CN1719159A - Refrigeration system - Google Patents

Refrigeration system Download PDF

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Publication number
CN1719159A
CN1719159A CN 200510062893 CN200510062893A CN1719159A CN 1719159 A CN1719159 A CN 1719159A CN 200510062893 CN200510062893 CN 200510062893 CN 200510062893 A CN200510062893 A CN 200510062893A CN 1719159 A CN1719159 A CN 1719159A
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China
Prior art keywords
cold
warm water
heat
heat exchanger
water
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Granted
Application number
CN 200510062893
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Chinese (zh)
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CN100419349C (en
Inventor
高松正树
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Publication of CN1719159A publication Critical patent/CN1719159A/en
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Publication of CN100419349C publication Critical patent/CN100419349C/en
Expired - Fee Related legal-status Critical Current
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    • 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
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/22—Refrigeration systems for supermarkets
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/24—Storage receiver heat
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

The present invention provides a refrigeration facility capable of suppressing thermal loss in heat accumulating operation. This facility comprises a heat source refrigeration cycle 101 driven by night power to generate cold water and hot water; a first cold and hot water heat accumulation device 102 and a second cold and hot water heat accumulation device 104 independently storing the cold water and hot water generated by this refrigeration cycle, a hot water supply device using the hot water stored in the first heat accumulation device 102 and an air conditioner using the cold water stored in the second heat accumulation device 104 as part of the heat source of an air conditioning refrigeration cycle 105.

