Liquid anti-mist agent spreading device and method

Abstract

The present application relates to a kind of liquid defogging agent spreading device and spreading method, including vehicle body, information acquisition system, control system, storage system, filtration system, conveying system, heightening system, spraying system, backwash system;It is suitable for spreading liquid defogging agent;Intelligent control spreading operation can be carried out, real-time information acquisition is carried out to whole process of spreading operation and long-distance transmission;Two-stage heating is used, so that the temperature of liquid defogging agent can be adjusted within 20 ℃~80 ℃;Through the unique two-layer hemispherical nested nozzle structure and the design of spray system of variable particle size nozzle, multiple particle size variable rotary nozzle assemblies are staggered distribution on the nozzle in layer circle, so that atomization particle size is uniform and controllable, spreading particle size can be adjusted within 10 μm~100 μm, spreading flow is 10 L·min ‑1 ~30 L·min ‑1 , spreading range is wide, for 200 m 3 ~500 m 3 .

Description

Technical Field

[0001] This invention belongs to the technical field of anti-fogging agent dispensing devices, and specifically relates to a liquid anti-fogging agent dispensing device and dispensing method. Background Technology

[0002] Foggy weather causes great inconvenience to travel. Scientists have studied various methods to dispel fog, the most common being heating and spreading hygroscopic substances. The heating method works by heating the air to desaturate the fog area, promoting evaporation and dissipating the fog. However, this method is costly and can only be used locally, making large-scale application difficult. Spreading hygroscopic substances absorbs moisture from the air, creating an unsaturated environment that causes fog droplets to evaporate and disappear. Simultaneously, the substances themselves condense and grow, colliding with some droplets as they fall, improving visibility. However, the effectiveness of spreading hygroscopic substances depends on the size spectrum of the substance, the spreading method, and the spreading location. Commonly used hygroscopic substances are often salt powder particles, whose particle size is difficult to control, resulting in short spraying distances, small coverage areas, and significant temperature dependence. At low temperatures, the adsorption efficiency of salt powder particles is low, leading to poor fog dispersal.

[0003] A novel liquid anti-fogging agent, developed independently, features a customizable spray particle size, long spray distance, wide coverage, and faster adsorption and condensation rates than conventional solid powder hygroscopic substances. It also exhibits enhanced performance with heating, making it better adaptable to environmental conditions. Sprayed as tiny droplets into the fog, it rapidly absorbs moisture from the air, forming larger droplets that fall quickly under gravity, disrupting the fog's stability and causing rapid dissipation, resulting in superior anti-fogging performance. When heated, this liquid anti-fogging agent has a viscosity similar to water and partially vaporizes into a gas-liquid two-phase flow. Upon cooling to lower temperatures, it easily crystallizes into a solid. Conventional spraying devices are mostly powder spraying devices, and the few existing liquid spraying devices are unsuitable for this type of liquid anti-fogging agent. Therefore, this invention designs a novel liquid anti-fogging agent spraying device to address the characteristics of this novel liquid anti-fogging agent. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a liquid anti-fogging agent dispensing device and method. This device is suitable for dispensing liquid anti-fogging agents and can filter, heat, and maintain the temperature of the liquid anti-fogging agent, while also having a pipeline backwashing cleaning function. The device features intelligent control, adjustable dispensing height, adjustable dispensing temperature, adjustable dispensing angle, rotatable dispensing, adjustable dispensing particle size, large dispensing flow rate, and wide dispensing range.

[0005] The above-mentioned objective of the present invention is achieved through the following technical solution:

[0006] The first aspect of the present invention is to provide a liquid anti-fogging agent dispensing device, comprising a vehicle body, an information acquisition system, a control system, a storage system, a filtration system, a conveying system, a lifting system, a spraying system, and a backwashing system.

[0007] Furthermore, the information acquisition system is used to collect atmospheric environmental parameters such as visibility, temperature, humidity, wind speed, and wind direction, as well as fog parameters such as droplet number concentration, liquid water content, and droplet diameter.

[0008] Furthermore, the information acquisition system includes a panoramic camera, a visibility meter, a fog droplet spectrometer, a wind direction sensor, a wind speed sensor, a weather Stevenson screen, a main unit, and a solar panel.

