CN108177724A - A kind of voltage stabilizing cavity configuration and installation method for resistance reduction by air cavity technology - Google Patents
A kind of voltage stabilizing cavity configuration and installation method for resistance reduction by air cavity technology Download PDFInfo
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- CN108177724A CN108177724A CN201810024659.9A CN201810024659A CN108177724A CN 108177724 A CN108177724 A CN 108177724A CN 201810024659 A CN201810024659 A CN 201810024659A CN 108177724 A CN108177724 A CN 108177724A
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- plate
- stabilizing cavity
- pressure stabilizing
- side plate
- cover board
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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
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
- B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
- B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
- B63B2001/387—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes using means for producing a film of air or air bubbles over at least a significant portion of the hull surface
-
- 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
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The present invention relates to a kind of voltage stabilizing cavity configurations and installation method for resistance reduction by air cavity technology, for the mounting structure of resistance reduction by air cavity device aboard ship, belong to the application category of resistance reduction by air cavity technology.The production method is on the basis of using hull bottom structure, other parts of pressure stabilizing cavity are welded on bottom structure, main jet tracheae is connected at the top of pressure stabilizing cavity, bubble is flowed out using Bottom Plate in bottom, the air cavity of the watertight of an independent closing is formed, makes construction technology simple, jet effect promoting, energy consumption is saved, reduces vessel operating cost.Stablize gas-bearing formation reduction frictional resistance to being formed for the voltage stabilizing cavity configuration of resistance reduction by air cavity technology, the jet quality and jet efficiency for improving resistance reduction by air cavity device have remarkable effect, for promoting the integral level of resistance reduction by air cavity technology, reduce the operation costs of ship, the economic benefit of ship is improved, the engineer application of shipbuilding industry new technology is pushed to be of great significance.
Description
Technical field
The present invention relates to a kind of voltage stabilizing cavity configuration and installation method for resistance reduction by air cavity technology, for resistance reduction by air cavity device
Gas ejecting system mounting structure aboard ship, belong to the application category of resistance reduction by air cavity technology.
Background technology
Gas-bearing formation is formed to reduce the frictional resistance of hull surface in hull surface using hull bottom gas jet technique, is the current country
The new technology applied in terms of external ship energy saving emission reduction.However, currently for the jet generally use two ways of hull bottom, when
Multiple hole connection direct jets of air jet pipe are alow set, second is that alow welding jet box on outside plate, is flowed into and sprayed by air jet pipe
Gas box is flowed out again by Bottom Plate trepanning.Both the above jet mode is unstable there are gas flow, and the Air Bubble Size of ejection is not
Phenomena such as uniform, causes jet effect undesirable, reduces the utilization rate of bubble, it is difficult to reach expected drag-reduction effect.Pass through
It is alow internal, and the structure using hull in itself, pressure stabilizing cavity is made, the bubble through pressure stabilizing cavity outflow hull bottom surface has equal
Even, stable, the features such as bubble utilization rate is high, and voltage stabilizing cavity configuration has structure construction simple, detachably, facilitates repair, can have
Effect solves the problems, such as that current gas jet technique exists, and makes the bubble layer that the bubble formation that hull bottom surface is flowed out is uniform and stable.Therefore, should
Bubble utilization rate can be improved using voltage stabilizing cavity configuration with the ship of resistance reduction by air cavity technology, hull surface frictional resistance is reduced, reach
Energy-saving and emission-reduction and environment protection requirement.
Invention content
It is an object of the invention to overcome the shortage of prior art, a kind of pressure stabilizing cavity knot for resistance reduction by air cavity technology is provided
Configuration formula and installation method.On the basis of using hull bottom structure, other parts of pressure stabilizing cavity are welded on bottom structure
On, main jet tracheae is connected at the top of pressure stabilizing cavity, bubble is flowed out in bottom using Bottom Plate, forms the water of an independent closing
Close air cavity makes construction technology simple, jet effect promoting, saves energy consumption, reduces vessel operating cost.
The technical solution adopted by the present invention is：A kind of pressure stabilizing cavity structure type and installation side for resistance reduction by air cavity technology
Method specifically includes top plate, cover board, seat ring, fastener, partition board, uniform air jet system, side plate, bottom stringers, hull bottom fumarole, ship
Bottom plate.Its connection relation is：The bottom plate of pressure stabilizing cavity utilizes floor, and alow installation side plate on plate, makes side plate be enclosed with bottom stringers
Quadrangularly installs uniform air jet system in the middle part of side plate and bottom stringers, and top plate and cover board are installed at the top of side plate and bottom stringers,
Top plate and cover board are fixed into a watertight, the space closed with fastener.
