CN115056930A - Water-spraying auxiliary ice-breaking system for generating hull lubrication and side-pushing effect - Google Patents
Water-spraying auxiliary ice-breaking system for generating hull lubrication and side-pushing effect Download PDFInfo
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- CN115056930A CN115056930A CN202210565583.7A CN202210565583A CN115056930A CN 115056930 A CN115056930 A CN 115056930A CN 202210565583 A CN202210565583 A CN 202210565583A CN 115056930 A CN115056930 A CN 115056930A
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- water
- lubrication
- ship
- hull
- seawater
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- 238000005461 lubrication Methods 0.000 title claims abstract description 38
- 238000005507 spraying Methods 0.000 title claims abstract description 30
- 230000000694 effects Effects 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000013535 sea water Substances 0.000 claims abstract description 70
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 27
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 claims abstract 4
- 239000007921 spray Substances 0.000 claims description 32
- 239000000446 fuel Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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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
- B63B35/083—Ice-breakers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Nozzles (AREA)
Abstract
The invention relates to a water-spraying auxiliary ice-breaking system for generating hull lubrication and side thrust effects, which comprises a special sea water gate, a high-power sea water pump, a power supply and control box, a remote control valve, nozzles, a sea water pipeline and accessories, wherein a series of water spraying ports are arranged on a hull side and a hull bow, the water spraying ports are provided with bidirectional nozzles, the bidirectional nozzles are connected with the special sea water gate through the remote control valve and the high-power sea water pump, the water quantity of the water spraying ports and the direction of a bidirectional nozzle flow channel are controlled by adjusting the power of the high-power water pump and controlling the switch of the remote control valve, and the functions of water-spraying lubrication and bow side thrust are respectively realized. The invention can improve the ice breaking capacity of the ice breaker, improve the motion performance of the ice breaker in the ice area navigation, reduce the navigation resistance and reduce the fuel consumption, and can also provide the ice breaker with lateral thrust.
Description
Technical Field
The invention relates to a water spraying auxiliary ice breaking system, which is applied to the field of design and manufacture of polar ships.
Background
In recent 40 years, the coverage area and thickness of the arctic sea ice are continuously reduced, the arctic navigation and resource development are increasingly realized, and the requirements of the international ship market on professional icebreakers, various polar transport ships and engineering ships are more and more urgent due to huge economic benefits and important strategic meanings. The ice breaker is used as a ship for active ice breaking operation, moves in polar regions all the year round and may encounter ice conditions except designed ice conditions, so that researchers pay more attention to the ice breaking capacity and the movement performance of polar ships in the ice regions, meanwhile, the ship body navigation resistance is reduced, and the economy of the ship is improved. The water-spraying auxiliary ice-breaking system aims to spray water into surrounding seawater by installing a series of nozzles on the side and the bow of an ice-breaking ship to form water flow along an outer ship plate, reduce the resistance of water, ice and snow and the outer ship plate, and simultaneously wash surrounding broken ice away to widen a channel so as to achieve the effect of assisting in breaking and removing ice; at present, the domestic market lacks a side thrust device specially used under the working condition of high ice level, a tunnel type side thrust system commonly used for ship bow side thrust is not suitable for an icebreaker with a bow structure needing special reinforcement due to the fact that the tunnel type side thrust system occupies larger bow space, and meanwhile due to the existence of a tunnel, the icebreaker is easy to block ice when sailing and icebreaking are carried out under the polar environment.
As the above is combined, the water spray lubrication function and the side thrust function are combined in one system, the problems can be effectively solved, on one hand, the ice blockage phenomenon can be avoided by adopting the nozzle side thrust, and on the other hand, the occupancy rate of the bow space is greatly reduced on the basis of ensuring the side thrust function, thereby being beneficial to the design of the ship shape and the strengthening of the bow space structure; on the other hand, when the ship sails in the polar region environment, the friction resistance between the ice layer and the ship body is high, lubrication can be formed between the outer surface of the ship body and the broken ice layer after the broadside water spraying, the ice breaking resistance can be greatly reduced, the ice breaking capacity of the ship is further improved, and the economy of the ship is improved.
