional resistance between the ship and the ice.The newly developed icebreaker has a wider bow than the average line width, a narrower tail, and a gentle bow that forms a 'spoon' shape. Doing This shape allows the bow of the icebreaker to easily climb on the ice and breaks the ice with the big bow so that the back (stern) is easily pulled out.
쇄빙선은 두께 1m 가량의 얼음을 잇따라 깨야 하기 때문에 저속에서도 매우 큰 추진력이 필요하며, 배가 얼음에 갇혔을 때 스스로 빠져나오는 추진력은 쇄빙선의 필수 요소라 할 수 있다. 최근에 건조된 핀란드의 쇄빙선은 제자리에서 맴도는 프로펠러를 갖춰 전방위 쇄빙을 하는 기술을 갖추기도 했다.Since icebreakers must break ice of about 1m in thickness, very large propulsion is required at low speeds, and the propulsion that comes out when the ship is stuck in ice is an essential element of icebreakers. The recently built Finnish icebreaker also has a technology to do all-round icebreaking with propellers hovering in place.
이와 같이 쇄빙선의 큰 추진력을 이용하여 얼음을 깨는 방식은 뱃머리가 얼음 위를 올라타 배의 무게로 얼음을 깨부수는 방식인데, 이 때 배를 일부러 좌우로 흔들어 더 빨리 얼음을 깨기도 한다.The way to break the ice using the great propulsion of the icebreaker is to break the ice with the weight of the boat by the bow of the bow. At this time, the ship breaks the ice faster by shaking the ship from side to side.
그러나 이와 같이 단순히 쇄빙선의 자중을 이용하는 방식은 쇄빙선의 큰 추진력을 위한 엔진의 에너지 소모량이 크기 때문에 쇄빙을 위한 연료비가 상당히 많이 드는 문제점이 있었으며, 단순히 중력과 같은 물리적인 방법에만 의존하기 때문에 그 효율성이 저하되는 문제점이 있었다.However, this method of simply using the icebreaker's own weight has a problem that the fuel cost for the icebreaker is very high due to the large amount of energy consumed by the engine for the large propulsion of the icebreaker. There was a problem of deterioration.
본 발명은 상기와 같은 문제점을 해결하기 위해, 엔진의 에너지 소모량을 줄여 작은 추진력으로 결빙해역의 쇄빙작업을 효율적으로 할 수 있도록 쇄빙선의 자중시 얼음에 쉽게 크랙이 발생되도록 공기층을 얼음층 하부에 형성시켜 부력에 의한 영향을 감소시키는데 그 목적이 있다.The present invention to solve the above problems, by reducing the energy consumption of the engine to form an air layer under the ice layer so that cracks easily occur in the ice during the weight of the icebreaker to efficiently perform the icebreaking operation in the sea area with a small propulsion force The purpose is to reduce the effects of buoyancy.
이를 위해 쇄빙선의 선수부에 에어버블이 용이하게 형성되도록 복수개의 미세홀이 형성된 노즐이 선수부 내부에 내장되고, 이를 이용하여 쇄빙이 용이하도록 하는데 그 목적이 있다.To this end, a nozzle in which a plurality of fine holes are formed in the bow portion of the bow portion of the icebreaker is easily formed in the bow portion, and the purpose thereof is to facilitate icebreaking using the bow.
본 발명에 따른 얼음이 덮여 있는 결빙해역에서 얼음을 부수는 에어버블 쇄빙선은 선수부의 양측면에 형성된 복수개의 홀; 복수개의 상기 홀에 연결된 복수개의 제1노즐; 상기 제1노즐과 연결가능한 제2노즐; 상기 제2노즐을 상하이동시키는 가이드부재; 및 상기 제2노즐에 고압의 에어를 분사하는 압축기를 포함하는 것을 특징으로 한다.Air bubble icebreaker to break the ice in the ice-covered sea ice according to the present invention comprises a plurality of holes formed on both sides of the bow portion; A plurality of first nozzles connected to a plurality of the holes; A second nozzle connectable to the first nozzle; A guide member which moves the second nozzle up and down; And a compressor for injecting high pressure air into the second nozzle.
또한 본 발명에 따르면, 복수개의 상기 홀은 상기 선수부에 수직방향으로 일정간격 이격되어 배열되고, 흘수선에 인접하여 형성된 것을 특징으로 한다.Further, according to the present invention, a plurality of the holes are arranged spaced apart at regular intervals in the vertical direction in the bow portion, characterized in that formed adjacent to the draft line.
또한 본 발명에 따르면, 상기 제1노즐은 복수개의 상기 홀에 대응되는 복수개가 상기 선수부에 내장되어 고정된 것을 특징으로 한다.In addition, according to the present invention, the first nozzle is characterized in that a plurality of corresponding to the plurality of holes is embedded in the bow portion is fixed.
또한 본 발명에 따르면, 상기 제1노즐의 일단은 상기 홀까지 연장되고, 상기 제1노즐의 타단은 상기 제2노즐과 연결가능한 것을 특징으로 한다.According to the present invention, one end of the first nozzle extends to the hole, and the other end of the first nozzle is connectable with the second nozzle.
또한 본 발명에 따르면, 상기 제1노즐은 상기 홀보다 직경이 작고, 상기 제1노즐의 외주면에는 복수개의 미세홀이 형성되어 에어가 상기 제1노즐의 상기 미세홀을 통과하면서 버블이 형성되는 것을 특징으로 한다.According to the present invention, the first nozzle has a diameter smaller than that of the hole, and a plurality of micro holes are formed on the outer circumferential surface of the first nozzle so that air is formed while bubbles pass through the micro holes of the first nozzle. It features.
