PTFE air filter element anti-blocking detection device

Abstract

The utility model discloses a kind of PTFE air filter element anti-blocking detection equipment, including shell, the inside of the shell is equipped with detection box, the top of the detection box is communicated with air inlet pipeline by exhaust pipe.This utility model is by first pressure sensor, second pressure sensor, flow sensor, particulate matter counter and infrared thermal imaging instrument jointly constitute blocking detection module, can detect the blocking condition of PTFE air filter element from pressure, flow, particulate matter quantity and temperature distribution etc. Multiple dimensions, detection is more comprehensive, accurate, first pressure sensor and second pressure sensor can detect the pressure of exhaust pipeline and air inlet pipeline respectively, the change of pressure difference can reflect the blocking degree of filter element;Flow sensor can monitor air inlet flow in real time, when filter element is blocked, flow will change;Particulate matter counter can detect the particulate matter quantity in air before and after filtering, judge whether the filtering effect of filter element is reduced due to blocking.

Description

Technical Field

[0001] This utility model relates to the field of air filter element testing technology, specifically a PTFE air filter element anti-clogging testing device. Background Technology

[0002] PTFE air filter cartridges are widely used in air purification, industrial dust removal, and other fields due to their excellent corrosion resistance, high temperature resistance, and high filtration efficiency. However, during long-term use, the filter cartridges are prone to clogging due to particulate matter accumulation. This not only reduces filtration efficiency but may also affect the normal operation of related equipment. Therefore, it is crucial to conduct anti-clogging tests on PTFE air filter cartridges.

[0003] Most existing filter cartridge clogging detection devices are single-function and have relatively simple detection methods. They usually only determine whether there is clogging by measuring the pressure difference before and after filtration. This method is not very accurate and cannot fully reflect the clogging status of the filter cartridge. At the same time, existing detection devices cannot adjust the airflow according to the actual situation during the detection process, which affects the detection effect. Moreover, the treatment of exhaust gas after detection is not perfect and can easily cause environmental pollution. Utility Model Content

[0004] The purpose of this invention is to provide a PTFE air filter element anti-clogging detection device, which has the advantage of accurate anti-clogging detection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PTFE air filter element anti-clogging detection device, comprising a housing, an internal detection chamber, an air intake pipe connected to the top of the detection chamber via an exhaust pipe, the air intake end of the air intake pipe extending through to the outside of the housing, an exhaust pipe connected to the bottom of the detection chamber, the exhaust end of the exhaust pipe extending through to the right side of the housing, a first pressure sensor and a second pressure sensor respectively installed on one end surface of the exhaust pipe and the air intake pipe, a flow sensor installed on the left end surface of the air intake pipe, an airflow regulating valve installed on the right side of the flow sensor, a particulate counter and an infrared thermal imager respectively installed on the top of the internal cavity of the detection chamber, and a touch screen installed on the top of the right side of the housing; The first pressure sensor, the second pressure sensor, the flow sensor, the particulate counter, and the infrared thermal imager together form a blockage detection module. The output of the infrared thermal imager is electrically connected to a control module. The output of the control module is electrically connected to the input of the airflow regulating valve. The other output of the control module is electrically connected to a display terminal.

[0006] As a preferred embodiment, clamping plates are installed on both sides of the inner cavity of the testing box, and support springs are installed at both ends of the outer side of the clamping plates. The outer ends of the support springs are connected to the inner wall of the testing box, and a door is installed on the front of the testing box.

[0007] As a preferred embodiment, a guide plate is fixedly installed on the upper end of the outer side of the clamping plate, and the outer end of the guide plate extends through to the outside of the detection box.

[0008] As a preferred embodiment, the control module includes a microcontroller and a data processing module, wherein the data processing module is electrically connected to the blockage detection module.

[0009] As a preferred embodiment, the exhaust pipe is connected to an exhaust gas treatment box on the surface of the right end of the outer casing, and the exhaust gas treatment box is equipped with an activated carbon filter plate, a primary filter plate, an advanced filter plate and a photocatalytic purification plate from left to right.

