Airport fog dispelling device and method

Abstract

The present invention relates to an airport defogging device and method, belonging to the general field of defogging. The device comprises a petal valve, a silencer section, a test section, an agglomeration section, a dehydration section, a fan section, and a control cabinet. Through a combination of high-speed airflow suction, high-sound-pressure-level sound waves within a confined space, and cyclonic defogging, the device can rapidly remove fog droplets from airport air in less than 30 minutes. Simultaneously, the defogging air is discharged through the fan outlet jet section to form a jet, creating an upward airflow around the defogging device, preventing fog backflow and ensuring effective defogging, thus safeguarding aircraft takeoff and landing.

Description

Technical Field

[0001] The invention relates to an airport fog dispelling device and method, and belongs to the general field of fog dispelling. Background Art

[0002] Currently, air transport is significantly constrained by weather. Fog is a major factor causing flight delays and threatening flight safety. How to quickly and promptly dispel fog to ensure safe takeoff and landing at airports is a topic of research worldwide.

[0003] For decades, the methods of artificial fog removal have been mainly divided into two categories: supercooled fog removal and warm fog removal. The principle of supercooled fog removal is to add substances such as methane, dry ice, or silver iodide to supercooled fog (fog with a temperature below 0°C) to increase the concentration of ice crystals in the fog, thereby increasing the size of the ice crystals to remove the fog. The basic principle of artificial warm fog removal is to burn a large amount of fuel in warm fog (fog with a temperature above 0°C) and use the heat generated to heat the foggy air, causing the temperature to rise and the air to become unsaturated, so that the fog droplets evaporate and dissipate. These fog removal methods have the disadvantages of high energy consumption, the need for manual intervention, and slow fog removal efficiency. Heavy fog usually occurs in the middle of the night and occurs very quickly. The existing fog removal methods cannot meet the needs of fast and timely fog removal. Summary of the Invention

[0004] To solve the above problems, the present invention discloses an airport fog dispelling device and method, which has a good fog dispelling effect and a function of preventing fog backflow, and can escort aircraft takeoff and landing;

[0005] The device comprises an electric petal valve (1), a silencer section (2), a test section (3), an agglomeration section (4), a dehydration section (5), a fan section (6), and a control cabinet (7); the electric petal valve (1), the silencer section (2), the test section (3), the agglomeration section (4), the dehydration section (5), and the fan section (6) are arranged in sequence and connected via flanges.

[0006] The electric petal valve (1) is a round tube turned into a square tube, the round tube end is equipped with a valve body, and the square tube end is connected to the silencer section (2);

[0007] The muffler section (2) comprises a muffler (21) and a muffler bracket (22), wherein the muffler (21) is mounted on the muffler bracket (22); the middle portion of the muffler (21) is a square tube, a micro-perforated plate is mounted inside, the inlet end is a reducing flange connected to the electric petal valve (1), and the outlet end is a reducing flange connected to the test section (3);

[0008] The test section (3) comprises a test section cavity (31), a temperature sensor (32), a humidity sensor (33), a wind speed sensor (34), a laser particle size analyzer (35), and a test section bracket (36); the test section cavity (31) and the laser particle size analyzer (35) are mounted on the test section bracket (36); the test section cavity (31) is mounted in the middle of the test section bracket (36); and the two parts of the laser particle size analyzer (35) are respectively located at both ends of the test section bracket (36); the test section cavity (31) The inlet end is a flange for connecting to the silencer section (2), and the outlet end is a flange for connecting to the agglomeration section (4); the front half of the test section cavity (31) is a square tube, and a temperature sensor (32), a humidity sensor (33), and a wind speed sensor (34) are installed side by side on the upper part of one side of the square tube. The square tube has two symmetrical test ports, which are in a straight line with the test ports of the two parts of the laser particle size analyzer (35); the back half of the test section cavity (31) is a variable diameter, which is used to match the opening size of the agglomeration section (4);

