Performance evaluation device for air pollutant purification material

Abstract

The utility model relates to the technical field of air detection, in particular to a performance evaluation device for an air pollutant purification material. Comprising a ventilation pipeline, a driving mechanism, a tail breaking device and two material fixing mechanisms. The ventilation pipeline comprises a main pipeline, a top pipeline and a folding hose; the driving mechanism comprises a first rotary driving assembly, a second rotary driving assembly, a linear driving assembly, a first mounting shaft, a second mounting shaft and two groups of telescopic rods; the pollutant simulation generation mechanism is mounted on the top pipeline; and the tail breaking device is mounted on the main body pipeline. The testing device is small in occupied space, capable of simulating different testing working conditions and high in applicability.

Description

Technical Field

[0001] The utility model relates to the field of air purification material performance evaluation, in particular to an air pollutant purification material performance evaluation device. Background Art

[0002] Air pollutants, including particulate matter (PM2.5, PM10), sulfur dioxide, nitrogen oxides, volatile organic compounds (VOCs), and ozone, pose serious risks to the respiratory and cardiovascular systems, as well as the ecological environment. Consequently, market demand for air pollutant purification materials has increased dramatically. These materials are primarily used in indoor air purifiers, industrial waste gas treatment, automobile exhaust purification, and urban air purification facilities, aiming to improve air quality and protect public health.

[0003] With the further widespread use of air purification materials in the environmental protection market, more and more air purification materials are launched on the market, but the quality is uneven. At present, there is no simple and convenient testing system that can quantitatively and intuitively evaluate the performance of air purification materials. How to evaluate the performance of air purification materials is particularly important. Therefore, the utility model proposes a performance evaluation device for multiple air pollutant purification materials. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes a performance evaluation device for air pollutant purification materials.

[0005] The technical solution of the utility model is a device for evaluating the performance of air pollutant purification materials, comprising:

[0006] The ventilation duct includes a main duct, a top duct and a foldable hose. The main duct and the top duct are connected by a foldable hose. A duct fan is installed at the bottom end of the main duct.

[0007] The driving mechanism includes a first rotary drive assembly, a second rotary drive assembly, a linear drive assembly, a first mounting shaft, a second mounting shaft, and two sets of telescopic rods. The first mounting shaft is fixedly connected to the top pipe, and the second mounting shaft is rotatably connected to the main pipe. The two sets of telescopic rods are respectively arranged at both ends between the main pipe and the top pipe. The upper end of the telescopic rod is rotatably connected to the first mounting shaft, and the lower end thereof is fixedly connected to the second mounting shaft. The linear drive assembly is installed on one side of the telescopic rod to drive the telescopic rod to extend and retract. The first rotary drive assembly is installed on the main pipe to drive the second mounting shaft to rotate. The second rotary drive assembly is installed on the telescopic rod to drive the first mounting shaft to rotate.

[0008] A pollutant simulation generating mechanism installed on the top pipe for generating a plurality of pollutant gases to form mixed pollutants;

[0009] Two sets of material fixing mechanisms for installing corresponding purification materials and installed in upper and lower layers on the main pipe;

[0010] The front-end gas comprehensive detection module, mid-end gas comprehensive detection module and tail-end gas comprehensive detection module installed on the main pipeline;

[0011] Tail crushing device, the tail crushing device is installed on the main pipeline.

[0012] Preferably, a plurality of diaphragms are provided on the inner side of the foldable hose, and the plurality of diaphragms form a serpentine-shaped gas flow channel in the foldable hose.

[0013] Preferably, the material fixing mechanism includes a fixed frame, a movable frame and an elastic connection component, the fixed frame is fixed on the inner wall of the main pipe, the movable frame is arranged above the fixed frame, and sealing strips are installed on the fixed frame and the movable frame. The elastic connection component includes a guide rod, a spring, a limit block and a fixed block, the fixed block is connected to the inner wall of the main pipe, the guide rod movably passes through the fixed block, the two ends of the guide rod are respectively connected to the movable frame and the limit block, and the spring sleeve is arranged on the outside of the guide rod; two discharge holes are provided on the side of the main pipe, and a first sealing plate and a second sealing plate are respectively provided on the outside of the two discharge holes, and a detachable connection structure is provided between the main pipe and the first sealing plate and the second sealing plate, and the inner side surfaces of the first sealing plate and the second sealing plate are respectively provided with sealing pads that fit the discharge holes.

