FI912202A - Method and apparatus for controlling the vacuum plane of a dewatering element in a paper machine - Google Patents

Method and apparatus for controlling the vacuum plane of a dewatering element in a paper machine Download PDF

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Publication number
FI912202A
FI912202A FI912202A FI912202A FI912202A FI 912202 A FI912202 A FI 912202A FI 912202 A FI912202 A FI 912202A FI 912202 A FI912202 A FI 912202A FI 912202 A FI912202 A FI 912202A
Authority
FI
Finland
Prior art keywords
controlling
paper machine
dewatering element
liquid
suction support
Prior art date
Application number
FI912202A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI90443B (en
FI90443C (en
FI912202A0 (en
Inventor
Jaakko Kirjasniemi
Antti Suonperae
Original Assignee
Valmet Paper Machinery Inc
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 Valmet Paper Machinery Inc filed Critical Valmet Paper Machinery Inc
Priority to FI912202A priority Critical patent/FI90443C/en
Publication of FI912202A0 publication Critical patent/FI912202A0/en
Publication of FI912202A publication Critical patent/FI912202A/en
Publication of FI90443B publication Critical patent/FI90443B/en
Application granted granted Critical
Publication of FI90443C publication Critical patent/FI90443C/en

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Abstract

The invention concerns a method and arrangement for controlling the vacuum level in a drainage element of a paper machine. The drainage element 10a, 10b includes an underpressure space C above headbox 11, in which an underpressure is maintained by means of a suction support 12 formed by a liquid column, in which suction support 12 includes an upper surface 14a of a liquid N and a lower surface 14b that borders the water seal part of the liquid column. In the method the vacuum level of the underpressure space C of headbox 11 is regulated in the desired manner by controlling the level 14b on liquid surface of the lower water seal part of suction support 12. <IMAGE>
FI912202A 1991-05-07 1991-05-07 Method and apparatus for controlling the vacuum plane of a dewatering element in a paper machine FI90443C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI912202A FI90443C (en) 1991-05-07 1991-05-07 Method and apparatus for controlling the vacuum plane of a dewatering element in a paper machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI912202 1991-05-07
FI912202A FI90443C (en) 1991-05-07 1991-05-07 Method and apparatus for controlling the vacuum plane of a dewatering element in a paper machine

Publications (4)

Publication Number Publication Date
FI912202A0 FI912202A0 (en) 1991-05-07
FI912202A true FI912202A (en) 1992-11-08
FI90443B FI90443B (en) 1993-10-29
FI90443C FI90443C (en) 1994-02-10

Family

ID=8532461

Family Applications (1)

Application Number Title Priority Date Filing Date
FI912202A FI90443C (en) 1991-05-07 1991-05-07 Method and apparatus for controlling the vacuum plane of a dewatering element in a paper machine

Country Status (1)

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FI (1) FI90443C (en)

Also Published As

Publication number Publication date
FI90443B (en) 1993-10-29
FI90443C (en) 1994-02-10
FI912202A0 (en) 1991-05-07

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