Dust falling device for water conservancy construction

Abstract

The dust falling device for water conservancy construction comprises a base, a spraying barrel, an air supply system and a water supply system and further comprises a spraying power adjusting mechanism. The spraying power adjusting mechanism comprises a pressurization driving source and a wind collecting hopper, the pressurization driving source and the wind collecting hopper are connected with the water supply system and used for adjusting spraying power at a barrel opening of the spraying barrel, when field wind power is increased, the field wind power enters the pressurization driving source through the wind collecting hopper, the water pressure of a pipeline in the water supply system is increased, and then the spraying power is enhanced; the spraying power adjusting mechanism further comprises an anemograph, and the anemograph is connected with the air supply system and used for adjusting airflow in the spraying barrel, so that the larger the field wind power is, the larger the airflow generated in the spraying barrel is. The spraying power and the spraying direction of the fog gun machine are adjusted in real time according to changes of the wind direction and the wind speed of water conservancy construction site environment wind, and the problems that when the wind force and the wind speed of site wind change, the spraying range is prone to being reduced, and the dust falling effect is greatly reduced are solved.

Description

A dust suppression device for water conservancy construction Technical Field

[0001] This invention relates to the field of environmental dust suppression equipment technology, and in particular to a dust suppression device for water conservancy construction. Background Technology

[0002] Water conservancy construction sites are mostly open-air work areas. There are many processes such as earthwork excavation, sand and gravel transportation, and concrete mixing. A lot of dust is easily generated during the construction process. If it is not controlled in time, it will not only cause poor air quality at the construction site and affect the health of construction workers, but also cause pollution to the surrounding environment. This does not meet the relevant requirements for green construction and environmental protection management of water conservancy projects. At present, water conservancy construction sites mostly use fog cannons for on-site dust suppression.

[0003] Conventional fog cannons are operated manually or electrically. Commands are sent via buttons on the control box, and the controller, upon receiving the signals, drives the horizontal and vertical motors to rotate the cannon barrel. Simultaneously, frequency converters, speed controllers, and solenoid valves adjust the speed of the water pump and fan, as well as the valve opening, controlling the spray flow, range, and amount of mist. The advantages are that it only requires ordinary motors, switches, and frequency converters, lacks precision electronic sensors, is unaffected by moisture, dust, and vibration, and is not easily damaged in harsh conditions such as water conservancy construction and water-adjacent construction sites. However, conventional fog cannons have the following drawbacks: it is difficult to adjust the spray power in real time according to the environment. In water conservancy construction sites, which are often open and unobstructed areas with variable winds, direction, and speed, the spray power of conventional fog cannons is mostly manually set, resulting in a constant output power. When the wind is strong, the spray range is easily reduced, failing to reach the intended dust-generating area, significantly decreasing the dust suppression effect.

[0004] Therefore, how to provide a dust suppression device for water conservancy construction is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] One objective of this invention is to provide a dust suppression device for water conservancy construction. This invention adjusts the spray power and spray direction of the fog cannon in real time according to the changes in wind direction and speed at the water conservancy construction site. This solves the problem that when the wind force and speed at the site change, the spray range is easily reduced, and the fog droplets are easily blown away by crosswinds, making it difficult to accurately settle into the dusty area and significantly reducing the dust suppression effect.

[0006] A dust suppression device for water conservancy construction according to an embodiment of the present invention includes a base, a spray cylinder, an air supply system, and a water supply system, and further includes a spray power adjustment mechanism. The spray power adjustment mechanism includes a booster drive source and a wind collection hopper, which are connected to the water supply system and are used to adjust the spray power at the nozzle of the spray cylinder. When the on-site wind force increases, the wind enters the booster drive source through the wind collection hopper, thereby increasing the water pressure in the pipeline of the water supply system and thus enhancing the spray power. The spray power adjustment mechanism also includes an anemometer, which is connected to the air supply system and is used to adjust the airflow inside the spray cylinder so that the greater the on-site wind force, the greater the airflow generated inside the spray cylinder.

[0007] Furthermore, the spray cylinder is mounted on the base via a bracket, and the spray cylinder is rotatably connected to the bracket via a bearing seat. A rotation drive source is provided between the bracket and the spray cylinder, and the spray cylinder rotates up and down on the bracket via the rotation drive source.

[0008] Furthermore, the air supply system includes an axial flow fan and rectifier blades. The axial flow fan is fixedly installed at the tail end of the spray cylinder, and the rectifier blades are fixedly installed in the inner cavity of the spray cylinder.

[0009] Furthermore, the water supply system includes a water supply power source, an inlet pipe, a delivery pipe, a nozzle mounting plate, and multiple atomizing nozzles. The water supply power source is fixedly installed inside the base, the nozzle mounting plate is fixedly installed at the nozzle of the spray cylinder, the inlet pipe and the delivery pipe are fixedly installed at the inlet and outlet ends of the water supply power source, respectively, and the other end of the delivery pipe is fixedly connected to the nozzle mounting plate. Multiple atomizing nozzles are evenly installed on the nozzle mounting plate.

[0010] Furthermore, a load-bearing pile is fixedly connected to the bottom of the support. The load-bearing pile is rotatably connected to the base through a bearing. A fixed pipe is fixedly installed on the support. The fixed pipe passes through the load-bearing pile and the base so that the top end of the fixed pipe is located on the support and the bottom end is located at the bottom of the inner cavity of the base. Rotary universal joints are fixedly installed at both the top and bottom of the fixed pipe. The water supply pipe includes an inlet pipe and a outlet pipe. The bottom end of the inlet pipe is fixedly connected to the rotary universal joint at the top of the fixed pipe, and the top end of the outlet pipe is fixedly connected to the rotary universal joint at the bottom of the fixed pipe.

[0011] Furthermore, a load-bearing plate is fixedly installed on the load-bearing pile, and the load-bearing plate is located between the bracket and the base. The booster drive source is fixedly installed on the load-bearing plate. The water supply pipe includes a front pipe and a rear pipe. One end of the front pipe is fixedly installed at the water outlet of the booster drive source, and one end of the rear pipe is fixedly installed at the water inlet of the booster drive source. A parallel pipe is also fixedly connected between the front pipe and the rear pipe. The air collecting hopper is fixedly installed on the load-bearing plate, and one end is fixedly connected to the air inlet of the booster drive source.

[0012] Furthermore, the anemometer is electrically connected to the axial flow fan in the air supply system. The anemometer is fixedly installed on the load-bearing plate and located directly in front of the air collection hopper inlet.

[0013] Furthermore, the base and spray cylinder are also equipped with a cylinder direction adjustment mechanism, which is connected to the spray cylinder and is used to adjust the orientation of the spray cylinder so that the nozzle of the spray cylinder always faces the upwind direction.

[0014] Furthermore, the cylinder direction adjustment mechanism includes multiple wind vane tail fins, which are evenly fixedly installed on the circumferential surface of the tail end of the axial flow fan, with their front ends pointing towards the nozzle end of the spray cylinder and aligned with the axial direction of the spray cylinder.

[0015] Furthermore, the cylinder direction adjustment mechanism also includes a drive gear and a driven gear. The driven gear is fixedly installed on the load-bearing pile body, and the drive gear is rotatably connected to the base through a connecting shaft. A rotary drive source is fixedly installed inside the base, and the connecting shaft is driven to rotate by the rotary drive source. The drive gear and the driven gear are meshed together.

[0016] The beneficial effects of this invention are as follows: By installing an adjustable water pressure boosting drive source on the water supply pipe connected to the atomizing nozzle, and by setting up an air collecting hopper, the ambient wind is blown into the water supply drive source. The pressure inside the boosting drive source is adjusted by the wind force, thereby adjusting the water pressure inside the boosting drive source, and thus adjusting the spray power of the atomizing nozzle. At the same time, an anemometer is installed in front of the air collecting hopper inlet to sense the wind force and adjust the air supply system, thereby assisting in adjusting the spray range of the mist droplets. By adjusting the spray power in real time according to the ambient wind force, this invention solves the problem that conventional fog cannons have a constant output power, which easily leads to a reduction in the spray range when the wind force is strong, making it unable to settle into the expected dust area and significantly reducing the dust suppression effect.

[0017] This invention, by setting multiple wind vane tail fins on the circumference of the axial flow fan in the air supply system, utilizes the mechanical principle of automatic centering of the tail fin wind vane due to wind pressure difference. This ensures that the tail of the wind vane is always on the leeward side and the end of the wind vane's rotating shaft is always aligned with the upwind direction. Then, through a coaxial rotating main shaft and gear transmission pair, the real-time rotation angle of the wind vane is synchronously transmitted to the load-bearing pile of the spray cylinder, driving the spray cylinder to rotate horizontally. This ensures that the spray cylinder nozzle is always facing the oncoming wind direction, solving the problem that when the wind direction changes on site, the droplets are easily blown away by crosswinds, making it difficult to accurately settle into the dusty area, resulting in a significant decrease in dust suppression effect, or even the result of droplets drifting everywhere and ineffective operation. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 is a three-dimensional structural schematic diagram of a dust suppression device for water conservancy construction proposed in this invention; Figure 2 is a side structural schematic diagram of a dust suppression device for water conservancy construction proposed in this invention.

[0019] Figure 3 is a front structural schematic diagram of a dust suppression device for water conservancy construction proposed in this invention.