[0009] Furthermore, the panoramic camera can rotate 360° to record video of the entire environment and dissemination process. A visibility meter measures atmospheric visibility to determine the presence and severity of fog. A fog droplet spectrometer analyzes fog parameters such as droplet number concentration, liquid water content, and droplet diameter throughout the operation. Wind direction sensors, wind speed sensors, and a weather Stevenson screen collect data on wind speed, direction, temperature, and humidity in the atmosphere. All collected data is stored in the main unit and can be transmitted remotely. Solar panels power the data acquisition equipment using solar energy.

[0010] Furthermore, the information acquisition system is installed on a bracket on the vehicle body near the driver's cab. The bracket can extend longitudinally and laterally, with an extension height of 0.5m to 6m, so as to extend outside the vehicle body for information acquisition. At the same time, a panoramic camera is also installed at the front of the vehicle and the front of the boom arm to facilitate video recording of the entire scene.

[0011] Furthermore, the control system is used for intelligent control of the liquid anti-fogging agent dispensing device, determining the operation mode and number of operations for dispensing the liquid anti-fogging agent.

[0012] Furthermore, the control system includes a console, a display, an operating lever, a luffing cylinder, a hydraulic pump, a mechanical transmission device, a jacket temperature adjustment button, a liquid flow rate adjustment button, a gas flow rate adjustment button, an extension height adjustment button, a pitch angle adjustment button, a rotation direction adjustment button, a spray angle adjustment button, and a backwashing operation button.

[0013] Furthermore, the intelligent control involves: an information acquisition system collecting atmospheric environmental parameters and fog parameters and transmitting them to a control console, which displays them on a monitor. Based on the collected atmospheric environmental parameters and fog parameters, the system determines whether liquid anti-fogging agent application is necessary, as well as the application method and number of applications. When dense fog or heavy fog with visibility <1000m occurs, the control console extends the boom to a height of 30m via a variable-amplitude cylinder, hydraulic pump, and mechanical transmission device, using four nozzles with a maximum flow rate of 30L·min.-1 A 360° rotating aerial spraying operation is conducted. The particle size of the liquid anti-fogging agent is determined based on the droplet size collected by a droplet spectrometer; the selected particle size should be the closest to the droplet size. The spraying temperature of the liquid anti-fogging agent is determined based on the collected atmospheric temperature; spraying is carried out when the liquid anti-fogging agent temperature is heated to at least 10°C higher than the atmospheric temperature. As the spraying operation progresses, atmospheric environmental parameters and fog parameters are collected in real time, and the operation mode is adjusted accordingly. When visibility is >1000m, the fog level is considered light fog, and the spraying operation can be stopped based on the clarity of the video field of view from the panoramic camera.

[0014] Furthermore, the control system is installed in the driver's cab.

[0015] Furthermore, the storage system is used to store and heat the liquid anti-fogging agent.

[0016] Furthermore, the storage system includes a jacketed storage tank.

[0017] Furthermore, the storage tank consists of a tank cover, a tank body, and a jacketed heating device. The tank cover is equipped with a feed inlet and a safety valve, while the tank body has a discharge outlet at the bottom. The jacketed heating device is located on the outside of the tank body, capable of heating the liquid anti-fogging agent to 20℃~80℃. An agitator is installed inside the tank body to thoroughly stir the liquid anti-fogging agent. The storage tank is also equipped with a level gauge to monitor the liquid level. A fixing device is provided to prevent the tank from moving.

[0018] Furthermore, the storage system is installed on the vehicle body.

[0019] Furthermore, the filtration system is used to filter solid impurities in the liquid anti-fogging agent, preventing blockage of the centrifugal pump, delivery pipeline, and nozzles.

[0020] Furthermore, the filtration system comprises multi-stage filters.

[0021] Furthermore, the filter screen is installed in the inlet pipe of the centrifugal pump, the feed pipe of the nozzle, the delivery pipe, and the nozzle.

[0022] Furthermore, the delivery system is used to deliver liquid anti-fogging agent.

[0023] Furthermore, the conveying system includes a gas-liquid two-phase mixing pump, a conveying pipeline, and a flow meter.

[0024] Furthermore, the gas-liquid two-phase mixing pump is mounted on the vehicle body for pumping liquid anti-fogging agent. The delivery pipeline connects the storage tank and the centrifugal pump, and connects the centrifugal pump and the nozzle, and is strapped to the lifting arm. A flow meter is installed on the delivery pipeline to monitor the delivery flow rate of the liquid anti-fogging agent.

