WO2022179475A1 - Dispositif de dégommage au plasma pour piste d'aéroport - Google Patents

Dispositif de dégommage au plasma pour piste d'aéroport Download PDF

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Publication number
WO2022179475A1
WO2022179475A1 PCT/CN2022/077096 CN2022077096W WO2022179475A1 WO 2022179475 A1 WO2022179475 A1 WO 2022179475A1 CN 2022077096 W CN2022077096 W CN 2022077096W WO 2022179475 A1 WO2022179475 A1 WO 2022179475A1
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WIPO (PCT)
Prior art keywords
control unit
electrode assembly
airport runway
plasma
runway
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PCT/CN2022/077096
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English (en)
Chinese (zh)
Inventor
王照洋
程国勇
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林强
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Application filed by 林强 filed Critical 林强
Publication of WO2022179475A1 publication Critical patent/WO2022179475A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma

Definitions

  • the invention relates to the technical field of airport runway cleaning, in particular to an airport runway plasma degumming equipment.
  • the high temperature causes the rubber melt formed by the instant melting of tire rubber and adheres to the texture of the runway surface.
  • the surface rubber layer continues to accumulate and thicken, and the accumulated rubber layer reduces the friction coefficient of the runway surface, which affects the braking performance of the aircraft.
  • the viscosity of the rubber on the runway significantly reduces the friction force. affect the safe landing of the aircraft.
  • the shot blasting method uses one or more turbines in the shot blasting equipment to spray iron microbeads to the treated surface.
  • the softer parts of the surface are removed to form an extremely superficial irregular "orange peel" structure.
  • the ejected microbeads and garbage are sucked by the vacuum cleaner connected to the shot blasting machine.
  • the metal microbeads will be automatically separated from the garbage. After the metal microbeads are cleaned, they return to the microbead cycle, and the garbage is separated into the output box.
  • the existing problems are: the metal microbeads are difficult to recover in rainy and snowy weather, and the residual metal microbeads are sucked into the engine, which will damage the engine and cause safety hazards.
  • the method of high-pressure water flushing is to use flexible flushing force and cleaning equipment.
  • the penetrating force of its high-speed water flow can rapidly expand along the interface between the rubber or paint coating and the substrate, causing it to peel off quickly, but the high-pressure water also collides with the pavement surface. Over time, it will affect the service life of the runway and cause frequent maintenance.
  • the airport has a limited number of available runways, usually only one or two, which seriously affects the normal operation of the airport.
  • Chemical formulation methods generally utilize a mixture of terpenes, hydrocarbons and/or ethers, nonionic and/or anionic surfactants. Spray or manually pour the glue remover on the tire rubber of the airport runway or taxiway. After about 1 hour, the silt will peel off from the surface of the runway and fall off into fine particles after infiltration, swelling and loosening. Finally, rinse with water or artificially. Scrub clean.
  • the problem is: under the increasingly stringent environmental protection requirements, chemical preparations must focus on the impact on the surrounding environment, so they will gradually withdraw from the historical stage.
  • Plasma glue removal also occurs in the prior art, but the existing plasma glue removal method consumes a lot of energy, the efficiency needs to be improved, and the road surface is damaged.
  • the present invention provides an airport runway plasma glue removing equipment.
  • a plasma degumming equipment for airport runways comprising: a carrier vehicle body, a rolling electrode mounted on the bottom of the carrier vehicle body, a discharge electrode assembly mounted on the bottom of the carrier vehicle body;
  • the rolling ground electrode is connected to the negative electrode of the radio frequency power supply, and is in rolling contact with the road surface rubber layer of the airport runway when it is in use, and is used to temporarily polarize the road surface rubber layer of the airport runway to form the The temporary discharge electrode of the discharge electrode assembly;
  • the discharge electrode assembly is directly coupled with the road surface rubber layer of the airport runway to discharge and stimulate the oxygen ejected from the oxygen generator to generate high-concentration plasma so that the road surface
  • the rubber layer is vaporized;
  • the oxygen generator is used to produce oxygen by using air as a raw material;
  • the radio frequency power supply is used to provide high-voltage and high-frequency power supply for the discharge electrode assembly;
  • the control unit is used to control the rolling ground Operation of the electrode,
  • ground electrodes which are respectively arranged on both sides of the discharge electrode assembly and are 5-10 cm away from the edge of the discharge electrode assembly.
  • the discharge electrode assembly is an array electrode assembly, which is a platinum electrode, one end of the platinum electrode is connected to the positive electrode of the radio frequency power supply, and the other end is a tip and is 15-40mm above the ground;
  • the electrode is surrounded by a ventilation tube; the upper end of the ventilation tube is provided with an oxygen input port.
