CN111846160A - Water spraying, air jetting and ventilating forward cavitation-assisted high-speed water inlet mechanism - Google Patents
Water spraying, air jetting and ventilating forward cavitation-assisted high-speed water inlet mechanism Download PDFInfo
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- CN111846160A CN111846160A CN202010522254.5A CN202010522254A CN111846160A CN 111846160 A CN111846160 A CN 111846160A CN 202010522254 A CN202010522254 A CN 202010522254A CN 111846160 A CN111846160 A CN 111846160A
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- water
- moving body
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- gas
- flow channel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 238000005507 spraying Methods 0.000 title abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 238000005273 aeration Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 210000003934 vacuole Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/14—Control of attitude or depth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The invention discloses a forward water spraying, air spraying and ventilating cavitation bubble assisted high-speed water inlet mechanism, which relates to the technical field of high-speed water inlet of a moving body and comprises the moving body; the water jet assembly is arranged in the moving body and comprises a liquid flow channel and a water delivery unit for providing a water source for the liquid flow channel, and the liquid flow channel is provided with a water jet hole arranged at the front end of the head of the moving body; and the air jet assembly is arranged in the moving body and comprises a first air flow channel and an air transmission unit for providing an air source for the first air flow channel, and the first air flow channel is provided with an air jet hole arranged at the front end of the head of the moving body. The invention can reduce the impact load of the moving body entering water, so that the impact load borne by the moving body can change stably and slowly, and the stability of the moving body is facilitated.
Description
Technical Field
The invention relates to the technical field of underwater vehicles, in particular to a forward water spraying, air spraying, ventilating and cavitation assisting high-speed water entering mechanism.
Background
In the process of implementing the invention, the inventor finds that in the prior art, at least the following problems exist in the current stage of underwater vehicles, when a moving body enters water at a high speed, the medium density is suddenly changed, so that an excessively high impact load is generated, and the excessively high impact load can cause the failure of instruments in the moving body and even cause the structural damage of the moving body. Therefore, the underwater vehicle can not only deviate from the trajectory, but also be directly broken or exploded, and how to solve the problem of underwater vehicle entering water becomes a hot point of research at home and abroad.
In order to solve the problem, the parachute is decelerated before entering water or a head protection hood is additionally arranged to enter water to destroy and absorb partial energy, so that the rapid water entering capability of a moving body is inevitably reduced, and meanwhile, the protection hood sometimes enters water and is not destroyed, so that the water entering failure is easily caused. In addition, whether the water enters at low speed or high speed, the ballistic instability caused by the cavitation collapse in the deceleration process after the water enters is existed. These problems are critical problems that need to be solved urgently during high-speed water entry, and are not solved at present.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the embodiment of the invention provides a forward water spraying, air spraying and ventilating cavity assisted high-speed water inlet mechanism, which can enable a moving body to enter water directly at a high speed without an excessive impact load.
The forward water spraying, air spraying and ventilating cavity assisted high-speed water inlet mechanism comprises a moving body; the water jet assembly is arranged in the moving body and comprises a liquid flow channel and a water delivery unit for providing a water source for the liquid flow channel, and the liquid flow channel is provided with a water jet hole arranged at the front end of the head of the moving body; and the air jet assembly is arranged in the moving body and comprises a first air flow channel and an air transmission unit for providing an air source for the first air flow channel, and the first air flow channel is provided with an air jet hole arranged at the front end of the head of the moving body.
In an alternative or preferred embodiment, a fairing is arranged at the front end of the moving body head, the air jet assembly further comprises a second air flow channel connected with the air transmission unit, the second air flow channel is provided with an air jet hole, the air jet hole is arranged on the side edge of the moving body head, and the air jet hole faces the inner side of the fairing.
In an alternative or preferred embodiment, the delivery unit comprises a water tank and a water pump, the liquid flow passage is connected to the water outlet of the water tank, and the water pump is installed in the liquid flow passage.
In an alternative or preferred embodiment, the liquid flow passage is provided with a liquid pressure regulating valve and a liquid flow meter.
In an alternative or preferred embodiment, the gas delivery unit comprises a gas cylinder, the first gas flow passage is connected to a gas delivery port of the gas cylinder, and the second gas flow passage is communicated with the first gas flow passage.
In an alternative or preferred embodiment, the first gas flow path is provided with a first gas pressure regulating valve and a first gas flow meter.
In an alternative or preferred embodiment, the second gas flow path is provided with a second gas pressure regulating valve and a second gas flow meter.
In an alternative or preferred embodiment, the system further comprises a control system, the water delivery unit is electrically connected with the control system, and the gas delivery unit is electrically connected with the control system.
