Title:
OPERATING METHOD, IN PARTICULAR FOR STARTING A ONCE-THROUGH STEAM GENERATOR HEATED USING SOLAR THERMAL ENERGY
Document Type and Number:
WIPO Patent Application WO/2015/028378
Kind Code:
A3
Abstract:
The invention relates to an operating method, in particular for starting a once-through steam generator (3) heated using solar thermal energy, wherein a previously determined desired enthalpy value (34) is taken into account in an operating phase under load for adjusting a device (5) for controlling a feed water mass flow (S) supplied to the once-through steam generator. In order to adjust the feed water mass flow (S) supplied to the once-through steam generator, in a starting phase preceding the operating phase under load, an adjusted desired enthalpy value (34') that is valid for said starting phase is taken into account, said altered correction value (34') being selected in such a way that the once-through steam generator (3) is overfed, causing a portion of the feed water mass flow (S) supplied to the once-through steam generator (3) to pass unevaporated out of the once-through steam generator (3) and to be discharged via a steam-water separator (100) arranged on the outlet of the once-through steam generator (3).
Inventors:
BRÜCKNER JAN (DE)
THOMAS FRANK (DE)
THOMAS FRANK (DE)
Application Number:
PCT/EP2014/067795
Publication Date:
May 28, 2015
Filing Date:
August 21, 2014
Export Citation:
Assignee:
SIEMENS AG (DE)
International Classes:
F22B35/14; F22B35/16
Domestic Patent References:
| WO2009150055A2 | 2009-12-17 |
Foreign References:
| DE102011004263A1 | 2012-08-23 | |||
| EP0777036A1 | 1997-06-04 | |||
| EP1701090A1 | 2006-09-13 | |||
| DE102011004277A1 | 2012-08-23 | |||
| DE102011004269A1 | 2012-08-23 | |||
| US5840130A | 1998-11-24 |
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