또한 본 발명에 따르면, 상기 제2노즐은 상기 가이드 부재를 따라 상기 선수부의 내부에서 상하이동가능한 것을 특징으로 한다.In addition, according to the present invention, the second nozzle is characterized in that it is movable in the bow portion along the guide member.
또한 본 발명에 따르면, 상기 흘수선을 측정가능한 감지센서를 포함하는 것을 특징으로 한다.In addition, according to the invention, it characterized in that it comprises a sensor for measuring the water line.
또한 본 발명에 따르면, 상기 감지센서에서 측정된 흘수선의 위치에 따라, 복수개의 상기 홀중에서 상기 흘수선의 위치보다 하부에 위치한 홀과 연결된 상기 제1노즐의 타단에 상기 제2노즐을 상기 가이드 부재를 따라 이동시켜 연결하는 것을 특징으로 한다.In addition, according to the present invention, according to the position of the draft line measured by the detection sensor, the second nozzle at the other end of the first nozzle connected to the hole located below the position of the draft line of the plurality of holes the guide member It is characterized by moving along the connection.
또한 본 발명에 따르면, 상기 압축기에서 고압의 에어를 상기 제2노즐에 공급하여 상기 흘수선에 위치한 상기 얼음의 하단부에 공기층을 형성시키는 것을 특징으로 한다.In addition, according to the present invention, the high pressure air is supplied to the second nozzle in the compressor to form an air layer on the lower end of the ice located in the draft line.
또한 본 발명에 따르면, 상기 제1노즐과 상기 제2노즐의 연결시 고압의 에어가 누출되는 것을 방지하기 위해, 상기 제1노즐과 상기 제2노즐의 외주면에 탈착가능한 밀폐연결부재를 포함하는 것을 특징으로 한다.In addition, according to the present invention, in order to prevent the leakage of high-pressure air when connecting the first nozzle and the second nozzle, to include a removable connection member detachable to the outer peripheral surface of the first nozzle and the second nozzle It features.
또한 본 발명에 따르면, 상기 압축기는 배기가스를 압축하여 상기 제2노즐에 공급하는 것을 특징으로 한다.According to the present invention, the compressor is characterized in that for supplying the exhaust gas to the second nozzle by compressing.
본 발명에 따른 얼음이 덮여 있는 결빙해역에서 얼음을 부수는 에어버블 쇄빙선에 의한 쇄빙방법은 선수부의 양측면에 형성된 복수개의 홀; 복수개의 상기 홀에 연결된 복수개의 제1노즐; 상기 제1노즐과 연결가능한 제2노즐; 상기 제2노즐을 상하이동시키는 가이드부재; 및 상기 제2노즐에 고압의 에어를 제공하는 압축기; 및 흘수선을 감지하는 감지센서를 포함하는 에어버블 쇄빙선이 상기 결빙해역을 항해할 때, 상기 감지센서가 상기 흘수선을 감지하는 흘수선 감지단계; 상기 흘수선 감지단계에서 흘수선을 감지하고, 상기 흘수선에 위치한 얼음의 하부에 공기층을 형성시키기 위해, 상기 제2노즐을 상기 가이드부재를 따라 이동시키는 노즐이동단계;Ice-breaking method by the air bubble icebreaker to break the ice in the ice-covered sea ice according to the present invention comprises a plurality of holes formed on both sides of the bow portion; A plurality of first nozzles connected to a plurality of the holes; A second nozzle connectable to the first nozzle; A guide member which moves the second nozzle up and down; And a compressor providing high pressure air to the second nozzle. And a draft line sensing step of sensing, by the sensing sensor, the draft line when the air bubble icebreaker sails the freezing sea area, the sensor comprising a sensing sensor sensing a draft line. A nozzle movement step of sensing the water line in the water line detection step and moving the second nozzle along the guide member to form an air layer under the ice located in the water line;
상기 노즐이동단계에서 상기 제2노즐이 상기 흘수선과 인접한 하부에 위치할 때, 상기 제1노즐과 상기 제2노즐을 연결하는 노즐연결단계; 및 상기 노즐연결단계에서 상기 제1노즐과 상기 제2노즐이 연결되면, 상기 압축기를 통해 고압의 에어를 상기 얼음의 하부에 분사하여 공기층을 형성하는 에어버블 분사단계를 포함하는 것을 특징으로 한다.A nozzle connecting step of connecting the first nozzle and the second nozzle when the second nozzle is located below the water line in the nozzle moving step; And an air bubble injection step of forming an air layer by injecting high-pressure air into the lower portion of the ice through the compressor when the first nozzle and the second nozzle are connected in the nozzle connection step.
또한 본 발명에 따르면, 상기 에어버블 분사단계에 사용되는 에어는 배기가스인 것을 특징으로 한다.In addition, according to the present invention, the air used in the air bubble injection step is characterized in that the exhaust gas.
본 발명에 따른 에어버블 쇄빙선은 선수부에 구비된 에어버블 분사 노즐에 의해 분사된 에어버블에 의해 쇄빙선의 진행방향의 얼음층 하부에 공기층을 형성시켜 얼음층을 상부로 부양시키고, 부양된 얼음층에 선수부가 올라타면서 자중을 가하게 되면, 얼음이 부력에 의한 영향 감소로 용이하게 쇄빙가능하도록 하는 효과가 있다.The air bubble icebreaker according to the present invention forms an air layer under the ice layer in the advancing direction of the icebreaker by the air bubble sprayed by the air bubble injection nozzle provided in the bow portion to support the ice layer upwards, and the bow portion rises on the supported ice layer. When the weight is applied while burning, the ice can be easily broken by the reduction of the effect of buoyancy.
