CN111237216A

CN111237216A - Centrifugal through-flow water navigation body propulsion device and application

Info

Publication number: CN111237216A
Application number: CN201911205948.XA
Authority: CN
Inventors: 曾德邻; 曾固
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-29
Filing date: 2019-11-29
Publication date: 2020-06-05
Also published as: WO2020108655A1; CN211874764U; CN111237215A; CN111237217B; CN211901013U; CN211874765U; CN211370786U; CN111237213A; CN111237214A; CN211901014U; CN111237217A; CN111237212A; CN211370785U; CN211874763U

Abstract

The invention provides a centrifugal through-flow water navigation body propulsion device and application thereof, wherein the centrifugal through-flow water navigation body propulsion device comprises a propulsion device body; the propulsion device body comprises a first-stage fluid centrifugal cross-flow action device and at least one stage of fluid pressurization output structure body; the fluid centrifugal through-flow action device comprises a centrifugal impeller and a centrifugal through-flow guide cylinder; the inner surface of the centrifugal through-flow guide cylinder body is provided with a guide structure body; the fluid pressurization output structure is an axial flow impeller; the centrifugal impeller and the axial flow impeller are jointly deployed in the centrifugal through-flow guide cylinder body, and the axial flow impeller is positioned behind the fluid output end of the guide structure body; the propulsion device body is provided with at least one water inlet and one water spraying opening. The centrifugal through-flow water craft propulsion device not only provides centrifugal drive for water inflow, but also is provided with a multi-stage water flow drive (re-energization) device in series to energize water flow in the device for multiple times, and can obtain stronger propulsion force compared with other jet propulsion devices.

Description

Centrifugal through-flow water navigation body propulsion device and application

Technical Field

The invention relates to a fluid action technology, in particular to a centrifugal through-flow water navigation body propulsion device and application thereof.

Background

The flow of fluids (including air and liquid streams) requires the action of fluid action devices. The fluid action device can be divided into two types of air flow driving fluid devices and liquid flow driving fluid devices according to different working media. The driving air flow fluid device and the driving liquid flow fluid device are in various practical application types, but are typically used in a turbine type fluid centrifugal impeller and an axial flow impeller, and are most widely applied. The turbine fluid centrifugal impeller and the axial flow impeller take the axial flow centrifugal impeller and the axial flow impeller and the centrifugal impeller and the axial flow impeller as cores.

The water navigation body refers to a ship or a submarine. At present, axial flow type centrifugal impellers and axial flow impellers are generally adopted as propulsion devices on a marine vessel, and the defects are that the fluid conveying pressure is low, and the working efficiency of the fluid centrifugal impellers and the axial flow impellers is weak. Therefore, how to obtain a water craft propulsion device capable of improving the working efficiency of the fluid centrifugal impeller and the axial flow impeller is a big problem to be solved by the industry.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a centrifugal through-flow water craft propelling device, which comprises a propelling device body;

the propulsion device body comprises a first-stage fluid centrifugal cross-flow action device and at least one stage of fluid pressurization output structure body; the fluid centrifugal through-flow action device comprises a centrifugal impeller and a centrifugal through-flow guide cylinder; a flow guide structure body is arranged on the inner surface of the centrifugal through-flow guide cylinder body;

the fluid pressurization output structure is an axial flow impeller; the centrifugal impeller and the axial flow impeller are jointly deployed in the centrifugal through-flow guide cylinder body, and the axial flow impeller is positioned behind the fluid output end of the guide structure body;

the propulsion device body is provided with at least one water inlet and one water spray nozzle.

Further, the water inlet is of a flat structure, an inclined notch structure or a flat structure.

Further, the water inlet on the propulsion device body is transversely arranged at 90 degrees.

Further, the water inlet on the propulsion device body is arranged in a direction inclined to the direction.

Further, the water jet is in a flat structure, an inclined notch structure or a flat structure.

Further, the water jet is of a flat structure.

Further, the water spraying opening on the propulsion device body is arranged in an obliquely downward direction.

Further, the water spray nozzles on the propulsion device body are arranged in a lateral direction.

Further, the water spraying opening is arranged on the propulsion device body in an adjustable direction.

Further, a cylinder body of the centrifugal through-flow guide cylinder body is provided with a fluid auxiliary inlet; the fluid auxiliary inlet is communicated with the inner space of the centrifugal through-flow guide cylinder.

