阅读说明：本技术 一种新型喷水推进装置 (Novel water jet propulsion device ) 是由 张彦 谈晓龙 何润华 杜鹏 于 2019-11-21 设计创作，主要内容包括：本发明涉及一种新型喷水推进装置,包括进水系统和喷水系统,进水系统包括进水导管以及安装于进水导管内部的遮蔽罩、增压电机和增压涡轮,进水导管的前端为进水口,遮蔽罩固定安装于进水导管内部,增压电机固定安装于遮蔽罩中,并连接增压涡轮；喷水系统包括连接导管和导流环,连接导管用于联通进水导管与导流环,连接导管的前端与进水导管的后端连通,连接导管的后端与导流环前端固定连接,且连接导管的出水口紧贴导流环前端内壁,导流环的后端为喷出口。本发明装置利用康达效应,在装置尾部设计导流环,用以引导喷出射流,消除射流向四周扩散的现象,充分利用喷出射流,改变射流方向的同时产生推力,实现更加节能、环保、高效的新型推进。(The invention relates to a novel water-jet propulsion device, which comprises a water inlet system and a water-jet system, wherein the water inlet system comprises a water inlet conduit, a shielding cover, a booster motor and a booster turbine, wherein the shielding cover, the booster motor and the booster turbine are arranged in the water inlet conduit; the water spraying system comprises a connecting pipe and a flow guide ring, the connecting pipe is used for communicating the water inlet pipe with the flow guide ring, the front end of the connecting pipe is communicated with the rear end of the water inlet pipe, the rear end of the connecting pipe is fixedly connected with the front end of the flow guide ring, the water outlet of the connecting pipe is tightly attached to the inner wall of the front end of the flow guide ring, and the rear end of the flow guide ring is a spray outlet. The device utilizes the coanda effect, the tail part of the device is provided with the flow guide ring for guiding the ejected jet flow, the phenomenon that the jet flow spreads to the periphery is eliminated, the ejected jet flow is fully utilized, the jet flow direction is changed, meanwhile, the thrust is generated, and novel propulsion with more energy conservation, environmental protection and high efficiency is realized.)

1. A novel water jet propulsion device comprises a water inlet system and a water jet system, and is characterized in that,

the water inlet system comprises a water inlet guide pipe, a shielding cover, a supercharging motor and a supercharging turbine, wherein the shielding cover, the supercharging motor and the supercharging turbine are arranged in the water inlet guide pipe;

the water spraying system comprises a connecting pipe and a flow guide ring, the connecting pipe is used for communicating the water inlet pipe with the flow guide ring, the front end of the connecting pipe is communicated with the rear end of the water inlet pipe, the rear end of the connecting pipe is fixedly connected with the front end of the flow guide ring, the water outlet of the connecting pipe is tightly attached to the inner wall of the front end of the flow guide ring, and the rear end of the flow guide ring is a spray outlet.

2. The novel water jet propulsion device according to claim 1, further comprising a control system integrally arranged outside the water inlet conduit, wherein the control system comprises a sealed box fixedly arranged on a hull structure, and an autonomous controller, a directional stepping motor and a directional gear set arranged in the sealed box; the direction stepping motor is connected with the direction gear set, the direction gear set is connected with the water inlet conduit, and the autonomous controller is connected with the direction stepping motor; the autonomous controller drives the direction gear set to rotate by controlling the angular displacement of the direction stepping motor, and then controls the water inlet pipe to turn.

3. The novel water jet propulsion device of claim 2, wherein the autonomous controller is further connected to the booster motor, the autonomous controller controlling the rotational speed of the booster motor.

4. The novel water jet propulsion device of claim 2, wherein the control system further comprises a battery pack mounted within the sealed housing, the battery pack powering the autonomous controller.

5. The novel water jet propulsion device of claim 1, wherein the water inlet system further comprises a protective screen disposed at the water inlet to protect the water inlet.

6. The novel water jet propulsion device of claim 1, wherein the water inlet duct is wide in front and narrow in back, and has a streamline transition, and the rear part of the water inlet duct is constricted in a cylinder neck, so that the water flow is accelerated.

7. The novel water jet propulsion device according to claim 1, wherein the connecting pipes are uniformly distributed along the circumferential direction of the water inlet pipe; the number and the pipe diameter of the connecting pipes are set according to the highest speed of the water jet propulsion device.

8. The novel water jet propulsion device according to claim 1, wherein the deflector ring is an annular cylinder, the jet port is also annular, and the inner diameter of the deflector ring is gradually increased from the front end to the rear end, so that the coanda effect is utilized to ensure that water flow does not spread around when flowing out at a low speed but flows out along the wall surface.

9. The new water jet propulsion device according to claim 1, characterized in that the difference in the ring width of the leading and trailing ends of the deflector ring is set according to the maximum speed of the water jet propulsion device.

Technical Field

The invention relates to the technical field of marine propellers, in particular to a novel water jet propulsion device.