[0014] Preferably, air balancing plates are provided on the inner sides of the main pipe and the top pipe.

[0015] Preferably, the pollutant simulation generating mechanism includes an ultraviolet UV lamp and a VOCS air inlet pipe and a smoke air inlet port connected to the top pipe.

[0016] Preferably, the front-end gas comprehensive detection module, the mid-end gas comprehensive detection module and the tail-end gas comprehensive detection module all include a PM2.5 sensor, a wind speed sensor, an ozone sensor and a VOCS sensor.

[0017] Preferably, the telescopic rod comprises a sleeve and a movable rod, and the end of the movable rod is slidably arranged inside the sleeve.

[0018] Preferably, the linear drive assembly includes a servo motor, a threaded rod and a threaded sleeve, the servo motor is mounted on the sleeve, the threaded rod is connected to the output shaft of the servo motor, the threaded sleeve is connected to the movable rod, and the threaded sleeve is threadedly connected to the threaded rod.

[0019] Preferably, the first rotary drive assembly includes a second hydraulic cylinder, a second rack and a second gear ring. The second hydraulic cylinder is installed on the main pipe, the second rack is connected to the output shaft of the second hydraulic cylinder, the second gear ring is fixed to the outer periphery of the second mounting shaft, and the second gear ring is meshed with the second rack.

[0020] Preferably, the second rotary drive assembly includes a first hydraulic cylinder, a first gear ring and a first rack. The first hydraulic cylinder is installed on the telescopic rod. A connecting frame is connected between the first rack and the output shaft of the first hydraulic cylinder. The first gear ring is fixed to the outer periphery of the first mounting shaft, and the first gear ring is meshed with the first rack.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] 1. A pollutant simulation generation mechanism simulates and generates a number of pollutant gases to form mixed pollutants, which then move downward driven by the duct fan. After being purified by the purification material on the material fixing mechanism, purified air is formed. The front-end gas comprehensive detection module, the mid-end gas comprehensive detection module, and the tail-end gas comprehensive detection module detect and record the pollution values ​​of the polluted air at different stages, such as upper, middle, and lower, thereby realizing the performance evaluation effect of the purification material. On this basis, the folding hose is extended to extend the stroke, so that a number of pollutant gases can be evenly mixed in it before moving downward to react with the purification material, thereby improving the accuracy of the purification material performance evaluation.

[0023] 2. Setting the ventilation duct vertically can save space. When the indoor height space is insufficient, the driving mechanism can be used to drive the top duct to flip downward to meet the usage requirements in different space conditions.

[0024] 3. The multiple diaphragms provided in the foldable hose can further prolong the flow time of the gas in the foldable hose, thereby further improving the mixing effect between the multiple pollutant gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 and Figure 2 All of them are structural schematic diagrams of the present invention.

[0026] Figure 3 It is a partial cross-sectional view of the present utility model.

[0027] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure at point A.

[0028] Figure 5 for Figure 2 Schematic diagram of the local enlarged structure at point B.

[0029] Figure 6 for Figure 3 Schematic diagram of the local enlarged structure at point C.

[0030] Reference numerals: 1, main pipe; 2, top pipe; 3, folding hose; 4, pipe fan; 5, tail breaking device; 61, front-end gas integrated detection module; 62, mid-end gas integrated detection module; 63, tail-end gas integrated detection module; 71, first sealing plate; 72, second sealing plate; 8, UV lamp; 9, VOCS air inlet pipe; 10, smoke air inlet; 111, sleeve; 112, movable rod; 121, servo motor; 122, threaded rod; 123. Threaded sleeve; 13. Air balancing plate; 14. Diaphragm; 151. First mounting shaft; 152. Second mounting shaft; 16. First hydraulic cylinder; 17. First gear ring; 18. First rack; 19. Connecting frame; 20. Second hydraulic cylinder; 21. Second rack; 22. Second gear ring; 23. Base; 24. Fixed frame; 25. Movable frame; 26. Sealing strip; 271. Guide rod; 272. Spring; 273. Limit block; 28. Fixed block. DETAILED DESCRIPTION

[0031] Example 1

[0032] like Figures 1-6 As shown, the present embodiment proposes an air pollutant purification material performance evaluation device, including a ventilation duct, a driving mechanism, a pollutant simulation generation mechanism, a front-end gas comprehensive detection module 61, a mid-end gas comprehensive detection module 62, a tail-end gas comprehensive detection module 63, a tail breaking device 5 and two sets of material fixing mechanisms.

[0033] The ventilation duct includes a main duct 1, a top duct 2 and a foldable hose 3. The top duct 2 is installed at the bottom end of the main duct 1 to support it, and the main duct 1 and the top duct 2 are connected by the foldable hose 3; a duct fan 4 is installed at the bottom end of the main duct 1; and a tail breaking device 5 is installed on the main duct 1.

[0034] The driving mechanism includes a first rotary drive component, a second rotary drive component, a linear drive component, a first mounting shaft 151, a second mounting shaft 152 and two groups of telescopic rods. The first mounting shaft 151 is fixedly connected to the top pipe 2, and the second mounting shaft 152 is rotatably connected to the main pipe 1. The two groups of telescopic rods are respectively arranged at both ends between the main pipe 1 and the top pipe 2. The telescopic rod includes a sleeve 111 and a movable rod 112. The end of the movable rod 112 is slidably arranged on the inner side of the sleeve 111. The upper end of the telescopic rod is rotatably connected to the first mounting shaft 151, and the lower end thereof is fixedly connected to the second mounting shaft 152. The linear drive component is installed on one side of the telescopic rod for driving the telescopic rod to extend and retract. The linear drive component includes a servo motor 121, a threaded rod 122 and a threaded sleeve 123. The servo motor 121 is installed on the sleeve 111. The threaded rod 122 is connected to the output shaft of the servo motor 121, and the threaded sleeve 123 is connected to the movable rod 112 , and the threaded sleeve 123 is threadedly connected to the threaded rod 122, the first rotation drive assembly is installed on the main pipe 1 for driving the second installation shaft 152 to rotate, the first rotation drive assembly includes a second hydraulic cylinder 20, a second rack 21 and a second gear ring 22, the second hydraulic cylinder 20 is installed on the main pipe 1, the second rack 21 is connected to the output shaft of the second hydraulic cylinder 20, the second gear ring 22 is fixed to the outer periphery of the second installation shaft 152, the second gear ring 22 is meshed with the second rack 21, the second rotation drive assembly is installed on the telescopic rod for driving the first installation shaft 151 to rotate, the second rotation drive assembly includes a first hydraulic cylinder 16, a first gear ring 17 and a first rack 18, the first hydraulic cylinder 16 is installed on the telescopic rod, a connecting frame 19 is connected between the first rack 18 and the output shaft of the first hydraulic cylinder 16, the first gear ring 17 is fixed to the outer periphery of the first installation shaft 151, and the first gear ring 17 is meshed with the first rack 18.

[0035] The pollutant simulation generating mechanism is used to generate a plurality of pollutant gases to form mixed pollutants. The pollutant simulation generating mechanism is installed on the top pipe 2 and includes an ultraviolet UV lamp 8 and a VOCS air inlet pipe 9 and a smoke air inlet 10 connected to the top pipe 2.

[0036] Two sets of material fixing mechanisms are used to install the corresponding purification materials and are installed in layers on the main pipe 1. The material fixing mechanism includes a fixed frame 24, a mobile frame 25 and an elastic connection component. The fixed frame 24 is fixed on the inner wall of the main pipe 1. The mobile frame 25 is arranged above the fixed frame 24. A sealing strip 26 is installed on both the fixed frame 24 and the mobile frame 25. The elastic connection component includes a guide rod 271, a spring 272, a limit block 273 and a fixed block 28. The fixed block 28 is connected to the inner wall of the main pipe 1. The guide rod 271 is connected to the inner wall of the main pipe 1. The rod 271 movably passes through the fixed block 28, and the two ends of the guide rod 271 are respectively connected to the movable frame 25 and the limit block 273, and the spring 272 is sleeved on the outside of the guide rod 271; two discharge holes are provided on the side of the main pipe 1, and the outsides of the two discharge holes are respectively provided with a first sealing plate 71 and a second sealing plate 72. The main pipe 1 and the first sealing plate 71 and the second sealing plate 72 have a detachable connection structure, and the inner sides of the first sealing plate 71 and the second sealing plate 72 are provided with sealing rubber pads that fit the discharge holes.

[0037] The front-end gas comprehensive detection module 61, the mid-end gas comprehensive detection module 62 and the tail-end gas comprehensive detection module 63 are all installed on the main pipeline 1. The front-end gas comprehensive detection module 61, the mid-end gas comprehensive detection module 62 and the tail-end gas comprehensive detection module 63 all include PM2.5 sensors, wind speed sensors, ozone sensors and VOCS sensors.