[0025] Furthermore, the elevation system is used to extend the spreading height and spreading angle.

[0026] Furthermore, the lifting system is a foldable and telescopic structure with an extension height of ≤30m and can rotate 360°. The pitch angle between the first arm and the vehicle body is 0° to 90°, and the pitch angle between the first arm and the second arm is 0° to 180°.

[0027] Furthermore, the lifting system includes a rotating platform, a lifting arm, and a telescopic support rod. The lifting arm includes a fixed arm, a first main arm, a first auxiliary arm, a second main arm, and a second auxiliary arm.

[0028] Furthermore, the slewing platform is fixedly installed on the vehicle body; the boom is fixedly installed on the slewing platform, which can drive the boom to rotate 360°; there are slide rails between the first main boom and the first auxiliary boom, and between the second main boom and the second auxiliary boom, forming a telescopic structure; the first auxiliary boom and the second main boom are hinged, allowing the second main boom and the second auxiliary boom to be folded and stored on the first main boom and the first auxiliary boom; the extension height, rotation angle, and pitch angle of the boom can be controlled by the luffing cylinder and the mechanical transmission device.

[0029] Furthermore, the spraying system is used to atomize and spray the liquid anti-fogging agent.

[0030] Furthermore, the spraying system includes a motor, a fan, a nozzle, a nozzle assembly, and a two-stage heating device.

[0031] Furthermore, the number of nozzles is ≥2, and the nozzle is a two-layer hemispherical nested structure with a cylindrical base, including a cylindrical base, a gas channel, a liquid channel, and a gas chamber.

[0032] Furthermore, the motor drives the fan to rotate, generating a high-speed airflow that enters the gas chamber through the gas channel. Inside the gas chamber, the airflow enters the nozzle through the air inlet on the nozzle assembly. The liquid anti-misting agent enters the nozzle head through the liquid channel and then enters each nozzle through the pipeline on the nozzle head. In the mixing chamber of the nozzle assembly, the liquid anti-misting agent is broken and atomized into tiny droplets by the high-speed airflow and sprayed out through the nozzle.

[0033] Furthermore, the nozzle assembly includes a base, an air inlet, a mixing chamber, a filter screen, a fixing sleeve, a spherical rotating component, and a variable-size nozzle. The air inlet allows high-speed airflow to enter the nozzle from the nozzle head's air chamber. The liquid anti-fogging agent in the mixing chamber mixes with the high-speed airflow and is broken up and atomized into small droplets. The filter screen filters the liquid anti-fogging agent to be sprayed, preventing nozzle clogging. The variable-size nozzle has four nozzle sizes: 10μm, 30μm, 50μm, and 100μm. The spherical rotating component rotates to change the nozzle size, thus changing the sprayed particle size. The nozzle assembly is arranged in a layered, staggered pattern on the nozzle head, with an angle between nozzle assemblies of 45° to 60°. The number of nozzle assemblies on the nozzle head is ≥10, enabling omnidirectional, wide-area spraying of the liquid anti-fogging agent.

[0034] Furthermore, the two-stage heating device uses circulating hot water to reheat the liquid anti-fogging agent at the nozzle. The two-stage heating device includes a water collection tank, a U-shaped heating pipe, a hot water output pipe, a cold water return pipe, and a thermometer. The U-shaped heating pipe heats the water in the tank as a heat source, circulating it through the hot water output pipe and the cold water return pipe outside the delivery pipe to heat the liquid anti-fogging agent at the nozzle. The two-stage heating device is located next to the nozzle.

[0035] Furthermore, the spraying system has an adjustable spray particle size of 10μm to 100μm and a large spray flow rate of 10L·min. -1 ~30L·min -1 The spraying range is wide, with a spraying area of ​​200m. 3 ~500m 3 .

[0036] Furthermore, the spraying system is mounted on the boom.

[0037] Furthermore, the backflushing system is used for backflushing and cleaning when pipelines are blocked.

[0038] Furthermore, the backwashing system includes a backwashing pipe, a first control valve, a second control valve, a drain valve, a filter screen, and a pressure sensor.

