CN101029786A - Refrigeration cycle device - Google Patents
Refrigeration cycle device Download PDFInfo
- Publication number
- CN101029786A CN101029786A CN200710084711.1A CN200710084711A CN101029786A CN 101029786 A CN101029786 A CN 101029786A CN 200710084711 A CN200710084711 A CN 200710084711A CN 101029786 A CN101029786 A CN 101029786A
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- hot water
- water
- radiator
- temperature
- refrigerant
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Images
Classifications
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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
- 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
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
-
- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
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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
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- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
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- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
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- F25B2700/21161—Temperatures of a condenser of the fluid heated by the condenser
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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
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/027—Condenser control arrangements
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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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
-
- 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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
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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
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
A refrigerating circulation device (1) is provided, which comprises a compressor (10), a radiator (11), an expansion valve (14), and a coolant circuit (2) for an evaporator (16); wherein, the device (1) delivers heating effect by means of heat dissipation from the radiator (11) and delivers cooling effect by means of heat absorption by the evaporator (16). According to an indicator that indicates the heat dissipation capacity of the radiator (11), the radiator (11) is controlled to dissipate appropriate heat to ensure the cooling effect of the evaporator (16). In that way, in the refrigerating circulation device that utilizes the heat obtained from the evaporator under heat absorption effect in the heating process, the problem of degraded cooling capability of the evaporator caused by insufficient or reduced heat dissipation from the radiator can be avoided, and thereby the cooling effect is maintained.
Description
Technical field
The present invention relates to have the freezing cycle device in refrigerant (the being cold-producing medium) loop that comprises compressor, radiator, decompressor and evaporimeter, particularly relate to by heat radiation and bring into play heat effect, and bring into play the freezing cycle device of cooling effect by the heat absorption of evaporimeter from radiator.
Background technology
Refrigeration in the past or freezing etc. in, as the method for cooling cooled object, adopt the freezing cycle device of steam compression type freeze cycle to be widely used.In this freezing cycle device, utilize the heat absorption of the refrigerant of evaporimeter to bring into play cooling effect and cool off cooled object, heat that the heat radiation by the refrigerant of radiator produces is discharged in atmosphere etc.
In recent years, in this freezing cycle device, utilize radiator in the past to discharge in the atmosphere and unemployed heat attempts realizing effective utilization of energy, the device that provides that for example heat radiation of radiator is used for hot water also is developed.
Like this, be used for hot water and provide, thereby can realize effective utilization of energy by will discharge heat in the atmosphere in the past.In addition, discharging under the situation of heat to atmosphere in the radiator like that in the past, the problem that the discharge of this heat can cause the temperature on every side of freezing cycle device to rise provide but be used for hot water by above-mentioned such heat with radiator, thereby such problem can be solved.
Patent documentation 1: the spy opens the 2005-106360 communique
But, when the above-mentioned heat that produces in like that with evaporimeter is adding under the situation of pining for utilizing by radiator, because cooling load increases or heating load reduces, can make the not enough or reduction of heat dissipation capacity of the refrigerant of radiator, the cooling capacity that has so just produced evaporimeter reduces, and brings the problem of obstacle to the cooling of cooled object.
Summary of the invention
The present invention researches and develops in view of the above problems, its purpose is that the heat that can produce in the heat absorption by evaporimeter is being added in the freezing cycle device of pining for utilizing by radiator, avoid the problem of the cooling capacity reduction of the heat dissipation capacity deficiency of radiator or the evaporimeter that reduction causes, keep cooling effect.
Therefore, the freezing cycle device that first technical scheme of the present invention provides has the refrigerant loop that comprises compressor, radiator, decompressor and evaporimeter, bring into play heat effect by heat radiation, and bring into play cooling effect by the heat absorption of evaporimeter from radiator.This freezing cycle device is according to the index that can grasp the heat dissipation capacity of radiator, guarantees to keep the action of the regulation heat dissipation capacity of the required heat dissipation capacity of the cooling effect of evaporimeter.