[0010] As a preferred embodiment, limit baffles are installed on both sides of the bottom of the inner cavity of the outer shell, and the inner side of the limit baffles is engaged with the outside of the detection box.

[0011] As a preferred embodiment, a fastening plate is installed inside the exhaust gas treatment box and between the front ends of the activated carbon filter plate and the photocatalytic purification plate. Both sides of the front of the fastening plate are fitted with clamping springs, and a sealing cover is installed at the front end of the clamping springs. Insertion plates are installed longitudinally at both the upper and lower ends of the inner side of the sealing cover. A receiving seat adapted to the insertion plate is fixedly installed on the top of the front end of the exhaust gas treatment box. A sealed box door is rotatably installed on the left side of the front of the detection box.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a blockage detection module composed of a first pressure sensor, a second pressure sensor, a flow sensor, a particulate counter, and an infrared thermal imager. It can detect the blockage of the PTFE air filter element from multiple dimensions such as pressure, flow rate, particulate matter quantity, and temperature distribution, making the detection more comprehensive and accurate. The first and second pressure sensors can detect the pressure in the exhaust pipe and the intake pipe respectively, and the change in pressure difference can reflect the degree of blockage of the filter element. The flow sensor can monitor the intake air flow in real time, and the flow rate will change when the filter element is blocked. The particulate counter can detect the number of particulate matter in the air before and after filtration, and determine whether the filtration effect of the filter element has decreased due to blockage. The infrared thermal imager can detect the temperature distribution of the filter element, and the temperature of the blocked part is often abnormal due to poor airflow.

[0013] 2. This utility model connects to the exhaust gas treatment box via the surface of the right end of the exhaust pipe. The activated carbon filter plate and photocatalytic purification plate installed inside the box can perform dual purification treatment on the exhaust gas generated during the testing process. The activated carbon filter plate can adsorb odors and some harmful substances in the exhaust gas, while the photocatalytic purification plate can further decompose residual pollutants, effectively reducing the impact of exhaust gas emissions on the environment and making the equipment more compliant with environmental protection requirements. The limiting baffle inside the outer shell is snapped onto the outside of the testing box, providing stable limiting support for the testing box and preventing displacement or shaking of the testing box due to vibration during equipment operation. This ensures the stability of the working environment of each testing component inside the testing box, thereby ensuring the reliability of the testing data. Attached Figure Description

[0014] Figure 1 This is a first-person perspective structural perspective view of the present invention; Figure 2 This is a second-view perspective structural perspective view of the present invention; Figure 3 This is a front view of the structure of this utility model; Figure 4 This is a structural diagram of the internal structure of the exhaust gas treatment box of this utility model; Figure 5 This is a schematic diagram of the system of this utility model.

[0015] In the diagram: 1. Outer shell; 2. Detection box; 3. Inlet pipe; 4. Exhaust pipe; 5. First pressure sensor; 6. Flow sensor; 7. Particulate matter counter; 8. Infrared thermal imager; 9. Airflow regulating valve; 10. Touch screen; 11. Clamping plate; 12. Support spring; 13. Guide plate; 14. Limiting baffle; 15. Waste gas treatment box; 16. Activated carbon filter plate; 17. Primary filter plate; 18. Advanced filter plate; 19. Photocatalytic purification plate; 20. Fastening plate; 21. Anti-locking spring; 22. Sealing cover; 23. Insertion plate; 24. Receiving seat; 25. Sealed box door. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0018] Please see Figure 1 As shown, this utility model provides a PTFE air filter anti-clogging detection device, including a housing 1, a detection chamber 2 installed inside the housing 1, an air inlet pipe 3 connected to the top of the detection chamber 2 through an exhaust pipe, the air inlet end of the air inlet pipe 3 extending through to the outside of the housing 1, an exhaust pipe 4 connected to the bottom of the detection chamber 2, the air outlet end of the exhaust pipe 4 extending through to the right side of the housing 1, a first pressure sensor 5 and a second pressure sensor respectively installed on one end surface of the exhaust pipe 4 and the air inlet pipe 3, a flow sensor 6 installed on the left end surface of the air inlet pipe 3, an airflow regulating valve 9 installed on the right side of the flow sensor 6, a particulate counter 7 and an infrared thermal imager 8 respectively installed on the top of the inner cavity of the detection chamber 2, and a touch screen 10 installed on the top of the right side of the housing 1; The first pressure sensor 5, the second pressure sensor, the flow sensor 6, the particulate counter 7, and the infrared thermal imager 8 together form a blockage detection module. The output of the infrared thermal imager 8 is electrically connected to a control module. The output of the control module is electrically connected to the input of the airflow regulating valve 9. The other output of the control module is electrically connected to a display terminal.