[0039] Furthermore, when the pipeline is blocked, the pressure sensor detects excessive pressure, the first control valve on the delivery pipe closes, and the second control valve on the backwash pipe opens to perform backwashing. Impurities are discharged through the drain valve. After the pipeline is cleared, the pressure decreases, the second control valve closes and the first control valve opens, and the delivery pipe resumes its original flow direction.

[0040] Furthermore, the backwashing system is installed on the delivery pipeline.

[0041] Furthermore, the liquid anti-fogging agent dispensing device also includes a protective box, with the storage system and conveying system located inside the protective box. When the lifting arm is folded up, it is placed on top of the protective box. The outer surface of the protective box is coated with a water-repellent material, and an entrance door is provided on the protective box. The liquid anti-fogging agent dispensing device also includes four H-shaped support legs, which can automatically deploy, level, and retract.

[0042] The second aspect of the present invention provides a method for distributing the liquid anti-fogging agent using the aforementioned device. Based on collected atmospheric environmental parameters and fog parameters, the method for distributing the liquid anti-fogging agent is determined. When dense fog or heavy fog with atmospheric visibility <1000m occurs, the control console extends the boom to a height of 30m via a variable-amplitude cylinder, a hydraulic pump, and a mechanical transmission device, using four nozzles with a maximum flow rate of 30L·min. -1 A 360° rotating aerial spraying operation is conducted. The particle size of the liquid anti-fogging agent is determined based on the droplet size collected by a droplet spectrometer; the selected particle size should be the closest to the droplet size. The spraying temperature of the liquid anti-fogging agent is determined based on the collected atmospheric temperature; spraying is carried out when the liquid anti-fogging agent temperature is heated to at least 10°C higher than the atmospheric temperature. As the spraying operation progresses, atmospheric environmental parameters and fog parameters are collected in real time, and the operation mode is adjusted accordingly. When visibility is >1000m, the fog level is considered light fog, and the spraying operation can be stopped based on the clarity of the video field of view from the panoramic camera.

[0043] The advantages and positive effects of this invention are as follows:

[0044] This invention is applicable to the application of liquid anti-fogging agents. It employs intelligent control, real-time information acquisition and transmission, two-stage heating, multi-stage filtration, elevated application, a unique two-layer hemispherical nested nozzle structure, and multiple variable-size nozzles arranged in a ring. This allows for temperature control within the range of 20℃ to 80℃, particle size adjustment from 10μm to 100μm, and a high application rate of 10L·min. -1 ~30L·min -1 It has a wide spreading range, with a spreading range of 200m. 3 ~500m 3 The sowing height can be adjusted within 30m, the sowing angle is adjustable, and it can rotate 360° for sowing. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the liquid anti-fogging agent dispensing device of the present invention;

[0046] Figure 2 This is a schematic diagram of the information acquisition system of the present invention;

[0047] Figure 3 This is a control flowchart of the control system of the present invention;

[0048] Figure 4 This is a schematic diagram of the material storage system of the present invention;

[0049] Figure 5 This is a schematic diagram of the conveying system of the present invention;

[0050] Figure 6 This is a schematic diagram of the lifting system of the present invention;

[0051] Figure 7 This is a schematic diagram of the spraying system of the present invention;

[0052] Figure 8a This is a schematic diagram of the nozzle structure in the spraying system of the present invention;

[0053] Figure 8b This is a schematic diagram of the internal structure of the nozzle in the spraying system of the present invention;

[0054] Figure 9a This is a schematic diagram of the nozzle assembly in the spraying system of the present invention;

[0055] Figure 9b This is a schematic diagram of the internal structure of the nozzle assembly in the spraying system of the present invention;

[0056] Figure 10 This is a schematic diagram of the backwashing system of the present invention. Detailed Implementation

[0057] The structure of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that these embodiments are descriptive and not limiting.

[0058] See Figures 1-10 The present invention provides a liquid anti-fogging agent dispensing device, comprising a vehicle body 9, an information acquisition system 5, a control system 4, a material storage system 6, a filtration system 7, a conveying system 8, a lifting system 1, a spraying system 3, and a backwashing system 2.