It is characterized in that：
The pressure stabilizing cavity includes top plate, cover board, seat ring, fastener, partition board, uniform air jet system, side plate, bottom stringers, ship
Bottom fumarole, floor.Bottom stringers and floor are a parts for Ship Structure, and bottom stringers and side plate are vertically welded in floor
Inner surface simultaneously surrounds tetrahedron, and partition board level is welded on the centre position of side plate and bottom stringers inner surface, uniform air jet system peace
Mounted in partition board top edge, for roof water flat welded at the top of the centre of bottom stringers and side plate, seat ring is welded on top plate top edge, cover board
It is connect mounted on seat ring top edge fastener with seat ring；The closing impaled above and structure form pressure stabilizing cavity.
The top plate shape is band steel pattern, positioned at the top of pressure stabilizing cavity, is welded on the top of side plate and bottom stringers middle part,
To support seat ring and cover board；
The cover board is the steel plate of rectangle pattern, and surrounding is evenly arranged bolt hole, pad is fixed on fasteners such as bolts
On circle, mounted on the most upper limb of pressure stabilizing cavity, cover plate central position opens circular hole and is connected with air inlet pipe, and gas passes through the circle on cover board
Hole enters pressure stabilizing cavity；
The seat ring is that have certain thickness section for rectangular steel plate, and size is determined according to top plate size, week
It encloses and is evenly arranged bolt hole, the position of bolt hole is corresponding with the bolt hole on cover board, and between top plate and cover board, connection is solid
Determine the part of cover board.
The fastener includes bolt, nut and rubber washer, for connecting fixed cover board and seat ring, to ensure cover board
Watertightness.
The partition board is that shape is band steel pattern, positioned at the centre of pressure stabilizing cavity height and position, is welded on side plate and bottom stringers
On, for fixing uniform air jet system.
Pressure stabilizing cavity is divided into two parts up and down, mounted on partition board upper limb, passes through uniform jet by the uniform air jet system
Device make into pressure stabilizing cavity gas reach pressure stabilizing cavity bottom when evenly.
The side plate is vertically welded on Bottom Plate, and four sides for surrounding pressure stabilizing cavity, ruler are connect with bottom stringers
It is very little to be determined according to bottom structure feature and jet amount demand, it is an important factor for determining voltage stabilizing chamber size.
The bottom stringers is a part for hull bottom structure, along captain's genesis analysis, to separate the plate in hull bottom cabin.
The hull bottom fumarole is alow in the pressure stabilizing cavity on plate, is evenly arranged a certain number of trepannings, specific trepanning
Size and number are determined by spray air volume calculation.
The floor is a part for bottom structure, is the general designation of bottom of ship shell.
The installation method of pressure stabilizing cavity：
The first step：Blanking and after getting out all parts of pressure stabilizing cavity, the part processed to needs is processed, including looking for
Flat, trepanning；
Second step：The location and installation partition board on side plate and bottom stringers；
Third walks：After the completion of bottom of ship structure building, side plate installation position line is alow drawn at the reserved location of plate,
Erecting and welding side plate；
4th step：Fixed uniform air jet system is installed on partition board；
5th step：With the corresponding position welding top plate of bottom stringers at the top of side plate, make top plate plant tilting guarantee horizontal, and pushing up
Plate upper mounting seat circle；
6th step：Cover board is positioned with seat ring, is then installed and fixed with fastener.
This completes the overall processes in pressure stabilizing cavity constitutional detail processing and installation to hull.
The beneficial effects of the invention are as follows：
1st, the present invention introduces air into hull bottom, alow surface forms air water by alow setting detachable pressure stabilizing cavity
The two phase flow of mixing can significantly reduce ship resistance from the angle for reducing liquid viscosity coefficient to reduce the frictional resistance of hull
Power reduces fuel consumption, improves ship speed.
2nd, the design form of pressure stabilizing cavity can effectively prevent bubble and transversely escape, and it is uneven to avoid conventional jet mode outlet
The even interference brought to gas-bearing formation, deck design be detachable pattern, facilitate repair and can regular dredging.
3rd, the technology has broken the mindset of conventional power-saving technology, opens the new Research approach of field of energy-saving technology.
