CN115110466B - Airflow-driven airport defogging system - Google Patents
Airflow-driven airport defogging system Download PDFInfo
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- CN115110466B CN115110466B CN202210655750.7A CN202210655750A CN115110466B CN 115110466 B CN115110466 B CN 115110466B CN 202210655750 A CN202210655750 A CN 202210655750A CN 115110466 B CN115110466 B CN 115110466B
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- 230000005684 electric field Effects 0.000 claims abstract description 11
- 230000009471 action Effects 0.000 claims abstract description 10
- 239000003595 mist Substances 0.000 claims description 28
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
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- JKFYKCYQEWQPTM-UHFFFAOYSA-N 2-azaniumyl-2-(4-fluorophenyl)acetate Chemical compound OC(=O)C(N)C1=CC=C(F)C=C1 JKFYKCYQEWQPTM-UHFFFAOYSA-N 0.000 description 1
- 229910021612 Silver iodide Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000002195 synergetic effect Effects 0.000 description 1
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Classifications
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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
- E01H13/00—Dispersing or preventing fog in general, e.g. on roads, on airfields
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
- B03C3/14—Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity
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- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention discloses an airflow-driven airport defogging system, which belongs to the field of airport auxiliary equipment, and comprises: a mobile device comprising a tablet and movable within an airport runway; n (n is more than or equal to 3) three-electrode demisting devices are circumferentially arranged on the flat plate to form a demisting space with a closed n surface; the three-electrode demisting device is used for generating a corona electric field through corona discharge during operation; the airflow driving charging device is arranged on the flat plate and is positioned in the demisting space, and is used for generating airflow from bottom to top in the demisting space and charging fog flowing through the top end of the airflow driving charging device; during operation, fog enters the defogging space from the outside of the defogging space under the action of air flow, part of fog is collected under the action of a corona electric field after being charged when passing through the three-electrode defogging device, and the rest of fog is transmitted from bottom to top in the defogging space and is transported to a distance by the air flow after being charged at the top end of the air flow driving charging device, and collides with and condenses with the distant fog. The invention can improve the demisting efficiency in the airport runway.
Description
Technical Field
The invention belongs to the field of airport auxiliary equipment, and particularly relates to an airflow-driven airport defogging system.
Background
Mist is a weather phenomenon in which small water droplets having a suspended diameter of 0.1 to 10 μm in the air affect the landing of an aircraft when the visibility of the mist is reduced to 800 m.
The traditional demisting method mainly comprises the steps of sowing silver iodide to serve as condensation nuclei, accelerating the collision process of fog drops, promoting the sedimentation of the fog drops and improving the visibility of fog, but the method is often complex to operate, high in price, pollutes the environment and even corrodes airport equipment.
In order to overcome the defects of the traditional demisting method, in the patent application document with the application publication number of CN 111424603A, an airport demisting system is disclosed, and comprises a three-electrode mist blocking device and an acoustic wave demisting device; the three-electrode mist blocking device comprises: the control module, the power module, a plurality of electrode modules spliced along runway at both sides of the airport runway, and two visibility meters; the electrode module is used for generating ion wind which points to the outside from the inside of the airport runway through corona discharge so as to intercept fog outside the airport runway; the two visibility meters are respectively used for measuring the visibility of the interior and the exterior of the airport runway, and the control module is used for adjusting the voltage of the power supply module according to the difference value of the visibility of the interior and the exterior of the airport runway so as to adjust the intensity of the ion wind; the sound wave defogging device can move in the airport runway and is used for generating sound waves, enhancing collision agglomeration among fog drops and improving the visibility of the inside of the airport runway.
Above-mentioned airport defogging system forms ion wind through corona discharge on the one hand, intercepts the outside fog of airport runway, prevents that the outside fog of airport runway from getting into inside the runway, on the other hand, clear away the inside fog of airport runway by the sound wave defogging device through the sound wave, and the two cooperatees, can clear away the inside fog of airport runway fast, high efficiency, guarantees the normal take off of aircraft, and economic benefits is high to need not to use corrosive substance, can effectively avoid corroding airport equipment, avoided environmental pollution. However, the three-electrode fog blocking device in the airport defogging system is fixedly arranged on two sides of an airport runway, fog around the runway can be only intercepted, collision condensation of fog drops is promoted in the runway through a sound wave acceleration oscillation mode, and the overall defogging efficiency still needs to be further improved.
