GB1195260A - Forced Through-Flow Steam Generator and Method of Starting the Same - Google Patents
Forced Through-Flow Steam Generator and Method of Starting the SameInfo
- Publication number
- GB1195260A GB1195260A GB51632/67A GB5163267A GB1195260A GB 1195260 A GB1195260 A GB 1195260A GB 51632/67 A GB51632/67 A GB 51632/67A GB 5163267 A GB5163267 A GB 5163267A GB 1195260 A GB1195260 A GB 1195260A
- Authority
- GB
- United Kingdom
- Prior art keywords
- forced
- deaerator
- pass
- fluid
- flow
- 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
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
- F22B35/08—Control systems for steam boilers for steam boilers of forced-flow type of forced-circulation type
- F22B35/083—Control systems for steam boilers for steam boilers of forced-flow type of forced-circulation type without drum, i.e. without hot water storage in the boiler
-
- 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
- F22B29/00—Steam boilers of forced-flow type
- F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
- F22B29/12—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes operating with superimposed recirculation during starting and low-load periods, e.g. composite boilers
Abstract
1,195,260. Forced flow steam boilers. COMBUSTION ENG. Inc. 13 Nov., 1967 [12 Dec., 1966], No. 51632/67. Heading F4A. During start-up of a forced through-flow boiler with partial recirculation, throttle valves BT, BE are closed and the increase in volume of the heated working fluid is relieved through a by-pass 44 leading from a point between the feedwater heater 28 and economizer 30 to a point, such as the deaerator 26, in the low pressure part of the feed circuit. Throttle valves 46 and throttling orifices or capillary devices 48 are arranged so that the pressure drop thereacross does not produce flashing until the fluid reaches the deaerator 26. One valve 46 may be controlled by the passage at the inlet to economizer 30. At a later stage of start-up, the valve BE is opened to allow the fluid from the evaporator 32 to flow to a separator 36, the water from which is returned to condenser 20 whilst the steam flows through pipe 37 to the superheater 34. In Fig. 2 the high pressure feed pump 18 is provided with a return by-pass 54 leading back to deaerator 26 and the pipe 58 relieving the excess fluid during start-up is connected to the by-pass 54.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US600905A US3370573A (en) | 1966-12-12 | 1966-12-12 | Start-up system for combined circulation steam generator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1195260A true GB1195260A (en) | 1970-06-17 |
Family
ID=24405539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB51632/67A Expired GB1195260A (en) | 1966-12-12 | 1967-11-13 | Forced Through-Flow Steam Generator and Method of Starting the Same |
Country Status (9)
Country | Link |
---|---|
US (1) | US3370573A (en) |
BE (1) | BE707074A (en) |
CH (1) | CH485984A (en) |
DE (1) | DE1576862B2 (en) |
ES (1) | ES347912A1 (en) |
FR (1) | FR1554796A (en) |
GB (1) | GB1195260A (en) |
NL (1) | NL6716498A (en) |
SE (1) | SE318893B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3774579A (en) * | 1971-02-17 | 1973-11-27 | Hitachi Ltd | Method and apparatus for restarting boiler feed-water pump system |
US3972193A (en) * | 1975-01-02 | 1976-08-03 | Foster Wheeler Energy Corporation | Integral separator start-up system for a vapor generator with constant pressure furnace circuitry |
DE2758278C2 (en) * | 1977-12-27 | 1986-05-28 | Kraftwerk Union AG, 4330 Mülheim | Method for improving the permissible load change rate of a once-through steam generator and device for carrying out this method |
JPS5835304A (en) * | 1981-08-28 | 1983-03-02 | 株式会社日立製作所 | Method and device for warming high-pressure feedwater heater |
US5048466A (en) * | 1990-11-15 | 1991-09-17 | The Babcock & Wilcox Company | Supercritical pressure boiler with separator and recirculating pump for cycling service |
US5474034A (en) * | 1993-10-08 | 1995-12-12 | Pyropower Corporation | Supercritical steam pressurized circulating fluidized bed boiler |
DE19544226B4 (en) * | 1995-11-28 | 2007-03-29 | Alstom | Combined plant with multi-pressure boiler |
US6918254B2 (en) * | 2003-10-01 | 2005-07-19 | The Aerospace Corporation | Superheater capillary two-phase thermodynamic power conversion cycle system |
US9696027B2 (en) * | 2009-12-21 | 2017-07-04 | General Electric Technology Gmbh | Economizer water recirculation system for boiler exit gas temperature control in supercritical pressure boilers |
WO2014133869A1 (en) * | 2013-03-01 | 2014-09-04 | Conocophillips Company | Throttling boiler for fouling mitigation |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH371813A (en) * | 1959-10-16 | 1963-09-15 | Sulzer Ag | Steam power plant |
US3194218A (en) * | 1963-03-25 | 1965-07-13 | Combustion Eng | Apparatus and method for starting forced flow once-through steam generating power plant |
-
1966
- 1966-12-12 US US600905A patent/US3370573A/en not_active Expired - Lifetime
-
1967
- 1967-11-13 GB GB51632/67A patent/GB1195260A/en not_active Expired
- 1967-11-24 FR FR1554796D patent/FR1554796A/fr not_active Expired
- 1967-11-24 BE BE707074D patent/BE707074A/xx unknown
- 1967-11-24 SE SE16195/67A patent/SE318893B/xx unknown
- 1967-11-27 DE DE19671576862 patent/DE1576862B2/en active Pending
- 1967-11-29 CH CH1674267A patent/CH485984A/en not_active IP Right Cessation
- 1967-12-02 ES ES347912A patent/ES347912A1/en not_active Expired
- 1967-12-04 NL NL6716498A patent/NL6716498A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR1554796A (en) | 1969-01-24 |
BE707074A (en) | 1968-05-24 |
US3370573A (en) | 1968-02-27 |
DE1576862B2 (en) | 1971-09-23 |
SE318893B (en) | 1969-12-22 |
NL6716498A (en) | 1968-06-13 |
CH485984A (en) | 1970-02-15 |
ES347912A1 (en) | 1969-06-01 |
DE1576862A1 (en) | 1970-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |