Boiler system stabilizing damper and flue control method

Abstract

One embodiment of a boiler system stabilizing damper for boiler flue systems comprising a cylindrical main housing ( 418 ), a pressure sensing means composed of sensor cap ( 414 ) and sensor hole ( 416 ), a pressure loss generating means composed of a single blade damper ( 410 ), a shaft ( 406 ) and motor ( 404 ), and a controller ( 402 ) comprising a pressure transducer and electronic control. Other embodiments are described.

1 . A stabilizing damper for flue control and boiler system stability, comprising:
 a.) a fluid conduit enabling the transmission of a gaseous fluid,   b.) a means near the inlet of said fluid conduit for sensing the static pressure of said gaseous fluid,   c.) a means near the outlet of said fluid conduit for generating a variable pressure loss in said gaseous fluid, and   d.) a controller in communication with said static pressure sensing means, and in communication with said means for generating a variable pressure loss, the controller comprising electronic circuitry capable of controlling said variable pressure loss.   
     
     
         2 . The stabilizing damper of  claim 1  wherein said conduit is of cylindrical geometry. 
     
     
         3 . The stabilizing damper of  claim 1  wherein said conduit is of oval geometry. 
     
     
         4 . The stabilizing damper of  claim 1  wherein said conduit is of rectangular geometry. 
     
     
         5 . The stabilizing damper of  claim 1  wherein said sensing means is a hole through said conduit and covered by a rectangular is of cylindrical geometry. 
     
     
         6 . The stabilizing damper of  claim 1  wherein said pressure loss means is a single blade damper. 
     
     
         7 . The stabilizing damper of  claim 1  wherein said pressure loss means is a butterfly damper. 
     
     
         8 . The stabilizing damper of  claim 1  wherein said pressure loss means is an iris damper. 
     
     
         9 . The stabilizing damper of  claim 1  wherein said controlling means comprises a stepper motor, a pressure transducer and an electronic control. 
     
     
         10 . The stabilizing damper of  claim 1  wherein said controlling means comprises a brushless DC motor, a pressure transducer and an electronic control.