GB844185A - Improvements in or relating to boiler feed pump installations - Google Patents

Improvements in or relating to boiler feed pump installations

Info

Publication number
GB844185A
GB844185A GB3918657A GB3918657A GB844185A GB 844185 A GB844185 A GB 844185A GB 3918657 A GB3918657 A GB 3918657A GB 3918657 A GB3918657 A GB 3918657A GB 844185 A GB844185 A GB 844185A
Authority
GB
United Kingdom
Prior art keywords
pump
deaerator
valve
pressure
extraction
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
GB3918657A
Inventor
Forrest Thomson Randell
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.)
Weir Group PLC
Original Assignee
G&J Weir 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 G&J Weir Ltd filed Critical G&J Weir Ltd
Priority to GB3918657A priority Critical patent/GB844185A/en
Publication of GB844185A publication Critical patent/GB844185A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D11/00—Feed-water supply not provided for in other main groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0063—Regulation, control including valves and floats
    • 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
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/02—Arrangements or modifications of condensate or air pumps
    • F01K9/023—Control thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D11/00—Feed-water supply not provided for in other main groups
    • F22D11/02—Arrangements of feed-water pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

844,185. Feedwater supply systems for steam boilers. WEIR Ltd., G. & J. Dec. 16, 1958 [Dec. 17, 1957], No. 39186/57. Class 123(2) [Also in Group XXIX] In a boiler feed pump installation including in series a condenser 1, a condenser extraction pump 2, a deaerator 5 and a boiler feed pump 6 located below the deaerator, a non-return valve 11 in a bypass line 8 permits feed-water to by-pass the deaerator and flow direct from the extraction pump 2 to the feed pump 6 in the event of an abnormal loss of static head or vapour pressure occurring in the deaerator, this vapour pressure normally maintaining sufficient pressure at the suction of the feed pump 6 to prevent flow through the non-return valve, under the control of a regulating valve 12 intercalated in a branch steam line 13 to the deaerator which is controlled by means responsive to the pressure of water discharged by the extraction pump. The regulating valve 12 is actuated by a spring-loaded diaphragm 15, Fig. 2, which is subject to an actuating air pressure delivered through a restriction 23 and controlled by a hinged leak-off valve 28 which is responsive through a bellows 34 to the delivery pressure of the extraction' pump 2 via a conduit 33, in a sense to cause opening of the valve 12 on rising delivery pressure of this pump. The leak-off valve 12 is also responsive, in the opposite sense through a conduit 31 and bellows 30, to the vapour pressure in the deaerator. A booster pump 4 is fitted between the extraction pump 2 and the deaerator 5.
GB3918657A 1957-12-17 1957-12-17 Improvements in or relating to boiler feed pump installations Expired GB844185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3918657A GB844185A (en) 1957-12-17 1957-12-17 Improvements in or relating to boiler feed pump installations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3918657A GB844185A (en) 1957-12-17 1957-12-17 Improvements in or relating to boiler feed pump installations

Publications (1)

Publication Number Publication Date
GB844185A true GB844185A (en) 1960-08-10

Family

ID=10408160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3918657A Expired GB844185A (en) 1957-12-17 1957-12-17 Improvements in or relating to boiler feed pump installations

Country Status (1)

Country Link
GB (1) GB844185A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104132326A (en) * 2014-08-08 2014-11-05 中国电力工程顾问集团西南电力设计院 CFB boiler emergency water supplementing system without emergency water supplementing box
US20160075145A1 (en) * 2013-09-17 2016-03-17 Seiko Epson Corporation Liquid ejecting apparatus and liquid supply method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160075145A1 (en) * 2013-09-17 2016-03-17 Seiko Epson Corporation Liquid ejecting apparatus and liquid supply method
US9827779B2 (en) * 2013-09-17 2017-11-28 Seiko Epson Corporation Liquid ejecting apparatus and liquid supply method
CN104132326A (en) * 2014-08-08 2014-11-05 中国电力工程顾问集团西南电力设计院 CFB boiler emergency water supplementing system without emergency water supplementing box
CN104132326B (en) * 2014-08-08 2016-03-16 中国电力工程顾问集团西南电力设计院有限公司 A kind of CFB boiler emergency water compensating system without emergency water compensating case

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