GB1301315A – – Google Patents
GB1301315A – – Google Patents
Info
Publication number
GB1301315A
GB1301315A
GB1301315DA
GB1301315A
GB 1301315 A
GB1301315 A
GB 1301315A
GB 1301315D A
GB1301315D A
GB 1301315DA
GB 1301315 A
GB1301315 A
GB 1301315A
Authority
GB
United Kingdom
Prior art keywords
superheater
feedwater
steam
pipe
degasser
Prior art date
1969-09-23
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
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.)
1969-09-23
Filing date
1970-09-11
Publication date
1972-12-29
1970-09-11
Application filed
filed
Critical
1972-12-29
Publication of GB1301315A
publication
Critical
patent/GB1301315A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
Abstract
1301315 Protecting superheater tubes SULZER BROS Ltd 11 Sept 1970 [23 Sept 1969] 43633/70 Heading F4A When starting up steam generator 1 feedwater is pumped at 15 from degasser 16 to evaporator 4 and additionally through pipe 34 to superheater 5 at flow rates of approximately 15% and 35% respectively of full-load flow rate, thus ensuring that steam generation occurs in the evaporator before the superheater. The steam outlet valve 22 is closed and full working pressure is maintained by a device 32 through which the water returns via pipe 31 to degasser 16. The burner 6 is run at about 25% of full rate and when the working temperature is reached steam is generated in the evaporator 4 but is condensed in chamber 20 when it joins the feedwater entering the superheater from pipe 34. When the correct conditions are reached the superheater feedwater is cut off by valve 35 and device 32 is operated to rapidly release the pressure in the superheater through return line 31 causing intensive evaporation which effectively expels all the feedwater from the superheater. The firing rate and the feedwater supply are then increased and the working pressure raised by adjusting valve 32. In the operation of the embodiment shown, Fig. 1, steam is first passed via valve 22 through stage 23 of a turbine, then combined with the flue gases by mixer 25 and passed through stage 27 of the turbine. The turbine drives generator 9 and compressor 10 supplying air to burner 6. In a second embodiment, Fig. 2 (not shown), the chamber 20 is replaced by a condenser (40) and the feedwater to the superheater is supplied between this and the superheater, the condensate being returned through a pipe (41) to the degasser 16. In a third embodiment, Fig. 3 (not shown), the degasser is omitted and water is circulated between the condenser (40) and the evaporator 4 through pipe (42) by a pump (43). In addition the superheater is formed in two sections between which water is injected to control the temperature of the steam delivered by the second section.
GB1301315D
1969-09-23
1970-09-11
Expired
GB1301315A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
CH1432769A
CH513361A
(en)
1969-09-23
1969-09-23
Procedure for starting up a steam generator
Publications (1)
Publication Number
Publication Date
GB1301315A
true
GB1301315A
(en)
1972-12-29
Family
ID=4399871
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1301315D
Expired
GB1301315A
(en)
1969-09-23
1970-09-11
Country Status (9)
Country
Link
US
(1)
US3648667A
(en)
BE
(1)
BE756407A
(en)
CA
(1)
CA921347A
(en)
CH
(1)
CH513361A
(en)
DE
(1)
DE1950104A1
(en)
ES
(1)
ES383788A1
(en)
FR
(1)
FR2061239A5
(en)
GB
(1)
GB1301315A
(en)
NL
(1)
NL6915466A
(en)
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CH622332A5
(en)
*
1977-09-02
1981-03-31
Sulzer Ag
DE19504308C1
(en)
*
1995-02-09
1996-08-08
Siemens Ag
Method and device for starting a once-through steam generator
DE19717158C2
(en)
*
1997-04-23
1999-11-11
Siemens Ag
Continuous steam generator and method for starting up a continuous steam generator
DE102010040623A1
(en)
*
2010-09-13
2012-03-15
Siemens Aktiengesellschaft
Method for regulating a short-term increase in output of a steam turbine
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1299642B
(en)
*
1965-02-13
1969-07-24
Steinmueller Gmbh L & C
Procedure for starting up steam generators operated with forced flow
FR1508651A
(en)
*
1966-03-04
1968-01-05
Steinmueller Gmbh L & C
Method for using steam generator installations
0
BE
BE756407D
patent/BE756407A/en
unknown
1969
1969-09-23
CH
CH1432769A
patent/CH513361A/en
not_active
IP Right Cessation
1969-10-04
DE
DE19691950104
patent/DE1950104A1/en
active
Pending
1969-10-13
NL
NL6915466A
patent/NL6915466A/xx
unknown
1970
1970-08-10
CA
CA090345A
patent/CA921347A/en
not_active
Expired
1970-09-10
FR
FR7032885A
patent/FR2061239A5/fr
not_active
Expired
1970-09-11
US
US71437A
patent/US3648667A/en
not_active
Expired – Lifetime
1970-09-11
GB
GB1301315D
patent/GB1301315A/en
not_active
Expired
1970-09-19
ES
ES383788A
patent/ES383788A1/en
not_active
Expired
Also Published As
Publication number
Publication date
CH513361A
(en)
1971-09-30
ES383788A1
(en)
1973-05-01
CA921347A
(en)
1973-02-20
US3648667A
(en)
1972-03-14
DE1950104A1
(en)
1971-04-22
NL6915466A
(en)
1971-03-25
FR2061239A5
(en)
1971-06-18
BE756407A
(en)
1971-03-22
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Legal Events
Date
Code
Title
Description
1973-05-09
PS
Patent sealed [section 19, patents act 1949]
1977-04-06
PLNP
Patent lapsed through nonpayment of renewal fees