The freezing cycle device that second technical scheme of the present invention provides has refrigerant loop and the hot water storing tank that comprises compressor, radiator, decompressor and evaporimeter, by making water and radiator in this hot water storing tank carry out heat exchange, generate hot water and be stored in the hot water storing tank thereby be used to heat radiation from this radiator, and bring into play cooling effect by the heat absorption of evaporimeter.This freezing cycle device has the discharger to the water in water supply installation that supplies water in the hot water storing tank and the discharge hot water storing tank, when the water in the hot water storing tank or be used to make water in radiator and the hot water storing tank to carry out in the temperature of the water that circulates in the heat exchanger of heat exchange or the described radiator or the temperature of discharging the refrigerant of this radiator rises under the situation more than the setting, the water in the hot water storing tank is discharged by discharger.
The freezing cycle device that the 3rd technical scheme of the present invention provides has the refrigerant loop that comprises compressor, radiator, decompressor and evaporimeter, by making water and radiator carry out heat exchange, thereby be used to generate hot water, and bring into play cooling effect by the heat absorption of evaporimeter from the heat radiation of this radiator.This freezing cycle device has and is used to cool off the water-cooling apparatus that carries out the water of heat exchange with radiator, under the temperature of carrying out in the temperature of water of heat exchange or the radiator with radiator or discharge the refrigerant of this radiator rises to situation more than the setting, cool off the water that this and radiator carry out heat exchange by water-cooling apparatus.
The freezing cycle device that the 4th technical scheme of the present invention provides, it has the refrigerant loop that comprises compressor, radiator, decompressor and evaporimeter, by making water and radiator carry out heat exchange, thereby be used to generate hot water, and bring into play cooling effect by the heat absorption of evaporimeter from the heat radiation of this radiator.This freezing cycle device has second radiator that is used to cool off the refrigerant of discharging described radiator, under the temperature of carrying out in the temperature of water of heat exchange or the radiator with radiator or discharge the refrigerant of this radiator rises to situation more than the setting, discharge the refrigerant of described radiator by the cooling of second radiator.
The freezing cycle device that the 5th technical scheme of the present invention provides has the refrigerant loop that comprises compressor, radiator, decompressor and evaporimeter, by making water and radiator carry out heat exchange, thereby be used to generate hot water, and bring into play cooling effect by the heat absorption of evaporimeter from the heat radiation of this radiator.This freezing cycle device has second radiator that is connected side by side with radiator, under the temperature of carrying out in the temperature of water of heat exchange or the radiator with radiator or discharge the refrigerant of this radiator rises to situation more than the setting, flow into refrigerant to second radiator.
Structure according to above-mentioned first technical scheme, because this freezing cycle device has the refrigerant loop that comprises compressor, radiator, decompressor and evaporimeter, heat effect is brought into play in heat radiation by radiator, and bring into play cooling effect by the heat absorption of evaporimeter, the index that this freezing cycle device can be grasped according to the heat dissipation capacity of radiator guarantees to keep the action of the regulation heat dissipation capacity of the required heat dissipation capacity of the cooling effect of evaporimeter.So, can avoid the reduction of the cooling capacity of evaporimeter reliably.
Structure according to above-mentioned second technical scheme, because this freezing cycle device has the compressor of comprising, radiator, the refrigerant loop and the hot water storing tank of decompressor and evaporimeter, by making water and radiator in this hot water storing tank carry out heat exchange, thereby the heat radiation that utilizes this radiator generates hot water and is stored in the hot water storing tank, and cooling effect is brought into play in the heat absorption by evaporimeter, this freezing cycle device has the discharger to the water in water supply installation that supplies water in the hot water storing tank and the discharge hot water storing tank, when the water in the hot water storing tank or be used to make water in radiator and the hot water storing tank to carry out the temperature of the water that circulates in the heat exchanger of heat exchange, in the perhaps described radiator or the temperature of discharging the refrigerant of this radiator rise under the above situation of setting, by discharger the water in the hot water storing tank is discharged.So, can reduce the temperature of carrying out the water of heat exchange with radiator.
