Patent ID: 7918235

Claim:
A dual functioning automatic system for de-scaling and blowing down an electrically powered steam boiler, which includes main controls, an inlet valve, and an outlet valve, comprising: a processing control module for controlling the blowing down and de-scaling of the boiler wherein control of the boiler is switched from the main controls to the processing control module when the user selects to have blow down cleaning performed on the boiler, wherein the processing control module is mounted in an easily accessible position with respect to the steam boiler main controls and in electrical communication with the electronic circuitry to which the boiler is connected and further operatively connected to the inlet and outlet valves to enable opening and closing thereof, the inlet valve being a check valve which is in a cleaning solution line that is in fluid communication with a water supply line, a pressure module in fluid communication with the pressure inside the boiler and in electrical communication with a transducer arrangement connected to the processing control module to enable the monitoring of the pressure inside the boiler, wherein the pressure module is associated with a timer measuring elapsed time and the combination of the pressure module and timer is configured to enable the processing control module to determine the need for and frequency of de-scaling and blow down steps, a peristaltic pump controlled by a timer or level detector and in fluid communication with a reservoir of cleaning solution, which is in fluid communication with the check valve thereby permitting introduction of cleaning solution into the water supply line which feeds into the interior of the boiler, wherein the transducer arrangement is comprised of two transducers operatively connected in tandem to each other and wherein the processing control module is configured to perform a blow down of the boiler by pressurizing the boiler to a desired pressure with water and opening the boiler outlet valve such that the contents of the boiler are discharged, and wherein the processing control module is configured to perform de-scaling of the boiler by pressurizing the boiler to a desired pressure with cleaning solution, soaking the boiler in the cleaning solution while the boiler is de-energized, opening the boiler outlet valve to discharge the boiler's contents, and refilling the boiler with fresh water.