CN114604432A - Pulse discharge type bubble impact force generator for deicing - Google Patents
Pulse discharge type bubble impact force generator for deicing Download PDFInfo
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- CN114604432A CN114604432A CN202210506505.XA CN202210506505A CN114604432A CN 114604432 A CN114604432 A CN 114604432A CN 202210506505 A CN202210506505 A CN 202210506505A CN 114604432 A CN114604432 A CN 114604432A
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- impact force
- liquid
- working medium
- liquid working
- deicing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
- B64D15/16—De-icing or preventing icing on exterior surfaces of aircraft by mechanical means
- B64D15/163—De-icing or preventing icing on exterior surfaces of aircraft by mechanical means using electro-impulsive devices
Abstract
The invention is suitable for the technical field of aircraft deicing and provides a pulse discharge type bubble impact force generator for deicing, which comprises a bubble impact force exciter, wherein the bubble impact force exciter comprises a flexible closed cavity and a liquid working medium, the bubble impact force exciter also comprises an electrode discharge device, the electrode discharge device comprises two discharge electrodes and a pulse power supply, the positive discharge electrode and the negative discharge electrode are both arranged in the flexible closed cavity, the liquid working medium is arranged in the flexible closed cavity and is directly contacted with the two discharge electrodes, the positive discharge electrode and the negative discharge electrode are arranged at intervals, and the liquid working medium is filled between the two discharge electrodes. The invention uses the electric arc discharge to heat the liquid working medium, the heating is quicker, when the liquid working medium is vaporized, the speed of generating high-temperature and high-pressure bubbles is accelerated, the generated small bubbles are obviously reduced, and the large bubbles generated by the electric arc discharge can enable the flexible wall to expand outwards quickly, thereby improving the impact force of the bubble impact force exciter.
Description
Technical Field
The invention relates to the technical field of aircraft deicing, in particular to a pulse discharge type bubble impact force generator for deicing.
Background
When the airplane flies in a low-temperature cloud layer, the icing phenomenon can occur on the windward side of the airplane, and the flying safety is influenced.
Patent publication No. CN113415428B discloses a thermal foaming formula impact force generator for deicing, including the impact force exciter, the impact force exciter includes flexible airtight chamber, electric heater and liquid working medium, and during operation, the liquid working medium in the flexible airtight chamber of powerful heater rapid heating, liquid working medium vaporization produces high temperature high pressure bubble to outwards expand flexible airtight chamber, produce the impact force, exert the impact force on the aircraft skin again, thereby realize the vibration deicing to the aircraft skin. During use, it has been found that the deicing capacity of such thermal foam impact generators is often unsatisfactory, mainly because the impact force of such thermal foam impact generators is still unsatisfactory.
Disclosure of Invention
The invention aims to provide a pulse discharge type bubble impact force generator for deicing, which is used for solving the problem that the impact force of the thermal foaming type bubble impact force generator is small due to slow bubble generation.
In the thermal foaming impact force generator in the prior art, because the liquid working medium is heated in an electric heating mode, the heating speed is low, the generated bubbles are slow, and too many small bubbles are generated, so that the impact force generated by the bubbles is small. Therefore, the invention provides that the liquid working medium is heated by adopting a pulse discharge mode, the liquid working medium can be quickly heated by the pulse discharge, the rate of generating high-temperature and high-pressure bubbles is accelerated, and the generated small bubbles are obviously reduced, so that larger impact force is generated, and the deicing capability of the thermal foaming type impact force generator is improved.
The invention is realized by the following technical scheme:
the utility model provides a pulse discharge formula bubble impact force generator for deicing, includes bubble impact force exciter, bubble impact force exciter includes flexible airtight cavity and liquid working medium, bubble impact force exciter still includes electrode discharge apparatus, electrode discharge apparatus includes discharge electrode and pulse power supply, discharge electrode is connected with pulse power supply electricity, discharge electrode sets up in the flexible airtight cavity, liquid working medium set up in flexible airtight cavity and with discharge electrode direct contact.
Further, an exhaust port is arranged on the flexible closed cavity.
Furthermore, a fluid infusion port is arranged on the flexible closed cavity.
Further, a liquid working medium supplementing assembly is arranged at the liquid supplementing opening.
Furthermore, the liquid working medium supplementing assembly comprises a liquid pump and a liquid storage device, wherein the liquid outlet end of the liquid pump is communicated with the liquid supplementing port, and the liquid inlet end of the liquid pump is communicated with the liquid storage device.
Further, a one-way valve is arranged at the liquid inlet of the liquid storage device.
