Environment-friendly air station purification filter device

Abstract

The utility model relates to an environmental protection air station purification filtering device, including front pipeline, rear pipeline and filter, the filter includes the box body, and its inside interval distribution has first baffle, second baffle and third baffle, and first and third baffle top and box body inside top wall fixedly connected, bottom end and box body inside bottom wall between leaving gap, second baffle bottom end and box body inside bottom wall fixedly connected, top and box body inside top wall between leaving gap, first baffle and box body left side wall between fixedly connected with a plurality of first filter screen, first baffle and second baffle between fixedly connected with a plurality of second filter screen, second baffle and third baffle between fixedly connected with a plurality of third filter screen, and the box body inside between third baffle and box body right side wall is equipped with folding filter core, and the aperture of first filter screen, second filter screen, third filter screen and folding filter core decreases gradually, and first, second and third filter screen all are inclined and present up and down interval distribution. The utility model can realize the effective rough filter and fine filter of air sample and be convenient to dismount replacement, more practical.

Description

Technical Field

[0001] This utility model belongs to the field of air station technology, specifically relating to an environmentally friendly air station purification and filtration device. Background Technology

[0002] Air quality monitoring stations, also known as air quality stations, are fundamental platforms for air quality control and assessment. They are crucial for evaluating air quality, preventing pollution risks, protecting public health, and formulating environmental policies. Currently, conventional air quality monitoring stations mainly consist of a sampling system, analytical instruments, a data processing system, and a data dissemination system. The sampling system is responsible for drawing in airborne pollutants and delivering them to the analytical instruments. It works in concert with components such as sampling pumps, sampling tubes, filters, and flow meters. The filters intercept dust and particulate matter in the air, ensuring that the air samples sent to the analytical instruments are relatively clean, thereby reducing interference and improving the accuracy of monitoring data. However, existing filters typically only perform simple coarse filtration of the air, resulting in poor purification effects, and they are difficult to disassemble and replace after long-term use, requiring improvement. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide an environmentally friendly air station purification and filtration device that can effectively perform coarse and fine filtration of air samples and is easy to disassemble and replace, so as to solve the above problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an environmentally friendly air purification and filtration device, comprising a front pipeline, a rear pipeline, and a filter. The filter includes a housing, within which a first partition, a second partition, and a third partition are spaced apart from left to right. The top ends of the first and third partitions are fixedly connected to the top wall of the housing, and a gap is left between their bottom ends and the bottom wall of the housing. The bottom end of the second partition is fixedly connected to the bottom wall of the housing, and a gap is left between its top end and the top wall of the housing. A plurality of first filter screens are fixedly connected between the first partition and the left side wall of the housing. A plurality of second filter screens are fixedly connected between the first and second partitions. A plurality of third filter screens are fixedly connected between the second and third partitions. A pleated filter element is vertically fixed inside the housing between the third partition and the right side wall of the housing. The pore sizes of the first, second, and third filter screens and the pleated filter element decrease sequentially, and the pore sizes of the first, second, and third filter screens decrease sequentially. Both the first and third filters are inclined and spaced vertically. An air inlet pipe is fixedly connected to the top of the box between the first partition and the left side wall of the box. An air outlet pipe is fixedly connected to the top of the box corresponding to the inner side of the folded filter element. An inverted L-shaped mounting plate is fixedly installed on the top of the box between the air inlet pipe and the air outlet pipe. A through groove is opened along the front-back direction on the horizontal part of the mounting plate. The tail end of the front pipe and the head end of the rear pipe are both facing downwards, and a support plate is fixedly connected between the two ends. A rotating shaft is vertically inserted and rotatably mounted on the support plate. The top end of the rotating shaft is fixedly connected to the output shaft of the motor fixedly mounted on the top of the support plate, and a fixing plate is fixedly connected to the bottom end. The air inlet pipe is inserted into the tail end of the front pipe, and the air outlet pipe is inserted into the head end of the rear pipe. The horizontal part of the mounting plate abuts against the bottom of the support plate. The fixing plate passes through the through groove to the bottom surface of the horizontal part of the mounting plate and abuts against the bottom surface of the horizontal part of the mounting plate after rotating 90 degrees.

[0005] Preferably, the outer diameter of the intake pipe is adapted to the inner diameter of the tail end of the front pipe, and the outer diameter of the exhaust pipe is adapted to the inner diameter of the head end of the rear pipe.

[0006] Preferably, a limiting disc is fixedly sleeved on both the air inlet pipe and the air outlet pipe, and a flange is fixedly provided on the bottom of the tail end of the front pipe and the bottom of the head end of the rear pipe, with the limiting disc abutting against the bottom of the flange.