[0059] like Figure 2As shown, the information acquisition system is used to collect atmospheric environmental parameters such as visibility, temperature, humidity, wind speed, and wind direction, as well as fog parameters such as droplet number concentration, liquid water content, and droplet diameter. Specifically, the information acquisition system includes a panoramic camera 5-3, a visibility meter 5-2, a droplet spectrometer 5-8, a wind direction sensor 5-1, a wind speed sensor 5-6, a weather Stevenson screen 5-7, a main unit 5-5, and a solar panel 5-4. The panoramic camera can rotate 360° to record video of the entire environment and the liquid anti-fogging agent application operation. The visibility meter measures atmospheric visibility to determine the presence and level of fog. The droplet spectrometer analyzes fog parameters such as droplet number concentration, liquid water content, and droplet diameter throughout the application process. The wind direction sensor, wind speed sensor, and weather Stevenson screen collect atmospheric environmental parameters such as wind speed, wind direction, temperature, and humidity. All collected data is stored in the main unit and can be remotely transmitted to the monitor on the control console. The solar panel uses solar energy to power the information acquisition equipment. The information collection system is installed on the vehicle body, near the driver's cab, on longitudinally telescopic brackets 5-9 and laterally telescopic brackets 5-10, with a telescopic height of 0.5m to 10m. Normally, it is retracted and located inside a protective enclosure; when in use, it can extend longitudinally and laterally out of the vehicle body to collect information.

[0060] The control system, installed in the cab, is used for intelligent control of the liquid anti-fogging agent dispensing device, determining the operating mode and number of applications. Specifically, the control system includes a console, display, control levers, a boom cylinder, a hydraulic pump, a mechanical transmission device, jacket temperature adjustment buttons, liquid flow rate adjustment buttons, gas flow rate adjustment buttons, extension height adjustment buttons, pitch angle adjustment buttons, rotation direction adjustment buttons, spray angle adjustment buttons, and backwash operation buttons. Electrical connections are made using conventional methods, which will not be elaborated further here.

[0061] like Figure 3 As shown, the intelligent control involves: an information acquisition system collecting atmospheric environmental parameters and fog parameters, transmitting them to a control console, and displaying them on a monitor. The system determines the liquid anti-fogging agent application method based on the collected atmospheric environmental parameters and fog parameters. When dense fog or heavy fog with visibility <1000m occurs, the control console extends the boom to a height of 30m via a variable-amplitude cylinder, hydraulic pump, and mechanical transmission device, using four nozzles with a maximum flow rate of 30L·min. -1A 360° rotating aerial spraying operation is conducted. The particle size of the liquid anti-fogging agent is determined based on the droplet size collected by a droplet spectrometer; the selected particle size should be the closest to the droplet size. The spraying temperature of the liquid anti-fogging agent is determined based on the collected atmospheric temperature; spraying is carried out when the liquid anti-fogging agent temperature is heated to at least 10°C higher than the atmospheric temperature. As the spraying operation progresses, atmospheric environmental parameters and fog parameters are collected in real time, and the operation mode is adjusted accordingly. When visibility is >1000m, the fog level is considered light fog, and the spraying operation can be stopped based on the clarity of the video field of view from the panoramic camera.

[0062] like Figure 4 As shown, the storage system is used to store and heat the liquid anti-fogging agent and is installed on the vehicle body. Specifically, the storage system includes a jacketed storage tank, which consists of a tank cover 6-2, a tank body 6-7, and a jacketed heating device 6-8. The tank cover is equipped with a liquid inlet 6-5 and a safety valve 6-1. When the pressure inside the storage tank is too high, the safety valve will automatically open to release pressure. A liquid outlet 6-9 is located at the bottom of the tank body. An agitator 6-4 is installed inside the tank body. The agitator is driven by a motor and uses a two-layer, two-blade agitator to ensure uniform mixing. A level gauge 6-6 is installed on the outside of the tank body to monitor the liquid level in real time and has an alarm function, issuing a low-level warning when the liquid level is too low. The jacketed heating device is located on the outside of the tank body and heats the liquid anti-fogging agent through heat exchange. A temperature probe is installed inside the storage tank, and a temperature display panel 6-3 is installed on the surface of the tank to monitor the temperature inside the storage tank in real time.

[0063] The filtration system is used to filter solid impurities in the liquid anti-fogging agent, preventing equipment clogging and damage. Specifically, the filtration system includes multi-stage filters. The filters are installed in the inlet pipe of the centrifugal pump, the feed pipe of the nozzle, the delivery pipe, and the nozzle.