Thus, owing to can guarantee the heat dissipation capacity of the refrigerant of radiator, so can keep the cooling capacity of evaporimeter.
In addition, in second technical scheme, for example form the high-temperature-hot-water conveying end and the low-temperature water heating conveying end of being located at the bottom of hot water storing tank on the top of being located at hot water storing tank, discharger is if be configured in the below of high-temperature-hot-water conveying end and be configured in low-temperature water heating conveying end top, then can do one's utmost to suppress heat loss, and do not have obstacle ground to discharge water in the hot water storing tank to the utilization of the water (hot water) of the high temperature that is stored in hot water storing tank, reduce the temperature of carrying out the water of heat exchange with radiator from discharger.
Structure according to above-mentioned the 3rd technical scheme, this freezing cycle device has the compressor of comprising, radiator, the refrigerant loop of decompressor and evaporimeter, by making water and radiator carry out heat exchange, thereby utilize the heat radiation of this radiator to generate hot water, and bring into play cooling effect by the heat absorption of evaporimeter, this freezing cycle device has and is used to cool off the water-cooling apparatus that carries out the water of heat exchange with radiator, when carrying out the temperature of the water of heat exchange with radiator, perhaps in the radiator or the temperature of discharging the refrigerant of this radiator rise under the above situation of setting, cool off the water that this and radiator carry out heat exchange by water-cooling apparatus.So, can reduce the temperature of carrying out the water of heat exchange with radiator.Thus, owing to can guarantee the heat dissipation capacity of the refrigerant of radiator, so can keep the cooling capacity of evaporimeter.
Structure according to above-mentioned the 4th technical scheme, this freezing cycle device, it has the compressor of comprising, radiator, the refrigerant loop of decompressor and evaporimeter, by making water and radiator carry out heat exchange, thereby utilize the heat radiation of this radiator to generate hot water, and bring into play cooling effect by the heat absorption of evaporimeter, this freezing cycle device has second radiator that is used to cool off the refrigerant of discharging described radiator, when carrying out the temperature of the water of heat exchange with radiator, perhaps in the radiator or the temperature of discharging the refrigerant of this radiator rise under the above situation of setting, discharge the refrigerant of described radiator by the cooling of second radiator.So, can guarantee that refrigerant keeps the required heat dissipation capacity of cooling effect of evaporimeter.Thus, can keep the cooling capacity of evaporimeter.
Structure according to above-mentioned the 5th technical scheme, this freezing cycle device has the compressor of comprising, radiator, the refrigerant loop of decompressor and evaporimeter, by making water and radiator carry out heat exchange, thereby utilize the heat radiation of this radiator to generate hot water, and bring into play cooling effect by the heat absorption of evaporimeter, this freezing cycle device has second radiator that is connected side by side with radiator, carry out the temperature of the water of heat exchange with radiator, perhaps in the radiator or the temperature of discharging the refrigerant of this radiator rise under the above situation of setting, flow into refrigerant to second radiator.So can guarantee that refrigerant keeps the required heat dissipation capacity of cooling effect of evaporimeter by this second radiator.Thus, can keep the cooling capacity of evaporimeter.
Description of drawings
Fig. 1 is the summary construction diagram of the freezing cycle device of embodiments of the invention 1.
Fig. 2 is the summary construction diagram of the freezing cycle device of embodiments of the invention 2.
Fig. 3 is the summary construction diagram of the freezing cycle device of embodiments of the invention 3.
Fig. 4 is the summary construction diagram of the freezing cycle device of embodiments of the invention 4.
Fig. 5 is the summary construction diagram of the freezing cycle device of embodiments of the invention 5.
Fig. 6 is the profile of schematic configuration of cooled containers of the freezing cycle device of Fig. 5.
Fig. 7 is the profile of schematic configuration of evaporimeter of the freezing cycle device of Fig. 5.