[0007] Preferably, a sealing gasket is fixed on the bottom of the flange.

[0008] Preferably, the cross-sectional area of ​​the through groove is larger than the cross-sectional area of ​​the fixed plate.

[0009] Preferably, the outer side of the motor is provided with a protective cover.

[0010] The beneficial effects of this utility model are as follows: When the air station sampling system is working, the collected air sample can be transported through the front pipe and the air inlet pipe to the box between the first partition of the filter and the left side of the box, and flows from top to bottom. After passing through multiple first filters, it enters the box between the first partition and the second partition through the gap between the first partition and the bottom of the box, and flows from bottom to top. After passing through multiple second filters, it enters the box between the second partition and the third partition through the gap between the second partition and the top of the box, and then flows from top to bottom again. After passing through multiple third filters, it enters the box between the third partition and the right side of the box through the gap between the third partition and the bottom of the box, and passes through the folded filter element from the outside to the inside. After entering the inner side of the folded filter element, it is transported to the subsequent system through the air outlet pipe and the rear pipe. In this way, as the air sample flows through the filter, it first undergoes effective coarse filtration through the cooperation of the first, second, and third filters with decreasing pore sizes, achieving three stages and multiple stages of coarse filtration. The inclined setting of each filter also maximizes the interception and filtration area within a limited space, thereby enhancing the coarse filtration effect. Then, the pleated filter element with a smaller pore size than the third filter achieves further effective fine filtration of the air sample, resulting in a better overall purification effect, ensuring the interception and filtration quality of the air sample, improving the cleanliness of the air sample sent to the analyzer, and thus making it more conducive to ensuring the accuracy of monitoring data.

[0011] When the filter needs to be replaced after long-term use, with the machine stopped, first run the motor to rotate the fixing plate 90 degrees. This will align the fixing plate with the through slot, releasing the restriction on the horizontal part of the mounting plate. Then, pull out the inlet and outlet pipes to remove the old filter. Next, take the new filter and insert it with the inlet and outlet pipes aligned with the end of the front pipe and the beginning of the rear pipe until the mounting plate abuts against the bottom of the support plate. This achieves initial positioning and installation of the filter. At this point, the fixing plate, after passing through the through slot, is located on the bottom surface of the horizontal part of the mounting plate, with its top surface flush with the bottom surface of the horizontal part. Then, run the motor to rotate the fixing plate 90 degrees, making it perpendicular to the through slot. This will press the fixing plate against the bottom surface of the horizontal part of the mounting plate, securing it and further fixing the filter securely without affecting subsequent use. This allows for flexible and convenient disassembly and replacement of the entire filter, making it more practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the filter of this utility model;

[0014] Figure 3This is a top view of the filter structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the front and rear pipe structures of this utility model;

[0016] Figure 5 This is a bottom view of the front and rear pipes of this utility model.

[0017] Figure 6 This is a front view structural diagram of the filter of this utility model when connected to the front and rear pipelines.

[0018] The numbers in the diagram are as follows: 1 is the front pipe, 2 is the rear pipe, 3 is the filter, 4 is the housing, 5 is the first partition, 6 is the second partition, 7 is the third partition, 8 is the first filter screen, 9 is the second filter screen, 10 is the third filter screen, 11 is the pleated filter element, 12 is the air inlet pipe, 13 is the air outlet pipe, 14 is the mounting plate, 15 is the through groove, 16 is the support plate, 17 is the rotating shaft, 18 is the motor, 19 is the fixing plate, 20 is the limiting plate, 21 is the flange, 22 is the sealing gasket, and 23 is the protective cover. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] like Figures 1 to 6As shown, an environmentally friendly air purification and filtration device includes a front pipeline 1, a rear pipeline 2, and a filter 3. The filter 3 includes a housing 4, inside which a first partition 5, a second partition 6, and a third partition 7 are distributed from left to right. The top ends of the first partition 5 and the third partition 7 are fixedly connected to the inner top wall of the housing 4, and a gap is left between their bottom ends and the inner bottom wall of the housing 4. The bottom end of the second partition 6 is fixedly connected to the inner bottom wall of the housing 4, and a gap is left between its top end and the inner top wall of the housing 4. A plurality of first filter screens 8 are fixedly connected between the first partition 5 and the left side wall of the housing 4. A plurality of second filter screens 9 are fixedly connected between the first partition 5 and the second partition 6. A plurality of third filter screens 10 are fixedly connected between the second partition 6 and the third partition 7. A pleated filter element 11 is vertically fixed inside the housing 4 between the third partition 7 and the right side wall of the housing 4. The pore sizes of the first filter screens 8, second filter screens 9, third filter screens 10 and pleated filter element 11 decrease sequentially, and the first filter screens 8, second filter screens 9 and third filter screens 10 are all inclined and distributed at intervals. An air inlet pipe 12 is fixedly connected to the top of the housing 4 between the first partition 5 and the left side wall of the housing 4. An air outlet pipe 13 is fixedly connected to the top of the housing 4 corresponding to the inner side of the pleated filter element 11. An inverted L-shaped mounting plate 14 is fixedly installed on the top of the housing 4 between the air inlet pipe 12 and the air outlet pipe 13. A through groove 15 is opened along the front-back direction on the horizontal part of the mounting plate 14. The tail end of the front pipe 1 and the head end of the rear pipe 2 both face downwards, and a support plate 16 is fixedly connected between the two ends. A rotating shaft 17 is vertically inserted through the support plate 16 and rotatably mounted. The top end of the rotating shaft 17 is fixedly connected to the output shaft of the motor 18, which is fixedly mounted on the top of the support plate 16, and the bottom end is fixedly connected to a fixing plate 19. The intake pipe 12 is inserted into the tail end of the front pipe 1, the exhaust pipe 13 is inserted into the head end of the rear pipe 2, and the horizontal part of the mounting plate 14 abuts against the bottom of the support plate 16. The fixing plate 19 passes through the through groove 15 to the bottom surface of the horizontal part of the mounting plate 14 and abuts against the bottom surface of the horizontal part of the mounting plate 14 after rotating 90 degrees.

