CN216468403U - Propeller - Google Patents
Propeller Download PDFInfo
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- CN216468403U CN216468403U CN202122773297.3U CN202122773297U CN216468403U CN 216468403 U CN216468403 U CN 216468403U CN 202122773297 U CN202122773297 U CN 202122773297U CN 216468403 U CN216468403 U CN 216468403U
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- water inlet
- propeller
- water
- drainage plate
- movable impeller
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Abstract
The embodiment of the utility model discloses a propeller, belonging to the technical field of water power devices, the propeller comprises: the water inlet pipe comprises a water inlet and a water outlet, the cross sections of the water inlet and the water outlet are vertically distributed, and a hollow part is arranged between the water inlet and the water outlet; the movable impeller is arranged in the hollow part of the water inlet pipe, and the movable impeller discharges water at the water inlet from the water outlet in a rotating state; and the drainage plate is arranged between the water inlet and the movable impeller and used for draining water flowing from the water inlet to the movable impeller. Through the scheme of this application, through set up the drainage plate in the inlet tube, can improve the flow direction of rivers through the drainage plate for the rivers density distribution of movable vane cross-section is more reasonable, and then has improved the propulsion efficiency of propeller.
Description
Technical Field
The utility model relates to the technical field of water power devices, in particular to a propeller.
Background
A ship propeller is a device for providing thrust on a ship, and functions to convert power provided by an energy source (e.g., an engine) into thrust, and a mechanism for propelling the ship forward is an energy converter for converting natural force, manpower, or mechanical energy into ship thrust. Common propellers include paddle wheels, water jet propellers, and the like. Modern ships are most widely used with propellers.
An electric propulsion system, as the name implies, is an electric motor that provides mechanical power to a propeller. Which uses batteries or other power generation means that can emerge in the future to power the propeller. The ducted propeller is a propulsion tool of a ship, and is formed by adding a draft tube around a propeller. The ducted propeller has the advantage that 30-35% of thrust can be increased by using the action of the guide pipe so as to meet the navigation requirement. On some tugs, pushers and cargo vessels, increased thrust is achieved by using ducted propellers as propulsion means.
With the application of water jet propulsion devices on surfboards, powered surfing is becoming a reality. The surfing enthusiasts are not bound by the previous harsh surfing environment any more, and can enjoy the smooth surfing experience brought by the electric surfboard at any time. However, the current research progress of the high-speed water jet propeller is limited, the jet pump efficiency of the electric surfboard is not high, and the flight time of the surfboard cannot meet the requirements of users. In order to compensate for the low efficiency of the spray pump, developers have to increase the battery capacity. This results in an increase in the size and weight of the panel, which affects the manoeuvrability of the panel. Accordingly, there is a need for an attachment design for an electric surfboard pump that improves propulsion efficiency and also improves maneuverability of the board.
SUMMERY OF THE UTILITY MODEL
In view of the above, embodiments of the present invention provide a propeller, which at least partially solves the problems in the prior art.
An embodiment of the present invention provides a propeller, including:
the water inlet pipe comprises a water inlet and a water outlet, the cross sections of the water inlet and the water outlet are vertically distributed, and a hollow part is arranged between the water inlet and the water outlet;
the movable impeller is arranged in the hollow part of the water inlet pipe and discharges water at the water inlet from the water outlet in a rotating state;
and the drainage plate is arranged between the water inlet and the movable impeller and conducts drainage on water flowing from the water inlet to the movable impeller.
According to a specific implementation manner of the embodiment of the present disclosure, the flow guide plate includes a head end close to the water inlet and a tail end close to the movable impeller, and the head end and the tail end are in a streamline shape.
According to a specific implementation of the disclosed embodiment, the drainage plate has an arc-shaped structure.
According to a specific implementation manner of the embodiment of the present disclosure, the cross section of the flow guide plate is an airfoil shape.
According to a specific implementation manner of the embodiment of the present disclosure, the drainage plate has a first end surface close to the water inlet, and the first end surface is attached to the edge of the water inlet.
According to a specific implementation manner of the embodiment of the disclosure, the drainage plate is provided with a second end surface close to the movable impeller, and the second end surface is attached to the edge of the inner wall of the water inlet pipe.
According to a specific implementation manner of the embodiment of the present disclosure, the area of the water inlet is larger than the area of the water outlet.
According to a specific implementation manner of the embodiment of the present disclosure, the opening of the water inlet is vertically downward.
According to a specific implementation of the embodiment of the present disclosure, the drainage plate is made of a composite material.
According to a specific implementation of the embodiment of the present disclosure, the drainage plate is made of a flexible material.
