Intelligent variable-frequency dust fall system for construction site

Abstract

The invention provides an intelligent variable-frequency dust fall system for a construction site. A flying dust monitoring module is used for monitoring dust particulate matter information of the construction site; the dust falling module is used for carrying out dust falling operation on the construction site; the water supply module is used for collecting treated water so as to supply water to the dust falling module during the dust falling operation; the frequency conversion control module is used for controlling respective working states of the dust falling module and the water supply module according to the dust particulate matter information, and dynamically regulating and controlling operation of dust falling equipment by detecting the dust particulate matter information of flying dust in real time, so that accurate and efficient flying dust treatment is realized, the utilization efficiency of water resources and energy can be optimized, and the dust falling equipment can be flexibly suitable for various construction environments; the flying dust treatment effect and the resource saving capacity are remarkably improved, and the problem of air pollution caused by flying dust on the construction site is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of building construction, and more particularly to an intelligent variable frequency dust suppression system for construction sites. Background Technology

[0003] Currently, spray / misting dust suppression technology is widely used in dust control due to its high efficiency, energy saving, and simple installation and maintenance. However, existing dust suppression technologies mostly rely on the independent use of single or a small number of dust suppression devices, and the on-site layout lacks scientific basis, resulting in ineffective dust suppression, low resource utilization efficiency, and high costs. Currently, we are in a peak period of urban infrastructure construction, and construction dust and road dust generated during construction exacerbate urban pollution problems. Therefore, research on intelligent and dynamic dust control technologies is of great significance for improving dust control effectiveness and resource conservation capabilities. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent variable frequency dust suppression system for construction sites, comprising: a dust monitoring module for monitoring dust particulate matter information at the construction site; a dust suppression module for implementing dust suppression operations at the construction site; a water supply module for collecting and treating water to supply water to the dust suppression module during dust suppression operations; and a variable frequency control module for controlling the working status of the dust suppression module and the water supply module according to dust particulate matter information. By real-time detection of dust particulate matter information, the system dynamically regulates the operation of the dust suppression equipment, achieving precise and efficient dust control. It also optimizes the utilization efficiency of water resources and energy, is flexibly applicable to various construction environments, significantly improves dust control effectiveness and resource conservation capabilities, and effectively solves the air pollution problem caused by dust at construction sites.

[0005] This invention is achieved through the following technical solution:

[0006] An intelligent variable frequency dust suppression system for construction sites includes:

[0007] The dust monitoring module is used to monitor dust particulate matter information at construction sites.

[0008] A dust suppression module is used to perform dust suppression operations at the construction site.

[0009] A water supply module is used to collect and treat water, thereby supplying water to the dust suppression module during dust suppression operations.

[0010] The frequency converter control module is used to control the working status of the dust suppression module and the water supply module according to the dust particle information.

[0011] Optionally, the dust monitoring module includes:

[0012] An infrared high-definition camera unit is used to capture infrared high-definition images of the construction site;

[0013] An environmental monitoring unit is used to monitor environmental parameters at the construction site.

[0014] A particulate matter monitoring unit is used to monitor the particulate matter concentration at the construction site;

[0015] The data acquisition and transmission unit is used to acquire the infrared high-definition images, the environmental parameters, and the particulate matter concentration, and transmit them to the cloud platform.

[0016] Optionally, the environmental monitoring unit includes a wind speed sensor, a wind direction sensor, a temperature sensor, and a humidity sensor;

[0017] The particulate matter monitoring unit includes a total suspended particulate sensor, a PM2.5 sensor, and a PM10 sensor;

[0018] The cloud platform analyzes and processes the infrared high-definition image, the environmental parameters, and the particulate matter concentration to obtain dust particulate matter information of the construction site; wherein, the dust particulate matter information includes the spatial distribution information of dust particulate matter concentration at the construction site, and the direction and speed information of dust particulate matter movement and diffusion.

[0019] Optionally, the dust suppression module includes automated fog cannon equipment, automated perimeter fencing spray equipment, automated foundation pit spray equipment, automated main construction spray equipment, automated tower crane spray equipment, and automated washing platform equipment, thereby implementing dust suppression operations on the construction site through water spraying, sprinkling, or misting.

[0020] Optionally, the automated fog cannon equipment includes a water tank, a high-pressure pump, atomizing nozzles, a high-pressure fan, a guide tube, a horizontal rotation device, and an elevation angle control device;

[0021] The water inlet of the automated enclosure spraying equipment and the automated foundation pit spraying equipment are connected to the water supply module through water pipes, and the water outlet is connected to a water pipe. Several nozzles are provided on the water pipe connected to the water outlet.

