Spraying device for preventing and controlling atmospheric pollution

By using a water pump driven by an electric motor and a waterproof motor in conjunction with a venturi tube, uniform mixing of the reagent and water is achieved, solving the problems of low reagent dilution efficiency and waste in existing devices, improving work efficiency and saving resources.

CN224180618UActive Publication Date: 2026-05-01LINYI MUNICIPAL ECOLOGICAL ENVIRONMENT BUREAU LINSHU COUNTY BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LINYI MUNICIPAL ECOLOGICAL ENVIRONMENT BUREAU LINSHU COUNTY BRANCH
Filing Date
2025-05-26
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing air pollution control spraying devices have low efficiency in diluting and stirring the chemicals, resulting in uneven stirring, low chemical dilution, increased operating costs, and waste of chemicals.

Method used

The system uses an electric pump and a waterproof motor in conjunction with a Venturi tube to achieve uniform mixing of the agent and water through the Venturi effect. The mixed liquid is atomized and sprayed out using an atomizing nozzle. Combined with the inverted conical tank design and filter plate structure, it ensures uniform mixing and efficient utilization of the agent and water.

Benefits of technology

It improves the efficiency of drug dilution, reduces stirring time, avoids drug waste, improves work efficiency, and saves water resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a spraying device for preventing and controlling atmospheric pollution, and belongs to the technical field of environmental governance equipment. Comprising a fixing frame and a water storage tank, the water storage tank is arranged on the fixing frame and connected with a motor, the motor is in driving connection with a water pump, a water inlet of the water pump is connected with the water storage tank through a first pipeline, a tank body is arranged at the top end of the fixing frame and connected with a plurality of air ducts, and waterproof motors are arranged in the air ducts and are in driving connection with fan blades. A second pipeline is arranged at an opening in the top of the tank body, the second pipeline is connected with the tank body through a first buckle, the second pipeline is connected with a water outlet of the water pump through a third pipeline, the second pipeline is connected with an atomizing nozzle, the fixing frame is connected with a medicine storage bottle, the third pipeline is provided with a Venturi tube, and the medicine storage bottle is connected with the Venturi tube through a fourth pipeline. According to the air pollution prevention and control spraying device, chemicals can be mixed at any time when used, waste of the chemicals and water is avoided, the chemicals are mixed uniformly, the preparation time before spraying is saved, and the spraying efficiency is improved.
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Description

A spray device for air pollution control Technical Field

[0001] This utility model belongs to the field of environmental governance equipment technology, specifically an air pollution control spray device. Background Technology

[0002] Air pollution refers to the phenomenon where the concentration of pollutants in the atmosphere reaches a harmful level, damaging the ecosystem and the conditions for normal human survival and development, and causing harm to people and things. Its causes include natural factors (such as volcanic eruptions, forest disasters, rock weathering, etc.) and human factors (such as industrial waste gas, fuel, vehicle exhaust, and nuclear explosions, etc.), with the latter being more significant. Air pollutants enter the atmosphere from human or natural sources (input), participate in the atmospheric cycle, and after a certain residence time, are removed from the atmosphere through chemical reactions, biological activities, and physical sedimentation (output). If the output rate is less than the input rate, they will accumulate relatively in the atmosphere, causing an increase in the concentration of certain substances in the atmosphere. When the concentration increases to a certain level, it will directly or indirectly cause acute or chronic harm to people, organisms, or materials, and the atmosphere will be polluted. In order to prevent and control air pollution, workers need to carry out regular spraying.

[0003] When carrying out spraying operations, workers typically pour the pesticide into a storage tank, dilute it with water, stir it, and then spray it outwards through the spraying mechanism. However, the stirring mechanism design on existing spraying devices is relatively simple, usually using a single stirring blade to stir and dilute the pesticide in the storage tank. This stirring method results in uneven mixing of the pesticide and water, leading to low pesticide dilution and requiring longer stirring time, which greatly reduces work efficiency. Furthermore, if there is any water remaining after the spraying operation, the added pesticide shortens the shelf life of the pesticide solution after mixing with water, resulting in waste of the remaining water and pesticide, thus increasing usage costs. Summary of the Invention

[0004] To address the problems of low efficiency and uneven mixing of chemicals in existing air pollution control spray devices, as well as the inability to mix chemicals as needed, resulting in waste of chemicals and water, this utility model provides an air pollution control spray device.

