Device for on-line monitoring of vacuum leakproofness of steam turbine based on gas state equation and running method

The invention relates to a device for on-line monitoring of vacuum leakproofness of a steam turbine based on a gas state equation and a running method. At present, on-line monitoring of leakproofnessof a field vacuum system cannot be performed. In the device for on-line monitoring of vacuum leakproofness of a steam turbine based on a gas state equation, a condenser is connected with a vacuum pumpthrough a No.1 pipeline, and a vacuum breaking valve is mounted on the No.1 pipeline; the vacuum pump is connected with a steam-water separation device; the steam-water separation device is connectedwith a gas collection device through a No.2 pipeline, a steam-water separation device safety valve, a steam-water separation device air bleeding regulating valve and a gas collection device air inletregulating valve are mounted on the No.2 pipeline, the gas collection device is connected with the vacuum pump through a No.3 pipeline, and a gas collection device vacuumizing regulating valve is mounted on the No.3 pipeline; a