Description

Freezing equipment
Technical field
The present invention relates to freezing equipment, particularly have the freezing equipment that the thermal source that utilizes night electricity to drive is used refrigerating circulation system.
Background technology
Generally, such freezing equipment is open.Promptly compressor, condenser, decompressor and evaporimeter are linked in sequence by refrigerant piping and constitute refrigerating circulation system, is the hotwork of the evaporimeter of this refrigerating circulation system that thermal source produces cold water, again the heat of this cold water is stored in the ice heat storage tank, when refrigerating operaton, can utilize the accumulation of heat refrigerating operaton (with reference to patent documentation 1) of described cold water heat.
(patent documentation 1) spy opens the 2002-130770 communique
But in the formation of prior art, when being used to ice heat-accumulator tank and carrying out the regenerative operation of accumulation of heat, the heat of condenser is emitted to the external world, can not effectively utilize this heat.
Being not limited to this technology, is the hotwork of the condenser of refrigerating circulation system thermal source also in the heat supply wetting system of heat-pump-type etc. for example, generates warm water, in the heat of this warm water being stored in the storage hot water storgae.Also exist the heat of evaporimeter to emit to the outside this moment when storing the hot water operation, can not effectively utilize the problem of this heat.
Summary of the invention
At this, the objective of the invention is to solve above-mentioned the problems of the prior art, the freezing equipment of the thermal loss when suppressing regenerative operation is provided.
Freezing equipment of the present invention has: utilize thermal source that night electricity drive to generate cold water and warm water with refrigerating circulation system, respectively store this thermal source is stored in the first cold warm water regenerative apparatus with the first cold warm water regenerative apparatus of cold water that produces in the refrigerating circulation system and warm water and the second cold warm water regenerative apparatus, utilization cold water as the idle call refrigerating circulation system-aircondition of part of heat energy, the hot-water supply that utilization is stored in the warm water of the second cold warm water regenerative apparatus.
This freezing equipment can also have: the thermal source refrigerating circulation system, it connects first compressor, first cross valve, first heat exchanger, first decompressor and second heat exchanger in turn with refrigerant piping, make first heat exchanger play heat release thermal source or heat absorption thermal source by switching first cross valve, make second heat exchanger play heat absorption thermal source or heat release thermal source simultaneously; The first cold warm water regenerative apparatus, its first heat exchanger connects by the water pipe arrangement, plays the heat release thermal source at this first heat exchanger and makes time spent storage warm water, does the time spent at a heat absorption thermal source and stores cold water; Refrigerating plant, it is connected with this first cold warm water regenerative apparatus, can utilize this cold water to cross cold operation when this first cold warm water regenerative apparatus is stored cold water; The second cold warm water regenerative apparatus, its described second heat exchanger connects by the water pipe arrangement, plays the heat release thermal source at this second heat exchanger and makes time spent storage warm water, does the time spent at a heat absorption thermal source and stores cold water; The idle call refrigerating circulation system, it is connected with the second cold warm water regenerative apparatus, can utilize the supercooling operation or the heating and cooling agent operation of the cold warm water that is stored in this second cold warm water regenerative apparatus.
The idle call refrigerating circulation system connects second compressor, second cross valve, the 3rd heat exchanger in turn, carries out the 4th heat exchanger, second decompressor of heat exchange and the 5th heat exchanger that carries out heat exchange with air in the room that uses air-conditioning with cold warm water in the described second cold warm water regenerative apparatus with refrigerant piping.In addition, described idle call refrigerating circulation system also has the bypass circulation of bypass the 4th heat exchanger.Described refrigerating plant also can constitute by refrigerant piping be linked in sequence the 3rd compressor, with the described first cold warm water regenerative apparatus in the cold warm water condenser, the 3rd decompressor and the evaporimeter that carry out heat exchange.In addition, described thermal source also can have the 6th heat exchanger of air heat source formula between first heat exchanger and first decompressor with refrigerating circulation system.Also have in addition with night electricity and drive the control device of described thermal source with refrigerating circulation system.Fill the cold-producing medium that the high-pressure side reaches supercritical pressure at described thermal source with refrigerating circulation system.
