A filter respirator aerosol protection performance test device

Abstract

The utility model relates to aerosol protection performance test technical field, and disclose a kind of filter absorber aerosol protection performance test device, including base, fixed installation in the upper portion of base aerosol generator and test cabin, filter tube is fixedly installed in the right side of test cabin by support, the air inlet pipe of intercommunication being arranged in the left side of test cabin, filter absorber is fixedly installed in test cabin inside, first aerosol detector is fixedly installed in test cabin inside, and the connecting assembly of being set in the one side of base, the connecting assembly includes the filter mechanism of being arranged in the one side of test cabin, the one side of test cabin is provided with auxiliary mechanism, the outer end of air inlet pipe is provided with valve gate. The utility model solves the problem that existing test device when using, filter absorber is installed in test cabin and tests after completion, cannot carry out purification discharge to redundant gas, direct discharge is easy to cause pollution to external environment, to affect the applicability of device.

Description

Technical Field

[0001] This utility model relates to the field of aerosol protection performance testing technology, specifically a filter absorber aerosol protection performance testing device. Background Technology

[0002] Aerosols are gaseous dispersions composed of solid or liquid particles suspended in a gaseous medium. They are widely present in the air and may carry harmful substances such as viruses and bacteria, posing a threat to human health. As a crucial device for aerosol protection, the aerosol protection performance of filters is paramount. To ensure that filters effectively perform their protective function, accurate testing of their aerosol protection performance is necessary.

[0003] However, when the existing test equipment is in use, the filter absorber is installed in the test chamber and after the test is completed, it is impossible to purify and discharge the excess gas. Direct discharge can easily pollute the external environment, thus affecting the applicability of the equipment.

[0004] To address this issue, we propose a test device for the aerosol protection performance of filter absorbers. Utility Model Content

[0005] The purpose of this invention is to provide a device for testing the aerosol protection performance of a filter absorber, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a test device for the aerosol protection performance of a filter absorber, including a base; The aerosol generator and test chamber are fixedly installed on the upper part of the base; The filter tube is fixedly installed on the right side of the test chamber by a support; Connect to the air intake pipe located on the left side of the test chamber; A filter absorber that is fixedly installed inside the test chamber; The first aerosol detector is fixedly installed inside the test chamber; The system also includes a connecting assembly located on one side of the base, the connecting assembly including a filter mechanism located on one side of the test chamber, an auxiliary mechanism located on one side of the test chamber, and a valve located at the outer end of the air inlet pipe.

[0007] Preferably, the filtration mechanism includes an installation groove inside the filter tube, an installation frame inserted into the installation groove, a polypropylene filter plate fixedly installed inside the installation frame, a first sealing ring fixedly connected to the inner wall of the filter tube, a movable groove inside the filter tube, a movable block slidably connected to the inner wall of the movable groove, a beveled locking block fixedly connected to one side of the movable block, a first spring fixedly connected to the inner wall of the movable groove, a movable hole at the upper part of the inner wall of the movable groove, a pull rod movably connected inside the movable hole, a connecting groove inside the installation frame, a connecting frame inserted into the connecting groove, a dust removal plate fixedly installed inside the connecting frame, a locking groove on one side of the installation frame, and a locking hole at the upper part of the connecting frame.

[0008] Preferably, the auxiliary mechanism includes a second aerosol detector fixedly installed inside the filter tube, an alarm fixedly installed on the upper part of the filter tube, an absorption tube connected to the left side of the filter tube, a control valve installed near one end of the absorption tube, and a connecting tube connected to the right side of the filter tube.

[0009] Preferably, one end of the first spring is fixedly connected to the movable block, and the upper part of the movable block is fixedly connected to the pull rod. Through the cooperation of the mounting groove, mounting frame, polypropylene filter plate, first sealing ring, movable groove, movable block, inclined plate, first spring, movable hole, pull rod, connecting groove, connecting frame, dust removal plate, and slot, excess aerosol in the test chamber can be filtered and discharged, preventing direct discharge and damage to the outside world. In addition, the mounting frame and connecting frame are easy to disassemble manually, which facilitates manual cleaning of the polypropylene filter plate and dust removal plate, increasing the applicability of the device.

[0010] Preferably, the inclined card block is movably inserted through the movable groove, and the inclined card block is engaged with the groove and the engaging hole.

[0011] Preferably, the first sealing ring is disposed in the gap between the mounting groove and the mounting frame, and a second sealing ring is fixedly connected to the inner wall of the mounting frame. The second sealing ring is disposed in the gap between the connecting groove and the connecting frame. Through the cooperation of the second aerosol detector, alarm, absorption tube, control valve and connecting tube, the filtered gas can be detected and processed, which can avoid incomplete gas filtration and direct discharge to the outside, and further increases the applicability of the device.

[0012] Preferably, the absorption tube is connected to the test chamber.