이와 같이, 부양된 얼음은 얼음 강도가 낮아지거나, 부력차로 인해 얼음에 미리 균열이 발생되어 쇄빙선의 선수부가 실질적으로 얼음을 쇄빙할 때, 낮은 추진력으로도 효율적인 쇄빙작업이 가능하도록 하는 효과가 있다.As such, the buoyant ice has an effect of enabling an efficient icebreaking operation even with a low propulsion force when the ice strength is low or a crack is generated in advance due to the buoyancy difference so that the bow of the icebreaker can actually ice the ice.
또한, 이를 통해, 엔진의 에너지 소모량을 크게 줄여 엔진에 사용되는 연료비를 대폭 절감할 수 있는 효과가 있다.In addition, through this, it is possible to significantly reduce the energy consumption of the engine to significantly reduce the fuel cost used in the engine.
도 1은 종래의 일반선의 구상선수(Bulbous Bow, Open Water Bulb)를 나타낸다.Figure 1 shows a conventional bower (Bulbous Bow, Open Water Bulb).
도 2는 종래의 쇄빙선의 쇄빙선수부를 나타낸다.2 shows an icebreaking bow of a conventional icebreaker.
도 3은 본 발명에 따른 에어버블 쇄빙선의 개략도이다.3 is a schematic view of an air bubble icebreaker according to the present invention.
도 4는 본 발명에 따른 에어버블 쇄빙선의 확대도이다.4 is an enlarged view of an air bubble icebreaker according to the present invention.
도 5는 본 발명에 따른 에어버블 쇄빙선에 의한 쇄빙방법의 순서도이다.5 is a flow chart of the ice-breaking method by the air bubble icebreaker according to the present invention.
< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>
1: 워터젯 쇄빙선 100: 홀1: waterjet icebreaker 100: hole
200: 제1노즐 210: 미세홀200: first nozzle 210: fine holes
300: 제2노즐 400: 가이드부재300: second nozzle 400: guide member
500: 압축기 600: 감지센서500: compressor 600: sensor
700: 밀폐연결부재700: sealed connection member
S100: 흘수선 감지단계 S200: 노즐연결단계S100: waterline detection step S200: nozzle connection step
S300: 에어버블 분사단계S300: air bubble injection step
이하, 첨부된 도면을 참조하여 본 발명의 실시예를 상세히 설명한다. 우선, 도면들 중 동일한 구성요소 또는 부품들은 가능한 한 동일한 참조부호를 나타내고 있음에 유의해야 한다. 본 발명을 설명함에 있어서 관련된 공지기능 혹은 구성에 대한 구체적인 설명은 본 발명의 요지를 모호하게 하지 않기 위해 생략한다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention; First, it should be noted that the same components or parts in the drawings represent the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the gist of the present invention.
도 3은 본 발명에 따른 에어버블 쇄빙선의 개략도이고, 도 4는 확대도다.3 is a schematic view of an air bubble icebreaker according to the present invention, Figure 4 is an enlarged view.
도 3 및 4에 도시된 바와 같이, 본 발명에 따른 에어버블 쇄빙선(1)은 선수부에 형성된 복수개의 홀(100), 제1노즐(200), 제2노즐(300), 가이드부재(400), 압축기(500)를 포함한다.3 and 4, the air bubble icebreaker 1 according to the present invention is a plurality of holes 100 formed in the bow portion, the first nozzle 200, the second nozzle 300, the guide member 400 And a compressor 500.
복수개의 홀(100)은 선수부의 양측면에 형성되고, 흘수선 부근에 형성된다.The plurality of holes 100 are formed on both sides of the bow portion, and are formed near the draft line.
즉, 흘수선에 대해 수직선상에 복수개의 홀(100)이 나란히 일정간격 이격되어 배열된다. 이는 에어버블 쇄빙선(1)이 운항에 따라 흘수선이 변동하게 되고, 이에 따라 얼음과 접촉하는 선수부의 위치도 변화하게 되므로 이후 설명될 고압의 에어 분사 위치가 얼음 바로 아래에서 이루어지도록 하여 얼음 하단부에 공기층이 용이하게 형성되도록 하기 위한 것으로서, 고압의 에어가 분사될 홀(100)이 수직으로 배열되어 고압의 에어 분사 높이를 조절가능하도록 한 것이다.That is, the plurality of holes 100 are arranged side by side at a predetermined interval on the vertical line with respect to the draft line. This is because the air bubble icebreaker (1) changes the draft line according to the operation, and the position of the bow portion in contact with the ice also changes, so that the high-pressure air injection position to be described later to be made just below the ice air layer at the bottom of the ice In order to facilitate the formation, the holes 100 to which high pressure air is to be injected are vertically arranged to adjust the height of high pressure air injection.
제1노즐(200)은 복수개의 홀(100)의 개수와 대응되는 개수로 복수개의 홀(100)의 내부에 결합되어 연결된다. The first nozzle 200 is coupled to the inside of the plurality of holes 100 in a number corresponding to the number of the plurality of holes 100.
복수개의 제1노즐(200) 및 복수개의 홀(100)이 선수부에 내장된 형태로 형성된 것은 얼음이 선수부에 충돌하므로 돌출된 형상이라면 파손의 우려가 있기 때문에 선수부 내부에 내장형으로 형성시킨 것이다.The plurality of first nozzles 200 and the plurality of holes 100 are formed in the bow portion so that the ice collides with the bow portion, so that the protruding shape may cause damage.
