CN112758288A

CN112758288A - Be applied to underwater kuppe end cover, underwater propulsor and underwater mobile device

Info

Publication number: CN112758288A
Application number: CN201911072070.7A
Authority: CN
Inventors: 魏建仓; 杨险峰
Original assignee: Tianjin Deepfar Ocean Technology Co ltd
Current assignee: Tianjin Deepfar Ocean Technology Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2021-05-07
Also published as: WO2021088508A1

Abstract

The application relates to a be applied to kuppe end cover under water, include: a warp-wise structure; a weft structure crossing the warp structure; the cross section of the warp-wise structure and/or the weft-wise structure is streamline from the water inlet side to the water outlet side.

Description

Be applied to underwater kuppe end cover, underwater propulsor and underwater mobile device

Technical Field

The application belongs to the field of submersible, and particularly relates to a flow guide cover end cover, an underwater propeller and an underwater moving device applied underwater.

Background

Currently, propellers are generally used as power propulsion devices in underwater mobile devices (such as diving machines). A pod cover is typically placed in front of the propeller to protect the user from injury from the propeller while using the underwater mobile device.

In the prior art, the cross sections of the warp-wise structure and the weft-wise structure of the air guide sleeve end cover are generally circular or strip-shaped. The inventors of the present application found that the water resistance of the spinner end cap is relatively large.

Disclosure of Invention

The present disclosure is directed to a nacelle end cover for underwater applications, which solves the above-mentioned problems of the prior art.

One embodiment of the present application provides a pod end cover for underwater application, comprising: a warp-wise structure; a weft structure crossing the warp structure; the cross section of the warp-wise structure and/or the weft-wise structure is streamline from the water inlet side to the water outlet side.

Optionally, the warp structures and the weft structures are on the same plane.

Optionally, the latitudinal structure is a concentric annular structure.

Optionally, the boundary of the cross section of the warp structure and/or weft structure is a NACA curve. The boundaries of the cross-section include NACA-like curves.

Optionally, the warp and weft structures are ABS plastic.

Optionally, the pod end cover is integrally formed.

Another embodiment of the present application provides an underwater propeller comprising: any one of the end covers is arranged on the water inlet side of the underwater propeller.

Optionally, the underwater propeller further comprises a propeller arranged on the water outlet side of the end cover.

Another embodiment of the present application provides an underwater mobile device, including: the underwater propeller.

Optionally, the moving speed of the underwater moving device is less than 4 knots.

The air guide sleeve end cover is utilized, and the propeller and the underwater moving device which are provided with the air guide sleeve end cover are installed. The cross-section of the warp and/or weft structures may be streamlined through the end caps. The resistance generated by the end cover can be effectively reduced, the forward assisting force of the underwater propeller and the underwater mobile device using the end cover is further reduced, and the working efficiency of the underwater propeller and the underwater mobile device is improved.

Drawings

Fig. 1 shows a schematic front view of a structure of a dome end cover applied under water according to an embodiment of the present application.

FIG. 2 illustrates a schematic cross-sectional view of the warp or weft structure of the pod end cap shown in FIG. 1.

Fig. 3 shows a schematic diagram of a simulation of water resistance of a pod end cap with a front view as in fig. 1 and with both the warp and weft structures being circular in cross-section.

Fig. 4 shows a water resistance simulation schematic diagram of the pod end cap with a front view as shown in fig. 1 and cross-sections of both the warp and weft structures as shown in fig. 2.

FIG. 5 illustrates a schematic structural outline of the pod end cover shown in FIG. 1.

Detailed Description

The following description is provided for the embodiments of the present disclosure relating to "a nacelle cover, an underwater propeller, and an underwater moving device for underwater use", and those skilled in the art will understand the advantages and effects of the present disclosure from the disclosure of the present disclosure. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

To address the problems with the background, one embodiment of the present application provides a pod end cover for underwater application, comprising: a warp-wise structure; a weft structure crossing the warp structure; the cross section of the warp-wise structure and/or the weft-wise structure is streamline from the water inlet side to the water outlet side.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

It should be understood that the terms "first," "second," "third," and "fourth," etc. in the claims, description, and drawings of the present application are used for distinguishing between different objects and not for describing a particular order. The terms "comprises" and "comprising," when used in the specification and claims of this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the present application herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the application. As used in the specification and claims of this application, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in the specification and claims of this application refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

Fig. 1 shows a schematic front view of a structure of a dome end cover applied under water according to an embodiment of the present application. FIG. 2 illustrates a schematic cross-sectional view of the warp or weft structure of the pod end cap shown in FIG. 1.

