CN220562932U - Tandem type air-water mixing propulsion device - Google Patents

Abstract

The utility model discloses a series-connected gas-water mixing propulsion device, which includes a water inlet assembly, an air inlet assembly and a pressurizing assembly. The water inlet assembly is used to provide a channel for water flow through, and the air inlet assembly is used to input gas. The gas pushes the water to spray in the opposite direction where the operation is required, thereby providing operation power. The booster component is used to increase the flow rate of the gas, thus enhancing the operation power. This utility model's series-connected air-water mixing propulsion device adopts a power propulsion method that combines a water inlet assembly and an air inlet assembly. The air inlet assembly is used to generate high-speed flowing gas and push the water flow to generate thrust, thereby providing power. Compared with the existing The use of mechanical impeller propulsion in technology requires consideration of the service life of the impeller. This propulsion method is stable and reliable, and the operating speed can exceed the maximum speed of mechanical impeller propulsion.

Description

Series air-water mixing propulsion device

Technical field

The utility model relates to the technical field of ship power propulsion, and specifically to a series-connected air-water mixing propulsion device.

Background technique

In recent years, with the rapid development of structural optimization design and drag reduction technology, the sailing speed of high-performance ships has been greatly improved, which has also brought new problems and challenges. Running performance is poor. Because conventional propellers control the operating speed of ships within 50 knots, when the propeller speed exceeds the corresponding speed of 50 knots, the high-speed rotational friction between the blades and the water flow will produce liquid cavitation. Due to the influence of liquid cavitation, the This causes the thrust and propulsion efficiency of the turbine machinery to decrease rapidly, and cavitation will cause severe cavitation erosion of the blades, resulting in a reduction in the service life of the blades. Therefore, it has become an urgent need to develop underwater propulsion devices suitable for high-speed operating environments.

Utility model content

In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a series-connected air-water mixing propulsion device, aiming to solve the conventional propeller operation propulsion mode in the prior art, whose efficiency is affected by the interaction between the propeller and the water flow. The limitation of cavitation phenomenon is that when the speed exceeds a certain level, cavitation erosion caused by cavitation will cause serious damage to the blades and reduce the service life of the impeller machinery. Therefore, the operating speed can only be maintained within a certain threshold range.

This utility model adopts the following technical solutions to achieve:

Series air-water mixing propulsion device, including,

A water inlet assembly, which includes a first pipe connected end to end, a plurality of second pipes and a third pipe with different inner diameters;

An air inlet assembly is located above the water inlet assembly. The air inlet assembly is connected with the water inlet assembly. The air inlet assembly includes an air inlet pipe opening and an air collection piece. The lower end of the air inlet pipe opening is arranged on each pipe of the water inlet assembly. on the air inlet pipe, the gas collecting member is arranged at the upper end of the air inlet pipe opening for collecting gas and sucking it into the air inlet pipe mouth; and

A pressurizing component is provided between the water inlet components and is used to compress gas to increase the flow rate. The pressurizing component includes a first pressurizing component and a second pressurizing component. The first pressurizing component is disposed between the first pipe and the second pressurizing component. Between the second pipes, between the plurality of second pipes, between the second pipes and the third pipes, both ends of the first pressure increasing member are connected with the corresponding pipes, and the first pressure increasing member is connected to the second pressure increasing member. The pressure piece is connected to the air intake pipe, and the second pressurizing piece is connected to the intake pipe opening.

In order to optimize the above technical solutions, specific measures taken also include:

Further, the diameter of the first pipe decreases uniformly from an end far away from the connected second pipe to an end close to the second pipe, and the diameters of the plurality of second pipes decrease sequentially according to the direction of the water flow. The third pipe is trumpet-shaped, and the third pipe becomes smaller from an end far away from the connected second pipe to an end close to the second pipe.

Further, the inner walls of the first pipe, the second pipe and the third pipe are all provided with spiral flow channels, and the acceleration direction of the spiral flow channels is consistent with the direction of the water flow.

Further, the first supercharging component includes a supercharging nozzle, the inner diameter of the supercharging nozzle has a uniform gradient structure, and the inner diameters at both ends of the supercharging nozzle are consistent with the size of the nozzles of the corresponding connected pipes. , The inner wall of the booster nozzle is provided with a plurality of injection openings with inclined angles, and the inclination direction of the injection openings is toward the direction of the water flow.