The explanation of Reference numeral
1,100,200,300,500 freezing cycle devices
2,502 refrigerant loops
3,503 hot water provide the loop
5,505 hot water storage loops
10,510,580 compressors
11,511,581 radiators
12,512,582 water passages
13,513,583 heat exchangers
14,514,584 expansion valves
16,516,586 evaporimeters
30,530 hot water storing tanks
36,536 dischargers
80 water-cooling apparatus
90,95 second radiators
The specific embodiment
Below, describe the enforcement specific embodiments of the invention in detail with reference to accompanying drawing.
(embodiment 1)
Fig. 1 is a summary construction diagram of implementing the freezing cycle device of one embodiment of the invention.The freezing cycle device 1 of present embodiment has: contain compressor 10, radiator 11, as the refrigerant loop 2 of the expansion valve 14 and the evaporimeter 16 of decompressor; Provide loop 3 with the hot water that contains hot water storing tank 30, it utilizes the heat radiation of radiator 11 to bring into play heat effect, and utilizes the heat absorption of evaporimeter 16 to bring into play cooling effect.Promptly, this freezing cycle device 1 carries out heat exchange by making water in hot water provides in the loop 3 hot water storing tank 30 of circulation or hot water and radiator 11, thereby generate the hot water of high temperature by the heat radiation of radiator 11, be stored in the hot water storing tank 30, and bring into play cooling effect and cool off cooled object by the heat absorption of evaporimeter 16.
Above-mentioned refrigerant loop 2 with compressor 10, radiator 11, as the expansion valve 14 of decompression means and evaporimeter 16 in turn pipe arrangement connect into ring-type.Particularly, the high pressure coolant piping 40 that is connected the discharge side of compressor 10 is connected with the inlet of radiator 11.This radiator 11 is the coolant paths that constitute the part of heat exchanger 13, and being configured to provide the water passage 12 in loop 3 to carry out heat exchange with hot water.This heat exchanger 13 is to make radiator 11 and hot water provide the hot water storing tank 30 interior water in loop 3 to carry out the heat exchanger of the water-refrigerant heat exchange type of heat exchange, and the water passage 12 that provides loop 3 by coolant path and hot water as radiator 11 constitutes.Form the inlet of coolant path of radiator 11 and the outlet of water passage 12 on one end of this heat exchanger 13, form the outlet of coolant path of radiator 11 and the inlet of water passage 12 at its other end.Therefore, in this heat exchanger 13, become the relative flow direction with the water that in water passage 12, flows from compressor 10 refrigerants that discharge, mobile HTHPs radiator 11.
On the other hand, the coolant piping 41 that is connected with the outlet of radiator 11 is connected with the inlet of expansion valve 14.Expansion valve 14 is that be used for will be by the decompressor of the refrigerant decompression of radiator 11 heat radiation, and the coolant piping 42 that is connected with the outlet of this expansion valve 14 is connected with the inlet of evaporimeter 16.And, connecting an end of suction line 45 in the outlet of evaporimeter 16, the other end of suction line 45 is connected with the low-pressure side (suction portion) of compressor 10.In addition, get involved on this suction line 45 that the low-pressure side of evaporimeter 16 and compressor is connected and (dress is situated between) be installed have protection compressor 10 to make it can not be subjected to sucking the accumulator 17 of the influence of unfavorable condition that liquid refrigerants damages etc. because of compressor.
In addition, the described high pressure coolant piping 40 in refrigerant loop 2 is provided with the discharge temperature sensor T1 of the temperature of the refrigerant that is used to detect the HTHP of discharging from compressor 10.This discharge temperature sensor T1 is connected with control device described later.
In addition, in above-mentioned refrigerant loop 2, enclose carbon dioxide as natural refrigerant as refrigerant.And the on high-tension side pressure in this refrigerant loop 2 rises and surpasses critical pressure, so the excessive critical cycle (Move Pro circle サ イ Network Le of this refrigerant circulation becoming).In addition, the lubricating oil as compressor 10 for example uses mineral oil, alkylbenzene oil, ether oil, ester oil, PAG (PAG), POE (polyalcohol ether) etc.
On the other hand, thereby described hot water provides loop 3 by receive heat from the refrigerant that flows the radiator 11 in rising refrigerant loop 2 water to be heated, produce the hot water of high temperature, this loop 3 is by with the hot water storage loop 5 of this hot water storage hot water storing tank 30 in, provide the hot water generator 34 of load equipment and discharger described later 36 to constitute to the water supply installation 32 of water supply in the hot water storing tank 30, the hot water supply hot water that will be stored in the hot water storing tank 30.
Hot water storage loop 5 by with the water passage 12 of hot water storing tank 30, circulating pump 31, flow rate regulating valve 35, heat exchanger 13 in turn pipe arrangement connect into ring-type and constitute.That is, the low temperature pipe arrangement 47 that connects of the bottom of hot water storing tank 30 is connected with the inlet of water passage 12 on the other end that is formed on heat exchanger 13 via circulating pump 31, flow rate regulating valve 35.This low temperature pipe arrangement 47 takes out the hot water (water) that is stored in the low temperature in this hot water storing tank 30 from the below of hot water storing tank 30, and inflow heat exchanger 13 is so it is the pipe arrangement of inlet that connects the water passage 12 of the bottom of hot water storing tank 30 and heat exchanger 13.Rising circulating pump 31 is to be used to parts that water is circulated in hot water storage loop 5.The water that the circulating pump 31 of present embodiment will take out from the bottom of hot water storing tank 30 be discharged to heat exchanger 13 sides, the current in the water passage 12 of this heat exchanger 13 as described above relatively the refrigerant streams in the radiator 11 be relative current to and make water circulation hot water storage loop 5 in (among Fig. 1 according to water is circulated).In addition, flow rate regulating valve 35 is the valve gears that are used to regulate the flow of the warm water in the hot water storage loop 5 of circulating by this circulating pump 31, by the switching and the aperture of described control device control valve.
On the other hand, connect an end of high temperature pipe arrangement 48 in the outlet of the water passage 12 that an end of heat exchanger 13 forms, the other end of this high temperature pipe arrangement 48 is connected to the top (upper end of present embodiment) that above-mentioned hot water provides jar 30.Middle part, the way of this high temperature pipe arrangement 48 be provided with detection by heat exchanger 13 by the heat radiation of radiator 11 generate the hot water that enters the high temperature in the hot water storing tank 30 temperature go out hot water temperature's sensor (going out Soup temperature セ Application サ) T2.In addition, be provided for detecting the temperature sensor T6 of the temperature of the water of circulation in heat exchanger 13 at the middle part, way of above-mentioned low temperature pipe arrangement 47.And, go out hot water temperature's sensor T2 and be connected with control device respectively with temperature sensor T6.
On the one hand, above-mentioned hot water storing tank 30 is that the hot water that will use the high temperature that generates from the heat radiation of radiator 11 in heat exchanger 13 is stored in inner jar, and outer peripheral face integral body is covered by heat-barrier material, forms to be stored in the structure that inner hot water is difficult to turn cold.
The top of this hot water storing tank 30 connects above-mentioned high temperature pipe arrangement 48, and is provided with from this hot water storing tank 30 interior high-temperature-hot-water conveying ends 37 that take out the hot water of high temperature.The high-temperature-hot-water that connects hot water generator 34 on this high-temperature-hot-water conveying end 37 takes out pipe arrangement 34A.In addition, the bottom of hot water storing tank 30 connects above-mentioned low temperature pipe arrangement 47, and is provided with from this hot water storing tank 30 interior low-temperature water heating conveying ends 38 that take out the hot water of low temperature.The low-temperature water heating that connects hot water generator 34 on this low-temperature water heating conveying end 38 takes out pipe arrangement 34B.