Further, the propulsion device body also comprises an outlet end flow negative pressure amplification structure body;

the outlet flow negative pressure amplification structure is a shell comprising an outlet internal fluid channel and an outlet external fluid input channel; the outlet of the outlet end external fluid input channel is communicated with the outlet end internal fluid channel;

the outlet flow negative pressure amplification structure body is arranged at the fluid output end of the centrifugal through-flow guide cylinder body.

Further, the propulsion device body also comprises a fluid outlet structure;

the fluid outlet structure is a funnel-shaped structure with beam action;

the fluid outlet structure is arranged at the fluid outlet end of the propulsion device body.

Further, the propulsion device body also comprises a fluid pressurization output structure body;

the fluid pressurization output structure is an impeller for improving dynamic pressure of output fluid;

the fluid pressurization output structure is disposed in the centrifugal through-flow guide cylinder and behind the fluid outflow end of the guide structure.

Further, a driving source is also included;

the driving source is arranged in the centrifugal through-flow guide cylinder body; the driving source is in transmission connection with a centrifugal impeller and an axial flow impeller which are arranged in the centrifugal through-flow guide cylinder body.

Furthermore, the centrifugal impeller and the axial flow impeller which are arranged in the centrifugal through-flow guide cylinder body are provided with transmission shafts which radially extend out of the cylinder body;

the transmission shaft is used for being in transmission connection with an external driving source.

Further, the drive source is an electric drive source or a hydraulic drive source.

Further, the propulsion device body also comprises a communication cylinder;

the communicating cylinder is connected with the fluid output end of the propelling device body.

Further, the communicating cylinder body is a straight pipe, a curved pipe or a folded pipe.

Furthermore, a mounting structure is arranged on the propulsion device body; the propulsion device body is fixedly arranged on the marine body through the mounting structure.

Furthermore, a suspension device rod which is rigid as a whole is arranged on the propulsion device body; the propulsion device body is fixedly arranged on the marine body through the suspension device rod which is rigid as a whole.

Furthermore, the suspension device rod is set to be a rigid structure in an outer body, a rotatable structure in an inner body, the inner body is fixedly connected with the propulsion device body, the outer body is fixedly installed with the water navigation body, the inner body is connected with a steering control piece on the water navigation body, and the rotating control piece is used for driving the propulsion device body to steer around the central shaft of the suspension device rod in a left-right or 360-degree mode.

Furthermore, a shield is arranged at the connecting part of the inner body of the suspension device rod and the propulsion device body; the inner body of the suspension device rod and the outer shell of the propelling device body are integrally formed, or the inner body of the suspension device rod is connected with the propelling device body through a fixed mounting structure;

the outer body of the suspension device rod is provided with a fixed structural part; the fixed structural part is used for fixedly mounting the outer body on the water navigation body; the outer body of the suspension device rod is provided with a bearing structural member which is matched with the fixed structural member for installation.

The invention also provides a ship applying the centrifugal through-flow water navigation body propulsion device.

The invention also provides a submarine applying the centrifugal through-flow water navigation body propulsion device.

The centrifugal through-flow water navigation body propulsion device provided by the invention has the value functions and meanings as follows:

1. except that the first stage of the centrifugal through-flow jet propulsion device provides centrifugal drive for water inflow, the same centrifugal through-flow jet propulsion device is convenient to serially install a multi-stage water flow drive (re-energizing) device after the first stage, and the water flow in the device is energized for multiple times, so that stronger propulsion force can be obtained compared with other jet propulsion devices.

2. Based on the centrifugal through-flow jet propulsion device, a water inlet and water inlet jet propulsion mode is selected, and the water inlet and water inlet mode can be known according to Newtonian mechanics, so that the inevitable pushing water flow resistance of a bow part is reduced when a ship advances, and the centrifugal through-flow jet propulsion device positioned in front of the bow of the ship can supply forward pulling force to the ship after water enters. The reduction and increase make the ship equipped with the centrifugal through-flow jet propulsion device obtain the propulsion force of the ship by doubling, and on the other hand, the propulsion effect of the ship is enhanced, and the propulsion effect is obviously stronger than that of a propeller propulsion mode of a traditional ship tail device.

