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Title: Method of construction for internally cooled diaphragms for centrifugal compressor

Patent ·
OSTI ID:1637863

An internally-cooled compressor is provided including a casing and a diaphragm disposed in the casing. The diaphragm includes a diaphragm box defining a plurality of box channels and a bulb defining a plurality of bulb channels. A plurality of return channel vanes connect the diaphragm box and bulb in fluid communication, such that each return channel vane defines a plurality of return vane conduits coupled in fluid communication with the plurality of box channels and the plurality of bulb channels thereby forming a section of a cooling pathway. The cooling pathway is configured such that a cooling agent introduced from an external coolant source into the diaphragm box and flowing through a box channel flows through a return vane conduit into and through a bulb channel and back through another return vane conduit into another box channel before flowing back to the external coolant source.

Research Organization:
Dresser-Rand Company, Olean, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42650
Assignee:
Dresser-Rand Company (Olean, NY)
Patent Number(s):
10,584,721
Application Number:
14/190,931
OSTI ID:
1637863
Resource Relation:
Patent File Date: 02/26/2014
Country of Publication:
United States
Language:
English

References (5)

Dual Alloy Turbine Rotors and Methods for Manufacturing the Same patent-application December 2015
Multi-Segment Compressor Casing Assembly patent-application August 2007
System and Apparatus for Reducing Thrust Forces Acting on a Compressor Rotor patent-application January 2014
Multi-Pass Heat Exchangers Having Return Manifolds with Distributing Inserts patent-application April 2010
Internally-Cooled Centrifugal Compressor with Cooling Jacket Formed in the Diaphragm patent-application March 2012

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