CN203946265U - A kind of efficient ocean fishing vessel energy saver - Google Patents
A kind of efficient ocean fishing vessel energy saver Download PDFInfo
- Publication number
- CN203946265U CN203946265U CN201420229189.7U CN201420229189U CN203946265U CN 203946265 U CN203946265 U CN 203946265U CN 201420229189 U CN201420229189 U CN 201420229189U CN 203946265 U CN203946265 U CN 203946265U
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- CN
- China
- Prior art keywords
- prewhirling
- flow
- duct wall
- pressurizing duct
- flow deflectors
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 9
- 241001672694 Citrus reticulata Species 0.000 claims description 21
- 239000002002 slurry Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000000295 fuel oil Substances 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010762 marine fuel oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model discloses a kind of efficient ocean fishing vessel energy saver, be arranged on stern, screw propeller the place ahead, slurry axle top, comprise left pressurizing duct wall, right pressurizing duct wall, central welding steel and six flow deflectors of prewhirling, left pressurizing duct wall and right pressurizing duct wall are the little uncovered circular arc in the large rear end of front end, the radius of left pressurizing duct wall is slightly less than the radius of right pressurizing duct wall, left and right pressurizing duct wall is integrally welded, weld with the central welding steel as center shaft one end of six flow deflectors of prewhirling, and the other end is welded on the inwall of left and right pressurizing duct wall.The utility model can produce additional thrust to screw propeller, makes the wake above the screw propeller rotating more evenly strong, and can effectively improve boattail flow separation; Arranging of six flow deflectors of prewhirling can effectively produce preswirl, increases the thrust of screw propeller, improves the propulsion coefficient of screw propeller; The utility model low cost of manufacture, saves fuel oil respond well, has good economy.
Description
Technical field
The utility model relates to a kind of fishing boat energy saver, relates in particular to a kind of efficient ocean fishing vessel energy saver.
Background technology
Rising along with international marine fuel oil price, and the new ship energy-saving efficiency index E EDI's of International Maritime Organization (IMO) is formally effective, the new shipbuilding of China, and in obsolete vessel transformation, the attached body of applicating energy-saving is more and more general, there is a collection of preposition conduit, the attached body device of the ship energy savings such as guide wheel of prewhirling, but these energy savers, possible in theory, but in real ship application, although improved the flow field before and after screw propeller, but can not obviously promote the propulsion coefficient of screw propeller, due to the consideration of having ignored propeller propulsive efficiency, cause hull propulsion coefficient obviously not promoted.
Utility model content
The purpose of this utility model is to overcome defect of the prior art and deficiency, a kind of efficient ocean fishing vessel energy saver is provided, the energy-conservation wake compensating duct of prewhirling of this fishing boat is by self distinctive six flow deflector of prewhirling, and left-right asymmetry pressurizing duct wall, fishing boat screw propeller flow field around can be effectively improved, fishing boat propeller propulsive efficiency can be significantly promoted again.
For addressing the above problem, the technical scheme that the utility model adopts is: a kind of efficient ocean fishing vessel energy saver, be arranged on stern, screw propeller the place ahead, slurry axle top, comprise left pressurizing duct wall, right pressurizing duct wall, central authorities' welding steel and six flow deflectors of prewhirling, left pressurizing duct wall and right pressurizing duct wall are the little uncovered circular arc in the large rear end of front end, the radius of left pressurizing duct wall is slightly less than the radius of right pressurizing duct wall, left, right pressurizing duct wall is integrally welded, weld with the central welding steel as center shaft one end of six flow deflectors of prewhirling, the other end is welded on a left side, on the inwall of right pressurizing duct wall.
Aforesaid a kind of efficient ocean fishing vessel energy saver, wherein said six flow deflectors of prewhirling comprise flow deflector of prewhirling, No. two flow deflectors of prewhirling, No. three flow deflectors of prewhirling, No. four flow deflectors of prewhirling, prewhirl for No. five flow deflector and No. six flow deflectors of prewhirling, flow deflector of prewhirling, prewhirl for No. two flow deflector and No. three flow deflectors of prewhirling are welded on left pressurizing duct wall, and No. four flow deflectors of prewhirling, prewhirl for No. five flow deflector and No. six flow deflectors of prewhirling are welded on right pressurizing duct wall.