The present invention is owing to be stored in the cold water and the warm water that produce in refrigerating circulation system at thermal source respectively in the first cold warm water regenerative apparatus and the second cold warm water regenerative apparatus, so can the while effectively utilize evaporimeter and these two equipment of condenser during with refrigerating circulation system and generate cold water and warm water, so thermal loss can suppress regenerative operation the time at the operation thermal source.
Description of drawings
Fig. 1 is the refrigerant loop figure of freezing equipment one embodiment of the present invention;
Fig. 2 is and last identical refrigerant loop figure;
Fig. 3 is and last identical refrigerant loop figure;
Fig. 4 is and last identical refrigerant loop figure;
Fig. 5 is enthalpy, pressure line chart.
The specific embodiment
Following with reference to the description of drawings embodiments of the invention.
Fig. 1 is the refrigerant loop figure of freezing equipment one embodiment of the present invention.In this freezing equipment 100, have: mainly the thermal source that drives with night electricity with refrigerating circulation system 101, constitute the first cold warm water regenerative apparatus 102 of so-called storage hot water storgae, as refrigerating plant 103, the second cold warm water regenerative apparatuses 104 in the showcase in shop or large-scale refrigerating storehouse etc., carry out the idle call refrigerating circulation system 105 of air-conditioning to using air-conditioned room.
Thermal source connects first compressor, 1, the first cross valve 2, the first heat exchangers, 3, the first decompressors 4 and second heat exchanger 5 in turn with refrigerating circulation system 101 usefulness refrigerant pipings; Assisted decompression device 6 and air heat source formula the 6th heat exchanger 7 are connected in series between first heat exchanger 3 and first decompressor 4.The 8th, pressure fan.
This thermal source makes first heat exchanger 3 play heat release thermal source or heat absorption thermal source with refrigerating circulation system 101 by suitable switching first cross valve 2, makes second heat exchanger 5 play heat absorption thermal source or heat release thermal source simultaneously.
The first cold warm water regenerative apparatus 102 contains storage hot-water cylinder 11.Bottom at this storage hot-water cylinder 11 couples together the flow pipe 13 of supplying with the feed pipe 12 of municipal water to storage hot-water cylinder 11 and the water in the hot-water cylinder 11 is store in circulation in first heat exchanger 3.This flow pipe 13 connects toward pipe 14, and this connects first heat exchanger 3 toward pipe 14 by pump 15.This first heat exchanger 3 connects to return manages 16, returns pipe 16 at this and is connected by the top of recurrent canal 17 with storage hot-water cylinder 11.
Middle part at this storage hot-water cylinder 11 connects warm water supply pipe 20, hot-water supplies such as unshowned bathing pool and hot water supply device in these warm water supply pipe 20 connection layouts.In addition, return pipe 16 and connect electrodynamic type triple valve 18, between the upstream of this triple valve 18 and pump 15, connect so-called short-circuit cycle pipe 19.
This first cold warm water regenerative apparatus 102 for example connects the showcase in shop or the refrigerating plant 103 of large-scale refrigeration, freezer etc., when this refrigerating plant 103 is stored cold water at this first cold warm water regenerative apparatus 102, as described below, can utilize the supercooling operation of this cold water.
In this structure, be connected with two refrigerating plants 103, wherein arbitrary refrigerating plant 103 is all by refrigerant piping be linked in sequence the 3rd compressor 21A, 21B, with condenser 22A, the 22B that the cold warm water of storing hot-water cylinder 11 carries out heat exchange, the 3rd decompressor 23A, 23B and evaporimeter 24A, 24B.Each condenser 22A, 22B and the water pipe arrangement 25 that is connected on the described flow pipe 13 are connected in series.This water pipe arrangement 25 is connected between flow pipe 13 and the electrodynamic type triple valve 26, and the recurrent canal 17 between this triple valve 26 and described another triple valve 18 and the storage hot-water cylinder 11 is connected.The 27th, pump.
The second cold warm water regenerative apparatus 104 has heat-accumulator tank 31, connects the water pipe arrangement 33,34 of water or refrigerating medium circulation is connected between this heat-accumulator tank 31 and second heat exchanger 5, and one of them water pipe arrangement 34 connects pump 35.In addition, 5 heat release thermals source of second heat exchanger are done the time spent and are stored warm water in this heat-accumulator tank 31, play the heat absorption thermal source and make time spent storage cold water (being ice at this moment).
The 5th heat exchanger 46 and accumulator 47 that idle call refrigerating circulation system 105 connects second compressor 41, second cross valve 42, the 3rd heat exchanger 43 in turn, carries out the 4th heat exchanger 44, second decompressor 45 of heat exchange, carries out heat exchange with air in the room that uses air-conditioning with cold warm water in the heat-accumulator tank 31.In addition, the bypass circulation 48 that also has bypass the 4th heat exchanger 44.This bypass circulation 48 connects switch valve 49.The 50th, switch valve, 43A are pressure fans.In this refrigerating circulation system 105, can utilize the supercooling operation or the cold-producing medium heating operation of the warm water, cold water and/or the ice that are stored in the heat-accumulator tank 31.In addition, in described formation, being stored in the hot-water cylinder 11 is a kind of in warm water or the cold water, and being stored in the heat-accumulator tank 31 is a kind of in warm water or the ice (cold water).
