Multi-parameter air pollution real-time monitoring equipment

Abstract

The invention provides multi-parameter air pollution real-time monitoring equipment, and relates to the technical field of air monitoring. A detection sensor is fixed on a bottom plate of the electric control box in a penetrating manner; a rectangular track frame is fixedly mounted below the electric control box; an abutting plate and a square blocking frame which are vertically arranged at an interval are formed in the rectangular track frame, a circular through hole is formed in the abutting plate in a penetrating mode, the abutting plate abuts against and makes contact with the bottom end of the detection sensor, and the circular through hole communicates with an opening in the bottom end of the detection sensor; a peripheral retaining frame is slidably mounted in the rectangular track frame, a metal filter screen is arranged in the peripheral retaining frame in a covering manner, and the metal filter screen is slidably matched with the interval space between the abutting plate and the square blocking frame in a penetrating manner and covers the bottom side opening of the circular through hole. Compared with the prior art, the method has the advantages that the tedious steps that the metal filter screen needs to be detached and taken down, and an external brushing tool is used for manually brushing and cleaning the blockage of the metal filter screen can be omitted, and the efficiency and convenience of the blockage cleaning operation of the metal filter screen can be improved.

Description

Technical Field

[0001] This invention relates to the field of air monitoring technology, and in particular to a multi-parameter real-time air pollution monitoring device. Background Technology

[0002] Air pollutants are complex and diverse, including gaseous pollutants (sulfur dioxide, nitrogen oxides, ozone, carbon monoxide, etc.) and volatile organic compounds (VOCs). The concentration levels and distribution characteristics of these pollutants not only reflect the environmental costs of resource utilization processes such as regional industrial production and energy consumption, but are also closely related to resource evaluation factors such as the development value of land resources, the attractiveness of tourism resources, and the livability of cities. For example, high concentrations of PM2.5 may reduce the livability of regional land resources, while excessive ozone levels can affect the productivity of agricultural resources. These all require precise air pollution monitoring data to provide quantitative evidence for resource evaluation. Therefore, equipment for real-time monitoring of air pollution parameters is indispensable in a resource evaluation system.

[0003] Most existing air detection sensors are equipped with metal filters at their air inlets. However, these metal filters are usually fixed directly to the air inlet, making it impossible to clean them directly. They need to be removed periodically and manually cleaned with an external brush, which makes the cleaning of the metal filters extremely troublesome and inconvenient. Summary of the Invention

[0004] In view of this, the present invention provides a multi-parameter real-time air pollution monitoring device to solve the problem that the cleaning operation of the metal filter on the air detection sensor is extremely troublesome and inconvenient.

[0005] The technical solution proposed in this invention is as follows: a multi-parameter real-time air pollution monitoring device, specifically including an electrical control box; a detection sensor is fixedly mounted through the bottom plate of the electrical control box; a rectangular track frame is fixedly installed below the electrical control box; the rectangular track frame has abutment plates and square baffles arranged at vertical intervals inside, a circular through hole is opened through the abutment plate, the abutment plate abuts against the bottom end of the detection sensor, and the circular through hole communicates with the bottom opening of the detection sensor; an outer retaining frame is slidably installed inside the rectangular track frame, and a metal filter screen is covered inside the outer retaining frame, with the metal filter screen and the abutment plate and square baffles separated by a gap. The spacer slides through and covers the bottom opening of the circular through hole; a transmission motor is fixedly installed below the rectangular track frame, and the transmission motor and the outer retaining frame are driven by a gear and rack mechanism; a cleaning frame is slidably fitted on the rectangular track frame near the detection sensor, and stainless steel bristles are evenly distributed on opposite sides of the upper and lower side plates of the cleaning frame; the stainless steel bristles make brushing contact with the upper and lower sides of the metal filter screen; a cleaning motor is fixedly suspended at the bottom of the electrical control box, and a blower drive mechanism is fixedly installed on the rotating shaft of the cleaning motor. The blower drive mechanism can be used for both rotating the blower and driving the cleaning frame.

