US20070051126A1 - Air refrigerant type freezing and heating apparatus - Google Patents

Air refrigerant type freezing and heating apparatus Download PDF

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Publication number
US20070051126A1
US20070051126A1 US10/524,692 US52469204A US2007051126A1 US 20070051126 A1 US20070051126 A1 US 20070051126A1 US 52469204 A US52469204 A US 52469204A US 2007051126 A1 US2007051126 A1 US 2007051126A1
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Prior art keywords
air refrigerant
air
refrigerant
heat exchanger
outputted
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Abandoned
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US10/524,692
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Seiichi Okuda
Shigemitsu Kikuchi
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Mitsubishi Heavy Industries Ltd
International Center for Environmental Technology Transfer
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Mitsubishi Heavy Industries Ltd
International Center for Environmental Technology Transfer
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Priority to PCT/JP2004/017711 priority Critical patent/WO2006057056A1/en
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD, INTERNATIONAL CENTER FOR ENVIRONMENTAL TECHNOLOGY TRANSFER reassignment MITSUBISHI HEAVY INDUSTRIES, LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIKUCHI, SHIGEMITSU, OKUDA, SEIICHI
Publication of US20070051126A1 publication Critical patent/US20070051126A1/en
Application status is Abandoned legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B9/00Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/004Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00Domestic hot-water supply systems
    • F24D17/0005Domestic hot-water supply systems using recuperation of waste heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00Domestic hot-water supply systems
    • F24D17/0036Domestic hot-water supply systems with combination of different kinds of heating means
    • F24D17/0052Domestic hot-water supply systems with combination of different kinds of heating means recuperated waste heat and conventional heating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00Domestic hot-water supply systems
    • F24D17/0089Additional heating means, e.g. electric heated buffer tanks or electric continuous flow heaters, located close to the consumer, e.g. directly before the water taps in bathrooms, in domestic hot water lines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/16Waste heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B29/00Combined heating and refrigeration systems, e.g. operating alternately or simultaneously

Abstract

An object is to provide an apparatus which performs freezing and heating with a high efficiency. A compressor generates an air refrigerant with a high temperature and a high pressure by compressing the air refrigerant. As the air refrigerant is heated by a first heat exchanger and further heated by a heater, the temperature of the air refrigerant is increased to more than 200° C. in which bread and cookies can be baked, and the air refrigerant is supplied to an oven. Heat of the air refrigerant outputted from the oven is recovered by a second heat exchanger, and supplied to a high-temperature side of the first heat exchanger. The air outputted from the second heat exchanger is cooled by a cooler and a third heat exchanger, is adiabatically expanded by an expansion turbine to be cooled to −85° C., and is supplied to a freezer. The air of the freezer is recovered to be supplied to the low-temperature side of the third heat exchanger, and then is supplied to the compressor.

Description

    TECHNICAL FIELD
  • The present invention relates to an air refrigerant type freezing apparatus.
  • BACKGROUND ART
  • Recently, a cooling apparatus using the air as a refrigerant has been developed in place of a conventional cooling apparatus using chlorofluorocarbon as a refrigerant.
  • Japanese Laid Open Patent Application JP-A-Heisei 11-132582 discloses an air refrigerant type freezing apparatus having a compressor, an air cooler, an air-to-air heat exchanger, and an expansion unit arranged in an order of an air flow, taking air of a chamber required to be cooled into the compressor through the air-to-air heat exchanger, and blowing off the air outputted from the expansion unit into the chamber, characterized by including a first bypass provided with a valve for returning a part of or all of the air from the expansion unit to the air-to-air heat exchanger while bypassing the chamber, and a hot air bypass provided with a valve for taking in the air at 0° C. or higher from an air passage between the compressor and the expansion unit, and for supplying the air to an air passage on an inlet side of the air-to-air heat exchanger.
  • DISCLOSURE OF INVENTION
  • An object of the present invention is to provide an apparatus which supplies heat with a high efficiency by a heat cycle of an air refrigerant.
  • Another object of the present invention is to provide an apparatus which simultaneously performs freezing and heating by a heat cycle of an air refrigerant.
  • An air refrigerant type freezing and heating apparatus according to the present invention includes: a compressing mechanism which compresses an air refrigerant; a heating unit which heats a object by the air refrigerant outputted from the compressing mechanism; a heat exchanger which cools the air refrigerant outputted from the heating unit; a turbine which expands the air refrigerant outputted from the heat exchanger; and a cooler which cools a object by the air refrigerant outputted from the turbine.
  • In the air refrigerant type freezing and heating apparatus according to the present invention, the compressing mechanism is composed of a single compressor.
  • In the air refrigerant type freezing and heating apparatus according to the present invention, the compressing mechanism is a compressor that rotates coaxially with the turbine. The air refrigerant taken in from the cooler is supplied to a low-temperature side flow passage of the heat exchanger, and the air refrigerant outputted from the low-temperature side flow passage is directly supplied to the compressor.