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

[0006] An air pollution control spray device includes a fixed frame and a water tank. The water tank is connected to the bottom inner side of the fixed frame. A motor is connected to the water tank, and a water pump is connected to the output shaft of the motor. The water pump inlet is connected to the bottom of the water tank through a first pipe. A tank body is connected to the top of the fixed frame. Several air ducts are connected to the side of the tank body. A waterproof motor is connected to the inside of the air ducts. The output shaft of the waterproof motor drives the fan blades. A second pipe is provided at the top opening of the tank body. The second pipe is connected to the tank body through a first buckle. The second pipe is connected to the water pump outlet through a third pipe. Several evenly arranged atomizing nozzles are connected to the second pipe. Several medicine storage bottles are connected to the side of the fixed frame. A Venturi tube is provided on the third pipe. The medicine storage bottles are connected to the side wall of the Venturi tube through a fourth pipe.

[0007] A further improvement of this invention is that the bottom of the mounting frame is equipped with several casters. This facilitates the movement of the device and improves its ease of use.

[0008] A further improvement of this invention is that several second clips are installed on the side connection between the tank and the fixed frame, and the third pipe is connected to the side of the tank and the fixed frame through the second clips. This ensures a stable connection between the third pipe and the tank and the fixed frame, preventing the third pipe from disconnecting during the movement of the device.

[0009] A further improvement of this invention is that a valve is connected and installed on the fourth pipe. The valve can control the amount of pesticide dispensed, allowing the pesticide to be mixed with water in different proportions for spraying.

[0010] A further improvement of this invention is that the opening at the top of the tank is an inverted cone shape. The inverted cone shape guides the airflow from top to bottom, making the airflow into the tank more stable, while increasing the air velocity, so that the atomized liquid and air inside the tank mix more evenly.

[0011] A further improvement of this invention is that the top of the fixing frame is provided with a groove, the upper end of which communicates with the bottom of the tank, and the lower end of which is connected to the top of the water storage tank via a fifth pipe. A filter plate is slidably embedded in the groove. This allows the medicine that accumulates at the bottom of the tank but is not sprayed by the air duct to be filtered through the filter plate and returned to the water storage tank, thus saving water resources. Moreover, the medicine in the medicine is filtered and adsorbed, preventing it from contaminating the water in the original water storage tank.

[0012] A further improvement of this invention is that a baffle is connected and installed on the side of the filter plate near the groove opening, a sealing ring is connected and installed on the side of the baffle near the filter plate, and a handle is connected and installed on the side of the baffle away from the filter plate. After the filter plate is installed in the groove, the sealing ring can prevent the medicine from flowing out of the groove opening, and the handle makes it easy to push and pull the filter plate, facilitating the replacement of the filter plate.

[0013] A further improvement of this invention is that several vertically arranged baffles are installed inside the water storage tank, and the baffles are not connected to the upper and lower ends of the water storage tank. The baffles can reduce the fluctuation of the liquid during movement and prevent the influence of "inertial liquid flow", thereby making the whole vehicle more stable and safer during operation. Moreover, the fact that the upper and lower ends are not connected allows water to be added smoothly.

[0014] A further improvement of this invention is that several ribs are connected and installed at the corners of the side of the fixing frame. This makes the structure of the fixing frame more stable and improves its support.

[0015] A further improvement of this invention is that a conical block is provided at the center of the waterproof motor near the tank. The conical block guides the atomized medicine mixed with air into the air duct, allowing the rotating fan blades to spray the atomized medicine out.

[0016] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0017] In use, fill the water tank with clean water, add the required medication to the medicine bottle, start the waterproof motor to rotate the fan blades and blow air out of the blower, then start the water pump to draw water out of the tank. As the water passes through the Venturi tube in the third pipe, a negative pressure is created inside, drawing the medication from the medicine bottle through the fourth pipe. The mixture then flows to the atomizing nozzle, which atomizes the medication and sprays it into the tank. Because the blower continuously draws air outwards, a negative pressure is created inside the tank, causing air to enter through the top opening and mix with the atomized medication before being sprayed out of the blower. This device atomizes the medication, ensuring more uniform mixing, reducing preparation work, greatly improving efficiency, and avoiding waste caused by mixing before use. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 is a cross-sectional structural diagram of this utility model.

[0021] Figure 3 is a magnified view of the structure at point A in Figure 1.

[0022] Figure 4 is a magnified schematic diagram of the local structure at point B in Figure 2.

[0023] Figure 5 is a partially enlarged structural schematic diagram of the filter plate 18 in this utility model.