As shown in fig. 1, the end cap 1000 may include at least one latitudinal structure and at least one longitudinal structure. As described in an example embodiment, end cap 1000 may include two warp-wise structures, 111 and 112, respectively; and may include six latitudinal structures, 121-126 respectively. Alternatively, end cap 1000 may include other numbers of warp-wise structures, and end cap 1000 may include other numbers of weft-wise structures. Alternatively,

warp structures

111 and 112 may be cross-linked with

weft structures

121 and 126 in a mesh.

As shown in fig. 1, optionally, at least one of

warp structures

111 and 112 is a circular ring structure. Further,

warp structures

111 and 112 are concentric circular ring structures.

As shown in FIG. 1, optionally, at least one of

latitudinal structures

121 and 126 is a linear structure. Furthermore, the

latitudinal structures

121 and 126 are all linear structures and are radially arranged and are respectively connected with the

warp structures

111 and 112 in a crossing manner.

As shown in fig. 2, a cross section of at least one of the

warp structures

111 and 112 and the

weft structures

121 and 126 is streamlined from the water inlet side to the water outlet side. For example, the cross-section of warp structure 111 in the direction B-B' may be streamlined as shown in FIG. 2. The cross-section of latitudinal structure 122 along direction a-a' may be streamlined as shown in fig. 2.

Further, at least a portion of at least one of

warp structures

111 and 112 and

weft structures

121 and 126 is streamlined in cross-section. Further, at least a portion of a cross-section of at least a portion of at least one of

warp structures

111 and 112 and

weft structures

121 and 126 is streamlined, or a structure similar to a streamline.

As shown in fig. 2, the streamline structure is a streamline from the water inlet side to the water outlet side. Optionally, the boundary of the cross-section is a NACA curve or a curve similar to NACA. Further, at least a portion of the boundary of the cross-section is a NACA curve or a curve similar to NACA.

Alternatively, the cross section may be a symmetrical shape having the line C-C' as a symmetry axis. Further, the above cross-section on both sides of line C-C' is bounded by two NACA curves or NACA-like curves, respectively. Alternatively, the cross-section may not be an axisymmetric pattern, i.e., the cross-sectional boundaries on both sides of line C-C' may be two different NACA curves. The cross-sectional boundaries on both sides of line C-C' may also have only one side with the NACA curve and the other side with the other curve.

Alternatively, the cross-sections of

warp structures

111 and 112 and

weft structures

121 and 126 may be streamlined. Alternatively, only some of the warp and weft structures may be streamlined in cross-section. Alternatively, only one warp structure or only one weft structure may be streamlined.

Alternatively, the cross-sections of

warp structures

111 and 112 and

weft structures

121 and 126 may be the same or different. Alternatively, the cross-sections of

warp structures

111 and 112 may be the same or different. The cross-sections of the

latitudinal structures

121 and 126 may be the same or different.

Fig. 3 and 4 show a water resistance simulation diagram of the two types of dome end covers of the prior art end cover and the end cover 1000, which have the same factors except the cross section of the longitudinal and latitudinal structure. Fig. 3 shows a schematic water resistance simulation diagram of the nacelle end cover with a front view as shown in fig. 1 and both the warp-wise structure and the weft-wise structure having circular cross sections. Fig. 4 shows a water resistance simulation schematic diagram of the pod end cap with a front view as shown in fig. 1 and cross-sections of both the warp and weft structures as shown in fig. 2.

As shown in FIG. 3, when the water flow passes through the prior art dome end cover, a large vortex is generated, and the direction of the water flow is relatively disordered, so that the water resistance caused by the prior art dome end cover is relatively large. As shown in fig. 3, when the water flow rate on the water inlet side is 3 knots, the water resistance generated by the end cover of the air guide sleeve in the prior art is 13.89 newton.

As shown in FIG. 4, as the water flows through the dome end cover 1000, the water flow direction is relatively smooth and there are relatively small vortices. Thus, the dome end cover 1000 causes less water resistance. As shown in fig. 4, when the water flow rate on the water inlet side is 3 knots, the water resistance generated by the dome end cover 1000 is 4.14 newton.