  • In the air refrigerant type freezing and heating apparatus according to the present invention, the compressing mechanism includes an auxiliary compressor and a main compressor which further pressurizes the air refrigerant pressurized by the auxiliary compressor.
  • The air refrigerant type freezing and heating apparatus according to the present invention includes a heat recovery unit which recovers heat of the air refrigerant outputted from the heating unit and heats the air refrigerant flowing between the compressing mechanism and the heating unit.
  • The air refrigerant type freezing and heating apparatus according to the present invention includes a second heating unit which heats the object by the air refrigerant flowing on a subsequent stage side of the heat recovery unit and on a prior stage side of the heat exchanger.
  • The air refrigerant type freezing and heating apparatus according to the present invention includes a heater which heats the air refrigerant flowing in the heating unit.
  • In the air refrigerant type freezing and heating apparatus according to the present invention, the heater is an oven.
  • An air refrigerant type cooling and heating system according to the present invention includes the air refrigerant type freezing and heating apparatus according to the present invention; a regenerator which is filled with an absorbent absorbing a refrigerant different from the air refrigerant, heats and evaporates the refrigerant mixed in the absorbent using the air refrigerant outputted from the compressing mechanism; a condenser which condenses the refrigerant evaporated by the regenerator; an evaporator which evaporates the refrigerant condensed by the condenser and cools a third object by heat of evaporation; and an absorber which allows the absorbent outputted from the regenerator to absorb the refrigerant evaporated by the evaporator and feeds the resultant absorbent to the regenerator.
  • According to the present invention, an apparatus is provided, which supplies heat with a high efficiency by a heat cycle of the air refrigerant.
  • According to the present invention, an apparatus is provided, which simultaneously performs freezing and heating by a heat cycle of the air refrigerant.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 shows a configuration of an air refrigerant type freezing and heating apparatus according to a first embodiment of the preset invention.
  • FIG. 2 shows a configuration of an absorption freezer connected to the air refrigerant type freezing and heating apparatus.
  • FIG. 3 shows a configuration of an air refrigerant type freezing and heating apparatus according to a second embodiment of the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION First Embodiment
  • Best modes for carrying out an air refrigerant type freezing and heating apparatus according to the present invention will be described hereinafter with reference to the drawings. FIG. 1 shows a configuration of an air refrigerant type freezing and heating apparatus according to a first embodiment of the present invention.
  • The air refrigerant type freezing and heating apparatus includes a compressor 2. The compressor 2 is driven by a motor 4. The motor 4 is a synchronous motor rotating at a rotation speed of about 21000 rpm, and a power of the motor 4 is 85 kw.
  • An air pipe 28 is connected to an inlet side (an upstream side) of the compressor 2. An outlet side (a downstream side) of the compressor 2 is connected to an air passage 29 of a heat exchanger 30 through an air pipe 3. The heat exchanger 30 includes a passage 42, through which a heat transfer medium for exchanging heat with the air in the air passage 29 flows. The heat transfer medium is preferably a liquid such as pressurized water.
  • The air pipe connected to an outlet side of the air passage 29 is introduced into a heater 32. A power of the heater 32 is 46 kW. The air pipe is introduced into an oven 34 in a downstream of the heater 32. The oven includes a baking chamber, into which a heating object such as bread and cookies is put. The outlet of the air pipe is opened to the baking chamber. An air pipe connected to an outlet side of the oven 34 is connected to an air passage 35 of a heat exchanger 36. The heat exchanger 36 includes a passage 44, trough which the heat transfer medium for exchanging heat with the air in the air pipe 35 flows. The passage 44 is connected to the passage 42 trough a pump 38.
  • An outlet side of the air pipe 35 is connected to a heat exchanger 8 through an air pipe 37. The heat exchanger 8 includes a pipe 9, through which a heat transfer medium for exchanging heat with the air in the air pipe 37 flows. The pipe 9 is connected to a cooling tower which is not shown. A circulating pump 12 which circulates the water between the heat exchanger 8 and the cooling tower is connected to the pipe 9. An air-cooled heat exchanger may be used as the heat exchanger 8.
  • An outlet side of an air-side passage of the water cooling heat exchanger 8 is connected to a pipe 13. The pipe 13 is connected to an inlet side of an expansion turbine 16 through a high-temperature-side passage of an exhaust heat recovery heat exchanger 14. The expansion turbine 16 is connected to a shaft of the motor 4 coaxially with the compressor 2.
  • A pipe on an outlet side of the expansion turbine 16 is connected to a defroster 18 that removes frost. A pipe on an outlet side of the defroster 18 is connected to a freezer inlet pipe 21. The freezer inlet pipe 21 is connected to a freezer 22, and opened to a cooling chamber which contains a cooling object within the freezer 22. The freezer 22 is a storage which includes an openable/closable door and forms a closed cooling chamber inside by closing the door.