[0024] In the attached diagram: 1. Fixture, 2. Water tank, 3. Motor, 4. Water pump, 5. First pipe, 6. Tank body, 7. Air duct, 8. Waterproof motor, 9. Fan blade, 10. Second pipe, 101. First buckle, 11. Third pipe, 12. Atomizing nozzle, 13. Medicine storage bottle, 14. Fourth pipe, 141. Valve, 15. Partition, 110. Venturi tube, 111. Second buckle, 16. Groove, 17. Fifth pipe, 18. Filter plate, 19. Baffle, 20. Sealing ring, 21. Handle, 22. Caster wheel, 23. Rib, 24. Conical block. Detailed Implementation

[0025] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0026] As shown in Figures 1-5, an air pollution control spray device includes a hollow fixed frame 1 and a rectangular water tank 2. The water tank 2 is bolted to the bottom of the inner side of the fixed frame 1. A motor 3 is connected and installed above the water tank 2. The output shaft of the motor 3 drives a water pump 4. The inlet of the water pump 4 is connected to the bottom of the water tank 2 through a first pipe 5. A tank body 6 is connected and installed at the top of the fixed frame 1. Several air ducts 7 are connected and installed on the side of the tank body 6. A waterproof motor 8 is installed inside the air duct 7. The output shaft drives and connects to the fan blade 9. A second pipe 10 is provided at the top opening of the tank 6. The second pipe 10 is connected to the tank 6 through the first buckle 101. The second pipe 10 is connected to the water outlet of the water pump 4 through the third pipe 11. Several evenly arranged atomizing nozzles 12 are connected and installed on the second pipe 10. Several medicine storage bottles 13 are connected and installed on the side of the fixing frame 1. A venturi tube 110 is provided on the third pipe 11. The medicine storage bottles 13 are connected to the side wall of the venturi tube 110 through the fourth pipe 14.

[0027] When in use, fill the water tank with clean water, add the corresponding medicine to the medicine bottle, start the waterproof motor 8 to make the fan blade 9 rotate, and blow the air from the upper opening of the tank 6 out of the blower 7. Then start the water pump 4 to draw out the clean water from the water tank 2. When the clean water passes through the Venturi tube 110 from the third pipe 11, the water flow speed increases due to the Venturi effect. According to Bernoulli's principle, the pressure is low where the flow velocity is high, so the pressure inside the Venturi tube 110 becomes low, which can draw the medicine in the medicine bottle 13 into the Venturi tube 110 through the fourth pipe 14. Then the high-pressure medicine mixed with the medicine will enter the second pipe 10 and be atomized and sprayed into the tank 6 through the atomizing nozzle 12. Since the blower 7 is constantly drawing air out, a negative pressure is formed inside the tank 6. The air enters the tank 6 from the upper opening and mixes with the atomized medicine. Together, they are sprayed out of the blower 7 into the outside air. This device atomizes the medicine, making the atomized droplets mix more evenly in the tank 6, reducing the need for initial stirring and preparation, greatly improving work efficiency. Moreover, the medicine and water are mixed as needed, and the medicine cannot be pumped into the pipeline when the water pump 4 is not working, avoiding the waste of medicine caused by mixing before use.

[0028] The bottom of the fixed frame 1 is equipped with several casters 22. This facilitates the movement of the device, which can be operated using only a traction device without the need for loading.

[0029] The tank body 6 is connected to the side of the fixed frame 1 by several second clips 111, and the third pipe 11 is connected to the tank body 6 and the fixed frame 1 through the second clips 111. This ensures that the third pipe 11 is securely connected to the tank body 6 and the fixed frame 2, preventing the third pipe 11 from disconnecting during the movement of the device.

[0030] A valve 141 is connected and installed on the fourth pipe 14. The valve 141 can control the amount of pesticide dispensed, so that the pesticide and water are mixed in different proportions for spraying.

[0031] The top opening of the tank 6 is an inverted cone shape. The inverted cone shape can guide the airflow from top to bottom, making the airflow into the tank 6 more stable, while increasing the air velocity, so that the atomized droplets inside the tank 6 mix more evenly with the air.

[0032] The mounting bracket 1 has a groove 16 on its top, with the upper end of the groove 16 connected to the bottom of the tank 6 and the lower end of the groove 16 connected to the top of the water storage tank 2 via a fifth pipe 17. A filter plate 18 is slidably embedded in the groove 16. This allows the unsprayed medicine that accumulates at the bottom of the inner side of the tank 6 to be filtered and adsorbed by the filter plate 18 and returned to the water storage tank, thus saving water resources. Furthermore, the medicine in the medicine is filtered and adsorbed, preventing contamination of the water in the storage tank.

[0033] A baffle 19 is connected and installed on the side of the filter plate 18 near the opening of the groove 16. A sealing ring 20 is connected and installed on the side of the baffle 19 near the filter plate 18, and a handle 21 is connected and installed on the side of the baffle 19 away from the filter plate 18. After the filter plate 18 is installed in the groove 16, the sealing ring 20 can prevent the medicine from flowing out of the opening of the groove 16, and the handle 21 makes it easy to push and pull the filter plate 18, facilitating the replacement of the filter plate 18.

