CN111559483A - Ship and propeller setting method - Google Patents
Ship and propeller setting method Download PDFInfo
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- CN111559483A CN111559483A CN202010482196.8A CN202010482196A CN111559483A CN 111559483 A CN111559483 A CN 111559483A CN 202010482196 A CN202010482196 A CN 202010482196A CN 111559483 A CN111559483 A CN 111559483A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000001914 filtration Methods 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 20
- 230000001737 promoting effect Effects 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
Abstract
The application provides a ship and a propeller setting method, wherein the ship comprises a ship body, when the ship body enters water, the bottom of the ship body is immersed in the water, a channel is arranged at the bottom of the ship body and used for setting the propeller, and an outlet of the channel is positioned at the tail part of the bottom of the ship body; the inner diameter of a channel between the propeller and the outlet is not larger than the positioning inner diameter, the diameter of the propeller is smaller than the positioning inner diameter, and the difference proportion between the diameter of the propeller and the positioning inner diameter is not larger than a preset difference proportion, wherein the positioning inner diameter represents the inner diameter of the channel where the propeller is arranged, and the preset difference proportion is between 0 and 0.3; when the propeller is arranged in the channel, the propeller pushes water in the channel to the outlet direction when rotating. Therefore, the divergence angle of the water flow pushed backwards during the operation of the propeller can be effectively reduced, the thrust generated by the water flow is close to the front and back directions, the utilization efficiency of energy is improved, and the effect of saving energy is achieved. Meanwhile, the stability of the ship body can be improved by water flow in the channel at the bottom of the ship body.
Description
Technical Field
The application relates to the technical field of ship propulsion, in particular to a ship and a propeller setting method.
Background
The propeller is arranged at the tail part outside the ship body, and when the propeller rotates, the propeller drives water flow to flow backwards so as to push the ship to operate. However, in such a system, the efficiency of energy utilization is not particularly preferable, and since a large amount of energy is consumed for the operation of the ship, it is necessary to further improve the efficiency of energy utilization in order to save energy.
Disclosure of Invention
An object of the embodiments of the present application is to provide a ship and a propeller installation method, so as to improve energy utilization efficiency and save energy.
In order to achieve the above object, embodiments of the present application are implemented as follows:
in a first aspect, an embodiment of the present application provides a ship, including a hull, where when the hull enters water, the bottom of the hull is submerged in the water, a channel is provided at the bottom of the hull for installing a propeller, and an outlet of the channel is located at the tail of the bottom of the hull; the inner diameter of a channel between the propeller and the outlet is not larger than a positioning inner diameter, the diameter of the propeller is smaller than the positioning inner diameter, and the difference ratio of the diameter of the propeller and the positioning inner diameter is not larger than a preset difference ratio, wherein the positioning inner diameter represents the inner diameter of the channel where the propeller is arranged, and the preset difference ratio is between 0 and 0.3; when the propeller is arranged in the channel, the propeller pushes water in the channel to the outlet direction when rotating.
In this application embodiment, through seting up the passageway in the hull bottom, set up the screw in the passageway, and, the internal diameter of passageway between screw and the export is not more than the location internal diameter, the diameter of screw is less than the location internal diameter, and, the diameter of screw and the difference proportion of location internal diameter do not exceed and preset difference proportion (can set for between 0 to 0.3), can effectively reduce the divergent angle when pushing rivers backward when the screw operation like this (the divergent angle is big more, energy loss is more serious), make the rivers that promote have very little divergent angle (the outdiffusion earage is less), make the thrust that rivers produced reverse around being close, more energy can be used for promoting boats and ships and move forward, improve the speed that rivers jetted backward, thereby promote the utilization efficiency of energy, thereby reach energy saving's effect. Meanwhile, the stability of the ship body can be improved by water flow in the channel at the bottom of the ship body.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the preset difference ratio is 0.05.
In this implementation, the preset difference proportion is set to be 0.05, so that on one hand, the divergence angle of water flow can be reduced as much as possible, the utilization rate of energy is improved, on the other hand, deformation caused by some influence factors can be considered, the condition that the propeller is directly attached to the channel to influence the operation of the propeller is avoided, and the reliability of the ship is improved.
With reference to the first aspect, in a second possible implementation manner of the first aspect, an inner diameter of a passage from an inlet of the passage to the propeller is not smaller than the positioning inner diameter.
In this implementation, the inner diameter of the passage between the inlet of the passage and the propeller is not less than (can be greater than) the positioning inner diameter, so that sufficient water flow can be provided for the passage, and the influence of insufficient inlet water flow on the power of the ship is avoided.
With reference to the first aspect, in a third possible implementation manner of the first aspect, the channel is used for arranging a plurality of propellers at intervals.
In this implementation, set up a plurality of screws in the passageway, can form multistage power to, because the screw sets up in the passageway, between each screw, can form a linkage effect (set up the screw during operation behind promptly, can play an enhancement effect to the screw that sets up in the front), realize the pressure boost effect, further promote the power and the utilization efficiency of energy that the screw provided, thereby resources are saved.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, each propeller arranged in the channel corresponds to a positioning inner diameter, and the positioning inner diameter corresponding to the propeller relatively closer to the outlet is not greater than the positioning inner diameter corresponding to the propeller relatively farther from the outlet.
In this implementation, the location internal diameter that different screw corresponds can be different, but the location internal diameter that corresponds apart from the screw that the export is relatively nearer is not more than the location internal diameter that corresponds apart from the screw that the export is relatively far away, can reduce the divergence angle that the screw promoted rivers like this, also can guarantee the axial kinetic energy of rivers (the direction that rivers flowed in the passageway and the direction when rivers flow to the export and the unanimous kinetic energy of hull axis direction promptly) to be favorable to promoting the utilization efficiency of energy.
With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the plurality of positioning inner diameters distributed in the channel decrease in size in sequence along a direction from the inlet to the outlet.
In the implementation mode, the sizes of the positioning inner diameters distributed in the channel are sequentially reduced along the direction from the inlet to the outlet, so that the divergence angle of the water flow pushed by the propeller can be reduced as much as possible, and the axial kinetic energy of the water flow is ensured.
With reference to the first aspect or any one of the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, an inlet of the channel is located at a head of a bottom of the hull, and a direction of the channel coincides with an axial direction of the hull.
In the realization mode, the inlet of the channel is positioned at the head of the bottom of the ship body, and the direction of the channel is consistent with the axial direction of the ship body, so that the resistance of water flow in the channel can be reduced as much as possible, and the utilization efficiency of energy is further ensured.
With reference to the first aspect, or with reference to any one of the first to fifth possible implementation manners of the first aspect, in a seventh possible implementation manner of the first aspect, the inlets of the channel are located on both sides of the hull bottom, and the inlets opened on both sides of the hull bottom are symmetrical with respect to an axis of the hull.
In the implementation mode, the inlets of the channel are positioned at two sides of the bottom of the ship body, and the inlets arranged at two sides of the bottom of the ship body are symmetrical about the axis of the ship body, so that the stability of the ship in operation can be ensured, and the problem of reduction of the stability of the ship caused by uneven stress is avoided.
With reference to the sixth possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, a filtering unit is disposed at the inlet to filter the water flow entering the channel.
In this implementation, the entrance is equipped with the filter unit, can filter the rivers that get into in the passageway, avoids debris entering passageway to influence the screw operation and bring the potential safety hazard for boats and ships.
With reference to the first aspect, or with reference to any one of the first to fifth possible implementation manners of the first aspect, in a ninth possible implementation manner of the first aspect, the ship further includes the propeller, the propeller is configured to be disposed in the passage, and a difference ratio between a diameter of the propeller and the positioning inner diameter does not exceed the preset difference ratio.
In this implementation, the screw sets up in the passageway, and the difference proportion of the diameter of screw and location internal diameter is no longer than presetting difference proportion, can effectively reduce the divergent angle (the divergent angle is big more, energy loss is more serious) when the screw moves with rivers backward promotion like this, make the rivers that promote have very little divergent angle (outdiffusion earage is less), make the thrust that rivers produced reverse around being close, more energy can be used for promoting boats and ships and move forward, improve the speed that rivers jetted backward, thereby the utilization efficiency of promotion energy, thereby reach the effect of energy saving. Meanwhile, the stability of the ship body can be improved by water flow in the channel at the bottom of the ship body.
