CN118144971A - Propeller device and ship - Google Patents
Propeller device and ship Download PDFInfo
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- CN118144971A CN118144971A CN202410486736.8A CN202410486736A CN118144971A CN 118144971 A CN118144971 A CN 118144971A CN 202410486736 A CN202410486736 A CN 202410486736A CN 118144971 A CN118144971 A CN 118144971A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 28
- 238000005265 energy consumption Methods 0.000 abstract description 27
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 20
- 239000000446 fuel Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation 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
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a propeller device and a ship, and relates to the technical field of ship manufacturing. The propeller device comprises a propeller body, wherein the propeller body is used for being installed at the stern end part of a ship. The propeller device further comprises an energy-saving assembly, wherein the energy-saving assembly is connected to the stern of the ship and is arranged close to the propeller body in the length direction of the ship. The energy-saving assembly comprises a plurality of blades, the blades are arranged on the stern of the ship in a surrounding mode, the roots of the blades are fixedly arranged on the surface of the stern, the blades extend outwards on the surface of the stern, the tail ends of the blades are different from the stern end of the ship at least in the distance of the horizontal direction, the blades are arranged in a staggered mode in the length direction of the ship, water flow in front of the propeller body is deflected, the water flow direction beneficial to the propeller body is generated, the propeller body obtains larger thrust under the same energy consumption, the propulsion efficiency is improved, and the energy consumption and the emission of ship operation are reduced.
Description
Technical Field
The invention relates to the technical field of ship manufacturing, in particular to a propeller device and a ship.
Background
The propeller of the ship is an important propulsion device of the ship, and converts the rotating speed of an engine into thrust to drive the ship to advance in water. The propeller is usually mounted at the stern end of the vessel in order to throw the water flow out quickly and reduce friction.
In the shipping industry, fuel cost is one of main operation cost, because different ships have different linear designs, when the screw propeller is installed at the stern end of a specific ship, the screw propeller is influenced by shielding of a ship body and the like, the water flow condition in front of the screw propeller is poor, so that the screw propeller is required to provide larger thrust for the operation of the ship, the consumed fuel quantity is higher, the energy consumption and emission of the ship are increased, and the current development trend of energy conservation and environmental protection is not met.
Disclosure of Invention
The invention aims to overcome the defects of poor water flow condition in front of a propeller and high energy consumption for ship operation in the prior art, and provides a propeller device and a ship.
The invention solves the technical problems by the following technical scheme:
The invention provides a propeller device, which comprises a propeller body, wherein the propeller body is used for being installed at the stern end part of a ship, and the propeller device also comprises an energy-saving assembly, wherein the energy-saving assembly is used for being connected to the stern of the ship and is arranged close to the propeller body in the length direction of the ship;
The energy-saving assembly comprises a plurality of blades, the blades are arranged on the stern of the ship in a surrounding mode, the roots of the blades are fixedly arranged on the surface of the stern, the blades extend outwards on the surface of the stern, and the tail ends of the blades and the stern end of the ship are different in distance at least in the horizontal direction, so that the blades are arranged in a staggered mode in the length direction of the ship.
In this scheme, the screw body is installed at the stern tip of boats and ships, throws out rivers fast, promotes boats and ships and advances in the aquatic to close on the screw body on the stern of boats and ships and set up energy-conserving subassembly, thereby improve the water flow environment in screw body the place ahead, reduce the energy loss of screw body, improve the propulsion efficiency of screw body. The energy-saving assembly comprises a plurality of blades, the blades extend outwards on the surface of the stern, the blades are arranged in a staggered mode on the length direction of the ship, so that water flow in front of the propeller body is deflected, the water flow direction beneficial to the propeller body is generated, the propeller body is further enabled to obtain larger thrust under the same energy consumption, the propulsion efficiency is improved, the energy consumption and the emission of the ship operation are reduced, the cost is reduced, and the pollution to the environment is also reduced.
Preferably, the cross-sectional shape of a plurality of said blades is an airfoil shape.
In this scheme, through all establishing the cross-sectional shape of a plurality of blades into the wing section shape to make the better realization of blade carry out the effect that flows to the direction of flow was adjusted, and then make the screw body obtain bigger thrust under the same energy consumption, promote propulsion efficiency, reduced the energy consumption and the emission of boats and ships operation, the cost is reduced has also reduced the pollution to the environment.
