Corrosion-resistant leak hole device capable of carrying out continuous adjustment and real-time on-line calibration

The utility model provides a corrosion-resistant leak hole device capable of carrying out continuous adjustment and real-time on-line calibration. The corrosion-resistant leak hole device capable of carrying out continuous adjustment and real-time on-line calibration comprises a main pipeline, an evacuation assembly, a leak rate adjusting and calibrating assembly and an air source assembly, wherein the evacuation assembly, the leak rate adjusting and calibrating assembly and the air source assembly are communicated with the main pipeline. The evacuation assembly comprises a valve I, a cold trap and a vacuum pump unit I. The leak rate adjusting and calibrating assembly comprises a valve II arranged on the main pipeline, a micrometering valve, a vacuometer I, a valve III and a calibration volume, wherein the vacuometer I, the valve III and the calibration volume are communicated with the main pipeline and are connected in sequence. The air source assembly comprises a valve IV, a buffer tank, an air source and a vacuum pump unit II, wherein the air source and the vacuum pump unit II are connected with the buffer tank. The corrosion-resistant leak hole device capable of carrying out continuous adjustment and real-time on-line calibration can select an air medium which leaks in, carry out accurate adjustment on leak rate in a wide range from 10 Pa*m /s to 10 Pa*m /s, carry out real-time on-line calibration, and can be applied to corrosive environments.