3. The centrifugal through-flow jet propulsion device based on the ship device adopts an upstream water inlet jet propulsion mode, can deeply inhibit the formation of ship bow navigation waves, and particularly, when the centrifugal through-flow jet propulsion device is arranged along the length direction of a ship in a plurality of steps, a main or main water inlet of the centrifugal through-flow jet propulsion device arranged on a ship side faces the outer side of a deviation ship side, so that the ship side water transportation condition is obviously improved, the ship navigation wave resistance is obviously reduced, and the ship propulsion force is indirectly enhanced.

4. The ship navigation resistance is reduced from another aspect by supporting the cancellation of a bulbous bow arranged for restraining the wave-making resistance of the ship and the tail rudder for supporting the cancellation of the direction adjustment of the ship, and the indirect ship propulsion enhancement is obtained again.

5. The centrifugal through-flow jet propulsion device takes an upstream water inlet jet propulsion mode, particularly takes a bow upstream water inlet mode of a ship body, and can obtain the traction effect of a water body in front of the running of the ship, so that the power efficiency of the ship can be obviously improved, and the centrifugal through-flow jet propulsion device has great energy-saving advantages.

6. Compared with large and ultra-large propellers, the propeller can obviously reduce cavitation, and reduce negative effects of cavitation on the power performance of ships and warships and cavitation damage to the propellers.

7. Compared with a propeller propulsion mode, the structure of a power transmission system of a ship propeller can be simplified in an ultra-large range, the space occupied by ship power transmission is supported to be released, and the effective bin capacity of a ship is remarkably improved.

8. Compared with a propeller propelling mode, the propeller propelling mode can reduce the maximum waterline depth (the distance from the maximum lower edge of the propeller to the straight water surface) of the boat and support shallow water navigation.

9. Compared with a propeller propulsion mode, the large-tonnage boat can reduce the depth requirement on a port.

10. The mechanical noise of the propulsion system arrangement can be significantly reduced compared to the propeller propulsion mode.

11. Compared with a propeller propulsion mode, the mechanical damage of the propulsion device to various aquatic organisms can be obviously reduced.

12. Compared with a propeller propulsion mode, the risk that the propulsion device is wound by foreign matters can be greatly reduced.

13. Compared with large and ultra-large propellers, the propeller has the advantage of remarkably reducing the manufacturing difficulty and the manufacturing cost of the ship propulsion device.

14. Compared with large and ultra-large propellers, the centrifugal through-flow jet propulsion unit is simpler to integrally mount than the propellers.

15. The centrifugal through-flow jet propulsion unit is highly responsive and supports full electric propulsion of the boat.

16. Compared with large and ultra-large propellers and other water jet propulsion technologies, the centrifugal through-flow jet propulsion device which is driven by electric propulsion and takes a pipeline structure has independence of device and operation, is not restricted by the layout of a power cabin of a ship, can flexibly and changeably set a machine position, and is convenient to adjust to obtain the ideal layout of the propulsion power of the ship,

17. the method is suitable for being applied to the configuration of a modern intelligent control teletransmission operation technology, and the ship is more flexible to control.

18. The straight barrel structure of the centrifugal through-flow jet propulsion unit facilitates the construction of a protective structure for the propulsion unit to avoid the adhesive damage of harmful marine organisms.

19. Compared with highway transportation, high-speed railway transportation and air transportation, the method does not need to spend high construction cost, only utilizes the water channel naturally existing in rivers, lakes and seas, accelerates the water channel by popularizing and applying the centrifugal through-flow jet propulsion technology, and has unimaginable contribution to national economy and even world economy.

20. The popularization and application of big and small boats are supported, and a brand-new water high-speed era and a new age golden new wharf culture are created.

21. The method brings revolutionary promotion to the full electric propulsion and high speed of military boats.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first embodiment of a centrifugal through-flow water craft propelling device provided by the invention;

FIG. 2 is a schematic rear view of the structure of FIG. 1;

FIG. 3 is a schematic structural diagram of a second embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 4 is a schematic structural diagram of a third embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 5 is a schematic structural diagram of a fourth embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 6 is a schematic structural diagram of a fifth embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 7 is a schematic structural diagram of a sixth embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 8 is a schematic structural diagram of a seventh embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 9 is a schematic structural diagram of an eighth embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 10 is a schematic structural diagram of a ninth embodiment of a centrifugal through-flow water craft propelling device;

FIG. 11 is a schematic structural diagram of an embodiment ten of a centrifugal through-flow water craft propelling device;

FIG. 12 is a schematic structural view of an eleventh embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 13 is a schematic structural diagram of a twelfth embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 14 is a schematic rear view of the structure of FIG. 13;

FIG. 15 is a schematic structural view of a thirteen embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 16 is a schematic structural diagram of a fourteenth embodiment of a propulsion device for a centrifugal through-flow water craft;

FIG. 17 is a schematic structural diagram of a fifteenth embodiment of a centrifugal through-flow water craft propulsion device;

FIG. 18 is a schematic diagram of a centrifugal flow-through device.

