A haze elimination operation system and method based on aircraft platform

Abstract

The present invention discloses a haze elimination operation system and method based on an aircraft platform, the system comprising: an aircraft and a hygroscopic dry powder spreading device and an in-line flame strip mounting device carried on the aircraft, the hygroscopic dry powder spreading device comprising a hygroscopic agent tank body and a gas source tank connected to the hygroscopic agent tank body, the gas source tank providing dry gas for blowing out the hygroscopic agent tank body, and a discharge pipe being arranged at the bottom of the hygroscopic agent tank body; the in-line flame strip mounting device comprising an ignition controller, a flame strip fixing frame and a plurality of catalyst flame strips, the flame strip fixing frame being fixedly connected to the aircraft through a supporting fixed arm, a plurality of catalyst flame strips being evenly arranged on the flame strip fixing frame, and the ignition controller being connected to the plurality of catalyst flame strips through a cable. The haze elimination operation system and method based on an aircraft platform provided by the present invention adopts two types of cold and warm fog elimination equipment carried on the aircraft to realize functional integration, improve haze elimination efficiency, and have stronger applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of artificial weather influencing operations, and in particular to a haze elimination operation system and method based on an aircraft platform. Background Art

[0002] With the rapid development of modern industry, the concentration of pollutant particles generated by factory emissions, automobile exhaust, and garbage incineration has increased year by year. my country is now facing the problem of increasingly severe smog pollution. At present, smog prevention and control generally adopts two methods: one is preventive measures, such as closing factories, restricting cars, promoting new energy and other emission control measures; the other is governance measures, that is, using artificial weather modification technology measures to achieve the effect of eliminating fog and reducing smog.

[0003] In autumn and winter, haze often exists in the low-altitude atmosphere accompanied by fog. The distribution height of haze is generally below 1km. According to the temperature, it is divided into cold fog (haze) (t<0℃) and warm fog (haze) (t>0℃). According to the nature of fog, warm fog is generally eliminated by introducing hygroscopic agents into the fog, such as calcium chloride, sodium chloride and other hygroscopic salts, so that hygroscopic particles adsorb fog droplets to become larger and settle; or by using mechanical disturbance methods, such as using helicopter propellers to stir the fog top to produce up and down convection to disperse the fog; or by using heating evaporation methods, using jet engines to create dry warm air to evaporate fog droplets. Eliminating supercooled fog mainly depends on the Bergeron process. When ice crystals, supercooled water droplets and water vapor coexist, because the saturated water vapor pressure of the ice surface is lower than that of the water surface, water vapor will continuously transform from supercooled water droplets to ice crystals, causing supercooled water droplets to evaporate. Cold fog elimination is generally achieved by using aircraft to spread artificial ice nuclei, liquid nitrogen, dry ice, etc. in the fog.

[0004] The above-mentioned cold and warm mist elimination methods have the following defects: the heating evaporation method has a high cost, the mechanical stirring method has a limited impact range, and the cold and warm mist elimination methods require different platforms to be used for operations. Summary of the invention

[0005] The purpose of the present invention is to provide a haze elimination operation system and method based on an aircraft platform, so as to overcome the problems and shortcomings in the existing haze elimination operations, adopt an aircraft as a platform for aerial operations, carry two types of cold and warm fog elimination equipment, realize functional integration, improve haze elimination efficiency, and have stronger applicability.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A haze elimination operation system based on an aircraft platform, the system comprising: an aircraft and a hygroscopic dry powder spreading device and an in-line flame strip mounting device carried on the aircraft, the hygroscopic dry powder spreading device comprising a hygroscopic agent tank body and an air source tank connected to the hygroscopic agent tank body, the hygroscopic agent tank body is provided with a rotating blade, the rotating blade is connected to a motor drive, the air source tank provides dry gas for the hygroscopic agent tank body to blow out the hygroscopic agent, and a discharge pipe is provided at the bottom of the hygroscopic agent tank body;

[0008] The in-line flame bar mounting device includes an ignition controller, a flame bar fixing frame and a plurality of catalyst flame bars. The flame bar fixing frame is fixedly connected to the aircraft via a supporting fixing arm. A plurality of catalyst flame bars are evenly arranged on the flame bar fixing frame. The ignition controller is connected to the plurality of catalyst flame bars via a cable.

