A filtration performance test bench based on air filter element

Abstract

The present invention relates to the technical field of filter element detection, and discloses a filtration performance detection platform based on an air filter element, comprising a detection frame, an air filter element placement mechanism, a wind speed sensor detection and adjustment mechanism, a PM2.5 sensor detection and adjustment mechanism, and an air suction mechanism. An air filter element body is arranged above the interior of the detection frame, and the air filter element body is clamped and placed above the air filter element placement mechanism. The air filter element placement mechanism comprises a table support, and the number of the table support is four and is located at the bottom corner of the air filter element body; the wind speed sensor detection and adjustment mechanism is arranged below the air filter element placement mechanism, the PM2.5 sensor detection and adjustment mechanism is arranged at the front and rear positions of the detection frame, and the air suction mechanism is arranged at the inner bottom of the detection frame. The filtration performance detection platform based on the air filter element is suitable for placing air filter element bodies of different models, is convenient for automatic and real-time detection of the wind speed and PM2.5 index below the filter element, and efficiently detects whether the filtration performance of the air filter element body is qualified.

Description

Technical Field

[0001] The invention relates to the technical field of filter element detection, in particular to a filtering performance detection platform based on an air filter element. Background Art

[0002] Air filter refers to air filtering device, which is generally used in clean workshops, clean factories, laboratories and clean rooms, or for dust prevention of electronic mechanical communication equipment, etc. It can also be used in general household air purifiers. The filtering capacity of the filter element in the filter is generally determined by the performance of the filter paper. There are still certain differences in the production environment and product structure during the production process, so there is a certain gap between its actual filtering performance and the filtering performance of the filter paper itself, which leads to the subsequent replacement. It is unclear whether the filter element is overloaded or supersaturated, or whether the filter element can filter out particles of the corresponding size.

[0003] At present, most of the air filter testing stations are huge laboratory instruments, which are mostly used by some manufacturers in their own laboratories. It is difficult to apply to the positioning detection of air filters of different models, and it is not convenient to test and analyze the filtration performance of air filters. Therefore, it is necessary to design a corresponding technical solution to solve this problem. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a filtration performance testing station based on an air filter element, which solves the technical problems of being difficult to locate and test air filter elements of different models and inconvenient to perform qualified testing and analysis on the filtration performance of the air filter element.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the present invention is implemented through the following technical solutions: a filtration performance test platform based on an air filter element, comprising a test frame, an air filter element placement mechanism, a wind speed sensor detection and adjustment mechanism, a PM2.5 sensor detection and adjustment mechanism and an air suction mechanism, an air filter element body is arranged above the interior of the test frame, the air filter element body is clamped on the top of the air filter element placement mechanism, the air filter element placement mechanism comprises a table bracket, the number of the table brackets is four and they are located at the bottom corners of the air filter element body;

[0008] The wind speed sensor detection and adjustment mechanism is arranged below the air filter element placement mechanism, and the wind speed sensor detection and adjustment mechanism is movably connected to both sides of the detection frame near the bottom;

[0009] The PM2.5 sensor detection adjustment mechanism is arranged at the front and rear positions of the detection frame;

[0010] The air suction mechanism is arranged at the inner bottom of the detection frame.

[0011] Preferably, a control device is installed at the front right end of the detection frame, and the control device is electrically connected to the wind speed sensor detection and adjustment mechanism, the PM2.5 sensor detection and adjustment mechanism and the air suction mechanism through wires. Support legs are welded at the bottom corners of the detection frame, and observation windows are opened near the bottom of the front and rear ends of the detection frame. The set control device facilitates automatic control of the start, stop and adjustment of the wind speed sensor detection and adjustment mechanism, the PM2.5 sensor detection and adjustment mechanism and the air suction mechanism. The support legs are used to stably support the detection frame as a whole, and the observation window is used to observe the detection process.

[0012] Preferably, a hydraulic cylinder 1 is fixedly provided in the transverse space of the table brackets, a hydraulic rod 1 is connected between the hydraulic cylinders 1, a hydraulic cylinder 2 is fixedly provided in the longitudinal space of the table brackets, a hydraulic rod 2 is connected between the hydraulic cylinders 2, and a handle rod is fixedly provided on the top of the table brackets; the transverse spacing between the table brackets at both ends is conveniently adjusted by connecting hydraulic cylinder 1 to hydraulic rod 1, and the longitudinal spacing between the table brackets at both ends is conveniently adjusted by connecting hydraulic cylinder 2 to hydraulic rod 2; the handle rod is used for hand-held operation to adjust the table bracket, which has a simple structure, low cost and is easy to use.

