Device for testing smoke filtering performance of filter element

Abstract

The utility model provides a smoke filtering performance testing device for a filtering piece. The smoke filtering performance testing device comprises a case, a positioning seat, a pressing device, a particle generator, an air pump, a first particle photometer, a second particle photometer and a control screen, a first air hole is formed in the positioning seat; the pressing device comprises a mounting frame, an air cylinder and a pressing seat; the mounting frame is fixed on the case; the air cylinder is mounted on the mounting frame; a power output end is connected with the pressing seat; the pressing seat is positioned above the positioning seat; a second air hole is formed in the pressing seat; the particle generator is connected to one side of the positioning seat through a first air pipe and communicates with the second air hole; a detection head of the first particle photometer is connected to the other side of the positioning seat and is communicated with the air hole; the air pump is connected to the bottom of the second air hole through a second air pipe; a detection head of the second particle photometer is connected to one side of the positioning seat and is communicated with the first air hole; the display screen is respectively in electric signal connection with the cylinder, the particle generator, the air pump, the first particle photometer and the second particle photometer; according to the design, the smoke filtering performance of the filtering piece can be detected with high precision.

Description

Technical Field

[0001] This utility model relates to the field of smoke filtration performance testing technology, and in particular to a smoke filtration performance testing device for filter elements. Background Technology

[0002] After production, gas masks or other products that need to filter smoke and dust need to undergo smoke filtration performance testing. Current testing instruments are not perfect enough, and the test results are not accurate enough. Although they can preliminarily detect whether the smoke filtration performance of the product meets the standards, they cannot guarantee that all qualified products are excellent products. Therefore, improvements are still needed. Utility Model Content

[0003] The purpose of this invention is to provide a device for testing the smoke filtration performance of filter elements to address the background issues.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A filter element smoke filtration performance testing device includes a chassis, a positioning base, a pressing device, a particle generator, an air pump, a first particle photometer, a second particle photometer, and a control panel. The positioning base, the pressing device, and the control panel are fixed to the top of the chassis. The particle generator, air pump, first particle photometer, and second particle photometer are installed inside the chassis. The positioning base has a first air hole. The pressing device includes a mounting frame, a cylinder, and a pressing base. The mounting frame is fixed to the chassis. The cylinder is mounted on the mounting frame and its power output end is connected to the pressing base for controlling the up-and-down movement of the pressing base. The pressure seat is located above the positioning seat; the pressure seat has a second air hole; the second air hole and the first air hole are located in the same vertical direction; the particle generator is connected to one side of the positioning seat through the first air pipe and communicates with the second air hole; the probe of the first particle photometer is connected to the other side of the positioning seat and communicates with the air hole; the air pump is connected to the bottom of the second air hole through the second air pipe; the probe of the second particle photometer is connected to one side of the positioning seat and communicates with the first air hole; the display screen is electrically connected to the cylinder, particle generator, air pump, first particle photometer and second particle photometer respectively.

[0006] In a further description of this utility model, the chassis is provided with a support frame; the particle generator is fixed on the left side of the front side of the support frame; the air pump is fixed on the left side of the rear side of the support frame; the first particle photometer and the second particle photometer are installed vertically on the right side of the rear side of the support frame.

[0007] The beneficial effects of this utility model are as follows:

[0008] This design positions the filter element on a positioning seat. The control panel controls the operation of each component. A cylinder drives the pressure seat downwards, pressing the filter element firmly onto the positioning seat. A particle generator emits smoke containing particles, which is then fed into the second air hole of the pressure seat. A first particle photometer detects the concentration of smoke particles in the second air hole and transmits the data to the control panel. An air pump draws gas, and the gas from the second air hole in the pressure seat flows into the first air hole in the positioning seat. After passing through the filter element, the second particle photometer detects the concentration of smoke particles in the first air hole and transmits the data to the control panel for comparison, thus accurately detecting the smoke filtration performance of the filter element. Attached Figure Description

[0009] Figure 1 This is an overall structural diagram of the present invention. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings:

[0011] like Figure 1As shown, a filter element smoke filtration performance testing device includes a housing 1, a positioning base 2, a pressing device 3, a particle generator 4, an air pump (not shown), a first particle photometer 5, a second particle photometer 6, and a control panel 7; the positioning base 2, the pressing device 3, and the control panel 7 are fixed to the top of the housing 1; the particle generator 4, the air pump, the first particle photometer 5, and the second particle photometer 6 are installed inside the housing 1; the positioning base 2 is provided with a first air hole 21; the pressing device 3 includes a mounting bracket 31, a cylinder 32, and a pressure seat 33; the mounting bracket 31, the cylinder 32, and the pressure seat 33 are all installed inside the housing 1. The mounting bracket 31 is fixed on the housing 1; the cylinder 32 is mounted on the mounting bracket 31 and its power output end is connected to the pressure seat 33, used to control the up and down movement of the pressure seat 33; the pressure seat 33 is located above the positioning seat 2; the pressure seat 33 is provided with a second air hole; the second air hole and the first air hole 21 are located in the same vertical direction; the particle generator 4 is connected to one side of the positioning seat 2 through a first air pipe and communicates with the second air hole; the probe of the first particle photometer 5 is connected to the other side of the positioning seat 2 and communicates with the air hole; the air pump is connected to the first air pipe through a second air pipe. The bottom of the two vents; the probe of the second particle photometer 6 is connected to one side of the positioning seat 2 and communicates with the first vent 21; the display screen is electrically connected to the cylinder 32, particle generator 4, air pump, first particle photometer 5 and second particle photometer 6 respectively; the filter element tested in this design is a gas mask. The gas mask is placed face up on the positioning seat 2 for positioning. The operation of each device is controlled by the control screen 7. The cylinder 32 drives the pressure seat 33 to move downward, pressing the gas mask tightly on the positioning seat 2. The filter part of the gas mask is located at the first vent. Between 21 and the second vent, the particle generator 4 emits smoke containing particles into the second vent of the pressure seat 33. The first particle photometer 5 detects the concentration of smoke particles in the second vent and transmits the data to the control panel 7. The air pump draws gas, and the gas in the second vent of the pressure seat 33 flows into the first vent 21 in the positioning seat 2. After passing through the filter part of the gas mask, the second particle photometer 6 detects the concentration of smoke particles in the first vent 21 and transmits the data to the control panel 7 for data comparison, thereby accurately detecting the smoke filtration performance of the filter element.

[0012] In this design, the chassis 1 is equipped with a stand 11; the particle generator 4 is fixed on the left side of the front side of the stand 11; the air pump is fixed on the left side of the rear side of the stand 11; the first particle photometer 5 and the second particle photometer 6 are installed vertically on the right side of the rear side of the stand 11.

[0013] The above description does not limit the technical scope of this invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention shall still fall within the scope of the technical solution of this invention.

Claims

1. A device for testing the filtration performance of a filter element, characterized in that: The system includes a chassis, a positioning base, a pressing device, a particle generator, an air pump, a first particle photometer, a second particle photometer, and a control panel. The positioning base, pressing device, and control panel are fixed to the top of the chassis. The particle generator, air pump, first particle photometer, and second particle photometer are installed inside the chassis. The positioning base has a first air hole. The pressing device includes a mounting bracket, a cylinder, and a pressing base. The mounting bracket is fixed to the chassis. The cylinder is mounted on the mounting bracket, and its power output end is connected to the pressing base for controlling the up-and-down movement of the pressing base. The pressing base is located on the positioning base. Above; the pressure seat has a second air hole; the second air hole and the first air hole are located in the same vertical direction; the particle generator is connected to one side of the positioning seat through the first air pipe and communicates with the second air hole; the probe of the first particle photometer is connected to the other side of the positioning seat and communicates with the air hole; the air pump is connected to the bottom of the second air hole through the second air pipe; the probe of the second particle photometer is connected to one side of the positioning seat and communicates with the first air hole; the display screen is electrically connected to the cylinder, particle generator, air pump, first particle photometer and second particle photometer respectively.

2. The device for testing the smoke filtration performance of a filter according to claim 1, wherein: The chassis is equipped with a stand; the particle generator is fixed on the left side of the front of the stand; the air pump is fixed on the left side of the rear of the stand; the first particle photometer and the second particle photometer are installed vertically on the right side of the rear of the stand.

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