Background

A propeller is a device on a vessel that generates kinetic energy. The propeller is the most common propeller, and the propeller is arranged on a propulsion shaft below a waterline at the tail part of the boat, and the propulsion shaft is driven by a main machine to rotate together, so that water is sucked from a suction surface of a blade and discharged from a discharge surface, and the boat is pushed to advance by using the reaction force of the water.

In recent years, a water jet propeller is emerging. The water jet propeller is a propeller in which the jet part of the propulsion mechanism is immersed in water and the reaction force generated by the jet water flow is used to drive the ship to advance. The water jet propeller is composed of a water pump, a pipeline, a suction port, a nozzle and the like, can change the jet direction of water flow through the nozzle to realize the operation of a ship, has good operation performance, and particularly has good adaptability to a shallow water channel with a sediment bottom. However, the existing water jet propeller has the defects of lower efficiency than a propeller, the phenomenon that jet flows spread to the periphery, incomplete utilization of the jet flow, and the like.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a novel water-jet propulsion device aiming at the problems of higher energy consumption, low efficiency and serious noise pollution of the existing water-jet propulsion device, which utilizes the coanda effect, designs a flow guide ring at the tail part of the device to guide the ejected jet flow, eliminates the phenomenon that the jet flow spreads around, fully utilizes the ejected jet flow, saves energy, reduces noise and improves efficiency.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a novel water-jet propulsion device comprises a water inlet system and a water-jet system, wherein the water inlet system comprises a water inlet pipe, a shielding cover, a booster motor and a booster turbine, the shielding cover, the booster motor and the booster turbine are arranged in the water inlet pipe, the water inlet pipe is provided with a water inlet at the front end, the shielding cover is fixedly arranged in the water inlet pipe, and the booster motor is fixedly arranged in the shielding cover and connected with the booster turbine; the water spraying system comprises a connecting pipe and a flow guide ring, the connecting pipe is used for communicating the water inlet pipe with the flow guide ring, the front end of the connecting pipe is communicated with the rear end of the water inlet pipe, the rear end of the connecting pipe is fixedly connected with the front end of the flow guide ring, the water outlet of the connecting pipe is tightly attached to the inner wall of the front end of the flow guide ring, and the rear end of the flow guide ring is a spray outlet.

In the above scheme, the novel water jet propulsion device further comprises a control system, wherein the control system is integrally arranged outside the water inlet guide pipe and comprises a sealed box body fixedly arranged on the hull structure, and an autonomous controller, a direction stepping motor and a direction gear set which are arranged in the sealed box body; the direction stepping motor is connected with the direction gear set, the direction gear set is connected with the water inlet conduit, and the autonomous controller is connected with the direction stepping motor; the autonomous controller drives the direction gear set to rotate by controlling the angular displacement of the direction stepping motor, and then controls the water inlet pipe to turn.

In the scheme, the autonomous controller is further connected with the booster motor, and the rotational speed of the booster motor is controlled by the autonomous controller.

In the above scheme, the control system further comprises a battery pack installed in the sealed box body, and the battery pack supplies power to the autonomous controller.

In the above scheme, the water inlet system further comprises a protection filter screen arranged at the water inlet to protect the water inlet.

In the scheme, the water inlet guide pipe is wide in front and narrow in back and is in streamline transition, and the rear part of the water inlet guide pipe is contracted with the cylinder neck, so that water flow is accelerated.

In the above scheme, the connecting pipes are uniformly distributed along the circumferential direction of the water inlet pipe; the number and the pipe diameter of the connecting pipes are set according to the highest speed of the water jet propulsion device.

In the above scheme, the water conservancy diversion ring is the annular cylinder, the blowout mouth also is the annular, and the internal diameter of water conservancy diversion ring is followed front end to rear end grow gradually, is favorable to utilizing the coanda effect to make rivers can not disperse when the low-speed flows out, but flows out along pasting the wall.

In the above scheme, the difference between the widths of the front and rear ends of the deflector ring is set according to the highest speed of the water jet propulsion device.

The invention has the beneficial effects that:

1) the device utilizes the coanda effect, designs the water conservancy diversion ring at the device afterbody for the guide blowout efflux eliminates the efflux to the phenomenon of diffusion all around, and the thrust is produced in the time of make full use of blowout efflux change efflux direction, realizes energy-conserving, environmental protection, the novel propulsion of efficient more.

2) The device is preposed with the booster turbine, and the water inflow is greatly increased, so that the propelling efficiency is increased.

3) The device's pressure turbine is located inside the device, has avoided the turbine because of involving in the risk that the foreign matter stops working, and the full cover of pipe of intaking in addition for the security and the stability of the device obtain greatly promoting.

4) The device utilizes autonomic controller, accepts the input of external data, turns into the orientation of control propeller after handling, makes direction control more convenient, accurate.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic structural view of the novel water jet propulsion unit of the present invention;

FIG. 2 is a three-dimensional schematic view of the main structure of the novel water jet propulsion unit;

FIG. 3 is a schematic view of another angle of the novel water jet propulsion unit shown in FIG. 2;

FIG. 4 is a schematic diagram of a control system of the novel water jet propulsion unit shown in FIG. 2;

fig. 5 is a flow chart of the propulsion process of the novel water jet propulsion device.

In the figure: 10. a water intake system; 11. a water inlet conduit; 111. a water inlet; 12. protecting the filter screen; 13. a shielding cover; 14. a booster motor; 15. a booster turbine;

20. a water injection system; 21. connecting a conduit; 211. a water outlet; 22. a flow guide ring; 221. an ejection port;

30. a control system; 31. a battery pack; 32. an autonomous controller; 33. a direction stepping motor; 34. a direction gear set; 35. and sealing the box body.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 1-2, a novel water jet propulsion device according to a preferred embodiment of the present invention includes a water intake system 10, a water jet system 20, and a control system 30.

The water inlet system 10 comprises a water inlet guide pipe 11, a protective filter screen 12, a shielding cover 13, a booster motor 14 and a booster turbine 15, wherein the protective filter screen 12, the shielding cover 13, the booster motor 14 and the booster turbine 15 are sequentially arranged in the water inlet guide pipe 11 from front to back. The front end of the water inlet conduit 11 is a water inlet 111, and the protective filter screen 12 is installed at the water inlet 111 to protect the water inlet 111. The shield cover 13 is fixedly arranged inside the water inlet conduit 11 through a connecting piece, and the booster motor 14 is fixedly arranged in the shield cover 13 and is connected with the booster turbine 15. The shield cover 13 has good sealing performance and protects the booster motor 14.

The water spraying system 20 is integrally installed at the tail of the water inlet pipe 11, the water spraying system 20 comprises a connecting pipe 21 and a guide ring 22, the connecting pipe 21 is used for communicating the water inlet pipe 11 and the guide ring 22, the front end of the connecting pipe 21 is communicated with the rear end of the water inlet pipe 11, the rear end of the connecting pipe 21 is matched with and fixedly connected with the front end of the guide ring 22 in shape, a water outlet 211 of the connecting pipe 21 is tightly attached to the inner wall of the front end of the guide ring 22, and a rear port of the guide ring 22 is a spraying port 221.

The control system 30 is integrally installed outside the water inlet conduit 11, and the control system 30 comprises a sealed box 35 fixedly installed on the hull structure, and a battery pack 31, an autonomous controller 32, a direction stepping motor 33 and a direction gear set 34 which are installed in the sealed box 35. The battery pack 31 is a lithium battery for supplying energy to the autonomous controller 32. The direction stepping motor 33 is connected with a direction gear set 34, the direction gear set 34 is connected with the water inlet pipe 11, and the autonomous controller 32 is connected with the direction stepping motor 33. The autonomous controller 32 controls the angular displacement of the direction stepping motor 33 to rotate the direction gear set 34, thereby controlling the direction of the water inlet conduit 11. The steering mechanism has the advantages of simple structure, convenient operation and flexible steering. The autonomous controller 32 receives the input of external data, and converts the input into the direction of the control propeller after processing, so that the direction control is more convenient and accurate.

Further preferably, in the present embodiment, the autonomous controller 32 is further connected to the booster motor 14, and the rotation speed of the booster motor 14 is controlled by the autonomous controller 32.

Further preferably, in the present embodiment, the water inlet conduit 11 is wide in front and narrow in back, and has a streamline transition, and the rear portion of the water inlet conduit constricts the cylinder neck, so as to accelerate the water flow.

Preferably, in this embodiment, there are three connecting conduits 21, which are uniformly distributed along the circumferential direction of the water inlet conduit 11. In other embodiments, the number and diameter of the connecting conduits 21 are set according to the highest speed of the water jet propulsion device, the greater the number of connecting conduits 21, the smaller the diameter of the conduits, the greater the speed of the propulsion device, and vice versa.

Further preferably, in this embodiment, the diversion ring 22 is an annular cylinder, the outlet 221 is also annular, and the inner diameter of the diversion ring 22 gradually increases from the front end to the rear end, which is beneficial to utilizing the coanda effect to ensure that the water flow does not spread when flowing out at a low speed, but flows out by adhering to the wall surface. The difference in the width of the deflector ring 22 is set according to the maximum speed of the water jet propulsion system, and the larger the difference in the width of the deflector ring, the smaller the speed of the propulsion system.

The working principle of the novel water jet propulsion device is as follows:

s1, the booster motor 14 drives the booster turbine 15 to form negative pressure, so that water passes through the protective filter screen 12 and the shielding cover 13 from the water inlet 111 in sequence and enters the water inlet guide pipe 11.

S2, the autonomous controller 32 controls the water inlet speed by controlling the rotation speed of the booster motor 14, and controls the direction of the water inlet conduit 11, the deflector ring 22 and the jet orifice 221 by controlling the rotation direction and the rotation speed of the direction stepping motor 33, thereby controlling the speed and the direction of the jet flow.

S3, the water flow entering the water inlet conduit 11 passes through the cylinder neck of which the tail part is gradually contracted, and the flow speed is further increased.

S4, the accelerated water flows to the diversion ring 22 through the connecting conduit 21, and the water is guided by the diversion ring 22 to leave the original flow direction by utilizing the coanda effect, and instead flows along the surface of the diversion ring 22 and is ejected from the ejection port 221 to generate thrust.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.