[0013] Preferably, limit grooves are provided on both sides near the upper part of the detection frame, and the limit grooves are internally slidably connected to limit plates, and the inner end of the limit plate is fixedly provided with a slide plate, and the inner end of the slide plate is fixedly provided with a hydraulic cylinder three, and the inner end of the hydraulic cylinder three is connected with a hydraulic rod three, and the inner end of the hydraulic rod three is welded with a mounting plate, and the mounting plate is connected to the outer wall of the table bracket by bolts; the limit grooves are provided for the embedded limit plates to slide longitudinally, and the slide plate slides on the inner side of the limit grooves, and the hydraulic cylinder three is connected with the hydraulic rod three to support the overall hydraulic adjustment position of the air filter placement mechanism, and the mounting plate is used to facilitate the disassembly and assembly of the table bracket.

[0014] Preferably, adjustment grooves 1 are provided at both ends of the top of the detection frame, and the adjustment grooves 1 are corresponding structures to the table bracket. A support plate is fixed inside the adjustment groove 1, and an adjustment screw is threadedly connected inside the support plate, and the adjustment screw is threadedly connected to the table bracket, and a handwheel is welded at the outer end of the adjustment screw; the adjustment groove 1 is used to operate the adjustment screw, the support plate is used to support the adjustment screw to adjust the position by rotating the thread, and the handwheel is used for hand-held rotation operation, which is easy to use.

[0015] Preferably, the wind speed sensor detection and adjustment mechanism includes a wind speed sensor, a cross bar, a screw, a base, a drive motor and a fixing frame, mounting grooves are provided at the lower sides of the detection frame, and an adjustment groove 2 is provided at the top of the mounting groove, and the width of the adjustment groove 2 is smaller than the width of the mounting groove; an end plate is fixedly provided at the inner top of the adjustment groove 2, bearings are fixedly provided at the bottom of the end plate and the top of the base, the screw is rotatably connected between the bearings, the drive motor is installed at the bottom of the base, and the output end of the drive motor is connected to the bottom of the screw, and the fixing frame is welded to the base. The outer wall and the outer wall of the detection frame, both ends of the cross bar are welded with sleeves, the sleeve is connected to the outside of the screw by a thread, and the wind speed sensor is fixed in the middle of the cross bar; the installation groove is used to place the base and the drive motor and other components, the adjustment groove is used to place the end plate and the screw and other components, the end plate and the base are used to fix the bearing, the bearing is used to support the rotation of the screw, the drive motor is used to drive and control the rotation of the screw, the fixing frame is used to fix and support the wind speed sensor detection and adjustment mechanism as a whole, the sleeve is used to limit the height of the external lifting and lowering of the screw, and the cross bar is used to support the wind speed sensor to detect the real-time wind speed.

[0016] Preferably, the PM2.5 sensor detection and adjustment mechanism includes a PM2.5 sensor, an electric push rod device and a limit cylinder, the PM2.5 sensors are all arranged at the inner front and rear sides of the detection frame, the outer end of the PM2.5 sensor is fixed with a push rod, the push rod is connected to the detection frame, the inner end of the electric push rod device is fixed with a positioning plate, the top and bottom of the positioning plate are welded with brackets, the bracket is welded to the outer wall of the detection frame, the outer end of the push rod is connected to the output end of the electric push rod device, the limit cylinder is fixed to the front and rear ends of the detection frame, and the push rod is connected to the inside of the limit cylinder; the PM2.5 sensor is used to detect the PM2.5 index below the air filter body, the electric push rod device and the push rod are used to automatically control the position of the PM2.5 sensor to facilitate large-area detection and improve detection accuracy, the bracket is used to fix and support the electric push rod device, and the limit cylinder is used to safely limit the telescopic movement of the push rod.

[0017] Preferably, the air suction mechanism includes an air duct, and support rods are welded and distributed on the outer side wall of the air duct, and the support rods are fixed at the inner corners of the detection frame in an X-shaped structure; the support rods in the X-shaped structure are used to support the air duct with high strength, and the structure is simple, durable, strong and stable.