[0009] Optionally, the desiccant tank is connected to the gas source tank via an air pipeline, and an air control valve is provided on the air pipeline.

[0010] Optionally, the hygroscopic dry powder spreading device further comprises a power module and a tank bracket, the power module provides power to the motor, and the hygroscopic agent tank is fixedly mounted on the aircraft via the tank bracket.

[0011] Optionally, the catalyst flame strip includes a cold cloud flame strip and a warm cloud flame strip, the cold cloud flame strip carries a cold cloud catalyst, and the warm cloud flame strip carries a warm cloud catalyst.

[0012] Optionally, the haze elimination system based on an aircraft platform also includes a ground command center. A wireless communication module is provided on the aircraft. The aircraft is communicatively connected to the ground command center via the wireless communication module. The ground command center is also communicatively connected to a meteorological radar and a sonde for acquiring meteorological data.

[0013] Optionally, the aircraft is a Yun-5B aircraft.

[0014] The present invention also provides a haze elimination method based on an aircraft platform, which is applied to the above-mentioned haze elimination system based on an aircraft platform, and comprises the following steps:

[0015] S1, obtaining meteorological data, determining whether the meteorological data meets the conditions for haze elimination operations, and determining the amount of moisture absorbent and catalyst flame strips to be carried for haze elimination operations;

[0016] S2, preset the aircraft operation route and flight altitude according to wind direction, wind speed and pollutant layer height;

[0017] S3, prepare the aircraft for takeoff, assemble the catalyst flame strip according to the determined carrying amount and conduct ground test, and load the desiccant into the desiccant tank;

[0018] S4: The aircraft takes off according to the preset operation route, flies to the operation area, and starts to spread catalysts and desiccant to eliminate haze. The ground command center simultaneously monitors meteorological data and air quality data, and conducts air index trend analysis;

[0019] S5: According to the above air index trend, determine the next operation volume and operation duration, and continue the operation until the air index meets the current operation target;

[0020] S6, conduct an evaluation and analysis of the operation effect of this operation and generate a record of the haze elimination operation.

[0021] Optionally, in step S1, obtaining meteorological data, determining whether the meteorological data meets the conditions for the haze elimination operation, and determining the carrying amount of the hygroscopic agent and the catalyst flame strip for the haze elimination operation specifically include:

[0022] Obtain meteorological index and air quality index through meteorological detection and environmental monitoring methods, and judge whether the conditions for haze elimination operations are met based on the above indexes;

[0023] Determine the number of cold cloud flame strips and warm cloud flame strips and the weight of the desiccant.

[0024] Optionally, the air quality index (AQI) reaches (150) or above, meeting the conditions for haze elimination operations; when the ground temperature t0 < 0°C and the relative humidity > 60%, carry cold cloud flame strips, warm cloud flame strips or desiccant, and operate mainly with cold cloud flame strips; when the ground temperature 0°C ≤ t0 < 10°C and the relative humidity > 60%, carry warm cloud flame strips and desiccant for operations.

[0025] Optionally, in step S2, the flight route area of ​​the aircraft is the upwind area of ​​the polluted area, and the flight route is an 8-shaped flight perpendicular to the wind direction.

[0026] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: the fog and haze elimination operation system and method based on the aircraft platform provided by the present invention adopts the aircraft as the platform for operation, and two kinds of spreading devices, namely the hygroscopic dry powder spreading device and the in-line flame strip mounting device, are installed on the aircraft for operation, and the hygroscopic agent, the cold cloud catalyst and the warm cloud catalyst can be spread at the same time, and the two functions of cold and warm fog elimination are combined; the operation aircraft establishes real-time communication with the ground command center through the wireless communication module, and uses the ground command center to coordinate the completion of meteorological data monitoring, air quality monitoring, route planning, flight plan declaration, operation instruction issuance, etc., and the aircraft completes the fog and haze elimination operation; among them, the warm cloud flame strip, the cold cloud smoke strip and the hygroscopic agent can adjust the operation volume at any time, and can adapt to the operation requirements under different climatic conditions. In addition, by using the aircraft as the operation platform, the design schemes at different altitudes can be adapted to the fog and haze elimination requirements in different regions, and the applicability is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 It is a schematic structural diagram of a hygroscopic dry powder spreading device according to an embodiment of the present invention;

