关键词: 压力, 气密性, 检测装置, 贮运箱

Abstract: In view of the fact that the monitoring instrument of the storage and transportation box is damaged and has a high failure rate, combined with the environmental protection mode of the storage and transportation box and the verification and calibration of the monitoring instrument, this paper puts forward the detection method of the monitoring instrument of the storage and transportation box in the maintenance process, and designs the multi parameter comprehensive detection equipment based on the micro processing system, By adopting the dual feedback control strategy of analog and digital sensors and proportional control for the valve actuator, a high-precision standard air pressure generation and control execution system and adapter unit are designed to realize the accurate control of the storage and transportation tank pressure in the detection process and the full range detection of the storage and transportation tank pressure sensor. At the same time, a high-precision temperature and humidity measurement unit is designed to realize the storage and transportation tank temperature and humidity measurement The single point detection and accurate leakage rate measurement of humidity sensor improve the detection efficiency of storage and transportation box, which is of great significance to improve the equipment integrity rate.

Key words: pressure, air tightness, measuring equipment, storage and transportation case.