Compared with prior art, the beneficial effects of the utility model are: the diameter setting that left pressurizing duct wall and right pressurizing duct wall diminish from front end to rear end gradually along captain's direction can produce additional thrust, its both wakes above front end becomes a mandarin the screw propeller that the different diameter setting in end place can make rotating is more evenly strong, and can effectively improve boattail flow separation; Arranging of six flow deflectors of prewhirling can effectively produce preswirl, increases the thrust of screw propeller, improves the propulsion coefficient 3% of screw propeller; The utility model low cost of manufacture, saves fuel oil respond well, has good economy, is easy to be accepted by fisherman and shipbuilding yard.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is front elevation of the present utility model;
Fig. 3 is left view of the present utility model;
The 1-flow deflector 2-flow deflector 3-flow deflector 4-flow deflector 5-flow deflector 6-right pressurizing duct Bi9-of the left pressurizing duct wall of the flow deflector 7-8-center welding steel of prewhirling for No. six of prewhirling for No. five of prewhirling for No. tetra-of prewhirling for No. tri-of prewhirling for No. bis-of prewhirling for No. in above-mentioned accompanying drawing
The specific embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is further described.
As shown in Figure 1, a kind of efficient ocean fishing vessel energy saver, comprise left pressurizing duct wall 7, right pressurizing duct wall 8, central welding steel 9 and six flow deflectors of prewhirling, left pressurizing duct wall 7 and right pressurizing duct wall 8 are the little uncovered circular arc in the large rear end of front end, the radius of left pressurizing duct wall 7 is slightly less than the radius of right pressurizing duct wall 8, left and right pressurizing duct wall is integrally welded, weld with the central welding steel 9 as center shaft one end of six flow deflectors of prewhirling, and the other end is welded on the inwall of left and right pressurizing duct wall.
As shown in Figure 1, a kind of efficient ocean fishing vessel energy saver, wherein said six flow deflectors of prewhirling comprise the flow deflector 1 of prewhirling for No., the flow deflector 2 of prewhirling for No. two, the flow deflector 3 of prewhirling for No. three, the flow deflector 4 of prewhirling for No. four, No. five prewhirl flow deflector 5 and the flow deflectors 6 of prewhirling for No. six, prewhirl for No. one flow deflector 1, prewhirl for No. two flow deflector 2 and the flow deflector 3 of prewhirling for No. three is welded on left pressurizing duct wall 7, and the flow deflector 4 of prewhirling for No. four, prewhirl for No. five flow deflector 5 and the flow deflector 6 of prewhirling for No. six are welded on right pressurizing duct wall 8.
As shown in Figure 3, the energy-conservation wake compensating duct of prewhirling of this fishing boat is installed on stern, screw propeller the place ahead, and slurry axle top, the front end of large mouthful is the end that becomes a mandarin, and the rear end of osculum is for going out stream end, and the length of conduit is L, and propeller radius is R, L is set to 0.75～0.85R conventionally.
As shown in Figure 3, the front end of the pressurizing duct outer wall consisting of left pressurizing duct wall 7 and right pressurizing duct wall 8 end opening that becomes a mandarin is large, it is little that rear end goes out to flow end opening, the bus of pressurizing duct outer wall and the angle theta of exit end face are 100 °, stream is used in this design can produce extra additional thrust to screw propeller, strengthens hull efficiency.
As shown in Figure 2, left pressurizing duct wall 7 is generally got 0.3～0.45L at the radius R 1 that goes out stream end, right pressurizing duct wall 8 is generally got 0.45～0.55L at the radius R 2 that goes out stream end, the center of circle of right pressurizing duct wall 8 is positioned at the just right 0.2R1 place, the center of circle of left pressurizing duct wall 7, left pressurizing duct wall 7 is going out the different radial design of stream end from right pressurizing duct wall 8, can make flow field workload in the different propeller blade surface of curvature, and can effectively improve stern flow separation.
