Air filtering material tester

Abstract

The utility model discloses an air filtering material tester and relates to the technical field of chemical or physical analysis. The air filtering material tester comprises a filtering material detection table, the upper end of the filtering material detection table is fixedly connected with a first filtering box, and a second filtering box is arranged above the filtering material detection table; the filtering material fixing assembly comprises a driving motor; the driving motor is fixedly connected to the surface of the first filtering box; a threaded rod is rotatably connected to the interior of the first filter box, a fixed rod is fixedly connected to the surface of the first filter box, the surface of the threaded rod is sleeved with a movable sleeve in a threaded mode, the air filter material is fixed through the first filter box and the second filter box, and the air filter material is sealed through a first sealing strip and a second sealing strip; the air filtering material testing device can prevent gas and smoke leakage during testing of the air filtering material from affecting the testing effect of the air filtering material, the detection effect and efficiency of the device are improved, and the accuracy and reliability of data detection of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical or physical analysis, in particular to an air filter material tester. Background Art

[0002] Air filter material tester is an instrument specially used to test the performance of air filter materials. It is usually multifunctional, including particle capture efficiency test, gas filtration efficiency test, resistance test, flow test, etc., to meet the user's comprehensive evaluation needs for filter performance. The Chinese utility model patent, authorization announcement number "CN201811907U", discloses an air filter material tester, including a high-efficiency filter, a corona neutralizer, a filter fixture, an aerosol generator, a laser particle counter, a differential pressure gauge and a computer. The high-efficiency filter outlet is connected to the corona neutralizer inlet and the aerosol generator inlet via pipelines, and the aerosol generator outlet is connected to the corona neutralizer inlet via pipelines; the filter fixture is sealed and assembled by an upstream fixture and a downstream fixture, the upstream fixture is composed of an air inlet pipeline and an air inlet cavity, the downstream fixture is composed of an air outlet pipeline and an air outlet cavity, the corona neutralizer outlet is connected to the air inlet pipeline of the upstream fixture, the laser particle counter is connected to the air outlet pipeline of the downstream fixture, and the differential pressure gauge is connected to the air inlet cavity and the air outlet cavity respectively; the laser particle counter and the differential pressure gauge are respectively connected to the computer.

[0003] The above technical solution uses a laser particle counter and a counting and sizing method to analyze the filtration efficiency at an average particle size of 0.3 μm, making it suitable for a wider range of industry applications. In addition to being used for the detection of respiratory protective equipment related materials and respiratory protective equipment, the detector can also be used for the detection of filtration efficiency and resistance of high-efficiency air filter materials. However, the above technical solution still has certain defects. The device is not convenient for replacing filter materials. When detecting multiple air filter materials, it takes a lot of time to replace the filter materials, which reduces the detection efficiency. For this reason, the utility model proposes a new solution. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an air filter material tester that can solve the problem that the device is inconvenient to replace the filter material, and that a lot of time is needed to replace the filter material when testing multiple air filter materials, thereby reducing the detection efficiency.

[0005] To achieve the above object, the utility model provides the following technical solutions: an air filter material tester, comprising a filter material testing platform, a first filter box is fixedly connected to the upper end of the filter material testing platform, and a second filter box is arranged above the filter material testing platform;

[0006] A filter material fixing assembly, the filter material fixing assembly is arranged on the surface of the first filter box, the filter material fixing assembly comprises a drive motor, and the drive motor is fixedly connected to the surface of the first filter box;

[0007] Among them, a threaded rod is rotatably connected inside the first filter box, a fixed rod is fixedly connected to the surface of the first filter box, the threaded rod rotates and passes through the second filter box, the fixed rod passes through the second filter box, a movable sleeve is threadedly sleeved on the surface of the threaded rod, and the movable sleeve is slidably connected to the fixed rod.

[0008] Preferably, the filter material fixing assembly further comprises four springs, the four springs are fixedly connected to the upper end of the second filter box, and the four springs are fixedly connected to the movable sleeve;

[0009] The surface of the first filter box is fixedly connected with a first sealing strip, the surface of the second filter box is fixedly connected with a second sealing strip, and the opposite surfaces of the first filter box and the second filter box are provided with air filter materials.