Further, the second pressurizing component includes a heating chamber, the heating chamber is an annular structure, the heating chamber is arranged on the outer ring of the pressurizing nozzle, and the heating component is provided on the inner wall of the heating chamber.

Further, the heating element includes a protective sheath and a high-temperature resistance alloy wire. The protective sheath is disposed on the inner wall of the pressurized air passage, and the high-temperature resistance alloy wire is disposed in the protective sheath.

Further, a hollow connecting seat is provided at the lower end of the air inlet pipe opening, and the connecting seat is horizontally rotatably connected to the second pressurizing member. The air inlet pipe opening and the connecting seat are connected to the second pressurizing member. The air inlet pipe The mouth has a uniformly variable diameter structure with a larger upper part and a smaller lower part.

Further, a connecting seat is provided at the lower end of the air inlet pipe, and the lower end of the connecting seat is connected with the second pressurizing component. A circular slide is provided at the top of the connecting seat, and positioning holes are provided at intervals in the slide. The lower end of the air inlet pipe is provided with a groove, and a ball is provided in the groove. A spring is provided between the ball and the groove. The spring can expand and contract in the groove. The spring holds the ball against the positioning position. inside the hole.

Further, an air collecting hood is provided at the upper end of the air inlet opening, and the air collecting hood has a quarter-arc structure.

Further, the air collecting part includes a connecting shaft, a bracket and an air collecting fan. The connecting shaft is arranged at the upper end of the air inlet pipe. The bracket is sleeved on the connecting shaft. The air collecting fan is arranged on the bracket. The air suction port of the air collecting fan faces the side of the upper end of the air inlet pipe opening without the air collecting hood.

Beneficial effects of this utility model:

This utility model's series-connected air-water mixing propulsion device adopts a power push method that combines a water inlet assembly and an air inlet assembly. The air inlet assembly is used to generate high-speed flowing gas, which pushes the water flow to generate thrust, thus providing power. Compared with the existing The use of mechanical impeller propulsion in technology requires consideration of the service life of the impeller. This propulsion method is stable and reliable, and the operating speed can exceed the maximum speed of mechanical impeller propulsion.

At the same time, the pressurizing component of this application can perform double pressurization, heating and pressurizing the gas respectively, further increasing the speed of the air flow. At the same time, in conjunction with the spiral structure inside the pipe in the water inlet component, the water flow is sprayed and propelled in a spiral manner. The jet kinetic energy of the water flow is further improved.

Description of drawings

Figure 1 is an overall structural diagram of the serial gas-water mixing propulsion device provided by the utility model.

FIG. 2 is a cross-sectional view of FIG. 1 .

Fig. 3 is a cross-sectional view of the connection relationship between the boosting assembly and the connecting seat in Fig. 1;

FIG. 4 is a partial structural view of the connecting seat in FIG. 3 .

Figure 5 is a schematic structural diagram of part A in Figure 2.

Fig. 6 is a schematic structural diagram of the air collecting member in Fig. 2.

Reference signs:

Water inlet assembly 10, first pipe 11, second pipe 12, third pipe 13, spiral flow channel 14, air inlet assembly 20, air inlet pipe opening 21, groove 211, air collecting part 22, connecting shaft 221, bracket 222 , air collecting fan 223, connecting seat 23, circular slide 231, positioning hole 232, air collecting cover 24, ball 25, spring 26, boosting assembly 30, boosting pipe port 31, air channel 311, injection port 312, Heating chamber 32, heating element 33, protective cover 331, high temperature resistance alloy wire 332, power cabin 40.

Detailed ways

In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings.

Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described here. Those skilled in the art can implement the utility model without violating the connotation of the present utility model. Similar generalizations are made under different circumstances, so the present utility model is not limited by the specific embodiments disclosed below.

Referring to Figure 1-2, an overall structural diagram of a series-connected air-water mixing propulsion device is provided. The series-connected air-water mixing propulsion device includes a water inlet assembly 10, an air inlet assembly 20 and a boosting assembly 30. The water inlet assembly 10 is used to provide a channel for the water to flow through. The air inlet assembly 20 is used to input gas, and uses the gas to push the water to spray in the opposite direction required to operate, thereby providing operating power. The booster assembly 30 is used to increase the flow rate of the gas. , thereby enhancing operating power. This device is installed in the power cabin 40 of the ship and aircraft.

