ES280710A1 - Improvements in elastic-fluid turbines - Google Patents

Improvements in elastic-fluid turbines

Info

Publication number
ES280710A1
ES280710A1 ES0280710A ES280710A ES280710A1 ES 280710 A1 ES280710 A1 ES 280710A1 ES 0280710 A ES0280710 A ES 0280710A ES 280710 A ES280710 A ES 280710A ES 280710 A1 ES280710 A1 ES 280710A1
Authority
ES
Spain
Prior art keywords
steam
turbine
wheels
wheel
main
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
ES0280710A
Other languages
Spanish (es)
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.)
Cegelec SA
Original Assignee
Cegelec SA
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 Cegelec SA filed Critical Cegelec SA
Publication of ES280710A1 publication Critical patent/ES280710A1/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
    • F01D13/00—Combinations of two or more machines or engines
    • F01D13/006—Combinations of two or more machines or engines one being a reverse turbine
    • 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
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
    • F01D1/023—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines the working-fluid being divided into several separate flows ; several separate fluid flows being united in a single flow; the machine or engine having provision for two or more different possible fluid flow paths
    • 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
    • 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
    • F01D17/18—Final actuators arranged in stator parts varying effective number of nozzles or guide conduits, e.g. sequentially operable valves for steam turbines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Turbines (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

An elastic-fluid turbine, having a rotor with two bladed wheels for the first stage expansion, has separate inlets arranged to supply separate flows respectively to the two wheels, and a common passage arranged to receive the elastic-fluid from both wheels and direct it towards the inlet of a subsequent bladed wheel stage of the rotor. In an auxiliary steam turbine 1, for driving a boiler feed pump (not shown) of an electrical generating plant having an alternator driven by a main steam turbine (not shown), the rotor 2 has two first stage wheels 5 and 6 provided with inlet nozzle rings 3A and 4A respectively. The nozzle ring 3A is split into two segments angularly occupying approximately 240 degrees and 120 degrees respectively. During normal operation of the main steam turbine, primary steam, which is generally extracted partially expanded from a suitable point in the main turbine, is fed through an inlet 3, a control valve 8, Fig. 2 (not shown), and the larger segment of the nozzle ring 3A to the wheel 5 of the auxiliary turbine 1. When the load on the main turbine is reduced, a valve 10, Fig. 2 (not shown), is opened to admit additional quantities of primary steam to the auxiliary turbine 1 through the smaller segment of the nozzle ring 3A. Below half-load on the main turbine, secondary steam, at a higher pressure than the primary steam and comprising either live steam, desuperheated or not, or partially expanded steam from the main turbine, is admitted through an inlet 4, a control valve 12, Fig. 3 (not shown), and the nozzle ring 4A to the wheel 6. The steam exhausted from the wheel 6 flows in the direction of arrows 14 to join the steam exhausted from the wheel 5, the combined flow passing through stages 16 and 18 and other stages (not shown). Extraction points 15 and 17 and others (not shown) are provided. Steam extracted through point 15 is fed to a feed-water heater. One of the two wheels may be associated with an additional wheel or wheels supplied by the same source. The invention may be applied to the turbine of a turbine-alternator set, in which case the extraction points 15, 17 are omitted, the first-stage wheels 5 and 6 are of nearly equal diameters, the nozzle ring 3A may be divided into three segments and at full-load all the valves are open to admit live steam to the nozzles of both wheels.
ES0280710A 1961-11-17 1962-09-11 Improvements in elastic-fluid turbines Expired ES280710A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2292A FR1314454A (en) 1961-11-17 1961-11-17 Improvement in elastic fluid turbines

Publications (1)

Publication Number Publication Date
ES280710A1 true ES280710A1 (en) 1962-12-01

Family

ID=9696475

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0280710A Expired ES280710A1 (en) 1961-11-17 1962-09-11 Improvements in elastic-fluid turbines

Country Status (6)

Country Link
BE (1) BE623048A (en)
CH (1) CH391734A (en)
DE (1) DE1401459B2 (en)
ES (1) ES280710A1 (en)
FR (1) FR1314454A (en)
GB (1) GB1015174A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844681B1 (en) * 1978-10-13 1980-04-10 Blohm Voss Ag Withdrawal condensation turbine
DE102006009558A1 (en) * 2005-03-08 2006-09-21 Alstom Technology Ltd. Feed pump driving turbine
EP1930543A1 (en) * 2006-12-04 2008-06-11 Siemens Aktiengesellschaft Partial admission turbine
IT201800021292A1 (en) * 2018-12-28 2020-06-28 Turboden Spa AXIAL TURBINE WITH TWO POWER LEVELS

Also Published As

Publication number Publication date
CH391734A (en) 1965-05-15
GB1015174A (en) 1965-12-31
FR1314454A (en) 1963-01-11
DE1401459A1 (en) 1968-10-10
DE1401459B2 (en) 1971-01-21
BE623048A (en)

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