GB884294A - Improvements in and relating to steam turbine plants - Google Patents

Improvements in and relating to steam turbine plants

Info

Publication number
GB884294A
GB884294A GB2101057A GB2101057A GB884294A GB 884294 A GB884294 A GB 884294A GB 2101057 A GB2101057 A GB 2101057A GB 2101057 A GB2101057 A GB 2101057A GB 884294 A GB884294 A GB 884294A
Authority
GB
United Kingdom
Prior art keywords
cylinder
valves
interceptor
pressure
valve
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
GB2101057A
Inventor
John Caldwell
Henry Watson
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.)
English Electric Co Ltd
Original Assignee
English Electric 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB2101057A priority Critical patent/GB884294A/en
Publication of GB884294A publication Critical patent/GB884294A/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
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/22—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
    • F01K7/24—Control or safety means specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/006—Arrangements of brakes
    • 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
    • F01K9/04—Plants characterised by condensers arranged or modified to co-operate with the engines with dump valves to by-pass stages

Abstract

884,294. Steam turbine plant. ENGLISH ELECTRIC CO. Ltd. June 27, 1958 [July 3, 1957], No. 21010/57. Class 110 (3). A steam turbine having a dump valve provided between the control valve and the cylinder directly controlled by it, a reheater between the cylinder and the following cylinder of lower pressure and an interceptor valve between the reheater and lower pressure cylinder, has the control of the dump valve co-ordinated with that of the control and interceptor valves so that the dump valve is opened when these valves are closed. High-pressure steam is supplied through pipes P, stop valves S and throttle valves T to the high-pressure turbine cylinder H. The cylinder H discharges through a reheater R to an intermediate pressure cylinder I which exhausts through a divided flow low pressure cylinder L. Interceptor valves N and emergency interceptor valves E are located between the reheater R and the intermediate pressure cylinder I. A dump valve V is arranged in a branch D leading off the pipes P between the throttle valves T and high-pressure cylinder H. Upon a sudden increase of speed, the throttle valves T and interceptor valves N are closed and the dump valve V opened. At a predetermined pressure the valve V is arranged to reseat and so prevent air entering the cylinder H. When the interceptor valves N are closed the flow of steam through the cylinder H is reversed so that it acts as a braking torque on the rotor.
GB2101057A 1957-07-03 1957-07-03 Improvements in and relating to steam turbine plants Expired GB884294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2101057A GB884294A (en) 1957-07-03 1957-07-03 Improvements in and relating to steam turbine plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2101057A GB884294A (en) 1957-07-03 1957-07-03 Improvements in and relating to steam turbine plants

Publications (1)

Publication Number Publication Date
GB884294A true GB884294A (en) 1961-12-13

Family

ID=10155659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2101057A Expired GB884294A (en) 1957-07-03 1957-07-03 Improvements in and relating to steam turbine plants

Country Status (1)

Country Link
GB (1) GB884294A (en)

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