In a second aspect, the present invention provides a method for setting a propeller, when a hull of a ship enters water, a bottom of the hull is submerged in the water, the bottom of the hull is provided with a channel, an outlet of the channel is located at the tail of the bottom of the hull, and the method includes: determining a target position from within the channel where a ratio of a difference between an inner diameter and a diameter of the propeller does not exceed a preset ratio of difference, wherein the inner diameter of the channel at the target position is greater than the diameter of the propeller, and the inner diameter of the channel between the target position and the outlet is not greater than the inner diameter at the target position, the preset ratio of difference being between 0 and 0.3; and the propeller is arranged at the target position, and when the propeller rotates, the propeller pushes the water in the channel to the outlet direction.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic view of a ship with a channel at the bottom of a hull according to an embodiment of the present application.
Fig. 2 is a schematic view of a propeller arranged in a channel at the bottom of a ship body according to an embodiment of the application.
Fig. 3 is a schematic view of a plurality of propellers arranged in a channel at the bottom of a ship body provided by the embodiment of the application.
Fig. 4 is a flowchart of a propeller setting method according to an embodiment of the present disclosure.
Icon: 100-a ship; 110-a hull; 120-a propeller; 121-a first propeller; 122-a second propeller; 123-third propeller.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
When the propeller of the ship is operated, water is pushed aft, and the water generates a reaction force against the ship 100, thereby pushing the ship 100 forward. However, in this process, since the propeller 120 has a large divergence angle when pushing the water flow backward, the direction of the reaction force of the water flow on the ship 100 is not all the same as the traveling direction of the ship 100, and thus, a large energy loss occurs. Therefore, in order to improve the efficiency of energy utilization and save energy, the present inventors have considered to reduce the angle of divergence of the water flow pushed by the propeller 120, and have provided a ship 100 and a method of installing the propeller 120 to improve the efficiency of energy utilization and save energy of the ship 100.
Referring to fig. 1, fig. 1 is a schematic view of a ship 100 with a channel at the bottom of the hull according to an embodiment of the present invention.
In this embodiment, the ship 100 may include a hull 110 and a propeller 120, and when the hull 110 enters water, a portion of the hull 110 is floating out of the water and a portion is submerged in the water, wherein the bottom of the hull is submerged in the water. A channel is arranged at the bottom of the ship body and used for arranging the propeller 120, and the outlet of the channel is positioned at the tail part of the bottom of the ship body. When the propeller 120 is disposed in the channel, the propeller 120 pushes water in the channel toward the outlet when rotating, thereby generating a forward thrust to the ship 100 to push the ship 100 to operate.
For example, in order to ensure the thrust effect and the stability of the ship 100, the direction of a part (for example, one meter, three meters, etc.) of the channel near the outlet may be consistent with the axial direction of the ship 100, so as to ensure that the angle of the water current sprayed from the outlet is consistent with the axial direction of the ship 100, so that the thrust direction generated by the water current on the ship 100 is consistent with the axial direction of the ship 100, thereby achieving a better thrust effect. Of course, the exit direction of the passage may be set according to actual needs in order to achieve a diversified operation effect when the ship 100 is operated. For example, in order to provide better dynamic effect for the ship 100 when in operation, the outlet direction of the passage may be slightly shifted downward by a certain angle (for example, the outlet direction of the passage is shifted downward by 5 ° or 10 ° compared to the horizontal direction) when the passage is opened at the bottom of the hull, and the outlet direction of the passage may be laterally shifted by a certain angle (for example, the outlet direction of the passage may be shifted by a certain angle, for example, 20 °, 30 ° or the like, to the left side of the hull 110 to assist the ship 100 turning left, and the outlet direction of the passage may be shifted by a certain angle, for example, 20 °, 30 ° or the like, to the right side of the hull 110 to assist the ship 100 turning right). Therefore, the present invention is not limited to this embodiment, and the actual requirements are met.
Referring to fig. 2, in the present embodiment, the propeller 120 may be disposed in the channel, so as to ensure that the spraying direction of the water flow is consistent when the water flow is sprayed out of the channel. In order to improve the utilization efficiency of the power-providing energy by the ship 100, the difference between the inner diameter of the channel behind the propeller 120 (the direction of pushing the water flow when the propeller 120 operates is referred to as the rear of the propeller 120) and the diameter of the propeller 120 can be reduced, so that the water flow pushed backwards by the propeller 120 has a very small divergence angle, thereby reducing energy loss, improving the utilization efficiency of the energy, and saving energy. In addition, the stability of the ship body can be improved by water flow in the channel at the bottom of the ship body.