Further, the air exhaust port is communicated with the liquid inlet of the liquid storage device.
Further, the flexible closed cavity is completely filled with the liquid working medium.
Further, the liquid working medium is selected from a liquid working medium with a low breakdown voltage.
Further, the liquid working medium is saline water.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. compared with heating by an electric heating wire, the electric arc discharge heating has the advantages that the heating is quicker, when the liquid working medium is vaporized, the rate of generating high-temperature and high-pressure bubbles is increased, the small bubbles are obviously reduced, the large bubbles generated by the electric arc discharge can enable the flexible wall to expand outwards quickly, and the impact force of the bubble impact force exciter is improved.
2. When the electric arc discharges to vaporize the liquid working medium, the electric arc can electrolyze part of water in the liquid working medium to generate electrolytic gas, and after the electrolytic gas is electrolyzed, the air pressure in the flexible sealed cavity can be increased and the quantity of high-temperature and high-pressure bubbles can be increased, so that the expansion speed of the flexible wall is increased, and the impact force of the bubble impact force exciter is improved.
3. After the electric arc discharges to electrolyze water, the generated gas cannot be liquefied again, and the gas generated during electrolysis can be discharged in time through the exhaust port, so that the safety of the device is improved; after the electric arc discharges and electrolyzes water, the liquid working medium in the flexible closed cavity can be reduced, the reduced liquid working medium is not completely filled in the flexible closed cavity, and the vibration effect generated by bubble impact can be weakened.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:
FIG. 1 is a schematic structural view of a bubble impact exciter and mounting bracket of the present invention;
FIG. 2 is a schematic view of the internal structure of a flexible sealed chamber;
FIG. 3 is a schematic structural diagram of a liquid working medium supplement assembly;
reference numbers and corresponding part names in the drawings:
10-bubble impact force exciter, 11-flexible closed cavity, 111-flexible wall side, 112-rigid wall side, 113-exhaust port,
114-a liquid supplementing port, 12-a discharge electrode, 13-liquid working medium, 20-a liquid working medium supplementing assembly, 21-a liquid pump, 22-a liquid storage device and 23-a one-way valve.
Detailed Description
Aspects of the present invention are described more fully hereinafter with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Based on the teachings herein one skilled in the art should appreciate that the scope of the present invention is intended to encompass any aspect disclosed herein, whether alone or in combination with any other aspect of the invention to accomplish any aspect disclosed herein. For example, it may be implemented using any number of the apparatus or performing methods set forth herein. It is also to be understood that any disclosed herein may be embodied by one or more elements of a claim.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or models, but do not preclude the presence or addition of one or more other features, steps, operations, or models.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of the specification and should not be interpreted in an idealized or overly formal sense.
The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, a pulse discharge type bubble impact force generator for deicing comprises a bubble impact force exciter 10, wherein the bubble impact force exciter 10 comprises a flexible closed cavity 11, an electrode discharge device and a liquid working medium 13. The flexible sealed cavity 11 is filled with a liquid working medium 13, the electrode discharge device comprises two discharge electrodes 12 and a pulse power supply, the two discharge electrodes 12 comprise a positive discharge electrode and a negative discharge electrode, the two discharge electrodes 12 extend out of the flexible sealed cavity 11 and are connected with an external pulse power supply, the two discharge electrodes 12 are arranged in the flexible sealed cavity, the two discharge electrodes 12 are arranged at intervals, and the two discharge electrodes 12 are in direct contact with the liquid working medium 13. The arrangement of the discharge electrodes 12 in the flexible sealed cavity 11 can be selected according to the shape and type of the discharge electrodes 12. It is to be noted that the arrangement of the discharge electrodes 12 in the embodiment of the present invention is not to be construed as limiting the present invention. Those skilled in the art will understand that the liquid working medium 13 completely wraps the discharge electrode 12, so that the liquid working medium 13 can be sufficiently heated during the arc discharge heating operation. When the liquid working medium 13 is under the arc heating action of the discharge electrode 12, the pulse power supply can perform arc discharge within the range of microsecond to millisecond time scale, the liquid working medium 13 is quickly vaporized, the liquid working medium 13 boils to generate high-temperature and high-pressure bubbles, and the bubbles impact the cavity wall of the flexible sealing cavity to expand outwards to generate impact force for deicing. When the arc discharge heats the liquid working medium 13, the electrolysis effect is generated on the part of the liquid working medium 13, and the generated electrolytic gas can increase the air pressure in the flexible closed cavity 11 and increase the number of high-temperature and high-pressure bubbles, so that the expansion speed of the flexible wall is increased, and the impact force of the bubble impact force exciter 10 is improved.
