ES473382A1 - A METHOD OF CONTROLLING A REFRIGERATION SYSTEM - Google Patents

A METHOD OF CONTROLLING A REFRIGERATION SYSTEM

Info

Publication number
ES473382A1
ES473382A1 ES473382A ES473382A ES473382A1 ES 473382 A1 ES473382 A1 ES 473382A1 ES 473382 A ES473382 A ES 473382A ES 473382 A ES473382 A ES 473382A ES 473382 A1 ES473382 A1 ES 473382A1
Authority
ES
Spain
Prior art keywords
signal
compressor
speed
guide vanes
motor
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
ES473382A
Other languages
Spanish (es)
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.)
Borg Warner Corp
Original Assignee
Borg Warner Corp
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
Priority claimed from US05/816,428 external-priority patent/US4151725A/en
Application filed by Borg Warner Corp filed Critical Borg Warner Corp
Publication of ES473382A1 publication Critical patent/ES473382A1/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
    • F04D27/0261—Surge control by varying driving speed
    • 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
    • F04D27/0284—Conjoint control of two or more different functions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

Un método de controlar un sistema de refrigeración que tiene un compresor, un condensador y evaporador, todos conectados en un circuito de refrigeración cerrado, cuyo compresor incluye álabes de guía de entrada o admisión ajustables para variar la capacidad del compresor, y un motor eléctrico de velocidad ajustables, conectado para accionar el compresor, de tal manera que el ajuste de la velocidad del motor hace variar también la capacidad que comprende las operaciones de: establecer continuamente una señal de altura hidrostática del compresor como una función de las temperaturas de condensación y evaporación del refrigerante, obtener una señal funcional relacionada con la posición instantánea de los álabes de guía de entrada, combinar la señal de indicación de altura o carga hidrostática y la señal funcional para producir una señal intermedia, proporciona una señal relacionada con la velocidad real del motor, combinar la señal de velocidad real de motor y la señal intermedia para proporcionar una primera señal para utilizar en la regulación de la velocidad del motor de accionamiento del compresor, y obtener o deducir una señal de error de temperatura, relacionada con la diferencia de temperaturas entre el medio de enfriamiento a la salida del evaporador y el punto ajustado de temperatura deseada, y emplear la señal de error de temperatura como una segunda señal para utilizar en la regulación de la velocidad del motor de accionamiento del compresor y la posición de los álabes de guía de entrada.A method of controlling a refrigeration system that has a compressor, a condenser, and an evaporator, all connected in a closed refrigeration circuit, the compressor of which includes adjustable inlet or intake guide vanes to vary the capacity of the compressor, and an electric motor of adjustable speeds, connected to drive the compressor, in such a way that adjusting the motor speed also varies the capacity comprising the operations of: continuously setting a compressor hydrostatic head signal as a function of condensation and evaporation temperatures of the coolant, obtain a functional signal related to the instantaneous position of the inlet guide vanes, combine the height or hydrostatic head indication signal and the functional signal to produce an intermediate signal, provides a signal related to the actual engine speed , combine the actual motor speed signal and the intermediate signal to prop provide a first signal to be used in regulating the speed of the compressor drive motor, and obtain or deduce a temperature error signal, related to the temperature difference between the cooling medium at the outlet of the evaporator and the set point desired temperature, and use the temperature error signal as a second signal to be used in regulating the speed of the compressor drive motor and the position of the inlet guide vanes.

ES473382A 1977-07-18 1978-09-15 A METHOD OF CONTROLLING A REFRIGERATION SYSTEM Expired ES473382A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/816,428 US4151725A (en) 1977-05-09 1977-07-18 Control system for regulating large capacity rotating machinery

Publications (1)

Publication Number Publication Date
ES473382A1 true ES473382A1 (en) 1979-06-01

Family

ID=25220580

Family Applications (2)

Application Number Title Priority Date Filing Date
ES469558A Expired ES469558A1 (en) 1977-07-18 1978-05-08 A PERFECTED CONTROL SYSTEM FOR A REFRIGERATION SYSTEM
ES473382A Expired ES473382A1 (en) 1977-07-18 1978-09-15 A METHOD OF CONTROLLING A REFRIGERATION SYSTEM

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES469558A Expired ES469558A1 (en) 1977-07-18 1978-05-08 A PERFECTED CONTROL SYSTEM FOR A REFRIGERATION SYSTEM

Country Status (7)

Country Link
BR (1) BR7802894A (en)
CH (1) CH624475A5 (en)
ES (2) ES469558A1 (en)
IN (1) IN149589B (en)
IT (1) IT1095059B (en)
SU (1) SU1075995A3 (en)
ZA (1) ZA782307B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017129224A1 (en) * 2016-01-25 2017-08-03 Bitzer Kühlmaschinenbau Gmbh Method for controlling a compressor system

Also Published As

Publication number Publication date
ES469558A1 (en) 1979-01-01
ZA782307B (en) 1979-11-28
BR7802894A (en) 1979-03-20
CH624475A5 (en) 1981-07-31
SU1075995A3 (en) 1984-02-23
IN149589B (en) 1982-02-06
IT7822885A0 (en) 1978-04-28
IT1095059B (en) 1985-08-10

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971103