  • The freezer 22 is connected to a pipe 26 which takes in the refrigerant air from the cooling chamber. The pipe 26 is connected to the air pipe 28 through a low-temperature-side passage of the exhaust heat recovery heat exchanger 14.
  • The air refrigerant type freezing apparatus 1 which includes above-mentioned configuration operates as follows.
  • (Use of Freezer)
  • The circulating pump 12 is driven to cause the water to flow in the water pipe 9. The motor 4 is activated to driven the compressor 2 and the expansion turbine 16. The compressor 2 draws and compresses the refrigerant air in the pipe 28. The refrigerant air, of which a temperature and a pressure are increased by being compressed, is discharged to the air pipe 3. The refrigerant air in the air pipe 3 flows into the heat exchanger 8 through the heater 32, the oven 34, and the heat exchanger 36. The refrigerant air is cooled by exchanging the heat between the refrigerant air and the water circulating in the water pipe 9 in the heat exchanger 8.
  • The refrigerant air outputted from the water cooling heat exchanger 8 flows into the pipe 13. The refrigerant air flowing in the pipe 13 is further cooled in the high-temperature-side passage of the exhaust heat recovery heat exchanger 14 by exchanging the heat between the refrigerant air and the refrigerant air flowing from the pipe 26 into the low-temperature-side passage.
  • The refrigerant air cooled by the exhaust heat recovery heat exchanger 14 enters the expansion turbine 16 through the pipe on the outlet side of the exhaust heat recovery heat exchanger 14. The refrigerant air is further cooled by an adiabatic expansion in the expansion turbine 16.
  • The moisture of the refrigerant air outputted from the expansion turbine 16 is removed by the defroster 18. The refrigerant air output from the defroster 18 is supplied into the cooling chamber of the freezer 22, and the freezer 22 is cooled. The internal air of the cooling chamber flows into the pipe 26. The refrigerant air flowing in the pipe 26 is heated by exchanging the heat with the refrigerant air flowing in the high-temperature-side passage of the exhaust heat recovery heat exchanger 14 in the low-temperature-side passage of the exhaust heat recovery heat exchanger 14. The heated refrigerant air flows into the compressor 2 through the pipe 28.
  • (Use of Oven)
  • The pump 38 is driven to circulate the heat medium between the passages 42 and 44. The heater 32 is switched on.
  • The heat transfer medium flowing in the passage 44 is heated by exchanging the heat with the air medium flowing in the air passage 35. The heated heat transfer medium flows into the passage 42. The air flowing in the air passage 29 is heated by exchanging the heat with the heat transfer medium in the passage 42.
  • The air heated in the air passage 29 is further heated by the heater 32. The heated air is introduced into the baking chamber of the oven 34. An interior of the oven 34 is heated by the air. The air outputted from the oven 34 flows into the air pipe 37 through the air passage 35. Thus, a flow of the refrigerant air on a downstream side is equal to that when the pump 38 and the heater 32 are not activated.
  • When the operation of the apparatus reaches a steady operation after activating the pump 38 and the heater 32, temperatures of the respective elements are as follows. The temperature of the air refrigerant on the outlet side of the compressor 2 is 114° C. The temperature of the air refrigerant on the outlet side of the heat exchanger 30 is 190° C. The temperature of the air refrigerant on the outlet side of the heater 32 is 220° C. The temperature of the air refrigerant on the outlet side of the oven 34 is 200° C. The temperature of the air refrigerant on the outlet side of the heat exchanger 36 is 124° C. The temperature of the air refrigerant on the inlet side of the freezer 22 is −85° C. A heating ability of the oven 34 is 31 kW.
  • (Application)
  • An internal temperature of the oven 34 is about 220° C. Using such an oven 34, the bread, cookies and the like can be baked. The air refrigerant type freezing and heating apparatus according to this embodiment can produce frozen foods using the freezer 22, and can be suitably employed particularly in a food plant that produces both frozen foods and baked products such as bread and cookies.
  • An efficiency of the air refrigerant type freezing and heating apparatus according to this embodiment can be evaluated using a COP (Coefficient of performance) as follows:
    Total COP=(Freezer freezing ability (Q 1)+Heater heating ability (Q 2))/(Turbine unit power (Q 3)+Heater input (Q 4)).
  • If it is assumed that M denotes an air flow rate (1.54 kg/s), H60 denotes an absolute temperature of the freezer outlet 273−60=213K, and H85 denotes an absolute temperature of the freezer inlet 273−85=188K, the following equations are established:
    Q 1 =M×(H 60 −H 85)=1.54 (kg/s)×(213-188) (kJ/kg)=38 kJ/s=38 kW,
  • Q2=31 kW,
  • Q3=85 kW, and
  • Q4=46 kW.
  • Accordingly, Total COP=(38+31)/(85+46)=0.53.