The flexible sealed cavity 11 can be made of materials with good elasticity such as rubber and the like, and has the function of sealing the liquid working medium 13 in the flexible sealed cavity, so that on one hand, when the bubble impact force exciter 10 works, the liquid working medium 13 is prevented from volatilizing under the condition that the liquid working medium 13 in the flexible sealed cavity 11 is repeatedly boiled, and the service life of the bubble impact force exciter 10 is prolonged; on the other hand, when the liquid working medium 13 in the interior is heated by the electric arc of the discharge electrode 12, the temperature of part or all of the medium is rapidly raised to be higher than the boiling point, and high-temperature and high-pressure bubbles are generated, so that the flexible wall side 111 is rapidly expanded outwards, impact force is generated, and vibration force is generated to remove the ice layer on the surface of the aircraft skin. As shown in fig. 2, the flexible sealed cavity 11 may be designed to be square, and the flexible sealed cavity 11 may also be designed to be cylindrical or spherical, etc. The flexible sealed cavity 11 is provided with an exhaust port 113 and a fluid infusion port 114. When the bubble impact exciter 10 works, gas generated by electrolysis in the arc heating process or gas entering under other conditions can be discharged in time through the gas outlet 113; when the liquid working medium 13 is reduced due to the electrolysis, the liquid working medium 13 can be timely supplemented to the flexible closed cavity 11 through the liquid supplementing port 114. The arrangement of the air outlet 113 and the liquid supplementing port 114 can ensure that the flexible sealed cavity 11 is always kept in a state of being completely filled with the liquid working medium 13, so as to avoid weakening the vibration effect generated by bubble impact.
Specifically, the liquid supplementing port 114 is provided with a liquid working medium supplementing assembly 20, which comprises a liquid pump 21 and a liquid storage device 22, wherein a liquid outlet end of the liquid pump 21 is communicated with the liquid supplementing port 114, and a liquid inlet end of the liquid pump 21 is communicated with the liquid storage device 22. When a certain amount of residual gas is reached in the actuator, the pump will pump the liquid working substance 13 in the reservoir 22 into the actuator, forcing the residual gas and part of the liquid working substance 13 out of the actuator through the exhaust port 113, to ensure that the liquid working substance 13 in the actuator is in a full state. The inlet department of reservoir 22 is provided with check valve 23, and check valve 23 intercommunication reservoir 22 and atmosphere balance inside atmospheric pressure, avoid the inside pressure undersize of reservoir 22, can't squeeze into the condition of exciter with liquid working medium 13.
Further, the exhaust port 113 is communicated with the liquid storage device 22, the liquid working medium 13 exhausted in the exhaust process can flow back to the liquid storage device 22, and waste of the liquid working medium 13 during exhaust is reduced. Furthermore, the liquid working medium 13 is selected from the liquid working medium with lower breakdown voltage, the breakdown voltage required by the liquid working medium with higher electrolyte content is relatively lower, the voltage of the required pulse power supply is correspondingly reduced, and the energy utilization rate and the safety of the device can be improved. The liquid working medium of the embodiment can be selected from salt-containing water, and under the arc heating action of the discharge electrode 12, when the temperature reaches 100 ℃ or more than 100 ℃, the salt-containing water starts to boil to generate high-temperature and high-pressure bubbles, so that the wall of the flexible sealing cavity is impacted, and the impact force for deicing is generated.
The bubble impact actuator 10 needs to be installed under the skin of the aircraft to perform de-icing operations. Therefore, the pulse discharge type bubble impact force generator for deicing of the embodiment of the invention further comprises a mounting rack, the mounting rack fixedly mounts the bubble impact force exciter 10 below the skin of the airplane, and when the flexible closed cavity 11 expands, the bubble impact force exciter impacts the skin of the airplane to realize vibration deicing of the skin of the airplane. The mounting frame needs to be insulated and has certain rigidity, and materials such as hard plastic, metal with an insulating coating and the like can be selected. The mounting bracket enables the bubble impact exciter 10 to have a large expansion deformation on the side facing the skin.