[0019] This technical solution uses a blockage detection module composed of a first pressure sensor 5, a second pressure sensor, a flow sensor 6, a particulate counter 7, and an infrared thermal imager 8. This module can detect the blockage of the PTFE air filter element from multiple dimensions, including pressure, flow rate, particulate matter quantity, and temperature distribution, providing a more comprehensive and accurate detection. The first and second pressure sensors detect the pressure in the exhaust pipe 4 and the intake pipe 3, respectively, and the change in pressure difference reflects the degree of blockage in the filter element. The flow sensor 6 monitors the intake air flow in real time; the flow rate changes when the filter element is blocked. The particulate counter 7 detects the number of particulate matter in the air before and after filtration, determining whether the filter element's filtration effect has decreased due to blockage. The infrared thermal imager 8 detects the temperature distribution of the filter element; blocked areas often exhibit abnormal temperatures due to poor airflow. Example

[0020] Based on Embodiment 1, this utility model is as follows: Figure 2As shown, clamping plates 11 are installed on both sides of the inner cavity of the test box 2. Supporting springs 12 are installed at both ends of the outer side of the clamping plates 11. The outer ends of the supporting springs 12 are connected to the inner wall of the test box 2. A door is also installed on the front of the test box 2.

[0021] Adopting such Figure 1 The technical solution shown features clamping plates 11 on both sides of the inner cavity of the testing chamber 2, which, together with the supporting springs 12 at both ends of their outer sides, can flexibly adapt to PTFE air filter elements of different sizes by means of the elastic force of the springs, achieving stable clamping and effectively preventing the filter elements from shaking during the testing process, thus affecting the accuracy of the test data. At the same time, the door installed on the front of the testing chamber 2 provides a convenient passage for taking out and putting in the filter elements, greatly simplifying the preparation work before testing and the finishing operation after testing, taking into account the versatility, stability and ease of operation of clamping.

[0022] Secondly, in the technical solution, a guide plate 13 is fixedly installed on the upper end of the outer side of the clamping plate 11, and the outer end of the guide plate 13 extends through to the outside of the detection box 2; the control module includes a microcontroller and a data processing module, and the data processing module is electrically connected to the blockage detection module.

[0023] Its adoption is as follows Figure 1 The technical solution shown has a guide plate 13 fixedly installed on the upper outer side of the clamping plate 11 and extending through to the outside of the test box 2. This guide plate 13 provides precise guidance for the movement of the clamping plate 11, ensuring that it maintains a stable trajectory when clamping the filter element under the action of the support spring 12. This avoids uneven clamping force due to deviation, further improving the stability and reliability of the filter element clamping and ensuring the smooth progress of the test process. The control module includes a microcontroller and a data processing module. The data processing module is electrically connected to the blockage detection module and can efficiently receive and process various detection data collected by multiple components such as the first pressure sensor 5 and the second pressure sensor. After analysis and calculation, the results are transmitted to the microcontroller, which then precisely controls the actions of components such as the airflow regulating valve 9 to achieve intelligent control of the detection process. At the same time, it is easy to clearly present the processed key information on the display terminal, allowing staff to intuitively grasp the blockage status of the filter element, which significantly improves the automation and intelligence level of the equipment. Example

