Apparatus and method for measuring total dissolved solids in a steam boiler

摘要

A method and apparatus for controlling the operation of a pressurised steam boiler heated by a burner (20). The method includes the steps of monitoring the level of total dissolved solids in water contained in the boiler (50), monitoring the level of water in the boiler (50), monitoring the pressure of steam in the boiler (50), monitoring the firing rate of the burner (20); controlling the blow down of the boiler (50) having regard to the level of total dissolved solids in water contained in the boiler (50), and controlling the flow rate of water into the boiler (50) and the firing rate of the burner (20). All input signals relating to the monitoring steps are passed to a common control unit (1) and all output signals relating to the controlling steps are transmitted from the common control unit (1). <IMAGE>