CN103192946A - Wedge-shaped hull bottom anti-drag air layer maintaining structure - Google Patents
Wedge-shaped hull bottom anti-drag air layer maintaining structure Download PDFInfo
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- CN103192946A CN103192946A CN201310136917XA CN201310136917A CN103192946A CN 103192946 A CN103192946 A CN 103192946A CN 201310136917X A CN201310136917X A CN 201310136917XA CN 201310136917 A CN201310136917 A CN 201310136917A CN 103192946 A CN103192946 A CN 103192946A
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- hull bottom
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- drag
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Abstract
The invention relates to a wedge-shaped hull bottom anti-drag air layer maintaining structure, and provides an air layer maintaining device low in energy consumption, good in anti-drag effect and low in cost by designing a hull bottom structure with step-arranged wedge-shaped air chambers. The key solution points include that the wedge-shaped hull bottom anti-drag air layer maintaining structure is formed by connecting more than two mutually parallel longitudinal partition plates which are perpendicular to a hull bottom with oblique bottoms of a hull along the longitudinal direction of the hull; the oblique bottoms of the hull are uniformly partitioned by the longitudinal partition plates into one to more air chambers which are appropriate in length, width and depth and used for maintaining the air layer; and air is injected into the air chambers, the step-arranged wedge-shaped air chambers can well maintain the injected air at the hull bottom when a ship transversely shakes, overflow of anti-drag air is effectively reduced, and the air layer covering the vast majority of area of the hull bottom is formed to enable to the hull bottom to be separated from water, so that sailing drag of the ship is greatly lowered, and sailing energy consumption of the ship is further reduced. The wedge-shaped hull bottom anti-drag air layer maintaining structure is low in energy consumption, remarkable in anti-drag effect, capable of realizing low cost and emission reduction, convenient to construct and low in manufacturing cost, and can well maintain the line style of original ship types.
Description
Technical field
The present invention relates to a kind of wedge shape hull bottom drag reduction gas-bearing formation and keep structure.
Background technology
Hull surface gas-bearing formation lubrication drag reduction technology can significantly reduce ship resistance, reduces consumption of fuel, improves ship speed, has important economic value and the value of environmental protection.Over nearly 30 years, by a large amount of experimental studies, gas-bearing formation drag reduction technology, its good drag-reduction effect are checked by test, and have obtained real ship application.
The bottom structure of gas-bearing formation drag reduction ship has following three kinds of patterns: plain base bottom structure design, inner concave shape bottom structure and be applied to faulted-stage formula structure design on the high-speed boat.The shortcoming of plain base bottom structure design is that the compression of injecting the hull bottom appearance adheres to the hull difficulty, will directly cause the supply of boats and ships pressurized air to increase, and apparatus capacity strengthens, and difficulty has good energy-saving effect, and flat additional attached body has certain operating influence.The inner concave shape bottom structure has the structure air cavity can stablize gas-bearing formation, realizes good drag-reduction effect, but is difficult to realize at existing ship.And the shortcoming of the structure design of faulted-stage formula is to be used for small-sized high-speed boat, can not be applied on the large transport ship oceangoing ship, and limitation is obvious.
More than various different types bottom structures be applicable to not shipmate type, merits and faults is respectively arranged.There is not at present the gas-bearing formation at the wedged bottom carrier to keep structure design maybe can solve the better drag reduction gas-bearing formation maintenance structure of above-mentioned different structure shortcoming as yet, design a kind of be applicable to the wedged bottom carrier and can reduce ship structure arrange change, reduce the air demand demand, under the motion of ship situation, keep stable gas-bearing formation, the novel gas-bearing formation that reaches best drag-reduction effect keeps structure, and is significant to realizing the ship's navigation energy-saving and emission-reduction.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, fill up the blank that the wedged bottom carrier is used the gas-bearing formation drag reduction technology, adopt ladder to arrange the bottom structure design of wedge shape air cavity, provide that a kind of energy consumption is low, drag-reduction effect good, cheap gas-bearing formation holding device.
For reaching above purpose, the technical solution used in the present invention is: a kind of wedge shape hull bottom drag reduction gas-bearing formation keeps structure, specifically comprises: ship is flat, midfeather, ship wedged bottom;
It is characterized in that: described a kind of wedge shape hull bottom drag reduction gas-bearing formation keep structure be by be parallel to each other more than two and perpendicular to the midfeather of hull bottom along hull vertically and the ship wedged bottom connect and compose; Midfeather is used for the air cavity that the ship wedged bottom on average is divided into one or more suitable length, width and the degree of depth to keep gas-bearing formation, arranges that midfeather both can participate in resulting intensity according to the boats and ships needs, also can not participate in but look four above midfeather ladders of beam situation.