  • the oxygen generator is connected to the oxygen input port of the ventilation pipe through a pipeline, and the oxygen is transported into the ventilation pipe for generating plasma.
  • the array electrode assembly includes 2-50 rows of platinum electrodes with 2-50 electrodes in each row; the frequency of the radio frequency power supply is 300KHz-30GHz, and the voltage range is 10-30kv.
  • a pre-processing unit disposed at the bottom of the vehicle body and connected to the control unit in communication, including an infrared detection sensor, a humidity detection sensor, a water accumulation detection sensor and a road processing unit;
  • the infrared detection sensor is used for The temperature data of the airport runway is measured in real time and transmitted to the control unit;
  • the humidity detection sensor is used to measure the humidity data of the airport runway in real time and transmit it to the control unit;
  • the water accumulation detection sensor is used for Measure the water depth data of the airport runway in real time and transmit it to the control unit;
  • the control unit receives the temperature data, the humidity data and the water depth data and compares them with the preset threshold data to determine whether When the working conditions of the array electrode assembly are reached, if not, the road processing unit is controlled to process the airport runway; if it is met, the operation of the array electrode assembly is controlled.
  • the carrier body also includes an identification unit disposed at the bottom of the carrier body and connected in communication with the control unit, including a lidar and an image acquisition unit; the lidar is used to generate feedback based on the road surface condition of the airport runway wave data and transmit it to the control unit; the image acquisition unit is used to acquire the road surface image of the airport runway and transmit it to the control unit; the control unit receives the echo data and the road surface image , and according to the echo data and the road surface image, identify the glue accumulation range, thickness, road surface joints and lamps of the airport runway of the road surface rubber layer.
  • an identification unit disposed at the bottom of the carrier body and connected in communication with the control unit, including a lidar and an image acquisition unit; the lidar is used to generate feedback based on the road surface condition of the airport runway wave data and transmit it to the control unit; the image acquisition unit is used to acquire the road surface image of the airport runway and transmit it to the control unit; the control unit receives the echo data and the road surface image , and according to the echo data and the road surface image
  • the runway cleaning unit is arranged at the bottom of the vehicle body and is connected to the control unit in communication;
  • the runway cleaning unit includes an exhaust gas and dust recovery cover, a dust and FOD absorber and an exhaust gas Innocent treatment and dust recovery box;
  • the dust and FOD absorber is arranged inside the exhaust gas and dust recovery hood to absorb the dust and impurities on the airport runway and transport it to the exhaust gas innocuous treatment and Dust recycling bin.
  • it also includes a lifting unit for removing the rolling ground electrode, the array electrode assembly, the preprocessing unit, the identification unit and the The cleaning unit receives the interior of the carrier body.
  • control unit includes a first control unit and a second control unit, the first control unit is connected with the array electrode assembly, the oxygen generator, the radio frequency power supply, the pretreatment unit and the
  • the beneficial effects of the invention are: to provide an airport runway plasma glue removal equipment, the invention adopts the direct coupled discharge to use the road surface glue layer as the discharge electrode and at the same time as the glue removal object; through the array electrode assembly and the airport runway surface
  • the high-concentration pure oxygen plasma generated by the discharge between the adhesive layers will burn and gasify the adhesive layer at a low temperature, so as to completely remove the road surface adhesive layer without damaging the road surface, and has the ability of all-weather degumming.
  • the plasma of the present invention is directly generated on the surface of the track, which reduces the energy loss and the neutralization of the plasma during the ejection process of the plasma generator, reduces the loss of electric energy, and at the same time greatly reduces the discharge voltage and the plasma temperature. , reduce the temperature impact and damage to the surface of the runway; it can also greatly improve the removal efficiency.
  • FIG. 1 is a schematic diagram of an airport runway plasma degumming equipment in an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a discharge structure of an airport runway plasma degumming equipment according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an array electrode assembly in an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a preprocessing unit in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of an identification unit in an embodiment of the present invention.