[0006] Furthermore, the gear and rack mechanism consists of a U-shaped drive frame and a gear. The U-shaped drive frame is welded to the bottom of the outer retaining frame, and the bottom rod of the U-shaped drive frame is a rack. The gear is fixedly mounted on the rotating shaft of the transmission motor, and the gear meshes with the rack for transmission.

[0007] Furthermore, the blower drive mechanism includes a blower impeller and a drive shaft; the blower impeller is composed of a concentrically arranged collar and a retaining ring, and a ring of blades twisted and welded between the two; the collar is fitted into and fixed to the shaft of the transmission motor; and an eccentrically arranged drive shaft is fixed to the bottom of the collar. The top of the cleaning frame is formed with a strip-shaped drive frame, and the drive pin is inserted into and slidably engaged with the strip-shaped drive groove inside the strip-shaped drive frame.

[0008] Furthermore, four vertical mounting columns are symmetrically welded to the bottom of the electrical control box, and the rectangular track frame is fixedly connected to the bottom of the four vertical mounting columns.

[0009] Furthermore, an L-shaped mounting plate is welded and hoisted at the middle position of the bottom end of one long side rod of the rectangular track frame, and the bottom end of the transmission motor is fixedly connected to the horizontal part of the L-shaped mounting plate.

[0010] Furthermore, a controller is fixedly installed inside the electrical control box, the detection sensor is communicatively connected to the controller, and both the transmission motor and the cleaning motor are electrically connected to the controller.

[0011] Furthermore, the controller is used to process the data transmitted to it by the detection sensor, and to control the start and stop of the conveyor motor and the cleaning motor.

[0012] Furthermore, the opening of the electrical control box is covered with a box cover, and a display screen is embedded in the box cover. The display screen is communicatively connected to the controller.

[0013] The multi-parameter real-time air pollution monitoring device provided by this invention has the following beneficial effects: 1. Through the power transmission of the blower impeller and the insertion and transmission of the drive shaft and the strip drive groove on the strip drive frame, the cleaning motor can use its rotational driving force to drive the strip drive frame, the cleaning frame, and the stainless steel brush bristles on the cleaning frame to slide back and forth at high frequency. This brushes and cleans the metal filter screen that is blocked in the exposed part of the sliding mechanism. This allows the metal filter screen to be mechanically brushed and cleaned directly on the bottom opening of the detection sensor without having to be disassembled and separated from it. Compared with the existing technology of directly fixing the metal filter screen to the bottom opening of the detection sensor, this eliminates the cumbersome steps of disassembling and removing the metal filter screen and using an external brushing tool to manually brush and clean it, thus improving the efficiency and convenience of the metal filter screen cleaning operation.

[0014] Second, during the unblocking process, the idle part of the metal filter screen located outside the space between the square baffle and the back plate and far away from the cleaning motor is slid and driven to the bottom opening of the circular through hole, indirectly temporarily covering and intercepting the bottom opening of the detection sensor. This avoids the lack of necessary covering and interception at the bottom opening during the unblocking process, which would cause dust and impurities brushed off the metal filter screen to directly enter the bottom opening without interception and filtration measures, thus weakening and reducing the detection accuracy of the detection sensor.

[0015] Third, during the unclogging process, when the blower impeller is driven by the high-speed rotation of the cleaning motor, the rotating blades on it can blow air downwards. The airflow generated by the rotation of the cleaning motor can blow and guide the dust and impurities removed by the brush downwards, preventing these dust and impurities from drifting around without the directional guidance of the airflow and falling back onto the unclogging metal filter screen, thus affecting the unclogging effect of the metal filter screen. Alternatively, they can drift through the internal space of the square baffle frame to the metal filter screen that is temporarily used to cover and intercept the bottom opening of the detection sensor, accelerating the clogging of that part of the metal filter screen.