As shown in Figure 2, the angle α 1 of flow deflector 1 and the flow deflector 2 of prewhirling for No. two of prewhirling for No. one is 60 °, the angle α 2 of flow deflector 2 and the flow deflector 3 of prewhirling for No. three of prewhirling for No. two is 60 °, the angle α 3 of flow deflector 3 and the flow deflector 4 of prewhirling for No. four of prewhirling for No. three is 60 °, the angle α 4 of flow deflector 4 and the flow deflector 5 of prewhirling for No. five of prewhirling for No. four is 60 °, the angle α 5 of flow deflector 5 and the flow deflector 6 of prewhirling for No. six of prewhirling for No. five is 60 °, the angle α 6 of flow deflector 6 and the flow deflector 1 of prewhirling for No. of prewhirling for No. six is 60 °, the flow deflector 3 of prewhirling for No. three overlaps with the line of centers of left pressurizing duct wall 7 at the end that becomes a mandarin with the edge of No. six flow deflectors 6 of prewhirling.
As shown in Figure 1, six flow deflectors of prewhirling are curved surface stainless steel materials, and carry out rounding processing going out stream end and the end margin that becomes a mandarin.
As shown in Figure 2, the flow deflector 1 of prewhirling for No. one end margin that becomes a mandarin is 3.95 ° at the angle β 1 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, the flow deflector 2 of prewhirling for No. two end margin that becomes a mandarin is 3.95 ° at the angle β 2 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, the flow deflector 3 of prewhirling for No. three end margin that becomes a mandarin is 3.95 ° at the angle β 3 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, the flow deflector 4 of prewhirling for No. four end margin that becomes a mandarin is 3.95 ° at the angle β 4 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, the flow deflector 5 of prewhirling for No. five end margin that becomes a mandarin is 3.95 ° at the angle β 5 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, the flow deflector 6 of prewhirling for No. six end margin that becomes a mandarin is 3.95 ° at the angle β 6 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, such design can effectively produce preswirl, reduce the loss of propeller race rotating energy, and make flow field more even.
An efficient ocean fishing vessel energy saver, wherein said left pressurizing duct wall 7 is stainless steel materials with right pressurizing duct wall 8.
The energy-conservation wake compensating duct of prewhirling of this fishing boat is installed on stern, screw propeller the place ahead, slurry axle top, when fishing boat travels, current enter conduit by the end that becomes a mandarin, the diameter setting that left pressurizing duct wall and right pressurizing duct wall diminish from front end to rear end gradually along captain's direction can make the acceleration that becomes a mandarin of the screw propeller first half, produce additional thrust, and reduce screw propeller first half wake peak, arranging of six flow deflectors of prewhirling can make current generation prewhirl, make screw propeller to enter flow field more even, reduce stern degradation of energy, left pressurizing duct wall is going out to flow to hold different size settings can use stream at the more favourable application force of the surface of screw propeller generation from right pressurizing duct wall, can effectively reduce screw propeller torsion.
The version of the energy-conservation wake compensating duct of prewhirling of this fishing boat is complete, and structural strength is high, than the attached body device of existing ship energy saving, can effectively reduce vibration and noise, is conducive to fish production operation.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. an efficient ocean fishing vessel energy saver, comprise left pressurizing duct wall (7), right pressurizing duct wall (8), central welding steel (9) and six flow deflectors of prewhirling, it is characterized in that, described left pressurizing duct wall (7) and right pressurizing duct wall (8) are the little uncovered circular arc in the large rear end of front end, the radius of left pressurizing duct wall (7) is slightly less than the radius of right pressurizing duct wall (8), left and right pressurizing duct wall is integrally welded, weld with the central welding steel (9) as center shaft one end of six flow deflectors of prewhirling, and the other end is welded on the inwall of left and right pressurizing duct wall.