Its effect is: air is injected into air cavity, ladder arranges that the wedge shape air cavity also can remain on hull bottom with the air that injects preferably when boats and ships have the rolling situation, it is excessive to reduce the drag reduction air effectively, form the gas-bearing formation that covers hull bottom overwhelming majority area, hull bottom and water are isolated, thereby reduce the running resistance of boats and ships greatly, and then the energy consumption of travelling of reduction boats and ships, this vertical diaphragm plate is as the attached body structure of hull bottom appearance simultaneously, do not lean out the hull bottom baseline owing to the wedged bottom respective outer side edges, thereby avoid the influence to the ship operation.
The invention has the beneficial effects as follows: adopt ladder to arrange the bottom structure design of wedge shape air cavity, a plurality of air cavitys can remain on hull bottom well with air, and it is excessive to reduce air effectively; The structure that keeps this gas-bearing formation can effectively reduce the running resistance of boats and ships, improves route speed, cuts down the consumption of energy, and realizes low-cost and reduction of discharging, has remarkable economic efficiency and social benefit; This gas-bearing formation keeps structure also to provide a kind of effective scheme for the carrier that wedged bottom is arranged is transformed into gas-bearing formation drag reduction ship.The repacking that present technique both can be used for carrier also can be used for the design-build of new ship type, and easy construction can be kept the line style of original ship shape preferably, realizes boats and ships gas-bearing formation drag reduction, reaches the purpose of energy-saving and emission-reduction.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Structure of the present invention as shown in Figure 1, a kind of wedge shape hull bottom drag reduction gas-bearing formation keeps structure,
Specifically comprise: ship is flat 1, midfeather 2, ship wedged bottom 4;
It is characterized in that: described a kind of wedge shape hull bottom drag reduction gas-bearing formation keep structure be by be parallel to each other more than two and perpendicular to the midfeather 2 of hull bottom along hull vertically and ship wedged bottom 4 connect and compose; Midfeather 2 is used for the air cavity 3 that ship wedged bottom 4 on average is divided into one or more suitable length, width and the degree of depth to keep gas-bearing formation, arranges that midfeather 2 both can participate in resulting intensity according to the boats and ships needs, also can not participate in but look four above midfeather 2 ladders of beam situation.
Its effect is: air is injected into air cavity 3, ladder arranges that the wedge shape air cavity also can remain on hull bottom with the air that injects preferably when boats and ships have the rolling situation, it is excessive to reduce the drag reduction air effectively, form the gas-bearing formation that covers hull bottom overwhelming majority area, hull bottom and water are isolated, thereby reduce the running resistance of boats and ships greatly, and then the energy consumption of travelling of reduction boats and ships, this vertical diaphragm plate 2 is as the attached body structure of hull bottom appearance simultaneously, do not lean out the hull bottom baseline owing to the wedged bottom respective outer side edges, thereby avoid the influence to the ship operation.
The invention has the beneficial effects as follows: adopt ladder to arrange the bottom structure design of wedge shape air cavity, a plurality of air cavitys can remain on hull bottom well with air, and it is excessive to reduce air effectively; The structure that keeps this gas-bearing formation can effectively reduce the running resistance of boats and ships, improves route speed, cuts down the consumption of energy, and realizes low-cost and reduction of discharging, has remarkable economic efficiency and social benefit; This gas-bearing formation keeps structure also to provide a kind of effective scheme for the carrier that wedged bottom is arranged is transformed into gas-bearing formation drag reduction ship.The repacking that present technique both can be used for carrier also can be used for the design-build of new ship type, and easy construction can be kept the line style of original ship shape preferably, realizes boats and ships gas-bearing formation drag reduction, reaches the purpose of energy-saving and emission-reduction.