[0022] The water inlet of the automated main construction sprinkler equipment is connected to the water supply module via a water pipe, and the water outlet is equipped with a nozzle on the water pipe connected to the water outlet, which is mounted on the scaffolding.

[0023] Optionally, the water inlet of the automated tower crane sprinkler equipment is connected to the water supply module via a water pipe, and the water outlet is connected to a water pipe laid on the tower crane. The water outlet is equipped with a secondary booster pump and several nozzles.

[0024] The water inlet of the automated flushing platform equipment is connected to the water supply module via a water pipe, and the water outlet is connected to a water collection ditch. The water outlet is equipped with a secondary booster pump and several nozzles.

[0025] Optionally, the water supply module includes a sewage tank, a water treatment tank, and a variable frequency water pump;

[0026] The wastewater tank is used to collect the wastewater generated during the dust suppression operation and transport the wastewater to the water treatment tank through pipelines;

[0027] The water treatment tank includes at least one sedimentation tank, a filtration tank, and a clear water tank; the variable frequency water pump is used to control the clear water tank to supply water to the dust suppression module during dust suppression operations.

[0028] Optionally, the water treatment tank includes, in sequence along the water flow direction, a primary sedimentation tank, a secondary sedimentation tank, a filtration tank, a tertiary sedimentation tank, and a clear water tank.

[0029] Optionally, the frequency conversion control module includes a frequency converter and a solenoid valve;

[0030] The frequency converter sends instructions based on the dust particle information to control the working status of the dust suppression module and the water supply module.

[0031] Optionally, the frequency converter sends commands to control the operating states of the dust suppression module and the water supply module, including:

[0032] Sending open / close commands to the solenoid valve controls the opening / closing status of the automated fog cannon equipment, automated perimeter spray equipment, automated foundation pit spray equipment, automated main construction spray equipment, automated tower crane spray equipment, and automated washing platform equipment within the dust suppression module;

[0033] Send a power setting command to the automated fog cannon equipment to control its operating power;

[0034] A frequency control command is sent to the variable frequency water pump of the water supply module to control the water supply pressure of the water supply module to the dust suppression module.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] This application provides an intelligent variable frequency dust suppression system for construction sites, comprising: a dust monitoring module for monitoring particulate matter information at the construction site; a dust suppression module for implementing dust suppression operations at the construction site; a water supply module for collecting and treating water to supply water to the dust suppression module during dust suppression operations; and a variable frequency control module for controlling the operating status of the dust suppression module and the water supply module based on particulate matter information. By real-time detection of particulate matter information, the system dynamically adjusts the operation of the dust suppression equipment to achieve precise and efficient dust control, optimize water and energy utilization efficiency, and is flexibly applicable to various construction environments. It significantly improves dust control effectiveness and resource conservation capabilities, effectively solving the air pollution problem caused by dust at construction sites. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0038] Figure 1 This invention provides a structural schematic diagram of an intelligent variable frequency dust suppression system for construction sites.

[0039] Figure 2 This is a schematic diagram of the dust monitoring module.

[0040] Figure 3 This is a schematic diagram of the dust suppression module.

[0041] Figure 4 This is a structural diagram of an automated fencing spraying system or an automated foundation pit spraying system.

[0042] Figure 5 A schematic diagram of the structure of the automated main construction spraying equipment.

[0043] Figure 6 This is a schematic diagram of an automated tower crane spraying system.

[0044] Figure 7 This is a structural diagram of an automated rinsing platform device.

[0045] Figure 8 This is a structural diagram of the water supply module.

[0046] Figure 9 A map for identifying and evaluating environmental factors of dust pollution sources at construction sites.

[0047] Attached reference numerals: 100, Dust monitoring module; 101, Lightning rod; 102, Infrared high-definition camera unit; 103, Wind speed sensor; 104, Wind direction sensor; 105, Crossarm; 106, Temperature and humidity sensor; 107, Particulate matter monitoring unit; 108, LED display screen; 109, Integrated functional unit; 110, Pole; 111, Base;

[0048] 200. Dust suppression module;

[0049] 300. Automated perimeter fencing sprinkler system or automated foundation pit sprinkler system; 301. Water pipes; 302. Sprinkler heads;

[0050] 400. Automated main construction sprinkler system; 401. Water pipes; 402. Sprinkler heads; 403. Scaffolding;

[0051] 500. Automated tower crane sprinkler system; 501. Tower crane; 502. Water pipe; 503. Sprinkler head; 504. Secondary booster pump;

[0052] 600. Automated flushing platform equipment; 601. Water collection ditch; 602. Water pipe; 603. Sprayer head; 604. Secondary booster pump;

[0053] 700. Water supply module; 701. Sewage tank; 702. Pipeline; 703. Primary sedimentation tank; 704. Secondary sedimentation tank; 705. Filtration tank; 706. Tertiary sedimentation tank; 707. Clear water tank. Detailed Implementation

[0054] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0055] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, system, product, or device.