[0009] The agglomeration section (4) comprises an agglomeration section cavity (41), an agglomeration section bracket (42), an acoustic wave device (43), and an acoustic wave device bracket (44); the agglomeration section cavity (41) is a square tube, mounted on the agglomeration section bracket (42), and a reinforcing rib is welded on the outside of the agglomeration section cavity (41); the inlet end of the agglomeration section cavity (41) is a flange for connecting to the test section (3), and the outlet end is a flange for connecting to the dehydration section (5); the acoustic wave device (43) is mounted on the top of the agglomeration section cavity (41) and fixed by the acoustic wave device bracket (44); the outer surface of the agglomeration section cavity (41) is welded with a reinforcing rib; the acoustic wave device (43) is a combination of bass speakers arranged in a vertical linear array, and emits sound toward the inside of the agglomeration section cavity (41);

[0010] The dehydration section (5) comprises a dehydration section cavity (51), a dehydration section bracket (52), a demister bracket (53), a demister mounting plate (54), a cyclone demister (55), an acoustic wave measuring instrument (56), a manhole door (57), a wind vane (58), and a drain outlet (59); the dehydration section cavity (51) is mounted on the dehydration section bracket (52), and a reinforcing rib is welded on the outside of the dehydration section cavity (51); both ends of the dehydration section cavity (51) are square tubes, the inlet end is a flange for connecting to the agglomeration section (4), and the outlet end is a flange for connecting to the fan section (6); an acoustic wave measuring instrument (56) is mounted behind the inlet end flange of the dehydration section cavity (51); the middle section of the dehydration section cavity (51) maintains the same width while using an arc to expand the height, with a sinking arc at the bottom, and an opening There is a drain outlet (59), and a manhole door (57) is opened at the arc between the middle section and the outlet end of the dehydration section cavity (51), and the number of the manhole doors (57) is two and symmetrically arranged; the number of the demister brackets (53) is two, which are installed inside the dehydration section cavity (51), and the two brackets are respectively located at the two side edges of the sunken arc at the bottom of the dehydration section cavity (51); the number of the demister mounting plates (54) is eight, and every four are installed on the upper, lower, left and right sides of one demister bracket (53); the demister mounting plates (54) are provided with array-arranged demister mounting holes, and the cyclone demister (55) is installed on the two demister mounting plates (54) facing each other; the wind vane (58) is installed on the top of the dehydration section cavity (51); the cyclone demister (55) is a tubular demister with cyclone blades;

[0011] The fan section (6) comprises a fan reducer (61), a fan (62), a fan outlet jet section (63), and a fan bracket (64); the fan (62) is mounted on the fan bracket (64); the fan reducer (61) is mounted at the fan (62) inlet, and the other end is flange-connected to the dehydration section (5); the fan outlet jet section (63) is mounted at the fan outlet and faces vertically upward.

[0012] The control cabinet (7) includes a PLC controller, a power amplifier, and a frequency converter; the PLC controller is connected to a temperature sensor (32), a humidity sensor (33), a wind speed sensor (34), a laser particle size analyzer (35), and an acoustic wave measuring instrument (56), and receives measurement signals returned by the above instruments; the PLC controller is connected to a fan (62) via the frequency converter to control the start and stop and the rotation speed of the fan (62); the PLC controller is connected to an acoustic wave device (43) via a power amplifier to amplify the acoustic wave signal and transmit it to the acoustic wave device; the PLC controller is connected to an electric petal valve (1) to control the opening of the electric petal valve (1).

[0013] Preferably, the agglomeration time of the agglomeration section (4) is 1.5s, the sound pressure level is 150dB, the sound frequency is 115-200Hz, the distance between the central axes of adjacent woofers does not exceed 0.8m, and the number of the agglomeration section (4) is 8;

[0014] After the device is started, the program in the PLC controller runs and continuously reads the signals of the temperature sensor (32), the humidity sensor (33), and the laser particle size analyzer (35);

[0015] When the temperature is less than 2°C, the relative humidity is greater than 95%, and the particle size is greater than 1 μm, the PLC controller opens the electric petal valve (1), and starts the fan (62) through the frequency converter, and simultaneously starts the power amplifier, the acoustic wave device (43), the acoustic wave measuring instrument (56), and the wind speed sensor (34);

