Device and method for collecting particulate matter

Abstract

The invention discloses a particle collection device and method. The device comprises: a condensing device, an air inlet is provided at the top of the air inlet, an airtight bottle stopper is arranged at the air inlet, a condensing chamber is arranged inside, and an adjustable Opening and closing partitions, a liquid level sensor is arranged above the openable and closing partitions, an air pump 1 is connected to the condensation chamber, a pressure sensor and a refrigeration device are arranged between the two, communicating with the condensation chamber, a landslide, and The top end is connected to the condensing device, and the bottom end is connected to the evaporating device. The heat insulation plate can move up and down and is arranged on the left side of the evaporating device. plate and a heating device, and an air extraction device is arranged above the evaporation device. The particle collection equipment and method can efficiently collect the particles in the air, can realize the collection of the particles in the high-temperature chimney exhaust gas and the fog in the cold environment, and have high collection efficiency.

Description

technical field [0001] The invention relates to the technical field of environmental monitoring, in particular to a collection device and method for particulate matter. Background technique [0002] Flue gas at high temperature, fog and haze at low temperature are special forms of existence mixed with water and particulate matter in the atmosphere, forming a unique microcosmic ecosystem. Condensing smoke, fog, and haze into liquid droplets, evaporating and collecting particles after a series of operations, and then analyzing the composition and properties of the particles is of great significance for revealing the laws of biochemical reactions inside aerosols. [0003] The existing traditional methods of collecting particulate matter in the air can be classified into two categories: direct collection and enrichment collection. Direct collection methods include: syringe collection, plastic bag collection, gas collection tube collection, vacuum bottle collection, etc. Solutio...

AI Technical Summary

Problems solved by technology

[0003] The existing traditional methods of collecting particulate matter in the air can be classified into two categories: direct collection and enrichment collection. Direct collection methods include: syringe collection, plastic bag collection, gas collection tube collection, vacuum bottle collection, etc. Solution absorption method, packed column retention method, filter material retention method, etc. The direct collection method takes a short time, but the collected particles are less. big limitations

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