[0029] Figure 2 It is a structural schematic diagram of an in-line flame strip mounting device according to an embodiment of the present invention;

[0030] Figure 3 This is a flow chart of the haze elimination method based on an aircraft platform of the present invention;

[0031] Figure 4 This is a schematic diagram of an aircraft route according to an embodiment of the present invention;

[0032] Reference numerals: 1. hygroscopic dry powder spreading device; 101. power module; 102. motor; 103-tank support; 104. desiccant tank; 105. air pipeline; 106. air control valve; 107. air source tank; 108. discharge pipe;

[0033] 2. In-line flame strip mounting device; 201. Ignition controller; 202. Cable; 203. Catalyst flame strip; 204. Flame strip fixing frame; 205. Support fixing arm. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The purpose of the present invention is to provide a haze elimination operation system and method based on an aircraft platform, which uses an aircraft as a platform for aerial operations and is equipped with two types of equipment, cold and warm fog elimination, to achieve functional integration, improve haze elimination efficiency, and have stronger applicability.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1 to Figure 2As shown, the fog and haze elimination operation system based on the aircraft platform provided by the embodiment of the present invention includes: an aircraft and a hygroscopic dry powder spreading device 1 and an in-line flame strip mounting device 2 carried on the aircraft, the hygroscopic dry powder spreading device 1 includes a hygroscopic agent tank body 104 and an air source tank 107 connected to the hygroscopic agent tank body, the hygroscopic agent tank body 104 is provided with a rotating blade, the rotating blade is connected to the motor 102, and the air source tank 107 provides dry air for the hygroscopic agent tank body 104. The desiccant tank 104 is provided with a discharge pipe 108 at the bottom thereof; the desiccant tank 104 is connected to the gas source tank 107 through an air pipeline 105, and an air control valve 106 is provided on the air pipeline 105; the hygroscopic dry powder spreading device further includes a power module 101 and a tank bracket 103, the power module 101 provides power for the motor 102, and the desiccant tank 104 is fixedly arranged on the aircraft through the tank bracket 103;

[0038] The in-line flame strip mounting device 2 includes an ignition controller 201, a flame strip fixing frame 204 and a plurality of catalyst flame strips 203. The flame strip fixing frame 204 is fixedly connected to the aircraft via a supporting fixing arm 205. A plurality of catalyst flame strips 203 are evenly arranged on the flame strip fixing frame 204. The ignition controller 201 is connected to the plurality of catalyst flame strips 203 via a cable 202.

[0039] The catalyst flame strip 203 includes a cold cloud flame strip and a warm cloud flame strip. The cold cloud flame strip carries a cold cloud catalyst, and the warm cloud flame strip carries a warm cloud catalyst.

[0040] The haze elimination system based on an aircraft platform also includes a ground command center. The aircraft is provided with a wireless communication module, such as a 4G / 3G network communication module. The aircraft is communicatively connected to the ground command center via the wireless communication module. The ground command center is also communicatively connected to a weather radar and a sounding instrument for acquiring weather data.

[0041] The aircraft is a Yun-5B aircraft.

[0042] The principle of the hygroscopic dry powder spreading device is that the motor 102 drives the rotating blades inside the hygroscopic agent tank 104 to rotate, so that the hygroscopic agent is in a suspended state inside the tank, and the air source tank 107 passes dry gas into the hygroscopic agent tank 104 through the air pipeline 105 to blow the hygroscopic agent out of the discharge pipe 108. The air circuit control valve 106 can adjust the gas flow rate to indirectly control the hygroscopic agent spreading speed. During operation, the on-board operator operates and controls to complete the spreading and dispersion of the hygroscopic agent.

[0043] In the in-line flame strip mounting device, the catalyst flame strip 203 is fixed on the flame strip fixing frame 204, the flame strip fixing frame 204 is connected to the aircraft through the supporting fixing arm 205, and the ignition controller 201 is connected to the flame strip mounting device through the cable 202. During operation, the controller is operated by the operator on the aircraft.

