MX173557B - Metodo para iniciar el ciclo de descongelacion de un equipo de enfriamiento utilizado como calentador y aparato de control utilizado con el mismo - Google Patents

Metodo para iniciar el ciclo de descongelacion de un equipo de enfriamiento utilizado como calentador y aparato de control utilizado con el mismo

Info

Publication number
MX173557B
MX173557B MX012287A MX1228788A MX173557B MX 173557 B MX173557 B MX 173557B MX 012287 A MX012287 A MX 012287A MX 1228788 A MX1228788 A MX 1228788A MX 173557 B MX173557 B MX 173557B
Authority
MX
Mexico
Prior art keywords
temperature
heat exchanger
outdoor heat
defrost
heater
Prior art date
Application number
MX012287A
Other languages
English (en)
Inventor
Lee A White
Original Assignee
Ranco 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 Ranco Inc filed Critical Ranco Inc
Publication of MX173557B publication Critical patent/MX173557B/es

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/006—Defroster control with electronic control circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/031—Sensor arrangements
    • F25B2313/0315—Temperature sensors near the outdoor heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2106—Temperatures of fresh outdoor air

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air Conditioning Control Device (AREA)
  • Defrosting Systems (AREA)

Abstract

La presente invención se refiere a aparato de control de la descongelación de un equipo de enfriamiento utilizado como calentador, para usarse con un sistema de enfriamiento utilizado como calentador que tiene un intercambior de calor interior, un intercambiador de calor exterior, un compresor y un medio de control de flujo operable para invertir la dirección de flujo de un refrigerante a través de dichos intercambiadores de calor interior y exterior, bajo una condición de congelación detectada, dicho aparato de control está caracterizado por: primeros medios sensores o detectores de temperatura para sensar la temperatura del aire ambiental exterior en proximidad al intercambiador de calor exterior y segundos medios sensores de temperatura para detectar la temperatura del intercambiador de calor exterior; medios de almacenamiento para almacenar una temperatura habilitadora ajustable para ajustar la descongelación del sistema; un medio procesador para comparar la temperatura del intercambiador de calor exterior con la temperatura habilitadora ajustable y para asentar un indicador del estado si la temperatura del intercambiador de calor exterior es inferior a la temperatura habilitadora; un medio de control de la descongelación o desecarchado para operar el medio de control de flujo y descongelar el intercambiador de calor exterior, y dicho medio procesador tiene un elemento de cronómetro para monitorear el indicador del estado y activar el medio de control de la descongelación después de que el compresor ha trabajado un tiempo agregado mayor que un tiempo predeterminado después de que el indicador del estado ha sido asentdo, si un diferencial de temperatura sensado que existe entre la temperatura del intercambiador de calor exterior y la temperatura del aire ambiental exterior es mayor a un valkor determinado como una función de la temperatura del aire ambiental exterior sensada que corresponde a una condición de congelación sobre el intercambiador de calor exterior.
MX012287A 1987-07-17 1988-07-15 Metodo para iniciar el ciclo de descongelacion de un equipo de enfriamiento utilizado como calentador y aparato de control utilizado con el mismo MX173557B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/074,907 US4882908A (en) 1987-07-17 1987-07-17 Demand defrost control method and apparatus

Publications (1)

Publication Number Publication Date
MX173557B true MX173557B (es) 1994-03-16

Family

ID=22122366

Family Applications (1)

Application Number Title Priority Date Filing Date
MX012287A MX173557B (es) 1987-07-17 1988-07-15 Metodo para iniciar el ciclo de descongelacion de un equipo de enfriamiento utilizado como calentador y aparato de control utilizado con el mismo

Country Status (8)

Country Link
US (1) US4882908A (es)
EP (1) EP0299361B1 (es)
JP (1) JPS6463744A (es)
KR (1) KR890002622A (es)
CA (1) CA1325253C (es)
DE (1) DE3852524T2 (es)
ES (1) ES2064330T3 (es)
MX (1) MX173557B (es)

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Also Published As

Publication number Publication date
EP0299361B1 (en) 1994-12-21
DE3852524D1 (de) 1995-02-02
CA1325253C (en) 1993-12-14
EP0299361A2 (en) 1989-01-18
JPS6463744A (en) 1989-03-09
EP0299361A3 (en) 1991-07-03
KR890002622A (ko) 1989-04-11
ES2064330T3 (es) 1995-02-01
DE3852524T2 (de) 1995-05-24
US4882908A (en) 1989-11-28

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