KR860003385A - Surge Control Device and Method - Google Patents

Surge Control Device and Method Download PDF

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Publication number
KR860003385A
KR860003385A KR1019850007594A KR850007594A KR860003385A KR 860003385 A KR860003385 A KR 860003385A KR 1019850007594 A KR1019850007594 A KR 1019850007594A KR 850007594 A KR850007594 A KR 850007594A KR 860003385 A KR860003385 A KR 860003385A
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KR
South Korea
Prior art keywords
surge
discharger
drive motor
centrifugal
speed
Prior art date
Application number
KR1019850007594A
Other languages
Korean (ko)
Other versions
KR920000753B1 (en
Inventor
에이. 볼론 죠셉 (외 1)
Original Assignee
윌리암 에이취. 더트
알바니 인터네셔날 코오포레이션
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.)
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Publication date
Application filed by 윌리암 에이취. 더트, 알바니 인터네셔날 코오포레이션 filed Critical 윌리암 에이취. 더트
Publication of KR860003385A publication Critical patent/KR860003385A/en
Application granted granted Critical
Publication of KR920000753B1 publication Critical patent/KR920000753B1/en

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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

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  • Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Paper (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Control Of Eletrric Generators (AREA)
  • Buffer Packaging (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Measuring Volume Flow (AREA)
  • Filtration Of Liquid (AREA)
  • Drying Of Solid Materials (AREA)
  • Centrifugal Separators (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.

Description

서지 제어장치 및 방법Surge Control Device and Method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 제지기의 단면도중 진공제어 시스템 부분의 개략도.1 is a schematic diagram of a vacuum control system portion of a cross-sectional view of a paper machine.

제2도는 특정한 변속 원심 배출기의 정형적인 동작 상태를 표시한 곡선도.2 is a curve diagram showing the typical operating state of a particular variable speed centrifugal ejector.

Claims (6)