The propeller provided by the embodiment of the utility model comprises: the water inlet pipe comprises a water inlet and a water outlet, the cross sections of the water inlet and the water outlet are vertically distributed, and a hollow part is arranged between the water inlet and the water outlet; the movable impeller is arranged in the hollow part of the water inlet pipe and discharges water at the water inlet from the water outlet in a rotating state; and the drainage plate is arranged between the water inlet and the movable impeller and conducts drainage on water flowing from the water inlet to the movable impeller. Through above-mentioned structure, reduce the resistance of inlet tube, improve the thrust of whole propeller jet pump.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a propeller according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another propeller provided in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of another propeller provided in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of another propeller provided in the embodiment of the present invention.
Reference numerals:
1-a propeller; 2-water inlet pipe; 3-a drainage plate-; 4-moving impeller; 5-a water inlet; 6-water outlet
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2, 3 and 4, an embodiment of the present invention provides a propeller, including: inlet tube 2, movable vane wheel 4 and drainage plate 3.
The inlet tube 2 is the major component of propeller, the inlet tube 2 includes water inlet 5 and delivery port 6, the water inlet 5 with the cross-section vertical distribution of delivery port 6, so, water inlet 5 can place in aqueous through perpendicular decurrent mode to can make things convenient for the propeller to absorb water, delivery port 6 then can adopt the mode that the level set up, so, through the discharged water in the delivery port horizontal direction, provide thrust for whole propeller.
In order to provide power components in the propeller, a hollow portion is provided between the water inlet 5 and the water outlet 6, and the hollow portion can accommodate water entering from the water inlet and can be provided with power components such as the impeller 4.
The movable impeller 4 is a power unit of a propeller, the movable impeller 4 is mounted in a hollow portion of the water inlet pipe 2, and the movable impeller 4 discharges water from the water inlet 5 through the water outlet 6 in a rotating state. The movable impeller 4 can be used in cooperation with power components such as a motor, and can be used for driving the movable impeller 4 to rotate in a certain direction, so that water stored in the hollow part can be discharged through the water outlet 6, and further advancing power is provided for the propeller.
The water inlet 5 of the water inlet pipe 2 is vertically distributed with the water flow direction, so that the water flow in the water inlet pipe 2 is unevenly distributed on the movable impeller 4. Specifically, the water flow density is higher in the lower part of the movable impeller 4 close to the water inlet, and the water flow density is lower in the upper part of the movable impeller 4 far from the water inlet 5. Through the cross-section velocity of flow distribution in the tight place ahead of monitoring movable vane wheel 4, can learn because the characteristics of inlet tube 2 diagonal flow formula, when rivers gush into inlet tube 2, movable vane wheel 4 the place ahead cross-section below velocity of flow is fast, and the top velocity of flow is slow, and the cross-section wake distributes inhomogeneously. This affects the power transmission efficiency of the movable impeller 4.
Therefore, a drainage plate 3 is arranged between the water inlet 5 and the movable impeller 4, and the drainage plate 3 is arranged between the water inlet 5 and the movable impeller 4 and drains water flowing from the water inlet 5 to the movable impeller 4.
By designing the drainage plate 3, connecting the water inlet 5 with the movable impeller 4, incoming flow with high flow speed in the area of the water inlet 5 is guided to the area above the section of the movable impeller 4 in front of the movable impeller 4, so that wake flow in front of the movable impeller 4 is uniformly distributed, and wake flow fraction is improved; and different leading edge arrangement starting points can be selected according to different water inlet flow velocity distributions, and the water inlet leading edge arrangement starting points are divided into drainage plates of different drainage types.
The curve shape at the end to end of the drainage plate 3, flow velocity distribution based on water inlet 5 and the flow velocity distribution situation of the tight place ahead cross-section of movable vane 4 cooperate the design, for having the plate structure of certain radian, and its section is the wing section. Since in the propeller 1 module, the water intake pipe 2 is a resistance element. When the drainage plate 3 is counted into the stress system of the water inlet pipe 2, the resistance of the water inlet pipe 2 can be reduced, and therefore the thrust of the whole propeller 1 is improved.
Meanwhile, when the incoming flow rushing into the water inlet pipe 2 acts on the drainage plate 3, the maneuverability of the plate body is also affected. Fluid simulation verification of a plurality of speed working conditions shows that the incoming flow acts on the drainage plate 3 and can generate a turning moment, and the turning moment can make the turning of the plate body easier and increase the turning flexibility.
Compared with the original propeller, the maximum efficiency lifting amount of the propeller additionally provided with the drainage plate is 4.8 percent, and the maximum efficiency lifting amount of the propeller under the same working condition is 12.6 percent; the flow guiding plate guides the incoming flow flowing into the water inlet pipe, improves the wake distribution in the close front of the movable impeller, and improves the wake fraction.