[0016] Because the wind direction changes in real time, the opening of the electric petal valve (1) and the speed of the fan (62) are adjusted in real time according to the value of the wind speed sensor (34), and the agglomeration time of the agglomeration section (4) is controlled to be 1.5 seconds. This value can be obtained by multiplying the value of the wind speed sensor (34) by the cross-sectional area ratio of the test section (3) and the agglomeration section (4);

[0017] Due to the interference of foggy air in the mist dispelling device, the PLC controller adjusts the output power of the sound wave device (43) in real time through the power amplifier according to the sound pressure level data measured by the sound wave measuring instrument (56), ensuring that the measured sound pressure level data is above 150dB;

[0018] The agglomerated water droplets are removed by a cyclone demister (55) and discharged from a drain outlet (59);

[0019] The device is in continuous operation. When the relative humidity is measured to be less than 95% and the particle size is less than 1 μm, the power amplifier, the acoustic wave device (43), the acoustic wave measuring instrument (56), and the wind speed sensor (34) are stopped, the electric petal valve (1) is closed, and the signals of the temperature sensor (32), the humidity sensor (33), and the laser particle size analyzer (35) are continuously monitored.

[0020] Beneficial effect: The present invention can quickly remove the fog droplets in the airport air through the combination of high-speed airflow absorption, high sound pressure level sound waves in a closed space and swirl demisting, and the time is less than 30 minutes; at the same time, the demisted air is discharged through the fan outlet jet section (63) to form a jet, forming an upward airflow around the demisting device, preventing the fog from flowing back, ensuring the demisting effect, and can escort the take-off and landing of the aircraft.

[0021] The working principle of the above device is as follows:

[0022] 1. According to measurements, fog in the air contains particles with a diameter of 1μm to 10μm. A significant increase in particle concentration can affect airport fog control visibility. When high-pressure sound waves are applied to foggy air, the particles can collide with each other and form larger condensation nuclei. Due to their larger relative area, condensation nuclei can absorb more particles, causing the particles to transform from small droplets into large droplets, which are then removed by the cyclone demister.

[0023] 2. The laser particle size analyzer can measure the particle size distribution of particles in the fog and adjust the frequency of the agglomeration sound wave according to the measured particle size D50. There is a large correlation between the agglomeration sound wave frequency and the particle size. According to experimental research, for particles with a size of 1μm to 10μm in foggy air, the required agglomeration sound wave frequency is 115-220Hz.

[0024] 3. There is a significant correlation between the sound pressure of the agglomeration sound wave and the agglomeration effect. According to experimental research, the use of sound waves alone can only produce a certain effect within a range of 1.5 meters from the sound source. As the distance increases, the sound pressure decreases, and the agglomeration effect also decreases. The internal pipe of this device is a traveling wave tube structure. The eight sound wave devices can generate stable high sound pressure level sound waves inside. By providing a large and stable high sound pressure agglomeration environment, combined with the fan exhaust, it can continuously and stably agglomerate small droplets in the air.

[0025] 4. The cyclone demister can make the tiny water droplets in the air further mix and agglomerate after agglomeration, and generate a larger centrifugal force during the cyclone process to remove them.

[0026] 5. The fog-free air at the fan outlet is ejected upward at high speed, forming an updraft. This airflow drives the surrounding air upward to prevent fog from flowing back;

[0027] 6. The muffler can prevent high sound pressure noise from leaking from the equipment inlet, ensuring the comfort of people outside the equipment.