Preferably, the blades comprise first blades which are arranged at the left side of the stern of the ship, the number of the first blades is one or more, the first blades incline towards the left side of the ship, and an included angle A is formed between the first blades and the vertical axis of the ship, wherein the included angle A is more than or equal to-180 degrees and less than or equal to 0 degrees.
In the scheme, the number of the first blades is one or more, and the number of the first blades can be adjusted according to the line type of an actual ship body, so that the effect of the first blades on adjusting the flow direction of water flow is better exerted. The first blade inclines to the left side of boats and ships, through forming contained angle A between the vertical axis of first blade and boats and ships and setting up in specific scope, contained angle A's size can be adjusted according to actual hull's line type, has further promoted the effect that first blade adjusted the rivers flow direction, and then makes the screw body obtain bigger thrust under the same energy consumption, promotes propulsion efficiency.
Preferably, the horizontal distance between the tail end of the first blade and the stern end of the ship is L, wherein the diameter dimension of the propeller body is D, and L is more than or equal to 0 and less than or equal to 0.8D.
In this scheme, through setting up the tail end of first blade and the horizontal distance L of the stern tip of boats and ships in specific range, horizontal distance L's size can be adjusted according to the line type of actual hull, has further promoted the effect that first blade adjusted the rivers flow direction, and then makes the screw body obtain bigger thrust under the same energy consumption, promotes propulsion efficiency.
Preferably, the blades comprise second blades, the second blades are arranged on the right side of the stern of the ship, the number of the second blades is one or more, the second blades incline towards the right side of the ship, and an included angle A 'is formed between the second blades and the vertical axis of the ship, wherein the included angle A' is more than or equal to 0 degree and less than or equal to 180 degrees.
In this scheme, the quantity of second blade is one or more, and the quantity of second blade can be adjusted according to the line type of actual hull to the effect of second blade regulation rivers flow direction is played better. The second blade inclines to the right side of boats and ships, through forming contained angle A 'setting in the specific scope between the vertical axis of second blade and boats and ships, the size of contained angle A' can be adjusted according to the line type of actual hull, has further promoted the effect that the second blade adjusted the rivers flow direction, and then makes the screw body obtain bigger thrust under the same energy consumption, promotes propulsion efficiency.
Preferably, the horizontal distance between the tail end of the second blade and the stern end of the ship is L ', and the diameter dimension of the propeller body is D, wherein L' is more than or equal to 0 and less than or equal to 0.8D.
In this scheme, through setting up the tail end of second blade and the horizontal distance L 'of the stern tip of boats and ships in specific range, the size of horizontal distance L' can be adjusted according to the line type of actual hull, has further promoted the effect that the second blade adjusted the rivers flow direction, and then makes the screw body obtain bigger thrust under the same energy consumption, promotes propulsion efficiency.
Preferably, the extending direction of at least two of the blades is different from the vertical direction.
In this scheme, the extending direction of two at least blades is different with the contained angle of vertical direction, and the contained angle can be adjusted according to the line type of actual hull, has further promoted the effect that the blade adjusted the rivers flow direction, and then makes the screw body obtain bigger thrust under the same energy consumption, promotes propulsion efficiency.
Preferably, the extension length of the blade is R, and the diameter dimension of the propeller body is D, wherein R is more than or equal to 0.1D and less than or equal to 0.6D.
In this scheme, through setting up the extension length setting R of blade at specific within range, extension length R of blade can be adjusted according to the line type of actual hull, has further promoted the effect that the blade adjusted the rivers flow direction, and then makes the screw body obtain bigger thrust under the same energy consumption, promotes propulsion efficiency.
Preferably, the blade is welded to the stern of the vessel.
In this scheme, connect the blade in the afterbody of boats and ships through the welding to make the blade more firm with the connection of boats and ships 'stern, make energy-conserving assembly's life longer.
The invention also provides a ship comprising the propeller device.
In this solution the vessel comprises the same effects of the propeller arrangement described above.
The invention has the positive progress effects that:
The invention provides a propeller device and a ship, wherein the propeller device comprises a propeller body and an energy-saving assembly, the propeller body is arranged at the stern end part of the ship, water flow is rapidly thrown out, the ship is pushed to advance in the water, the energy-saving assembly is arranged on the stern of the ship close to the propeller body, the water flow environment in front of the propeller body is improved, the energy loss of the propeller body is reduced, and the propulsion efficiency of the propeller body is improved. The energy-saving assembly comprises a plurality of blades, the blades extend outwards on the surface of the stern, the blades are arranged in a staggered mode on the length direction of the ship, so that water flow in front of the propeller body is deflected, the water flow direction beneficial to the propeller body is generated, the propeller body is further enabled to obtain larger thrust under the same energy consumption, the propulsion efficiency is improved, the energy consumption and the emission of the ship operation are reduced, the cost is reduced, and the pollution to the environment is also reduced.
