Water quality monitoring system and steam turbine system including the same as well as water quality monitoring method

A water quality monitoring method evaluating a quality of steam to be used in a steam turbine system including steam turbines that produce mechanical energy from steam generated by a steam generation source, comprising:

• an acquisition step of acquiring steam that passes a bleed pipe that bleeds steam from a low pressure turbine to which steam of low pressure is supplied from among the steam turbines;
• a generation step of causing the steam acquired at the acquisition step to flow into a steam inlet tank and then condensing the steam to generate condensed water;
• a water quality measurement step of measuring the water quality of the condensed water generated by the generation step;
• and
• a water quality diagnosis step of diagnosing the water quality of the condensed water using a result of the measurement by the water quality measurement step, wherein
• at the generation step, the condensed water is generated at a location on a different floor of a building from a water quality measurement apparatus and higher in height where the condensed water is boosted to atmospheric pressure due to a head difference with respect to the water quality measurement apparatus configured to measure the water quality of the condensed water such that the water quality measurement apparatus measures the water quality of the condensed water boosted to the atmospheric pressure utilizing the head difference.