Based on the technical scheme, the embodiment of the invention at least has the following beneficial effects: according to the technical scheme, the water jet assembly and the air jet assembly are arranged in the moving body, when the moving body enters water, the head of the moving body faces downwards, the air delivery unit is firstly opened in the first step, air jet is sprayed out from the air jet hole in the front end of the head of the moving body, a notch is torn on the water surface, the air jet can be beneficial to the stability of the moving body entering water attitude, the moving body starts to enter water, the water delivery unit is opened in the second step, water jet is sprayed out from the water jet hole in the front end of the head of the moving body to gradually form an open air cannon, the moving body is gradually wrapped by the air cannon to form a supercavity, the surface of the moving body is hardly stained with wet liquid, impact load and friction resistance are greatly reduced, and the moving body can smoothly immerse into water; in addition, the side edge of the head of the moving body is provided with an air jet hole, so that the air of the vacuole on the surface of the moving body can be supplemented when water jet is jetted, and the stable vacuole is formed. The invention can reduce the impact load of the moving body entering water, so that the impact load borne by the moving body can change stably and slowly, and the stability of the moving body is facilitated.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the embodiment of the present invention beginning to enter water;
fig. 3 is a schematic structural diagram of a water inlet process according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it is to be understood that the positional or orientational relationships, such as those indicated by center, longitudinal, lateral, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, axial, radial, circumferential, and the like, are based on the positional or orientational relationships shown in the drawings and are for convenience of description and simplicity of description only, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting.
In the description of the present invention, the meaning of several is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present number, and larger, lower, inner, etc. are understood as including the present number unless specifically defined otherwise. Furthermore, the descriptions of first and second are only for the purpose of distinguishing between technical features, and are not to be construed as indicating or implying relative importance or implying any number or order of indicated technical features.
In the description of the present invention, unless otherwise expressly limited, terms such as set, arranged, mounted, connected, fixed and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in the present invention in consideration of the detailed contents of the technical solutions.
In the description of the present invention, unless otherwise expressly limited, a first feature may be located on or below a second feature in direct contact with the second feature, or the first feature and the second feature may be in indirect contact via intermediate media. Also, a first feature may be directly above or obliquely above a second feature, or merely that the first feature is at a higher level than the second feature. A first feature may be directly below or obliquely below a second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, a forward water spray, air jet and aeration cavitation bubble assisted high-speed water inlet mechanism comprises a moving body 11, a water jet assembly and an air jet assembly. In addition, the tail of the moving body is provided with a tail nozzle 13, and the side edge of the tail is provided with a tail wing 12, which is the prior art and is not described again, and the head and tail directions of the moving body are as shown in fig. 1.
Wherein, the water jet assembly is arranged in the moving body 11, the water jet assembly comprises a liquid flow passage 23 and a water delivery unit for providing water source for the liquid flow passage 23, and the liquid flow passage 23 is provided with a water jet hole 26 arranged at the front end of the head of the moving body 11. Specifically, the delivery unit includes a water tank 21 and a water pump 22, a liquid flow passage 23 is connected to an outlet of the water tank 21, the water pump 22 is installed in the liquid flow passage 23, and the water pump 22 sprays water in the water tank 21 from a water jet hole 26 through the liquid flow passage 23. In addition, the liquid channel 23 is provided with a liquid pressure regulating valve 24 and a liquid flow meter 25, which can be used to adjust the speed and pressure of the water jet ejected from the water jet hole 26.
The air jet assembly is arranged in the moving body 11, the air jet assembly comprises a first air flow passage 32 and an air conveying unit for providing an air source for the first air flow passage 32, and the first air flow passage 32 is provided with an air jet hole 35 arranged at the front end of the head of the moving body 11. Specifically, the gas transmission unit includes a gas cylinder 31, a first gas flow passage 32 is connected to a gas transmission port of the gas cylinder 31, the gas cylinder 31 contains high-pressure gas, and the gas in the gas cylinder is ejected from an air jet hole 35 through the first gas flow passage 32. In addition, the first gas flow passage 32 is provided with a first gas pressure regulating valve 33 and a first gas flow meter 34, which can be used to adjust the speed and pressure of the air jet ejected from the air jet hole 35.
In this embodiment, the water jet holes 26 are provided in the center of the front end of the head of the moving body 11, two or more air jet holes 35 are provided, and the air jet holes 35 are circumferentially distributed around the center of the water jet holes 26.
Preferably, the system further comprises a control system 61, the water delivery unit is electrically connected with the control system 61, the gas delivery unit is electrically connected with the control system 61, the control system 61 can control the water pump 22, the liquid pressure regulating valve 24 and the liquid flow meter 25 in the water delivery unit, the control system 61 can control the first gas pressure regulating valve 33 and the first gas flow meter 34 in the gas delivery unit, and the specific setting of the control system 61 is the prior art and is not described again.