[0034] The water tank 2 is internally connected to several vertically arranged baffles 15, which are not connected to the upper and lower ends of the water tank 2. The baffles 15 can reduce the back-and-forth fluctuation of the water in the water tank 2 due to acceleration and deceleration during the forward movement of the device, and prevent the influence of "inertial fluid flow", thereby making the whole vehicle more stable and safer during operation. Moreover, since the upper and lower ends of the baffles 15 are not connected to the water tank 2, water can flow between different baffles 15.

[0035] Several ribs 23 are connected and installed at the corners of the side of the fixing frame 1. This makes the structure of the fixing frame 1 more stable and improves its support.

[0036] The waterproof motor 8 has a conical block 24 at its center near the tank 6. The conical block 24 guides the atomized agent mixed with air into the air duct 7, and the rotating fan blades 9 spray the atomized agent into the air further.

[0037] The controller can be a common PLC controller, such as the Wecon PLC host LX3V-0806MR series. During use, the preset program first rotates the waterproof motor 8, driving the fan blade 9. Then, the motor 3 starts to drive the water pump 4 to draw clean water from the water storage tank 2. When the clean water flows quickly through the Venturi tube 110, it will draw the medicine into the pipeline and mix with the clean water. The mixed medicine is sprayed out from the atomizing nozzle 12, atomizing the medicine. It is further mixed in the tank 6 and then blown out into the atmosphere from the air duct 7. When stopping the operation, the water pump 4 should be stopped first, and then the fan blade 9 should be turned off to prevent the atomized medicine from not being drawn out in time and causing waste. The entire process is realized by one-button control of the PLC to carry out the spraying work, which is efficient and convenient.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air pollution control spray device, comprising a fixed frame (1) and a water storage tank (2), wherein the water storage tank (2) is connected and installed at the bottom inner side of the fixed frame (1), characterized in that, A motor (3) is connected and installed on the water storage tank (2). The output shaft of the motor (3) drives and connects to a water pump (4). The inlet of the water pump (4) is connected to the bottom of the water storage tank (2) through a first pipe (5). A tank body (6) is connected and installed on the top of the fixing frame (1). Several air ducts (7) are connected and installed on the side of the tank body (6). A waterproof motor (8) is connected and installed inside the air duct (7). The output shaft of the waterproof motor (8) drives and connects to a fan blade (9). A second pipe (10) is provided at the top opening of the tank body (6). The second pipe (10) is connected to the tank (6) through the first buckle (101). The second pipe (10) is connected to the outlet of the water pump (4) through the third pipe (11). Several evenly arranged atomizing nozzles (12) are connected and installed on the second pipe (10). Several medicine storage bottles (13) are connected and installed on the side of the fixing frame (1). A Venturi tube (110) is provided in the middle of the third pipe (11). The medicine storage bottle (13) is connected to the side wall of the Venturi tube (110) through the fourth pipe (14).

2. The air pollution control spray device according to claim 1, characterized in that, The bottom of the fixed frame (1) is connected to several casters (22).

3. The air pollution control spray device according to claim 2, characterized in that, Several second clips (111) are installed on the side of the tank (6) and the fixed frame (1), and the third pipe (11) is installed on the side of the tank (6) and the fixed frame (1) through the second clips (111).

4. The air pollution control spray device according to claim 3, characterized in that, A valve (141) is connected and installed on the fourth pipe (14).

5. The air pollution control spray device according to claim 4, characterized in that, The top opening of the tank (6) is an inverted cone shape.

6. The air pollution control spray device according to claim 5, characterized in that, The top of the fixed frame (1) is provided with a groove (16), the upper end of the groove (16) is connected to the bottom of the tank (6), the lower end of the groove (16) is connected to the top of the water storage tank (2) through the fifth pipe (17), and a filter plate (18) is slidably embedded in the groove (16).

7. The air pollution control spray device according to claim 6, characterized in that, A baffle (19) is connected and installed on the side of the filter plate (18) near the opening of the groove (16). A sealing ring (20) is connected and installed on the side of the baffle (19) near the filter plate (18). A handle (21) is connected and installed on the side of the baffle (19) away from the filter plate (18).

8. The air pollution control spray device according to claim 7, characterized in that, The water storage tank (2) is internally connected to several vertically arranged partitions (15), which are not connected to the upper and lower ends of the water storage tank (2).

9. The air pollution control spray device according to claim 8, characterized in that, The fixing frame (1) has several ribs (23) connected and installed at the side corner.

10. The air pollution control spray device according to claim 9, characterized in that, A conical block (24) is provided at the center of the side of the waterproof motor (8) near the tank body (6).