Drawings
Fig. 1 is a schematic perspective view of a propeller apparatus according to an embodiment of the present invention.
Fig. 2 is a left side view of a propeller device according to an embodiment of the present invention.
Fig. 3 is a right side view of a propeller device according to an embodiment of the present invention.
Fig. 4 is a front view of a propeller device according to an embodiment of the present invention.
FIG. 5 is a schematic view of rotational adjustment of a blade according to an embodiment of the present invention.
Description of the reference numerals
Stern shell 100
Propeller device 200
Propeller body 210
Energy saving assembly 300
Blade 310
First blade 311
Second blade 312
Left side 410 of stern
Right side 420 of stern
Vertical axis 500 of vessel
Length direction X of ship
Width direction Y of ship
Height direction Z of ship
Detailed Description
The invention is further illustrated by means of the following examples, which are not, however, intended to limit the scope of the invention.
The present embodiment provides a ship, which includes the propeller device 200, and by providing the propeller device 200, the propulsion efficiency of the ship is improved, the energy consumption and emission of the ship operation are reduced, the cost is reduced, and the pollution to the environment is also reduced. The test proves that the propeller device 200 has the energy-saving effect of 3-4%.
Fig. 1 shows an overall structure of a propeller device 200, in which a longitudinal direction X of a ship is directed from the bow to the stern, a width direction Y of the ship is directed from the middle to the right, and a height direction Z of the ship is directed from the bottom to the deck.
As shown in fig. 1 to 4, the propeller device 200 includes a propeller body 210, the propeller body 210 is configured to be mounted at a stern end of a ship, the propeller body 210 throws water flow out rapidly to push the ship to advance in the water, and the propeller device 200 further includes an energy-saving assembly 300, the energy-saving assembly 300 is configured to be connected to the stern of the ship and is disposed adjacent to the propeller body 210 in a length direction X of the ship, so as to improve a water flow environment in front of the propeller body 210, reduce energy loss of the propeller body 210, and improve propulsion efficiency of the propeller body 210.
The energy-saving assembly 300 comprises a plurality of blades 310, the blades 310 are arranged on the stern of the ship in a surrounding manner, the roots of the blades 310 are fixedly arranged on the surface of the stern, the blades 310 extend outwards on the surface of the stern, the tail ends of the blades 310 are different from the stern end of the ship at least in the distance of the horizontal direction, so that the blades 310 are arranged in a staggered manner in the length direction X of the ship, water flow in front of the propeller body 210 is deflected, the water flow direction favorable for the propeller body 210 is generated, the propeller body 210 obtains larger thrust under the same energy consumption, the propulsion efficiency is improved, the energy consumption and the emission of the ship operation are reduced, the cost is reduced, and the pollution to the environment is also reduced.
In this embodiment, the cross-sectional shapes of the plurality of blades 310 are all airfoil shapes, so that the blades 310 can better realize the effect of adjusting the flow direction of the water flow, and further the propeller body 210 can obtain larger thrust under the same energy consumption, so that the propulsion efficiency is improved, the energy consumption and the emission of the ship operation are reduced, the cost is reduced, and the pollution to the environment is also reduced. In other embodiments, one skilled in the art may select other suitable cross-sectional shapes depending on the particular vessel.
The blades 310 include first blades 311, the first blades 311 are arranged on the left side 410 of the stern of the ship, the number of the first blades 311 is one or more, and the number of the first blades 311 can be adjusted according to the line type of the actual ship body, so that the effect of the first blades 311 on adjusting the flow direction of water flow can be better exerted.
The first blades 311 are inclined to the left of the vessel, and an included angle A is formed between the first blades 311 and the vertical axis 500 of the vessel, wherein A is more than or equal to-180 degrees and less than or equal to 0 degrees. Through forming contained angle A between first blade 311 and the vertical axis 500 of boats and ships and setting up in the specific scope, contained angle A's size can be adjusted according to the line type of actual hull, has further promoted the effect that first blade 311 adjusted the rivers flow direction, and then makes screw body 210 obtain bigger thrust under the same energy consumption, promotes propulsion efficiency.