[0056] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0057] Please see Figure 1 As shown in the figure, one embodiment of this application provides an intelligent variable frequency dust suppression system for construction sites. This intelligent variable frequency dust suppression system for construction sites includes:

[0058] The dust monitoring module is used to monitor particulate matter information at construction sites. It performs real-time monitoring of particulate matter at the construction site and can be installed at several locations within the site. Each module can monitor particulate matter within a radius centered on its installation location. In practical operation, it can be based on… Figure 9 The environmental factor identification and evaluation map of dust pollution sources at construction sites scientifically determines the layout scheme of dust monitoring modules within construction sites. Based on... Figure 9 As shown, the specific installation location of the dust monitoring module can be determined based on the dust pollution sources, environmental impact level, and pollution source area scores at the construction site. For example, when the environmental factor impact score m ≥ 20, the dust monitoring module is installed at the corresponding location. Dust monitoring modules are typically installed at locations such as the entrance of the construction site and the excavation ramp of the foundation pit where the environmental factor impact score m ≥ 20.

[0059] The dust suppression module is used to implement dust suppression operations at construction sites; please refer to [link / reference]. Figure 3 The dust suppression module includes automated spray cannon equipment, automated perimeter fencing spray equipment, automated foundation pit spray equipment, automated main construction spray equipment, automated tower crane spray equipment, and automated washing platform equipment; the dust suppression module includes the above-mentioned water spraying, sprinkling, or misting equipment installed in different areas of the construction site, which can carry out dust suppression operations for different scenarios and areas of the construction site.

[0060] The water supply module is used to collect and treat water to supply water to the dust suppression module during dust suppression operations. In order to reuse water resources and save water resources, the water supply module can collect rainwater, sewage generated during dust suppression operations, and other sewage and wastewater inside the construction site. After purifying and treating the collected water resources to obtain water resources that meet the corresponding standards, the above-mentioned water resources are supplied to the dust suppression module, effectively improving the system's water resource recycling and reducing water waste.

[0061] The variable frequency control module is used to control the working status of the dust suppression module and the water supply module based on dust particle information. Considering the working modes of dust suppression modules, including dust suppression equipment installed in different locations within the construction site, and the different water pressure requirements of different dust suppression equipment, in order to enable dust suppression equipment to adaptively start dust suppression operations according to the dust conditions at its location and to obtain a stable and sufficient water supply during dust suppression operations, the variable frequency control module is used to control the working status of the dust suppression module and the water supply module based on dust particle information, dynamically regulate the operation of the dust suppression equipment, achieve precise and efficient dust control, and also optimize the utilization efficiency of water resources and energy.

[0062] The cloud platform connects to both the dust monitoring module and the frequency converter control module. It receives and processes dust particle information monitored by the dust monitoring module and sends control information to the frequency converter control module, which then instructs the dust suppression module and water supply module to operate in the appropriate modes. The dust monitoring module, linked to the frequency converter control module via the cloud platform, can automatically trigger the dust suppression module based on real-time collected dust data, achieving intelligent dust suppression.

[0063] Mobile phones or computers serve as user terminals, connecting to the cloud platform to obtain information on dust particles and the cloud platform's control over the operation modes of the dust suppression and water supply modules. This allows users to view the dust particle information and the real-time operation status of the dust suppression and water supply modules via their mobile phones or computers, enabling remote monitoring and management.

[0064] Please see Figure 2 The dust monitoring module 100 includes a base 111 and a pole 110 mounted on the base 111. The base 111 can be fixed to the ground with expansion bolts to ensure the overall stability of the dust monitoring module 100. The pole 110 is equipped with a lightning rod 101, an infrared high-definition camera unit 102, a wind speed sensor 103, a wind direction sensor 104, a temperature and humidity sensor 106, a particulate matter monitoring unit 107, an LED display screen 10, and an integrated functional unit 109. Near the top of the pole 110, there are two horizontal arms 105. The wind speed sensor 103 and the wind direction sensor 104 are respectively located at both ends of one horizontal arm 105, and the temperature / humidity sensor 106 and the particulate matter monitoring unit 107 are respectively located at both ends of the other horizontal arm 105.

