GB1422496A - Control valve electro-plating - Google Patents

Control valve electro-plating

Info

Publication number
GB1422496A
GB1422496A GB826374A GB826374A GB1422496A GB 1422496 A GB1422496 A GB 1422496A GB 826374 A GB826374 A GB 826374A GB 826374 A GB826374 A GB 826374A GB 1422496 A GB1422496 A GB 1422496A
Authority
GB
United Kingdom
Prior art keywords
plunger
boilers
feb
control valve
inlet
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
GB826374A
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.)
Nuovo Pignone SpA
Original Assignee
Nuovo Pignone SpA
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 Nuovo Pignone SpA filed Critical Nuovo Pignone SpA
Publication of GB1422496A publication Critical patent/GB1422496A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Check Valves (AREA)
  • Compressor (AREA)
  • Control Of Turbines (AREA)

Abstract

1422496 Boilers NUOVO PIGNONE SpA 22 Feb 1974 [23 Feb 1973] 8263/74 Heading F4A [Also in Division F2] A control valve for pressurizing once through boilers has a hollow plunger 22 reciprocable in a easing formed with an inlet 24, an outlet 25 and a seat 26 which co-operates with a sealing surface 30 on the plunger. In or downstream of the sealing surface 30 the plunger is formed with three axially-spaced circumferential rows of radial holes 31. The plunger is also formed with axial holes 32 in the tip 33 thereof. The upper open end of the plunger communicates with a pressure balancing chamber disposed about an actuating rod 34 which is moved by a servomotor. In use the valve is described in controlling flow in a thermoelectric plant from a steam generator 1 to a turbine 2 having one or two superheaters 3, 4 therebetween and one or two evaporator/flash tanks 6, 8 and a condenser 9 with associated valves in a by-pass for the steam generator. On movement of the plunger from closed position steam is first fed only via holes 31, 32 and the interior of the plunger, further opening movement allows flow directly from the inlet to the outlet.
GB826374A 1973-02-23 1974-02-22 Control valve electro-plating Expired GB1422496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2074673A IT984196B (en) 1973-02-23 1973-02-23 REGULATING VALVE

Publications (1)

Publication Number Publication Date
GB1422496A true GB1422496A (en) 1976-01-28

Family

ID=11171444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB826374A Expired GB1422496A (en) 1973-02-23 1974-02-22 Control valve electro-plating

Country Status (6)

Country Link
CH (1) CH583871A5 (en)
DE (1) DE2408678C3 (en)
ES (1) ES423849A1 (en)
FR (1) FR2219349B1 (en)
GB (1) GB1422496A (en)
IT (1) IT984196B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2410217A1 (en) * 2010-07-20 2012-01-25 Siemens Aktiengesellschaft Valve for a steam turbine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB250861A (en) * 1925-11-18 1926-04-22 Pasquale Pascale Improvements in or relating to steam valves
CH423389A (en) * 1964-12-07 1966-10-31 Bbc Brown Boveri & Cie Relieved single-seat valve
DE1500251A1 (en) * 1965-11-02 1970-09-03
US3703273A (en) * 1970-08-24 1972-11-21 Kieley & Mueller Low loss innervalve assembly
US3665964A (en) * 1971-01-27 1972-05-30 Westinghouse Electric Corp Steam turbine control valve structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2410217A1 (en) * 2010-07-20 2012-01-25 Siemens Aktiengesellschaft Valve for a steam turbine

Also Published As

Publication number Publication date
ES423849A1 (en) 1976-10-16
FR2219349B1 (en) 1977-09-23
DE2408678A1 (en) 1974-09-12
FR2219349A1 (en) 1974-09-20
DE2408678B2 (en) 1977-10-13
DE2408678C3 (en) 1983-11-17
CH583871A5 (en) 1977-01-14
IT984196B (en) 1974-11-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee