GB230114A - Arrangement of the dummy piston in steam extraction turbines - Google Patents

Arrangement of the dummy piston in steam extraction turbines

Info

Publication number
GB230114A
GB230114A GB5838/25A GB583825A GB230114A GB 230114 A GB230114 A GB 230114A GB 5838/25 A GB5838/25 A GB 5838/25A GB 583825 A GB583825 A GB 583825A GB 230114 A GB230114 A GB 230114A
Authority
GB
United Kingdom
Prior art keywords
pressure
stage
piston
extraction
dummy 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
GB5838/25A
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.)
BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri France 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 Brown Boveri und Cie AG Germany, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Germany
Publication of GB230114A publication Critical patent/GB230114A/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
    • F01D3/00—Machines or engines with axial-thrust balancing effected by working-fluid
    • F01D3/04—Machines or engines with axial-thrust balancing effected by working-fluid axial thrust being compensated by thrust-balancing dummy piston or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

230,114. Akt.-Ges. Brown, Boveri, et Cie. March 3, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Balancing moving parts; regulating; motor power plant.-The steam space of the balancing piston of an extraction turbine is connected with the steam space in front of the low-pressure blading. A pipe L connects the pressure side D of the dummy piston A with the steam space N of the low-pressure section which receives steam from the extraction chamber E through a transfer valve. A packing piston K is situated between the piston and the chamber E. In the construction shown in Fig. 2 the extraction stage E is supplied in parallel with a stage H which is connected with a low-pressure stage N by a conduit U by-passing the stage E, and in this case the dummy piston is open to the pressure in the stage H. By the invention leakage past the dummy piston is reduced with decreasing load on the turbine although the extraction pressure is constant.
GB5838/25A 1924-03-03 1925-03-03 Arrangement of the dummy piston in steam extraction turbines Expired GB230114A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE230114X 1924-03-03

Publications (1)

Publication Number Publication Date
GB230114A true GB230114A (en) 1925-12-31

Family

ID=5868708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5838/25A Expired GB230114A (en) 1924-03-03 1925-03-03 Arrangement of the dummy piston in steam extraction turbines

Country Status (1)

Country Link
GB (1) GB230114A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2436880A1 (en) * 2010-09-30 2012-04-04 Alstom Technology Ltd Method of modifying a steam turbine
CN114278384A (en) * 2021-12-15 2022-04-05 东方电气集团东方汽轮机有限公司 Adjustable steam extraction type steam turbine axial thrust balancing structure and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2436880A1 (en) * 2010-09-30 2012-04-04 Alstom Technology Ltd Method of modifying a steam turbine
CN102444426A (en) * 2010-09-30 2012-05-09 阿尔斯通技术有限公司 Method of modifying a steam turbine
US8821107B2 (en) 2010-09-30 2014-09-02 Alstom Technology Ltd Method of modifying a steam turbine
RU2538983C2 (en) * 2010-09-30 2015-01-10 Альстом Текнолоджи Лтд Steam turbine readjustment method
EP2436880B1 (en) 2010-09-30 2015-04-22 Alstom Technology Ltd Method of modifying a steam turbine
CN102444426B (en) * 2010-09-30 2015-05-27 阿尔斯通技术有限公司 Method of modifying a steam turbine
CN114278384A (en) * 2021-12-15 2022-04-05 东方电气集团东方汽轮机有限公司 Adjustable steam extraction type steam turbine axial thrust balancing structure and method
CN114278384B (en) * 2021-12-15 2023-08-01 东方电气集团东方汽轮机有限公司 Axial thrust balancing structure and method for adjustable extraction steam turbine

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