In the specific using process of the embodiment, when the flexible sealed cavity 11 works, the pulse power supply supplies the required breakdown voltage, under the arc heating effect of the discharge electrode 12, after the liquid working medium 13 reaches the boiling point, the liquid working medium 13 starts to generate high-temperature and high-pressure bubbles, and when the arc discharge liquid working medium 13 is heated, the partial liquid working medium 13 can generate an electrolysis effect, so that the generated electrolysis gas can increase the air pressure in the flexible sealed cavity 11 and increase the number of the high-temperature and high-pressure bubbles. Due to the restraining action of the mounting bracket and the rigid wall side 112, the high temperature and high pressure bubbles impact the flexible side wall of the flexible sealed cavity 11 directionally, causing it to expand outward, generating an impact force for deicing. Along with the interruption of the discharging process, the heating process is stopped, the liquid working medium 13 is gradually cooled, the bubbles are gradually dissipated or destroyed, the vaporized liquid is liquefied into the liquid working medium 13 again, and the liquid working medium 13 is recovered to be in the initial state, and the liquid working medium 13 with reduced electrolysis can be timely supplemented to the flexible closed cavity 11 through the liquid supplementing port 114. The device can also discharge according to a certain time rule, so that periodic impact force is provided, and vibration deicing of the aircraft skin is realized.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A pulse discharge bubble impact force generator for de-icing comprising a bubble impact force actuator (10), said bubble impact force actuator (10) comprising a flexible closed cavity (11) and a liquid working substance (13), characterized in that: the bubble impact force exciter (10) further comprises an electrode discharging device, the electrode discharging device comprises two discharging electrodes (12) and a pulse power supply, the two discharging electrodes (12) comprise positive discharging electrodes and negative discharging electrodes, the positive discharging electrodes and the negative discharging electrodes are electrically connected with the pulse power supply, the positive discharging electrodes and the negative discharging electrodes are arranged in the flexible closed cavity (11), the liquid working medium (13) is arranged in the flexible closed cavity (11) and directly contacts with the two discharging electrodes (12), the positive discharging electrodes and the negative discharging electrodes are arranged at intervals, and the space between the two discharging electrodes (12) is filled with the liquid working medium (13).
2. A pulse discharge bubble impact force generator for deicing as claimed in claim 1 wherein: an air outlet (113) is arranged on the flexible closed cavity (11).
3. A pulse discharge bubble impact force generator for deicing as claimed in claim 2 wherein: and a liquid supplementing port (114) is arranged on the flexible closed cavity (11).
4. A pulse discharge bubble impact force generator for deicing as claimed in claim 3 wherein: and a liquid working medium supplementing assembly (20) is arranged at the liquid supplementing port (114).
5. A pulse discharge bubble impact force generator for deicing as claimed in claim 4 wherein: the liquid working medium supplementing assembly (20) comprises a liquid pump (21) and a liquid storage device (22), the liquid outlet end of the liquid pump (21) is communicated with the liquid supplementing port (114), and the liquid inlet end of the liquid pump (21) is communicated with the liquid storage device (22).
6. A pulse discharge bubble impact force generator for deicing as claimed in claim 5 wherein: and a one-way valve (23) is arranged at the liquid inlet of the liquid storage device (22).
7. A pulse discharge bubble impact force generator for deicing as claimed in claim 6 wherein: the air outlet (113) is communicated with the liquid inlet of the liquid storage device (22).
8. A pulsed discharge bubble impact force generator for deicing according to any one of claims 1-7, characterized in that: the flexible sealed cavity (11) is completely filled with the liquid working medium (13).
9. A pulse discharge bubble impact force generator for deicing as claimed in claim 8 wherein: the liquid working medium (13) is salt-containing water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210506505.XA CN114604432A (en) | 2022-05-11 | 2022-05-11 | Pulse discharge type bubble impact force generator for deicing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210506505.XA CN114604432A (en) | 2022-05-11 | 2022-05-11 | Pulse discharge type bubble impact force generator for deicing |
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| CN114604432A true CN114604432A (en) | 2022-06-10 |
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| CN202210506505.XA Pending CN114604432A (en) | 2022-05-11 | 2022-05-11 | Pulse discharge type bubble impact force generator for deicing |
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| CN113686851A (en) * | 2021-07-30 | 2021-11-23 | 哈尔滨工程大学 | Experimental device and method for monitoring crack propagation characteristics of bubble deicing |
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| JPH05106614A (en) * | 1991-10-18 | 1993-04-27 | Casio Comput Co Ltd | Bubble actuator |
| US20020096515A1 (en) * | 1998-06-15 | 2002-07-25 | Petrenko Victor F. | Prevention of ice formation by applying electric power to a liquid water layer |
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| WO2015024601A1 (en) * | 2013-08-23 | 2015-02-26 | Correale Giuseppe | Boundary layer control via nanosecond dielectric/resistive barrier discharge |
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Application publication date: 20220610 |