  • On the other hand, the COP of the apparatus performing only baking without freezing is represented as follows, while assuming that H220 is a temperature after heating the air and H35 is a temperature before heating the air:
    Q 2/(M×(H 220 −H 35)=31/(1.54×(493-308))=0.11.
  • Further, the COP of the apparatus performing only freezing without baking is represented as follows:
    Q 1 /Q 3=38/85=0.44.
  • As described above, the air refrigerant type freezing and heating apparatus according to this embodiment can greatly improve the efficiency if being used for both the freezing and the baking, as compared with use of the apparatus only for the freezing or the baking.
  • Because of a physical property of the air, the air as high as about 120° C. can be obtained even at a low compression ratio (compression ratio: 2). At a compression ratio of 2, the temperature of a chlorofluorocarbon refrigerant is increased to about 60° C. to 70° C. and that of an ammonium refrigerant is increased to about 70° C. to 80° C. Therefore, the apparatus using the air refrigerant can easily attain the higher efficiency if the apparatus is used for baking.
  • As an air refrigerant type freezer, a freezer, connected to two compressors for compressing the air and using a motor at a lower rotation speed (several thousands rpm) than that of the motor according to this embodiment, is known. In the case of such a freezer having two compression stage, the temperature of the air refrigerant at an outlet of each compressors is about 60° C. to 70° C., which is lower than the temperature of the single compressor used in the apparatus according to this embodiment. Due to this, if the air refrigerant is heated up to the temperature used for the baking, the apparatus using the single compressor can attain the higher efficiency (COP).
  • In the air refrigerant type freezing and heating apparatus according to this embodiment, the outlet temperature of the compressor 2 is 114° C., which is higher than a boiling point 100° C. of the water at an atmospheric pressure. Therefore, many applications using this heat are considered. Further, it suffices to output a smaller power necessary to raise the temperature up to the temperature for baking the bread, cookies, and the like from an external heat source, thereby improving the efficiency.
  • According to this embodiment, the air refrigerant at 190° C. outputted from the heat exchanger 30, the air refrigerant at 220° C. obtained by being heated by the heater 32, and the air refrigerant at 124° C. flowing from the heat exchanger 36 can be used for various purposes. They can be suitably used in, for example, a drying machine, a heat sterilizer, a floor heating system, and an air conditioning system using a radiator and the like.
  • Furthermore, by employing the air refrigerant type freezing and heating apparatus according to the present invention while being connected to an absorption freezer, a high efficiency can be attained as a whole. FIG. 2 shows a configuration of the absorption freezer. The absorption freezer 100 is composed of heat exchangers of a regenerator 101, a condenser 102, an evaporator 103, an absorber 104, and a heat exchanger 105 as well as a solution pump 106, a refrigerant pump 107, and a control valve 108.
  • The regenerator 101 is provided to generate a refrigerant steam by heating a refrigerant solution by heat supplied from a heat source 110 and evaporating a refrigerant component. As this heat source 110, heat of the air refrigerant at 190° C. outputted from the heat exchanger 30, heat of the air refrigerant at 220° C. obtained by being heated by the heater 32, or heat of the air refrigerant at 124° C. outputted from the heat exchanger 36 is used.
  • The condenser 102 is provided to condense the refrigerant steam generated by the regenerator 101 into a refrigerant liquid. The evaporator 103 is provided to perform a heat exchange between the refrigerant liquid generated by the condenser 102 and the cooling water flowing in the pipe 109 to thereby cool the cooling water to a predetermined temperature. In addition, the evaporator 103 is provided to evaporate the refrigerant liquid to generate the refrigerant steam. The absorber 104 is provided to allow the regenerator 101 to absorb the refrigerant steam generated by the evaporator 103 in a solution remaining after evaporating the refrigerant component, thereby preparing the refrigerant solution. The heat exchanger 105 is provided to perform a heat exchange between the refrigerant solution generated by the absorber 104 and the solution remaining after the evaporation of the refrigerant component. The solution pump 106 is provided to circulate the refrigerant solution between the regenerator 101 and the absorber 104. The control valve 108 is provided to control an inflow amount of the heat source supplied to the regenerator 101.
  • The absorption freezer 100 is mainly intended to cool the cooling water flowing in the pipe 109 to a predetermined temperature using heat of evaporation of the refrigerant liquid within the evaporator 103. By connecting the air refrigerant type freezing and heating apparatus to the absorption freezer 100, a cooling and heating system having a high efficiency and available as a heat source at various temperatures is provided.
  • Second Embodiment
  • FIG. 3 shows a configuration of an air refrigerant type freezing and heating system according to a second embodiment of the present invention.