In order to improve demisting efficiency, in a patent application document with application publication number of CN 111375490A, a demisting and water collecting device based on coupling of ion wind and a vibrating wire grid is disclosed, wherein an airflow channel is arranged in the demisting and water collecting device, and the vibrating wire grid, a ground electrode and a high-voltage electrode are sequentially arranged in the airflow channel along the airflow direction formed by mist drops; the vibrating wire grating vibrates under the drive of the airflow carrying the fog drops, so that part of the fog drops collide and flow out along the vibrating wire grating; an electric field area is formed between the ground electrode and the high-voltage electrode, and ion wind with the direction opposite to that of the air flow is generated, so that an intersection surface is formed between the air flow and the ion wind; the negative direct current high voltage power supply is used for providing adjustable voltage for the high voltage electrode, so that the junction surface is positioned at the ground electrode, and the residual fog drops flow out along the junction surface; compare in traditional mode of catchmenting, the scheme that this patent application file disclosed has passed through the collection of twice fog droplet, and defogging catchment efficiency is higher. But on the basis of collecting the fog drops by corona discharge, the vibration of the vibrating wire grid is utilized to improve the collecting efficiency of the fog drops, and the improvement on the collecting efficiency of the fog drops is very limited.
In order to improve demisting efficiency, in the patent application document with the application publication number of CN 114165859A, a multi-electrode demisting device with synergistic effect of static electricity and a flow field is disclosed, the device is provided with high-voltage electrodes on two sides of a ground electrode respectively, and forms turbulence in cooperation with mist by generating corona ion wind opposite to the mist inflow direction, so that mist drops which are not collected once are returned to the vicinity of the ground electrode again for secondary collection, thereby improving demisting efficiency. The effective action range of the demisting device is only in the range where the electrodes are just opposite, and has higher demisting efficiency in the closed space, but in the open space such as an airport runway, ion wind generated by the electrodes can escape to the periphery, so that high-efficiency demisting of the airport runway cannot be realized.
In general, the existing demisting apparatus has a demisting efficiency to be further improved when demisting an airport runway.
Disclosure of Invention
In response to the shortcomings and improvements of the prior art, the present invention provides an airflow driven demisting system for an airport, which aims to improve demisting efficiency in an airport runway.
To achieve the above object, according to one aspect of the present invention, there is provided an air flow driven type airport defogging system comprising: the device comprises a moving device, a three-electrode defogging device and an airflow driving charging device;
The mobile device comprises a flat plate and can move in an airport runway;
The three-electrode demisting devices are provided with n groups, and the n three-electrode demisting devices are circumferentially arranged on the flat plate to form an n-face closed demisting space; the three-electrode demisting device is used for generating a corona electric field through corona discharge during operation; n is more than or equal to 3;
the airflow driving charging device is arranged on the flat plate and is positioned in the demisting space, and is used for generating airflow from bottom to top in the demisting space and enabling mist flowing through the top end of the airflow driving charging device to be charged;
During operation, fog enters the defogging space from the outside of the defogging space under the action of air flow, part of fog is collected under the action of a corona electric field after being charged when passing through the three-electrode defogging device, and the other part of fog is transmitted from bottom to top in the defogging space, is transported to a distance by the air flow after being charged at the top end of the air flow driving charging device, and collides with and condenses with distant fog.
Further, the three-electrode demisting device comprises a corona electrode, and a ground electrode and a protective electrode which are arranged on two sides of the corona electrode and are opposite to the corona electrode;
Adjacent electrodes in the three-electrode demisting device are fixed through insulators, and the distance d2 between the corona electrode and the ground electrode is smaller than the distance d3 between the corona electrode and the protective electrode; the ground electrode and the protection electrode are directly arranged on the flat plate, and the protection electrode is positioned outside the defogging space; the corona electrode is arranged on the flat plate through an insulator.
Further, the corona electrode comprises a first electrode frame and a corona starting electrode arranged in the first electrode frame;
the corona-forming electrode is a wire electrode, a blade electrode or a needle array electrode.
Further, the ground electrode comprises a second electrode frame and a metal mesh electrode arranged in the second electrode frame;
The structure of the guard electrode is the same as that of the ground electrode.
Further, a water guide groove is also arranged on the flat plate at the outer side of the three-electrode demisting device.