[0016] Fourth, the blower impeller can be used to drive the drive shaft and also to blow dust, thus achieving a dual-purpose function. This eliminates the need for additional drive shaft components, which helps to simplify the structure of the monitoring equipment to some extent. As a dust blowing component, the blower impeller can share a cleaning motor drive with the cleaning frame, which eliminates the need for an additional drive unit for the blower impeller and helps to reduce the cost and power consumption of the monitoring equipment to some extent. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 A schematic diagram of the overall bottom structure of the present invention is shown; Figure 3 A schematic diagram of the internal structure of the electrical control box in this invention is shown; Figure 4 A diagram showing the relative positional relationship between the detection sensor and the rectangular track frame in this invention is provided. Figure 5 A bottom-view schematic diagram of the rectangular track frame in this invention is shown; Figure 6 A schematic diagram showing the disassembled state of the cleaning frame and the outer retaining frame in this invention is shown; Figure 7 A bottom-view schematic diagram of the blower impeller in this invention is shown; Figure 8 A schematic diagram of the cleaning frame in this invention is shown. Figure 9 An electrical control flowchart of the present invention is shown.

[0020] List of reference numerals in the attached diagram: 1. Electrical control box; 101. Vertical mounting column; 2. Box lid; 3. Display screen; 4. Rectangular track frame; 401. L-shaped mounting plate; 402. Square baffle; 403. Support plate; 404. Slide groove; 5. Transmission motor; 501. Gear; 6. Detection sensor; 7. Cleaning frame; 701. Strip drive frame; 8. Peripheral retaining frame; 801. Filtered driving frame; 9. Cleaning motor; 901. Blower impeller; 9011. Drive shaft; 10. Controller. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the described embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] Please refer to Figures 1 to 9 Example 1: This embodiment proposes a multi-parameter real-time air pollution monitoring device, including an electrical control box 1; a detection sensor 6 is fixedly mounted through the center of the bottom plate of the electrical control box 1; a rectangular track frame 4 is fixedly installed below the electrical control box 1; a support plate 403 and a square baffle 402 are formed at the middle of the interior of the rectangular track frame 4, which are arranged vertically and vertically. A circular through hole is opened through the support plate 403, which abuts against the bottom end of the detection sensor 6, and the circular through hole communicates with the bottom opening of the detection sensor 6; an outer retaining frame 8 is slidably installed inside the rectangular track frame 4, and a metal filter is covered inside the outer retaining frame 8. The metal filter slides through the gap between the support plate 403 and the square baffle 402, and covers the bottom opening of the circular through hole. A conveyor motor 5 is fixedly installed below the rectangular track frame 4, and the conveyor motor 5 is driven by the outer retaining frame 8 through a gear and rack mechanism; a cleaning frame 7 is slidably fitted on the rectangular track frame 4 near the detection sensor 6, and stainless steel bristles are evenly distributed on opposite sides of the upper and lower side plates of the cleaning frame 7; the stainless steel bristles are in brushing contact with the upper and lower sides of the metal filter screen; a cleaning motor 9 is fixedly suspended at the bottom of the electrical control box 1 near the detection sensor 6, and a blower drive mechanism is fixedly installed on the rotating shaft of the cleaning motor 9. The blower drive mechanism can be used for both rotating the blower and driving the cleaning frame 7; the inner sides of the two long side rods of the rectangular track frame 4 are provided with sliding grooves 404, and the two long side rods of the outer retaining frame 8 slide in corresponding positions with the two sliding grooves 404.

[0023] Preferably, the gear and rack mechanism consists of a U-shaped drive frame 801 and a gear 501. The U-shaped drive frame 801 is welded to the bottom of the outer retaining frame 8. The bottom rod of the U-shaped drive frame 801 is a rack. The gear 501 is fixedly mounted on the rotating shaft of the transmission motor 5. The gear 501 meshes with the rack for transmission.

[0024] Preferably, the blower drive mechanism includes a blower impeller 901 and a drive shaft 9011; the blower impeller 901 is composed of a concentrically arranged collar and a retaining ring, and a ring of blades twistedly welded between the two; the collar is fitted into and fixed to the shaft of the transmission motor 5; the bottom of the collar is fixedly connected to the eccentrically arranged drive shaft 9011; a strip-shaped drive frame 701 is formed at the top of the cleaning frame 7; the drive shaft 9011 is slidably engaged with the strip-shaped drive groove inside the strip-shaped drive frame 701.

