SE9600546L - Suspension pump with built-in vacuum pump - Google Patents

Suspension pump with built-in vacuum pump

Info

Publication number
SE9600546L
SE9600546L SE9600546A SE9600546A SE9600546L SE 9600546 L SE9600546 L SE 9600546L SE 9600546 A SE9600546 A SE 9600546A SE 9600546 A SE9600546 A SE 9600546A SE 9600546 L SE9600546 L SE 9600546L
Authority
SE
Sweden
Prior art keywords
pump
operating positions
outlet
ring
volumes
Prior art date
Application number
SE9600546A
Other languages
Swedish (sv)
Other versions
SE515577C2 (en
SE9600546D0 (en
Inventor
Ronny Hoeglund
Original Assignee
Kvaerner Pulping Tech
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 Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Priority to SE9600546A priority Critical patent/SE515577C2/en
Publication of SE9600546D0 publication Critical patent/SE9600546D0/en
Publication of SE9600546L publication Critical patent/SE9600546L/en
Publication of SE515577C2 publication Critical patent/SE515577C2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/26—De-aeration of paper stock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • F04D9/041—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock the priming pump having evacuating action

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

The pump housing (1) has inlet (2) and outlet (3), a shaft (4) with axis (5), a fluidising rotor (15) and gas evacuation pump (23) with housing (24) including cylindrical chamber (25) and second impeller (26). The chamber contains a liquid ring (29) and is defined by an element (40) movable in relation to the second impeller. An actuator (48,50,51,59) moves the element to adjust it into different operating positions dependent on operating conditions. The operating conditions comprising first eccentric operating positions for axis of rotation of liquid ring in which blade pockets (28) together with the ring enclose volumes of gas decreasing in the direction to the outlet (36). In the second eccentric operating positions, the blade pockets and ring enclose volumes of gas increasing in the direction to the outlet and in third operating positions the blade pockets and ring enclose constant volumes.
SE9600546A 1996-02-15 1996-02-15 Suspension pump with built-in vacuum pump SE515577C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9600546A SE515577C2 (en) 1996-02-15 1996-02-15 Suspension pump with built-in vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9600546A SE515577C2 (en) 1996-02-15 1996-02-15 Suspension pump with built-in vacuum pump

Publications (3)

Publication Number Publication Date
SE9600546D0 SE9600546D0 (en) 1996-02-15
SE9600546L true SE9600546L (en) 1996-02-15
SE515577C2 SE515577C2 (en) 2001-09-03

Family

ID=20401392

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9600546A SE515577C2 (en) 1996-02-15 1996-02-15 Suspension pump with built-in vacuum pump

Country Status (1)

Country Link
SE (1) SE515577C2 (en)

Also Published As

Publication number Publication date
SE515577C2 (en) 2001-09-03
SE9600546D0 (en) 1996-02-15

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Legal Events

Date Code Title Description
CANC Patent cancelled, revoked after opposition
NUG Patent has lapsed