In the above-mentioned hot water generator 34, the hot water that will take out the high temperature in the hot water storing tank 30 that pipe arrangement 34A takes out from high-temperature-hot-water as required and with take out the low-temperature water heating that pipe arrangement 34B takes out from low-temperature water heating and mix, after being adjusted to suitable temperature, supplying with hot water load equipment is provided.Providing the hot water of load equipment to provide by not shown hot water to hot water provides valve to carry out.It for example is that hot water provides the fire hose of usefulness first-class that hot water provides valve, is not limited to one, also can be provided with a plurality of.
In addition, the water supply piping 32A that connects water supply installation 32 in the bottom of hot water storing tank 30 via pressure-reducing valve 32B.This water supply installation 32 is to the device of water is provided in the hot water storing tank 30, and providing the suitable water of the use amount of the hot water in jars 30 with hot water for example is that municipal water is from water supply piping 32A from hot water storing tank in this hot water storing tank 30 of 30 underfeeds.This water supply piping 32A goes up to get involved feed water valve (not shown) is set, and this feed water valve forms the state of often opening usually.
In addition, the bottom of hot water storing tank 30 connects the dump valve and the discharge pipe (not shown) of discharging the hot water in the hot water storing tank 30 when this hot water storing tank 30 does not use.
At this, above-mentioned discharger 36 is the devices that are used to discharge the water (hot water) in the hot water storing tank 30, is configured in the below of high-temperature-hot-water conveying end 37 and the top configuration of low-temperature water heating conveying end 38.In the present embodiment, the below of the high-temperature-hot-water conveying end 37 of hot water storing tank 30 and the top of low-temperature water heating conveying end 38 connect the hot water discharge pipe 36A of this discharger 36 via hot water dump valve 36B.Like this, by discharger 36 being configured in the below of high-temperature-hot-water conveying end 37 and the top of low-temperature water heating conveying end 38, thus the hot water in the hot water storing tank 30 that this discharger 36 takes out be than the hot water temperature who takes out from high-temperature-hot-water conveying end 37 low and than the coolant-temperature gage that takes out from low-temperature water heating conveying end 38 high the hot water of temperature.Therefore, open hot water dump valve 36B, the hot water of temperature can in hot water storing tank 30, discharging.
On the other hand, the outside in hot water storing tank 30 disposes a plurality of hot water storage sensor T4 with appropriate intervals from top to bottom.This hot water storage sensor T4 detects the temperature of the each several part that is stored in the hot water in the hot water storing tank 30 and the sensor that has or not of hot water respectively.Like this,, detect the temperature of each several part, thereby can grasp from the top of hot water storing tank 30, and can detect the amount that is stored in the interior hot water of hot water storing tank 30 to the Temperature Distribution of bottom by changing a plurality of hot water storage sensor of level configurations T4.
And above-mentioned control device is a control device of administering the control of freezing cycle device 1 of the present invention, the running of control compressor 10 and circulating pump 31, the switching of each valve gear (expansion valve 14, flow control valve 35, hot water dump valve 36B) and aperture etc.In addition, connect above-mentioned each sensor T1, T2, T4, T6 on the control device, and then, also connect and be used to detect the cooled object that is cooled off by evaporimeter 16 or the temperature of the space of taking in cooled object or the not shown temperature sensor of outside atmosphere temperature, this control device is controlled the running of freezing cycle device 1 according to these input information.
In addition, the capacity of above-mentioned hot water storing tank 30 must take into full account by determining on the cooling load of the cooled object of evaporimeter 16 cooling in refrigerant loop 2, generation that necessary hot water provides load and each load basis constantly etc.That is, during the cooling operation, what take out from the bottom of hot water storing tank 30 is not the water of low temperature, but the hot water of high temperature, and the water passage 12 of inflow heat exchanger 13, at this moment the heat dissipation capacity of radiator 11 significantly reduces, as a result, the cooling capacity in refrigerant loop 2 and COP also worsen.Therefore, needing to use the capacity of hot water storing tank 30 is that the water passage 12 of inflow heat exchanger 13 is hot water storing tanks of sufficient capacity for often taking out the water of low temperature from the bottom of this hot water storing tank 30.Can suitably study according to use and condition about concrete capacity.
