CONTINUOUS FLOW STEAM GENERATOR WITH A TWO-PASS BOILER DESIGN

摘要

A continuous flow steam generator includes a combustion chamber, having substantially rectangular cross-section and a lower and upper combustion chamber region, and has a horizontal gas pass connected downstream of the combustion chamber on the flue-gas side. Gas-tight and gas-permeable peripheral walls of the generator are completely or partly made of steam generator pipes welded together and through which a flow medium can flow, and collectors are arranged and connected to the steam generator pipes such that groups of steam generator pipes connected in parallel form heating surface segments of the peripheral walls. First passage collectors are arranged and connected such that the flow medium from first heating surface segments of two parallel first peripheral walls of the lower combustion chamber region are mixed with the fluid medium from second heating surface segments of second peripheral walls, standing perpendicular to the first peripheral walls, of the upper combustion chamber region.

主权项

1. A continuous flow steam generator having
a combustion chamber which is of substantially rectangular cross section and which has a lower and an upper combustion chamber region, having a horizontal gas pass which is connected downstream of the combustion chamber at the flue gas side, wherein gas-tight and gas-permeable enclosure walls of the continuous flow steam generator are formed entirely or partially from welded-together steam generator tubes through which a flow medium can flow, and wherein collectors are arranged and connected to the steam generator tubes such that groups of steam generator tubes connected in parallel form heating surface segments of the enclosure walls, and first passage collectors are arranged and connected such that the flow medium from first heating surface segments of two parallel first enclosure walls from the lower combustion chamber region can be admixed to the flow medium from second heating surface segments of second enclosure walls, which are perpendicular to the first enclosure walls, from the upper combustion chamber region.