CN204846280U - Air curtain bow seals structure - Google Patents
Air curtain bow seals structure Download PDFInfo
- Publication number
- CN204846280U CN204846280U CN201520550722.4U CN201520550722U CN204846280U CN 204846280 U CN204846280 U CN 204846280U CN 201520550722 U CN201520550722 U CN 201520550722U CN 204846280 U CN204846280 U CN 204846280U
- Authority
- CN
- China
- Prior art keywords
- air curtain
- air
- bow
- high pressure
- aperture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Classifications
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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 utility model provides an air curtain bow seals structure specificly is one kind and improves local air cushion twinhull vessel and get over the air curtain bow seals structure of peak performance, and one row of fine and closely woven aperture or long and thin type air cleft aerifyd is opened connecting the wet deck bow position of bridge to this structure, aerifys to this intensive aperture or air cleft through the high pressure positive blower to form the seal membrane that the one deck was similar to the air curtain, this air film can reach that gas in the blanket gas dunnage has been eliminated again since the bow encapsulation put touch water and bring push away the water resistance, the utility model discloses reduce the resistance peak value on the whole, reached the purpose that improves this kind of boats and ships and get over the peak performance.
Description
Technical field
The utility model relates to a kind of structure improving ship resistance performance, particularly relates to a kind of air curtain bow seal structure, can change surface effect catamaran bow sealing gland form and reduces resistance to motion to reach thus improve the structure that it gets over peak performance.
Background technology
Surface effect catamaran combines the advantage of surface effect vehicle and common catamaran, and speed is fast, stability good, low in energy consumption, and due to its floor space large, be easier to keep the large-scale development.In general, surface effect catamaran has primary and secondary two resistance peak.At main resistance peak place, cause occurring trough in midship front because apron touches the air cushion wave making that water produces, trough, lower than the lamellar body of both sides so that high pressure gas effusion, produces phenomenon pumping gas.Phenomenon pumping gas result in the sharply decline of air-cushion pressure, Hull sinkage, Hull sinkage increases again bow stern seal device apron and pushes away water resistance, and now trough is deepened, and causes the further effusion of gas, and tail gas capsule rigidity is greater than bow seal apparatus makes hull trim by head increase, the coupled motions of ship strengthen, and the various phenomenon being unfavorable for getting over peak starts to occur, now further add again additional wave making resistance, cause main resistance peak higher, under extreme case, even cannot cross resistance peak.
During surface effect catamaran navigation, can cross resistance peak be the problem that designer is extremely concerned about.Resistance peak is too high, and main unit load can be caused to increase, and time serious, hull can be in always climb the peak stage, affects the use of boats and ships.Abatement resistance peak improves the important means that hull gets over peak performance, and bow seal apparatus touches the major reason that water is initiation additional wave making resistance increase resistance peak, changes the more peak performance that bow seal apparatus form can improve hull.Traditional Drag Reduction by Bubble Curtain principle utilizes the density of water and air, the difference of viscosity, passes into air alow, forms the gas-liquid two-phase mixed flow that one deck is thin, by the change of mixed flow density, viscosity and flow pattern, reduces the friction drag of hull.Use the thought of air curtain drag reduction, row's Process is set up at hull bow, and be filled with high speed and high pressure gas, the gas that the air curtain forming thin layer comes in closed air cushion cabin for replacing bow seal apparatus, thus eliminating the need and push away water resistance and additional wave making resistance because apron touches caused by water, reach minimizing resistance peak, improve the object of more peak performance.
Summary of the invention
The purpose of this utility model reduces surface effect catamaran resistance peak to improve the air curtain bow seal structure that it gets over peak performance in order to provide a kind of by changing bow air seal set form.
The purpose of this utility model is achieved in that and comprises surface effect catamaran body, the connecting bridge bottom surface of the stem of surface effect catamaran body is provided with high speed and high pressure gas passage, described high speed and high pressure gas passage is row's narrow categorizing style aperture or a slender type air cleft, and described high speed and high pressure gas passage is connected with gas supply system.
The utility model also comprises some architectural features like this:
1. described in, the distance of high speed and high pressure gas passage and stem is: the captain of to ten/10th 1/5th.
2. high speed and high pressure gas passage is row's narrow categorizing style aperture, and the lower end of each aperture is provided with two deflectors, and two deflectors are symmetricly set on the both sides of each aperture along the captain direction of surface effect catamaran body.
3. the angular range between the plane at deflector place described in and the plane at place, connecting bridge bottom surface is 30 ° to 90 °.
4. deflector described in is rectangular slab.
Compared with prior art, the beneficial effects of the utility model are: the utility model can close gas in air cushion cabin on the one hand, certain vertical aerodynamic torque can be provided on the other hand to hull, make the inclination angle that hull remains certain, keep certain stability, can also eliminate simultaneously bring because bow seal apparatus touches water push away water resistance, improve the more peak performance of this ship type.
Accompanying drawing explanation
Fig. 1 is elevational schematic of the present utility model;
Fig. 2 is the bow pore schematic diagram of the utility model not with deflector;
Fig. 3 is the bow pore schematic diagram of the utility model band deflector.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail.
