Portable high-temperature flue gas sampler

Abstract

The invention discloses a portable high-temperature flue gas sampler. The portable high-temperature flue gas sampler comprises a chassis and a sampling tube, wherein a sampling probe is installed at the front end of the sampling tube, a first temperature sensor is installed on the sample tube positioned on the rear side of the sampling probe, the rear end of the sampling tube is connected to the chassis through a jack, a prefilter is installed in the sampling probe, a cooler, a sucking pump and a direct-current battery are installed in the chassis, a sampling chamber is formed in the chassis, an air outlet of the sampling tube is connected to an air inlet of the cooler, the cooler is a semiconductor chilling plate, an air outlet of the cooler is connected to an air inlet of the sucking pump, an air inlet and an air inlet are formed in the sampling chamber, a test port communicated with the sampling chamber is formed in the chassis, a second temperature sensor is inserted in the sampling chamber, an air inlet of the sampling chamber is communicated with an air outlet of the sucking pump, and the first temperature sensor and the second temperature sensor are connected with a temperature display. The structure can effectively and accurately control the temperature of flue gas.

Description

technical field [0001] The invention relates to a portable flue gas sampler, which is especially suitable for high-temperature flue gas sampling. Background technique [0002] Flue gas humidity measurement is an important indicator of flue gas monitoring. Due to domestic greenhouse gas (GHG) concentration determination, pollutants in flue gas (SO 2 , NO X etc.) concentrations are measured on a dry basis, but the flue gas flow rate is the wet basis flow rate measured by the general measurement method. It is necessary to measure the flue gas humidity and calculate the dry flue gas flow rate to calculate the total emission of the corresponding substances. At present, among the existing flue gas humidity measuring equipment, low-temperature flue gas humidity monitoring equipment is mature in technology, easy to operate, and accurate in data acquisition. However, there are difficulties in high-temperature flue gas monitoring, such as "Design and Research of Electronic Flue Gas...

AI Technical Summary

Problems solved by technology

However, there are difficulties in high-temperature flue gas monitoring, such as "Design and Research of Electronic Flue Gas Moisture Meter" and other documents, due to the limitation of the sensor material of the sampling probe, the direct monitoring of the humidity of high-temperature flue gas (above 200°C) There are very few instruments, most of which are still in the stage of theoretical research and material development, and industrial applications are still immature

At the same time, most of the existing equipment for indirectly measuring the humidity of high-temperature flue gas is an online monitoring device, and there are many corresponding supporting systems. It is difficult to realize portable mobile operation, and it is impossible to monitor the humidity of flue gas without an online monitoring system.

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