[0025] Preferably, four vertical mounting columns 101 are symmetrically welded to the bottom of the electrical control box 1, and the rectangular track frame 4 is fixedly connected to the bottom of the four vertical mounting columns 101.

[0026] Preferably, an L-shaped mounting plate 401 is welded and hoisted at the middle position of the bottom end of a long side rod of the rectangular track frame 4, and the bottom end of the transmission motor 5 is fixedly connected to the horizontal part of the L-shaped mounting plate 401.

[0027] Implementation 2: This embodiment is based on Implementation 1, but with the following additions: A controller 10 is fixedly installed inside the electrical control box 1. The detection sensor 6 is connected to the controller 10 for communication. The conveyor motor 5 and the cleaning motor 9 are both electrically connected to the controller 10. The controller 10 is used to process the data transmitted to it by the detection sensor 6 and to control the start and stop of the conveyor motor 5 and the cleaning motor 9. The opening of the electrical control box 1 is covered by a box cover 2. A display screen 3 is embedded in the box cover 2 and is connected to the controller 10 for communication.

[0028] The working principle, specific details, implementation steps, functions and interrelationships of the features in the above embodiments, and the roles these features play in realizing this technical solution will be described and explained in detail below: The detection sensor 6 is mounted through the bottom plate of the electrical control box 1, with its bottom opening protruding from the outside of the electrical control box 1 and located below it. During operation, air from the external environment sequentially passes through the internal space of the square baffle 402, the filter holes of the metal filter, and the circular through-hole into the bottom opening of the detection sensor 6, and comes into contact with the detection element exposed in the bottom opening for detection. The detection sensor 6 can detect the components of various air pollutants, including gaseous pollutants (sulfur dioxide, nitrogen oxides, ozone, carbon monoxide, etc.) and volatile organic compounds (VOCs). When the content data of these pollutants is obtained, the content data is transmitted to the controller 10 in real time. The controller 10 processes the data through its built-in algorithm and quantifies the content data into visual parameters that represent the content of the corresponding pollutants. After the controller 10 calculates these visual parameters, it transmits them to the display screen 3 for on-site staff or ordinary citizens to view in real time. In this way, the device can realize real-time monitoring of the surrounding air pollution, and staff can understand and monitor the air pollution near the device in real time through the real-time changing display parameters on the display screen 3.

[0029] The metal filter screen is used to intercept dust and impurities in the air, preventing them from directly entering the bottom opening of the detection sensor 6 without proper filtration and adhering to, sticking to, and accumulating on the detection element in the bottom opening, thus affecting the detection accuracy of the detection sensor 6. Through a gear and rack mechanism, the transmission motor 5 can rotate in both directions, meshing to drive the outer retaining frame 8 and the metal filter screen to slide back and forth along the slide groove 404. When the metal filter screen is driven towards the cleaning motor 9, the portion of it that has become clogged after long-term use, located between the square baffle 402 and the abutment plate 403 to indirectly block the bottom opening of the detection sensor 6, can slide out from between the square baffle 402 and the abutment plate 403 to receive subsequent brushing cleaning. Power is transmitted through the blower impeller 901 and the drive shaft 9011... The strip drive slot on the strip drive frame 701 allows the cleaning motor 9 to use its rotational driving force to drive the strip drive frame 701, the cleaning frame 7, and the stainless steel brush bristles on the cleaning frame 7 to slide back and forth at high frequency. This brushes and cleans the metal filter screen that is blocked in the exposed part of the sliding mechanism. This allows the metal filter screen to be mechanically brushed and cleaned directly on the bottom opening of the detection sensor 6 without having to be removed and separated from it. Compared with the existing technology of directly fixing the metal filter screen to the bottom opening of the detection sensor 6, this eliminates the cumbersome steps of removing the metal filter screen and using an external brushing tool to manually brush and clean it, thus improving the efficiency and convenience of cleaning the metal filter screen.

