ES406840A1 - Method of controlling the feed of forced circulation steam generators - Google Patents

Method of controlling the feed of forced circulation steam generators

Info

Publication number
ES406840A1
ES406840A1 ES406840A ES406840A ES406840A1 ES 406840 A1 ES406840 A1 ES 406840A1 ES 406840 A ES406840 A ES 406840A ES 406840 A ES406840 A ES 406840A ES 406840 A1 ES406840 A1 ES 406840A1
Authority
ES
Spain
Prior art keywords
feed
controlling
load range
forced circulation
steam generators
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES406840A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer AG
Original Assignee
Gebrueder Sulzer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Publication of ES406840A1 publication Critical patent/ES406840A1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00—Control systems for steam boilers
    • F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
    • F22B35/14—Control systems for steam boilers for steam boilers of forced-flow type during the starting-up periods, i.e. during the periods between the lighting of the furnaces and the attainment of the normal operating temperature of the steam boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00—Control systems for steam boilers
    • F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
    • F22B35/10—Control systems for steam boilers for steam boilers of forced-flow type of once-through type
    • F22B35/101—Control systems for steam boilers for steam boilers of forced-flow type of once-through type operating with superimposed recirculation during starting or low load periods, e.g. composite boilers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

The rate of feedwater flow is controlled in a first load range by the level of water in the separator while in a higher load range the rate is controlled by the steam temperature. Signals are produced which are compared with preset values and are integrated so as to produce a negative control signal in one case and a positive control signal in the other case. Only one of these control signals is superimposed on a base signal only when the generator is in a respective load range so as to produce a command signal for adjusting the feed controller of the feed valve.
ES406840A 1971-09-24 1972-09-19 Method of controlling the feed of forced circulation steam generators Expired ES406840A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1396871A CH532750A (en) 1971-09-24 1971-09-24 Method for regulating the feed of a once-through steam generator

Publications (1)

Publication Number Publication Date
ES406840A1 true ES406840A1 (en) 1975-11-16

Family

ID=4396839

Family Applications (1)

Application Number Title Priority Date Filing Date
ES406840A Expired ES406840A1 (en) 1971-09-24 1972-09-19 Method of controlling the feed of forced circulation steam generators

Country Status (12)

Country Link
US (1) US3780705A (en)
JP (1) JPS539321B2 (en)
BE (1) BE788957A (en)
CA (1) CA963558A (en)
CH (1) CH532750A (en)
DE (1) DE2149127B1 (en)
ES (1) ES406840A1 (en)
FR (1) FR2154241A5 (en)
GB (1) GB1410181A (en)
IT (1) IT967803B (en)
NL (1) NL145342B (en)
SE (1) SE381504B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5094025A (en) * 1973-12-24 1975-07-26
JPS5193926A (en) * 1975-02-15 1976-08-18
JPS5236173A (en) * 1975-09-17 1977-03-19 Takasaki Paper Mfg Process for manufacturing tile assemblage mainly from wood pulp
US4242989A (en) * 1979-05-14 1981-01-06 General Electric Company Boiler level control system
JPS55180102U (en) * 1979-06-09 1980-12-24
US4345438A (en) * 1980-09-02 1982-08-24 General Electric Company Deaerator level control
US4424186A (en) * 1981-03-02 1984-01-03 Westinghouse Electric Corp. Power generation
JPS5869437U (en) * 1981-11-02 1983-05-11 株式会社イナックス tile
JPH0686922B2 (en) * 1984-08-17 1994-11-02 株式会社日立製作所 Boiler drum level controller
TW212826B (en) * 1991-11-28 1993-09-11 Sulzer Ag
DE19536391A1 (en) * 1995-09-29 1997-04-03 Siemens Ag Container filling level regulation device
US7418960B2 (en) * 2004-09-30 2008-09-02 Premark Feg Llc Steam cooker and related superheater
US7353821B2 (en) * 2004-11-24 2008-04-08 Premark Feg L.L.C. Steam oven system having steam generator with controlled fill process
EP2119880A1 (en) 2008-02-15 2009-11-18 Siemens Aktiengesellschaft Method for starting a steam producer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042007A (en) * 1958-07-28 1962-07-03 Beckman Instruments Inc Boiler controller
US3244898A (en) * 1959-12-29 1966-04-05 Combustion Eng Power plant system and control therefor
US3215126A (en) * 1960-12-19 1965-11-02 Babcock & Wilcox Co Once-through vapor generator
CH467973A (en) * 1966-12-30 1969-01-31 Sulzer Ag Forced steam generator

Also Published As

Publication number Publication date
NL7114443A (en) 1973-03-27
CH532750A (en) 1973-01-15
CA963558A (en) 1975-02-25
FR2154241A5 (en) 1973-05-04
NL145342B (en) 1975-03-17
BE788957A (en) 1973-03-19
GB1410181A (en) 1975-10-15
JPS539321B2 (en) 1978-04-05
IT967803B (en) 1974-03-11
US3780705A (en) 1973-12-25
DE2149127B1 (en) 1972-11-09
SE381504B (en) 1975-12-08
JPS4839801A (en) 1973-06-12

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