[0013] This invention provides a device for testing the aerosol protection performance of a filter absorber. This device for testing the aerosol protection performance of a filter absorber has the following advantages: 1. This aerosol protection performance testing device for filter absorbers, through the setting of a filtration mechanism, under the action of the mounting groove, mounting frame, polypropylene filter plate, first sealing ring, movable groove, movable block, inclined plate block, first spring, movable hole, pull rod, connecting groove, connecting frame, dust removal plate, and slot, can filter and discharge excess aerosol in the test chamber, preventing direct discharge and damage to the outside world. In addition, the mounting frame and connecting frame are easy to disassemble manually, which facilitates manual cleaning of the polypropylene filter plate and dust removal plate, increasing the applicability of the device. 2. This filter absorber aerosol protection performance testing device, through the setting of auxiliary mechanisms, with the action of a second aerosol detector, alarm, absorption tube, control valve, and connecting pipe, can detect and process the filtered gas, which can avoid incomplete gas filtration and direct external emission, further increasing the applicability of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model; Figure 4 This is a schematic diagram of the structure of this utility model; Figure 5 This is a schematic diagram of the structure of this utility model; In the diagram: 1. Base; 2. Aerosol generator; 3. Connecting assembly; 31. Filtering mechanism; 311. Mounting slot; 312. Mounting frame; 313. Polypropylene filter plate; 314. First sealing ring; 315. Movable slot; 316. Movable block; 317. Inclined locking block; 318. First spring; 319. Movable hole; 3110. Pull rod; 3111. Connecting slot; 3112. Connecting frame; 3113. Dust removal plate; 3114. Locking slot; 32. Auxiliary mechanism; 321. Second aerosol detector; 322. Alarm; 323. Absorption tube; 324. Control valve; 325. Connecting tube; 4. Test chamber; 5. Filter tube; 6. Inlet pipe; 7. Filter absorber; 8. First aerosol detector. Detailed Implementation

[0015] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings. Example

[0016] like Figure 1-5As shown, this utility model provides a technical solution: a test device for the aerosol protection performance of a filter absorber, including a base 1, an aerosol generator 2 and a test chamber 4 fixedly installed on the upper part of the base 1, a filter pipe 5 fixedly installed on the right side of the test chamber 4 via a support, an air inlet pipe 6 connected to the left side of the test chamber 4, a filter absorber 7 fixedly installed inside the test chamber 4, a first aerosol detector 8 fixedly installed inside the test chamber 4, and a connecting assembly 3 located on one side of the base 1. The connecting assembly 3 includes a filter mechanism 31 located on one side of the test chamber 4, an auxiliary mechanism 32 located on one side of the test chamber 4, and a valve located at the outer end of the air inlet pipe 6. The filter mechanism 31 includes a mounting groove 311 opened inside the filter pipe 5, and a mounting frame 312 inserted into the mounting groove 311. A polypropylene filter plate 313 is fixedly installed inside the mounting frame 312. A first sealing ring 314 is fixedly connected to the inner wall of the filter tube 5. A movable groove 315 is opened inside the filter tube 5. A movable block 316 is slidably connected to the inner wall of the movable groove 315. An inclined locking block 317 is fixedly connected to one side of the movable block 316. A first spring 318 is fixedly connected to the inner wall of the movable groove 315. A movable hole 319 is opened at the upper part of the inner wall of the movable groove 315. A pull rod 3110 is movably connected inside the movable hole 319. A connecting groove 3111 is opened inside the mounting frame 312. A connecting frame 3112 is inserted into the connecting groove 3111. A dust removal plate 3113 is fixedly installed inside the connecting frame 3112. A locking groove 3114 is opened on one side of the mounting frame 312, and a locking hole is opened at the upper part of the connecting frame 3112.

[0017] In this embodiment, one end of the first spring 318 is fixedly connected to the movable block 316, and the upper part of the movable block 316 is fixedly connected to the pull rod 3110. Through the cooperation of the mounting groove 311, mounting frame 312, polypropylene filter plate 313, first sealing ring 314, movable groove 315, movable block 316, inclined plate block 317, first spring 318, movable hole 319, pull rod 3110, connecting groove 3111, connecting frame 3112, dust removal plate 3113, and slot 3114, excess aerosol in the test chamber 4 can be filtered and discharged, preventing direct discharge and damage to the outside world. In addition, the mounting frame 312 and connecting frame 3112 are easy to disassemble manually, which facilitates manual cleaning of the polypropylene filter plate 313 and dust removal plate 3113, increasing the applicability of the device.

[0018] Furthermore, the inclined plate 317 is movably inserted through the movable groove 315, and the inclined plate 317 is engaged with the groove 3114 and the engagement hole.