[0065] The infrared high-definition camera unit 102 is used to acquire infrared high-definition images of the construction site, facilitating subsequent identification of the dust presence range in the vicinity of the dust monitoring module 100 by recognizing the infrared high-definition images. The speed sensor 103 and wind direction sensor 104 detect wind speed and wind direction data in the vicinity of the dust monitoring module 100, respectively, providing a basis for determining the diffusion trend of dust particles under atmospheric motion. The temperature and humidity sensor 106 detects the ambient temperature and humidity in the vicinity of the dust monitoring module 100, providing a basis for subsequent analysis to determine the movement of dust particles in the atmospheric environment. The particulate matter monitoring unit 107 may include, but is not limited to, a total suspended particulate (TSP) sensor, a PM2.5 sensor, and a PM10 sensor, used to monitor the concentration of different types of particulate matter in the vicinity of the dust monitoring module 100. The integrated functional unit 109 may include, but is not limited to, a video server, a leakage current switch, a built-in GPRS, a data acquisition and transmission unit, a power control unit, a power supply, and a linkage extension unit, thereby providing stable power supply for the dust monitoring module 100 and enabling communication between the dust monitoring module 100 and the cloud platform. The data acquisition and transmission unit collects infrared high-definition images, environmental parameters such as wind speed, wind direction, temperature, and humidity, and the concentration of particulate matter in the atmosphere, and transmits this data to the cloud platform via the built-in GPRS. The LED display screen 10 is also connected to the integrated functional unit 109, receiving infrared high-definition images, environmental parameters such as wind speed, wind direction, temperature, and humidity, and data such as the concentration of particulate matter in the atmosphere, and displaying them in real time. The dust monitoring module 100 supports 24-hour operation, enabling continuous online monitoring of construction sites.

[0066] The cloud platform analyzes and processes infrared high-definition images, environmental parameters, and particulate matter concentration from the dust monitoring module 100 to obtain dust particulate matter information of the construction site. This allows the platform to determine the spatial distribution information of dust particulate matter concentration, the direction and speed of dust particulate matter movement and diffusion, and provides a basis for subsequent control of the operation mode of dust suppression modules in different locations within the construction site. This ensures that the dust suppression modules efficiently and quickly reduce the dust concentration in the corresponding areas.

[0067] Since humidity affects the concentration of particulate matter in the air, a compensation is made to the detected particulate matter concentration to improve accuracy, as shown in the following formula:

[0068]

[0069] C real : Corrected actual particulate matter concentration, final output value;

[0070] C sensor The sensor's original detection value, the initial data affected by humidity interference;

[0071] RH(t): Real-time humidity detection value (e.g., 70%), dynamically obtained through temperature and humidity sensors;

[0072] RH ref The reference humidity is set as the neutral reference point of the ambient humidity, preferably RH. ref =50%;

[0073] a: Humidity interference compensation coefficient, used to quantify the intensity of the influence of humidity on particulate matter measurement, preferably a = 0.25;

[0074] β: Time decay coefficient, which controls the dynamic decay rate of the effect of humidity;

[0075] t: Time variable, usually referring to the cumulative time since the humidity change occurred (unit: seconds / minute).

[0076] Meanwhile, the process of setting the spray water volume per unit time for the overall dust suppression module system based on dust particle information is as follows:

[0077] After the dust suppression module is triggered, the current dust particle concentration C(P, t) at the pre-arranged calibration location on the construction site is retrieved; where P represents the pre-arranged calibration location on the construction site with coordinates (x, y, z); and t represents the current time.

[0078] Retrieve the current dust diffusion velocity vector V = (v x v y v z );v x v y and v z These represent the velocity values ​​of dust diffusion in three dimensions;

[0079] Using the dust diffusion velocity vector V=(v x v y v z The diffusion dynamic compensation term for the pre-arranged calibration location P on the construction site is obtained from the current dust particulate matter concentration C(P,t) at the pre-arranged calibration location on the construction site.

[0080] The diffusion dynamic compensation term at the calibration position P is obtained using the following formula:

[0081]

[0082] Where Г(P, t) represents the diffusion dynamic compensation term at the calibration position P at the current time t; V represents the dust diffusion velocity vector; Let represent the concentration gradient operator, and Obtain it using the following formula:

[0083]

[0084] The current dust particulate matter concentration C(P,t) at the pre-arranged calibration location on the construction site is used to obtain the concentration change trend response item corresponding to the pre-arranged calibration location on the construction site;

[0085] The concentration change trend response term corresponding to the pre-arranged calibration locations on the construction site is obtained using the following formula:

[0086]

[0087] Where Y(P,t) represents the concentration change trend response term at the calibration location P at the current time t;

[0088] The amount of water sprayed per unit time at the pre-arranged calibration locations on the construction site is determined using the diffusion dynamic compensation term and the concentration change trend response term.

[0089] The amount of water sprayed per unit time at the pre-arranged marked locations on the construction site is obtained using the following formula:

[0090]

[0091] Where Q(P,t) represents the amount of water sprayed per unit time at a pre-arranged marker location on the construction site; k 01 This represents the baseline response coefficient, used to indicate the reference spray volume intensity per unit concentration [unit: L / (min·μg / m³]]. 3 )];k 02 represents the diffusion kinetic energy coefficient, used to indicate the adjustment parameter for compensating for energy transfer in the diffusion direction [unit: L·s / (min·m)]; k 03 This represents the trend response coefficient, used for proactive regulation of concentration growth rate.