  • The air refrigerant type cooling and heating system 800 according to this embodiment includes an auxiliary compressor 802, a motor 804, an auxiliary cooler 806, a main compressor 822, a first heat exchanger 820, a second heat exchanger 830, an expansion turbine 832, and a cooling chamber 840. The auxiliary compressor 802 is driven by the motor 804. An outlet side of the auxiliary compressor 802 is connected to the auxiliary cooler 806 through a pipe. An outlet side of the auxiliary cooler 806 is connected to the main compressor 822 through a pipe. The main compressor 822 is connected coaxially with the expansion turbine 832.
  • An outlet side of the main compressor 822 is connected to a high-temperature-side pipe 824 of the cooler 820 through a pipe. An outlet side of the high-temperature-pipe 824 of the cooler 820 is connected to a high-temperature-side passage of the heat exchanger 830. An outlet side of the high-temperature-side passage of the heat exchanger 830 is connected to the expansion turbine 832. An outlet side of the expansion turbine 832 is connected to an air outlet 805 of the cooling chamber 840. The cooling chamber 840 includes an air inlet 803, and the air inlet 803 is connected to a low-temperature-side passage of the heat exchanger 830 through a pipe. An outlet side of the low-temperature-side passage of the heat exchanger 830 is connected to the auxiliary compressor 802.
  • An operation principle of the air refrigerant type cooling apparatus 800 according to this embodiment will be described.
  • The motor 804 is driven to thereby rotate the auxiliary compressor 802. The auxiliary compressor 802 discharges the refrigerant air. The auxiliary cooler 806 is activated. The refrigerant air discharged from the auxiliary compressor 802 is cooled by the auxiliary cooler 806, and outputted to the main compressor 822. The refrigerant air flows into the main compressor 822, thereby rotating the main compressor 822 and the expansion turbine 832. A temperature of the refrigerant air discharged from the main compressor 822 is about 60° C. to 70° C. This refrigerant air is cooled by the first heat exchanger 820. The refrigerant air outputted from the first heat exchanger 820 is further cooled by the second heat exchanger 830. The refrigerant air outputted from the second heat exchanger 830 is further cooled by the expansion turbine 832, and supplied to the cooling chamber 840 from the air outlet 805. The internal air 840 of the cooling chamber 840 is taken in from the air inlet 803 and supplied to the auxiliary compressor 802 through the low-temperature-side pipe of the second heat exchanger 830.
  • In the heat exchanger 820, a heat transfer medium such as the water flowing in the low-temperature-side pipe 825 is heated by a heat of the refrigerant air at about 60° C. to 70° C. supplied to the high-temperature-side pipe. The heat medium thus heated is used for the floor heating system, to supply hot water or the like. By using the heater that heats the heat transfer medium outputted from the low-temperature-side pipe 825 of the heat exchanger 820, it is possible to apply the apparatus 800 to an instance of requiring the heat transfer medium at a higher temperature.
  • The tangible values of temperatures, powers, coefficients, flow rates and so on, described in “Best Mode for Carrying out the Invention”, are examples. The present invention is not limited to those tangible values.

Claims (13)

1. An air refrigerant type freezing and heating apparatus comprising:
a compressing mechanism which compresses an air refrigerant;
a heating unit which heats a first object by said air refrigerant outputted from said compressing mechanism;
a heat exchanger which cools said air refrigerant outputted from said heating unit;
a turbine which expands said air refrigerant outputted from said heat exchanger; and
a cooler which cools a second object different from said first object by said air refrigerant outputted from said turbine.
2. The air refrigerant type freezing and heating apparatus according to claim 1, wherein said compressing mechanism is composed of a single compressor.
3. The air refrigerant type freezing and heating apparatus according to claim 1, further comprising:
a heat recovery unit which recovers heat of said air refrigerant outputted from said heating unit and heats said air refrigerant flowing between said compressing mechanism and said heating unit.
4. The air refrigerant type freezing and heating apparatus according to claim 3, further comprising:
a second heating unit which heats an object by said air refrigerant flowing on a subsequent stage side of said heat recovery unit and on a prior stage side of the heat exchanger.
5. The air refrigerant type freezing and heating apparatus according to claim 1, further comprising:
a heater which heats said air refrigerant flowing in said heating unit.
6. The air refrigerant type freezing and heating apparatus according to claim 1, wherein said heater is an oven.
7. An air refrigerant type cooling and heating system comprising:
an air refrigerant type freezing and heating apparatus according to claim 1, which includes:
a compressing mechanism which compresses an air refrigerant;
a heating unit which heats a first object by said air refrigerant outputted from said compressing mechanism;
a heat exchanger which cools said air refrigerant outputted from said heating unit;
a turbine which expands said air refrigerant outputted from said heat exchanger; and
a cooler which cools a second object different from said first object by said air refrigerant outputted from said turbine;
a regenerator which is filled with an absorbent absorbing a refrigerant different from the air refrigerant, heats and evaporates said refrigerant mixed in said absorbent by using said air refrigerant outputted from said compressing mechanism;
a condenser which condenses said refrigerant evaporated by said regenerator;
an evaporator which evaporates said refrigerant condensed by said condenser and cools a third object by heat of evaporation; and
an absorber which allows said absorbent outputted from said regenerator to absorb said refrigerant evaporated by said evaporator and outputs said absorbent to said regenerator.