As shown in fig. 4, in the present embodiment, the number of the first blades 311 is 3. In other embodiments, the number of first blades 311 may vary from 1 to 6, and one skilled in the art may select other suitable numbers of first blades 311 for different boat forms.
As shown in fig. 4, in the present embodiment, the angles are positive clockwise and negative anticlockwise, the angles A1, a1= -92 degrees between the first blade 311 located at the leftmost side and the vertical axis 500 of the ship, the angles A2, a2= -50 degrees between the first blade 311 located at the middle and the vertical axis 500 of the ship, and the angles A3, a3= -20 degrees between the first blade 311 located at the rightmost side and the vertical axis 500 of the ship. In other embodiments, one skilled in the art can select the appropriate angle a size for a particular boat type.
The horizontal distance between the tail end of the first blade 311 and the stern end of the ship is L, and the diameter dimension of the propeller body 210 is D, wherein L is more than or equal to 0 and less than or equal to 0.8D. Through setting the horizontal distance L between the tail end of the first blade 311 and the stern end of the ship in a specific range, the horizontal distance L can be adjusted according to the line shape of the actual ship body, the effect of the first blade 311 on adjusting the flow direction of water flow is further improved, and further, the propeller body 210 obtains larger thrust under the same energy consumption, and the propulsion efficiency is improved.
As shown in fig. 2, in the present embodiment, the horizontal distance between the tail end of the first vane 311 located at the far left side and the stern end of the ship is L1, l1=0.22×d, the horizontal distance between the tail end of the first vane 311 located at the middle and the stern end of the ship is L2, l2=0.27×d, and the horizontal distance between the tail end of the first vane 311 located at the far right side and the stern end of the ship is l3.l3=0.32×d. In other embodiments, one skilled in the art may select the appropriate level distance L for a particular boat type.
The blades 310 include second blades 312, the second blades 312 being provided on the right side 420 of the stern of the vessel, the number of second blades 312 being one or more, so as to better function the second blades 312 to regulate the flow direction of the water flow.
The second blade 312 is inclined to the right of the vessel, the second blade 312 forming an angle A 'with the vertical axis 500 of the vessel, wherein A' is 0 DEG or more and 180 deg or less. Through forming contained angle A 'between second blade 312 and the vertical axis 500 of boats and ships and setting up in specific scope, the size of contained angle A' can be adjusted according to the line type of actual hull, has further promoted the effect that second blade 312 adjusted the rivers flow direction, and then makes screw body 210 obtain bigger thrust under the same energy consumption, promotes propulsion efficiency.
As shown in fig. 4, in the present embodiment, the number of the second blades 312 is 2. In other embodiments, the number of second blades 312 may vary from 1 to 6, and one skilled in the art may select other suitable numbers of second blades 312 for different boat types.
As shown in fig. 4, in the present embodiment, the angle between the second blade 312 on the left side and the vertical axis 500 of the ship is a4, a4=20 degrees, and the angle between the second blade 312 on the right side and the vertical axis 500 of the ship is a5, a5=50 degrees. In other embodiments, one skilled in the art can select the appropriate angle a' size for a particular boat type.
The horizontal distance between the tail end of the second blade 312 and the stern end of the ship is L ', and the diameter dimension of the propeller body 210 is D, wherein 0L' is 0.8D. Through setting the horizontal distance L 'between the tail end of the second blade 312 and the stern end of the ship within a specific range, the horizontal distance L' can be adjusted according to the line shape of the actual ship body, the effect of the second blade 312 in adjusting the flow direction of water flow is further improved, and further, the propeller body 210 obtains larger thrust under the same energy consumption, and the propulsion efficiency is improved.
As shown in fig. 3, in the present embodiment, the horizontal distance between the tail end of the second blade 312 located on the left side and the stern end of the ship is L4, l4=0.29×d, and the horizontal distance between the tail end of the second blade 312 located on the right side and the stern end of the ship is L5, l5=0.31×d. In other embodiments, one skilled in the art may select the appropriate level distance L' depending on the particular boat type.
The extending direction of at least two blades 310 is different from the vertical direction, the included angle can be adjusted according to the line type of the actual ship body, the effect of adjusting the flow direction of the water flow by the blades 310 is further improved, and further, the propeller body 210 obtains larger thrust under the same energy consumption, and the propulsion efficiency is improved.