[0028] 7. Combining the above principles, the invention can quickly remove the fog droplets in the airport air in less than 30 minutes through the combination of high-speed airflow absorption, high sound pressure level sound field formed by sound waves of a specific frequency band in the sealed pipeline, and swirl demisting; at the same time, the defogged air is discharged through the jet section of the fan outlet to form a jet, forming an upward airflow around the demisting device, preventing the backflow of fog, ensuring the demisting effect, and can escort the take-off and landing of aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Figure 1The present invention is a schematic structural diagram of an airport fog dispelling device, which comprises: an electric petal valve (1), a muffler section (2), a test section (3), an agglomeration section (4), a dehydration section (5), a fan section (6), and a control cabinet (7);

[0031] Figure 2 The invention discloses a three-dimensional model diagram of an airport mist dispelling device after removing the side panels and reinforcing ribs of the dehydration section, comprising: a muffler (21), a muffler bracket (22), a test section cavity (31), a temperature sensor (32), a humidity sensor (33), a wind speed sensor (34), a laser particle size analyzer (35), a test section bracket (36), an agglomeration section cavity (41), an agglomeration section bracket (42), an acoustic wave device (43), an acoustic wave device bracket (44), a dehydration section cavity (51), a dehydration section bracket (52), a demister bracket (53), a demister mounting plate (54), a cyclone demister (55), an acoustic wave measuring instrument (56), a manhole door (57), a wind vane (58), a drain outlet (59), a fan reducer (61), a fan (62), a fan outlet jet section (63), a fan bracket (64), and a control cabinet (7);

[0032] Figure 3 This is the control diagram of the present invention

[0033] Figure 4 This is the operation flow chart of the present invention DETAILED DESCRIPTION

[0034] Example:

[0035] like Figure 1 As shown, an airport fog dispelling device provided by this embodiment comprises: an electric petal valve (1), a silencer section (2), a test section (3), an agglomeration section (4), a dehydration section (5), a fan section (6), and a control cabinet (7); the electric petal valve (1), the silencer section (2), the test section (3), the agglomeration section (4), the dehydration section (5), and the fan section (6) are arranged in sequence and connected by flanges.

[0036] The electric petal valve (1) is a round tube turned into a square tube, the round tube end is equipped with a valve body, and the square tube end is connected to the silencer section (2);

[0037] The muffler section (2) comprises a muffler (21) and a muffler bracket (22), wherein the muffler (21) is mounted on the muffler bracket (22); the middle portion of the muffler (21) is a square tube, a micro-perforated plate is mounted inside, the inlet end is a reducing flange connected to the electric petal valve (1), and the outlet end is a reducing flange connected to the test section (3);

[0038] The test section (3) comprises a test section cavity (31), a temperature sensor (32), a humidity sensor (33), a wind speed sensor (34), a laser particle size analyzer (35), and a test section bracket (36); the test section cavity (31) and the laser particle size analyzer (35) are mounted on the test section bracket (36); the test section cavity (31) is mounted in the middle of the test section bracket (36); and the two parts of the laser particle size analyzer (35) are respectively located at both ends of the test section bracket (36); the test section cavity (31) The inlet end is a flange for connecting to the silencer section (2), and the outlet end is a flange for connecting to the agglomeration section (4); the front half of the test section cavity (31) is a square tube, and a temperature sensor (32), a humidity sensor (33), and a wind speed sensor (34) are installed side by side on the upper part of one side of the square tube. The square tube has two symmetrical test ports, which are in a straight line with the test ports of the two parts of the laser particle size analyzer (35); the back half of the test section cavity (31) is a variable diameter, which is used to match the opening size of the agglomeration section (4);

[0039] The agglomeration section (4) comprises an agglomeration section cavity (41), an agglomeration section bracket (42), an acoustic wave device (43), and an acoustic wave device bracket (44); the agglomeration section cavity (41) is a square tube, mounted on the agglomeration section bracket (42), and a reinforcing rib is welded on the outside of the agglomeration section cavity (41); the inlet end of the agglomeration section cavity (41) is a flange for connecting to the test section (3), and the outlet end is a flange for connecting to the dehydration section (5); the acoustic wave device (43) is mounted on the top of the agglomeration section cavity (41) and fixed by the acoustic wave device bracket (44); the outer surface of the agglomeration section cavity (41) is welded with a reinforcing rib; the acoustic wave device (43) is a combination of bass speakers arranged in a vertical linear array, and emits sound toward the inside of the agglomeration section cavity (41);

