Water vapor sample temperature flow control system and control method

The invention belongs to the technical field of analysis and detection, and relates to a water vapor sample temperature and flow control system and method.The system comprises a primary cooler, a pressure reducing valve, a secondary cooler, a pressure gauge, a second thermometer and an adjustable flowmeter; the primary cooler, the pressure reducing valve, the secondary cooler and the adjustable flow meter are communicated in sequence; and the pressure gauge and the second thermometer are respectively communicated with the pipeline between the secondary cooler and the adjustable flowmeter. Through two-stage temperature and flow control, the temperature, pressure and flow of a water vapor sample can be accurately controlled, the sampling requirement is met, analysis and detection result data are stable and good in accuracy, accurate data support is provided for water vapor supervision, and normal operation of a large power station is guaranteed. 本发明属于分析检测技术领域，涉及一种水汽样品温度流量控制系统和控制方法，系统包括初级冷却器、减压阀、次级冷却器、压力表、第二温度计和