GB1102168A - Improvements in or relating to forced-flow vapour generators - Google Patents

Improvements in or relating to forced-flow vapour generators

Info

Publication number
GB1102168A
GB1102168A GB44700/65A GB4470065A GB1102168A GB 1102168 A GB1102168 A GB 1102168A GB 44700/65 A GB44700/65 A GB 44700/65A GB 4470065 A GB4470065 A GB 4470065A GB 1102168 A GB1102168 A GB 1102168A
Authority
GB
United Kingdom
Prior art keywords
turbine
valve
flash tank
vapour
steam
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
GB44700/65A
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.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox Co
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 Babcock and Wilcox Co filed Critical Babcock and Wilcox Co
Publication of GB1102168A publication Critical patent/GB1102168A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F01K3/20—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by combustion gases of main boiler
    • F01K3/22—Controlling, e.g. starting, stopping
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Turbines (AREA)

Abstract

1,102,168. Steam turbine plant. BABCOCK & WILCOX CO. Oct. 21, 1965 [Oct. 22, 1964], No.44700/65. Heading F1T. [Also in Divisions F3-F4] A power plant comprises a condenser 31, pump 33, low-pressure heater 36, deaerator 37, feedpump 10, high-pressure feedwater heater 12, force flow once through vapour generator 14 including an economizer section 16, a vapour generating section 17 and a vapour superheater 18, and turbine 22 arranged in series in a closed circuit around which the working medium normally flows. On start up, a quarter full load waterflow is established through the circuitry to the vapour generating section 17, and then passes, since the turbine valves 44, 24, 25 are closed to flash tank 42. Valve 41 maintains full load pressure at the outlet of vapour generating section 17 throughout the start-up. Flash steam as it becomes available is passed to the turbine seal through conduit 59. Valve 44 in turbine by-pass 43 is then opened so that part of the fluid-flow from vapour generating section 17 passes through vapour superheating section 18 to the by-pass line 43, till predetermined conditions are reached when steam from the superheater under control of stop valve by-pass 25, together with saturated steam from flash tank 42 under control of valve 50 in conduit 55, is passed through valve 26 to roll turbine 22, at a pressure of about 50 psia. The turbine is then loaded to 5-10% full load by closing turbine by-pass valve 44, and to 20% full load by increasing the firing rate. Turbine control is then transferred from valve 25 to valve 26 causing check valve 60 in conduit 55 to close, whereupon valve 24 is opened wide and valves 25 and 41 close so all flows to and from flash tank 42 cease and the flash tank system pressure decays, normal turbine extraction flows being used for deaeration and feedwater heating. During the start-up any excess flash tank steam is discharged directly to the condenser 31. In modifications the turbine by-pass line from the superheater outlet may be routed through the flash tank, Fig. 2 (not shown) and a control valve may be incorporated between the superheater inlet and the conduit leading from the vapour generating section outlet to the flash tank.
GB44700/65A 1964-10-22 1965-10-21 Improvements in or relating to forced-flow vapour generators Expired GB1102168A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US405685A US3271961A (en) 1964-10-22 1964-10-22 Start-up system for forced flow vapor generator

Publications (1)

Publication Number Publication Date
GB1102168A true GB1102168A (en) 1968-02-07

Family

ID=23604769

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44700/65A Expired GB1102168A (en) 1964-10-22 1965-10-21 Improvements in or relating to forced-flow vapour generators

Country Status (6)

Country Link
US (1) US3271961A (en)
BE (1) BE671323A (en)
DK (1) DK114780B (en)
GB (1) GB1102168A (en)
NL (1) NL6513736A (en)
SE (1) SE316783B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111561360A (en) * 2020-05-09 2020-08-21 广西电网有限责任公司电力科学研究院 Method and system for testing operation area of cogeneration unit

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55116010A (en) * 1979-02-27 1980-09-06 Hitachi Ltd Method of controlling water level of steam condensation system
US4665706A (en) * 1981-05-12 1987-05-19 The Babcock & Wilcox Company Control system for variable pressure once-through boilers
US5390631A (en) * 1994-05-25 1995-02-21 The Babcock & Wilcox Company Use of single-lead and multi-lead ribbed tubing for sliding pressure once-through boilers
US7987675B2 (en) * 2008-10-30 2011-08-02 General Electric Company Provision for rapid warming of steam piping of a power plant
US9470112B2 (en) * 2014-11-13 2016-10-18 General Electric Company System and method for heat recovery and steam generation in combined cycle systems
CN105986845A (en) * 2015-02-15 2016-10-05 深圳市能源环保有限公司 Steam pipeline system of steam turbine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220193A (en) * 1961-01-06 1965-11-30 Gilbert Associates Devices for improving operating flexibility of steam-electric generating plants
US3175367A (en) * 1962-08-08 1965-03-30 Foster Wheeler Corp Forced flow vapor generating unit
GB1054222A (en) * 1964-01-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111561360A (en) * 2020-05-09 2020-08-21 广西电网有限责任公司电力科学研究院 Method and system for testing operation area of cogeneration unit

Also Published As

Publication number Publication date
DK114780B (en) 1969-08-04
SE316783B (en) 1969-11-03
NL6513736A (en) 1966-04-25
US3271961A (en) 1966-09-13
BE671323A (en) 1966-02-14

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