In addition, so-called above-mentioned water of the present invention is: comprise that naturally the cold water that provides in hot water storing tank 30 from water supply installation 32, the hot water that also comprises the hot water that stores the high temperature in the hot water storing tank 30 then provide the general name of the water in whole temperature band territory mobile in the loop 3.Therefore, hot water also is interpreted as the part of water among the present invention.
According to above structure, the action of the freezing cycle device 1 of present embodiment is described.
The action in the refrigerant loop when (1) cooling is turned round
The action in the refrigerant loop 2 when at first, the cooling running being described.Control device according to the cooling load that is required, starts the compressor 10 in refrigerant loop 2 based on each input information (by the information of inputs such as above-mentioned each sensor).Drive this compressor 10 by control device, then from suction line 45 to the low-pressure side (suction portion) of compressor 10 suck low-temp low-pressure cold media gas and with its compression.Thus, the cold media gas of HTHP enters high pressure coolant piping 40 from discharging side, discharges the outside of compressor 10.At this moment, refrigerant is compressed to suitable supercritical pressure.
The refrigerant of the HTHP of discharging from compressor 10 enters in the heat exchanger 13 from the inlet of radiator 11 through high pressure coolant piping 40.And the cold media gas of this HTHP is in the process of the radiator 11 by heat exchanger 13, and the water in the hot water storage loop 5 of flowing in the water passage 12 that is provided with in the mode of carrying out heat exchange with radiator 11 is emitted heat and is cooled formation low temperature.On the other hand, add water in the hot water passageway 12, generate the hot water of high temperature by the thermolysis of this radiator 11.
At this moment, in this radiator 11, the state of refrigerant is the above liquid state of common critical pressure.Promptly, use carbon dioxide as refrigerant in the present embodiment,, do not produce the condensation of refrigerant in the radiator 11 so the refrigerant pressure in the radiator 11 is more than the critical pressure, so towards outlet, the temperature of refrigerant is followed the water-cooled in water passage 12 and is reduced slowly from the inlet of radiator 11.On the other hand, in the water passage 12 in the heat exchanger 13, the temperature of water is from entering the mouth to outlet along with absorbing heat from refrigerant and rising slowly.Like this, use carbon dioxide refrigerant, making the refrigerant pressure in the radiator 11 is more than the critical pressure, thereby existing refrigerant for example HFC class refrigerant is such, compares with the condensation heat radiation under the temperature constant, can carry out high efficiency heat exchange, and, the hot water of generation high temperature.In addition, do in this heat exchanger 13, be oppositely arranged because the coolant path that constitutes radiator 11 and water passage 12 are flowed to as described above like that, so can effectively carry out the heat exchange of water and refrigerant.
Refrigerant by the cryogenic high pressure of radiator 11 cooling is discharged heat exchanger 13 from the outlet of this radiator 11, is expanded by expansion valve 14 by coolant piping 41, forms low pressure, arrives evaporimeter 16 via coolant piping 42.In addition, the state of the refrigerant of the inlet of this evaporimeter 16 is two condition admixtures that liquid refrigerants and steam refrigerant mix.And, in this evaporimeter 16, absorb heat from cooled object, thereby evaporation forms the steam refrigerant by liquid refrigerants.At this moment, cool off cooled object by this heat absorption.In addition, above-mentioned cooled object for example be need cooling or keep low temperature food and beverage, carry out the air under the situation that air is in harmonious proportion, or utilize water, liquid (Block ラ イ Application) and the ice etc. of the system of hot conveyance or accumulation of heat.
And, carry out such circulation repeatedly by the refrigerant of evaporimeter 16 evaporations: flow out from this evaporimeter 16, enter suction line 45, suck compressor 10 from low-pressure side (suction portion) again through accumulator 17.By carrying out above circulation repeatedly, thereby cool off cooled object, simultaneously by generating hot water from the heat radiation of radiator 11 by the heat absorption that utilizes evaporimeter 16.