8. The air refrigerant type freezing and heating apparatus according to claim 1, wherein the compressing mechanism is a compressor which rotates coaxially with said turbine,
said air refrigerant taken in from said cooler is supplied to a low-temperature side flow passage of said heat exchanger, and
said air refrigerant outputted from said low-temperature side flow passage is directly supplied to said compressor.
9. The air refrigerant type cooling and heating system according to claim 7, wherein said compressing mechanism is composed of a single compressor.
10. The air refrigerant type cooling and heating system according to claim 7, wherein said air refrigerant type freezing and heating apparatus further includes:
a heat recovery unit which recovers heat of said air refrigerant outputted from said heating unit and heats said air refrigerant flowing between said compressing mechanism and said heating unit.
11. The air refrigerant type cooling and heating system according to claim 10, wherein said air refrigerant type freezing and heating apparatus further includes:
a second heating unit which heats an object by said air refrigerant flowing on a subsequent stage side of said heat recovery unit and on a prior stage side of the heat exchanger.
12. The air refrigerant type cooling and heating system according to claim 7, wherein said air refrigerant type freezing and heating apparatus further includes:
a heater which heats said air refrigerant flowing in said heating unit.
13. The air refrigerant type cooling and heating system according to claim 7, wherein said heater is an oven.
US10/524,692 2004-11-29 2004-11-29 Air refrigerant type freezing and heating apparatus Abandoned US20070051126A1 (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100162729A1 (en) * 2008-12-29 2010-07-01 Mccormick Stephen A Liquid CO2 Passive Subcooler
US20110126583A1 (en) * 2008-12-29 2011-06-02 Mccormick Stephen A Liquid co2 passive subcooler
US20110132005A1 (en) * 2009-12-09 2011-06-09 Thomas Edward Kilburn Refrigeration Process and Apparatus with Subcooled Refrigerant
US20110314844A1 (en) * 2010-06-25 2011-12-29 Junjie Gu Method and apparatus for waste heat recovery and absorption gases used as working fluid therein
US20130014529A1 (en) * 2010-02-17 2013-01-17 Ac-Sun Aps Apparatus for air conditioning or water production
WO2015076951A1 (en) * 2013-11-25 2015-05-28 Benson Dwayne M Integrated power, cooling, and heating device and method thereof
US9222372B2 (en) 2010-06-02 2015-12-29 Dwayne M Benson Integrated power, cooling, and heating apparatus utilizing waste heat recovery
US9927157B2 (en) 2010-06-02 2018-03-27 Dwayne M. Benson Integrated power, cooling, and heating device and method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9470149B2 (en) * 2008-12-11 2016-10-18 General Electric Company Turbine inlet air heat pump-type system
JP5594129B2 (en) * 2010-12-24 2014-09-24 東京電力株式会社 Industrial heating system
CN102230685B (en) * 2011-06-08 2012-12-19 四川依米康环境科技股份有限公司 Control method of pump energy-saving air conditioning unit with double power sources

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355903A (en) * 1965-01-04 1967-12-05 Fleur Corp System of power-refrigeration
US5644928A (en) * 1992-10-30 1997-07-08 Kajima Corporation Air refrigerant ice forming equipment

Family Cites Families (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733574A (en) * 1956-02-07 Refrigerating system
US2118949A (en) * 1935-02-15 1938-05-31 Lewis L Scott Process of cooling and ventilating
FR1048070A (en) 1950-09-02 1953-12-18 Garrett Corp Air conditioning installation
US2706894A (en) * 1952-07-03 1955-04-26 Philco Corp Two temperature refrigerator
US3321930A (en) * 1965-09-10 1967-05-30 Fleur Corp Control system for closed cycle turbine
US3355905A (en) 1966-08-19 1967-12-05 Garrett Corp Air conditioning system with means for preventing the formation of ice
US3696637A (en) * 1968-08-15 1972-10-10 Air Prod & Chem Method and apparatus for producing refrigeration
US3792595A (en) * 1972-10-26 1974-02-19 Thermo King Corp Transportable refrigeration apparatus for preserving perishables
US4328684A (en) * 1978-04-10 1982-05-11 Hughes Aircraft Company Screw compressor-expander cryogenic system with magnetic coupling