[0064] like Figure 5 As shown, the conveying system is used to convey liquid anti-fogging agent and is installed on the vehicle body and the lifting arm. Specifically, the conveying system includes a gas-liquid two-phase mixing pump 8-3, a conveying pipeline 8-1, and a flow meter 8-2. The gas-liquid two-phase mixing pump is installed on the vehicle body and is used to pump the liquid anti-fogging agent. One end of the conveying pipeline is connected to a storage tank and a centrifugal pump, and the other end is connected to the centrifugal pump and a nozzle, and is strapped to the lifting arm. The flow meter is installed on the conveying pipeline to monitor the flow rate of the liquid anti-fogging agent. A filter screen is installed on the feed pipeline of the gas-liquid two-phase mixing pump to filter solid impurities in the liquid anti-fogging agent and prevent damage to the pump.

[0065] like Figure 6As shown, the lifting system is a foldable and telescopic structure used to extend the spreading height and angle, with an extension height ≤30m and the ability to rotate 360°. The lifting system includes a rotating platform 1-1, a lifting arm, and telescopic support rods 1-3. The lifting arm includes a fixed arm 1-2, a first main arm 1-4, a first auxiliary arm 1-5, a second main arm 1-6, and a second auxiliary arm 1-7. The rotating platform is fixedly mounted on the vehicle body, and the lifting arm is fixedly mounted on the rotating platform, supported by telescopic support rods. The rotating platform can drive the lifting arm to rotate 360°. Telescopic slide rails 1-8 are installed between the first main arm and the first auxiliary arm, and between the second main arm and the second auxiliary arm. The first auxiliary arm and the second main arm are hinged, allowing the second main arm and the second auxiliary arm to be folded and stored on the first main arm and the first auxiliary arm, supported by telescopic support rods. When the boom is fully extended, the height is 30m. The pitch angle between the first boom and the vehicle body is 0° to 90°, and the pitch angle between the first boom and the second boom is 0° to 180°. The boom's rotation and pitch angles can be controlled by the luffing cylinder.

[0066] like Figure 7 As shown, the spraying system is used to atomize and spray liquid anti-fogging agent, and is installed on the lifting arm. Specifically, it includes a motor 3-1, a fan 3-2, a nozzle 3-3, a nozzle assembly 3-4, and a two-stage heating device 3-5. Specifically, as... Figure 8a and Figure 8b As shown, the nozzle is a hemispherical structure with a cylindrical base, and there are ≥2 nozzles. It includes a cylindrical base 3-3-1, a gas channel 3-3-2, a liquid channel 3-3-3, and an air chamber 3-3-4. The cylindrical base is a double-shell jacketed structure. The inner shell forms the liquid channel, and the space between the outer shell and the inner shell is the gas channel. The motor drives the fan to rotate and generate a high-speed airflow that flows into the air chamber through the gas channel. In the air chamber, it enters the nozzle through the air inlet on the nozzle assembly. The liquid anti-fogging agent enters the nozzle through the liquid channel and enters each nozzle through the pipe on the nozzle. The two are mixed in the mixing chamber of the nozzle assembly. The liquid anti-fogging agent is broken and atomized into tiny droplets by the high-speed airflow and sprayed out through the nozzle.

[0067] Specifically, the nozzle assemblies are arranged in a staggered, ring-like pattern on the nozzle head, with an angle of 60° between each assembly, and there are 13 nozzles in total. For example... Figure 9a , Figure 9bAs shown, the nozzle assembly includes a base 3-4-1, an air inlet 3-4-2, a mixing chamber 3-4-3, a fixing sleeve 3-4-4, a spherical rotating component 3-4-5, a 10μm nozzle 3-4-7, a 30μm nozzle 3-4-9, a 50μm nozzle 3-4-8, a 100μm nozzle 3-4-6, and a filter screen 3-4-10. The base has a threaded connection portion that is threadedly connected to the inner shell of the cylindrical base. The nozzle assembly has a mixing chamber inside, which communicates with a liquid channel and with a gas channel through an air inlet on the side wall. To enable the nozzle to rotate, a spherical rotating component is also included, with a rotation angle of -45° to 45°. Rotation can change the nozzle specifications and thus change the spray particle size. Rotatable nozzles are prior art, illustrated in the figure, and will not be described in detail here.