[0044] like Figure 3 As shown, the present invention also provides a haze elimination method based on an aircraft platform, which is applied to the above-mentioned haze elimination system based on an aircraft platform, and includes the following steps:

[0045] S1, obtaining meteorological data, determining whether the meteorological data meets the conditions for haze elimination operations, and determining the amount of moisture absorbent and catalyst flame strips to be carried for haze elimination operations;

[0046] S2, preset the aircraft operation route and flight altitude according to wind direction, wind speed and pollutant layer height;

[0047] S3, prepare the aircraft for takeoff, assemble the catalyst flame strip according to the determined carrying amount and conduct ground test, and load the desiccant into the desiccant tank;

[0048] S4: The aircraft takes off according to the preset operation route, flies to the operation area, and starts to spread catalysts and desiccant to eliminate haze. The ground command center simultaneously monitors meteorological data and air quality data, and conducts air index trend analysis;

[0049] S5: According to the above air index trend, determine the next operation volume and operation duration, and continue the operation until the air index meets the current operation target;

[0050] S6, conduct an evaluation and analysis of the operation effect of this operation and generate a record of the haze elimination operation.

[0051] Wherein, in the step S1, meteorological data is obtained, whether the meteorological data meets the conditions for the haze elimination operation is determined, and the carrying amount of the hygroscopic agent and the catalyst flame strip for the haze elimination operation is determined, specifically including:

[0052] Obtain meteorological index and air quality index through meteorological detection and environmental monitoring methods, and judge whether the conditions for haze elimination operations are met based on the above indexes;

[0053] Determine the number of cold cloud flame strips and warm cloud flame strips and the weight of the desiccant.

[0054] Among them, the air quality index reaches above 180 and shows an upward trend, meeting the conditions for eliminating haze operations; when the ground temperature t0<0℃, relative humidity>60%, carry 35 cold cloud flame strips, 5 warm cloud flame strips, and 50kg of desiccant; when the ground temperature 0℃≤t0<10℃, relative humidity>60%, carry 5 cold cloud flame strips, 35 warm cloud flame strips, and 100kg of desiccant.

[0055] In step S2, the flight route of the aircraft is in the upwind area of ​​the polluted area, and the flight route is in an 8-shaped circle perpendicular to the wind direction.

[0056] The above-mentioned meteorological data are obtained by obtaining data such as air pressure, temperature and humidity, wind direction, and wind speed through meteorological radar, sounding instrument, ground station, etc.; the air quality monitoring data comes from national environmental monitoring points and third-party monitoring points; the route planning method and process are shown in operation process S2. The aircraft is equipped with a GPS / Beidou positioning module to ensure that operations can be carried out according to the established route.

[0057] In this embodiment, the northwest wind, the horizontal wind speed at high altitude is 3m / s, the vertical wind speed is <±0.2m / s, the pollutant layer is 400m to 800m above the ground, and the flight altitude is set to 800m to 850mm relative to the ground. Figure 4 After one hour of operation, the average AQI index dropped from 235 to 219. After another hour of operation, the average AQI index dropped from 219 to 175, reaching the operation target. The AQI index showed a downward trend and this operation was completed.

[0058] Two hours after the operation, the AQI index dropped significantly. In the same period, the AQI index in the surrounding areas outside the operation coverage area continued to rise or did not change significantly. According to meteorological monitoring data, the wind direction did not change much before and after the operation, and the relative humidity of the air dropped slightly. Through horizontal and vertical comparisons, it was concluded that the operation was effective.

[0059] The fog and haze elimination operation system and method based on an aircraft platform provided by the present invention adopt an aircraft as a platform for operation, and two kinds of spreading devices, namely a hygroscopic dry powder spreading device and an in-line flame strip mounting device, are installed on the aircraft for operation, and desiccant, cold cloud catalyst and warm cloud catalyst can be spread at the same time, and both cold and warm fog elimination functions are combined; the operation aircraft establishes real-time communication with a ground command center through a wireless communication module, and uses the ground command center to coordinate and complete meteorological data monitoring, air quality monitoring, route planning, flight plan reporting, operation instruction issuance, etc., and the aircraft completes the fog and haze elimination operation by spreading; among them, the warm cloud flame strip, the cold cloud smoke strip and the desiccant can adjust the operation volume at any time, and can adapt to the operation requirements under different climatic conditions. In addition, by using the aircraft as an operation platform, the design schemes at different altitudes can adapt to the fog and haze elimination requirements in different regions, and the applicability is stronger.