2. a kind of efficient ocean fishing vessel energy saver according to claim 1, it is characterized in that, six described flow deflectors of prewhirling comprise the flow deflector of prewhirling (1), No. two flow deflectors of prewhirling (2), No. three flow deflectors of prewhirling (3), No. four flow deflectors of prewhirling (4), No. five flow deflectors of prewhirling (5) and No. six flow deflectors of prewhirling (6), the flow deflector of prewhirling (1), No. two flow deflectors of prewhirling (2) are welded on left pressurizing duct wall (7) with No. three flow deflectors of prewhirling (3), No. four flow deflectors of prewhirling (4), No. five flow deflectors of prewhirling (5) are welded on right pressurizing duct wall (8) with No. six flow deflectors of prewhirling (6).
3. a kind of efficient ocean fishing vessel energy saver according to claim 1, is characterized in that, the length of conduit is L, and propeller radius is R, and L is set to 0.75～0.85R.
4. a kind of efficient ocean fishing vessel energy saver according to claim 1, it is characterized in that, the front end of the pressurizing duct outer wall consisting of left pressurizing duct wall (7) and right pressurizing duct wall (8) end opening that becomes a mandarin is large, it is little that rear end goes out to flow end opening, and the bus of pressurizing duct outer wall and the angle theta of exit end face are 100 °.
5. a kind of efficient ocean fishing vessel energy saver according to claim 1, it is characterized in that, left pressurizing duct wall (7) is 0.3～0.45L at the radius R 1 that goes out stream end, right pressurizing duct wall (8) is 0.45～0.55L at the radius R 2 that goes out stream end, and the center of circle of right pressurizing duct wall (8) is positioned at the just right 0.2R1 place, the center of circle of left pressurizing duct wall (7).
6. a kind of efficient ocean fishing vessel energy saver according to claim 2, it is characterized in that, the flow deflector of prewhirling (1) is 60 ° with the angle α 1 of No. two flow deflectors of prewhirling (2), No. two flow deflectors of prewhirling (2) are 60 ° with the angle α 2 of No. three flow deflectors of prewhirling (3), No. three flow deflectors of prewhirling (3) are 60 ° with the angle α 3 of No. four flow deflectors of prewhirling (4), No. four flow deflectors of prewhirling (4) are 60 ° with the angle α 4 of No. five flow deflectors of prewhirling (5), No. five flow deflectors of prewhirling (5) are 60 ° with the angle α 5 of No. six flow deflectors of prewhirling (6), No. six flow deflectors of prewhirling (6) are 60 ° with the angle α 6 of the flow deflector of prewhirling (1), No. three flow deflectors of prewhirling (3) overlap with the line of centers of left pressurizing duct wall (7) at the end that becomes a mandarin with the edge of No. six flow deflectors of prewhirling (6).
7. according to a kind of efficient ocean fishing vessel energy saver described in claim 2 or 6, it is characterized in that, the flow deflector of prewhirling (1) end margin that becomes a mandarin is 3.95 ° at the angle β 1 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, No. two flow deflectors of prewhirling (2) end margin that becomes a mandarin is 3.95 ° at the angle β 2 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, No. three flow deflectors of prewhirling (3) end margin that becomes a mandarin is 3.95 ° at the angle β 3 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, No. four flow deflectors of prewhirling (4) end margin that becomes a mandarin is 3.95 ° at the angle β 4 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, No. five flow deflectors of prewhirling (5) end margin that becomes a mandarin is 3.95 ° at the angle β 5 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin, No. six flow deflectors of prewhirling (6) end margin that becomes a mandarin is 3.95 ° at the angle β 6 that goes out to flow orthogonal projection line on end face and go out to flow with it end margin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229189.7U CN203946265U (en) | 2014-05-06 | 2014-05-06 | A kind of efficient ocean fishing vessel energy saver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229189.7U CN203946265U (en) | 2014-05-06 | 2014-05-06 | A kind of efficient ocean fishing vessel energy saver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203946265U true CN203946265U (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420229189.7U Expired - Fee Related CN203946265U (en) | 2014-05-06 | 2014-05-06 | A kind of efficient ocean fishing vessel energy saver |
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| Country | Link |
|---|---|
| CN (1) | CN203946265U (en) |
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2014
- 2014-05-06 CN CN201420229189.7U patent/CN203946265U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20160506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |