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Air suspension smoke screen particle sampling device and method

A sampling device and atmospheric sampling technology, applied in the direction of sampling device, etc., can solve the problems of sampling analysis, ordinary smoke can be sampled and analyzed with aerosol sampler or atmospheric sampler, etc.

Inactive Publication Date: 2015-12-02
中国人民解放军防化学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for effective detection of suspended particulate matter (PM) from gaseous pollutants like gases emitted by fires. By collecting these small solid objects called smokes into tiny tubular containers that have filters made up of fine fibers with holes therein, this system becomes more efficient at detecting smaller particles than traditional methods.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the ability to analyze and measure particulate matter (PM) that may affect fire safety systems such as air conditioner filters during fires caused by harmful gases released from burning material like wood pulp).

Method used

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  • Air suspension smoke screen particle sampling device and method
  • Air suspension smoke screen particle sampling device and method
  • Air suspension smoke screen particle sampling device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Place the air-suspended smoke particle sampling device in the superatmospheric suspended particle system, connect the tail of the sampling pipe 1 (latex pipe or plastic pipe, etc.) to the vacuum pump 10 through the connecting pipe 9, and after starting the vacuum pump 10, rely on the suction of the vacuum pump. The airflow loaded with smoke particles will pass through the filter head 5 on the sampling tube 1 and enter the inner cavity of the tube body 4, the air and tiny particles will pass through the filter screen 7, and the smoke particles will adhere to the filter screen 7 to obtain a sample of smoke particles .

Embodiment 2

[0036] Exchange the position of the sealing gasket 6 and the filter screen head 5. At this time, the filter screen 7 can be used as a support net, and then install a layer of ordinary filter with a pore size between 0.01 and 10 microns between the sealing gasket 6 and the filter screen 7. filter membrane, the sealing gasket 6 is fastened with fastening screws, so that the ordinary filter membrane and the filter screen 7 are pressed together on the sampling tube 1, and the sampling tube is converted into an ordinary aerosol sampling tube at this time, and the After the vacuum pump 10 is connected, a smoke screen aerosol sampling device can be formed, thereby realizing the sampling and analysis of conventional smoke screens.

Embodiment 3

[0038] The sealing gasket 6 and the filter screen head 5 are exchanged, and now the filter screen 7 can be used as a support net, and then an ultrafine filter membrane with a pore size of less than 0.01 micron is installed between the sealing gasket 6 and the filter screen 7, Fasten the sealing gasket 6 with fastening screws, so that the ultrafine filter membrane and the filter screen 7 are pressed together on the sampling tube 1. At this time, the sampling tube 1 is converted into an atmospheric sampling tube, and it is connected to the vacuum pump. An atmospheric sampling device can be formed to realize the sampling and analysis of the atmospheric environment.

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Abstract

An air suspension smoke screen particle sampling device comprises a sampling pipe, a fixing strap and a triangular support. The sampling pipe is composed of a pipe body, a filter screen head and a sealing gasket. The sampling pipe is fastened to the triangular support through the fixing strap. A cavity is formed in the pipe body. A pipe opening in one end is connected with the filter screen head. A pipe opening in the other end is connected to a sampling pump through a hose. The filter screen head is composed of a filter screen and a filter screen supporting gasket. The filter screen is in the shape of a fine crossed gridding, and the filter screen head and the pipe body are fixed together through two screws. The middle of a combined portion is sealed through the sealing gasket. According to an air suspension smoke screen particle sampling method, the suspension smoke screen particle sampling device is placed in a super-atmosphere suspended particle system, the tail of the sampling pipe and a vacuum pump are connected through a connecting pipe, after the vacuum pump is started, air flow carrying smoke particles will enter the inner cavity of the pipe body by means of suction force of the vacuum pump, air and tiny particles will penetrate through the filter screen, the smoke particles will be attached to the filter screen, and smoke screen particle samples are obtained.

Description

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Claims

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Application Information

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Owner 中国人民解放军防化学院
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