Once-through steam generator with a vertical gas flue of essenti

Details Once-through steam generator with a vertical gas flue of essenti Once-through steam generator with a vertical gas flue of essenti

1995-10-26

1997-09-02

Nelli, Raymond A.

Liquid heaters and vaporizers

Industrial

Port

F22B 3700

Patent

active

056620705

ABSTRACT:
A once-through steam generator includes tubes together forming combustion chamber walls and carrying fossil fuel burners. The tubes are frequently provided on their inner surfaces with fins forming a multiple thread and are connected parallel to one another for conducting a coolant flow. According to the invention, the internal tube diameter is a function of a quotient, and points determined by pairs of values of the internal tube diameter and of the quotient lie in a coordinate system between a curve and a straight line. A summated mass throughput of all of the tubes at 100% steam output divided by the circumference of the gas flue in a horizontal section through the combustion chamber is used to form the quotient, and four defined points then lie on the curve which has a steady ascending slope. Application of this configuration is advantageously possible even for once-through steam generators having nominal outputs down to far below 500 MW.

REFERENCES:
patent: 4825813 (1989-05-01), Yoshinani et al.
patent: 4987862 (1991-01-01), Wittchow et al.
patent: 5069171 (1991-12-01), Hansen et al.
patent: 5094191 (1992-03-01), Garkawe et al.
Babcock & Wilcox, I.P.C. F22B, pp. 1-4-1-5 "Steami Its Generation and Use".

Affiliated with

Also associated with

Rating

Once-through steam generator with a vertical gas flue of essenti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Once-through steam generator with a vertical gas flue of essenti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Once-through steam generator with a vertical gas flue of essenti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-299839