Referring to Figures 1-6, the water inlet assembly 10 includes a first pipe 11 connected end to end, a plurality of second pipes 12 and a third pipe 13 with different inner diameters; the first pipe 11, the second pipe 12 and the third pipe 13 The connections are arranged sequentially according to the direction of the water flow. The diameter of the first pipe 11 becomes evenly smaller from the end far away from the connected second pipe 12 to the end close to the second pipe 12. The second pipe 12 is a pipe with a uniform inner diameter. The inner diameters of the second pipes 12 are different in size. The pipe diameters of the second pipes 12 are successively reduced according to the direction of the water flow. The third pipe 13 is in the shape of a trumpet. The third pipe 13 is away from the connected second pipe. One end of 12 becomes smaller toward the end closer to the second pipe 12. Water flows from the first pipe 11, and then sequentially enters the second pipe 12 whose pipe diameter gradually decreases. As the pipe diameter becomes smaller, the flow rate of the water increases step by step. Finally, the trumpet-shaped large diameter of the third pipe 13 can increase the spray area of the water flow.

In order to optimize the running speed of the water flow, spiral flow channels 14 are provided on the inner walls of the first pipe 11, the second pipe 12 and the third pipe 13, and the acceleration direction of the spiral flow channel 14 is consistent with the direction of the water flow, so that the water flow flows in a spiral direction. The flow jet further improves the jet kinetic energy of the water flow.

Referring to Figures 2-6, the air inlet assembly 20 is located above the water inlet assembly 10. The air inlet assembly 20 is connected with the water inlet assembly 10. The air inlet assembly 20 includes an air inlet pipe opening 21 and an air collecting member 22. The air inlet pipe opening The lower end of 21 is disposed on each pipe of the water inlet assembly 10, and the gas collecting member 22 is disposed on the upper end of the air inlet pipe opening 21 for collecting and inhaling gas into the air inlet pipe opening 21.

The lower end of the air inlet pipe opening 21 is provided with a hollow connecting seat 23. The connecting seat 23 is horizontally rotatably connected to the boosting assembly 30. The boosting assembly 30 is arranged between adjacent pipes in the water inlet assembly 10. The air inlet opening 21 and the connecting seat 23 is connected with the supercharging assembly 30, so that the gas is input into the supercharging assembly 30 from the air inlet nozzle 21. The air inlet nozzle 21 has a uniformly variable diameter structure with a large top and a small bottom. An air collecting cover 24 is provided at the upper end of the air inlet nozzle 21. The air collecting hood 24 has a quarter-arc structure. The air collecting part 22 includes a connecting shaft 221, a bracket 222 and an air collecting fan 223. The connecting shaft 221 is provided at the upper end of the air inlet pipe 21, and the bracket 222 is sleeved on the connecting shaft 221. , the air collecting fan 223 is arranged on the bracket 222, and the air suction port of the air collecting fan 223 faces the side of the upper end of the air inlet pipe opening 21 without the air collecting cover 24. During installation, adjust and set according to the size and direction of the air inlet pipe opening 21. The angle of the air collecting fan 223 and the large diameter at the upper end of the air inlet pipe opening 21 facilitate the collection of more gas. As the diameter of the air inlet pipe opening 21 gradually decreases, the flow rate of the gas increases.

Considering that there are various changes in the direction and wind speed during actual sailing, in order to collect gas more efficiently, a connecting seat 23 is provided at the lower end of the air inlet pipe 21. The lower end of the connecting seat 23 is connected to the second pressurizing member, and the top of the connecting seat 23 is provided There is a circular slide 231, and positioning holes 232 are provided at intervals in the slide. The hole depth of the positioning holes 232 is greater than the groove depth of the circular slide 231. A groove 211 is provided at the lower end of the air inlet pipe 21, and a ball is provided in the groove 211. 25. A spring 26 is provided between the ball 25 and the groove 211. The spring 26 can expand and contract in the groove 211. Under normal working conditions, the spring 26 presses the ball 25 against the positioning hole 232. When the wind direction changes, the direction of the air inlet pipe opening 21 can be adjusted as needed. At this time, in the adjustment state, the air inlet pipe opening 21 is rotated relative to the connecting seat 23. At this time, the ball 25 moves from the positioning hole 232 to the slideway. During the process, the spring 26 is compressed, and the ball 25 partially contracts into the groove 211, and then the ball 25 enters the slideway and slides. When it is adjusted to the required position and direction, the ball 25 is pressed against the corresponding positioning hole 232 by the spring 26. Inside. Thus, the direction adjustment of the air intake pipe opening 21 is completed. The number and position of the positioning holes 232 are set according to specific needs, and there are no specific restrictions in this solution.

As shown in Figure 3-6, the air flow rate provided by the air inlet assembly 20 alone cannot meet the further high-speed propulsion requirements. Therefore, a booster assembly 30 is provided between the water inlet assemblies 10 to compress the gas to increase the flow rate and boost pressure. There are multiple assemblies 30, and each pressurizing assembly 30 includes a first pressurizing component and a second pressurizing component. The first pressurizing member is disposed between the first pipe 11 and the second pipe 12, between the plurality of second pipes 12, and between the second pipe 12 and the third pipe 13. Both ends of the first pressurizing member are connected to the corresponding The pipelines are connected, the first supercharging part is connected with the second supercharging part, the second supercharging part is connected with the intake pipe port 21, the first supercharging part includes the supercharging pipe port 31, and the inner diameter of the supercharging pipe port 31 is uniformly gradient. The structure is used for water to pass through. The inner diameters of both ends of the booster nozzle 31 are consistent with the sizes of the nozzles of the corresponding connected pipes. A hollow air passage 311 is provided inside the booster nozzle 31. The inner wall of the booster nozzle 31 is provided with There are multiple spray openings 312 with inclined angles. The spray openings 312 are connected with the air passage 311 , and the inclined direction of the spray openings 312 is toward the direction of the water flow. The second pressurizing component includes a heating chamber 32. The heating chamber 32 is an annular structure. The heating chamber 32 is arranged on the outer ring of the pressurizing nozzle 31. A heating element 33 is provided on the inner wall of the heating chamber 32. The heating element 33 includes a protective sheath 331 and a high-temperature heating element. The resistance alloy wire 332 and the protective sheath 331 are arranged on the inner wall of the pressurized air channel 311. The high-temperature resistance alloy wire 332 is arranged in the protective sheath 331. One end of the heating cavity 32 is connected with the connection base 23, and the heating cavity 32 body is away from the connection base 23. One end is connected to the boosting nozzle 31 , so that the air flow is boosted from the heating chamber 32 and then input into the air passage 311 of the boosting nozzle 31 .

The working principle of the booster assembly 30 is as follows: first, the airflow is input from the air inlet nozzle 21 into the heating chamber 32 in the air inlet assembly 20, and the airflow flows along the annular channel of the heating chamber 32. During the flow process, the high-temperature resistance alloy wire 332 reacts with the gas. Heating is performed to increase the running speed of the gas, and then the heated gas is input into the booster nozzle 31 for compression, and the high-temperature gas is ejected through multiple injection ports 312 to push the water flow, and the generated reverse thrust promotes navigation.

The above are only embodiments of the present invention. Common knowledge such as the specific structures and characteristics of the solutions are not described in detail here. Those of ordinary skill in the art are aware of all common knowledge in the technical field to which the invention belongs before the filing date or priority date. Technical knowledge, being able to know all the existing technologies in the field, and having the ability to apply conventional experimental methods before that date. Persons of ordinary skill in the field can, under the inspiration given by this application, combine their own abilities to perfect and implement this plan, Some typical well-known structures or well-known methods should not be an obstacle for those of ordinary skill in the art to implement the present application. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the protection scope of the present invention and will not affect the implementation of the present invention. effectiveness and patented practicality. The scope of protection claimed in this application shall be based on the content of the claims, and the specific implementation modes and other records in the description may be used to interpret the content of the claims.

Claims (10)

1. Series-connected air-water mixing propulsion device, characterized by: including, A water inlet assembly, which includes a first pipe connected end to end, a plurality of second pipes and a third pipe with different inner diameters; An air inlet assembly is located above the water inlet assembly. The air inlet assembly is connected with the water inlet assembly. The air inlet assembly includes an air inlet pipe opening and an air collection piece. The lower end of the air inlet pipe opening is arranged on each pipe of the water inlet assembly. on the air inlet pipe, the gas collecting member is arranged at the upper end of the air inlet pipe opening for collecting gas and sucking it into the air inlet pipe mouth; and A pressurizing component is provided between the water inlet components and is used to compress gas to increase the flow rate. The pressurizing component includes a first pressurizing component and a second pressurizing component. The first pressurizing component is disposed between the first pipe and the second pressurizing component. Between the second pipes, between the plurality of second pipes, between the second pipes and the third pipes, both ends of the first pressure increasing member are connected with the corresponding pipes, and the first pressure increasing member is connected to the second pressure increasing member. The pressure piece is connected to the air intake pipe, and the second pressurizing piece is connected to the intake pipe opening. 2. The series-connected gas-water mixing propulsion device according to claim 1, characterized in that: the diameter of the first pipe decreases uniformly from an end far away from the connected second pipe to an end close to the second pipe. , the pipe diameters of the plurality of second pipes are sequentially reduced according to the direction of the water flow, the third pipe is trumpet-shaped, and the third pipe is from an end far away from the connected second pipe to an end close to the second pipe. become smaller. 3. The serial gas-water mixing propulsion device according to claim 2, characterized in that: the inner walls of the first pipe, the second pipe and the third pipe are all provided with spiral flow channels, and the spiral flow channels are The direction of acceleration is consistent with the direction of water flow. 4. The series-connected gas-water mixing propulsion device according to claim 1, characterized in that the first pressurizing member includes a pressurizing nozzle, and the inner diameter of the pressurizing nozzle has a uniform gradient structure, and the The inner diameters of both ends of the booster nozzle are consistent with the sizes of the nozzles of the corresponding connected pipes. A hollow air passage is provided inside the booster nozzle. The inner wall of the booster nozzle is provided with multiple inclination angles of jets. The jet port is connected to the air passage, and the inclination direction of the jet port is toward the direction of the water flow. 5. The series-connected gas-water mixing propulsion device according to claim 4, characterized in that the second pressurizing member includes a heating chamber, the heating chamber is an annular structure, and the heating chamber is arranged in the pressurizing pipe. The outer ring of the opening is provided with a heating element on the inner wall of the heating cavity. 6. The series-connected gas-water mixing propulsion device according to claim 5, characterized in that the heating element includes a protective sleeve and a high-temperature resistance alloy wire, the protective sleeve is arranged on the inner wall of the pressurized air passage, and the The high temperature resistance alloy wire is set in the protective sheath. 7. The series-connected air-water mixing propulsion device according to claim 5, characterized in that the lower end of the air inlet pipe is provided with a hollow connecting seat, and the connecting seat is horizontally rotatably connected to the second pressurizing member, so The air inlet pipe opening and the connecting seat are connected with the second supercharging component, and the air inlet pipe opening has a uniformly variable diameter structure with a larger upper part and a smaller lower part. 8. The series-connected air-water mixing propulsion device according to claim 7, characterized in that: a connecting seat is provided at the lower end of the air inlet pipe, and the lower end of the connecting seat is connected with the second pressurizing member. The connecting seat A circular slide is provided at the top, positioning holes are provided at intervals in the slide, a groove is provided at the lower end of the air inlet pipe, a ball is provided in the groove, and a spring is provided between the ball and the groove. The spring is telescopic in the groove, and the spring resists the ball in the positioning hole. 9. The series-connected air-water mixing propulsion device according to claim 8, characterized in that: an air collecting hood is provided at the upper end of the air inlet pipe, and the air collecting hood has a quarter arc structure. 10. The series-connected air-water mixing propulsion device according to claim 9, characterized in that: the air collecting part includes a connecting shaft, a bracket and an air collecting fan, the connecting shaft is arranged at the upper end of the air inlet pipe, and the The bracket is sleeved on the connecting shaft, and the air collecting fan is arranged on the bracket. The suction port of the air collecting fan faces the side of the upper end of the air inlet pipe without the air collecting hood.