In order to ensure sufficient water flow into the channel when the propeller 120 is in operation, thereby ensuring the power of the vessel 100, the channel may be set such that the inlet of the channel is equal to or greater than the outlet, and the inner diameter of the channel relatively closer to the outlet is not greater than the inner diameter of the channel relatively farther from the outlet. Therefore, on one hand, sufficient water flow can be guaranteed to be provided in the channel, on the other hand, extra diffusion leakage force generated by increasing the divergence angle in the flowing process of the water flow in the channel can be avoided, and therefore energy loss can be reduced, and the utilization efficiency of energy is improved.
For example, the passage may be arranged between the inlet and the outlet, and the inner diameter of the passage is gradually reduced to increase the pressure of the water jet ejected from the passage, thereby improving the pushing effect, but the invention is not limited to this application.
In this embodiment, the entrance of the channel may be located at the head of the hull bottom, in which case the direction of the channel may coincide with the axial direction of the hull 110. Therefore, the resistance of water flow flowing in the channel can be reduced as much as possible, and the utilization efficiency of energy is further ensured.
Of course, the inlets of the channels may also be located at two sides of the bottom of the hull, and the inlets provided at two sides of the bottom of the hull are symmetrical with respect to the axis of the hull 110, so that the stability of the ship 100 during operation can be ensured, and the problem of the stability reduction of the ship 100 caused by uneven stress is avoided.
The inlet of the channel may also be located at other positions of the bottom of the hull, and the relationship between the level of the inlet of the channel and the level of the outlet of the channel may be determined based on actual needs, for example, the level of the inlet of the channel may be the same as the level of the outlet of the channel, or the level of the inlet of the channel may be slightly higher than the level of the outlet of the channel, which is not limited herein.
In this embodiment, in order to filter the water flow entering the channel, a filtering unit may be disposed at the inlet for filtering impurities, such as some aquatic creatures, garbage in the water, and the like, so as to avoid the potential safety hazard brought to the ship 100 by the impurities entering the channel and affecting the operation of the propeller 120.
To facilitate an understanding of the present solution, the present solution is further described in connection with the propeller 120 disposed within the channel. In this embodiment, the inner diameter of the channel between the propeller 120 and the outlet is not greater than the positioning inner diameter (i.e., the inner diameter of the channel at the position where the propeller 120 is disposed), so that when the water flow pushed by the propeller 120 flows in the channel between the propeller 120 and the outlet, the outward diffusion leakage force generated by the diffusion of the water flow after the inner diameter of the channel becomes large is avoided as much as possible, and thus the energy loss of the water flow ejected from the channel in the flowing process of the channel can be reduced as much as possible, thereby ensuring the utilization efficiency of energy.
The diameter of the propeller 120 may be slightly smaller than the positioning inner diameter, and the difference ratio between the diameter of the propeller 120 and the positioning inner diameter does not exceed a preset difference ratio, wherein the preset difference ratio may be set between 0 and 0.3. Therefore, the divergence angle (the greater the divergence angle, the more serious the energy loss) when the propeller 120 pushes water flow backwards in the running process can be effectively reduced, so that the pushed water flow has a very small divergence angle (outward diffusion leakage force is smaller), the thrust generated by the water flow is close to the front and back directions, more energy can be used for pushing the ship 100 to run forwards, the speed of water flow backwards spraying is improved, the utilization efficiency of the energy is improved, and the energy-saving effect is achieved.
For example, in order to further improve the energy utilization efficiency of the ship 100, the difference ratio between the diameter of the propeller 120 and the positioning inner diameter may be set to not more than 0.05 (i.e., the preset difference ratio is 0.05), but should not be considered as limiting the present application. The preset difference proportion is set to be 0.05, so that on one hand, the divergence angle of water flow can be reduced as much as possible, the utilization rate of energy is improved, on the other hand, deformation caused by some influence factors can be considered, the condition that the operation of the propeller 120 is influenced due to the fact that the propeller 120 is directly attached to the channel is avoided, and the reliability of the ship 100 is improved.
The inner diameter of the channel from the inlet of the channel to the propeller 120 is not smaller than the positioning inner diameter, and the inner diameter of the channel from the inlet to the propeller 120 can be larger than the positioning inner diameter, so that sufficient water flow can be provided for the channel, and the influence on the power of the ship 100 caused by insufficient water flow pushed by the propeller 120 due to insufficient inlet water flow is avoided (the propeller 120 is difficult to fully exert the functions due to insufficient inlet water flow, and much energy is lost).