[0021] When the air station's sampling system is working, the collected air sample is first transported through the front pipe 1 and the inlet pipe 12 to the housing 4 between the first partition 5 of the filter 3 and the left side of the housing 4. It flows from top to bottom, passing through multiple first filters 8, and then through the gap between the first partition 5 and the bottom of the housing 4 into the housing 4 between the first partition 5 and the second partition 6. It flows from bottom to top, passing through multiple second filters 9, and then through the gap between the second partition 6 and the top of the housing 4 into the housing 4 between the second partition 6 and the third partition 7. It then flows from top to bottom again, passing through multiple third filters 10, and then through the gap between the third partition 7 and the bottom of the housing 4 into the housing 4 between the third partition 7 and the right side of the housing 4. It then passes through the folded filter element 11 from the outside to the inside, and after entering the inner side of the folded filter element 11, it is transported to the subsequent system through the outlet pipe 13 and the rear pipe 3. In this way, as the air sample flows through the filter 3, it first undergoes three stages of effective coarse filtration, with each stage involving multiple passes, through the cooperation of the first filter 8, the second filter 9, and the third filter 10, which have decreasing pore sizes. The inclined arrangement of each filter also maximizes the interception and filtration area within a limited space, thereby enhancing the coarse filtration effect. Then, the pleated filter element 11, which has a smaller pore size than the third filter 10, further effectively filtrations the air sample. The overall purification effect is better, ensuring the interception and filtration quality of the air sample and improving the cleanliness of the air sample sent to the analyzer, thus making it more conducive to ensuring the accuracy of the monitoring data.

[0022] When the filter 3 needs to be replaced after long-term use, the motor 18 can be run while the machine is stopped, rotating the fixing plate 19 by 90 degrees. This will align the fixing plate 19 with the through groove 15, thereby releasing the restriction on the horizontal part of the mounting plate 14. Then, pull out the air inlet pipe 12 and the air outlet pipe 13 to remove the old filter 3. Next, take the new filter 3 and insert it with the air inlet pipe 12 and the air outlet pipe 13 aligned with the tail end of the front pipe 1 and the head end of the rear pipe 2 until the mounting plate 14 abuts against the bottom of the support plate 16. This achieves the initial positioning and installation of the filter 3. At this time, the fixing plate 19 will be located on the bottom surface of the horizontal part of the mounting plate 14 after passing through the through groove 15, and the top surface of the fixing plate 19 will be flush with the bottom surface of the horizontal part of the mounting plate 14. Next, the motor 18 is operated, driving the fixing plate 19 to rotate 90 degrees, making the fixing plate 19 perpendicular to the through groove 15. This allows the fixing plate 19 to press against the bottom surface of the horizontal portion of the mounting plate 14, thus limiting the mounting plate 14 and further securing the filter 3. The installation is stable and does not affect subsequent use. This allows for flexible and convenient disassembly and replacement of the entire filter 3, making it more practical. The pleated filter element 11 can be made using existing technology. It features high retention rate, high flow rate, and low pressure difference, and due to its fine pleated structure and high filtration accuracy, it is typically used in precision filtration applications. The motor 18 can be a conventional stepper motor with a brake function to achieve the corresponding angle of rotation and position locking after rotation.