[0092] In this embodiment, based on real-time parameters such as dust particle concentration and diffusion velocity vector, a diffusion dynamic compensation term and a concentration change trend response term are constructed. The spray water volume per unit time is calculated using a multi-parameter coupling formula, achieving precise matching between the dust suppression spray water volume and the dynamic changes in construction site dust. This effectively improves dust suppression performance and reduces water waste. The complex physical processes of dust diffusion and concentration changes are transformed into quantifiable compensation and response terms through mathematical formulas, making the dust suppression system's response mechanism clear and controllable, facilitating system debugging and optimization, and ensuring the stability and consistency of dust suppression operations. The introduction of a concentration change trend response term, combined with diffusion dynamic compensation, overcomes the limitations of static control based solely on the current concentration, enabling forward-looking judgment and regulation of dust development trends, allowing for early intervention in the generation of high-concentration dust and suppressing dust diffusion at its source.

[0093] Existing technologies often rely on single concentration values ​​or simple experience to set water volume. This embodiment incorporates multi-dimensional parameters such as dust diffusion velocity vectors, concentration gradients, and trends to comprehensively reflect the dynamic characteristics of dust. Water volume control is more aligned with actual dust suppression needs, effectively improving dust suppression efficiency while minimizing water consumption. It abandons empirical and extensive control logic, constructing a mathematical model based on fluid mechanics and diffusion theory. Gradient operators and dynamic compensation terms accurately characterize dust diffusion patterns, effectively improving water volume control precision. Furthermore, existing static quantity control is prone to "under-spraying" (insufficient dust suppression) or "over-spraying" (wasting water resources). This embodiment uses real-time dynamic parameter calculations to optimize water resource allocation, reduce unnecessary energy consumption, and achieve a balance between dust suppression efficiency and operating costs while ensuring dust suppression effectiveness. The combination of multidimensional parameters and mathematical models makes the system more adaptable to complex working conditions (such as sudden changes in wind direction and concentrated release of dust). Compared with existing technologies, it can maintain the dust reduction effect more stably in extreme or variable environments, reducing human intervention and system fluctuations.

[0094] Please see Figure 3 The dust suppression module includes automated spray cannon equipment, automated perimeter fencing spray equipment, automated foundation pit spray equipment, automated main construction spray equipment, automated tower crane spray equipment, and automated washing platform equipment, thereby implementing dust suppression operations on construction sites through water spraying, sprinkling, or misting.

[0095] Automated mist spraying equipment is mobile, allowing for dust suppression operations in the vicinity of different locations within a construction site. The equipment may include, but is not limited to, a water tank, a high-pressure pump, atomizing nozzles, a high-pressure fan, a guide tube, a horizontal rotation device, and an elevation control device. The high-pressure pump, consisting of a motor and a pressurizer, draws water from the tank, pressurizes it, and outputs it to the atomizing nozzles. The high-pressure fan generates a strong airflow, which is collected and forcefully sprayed out through the guide tube. The atomizing nozzles, installed at the front outlet of the guide tube, fully atomize the water supplied by the high-pressure pump, and the strong airflow from the guide tube propels the water mist from the nozzles for long-range spraying. The water tank provides a water supply to the automated mist spraying equipment. The horizontal rotation device and elevation control device are both connected to the guide tube drive, changing the horizontal rotation and elevation angles of the guide tube, enabling the automated mist spraying equipment to spray water mist at high speeds in different directions. The automated fog cannon equipment may also include a mechanical frame to support the overall structure of the automated fog cannon equipment; the mechanical frame may also be designed with a wheeled walking structure to facilitate rapid movement and change of the location of the automated fog cannon equipment.