[0030] In the above unblocking process, the idle part of the metal filter screen located outside the space between the square baffle 402 and the back plate 403 and far from the cleaning motor 9 is slidably driven to the bottom opening of the circular through hole, indirectly temporarily covering and intercepting the bottom opening of the detection sensor 6. This prevents the bottom opening from lacking necessary cover and interception during the unblocking process, which would cause dust and impurities brushed off the metal filter screen to directly enter the bottom opening without interception and filtration measures, thus weakening and reducing the detection accuracy of the detection sensor 6. In the above unblocking process, the blower impeller 901 When driven by the high-speed rotation of the cleaning motor 9, the rotating blades on it can blow air downwards. The airflow generated by the rotation of the cleaning motor 9 can blow and guide the dust and impurities removed by the brush downwards, preventing these dust and impurities from drifting around due to the lack of directional guidance of the airflow and falling back onto the cleaned metal filter screen, thus affecting the cleaning effect of the metal filter screen. Alternatively, they can drift through the internal space of the square baffle 402 to the metal filter screen that is temporarily used to cover and intercept the bottom opening of the detection sensor 6, accelerating the clogging of that part of the metal filter screen.

[0031] The blower impeller 901 can be used to drive the drive shaft 9011 and also to blow dust, thus having a dual-purpose function. This eliminates the need for additional transmission mounting components for the drive shaft 9011, which helps to simplify the structure of the monitoring equipment to a certain extent. As a dust blowing component, the blower impeller 901 can share a cleaning motor 9 with the cleaning frame 7, which eliminates the need for additional drive units for the blower impeller 901, and helps to reduce the cost and power consumption of the monitoring equipment to a certain extent.

[0032] The specific process of clearing blockages: The controller 10 is equipped with three timers. The first timer is used to record the usage time of the monitoring equipment. The usage time starts from when the monitoring equipment is turned on and used. The timer can also be set to the time interval of the clearing operation (for example, the clearing time interval can be set to one day or one month). The second timer is used to control the start and stop of the conveyor motor 5 when the time is up. The third timer is used to control the start and stop of the cleaning motor 9 when the time is up. When the first timer reaches its set clearing time, it transmits an end-of-time signal to the central control module of controller 10. Upon receiving this signal, the central control module starts the second timer and the conveyor motor 5, and controls the conveyor motor 5 to reverse. When the conveyor motor 5 reverses, it exposes the portion of the metal filter screen that has become clogged due to long-term use, located in the space between the square baffle 402 and the abutment plate 403. The second timer then begins its first timing segment, which is the duration of the first start-up of the conveyor motor 5. The first timing segment ends when the conveyor motor 5 has completely driven the clogged portion of the metal filter screen out. Upon the first timing segment's end, the second timer transmits an end-of-time signal to the central control module. Based on this signal, the central control module cuts off power to stop the second timer and the conveyor motor 5, keeping the clogged portion of the metal filter screen in the unblocked state. Simultaneously, the central control module starts the cleaning motor 9 and the third timer. When the cleaning motor 9 is started, it drives the cleaning frame 7 to reciprocate at high frequency, brushing and cleaning the clogged portion of the metal filter screen. The third timer... The starting time of the cleaning motor 9 is recorded. When the starting time reaches the preset time interval (the preset time interval is the standard duration for the cleaning motor 9 to perform cleaning), the third timer transmits the timeout signal to the central control module. The central control module stops the third timer and the cleaning motor 9 according to the timeout signal, and at the same time restarts the second timer and the conveyor motor 5. After the second timer is started, the second segment of the timer begins. After the conveyor motor 5 starts and rotates forward, the cleaned part of the metal filter screen is driven back to the space between the square baffle 402 and the abutment 403, resetting the part to the use state of shielding and filtering. When the second segment of the timer is the duration for the conveyor motor 5 to start running again, and when the conveyor motor 5 has completely driven the cleaned part of the metal filter screen to be reset, the second segment of the timer ends. At this time, the second timer transmits the timeout signal to the central control module. The central control module stops the second timer and the conveyor motor 5 according to the timeout signal. Thus, one cleaning operation is completed. This process can be repeated automatically and periodically to clean the metal filter screen.