Further, the airflow-driven charging device includes: the device comprises a fixed bracket, an air extraction module and a charging module;
the fixed bracket is fixed on the flat plate and is positioned in the demisting space;
the air extraction module is arranged on the fixed bracket and used for generating air flow from bottom to top in the demisting space;
the charging module is fixed at the top of the air extraction module through an insulator and is used for charging the mist drops flowing through.
Further, the air extraction module is an axial flow fan.
Further, the charging module is a charger.
Further, the airflow-driven airport defogging system provided by the invention further comprises: a control device;
The control device is connected with each three-electrode defogging device and the airflow-driven charging device and is used for monitoring the visibility in the airport runway, and when the monitored visibility is lower than a preset visibility threshold value and defogging operation is not performed, the airflow-driven charging device and the three-electrode defogging device are started in sequence so as to perform defogging operation;
and the control device is also used for sequentially closing the three-electrode defogging device and the air flow driving charging device to stop defogging operation when the monitored visibility is higher than the visibility threshold value and defogging operation is performed.
Further, the mobile device further comprises a power device;
The power equipment is connected with the flat plate through a connecting shaft arranged on one side of the flat plate and used for driving the flat plate to move in an airport runway and driving the flat plate to turn within the range of-45 degrees to 45 degrees in the horizontal direction.
In general, through the above technical solutions conceived by the present invention, the following beneficial effects can be obtained:
(1) According to the airflow-driven type airport defogging system provided by the invention, an n-face closed defogging space is formed by surrounding the three-electrode defogging device, airflow from bottom to top is formed in the defogging space by utilizing the airflow charging device, a relatively closed space is formed in the open airport runway space, the airflow-driven charging device is enabled to form a negative pressure area at the bottom, fog outside the defogging space is guided and accelerated to enter the defogging space, and then flows from bottom to top in the defogging space, in the process, part of fog is collected under the action of a corona electric field after being charged when passing through the three-electrode defogging device, and the rest part of fog is transported to a far place by the airflow after being charged at a top charging module of the airflow-driven charging device and is collided and condensed with the far fog, so that the fog collecting of the far-place fog can be promoted while the fog removal efficiency of fog drops around the three-electrode defogging device is improved, and the far-place fog dissipation can be accelerated. In general, the invention can effectively improve the charge efficiency of fog drops, increase the elimination path of the fog drops and effectively improve the defogging efficiency in an airport runway.
(2) According to the airflow-driven type airport defogging system provided by the invention, a mobile device capable of moving in an airport runway is used for bearing a defogging structure, namely, the three-electrode defogging device and the airflow-driven charging device, and when defogging operation is carried out, the three-electrode defogging device and the airflow-driven charging device are driven to reciprocate in the airport runway by the mobile device, so that fog at any position in the airport runway can be removed.
Drawings
FIG. 1 is a schematic diagram of an airflow-driven airport defogging system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a three-electrode demisting device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a corona electrode and a ground electrode in a three-electrode demisting device provided by an embodiment of the invention; wherein, (a) is a corona electrode schematic diagram, and (b) is a ground electrode schematic diagram;
FIG. 4 is a schematic diagram of an airflow driven charging device according to an embodiment of the present invention;
the same reference numbers are used throughout the drawings to reference like elements or structures, wherein:
1-a mobile device; 11-flat plate, 12-water guiding groove and 13-connecting shaft;
2-three electrode defogging device; 21-corona electrode, 22-protective electrode, 23-ground electrode, 24-first electrode frame, 25-corona electrode, 26-second electrode frame, 27-metal mesh electrode and 28-insulator;
3-airflow driven charging device; 31-fixing support, 32-air extraction module, 33-charging module and 34-insulator;
4-a control device; 41-visibility meter, 42-power module, 43-calculation module.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
In the present invention, the terms "first," "second," and the like in the description and in the drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
In order to improve the demisting efficiency of an airport runway, the invention provides an airflow-driven airport demisting system, which has the following overall thought: adding a fog drop elimination path, specifically, surrounding a three-electrode fog removing device capable of charging and collecting fog drops through corona discharge to form a relatively closed fog removing space, driving the charging device through air flow to form bottom-up air flow in the fog removing space, guiding and accelerating the air flow to pass through the fog removing space, wherein the fog drops are partially charged and collected when passing through the three-electrode fog removing device, and the rest is charged and transported to a far place through the top of the air flow driving device; the charged fog drops transported to the far distance are equivalent to condensation cores, and other fog drops are collected after being collided and condensed under the action of electrostatic attraction force, and meanwhile elimination of the fog drops at the far distance is accelerated.