[0040] The dehydration section (5) comprises a dehydration section cavity (51), a dehydration section bracket (52), a demister bracket (53), a demister mounting plate (54), a cyclone demister (55), an acoustic wave measuring instrument (56), a manhole door (57), a wind vane (58), and a drain outlet (59); the dehydration section cavity (51) is mounted on the dehydration section bracket (52), and a reinforcing rib is welded on the outside of the dehydration section cavity (51); both ends of the dehydration section cavity (51) are square tubes, the inlet end is a flange for connecting to the agglomeration section (4), and the outlet end is a flange for connecting to the fan section (6); an acoustic wave measuring instrument (56) is mounted behind the inlet end flange of the dehydration section cavity (51); the middle section of the dehydration section cavity (51) maintains the same width while using an arc to expand the height, with a sinking arc at the bottom, and an opening There is a drain outlet (59), and a manhole door (57) is opened at the arc between the middle section and the outlet end of the dehydration section cavity (51), and the number of the manhole doors (57) is two and symmetrically arranged; the number of the demister brackets (53) is two, which are installed inside the dehydration section cavity (51), and the two brackets are respectively located at the two side edges of the sunken arc at the bottom of the dehydration section cavity (51); the number of the demister mounting plates (54) is eight, and every four are installed on the upper, lower, left and right sides of one demister bracket (53); the demister mounting plates (54) are provided with array-arranged demister mounting holes, and the cyclone demister (55) is installed on the two demister mounting plates (54) facing each other; the wind vane (58) is installed on the top of the dehydration section cavity (51); the cyclone demister (55) is a tubular demister with cyclone blades;

[0041] The fan section (6) comprises a fan reducer (61), a fan (62), a fan outlet jet section (63), and a fan bracket (64); the fan (62) is mounted on the fan bracket (64); the fan reducer (61) is mounted at the fan (62) inlet, and the other end is flange-connected to the dehydration section (5); the fan outlet jet section (63) is mounted at the fan outlet and faces vertically upward.

[0042] The control cabinet (7) includes a PLC controller, a power amplifier, and a frequency converter; the PLC controller is connected to a temperature sensor (32), a humidity sensor (33), a wind speed sensor (34), a laser particle size analyzer (35), and an acoustic wave measuring instrument (56), and receives measurement signals returned by the above instruments; the PLC controller is connected to a fan (62) via the frequency converter to control the start and stop and the rotation speed of the fan (62); the PLC controller is connected to an acoustic wave device (43) via a power amplifier to amplify the acoustic wave signal and transmit it to the acoustic wave device; the PLC controller is connected to an electric petal valve (1) to control the opening of the electric petal valve (1).

[0043] Preferably, the agglomeration time of the agglomeration section (4) is 1.5s, the sound pressure level is 150dB, the sound frequency is 115-200Hz, the distance between the central axes of adjacent woofers does not exceed 0.8m, and the number of the agglomeration section (4) is 8;

[0044] After the device is started, the program in the PLC controller runs and continuously reads the signals of the temperature sensor (32), the humidity sensor (33), and the laser particle size analyzer (35);

[0045] When the temperature is less than 2°C, the relative humidity is greater than 95%, and the particle size is greater than 1 μm, the PLC controller opens the electric petal valve (1), and starts the fan (62) through the frequency converter, and simultaneously starts the power amplifier, the acoustic wave device (43), the acoustic wave measuring instrument (56), and the wind speed sensor (34);

[0046] Because the wind direction changes in real time, the opening of the electric petal valve (1) and the speed of the fan (62) are adjusted in real time according to the value of the wind speed sensor (34), and the agglomeration time of the agglomeration section (4) is controlled to be 1.5 seconds. This value can be obtained by multiplying the value of the wind speed sensor (34) by the cross-sectional area ratio of the test section (3) and the agglomeration section (4);

[0047] Due to the interference of foggy air in the mist dispelling device, the PLC controller adjusts the output power of the sound wave device (43) in real time through the power amplifier according to the sound pressure level data measured by the sound wave measuring instrument (56), ensuring that the measured sound pressure level data is above 150dB;

[0048] The agglomerated water droplets are removed by a cyclone demister (55) and discharged from a drain outlet (59);

[0049] The device is in continuous operation. When the relative humidity is measured to be less than 95% and the particle size is less than 1 μm, the power amplifier, the acoustic wave device (43), the acoustic wave measuring instrument (56), and the wind speed sensor (34) are stopped, the electric petal valve (1) is closed, and the signals of the temperature sensor (32), the humidity sensor (33), and the laser particle size analyzer (35) are continuously monitored.