  • connection can be used for both the fixing function and the circuit connection function.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first”, “second” may expressly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • an airport runway plasma degumming equipment includes: a carrier vehicle body 1, a rolling electrode 12 installed at the bottom of the carrier vehicle body 1, and a discharge electrode assembly installed at the bottom of the carrier vehicle body; And the oxygen generator 4, the radio frequency power supply 5 and the control unit installed in the carrier body 1;
  • the ground electrode 12 is connected to the negative electrode of the radio frequency power supply, and is in rolling contact with the road surface rubber layer of the airport runway when it is used, and is used to temporarily polarize the road surface rubber layer of the airport runway to form the temporary discharge electrode of the discharge electrode assembly;
  • the discharge electrode assembly is directly coupled with the road surface rubber layer of the airport runway to discharge and stimulate the high-purity oxygen sprayed from the oxygen generator 4 to generate high-concentration plasma to vaporize the road surface rubber layer;
  • Oxygen generator 4 is used to produce high-purity oxygen with air as raw material
  • the radio frequency power supply 5 is used to provide high voltage and high frequency power supply for the array electrode assembly 2;
  • the control unit is used to control the operation of the ground electrode 12 , the discharge electrode assembly, the oxygen generator 4 , the radio frequency power source 5 and the generator 3 .
  • the airport runway plasma degumming equipment also includes a generator 3 for power supply.
  • the airport runway plasma degumming equipment uses a direct-coupled discharge between the array electrode assembly and the road surface adhesive layer, and uses the road surface adhesive layer as a discharge electrode and at the same time as a degumming object; through the array electrode assembly and the road surface adhesive layer
  • the high-concentration and high-purity oxygen plasma generated by the discharge between the rubber layers of the airport runway will burn and gasify the rubber layer at a low temperature, so as to completely remove the rubber layer of the road surface without damaging the road surface, and it has the ability of all-weather degumming.
  • the plasma of the invention is directly generated on the surface of the runway, which reduces the energy loss and the neutralization of the plasma during the ejection process of the plasma generator, reduces the loss of electric energy, and at the same time greatly reduces the discharge voltage and isothermal temperature, and reduces the impact on Temperature shock and damage to the runway surface; it can also greatly improve the removal efficiency.
  • the macroscopic temperature of the direct-coupled discharge depends on the distance between the array electrode assembly and the road surface adhesive layer, the voltage and frequency of the radio frequency power supply, the oxygen supply pressure of the oxygen generator, and the air flow velocity of the nozzle. and parameters such as the traveling speed of the glue removal equipment; compared with the traditional plasma glue removal technology that requires plasma to be generated in the plasma generator and sprayed on the road surface, the present invention combines the generation, spraying of the plasma and the effect of the glue layer. The processes are combined together to avoid the energy loss and the neutralization of the plasma in the process of plasma ejection in the traditional technology, so the macroscopic temperature of this technology can be reduced under the premise of achieving the same or even better degumming effect.
  • the plasma is not generated in the ion generator or in the plasma torch, but is directly coupled with the track surface through the array electrode assembly, so that the plasma concentration can be increased by more than 1 times, per unit time
  • the internal glue removal area is at least doubled compared to the traditional plasma glue removal equipment.
  • ground electrodes 12 which are respectively arranged on both sides of the array electrode assembly 2 at a distance of 5-10 cm from the edge of the discharge electrode assembly. It will greatly reduce the polarization effect of the road surface rubber layer.
  • the ground electrode 12 and the discharge electrode assembly are both arranged at the bottom of the vehicle body 1; the ground electrode 12 is connected to the negative electrode of the radio frequency power supply 5, and is used to temporarily polarize the road surface glue layer, so that the discharge electrode assembly is placed on the surface of the glue layer. Create conditions for discharge and generation of high-concentration plasma.
  • the discharge electrode assembly is an array electrode assembly 2 .
  • the ground electrode 12 temporarily polarizes the track surface rubber layer 18 through the conductive rubber 21
  • the array electrode assembly 2 is a platinum electrode 15
  • the platinum electrode 15 is covered with an insulating layer 20
  • One end is connected with the positive pole of the radio frequency power supply 5 through the cable 23, and the other end is the tip 16 and is 15-40mm from the ground; each platinum electrode 15 is surrounded by a ventilation tube 22; the upper end of the ventilation tube 22 is provided with an oxygen input port 19, and the bottom is provided with an oxygen spray Exit 17.
  • the oxygen generator 4 is connected to the oxygen input port 19 of the ventilation pipe 22 through a pipeline, and the oxygen is transported into the ventilation pipe 22 for generating plasma to remove the road surface rubber layer 18 .
  • the gas pressure of the high-purity oxygen supplied to the vent pipe 22 is 1 ⁇ 10 5 Pa, and the flow rate is 12 m/s. Because the plasma is generated by discharge under atmospheric pressure, the gas pressure is 1 ⁇ 10 5 Pa, the high-purity oxygen flow rate in the pipeline is generally 12m/s under atmospheric pressure, and if it is too large or too small, the plasma generation efficiency will be low.