[0010] Preferably, the upper end of the second filter box is fixedly connected to a first connecting pipe, and one end of the first connecting pipe away from the second filter box is fixedly connected to a first pollutant detector;

[0011] Among them, the upper end of the filter material detection table is fixedly connected to a fixed bracket, the first pollutant detector is fixedly connected to the fixed bracket, the upper end of the fixed bracket is fixedly connected to a first electromagnetic flowmeter and a fan, the first pollutant detector and the first electromagnetic flowmeter are connected through a first connecting pipe, and the first electromagnetic flowmeter and the fan are connected through a first connecting pipe.

[0012] Preferably, a second connecting pipe is fixedly connected to the surface of the first filter box, a second pollutant detector is fixedly connected to one end of the second connecting pipe away from the first filter box, and the second pollutant detector is fixedly connected to the filter material detection platform;

[0013] Among them, the upper end of the filter material detection table is fixedly connected with a second electromagnetic flowmeter, the second pollutant detector is connected to the second electromagnetic flowmeter through a second connecting pipe, and the end of the second electromagnetic flowmeter away from the first filter box is fixedly connected with an exhaust port.

[0014] Preferably, a combustion furnace is fixedly connected to the side of the fixed bracket.

[0015] Preferably, four universal wheels are fixedly mounted on the lower end of the filter material testing platform.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The air filter material tester fixes the air filter material through the first filter box and the second filter box, and seals the air filter material through the first sealing strip and the second sealing strip, which can prevent gas and smoke leakage when testing the air filter material, and can effectively prevent external impurities or gases from entering the test system and affecting the authenticity of the test results and the test effect of the air filter material, thereby improving the detection effect and efficiency of the device and improving the accuracy and reliability of the detection data of the device.

[0018] (2) The air filter material tester can provide a buffer for the first filter box and the second filter box during the process of fixing the air filter material by setting a spring, thereby preventing the movable sleeve from excessively descending and squeezing the air filter material excessively, thereby damaging the air filter material. This improves the practicability of the device and the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the structure of an air filter material tester of the utility model;

[0021] Figure 2 This is a schematic diagram of the combustion furnace of the utility model;

[0022] Figure 3 This is a schematic diagram of the air filter material of the utility model;

[0023] Figure 4 This is a schematic diagram of the first sealing strip of the utility model;

[0024] Figure 5 This is a schematic diagram of the second sealing strip of the utility model.

[0025] Figure numerals: 1. filter material testing table; 2. fixed bracket; 3. combustion furnace; 4. first filter box; 5. second filter box; 6. movable sleeve; 7. drive motor; 8. threaded rod; 9. fixed rod; 10. spring; 11. air filter material; 12. first sealing strip; 13. second sealing strip; 14. first connecting pipe; 15. first pollutant detector; 16. first electromagnetic flowmeter; 17. fan; 18. second connecting pipe; 19. second pollutant detector; 20. second electromagnetic flowmeter; 21. exhaust port; 22. universal wheel. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] See also Figure 1-5 The utility model provides a technical solution: an air filter material tester, including a filter material detection platform 1, a first filter box 4 is fixedly connected to the upper end of the filter material detection platform 1, a second filter box 5 is arranged above the filter material detection platform 1, a filter material fixing component, the filter material fixing component is arranged on the surface of the first filter box 4, the filter material fixing component includes a driving motor 7, the driving motor 7 is fixedly connected to the surface of the first filter box 4, a threaded rod 8 is rotatably connected inside the first filter box 4, a fixing rod 9 is fixedly connected to the surface of the first filter box 4, the threaded rod 8 rotates and penetrates the second filter box 5, the fixing rod 9 penetrates the second filter box 5, the surface of the threaded rod 8 is threadedly sleeved with a movable sleeve 6, and the movable sleeve 6 is slidably connected to the fixing rod 9.

[0031] The filter material fixing assembly also includes four springs 10, which are fixedly connected to the upper end of the second filter box 5. The four springs 10 are all fixedly connected to the movable sleeve 6. The surface of the first filter box 4 is fixedly connected to a first sealing strip 12, and the surface of the second filter box 5 is fixedly connected to a second sealing strip 13. The opposite surfaces of the first filter box 4 and the second filter box 5 are provided with air filter materials 11.