[0020] Figure 4 is a schematic diagram of the air supply system structure of the present invention.

[0021] Figure 5 is a schematic diagram of the cylinder direction adjustment mechanism of the present invention.

[0022] Figure 6 is a schematic diagram of part A in Figure 5 of the present invention.

[0023] Figure 7 is a schematic diagram of the water supply system structure of the present invention.

[0024] Figure 8 is a schematic diagram of part B in Figure 7 of the present invention.

[0025] Figure 9 is a schematic diagram of the spray power adjustment mechanism of the present invention.

[0026] Figure 10 is a schematic diagram of the structure of part C in Figure 9 of the present invention.

[0027] In the diagram: 100, base; 101, support; 102, rotation drive source; 103, load-bearing pile; 104, fixed pipe; 105, swivel universal joint; 106, load-bearing plate; 200, spray cylinder; 300, air supply system; 301, axial flow fan; 302, rectifier blades; 400, water supply system; 401, water supply power source; 402, water inlet pipe; 403, water delivery pipe; 404, spray nozzle. 405. Atomizing nozzle; 406. Water inlet pipe; 407. Water outlet pipe; 408. Front pipe; 409. Rear pipe; 410. Parallel pipe; 500. Spray power adjustment mechanism; 501. Boost drive source; 502. Air collection hopper; 503. Anemometer; 600. Cylinder direction adjustment mechanism; 601. Wind vane tail fin; 602. Drive gear; 603. Driven gear; 604. Rotary drive source. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0029] As shown in Figures 1 to 3, the dust suppression device for water conservancy construction provided in this embodiment of the invention includes a base 100, a spray cylinder 200, an air supply system 300, and a water supply system 400, as well as a spray power adjustment mechanism 500. The spray power adjustment mechanism 500 includes a booster drive source 501 and a wind collecting hopper 502, which are connected to the water supply system 400 and are used to adjust the spray power at the nozzle of the spray cylinder 200. When the wind force increases, it enters the booster drive source 501 through the wind collecting hopper 502, thereby increasing the water pressure in the pipeline of the water supply system 400 and thus enhancing the spray power. The spray power adjustment mechanism 500 also includes an anemometer 503, which is connected to the air supply system 300 and is used to adjust the airflow inside the spray cylinder 200 so that the greater the wind force, the greater the airflow generated inside the spray cylinder 200.

[0030] Traditional fog cannons are environmental dust suppression devices that rely on the principle of atomization to reduce dust. Their core workflow is as follows: the water supply system 400 delivers water to the atomizing nozzles 405 at the front of the spray cannon; the water pump pressurizes the water, causing it to form fine mist droplets through the nozzles; simultaneously, the fan operates at high speed, generating a high-pressure airflow, which is concentrated and guided through the spray cannon, propelling the mist droplets at high speed to a distance. The droplets adsorb and combine with dust particles in the air, causing the dust to become heavier and settle, thus achieving the purpose of dust suppression. However, traditional manually or electrically operated fog cannons are entirely controlled manually in an open-loop manner, lacking an automatic feedback adjustment mechanism. Their effectiveness is highly susceptible to external wind force and direction. In open-air water conservancy construction sites with strong winds and changing wind directions, the constant spray power is insufficient to counteract crosswind interference, and the mist droplets easily disperse.

[0031] In contrast, this application installs an adjustable water pressure booster 501 on the water supply system 400. Simultaneously, the ambient wind is directed into the booster 501 via the wind collection hopper 502. The pressure inside the booster 501 is adjusted by the wind force, thereby regulating the water pressure within the booster 501 and consequently the spray power of the atomizing nozzle. This ensures that the greater the external wind force, the greater the water pressure in the water supply system 400, resulting in stronger spray power. Furthermore, an anemometer 503 is installed in front of the inlet of the wind collection hopper 502 to sense the wind force and adjust the air supply system 300 accordingly. The stronger the external wind force, the greater the wind force provided by the air supply system 300. Through the coordination of these two systems, the ambient wind force is sensed, and the spray power is adjusted in real time. This solves the problem of conventional fog cannons having a constant output power, which, when the wind is strong, easily leads to a reduced spray range, preventing the spray from reaching the intended dust-generating area and significantly reducing the dust suppression effect.