4th, the described pressure stabilizing cavity of the invention stablizes gas-bearing formation reduction frictional resistance to being formed, and improves the spray of resistance reduction by air cavity device
Makings amount and jet efficiency have remarkable effect, breach the core technology of hull bottom generation efficient stable gas-bearing formation, are resistance reduction by air cavity phase
It closes corollary equipment standardized production and provides technical foundation, improve the integral level of resistance reduction by air cavity technology, reduce the battalion of ship
Cost is transported, the economic benefit of ship is improved, accelerates the process that China is applied in resistance reduction by air cavity technology reality ship, to pushing ship row
The application of industry new technology, leads market trend to be of great significance.
Description of the drawings
The installation positioning figure of Fig. 1 pressure stabilizing cavities
Fig. 2 pressure stabilizing cavity profilographs
Fig. 3 pressure stabilizing cavity drawings in side sectional elevation
The node diagram of Fig. 4 pressure stabilizing cavities
The fumarole schematic diagram of Fig. 5 floors
Specific embodiment
The present invention is described further below in conjunction with the accompanying drawings.
The present invention is as shown in Fig. 1,2,3,4,5, a kind of voltage stabilizing cavity configuration and its installation method for resistance reduction by air cavity technology,
Specifically include top plate 1, cover board 2, seat ring 3, fastener 4, partition board 5, uniform air jet system 6, side plate 7, bottom stringers 8, hull bottom jet
Hole 9, floor 10.Its connection relation is：The bottom plate of pressure stabilizing cavity 11 utilizes floor 10, and alow installation side plate 7 on plate 10, makes
Side plate 7 surrounds quadrangle with bottom stringers 8, installs uniform air jet system 6 in side plate 7 and 8 middle part of bottom stringers, is indulged in side plate 7 and bottom
Surely top plate 1 and cover board 2 are fixed into a watertight, the space closed, i.e., by 8 top installation top plate 1 of purlin and cover board 2 with fastener 4
Press chamber 11；
It is characterized in that：
The pressure stabilizing cavity 11 as shown in Figure 2,3, including top plate 1, cover board 2, seat ring 3, fastener 4, partition board 5, uniform jet
Device 6, side plate 7, bottom stringers 8, hull bottom fumarole 9, floor 10；Bottom stringers 8 and floor 10 are a parts for Ship Structure,
Bottom stringers 8 and side plate 7 are vertically welded in 10 inner surface of floor and surround tetrahedron, and 5 level of partition board is welded on side plate 7 and bottom is indulged
The centre position of 8 inner surface of purlin, uniform air jet system 6 are mounted on 5 top edge of partition board, and 1 level of top plate is welded in bottom stringers 8
Between and the top of side plate 7, seat ring 3 be welded on 1 top edge of top plate, cover board 2 connects mounted on 3 top edge fastener 4 of seat ring with seat ring 3
It connects；The closing impaled above and structure form pressure stabilizing cavity 11；
As shown in Figure 2,4, shape is band steel pattern to the top plate 1, positioned at the top of pressure stabilizing cavity 11, is welded on side plate 7
Top and 8 middle part of bottom stringers, to support seat ring 3 and cover board 2；
The cover board 2 is the steel plate of rectangle pattern, surrounding is evenly arranged bolt hole, with bolt etc. as shown in Figure 2,3, 4
Fastener 4 is fixed on seat ring 3, and mounted on the most upper limb of pressure stabilizing cavity 11,2 center of cover board opens circular hole and is connected with air inlet pipe
It connects, gas enters pressure stabilizing cavity 11 by the circular hole on cover board 2；
The seat ring 3 is as shown in figure 4, be to have certain thickness section for rectangular steel plate, size is according to top plate
Size determines, is around evenly arranged bolt hole, and the position of bolt hole is corresponding with the bolt hole on cover board 2, mounted on top plate 1 and lid
Between plate 2, the part of fixed cover board 2 is connected；
The fastener 4 is as shown in figure 4, including bolt, nut and rubber washer etc., for connecting fixed cover board 2 and seat
Circle 3, to ensure the watertightness of cover board 2；
The partition board 5 positioned at the centre of pressure stabilizing cavity height and position, is welded on side as shown in Fig. 2, be shape be band steel pattern
On plate 7 and bottom stringers 8, for fixing uniform air jet system 6；
The uniform air jet system 6 is divided into two parts up and down as shown in Figure 2,3, by pressure stabilizing cavity, on partition board 5
Edge, by uniform air jet system 6 make into pressure stabilizing cavity gas reach pressure stabilizing cavity bottom when evenly.