[0096] Please see Figure 4The automated fencing sprinkler system and the automated foundation pit sprinkler system 300 are installed at the fencing and foundation pit of the construction site, respectively, to carry out dust suppression spraying operations on the areas adjacent to the fencing and foundation pit. The water inlet of each system is connected to a water supply module via a water pipe, and the outlet is connected to a water pipe 301, which is equipped with several nozzles 302. The water pipe 301 can be, but is not limited to, PPR (polypropylene) pipe, and the nozzles 302 can be, but are not limited to, stainless steel nozzles. The optical path layout for the automated fencing sprinkler system and the automated foundation pit sprinkler system is as follows: the main water switch is located at the starting point; the main pipeline is 4 meters long; the two ends of the water pipe are connected via a tee; a section of spray pipe is inserted at the top; and a straight connector is installed at the top to connect the nozzles to the pipeline. The spacing of the spray pipes can be adjusted according to actual needs. The water pipe is fixed to the fencing or foundation pit using clips and screws. The installation of the water pump for the automated fencing and automated foundation pit sprinkler systems is as follows: First, fix the water pump to the bracket with screws. After the electrical wiring is connected, install the rain shelter and fix it to the bracket with screws. After wrapping Teflon tape around the water pump connector, fix the water pipe to the water pump connector with screw clips. Similarly, wrap Teflon tape around the other end of the water pump connector and connect it to the pipeline. The installation of the intelligent controller for the automated fencing and automated foundation pit sprinkler systems is as follows: Considering the excellent waterproof performance of the intelligent controller, it can be directly fixed to the fencing. The internal wiring of the intelligent controller is pre-installed; only the power cord, remote control cord, water level alarm cord, and water pump power cord need to be connected.

[0097] Please see Figure 5 The automated main construction sprinkler system 400 is installed on the main body of construction equipment at a construction site to spray dust suppression in the area adjacent to the main body of the construction equipment. The water inlet of the automated main construction sprinkler system is connected to a water supply module via a water pipe, and a nozzle 402 is installed on a water pipe 401 connected to the water outlet. The water pipe 401 connected to the water outlet is supported on scaffolding 403. The water pipe 401 can be, but is not limited to, a PPR (polypropylene) pipe, and the nozzle 302 can be, but is not limited to, a high-pressure nozzle. The automated main construction sprinkler system also includes a water tank, a power mechanism, and a control mechanism; the water tank provides water for spraying; the power mechanism can be a multi-stage pump to provide power for water delivery; and the control mechanism controls the timed start and stop of the power mechanism. The difference between automated main construction sprinkler equipment and automated enclosure sprinkler equipment lies in the higher placement of the equipment to meet the needs of the main construction phase. For example, during the main construction phase, automated main construction sprinkler equipment can be installed at the first cantilever foundation of the external scaffolding; or, automated main construction sprinkler equipment can be installed at regular intervals on the outside of the external scaffolding to ensure that the sprinkler coverage meets the dust suppression requirements.

[0098] Please see Figure 6An automated tower crane sprinkler system 500 is installed on a tower crane at a construction site to suppress dust in the vicinity of the tower crane. The water inlet of the automated tower crane sprinkler system is connected to a water supply module via a water pipe, and the water outlet 502 is laid on the tower crane 501. A secondary booster pump 504 and several nozzles 503 are installed on the water outlet 502. The water pipe 502 can be, but is not limited to, PPR (polypropylene) pipe, and the nozzles 503 can be, but are not limited to, adjustable nozzles. The automated tower crane sprinkler system refers to the system that, after the tower crane is installed, uses pre-installed water spray equipment on the tower crane's slewing arm to achieve dust suppression at the construction site. Depending on the actual conditions of the construction site, the automated tower crane sprinkler system pressurizes water using a secondary booster pump or by installing a water pump in the clear water tank of the water supply module, delivering water to the top of the tower crane's slewing arm. Water, after being pressurized, is sprayed through nozzles, forming a mist or fine rain. With the help of the tower crane's boom rotation, it falls evenly over most of the construction site, achieving dust suppression. Automated tower crane sprinkler systems have a wide spray range, completely covering the area within the tower crane's rotation radius. The tower crane rotates 360 degrees during operation, providing a large coverage area and effectively meeting the dust suppression needs of the construction site. By spraying / mist onto the construction site, dust is significantly reduced, suppressing dust pollution and demonstrating significant pollution control and smog reduction effects. Automated tower crane sprinkler systems are intelligent sprinkler systems equipped with an automatic control system, capable of spraying water to suppress dust at fixed times and locations on the construction site; for example, it can be set to operate from 6:00 AM to 8:00 PM, spraying once per hour for 5-10 minutes each time, requiring no manual intervention and ensuring a clean and pollution-free construction site environment.

