A spray device for reducing particulate matter in an underground garage and a method of use

Abstract

The application discloses a kind of spray device and use method for reducing particulate matter of underground garage, including parking stall, multiple infrared induction devices are installed on the ventilation duct of the top of the parking stall, ground is also installed on the parking stall at the rear wheel of car Ground load device, ground load device is close to car stop, and spray device is installed on car stop, when infrared induction device and ground load device are excited simultaneously when car is driven out of parking stall, start spray device, ground load device includes base and ground load panel, support frame and support anchor rod are arranged between base and ground load panel, both sides of ground load panel close to bottom are equipped with piezoelectric device, and piezoelectric device is electrically connected with spray device.The application charges spray device by ground load device combined with piezoelectric material, to avoid the security risk caused by laying pipeline;Determine whether vehicle is in parking stall by infrared induction device and ground load device combination;Spray material uses special material, reacts with tail gas, and improves basement environment.

Description

Technical Field

[0001] This invention relates to a spraying device and its usage method, and more particularly to a spraying device and its usage method for reducing particulate matter in underground parking garages. Background Technology

[0002] Underground parking garages are enclosed or semi-enclosed spaces with poor air circulation, resulting in severe particulate matter pollution. Maintaining cleanliness and reducing particulate matter levels in underground parking garages is therefore of paramount importance. With rapid urbanization, the number of cars in cities is increasing dramatically, leading to a surge in the utilization rate of underground parking garages. In these enclosed or semi-enclosed spaces, poor air circulation makes timely air dissipation difficult, and the accumulation of particulate matter from vehicle traffic and subsequent starts and stops further complicates the process. Therefore, to meet the cleanliness requirements of underground parking garages, regular cleaning by staff is necessary, consuming significant manpower and resources, and maintaining a consistently clean environment in the underground garage is challenging.

[0003] Prior to this invention, patent applications such as 201811395796.X had disclosed devices for particulate matter control in underground parking garages. Existing devices for particulate matter control in underground parking garages mainly absorb toxic gases emitted by automobile exhaust by enhancing the ventilation performance of the underground parking garage. However, their effect on controlling total particulate matter indoors is not as good as that of spraying an aqueous solution. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a convenient, efficient, and intelligent spraying device and method for reducing particulate matter in underground parking garages.

[0005] Technical solution: The present invention includes a parking space, on which multiple infrared sensing devices are installed on the ventilation duct at the top of the parking space. A weighbridge device is also installed on the ground at the rear wheel of the car in the parking space. The weighbridge device is close to the vehicle barrier. A spray device is installed on the vehicle barrier. When the car drives out of the parking space, the infrared sensing devices and the weighbridge device are activated simultaneously, and the spray device is activated.

[0006] The vehicle barrier is equipped with a spray device on the side facing the car. The spray device includes multiple nozzles, and each nozzle is equipped with a baffle above it. The baffle is closed when not in use to protect the nozzle.

[0007] The weighbridge device includes a base and a weighbridge panel, with a support frame and support anchors provided between the base and the weighbridge panel.

[0008] The weighbridge panel is equipped with piezoelectric devices on both the front and back sides near the bottom. The piezoelectric devices are electrically connected to the spraying device and charge the spraying device through the piezoelectric devices.

[0009] Water immersion sensing lines are laid on the parking lines between the parking spaces. When the water immersion sensing lines come into contact with the sprayed liquid, the nozzles can adjust the spray force to reduce the amount of water sprayed.

[0010] The infrared sensing devices correspond to the front and rear wheels of the car, respectively.

[0011] The innermost part of the ventilation duct is also equipped with a camera recognition device, which is combined with an infrared sensor and a weighbridge to determine whether a vehicle is in a parking space.

[0012] A method of using a spray system for reducing particulate matter in an underground parking garage includes the following steps:

[0013] Step 1: Install infrared sensors on the ventilation ducts of the parking space, corresponding to the front and rear wheels of the car respectively;

[0014] Step 2: Install the weighbridge device at the rear wheel of the vehicle, with the weighbridge device positioned close to the vehicle stop.

