GB1003618A - Improvements in or relating to steam generators - Google Patents

Improvements in or relating to steam generators

Info

Publication number
GB1003618A
GB1003618A GB4267263A GB4267263A GB1003618A GB 1003618 A GB1003618 A GB 1003618A GB 4267263 A GB4267263 A GB 4267263A GB 4267263 A GB4267263 A GB 4267263A GB 1003618 A GB1003618 A GB 1003618A
Authority
GB
United Kingdom
Prior art keywords
load
water
giving
stages
oct
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
GB4267263A
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.)
Mitsubishi Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsubishi Engineering and Shipbuilding Co Ltd
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 Mitsubishi Engineering and Shipbuilding Co Ltd filed Critical Mitsubishi Engineering and Shipbuilding Co Ltd
Publication of GB1003618A publication Critical patent/GB1003618A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

1,003,618. Injectors. MITSUBISHI SHIPBUILDING & ENGINEERING CO. Ltd. Oct. 29, 1963 [Oct. 30, 1962], No. 42672/63. Heading F1E. [Also in Division F4] ' In operation of a forced flow, once through steam generator below a predetermined value of load some water is driven through a recirculation circuit connected across furnace wall tubes 3 to increase the velocity of water passing through said tubes to prevent their burning, the water being driven round the circuit by a plurality of ejector stages in which stages water from pump 1 is forced through nozzles 9, 10. In the embodiment valves 12, 13 are responsive to the load conditions and may be selectively operable. The recirculating circuit is operative during starting and stopping conditions when the load is below a predetermined fraction of the maximum load, e.g. 30 %. On starting, once through water giving 10 % load and recirculating water giving 20 % load are used and the control valves 12, 13 actuated to obtain a hot start giving 5 % of maximum load. The ejector stages may be arranged in series (as shown) or parallel.
GB4267263A 1962-10-30 1963-10-29 Improvements in or relating to steam generators Expired GB1003618A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4804262 1962-10-30

Publications (1)

Publication Number Publication Date
GB1003618A true GB1003618A (en) 1965-09-08

Family

ID=12792250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4267263A Expired GB1003618A (en) 1962-10-30 1963-10-29 Improvements in or relating to steam generators

Country Status (2)

Country Link
CH (1) CH416676A (en)
GB (1) GB1003618A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402154A1 (en) * 1977-09-02 1979-03-30 Sulzer Ag FORCED CIRCULATION BOILER
DE3490578C2 (en) * 1983-12-06 1988-08-11 Vni Skij I Pki Atomnogo Energe Device for circulating boiler media
WO1997009565A2 (en) * 1995-09-08 1997-03-13 Deutsche Babcock Aktiengesellschaft Process and system for starting a continuous steam generator
WO2010114818A3 (en) * 2009-04-02 2012-07-05 Alstom Technology Ltd An ejector driven steam generator start up system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402154A1 (en) * 1977-09-02 1979-03-30 Sulzer Ag FORCED CIRCULATION BOILER
DE3490578C2 (en) * 1983-12-06 1988-08-11 Vni Skij I Pki Atomnogo Energe Device for circulating boiler media
WO1997009565A2 (en) * 1995-09-08 1997-03-13 Deutsche Babcock Aktiengesellschaft Process and system for starting a continuous steam generator
WO1997009565A3 (en) * 1995-09-08 1997-04-03 Siemens Ag Process and system for starting a continuous steam generator
WO2010114818A3 (en) * 2009-04-02 2012-07-05 Alstom Technology Ltd An ejector driven steam generator start up system

Also Published As

Publication number Publication date
CH416676A (en) 1966-07-15

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