EP0179658A3 - Surge control system - Google Patents

Surge control system Download PDF

Info

Publication number
EP0179658A3
EP0179658A3 EP85307666A EP85307666A EP0179658A3 EP 0179658 A3 EP0179658 A3 EP 0179658A3 EP 85307666 A EP85307666 A EP 85307666A EP 85307666 A EP85307666 A EP 85307666A EP 0179658 A3 EP0179658 A3 EP 0179658A3
Authority
EP
European Patent Office
Prior art keywords
surge
control system
centrifugal exhauster
drive motor
suction pipe
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.)
Granted
Application number
EP85307666A
Other versions
EP0179658B1 (en
EP0179658A2 (en
Inventor
Joseph A. Bolton
Phillip L. Adamczyk
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
Priority to AT85307666T priority Critical patent/ATE43377T1/en
Publication of EP0179658A2 publication Critical patent/EP0179658A2/en
Publication of EP0179658A3 publication Critical patent/EP0179658A3/en
Application granted granted Critical
Publication of EP0179658B1 publication Critical patent/EP0179658B1/en
Expired 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)
  • Medicines Containing Plant Substances (AREA)
  • Measuring Volume Flow (AREA)
  • Buffer Packaging (AREA)
  • Centrifugal Separators (AREA)
  • Drying Of Solid Materials (AREA)
  • Filtration Of Liquid (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Making Paper Articles (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.
EP85307666A 1984-10-26 1985-10-24 Surge control system Expired EP0179658B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85307666T ATE43377T1 (en) 1984-10-26 1985-10-24 VACUUM MONITORING SYSTEM.

Applications Claiming Priority (2)

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

Publications (3)

Publication Number Publication Date
EP0179658A2 EP0179658A2 (en) 1986-04-30
EP0179658A3 true EP0179658A3 (en) 1987-01-28
EP0179658B1 EP0179658B1 (en) 1989-05-24

Family

ID=24668408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85307666A Expired EP0179658B1 (en) 1984-10-26 1985-10-24 Surge control system

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
FI125258B (en) * 2010-07-19 2015-08-14 Runtech Systems Oy Method of controlling a vacuum centrifugal fan with adjustable rotational speed
US8961149B2 (en) 2010-07-19 2015-02-24 Runtech Systems Oy Method for controlling a regulated-rotation-speed low-pressure centrifugal fan
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398996A (en) * 1981-06-19 1983-08-16 Albany International Corp. Vacuum control system and method for dewatering fabrics
US4493608A (en) * 1982-12-27 1985-01-15 General Electric Company Surge control in compressor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4734896U (en) * 1971-05-08 1972-12-18
US4329201A (en) * 1979-12-06 1982-05-11 Albany International Corp. Constant vacuum felt dewatering system
US4308077A (en) * 1979-12-06 1981-12-29 Albany International Corp. Constant flow felt dewatering system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398996A (en) * 1981-06-19 1983-08-16 Albany International Corp. Vacuum control system and method for dewatering fabrics
US4493608A (en) * 1982-12-27 1985-01-15 General Electric Company Surge control in compressor

Also Published As

Publication number Publication date
JPH032992B2 (en) 1991-01-17
CA1251673A (en) 1989-03-28
AU570120B2 (en) 1988-03-03
ATE43377T1 (en) 1989-06-15
NO167219C (en) 1991-10-16
DE3570470D1 (en) 1989-06-29
FI81147C (en) 1990-09-10
EP0179658B1 (en) 1989-05-24
NO854284L (en) 1986-04-28
EP0179658A2 (en) 1986-04-30
FI81147B (en) 1990-05-31
AU4389585A (en) 1986-05-01
FI852589L (en) 1986-04-27
ZA854989B (en) 1986-05-28
JPS61108790A (en) 1986-05-27
KR860003385A (en) 1986-05-23
FI852589A0 (en) 1985-06-28
NO167219B (en) 1991-07-08
KR920000753B1 (en) 1992-01-21

Similar Documents

Publication Publication Date Title
US4329201A (en) Constant vacuum felt dewatering system
CA1170092A (en) Vacuum control system for dewatering fabrics
SE8900329D0 (en) ALL DRY SUBMERSIBLE ENGINE PUMP WITH A CONCORDANT SEAL SYSTEM
EP0287670A4 (en) Driving control apparatus for hydraulic construction machines.
DE3570470D1 (en) Surge control system
AU3945797A (en) Improved performance centrifugal blower apparatus including at least two suction inlets, and associated blower method
US4308077A (en) Constant flow felt dewatering system
EP0268303A3 (en) Attaching arrangement
CA2084203A1 (en) Beating apparatus for fibre suspensions
EP0763625A3 (en) Apparatus in a papermaking machine for transferring a fluid from a first level to a second, higher level
JPS5623147A (en) Sheet clamper
MX9704902A (en) Direction control apparatus for condenser fan.
JPS5534116A (en) Aeration device
ES2123328T3 (en) FLUID SEPARATOR FOR DENTAL EQUIPMENT.
EP0475535B1 (en) Device for transporting paper, such as in the shape of sheets, in printing presses, bookbinding machines and such like
GB2101365A (en) Vacuum control system and method for dewatering a web of paper
EP0258525A3 (en) Vacuum dewatering installation
SU967819A2 (en) Dust receptacle to belt-grinding machine
FR2655746B1 (en) METHOD FOR CONTROLLING AN AUTOMATIC DRAWING MACHINE OF THE TYPE IN WHICH THE PAPER IS DRAWN.
ES1016267U (en) Washing machine pump water circulation centrifugal type. (Machine-translation by Google Translate, not legally binding)
EP0792397A1 (en) Method for dewatering in paper manufacture
JPS5648339A (en) Automatic paper feeding system
Hansen Water Management for the Single Wire Machine.
EP0243072A3 (en) Engine speed governor
AU567379B2 (en) Method for compressing fibre cement sheets

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19870324

17Q First examination report despatched

Effective date: 19880408

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 43377

Country of ref document: AT

Date of ref document: 19890615

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

REF Corresponds to:

Ref document number: 3570470

Country of ref document: DE

Date of ref document: 19890629

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19891031

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19900917

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19900918

Year of fee payment: 6

Ref country code: CH

Payment date: 19900918

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19900919

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19900921

Year of fee payment: 6

Ref country code: LU

Payment date: 19900921

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19900926

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19901001

Year of fee payment: 6

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19901031

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19911024

Ref country code: AT

Effective date: 19911024

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19911025

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19911031

Ref country code: CH

Effective date: 19911031

Ref country code: BE

Effective date: 19911031

BERE Be: lapsed

Owner name: ALBANY INTERNATIONAL CORP.

Effective date: 19911031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920501

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 85307666.9

Effective date: 19920510