[0068] Specifically, the two-stage heating device uses recirculating hot water to heat the liquid anti-fogging agent, and includes a water collection tank 3-5-1, a U-shaped heating tube 3-5-2, a hot water output pipe 3-5-3, a cold water return pipe 3-5-4, and a thermometer 3-5-5. The two-stage heating device uses the U-shaped heating tube to heat the water in the water collection tank, achieving heat exchange through hot water circulation. The hot water output pipe and the cold water return pipe are located outside the liquid anti-fogging agent delivery pipe, allowing for sufficient heat exchange. A thermometer is also installed on the pipes to monitor the water temperature in real time.

[0069] like Figure 10 As shown, the backwashing system is used for backwashing and cleaning when the pipeline is blocked. Specifically, it includes a backwash pipe 2-1, a first control valve 2-3, a second control valve 2-2, a pressure sensor 2-5, and a drain valve 2-4. The backwash pipe is located outside the delivery pipeline, and the second control valve is fixedly installed on the backwash pipe. The first control valve and the drain valve are fixedly installed on the delivery pipeline, and a pressure sensor is located inside the pipeline. When the pipeline is blocked, the pressure sensor detects excessive pressure, the first control valve on the delivery pipe closes, and the second control valve on the backwash pipe opens to perform backwashing. Impurities are discharged through the drain valve. After the pipeline is cleared, the pressure decreases, the second control valve closes, the first control valve opens, and the delivery pipeline resumes its original flow direction.

[0070] The aforementioned liquid anti-fogging agent dispensing device also includes a protective box 10. The storage system and conveying system are located inside the protective box. The outer surface of the protective box is coated with a water-repellent material, and an inlet door 11 is provided on the protective box to facilitate cleaning and maintenance of the equipment. The aforementioned liquid anti-fogging agent dispensing device also includes four H-shaped support legs 12, which can automatically deploy and level, and automatically retract to maintain the balance and load-bearing capacity of the vehicle.

[0071] This invention relates to a novel liquid anti-fogging agent dispensing device with an intelligent control system. Through a unique spraying system design, it utilizes a two-layer hemispherical nested nozzle system equipped with multiple nozzle assemblies. By rotating the nozzles to change the spray particle size, it achieves excellent performance in terms of adjustable spray particle size, large spray flow rate, and wide spray range. The combination of a lifting system and a spraying system enables adjustable spraying height and rotatable spraying of the liquid anti-fogging agent. It also features a two-stage heating function, allowing for adjustable spraying temperature. Furthermore, it is equipped with a filtration device and a pipeline backflushing device, greatly avoiding pipeline blockage problems; even if blockage occurs, backflushing can be used for cleaning.

[0072] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A liquid anti-fogging agent dispensing device, characterized in that: Include: Vehicle body, An information acquisition system is used to collect atmospheric environmental parameters such as visibility, temperature, humidity, wind speed, and wind direction, as well as fog droplet number concentration, liquid water content, and fog droplet diameter. The control system is used to intelligently control the liquid anti-fogging agent dispensing device, determine and adjust the dispensing operation mode and number of operations based on the collected atmospheric visibility, determine the spraying temperature based on the atmospheric ambient temperature, and determine the spraying particle size based on the droplet diameter. The storage system uses a jacketed storage tank to heat the stored liquid anti-fogging agent; A filtration system, wherein the filtration system employs a multi-stage filter screen to filter the liquid anti-fogging agent; A conveying system for conveying liquid anti-fogging agent; The elevation system is a foldable and telescopic structure used to extend the spreading height and spreading angle; A spraying system, installed on a lifting arm, is used to atomize and spray liquid anti-fogging agent; and a backflushing system, wherein the backflushing system is used to backflush and clean when the pipeline is blocked; The spraying system includes a motor, a fan, a nozzle, a nozzle assembly, and a two-stage heating device. The nozzle adopts a unique two-layer hemispherical nested structure. The nozzle includes a cylindrical base, a gas channel, a liquid channel, and an air chamber. The cylindrical base is a double-shell jacket structure. The inner shell forms the liquid channel, and the space between the outer shell and the inner shell is the gas channel. The motor drives the fan to rotate and generate a high-speed airflow that enters the air chamber through the gas channel. In the air chamber, the airflow enters the nozzle assembly through the air inlet on the nozzle assembly. The liquid anti-fogging agent enters the nozzle through the liquid channel and then enters each nozzle assembly through the pipes on the nozzle. In the mixing chamber of the nozzle assembly, the liquid anti-fogging agent is broken and atomized into tiny droplets by the high-speed airflow and sprayed out through the nozzle. The nozzle assembly includes a base, an air inlet, a mixing chamber, a filter screen, a fixing sleeve, a spherical rotating component, and a variable-size nozzle. The base has a threaded connection that is threaded to the inner shell of the cylindrical base. The nozzle assembly has a mixing chamber inside, which is connected to a liquid channel and to a gas channel through an air inlet on the side wall. The variable-size nozzle has four sizes: 10 μm, 30 μm, 50 μm, and 100 μm. The spherical rotating component drives the variable-size nozzle to rotate, which can change the nozzle size and thus change the spray particle size. The nozzle assembly is arranged in a staggered, ring-like pattern on the nozzle head, with an angle between the nozzle assemblies of 45° to 60°. The number of nozzle assemblies on each layer of the nozzle head is ≥10.