Referring to fig. 3, fig. 3 is a schematic view illustrating a plurality of propellers 120 arranged in a channel at the bottom of a ship hull according to an embodiment of the present application.
In this embodiment, a plurality of propellers 120 may be provided at intervals in the passage to form a multi-stage power to lift the power of the vessel 100. For example, the first propeller 121 is disposed at a first target position, the second propeller 122 is disposed at a second target position, and the third propeller 123 is disposed at a third target position in the passage.
Because a plurality of propellers 120 (first propeller 121, second propeller 122 and third propeller 123) are arranged in the channel, a linkage effect can be formed among the propellers 120 (namely, when the rear propeller 120 works, the front propeller 120 can be enhanced, and the front propeller 120 can also be enhanced for the rear propeller 120), so that a supercharging effect can be realized, the utilization efficiency of power and energy provided by the propellers 120 is further improved, and resources are saved.
For example, when the first propeller 121 is operated, the water flow in the passage is pushed from the front of the first propeller 121 to the rear of the first propeller 121. And the second screw propeller 122 sets up behind first screw propeller 121, when the second screw propeller 122 was moved, second screw propeller 122 itself can be to the rivers that are located second screw propeller 122 the place ahead in the passageway production appeal, thereby be convenient for carry the rivers to second screw propeller 122 rear from second screw propeller 122 place ahead, combine first screw propeller 121 with the propelling movement power of the direction of rivers to second screw propeller 122, can produce the linkage effect, reach the pressure boost effect, be favorable to promoting boats and ships 100's power, and similarly, this effect can be realized with the cooperation of second screw propeller 122 to third screw propeller 123.
In such a case (the plurality of propellers 120 are provided at intervals in the passage), there is a greater demand for the water flow flowing into the passage, and therefore, the passage may be provided such that the inner diameter of the passage at the inlet is greater than the inner diameter of the passage at the outlet to satisfy the sufficiency of the water flow of the passage, thereby providing the ship 100 with sufficient power, and further improving the efficiency of energy utilization.
Illustratively, each propeller 120 disposed in the channel has a corresponding positioning inner diameter, and the positioning inner diameter corresponding to the propeller 120 relatively closer to the outlet is not greater than the positioning inner diameter corresponding to the propeller 120 relatively farther from the outlet.
For example, the first propeller 121 is disposed at a first target position in the tunnel, the inner diameter of the tunnel at the first target position is a first pilot inner diameter, the second propeller 122 is disposed at a second target position, the inner diameter of the tunnel at the second target position is a second pilot inner diameter, the third propeller 123 is disposed at a third target position, and the inner diameter of the tunnel at the third target position is a third pilot inner diameter. Then, the first positioning inner diameter is equal to or greater than the second positioning inner diameter, which is equal to or greater than the third positioning inner diameter.
The corresponding location internal diameters of different propellers 120 can be different, but the location internal diameter that the propeller 120 that is relatively nearer apart from the export corresponds is not more than the location internal diameter that the propeller 120 that is relatively farther apart from the export corresponds, can reduce the divergence angle that the propeller 120 promoted rivers like this, also can guarantee the axial kinetic energy of rivers (the kinetic energy that the direction that rivers flowed in the passageway and the direction when rivers flowed to the export was unanimous with hull 110 axis direction promptly) to be favorable to promoting the utilization efficiency of energy.
Illustratively, a plurality of positioning inner diameters distributed in the passage each decrease in size in the direction from the inlet to the outlet, i.e., a first positioning inner diameter, a second positioning inner diameter, and a third positioning inner diameter, which decrease in size in order. Thus, the divergence angle of the water flow pushed by the propeller 120 can be reduced as much as possible, and the axial kinetic energy of the water flow is ensured, thereby improving the utilization efficiency of the energy.
In the present embodiment, in consideration of the cooperation between the plurality of propellers 120 provided in the channel, the rotation speed of the propeller 120 may be determined as needed, so that the amount of energy used is reduced as much as possible under the condition of ensuring power, thereby saving energy.
Referring to fig. 4, an embodiment of the present application further provides a method for setting a propeller, which may include step S10 and step S20.