[0060] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for eliminating haze based on an aircraft platform, applied to an aircraft platform-based system for eliminating haze, characterized in that: The system includes: Aircraft And a hygroscopic dry powder spreading device and an in-line flame strip mounting device carried on an aircraft, the hygroscopic dry powder spreading device comprises a hygroscopic agent tank body and an air source tank connected to the hygroscopic agent tank body, the hygroscopic agent tank body is provided with a rotating blade, the rotating blade is connected to a motor drive, the air source tank provides dry gas for the hygroscopic agent tank body to blow out the hygroscopic agent, and the bottom of the hygroscopic agent tank body is provided with a discharge pipe; The in-line flame strip mounting device comprises an ignition controller, a flame strip fixing frame and a plurality of catalyst flame strips, wherein the flame strip fixing frame is fixedly connected to the aircraft via a supporting fixing arm, a plurality of catalyst flame strips are evenly arranged on the flame strip fixing frame, and the ignition controller is connected to the plurality of catalyst flame strips via a cable; The hygroscopic dry powder spreading device further comprises a power module and a tank support, wherein the power module provides power to the motor, and the hygroscopic agent tank is fixedly arranged on the aircraft via the tank support; The haze elimination operation system based on the aircraft platform also includes a ground command center. The aircraft is provided with a wireless communication module. The aircraft is connected to the ground command center through the wireless communication module. The ground command center is also connected to a weather radar and a sounding instrument for obtaining weather data. The following steps are involved: S1, obtaining meteorological data, judging whether the meteorological data meets the conditions for haze elimination operation, and determining the carrying amount of hygroscopic agent and catalyst flame strip for haze elimination operation; obtaining meteorological index and air quality index according to meteorological detection and environmental monitoring means, and judging whether the conditions for haze elimination operation are met according to the above indexes; Determine the number of cold cloud flame strips and warm cloud flame strips and the weight of the desiccant; S2, preset the aircraft operation route and flight altitude according to wind direction, wind speed and pollutant layer height; S3, prepare the aircraft for takeoff, assemble the catalyst flame strip according to the determined carrying amount and conduct ground test, and load the desiccant into the desiccant tank; S4: The aircraft takes off according to the preset operation route, flies to the operation area, and starts to spread catalysts and desiccant to eliminate haze. The ground command center simultaneously monitors meteorological data and air quality data, and conducts air index trend analysis; S5: According to the above air index trend, determine the next operation volume and operation duration, and continue the operation until the air index meets the current operation target; S6, evaluate and analyze the operation effect of this operation and generate a haze elimination operation record; Meteorological data is obtained through methods including weather radar, radiosonde, and ground station to obtain air pressure, temperature and humidity, wind direction, and wind speed data; air quality monitoring data comes from national environmental monitoring points and third-party monitoring point data; The air quality index AQI reaches above 150, meeting the conditions for haze elimination operations; when the ground temperature t0 < 0°C and the relative humidity is > 60%, carry cold cloud flame strips, warm cloud flame strips or desiccant, and operate mainly with cold cloud flame strips; when the ground temperature 0°C ≤ t0 < 10°C and the relative humidity is > 60%, carry warm cloud flame strips and desiccant.

2. The method for eliminating haze based on an aircraft platform according to claim 1, characterized in that: The desiccant tank is connected with the gas source tank through an air pipeline, and an air control valve is arranged on the air pipeline.

3. The method for eliminating haze based on an aircraft platform according to claim 1, characterized in that: The catalyst flame strips include cold cloud flame strips and warm cloud flame strips, wherein the cold cloud flame strips carry cold cloud catalysts, and the warm cloud flame strips carry warm cloud catalysts.

4. The method for eliminating haze based on an aircraft platform according to claim 1, characterized in that: The aircraft used is the Yun-5B aircraft.

5. The method for eliminating haze based on an aircraft platform according to claim 1, characterized in that: In step S2, the flight route of the aircraft is in the upwind area of ​​the polluted area, and the flight route is in an 8-shaped circle perpendicular to the wind direction.

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