제1노즐(200)의 일단은 홀(100)의 말단까지 연장되어 연결되고, 제1노즐(200)의 타단은 제2노즐(300)과 연결가능하다.One end of the first nozzle 200 extends to the end of the hole 100, and the other end of the first nozzle 200 is connectable to the second nozzle 300.
제1노즐(200)은 홀(100)과 동일한 직경으로 형성되어 얼음 바로 아래에서 고압의 에어를 분사하여 공기층이 쇄빙선의 진행방향을 따라 길게 형성되도록 할 수도 있고, 제1노즐(200)의 직경을 홀(100)의 직경보다 직경이 작게 하고, 제1노즐(200)의 외주면에 복수개의 미세홀(210)을 형성시켜 고압의 에어가 미세홀(210)을 관통하면서 물과 접촉하여 다량의 버블이 형성되어 쇄빙선 진행방향에 인접한 얼음 하단부에 공기층을 두껍게 형성하여 얼음에 작용하는 부력을 감소시킬 수도 있다.The first nozzle 200 may be formed to have the same diameter as the hole 100 to inject a high pressure air directly below the ice so that the air layer is formed long along the advancing direction of the icebreaker, the diameter of the first nozzle 200 The diameter of the hole 100 is smaller than the diameter of the hole 100, and a plurality of micro holes 210 are formed on the outer circumferential surface of the first nozzle 200 so that high-pressure air contacts the water while penetrating the micro holes 210. Bubbles may be formed to form a thick air layer at the bottom of the ice adjacent to the icebreaker direction, thereby reducing buoyancy acting on the ice.
제2노즐(300)은 선수부의 내부에 내장되고 제2노즐(300)을 상하이동가능하게 하는 가이드 부재(400)와 연결된다.The second nozzle 300 is connected to the guide member 400 which is built in the bow portion and makes the second nozzle 300 moveable.
본 발명에 따른 에어버블 쇄빙선(1)의 일측에는 흘수선을 감지할 수 있는 감지센서(600)가 부착되어 있다.On one side of the air bubble icebreaker 1 according to the present invention is attached a detection sensor 600 that can detect the waterline.
흘수선을 감지하는 것은 흘수선과 수평하게 얼음도 형성되어 있고, 얼음 바로 아래층에 고압의 공기를 분사하여 공기층을 용이하게 얼음 바로 아래에 형성시키기 위한 것으로서, 공기층이 형성되면, 공기층에 의해 얼음이 떠 있는 형태이고, 공기층에 부양된 얼음을 쇄빙선의 선수부가 타고올라 중력에 의해 가압하게 되면 얼음이 용이하게 쇄빙되는 효과가 있다.The water line is detected to have ice formed horizontally with the water line, and to inject high pressure air directly below the ice to easily form the air layer under the ice. When the air layer is formed, the ice floats by the air layer. It is in the form, and the ice lifted in the air layer is lifted by the gravity of the bow portion of the icebreaker has an effect that the ice is easily icebreaking.
따라서, 감지센서(600)에서 감지한 흘수선 위치에 인접한 하부로 제2노즐(300)을 가이드부재(400)를 따라 이동시키고, 제1노즐(200)과 제2노즐(300)을 연결한다.Therefore, the second nozzle 300 is moved along the guide member 400 to a lower portion adjacent to the waterline position detected by the sensing sensor 600, and connects the first nozzle 200 and the second nozzle 300.
제2노즐(300)과 제1노즐(200)이 연결되면, 제2노즐(300)에 고압의 에어를 압축기(500)를 이용하여 압축하여 제2노즐(300)에 공급하고 이는 제1노즐(200)을 통해 홀(100)로 분사된다. When the second nozzle 300 and the first nozzle 200 are connected, the high pressure air is compressed to the second nozzle 300 using the compressor 500 and supplied to the second nozzle 300, which is supplied to the first nozzle. It is injected into the hole 100 through the 200.
이 때 분사되는 에어버블의 위치는 얼음의 하단부에 해당된다.At this time, the position of the air bubble sprayed corresponds to the lower end of the ice.
제1노즐(200)과 제2노즐(300)의 연결시 고압의 에어가 누출되는 것을 방지하기 위해 제1노즐(200)과 제2노즐(300) 외주면은 이들을 감싸 밀폐 및 연결시키는 탈착가능한 밀폐연결부재(700)가 결합될 수 있다.In order to prevent leakage of high pressure air when the first nozzle 200 and the second nozzle 300 are connected, the outer circumferential surfaces of the first nozzle 200 and the second nozzle 300 are removable to seal and connect them. The connection member 700 may be coupled.
압축기(500)에서 압축되는 공기는 주위의 공기를 이용하여 압축시킬 수도 있고배기가스를 압축할 수도 있으며, 배기가스를 압축하여 공급하게 되면, 배기가스에 남아 있는 잔열을 이용하여 얼음이 녹으면서 강도가 약해지는 효과도 기대할 수 있다.The air compressed by the compressor 500 may be compressed by using ambient air or by compressing the exhaust gas. When the exhaust gas is compressed and supplied, the strength of the ice melts using the residual heat remaining in the exhaust gas. The weakening effect can also be expected.
배기가스를 이용하지 않더라도 주위의 에어를 가열시킨 후 압축시켜 분사함으로써, 배기가스를 이용한 효과를 거둘 수도 있다.Even if the exhaust gas is not used, the surrounding air can be heated and then compressed and sprayed to achieve the effect of using the exhaust gas.
