High-temperature and high-pressure valve monitoring method and system

The invention relates to the technical field of high-temperature and high-pressure valves, in particular to a high-temperature and high-pressure valve monitoring method and system. The method includes: setting monitoring points according to boiler steam turbine operation parameters; generating an operation evaluation value according to the historical operation data of the monitoring point, and generating a feedback time node according to the operation evaluation value; and acquiring temperature data of the monitoring point according to the preset feedback time node, generating an early warning instruction according to the temperature data, and judging whether a maintenance instruction is generated or not according to the early warning instruction. A monitoring module is additionally arranged on a pipeline behind a high-pressure and high-temperature valve, real-time temperature data are collected, an early warning instruction is generated, and a maintenance instruction is generated according to the early warni