In one embodiment of the present invention, there is provided an air flow driven airport mist eliminator system, as shown in FIG. 1, comprising: a moving device 1, a three-electrode defogging device 2 and a gas flow driving charging device 3.
Referring to fig. 1, in the present embodiment, a mobile device 1 is specifically a trailer system, which includes a platform 11 and a power plant; a connecting shaft 13 is arranged at one side of the flat plate 11, and the power equipment is connected with the flat plate 11 through the connecting shaft 13 and is used for driving the flat plate 11 to move in an airport runway and driving the flat plate 11 to be converted in the horizontal direction; in order to ensure that the flat plate 11 can normally complete turning and falling, and is compatible with the existing power equipment, in the embodiment, the power equipment can specifically drive the flat plate 11 to turn within the range of-45 degrees to 45 degrees in the horizontal direction.
Referring to fig. 1, in the present embodiment, a three-electrode demisting device 2 is provided with 4 stages, so as to form a demisting space with 4 closed surfaces; the three-electrode demisting device 2 is used for generating a corona electric field through corona discharge during operation;
Referring to fig. 2, in the present embodiment, the three-electrode demister 2 includes a corona electrode 21, and a ground electrode 23 and a protective electrode 22 disposed on both sides of the corona electrode 21 and disposed opposite to the corona electrode 21;
adjacent electrodes in the three-electrode demisting device 2 are fixed through insulators 28, and the distance d2 between the corona electrode 21 and the ground electrode 23 is smaller than the distance d3 between the corona electrode 21 and the protective electrode 22; the ground electrode 23 and the guard electrode 22 are directly mounted on the flat plate 11, and the guard electrode 22 is located outside the defogging space; the protection electrode 22 plays a shielding role to prevent the corona electrode 21 from being mistakenly shocked to cause electric shock accidents during working, and the corona electrode 21 is ensured to be preferentially discharged to the ground electrode 23 due to d2< d3;
In order to avoid the corona electrode 21 from directly discharging the flat plate 11 and affecting the defogging efficiency, in this embodiment, the corona electrode 21 is mounted on the flat plate 11 through an insulator 28;
as shown in (a) of fig. 3, in the present embodiment, the corona electrode 21 includes a first electrode frame 24 and a corona onset electrode 25 provided within the first electrode frame 24; optionally, in this embodiment, the corona-starting electrode 25 is a wire electrode, and the diameter of the wire electrode affects the distance between wires, and the distance between wires needs to be selected by comprehensively considering the electric field shielding effect between wires and the number of wires in the electrode frame so as to ensure that the discharge current of the electrode frame with a given size is maximum; in other embodiments of the present invention, corona electrode 21 may also be a blade electrode, a needle array electrode, or the like that is prone to corona discharge; the selection of parameters such as the material, the cross-sectional area, whether the electrode frame is hollow and the like needs to meet the requirements of mechanical strength and portability simultaneously so as to ensure that the electrode frame is not deformed in the use process, and equipment such as a crane is not required to be used in the installation process;
as shown in (b) of fig. 3, in the present embodiment, the ground electrode 23 includes a second electrode frame 26 and a metal mesh electrode 27 provided in the second electrode frame 26; the surface of the metal net is flat, and the mesh size is selected to ensure that the most water is collected on the ground electrode 23 when other parameters are the same; the design of the second electrode frame 26 can be referred to as the design of the first electrode frame 24 in the corona electrode 21;
the structure of the guard electrode 22 is the same as that of the ground electrode 23;
In order to ensure that discharge occurs between the corona electrode 21 and the ground electrode 23, the height of the bottom end of the corona electrode 21 from the flat plate 11 should be greater than or equal to the distance d2 between the corona electrode 21 and the ground electrode 23, in this embodiment, the height of the bottom end of the corona electrode 21 from the flat plate 11 is directly set to d2, so that insulators of the same system can be used, and the cost is reduced; as shown in fig. 2, the height of the bottom end of the corona electrode 21 from the flat plate 11 is d2, the height of the electrode frame of the corona electrode 21 is H2, the height of the electrode frame of the ground electrode 23 is H1, and the three satisfy h1=h2+d2; the length L and the height H2 of the corona electrode 21, and the electrode frame height H1 of the height of the ground electrode 23 need to ensure sufficient mechanical strength of the electrode frame and sufficient flatness of the electrode surface.