이하, 첨부된 도면을 참조하여 본 발명의 실시예를 상세히 설명한다. 우선, 도면들 중 동일한 구성요소 또는 부품들은 가능한 한 동일한 참조부호를 나타내고 있음에 유의해야 한다. 본 발명을 설명함에 있어서 관련된 공지기능 혹은 구성에 대한 구체적인 설명은 본 발명의 요지를 모호하게 하지 않기 위해 생략한다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention; First, it should be noted that the same components or parts in the drawings represent the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the gist of the present invention.
도 3은 본 발명에 따른 에어버블 쇄빙선의 개략도이고, 도 4는 확대도다.3 is a schematic view of an air bubble icebreaker according to the present invention, Figure 4 is an enlarged view.
도 3 및 4에 도시된 바와 같이, 본 발명에 따른 에어버블 쇄빙선(1)은 선수부에 형성된 복수개의 홀(100), 제1노즐(200), 제2노즐(300), 가이드부재(400), 압축기(500)를 포함한다.3 and 4, the air bubble icebreaker 1 according to the present invention is a plurality of holes 100 formed in the bow portion, the first nozzle 200, the second nozzle 300, the guide member 400 And a compressor 500.
복수개의 홀(100)은 선수부의 양측면에 형성되고, 흘수선 부근에 형성된다.The plurality of holes 100 are formed on both sides of the bow portion, and are formed near the draft line.
즉, 흘수선에 대해 수직선상에 복수개의 홀(100)이 나란히 일정간격 이격되어 배열된다. 이는 에어버블 쇄빙선(1)이 운항에 따라 흘수선이 변동하게 되고, 이에 따라 얼음과 접촉하는 선수부의 위치도 변화하게 되므로 이후 설명될 고압의 에어 분사 위치가 얼음 바로 아래에서 이루어지도록 하여 얼음 하단부에 공기층이 용이하게 형성되도록 하기 위한 것으로서, 고압의 에어가 분사될 홀(100)이 수직으로 배열되어 고압의 에어 분사 높이를 조절가능하도록 한 것이다.That is, the plurality of holes 100 are arranged side by side at a predetermined interval on the vertical line with respect to the draft line. This is because the air bubble icebreaker (1) changes the draft line according to the operation, and the position of the bow portion in contact with the ice also changes, so that the high-pressure air injection position to be described later to be made just below the ice air layer at the bottom of the ice In order to facilitate the formation, the holes 100 to which high pressure air is to be injected are vertically arranged to adjust the height of high pressure air injection.
제1노즐(200)은 복수개의 홀(100)의 개수와 대응되는 개수로 복수개의 홀(100)의 내부에 결합되어 연결된다. The first nozzle 200 is coupled to the inside of the plurality of holes 100 in a number corresponding to the number of the plurality of holes 100.
복수개의 제1노즐(200) 및 복수개의 홀(100)이 선수부에 내장된 형태로 형성된 것은 얼음이 선수부에 충돌하므로 돌출된 형상이라면 파손의 우려가 있기 때문에 선수부 내부에 내장형으로 형성시킨 것이다.The plurality of first nozzles 200 and the plurality of holes 100 are formed in the bow portion so that the ice collides with the bow portion, so that the protruding shape may cause damage.
제1노즐(200)의 일단은 홀(100)의 말단까지 연장되어 연결되고, 제1노즐(200)의 타단은 제2노즐(300)과 연결가능하다.One end of the first nozzle 200 extends to the end of the hole 100, and the other end of the first nozzle 200 is connectable to the second nozzle 300.
제1노즐(200)은 홀(100)과 동일한 직경으로 형성되어 얼음 바로 아래에서 고압의 에어를 분사하여 공기층이 쇄빙선의 진행방향을 따라 길게 형성되도록 할 수도 있고, 제1노즐(200)의 직경을 홀(100)의 직경보다 직경이 작게 하고, 제1노즐(200)의 외주면에 복수개의 미세홀(210)을 형성시켜 고압의 에어가 미세홀(210)을 관통하면서 물과 접촉하여 다량의 버블이 형성되어 쇄빙선 진행방향에 인접한 얼음 하단부에 공기층을 두껍게 형성하여 얼음에 작용하는 부력을 감소시킬 수도 있다.The first nozzle 200 may be formed to have the same diameter as the hole 100 to inject a high pressure air directly below the ice so that the air layer is formed long along the advancing direction of the icebreaker, the diameter of the first nozzle 200 The diameter of the hole 100 is smaller than the diameter of the hole 100, and a plurality of micro holes 210 are formed on the outer circumferential surface of the first nozzle 200 so that high-pressure air contacts the water while penetrating the micro holes 210. Bubbles may be formed to form a thick air layer at the bottom of the ice adjacent to the icebreaker direction, thereby reducing buoyancy acting on the ice.
제2노즐(300)은 선수부의 내부에 내장되고 제2노즐(300)을 상하이동가능하게 하는 가이드 부재(400)와 연결된다.The second nozzle 300 is connected to the guide member 400 which is built in the bow portion and makes the second nozzle 300 moveable.
본 발명에 따른 에어버블 쇄빙선(1)의 일측에는 흘수선을 감지할 수 있는 감지센서(600)가 부착되어 있다.On one side of the air bubble icebreaker 1 according to the present invention is attached a detection sensor 600 that can detect the waterline.