Claims (1)
1. a wedge shape hull bottom drag reduction gas-bearing formation keeps structure, specifically comprises: ship flat (1), midfeather (2), ship wedged bottom (4); It is characterized in that: described a kind of wedge shape hull bottom drag reduction gas-bearing formation keep structure be by be parallel to each other more than two and perpendicular to the midfeather (2) of hull bottom along hull vertically and ship wedged bottom (4) connect and compose; Midfeather (2) is used for keeping gas-bearing formation with the air cavity (3) that ship wedged bottom (4) on average is divided into one or more suitable length, width and the degree of depth, look four above midfeathers of beam situation (2) but the ladder layout, midfeather (2) both can participate in resulting intensity according to the boats and ships needs, also can not participate in; Its effect is: air is injected into air cavity (3), ladder arranges that the wedge shape air cavity also can remain on hull bottom with the air that injects preferably when boats and ships have the rolling situation, it is excessive to reduce the drag reduction air effectively, form the gas-bearing formation that covers hull bottom overwhelming majority area, hull bottom and water are isolated, thereby reduce the running resistance of boats and ships greatly, and then the energy consumption of travelling of reduction boats and ships, this vertical diaphragm plate (2) is as the attached body structure of hull bottom appearance simultaneously, do not lean out the hull bottom baseline owing to the wedged bottom respective outer side edges, thereby avoid the influence to the ship operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136917XA CN103192946A (en) | 2013-04-19 | 2013-04-19 | Wedge-shaped hull bottom anti-drag air layer maintaining structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136917XA CN103192946A (en) | 2013-04-19 | 2013-04-19 | Wedge-shaped hull bottom anti-drag air layer maintaining structure |
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| CN103192946A true CN103192946A (en) | 2013-07-10 |
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| CN201310136917XA Pending CN103192946A (en) | 2013-04-19 | 2013-04-19 | Wedge-shaped hull bottom anti-drag air layer maintaining structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548147A (en) * | 2021-09-02 | 2021-10-26 | 中国船舶科学研究中心 | Bulk cargo ship with comprehensive energy-saving effect meeting EEDI high-stage requirements |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6606959B1 (en) * | 2002-06-12 | 2003-08-19 | The United States Of America As Represented By The Secretary Of The Navy | High speed drag reducing ventilation for marine vessel hulls |
| CN2651137Y (en) * | 2003-09-02 | 2004-10-27 | 傅德俐 | Wave divider of motor boat |
| CN1662414A (en) * | 2002-05-07 | 2005-08-31 | Dk集团荷属安的列斯群岛公司 | Air cavity vessel with wedge-shaped cavities, longitudinally offset cavities, and roll control means and method for constructing the same |
| KR100650054B1 (en) * | 2006-05-19 | 2006-11-28 | 한일뉴즈주식회사 | An improvement device for running performance of rigid inflatable boat |
| CN102259686A (en) * | 2010-05-26 | 2011-11-30 | 徐际长 | Wave resistant acceleration bag of ships |
| CN202107072U (en) * | 2011-04-29 | 2012-01-11 | 修明辉 | Quickly running ship |
| CN102770339A (en) * | 2010-02-23 | 2012-11-07 | 独立行政法人海上技术安全研究所 | Ship hull structure comprising wave resistance increase minimizing steps |
-
2013
- 2013-04-19 CN CN201310136917XA patent/CN103192946A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1662414A (en) * | 2002-05-07 | 2005-08-31 | Dk集团荷属安的列斯群岛公司 | Air cavity vessel with wedge-shaped cavities, longitudinally offset cavities, and roll control means and method for constructing the same |
| US6606959B1 (en) * | 2002-06-12 | 2003-08-19 | The United States Of America As Represented By The Secretary Of The Navy | High speed drag reducing ventilation for marine vessel hulls |
| CN2651137Y (en) * | 2003-09-02 | 2004-10-27 | 傅德俐 | Wave divider of motor boat |
| KR100650054B1 (en) * | 2006-05-19 | 2006-11-28 | 한일뉴즈주식회사 | An improvement device for running performance of rigid inflatable boat |
| CN102770339A (en) * | 2010-02-23 | 2012-11-07 | 独立行政法人海上技术安全研究所 | Ship hull structure comprising wave resistance increase minimizing steps |
| CN102259686A (en) * | 2010-05-26 | 2011-11-30 | 徐际长 | Wave resistant acceleration bag of ships |
| CN202107072U (en) * | 2011-04-29 | 2012-01-11 | 修明辉 | Quickly running ship |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548147A (en) * | 2021-09-02 | 2021-10-26 | 中国船舶科学研究中心 | Bulk cargo ship with comprehensive energy-saving effect meeting EEDI high-stage requirements |
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Application publication date: 20130710 |