JPS5618883U (en) 1979-07-20 1981-02-19
US4539816A (en) * 1981-04-03 1985-09-10 Minnesota Mining And Manufacturing Company Heat and liquid recovery using open cycle heat pump system
US4483153A (en) * 1983-02-02 1984-11-20 Emhart Industries, Inc. Wide island air defrost refrigerated display case having a defrost-only center passage
JPS6127994U (en) 1984-07-25 1986-02-19
WO1986003825A1 (en) 1984-12-17 1986-07-03 Itumic Oy Method for the control of air-conditioning as well as equipment for carrying out the method
DE3544445C2 (en) * 1985-12-16 1988-04-21 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De
JPH086973B2 (en) * 1989-03-06 1996-01-29 ホシザキ電機株式会社 Refrigeration cycle of the ice-making machine
GB2237373B (en) 1989-10-10 1993-12-08 Aisin Seiki Air cycle air conditioner for heating and cooling
JP3067175B2 (en) * 1990-08-06 2000-07-17 ホシザキ電機株式会社 Ice Machine
JPH05106944A (en) 1991-10-14 1993-04-27 Nippondenso Co Ltd Refrigerating device
US5248239A (en) * 1992-03-19 1993-09-28 Acd, Inc. Thrust control system for fluid handling rotary apparatus
US5267449A (en) 1992-05-20 1993-12-07 Air Products And Chemicals, Inc. Method and system for cryogenic refrigeration using air
US5279130A (en) 1992-06-18 1994-01-18 General Electric Company Auxiliary refrigerated air system with anti-icing
JPH06101498A (en) 1992-09-18 1994-04-12 Hitachi Ltd Magnetic bearing type turbine compressor
JP2513367Y2 (en) 1992-10-02 1996-10-02 日本フルハーフ株式会社 Van-type refrigeration vehicle
JPH0791760A (en) 1993-09-17 1995-04-04 Hitachi Ltd Magnetic bearing-type turbine compressor
JPH07324789A (en) 1994-06-02 1995-12-12 Tac Kenchiku Toshi Keikaku Kenkyusho:Kk Preservation environment setting method for cultural property preservation facility with concrete skeleton
JPH0861821A (en) 1994-08-16 1996-03-08 Kajima Corp Low-temperature, refrigerating storehouse
JP3636746B2 (en) 1994-08-25 2005-04-06 光洋精工株式会社 Magnetic bearing device
JPH09178323A (en) 1995-12-26 1997-07-11 Hitachi Plant Eng & Constr Co Ltd Refrigerator-freezer type warehouse
JPH09196485A (en) 1996-01-19 1997-07-31 Mitsubishi Heavy Ind Ltd Air refrigeration method, and air refrigerating device and refrigerator adopting this method
JPH09217976A (en) 1996-02-09 1997-08-19 Mitsubishi Heavy Ind Ltd Refrigerating unit for container
JP2926472B2 (en) 1996-02-28 1999-07-28 日本酸素株式会社 Tempering the aircraft ground air conditioner, humidity METHOD
JPH1089823A (en) 1996-09-18 1998-04-10 Kobe Steel Ltd Air conditioner using cold of low-temperature liquefied gas
JP3716061B2 (en) * 1996-10-25 2005-11-16 三菱重工業株式会社 Turbo refrigerator
JPH10148408A (en) 1996-11-20 1998-06-02 Daikin Ind Ltd Refrigerating system
JPH10160195A (en) 1996-11-28 1998-06-19 Sharp Corp Integrated air conditioner
JP3336428B2 (en) 1997-03-21 2002-10-21 日本酸素株式会社 Freezing method
US5924307A (en) * 1997-05-19 1999-07-20 Praxair Technology, Inc. Turbine/motor (generator) driven booster compressor
JPH1155899A (en) 1997-07-29 1999-02-26 Ishikawajima Harima Heavy Ind Co Ltd Ultrahigh speed rotary electric machine
JPH1163792A (en) 1997-08-26 1999-03-05 Atsuyoshi Mantani Refrigerating storage with non-frosting undersurface of ceiling
GB9721850D0 (en) * 1997-10-16 1997-12-17 Normalair Garrett Ltd Motor cooling
JP3824757B2 (en) 1997-10-24 2006-09-20 日本発条株式会社 Air refrigerant refrigeration system
JP3891668B2 (en) * 1997-10-24 2007-03-14 鹿島建設株式会社 Air purification cooling equipment
US6151909A (en) * 1998-03-13 2000-11-28 Alliedsignal Inc. Two spool air cycle machine having concentric shafts
US6148622A (en) * 1998-04-03 2000-11-21 Alliedsignal Inc. Environmental control system no condenser high pressure water separation system
JP2000002481A (en) 1998-06-16 2000-01-07 Nippon Sanso Kk Method and system for producing nitrogen
JP4172088B2 (en) 1999-04-30 2008-10-29 ダイキン工業株式会社 Refrigeration equipment
JP2000356425A (en) 1999-06-16 2000-12-26 Nippon Sanso Corp Apparatus and method for producing low temperature gas
US6381973B1 (en) * 1999-10-04 2002-05-07 Delphi Technologies, Inc. Vehicle air cycle air conditioning system
JP2001123997A (en) 1999-10-21 2001-05-08 Hitachi Ltd Centrifugal compressor with magnetic bearing
