EP 3827200 B1 20220629 - FEED WATER CONTROL FOR FORCED THROUGHPUT BY-PRODUCT STEAM GENERATOR
Title (en)
FEED WATER CONTROL FOR FORCED THROUGHPUT BY-PRODUCT STEAM GENERATOR
Title (de)
SPEISEWASSERREGELUNG FÜR ZWANGDURCHLAUF-ABHITZEDAMPFERZEUGER
Title (fr)
RÉGULATION DE L'EAU D'ALIMENTATION POUR GÉNÉRATEUR DE VAPEUR À RÉCUPÉRATION DE CHALEUR À CIRCULATION FORCÉE
Publication
Application
Priority
- EP 18203107 A 20181029
- EP 2019075105 W 20190919
Abstract (en)
[origin: CA3117871A1] The invention relates to a method for operating a forced-flow steam generator constructed as a waste-heat steam generator having a pre-heater (1), comprising a number of pre-heater heating surfaces (2), and having an evaporator (3) comprising a number of evaporator heating surfaces (4) which are connected downstream on the flow medium side of the pre-heater heating surfaces (2), in which a device for adjusting a feed water mass flow is supplied having a set point for the feed water mass flow, wherein, during the creation of the set point for the feed water mass flow, a waste-heat flow transferred to a fluid in the evaporator heating surfaces (4) is determined and, in addition, mass storage and energy storage in the fluid in the evaporator heating surfaces (4) is detected during non-steady-state plant operation, characterized in that a behaviour over time of a mass storage in the evaporator (3) is coupled with a behaviour over time of a mass storage in the pre-heater (1), wherein scaling is carried out with a ratio of the density changes in the evaporator (3) and in the pre-heater (1). The invention further relates to a forced-flow waste-heat steam generator (11).
IPC 8 full level
F22D 5/30 (2006.01); F22B 29/06 (2006.01); F22B 35/12 (2006.01); F22D 5/34 (2006.01)
CPC (source: EP KR US)
F22B 29/067 (2013.01 - EP KR US); F22B 35/12 (2013.01 - EP KR US); F22D 5/30 (2013.01 - EP US); F22D 5/34 (2013.01 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3647657 A1 20200506; CA 3117871 A1 20200507; CA 3117871 C 20231003; CN 113056639 A 20210629; CN 113056639 B 20230414; EP 3827200 A1 20210602; EP 3827200 B1 20220629; ES 2927687 T3 20221110; JP 2022514453 A 20220214; JP 7114808 B2 20220808; KR 102558369 B1 20230724; KR 20210083302 A 20210706; US 11530812 B2 20221220; US 2021341139 A1 20211104; WO 2020088838 A1 20200507
DOCDB simple family (application)
EP 18203107 A 20181029; CA 3117871 A 20190919; CN 201980070849 A 20190919; EP 19783975 A 20190919; EP 2019075105 W 20190919; ES 19783975 T 20190919; JP 2021523264 A 20190919; KR 20217015943 A 20190919; US 201917282022 A 20190919