[0038] In this embodiment, before the test, the product made of the material is cut into a specific shape, the first sealing plate 71 and the second sealing plate 72 are disassembled, and then the two sections of material are respectively placed into the interior of the main pipe 1 through the two discharge holes, and the movable frame 25 is moved upward to place the material between the fixed frame 24 and the movable frame 25, and then the movable frame 25 is loosened, and the movable frame 25 is driven to press the section of material under the elastic force of the spring 272, and then the above method is installed to fix the two sections of material, and then the first sealing plate 71 and the second sealing plate 72 are installed, and the section of material is installed above the second section of material, and the UV is turned on. The operation of the UV lamp 8 generates ozone gas inside the top pipe 2, and the VOCS gas and smoke enter the top pipe 2 through the VOCS air inlet pipe 9 and the smoke air inlet 10 respectively. The multiple gases are mixed inside the top pipe 2, and the pipe fan 4 is started to work so that the gas flows from top to bottom inside the ventilation pipe. The front-end gas comprehensive detection module 61 is located above the first-stage material, the middle-end gas comprehensive detection module 62 is located between the first-stage material and the second-stage material, and the tail-end gas comprehensive detection module 63 is located below the second-stage material. The front-end gas comprehensive detection module 61, the middle-end gas comprehensive detection module 62 and the tail-end gas comprehensive detection module The setting of block 63 can detect various harmful substances in the gas before filtration, the gas after the first stage filtration and the gas after the second stage filtration. Valves are installed on the VOCS air inlet pipe 9 and the smoke air inlet 10 to control the air intake volume. The power of the ultraviolet UV lamp 8 can also be adjusted by the controller to adjust the ozone concentration in the top pipe 2. The controller can also control the power of the duct fan 4 to adjust the wind speed to simulate the test work under different working conditions; the tail breaking device 5 is set to process the exhaust gas; the setting of the folding hose 3 can extend the gas passing time and improve the mixing effect of the gas. The structure can drive the top pipe 2 to move to the other side of the main pipe 1 and flip it over, preventing the equipment from being unable to perform testing due to excessive extension. It can meet the usage requirements in different spaces and has strong applicability. The adjustment process of the top pipe 2 is as follows: the telescopic rod is driven to rotate by the first rotary drive component, thereby driving the top pipe 2 to rotate around the second mounting axis 152 to the bottom of the folding hose 3, and then the top pipe 2 is driven to rotate 180 degrees by the second drive component, so that the opening of the top pipe 2 faces the lower end, and finally the telescopic rod is driven to retract by the linear drive component so that the top pipe 2 is close to the main pipe 1.

[0039] Example 2

[0040] like Figure 3As shown, this embodiment proposes an air pollutant purification material performance evaluation device. Compared with Example 1, in this embodiment, multiple diaphragms 14 are arranged on the inner side of the foldable hose 3, and the multiple diaphragms 14 form a snake-shaped gas flow channel in the foldable hose 3; the multiple diaphragms 14 are arranged to further extend the flow time of the gas inside the foldable hose 3, and further improve the mixing effect of the gas.

[0041] Example 3

[0042] like Figure 3 As shown, this embodiment proposes an air pollutant purification material performance evaluation device. Compared with Example 1, in this embodiment, air equalizing plates 13 are provided on the inner sides of the main pipe 1 and the top pipe 2, and the air equalizing plates 13 are provided to enable the gas to flow evenly inside the pipe.

[0043] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An air pollutant purification material performance evaluation device, characterized in that: include: The ventilation duct comprises a main duct (1), a top duct (2) and a foldable hose (3), wherein the main duct (1) and the top duct (2) are connected via the foldable hose (3); a duct fan (4) is installed at the bottom end of the main duct (1); The driving mechanism comprises a first rotary drive assembly, a second rotary drive assembly, a linear drive assembly, a first mounting shaft (151), a second mounting shaft (152) and two sets of telescopic rods, wherein the first mounting shaft (151) is fixedly connected to the top pipe (2), the second mounting shaft (152) is rotationally connected to the main pipe (1), the two sets of telescopic rods are respectively arranged at two ends between the main pipe (1) and the top pipe (2), the upper end of the telescopic rod is rotationally connected to the first mounting shaft (151), and the lower end thereof is fixedly connected to the second mounting shaft (152), the linear drive assembly is mounted on one side of the telescopic rod for driving the telescopic rod to extend and retract, the first rotary drive assembly is mounted on the main pipe (1) for driving the second mounting shaft (152) to rotate, and the second rotary drive assembly is mounted on the telescopic rod for driving the first mounting shaft (151) to rotate; A pollutant simulation generating mechanism installed on the top pipe (2) for generating a plurality of pollutant gases to form mixed pollutants; Two sets of material fixing mechanisms for installing corresponding purification materials and installed in upper and lower layers on the main pipe (1); A front-end gas comprehensive detection module (61), a mid-end gas comprehensive detection module (62), and a rear-end gas comprehensive detection module (63) installed on the main pipeline (1); The tail breaking device (5) is installed on the main pipeline (1).