Disclosure of Invention
Aiming at the problem that the ship body resistance is increased due to the accumulation of crushed ice on the side and the bow of the icebreaker under the ice breaking working condition, the invention provides a water-spraying auxiliary ice breaking system for generating ship body lubrication and side thrust effects, which aims to improve the ice breaking capacity of the icebreaker, provide side thrust for the icebreaker, improve the motion performance of the icebreaker in the ice region and reduce the navigation resistance and fuel consumption.
In order to achieve the purpose, the technical scheme of the invention is as follows: a water-spraying auxiliary ice breaking system for generating hull lubrication and side thrust effects comprises a special seawater gate, a high-power seawater pump, a power supply and control box, a remote control valve, a nozzle and a seawater pipeline, wherein a series of water spraying ports are formed in a ship hull side and a ship hull bow, the water spraying ports are provided with two-way nozzles, the two-way nozzles are connected with the special seawater gate through the remote control valve and the high-power seawater pump, and the water quantity of the water spraying ports and the direction of a flow passage of the two-way nozzles are controlled by adjusting the power of the high-power water pump and controlling the switch of the remote control valve, so that the functions of water-spraying lubrication and bow side thrust are realized.
Furthermore, the high-power seawater pump is a two-stage variable frequency pump, and the two-stage variable frequency pump selects the operation power through a control box and is respectively used for water spraying lubrication and side pushing under two different working conditions.
Further, the bidirectional nozzle is connected with a high-power seawater pump through a nozzle branch pipe and a seawater main pipe.
Furthermore, the seawater main pipe and each nozzle branch pipe are provided with remote control valves, so that the remote control function of the system is realized.
Furthermore, the bidirectional nozzle on the ship side is a bidirectional nozzle with a certain included angle.
Further, during water spraying and lubrication, the water flow direction of the bidirectional nozzle faces the stern direction and is attached to the ship body, the horizontal direction of the bidirectional nozzle is inclined downwards, water is sprayed into the surrounding sea water, and water flow is formed along the outer ship plate.
Further, when the water spraying side is pushed, the water flow direction of the bidirectional nozzle is vertical to the central line of the ship body and is ejected along the horizontal direction.
Further, a left and right bidirectional nozzle is arranged on the bow of the ship body, and water flow of the left and right bidirectional nozzle is ejected leftwards or rightwards when the water is sprayed and laterally pushed.
Furthermore, the water-spraying auxiliary ice-breaking is used as a functional system, and one or two special seawater doors are arranged according to the line type and the space size of the ship body.
Furthermore, the seawater suction ports of the plurality of high-power seawater pumps are respectively connected with a seawater tank, and the seawater outlet is connected with the left and right nozzle branch pipes through a seawater main pipe.
The invention has the beneficial effects that:
firstly lie in through a series of two-way nozzle and sea water pipeline of part installation above the minimum waterline of icebreaker topside, pass through the nozzle with the sea water and spray in aqueous, form along hull planking slant decurrent rivers, can reduce water effectively when navigation, the resistance of ice and snow and planking, be favorable to the icebreaker to develop and collide formula icebreaking or continuous type icebreaking, also can wash away the broken ice on every side simultaneously and widen the passageway, reach supplementary clear ice effect of icebreaking, the power output is reduced, the economic nature of boats and ships is improved.
Secondly, a series of nozzles and seawater pipelines are arranged on the side of the icebreaking ship and above the lowest waterline of the bow part, and seawater is sprayed into water through the nozzles, so that a side-pushing effect is achieved.