The specific working process of the moving body entering water at high speed is as follows:
s1, the moving body 11 flies from the air to a set height above the water surface, and is ready to enter the water.
Specifically, the air cylinder 31 is opened to supply air to each air jet hole 35, the air jet 41 is ejected from the air jet hole 35, the air jet 41 presses the water surface 51 to tear open the opening, and the moving body 11 starts to enter water, as shown in fig. 2, the moving body 11 smoothly enters water along the channel of the water surface opening, so that the moving body 11 avoids most impact loads on the front surface without speed reduction.
In addition, it is preferable that the head of the moving body 11 is provided with a corresponding pressure sensor, which can feed back to the control system 61 and perform calculation to adjust the flow rate of the first gas pressure regulating valve 33 and the first gas flow meter 34.
And S2, the moving body enters water.
Specifically, the water pump 21 is turned on, the water pump 22 ejects water in the water tank 21 from the water jet holes 26 through the liquid flow passage 23 to form hollow cavities, the moving body 11 is gradually wrapped by the hollow cavities to form super-hollow cavities, as shown in fig. 3, the surface of the moving body 11 is hardly wetted with liquid, the impact load and the frictional resistance are greatly reduced, and the moving body 11 can smoothly and smoothly immerse into water from air to water.
In addition, in some embodiments, the fairing 14 is disposed at the front end of the head of the moving body 11, the air jet assembly further includes a second air flow passage 36 connected to the air delivery unit, the second air flow passage 36 is communicated with the first air flow passage 32, the second air flow passage 36 has an air jet hole 39, the air jet hole 39 is disposed at the side of the head of the moving body 11, and the air jet hole 39 faces the inside of the fairing 14. The second gas flow passage 36 is provided with a second gas pressure regulating valve 37 and a second gas flow meter 38. In step S2, the air in the cavity on the surface of the moving body 11 can be supplemented by the air spouting holes 39 toward the inside of the cowl 14 and flowing in the aft direction along the inside of the cowl 14, which contributes to the formation of stable cavities. Accordingly, the second gas pressure regulating valve 37 and the second gas flow meter 38 can be controlled by the control system 61. Can guarantee through the air jet subassembly that it is stable to go into the vacuole behind the water, do not have the vacuole that goes into the water to burst and extinguish and lead to trajectory unstability and need not carry accessory mechanism work failures such as drogue and head safety cover and lead to the problem such as the failure of going into the water.
Compared with the moving body which freely enters water, the moving body has a great impact load, and the impact load borne by the moving body in the embodiment of the invention can stably and slowly change, so that the stability of the moving body is facilitated. Compared with a complete reverse water spraying and water entering mechanism, when the water entering process starts, although the water jet has large energy and can tear the water surface, the water entering posture of a moving body is greatly influenced, and the moving body can be instable under severe conditions. Compared with a complete reverse air injection water inlet mechanism, the moving body is torn on the water surface, and after the moving body enters water, the energy of air jet flow is insufficient and is not easy to cavitate, so that the speed of forming the ventilation cavitation bubbles is reduced.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. The utility model provides a mechanism of intaking is assisted to forward water spray jet-propelled cavitation of ventilating, its characterized in that: comprises that
A moving body (11);
a water jet assembly disposed in the moving body (11), the water jet assembly including a liquid flow passage (23) and a water delivery unit providing a water source to the liquid flow passage (23), the liquid flow passage (23) having a water jet hole (26) disposed at a front end of a head of the moving body (11); and
The air jet assembly is arranged in the moving body (11), the air jet assembly comprises a first air flow channel (32) and an air conveying unit for providing an air source for the first air flow channel (32), and the first air flow channel (32) is provided with an air jet hole (35) arranged at the front end of the head of the moving body (11).
2. The forward water jet, air jet, aeration cavity assisted high velocity water entry mechanism of claim 1 wherein: the air jet assembly is characterized in that a fairing (14) is arranged at the front end of the head of the moving body (11), the air jet assembly further comprises a second gas flow channel (36) connected with the gas transmission unit, the second gas flow channel (36) is provided with an air jet hole (39), the air jet hole (39) is arranged on the side edge of the head of the moving body (11), and the air jet hole (39) faces the inner side of the fairing (14).
3. The forward water jet, air jet and aeration cavitation assisted high velocity water entry mechanism of claim 1 or 2 wherein: the conveying unit comprises a water tank (21) and a water pump (22), the liquid flow channel (23) is connected to a water outlet of the water tank (21), and the water pump (22) is installed on the liquid flow channel (23).
