Moisture pre-separator for a steam turbine exhaust
A moisture pre-separator is described for an exhaust portion of a steam turbine, the exhaust portion including an exhaust hood, the exhaust hood enclosing an exhaust hood chamber, the exhaust hood including wall means having exhaust nozzle means passing therethrough, piping means affixed to the nozzle means, the moisture pre-separator comprising: (a) a first inner hollow member having an inlet end extending into the exhaust hood chamber, and an outlet end having a final diameter equal to the inside diameter of the piping means, the first inner hollow member affixed to the piping means at the outlet end thereof to form a jointure in sealing relationship the piping means; (b) a second hollow inner member disposed concentrically around the first hollow inner member, the second hollow inner member affixed at one end to the inlet end of the first hollow inner member, the second hollow inner member affixed at the other end to the piping means; (c) first channel means formed between the inner surface of the second hollow member, the inner surface of the piping means and the outer surface of the first hollow member; (d) second channel means formed between the outer surface of the second hollow member and the inner surface of the wall means; (e) first drain means in fluid communication with the first channel means for draining the first channel means; (f) second drain means in fluid communication with the second channel means for draining the second channel means; and (g) the first hollow inner member having aperture means therethrough in predetermined position proximate the inlet end.
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA
- Patent Number(s):
- US 4673426
- OSTI ID:
- 6366481
- Resource Relation:
- Patent File Date: Filed date 14 Feb 1986
- Country of Publication:
- United States
- Language:
- English
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