The side plate 7 is to be vertically welded on floor 10, is connect with bottom stringers 8 and surround pressure stabilizing cavity as shown in Fig. 1,4
Four sides, size are determined according to bottom structure feature and jet amount demand, are an important factor for determining voltage stabilizing chamber size；
The bottom stringers 8 is a part for hull bottom structure as shown in Figure 1, 2, 3, along captain's genesis analysis, to separate
The plate in hull bottom cabin；
The hull bottom fumarole 9 is alow in the pressure stabilizing cavity on plate 10, is evenly arranged certain amount as shown in Fig. 3,5
Trepanning, specific bore size and quantity are determined by spray air volume calculation；
The floor 10 is a part for bottom structure as shown in Fig. 2,3,4,5, is the general designation of bottom of ship shell.
The installation method of pressure stabilizing cavity：
The first step：Blanking and after getting out all parts of pressure stabilizing cavity, the part processed to needs is processed, including looking for
Flat, trepanning；
Second step：The location and installation partition board 5 on side plate 7 and bottom stringers 8；
Third walks：After the completion of bottom of ship structure building, the installation positioning of side plate 7 is alow drawn at the reserved location of plate 10
Line, erecting and welding side plate 7；
4th step：Fixed uniform air jet system 6 is installed on partition board 5；
5th step：At 7 top of side plate and the corresponding position welding top plate 1 of bottom stringers 8, make 1 plane guarantee of top plate horizontal, and
In 1 upper mounting seat circle 3 of top plate；
6th step：Cover board 2 is positioned with seat ring 3, is then installed and fixed with fastener 4.
This completes the overall processes in pressure stabilizing cavity constitutional detail processing and installation to hull.
Claims (2)
1. a kind of voltage stabilizing cavity configuration and its installation method for resistance reduction by air cavity technology specifically includes top plate (1), cover board (2), seat
Enclose (3), fastener (4), partition board (5), uniform air jet system (6), side plate (7), bottom stringers (8), hull bottom fumarole (9), hull bottom
Plate (10).Its connection relation is：The bottom plate of pressure stabilizing cavity (11) utilizes floor (10), alow installation side plate (7) on plate (10),
Side plate (7) is made to surround quadrangle with bottom stringers (8), uniform air jet system (6) is installed in the middle part of side plate (7) and bottom stringers (8),
Installation top plate (1) and cover board (2) at the top of side plate (7) and bottom stringers (8), it is with fastener (4) that top plate (1) and cover board (2) is fixed
Into a watertight, closing and space, i.e. pressure stabilizing cavity (11)；The pressure stabilizing cavity (11) including top plate (1), cover board (2), seat ring (3),
Fastener (4), partition board (5), uniform air jet system (6), side plate (7), bottom stringers (8), hull bottom fumarole (9), floor (10)；
Bottom stringers (8) and floor (10) are a parts for Ship Structure, and bottom stringers (8) and side plate (7) are vertically welded in floor
(10) inner surface and tetrahedron is surrounded, partition board (5) level is welded on the centre position of side plate (7) and bottom stringers (8) inner surface,
For even air jet system (6) mounted on partition board (5) top edge, top plate (1) level is welded on the centre of bottom stringers (8) and side plate (7) top
Portion, seat ring (3) are welded on top plate (1) top edge, and cover board (2) is mounted on seat ring (3) top edge fastener (4) and seat ring (3)
Connection；The closing impaled above and structure form pressure stabilizing cavity (11)；Top plate (1) shape is band steel pattern, positioned at pressure stabilizing cavity
(11) top is welded on the top of side plate (7) and bottom stringers (8) middle part, to support seat ring (3) and cover board (2)；The lid
Plate (2) is the steel plate of rectangle pattern, and surrounding is evenly arranged bolt hole, is fixed on seat ring (3) with the fasteners such as bolt (4),
Mounted on the most upper limb of pressure stabilizing cavity (11), cover board (2) center opens circular hole and is connected with air inlet pipe, and gas passes through cover board (2)
On circular hole enter pressure stabilizing cavity (11)；The seat ring (3) is that have certain thickness section for rectangular steel plate, size root
It is determined according to top plate size, is around evenly arranged bolt hole, the position of bolt hole is corresponding with the bolt hole on cover board (2), is mounted on
