US 12,264,600 B2
Apparatus and method for controlling a gas stream temperature or rate of temperature change
Merrill Stanton Quintrell, Charlotte, NC (US)
Assigned to Electric Power Research Institute, Inc., Palo Alto, CA (US)
Filed by Electric Power Research Institute, Inc., Palo Alto, CA (US)
Filed on Jan. 11, 2024, as Appl. No. 18/410,567.
Application 18/198,524 is a division of application No. 16/121,468, filed on Sep. 4, 2018, granted, now 11,781,449, issued on Oct. 10, 2023.
Application 18/410,567 is a continuation in part of application No. 18/198,524, filed on May 17, 2023.
Prior Publication US 2024/0209756 A1, Jun. 27, 2024
Int. Cl. F01K 23/10 (2006.01); F01D 25/30 (2006.01); F02C 7/18 (2006.01)
CPC F01K 23/101 (2013.01) [F01D 25/305 (2013.01); F02C 7/18 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An apparatus for controlling a temperature of a gas stream, comprising:
a first gas duct portion having a shape of a first conical frustum defining openings at each of a larger base end and an opposite smaller base end and defining a passageway between said larger base end and said smaller base end, wherein said larger base end is configured to connect to an upstream process gas duct;
a second gas duct portion having a shape of a second conical frustum defining openings at each of a larger base end and an opposite smaller base end and defining a passageway between said larger base end and said smaller base end, wherein said larger base end is configured to connect to a downstream process gas duct; and
a connecting gas duct portion defining openings at a first end and a second opposite end and a passageway therebetween, wherein said first end of said connecting gas duct portion is connected to said smaller base end of said first gas duct portion and said second end of said connecting gas duct portion is connected to said smaller base end of said second gas duct portion such that the gas stream can pass from the upstream process gas duct through said passageway defined by said first gas duct portion, through said passageway defined by said connecting gas duct portion, and through said passageway defined by said second gas duct portion to the downstream process gas duct; and wherein said connecting gas duct portion comprises a plurality of ports that each define an opening to allow gas outside of said section of gas duct to pass into said passageway defined by said connecting gas duct portion;
wherein the connecting gas portion comprises a first header fluidly coupled to a first of the plurality of ports and a second header coupled to a second of the plurality of ports, each of the headers extending around a circumference of said connecting gas duct portion and each having a plurality of openings that allow the gas outside to pass into an interior of said passageway defined by said connecting gas duct portion wherein the second header is downstream of the first header.