[0050] Comparative Example 1:

[0051] The difference between Comparative Example 1 and Example 1 is that sound waves are used alone for demisting.

[0052] The device comprises: an acoustic wave device (43), an acoustic wave measuring instrument (56), and a control cabinet (7); when the device is used to dispel fog on foggy days, the acoustic wave device (43) is turned on, the sound pressure level is controlled to be 150dB, and fog droplets are deposited only within 1.5m near the agglomeration section (4);

[0053] Conclusion: The comparison device has no fog-repelling effect on a large area of fog.

[0054] Comparative Example 2:

[0055] The structure of Comparative Example 2 is basically the same as that of Example 1, except that the cyclone demister (55) is removed based on the present invention, and a set of laser particle size analyzers is added at the tail.

[0056] After the equipment is started, the program in the PLC controller runs and continuously reads the signals of the temperature sensor (32), the humidity sensor (33), and the laser particle size analyzer (35); when the temperature is less than 2°C, the relative humidity is greater than 95%, and the particle size is greater than 1 μm, the PLC controller opens the electric petal valve (1), and starts the fan (62) through the frequency converter, and simultaneously starts the power amplifier, the acoustic wave device (43), the acoustic wave measuring instrument (56), and the wind speed sensor (34); the agglomeration sound pressure level is controlled to be 150 dB, and the particle size at the outlet of the fan outlet jet section (63) is measured to increase, and only a small amount of water is discharged from the drain outlet (59);

[0057] Conclusion: When the foggy air is treated by the comparative device, the demisting effect is not obvious without the cyclone demister.

[0058] Comparative Example 3:

[0059] The structure of comparative example 3 is basically the same as that of embodiment 1, except that: based on the present invention, the fan outlet jet section (63) discharges horizontally.

[0060] After the equipment is started, the program in the PLC controller runs and continuously reads the signals of the temperature sensor (32), the humidity sensor (33), and the laser particle size analyzer (35); when the temperature is less than 2°C, the relative humidity is greater than 95%, and the particle size is greater than 1μm, the PLC controller opens the electric petal valve (1), and starts the fan (62) through the frequency converter, and simultaneously starts the power amplifier, the sound wave device (43), the sound wave measuring instrument (56), and the wind speed sensor (34); and the agglomeration sound pressure level is controlled to be 150dB.

[0061] Since the fan outlet jet section (63) is arranged horizontally, the demisting air is discharged horizontally and cannot affect the environment around the air inlet, so that the mist flows continuously toward the device, and the device cannot provide a stable demisting environment.

[0062] Conclusion: When the exhaust pipe is horizontal, it cannot provide a stable mist removal environment.

[0063] Comparative Example 4:

[0064] The structure of Comparative Example 4 is basically the same as that of Example 1, except that it is detachable and can be used to perform defogging tests using sound sources of different frequencies.

[0065] After the device is started, the program in the PLC controller runs and continuously reads the signals of the temperature sensor (32), humidity sensor (33), and laser particle size analyzer (35); when the temperature is less than 2°C, the relative humidity is greater than 95%, and the particle size is greater than 1μm, the PLC controller opens the electric petal valve (1) and starts the fan (62) through the frequency converter, and simultaneously starts the power amplifier, the acoustic wave device (43), the acoustic wave measuring instrument (56), and the wind speed sensor (34); and controls the agglomeration sound pressure level to 150dB. The PLC uses different acoustic wave frequencies for agglomeration according to the built-in program. When using acoustic wave frequencies above 220Hz or below 115Hz for mist removal, the effect is not obvious.

