Tri-channel atmosphere particulate matter sampler

Abstract

The invention discloses a tri-channel atmosphere particulate matter sampler, which comprises a sampling bracket, a control cabinet, a control panel, rubber tubes and a base, wherein the sampling bracket is composed of a vertical bar, a horizontal bar and a sampling head; the horizontal bar is a radial shape and is hinged with the vertical bar; the sampling head is arranged on the horizontal bar; the control cabinet is composed of a vacuum pump, a flowmeter and a circuit board which are arranged in the control cabinet; an air suction port of the vacuum pump is provided with a shunt; the flowmeter is provided with a sensor; the control panel is arranged on the external surface of the control cabinet; the base is a rectangular frame and the bottom part of the base is provided with a roller wheel; the bottom end of the vertical bar of the sampling bracket is fixed on the top of the control cabinet; the control cabinet is fixed on the base; and the rubber tubes are respectively arranged between the sampling head and the inlet of the flowmeter and between the outlet of the flowmeter and the shunt. The invention has the characteristics of large collecting flow and capability of collecting atmosphere suspended matter with different particulate grades at the same time, and has simple structure, and convenient carrying and use.

Description

technical field [0001] The invention relates to the technical fields of atmospheric environment science and environmental monitoring, in particular to a three-channel atmospheric particle sampler for collecting suspended particulate matter in the atmosphere and monitoring the atmospheric environment. Background technique [0002] According to the different places of use, the existing atmospheric particle samplers can be divided into environmental samplers, indoor samplers and pollution source samplers. In addition, there are samplers for special purposes that simultaneously collect gas and particulate matter. Atmospheric particle samplers in the prior art generally consist of three parts: a sampling head, a flow meter and an air extraction power system. According to different types of use, it can be divided into: a) portable single- and dual-channel atmospheric particle samplers; b) large and medium-flow atmospheric particle samplers; c) atmospheric particle multi-stage samp...

AI Technical Summary

Problems solved by technology

In many models and various types of atmospheric particle samplers, there are some shortcomings: type a) has a small sampling flow rate and a small sample volume, and is not suitable for near-surface sampling in densely populated areas; type b) has a large volume, Heavy weight, not conducive to carrying and handling, the sampling head cannot be raised and lowered, and the sampling height cannot be adjusted; type c) cannot be completed due to the influence of particle resuspension when the multi-stage impact cutter collects atmospheric suspended particles of different sizes at the same time Simultaneously collect atmospheric suspended solids of different particle sizes including TSP in one sampling head

Images