Referring to fig. 1, in the present embodiment, an airflow-driven charging device 3 is disposed on a flat plate 11 and is located in the demisting space, for generating an airflow from bottom to top in the demisting space and charging mist flowing through the top end thereof;
Referring to fig. 4, in the present embodiment, the airflow-driven charging device 3 includes: a fixed bracket 31, an air extraction module 32 and a charging module 33;
the fixing bracket 31 is fixed on the flat plate 11 and is positioned in the demisting space;
The air extraction module 32 is mounted on the fixed bracket 31 and is used for generating air flow from bottom to top in the demisting space; alternatively, in the present embodiment, the air extraction module 32 is an axial flow fan;
The charging module 33 is fixed on the top of the air extraction module 32 through an insulator 34 and is used for charging the mist drops flowing through; alternatively, in the present embodiment, the charging module 33 is a charger;
In this embodiment, the fixing bracket 31 is a bracket welded by metal angle iron, and is used for fixing and supporting the airflow-driven charging device 3, the height h2 of the fixing bracket is set, ventilation smoothness of the bottom of the axial flow fan needs to be ensured, the device is stable and does not shake during operation, the portability and mechanical strength of the fixing bracket 31 need to be ensured by selecting the cross-sectional area of the angle iron, equipment such as a crane is not needed during installation of the fixing bracket 31, and meanwhile, the axial flow fan and the electrode can be supported; the selection of parameters of the axial flow fan needs to ensure that the wind speed of the axial flow fan at a position 15m away from the outlet is 2m/s, and the axial flow fan can transport charged particles for 15m at least;
Referring to fig. 1, in the present embodiment, 2 airflow-driven charging devices 3 are specifically provided; it should be noted that the airflow driving device may be set to 1 or more, and the specific number and installation manner should be determined according to the actual application requirement and the airflow driving capability of the single airflow driving charging device 3, so as to ensure the demisting efficiency in the demisting space;
During operation, the airflow generated by the axial flow fan drives the bottom of the airflow to form a negative pressure area, mist outside the demisting space is guided and accelerated to enter the demisting space, then flows from bottom to top in the demisting space, in the process, partial mist is collected under the action of a corona electric field after being charged when passing through the three-electrode demisting device, and the rest partial mist is transported to a far place by the airflow after being charged at the top end of the airflow-driven charging device and is collided and condensed with the far-place mist, so that the far-place mist aggregation can be promoted while the removal efficiency of mist drops around the three-electrode demisting device is improved, and the dissipation of the far-place mist is accelerated. The power equipment in the mobile device drives the flat plate to reciprocate in the airport runway, so that fog in the whole airport runway can be eliminated.
Referring to fig. 1, in order to facilitate collection of the condensed droplets, in this embodiment, a water guiding groove 12 is further provided on the flat plate 11 at the outer side of the three-electrode demisting device 2, and the droplets collected by the three-electrode demisting device 2 are discharged through the water guiding groove 12; it should be noted that, in this embodiment, the specific number of the three-electrode demisting devices 2 and the arrangement of the shapes of the demisting spaces formed are only one alternative embodiment, and should not be construed as the only limitation of the present invention.