Reference numerals:

100 centrifugal impeller 101 axial external rotating shaft 200 centrifugal through-flow guide cylinder

201 water inlet 202 water jet 210 diversion structure

Suspension device rod of 220-communicated cylinder 230 mounting structure 240

241 shroud 242 fixed structure 243 holding structure

300 fluid secondary inlet 400 outlet flow negative pressure amplification structure 500 fluid outlet structure

600 fluid pressurization output structure 701 transmission shaft

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention,

it is to be understood that the embodiments described are only a few embodiments of the present invention, 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.

Fig. 1 is a schematic structural diagram of a first embodiment of a centrifugal through-flow water craft propelling device provided by the present invention, and as shown in fig. 1, the present invention provides a centrifugal through-flow water craft propelling device, which includes a propelling device body;

the propulsion device body comprises a first-stage fluid centrifugal cross-flow action device and at least one stage of fluid pressurization output structure body 600; the fluid centrifugal cross-flow action device comprises a centrifugal impeller 100 and a centrifugal cross-flow guide cylinder 200; a flow guide structure body 210 is arranged on the inner surface of the centrifugal through-flow guide cylinder body 200;

the fluid pressurization output structure 600 is an axial flow impeller; the centrifugal impeller 100 and the axial-flow impeller are jointly deployed in the centrifugal through-flow guide cylinder 200, and the axial-flow impeller is located behind the fluid output end of the guide structure 210;

the propulsion device body is provided with at least one water inlet 201 and one water outlet 202.

Specifically, when in use, the centrifugal impeller 100 rotates to suck water flow from the water inlet 201 to the centrifugal through-flow guide cylinder 200 in a centrifugal manner, the water flow is output in an axial flow manner, and stronger propulsive force is obtained after the re-energization of the fluid pressurization output structure 600.

As shown in FIGS. 1 to 17, the mechanism of the water inlet 201 and the water outlet 202 is as follows:

further, the water inlet 201 is of a flat structure, a diagonal structure or a flat structure.

Further, the water inlet 201 on the propulsion device body is transversely arranged at 90 degrees.

Further, as shown in fig. 3, the water inlet 201 of the propulsion device body is inclined.

Further, the water inlet 201 is arranged on the propulsion device body in an adjustable direction.

Further, the water jet 202 is in a flat configuration, a beveled configuration, or a flat configuration.

Further, the water jet 202 has a flat structure.

Further, as shown in fig. 5, the water jet 202 on the propulsion device body is arranged in a diagonally downward direction.

Further, the water jet 202 on the propulsion device body is oriented in a lateral direction.

Further, the water jet 202 can be directionally arranged on the propulsion device body.

Further, the barrel body of the centrifugal through-flow guide barrel 200 is provided with a fluid auxiliary inlet 300; the fluid secondary inlet 300 is communicated with the inner space of the centrifugal through-flow guide cylinder 200.

Further, the propulsion device body further comprises an outlet flow negative pressure amplification structure 400;

the outlet flow negative pressure amplification structure 400 is a housing including an outlet internal fluid channel and an outlet external fluid input channel; the outlet of the outlet end external fluid input channel is communicated with the outlet end internal fluid channel;

the outlet flow negative pressure amplification structure 400 is disposed at the fluid outlet end of the centrifugal flow-through guide cylinder 200.

When the outlet end flow negative pressure amplification structure is applied to the fluid action device, the fluid channel in the outlet end is a fluid flow guide channel of the fluid action device; when the fluid flowing inside the fluid action device flows at a high speed in the fluid channel in the outlet end, the fluid generates negative pressure relative to the inlet of the fluid input channel outside the outlet end at the inlet of the fluid input channel outside the outlet end, and under the action of the negative pressure, the outer fluid flows into the fluid channel in the outlet end from the inlet of the fluid channel outside the outlet end to participate in the flow of the inner fluid, so that the flow expansion is realized. In addition, the outlet flow negative pressure amplification structure and the flow guide body of the fluid action device can be of an integrally formed structure or a combined structure.