2. The liquid anti-fogging agent dispensing device according to claim 1, characterized in that: The information acquisition system includes a bracket and a panoramic camera, visibility meter, fog droplet spectrometer, wind direction sensor, wind speed sensor, weather Stevenson screen, and solar panel mounted on the bracket.

3. The liquid anti-fogging agent dispensing device according to claim 1, characterized in that: The delivery system includes a gas-liquid two-phase mixing pump, a delivery pipeline, and a flow meter. The gas-liquid two-phase mixing pump is installed on the vehicle body, the delivery pipeline is a gas-liquid two-phase mixing pipeline, which is tied to the lifting arm, and the flow meter is installed on the delivery pipeline to monitor the delivery flow rate of the liquid anti-fogging agent.

4. The liquid anti-fogging agent dispensing device according to claim 1, characterized in that: The two-stage heating device uses circulating hot water to reheat the liquid anti-fogging agent at the nozzle. The two-stage heating device includes a water collection tank, a U-shaped heating pipe, a hot water output pipe, a cold water return pipe, and a thermometer. The U-shaped heating pipe heats the water in the water tank as a heat source, and circulates it through the hot water output pipe and the cold water return pipe outside the delivery pipe to heat the liquid anti-fogging agent at the nozzle. The hot water output pipe and the cold water return pipe are located outside the liquid anti-fogging agent delivery pipe.

5. The liquid anti-fogging agent dispensing device according to claim 1, characterized in that: The backwashing system includes a backwashing pipe, a first control valve, a second control valve, a drain valve, a filter screen, and a pressure sensor. The backwashing pipe is located outside the delivery pipeline, and the second control valve is fixedly installed on the backwashing pipe. The first control valve and the drain valve are fixedly installed on the delivery pipeline, and a pressure sensor is installed inside. When the pipeline is blocked, the pressure sensor senses excessive pressure, the first control valve on the delivery pipe closes, and the second control valve on the backwashing pipe opens to perform backwashing. Impurities are discharged through the drain valve. After the pipeline is cleared, the pressure decreases, the second control valve closes, the first control valve opens, and the delivery pipe resumes its original flow direction.

6. The application method of the liquid anti-fogging agent application device according to claim 1, characterized in that: Based on the collected atmospheric environmental parameters and fog parameters, the liquid anti-fogging agent application method is determined. When dense fog or heavy fog with atmospheric visibility <1000 m occurs, the control console will extend its boom to a height of 30 m, using four nozzles at a maximum flow rate of 30 L·min. -1 A 360° rotating aerial spraying operation is conducted. The particle size of the liquid anti-fogging agent to be sprayed is determined based on the droplet size collected by the droplet spectrometer, and the particle size selected is the closest to the droplet size. The spraying temperature of the liquid anti-fogging agent is determined based on the collected atmospheric temperature, and spraying is carried out when the liquid anti-fogging agent temperature is heated to more than 10°C higher than the atmospheric temperature. As the spraying operation proceeds, atmospheric environmental parameters and fog parameters are collected in real time, and the operation mode is adjusted. When the visibility is >1000 m, the fog level is light fog, and the spraying operation can be stopped based on whether the video field of view of the panoramic camera is clear.

Images