  • the array electrode assembly 2 includes 2-50 rows of platinum electrodes 15 with 2-50 electrodes in each row; the frequency of the radio frequency power supply 5 is 300KHz-30GHz, and the voltage range is 10-30kV. Too few or too sparse electrodes are not enough to form an electrode array assembly, and the glue removal range is too small, and the glue removal efficiency is too low; too much and too dense electrode arrangement will cause a certain amount of waste of resources, and will also cause the array electrode assembly to be too large.
  • the array electrode assembly is set to 2 -50 rows, 2-50 needle tip bodies in each row.
  • the airport runway plasma degumming equipment further includes a preprocessing unit 11 disposed at the bottom of the carrier body 1 and connected to the control unit in communication, including infrared detection sensors, humidity detection Sensors, water detection sensors and road processing units;
  • the infrared detection sensor is used to measure the temperature data of the airport runway in real time and transmit it to the control unit;
  • the humidity detection sensor is used to measure the humidity data of the airport runway in real time and transmit it to the control unit;
  • the water accumulation detection sensor is used to measure the water accumulation depth data of the airport runway in real time and transmit it to the control unit;
  • the control unit receives the temperature data, humidity data and the water depth data and compares it with the preset threshold data to determine whether the working conditions of the array electrode assembly are reached, if not, the road processing unit controls the The airport runway is processed; if reached, the operation of the array electrode assembly is controlled.
  • the efficiency of the road surface plasma degumming operation is closely related to the road surface condition. Too high or too low humidity is not conducive to the development of the degumming operation (for example, when there is water on the road surface, the traditional plasma degumming operation cannot be carried out). Temperature also directly affects the degumming effect.
  • the preprocessing unit has built-in infrared detection, water and humidity detection sensors, and sends the temperature, water depth and humidity information of the road surface to the control unit. Operating conditions of the electrode assembly. If it is not reached, the road treatment unit will treat the airport runway.
  • the road treatment unit may include hardware for performing hot steam treatment and cold blowing treatment on the road surface according to specific requirements, and the present invention does not limit the specific hardware.
  • the pretreatment unit 11 adjusts the humidity of the adhesive layer on the road surface to create optimal conditions for the discharge of the array electrode assembly (temperature 10°C to 50°C; humidity 20% to 50%), which can improve the plasma adhesive removal efficiency.
  • the array electrode assembly has poor discharge conditions and low glue removal efficiency, so that the equipment cannot achieve the desired glue removal effect or even work.
  • the traditional plasma glue removal operation cannot be carried out.
  • the existence of this component makes the equipment not affected by rain and snow weather and has all-weather degumming ability.
  • FIG. 5 in another embodiment of the present invention, it further includes an identification unit 10 disposed at the bottom of the carrier body and connected in communication with the control unit, including a lidar 25 and an image acquisition unit 24;
  • the lidar 25 is used to generate echo data based on the road surface conditions of the airport runway and transmit it to the control unit; it can be generated according to the difference in the echo generated by the lidar 25 on the rubberized road surface, ordinary road surface, runway lamps, and road surface joints. Identify road conditions.
  • the image acquisition unit 24 is used to acquire the road surface image of the airport runway and transmit it to the control unit;
  • the control unit receives the echo data and the pavement image, and identifies the adhesive range, thickness, pavement joints and lamps of the airport runway of the pavement adhesive layer according to the echo data and the pavement image.
  • the identification unit 10 automatically identifies the range, thickness, road surface joints and runway lamps of the glue accumulation, and feeds back the information to the control unit.
  • the lamps can be identified and automatically avoided, which can effectively remove the pavement rubber and avoid damage to the pavement joints and lamps.
  • a runway cleaning unit is further included, and the runway cleaning unit is disposed at the bottom of the carrier body and is connected to the control unit in communication;
  • the runway cleaning unit includes an exhaust gas and dust recovery cover 9, a dust and FOD absorber 13 and a waste gas innocuous treatment and dust recovery box 8; the dust and FOD absorber 13 is arranged inside the exhaust gas and dust recovery cover 9 for absorbing
  • the dust and impurities on the airport runway are transported to the waste gas innocuous treatment and dust recovery box 8, and the dust recovery cover 9 is used to absorb the waste gas and dust generated by the array electrode assembly 2 during the degumming process.
  • the waste gas innocuous treatment and dust recovery box 8 is used to store the dust and the waste gas and dust absorbed by the FOD absorber 13 , as well as the waste gas and dust impurities absorbed by the recovery cover 9 .
  • the dust recovery box 8 is arranged in the vehicle body 1 .
