Device for online improvement of steam turbine oil demulsibility

A device for online improvement of steam turbine oil demulsibility comprises an oil inlet valve and an oil supplementing valve, the oil inlet valve is connected with a steam turbine oil tank, the oil supplementing valve is in parallel connection with the oil inlet valve, the oil inlet valve and the oil supplementing valve are connected with an oil inlet of an oil absorbing filter after being in parallel connection, an oil outlet of the oil absorbing filter is connected with an oil suction port of an oil pump motor, an oil outlet of the oil pump motor is connected with an oil inlet of a demulsifying device, an oil outlet of the demulsifying device is connected with an oil inlet of a coarse filter, an oil outlet of the coarse filter is connected with an oil inlet of a fine filter, an oil outlet of the fine filter is connected to an outlet of the device through an oil outlet valve, the outlet of the device is connected to the steam turbine oil tank, and an adsorbing filter element for getting rid of surface active substance in oil is mounted in the demulsifying device. The device for online improvement of steam turbine oil demulsibility has the advantages that the demulsifying device is added to improve steam turbine oil demulsibility, so that demulsibility index of operating oil is ensured to meet the standard requirement; meanwhile, with an added online oil supplementing function, the device for online improvement of steam turbine oil demulsibility enables oil supplementing to be achieved without being externally connected with an oil filter, thereby being more convenient.