The airflow-driven airport defogging system provided in this embodiment further includes: a control device 4;
the control device 4 is connected with each three-electrode defogging device 2 and the airflow-driven charging device 3, and is used for monitoring the visibility in the airfield runway, and when the monitored visibility is lower than a preset visibility threshold value and defogging operation is not performed, starting the airflow-driven charging device 3 and the three-electrode defogging device 2 in sequence so as to perform defogging operation;
The control device 4 is further used for sequentially closing the three-electrode defogging device 2 and the airflow-driven charging device 3 when the monitored visibility is higher than the visibility threshold value and defogging operation is performed, and stopping the defogging operation;
considering that under normal conditions, when the visibility in an airport runway is greater than 800m, the aircraft can take off and land normally, and in order to ensure that the aircraft can take off normally, in the embodiment, the visibility threshold is set to be 800m;
referring to fig. 1, in the present embodiment, the control device 4 includes a visibility meter 41, a power module 42, and a calculation module 43;
The visibility meter 41 is connected with the calculating module 43, and is used for monitoring the visibility in the airfield runway and feeding back to the calculating module 43; in order to enable the visibility meter 41 to share a set of power supply system with other devices, in this embodiment, the visibility meter 41 is directly disposed on the mobile device 1, so as to avoid that the visibility meter 41 is too close to the three-electrode demisting device 2 to affect the monitoring accuracy of the environmental visibility, in this embodiment, the visibility meter 41 is specifically disposed on the connecting shaft 13 at one side of the flat plate 11;
The power supply module 42 comprises two power supplies, one of which is connected with the corona electrode 21 in the three-electrode demisting device 2, the other is connected with a charger in the air flow driving device, and the two power supplies are connected with the computing module 43, and the computing module 43 controls the on and off time and voltage value of the power supply;
the calculation module 43 receives the visibility fed back by the visibility meter 41, and controls the starting and closing time and the voltage value of the power supply in the power supply module 42 according to the visibility monitoring result.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. An airflow-driven airport mist eliminator system, comprising: the device comprises a moving device, a three-electrode defogging device and an airflow driving charging device;
the mobile device comprises a flat plate and can move in an airport runway;
The three-electrode demisting devices are provided with n groups, and the n three-electrode demisting devices are circumferentially arranged on the flat plate to form an n-face closed demisting space; the three-electrode demisting device is used for generating a corona electric field through corona discharge during operation; n is more than or equal to 3;
The airflow driving charging device is arranged on the flat plate and is positioned in the demisting space, and is used for generating airflow from bottom to top in the demisting space and enabling mist flowing through the top end of the airflow driving charging device to be charged;
the three-electrode demisting device comprises a corona electrode, and a ground electrode and a protective electrode which are arranged on two sides of the corona electrode and are opposite to the corona electrode;
Adjacent electrodes in the three-electrode demisting device are fixed through insulators, and the distance d2 between a corona electrode and the ground electrode is smaller than the distance d3 between the corona electrode and the protective electrode; the ground electrode and the protection electrode are directly arranged on the flat plate, and the protection electrode is positioned outside the demisting space; the corona electrode is arranged on the flat plate through an insulator;
The airflow driven charging device includes: the device comprises a fixed bracket, an air extraction module and a charging module;
the fixing bracket is fixed on the flat plate and is positioned in the demisting space;
The air extraction module is arranged on the fixed bracket and is used for generating air flow from bottom to top in the demisting space;
The charging module is fixed at the top of the air extraction module through an insulator and is used for charging the mist drops flowing through;
During operation, fog enters the defogging space from outside the defogging space under the action of the air flow, part of fog is collected under the action of a corona electric field after being charged when passing through the three-electrode defogging device, and the other part of fog is transmitted from bottom to top in the defogging space and is transported to a distance by the air flow after being charged at the top end of the air flow driving charging device, and collides with and condenses with distant fog.
2. The airflow driven airport mist eliminator system of claim 1, wherein said corona electrode comprises a first electrode frame and a corona onset electrode disposed within said first electrode frame;
the corona-forming electrode is a wire electrode, a blade electrode or a needle array electrode.
3. The airflow driven airport mist eliminator system of claim 1, wherein said ground electrode comprises a second electrode frame and a metal mesh electrode disposed within said second electrode frame;
the structure of the protective electrode is the same as that of the ground electrode.
4. An air flow driven airport defogging system according to any of claims 1 to 3, wherein a water guiding groove is further arranged on a flat plate at the outer side of the three-electrode defogging device.
5. The airflow driven airport mist eliminator system of claim 1, wherein said air extraction module is an axial flow fan.
6. The airflow driven airport mist eliminator system of claim 1, wherein said charging module is a charger.
7. The airflow driven airport mist eliminator system of claim 1, further comprising: a control device;
The control device is connected with each three-electrode defogging device and the airflow-driven charging device and is used for monitoring the visibility in the airfield runway, and when the monitored visibility is lower than a preset visibility threshold value and defogging operation is not performed, the airflow-driven charging device and the three-electrode defogging device are started successively so as to perform defogging operation;
And the control device is also used for sequentially closing the three-electrode defogging device and the air flow driving charging device to stop defogging operation when the monitored visibility is higher than the visibility threshold value and defogging operation is performed.
8. The airflow driven airport defogging system of claim 1, wherein said mobile device further comprises a power plant;
The power equipment is connected with the flat plate through a connecting shaft arranged at one side of the flat plate and is used for driving the flat plate to move in an airport runway and driving the flat plate to turn within the range of-45 degrees to 45 degrees in the horizontal direction.
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