[0032] Referring to Figures 7-10, in order to adjust the spray power of the atomizing nozzle, the water supply system 400 includes a water supply power source 401, a water inlet pipe 402, a water delivery pipe 403, a nozzle mounting plate 404, and multiple atomizing nozzles 405. The water supply power source 401 is fixedly installed inside the base 100, and the nozzle mounting plate 404 is fixedly installed at the nozzle opening of the spray cylinder 200. The water inlet pipe 402 and the water delivery pipe 403 are respectively fixedly installed at the water inlet end and the water outlet end of the water supply power source 401. The other end of the water delivery pipe 403 is fixedly connected to the nozzle mounting plate 404, and the multiple atomizing nozzles 405 are evenly installed on the nozzle mounting plate 404. A load-bearing plate 106 is fixedly installed on the load-bearing pile 103. The load-bearing plate 106 is located between the bracket 101 and the base 100. The booster drive source 501 is fixedly installed on the load-bearing plate 106. The water supply pipe 406 includes a front pipe 408 and a rear pipe 409. One end of the front pipe 408 is fixedly installed at the outlet end of the booster drive source 501, and one end of the rear pipe 409 is fixedly installed at the inlet end of the booster drive source 501. A parallel pipe 410 is also fixedly connected between the front pipe 408 and the rear pipe 409. The air collecting hopper 502 is fixedly installed on the load-bearing plate 106, and one end is fixedly connected to the air inlet end of the booster drive source 501. This application does not limit the specific structure of the water supply power source 401. It is preferably a booster pump. The specific structure and working principle of the booster pump are existing technologies and will not be described in detail here. Conventional water supply The operating principle of system 400 in a fog cannon: The booster pump operates, drawing external water into the inlet pipe 402. The pump impeller rotates to pressurize the water, allowing it to enter the delivery pipe 403 with a stable water pressure. As shown in Figure 1, a regulating valve is installed on the delivery pipe 403. The pressure regulating valve is used to manually adjust the water pressure in the pipeline and control the water supply flow. The high-pressure water flow is evenly delivered to each group of atomizing nozzles 405 at the front end of the spray cylinder 200 via the nozzle mounting plate 404. The atomizing nozzles 405 use a throttling and impact structure to break the high-pressure water flow into fine and uniform mist droplets. The water supply system 400 of a conventional fog cannon is mostly a constant pressure output. The pump speed and water supply flow are manually set, without adaptive pressure and speed regulation functions. The water pressure and droplet size remain fixed and can only be roughly adjusted by manual knob.

[0033] In contrast, this application provides a booster drive source 501 on the water supply pipe 403. This application does not limit the specific structure of the booster drive source 501, but it is preferably a pneumatic diaphragm pump. The pneumatic diaphragm pump has a water inlet, a water outlet, and an air inlet. The working principle of the pneumatic diaphragm pump in this application is as follows: the ambient natural wind is gathered by the front-end wind collector 502 and directly hits the windward diaphragm plate of the pneumatic diaphragm pump; the greater the wind force, the greater the wind pressure thrust acting on the diaphragm. Wind pressure pushes the windward diaphragm to move inward, compressing the sealed water chamber inside the pump body. The diaphragm's force stroke increases synchronously with the external wind speed. The inlet check valve closes, and the outlet check valve is pressure-operated, preventing backflow in the sealed water chamber. The water is mechanically squeezed by the diaphragm to form an instantaneous high-pressure water body. This ensures that the higher the natural wind speed, the higher the water outlet pressure. The high-pressure water body is delivered to the atomizing nozzle 405 on the spray cylinder 200, where the high-pressure water flow is refined and atomized, and the spray kinetic energy is increased. In other words, the stronger the wind, the higher the water pressure, the stronger the spray power, the longer the range, and the higher the atomization concentration. When the wind weakens or the gusts intermittently, the built-in reset spring pushes the diaphragm back to its original position, the inlet check valve opens, and water is automatically replenished, waiting for the next wind pressure squeeze, forming a continuous adaptive pressurization cycle. It adopts a pneumatic diaphragm pump connected to the 502 wind-facing structure of the air collection hopper. It utilizes natural wind pressure to directly drive the diaphragm in a mechanical squeezing motion, and works in conjunction with a one-way valve assembly on the pneumatic diaphragm pump to create an adaptive water pressure boosting system. The higher the outside wind speed, the greater the diaphragm squeezing stroke and water pressure increase synchronously. This allows for automatic adjustment of spray water pressure and jet power solely by natural wind force, even in windless and power-free conditions. This solves the problem of conventional fog cannons having a constant output power, which, when the wind is strong, easily leads to a reduced spray range, failing to reach the intended dust-generating area and significantly reducing dust suppression effectiveness. Due to the core principle of the pneumatic diaphragm pump structure, in windless environments, the pneumatic diaphragm pump lacks wind pressure thrust and cannot boost pressure. Since the device does not actively supply water, a parallel pipe 410 is connected between the front pipe 408 and the rear pipe 409 to ensure its normal operation in a windless environment. In a windless environment, the booster pump delivers atmospheric pressure water to the atomizing nozzle 405 through the parallel pipe 410, ensuring that the basic spraying function of the equipment does not fail. At this time, the spray pressure provided by the water supply system 400 and the air supply system 300 is at a normal level. In a windy environment, in order to avoid the spray range being reduced due to excessive wind, the natural wind acts on the pneumatic diaphragm pump through the wind collector 502, mechanically squeezing and building up pressure, superimposing high pressure on the main water circuit; it merges with the basic water supply pressure to achieve a doubling of water pressure, greatly improving the atomization intensity and spray range.

[0034] Referring to Figures 2 and 4, in order to correct the turbulence error of the air collecting hopper 502 and make the mechanical pressurization more accurate, the air supply system 300 includes an axial flow fan 301 and a rectifier blade 302. The axial flow fan 301 is fixedly installed at the tail end of the spray cylinder 200, and the rectifier blade 302 is fixedly installed in the inner cavity of the spray cylinder 200. The anemometer 503 is electrically connected to the axial flow fan 301 in the air supply system 300. The anemometer 503 is fixedly installed on the load-bearing plate 106 and located directly in front of the inlet of the air collecting hopper 502. The anemometer 503 is installed in the original wind-free area at the front end of the air collecting hopper 502 to collect the real environmental wind speed, so as to avoid the air collecting hopper 502 from concentrating the wind and increasing the speed, which would cause the pneumatic diaphragm pump to be over-pressurized by the concentrated wind, resulting in a surge in water pressure and an increase in the atomization spray range. Anemometer 503 collects real-world wind speed data and controls the air supply system 300 to reduce wind speed, providing a reference wind speed calibration for pressurizing the pneumatic diaphragm pump and preventing purely mechanical malfunctions. When there is a light breeze, the pneumatic diaphragm pump may have insufficient air pressure, making it difficult to push the diaphragm and generate effective pressurization due to low water pressure. Anemometer 503 detects the low wind speed and triggers the air supply system 300 to increase the airflow within the spray nozzle 200, assisting in creating an oncoming airflow and increasing the jet kinetic energy. When there is a strong wind, the pneumatic diaphragm pump's mechanical compression intensifies, pressurizing the liquid path. Simultaneously, anemometer 503 identifies the strong wind, and the air supply system 300 automatically increases the airflow from the spray nozzle 200, pressurizing the air path. This creates a two-way linkage between high water pressure and strong airflow from the spray nozzle 200, significantly improving the penetration and atomization uniformity of the jet spray against the wind, compared to a single mechanical system. The pressurization effect is stronger; when the wind is strong or weak, the pneumatic diaphragm pump will experience water pressure fluctuations and spray density fluctuations. The anemometer 503 collects wind speed changes in real time and smoothly adjusts the air volume of the axial flow fan 301 through the air supply system 300 to buffer the wind fluctuations. With the spring reset structure of the diaphragm pump, the overall spray pressure and atomization effect are stabilized, and the equipment operates more smoothly. The anemometer 503 in front of the wind collection hopper 502 collects the real ambient wind speed in real time and adjusts the air volume of the air supply system 300 of the spray cylinder 200 in conjunction with it. On the one hand, it calibrates the natural wind disturbance error and ensures the accuracy of the pneumatic diaphragm pump's purely mechanical water supply pressurization. On the other hand, it provides supplementary air in low wind conditions, bidirectional gas-liquid synergistic pressurization in high wind conditions, and pressure stabilization and buffering in gust conditions. Together with the mechanical pneumatic diaphragm water circuit pressurization, it forms a two-layer linkage efficiency structure with mechanical as the main body and electrical control as the auxiliary body.

[0035] Referring to Figure 7, to adapt to different wind forces and adjust the spray height of the spray cylinder 200, the spray cylinder 200 is mounted on the base 100 via a bracket 101, and the spray cylinder 200 is rotatably connected to the bracket 101 via a bearing seat. A rotation drive source 102 is provided between the bracket 101 and the spray cylinder 200, allowing the spray cylinder 200 to rotate up and down on the bracket 101 via the rotation drive source 102. This application does not limit the specific structure of the rotation drive source 102, but preferably it is an electric push rod. The specific structure and working principle of the electric push rod are existing technologies and will not be described in detail here. A wind speed sensor is installed on the electric push rod to control its operation. An independent rotation drive source 102 is provided on the spray cylinder 200, which can adjust the up and down spray angle of the cylinder according to the external wind speed. In strong winds, the spray cylinder 200 rises, spraying a long-distance parabolic jet to counteract the downward pressure and drift of strong winds. In light winds or when there is no wind, the cylinder depresses downwards at a steep angle to precisely suppress dust near the ground, preventing it from drifting into the air. This works in tandem with the wind-driven pneumatic diaphragm pump, water pressure boosting system, and the 503 anemometer-linked air supply system to achieve three-dimensional wind direction following and adaptive spraying.