[0099] Please see Figure 7An automated washing platform device 600 is installed at the entrance and exit of a construction site to wash the sides and wheels of vehicles passing through. The water inlet of the automated washing platform device is connected to a water supply module 700 via a water pipe, and the water outlet is connected to a water collection ditch 602 located within a water collection ditch 601. A secondary booster pump 604 and several nozzles 603 are installed on the water outlet pipe 602. The automated washing platform device uses intelligent control and water recycling to clean the tires and sides of vehicles on a single axle, achieving a cleanliness level of over 80% and a cleaning speed of no more than 60 seconds per vehicle. Suitable for cleaning vehicle tires and sides at construction site entrances with moderate pollution, this system features: dual water pumps for water circulation; an automatic flocculant dosing device to accelerate sludge sedimentation and water recycling for effective cleaning; a highly intelligent modular design with dynamic operation indicators, enabling fully automated, unmanned operation; high structural load-bearing capacity and a special device design ensuring high safety and reliability; vehicles enter the wash tank at a uniform speed, and upon contact with the pressure plate sensor, the control system initiates the automatic washing program. High-pressure water jets thoroughly clean the vehicle's underside, sides, front, and rear tires, chassis, and body; wastewater from the washing process flows from the collection ditch within the grid platform into a sedimentation tank next to the equipment for sedimentation and separation, ensuring water quality for the next vehicle; the collection ditch connects to a water supply module, utilizing its internal sludge tank, three-stage sedimentation tank, and clear water tank for wastewater treatment; clear water is used for cyclical rinsing; the sludge tank is periodically cleaned and recycled using an excavator; and sludge from the sedimentation tank is directly discharged outside the tank by a sand pump for recycling.

[0100] Please see Figure 8The water supply module 700 includes a wastewater tank 701, a water treatment tank, and a variable frequency water pump. The wastewater tank 701 collects wastewater generated during dust suppression operations and transports it to the water treatment tank via pipeline 702. The water treatment tank includes at least one sedimentation tank, a filtration tank, and a clear water tank. The variable frequency water pump controls the clear water tank to supply water to the dust suppression module during dust suppression operations. The variable frequency water pump can change its speed according to the instructions of the variable frequency control module, making the pipeline pressure approach the set pressure. The pipeline can consist of PPR water pipes of various diameters, straight connectors, tees, and elbows for water flow. The water treatment tank includes, in sequence along the water flow direction, a primary sedimentation tank 703, a secondary sedimentation tank 704, a filtration tank 705, a tertiary sedimentation tank 706, and a clear water tank 707. The layout of the water supply module 700 needs to consider the following factors: First, reduce pipeline length: placing the water supply module in the center of the construction site ensures the shortest possible pipeline path, thereby reducing resistance and pressure loss during water transport. Second, improve water pressure stability: a central layout effectively maintains stable water pressure throughout the system, ensuring a consistent water pressure supply for the dust suppression module. Third, cover the construction site: a centrally located water supply module ensures a sufficient and uniform water supply to the entire construction site, especially areas with concentrated dust (such as around the perimeter fence and in the foundation pit area), achieving optimal dust suppression. The water supply module can also feed back water level information to the frequency converter control module, enabling dynamic adjustment of the water level and ensuring stable system operation.

[0101] The frequency conversion control module includes a frequency converter and solenoid valves. The frequency converter sends commands based on dust particle information to control the operating status of the dust suppression module and the water supply module. Specifically, the frequency converter sends commands to control the operating status of the dust suppression module and the water supply module, including: sending open / close commands to the solenoid valves to control the opening / closing status of the automated mist spraying equipment, automated perimeter fencing spraying equipment, automated foundation pit spraying equipment, automated main construction spraying equipment, automated tower crane spraying equipment, and automated washing platform equipment within the dust suppression module; sending power setting commands to the automated mist spraying equipment to control its operating power; and sending frequency control commands to the frequency conversion water pump in the water supply module to control the water supply pressure to the dust suppression module. Based on data provided by the dust monitoring module and different application scenarios, the frequency conversion control module generates the optimal spraying scheme. The frequency conversion control module also controls the water supply module to perform spraying operations and adjusts the dust suppression scheme within the dust suppression module.

[0102] Overall, this intelligent variable frequency dust suppression system for construction sites achieves precise and efficient dust control by dynamically adjusting the operation of dust suppression equipment through real-time detection of dust particles. It can also optimize the utilization efficiency of water resources and energy, is flexibly applicable to various construction environments, significantly improves the dust control effect and resource conservation capacity, and effectively solves the air pollution problem caused by dust at construction sites.

[0103] The above is only one specific embodiment of the present invention, and any improvements made based on the concept of the present invention shall be considered within the scope of protection of the present invention.

Claims

1. An intelligent variable frequency dust suppression system for construction sites, characterized by, The dust monitoring module is used for real-time monitoring of a construction site to obtain dust particle information, and the dust monitoring module has a plurality of dust monitoring modules respectively arranged at different positions in the construction site. Each dust monitoring module can monitor dust particle information in a range formed with a preset radius distance and a center point of the installation position of the dust monitoring module. The dust reduction module is used for dust reduction operation on the construction site. The water supply module is used for collecting and processing water to supply water to the dust reduction module during the dust reduction operation. The frequency conversion control module is used for controlling the working state of the dust reduction module and the water supply module according to the dust particle information. The cloud platform is connected with the dust monitoring module and the frequency conversion control module respectively, and is used for receiving and processing dust particle information monitored by the dust monitoring module, and sending control information to the frequency conversion control module, so that the frequency conversion control module instructs the dust reduction module and the water supply module to operate according to the corresponding mode. The dust monitoring module comprises:

2. The intelligent variable frequency dust suppression system for construction sites as claimed in claim 1 wherein: An infrared high-definition camera unit is used for collecting infrared high-definition images of the construction site. An environment monitoring unit is used for monitoring environmental parameters of the construction site. A particulate matter monitoring unit is used for monitoring the concentration of particulate matter in the construction site. A data acquisition and transmission unit is used for collecting the infrared high-definition images, the environmental parameters and the concentration of particulate matter and transmitting them to the cloud platform. The environment monitoring unit comprises a wind speed sensor, a wind direction sensor and a temperature and humidity sensor.

3. The intelligent variable frequency dust suppression system for construction sites as claimed in claim 2, wherein: The particulate matter monitoring unit comprises a total suspended particulate sensor, a PM2.5 sensor and a PM10 sensor. The cloud platform analyzes and processes the infrared high-definition images, the environmental parameters and the concentration of particulate matter to obtain dust particle information of the construction site. The dust particle information includes dust particle concentration spatial distribution information, dust particle motion diffusion direction and speed information of the construction site. The dust reduction module comprises an automatic cannon fog device, an automatic fence spraying device, an automatic foundation pit spraying device, an automatic main body construction spraying device, an automatic tower crane spraying device and an automatic washing platform device, so as to implement dust reduction operation on the construction site by means of water spraying, spraying or spraying.

4. The intelligent variable frequency dust suppression system for construction sites as claimed in claim 1 wherein: The automatic cannon fog device comprises a water storage tank, a high-pressure pump, an atomizing nozzle, a high-pressure fan, a flow guide cylinder, a horizontal rotating device and an elevation control device.

5. The intelligent variable frequency dust suppression system for construction sites as claimed in claim 4, wherein: The water inlet end of the automatic fence spraying device and the automatic foundation pit spraying device is connected with the water supply module through a water pipe, and the water outlet end is connected with a water pipe, and a plurality of spray heads are arranged on the water pipe connected with the water outlet end. The water inlet end of the automatic main body construction spraying device is connected with the water supply module through a water pipe, and the water pipe connected with the water outlet end is provided with a spray head, and the water pipe connected with the water outlet end is arranged on a scaffold. The water inlet end of the automatic tower crane spraying device is connected with the water supply module through a water pipe, and the water pipe connected with the water outlet end is arranged on a tower crane, and the water pipe connected with the water outlet end is provided with a secondary booster pump and a plurality of spray heads.

6. The intelligent variable frequency dust suppression system for construction sites as claimed in claim 4, wherein: ​ The water inlet end of the automatic washing platform device is connected with the water supply module through a water pipe, and the water outlet end connected water pipe is arranged in a water collecting ditch, and the water outlet end connected water pipe is provided with a secondary booster pump and a plurality of spray heads.

7. The intelligent variable frequency dust suppression system for construction sites as claimed in claim 1 wherein: The water supply module comprises a sewage pool, a water treatment pool and a variable frequency water pump. The sewage pool is used for collecting sewage generated during the dust reduction operation and conveying the sewage to the water treatment pool through a pipeline. The water treatment pool comprises at least one sedimentation tank, a filter tank and a clean water tank; and the variable frequency water pump is used for controlling the clean water tank to supply water during the dust reduction operation of the dust reduction module.

8. The intelligent variable frequency dust suppression system for construction sites as claimed in claim 7, wherein: The water treatment pool comprises a first-stage sedimentation tank, a second-stage sedimentation tank, a filter tank, a third-stage sedimentation tank and a clean water tank in sequence along the water flow direction.

9. The intelligent variable frequency dust suppression system for construction sites as claimed in claim 1 wherein: The variable frequency control module comprises a variable frequency controller and an electromagnetic valve. The variable frequency controller sends an instruction according to the dust particle information to control the working states of the dust reduction module and the water supply module.

10. The intelligent variable frequency dust suppression system for construction sites as claimed in claim 9, wherein: The variable frequency controller sends an instruction to control the working states of the dust reduction module and the water supply module, which comprises: sending an opening / closing instruction to the electromagnetic valve to control the opening / closing states of the automatic cannon fog device, the automatic fence spraying device, the automatic foundation pit spraying device, the automatic main body construction spraying device, the automatic tower crane spraying device and the automatic washing platform device in the dust reduction module; sending a power setting instruction to the automatic cannon fog device to control the working power of the automatic cannon fog device; sending a frequency control instruction to the variable frequency water pump of the water supply module to control the water supply pressure of the water supply module to the dust reduction module.

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