[0033] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0034] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0035] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A multi-parameter air pollution real-time monitoring device, comprising an electric control box; a detection sensor is fixed through the bottom plate of the electric control box; characterized in that A rectangular track frame is fixedly installed below the electric control box; a resisting plate and a square blocking frame are formed inside the rectangular track frame and are arranged in an upper and lower spaced manner; a circular through hole is formed through the resisting plate; the bottom end of the detection sensor abuts against the resisting plate; and the circular through hole is in communication with the opening at the bottom end of the detection sensor; a peripheral retaining frame is slidably installed inside the rectangular track frame; a metal filter screen is arranged on the inside of the peripheral retaining frame; the metal filter screen is slidably fitted in the spacing between the resisting plate and the square blocking frame, and covers the opening at the bottom side of the circular through hole; a conveying motor is fixedly arranged below the rectangular track frame; the conveying motor is in transmission with the peripheral retaining frame through a gear and rack mechanism; a cleaning frame is slidably sleeved on the rectangular track frame near the detection sensor; stainless steel brush wires are uniformly distributed on the opposite sides of the upper and lower side plates of the cleaning frame; the stainless steel brush wires are in brushing contact with the upper and lower sides of the metal filter screen; a cleaning motor is fixedly suspended at the bottom of the electric control box; a blowing driving mechanism is fixedly installed on the rotating shaft of the cleaning motor; the blowing driving mechanism can be used for rotating blowing and driving the cleaning frame.

2. The multi-parameter real-time air pollution monitoring device according to claim 1, wherein, The gear and rack mechanism is composed of a U-shaped driving frame and a gear; the U-shaped driving frame is welded at the bottom of the peripheral retaining frame; the bottom side rod of the U-shaped driving frame is a rack; the gear is fixedly sleeved on the rotating shaft of the conveying motor; and the gear is in meshing transmission with the rack.

3. The multi-parameter real-time air pollution monitoring device according to claim 1, wherein, The blowing driving mechanism comprises a blowing impeller and a driving pull shaft; the blowing impeller is composed of an inner and outer concentrically arranged shaft ring and retaining ring, and a circle of twistedly arranged blades welded between the two; the shaft ring is sleeved and assembled with the rotating shaft of the conveying motor and is fixed on the rotating shaft; the shaft ring is fixedly connected with the eccentrically arranged driving pull shaft at the bottom; A strip-shaped driving frame is formed at the top end of the cleaning frame; the driving pull shaft is in plug-in and sliding fit with the strip-shaped driving groove inside the strip-shaped driving frame.

4. The multi-parameter real-time air pollution monitoring device according to claim 1, wherein, Four vertical mounting columns are symmetrically welded at the bottom of the electric control box; the rectangular track frame is fixedly connected with the bottom ends of the four vertical mounting columns.

5. The multi-parameter real-time air pollution monitoring device according to claim 1, wherein, An L-shaped mounting plate is suspended and welded at the bottom end of the rectangular track frame at the middle position of one long side rod; the bottom end of the conveying motor is fixedly connected with the horizontal part of the L-shaped mounting plate.

6. The multi-parameter real-time air pollution monitoring device of claim 1, wherein, A controller is fixedly installed inside the electric control box; the detection sensor is in communication connection with the controller; and the conveying motor and the cleaning motor are in electrical connection with the controller.

7. The multi-parameter real-time air pollution monitoring device according to claim 6, wherein, The controller is used for calculating and processing the data transmitted thereon by the detection sensor, and is used for controlling the start and stop of the conveying motor and the cleaning motor.

8. The multi-parameter real-time air pollution monitoring device according to claim 6, wherein, A box cover is plugged on the opening of the electric control box; a display screen is inlaidly installed on the box cover; and the display screen is in communication connection with the controller.

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