Further, the propulsion device body further comprises a fluid outlet structure 500;

the fluid outlet structure 500 is a funnel-shaped structure with a beam effect;

the fluid outlet structure 500 is disposed at the fluid outlet of the propulsion device body.

When the fluid outlet structure is applied to the fluid action device, the large opening of the fluid outlet structure is connected with the fluid output end of the fluid action device, and the small opening of the fluid outlet structure is an outlet; the fluid enters from the large opening of the fluid outlet end structure and flows out through the small opening, the flow velocity of the fluid is increased, and the phenomenon is a Venturi effect. In addition, the fluid outlet structure and the flow guiding body of the fluid action device can be of an integrally formed structure or a combined structure.

Further, a driving source is also included;

the driving source is arranged in the centrifugal through-flow guide cylinder 200; the driving source is in transmission connection with the centrifugal impeller 100 and the axial flow impeller which are arranged in the centrifugal through-flow guide cylinder 200.

Further, a driving source is also included;

the driving source is arranged at the water inlet 201 of the propulsion device body and is positioned outside the propulsion device body; the driving source is in transmission connection with a centrifugal impeller 100 and an axial flow impeller which are arranged in the centrifugal through-flow guide cylinder 200 through an axially external rotating shaft 101.

Further, the centrifugal impeller 100 and the axial flow impeller deployed in the centrifugal through-flow guide cylinder 200 are provided with transmission shafts 701 radially extending out of the cylinder;

the transmission shaft 701 is used for being in transmission connection with an external driving source.

Further, the propulsion device body further comprises a communication cylinder 220;

the communicating cylinder 220 is connected with the fluid output end of the propulsion device body.

Further, the communicating cylinder 220 is a straight pipe, a curved pipe or a folded pipe.

Further, a suspension device rod 240 which is rigid as a whole is arranged on the propulsion device body; the propulsion unit body is fixedly mounted to the hull via the integrally rigid suspension rod 240.

Further, the suspension device rod 240 is configured such that the outer body is a rigid structure, the inner body is a rotatable structure, the inner body is fixedly connected with the propulsion device body, the outer body is fixedly mounted with the marine body, the inner body is connected with a steering control member on the marine body, and the rotating control member is used for driving the propulsion device body to steer left and right or 360 degrees around a central axis of the suspension device rod 240.

Further, a shield 241 is provided at a connection portion between the inner body of the suspender rod 240 and the propulsion apparatus body; the inner body of the suspension device rod 240 and the outer shell of the propulsion device body are integrally formed, or the inner body of the suspension device rod 240 is connected with the propulsion device body through a fixed mounting structure;

the outer body of the suspension device rod 240 is provided with a fixed structural part 242; the fixed structural part 242 is used for fixedly mounting the outer body on the water navigation body; the outer body of the hanger bar 240 is provided with a supporting structure 243 to be mounted in cooperation with the fixed structure.

The fluid centrifugal cross-flow action device adopted by the invention is designed by referring to the following structure.

FIG. 18 is a schematic structural diagram of a first embodiment of a fluid centrifugal flow device provided by the present invention, and as shown in FIG. 18, the fluid centrifugal flow device provided by the first embodiment comprises a centrifugal impeller 100 and a centrifugal flow guide cylinder 200; a flow guide structure 210 is disposed on an inner surface of the centrifugal through-flow guide cylinder 200, and the centrifugal impeller 100 is disposed in an inner space of the flow guide structure 210.

In specific implementation, the flow guiding structure 210 may be composed of a plurality of flow guiding strips extending along the axial direction, or may be an integrally formed structure with a flow guiding function.

In specific implementation, the centrifugal through-flow guide cylinder 200 may be formed by combining the entire outer surface of the guide structure 210, or may be an independent outer sleeve structure. The independent outer sleeve structure can be prepared by winding rigid materials, flexible material structures or strip materials and preparing high polymer materials.