흘수선을 감지하는 것은 흘수선과 수평하게 얼음도 형성되어 있고, 얼음 바로 아래층에 고압의 공기를 분사하여 공기층을 용이하게 얼음 바로 아래에 형성시키기 위한 것으로서, 공기층이 형성되면, 공기층에 의해 얼음이 떠 있는 형태이고, 공기층에 부양된 얼음을 쇄빙선의 선수부가 타고올라 중력에 의해 가압하게 되면 얼음이 용이하게 쇄빙되는 효과가 있다.The water line is detected to have ice formed horizontally with the water line, and to inject high pressure air directly below the ice to easily form the air layer under the ice. When the air layer is formed, the ice floats by the air layer. It is in the form, and the ice lifted in the air layer is lifted by the gravity of the bow portion of the icebreaker has an effect that the ice is easily icebreaking.
따라서, 감지센서(600)에서 감지한 흘수선 위치에 인접한 하부로 제2노즐(300)을 가이드부재(400)를 따라 이동시키고, 제1노즐(200)과 제2노즐(300)을 연결한다.Therefore, the second nozzle 300 is moved along the guide member 400 to a lower portion adjacent to the waterline position detected by the sensing sensor 600, and connects the first nozzle 200 and the second nozzle 300.
제2노즐(300)과 제1노즐(200)이 연결되면, 제2노즐(300)에 고압의 에어를 압축기(500)를 이용하여 압축하여 제2노즐(300)에 공급하고 이는 제1노즐(200)을 통해 홀(100)로 분사된다. When the second nozzle 300 and the first nozzle 200 are connected, the high pressure air is compressed to the second nozzle 300 using the compressor 500 and supplied to the second nozzle 300, which is supplied to the first nozzle. It is injected into the hole 100 through the 200.
이 때 분사되는 에어버블의 위치는 얼음의 하단부에 해당된다.At this time, the position of the air bubble sprayed corresponds to the lower end of the ice.
제1노즐(200)과 제2노즐(300)의 연결시 고압의 에어가 누출되는 것을 방지하기 위해 제1노즐(200)과 제2노즐(300) 외주면은 이들을 감싸 밀폐 및 연결시키는 탈착가능한 밀폐연결부재(700)가 결합될 수 있다.In order to prevent leakage of high pressure air when the first nozzle 200 and the second nozzle 300 are connected, the outer circumferential surfaces of the first nozzle 200 and the second nozzle 300 are removable to seal and connect them. The connection member 700 may be coupled.
압축기(500)에서 압축되는 공기는 주위의 공기를 이용하여 압축시킬 수도 있고배기가스를 압축할 수도 있으며, 배기가스를 압축하여 공급하게 되면, 배기가스에 남아 있는 잔열을 이용하여 얼음이 녹으면서 강도가 약해지는 효과도 기대할 수 있다.The air compressed by the compressor 500 may be compressed by using ambient air or by compressing the exhaust gas. When the exhaust gas is compressed and supplied, the strength of the ice melts using the residual heat remaining in the exhaust gas. The weakening effect can also be expected.
배기가스를 이용하지 않더라도 주위의 에어를 가열시킨 후 압축시켜 분사함으로써, 배기가스를 이용한 효과를 거둘 수도 있다.Even if the exhaust gas is not used, the surrounding air can be heated and then compressed and sprayed to achieve the effect of using the exhaust gas.
도 5는 본 발명에 따른 에어버블 쇄빙선에 의한 쇄빙방법의 순서도이다.5 is a flow chart of the ice-breaking method by the air bubble icebreaker according to the present invention.
도 5에 도시된 바와 같이, 본 발명에 따른 에어버블 쇄빙선에 의한 쇄빙방법은 선수부의 양측면에 형성된 복수개의 홀(100); 복수개의 상기 홀(100)에 연결된 복수개의 제1노즐(200); 상기 제1노즐(200)과 연결가능한 제2노즐(300); 상기 제2노즐(300)을 상하이동시키는 가이드부재(400); 및 상기 제2노즐(300)에 고압의 에어를 제공하는 압축기(500); 및 흘수선을 감지하는 감지센서(600)를 포함하는 에어버블 쇄빙선(1)이 결빙해역을 항해할 때, 상기 감지센서(600)가 상기 흘수선을 감지하는 흘수선 감지단계(S100), 상기 흘수선 감지단계(S100)에서 흘수선을 감지하고, 상기 흘수선에 위치한 얼음의 하부에 공기층을 형성시키기 위해, 상기 제2노즐(300)을 상기 가이드부재(400)를 따라 이동시키는 노즐이동단계(S200); 상기 노즐이동단계(S200)에서 상기 제2노즐(300)이 상기 흘수선의 하부 인접한 위치에 위치할 때, 상기 제1노즐(200)과 상기 제2노즐(300)을 연결하는 노즐연결단계(S200); 및 상기 노즐연결단계(S200)에서 상기 제1노즐(200)과 상기 제2노즐(300)이 연결되면, 상기 압축기(500)를 통해 고압의 에어를 얼음의 하부에 분사하여 공기층을 형성하는 에어버블 분사단계(S300)를 포함하는 것을 특징으로 한다.As shown in Figure 5, the ice-breaking method by the air bubble icebreaker according to the present invention comprises a plurality of holes (100) formed on both sides of the bow portion; A plurality of first nozzles 200 connected to a plurality of holes 100; A second nozzle 300 connectable to the first nozzle 200; A guide member 400 which moves the second nozzle 300 to move; And a compressor (500) for providing high pressure air to the second nozzle (300). And a water line detection step (S100), wherein the water line detection step detects the water line when the air bubble icebreaker 1 sails a freezing area including a detection sensor 600 for detecting a water line. A nozzle movement step (S200) of detecting a water line in S100 and moving the second nozzle 300 along the guide member 400 to form an air layer at a lower portion of the ice located in the water line; When the second nozzle 300 is located at a lower adjacent position of the water line in the nozzle movement step (S200), the nozzle connection step of connecting the first nozzle 200 and the second nozzle 300 (S200). ); And when the first nozzle 200 and the second nozzle 300 is connected in the nozzle connection step (S200), the air to inject a high-pressure air through the compressor 500 to the lower portion of the ice to form an air layer It characterized in that it comprises a bubble spray step (S300).