[0015] Step 3: When the car enters the parking space, the rear wheels are placed on the weighbridge panel. The infrared sensor and the weighbridge device can simultaneously detect that the vehicle is parked in the parking space and charge the spray device through the piezoelectric device.

[0016] Step 4: After the car drives out of the parking space, the weighbridge device lifts up and, in conjunction with the infrared sensor, triggers the spray system.

[0017] The spraying device sprays mist water containing photocatalytic spraying materials, which reduces the content of toxic gases in the underground garage through an oxidation reaction, thus cleaning the air in the underground garage.

[0018] Beneficial effects: This invention uses a weighbridge device combined with piezoelectric materials to charge the sprinkler system, avoiding the safety hazards caused by laying pipelines; it uses an infrared sensor and a weighbridge device to determine whether a vehicle is in a parking space; the sprinkler material uses special materials that react with exhaust fumes to improve the basement environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the weighbridge device of the present invention;

[0021] Figure 3 This is a schematic diagram of the spraying device of the present invention. Detailed Implementation

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] like Figures 1 to 3As shown, the present invention includes a parking space. Multiple infrared sensors 2 are installed on the ventilation duct 1 at the top of the parking space. In this embodiment, two infrared sensors 2 are installed, corresponding to the front and rear wheels of the car respectively. A camera recognition device 14 is also installed on the innermost side of the ventilation duct 1. A weighbridge device 5 is also installed on the ground near the rear wheels of the car in the parking space. The weighbridge device 5 is close to the parking barrier 3. A spray device 4 is installed on the parking barrier 3. The spray device 4 includes multiple nozzles 12 installed on the side of the parking barrier 3 facing the car. Each nozzle 12 is equipped with a baffle 11 above it. Figure 3 As shown. The nozzle 12 can rotate up and down within the range of 0°-75°. Underground water pipes are laid as the water supply system for the sprinkler device 4. When the sprinkler device 4 is activated, the baffle 11 automatically opens, exposing the nozzle 12 to start cleaning the parking space. When not in use, the baffle 11 is closed, which serves to protect the nozzle 12.

[0024] Infrared sensor 2 and weighbridge device 5 are the switches for starting and stopping the sprinkler system 4. Through the combination of camera recognition device 14, infrared sensor 2, and weighbridge device 5, the system determines whether a vehicle is in a parking space. When a car leaves the parking space, infrared sensor 2 and weighbridge device 5 are simultaneously activated, and the sprinkler system 4 starts. The baffle 11 of the sprinkler system 4 automatically opens, revealing the nozzles 12, and begins spraying an environmentally friendly aqueous solution of vehicle exhaust fumes to clean the parking space and reduce the particulate matter content in the underground parking garage. The sprinkler system 4 will only be activated when infrared sensor 2 and weighbridge device 5 are triggered simultaneously to avoid accidental spraying onto vehicles or pedestrians due to a single switch activating the sprinkler system 4. Weighbridge device 5 will only be triggered when it senses pressure exceeding 400 kg to prevent pedestrians stepping on the weighbridge panel from triggering the device and causing pedestrians or other obstructions to simultaneously trigger both switches, resulting in them being sprayed by the sprinkler system.

[0025] like Figure 2 As shown, the weighbridge device 5 includes a base 10 and a weighbridge panel 6. A support frame 9 and a support anchor 8 are provided between the base 10 and the weighbridge panel 6. Piezoelectric devices 7 are provided on both the front and rear sides near the bottom of the weighbridge panel 6. The piezoelectric devices 7 are electrically connected to the spraying device 4, and charge the spraying device 4 through the piezoelectric devices 7. The piezoelectric devices 7 are made of polymer tablet material. When the weighbridge device 5 is under pressure, the tablet material is triggered to provide a voltage of more than 35V to charge the spraying device 4. Water immersion sensing lines 13 are laid on the parking lines between adjacent parking spaces. When the water immersion sensing lines 13 come into contact with the sprayed liquid, the control nozzles 12 adjust the spray force to reduce the spray of the aqueous solution.