[0066] Conclusion: When using sound wave frequencies above 220Hz or below 115Hz to dispel fog, the effect is not obvious.

[0067] The present invention is not limited to the specific technical solutions described in the above embodiments, and all technical solutions formed by equivalent replacement are within the protection scope required by the present invention.

Claims

1. An airport fog dispelling device, characterized by: The device comprises an electric petal valve (1), a muffler section (2), a test section (3), an agglomeration section (4), a dehydration section (5), a fan section (6) and a control cabinet (7); the electric petal valve (1), the muffler section (2), the test section (3), the agglomeration section (4), the dehydration section (5) and the fan section (6) are arranged in sequence and connected by flanges; The electric petal valve (1) is a round tube turned into a square tube, the round tube end is equipped with a valve body, and the square tube end is connected to the silencer section (2); The muffler section (2) comprises a muffler (21) and a muffler bracket (22), wherein the muffler (21) is mounted on the muffler bracket (22); the middle portion of the muffler (21) is a square tube, a micro-perforated plate is mounted inside, the inlet end is a reducing flange connected to the electric petal valve (1), and the outlet end is a reducing flange connected to the test section (3); The test section (3) comprises a test section cavity (31), a temperature sensor (32), a humidity sensor (33), a wind speed sensor (34), a laser particle size analyzer (35) and a test section bracket (36); the test section cavity (31) and the laser particle size analyzer (35) are mounted on the test section bracket (36), the test section cavity (31) is mounted in the middle of the test section bracket (36), and the two parts of the laser particle size analyzer (35) are respectively located at both ends of the test section bracket (36); the test section cavity (31) The inlet end is a flange for connecting to the silencer section (2), and the outlet end is a flange for connecting to the agglomeration section (4); the front half of the test section cavity (31) is a square tube, and a temperature sensor (32), a humidity sensor (33) and a wind speed sensor (34) are installed side by side on the upper part of one side of the square tube. The square tube has two symmetrical test ports, which are in a straight line with the test ports of the two parts of the laser particle size analyzer (35); the back half of the test section cavity (31) is a variable diameter, which is used to match the opening size of the agglomeration section (4); The agglomeration section (4) comprises an agglomeration section cavity (41), an agglomeration section bracket (42), an acoustic wave device (43) and an acoustic wave device bracket (44); the agglomeration section cavity (41) is a square tube, mounted on the agglomeration section bracket (42), and a reinforcing rib is welded on the outside of the agglomeration section cavity (41); the inlet end of the agglomeration section cavity (41) is a flange for connecting to the test section (3), and the outlet end is a flange for connecting to the dehydration section (5); the acoustic wave device (43) is mounted on the top of the agglomeration section cavity (41) and fixed by the acoustic wave device bracket (44); the outer surface of the agglomeration section cavity (41) is welded with a reinforcing rib; the acoustic wave device (43) is a combination of bass speakers arranged in a vertical linear array, and emits sound toward the inside of the agglomeration section cavity (41); The dehydration section (5) comprises a dehydration section cavity (51), a dehydration section bracket (52), a demister bracket (53), a demister mounting plate (54), a cyclone demister (55), an acoustic wave measuring instrument (56), a manhole door (57), a wind vane (58) and a drain outlet (59); the dehydration section cavity (51) is mounted on the dehydration section bracket (52), and a reinforcing rib is welded on the outside of the dehydration section cavity (51); both ends of the dehydration section cavity (51) are square tubes, the inlet end is a flange for connecting to the agglomeration section (4), and the outlet end is a flange for connecting to the fan section (6); an acoustic wave measuring instrument (56) is installed behind the inlet end flange of the dehydration section cavity (51); the middle section of the dehydration section cavity (51) maintains the same width while using an arc to expand the height, with a sinking arc at the bottom, and is opened. There is a drain outlet (59), and a manhole door (57) is opened at the arc between the middle section and the outlet end of the dehydration section cavity (51), and the number of the manhole doors (57) is two and symmetrically arranged; the number of the demister brackets (53) is two, which are installed inside the dehydration section cavity (51), and the two brackets are respectively located at the two side edges of the sunken arc at the bottom of the dehydration section cavity (51); the number of the demister mounting plates (54) is eight, and every four are installed on the upper, lower, left and right sides of one demister bracket (53); the demister mounting plates (54) are provided with array-arranged demister mounting holes, and the cyclone demister (55) is installed on the two demister mounting plates (54) facing each other; the wind vane (58) is installed on the top of the dehydration section cavity (51); the cyclone demister (55) is a tubular demister with cyclone blades; The fan section (6) includes a fan reducer (61), a fan (62), a fan outlet jet section (63) and a fan bracket (64); the fan (62) is mounted on the fan bracket (64); the fan reducer (61) is mounted at the fan (62) inlet, and the other end is flange-connected to the dehydration section (5); the fan outlet jet section (63) is mounted at the fan outlet and faces vertically upwards; The control cabinet (7) includes a PLC controller, a power amplifier and a frequency converter; the PLC controller is connected to a temperature sensor (32), a humidity sensor (33), a wind speed sensor (34), a laser particle size analyzer (35) and a sonic wave measuring instrument (56), and receives measurement signals returned by the temperature sensor (32), the humidity sensor (33), the wind speed sensor (34), the laser particle size analyzer (35) and the sonic wave measuring instrument (56); the PLC controller is connected to a fan (62) via the frequency converter to control the start and stop and the rotation speed of the fan (62); the PLC controller is connected to a sonic wave device (43) via the power amplifier to amplify the sonic wave signal and transmit it to the sonic wave device; the PLC controller is connected to an electric petal valve (1) to control the opening of the electric petal valve (1); Except for the inlet of the electric petal valve (1), the outlet of the fan outlet jet section (63), and the drain outlet (59), the other parts of the airport mist dispelling device are in a sealed state.