As shown in fig. 5, the blade 310 can also rotate around its own axis relative to the stern housing 100 in the design and installation structure, the rotation angle is B, and the magnitude of the rotation angle B can be changed from 0 to 45, so that the deflection direction of the blade 310 on the stern housing 100 can better act on the water flow. At the left side 410 of the stern, the rotation angle of the leftmost first blade 311 around its own axis is B1, b1=5 degrees, the rotation angle of the middle first blade 311 around its own axis is B2, b2=0 degrees, and the rotation angle of the rightmost first blade 311 around its own axis is B3, b3=15 degrees. On the right side 420 of the stern, the second blade 312 on the left side rotates about its own axis by an angle B4, b4=20 degrees, and the second blade 312 on the right side rotates about its own axis by an angle B5, b5=25 degrees.
As shown in FIG. 4, the blades 310 have an extension length R and the propeller body 210 has a diameter dimension D, where 0.1 D.ltoreq.R.ltoreq.0.6D. Through setting the extension length R of the blade 310 within a specific range, the extension length R of the blade 310 can be adjusted according to the line shape of the actual ship body, so that the effect of the blade 310 in adjusting the flow direction of water flow is further improved, further, the propeller body 210 obtains larger thrust under the same energy consumption, and the propulsion efficiency is improved.
In this embodiment, the extension length R of the vane 310=0.44×d. In other embodiments, one skilled in the art may also select other suitable blade 310 extension lengths depending on the particular line type of vessel.
The blades 310 are welded to the stern of the ship, thereby making the connection of the blades 310 to the stern of the ship more stable and making the life of the energy saving assembly 300 longer.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (10)
1. The propeller device comprises a propeller body, wherein the propeller body is used for being installed at the stern end part of a ship, and the propeller device is characterized by further comprising an energy-saving assembly, wherein the energy-saving assembly is used for being connected to the stern of the ship and is arranged close to the propeller body in the length direction of the ship;
The energy-saving assembly comprises a plurality of blades, the blades are arranged on the stern of the ship in a surrounding mode, the roots of the blades are fixedly arranged on the surface of the stern, the blades extend outwards on the surface of the stern, and the tail ends of the blades and the stern end of the ship are different in distance at least in the horizontal direction, so that the blades are arranged in a staggered mode in the length direction of the ship.
2. The propeller apparatus of claim 1, wherein the cross-sectional shape of a plurality of the blades is an airfoil shape.
3. The propeller arrangement of claim 1, wherein the blades comprise first blades, which are provided on the left side of the stern of the vessel, the number of first blades being one or more, which first blades are inclined to the left side of the vessel, the first blades forming an angle a with the vertical axis of the vessel, wherein-180 ° -a ∈ 0 °.
4. A propeller arrangement according to claim 3, wherein the horizontal distance of the trailing end of the first blade from the stern end of the vessel is L, wherein the diameter of the propeller body is D, wherein 0.ltoreq.l.ltoreq.0.8D.
5. A propeller arrangement according to claim 1 or 3, wherein the blades comprise second blades, which are provided on the right side of the stern of the vessel, the number of second blades being one or more, which second blades are inclined to the right side of the vessel, the second blades forming an angle a 'with the vertical axis of the vessel, wherein 0 ° -a' -180 °.
6. The propeller apparatus of claim 5, wherein the tail end of the second blade is horizontally spaced from the stern end of the vessel by a distance L ', and the propeller body has a diameter dimension D, wherein 0L' 0.8D.
7. The propeller arrangement of claim 1, wherein at least two of the blades extend at different angles to the vertical.
8. The propeller apparatus of claim 1, wherein the blades have a protrusion length R and the propeller body has a diameter dimension D, wherein 0.1 d.ltoreq.r.ltoreq.0.6D.
9. The propeller arrangement of claim 1, wherein the blades are welded to the stern of the vessel.
10. A vessel comprising a propeller arrangement according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410486736.8A CN118144971A (en) | 2024-04-23 | 2024-04-23 | Propeller device and ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410486736.8A CN118144971A (en) | 2024-04-23 | 2024-04-23 | Propeller device and ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118144971A true CN118144971A (en) | 2024-06-07 |
Family
ID=91298635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410486736.8A Pending CN118144971A (en) | 2024-04-23 | 2024-04-23 | Propeller device and ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118144971A (en) |
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2024
- 2024-04-23 CN CN202410486736.8A patent/CN118144971A/en active Pending
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