AU570120B2 - Surge control system in dewatering press felts - Google Patents

Surge control system in dewatering press felts

Info

Publication number
AU570120B2
AU570120B2 AU43895/85A AU4389585A AU570120B2 AU 570120 B2 AU570120 B2 AU 570120B2 AU 43895/85 A AU43895/85 A AU 43895/85A AU 4389585 A AU4389585 A AU 4389585A AU 570120 B2 AU570120 B2 AU 570120B2
Authority
AU
Australia
Prior art keywords
surge
control system
press felts
dewatering press
surge control
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.)
Ceased
Application number
AU43895/85A
Other versions
AU4389585A (en
Inventor
Phillip L. Adamczyk
Joseph A. Bolton
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.)
Albany International Corp
Original Assignee
Albany International 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 Albany International Corp filed Critical Albany International Corp
Publication of AU4389585A publication Critical patent/AU4389585A/en
Application granted granted Critical
Publication of AU570120B2 publication Critical patent/AU570120B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/12—Drying
    • 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
    • F04D27/009—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by bleeding, by passing or recycling fluid
    • 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
    • F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/01—Purpose of the control system
    • F05D2270/10—Purpose of the control system to cope with, or avoid, compressor flow instabilities

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Control Of Eletrric Generators (AREA)
  • Measuring Volume Flow (AREA)
  • Centrifugal Separators (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Filtration Of Liquid (AREA)
  • Drying Of Solid Materials (AREA)
  • Buffer Packaging (AREA)
  • Making Paper Articles (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

A surge control system for dewatering press felts on a papermaking machine which includes a suction pipe (12), a variable speed drive motor (38), a centrifugal exhauster (26) driven by the variable speed drive motor and connected to the suction pipe to provide vacuum to a felt (14) passing over a slot (18) for dewatering thereof. A surge valve (28) is provided and is opened to admit air to the centrifugal exhauster (26) so as to prevent surge when the centrifugal exhauster is operating at a predetermined level at which the centrifugal exhauster will surge.
AU43895/85A 1984-10-26 1985-06-20 Surge control system in dewatering press felts Ceased AU570120B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66502684A 1984-10-26 1984-10-26
US665026 2000-09-19

Publications (2)

Publication Number Publication Date
AU4389585A AU4389585A (en) 1986-05-01
AU570120B2 true AU570120B2 (en) 1988-03-03

Family

ID=24668408

Family Applications (1)

Application Number Title Priority Date Filing Date
AU43895/85A Ceased AU570120B2 (en) 1984-10-26 1985-06-20 Surge control system in dewatering press felts

Country Status (10)

Country Link
EP (1) EP0179658B1 (en)
JP (1) JPS61108790A (en)
KR (1) KR920000753B1 (en)
AT (1) ATE43377T1 (en)
AU (1) AU570120B2 (en)
CA (1) CA1251673A (en)
DE (1) DE3570470D1 (en)
FI (1) FI81147C (en)
NO (1) NO167219C (en)
ZA (1) ZA854989B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8961149B2 (en) 2010-07-19 2015-02-24 Runtech Systems Oy Method for controlling a regulated-rotation-speed low-pressure centrifugal fan
FI125258B (en) * 2010-07-19 2015-08-14 Runtech Systems Oy Method of controlling a vacuum centrifugal fan with adjustable rotational speed
CN102337558B (en) * 2011-11-03 2013-12-11 北京化工大学 Method for installing and sealing oxygen diffusion electrode of ionic membrane electrolytic cell

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308077A (en) * 1979-12-06 1981-12-29 Albany International Corp. Constant flow felt dewatering system
US4329201A (en) * 1979-12-06 1982-05-11 Albany International Corp. Constant vacuum felt dewatering system
US4398996A (en) * 1981-06-19 1983-08-16 Albany International Corp. Vacuum control system and method for dewatering fabrics

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4734896U (en) * 1971-05-08 1972-12-18
US4493608A (en) * 1982-12-27 1985-01-15 General Electric Company Surge control in compressor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308077A (en) * 1979-12-06 1981-12-29 Albany International Corp. Constant flow felt dewatering system
US4329201A (en) * 1979-12-06 1982-05-11 Albany International Corp. Constant vacuum felt dewatering system
US4398996A (en) * 1981-06-19 1983-08-16 Albany International Corp. Vacuum control system and method for dewatering fabrics

Also Published As

Publication number Publication date
JPH032992B2 (en) 1991-01-17
ZA854989B (en) 1986-05-28
CA1251673A (en) 1989-03-28
NO854284L (en) 1986-04-28
FI81147B (en) 1990-05-31
FI852589A0 (en) 1985-06-28
NO167219B (en) 1991-07-08
ATE43377T1 (en) 1989-06-15
EP0179658A2 (en) 1986-04-30
FI852589L (en) 1986-04-27
EP0179658A3 (en) 1987-01-28
NO167219C (en) 1991-10-16
EP0179658B1 (en) 1989-05-24
FI81147C (en) 1990-09-10
DE3570470D1 (en) 1989-06-29
JPS61108790A (en) 1986-05-27
KR920000753B1 (en) 1992-01-21
AU4389585A (en) 1986-05-01
KR860003385A (en) 1986-05-23

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