[0032] The upper end of the second filter box 5 is fixedly connected with a first connecting pipe 14, and the end of the first connecting pipe 14 away from the second filter box 5 is fixedly connected with a first pollutant detector 15, the upper end of the filter material detection platform 1 is fixedly connected with a fixed bracket 2, the first pollutant detector 15 is fixedly connected to the fixed bracket 2, the upper end of the fixed bracket 2 is fixedly connected with a first electromagnetic flowmeter 16 and a fan 17, the first pollutant detector 15 and the first electromagnetic flowmeter 16 are connected via the first connecting pipe 14, and the first electromagnetic flowmeter 16 and the fan 17 are connected via the first connecting pipe 14.

[0033] A second connecting pipe 18 is fixedly connected to the surface of the first filter box 4, a second pollutant detector 19 is fixedly connected to the end of the second connecting pipe 18 away from the first filter box 4, the second pollutant detector 19 is fixedly connected to the filter material detection platform 1, a second electromagnetic flowmeter 20 is fixedly connected to the upper end of the filter material detection platform 1, the second pollutant detector 19 is connected to the second electromagnetic flowmeter 20 through the second connecting pipe 18, and an exhaust port 21 is fixedly connected to the end of the second electromagnetic flowmeter 20 away from the first filter box 4.

[0034] The combustion furnace 3 is fixedly connected to the side of the fixed bracket 2, and four universal wheels 22 are fixedly installed on the lower end of the filter material detection platform 1.

[0035] When using the device, first use the universal wheel 22 to move the device to an outdoor ventilated place, start the drive motor 7 to drive the threaded rod 8 to rotate, the threaded rod 8 drives the movable sleeve 6 to slide on the surface of the fixed rod 9, the movable sleeve 6 drives the spring 10 to rise, and the spring 10 drives the second filter box 5 to move, so that the first filter box 4 and the second filter box 5 are separated, and then the air filter material 11 is placed between the first filter box 4 and the second filter box 5, and then the drive motor 7 is rotated in the opposite direction to make the first filter box 4 and the second filter box 5 close to each other, fix the air filter material 11, and seal the air filter material 11 through the first sealing strip 12 and the second sealing strip 13 to avoid gas leakage during the detection of the air filter material 11, which affects the detection effect of the air filter material 11.

[0036] The use of the spring 10 facilitates buffering during the process of the first filter box 4 and the second filter box 5 fixing the air filter material 11 , thereby preventing the movable sleeve 6 from descending excessively and causing excessive squeezing of the air filter material 11 , thereby causing damage to the air filter material 11 .

[0037] A certain amount of fuel is added to the inside of the combustion furnace 3 and ignited to make it burn and generate smoke, and the fan 17 is started to suck the smoke generated by the combustion into the inside of the first connecting pipe 14, and the unfiltered smoke is detected by the first electromagnetic flowmeter 16 and the first pollutant detector 15, and the smoke is passed into the second filter box 5 and the first filter box 4, and the smoke is filtered by the air filter material 11, and the air filter material 11 is sealed by the first sealing strip 12 and the second sealing strip 13 to prevent smoke leakage from affecting the detection effect, and the filtered smoke is detected by the second pollutant detector 19 and the second electromagnetic flowmeter 20, and compared with the data detected by the first pollutant detector 15 and the first electromagnetic flowmeter 16, so as to analyze the filtering effect of the air filter material 11.

[0038] Furthermore, the air filter material 11 is fixed by the first filter box 4 and the second filter box 5, and the air filter material 11 is sealed by the first sealing strip 12 and the second sealing strip 13, which can prevent gas and smoke leakage when testing the air filter material 11, and can effectively prevent external impurities or gases from entering the test system, affecting the authenticity of the test results and the test effect of the air filter material 11, thereby improving the detection effect and efficiency of the device and improving the accuracy and reliability of the detection data of the device.

[0039] The provision of the spring 10 facilitates buffering during the process of fixing the air filter material 11 by the first filter box 4 and the second filter box 5, preventing the movable sleeve 6 from descending excessively and causing excessive squeezing of the air filter material 11, thereby causing damage to the air filter material 11, thereby improving the practicability of the device and improving the stability of the device.

[0040] Working principle: When using the device, first use the universal wheel 22 to move the device to an outdoor ventilated place, start the drive motor 7 to drive the threaded rod 8 to rotate, the threaded rod 8 drives the movable sleeve 6 to slide on the surface of the fixed rod 9, the movable sleeve 6 drives the spring 10 to rise, and the spring 10 drives the second filter box 5 to move, so that the first filter box 4 and the second filter box 5 are separated, and then the air filter material 11 is placed between the first filter box 4 and the second filter box 5, and then the drive motor 7 is rotated in the opposite direction to make the first filter box 4 and the second filter box 5 close to each other, fix the air filter material 11, and seal the air filter material 11 through the first sealing strip 12 and the second sealing strip 13 to avoid gas leakage during the detection of the air filter material 11, affecting the detection effect of the air filter material 11.