[0026] The method of using the spray device of the present invention includes the following steps:

[0027] Step 1: Install two infrared sensors 2 on the ventilation duct 1 of the parking space. The infrared sensors 2 are installed at two points 1 / 3 and 2 / 3 of the distance from the front of the parking space, which is just right to meet the size of all large, medium and small cars. The two infrared sensors 2 correspond to the front and rear wheels of the car, respectively. The sensing range of the infrared sensors 2 should be more than 0.5m.

[0028] Step 2: Install the weighbridge device 5 at the rear wheels of the car. The weighbridge device 5 is installed close to the wheel stop 3, occupying about 1 / 3 of the total area of ​​the parking space. This can effectively ensure that the rear wheels are parked on the weighbridge panel 6. The weighbridge device 5 can only be triggered by a pressure of more than 400 kg. This can prevent the sprinkler device 4 from spraying pedestrians or other objects. When a person or vehicle is detected passing by, the sprinkler device 4 will stop immediately.

[0029] Step 3: When the car enters the underground parking space, the rear wheels are placed on the weighbridge panel 6. The infrared sensor 2 and the weighbridge device 5 can simultaneously sense that the vehicle is parked in the parking space, and apply pressure to the piezoelectric device 7 through the weight of the car to generate a potential difference, thereby charging the spray device 4.

[0030] Step 4: The sprinkler system will not be activated when the car drives into the parking space or is parked.

[0031] Step 5: After the car leaves the parking space, the weighbridge device 5 lifts and, in conjunction with the infrared sensor device 2, triggers the spray device 4 to spray a mist of water. This mist is sprayed only at the parking space. The mist contains photocatalytic spraying material, which can degrade harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, sulfur oxides, and lead compounds in vehicle exhaust. Through oxidation, it reduces the content of toxic gases in the underground parking garage, cleaning the air. The sprayed area does not exceed the front edge of the weighbridge, reaching a maximum of only 1 meter.

[0032] Data from air quality monitors clearly shows that the total particulate matter content in the indoor air of underground parking garages has been significantly reduced.

Claims

1. A spraying device for reducing particulate matter in underground parking garages, characterized in that, The system includes parking spaces, each equipped with a ventilation duct at the top of the parking space, with multiple infrared sensors corresponding to the front and rear wheels of the car. A weighbridge is also installed on the ground near the rear wheels of the car within each parking space, adjacent to a parking barrier. A sprinkler system is installed on the side of the parking barrier facing the car, comprising multiple nozzles, each with a baffle above it. The weighbridge system includes a base, a weighbridge panel, a support frame, support anchors, and piezoelectric devices located on the front and rear sides of the bottom of the weighbridge panel, electrically connected to the sprinkler system. Water immersion sensing lines are laid on the parking lines between the parking spaces, and a camera recognition device is installed at the innermost part of the ventilation duct. When a car leaves the parking space, the infrared sensors, the weighbridge system, and the camera recognition device work together to activate the sprinkler system.

2. A method of using a spray system for reducing particulate matter in an underground parking garage as described in claim 1, characterized in that, Includes the following steps: Step 1: Install infrared sensors on the ventilation ducts of the parking space, corresponding to the front and rear wheels of the car respectively; Step 2: Install the weighbridge device at the rear wheel of the vehicle, with the weighbridge device positioned close to the vehicle stop. Step 3: When the car enters the parking space, the rear wheels are placed on the weighbridge panel. The infrared sensor and the weighbridge device can simultaneously detect that the vehicle is parked in the parking space and charge the spray device through the piezoelectric device. Step 4: After the car drives out of the parking space, the weighbridge device lifts up and, in conjunction with the infrared sensor, triggers the spray system.

3. The method of using the spray device for reducing particulate matter in an underground garage according to claim 2, characterized in that, The spraying device sprays mist water, and the mist water contains photocatalytic spraying material.

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