[0018] Preferably, a suction port with a flared structure is fixedly provided on the top of the suction mechanism, a motor is provided at the lower interior of the suction mechanism, a fixing rod is fixedly distributed between the outer wall of the motor and the inner wall of the wind tube, the output end of the motor is connected to a driving shaft, wind blades are fixedly distributed on the upper outer wall of the driving shaft, and a power output port is electrically connected to the outer side of the suction mechanism near the front end; the suction port with a flared structure can efficiently suck air, so that the detection effect is better, the motor and the driving shaft are used to drive and control multiple wind blades to rotate at high speed to control the suction, the fixing rod is used to stably support the motor, and the power output port is used to connect the power cord to the control device.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention has the following beneficial effects: through the air filter placement mechanism connected at the upper part of the detection frame, it is convenient to manually adjust the spacing between the four groups of table brackets horizontally or vertically, which is suitable for the placement of air filter bodies of different models; through the wind speed sensor detection and adjustment mechanism set below the air filter placement mechanism and the PM2.5 sensor detection and adjustment mechanism set at the front and rear positions of the detection frame, it is convenient to automatically detect the wind speed and PM2.5 index below the filter in real time, and different positions can be automatically adjusted to improve the detection accuracy; through the suction mechanism set at the bottom inside the detection frame, it is convenient for the air filter body to simulate the inhaled air, efficiently detect whether the filtering performance of the air filter body is qualified, and effectively analyze the air permeability of the air filter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall front outer end structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal overall structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the air filter element placement mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the wind speed sensor detection and adjustment mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the PM2.5 sensor detection and adjustment mechanism of the present invention;

[0026] Figure 6 It is a schematic diagram of the air suction mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the internal cross-sectional structure of the air duct of the present invention.

[0028] In the figure, 1, detection frame; 10, air filter body; 11, adjustment slot 1; 111, limit slot; 12, control device; 13, observation window; 14, support leg; 15, installation slot; 151, adjustment slot 2; 2, air filter placement mechanism; 21, table bracket; 22, hydraulic cylinder 1; 221, hydraulic rod 1; 23, hydraulic cylinder 2; 231, hydraulic rod 2; 24, handle bar; 25, adjustment screw; 251, support plate; 252, hand wheel; 26, hydraulic cylinder 3; 261, hydraulic rod 3; 262, installation plate; 263, slide plate; 264, limit plate; 3, wind speed sensor detection adjustment Section mechanism; 31, wind speed sensor; 32, cross bar; 321, sleeve; 33, screw; 331, base; 332, drive motor; 333, bearing; 334, fixed frame; 335, end plate; 4, PM2.5 sensor detection and adjustment mechanism; 41, PM2.5 sensor; 42, electric push rod device; 421, positioning plate; 422, bracket; 43, push rod; 431, limit cylinder; 5, suction mechanism; 51, wind tube; 511, suction port; 52, motor; 521, drive shaft; 522, wind blade; 523, fixed rod; 53, support rod; 54, power output port. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 The embodiment of the present invention provides a technical solution: a filtering performance test platform based on an air filter element, comprising a test frame 1, an air filter element placement mechanism 2, a wind speed sensor detection and adjustment mechanism 3, a PM2.5 sensor detection and adjustment mechanism 4 and an air suction mechanism 5, an air filter element body 10 is arranged above the inner part of the test frame 1, and the air filter element body 10 is clamped on the upper part of the air filter element placement mechanism 2, and the air filter element placement mechanism 2 includes a table bracket 21, and the number of the table bracket 21 is four and is located at the bottom corner of the air filter element body 10;

[0031] The wind speed sensor detection and adjustment mechanism 3 is arranged below the air filter element placement mechanism 2, and the wind speed sensor detection and adjustment mechanism 3 is movably connected to both sides of the detection frame 1 near the bottom;

[0032] The PM2.5 sensor detection adjustment mechanism 4 is arranged at the front and rear positions of the detection frame 1;

[0033] The air suction mechanism 5 is disposed at the inner bottom of the detection frame 1 .

[0034] Through the air filter placement mechanism 2 connected to the upper part of the detection frame 1, it is convenient to manually adjust the distance between the four groups of table brackets 21 horizontally or vertically, which is suitable for the placement of air filter bodies 10 of different models. Through the wind speed sensor detection and adjustment mechanism 3 set below the air filter placement mechanism 2 and the PM2.5 sensor detection and adjustment mechanism 4 set at the front and rear positions of the detection frame 1, it is convenient to automatically detect the wind speed and PM2.5 index below the filter in real time, and different positions can be automatically adjusted to improve the detection accuracy. Through the suction mechanism 5 set at the bottom inside the detection frame 1, it is convenient for the air filter body 10 to simulate the inhaled air, efficiently detect whether the filtering performance of the air filter body 10 is qualified, and effectively analyze the air permeability of the air filter body 10.