2. The air pollutant purification material performance evaluation device according to claim 1, characterized in that: A plurality of diaphragms (14) are provided on the inner side of the folded hose (3), and the plurality of diaphragms (14) form a serpentine-shaped gas flow channel in the folded hose (3).

3. The air pollutant purification material performance evaluation device according to claim 1, characterized in that: The material fixing mechanism includes a fixed frame (24), a movable frame (25) and an elastic connection component. The fixed frame (24) is fixed on the inner wall of the main pipe (1). The movable frame (25) is arranged above the fixed frame (24). The fixed frame (24) and the movable frame (25) are both installed with a sealing strip (26). The elastic connection component includes a guide rod (271), a spring (272), a limit block (273) and a fixed block (28). The fixed block (28) is connected to the inner wall of the main pipe (1). The guide rod (271) movably penetrates the fixed block (28). The two ends of the guide rod (271) are respectively connected to the movable frame (25) and the limit block (273), and the spring (272) is sleeved on the outside of the guide rod (271); two discharge holes are opened on the side of the main pipe (1), and the outsides of the two discharge holes are respectively provided with a first sealing plate (71) and a second sealing plate (72), and the main pipe (1) and the first sealing plate (71) and the second sealing plate (72) have a detachable connection structure, and the inner side surfaces of the first sealing plate (71) and the second sealing plate (72) are both provided with sealing pads that fit with the discharge holes.

4. The air pollutant purification material performance evaluation device according to claim 1, characterized in that: Air distribution plates (13) are provided on the inner sides of the main pipe (1) and the top pipe (2).

5. The air pollutant purification material performance evaluation device according to claim 1, characterized in that: The pollutant simulation generating mechanism comprises an ultraviolet UV lamp (8), a VOCS air inlet pipe (9) and a smoke air inlet (10) which are communicated with the top pipe (2).

6. The air pollutant purification material performance evaluation device according to claim 5, characterized in that: The front-end gas comprehensive detection module (61), the mid-end gas comprehensive detection module (62) and the rear-end gas comprehensive detection module (63) all include a PM2.5 sensor, a wind speed sensor, an ozone sensor and a VOCS sensor.

7. The air pollutant purification material performance evaluation device according to claim 1, characterized in that: The telescopic rod comprises a sleeve (111) and a movable rod (112), and the end of the movable rod (112) is slidably arranged inside the sleeve (111).

8. The air pollutant purification material performance evaluation device according to claim 7, characterized in that: The linear drive assembly comprises a servo motor (121), a threaded rod (122) and a threaded sleeve (123), wherein the servo motor (121) is mounted on the sleeve (111), the threaded rod (122) is connected to the output shaft of the servo motor (121), the threaded sleeve (123) is connected to the movable rod (112), and the threaded sleeve (123) is threadedly connected to the threaded rod (122).

9. The air pollutant purification material performance evaluation device according to claim 8, characterized in that: The first rotary drive assembly comprises a second hydraulic cylinder (20), a second rack (21) and a second gear ring (22); the second hydraulic cylinder (20) is mounted on the main pipe (1); the second rack (21) is connected to the output shaft of the second hydraulic cylinder (20); the second gear ring (22) is fixed to the outer periphery of the second mounting shaft (152); and the second gear ring (22) is meshedly connected to the second rack (21).

10. The air pollutant purification material performance evaluation device according to claim 9, characterized in that: The second rotary drive assembly comprises a first hydraulic cylinder (16), a first gear ring (17) and a first rack (18); the first hydraulic cylinder (16) is mounted on the telescopic rod; a connecting frame (19) is connected between the first rack (18) and the output shaft of the first hydraulic cylinder (16); the first gear ring (17) is fixed to the outer periphery of the first mounting shaft (151); and the first gear ring (17) is meshedly connected with the first rack (18).

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