The water spray lubrication and side pushing technology adopted by the invention is a novel green technology, and has a series of advantages of reproducibility, no pollution, repeated use, little environmental disturbance and the like. The system can improve the auxiliary ice-breaking effect by reducing the frictional resistance between the ship outer plate and ice, snow and water, improve the economy of the ship, and simultaneously also consider the side-pushing function.
Drawings
FIG. 1 is a schematic diagram of a water spray lubrication and side-push system of the present invention for reducing friction between a hull and ice and snow in ice, reducing ice resistance, and improving the ice breaking capability of an icebreaker;
FIG. 2 is a schematic view of the water spray lubrication mode of the present invention;
FIG. 3 is a schematic view of the water spray side-push mode of the present invention;
in the drawings: 1. special seawater gates; 2. a high-power two-stage variable frequency seawater pump; 3. a seawater pipeline; 4. a remote control valve; 5. a ship-side bi-directional nozzle; 6. a bow bi-directional nozzle; 7. a seawater tank.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments specifically describe the technical solutions provided by the invention with reference to the drawings, but the following contents are not limited by the invention.
As shown in fig. 1, 2 and 3, the present embodiment provides a water spray lubrication and side-push system having a side-push function in an open water area, reducing friction between a hull and ice and snow in ice, reducing ice resistance, and improving an icebreaker's icebreaking capability, comprising: the device comprises a special seawater gate 1, a high-power two-stage variable frequency seawater pump 2, a seawater pipeline 3, a remote control valve 4, a ship side bidirectional nozzle 5 and a bow bidirectional nozzle 6.
Specifically, in the ship body side part, a high-power two-stage variable frequency seawater pump 2 sucks seawater from a special seawater gate 1 and sprays the seawater into the water through a seawater pipeline 3, a remote control valve 4 and a series of water spray ports, the ship side bidirectional nozzle 5 is arranged at the water spray ports, and the water quantity of the water spray ports and the selection of the flow channel direction of the ship side bidirectional nozzle 5 are controlled by adjusting the power of the high-power two-stage variable frequency seawater pump 2 and controlling the switch of the remote control valve 4, so that the functions of water spray lubrication and bow side pushing are realized.
In the bow part, seawater is sucked from a special seawater gate 1 through a high-power two-stage frequency conversion seawater pump 2 and is sprayed into the water through a seawater pipeline 3, a remote control valve 4 and a series of water spraying ports, bow two-way nozzles 6 are arranged on the water spraying ports, and the bow side pushing and lubricating functions are realized by adjusting the power of the high-power two-stage frequency conversion seawater pump 2 and controlling the selection of the flow channel direction of the bow two-way nozzles 6 through the switch of the remote control valve 4.
The water-spraying lubrication and side-pushing system has the advantages that the side-pushing function is achieved in an open water area, friction between a ship body and ice and snow can be reduced in ice, the ice resistance is reduced, the water-spraying lubrication and side-pushing function is achieved, the ice breaking capacity of the icebreaker is improved, the high-power seawater pump is a two-stage variable frequency pump, the operating power of the seawater pump is selected through the control box, the high-power seawater pump is suitable for two different working conditions of water-spraying lubrication and side-pushing, the system can be used when the icebreaker runs at low speed and high speed, and the two parts respectively run independently and cannot be used simultaneously.
The water spray lubrication and side-push system has the side-push function in an open water area, can reduce friction between a ship body and ice and snow in ice to reduce ice resistance, and improves the ice breaking capacity of the icebreaker, wherein the seawater main pipe and each nozzle branch pipe are provided with the remote control valve, so that the remote control function of the system is realized.
The above-mentioned water spray lubrication and side push system having a side push function in an open water area, reducing friction between the hull and the ice and snow in ice, reducing ice resistance, and improving ice breaking capability of the ice breaker, wherein the side portion of the hull is a bidirectional nozzle having a certain included angle, and during water spray lubrication, the water flow direction should be directed toward the stern direction and be attached to the hull as much as possible and be inclined downward in the horizontal direction (as shown in fig. 2), and water is sprayed into the surrounding sea water to form water flow along the outer board of the ship.