In described formation, enclosing high-pressure side in service at thermal source with refrigerating circulation system 101 is the cold-producing medium of supercritical pressure, for example carbon dioxide (CO 2) cold-producing medium.CO 2When cold-producing medium is enclosed, according to for example summer ambient temperature at 30 ℃ or when being higher than 30 ℃, or load when becoming big etc. condition, shown in the enthalpy of Fig. 5, pressure line chart, when operation, move in the high tension loop with supercritical pressure.Cold-producing medium with the supercritical pressure operation in high tension loop removes CO 2Outside the cold-producing medium, for example also have ethene, Tai Baolan (デ イ ボ ラ Application), ethane, nitrogen dioxide etc.What represent in Fig. 5 is a state of compressor 1 outlet.Cold-producing medium is by heat exchanger 3 circulations, thus up to b state cooling heat release in water.Cold-producing medium is cooled to the c state as required.Cold-producing medium is reaching the d state by 4 step-downs of first decompressor then, forms gas/liquid two-phase mixture at this.Cold-producing medium utilizes the evaporation of liquid phase to absorb heat in second heat exchanger 5.State e is the intermediateness of heat exchanger 5, and the cold-producing medium of gas phase is heated to the suction line that flows to compressor 1 behind the f state.
In this structure, though the high pressure single phase gas cold-producing medium of discharging from compressor 1 does not have condensation, cooling in heat exchanger 3 can be cooled to than the coolant-temperature gage c state in low several years.Water temperature rises to 80 ℃ or be higher than 80 ℃ approximately as a result.
In addition, in this structure, be provided for being controlled at the controller 106 of thermal source with first compressor, 1 operation in the refrigerating circulation system 101.This controller 106 is night electricity band service time (for example late 8 are arrived 6 points early) driving first compressor 1 setting the cheap electric power of use only.
The below action of explanation present embodiment.
A. first regenerative operation
This regenerative operation as shown in Figure 1, is stored the warm water heat in heat-accumulator tank 31, store the cold water heat in storage hot-water cylinder 11, first compressor 1 of use night electricity driving heat source in the refrigerating circulation system 101.In service at this, at first thermal source with in the refrigerating circulation system 101 shown in thick line, the cold-producing medium of discharging from first compressor 1 circulates in first cross valve 2, second heat exchanger 5, first decompressor 4 and first heat exchanger 3, returns in first compressor 1 through first cross valve 2.Assisted decompression device 6 standard-sized sheets, pressure fan 8 stops.Heat release in described second heat exchanger 5 utilizes this heat of emitting to generate warm water.I.e. driving pump 35 in the second cold warm water regenerative apparatus 104, via water pipe arrangement 33,34, water or refrigerating medium are stored in the warm water heat in the heat-accumulator tank 31 in second heat exchanger 5 and 31 circulations of heat-accumulator tank.In addition, heat absorption in first heat exchanger 3 utilizes the heat of this absorption to generate cold water.At this moment, in the first cold warm water regenerative apparatus 102 driving pump 15 make the municipal water of storage in the hot-water cylinder 11 through water pipe arrangement 3,14,16,17 in first heat exchanger 3 and 11 circulations of storage hot-water cylinder, the cold water heat is stored in the hot-water cylinder 11.
In service at this, as not needing accumulation of heat in heat-accumulator tank 31, pump 35 then out of service, operation pressure fan 8 also can replace second heat exchanger 5 and makes the 6th heat exchanger 7 performance functions of air heat source formula.In addition, as not needing accumulation of heat in storage hot-water cylinder 11, pump 15 then out of service, operation pressure fan 8 also can replace first heat exchanger 3 and makes the 6th heat exchanger 7 performance functions of air heat source formula.
B. utilize the warm water heating operation
At this heating operation, as shown in Figure 2, utilize the warm water heat in the heat-accumulator tank 31 to carry out heating.At this moment, in refrigerating circulation system 105, shown in thick line, the cold-producing medium of discharging from second compressor 41 circulates in second cross valve 42, the 5th heat exchanger 46, second decompressor 45 and the 4th heat exchanger 44 and second heat exchanger 43, returns in second compressor 41 through second cross valve 42.Compare with general air conditioner at this state, because be in the 4th heat exchanger 44 with the agent of warm water heating and cooling, so can improve heating efficient.In addition, when outside air temperature is low, can utilize this warm water heat to prevent that effectively the 3rd heat exchanger 43 from freezing, this idle call refrigerating circulation system 105 of continuously-running.