또한, 에어버블 분사단계(S300)에 사용되는 에어는 배기가스일 수도 있다.In addition, the air used in the air bubble injection step (S300) may be exhaust gas.
이상에서 본 발명은 특정의 실시예와 관련하여 도시 및 설명하였지만, 첨부된 특허청구범위에 의해 나타난 발명의 사상 및 영역으로부터 벗어나지 않는 한도내에서 다양한 변경, 개조 및 변화가 가능하다는 것을 당 업계에서 통상의 지식을 가진 자라면 누구나 쉽게 알 수 있을 것이다.While the invention has been shown and described in connection with specific embodiments thereof, it is conventional in the art that various changes, modifications and variations are possible without departing from the spirit and scope of the invention as indicated by the appended claims. Anyone who knows the knowledge of is easy to know.
본 발명에 따르면, 선수부에 구비된 에어버블 분사 노즐에 의해 분사된 에어버블에 의해 쇄빙선의 진행방향의 얼음층 하부에 공기층을 형성시켜 얼음층을 상부로 부양시키고, 부양된 얼음층에 선수부가 올라타면서 자중을 가하게 되면, 얼음이 부력에 의한 영향 감소로 용이하게 쇄빙할 수 있으므로 쇄빙 분야에 보다 효과적으로 이용될 수 있다.According to the present invention, by forming an air layer under the ice layer in the advancing direction of the icebreaker by the air bubble sprayed by the air bubble injection nozzle provided in the bow portion to support the ice layer to the top, and the bow portion rises on the supported ice layer When the ice is added, the ice can be easily broken with reduced buoyancy and thus can be used more effectively in the field of icebreaking.

Claims (13)

  1. 얼음이 덮여 있는 결빙해역에서 얼음을 부수는 에어버블 쇄빙선에 있어서,In an air bubble icebreaker that breaks ice in ice-covered waters,
    선수부의 양측면에 형성된 복수개의 홀;A plurality of holes formed on both sides of the bow portion;
    복수개의 상기 홀에 연결된 복수개의 제1노즐;A plurality of first nozzles connected to a plurality of the holes;
    상기 제1노즐과 연결가능한 제2노즐;A second nozzle connectable to the first nozzle;
    상기 제2노즐을 상하이동시키는 가이드부재; 및 A guide member which moves the second nozzle up and down; And
    상기 제2노즐에 고압의 에어를 분사하는 압축기를 포함하는 것을 특징으로 하는 에어버블 쇄빙선.An air bubble icebreaker comprising a compressor for injecting high pressure air to the second nozzle.
  2. 제1항에 있어서,The method of claim 1,
    복수개의 상기 홀은 상기 선수부에 수직방향으로 일정간격 이격되어 배열되고, 흘수선에 인접하여 형성된 것을 특징으로 하는 에어버블 쇄빙선.The plurality of holes are arranged spaced apart at regular intervals in the vertical direction in the bow portion, the air bubble icebreaker, characterized in that formed adjacent to the draft line.
  3. 제2항에 있어서,The method of claim 2,
    상기 제1노즐은 복수개의 상기 홀에 대응되는 복수개가 상기 선수부에 내장되어 고정된 것을 특징으로 하는 에어버블 쇄빙선.The first nozzle is an air bubble icebreaker, characterized in that a plurality of corresponding to the plurality of holes is embedded in the bow portion and fixed.
  4. 제3항에 있어서,The method of claim 3,
    상기 제1노즐의 일단은 상기 홀까지 연장되고,One end of the first nozzle extends to the hole,
    상기 제1노즐의 타단은 상기 제2노즐과 연결가능한 것을 특징으로 하는 에어버블 쇄빙선.And the other end of the first nozzle is connectable to the second nozzle.
  5. 제4항에 있어서,The method of claim 4, wherein
    상기 제1노즐은 상기 홀보다 직경이 작고, 상기 제1노즐의 외주면에는 복수개의 미세홀이 형성되어 에어가 상기 제1노즐의 상기 미세홀을 통과하면서 버블이 형성되는 것을 특징으로 하는 에어버블 쇄빙선.The first nozzle has a diameter smaller than that of the hole, and a plurality of fine holes are formed on the outer circumferential surface of the first nozzle so that bubbles are formed while air passes through the fine holes of the first nozzle. .
  6. 제5항에 있어서,The method of claim 5,
    상기 제2노즐은 상기 가이드 부재를 따라 상기 선수부의 내부에서 상하이동가능한 것을 특징으로 하는 에어버블 쇄빙선.And the second nozzle is movable in the bow portion along the guide member.
  7. 제6항에 있어서,The method of claim 6,
    상기 흘수선을 측정가능한 감지센서를 포함하는 것을 특징으로 하는 에어버블 쇄빙선.And an air bubble icebreaker comprising a sensing sensor capable of measuring the water line.
  8. 제7항에 있어서,The method of claim 7, wherein
    상기 감지센서에서 측정된 흘수선의 위치에 따라, 복수개의 상기 홀중에서 상기 흘수선의 위치보다 하부에 위치한 홀과 연결된 상기 제1노즐의 타단에 상기 제2노즐을 상기 가이드 부재를 따라 이동시켜 연결하는 것을 특징으로 하는 에어버블 쇄빙선.Moving the second nozzle along the guide member to the other end of the first nozzle connected to the hole located below the position of the water line among the plurality of holes according to the position of the water line measured by the sensing sensor. An air bubble icebreaker.
  9. 제8항에 있어서,The method of claim 8,
    상기 압축기에서 고압의 에어를 상기 제2노즐에 공급하여 상기 흘수선에 위치한 상기 얼음의 하단부에 공기층을 형성시키는 것을 특징으로 하는 에어버블 쇄빙선.The air bubble icebreaker, characterized in that for supplying high-pressure air from the compressor to the second nozzle to form an air layer on the lower end of the ice located in the draft line.
  10. 제9항에 있어서, The method of claim 9,
    상기 제1노즐과 상기 제2노즐의 연결시 고압의 에어가 누출되는 것을 방지하기 위해, 상기 제1노즐과 상기 제2노즐의 외주면에 탈착가능한 밀폐연결부재를 포함하는 것을 특징으로 하는 에어버블 쇄빙선.An air bubble icebreaker comprising a hermetic connection member detachable to an outer circumferential surface of the first nozzle and the second nozzle in order to prevent leakage of high pressure air when the first nozzle and the second nozzle are connected. .
  11. 제10항에 있어서,The method of claim 10,
    상기 압축기는 배기가스를 압축하여 상기 제2노즐에 공급하는 것을 특징으로 하는 에어버블 쇄빙선.The compressor is an air bubble icebreaker, characterized in that for compressing the exhaust gas supplied to the second nozzle.
  12. 얼음이 덮여 있는 결빙해역에서 얼음을 부수는 에어버블 쇄빙선에 의한 쇄빙방법에 있어서,In the ice-breaking method by the air bubble icebreaker to break the ice in the ice-covered sea,
    선수부의 양측면에 형성된 복수개의 홀; 복수개의 상기 홀에 연결된 복수개의 제1노즐; 상기 제1노즐과 연결가능한 제2노즐; 상기 제2노즐을 상하이동시키는 가이드부재; 및 상기 제2노즐에 고압의 에어를 제공하는 압축기; 및 흘수선을 감지하는 감지센서를 포함하는 에어버블 쇄빙선이 상기 결빙해역을 항해할 때, 상기 감지센서가 상기 흘수선을 감지하는 흘수선 감지단계;A plurality of holes formed on both sides of the bow portion; A plurality of first nozzles connected to a plurality of the holes; A second nozzle connectable to the first nozzle; A guide member which moves the second nozzle up and down; And a compressor providing high pressure air to the second nozzle. And a draft line sensing step of sensing, by the sensing sensor, the draft line when the air bubble icebreaker sails the freezing sea area, the sensor comprising a sensing sensor sensing a draft line.
    상기 흘수선 감지단계에서 흘수선을 감지하고, 상기 흘수선에 위치한 얼음의 하부에 공기층을 형성시키기 위해, 상기 제2노즐을 상기 가이드부재를 따라 이동시키는 노즐이동단계;A nozzle movement step of sensing the water line in the water line detection step and moving the second nozzle along the guide member to form an air layer under the ice located in the water line;
    상기 노즐이동단계에서 상기 제2노즐이 상기 흘수선과 인접한 하부에 위치할 때, 상기 제1노즐과 상기 제2노즐을 연결하는 노즐연결단계; 및 A nozzle connecting step of connecting the first nozzle and the second nozzle when the second nozzle is located below the water line in the nozzle moving step; And
    상기 노즐연결단계에서 상기 제1노즐과 상기 제2노즐이 연결되면, 상기 압축기를 통해 고압의 에어를 상기 얼음의 하부에 분사하여 공기층을 형성하는 에어버블 분사단계를 포함하는 것을 특징으로 하는 에어버블 쇄빙선에 의한 쇄빙방법.When the first nozzle and the second nozzle is connected in the nozzle connection step, an air bubble injection step of injecting a high-pressure air through the compressor to the lower portion of the ice to form an air bubble, characterized in that it comprises an air bubble Icebreaking method by icebreaker.
  13. 제12항에 있어서,The method of claim 12,
    상기 에어버블 분사단계에 사용되는 에어는 배기가스인 것을 특징으로 하는 에어버블 쇄빙선에 의한 쇄빙방법.The ice breaking method of the air bubble icebreaker, characterized in that the air used in the air bubble injection step is an exhaust gas.
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CN108104051A (en) * 2017-12-27 2018-06-01 长春华普大通防冰工程技术有限公司 A kind of air blowing component and the anti-icing equipment with air blowing component
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CN111361718A (en) * 2020-03-09 2020-07-03 江苏科技大学 Cavitation resonance device for assisting submarine in ice breaking and water discharging and ice breaking method thereof
CN111361718B (en) * 2020-03-09 2021-10-29 江苏科技大学 Cavitation resonance device for assisting submarine in ice breaking and water discharging and ice breaking method thereof
CN111676920A (en) * 2020-07-14 2020-09-18 大连理工大学 Device for intercepting dirt, guaranteeing flood discharge and generating safety of reservoir in severe cold area

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