GB854320A - Improvements in or relating to multistage rotary compressors and pumps - Google Patents

Improvements in or relating to multistage rotary compressors and pumps

Info

Publication number
GB854320A
GB854320A GB25029/57A GB2502957A GB854320A GB 854320 A GB854320 A GB 854320A GB 25029/57 A GB25029/57 A GB 25029/57A GB 2502957 A GB2502957 A GB 2502957A GB 854320 A GB854320 A GB 854320A
Authority
GB
United Kingdom
Prior art keywords
flow
pumps
stages
relating
aug
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.)
Expired
Application number
GB25029/57A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB854320A publication Critical patent/GB854320A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F04D27/02—Surge control
    • F04D27/0269—Surge control by changing flow path between different stages or between a plurality of compressors; load distribution between compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0072—Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

854,320. Axial-flow and radial-flow compressors and pumps. BROWN, BOVERI & CIE A.G. Aug. 8, 1957 [Aug. 8, 1956], No. 25029/57. Class 110 (1). Equalizing pipes, such as 7a, 7b, 7c, are connected between corresponding stages of two or more multi-stage axial-flow, radial-flow or mixed-flow compressors or centrifugal pumps, coupled in parallel to a common delivery line 5, to ensure that the pressure rises in the corresponding stages remain equal throughout the working range. This prevents a return flow from one compressor or pump to the other when the delivery volume is low. Where there are a large number of stages, equalizing pipes may be provided only at, say, alternate stages.
GB25029/57A 1956-08-08 1957-08-08 Improvements in or relating to multistage rotary compressors and pumps Expired GB854320A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH854320X 1956-08-08

Publications (1)

Publication Number Publication Date
GB854320A true GB854320A (en) 1960-11-16

Family

ID=4542541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25029/57A Expired GB854320A (en) 1956-08-08 1957-08-08 Improvements in or relating to multistage rotary compressors and pumps

Country Status (1)

Country Link
GB (1) GB854320A (en)

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