When described heat-accumulator tank 31 no warm water, also can close switch valve 50 and open switch valve 49.At this state, refrigerant bypass the 4th heat exchanger 44 is recycled to the 3rd heat exchanger 43 through bypass circulation 48.
C. utilize the freezing operation of cold water
This freezing operation utilizes the cold water heat operation of storage hot-water cylinder 11 when refrigerating plant 103 operations shown in the thick line of Fig. 2.Freezing in service at this, the cold-producing medium of being discharged by the 3rd compressor 21A, 21B in refrigerating plant 103 circulates in condenser 22A, 22B, the 3rd decompressor 23A, 23B and evaporimeter 24A, 24B, returns the 3rd compressor 21A, 21B.At this moment, process pump 27, the cold water in the storage hot-water cylinder 11 circulate in condenser 22A, 22B and return storage hot-water cylinder 11 through triple valve 26.In service at this, make the cold-producing medium supercooling of refrigerating plant 103 sides by the cold water that in condenser 22A, 22B, circulates, so can improve the freezing efficiency of refrigerating plant 103.Thereby, can cut down the peak of power consumption on the daytime in summer that electric power consumption increases.
D. second regenerative operation
This regenerative operation as shown in Figure 3, is stored cold water (ice) heat in heat-accumulator tank 31, store the warm water heat in storage hot-water cylinder 11, first compressor 1 of use night electricity driving heat source in the refrigerating circulation system 101.In service at this, at first thermal source with in the refrigerating circulation system 101 shown in thick line, the cold-producing medium of discharging from first compressor 1 circulates in first cross valve 2, first heat exchanger 3, first decompressor 4 and second heat exchanger 5, returns in first compressor 1 through first cross valve 2.Assisted decompression device 6 standard-sized sheets, pressure fan 8 stops.Heat release in first heat exchanger 3 utilizes this heat of emitting to generate warm water.I.e. driving pump 15 in the first cold warm water regenerative apparatus 102, the municipal water in the accumulation of heat water pot 11, is stored in the warm water heat in the accumulation of heat water pot 11 in first heat exchanger 3 and 11 circulations of accumulation of heat water pot via water pipe arrangement 3,14,16,17.In addition, heat absorption in second heat exchanger 5 utilizes the heat of this absorption to generate cold water.At this moment, driving pump 35 makes water or refrigerating medium in second heat exchanger 5 and jar 31 circulations of storage heat via water pipe arrangement 33,34 in the second cold warm water regenerative apparatus 104, and cold water (ice) heat is stored in the heat jar 31.
In service at this, as not needing accumulation of heat in heat-accumulator tank 31, pump 35 then out of service, operation pressure fan 8 also can replace second heat exchanger 5 and makes the 6th heat exchanger 7 performance functions of air heat source formula.Can utilize air heat source in storage hot-water cylinder 11, to store hot water by bringing into play such function.In addition, as not needing accumulation of heat in storage hot-water cylinder 11, pump 15 then out of service, operation pressure fan 8 also can replace first heat exchanger 3 and makes the 6th heat exchanger 7 performance functions of space thermal source formula.
E. utilize cold water (ice) refrigerating operaton
At this refrigerating operaton, as shown in Figure 4, utilize cold water (ice) heat in the heat-accumulator tank 31 to freeze.At this moment, in idle call refrigerating circulation system 105, shown in thick line, the cold-producing medium of discharging from second compressor 41 circulates in second cross valve 42, the 3rd heat exchanger 43, the 4th heat exchanger 44, second decompressor 45 and the 5th heat exchanger 46, returns in second compressor 41 through second cross valve 42 and accumulator 47.Compare with general air conditioner at this state, because be in the 4th heat exchanger 44 with cold water supercooling cold-producing medium, so can improve refrigerating efficiency.
In addition, when described heat-accumulator tank 31 is not stored the heat of cold water (ice), if closing switch valve 50 opens switch valve 49 and moves, refrigerant bypass the 4th heat exchanger 44 then, flow to second decompressor 45 through bypass circulation 48, so can carry out refrigerating operaton without cold water (ice), can form the continuous cooling operation from the daytime to the night.
F. heat supply water
Shown in the thick line of Fig. 4, storage hot-water cylinder 11 connects warm water supply pipes 20, is connected with hot-water supplies such as abridged bathing pool and hot water supply device among the figure in this warm water supply pipe 20.Thereby, in this structure, both can carry out the above-mentioned refrigerating operaton that utilizes cold water, also can supply with hot-water supply to the warm water in the storage hot-water cylinder 11.
More than based on an embodiment the present invention has been described, the invention is not restricted to this, can carry out all changes.For example in described structure, in refrigerant loop, enclose CO 2Cold-producing medium also is not limited thereto, and much less also is applicable to inclosure freon series cold-producing medium in addition.

Claims (8)

1, a kind of freezing equipment, it is characterized in that having: utilize thermal source that night electricity drive to generate cold water and warm water with refrigerating circulation system, be stored in this thermal source respectively and be stored in the aircondition that the hot-water supply of the warm water of the first cold warm water regenerative apparatus, the cold water that is stored in the second cold warm water regenerative apparatus utilize as a part of thermal source of idle call refrigerating circulation system with the first cold warm water regenerative apparatus of cold water that produces in the refrigerating circulation system and warm water and the second cold warm water regenerative apparatus, utilization.
2, a kind of freezing equipment, it is characterized in that, have: the thermal source refrigerating circulation system, it connects first compressor, first cross valve, first heat exchanger, first decompressor and second heat exchanger in turn with refrigerant piping, make first heat exchanger play heat release thermal source or heat absorption thermal source by switching first cross valve, make second heat exchanger play heat absorption thermal source or heat release thermal source simultaneously; The first cold warm water regenerative apparatus, it is connected by the water pipe arrangement with first heat exchanger, plays the heat release thermal source at this first heat exchanger and makes time spent storage warm water, does the time spent at a heat absorption thermal source and stores cold water; Refrigerating plant, it is connected with this first cold warm water regenerative apparatus, can utilize the supercooling operation of this cold water when this first cold warm water regenerative apparatus is stored cold water; The second cold warm water regenerative apparatus, it is connected by the water pipe arrangement with described second heat exchanger, plays the heat release thermal source at this second heat exchanger and makes time spent storage warm water, does the time spent at a heat absorption thermal source and stores cold water; The idle call refrigerating circulation system, it is connected with the second cold warm water regenerative apparatus, can utilize the supercooling operation or the heating and cooling agent operation of the cold warm water that is stored in this second cold warm water regenerative apparatus.
3, freezing equipment as claimed in claim 2, it is characterized in that described idle call refrigerating circulation system utilizes refrigerant piping to connect second compressor, second cross valve, the 3rd heat exchanger in turn, carry out the 4th heat exchanger, second decompressor of heat exchange and the 5th heat exchanger that carries out heat exchange with air in the room that uses air-conditioning with cold warm water in the described second cold warm water regenerative apparatus.
4, freezing equipment as claimed in claim 3 is characterized in that, described idle call refrigerating circulation system has the bypass circulation of bypass the 4th heat exchanger.
5, as each described freezing equipment in the claim 2 to 4, it is characterized in that, described refrigerating plant utilize refrigerant piping be linked in sequence the 3rd compressor, with the described first cold warm water regenerative apparatus in the cold warm water condenser that carries out heat exchange, the 3rd decompressor and evaporimeter.
As each described freezing equipment in the claim 2 to 5, it is characterized in that 6, described thermal source has the 6th heat exchanger of air heat source formula with refrigerating circulation system between first heat exchanger and first decompressor.
7, as each described freezing equipment in the claim 2 to 6, it is characterized in that having and utilize night electricity to drive the control device of described thermal source with refrigerating circulation system.
8, as each described freezing equipment in the claim 2 to 7, it is characterized in that, fill the cold-producing medium that the high-pressure side reaches supercritical pressure with refrigerating circulation system at described thermal source.
CNB2005100628933A 2004-07-07 2005-04-05 Refrigeration system Expired - Fee Related CN100419349C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004201001A JP2006023006A (en) 2004-07-07 2004-07-07 Refrigeration facility
JP201001/04 2004-07-07

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Publication Number Publication Date
CN1719159A true CN1719159A (en) 2006-01-11
CN100419349C CN100419349C (en) 2008-09-17

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CNB2005100628933A Expired - Fee Related CN100419349C (en) 2004-07-07 2005-04-05 Refrigeration system

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EP (1) EP1614980A2 (en)
JP (1) JP2006023006A (en)
CN (1) CN100419349C (en)

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