Between top plate (1) and cover board (2), the part of fixed cover board (2) is connected；The fastener (4) includes bolt, nut and rubber pad
Circle etc., for connecting fixed cover board (2) and seat ring (3), to ensure the watertightness of cover board (2)；It is flat that the partition board (5), which is shape,
Steel type formula positioned at the centre of pressure stabilizing cavity height and position, is welded on side plate (7) and bottom stringers (8), for fixing uniform jet dress
It puts (6)；Pressure stabilizing cavity is divided into two parts up and down, mounted on partition board (5) upper limb, by uniform by the uniform air jet system (6)
Air jet system (6) make into pressure stabilizing cavity gas reach pressure stabilizing cavity bottom when evenly；The side plate (7) is to be vertically welded in ship
On bottom plate (10), four sides for surrounding pressure stabilizing cavity are connect with bottom stringers (8), size is according to bottom structure feature and jet amount
Demand determines, is an important factor for determining voltage stabilizing chamber size；The bottom stringers (8) is a part for hull bottom structure, along ship
Long genesis analysis, to separate the plate in hull bottom cabin；The hull bottom fumarole (9) is alow in the pressure stabilizing cavity on plate (10),
A certain number of trepannings are evenly arranged, specific bore size and quantity are determined by spray air volume calculation；The floor (10) is ship
A part for bottom structure is the general designation of bottom of ship shell.
2. a kind of voltage stabilizing cavity configuration and its installation method for resistance reduction by air cavity technology according to claim 1, it is characterized in that：
The first step：Blanking and after getting out all parts of pressure stabilizing cavity (11), the part processed to needs is processed, including it is levelling,
Trepanning；Second step：The location and installation partition board (5) on side plate (7) and bottom stringers (8)；Third walks：It is complete in bottom of ship structure building
Cheng Hou alow draws side plate (7) installation position line, erecting and welding side plate (7) at the reserved location of plate (10)；4th step：Every
Fixed uniform air jet system (6) is installed on plate (5)；5th step：It is welded at the top of side plate (7) with the corresponding position of bottom stringers (8)
Top plate (1) ensures top plate (1) plane horizontal, and in top plate (1) upper mounting seat circle (3)；6th step：Cover board (2) and seat ring
(3) it positions, is then installed and fixed with fastener (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024659.9A CN108177724A (en) | 2018-01-12 | 2018-01-12 | A kind of voltage stabilizing cavity configuration and installation method for resistance reduction by air cavity technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024659.9A CN108177724A (en) | 2018-01-12 | 2018-01-12 | A kind of voltage stabilizing cavity configuration and installation method for resistance reduction by air cavity technology |
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| CN108177724A true CN108177724A (en) | 2018-06-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111186527A (en) * | 2020-01-15 | 2020-05-22 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Marine gas layer resistance reduction energy-saving device |
| CN112109843A (en) * | 2020-09-30 | 2020-12-22 | 苏州静声泰科技有限公司 | Dynamic resistance reducing device |
| CN112793709A (en) * | 2020-12-28 | 2021-05-14 | 中船重工（上海）节能技术发展有限公司 | Air injection structure of air layer resistance reducing device, ship air layer resistance reducing system and air layer resistance reducing ship |
| CN113788102A (en) * | 2021-10-19 | 2021-12-14 | 中船重工（上海）节能技术发展有限公司 | Voltage stabilization cavity structure, gas layer resistance reduction system and ship |
| WO2024007442A1 (en) * | 2022-07-08 | 2024-01-11 | 江苏科技大学 | Ventilation-based drag reduction device and marine ventilation-based drag reduction system comprising same |
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| CN112793709A (en) * | 2020-12-28 | 2021-05-14 | 中船重工（上海）节能技术发展有限公司 | Air injection structure of air layer resistance reducing device, ship air layer resistance reducing system and air layer resistance reducing ship |
| CN113788102A (en) * | 2021-10-19 | 2021-12-14 | 中船重工（上海）节能技术发展有限公司 | Voltage stabilization cavity structure, gas layer resistance reduction system and ship |
| WO2024007442A1 (en) * | 2022-07-08 | 2024-01-11 | 江苏科技大学 | Ventilation-based drag reduction device and marine ventilation-based drag reduction system comprising same |
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