[0035] As a further improvement, a control device 12 is installed at the front right end of the detection frame 1, and the control device 12 is electrically connected to the wind speed sensor detection adjustment mechanism 3, the PM2.5 sensor detection adjustment mechanism 4 and the air suction mechanism 5 through wires. Support legs 14 are welded at the bottom corners of the detection frame 1, and observation windows 13 are opened near the bottom of the front and rear ends of the detection frame 1;

[0036] The control device 12 is provided to facilitate automatic control of the start, stop and adjustment of the wind speed sensor detection and adjustment mechanism 3, the PM2.5 sensor detection and adjustment mechanism 4 and the air suction mechanism 5. The support legs 14 are used to stably support the detection frame 1 as a whole, and the observation window 13 is used to observe the detection process.

[0037] Further improved, a hydraulic cylinder 1 22 is fixedly provided between the horizontal spaces of the table support 21, a hydraulic rod 1 221 is connected between the hydraulic cylinders 1 22, a hydraulic cylinder 2 23 is fixedly provided between the longitudinal spaces of the table support 21, a hydraulic rod 231 is connected between the hydraulic cylinders 23, and a handle rod 24 is fixedly provided on the top of the table support 21;

[0038] By setting up hydraulic cylinder 1 22 connected to hydraulic rod 1 221, it is convenient to adjust the lateral distance between the table brackets 21 at both ends. Hydraulic cylinder 23 is connected to hydraulic rod 2 231 to facilitate the adjustment of the longitudinal distance between the table brackets 21 at both ends. The handle rod 24 is used for hand-held operation to adjust the table bracket 21. It has a simple structure, low cost and is easy to use.

[0039] As a further improvement, limiting grooves 111 are provided on both sides of the detection frame 1 near the upper part, and the limiting grooves 111 are slidably connected to the limiting plates 264 inside, and the inner end of the limiting plates 264 is fixedly provided with a slide plate 263, and the inner end of the slide plate 263 is fixedly provided with a hydraulic cylinder 3 26, and the inner end of the hydraulic cylinder 3 26 is connected to a hydraulic rod 3 261, and the inner end of the hydraulic rod 3 261 is welded with a mounting plate 262, and the mounting plate 262 is connected to the outer wall of the table bracket 21 by bolts;

[0040] The limit groove 111 is set to allow the embedded limit plate 264 to slide longitudinally, and the slide plate 263 slides on the inner side of the limit groove 111. The hydraulic cylinder three 26 is connected to the hydraulic rod three 261 to support the overall hydraulic adjustment position of the air filter placement mechanism 2, and the mounting plate 262 is used to facilitate the disassembly and assembly of the table bracket 21.

[0041] As a further improvement, the top two ends of the detection frame 1 are provided with adjustment grooves 11, the adjustment grooves 11 and the table bracket 21 are corresponding structures, a support plate 251 is fixed inside the adjustment groove 11, an adjustment screw 25 is connected to the inside of the support plate 251 through a thread, and the adjustment screw 25 is connected to the table bracket 21 through a thread, and a hand wheel 252 is welded to the outer end of the adjustment screw 25;

[0042] The adjusting slot 11 is provided for operating the adjusting screw 25, the support plate 251 is used to support the adjusting screw 25 to adjust the position by rotating the thread, and the hand wheel 252 is used for hand-held rotation operation, which is easy to use.

[0043] Further improved, the wind speed sensor detection and adjustment mechanism 3 includes a wind speed sensor 31, a crossbar 32, a screw 33, a base 331, a drive motor 332 and a fixing frame 334, and mounting grooves 15 are provided at the bottom of both sides of the detection frame 1, and an adjustment groove 2 151 is provided at the top of the mounting groove 15, and the width of the adjustment groove 2 151 is smaller than the width of the mounting groove 15;

