GB1209057A - A control arrangement for centrifugal compressors - Google Patents

A control arrangement for centrifugal compressors

Info

Publication number
GB1209057A
GB1209057A GB5395667A GB5395667A GB1209057A GB 1209057 A GB1209057 A GB 1209057A GB 5395667 A GB5395667 A GB 5395667A GB 5395667 A GB5395667 A GB 5395667A GB 1209057 A GB1209057 A GB 1209057A
Authority
GB
United Kingdom
Prior art keywords
pressure
control arrangement
inlet duct
centrifugal compressors
inlet
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
GB5395667A
Inventor
Umberto Filippini
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.)
Nuovo Pignone SpA
Original Assignee
Nuovo Pignone SpA
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 Nuovo Pignone SpA filed Critical Nuovo Pignone SpA
Priority to GB5395667A priority Critical patent/GB1209057A/en
Publication of GB1209057A publication Critical patent/GB1209057A/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
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids

Abstract

1,209,057. Fluid-pressure servomotor systems. NUOVO PIGNONE S.p.A. Nov. 27, 1967, No.53956/67. Heading G3P. [Also in Division F1] Surging is prevented in a centrifugal compressor 1 by adjusting a by-pass or vent valve 4 so that h / (P2 + b/a P1) # , a / #<SP>2</SP>#, where p1 is the pressure in the inlet duct 2, p2 is the outlet pressure, h is the pressure drop across an orifice plate 5 having a co-efficient of discharge #, # is the polytropic head divided by the square of the flow-rate in the inlet duct, and a and b are the slope and intercept of the line C at the normal value # of the compression ratio in the relationship Y = n/n-1 (# n-1/n - 1), n being the compression index. The valve is operated by a regulator 12 connected to the inlet and outlet ducts through pressure transmitters 6, 7, 8 and computers 9, 10, 11.
GB5395667A 1967-11-27 1967-11-27 A control arrangement for centrifugal compressors Expired GB1209057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5395667A GB1209057A (en) 1967-11-27 1967-11-27 A control arrangement for centrifugal compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5395667A GB1209057A (en) 1967-11-27 1967-11-27 A control arrangement for centrifugal compressors

Publications (1)

Publication Number Publication Date
GB1209057A true GB1209057A (en) 1970-10-14

Family

ID=10469518

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5395667A Expired GB1209057A (en) 1967-11-27 1967-11-27 A control arrangement for centrifugal compressors

Country Status (1)

Country Link
GB (1) GB1209057A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175445A1 (en) * 1984-08-20 1986-03-26 International Control Automation Finance S.A. Compressor surge control
US5195875A (en) * 1991-12-05 1993-03-23 Dresser-Rand Company Antisurge control system for compressors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175445A1 (en) * 1984-08-20 1986-03-26 International Control Automation Finance S.A. Compressor surge control
US5195875A (en) * 1991-12-05 1993-03-23 Dresser-Rand Company Antisurge control system for compressors

Similar Documents

Publication Publication Date Title
GB1022489A (en) Jacks with damping means
GB1383490A (en) Pumps
GB1349899A (en) Pressure regulating systems
GB1180582A (en) Cabin Air Flow Control System
GB1211788A (en) An improved fuel flow proportioner
GB1267310A (en) Hydraulic circuit breaker
GB1042713A (en) Method and apparatus for the protection of a centrifugal compressor
GB1250395A (en)
GB994856A (en) Improvements in or relating to air conditioning systems
GB1080013A (en) Improvements in or relating to mass flow measuring apparatus
GB1101166A (en) Fluid pressure regulator
GB1360615A (en) Fluid flow control apparatus
GB1209057A (en) A control arrangement for centrifugal compressors
US2922431A (en) Fluid flow control system
GB1371899A (en) Fluid flow valves
GB1304620A (en)
SE7506901L (en) PRESSURE REGULATOR FOR FLOWING MEDIA.
GB1331383A (en) Apparatus for controlling a turbo compressor
GB1408394A (en) Gas supply apparatus
GB836955A (en) Pressure ratio regulating system
GB1138752A (en) Improvements in and relating to hydraulic fuel control
GB1175194A (en) A Controller With Proportional Feedback and Reset.
GB1192965A (en) Improvements in Fluidics
GB1428887A (en) Pneumatic transducer for converting mechanical displacement of responsive element into pneumatic signal
US3021670A (en) Mach number control device

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee