EP 3992528 A1 20220504 - A METHOD OF CONTROLLING A SUPPLY OF FEED WATER INTO A BOILER
Title (en)
A METHOD OF CONTROLLING A SUPPLY OF FEED WATER INTO A BOILER
Title (de)
VERFAHREN ZUR STEUERUNG DER ZUFUHR VON SPEISEWASSER IN EINEN KESSEL
Title (fr)
PROCÉDÉ DE COMMANDE D'UNE ALIMENTATION EN EAU DANS UNE CHAUDIÈRE
Publication
Application
Priority
EP 20205158 A 20201102
Abstract (en)
The present invention relates to a system and method of controlling a supply of feed water into a boiler (10). The boiler (10) comprising a feed water inlet (20) for supplying feed water into the boiler (10), a steam outlet (22) for taking steam from the boiler (10) and a liquid level sensor (14) for measuring a liquid level in the boiler (10). The steam outlet (22) comprising a steam valve (26) defining a steam valve (26) opening degree, the method comprising measuring the liquid level in the boiler (10) using the liquid level sensor (14), determining a rate of change of the steam valve (26) opening degree and controlling the supply of feed water into the boiler (10) via the feed water inlet (20) based on the liquid level in the boiler (10), a reference liquid level for the boiler (10) and the rate of change of the steam valve (26) opening degree.
IPC 8 full level
CPC (source: EP KR)
F22D 5/30 (2013.01 - EP KR); F22D 5/34 (2013.01 - EP KR); F22D 7/12 (2013.01 - KR); F22D 11/02 (2013.01 - KR)
Citation (applicant)
- US 9476584 B2 20161025 - TIWARI AWADESH KUMAR [IN], et al
- JP 2504939 B2 19960605
- US 10185332 B2 20190122 - UNNIKRISHNAN SUNIL PUTHEN VEEDU [IN], et al
- CN 109028023 A 20181218 - UNIV WUHAN TECH
- US 7931041 B2 20110426 - MEHENDALE CHARUDATTA SUBHASH [US], et al
- US 10323547 B2 20190618 - PETZEN III JOHN ALEXANDER [US], et al
- JP 2018080672 A 20180524 - TOSHIBA CORP, et al
- K. J. ASTROMR. D. BELL: "Drum-boiler dynamics", AUTOMATICA, vol. 36, 2000, pages 363 - 378
- S. W. SMITH: "The Scientist and Engineer's Guide to Digital Signal Processing", 1999, CALIFORNIA TECHNICAL PUBLISHING
- G. F. GILMAN: "Boiler Control Systems Engineering, 1st ed. ISA - The Instrumentation", SYSTEMS AND AUTOMATION SOCIETY, 2005
- D. LINDSLEY: "Power-plant Control and Instrumentation - The control of boilers and HRSG systems", 2000, THE INSTITUTION OF ELECTRICAL ENGINEERS
Citation (search report)
- [XI] US 2015167961 A1 20150618 - TIWARI AWADESH KUMAR [IN], et al
- [X] EP 3246769 A1 20171122 - GEN ELECTRIC [US]
- [A] US 2012109581 A1 20120503 - REGAL MEIR [IL]
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3992528 A1 20220504; EP 3992528 B1 20230607; EP 3992528 C0 20230607; CN 116529529 A 20230801; JP 2023550290 A 20231201; KR 20230097130 A 20230630; PL 3992528 T3 20230911; WO 2022090480 A1 20220505
DOCDB simple family (application)
EP 20205158 A 20201102; CN 202180073735 A 20211029; EP 2021080150 W 20211029; JP 2023526634 A 20211029; KR 20237018193 A 20211029; PL 20205158 T 20201102