The above-mentioned water-spraying lubrication and side-pushing system has a side-pushing function in an open water area, and can reduce friction between the hull and ice and snow in ice, reduce ice resistance, and improve the ice breaking capability of the ice breaker, wherein the side part of the hull is a bidirectional nozzle with a certain included angle, and when the water-spraying side-pushing system is used, water flow is ejected in a horizontal direction perpendicular to the centerline of the hull (as shown in fig. 3).
The water spray lubrication and side push system has the side push function in the open water area, can reduce the friction between the ship body and the ice and snow in the ice, reduces the ice resistance, and improves the ice breaking capacity of the ice breaker, wherein the bow part of the ice breaker is a left and right bidirectional nozzle, and water flow is ejected leftwards or rightwards during water spray side push.
Preferably, the special seawater gate 1 comprises a left special seawater gate and a right special seawater gate, which are respectively arranged at the left and right sides of the seawater tank 7 and connected with the seawater tank 7.
Preferably, the seawater inlets of the plurality of high-power seawater pumps are respectively connected with a seawater tank 7, and the seawater outlets are connected with the left and right nozzle branch pipes through a seawater main pipe.
Claims (10)
1. A water spray assisted ice breaking system for creating hull lubrication and side thrust effects, characterized by: the marine water jet lubrication device comprises a special marine water gate, a high-power marine water pump, a power supply and control box, a remote control valve, a nozzle and a marine water pipeline, wherein a series of water spray nozzles are arranged on a ship side and a ship bow, the water spray nozzles are provided with bidirectional nozzles, the bidirectional nozzles are connected with the special marine water gate through the remote control valve and the high-power marine water pump, and the water quantity of the water spray nozzles and the direction of a flow passage of the bidirectional nozzles are controlled by adjusting the power of the high-power water pump and controlling the switch of the remote control valve, so that the functions of water spray lubrication and bow side pushing are respectively realized.
2. The water spray assisted ice breaking system for creating hull lubrication and side thrust effect of a ship of claim 1, wherein: the high-power seawater pump is a two-stage variable frequency pump, and the two-stage variable frequency pump selects operation power through a control box and is respectively used for water spraying lubrication and side pushing under two different working conditions.
3. The water spray assisted ice breaking system for creating hull lubrication and side thrust effect of a ship of claim 1, wherein: the two-way nozzle is connected with the high-power seawater pump through the nozzle branch pipe and the seawater main pipe.
4. A water spray assisted ice breaking system for creating hull lubrication and side thrust effect according to claim 3 characterized in that: the seawater main pipe and each nozzle branch pipe are provided with remote control valves, so that the remote control function of the system is realized.
5. The water spray assisted ice breaking system for creating hull lubrication and side thrust effect of a ship of claim 1, wherein: the bidirectional nozzle on the ship side is a bidirectional nozzle with a certain included angle.
6. The water spray assisted ice breaking system for creating hull lubrication and side thrust effect of a ship of claim 5, wherein: when water is sprayed for lubrication, the water flow direction of the bidirectional nozzle faces the stern direction and is attached to the hull, the horizontal direction is downward in a slant manner, water is sprayed into the surrounding sea water, and water flow is formed along the outer board of the ship.
7. The water spray assisted ice breaking system for creating hull lubrication and side thrust effect of a ship of claim 5, wherein: when the water spraying side is pushed, the water flow direction of the bidirectional nozzle is vertical to the central line of the ship body and is ejected leftwards or rightwards along the horizontal direction.
8. The water spray assisted ice breaking system for creating hull lubrication and side thrust effect of a ship of claim 1, wherein: the ship bow is provided with a left and right bidirectional nozzle, and when water is sprayed and laterally pushed, water flow of the left and right bidirectional nozzle is ejected leftwards or rightwards.
