Portable gas monitor

• Main Authors: WANG WEI, ZHU QIHU, YU LUNA, CHEN TAO, XIA ZHUQING, ZHENG TAO, DU JIANHUA, ZHANG JINGDONG, CHEN ZIPENG, FU XIAO
• Format: Patent
• Language: Chinese; English
• Published: 25.10.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

A portable gas monitor provided by the present invention comprises a sampling pipe, a monitoring box and a gas pump, the sampling pipe is provided with a plurality of sampling ports in the vertical direction, the sampling ports are provided with gas pressure valves, the plurality of gas pressure valves have non-coincident negative pressure opening threshold intervals, the monitoring box comprises a gas bin and at least one monitoring probe, and the gas bin is provided with a gas inlet and a gas outlet. The monitoring probe is in contact with gas in the gas bin, the sampling pipe is connected with the gas bin, a gas inlet of the gas pump is connected with the gas bin through a connecting pipe, and a gas outlet of the gas pump is connected with an exhaust pipe. The portable gas monitor is provided with a plurality of sampling ports, the sampling ports are distributed at different heights, layering and multi-point sampling can be carried out, the detection accuracy of the concentration of poisonous and harmful g