2. The airport fog dispelling device according to claim 1, characterized in that: The agglomeration time of the agglomeration section (4) is 1.5s, the sound pressure level is 150dB, the sound frequency is 115-200Hz, the distance between the central axes of adjacent woofers does not exceed 0.8m, and the number of the agglomeration section (4) is 8.

3. The method for dispelling fog of an airport fog dispelling device according to claim 1, characterized in that: The steps include: S1: After the device is started, the program in the PLC controller runs and continuously reads the signals of the temperature sensor (32), humidity sensor (33) and laser particle size analyzer (35); S2: When the temperature is less than 2°C, the relative humidity is greater than 95%, and the particle size is greater than 1 μm, the PLC controller opens the electric petal valve (1), and starts the fan (62) through the frequency converter, and simultaneously starts the power amplifier, the acoustic wave device (43), the acoustic wave measuring instrument (56), and the wind speed sensor (34); S3: Due to the real-time change of wind direction, the opening of the electric petal valve (1) and the speed of the fan (62) are adjusted in real time according to the value of the wind speed sensor (34), and the agglomeration time of the agglomeration section (4) is controlled to be 1.5s. This value can be obtained by multiplying the value of the wind speed sensor (34) by the cross-sectional area ratio of the test section (3) and the agglomeration section (4); S4: Due to the interference of foggy air in the mist dispelling device, the PLC controller adjusts the output power of the acoustic wave device (43) in real time through the power amplifier according to the sound pressure level data measured by the acoustic wave measuring instrument (56), ensuring that the measured sound pressure level data is above 150dB; S5: The agglomerated water droplets are removed by a cyclone demister (55) and discharged from a drain outlet (59); S6: The equipment continues to operate. When the relative humidity is measured to be less than 95% and the particle size is less than 1 μm, the power amplifier, the acoustic wave device (43), the acoustic wave measuring instrument (56) and the wind speed sensor (34) are stopped, the electric petal valve (1) is closed and the signals of the temperature sensor (32), the humidity sensor (33) and the laser particle size analyzer (35) are continuously monitored.

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