In order to further reduce the resistance of the flow guiding plate 3 to water flow, according to a specific implementation manner of the embodiment of the present disclosure, the flow guiding plate 3 includes a head end near the water inlet 5 and a tail end near the movable impeller 4, and the head end and the tail end are in a streamline shape. The resistance of the drainage plate to water flow can be further reduced through the streamline structure.
The drainage plate can be set into different shapes according to actual needs, and referring to fig. 2-4, the drainage plate can be designed into a non-through shape, so as to reduce the resistance of the drainage plate 3 in water, and according to a specific implementation manner of the embodiment of the present disclosure, the drainage plate 3 has an arc-shaped structure. Through the arc structure, can reduce the resistance that drainage plate 3 produced in aqueous.
In order to further reduce the resistance of the flow guide plate in water, according to a specific implementation manner of the embodiment of the present disclosure, the cross section of the flow guide plate 3 is an airfoil shape. Through the wing section structure, can make the drainage plate pass through more rivers in the short time.
Through carrying out the curve laminating with drainage plate 3 and inlet tube 2, the drainage efficiency of improvement drainage plate that also can step forward, according to this disclosed embodiment's a concrete implementation, drainage plate 3 have be close to the first terminal surface of water inlet 5, first terminal surface with the edge of water inlet 5 laminates mutually.
According to a specific implementation manner of the embodiment of the present disclosure, the flow guide plate 3 has a second end surface close to the movable impeller 4, and the second end surface is attached to the edge of the inner wall of the water inlet pipe 2.
In order to increase the thrust of the propeller, the water inlet 5 and the water outlet 6 may be designed to be of different sizes, and according to a specific implementation manner of the embodiment of the present disclosure, the area of the water inlet 5 is larger than the area of the water outlet 6. In this way, there is sufficient water in the inlet pipe 2 to provide propulsion power for the propeller.
Water inlet according to a specific implementation of the embodiment of the present disclosure, the opening of the water inlet 5 is vertically downward, which is convenient for the propeller to suck more water and provide thrust for the propeller.
According to a specific implementation manner of the embodiment of the present disclosure, the drainage plate 3 is made of a composite material. For example, the flow guide plate 3 may be made of carbon fiber or other materials, so that the weight of the flow guide plate 3 may be reduced, and the propulsion efficiency of the propeller may be further improved.
According to a concrete implementation mode of this disclosure, drainage plate 3 is formed by the preparation of flexible material, through using flexible material, can guarantee that the drainage plate has certain crookedness, and then makes drainage plate 3 laminate with rivers more.
The above description of the flow guide plate 3 is only exemplary, and the above description may be adapted and modified in an actual production process, so that the modified structure of the flow guide plate 3 more satisfies the actual needs of the propeller, and is not limited in this respect. The reasonable contemplated structures of the drainage plate belong to the protection scope of the drainage plate.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A propeller, comprising:
the water inlet pipe comprises a water inlet and a water outlet, the cross sections of the water inlet and the water outlet are vertically distributed, and a hollow part is arranged between the water inlet and the water outlet;
the movable impeller is arranged in the hollow part of the water inlet pipe and discharges water at the water inlet from the water outlet in a rotating state;
and the drainage plate is arranged between the water inlet and the movable impeller and conducts drainage on water flowing from the water inlet to the movable impeller.
2. The propeller of claim 1, wherein:
the flow guide plate comprises a head end close to the water inlet and a tail end close to the movable impeller, and the head end and the tail end are in a streamline shape.
3. The propeller of claim 2, wherein:
the drainage plate is of an arc-shaped structure.
4. The propeller of claim 3, wherein:
the section of the drainage plate is an airfoil.
5. The propeller of claim 3, wherein:
the drainage plate is provided with a first end face close to the water inlet, and the first end face is attached to the edge of the water inlet.
6. The propeller of claim 3, wherein:
the drainage plate is provided with a second end face close to the movable impeller, and the second end face is attached to the edge of the inner wall of the water inlet pipe.
7. The propeller of claim 1, wherein:
the area of the water inlet is larger than that of the water outlet.
8. The propeller of claim 1, wherein:
the opening of the water inlet is vertically downward.
9. The propeller of claim 1, wherein:
the drainage plate is made of composite materials.
10. The propeller of claim 1, wherein:
the drainage plate is made of flexible materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122773297.3U CN216468403U (en) | 2021-11-12 | 2021-11-12 | Propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122773297.3U CN216468403U (en) | 2021-11-12 | 2021-11-12 | Propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216468403U true CN216468403U (en) | 2022-05-10 |
Family
ID=81451447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122773297.3U Active CN216468403U (en) | 2021-11-12 | 2021-11-12 | Propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216468403U (en) |
-
2021
- 2021-11-12 CN CN202122773297.3U patent/CN216468403U/en active Active
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