Air supply and conditioning system for a turbine system and method of supplying air

Abstract

An air supply and conditioning system for a turbine system includes an atomizing air system comprising at least one conditioning component configured to receive a compressor discharge air supply at an inlet at a first temperature and a first pressure, wherein the at least one conditioning component conditions the compressor discharge air supply to a second temperature and a second pressure at an outlet. Also included is an air processing unit configured to receive the compressor discharge air supply from the outlet of the atomizing air system, wherein the air processing unit further conditions the compressor discharge air supply to a third temperature and a third pressure. Further included is a filter housing having at least one filter for filtering a main inlet airstream, wherein the compressor discharge air supply is provided from the air processing unit to the at least one filter.

1 . An air supply and conditioning system for a turbine system comprising:
 an atomizing air system comprising at least one conditioning component configured to receive a compressor air supply at an inlet at a first temperature and a first pressure, wherein the at least one conditioning component conditions the compressor air supply to a second temperature and a second pressure at an outlet;   an air processing unit configured to receive the compressor air supply from the outlet of the atomizing air system, wherein the air processing unit further conditions the compressor air supply to a third temperature and a third pressure; and   a filter housing having at least one filter for filtering a main inlet airstream, wherein the compressor air supply is provided from the air processing unit to the at least one filter.   
     
     
         2 . The air supply and conditioning system of  claim 1 , further comprising an air ejector disposed proximate an inlet of the air processing unit. 
     
     
         3 . The air supply and conditioning system of  claim 2 , wherein the air ejector is configured to receive the compressor air supply and a low pressure airstream from the filter housing. 
     
     
         4 . The air supply and conditioning system of  claim 1 , further comprising a heat exchanger disposed proximate an inlet of the air processing unit for cooling the compressor air supply. 
     
     
         5 . The air supply and conditioning system of  claim 1 , wherein the at least one conditioning component comprises at least one of an atomizing air cooler, a moisture separator and a filter. 
     
     
         6 . The air supply and conditioning system of  claim 1 , wherein the air processing unit comprises at least one of a water separator and an air drying component. 
     
     
         7 . The air supply and conditioning system of  claim 1 , wherein the first temperature is about 800° F. (427° C.) and the first pressure is about 250 psia. 
     
     
         8 . The air supply and conditioning system of  claim 1 , wherein the second temperature is about 225° F. (107° C.) and the second pressure is about 250 psia. 
     
     
         9 . The air supply and conditioning system of  claim 1 , wherein the third temperature is about 145° F. (63° C.) and the third pressure is about 120 psia. 
     
     
         10 . An air supply and conditioning system for an integrated gasification combined cycle (IGCC) plant comprising:
 at least one cooling component configured to receive an air supply from a gas turbine component at a first temperature and a first pressure;   an air supply junction for diverting the air supply at a second temperature and a second pressure to a first path leading to an air separation unit and a second path; and   a filter housing having at least one filter for filtering a main inlet airstream, wherein the air supply is provided along the second path to the at least one filter.   
     
     
         11 . The air supply and conditioning system of  claim 10 , wherein the at least one cooling component comprises at least one of a heat exchanger and a trip cooler. 
     
     
         12 . The air supply and conditioning system of  claim 10 , wherein the first temperature is about 800° F. (427° C.). 
     
     
         13 . The air supply and conditioning system of  claim 10 , wherein the first pressure is about 250 psia. 
     
     
         14 . The air supply and conditioning system of  claim 10 , wherein the second temperature is about 110° F. (43° C.). 
     
     
         15 . The air supply and conditioning system of  claim 10 , wherein the second pressure is about 120 psia. 
     
     
         16 . A method of supplying air to a filter housing of a turbine system comprising:
 providing an air supply at a first temperature and a first pressure from a gas turbine component to an atomizing air system;   cooling and lowering the pressure of the air supply during passage of the air supply through at least one air conditioning component of the atomizing air system;   directing the air supply from an outlet of the atomizing air system to an air processing unit;   cooling and lowering the pressure of the air supply during passage of the air supply through at least one cooling component of the air processing unit; and   supplying the air supply to at least one filter disposed within the filter housing.   
     
     
         17 . The method of  claim 16 , further comprising directing a low pressure airstream from the filter housing to an inlet of the air processing unit. 
     
     
         18 . The method of  claim 17 , further comprising:
 injecting the air supply into an air ejector as a motive fluid; and   injecting the low pressure airstream into the air ejector as a suction fluid.   
     
     
         19 . The method of  claim 16 , wherein the air supply is at a second temperature upon supplying to the at least one filter. 
     
     
         20 . The method of  claim 19 , wherein the first temperature is about 800° F. (427° C.) and the second temperature is about 110° F. (43° C.).