4. The forward water jet, air jet and aeration cavitation-assisted high velocity water entry mechanism of claim 3 wherein: the liquid flow passage (23) is provided with a liquid pressure regulating valve (24) and a liquid flowmeter (25).
5. The forward water jet, air jet and aeration cavitation-assisted high velocity water entry mechanism of claim 2 wherein: the gas transmission unit comprises a gas bottle (31), the first gas flow channel (32) is connected to a gas transmission port of the gas bottle (31), and the second gas flow channel (36) is communicated with the first gas flow channel (32).
6. The forward water jet, air jet and aeration cavitation-assisted high speed water entry mechanism of claim 5 wherein: the first gas flow passage (32) is provided with a first gas pressure regulating valve (33) and a first gas flow meter (34).
7. The forward water jet, air jet and aeration cavitation-assisted high velocity water entry mechanism of claim 6 wherein: the second gas flow passage (36) is provided with a second gas pressure regulating valve (37) and a second gas flowmeter (38).
8. The forward water jet, air jet and aeration cavitation assisted high velocity water entry mechanism of claim 1 wherein: the water and gas combined device further comprises a control system (61), the water conveying unit is electrically connected with the control system (61), and the gas conveying unit is electrically connected with the control system (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010522254.5A CN111846160A (en) | 2020-06-10 | 2020-06-10 | Water spraying, air jetting and ventilating forward cavitation-assisted high-speed water inlet mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010522254.5A CN111846160A (en) | 2020-06-10 | 2020-06-10 | Water spraying, air jetting and ventilating forward cavitation-assisted high-speed water inlet mechanism |
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| CN111846160A true CN111846160A (en) | 2020-10-30 |
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| CN202010522254.5A Pending CN111846160A (en) | 2020-06-10 | 2020-06-10 | Water spraying, air jetting and ventilating forward cavitation-assisted high-speed water inlet mechanism |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820099A (en) * | 2021-09-15 | 2021-12-21 | 中山大学 | Laboratory simulation forward jet flow experiment mechanism based on motor acceleration |
| CN113932662A (en) * | 2021-10-29 | 2022-01-14 | 大连理工大学 | Adjustable cavitator structure with wing-shaped adjusting sheet for projectile entering water |
| CN114001601A (en) * | 2021-10-14 | 2022-02-01 | 哈尔滨工程大学 | Ventilation load reduction and posture adjustment device for high-speed cross-medium water inlet and adjustment method thereof |
| CN114013557A (en) * | 2021-10-29 | 2022-02-08 | 大连理工大学 | Cavity body air-compression type water-entering combined load-reducing device |
| CN114013614A (en) * | 2021-10-29 | 2022-02-08 | 大连理工大学 | Gas multichannel cyclic utilization's compound buffer of jet-propelled income water |
| CN114701599A (en) * | 2022-04-19 | 2022-07-05 | 吉林大学 | Buffer device for high-speed water entry of navigation body |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820099A (en) * | 2021-09-15 | 2021-12-21 | 中山大学 | Laboratory simulation forward jet flow experiment mechanism based on motor acceleration |
| CN114001601A (en) * | 2021-10-14 | 2022-02-01 | 哈尔滨工程大学 | Ventilation load reduction and posture adjustment device for high-speed cross-medium water inlet and adjustment method thereof |
| CN114001601B (en) * | 2021-10-14 | 2022-07-08 | 哈尔滨工程大学 | Ventilation load reduction and posture adjustment device for high-speed cross-medium water inlet and adjustment method thereof |
| CN113932662A (en) * | 2021-10-29 | 2022-01-14 | 大连理工大学 | Adjustable cavitator structure with wing-shaped adjusting sheet for projectile entering water |
| CN114013557A (en) * | 2021-10-29 | 2022-02-08 | 大连理工大学 | Cavity body air-compression type water-entering combined load-reducing device |
| CN114013614A (en) * | 2021-10-29 | 2022-02-08 | 大连理工大学 | Gas multichannel cyclic utilization's compound buffer of jet-propelled income water |
| CN114013614B (en) * | 2021-10-29 | 2022-12-09 | 大连理工大学 | Gas multichannel cyclic utilization's compound buffer of jet-propelled income water |
| CN114013557B (en) * | 2021-10-29 | 2022-12-09 | 大连理工大学 | Cavity body air-compression type water-entering combined load-reducing device |
| CN114701599A (en) * | 2022-04-19 | 2022-07-05 | 吉林大学 | Buffer device for high-speed water entry of navigation body |
| CN114701599B (en) * | 2022-04-19 | 2023-02-28 | 吉林大学 | Buffer device for high-speed water entry of navigation body |
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Application publication date: 20201030 |