9. The water spray assisted ice breaking system for creating hull lubrication and side thrust effect of a ship of claim 1, wherein: the water-spraying auxiliary ice-breaking system is used as a functional system, and one or two special seawater doors are arranged according to the line type and the space size of the ship body.
10. The water spray assisted ice breaking system for creating hull lubrication and side thrust effect of a ship of claim 1, wherein: the seawater suction ports of the high-power seawater pumps are respectively connected with a seawater tank, and the seawater outlet is connected with the left and right nozzle branch pipes through a seawater main pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210565583.7A CN115056930B (en) | 2022-05-23 | 2022-05-23 | Water-spraying auxiliary ice breaking system for generating hull lubrication and side pushing effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210565583.7A CN115056930B (en) | 2022-05-23 | 2022-05-23 | Water-spraying auxiliary ice breaking system for generating hull lubrication and side pushing effect |
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| Publication Number | Publication Date |
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| CN115056930A true CN115056930A (en) | 2022-09-16 |
| CN115056930B CN115056930B (en) | 2024-05-31 |
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| CN202210565583.7A Active CN115056930B (en) | 2022-05-23 | 2022-05-23 | Water-spraying auxiliary ice breaking system for generating hull lubrication and side pushing effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115723908A (en) * | 2022-12-06 | 2023-03-03 | 中国船舶集团有限公司第七○八研究所 | Bidirectional nozzle device for water-spraying auxiliary ice breaking system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102895A (en) * | 1985-04-15 | 1986-10-15 | 日本钢管株式会社 | Ship for icy seas |
| JP2001180581A (en) * | 1999-12-24 | 2001-07-03 | Nkk Corp | Ice breaker, and operation method thereof |
| KR20090048135A (en) * | 2007-11-09 | 2009-05-13 | 삼성중공업 주식회사 | Ice strengthened ship for preventing ice collision |
| CN201980408U (en) * | 2011-03-15 | 2011-09-21 | 广州市番禺粤新造船有限公司 | Lateral thruster for three-direction water spraying thrusting boat |
| CN107499488A (en) * | 2017-09-20 | 2017-12-22 | 浙江长舸信息技术服务有限公司 | A kind of ship water spray lateral thruster |
| CN111361684A (en) * | 2020-03-20 | 2020-07-03 | 中国船舶工业集团公司第七0八研究所 | Ship drag reduction and auxiliary ice breaking bubble system |
| KR20210157982A (en) * | 2020-06-23 | 2021-12-30 | 삼성중공업 주식회사 | Ship |
-
2022
- 2022-05-23 CN CN202210565583.7A patent/CN115056930B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102895A (en) * | 1985-04-15 | 1986-10-15 | 日本钢管株式会社 | Ship for icy seas |
| JP2001180581A (en) * | 1999-12-24 | 2001-07-03 | Nkk Corp | Ice breaker, and operation method thereof |
| KR20090048135A (en) * | 2007-11-09 | 2009-05-13 | 삼성중공업 주식회사 | Ice strengthened ship for preventing ice collision |
| CN201980408U (en) * | 2011-03-15 | 2011-09-21 | 广州市番禺粤新造船有限公司 | Lateral thruster for three-direction water spraying thrusting boat |
| CN107499488A (en) * | 2017-09-20 | 2017-12-22 | 浙江长舸信息技术服务有限公司 | A kind of ship water spray lateral thruster |
| CN111361684A (en) * | 2020-03-20 | 2020-07-03 | 中国船舶工业集团公司第七0八研究所 | Ship drag reduction and auxiliary ice breaking bubble system |
| KR20210157982A (en) * | 2020-06-23 | 2021-12-30 | 삼성중공업 주식회사 | Ship |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115723908A (en) * | 2022-12-06 | 2023-03-03 | 中国船舶集团有限公司第七○八研究所 | Bidirectional nozzle device for water-spraying auxiliary ice breaking system |
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| CN115056930B (en) | 2024-05-31 |
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