FR2345679A1 - Heat pump for drying bulk material - recuperates heat from refrigerant condenser and cold air flows through evaporator and subcooler - Google Patents

Heat pump for drying bulk material - recuperates heat from refrigerant condenser and cold air flows through evaporator and subcooler

Info

Publication number
FR2345679A1
FR2345679A1 FR7609756A FR7609756A FR2345679A1 FR 2345679 A1 FR2345679 A1 FR 2345679A1 FR 7609756 A FR7609756 A FR 7609756A FR 7609756 A FR7609756 A FR 7609756A FR 2345679 A1 FR2345679 A1 FR 2345679A1
Authority
FR
France
Prior art keywords
evaporator
heat
subcooler
cold air
air flows
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.)
Granted
Application number
FR7609756A
Other languages
French (fr)
Other versions
FR2345679B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7609756A priority Critical patent/FR2345679A1/en
Publication of FR2345679A1 publication Critical patent/FR2345679A1/en
Application granted granted Critical
Publication of FR2345679B1 publication Critical patent/FR2345679B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08—Humidity
    • F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
    • F26B23/005—Heating arrangements using waste heat recovered from dryer exhaust gases using a closed cycle heat pump system ; using a heat pipe system
    • 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]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

A heat pump which can be used to recuperate heat for drying material such as wood or other hydroscopic material has an evaporator operating in a heat exchange condition in an air circulating circuit, which includes the material to be dried. Refrigerant passing through it, enters a compressor then a first condenser followed by another condenser with the air flowing through it and heated by it. The liquid refrigerant is collected by a tank before it is passed to a sub cooler in series with the evaporator. This sub cooler and the evaporator are in series with the air flow. The heat is recuperated from the condenser and used to dry the material and the cool wet air first flows through the evaporator then the sub cooler.
FR7609756A 1976-03-26 1976-03-26 Heat pump for drying bulk material - recuperates heat from refrigerant condenser and cold air flows through evaporator and subcooler Granted FR2345679A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7609756A FR2345679A1 (en) 1976-03-26 1976-03-26 Heat pump for drying bulk material - recuperates heat from refrigerant condenser and cold air flows through evaporator and subcooler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7609756A FR2345679A1 (en) 1976-03-26 1976-03-26 Heat pump for drying bulk material - recuperates heat from refrigerant condenser and cold air flows through evaporator and subcooler

Publications (2)

Publication Number Publication Date
FR2345679A1 true FR2345679A1 (en) 1977-10-21
FR2345679B1 FR2345679B1 (en) 1978-09-01

Family

ID=9171355

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7609756A Granted FR2345679A1 (en) 1976-03-26 1976-03-26 Heat pump for drying bulk material - recuperates heat from refrigerant condenser and cold air flows through evaporator and subcooler

Country Status (1)

Country Link
FR (1) FR2345679A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419472A1 (en) * 1978-03-08 1979-10-05 Ciat Sa Heating system for swimming pool - has air treated by heat pump with some flow by=passed around evaporator with total flow passing over condenser
FR2439371A1 (en) * 1978-10-16 1980-05-16 Airgel Power economiser for heat pump or refrigeration circuit - uses pre-cooler having gas phase with different entropies at same temp. and condensing at evaporation temp.
FR2549209A1 (en) * 1983-06-22 1985-01-18 Linde Ag Fluid circuit for refrigerating plant
WO1986002432A1 (en) * 1984-10-18 1986-04-24 Sc Glasoltherm Thermo-electric micro-unit
EP0408152A1 (en) * 1989-07-11 1991-01-16 Fri-Jado B.V. Humidifying cooling element
SG90011A1 (en) * 1995-08-30 2002-07-23 Carrier Corp High latent refrigerant control circuit for air conditioning system
EP1258692A1 (en) * 2001-05-17 2002-11-20 F.J. Pirie & Company Limited Crop dryer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LIVRE US: "HEAT PUMPS AND ELECTRIC HEATING", 1966 PAR E.R. AMBROSE, EDITE PAR J. WILLEY & SONS, NEW YORK) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419472A1 (en) * 1978-03-08 1979-10-05 Ciat Sa Heating system for swimming pool - has air treated by heat pump with some flow by=passed around evaporator with total flow passing over condenser
FR2439371A1 (en) * 1978-10-16 1980-05-16 Airgel Power economiser for heat pump or refrigeration circuit - uses pre-cooler having gas phase with different entropies at same temp. and condensing at evaporation temp.
FR2549209A1 (en) * 1983-06-22 1985-01-18 Linde Ag Fluid circuit for refrigerating plant
WO1986002432A1 (en) * 1984-10-18 1986-04-24 Sc Glasoltherm Thermo-electric micro-unit
FR2572169A1 (en) * 1984-10-18 1986-04-25 Armines MICROCENTRAL THERMOELECTRIC
EP0408152A1 (en) * 1989-07-11 1991-01-16 Fri-Jado B.V. Humidifying cooling element
SG90011A1 (en) * 1995-08-30 2002-07-23 Carrier Corp High latent refrigerant control circuit for air conditioning system
EP1258692A1 (en) * 2001-05-17 2002-11-20 F.J. Pirie & Company Limited Crop dryer

Also Published As

Publication number Publication date
FR2345679B1 (en) 1978-09-01

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ST Notification of lapse