EP 0439765 B1 19950503 - Steam generator.
Title (en)
Steam generator.
Title (de)
Dampferzeuger.
Title (fr)
Générateur de vapeur.
Publication
Application
Priority
EP 90101940 A 19900131
Abstract (en)
[origin: US5056468A] A steam generator includes a gas flue having burners for fossil fuel, a gas-tight tube wall with tubes, inlet and outlet headers connected to the tubes, the outlet header being at a higher level than the inlet header, and a down pipe outside the tube wall connecting the outlet to the inlet header. A steam line is connected to the outlet header and at least one heating surface is connected downstream of the outlet header in the steam line. A feedwater line is connected to the gas flue and an economizer is connected upstream of the gas flue in the feedwater line. A regulating device for influencing feedwater flow in the feedwater line detects at least one of: the steam enthalpy in the heating surface or the steam line downstream of the heating surface, the steam temperature in the heating surface or the steam line downstream of the heating surface, the thermal output transfer to the tubes, a ratio of feedwater flow in the feedwater line to steam flow in the steam line, a ratio of injection water flow into an injection cooler connected in the steam line to feedwater flow in the feedwater line, and residual moisture of steam in the steam line.
IPC 1-7
IPC 8 full level
F22B 35/00 (2006.01); F22B 29/02 (2006.01); F22B 35/02 (2006.01); F22B 35/08 (2006.01); F22B 37/14 (2006.01); F22D 5/26 (2006.01); F22G 5/12 (2006.01)
CPC (source: EP US)
F22B 29/026 (2013.01 - EP US); F22B 35/02 (2013.01 - EP US); F22B 35/086 (2013.01 - EP US); F22B 37/141 (2013.01 - EP US); F22D 5/26 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE DK FR GB IT LI
DOCDB simple family (publication)
EP 0439765 A1 19910807; EP 0439765 B1 19950503; AT E122137 T1 19950515; CA 2035198 A1 19910801; DE 59009015 D1 19950608; DK 0439765 T3 19951002; JP 3174079 B2 20010611; JP H04214101 A 19920805; US 5056468 A 19911015
DOCDB simple family (application)
EP 90124271 A 19901214; AT 90124271 T 19901214; CA 2035198 A 19910129; DE 59009015 T 19901214; DK 90124271 T 19901214; JP 3229491 A 19910130; US 64890491 A 19910131