[0036] As shown in Figures 7-10, in Example 2, due to the uncontrollable wind direction in the environment, in order to maximize the dust suppression effect and prevent the mist droplets from being dispersed and shifted by crosswinds when the wind direction changes, a load-bearing pile 103 is fixedly connected to the bottom of the support 101. The load-bearing pile 103 is rotatably connected to the base 100 through bearings. A fixed pipe 104 is fixedly installed on the support 101, passing through the load-bearing pile 103 and the base 100, so that the top end of the fixed pipe 104 is located on the support 101 and the bottom end is located at the bottom of the inner cavity of the base 100. The fixed pipe 104 is fixedly equipped with swivel universal joints 105 at both the top and bottom. The water supply pipe 403 includes an inlet pipe 406 and a outlet pipe 407. The bottom end of the inlet pipe 406 is fixedly connected to the swivel universal joint 105 at the top of the fixed pipe 104, and the top end of the outlet pipe 407 is fixedly connected to the swivel universal joint 105 at the bottom of the fixed pipe 104. The swivel universal joints 105 prevent the inlet pipe 406 from twisting when the spray cylinder 200 rotates. The base 100 and the spray... The cylinder body 200 is also equipped with a cylinder direction adjustment mechanism 600, which is connected to the spray cylinder body 200 and is used to adjust the orientation of the spray cylinder body 200 so that the nozzle of the spray cylinder body 200 always faces the windward direction. The cylinder direction adjustment mechanism 600 includes multiple wind vane tail fins 601, which are evenly fixedly installed on the circumferential surface of the tail end of the axial flow fan 301, with their front ends pointing towards the nozzle end of the spray cylinder body 200 and aligned with the axial direction of the spray cylinder body 200. The cylinder direction adjustment mechanism 600 also includes... The device includes a drive gear 602 and a driven gear 603. The driven gear 603 is fixedly installed on the load-bearing pile body 103. The drive gear 602 is rotatably connected to the base 100 through a connecting shaft. A rotary drive source 604 is fixedly installed inside the base 100. The connecting shaft is driven to rotate by the rotary drive source 604. The drive gear 602 and the driven gear 603 are meshed together. This application does not limit the specific structure of the rotary drive source 604. It is preferably a servo motor. The specific structure and working principle of the servo motor are existing technologies and will not be described in detail here.

[0037] Due to the environmental impact of water conservancy construction sites, to avoid safety hazards caused by dust obstructing machinery operation, it is necessary to quickly suppress instantly generated dust clouds. Therefore, the spray nozzle must always spray against the wind at a 200° angle. When spraying against the wind, the water mist collides and mixes with the dust-laden airflow, instantly breaking the dust's suspension force. Large particles and fine dust quickly clump together and settle, preventing the dust from being blown far away with the wind. This provides a very strong near-source dust suppression effect. Spraying with the wind makes it easy for the water mist to carry dust to the surrounding areas of the factory, roads, and residential areas; spraying against the wind can firmly lock the dust within the work pollution area, preventing the dust from spreading across boundaries, ensuring more stable compliance with standards. This is particularly important for water conservancy construction sites. For complex dust sources, backwind spraying can precisely suppress instantly rising dust clouds, preventing dust from being lifted and drifting high in the wind. The low-altitude dust control effect is far better than with the wind. Multiple wind vane tail fins 601 are set around the axial flow fan 301 of the air supply system 300. Utilizing the mechanical principle of automatic centering of the tail fin wind vane due to wind pressure difference, the tail of the wind vane is always on the leeward side, and the end of the wind vane's rotating shaft is always aligned with the upwind direction. Then, through the coaxial rotating main shaft and gear transmission pair, the real-time rotation angle of the wind vane is synchronously transmitted to the load-bearing pile 103 of the spray cylinder 200, driving the spray cylinder to rotate horizontally. This ensures that the spray cylinder nozzle is always facing the oncoming wind direction, solving the problem of wind direction in the on-site environment. When the wind changes direction, the droplets are easily dispersed and deflected by crosswinds, making it difficult for them to settle accurately in the dust-generating area, resulting in a significant decrease in dust suppression effectiveness, and even problems such as droplets scattering everywhere and ineffective operation. Simultaneously, the combined effect of the air collection hopper 502 and the pneumatic diaphragm pump maximizes the pressurization effect. The spray nozzle is always directly facing the wind direction, ensuring that the air collection hopper 502 is always aligned with the wind, thus stabilizing the intake air pressure. This stable air pressure is input to the pneumatic diaphragm pump, providing continuous and efficient mechanical pressurization in the water circuit, preventing fluctuations in air pressure and water pressure instability caused by wind deviation. Furthermore, the pre-mounted anemometer 503 ensures accurate and synchronized wind data. The cylinder direction adjustment mechanism 600, along with the air collection hopper 502 and the anemometer 503, provides continuous and efficient pressurization. 3. When aligned with the oncoming wind, the anemometer 503 always collects the original wind direction and speed from the front, without deflection or side disturbance, providing accurate signals to the rear air supply system 300. In this embodiment, a purely mechanical cylinder direction adjustment mechanism 600 is added. Relying on the wind vane tail fin 601 to guide the wind, and with the help of gear transmission, the cannon cylinder is aligned with the oncoming wind in real time, ensuring the spraying operation in the face of headwind. At the same time, the wind collection bucket 502 and the anemometer 503 are always in the frontal wind zone, stabilizing the mechanical boosting air pressure of the pneumatic diaphragm pump and improving the accuracy of wind speed detection. In addition, with the pitch mechanism of the rotation drive source 102, horizontal and vertical omnidirectional wind direction adaptation is formed, effectively preventing water mist dispersion and enhancing the dust suppression effect.