[0023] In this embodiment, the outer diameter of the intake pipe 12 is matched with the inner diameter of the tail end of the front pipe 1, and the outer diameter of the exhaust pipe 13 is matched with the inner diameter of the head end of the rear pipe 2, so as to ensure smooth connection between the filter 3 and the front pipe 1 and the rear pipe 2.

[0024] In this embodiment, a limiting plate 20 is fixedly sleeved on both the air inlet pipe 12 and the air outlet pipe 13. A flange 21 is fixedly provided on the bottom of the tail end of the front pipe 1 and the bottom of the head end of the rear pipe 2. The limiting plate 20 abuts against the bottom of the flange 21 to ensure smooth limiting installation between the filter 3 and the front pipe 1 and the rear pipe 2.

[0025] In this embodiment, a sealing gasket 22 is fixed on the bottom of the flange 21 to ensure the sealing of the connection between the filter 3 and the front pipe 1 and the rear pipe 2, and to prevent air leakage.

[0026] In this embodiment, the cross-sectional area of ​​the through groove 15 is larger than that of the fixing plate 19 to ensure that the fixing plate 19 can pass smoothly through the through groove 15 and cooperate to achieve the fixed installation of the filter 3.

[0027] In this embodiment, a protective cover 23 is provided on the outer side of the motor 18 to effectively shield and protect the motor 18 and ensure the service life of the motor 18.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An environmentally friendly air purification and filtration device, comprising a front pipeline, a rear pipeline, and a filter, characterized in that, The filter includes a housing, inside which a first partition, a second partition, and a third partition are spaced apart from left to right. The top ends of the first and third partitions are fixedly connected to the top wall of the housing, and a gap is left between their bottom ends and the bottom wall of the housing. The bottom end of the second partition is fixedly connected to the bottom wall of the housing, and a gap is left between its top end and the top wall of the housing. A plurality of first filter screens are fixedly connected between the first partition and the left side wall of the housing. A plurality of second filter screens are fixedly connected between the first and second partitions. A plurality of third filter screens are fixedly connected between the second and third partitions. A pleated filter element is vertically fixed inside the housing between the third partition and the right side wall of the housing. The pore sizes of the first, second, and third filter screens and the pleated filter element decrease sequentially, and the first, second, and third filter screens are all inclined and spaced vertically. An air inlet pipe is fixedly connected to the top of the box between the plate and the left side wall of the box. An air outlet pipe is fixedly connected to the top of the box corresponding to the inner side of the folded filter element. An inverted L-shaped mounting plate is fixedly installed on the top of the box between the air inlet pipe and the air outlet pipe. A through groove is opened on the horizontal part of the mounting plate along the front-back direction. The tail end of the front pipe and the head end of the rear pipe are both facing down and a support plate is fixedly connected between the two ends. A rotating shaft is vertically inserted through the support plate and rotates. The top end of the rotating shaft is fixedly connected to the output shaft of the motor fixedly mounted on the top of the support plate, and the bottom end is fixedly connected to a fixing plate. The air inlet pipe is inserted into the tail end of the front pipe, the air outlet pipe is inserted into the head end of the rear pipe, and the horizontal part of the mounting plate abuts against the bottom of the support plate. The fixing plate passes through the through groove to the bottom surface of the horizontal part of the mounting plate and abuts against the bottom surface of the horizontal part of the mounting plate after rotating 90 degrees.

2. The environmentally friendly air purification and filtration device according to claim 1, characterized in that, The outer diameter of the intake pipe is matched with the inner diameter of the tail end of the front pipe, and the outer diameter of the exhaust pipe is matched with the inner diameter of the head end of the rear pipe.

3. The environmentally friendly air purification and filtration device according to claim 1 or 2, characterized in that, Limiting discs are fixedly sleeved on both the air inlet pipe and the air outlet pipe. Flanges are fixedly provided at the bottom of the tail end of the front pipe and the bottom of the head end of the rear pipe. The limiting discs abut against the bottom of the flanges.

4. The environmentally friendly air purification and filtration device according to claim 3, characterized in that, A sealing gasket is fixed to the bottom of the flange.

5. The environmentally friendly air purification and filtration device according to claim 1, characterized in that, The cross-sectional area of ​​the through groove is larger than the cross-sectional area of ​​the fixed plate.

6. The environmentally friendly air purification and filtration device according to claim 1, characterized in that, The motor is equipped with a protective cover on its outer side.

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