[0024] This utility model is as follows Figures 1-5As shown, the exhaust pipe 4 is connected to the exhaust gas treatment box 15 on the right side of the outer casing 1. The exhaust gas treatment box 15 is equipped with an activated carbon filter plate 16, a primary filter plate 17, an advanced filter plate 18 and a photocatalytic purification plate 19 from left to right inside. Limiting baffles 14 are installed on both sides of the bottom of the inner cavity of the outer casing 1. The inner side of the limiting baffles 14 is snapped onto the outside of the detection box 2. A fastening plate 20 is installed inside the exhaust gas treatment box 15 and between the front ends of the activated carbon filter plate 16 and the photocatalytic purification plate 19. A retaining spring 21 is installed on both sides of the front of the fastening plate 20. A sealing cover 22 is installed at the front end of the retaining spring 21. Insertion plates 23 are installed longitudinally at the upper and lower ends of the inner side of the sealing cover 22. A receiving seat 24 adapted to the insertion plate 23 is fixedly installed on the top of the front end of the exhaust gas treatment box 15. A sealing box door 25 is rotatably installed on the left side of the front of the detection box 2.

[0025] Using the above technical solution, the surface of the right end of the exhaust pipe 4 is connected to the exhaust gas treatment box 15, which contains an activated carbon filter plate 16, a primary filter plate 17, a high-grade filter plate 18, and a photocatalytic purification plate 19. These components can perform multiple purification treatments on the exhaust gas and particulate matter generated during the detection process. The activated carbon filter plate 16 can adsorb odors and some harmful substances in the exhaust gas. The primary filter plate 17 and the high-grade filter plate 18 can filter residual particulate matter in the gas to avoid causing other pollution. The photocatalytic purification plate 19 can further decompose residual pollutants, effectively reducing the environmental impact of exhaust gas emissions and making the equipment more compliant with environmental protection requirements. The limiting baffle 14 inside the outer shell 1 is internally engaged with the outside of the detection box 2. It can provide a stable limiting support for the test box 2, preventing the test box 2 from shifting or shaking due to vibration during equipment operation, ensuring the stability of the working environment of each test component in the test box 2, thereby ensuring the reliability of the test data. At the same time, the clamping spring 21 inside the sealing cover 22 can tighten the outside of the fastening plate 20 and firmly attach the fastening plate 20 to the ends of multiple filter plates. Moreover, the plug plate 23 can be inserted longitudinally into the interior of the receiving seat 24, and the plug plate is installed inside to complete the fixation of the sealing cover 22, so as to protect and reinforce the fastening plate 20 installed between the front end of the activated carbon filter plate 16 and the photocatalytic purification plate 19, and can also be quickly removed later for cleaning of its surface.

[0026] The working principle of this utility model is as follows: First, the PTFE air filter element to be tested is placed into the test chamber 2. Under the elastic action of the support spring 12, the clamping plates 11 on both sides of the inner cavity of the test chamber 2 firmly clamp the filter element. Then, outside air enters the test chamber 2 through the air intake pipe 3. The airflow regulating valve 9 can adjust the air intake flow under the control of the control module. During the process of air flowing through the filter element, the blockage detection module starts to work. The first pressure sensor 5 and the second pressure sensor respectively detect the pressure in the exhaust pipe 4 and the air intake pipe 3 in real time. The flow sensor 6 monitors the air intake flow. The particulate matter counter 7 detects the number of particulate matter in the air before and after filtration. The infrared thermal imager 8 detects the temperature distribution of the filter element. The detected data is transmitted to the data processing module in the control module. The data processing module analyzes and processes the data, and comprehensively judges the clogging status of the filter element by considering factors such as pressure difference changes, flow rate changes, particulate matter quantity changes, and abnormal temperature distribution. Based on the processing results, the microcontroller controls the airflow regulating valve 9 to adjust the intake flow to simulate different working conditions, and sends the relevant detection data to the display terminal for staff to visually view the clogging status of the filter element. The detected gas is discharged through the exhaust pipe 4. During the discharge process, the activated carbon filter plate 16, primary filter plate 17, advanced filter plate 18, and photocatalytic purification plate 19 in the exhaust gas treatment box 15 will perform multi-stage purification treatment on the exhaust gas. After releasing the limit on the upper and lower plug plates 23, the sealing cover 22 along with the fastening plate 20 can be removed from the exhaust gas treatment box 15, and the activated carbon filter plate 16, primary filter plate 17, advanced filter plate 18, and photocatalytic purification plate 19 can be disassembled, cleaned, or replaced.

[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A PTFE air filter element anti-clogging detection device, comprising a housing (1), characterized in that: The detection box (2) is installed inside the outer shell (1). The top of the detection box (2) is connected to the air intake pipe (3) through the exhaust pipe. The air intake end of the air intake pipe (3) extends through to the outside of the outer shell (1). The bottom of the detection box (2) is connected to the exhaust pipe (4). The air outlet end of the exhaust pipe (4) extends through to the right side of the outer shell (1). A first pressure sensor (5) and a second pressure sensor are respectively installed on one end surface of the exhaust pipe (4) and the air intake pipe (3). A flow sensor (6) is installed on the surface of the left end of the air intake pipe (3). An airflow regulating valve (9) is installed on the right side of the flow sensor (6). A particle counter (7) and an infrared thermal imager (8) are respectively installed on the top of the inner cavity of the detection box (2). A touch screen (10) is installed on the top of the right side of the outer shell (1). The first pressure sensor (5), the second pressure sensor, the flow sensor (6), the particulate counter (7), and the infrared thermal imager (8) together form a blockage detection module. The output end of the infrared thermal imager (8) is electrically connected to a control module. The output end of the control module is electrically connected to the input end of the airflow regulating valve (9). The other output end of the control module is electrically connected to a display terminal.

2. The PTFE air filter element anti-clogging testing device according to claim 1, characterized in that: Clamping plates (11) are installed on both sides of the inner cavity of the test box (2). Supporting springs (12) are installed at both ends of the outer side of the clamping plates (11). The outer ends of the supporting springs (12) are connected to the inner wall of the test box (2). A box door is also installed on the front of the test box (2).

3. The PTFE air filter element anti-clogging testing device according to claim 2, characterized in that: A guide plate (13) is fixedly installed on the upper end of the outer side of the clamping plate (11), and the outer end of the guide plate (13) extends through to the outside of the detection box (2).

4. The PTFE air filter element anti-clogging testing device according to claim 1, characterized in that: The control module includes a microcontroller and a data processing module, and the data processing module is electrically connected to the blockage detection module.

5. The PTFE air filter element anti-clogging testing device according to claim 1, characterized in that: The exhaust pipe (4) is connected to the exhaust gas treatment box (15) on the right side of the outer shell (1). The exhaust gas treatment box (15) is equipped with an activated carbon filter plate (16), a primary filter plate (17), an advanced filter plate (18) and a photocatalytic purification plate (19) from left to right.

6. The PTFE air filter element anti-clogging testing device according to claim 1, characterized in that: Limiting baffles (14) are installed on both sides of the bottom of the inner cavity of the outer shell (1), and the inner side of the limiting baffles (14) is engaged with the outside of the detection box (2).

7. The PTFE air filter element anti-clogging testing device according to claim 5, characterized in that: Inside the waste gas treatment box (15) and between the front ends of the activated carbon filter plate (16) and the photocatalytic purification plate (19), a fastening plate (20) is installed. Both sides of the front of the fastening plate (20) are fitted with a retaining spring (21). A sealing cover (22) is installed at the front end of the retaining spring (21). Both the upper and lower ends of the inner side of the sealing cover (22) are longitudinally fitted with plug-in plates (23). A receiving seat (24) that matches the plug-in plate (23) is fixedly installed on the top of the front end of the waste gas treatment box (15). A sealing box door (25) is rotatably installed on the left side of the front of the detection box (2).

Images