[0038] Working principle: When the wind speed at the water conservancy construction site is too high and the wind direction changes, the servo motor drives the active gear 602 to rotate. Through the meshing connection between the active gear 602 and the passive gear 603, the passive gear 603 and the load-bearing pile 103 are driven to rotate, so that the nozzle direction of the spray cylinder 200 is closer to the windward direction, and the servo motor stops running. When a strong wind blows towards the spray cylinder 200, the mechanical principle of automatic centering of the tail-fin wind vane due to wind pressure difference is used to keep the tail of the wind vane constantly aligned. On the leeward side, the end of the wind vane shaft is always aligned with the upwind direction. Then, through the coaxial rotating main shaft and gear transmission pair, the real-time rotation angle of the wind vane is synchronously transmitted to the load-bearing pile 103 of the spray cylinder 200, driving the spray cylinder to rotate horizontally and follow the direction of the wind, so that the spray cylinder outlet is always facing the direction of the wind. This ensures that the wind collection hopper 502 is always facing the wind, thereby stabilizing the air pressure. The stable air pressure is input into the pneumatic diaphragm pump and directly hits the windward diaphragm plate of the pneumatic diaphragm pump. The greater the wind force, the greater the wind pressure thrust acting on the diaphragm. Wind pressure pushes the windward diaphragm to move inward, compressing the sealed water chamber inside the pump body; the force stroke of the diaphragm increases synchronously with the external wind speed, the inlet check valve closes and the outlet check valve is pressure-conducting, the sealed water chamber cannot flow back, and is mechanically squeezed by the diaphragm to form an instantaneous high-pressure water body; the higher the natural wind speed, the higher the water outlet pressure, and the high-pressure water body is delivered to the atomizing nozzle 405 on the spray cylinder 200, the high-pressure water flow is refined and atomized, and the spray kinetic energy is increased. At the same time, the anemometer 503 is installed in the original wind-free area at the front end of the wind collection bucket 502 to collect the real environmental wind speed, avoiding the wind collection bucket 502 from gathering wind and speeding up, which would cause the pneumatic diaphragm pump to be excessively pressurized by the gathered wind, resulting in a surge in water pressure, and the atomization spray range is increased. Anemometer 503 collects real-world wind speed data and controls the air supply system 300 to reduce wind speed. This provides a reference wind speed for calibrating the pneumatic diaphragm pump, preventing purely mechanical malfunctions. When there is strong natural wind, the pneumatic diaphragm pump's mechanical compression intensifies, pressurizing the liquid path. Simultaneously, anemometer 503 identifies strong winds, and the air supply system 300 automatically increases the airflow from the spray nozzle 200, pressurizing the air path. This creates a two-way linkage between high water pressure and strong airflow from the spray nozzle 200, significantly improving the penetration and atomization uniformity of the backwind spray, resulting in a stronger effect than simple mechanical pressurization.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dust suppression device for water conservancy construction, comprising a base (100), a spray cylinder (200), an air supply system (300), and a water supply system (400), characterized in that, It also includes a spray power adjustment mechanism (500); the spray power adjustment mechanism (500) includes a booster drive source (501) and a wind collector (502), the booster drive source (501) and the wind collector (502) are connected to the water supply system (400) and are used to adjust the spray power at the nozzle of the spray cylinder (200). When the wind force on site increases, it enters the booster drive source (501) through the wind collector (502), which increases the water pressure in the pipeline of the water supply system (400) and thus enhances the spray power; the spray power adjustment mechanism (500) also includes an anemometer (503), the anemometer (503) is connected to the air supply system (300) and is used to adjust the airflow in the spray cylinder (200) so that the greater the wind force on site, the greater the airflow generated in the spray cylinder (200).