[0044] An end plate 335 is fixedly provided at the inner top of the second adjustment slot 151, and bearings 333 are fixedly provided at the bottom of the end plate 335 and the top of the base 331, and the screw 33 is rotatably connected between the bearings 333, and the drive motor 332 is installed at the bottom of the base 331, and the output end of the drive motor 332 is connected to the bottom of the screw 33, and the fixing frame 334 is welded to the outer wall of the base 331 and the outer wall of the detection frame 1, and sleeves 321 are welded at both ends of the cross bar 32, and the sleeve 321 is connected to the outside of the screw 33 by threads, and the wind speed sensor 31 is fixedly provided in the middle of the cross bar 32;

[0045] The installation groove 15 is used to place components such as the base 331 and the drive motor 332, the adjustment groove 151 is used to place components such as the end plate 335 and the screw 33, the end plate 335 and the base 331 are used to fix the bearing 333, the bearing 333 is used to support the rotation of the screw 33, the drive motor 332 is used to drive the control screw 33 to rotate, the fixing frame 334 is used to fix and support the wind speed sensor detection and adjustment mechanism 3 as a whole, the sleeve 321 is used to limit the external lifting and height adjustment of the screw 33, and the cross bar 32 is used to support the wind speed sensor 31 to detect the real-time wind speed.

[0046] Further improved, the PM2.5 sensor detection and adjustment mechanism 4 includes a PM2.5 sensor 41, an electric push rod device 42 and a limit cylinder 431, the PM2.5 sensor 41 is arranged at the front and rear of the inner side of the detection frame 1, the outer end of the PM2.5 sensor 41 is fixed with a push rod 43, the push rod 43 is connected to the detection frame 1, the inner end of the electric push rod device 42 is fixed with a positioning plate 421, the top and bottom of the positioning plate 421 are welded with a bracket 422, the bracket 422 is welded to the outer wall of the detection frame 1, the outer end of the push rod 43 is connected to the output end of the electric push rod device 42, the limit cylinder 431 is fixed to the front and rear ends of the detection frame 1, and the push rod 43 is connected to the inside of the limit cylinder 431;

[0047] The PM2.5 sensor 41 is used to detect the PM2.5 index below the air filter body 10. The electric push rod device 42 and the push rod 43 are used to automatically control the position of the PM2.5 sensor 41 to facilitate large-area detection and improve detection accuracy. The bracket 422 is used to fix and support the electric push rod device 42, and the limit cylinder 431 is used to safely limit the telescopic movement of the push rod 43.

[0048] As a further improvement, the air suction mechanism 5 includes a wind tube 51, and a support rod 53 is welded and distributed on the outer wall of the wind tube 51. The support rod 53 is fixed at the inner corner of the detection frame 1 in an X-shaped structure;

[0049] The X-shaped support rod 53 is used to support the air duct 51 with high strength, and has a simple structure, is durable, and is firm and stable.

[0050] Specifically, the top of the suction mechanism 5 is fixedly provided with a suction port 511 with a flared structure, a motor 52 is provided at the lower part of the suction mechanism 5, a fixing rod 523 is fixedly distributed between the outer wall of the motor 52 and the inner wall of the wind tube 51, the output end of the motor 52 is connected to a driving shaft 521, and a wind blade 522 is fixedly distributed on the upper outer wall of the driving shaft 521, and the outer side of the suction mechanism 5 is electrically connected to a power output port 54 near the front end;

[0051] The air suction port 511 with a flared structure can efficiently suck air, so that the detection effect is better. The motor 52 and the drive shaft 521 are used to drive and control multiple wind blades 522 to rotate at high speed to control the air suction. The fixing rod 523 is used to stably support the motor 52, and the power output port 54 is used to connect the power cord to the control device 12.

[0052] Example 1: Hydraulic cylinders 1 22 are fixedly provided in the horizontal space of the table support 21, and hydraulic rods 1 221 are connected between the hydraulic cylinders 1 22, and hydraulic cylinders 23 23 are fixedly provided in the longitudinal space of the table support 21, and hydraulic rods 231 are connected between the hydraulic cylinders 23, and handle rods 24 are fixedly provided on the top of the table support 21; limiting grooves 111 are provided near the top of both sides of the detection frame 1, and the limiting grooves 111 are internally slidably connected to the limiting plates 264, and the inner side ends of the limiting plates 264 are fixedly provided with slide plates 263, and the inner side ends of the slide plates 263 are fixedly provided with hydraulic cylinders 3 26, The inner end of the hydraulic cylinder three 26 is connected to the hydraulic rod three 261, and the inner end of the hydraulic rod three 261 is welded with a mounting plate 262, and the mounting plate 262 is connected to the outer wall of the table bracket 21 by bolts; adjustment grooves 11 are provided at both ends of the top of the detection frame 1, and the adjustment grooves 11 and the table bracket 21 are corresponding structures, and a support plate 251 is fixed inside the adjustment groove 11, and the inside of the support plate 251 is connected with an adjusting screw 25 through threads, and the adjusting screw 25 is connected to the table bracket 21 through threads, and the outer end of the adjusting screw 25 is welded with a handwheel 252.