As shown in fig. 5, optionally,

warp structures

111 and 112 and

weft structures

121 and 126 are disposed on the same plane. Optionally, the

warp structures

111 and 112 and the

weft structures

121 and 126 may also be disposed on the same spherical surface or the same ellipsoidal surface. Optionally, the

warp structures

111 and 112 and the

weft structures

121 and 126 may also be disposed on the same curved surface. Further, the curved surface may be streamlined.

As shown in fig. 1 and 5, the end cap 1000 may also include a central disk 131. Further, the upstream surface of the center plate 131 may be circular, regular polygonal, or other shapes. Further, the upstream surface of the center pan 131 is a center symmetrical pattern. Further, the center of symmetry of the upstream face of the central disc 131 may coincide with the center of the

warp-wise structures

111 and 112.

Optionally, central disc 131 may be connected to

latitudinal structures

121 and 126, respectively. Further, the latitudinal structures 121-126 may be respectively connected to the edge of the central disk in a radial manner. Further, the upstream surface of the central disc 131 is circular, and the connection points of the

latitudinal structures

121 and 126 and the central disc 131 are uniformly distributed at the edge of the central disc.

As shown in fig. 5, the central plate 131 may be a planar structure, and further, the upstream surface of the central plate 131 is streamlined. Optionally, the central disc 131 is disposed on the same plane or the same curved surface as the

warp structures

111 and 112 and the

weft structures

121 and 126.

As shown in the exemplary embodiment, the end cap 1000 may also include a bezel 141. The frame 141 may be annular. Further, frame 141 may be circular and have an axis that coincides with the axis of

warp structures

111 and 112. Further, at least a portion of the frame 141 may be streamlined. Optionally, on the water-facing side, the frame 141 may be higher than the

warp structures

111 and 112 and the

weft structures

121 and 126.

Optionally, the frame 141 further comprises a connection mechanism for securing the end cap 141. The connecting structure can be a locking mechanism such as a bolt, a screw hole, a buckle and the like.

Optionally, at least one of

warp structures

111 and 112 and

weft structures

121 and 126 may be made of engineering plastic, such as ABS plastic.

Alternatively,

warp structures

111 and 112 and

weft structures

121 and 126 may be integrally formed. Further, at least two of the

warp structures

111 and 112 and the

weft structures

121 and 126 and the central disc 131 and the frame 141 are integrally formed.

The application also provides an underwater propeller which comprises any one of the air guide sleeve end covers. Wherein, this kuppe end cover sets up in the side of intaking of this propeller.

Optionally, the underwater propeller may further include a propeller disposed on the water outlet side of the pod end cover.

The application also provides an underwater moving device which comprises any one of the underwater propellers. Optionally, the underwater movement device may comprise two or more underwater thrusters of any of the preceding. Optionally, the underwater movement speed of the underwater movement device is less than 4 knots.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. The technical features of the embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the description of the embodiments is only intended to facilitate the understanding of the methods and their core concepts of the present application. Meanwhile, a person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of the present application. In view of the above, the description should not be taken as limiting the application.

Claims

1. A pod end cover for underwater application, comprising:

a warp-wise structure;

a weft structure crossing the warp structure;

the cross section of the warp-wise structure and/or the weft-wise structure is streamline from the water inlet side to the water outlet side.

2. The pod end cap of claim 1 wherein the warp-wise structure is in a same plane as the weft-wise structure.

3. The pod end cap of claim 1, wherein the latitudinal structure is a concentric annular structure.

4. The pod end cap of claim 1 wherein a cross-section of the warp and/or weft structures is bounded by NACA curves. The boundaries of the cross-section include NACA-like curves.

5. The pod end cap of claim 1, wherein the warp and weft structures are ABS plastic.

6. The pod end cover of claim 1, wherein the pod end cover is integrally formed.

7. The pod end cover of claim 1, further comprising:

and the central disc is connected with the latitudinal structure.

8. An underwater propeller, comprising:

the end cap of any one of claims 1-7, disposed on an intake side of the underwater propeller.

9. An underwater mobile device comprising: an underwater propeller as claimed in claim 8.

10. The underwater moving device as claimed in claim 9, wherein a moving speed of the underwater moving device is less than 4 knots.