GB849641A - Improvements in or relating to speed controlling apparatus for steam turbines - Google Patents

Improvements in or relating to speed controlling apparatus for steam turbines

Info

Publication number
GB849641A
GB849641A GB1771958A GB1771958A GB849641A GB 849641 A GB849641 A GB 849641A GB 1771958 A GB1771958 A GB 1771958A GB 1771958 A GB1771958 A GB 1771958A GB 849641 A GB849641 A GB 849641A
Authority
GB
United Kingdom
Prior art keywords
cylinder
valve
governor
spring
piston
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
GB1771958A
Inventor
Elof Malmvik
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.)
Jonkopings Mekaniska Werkstads AB
Original Assignee
Jonkopings Mekaniska Werkstads AB
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 Jonkopings Mekaniska Werkstads AB filed Critical Jonkopings Mekaniska Werkstads AB
Priority to GB1771958A priority Critical patent/GB849641A/en
Publication of GB849641A publication Critical patent/GB849641A/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
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Abstract

849,641. Governor transmitting mechanisms; turbines. JONKOPINGS MEKANISKA WERKSTADS A.B. June 3, 1958, No. 17719/58. Classes 57 and 110 (3). Apparatus for reducing the speed of a steam turbine from its normal speed maintained by a governor-controlled regulating valve 2 comprises an hydraulic piston 15 and cylinder 16 fitted to the valve body 1 and operable by liquid supplied from a remote control pump through a pipe connection 24 to the cylinder 16 to override the governor control and move the valve 2 towards its closed position. A centrifugal governor (not shown) is connected by linkage at 8 to a regulating lever 9 pivoted at 10 and having a spherical end 12 engaging an elongated slot 5 in the valve stem head 4, a spring 13 normally keeping the end 12 in contact with the lower end 6 of the slot so that the valve is controlled by the governor. The piston 15 is pressed upwards against a light spring 22 by a stronger spring 19 and has a rod 14 extending through the cylinder 16. The control pump, Fig. 2 (not shown), comprises a spring-loaded piston movable in a cylinder by a screw provided with a handwheel to pump oil to or from the cylinder 16 through channel 23. When it is desired to reduce the turbine speed, the control pump is actuated manually to supply oil to the cylinder 16, the consequent downward movement of the piston 15 causing the rod 14 to first engage the head 4, as shown in Fig. 1, and then move the valve 2 towards the closed position; the governor control then being ineffective and the valve regulated hydraulically. The downward limit of the rod 14 is set by a shoulder 25 thereon that abuts an adjustable bush 26.
GB1771958A 1958-06-03 1958-06-03 Improvements in or relating to speed controlling apparatus for steam turbines Expired GB849641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1771958A GB849641A (en) 1958-06-03 1958-06-03 Improvements in or relating to speed controlling apparatus for steam turbines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1771958A GB849641A (en) 1958-06-03 1958-06-03 Improvements in or relating to speed controlling apparatus for steam turbines

Publications (1)

Publication Number Publication Date
GB849641A true GB849641A (en) 1960-09-28

Family

ID=10100034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1771958A Expired GB849641A (en) 1958-06-03 1958-06-03 Improvements in or relating to speed controlling apparatus for steam turbines

Country Status (1)

Country Link
GB (1) GB849641A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104061026A (en) * 2014-06-18 2014-09-24 上海电气电站设备有限公司 Connecting structure between cylinder and valve of steam turbine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104061026A (en) * 2014-06-18 2014-09-24 上海电气电站设备有限公司 Connecting structure between cylinder and valve of steam turbine
CN104061026B (en) * 2014-06-18 2015-11-18 上海电气电站设备有限公司 Linkage structure between steam turbine and valve

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