JP2001221551A (en) 2000-02-04 2001-08-17 Shibaura Mechatronics Corp Cold insulation cabinet
DE10009373C2 (en) * 2000-02-29 2002-03-14 Airbus Gmbh Air conditioning system for a passenger aircraft
DE10010119A1 (en) 2000-03-03 2001-09-13 Krantz Tkt Gmbh Method and apparatus for ventilating and tempering a room
US6260375B1 (en) * 2000-06-09 2001-07-17 Chin-Sheng Kuo Air conditioner blowing cool air to many directions
US6481232B2 (en) * 2000-07-26 2002-11-19 Fakieh Research & Development Center Apparatus and method for cooling of closed spaces and production of freshwater from hot humid air
JP2002112475A (en) 2000-09-26 2002-04-12 Hitachi Ltd Permanent magnet rotating electric machine, air compressor and power generator using it
JP4584435B2 (en) 2000-10-16 2010-11-24 株式会社前川製作所 Freeze-thaw powder drying method and apparatus
JP4396064B2 (en) * 2001-07-31 2010-01-13 三菱電機株式会社 Refrigerator
JP2003083634A (en) * 2001-09-06 2003-03-19 Sekisui Chem Co Ltd Heat pump system
JP3747370B2 (en) 2002-03-26 2006-02-22 日本発条株式会社 Air cycle cooling system
JP3862070B2 (en) 2002-03-27 2006-12-27 日本発条株式会社 Air cycle cooling system
JP3841283B2 (en) 2002-03-27 2006-11-01 日本発条株式会社 Air cycle cooling system
JP2003302116A (en) * 2002-04-05 2003-10-24 Mitsubishi Heavy Ind Ltd Cold and heat insulation apparatus
US6672081B1 (en) 2002-10-31 2004-01-06 Visteoo Global Technologies, Inc. System and method of preventing icing in an air cycle system
DE10261922A1 (en) * 2002-12-24 2004-07-15 Kaeser Kompressoren Gmbh refrigeration dryer
KR20030031540A (en) 2003-03-28 2003-04-21 (주)범양 유니콜드 Air cycle low temperature refrigerator for warehouse using high speed brushless direct current motor
US6848261B2 (en) * 2003-04-03 2005-02-01 Honeywell International Inc. Condensing cycle with energy recovery augmentation
KR100519306B1 (en) * 2003-05-28 2005-10-10 엘지전자 주식회사 Air-conditioner system with ventilation
US6941770B1 (en) * 2004-07-15 2005-09-13 Carrier Corporation Hybrid reheat system with performance enhancement
US6973801B1 (en) * 2004-12-09 2005-12-13 International Business Machines Corporation Cooling system and method employing a closed loop coolant path and micro-scaled cooling structure within an electronics subsystem of an electronics rack

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355903A (en) * 1965-01-04 1967-12-05 Fleur Corp System of power-refrigeration
US5644928A (en) * 1992-10-30 1997-07-08 Kajima Corporation Air refrigerant ice forming equipment

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100162729A1 (en) * 2008-12-29 2010-07-01 Mccormick Stephen A Liquid CO2 Passive Subcooler
US20110126583A1 (en) * 2008-12-29 2011-06-02 Mccormick Stephen A Liquid co2 passive subcooler
US20110132005A1 (en) * 2009-12-09 2011-06-09 Thomas Edward Kilburn Refrigeration Process and Apparatus with Subcooled Refrigerant
KR101747990B1 (en) 2010-02-17 2017-06-27 에이씨-선 에이피에스 Apparatus for air conditioning or water production
US20130014529A1 (en) * 2010-02-17 2013-01-17 Ac-Sun Aps Apparatus for air conditioning or water production
US8997516B2 (en) * 2010-02-17 2015-04-07 Ac-Sun Aps Apparatus for air conditioning or water production
US9927157B2 (en) 2010-06-02 2018-03-27 Dwayne M. Benson Integrated power, cooling, and heating device and method thereof
US9222372B2 (en) 2010-06-02 2015-12-29 Dwayne M Benson Integrated power, cooling, and heating apparatus utilizing waste heat recovery
US9890664B2 (en) 2010-06-02 2018-02-13 Dwayne M. Benson Integrated power, cooling, and heating apparatus utilizing waste heat recovery
US20110314844A1 (en) * 2010-06-25 2011-12-29 Junjie Gu Method and apparatus for waste heat recovery and absorption gases used as working fluid therein
US8544284B2 (en) * 2010-06-25 2013-10-01 Petrochina North China Petrochemical Company Method and apparatus for waste heat recovery and absorption gases used as working fluid therein
WO2015076951A1 (en) * 2013-11-25 2015-05-28 Benson Dwayne M Integrated power, cooling, and heating device and method thereof

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US20110005252A1 (en) 2011-01-13
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EP1843108A1 (en) 2007-10-10
EP1843108A4 (en) 2008-01-23

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