Gas sampling system for high dust and high humidity environment

• Main Authors: YU HAIYANG, ZHANG JIE, ZHANG MINMIN, FU WEI, HUA MING, LU JIHUA
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; SEPARATION; TESTING; TRANSPORTING

The invention relates to a gas sampling system for a high dust and high humidity environment, and the system comprises a sampling port, a dust filtering unit, a dehumidifying unit, a sucking pump anda gas analyzing unit which are connected in sequence; a sampling passage is formed among the dust filtering unit, the third controller, the dehumidifying unit, the first controller, the sucking pump,the second controller and the gas analyzing unit which are connected in sequence; a back-blowing passage is formed among the first air pipeline, the first controller, the sucking pump, the second controller, the back-blowing pipeline, the third controller and the dust filtering unit which are connected in sequence, and switching between the sampling passage and the back-blowing passage is selectedaccording to a detection result of the flow detector. According to the invention, sampling blowback is automatically switched according to signals of the flow detector, and meanwhile, the dehumidification unit is automatically