Hechun WU, Wenjun SHAN, Fujun LIU, et al. Design and Application of High Reliability Intelligent Pressure Switch[J]. Power Generation Technology, 2019, 40(5): 503-508.
DOI:
Hechun WU, Wenjun SHAN, Fujun LIU, et al. Design and Application of High Reliability Intelligent Pressure Switch[J]. Power Generation Technology, 2019, 40(5): 503-508. DOI: 10.12096/j.2096-4528.pgt.19076.
Design and Application of High Reliability Intelligent Pressure Switch
Pressure switch is an important primary signal element in thermal power unit protection system. The accuracy
reliability and rapidity of the pressure switch measurement directly determine the correct and fast operation of the power plant protection system. Aiming at the shortcomings of mechanical pressure switch and pressure transmitters as protection elements
this paper designsed a two-wire intelligent digital display pressure switch with low power consumption and high reliability according to the design principles of protection
regulation and monitoring. The reliability design and test of the intelligent pressure switch was carried out. The test results show that the pressure switch can effectively solve the problems of jamming
offset
non-monitoring and non-prediction existing in the traditional pressure switch
and has obvious advantages of low power consumption
high reliability
high precision and calibration-free
which provides a fundamental and effective guarantee for the reliability of the power plant protection system.