흡입관, 변속 구동 모우터 그리고 원심 배출기가 장착된 제지기의 압출펠트를 탈수키 위한 서지제어 시스템으로, 상기 배출기는 변속 구동 모우터에 의하여 작동되며 개구부 위로 펠트를 통과시켜 탈수키 위한 진공 상태를 제공하는 흡입관에 연결되었고, 펠트의 투과성과 기류 수요가 감소하면 구동 모우터는 원심 배출기의 속도를 예정된 최대 속도까지 가속시키도록 하고, 제어 장치를 예정된 최대 속도에 도달하는 시기를 판단키 위하여 원심 배출기에 연결시키어 어느 때 예정된 부하가 구동 모우터에 걸려서 배출기가 어느 시점에서 최대 속도로 가동되어 서지상태가 일어나는가를 감시하기 위하여 구동모우터에 연결되었으며, 서지 밸브는 원심 배출기에 공기가 들어가도록 하는데, 상기 제어 장치는 서지 밸브에 연결되어 어느 시점에 원심 배출기가 예정된 최대 속도로 작동하고 구동 모우터는 예정된 부하가 걸리는지를 상기 서지밸브에 신호를 보내어 원심 배출기에 공기를 공급하여 원심 배출기가 서지 상태에 돌임하는 것을 방지토록 구성함을 특징으로 하는 서지 제어장치.A surge control system for dewatering the extruded felt of a paper machine equipped with a suction pipe, a shift drive motor and a centrifugal ejector, which is operated by a shift drive motor and passes a felt over the opening to provide a vacuum for dehydration. The permeability of the felt and the reduced airflow demand, the drive motor accelerates the speed of the centrifugal discharger to the maximum speed expected and connects the control device to the centrifugal discharger to determine when the maximum speed is reached. And when a predetermined load is applied to the drive motor, the discharger is connected to the drive motor to monitor at what point the maximum speed and surge condition occurs, and the surge valve allows air to enter the centrifugal discharger. The device is connected to a surge valve and at any point centrifugal discharge And the drive motor operates at a predetermined maximum speed and the drive motor signals the surge valve to determine whether a predetermined load is applied to supply the air to the centrifugal discharger to prevent the centrifugal discharger from turning into a surge condition. 제1항에 있어서, 제지장치의 흡입관에 압축 펠트를 사용한 서지 제어장치.The surge control device according to claim 1, wherein a compression felt is used for the suction pipe of the papermaking device. 제1항에 있어서, 변속 구동 모우터는 교류 모우터를 말하고, 제어장치는 수요전류, 주파수 모우터의 마력을 감시하여 그에 걸리는 부하를 감시하도록 함을 특징으로 하는 서지 제어장치.The surge control apparatus according to claim 1, wherein the variable speed drive motor refers to an alternating current motor, and the control unit monitors the horsepower of the demand current and the frequency motor to monitor the load applied thereto. 압축 펠트를 탈수하는 장치인 흡입관, 서지밸브, 변속구동모우터, 변속구동 모우터로 작동되는 원심배출기로 구성된 제지기에 있어서, 서지상태를 조절하는 방법으로 배출기는 진공시키기 위하여 흡입관에 연결되고 펠트를 탈수하기 위하여 흡입관의 개구부 위로 펠트를 통과시키고, 펠트의 투과성과 기류수요가 감소하면 구동모우터는 원심배출기의 속도를 증가시키는데, 에기에 개선된 방법으로, 배출기의 속도를 예정된 최대 속도로 제한하며 어느 시점에서 원심분리 배출기가 예정된 최대 속도로 되는 지 결정하며, 언제 예정된 부하가 구동 모우터에 걸려서 어느 시점에서 최대 속도로 원심배출기가 작동되어 서지상태가 되는지 감시하며, 상기 원심배출기가 예정된 최대 속도로 작동되고 구동모우터는 예정된 부하가 걸렸을 때 서지 밸브를 열어서 언심 배출기에 공기가 유입되도록 하여서 그 결과 원심 배출기가 서지상태가 되는 것을 방지하도록 함을 특징으로 하는 서지 제어방법.In the paper machine which consists of a suction pipe, a surge valve, a shift drive motor, and a centrifugal discharger operated by a shift drive motor, the discharger is connected to the suction pipe and vacuumed by controlling the surge state. Pass the felt over the opening of the suction pipe to dewater it, and as the permeability and airflow demand of the felt decreases, the driving motor increases the speed of the centrifugal discharger.In an improved way, the speed of the discharger is limited to the predetermined maximum speed. Determines at what point the centrifugal discharger reaches its maximum predetermined speed, monitors when the intended load is applied to the drive motor, at which point the centrifugal discharger is operating and in a surge condition, and the centrifugal discharger is at its maximum predetermined speed. Driven and the drive motor opens the surge valve when the A surge control method, characterized in that air is introduced into the thermal core discharger, thereby preventing the centrifugal discharger from entering a surge state. 제4항에 있어서, 교류 모우터를 구동 모우터로 사용하며 또 구동 모우터의 전류 수요, 주파수나 마력을 감시하여 부하를 감시하도록 함을 특징으로 하는 서지제어 방법.The surge control method according to claim 4, wherein the AC motor is used as the driving motor, and the load is monitored by monitoring the current demand, frequency or horsepower of the driving motor. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850007594A 1984-10-26 1985-10-15 Surge control system KR920000753B1 (en)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
KR860003385A true KR860003385A (en) 1986-05-23
KR920000753B1 KR920000753B1 (en) 1992-01-21

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ID=24668408

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850007594A KR920000753B1 (en) 1984-10-26 1985-10-15 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

Family Cites Families (5)

* 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
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
EP0179658A3 (en) 1987-01-28
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
FI852589A0 (en) 1985-06-28
NO167219B (en) 1991-07-08
KR920000753B1 (en) 1992-01-21

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