[0053] Example 2: The wind speed sensor detection and adjustment mechanism 3 includes a wind speed sensor 31, a cross bar 32, a screw rod 33, a base 331, a drive motor 332 and a fixing frame 334. Mounting grooves 15 are provided at the lower sides of the detection frame 1. An adjustment groove 2 151 is provided at the top of the mounting groove 15. The width of the adjustment groove 2 151 is smaller than the width of the mounting groove 15. An end plate 335 is fixedly provided at the inner top of the adjustment groove 2 151. Bearings 333 are fixedly provided at the bottom of the end plate 335 and the top of the base 331. The screw rod 33 is rotatably connected between the bearings 333. The drive motor 332 is installed at the bottom of the base 331, and the output end of the drive motor 332 is connected to the bottom of the screw rod 33. The fixing frame 334 is welded to the outer wall of the base 331 and the outer wall of the detection frame 1. Sleeves 321 are welded at both ends of the cross bar 32. The sleeve 321 is connected to the outside of the screw rod 33 by threads. The wind speed sensor 31 is fixedly provided in the middle of the cross bar 32.

[0054] Example three: The PM2.5 sensor detection and adjustment mechanism 4 includes a PM2.5 sensor 41, an electric push rod device 42 and a limit cylinder 431. The PM2.5 sensors 41 are all arranged at the front and back of the inner side of the detection frame 1. The outer end of the PM2.5 sensor 41 is fixed with a push rod 43, and the push rod 43 is connected to the detection frame 1. The inner end of the electric push rod device 42 is fixed with a positioning plate 421. The top and bottom of the positioning plate 421 are welded with brackets 422, and the bracket 422 is welded to the outer wall of the detection frame 1. The outer end of the push rod 43 is connected to the output end of the electric push rod device 42, the limit cylinder 431 is fixed to the front and back ends of the detection frame 1, and the push rod 43 is connected to the inside of the limit cylinder 431.

[0055] Example 4: The air suction mechanism 5 includes a wind tube 51, and a support rod 53 is welded on the outer wall of the wind tube 51. The support rod 53 is fixed at the inner corner of the detection frame 1 in an X-shaped structure; a suction port 511 in a flared structure is fixedly provided on the top of the air suction mechanism 5, and a motor 52 is provided at the lower part of the interior of the air suction mechanism 5, and a fixing rod 523 is fixedly distributed between the outer wall of the motor 52 and the inner wall of the wind tube 51, and the output end of the motor 52 is connected to a driving shaft 521, and a wind blade 522 is fixedly distributed on the upper outer wall of the driving shaft 521. The outer side of the air suction mechanism 5 is electrically connected to a power output port 54 near the front end.

[0056] Working principle: first, place the air filter element body 10 on the table bracket 21 of the air filter element placement mechanism 2, hold the handle bar 24 above the table bracket 21 to adjust it horizontally or vertically, and the table bracket 21 is adjusted by the horizontal hydraulic cylinder 1 22 and hydraulic rod 1 221 and the longitudinal hydraulic cylinder 2 23 and hydraulic rod 2 231, and the hydraulic cylinder 3 26 and hydraulic rod 3 261 are used to assist in the adjustment of the telescopic support, and the slide plate 263 and the limit plate 264 are located in the limit groove 111 to slide and assist in the adjustment, so that the table bracket 21 is tightly clamped to hold the air filter element body 10, and then hold the hand wheel 252 to rotate the adjusting screw 25 inward to adjust, thereby locking the air filter element body 10;

[0057] If the air filter body 10 is too small and the adjusting screw 25 does not correspond to the table support 21, the adjusting screw 25 is not operated to lock the air filter body 10;

[0058] The control device 12 controls the motor 52 inside the air cylinder 51 of the air suction mechanism 5 to start, and automatically controls the driving shaft 521 and the wind blades 522 to rotate at high speed to suck air, so that the air filter element body 10 performs a filtering test, and the air is sucked from top to bottom;