[0041] The use of the spring 10 facilitates buffering during the process of the first filter box 4 and the second filter box 5 fixing the air filter material 11 , thereby preventing the movable sleeve 6 from descending excessively and causing excessive squeezing of the air filter material 11 , thereby causing damage to the air filter material 11 .

[0042] A certain amount of fuel is added to the inside of the combustion furnace 3 and ignited to make it burn and generate smoke, and the fan 17 is started to suck the smoke generated by the combustion into the inside of the first connecting pipe 14, and the unfiltered smoke is detected by the first electromagnetic flowmeter 16 and the first pollutant detector 15, and the smoke is passed into the second filter box 5 and the first filter box 4, and the smoke is filtered by the air filter material 11, and the air filter material 11 is sealed by the first sealing strip 12 and the second sealing strip 13 to prevent smoke leakage from affecting the detection effect, and the filtered smoke is detected by the second pollutant detector 19 and the second electromagnetic flowmeter 20, and compared with the data detected by the first pollutant detector 15 and the first electromagnetic flowmeter 16, so as to analyze the filtering effect of the air filter material 11.

[0043] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An air filter material tester, characterized in that: It comprises a filter material detection platform (1), the upper end of the filter material detection platform (1) is fixedly connected to a first filter box (4), and a second filter box (5) is arranged above the filter material detection platform (1); A filter material fixing assembly, the filter material fixing assembly being arranged on the surface of the first filter box (4), the filter material fixing assembly comprising a drive motor (7), the drive motor (7) being fixedly connected to the surface of the first filter box (4); The first filter box (4) is internally rotatably connected to a threaded rod (8), the surface of the first filter box (4) is fixedly connected to a fixed rod (9), the threaded rod (8) rotatably passes through the second filter box (5), the fixed rod (9) passes through the second filter box (5), the surface of the threaded rod (8) is threadedly sleeved with a movable sleeve (6), and the movable sleeve (6) is slidably connected to the fixed rod (9).

2. An air filter material tester according to claim 1, characterized in that: The filter material fixing assembly further comprises four springs (10), the four springs (10) being fixedly connected to the upper end of the second filter box (5), and the four springs (10) being fixedly connected to the movable sleeve (6); The surface of the first filter box (4) is fixedly connected to a first sealing strip (12), the surface of the second filter box (5) is fixedly connected to a second sealing strip (13), and the opposing surfaces of the first filter box (4) and the second filter box (5) are provided with air filter materials (11).

3. The air filter material tester according to claim 1, characterized in that: The upper end of the second filter box (5) is fixedly connected to a first connecting pipe (14), and one end of the first connecting pipe (14) away from the second filter box (5) is fixedly connected to a first pollutant detector (15); The upper end of the filter material detection platform (1) is fixedly connected to a fixed bracket (2), the first pollutant detector (15) is fixedly connected to the fixed bracket (2), the upper end of the fixed bracket (2) is fixedly connected to a first electromagnetic flowmeter (16) and a fan (17), the first pollutant detector (15) and the first electromagnetic flowmeter (16) are connected via a first connecting pipe (14), and the first electromagnetic flowmeter (16) and the fan (17) are connected via a first connecting pipe (14).

4. The air filter material tester according to claim 1, characterized in that: A second connecting pipe (18) is fixedly connected to the surface of the first filter box (4); an end of the second connecting pipe (18) away from the first filter box (4) is fixedly connected to a second pollutant detector (19); and the second pollutant detector (19) is fixedly connected to the filter material detection platform (1); The upper end of the filter material detection platform (1) is fixedly connected to a second electromagnetic flowmeter (20), the second pollutant detector (19) is connected to the second electromagnetic flowmeter (20) via a second connecting pipe (18), and the end of the second electromagnetic flowmeter (20) away from the first filter box (4) is fixedly connected to an exhaust port (21).

5. The air filter material tester according to claim 3, characterized in that: A combustion furnace (3) is fixedly connected to the side of the fixed bracket (2).

6. The air filter material tester according to claim 1, characterized in that: Four universal wheels (22) are fixedly mounted on the lower end of the filter material detection platform (1).

Images