  • the ground electrodes 12 are respectively provided on both sides of the exhaust gas and dust recovery cover 9 to ensure the distance between the ground electrodes 12 and the array electrode assembly 2 and to utilize the space reasonably;
  • the dust and FOD absorber 13 also has Two, respectively, are disposed between the ground electrode 12 and the array electrode assembly 2 , the identification unit 10 is disposed beside the array electrode assembly 2 , and two groups of the pretreatment unit 11 are disposed outside the exhaust gas and dust recovery cover 9 respectively.
  • the array electrode assembly 2 , the exhaust gas and dust recovery cover 9 , the identification unit 10 , the pretreatment unit 11 , the rolling electrode 12 , and the dust and FOD absorber 13 need to be arranged at the bottom of the carrier body 1 , close to the airport runway for easy work.
  • a lifting unit 14 is further included, which is used to move the ground electrode 12, the array electrode assembly 2, the preprocessing unit 11, and the identification unit disposed at the bottom of the carrier body 1 when not in operation. 10 and the cleaning unit are received inside the carrier body 1, protecting it from unnecessary damage.
  • control unit includes a first control unit 6 and a second control unit 7, the first control unit 6 and the array electrode assembly 2, the oxygen generator 4, the radio frequency power supply 5, and the preprocessing unit 11 is in communication connection with the identification unit 10; the second control unit 7 is in communication connection with the rolling ground electrode 12 and the runway cleaning unit.
  • the first control unit 6 and the second control unit 7 cooperate with each other and work together.
  • the second control unit is the controller, since the ground electrode 12 , the exhaust gas innocuous treatment and dust recovery box 8 , the exhaust gas and dust recovery cover 9 , and the dust and FOD absorber 13 form a track
  • the cleaning unit only needs to control the operation, and does not need too much signal processing, and the frequency of use is high, the working time is long, and sometimes it needs to be replaced or repaired.
  • the controller is used to control it, making the system more reliable and more convenient for replacement and maintenance. .
  • a generator 3, an oxygen generator 4, a radio frequency power supply 5, a dust recovery box 8, a first control unit 6 and a second control unit 7 are arranged in the carrier body 1 in sequence.
  • the ground electrode 12 , the array electrode assembly 2 , the pretreatment unit 11 , the identification unit 10 and the cleaning unit are accommodated, and the internal settings of the carrier body can be adjusted according to specific needs, which is not limited in the present invention.

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Abstract

L'invention concerne un dispositif de dégommage au plasma pour une piste d'aéroport. Le dispositif de dégommage au plasma comprend : un corps de véhicule porteur (1), une électrode de roulement au sol (12) et un ensemble d'électrodes de décharge, qui sont montées au bas du corps de véhicule porteur (1), et un générateur d'oxygène (4), une source d'énergie à radiofréquence (5) et une unité de commande, qui sont montés à l'intérieur du corps de véhicule porteur (1). L'électrode de roulement au sol (12) est connectée à une électrode négative de la source d'énergie à radiofréquence (5) et, lorsqu'elle est utilisée, l'électrode de roulement au sol (12) est en contact roulant avec une couche de gomme de revêtement (18) d'une piste d'aéroport, de manière à polariser temporairement la couche de gomme de revêtement (18) de la piste d'aéroport afin de former une électrode de décharge temporaire de l'ensemble d'électrodes de décharge. L'ensemble d'électrodes de décharge est directement couplé à la couche de gomme de revêtement (18) de la piste d'aéroport pour effectuer la décharge et exciter l'oxygène pulvérisé à partir du générateur d'oxygène (4), de sorte qu'un plasma à haute concentration est généré pour gazéifier la couche de gomme de revêtement (18). Le générateur d'oxygène (4) est utilisé pour préparer l'oxygène en prenant l'air comme matière première. La source d'énergie à radiofréquence (5) est utilisée comme source d'énergie à haute tension et à haute fréquence pour l'ensemble d'électrodes de décharge. L'unité de commande est utilisée pour commander le fonctionnement de l'électrode de roulement au sol (12), de l'ensemble d'électrodes de décharge, du générateur d'oxygène (4) et de la source d'énergie à radiofréquence (5). Le plasma est généré au moyen d'une décharge par couplage direct, l'efficacité du dégommage est élevée, et le dégommage est effectué de façon approfondie sans endommager le revêtement.
PCT/CN2022/077096 2021-02-24 2022-02-21 Dispositif de dégommage au plasma pour piste d'aéroport WO2022179475A1 (fr)

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CN202110209809.5A CN113106903B (zh) 2021-02-24 2021-02-24 一种机场跑道等离子除胶装备
CN202110209809.5 2021-02-24

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