FR2374542A1 - Systeme de commande de ventilateur a pas variable a flux axial pour chaudiere de service - Google Patents

Systeme de commande de ventilateur a pas variable a flux axial pour chaudiere de service

Info

Publication number
FR2374542A1
FR2374542A1 FR7738088A FR7738088A FR2374542A1 FR 2374542 A1 FR2374542 A1 FR 2374542A1 FR 7738088 A FR7738088 A FR 7738088A FR 7738088 A FR7738088 A FR 7738088A FR 2374542 A1 FR2374542 A1 FR 2374542A1
Authority
FR
France
Prior art keywords
control system
pressure rise
pitch
signal
axial flow
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.)
Withdrawn
Application number
FR7738088A
Other languages
English (en)
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of FR2374542A1 publication Critical patent/FR2374542A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable
    • F04D29/362—Blade mountings adjustable during rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air Supply (AREA)

Abstract

L'invention concerne un système de commande pour un ventilateur à flux axial ayant des aubes à pas variables. Ce système comprend : un dispositif pour faire varier le pas des aubes; un dispositif pour détecter une élévation de pression à la traversée du ventilateur et pour générer un signal en fonction de cette élévation de pression; un dispositif pour détecter le débit d'air dans ce système de circulation d'air et pour émettre un signal en fonction de ce débit; un dispositif pour intégrer le signal d'élévation de pression et le signal de débit d'air pour produire un signal de sortie correspondant à une élévation de pression et à un débit d'air présents; un dispositif pour amener ces signaux, destinés à provoquer une augmentation ou une diminution du pas des aubes, au dispositif pour faire varier le pas des aubes, en marche normale. Application à la régulation des chaudières de service.
FR7738088A 1976-12-16 1977-12-16 Systeme de commande de ventilateur a pas variable a flux axial pour chaudiere de service Withdrawn FR2374542A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/751,404 US4135854A (en) 1976-12-16 1976-12-16 Control system for variable pitch axial fan for utility boiler

Publications (1)

Publication Number Publication Date
FR2374542A1 true FR2374542A1 (fr) 1978-07-13

Family

ID=25021829

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7738088A Withdrawn FR2374542A1 (fr) 1976-12-16 1977-12-16 Systeme de commande de ventilateur a pas variable a flux axial pour chaudiere de service

Country Status (9)

Country Link
US (1) US4135854A (fr)
JP (1) JPS5376431A (fr)
AU (1) AU517192B2 (fr)
ES (1) ES465011A1 (fr)
FR (1) FR2374542A1 (fr)
GB (1) GB1597172A (fr)
IN (1) IN149718B (fr)
IT (1) IT1092629B (fr)
ZA (1) ZA776851B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557216A1 (fr) * 1983-12-23 1985-06-28 Voith Gmbh Procede de regulation antipompage des ventilateurs helicoides

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6328051B1 (en) * 2000-06-28 2001-12-11 Mks Instruments, Inc. Dual pendulum valve assembly
US7008184B2 (en) * 2002-08-14 2006-03-07 Bettencourt Jr Harold Ray Control for cooling fan
US6729844B2 (en) * 2002-08-14 2004-05-04 Harold Ray Bettencourt Controller for variable pitch fan system
US8814639B1 (en) * 2008-10-29 2014-08-26 Climatecraft Technologies, Inc. Fan system comprising fan array with surge control
US10527047B2 (en) 2017-01-25 2020-01-07 Energy Labs, Inc. Active stall prevention in centrifugal fans
CN110985429A (zh) * 2019-12-17 2020-04-10 浙江浙能技术研究院有限公司 一种检测及消除风机失速的控制装置及方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2202793A (en) * 1939-04-06 1940-05-28 B F Sturtevant Co Fan system
US2407925A (en) * 1943-03-27 1946-09-17 Chrysler Corp Apparatus for comparing pressures
US2409837A (en) * 1944-04-21 1946-10-22 Gen Electric Centrifugal type compressor
DE2155311A1 (de) * 1971-11-06 1973-05-10 Daimler Benz Ag Vorrichtung zur steuerung eines turbokompressors
US3744925A (en) * 1970-06-23 1973-07-10 Bbc Brown Boveri & Cie Apparatus for regulating a turbo-compressor
FR2163919A5 (fr) * 1971-12-07 1973-07-27 Onera (Off Nat Aerospatiale)
US4102604A (en) * 1977-05-04 1978-07-25 Compressor Controls Corporation Method and apparatus for noninteracting control of a dynamic compressor having rotating vanes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661145A (en) * 1947-03-11 1953-12-01 Guardite Corp Antisurge control for refrigeration compressors
US2477954A (en) * 1947-04-01 1949-08-02 Blanc Jacques Jean Louis Gas turbine
GB674657A (en) * 1950-02-21 1952-06-25 Nordisk Ventilator Improvements in and relating to blowers with axial exhaust
DE1019046B (de) * 1954-09-09 1957-11-07 Demag Ag Klemmvorrichtung zur stufenlosen Festlegung von hydraulisch verstellbaren Propellerfluegeln fuer Axialverdichter
US2938536A (en) * 1957-10-29 1960-05-31 Honeywell Regulator Co Controller
US3292845A (en) * 1963-03-06 1966-12-20 Shell Oil Co Method for preventing surging of compressors
JPS5199307A (ja) * 1975-02-27 1976-09-01 Sumitomo Metal Ind Sofukinosaajinguboshisochi

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2202793A (en) * 1939-04-06 1940-05-28 B F Sturtevant Co Fan system
US2407925A (en) * 1943-03-27 1946-09-17 Chrysler Corp Apparatus for comparing pressures
US2409837A (en) * 1944-04-21 1946-10-22 Gen Electric Centrifugal type compressor
US3744925A (en) * 1970-06-23 1973-07-10 Bbc Brown Boveri & Cie Apparatus for regulating a turbo-compressor
DE2155311A1 (de) * 1971-11-06 1973-05-10 Daimler Benz Ag Vorrichtung zur steuerung eines turbokompressors
FR2163919A5 (fr) * 1971-12-07 1973-07-27 Onera (Off Nat Aerospatiale)
US4102604A (en) * 1977-05-04 1978-07-25 Compressor Controls Corporation Method and apparatus for noninteracting control of a dynamic compressor having rotating vanes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557216A1 (fr) * 1983-12-23 1985-06-28 Voith Gmbh Procede de regulation antipompage des ventilateurs helicoides

Also Published As

Publication number Publication date
AU3141677A (en) 1979-06-14
US4135854A (en) 1979-01-23
ES465011A1 (es) 1979-06-01
GB1597172A (en) 1981-09-03
JPS5376431A (en) 1978-07-06
IN149718B (fr) 1982-03-27
IT1092629B (it) 1985-07-12
AU517192B2 (en) 1981-07-16
ZA776851B (en) 1978-09-27

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
DI Inadmissibility of an action of restoration