[0059] The wind speed sensor 31 is located directly below the air filter element body 10 to detect the change in wind speed in real time, start the drive motor 332 of the wind speed sensor detection and adjustment mechanism 3, automatically control the screw 33 to rotate and adjust, and then control the sleeve 321 to adjust the height up and down, so that the wind speed sensor 31 detects the wind speed at different heights. The smaller the wind speed, the weaker the filtering performance of the air filter element body 10, so as to detect the filtering performance of the air filter element body 10 more efficiently and accurately;

[0060] The PM2.5 sensor 41 detects the changes in the PM2.5 index of the air filter body 10 in real time, starts the electric push rod device 42 of the PM2.5 sensor detection and adjustment mechanism 4, and automatically controls the extension and retraction of the push rod 43, so that the PM2.5 sensor 41 detects the PM2.5 index at different positions. The larger the PM2.5 index, the weaker the filtering performance of the air filter body 10, so as to detect the filtering performance of the air filter body 10 more efficiently and accurately.

[0061] The detection frame 1 of the present invention, the air filter body 10, the adjustment slot 11, the limit slot 111, the control device 12, the observation window 13, the support leg 14, the installation slot 15, the adjustment slot 2 151, the air filter placement mechanism 2, the table bracket 21, the hydraulic cylinder 1 22, the hydraulic rod 1 221, the hydraulic cylinder 2 23, the hydraulic rod 2 231, the handle bar 24, the adjustment screw 25, the support plate 251, the hand wheel 252, the hydraulic cylinder 3 26, the hydraulic rod 3 261, the installation plate 262, the slide plate 263, the limit plate 264, the wind speed sensor detection Measuring and adjusting mechanism 3, wind speed sensor 31, cross bar 32, sleeve 321, screw 33, base 331, drive motor 332, bearing 333, fixing frame 334, end plate 335, PM2.5 sensor detecting and adjusting mechanism 4, PM2.5 sensor 41, electric push rod device 42, positioning plate 421, bracket 422, push rod 43, limit cylinder 431, air suction mechanism 5, air cylinder 51, air suction port 511, motor 52, drive shaft 521, wind blade 522, fixing rod 523, support rod 53, power output end Port 54, all components are universal standard parts or components known to technicians in this field, and their structures and principles can be known by technicians in this field through technical manuals or through conventional experimental methods. The problem solved by the present invention is that it is difficult to apply to the positioning detection of air filter elements of different models, and the filtering performance of the air filter element is not convenient for qualified detection and analysis. The present invention combines the above components with each other, and through the air filter element placement mechanism connected to the upper part of the detection frame, it is convenient to manually adjust the spacing between the four sets of table brackets horizontally or vertically, and is suitable for the placement of air filter elements of different models. Through the wind speed sensor detection and adjustment mechanism set below the air filter element placement mechanism and the PM2.5 sensor detection and adjustment mechanism set at the front and rear positions of the detection frame, it is convenient to automatically detect the wind speed and PM2.5 index below the filter element in real time, and different positions can be automatically adjusted to improve the detection accuracy. Through the suction mechanism set at the bottom of the inner side of the detection frame, it is convenient to simulate the inhaled air of the air filter element body, efficiently detect whether the filtering performance of the air filter element body is qualified, and effectively analyze the air permeability of the air filter element body.

[0062] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A filtration performance test station based on an air filter element, comprising a test frame (1), an air filter element placement mechanism (2), a wind speed sensor detection and adjustment mechanism (3), a PM2.5 sensor detection and adjustment mechanism (4) and an air suction mechanism (5), characterized in that: An air filter element body (10) is provided above the interior of the detection frame (1), and the air filter element body (10) is clamped on the top of the air filter element placement mechanism (2). The air filter element placement mechanism (2) includes a table support (21), and the table support (21) is four in number and is located at the bottom corner of the air filter element body (10); A hydraulic cylinder 1 (22) is fixedly provided between the horizontal spaces of the table support (21), a hydraulic rod 1 (221) is connected between the hydraulic cylinders 1 (22), a hydraulic cylinder 2 (23) is fixedly provided between the vertical spaces of the table support (21), a hydraulic rod 2 (231) is connected between the hydraulic cylinders 2 (23), and a handle rod (24) is fixedly provided on the top of the table support (21); Limiting grooves (111) are provided near the upper side of both sides of the detection frame (1), and the limiting grooves (111) are slidably connected to limiting plates (264) inside. A slide plate (263) is fixedly provided on the inner side end of the limiting plate (264), and a hydraulic cylinder three (26) is fixedly provided on the inner side end of the slide plate (263). A hydraulic rod three (261) is connected to the inner side end of the hydraulic cylinder three (26), and a mounting plate (262) is welded to the inner side end of the hydraulic rod three (261), and the mounting plate (262) is connected to the outer side wall of the table bracket (21) by bolts. The top two ends of the detection frame (1) are provided with adjustment grooves (11), the adjustment grooves (11) and the table support (21) are corresponding structures, a support plate (251) is fixedly provided inside the adjustment grooves (11), an adjustment screw (25) is connected to the inside of the support plate (251) via threads, and the adjustment screw (25) is connected to the table support (21) via threads, and a hand wheel (252) is welded to the outer end of the adjustment screw (25); The wind speed sensor detection and adjustment mechanism (3) is arranged below the air filter element placement mechanism (2), and the wind speed sensor detection and adjustment mechanism (3) is movably connected to both sides of the detection frame (1) near the bottom; The PM2.5 sensor detection adjustment mechanism (4) is arranged at the front and rear positions of the detection frame (1); The air suction mechanism (5) is arranged at the inner bottom of the detection frame (1); A control device (12) is installed at the front right end of the detection frame (1), and the control device (12) is electrically connected to the wind speed sensor detection adjustment mechanism (3), the PM2.5 sensor detection adjustment mechanism (4) and the air suction mechanism (5) through wires. Support legs (14) are welded at the bottom corners of the detection frame (1), and observation windows (13) are provided near the bottom of the front and rear ends of the detection frame (1); The wind speed sensor detection and adjustment mechanism (3) comprises a wind speed sensor (31), a crossbar (32), a screw (33), a base (331), a drive motor (332) and a fixing frame (334); mounting grooves (15) are provided at the lower sides of the detection frame (1); a second adjustment groove (151) is provided at the top of the mounting groove (15); and the width of the second adjustment groove (151) is smaller than the width of the mounting groove (15); An end plate (335) is fixedly provided at the inner top of the second adjustment slot (151), bearings (333) are fixedly provided below the end plate (335) and above the base (331), the screw rod (33) is rotatably connected between the bearings (333), the drive motor (332) is installed below the base (331), and the output end of the drive motor (332) is connected to the bottom of the screw rod (33), the fixing frame (334) is welded to the outer wall of the base (331) and the outer wall of the detection frame (1), sleeves (321) are welded at both ends of the cross bar (32), and the sleeves (321) are connected to the outside of the screw rod (33) through threads, and the wind speed sensor (31) is fixedly provided at the middle of the cross bar (32).

2. The filtration performance test station based on the air filter element according to claim 1, characterized in that: The PM2.5 sensor detection and adjustment mechanism (4) comprises a PM2.5 sensor (41), an electric push rod device (42) and a limit cylinder (431). The PM2.5 sensor (41) is arranged at the front and rear sides of the inner side of the detection frame (1). A push rod (43) is fixedly provided at the outer end of the PM2.5 sensor (41). The push rod (43) is connected to the detection frame (1). A positioning plate (421) is fixedly provided at the inner end of the electric push rod device (42). A bracket (422) is welded to the top and bottom of the positioning plate (421). The bracket (422) is welded to the outer wall of the detection frame (1). The outer end of the push rod (43) is connected to the output end of the electric push rod device (42). The limit cylinder (431) is fixedly provided at the front and rear ends of the detection frame (1). The push rod (43) is connected to the inside of the limit cylinder (431).

3. The filtration performance test station based on the air filter element according to claim 1, characterized in that: The air suction mechanism (5) comprises an air cylinder (51), the outer wall of the air cylinder (51) is welded with a support rod (53), and the support rod (53) is fixedly arranged at the inner corner of the detection frame (1) in an X-shaped structure.

4. The filtration performance test station based on the air filter element according to claim 3 is characterized in that: A suction port (511) having a flared structure is fixedly provided at the top of the suction mechanism (5); a motor (52) is provided at the lower part of the suction mechanism (5); a fixing rod (523) is fixedly distributed between the outer wall of the motor (52) and the inner wall of the wind tube (51); an output end of the motor (52) is connected to a driving shaft (521); a wind blade (522) is fixedly distributed on the upper outer wall of the driving shaft (521); and a power output port (54) is electrically connected to the outer side of the suction mechanism (5) near the front end.

Images