For example, in the manufacturing process of the ship provided by the embodiment of the present application, a channel with an outlet located at the tail of the bottom of the ship body needs to be formed at the bottom of the ship body, the inner diameter of the channel at a position relatively close to the outlet is not greater than the inner diameter of the channel at a position relatively far from the outlet, when the ship body of the ship body enters water, the bottom of the ship body is submerged in the water, and in order to install the propeller in the channel, the effect of improving the energy utilization efficiency is achieved, and step S10 may be performed.
Step S10: and determining a target position in which the difference ratio between the inner diameter and the diameter of the propeller does not exceed a preset difference ratio from the inside of the channel, wherein the inner diameter of the channel at the target position is larger than the diameter of the propeller, the inner diameter of the channel between the target position and the outlet is not larger than the inner diameter at the target position, and the preset difference ratio is between 0 and 0.3.
In this embodiment, a target position where the difference ratio between the inner diameter and the diameter of the propeller does not exceed the preset difference ratio may be determined from within the passage, and the preset difference ratio is between 0 and 0.3.
After the target position is determined, step S20 may be performed.
Step S20: and a propeller is arranged at the target position, and when the propeller rotates, the propeller pushes the water in the channel to the outlet direction.
In this embodiment, the propeller may be mounted in a target position such that the propeller, when in operation, pushes water in the channel towards the outlet.
For example, a plurality of propellers may be spaced within the channel to boost the power of the vessel. For example, a plurality of target positions are determined from the channel, the positioning inner diameter of each target position is gradually reduced in size along the direction from the inlet to the outlet of the channel (of course, the size of the positioning inner diameter is not changed, or a part of the positioning inner diameter is not changed, and the propeller is arranged at the corresponding target position.
Of course, in order to further improve the energy utilization efficiency of the ship, when the target position is determined in the channel, the target position in which the difference ratio between the inner diameter and the diameter of the propeller does not exceed 0.05 or 0.1 may be determined from the channel, and is not limited herein.
The propeller is arranged in the channel arranged at the bottom of the ship body in such a way, so that the divergence angle of water flow pushed backwards when the propeller is operated can be effectively reduced, the thrust generated by the water flow is opposite in the front and back direction, more energy can be used for pushing the ship to operate forwards, the speed of water flow jetting backwards is improved, the utilization efficiency of the energy is improved, and the effect of saving energy is achieved.
To sum up, the embodiment of the application provides a boats and ships and setting method of screw, through seting up the passageway in the hull bottom, set up the screw in the passageway, and, the internal diameter of the passageway between screw and the export is not more than the location internal diameter, the diameter of screw is less than the location internal diameter, and, the difference of the diameter of screw and location internal diameter is no longer than preset difference proportion (can set for between 0 to 0.3), can effectively reduce the divergence angle when pushing rivers backward when the screw moves like this, make the rivers that promote have very little divergence angle, make the thrust that rivers produced reverse around being close, more energy can be used for promoting boats and ships and move forward, improve the speed that rivers jetted backward, thereby the utilization efficiency of promotion energy, thereby reach the effect of energy saving. Meanwhile, the stability of the ship body can be improved by water flow in the channel at the bottom of the ship body.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (11)
1. A ship is characterized by comprising a ship body, wherein when the ship body enters water, the bottom of the ship body is immersed in the water,
the bottom of the ship body is provided with a channel for arranging a propeller, and an outlet of the channel is positioned at the tail of the bottom of the ship body; the inner diameter of a channel between the propeller and the outlet is not larger than a positioning inner diameter, the diameter of the propeller is smaller than the positioning inner diameter, and the difference ratio of the diameter of the propeller and the positioning inner diameter is not larger than a preset difference ratio, wherein the positioning inner diameter represents the inner diameter of the channel where the propeller is arranged, and the preset difference ratio is between 0 and 0.3;
when the propeller is arranged in the channel, the propeller pushes water in the channel to the outlet direction when rotating.
2. The ship of claim 1, wherein the preset difference ratio is 0.05.
3. The ship of claim 1 wherein the inner diameter of the passage between the inlet of the passage to the propeller is no less than the positioning inner diameter.
4. The vessel of claim 1, wherein the channel is adapted to space a plurality of the propellers.
5. The vessel of claim 4, wherein each of said propellers disposed in said passage has a respective retention inner diameter, and wherein the propeller relatively closer to said outlet has a retention inner diameter no greater than the propeller relatively farther from said outlet.
6. The vessel of claim 5, wherein a plurality of positioning inner diameters distributed within the passage decrease in size in a direction from the inlet to the outlet.