[0019] In use, the filter absorber 7 is manually installed inside the test chamber 4. Then, aerosol is introduced into the test chamber 4 via the aerosol generator 2. The filter absorber 7 absorbs and filters the aerosol. Subsequently, under the action of the first aerosol detector 8, the aerosol concentration can be detected, thus determining the aerosol protection effect of the filter absorber 7. Furthermore, after the test is completed, by connecting the connecting pipe 325 to an external absorption pump and opening the valve at the inlet pipe 6, the air inside the test chamber 4 can be extracted. When the gas inside the test chamber 4 passes through the filter pipe 5, it is filtered by the dust collector plate 3113 and the... Under the action of the propylene filter plate 313, the gas can be filtered, preventing incomplete aerosol absorption and direct emission, which would cause pollution. Furthermore, when it is necessary to disassemble the mounting frame 312, simply hold the pull rod 3110 and pull the movable block 316 to separate the inclined locking block 317 fixedly connected to one side of the movable block 316 from the locking groove 3114 and the locking hole. Then the mounting frame 312 can be taken out upwards, and the connecting frame 3112 can be taken out from the mounting frame 312. This makes it easy to clean the dust removal plate 3113 and the polypropylene filter plate 313 manually, thus facilitating subsequent use. Example

[0020] Based on Example 1, a preferred embodiment of the aerosol protection performance testing device for filter absorbers provided by this utility model is as follows: Figures 1 to 5 As shown: The auxiliary mechanism 32 includes a second aerosol detector 321 fixedly installed inside the filter tube 5, an alarm 322 fixedly installed on the upper part of the filter tube 5, an absorption tube 323 connected to the left side of the filter tube 5, a control valve 324 installed at one end of the absorption tube 323 near the filter tube 5, and a connecting tube 325 connected to the right side of the filter tube 5.

[0021] In this embodiment, the first sealing ring 314 is disposed in the gap between the mounting groove 311 and the mounting frame 312. The inner wall of the mounting frame 312 is fixedly connected to the second sealing ring, which is disposed in the gap between the connecting groove 3111 and the connecting frame 3112. Through the cooperation of the second aerosol detector 321, the alarm 322, the absorption tube 323, the control valve 324, and the connecting tube 325, the filtered gas can be detected and processed, which can avoid incomplete gas filtration and direct emission to the outside, further increasing the applicability of the device.

[0022] Furthermore, the absorption tube 323 is connected to the test chamber 4.

[0023] When the gas inside the test chamber 4 is discharged, the filtered gas can be detected by the second aerosol detector 321. When aerosol is detected in the gas, the alarm 322 can play an alarm role. At the same time, the control valve 324 is closed to prevent the gas inside the test chamber 4 from continuing to be discharged, which increases the applicability of the device.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A test device for the aerosol protection performance of a filter absorber, comprising a base (1); The aerosol generator (2) and the test chamber (4) are fixedly installed on the upper part of the base (1); The filter tube (5) is fixedly installed on the right side of the test chamber (4) by a support. Connect the air intake pipe (6) located on the left side of the test chamber (4); A filter absorber (7) is fixedly installed inside the test chamber (4); The first aerosol detector (8) is fixedly installed inside the test chamber (4); And the connecting assembly (3) is arranged on one side of the base (1), characterized in that: The connecting assembly (3) includes a filter mechanism (31) disposed on one side of the test chamber (4), an auxiliary mechanism (32) disposed on one side of the test chamber (4), and a valve disposed at the outer end of the air inlet pipe (6).

2. The device according to claim 1, wherein: The filtration mechanism (31) includes an installation groove (311) inside the filter tube (5), an installation frame (312) inserted into the installation groove (311), a polypropylene filter plate (313) fixedly installed inside the installation frame (312), a first sealing ring (314) fixedly connected to the inner wall of the filter tube (5), a movable groove (315) opened inside the filter tube (5), a movable block (316) slidably connected to the inner wall of the movable groove (315), and a sloping locking block (317) fixedly connected to one side of the movable block (316). 15) A first spring (318) is fixedly connected to the inner wall. An movable hole (319) is opened on the upper part of the inner wall of the movable groove (315). A pull rod (3110) is movably connected inside the movable hole (319). A connecting groove (3111) is opened inside the mounting frame (312). A connecting frame (3112) is inserted into the connecting groove (3111). A dust removal plate (3113) is fixedly installed inside the connecting frame (3112). A slot (3114) is opened on one side of the mounting frame (312), and a snap-fit ​​hole is opened on the upper part of the connecting frame (3112).

3. The device of claim 1, wherein: The auxiliary mechanism (32) includes a second aerosol detector (321) fixedly installed inside the filter tube (5), an alarm (322) fixedly installed on the upper part of the filter tube (5), an absorption tube (323) connected to the left side of the filter tube (5), a control valve (324) provided at one end of the absorption tube (323) near the filter tube (5), and a connecting pipe (325) connected to the right side of the filter tube (5).

4. The aerosol protection performance testing device for a filter absorber according to claim 2, characterized in that: One end of the first spring (318) is fixedly connected to the movable block (316), and the upper part of the movable block (316) is fixedly connected to the pull rod (3110).

5. The device of claim 2, wherein: The inclined plate (317) is movably inserted through the movable groove (315), and the inclined plate (317) is engaged with the groove (3114) and the locking hole.

6. The device of claim 2, wherein: The first sealing ring (314) is disposed in the gap between the mounting groove (311) and the mounting frame (312). The inner wall of the mounting frame (312) is fixedly connected with a second sealing ring, which is disposed in the gap between the connecting groove (3111) and the connecting frame (3112).

7. The aerosol protection performance testing device for a filter absorber according to claim 3, characterized in that: The absorption tube (323) is connected to the test chamber (4).

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