The utility model provides a kind of air curtain bow seal structure, particularly a kind ofly improve the air curtain bow seal structure that surface effect catamaran gets over peak performance, also local air-cushion catamaran is applicable to, this structure opens the fine and closely woven inflation aperture of a row or a slender type air cleft in connecting bridge wet deck bow position, by high pressure positive blower to this Process or air cleft inflation, to form the diaphragm seal that one deck is similar to air curtain, this air film can either the gas in blanket gas dunnage turn eliminate bring because bow seal apparatus touches water push away water resistance, the utility model reduces resistance peak on the whole, reach and improve the object that peak performance got over by this kind of boats and ships.
Composition graphs 1 to 3, cancels the former bow air seal set of this ship type, comprises air bag and capsule refers to, arranges row's narrow categorizing style aperture or a slender type air cleft 1, pass into high-voltage high-speed gas at stem place, forms the air curtain of one deck uniform and delicate.
Described pore 1 is positioned at distance stem 1/10 to 1/15 captain place, connecting bridge 3 bottom surface, shares a set of gas supply system, also can have a set of independent gas supply system, to facilitate the adjustment carrying out air curtain flow velocity with pumping chamber 4 in connecting bridge 3; Pore 1 lower end can be provided with the deflector 2 of certain angle, and deflector 2 shape is oblong, is made up of altogether two boards, is arranged side by side in the both sides of pore 1 along captain direction, and deflector 2 is 30 °-90 ° with the angular range of connecting bridge 3 bottom surface.
The shape of described pore 1 (high speed and high pressure gas passage) can be a long strip type air cleft, also can be the intensive circular hole of a row.
The air curtain that the utility model produces can close air cushion cabin indoor gas on the one hand, certain vertical aerodynamic torque can be provided on the other hand, make the inclination angle that hull remains certain, keep certain stability, can also eliminate simultaneously bring because bow seal apparatus touches water push away water resistance, improve the more peak performance of this ship type.
The utility model cancels the former bow air seal set of this ship type, comprises air bag and capsule refers to; A deflation hole is arranged along beam direction in connecting bridge bottom surface; Pore is positioned at distance stem 1/10 to 1/15 captain place, connecting bridge bottom surface; A set of gas supply system is shared with pumping chamber in connecting bridge, or a set of independent gas supply system, to facilitate the adjustment carrying out air curtain flow velocity.
Cancel the former bow air seal set of this ship type, comprise air bag and capsule refers to; A deflation hole is arranged along beam direction in connecting bridge bottom surface; Pore is positioned at distance stem 1/10 to 1/15 captain place, connecting bridge bottom surface, and is provided with the deflector of certain angle in aperture lower end, and deflector shape is oblong, is made up of altogether two boards, is arranged side by side in pore both sides along captain direction; The angular range of deflector and connecting bridge bottom surface is 30 °-90 °; A set of gas supply system is shared with pumping chamber in connecting bridge, or a set of independent gas supply system.
Pore shape can be a long strip type air cleft, also can be the intensive circular hole of a row; The air curtain formed and the angular range of horizontal surface are 30 °-90 °.
Claims (6)
1. an air curtain bow seal structure, comprise surface effect catamaran body, it is characterized in that: the connecting bridge bottom surface of the stem of surface effect catamaran body is provided with high speed and high pressure gas passage, described high speed and high pressure gas passage is row's narrow categorizing style aperture or a slender type air cleft, and described high speed and high pressure gas passage is connected with gas supply system.
2. a kind of air curtain bow seal structure according to claim 1, is characterized in that: the distance of described high speed and high pressure gas passage and stem is: the captain of to ten/10th 1/5th.
3. a kind of air curtain bow seal structure according to claim 1 and 2, it is characterized in that: high speed and high pressure gas passage is row's narrow categorizing style aperture, and the lower end of each aperture is provided with two deflectors, two deflectors are symmetricly set on the both sides of each aperture along the captain direction of surface effect catamaran body.
4. a kind of air curtain bow seal structure according to claim 3, is characterized in that: the angular range between the plane at described deflector place and the plane at place, connecting bridge bottom surface is 30 ° to 90 °.
5. a kind of air curtain bow seal structure according to claim 3, is characterized in that: described deflector is rectangular slab.
6. a kind of air curtain bow seal structure according to claim 4, is characterized in that: described deflector is rectangular slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520550722.4U CN204846280U (en) | 2015-07-28 | 2015-07-28 | Air curtain bow seals structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520550722.4U CN204846280U (en) | 2015-07-28 | 2015-07-28 | Air curtain bow seals structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204846280U true CN204846280U (en) | 2015-12-09 |
Family
ID=54736855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520550722.4U Withdrawn - After Issue CN204846280U (en) | 2015-07-28 | 2015-07-28 | Air curtain bow seals structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204846280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059468A (en) * | 2015-07-28 | 2015-11-18 | 哈尔滨工程大学 | Air-curtain bow sealing structure |
-
2015
- 2015-07-28 CN CN201520550722.4U patent/CN204846280U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059468A (en) * | 2015-07-28 | 2015-11-18 | 哈尔滨工程大学 | Air-curtain bow sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20171003 |
|
| AV01 | Patent right actively abandoned |