EP3140600A4 - Sensor for coil defrost in a refrigeration system evaporator - Google Patents

Sensor for coil defrost in a refrigeration system evaporator Download PDF

Info

Publication number
EP3140600A4
EP3140600A4 EP15788701.9A EP15788701A EP3140600A4 EP 3140600 A4 EP3140600 A4 EP 3140600A4 EP 15788701 A EP15788701 A EP 15788701A EP 3140600 A4 EP3140600 A4 EP 3140600A4
Authority
EP
European Patent Office
Prior art keywords
sensor
refrigeration system
system evaporator
coil defrost
defrost
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.)
Withdrawn
Application number
EP15788701.9A
Other languages
German (de)
French (fr)
Other versions
EP3140600A1 (en
Inventor
Greg DEROSIER
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.)
Evapco Inc
Original Assignee
Evapco 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 Evapco Inc filed Critical Evapco Inc
Priority claimed from PCT/US2015/029528 external-priority patent/WO2015171809A1/en
Publication of EP3140600A1 publication Critical patent/EP3140600A1/en
Publication of EP3140600A4 publication Critical patent/EP3140600A4/en
Withdrawn legal-status Critical Current

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/02—Detecting the presence of frost or condensate
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • 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
    • F25B2700/11—Sensor to detect if defrost is necessary
    • 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
    • F25B2700/13—Mass flow of refrigerants
    • F25B2700/135—Mass flow of refrigerants through the evaporator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/226—Construction of measuring vessels; Electrodes therefor

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)
  • Defrosting Systems (AREA)
EP15788701.9A 2014-05-06 2015-05-06 Sensor for coil defrost in a refrigeration system evaporator Withdrawn EP3140600A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461989080P 2014-05-06 2014-05-06
PCT/US2015/029528 WO2015171809A1 (en) 2014-05-06 2015-05-06 Sensor for coil defrost in a refrigeration system evaporator

Publications (2)

Publication Number Publication Date
EP3140600A1 EP3140600A1 (en) 2017-03-15
EP3140600A4 true EP3140600A4 (en) 2017-12-20

Family

ID=57957780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15788701.9A Withdrawn EP3140600A4 (en) 2014-05-06 2015-05-06 Sensor for coil defrost in a refrigeration system evaporator

Country Status (1)

Country Link
EP (1) EP3140600A4 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5612545A (en) * 1979-07-12 1981-02-06 Mitsubishi Electric Corp Detector for detecting state of refrigerant
JPS5612967A (en) * 1979-07-13 1981-02-07 Mitsubishi Electric Corp Controller for heat pump apparatus
JPS6246166A (en) * 1985-08-21 1987-02-28 株式会社日立製作所 Refrostation control method of air conditioner
US20090267619A1 (en) * 2008-04-25 2009-10-29 Fluid Well Instruments B.V. Device and method for measuring an electrical property of a fluid flowing through a pipe
CN101694340A (en) * 2009-10-16 2010-04-14 上海爱控自动化设备有限公司 Method for judging starting point of defrosting and refrigerating system for intelligent defrosting
US20130291568A1 (en) * 2010-11-12 2013-11-07 Hb Porducts A/S System or method for measuring the phase of refrigerant in a cooling system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5612545A (en) * 1979-07-12 1981-02-06 Mitsubishi Electric Corp Detector for detecting state of refrigerant
JPS5612967A (en) * 1979-07-13 1981-02-07 Mitsubishi Electric Corp Controller for heat pump apparatus
JPS6246166A (en) * 1985-08-21 1987-02-28 株式会社日立製作所 Refrostation control method of air conditioner
US20090267619A1 (en) * 2008-04-25 2009-10-29 Fluid Well Instruments B.V. Device and method for measuring an electrical property of a fluid flowing through a pipe
CN101694340A (en) * 2009-10-16 2010-04-14 上海爱控自动化设备有限公司 Method for judging starting point of defrosting and refrigerating system for intelligent defrosting
US20130291568A1 (en) * 2010-11-12 2013-11-07 Hb Porducts A/S System or method for measuring the phase of refrigerant in a cooling system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2015171809A1 *

Also Published As

Publication number Publication date
EP3140600A1 (en) 2017-03-15

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