2. The dust suppression device for water conservancy construction according to claim 1, characterized in that, The spray cylinder (200) is mounted on the base (100) via a bracket (101), and the spray cylinder (200) is rotatably connected to the bracket (101) via a bearing seat. A rotation drive source (102) is provided between the bracket (101) and the spray cylinder (200), and the spray cylinder (200) rotates up and down on the bracket (101) via the rotation drive source (102).

3. A dust suppression device for water conservancy construction according to claim 2, characterized in that, The air supply system (300) includes an axial flow fan (301) and a rectifier blade (302). The axial flow fan (301) is fixedly installed at the tail end of the spray cylinder (200), and the rectifier blade (302) is fixedly installed in the inner cavity of the spray cylinder (200).

4. A dust suppression device for water conservancy construction according to claim 3, characterized in that, The water supply system (400) includes a water supply power source (401), an inlet pipe (402), a water delivery pipe (403), a nozzle mounting plate (404), and multiple atomizing nozzles (405). The water supply power source (401) is fixedly installed inside the base (100), and the nozzle mounting plate (404) is fixedly installed at the nozzle of the spray cylinder (200). The inlet pipe (402) and the water delivery pipe (403) are respectively fixedly installed at the inlet end and the outlet end of the water supply power source (401). The other end of the water delivery pipe (403) is fixedly connected to the nozzle mounting plate (404), and multiple atomizing nozzles (405) are evenly installed on the nozzle mounting plate (404).

5. A dust suppression device for water conservancy construction according to claim 4, characterized in that, The bottom of the support (101) is fixedly connected to a load-bearing pile (103), which is rotatably connected to the base (100) through a bearing. A fixed pipe (104) is fixedly installed on the support (101). The fixed pipe (104) passes through the load-bearing pile (103) and the base (100) so that the top end of the fixed pipe (104) is located on the support (101) and the bottom end is located at the bottom of the inner cavity of the base (100). A rotary universal connector (105) is fixedly installed on both the top and bottom of the fixed pipe (104). The water supply pipe (403) includes an inlet pipe (406) and a outlet pipe (407). The bottom end of the inlet pipe (406) is fixedly connected to the rotary universal connector (105) at the top of the fixed pipe (104), and the top end of the outlet pipe (407) is fixedly connected to the rotary universal connector (105) at the bottom of the fixed pipe (104).

6. A dust suppression device for water conservancy construction according to claim 5, characterized in that, A load-bearing plate (106) is fixedly installed on the load-bearing pile (103). The load-bearing plate (106) is located between the bracket (101) and the base (100). The booster drive source (501) is fixedly installed on the load-bearing plate (106). The water supply pipe (406) includes a front pipe (408) and a rear pipe (409). One end of the front pipe (408) is fixedly installed at the water outlet of the booster drive source (501), and one end of the rear pipe (409) is fixedly installed at the water inlet of the booster drive source (501). A parallel pipe (410) is also fixedly connected between the front pipe (408) and the rear pipe (409). The air collecting hopper (502) is fixedly installed on the load-bearing plate (106), and one end is fixedly connected to one end of the air inlet of the booster drive source (501).

7. A dust suppression device for water conservancy construction according to claim 6, characterized in that, The anemometer (503) is electrically connected to the axial flow fan (301) in the air supply system (300). The anemometer (503) is fixedly installed on the load-bearing plate (106) and located directly in front of the inlet of the air collection hopper (502).

8. A dust suppression device for water conservancy construction according to any one of claims 1-7, characterized in that, The base (100) and the spray cylinder (200) are also provided with a cylinder direction adjustment mechanism (600). The cylinder direction adjustment mechanism (600) is connected to the spray cylinder (200) and is used to adjust the orientation of the spray cylinder (200) so that the nozzle of the spray cylinder (200) always faces the wind direction.

9. A dust suppression device for water conservancy construction according to claim 8, characterized in that, The cylinder direction adjustment mechanism (600) includes multiple wind vane tail fins (601), which are evenly fixed on the circumferential surface of the tail end of the axial flow fan (301), with their front ends pointing towards the nozzle end of the spray cylinder (200) and aligned with the axial direction of the spray cylinder (200).

10. A dust suppression device for water conservancy construction according to claim 8, characterized in that, The cylinder direction adjustment mechanism (600) also includes a drive gear (602) and a driven gear (603). The driven gear (603) is fixedly installed on the load-bearing pile body (103). The drive gear (602) is rotatably connected to the base (100) through a connecting shaft. A rotary drive source (604) is fixedly installed inside the base (100). The connecting shaft is driven to rotate by the rotary drive source (604). The drive gear (602) and the driven gear (603) are meshed together.

Images