7. A vessel according to any one of claims 1 to 6, wherein the inlet of the passage is located at the head of the bottom of the hull, the direction of the passage being coincident with the axial direction of the hull.
8. A vessel according to any one of claims 1 to 6, wherein the entrances to the channels are located on either side of the hull base, and the entrances opening on either side of the hull base are symmetrical about the axis of the hull.
9. A vessel according to claim 7, wherein the inlet is provided with a filter unit for filtering the flow of water entering the passage.
10. The vessel according to any one of claims 1 to 6, further comprising the propeller for being disposed within the channel, wherein a ratio of a diameter of the propeller to the positioning inner diameter does not exceed the preset difference ratio.
11. A method of providing a propeller wherein the bottom of a hull of a marine vessel is submerged when the hull is submerged, the bottom of the hull having a passageway with an outlet at the end of the bottom of the hull, the method comprising:
determining a target position from within the channel where a ratio of a difference between an inner diameter and a diameter of the propeller does not exceed a preset ratio of difference, wherein the inner diameter of the channel at the target position is greater than the diameter of the propeller, and the inner diameter of the channel between the target position and the outlet is not greater than the inner diameter at the target position, the preset ratio of difference being between 0 and 0.3;
and the propeller is arranged at the target position, and when the propeller rotates, the propeller pushes the water in the channel to the outlet direction.
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| CN202010482196.8A CN111559483A (en) | 2020-05-29 | 2020-05-29 | Ship and propeller setting method |
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| CN202010482196.8A CN111559483A (en) | 2020-05-29 | 2020-05-29 | Ship and propeller setting method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3008443A (en) * | 1956-10-22 | 1961-11-14 | Voith Gmbh J M | Device for covering transverse passages in ships |
| DE2516426A1 (en) * | 1975-04-15 | 1976-10-28 | Schottel Werft | Streamline flow bows thruster - uses propeller mounted in diverging, elongated profile ducts across bow of ship |
| DE3120609A1 (en) * | 1981-05-23 | 1982-12-16 | Harro 2350 Neumünster Thomsen | Bow-propeller marine propulsion |
| US6213824B1 (en) * | 2000-02-11 | 2001-04-10 | Power Vent Technologies, Inc. | Method for reducing vessel draft |
| US20110073029A1 (en) * | 2009-09-30 | 2011-03-31 | Zf Friedrichshafen Ag | Tunnel thruster for vessels |
| CN102330640A (en) * | 2010-06-11 | 2012-01-25 | F.波尔希名誉工学博士公司 | Flow energy installation |
| CN108016565A (en) * | 2017-11-27 | 2018-05-11 | 深圳市山年科技有限公司 | Ship |
| CN209176888U (en) * | 2018-10-26 | 2019-07-30 | 深圳市吉影科技有限公司 | Air motor is used under water |
| CN212500971U (en) * | 2020-05-29 | 2021-02-09 | 苏州融睿电子科技有限公司 | Ship |
-
2020
- 2020-05-29 CN CN202010482196.8A patent/CN111559483A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3008443A (en) * | 1956-10-22 | 1961-11-14 | Voith Gmbh J M | Device for covering transverse passages in ships |
| DE2516426A1 (en) * | 1975-04-15 | 1976-10-28 | Schottel Werft | Streamline flow bows thruster - uses propeller mounted in diverging, elongated profile ducts across bow of ship |
| DE3120609A1 (en) * | 1981-05-23 | 1982-12-16 | Harro 2350 Neumünster Thomsen | Bow-propeller marine propulsion |
| US6213824B1 (en) * | 2000-02-11 | 2001-04-10 | Power Vent Technologies, Inc. | Method for reducing vessel draft |
| US20110073029A1 (en) * | 2009-09-30 | 2011-03-31 | Zf Friedrichshafen Ag | Tunnel thruster for vessels |
| CN102330640A (en) * | 2010-06-11 | 2012-01-25 | F.波尔希名誉工学博士公司 | Flow energy installation |
| CN108016565A (en) * | 2017-11-27 | 2018-05-11 | 深圳市山年科技有限公司 | Ship |
| CN209176888U (en) * | 2018-10-26 | 2019-07-30 | 深圳市吉影科技有限公司 | Air motor is used under water |
| CN212500971U (en) * | 2020-05-29 | 2021-02-09 | 苏州融睿电子科技有限公司 | Ship |
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