The fluid centrifugal through-flow action device provided by the first embodiment has the action principle that: the centrifugal impeller 100 is driven by a driving source to rotate, so that fluid is input from an inlet of the centrifugal through-flow guide cylinder 200; the fluid is acted by the centrifugal impeller 100, so that the fluid reaches the flow guide surface of the flow guide structure body 210 in the direction vertical to the axis of the centrifugal through-flow cylinder body 200; under the action of the structural flow guidance set by the flow guidance surface of the flow guidance structure 210, the fluid flow direction is changed from the direction vertical to the axial line of the centrifugal through-flow guidance cylinder 200 to flow around the axial line of the centrifugal through-flow guidance cylinder 200 or to flow parallel to the axial line of the centrifugal through-flow guidance cylinder 200, so that a fluid centrifugal through-flow action mode is obtained.

The turbine type fluid centrifugal through-flow action device can achieve the aims that fluid enters in a centrifugal mode and is output in an axial flow mode by means of the cooperative combination of the centrifugal impeller and the centrifugal through-flow guide cylinder, and the advantages of the axial flow fluid action device and the centrifugal fluid action device are combined more optimally. The centrifugal through-flow action device not only realizes series installation and use in the fluid passage, is beneficial to simplification and optimal design of the fluid passage, but also can improve the working efficiency of fluid drive, and can obviously reduce the volume of the fluid action device.

In the description of the present invention, it should be noted that the terms "central", "longitudinal", "axial", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element 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" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a centrifugation is run through flowing water boat advancing device which characterized in that: comprises a propulsion device body;

2. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the water inlet is of a flat structure, an inclined notch structure or a flat structure.

3. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the water inlet on the propulsion device body is oriented to be 90 degrees and transversely arranged.

4. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the water inlet on the propulsion device body is arranged in a direction inclined to the direction.

5. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the water jet is in a flat structure, an inclined cutting structure or a flat structure.

6. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the water jet is of a flat structure.

7. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the water spray opening on the propulsion device body is arranged in an obliquely downward direction.

8. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the water spray opening on the propulsion device body is arranged in the lateral direction.

9. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the water spraying opening is arranged on the propulsion device body in an adjustable direction.

10. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the cylinder body of the centrifugal through-flow guide cylinder body is provided with a fluid auxiliary inlet; the fluid auxiliary inlet is communicated with the inner space of the centrifugal through-flow guide cylinder.

11. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the propulsion device body also comprises an outlet end flow negative pressure amplification structure body;

12. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the propulsion device body also comprises a fluid outlet end structure body;

the fluid outlet structure is a funnel-shaped structure with beam action;

13. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the propulsion device body further comprises a fluid pressurization output structure body;

14. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: also includes a driving source;

15. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the centrifugal impeller and the axial flow impeller which are arranged in the centrifugal through-flow guide cylinder body are provided with transmission shafts which radially extend out of the cylinder body;

16. The centrifugal through-flow marine propulsion device according to claim 14 or 15, characterized in that: the driving source is an electric driving source or a hydraulic driving source.

17. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the propulsion device body also comprises a communicating cylinder body;

18. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the communicating cylinder body is a straight pipe, a bent pipe or a folded pipe.

19. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the propulsion device body is provided with a mounting structure; the propulsion device body is fixedly arranged on the marine body through the mounting structure.

20. The centrifugal through-flow water craft propulsion device according to claim 1, characterized in that: the propelling device body is provided with a suspension device rod which is rigid as a whole; the propulsion device body is fixedly arranged on the marine body through the suspension device rod which is rigid as a whole.

21. The centrifugal through-flow marine propulsion device of claim 20, wherein: the suspension device rod is set to be a rigid structure of an outer body, the inner body is a rotatable structure, the inner body is fixedly connected with the propulsion device body, the outer body is fixedly installed with the water navigation body, the inner body is connected with a steering control piece on the water navigation body, and the rotating control piece is used for driving the propulsion device body to steer left and right or 360 degrees around the central shaft of the suspension device rod.

22. The centrifugal through-flow marine propulsion device of claim 21, wherein: a protective cover is arranged at the connecting part of the inner body of the suspension device rod and the propulsion device body; the inner body of the suspension device rod and the outer shell of the propelling device body are integrally formed, or the inner body of the suspension device rod is connected with the propelling device body through a fixed mounting structure;

23. A ship to which the centrifugal through-flow marine propulsion device of claim 1 is applied.

24. A submarine employing the centrifugal through-flow water craft propulsion device of claim 1.