Above-mentioned cooling is in service, by the aperture of control device variable expansion valve 14, is set point of temperature so that be located at the temperature of the discharge refrigerant that the discharge temperature sensor T1 on the high pressure coolant piping 40 in refrigerant loop 2 detects.Particularly, when rising above setting, then the aperture of expansion valve 14 is enlarged by control device by the detected refrigerant temperature of discharge temperature sensor T1.On the contrary, the detected refrigerant temperature of discharge temperature sensor T1 is lower than setting, then by control device the aperture of expansion valve 14 is dwindled.Thus, can efficiently operation under the appropriate condition that makes the running that produces the hot water be used for the high temperature that hot water provides.
In addition, the rotating speed of the compressor 10 in when operation cooling can be certain, also can carry out frequency adjustment by frequency converter etc. according to cooling load.
Hot water when (2) cooling moves provides the action in loop 3
Hot water when then, the cooling operation being described provides the action in loop 3.Above-mentioned cooling operation beginning, start the circulating pump 31 that hot water provides loop 3 by above-mentioned control device, the hot water of low temperature or water (economizing slightly water later on) suck circulating pump 31 from the bottom of hot water storing tank 30 through low temperature pipe arrangement 47, are pressed into the low temperature pipe arrangement 47 of heat exchanger 13 sides that are connected with the outlet of this circulating pump 31.Thus, the water that extrudes from circulating pump 31 through flow control valve 35 in the inlet inflow heat exchanger 13 of water passage 12.In the heat exchanger 13, as mentioned above, thereby make the water that flows in the water passage 12 take out hot being heated, generate the hot water of high temperature from radiator 11 by carrying out heat exchange with the refrigerant that in radiator 11, flows.And, discharge the high temperature pipe arrangement 48 of hot water by hot water storage loop 5 of the high temperature of heat exchanger 13 from the outlet of water passage 12, inject in the hot water storing tank 30 from the top (upper end) of hot water storing tank 30.In this hot water storing tank 30, the hot water of the high temperature that is generated by heat exchanger 13 injects from top, takes out water from the bottom, so the density contrast that utilizes the difference of water temperature to cause makes top store the water of high temperature, the bottom stores the water of low temperature.
In addition, above-mentioned flow rate regulating valve 35 is regulated the flow of water, makes the temperature of hot water of water passage 12 outlets of heat exchanger 13 be the value of regulation.In the present embodiment, by control device, according to the temperature of the hot water of water passage 12 outlet that goes out the detected heat exchanger 13 of hot water temperature's sensor T2, control flow control valve 35.That is, by the temperature of the hot water that goes out 12 outlets of the detected water passage of hot water temperature's sensor T2 than under the high situation of the temperature of regulation, by the aperture of control device control flow control valve 35.Thus, can be increased in the internal circulating load (flow) of the water of circulation in this hot water storage loop 5.
On the other hand, go out under the temperature of hot water of the detected water passage of the hot water temperature's sensor T2 12 outlets situation lower the aperture of dwindling flow control valve 35 by control device at this than set point of temperature.Thus, can reduce the internal circulating load (flow) of the water in this hot water storage loop 5.In addition, form structure in the present embodiment by the temperature of the hot water that goes out 12 outlets of hot water temperature's sensor T2 detection water passage that is provided with in the middle part of the way of high temperature pipe arrangement 48, but being not limited to this, also can be that water passage 12 outlet at heat exchanger 13 is provided with the structure that this temperature sensor detects this temperature.In addition, the temperature of afore mentioned rules is meant: the temperature that suitable hot water provides, particularly, preferably decide according to use in the scope of 50 ℃～85 ℃ of degree.
In addition, also can not use above-mentioned flow control valve 35, for example use the frequency conversion type circulating pump to regulate the flow of water.In this case, the temperature of the hot water of water passage 12 outlets is than under the high situation of set point of temperature, and the rotating speed of being controlled the frequency conversion type circulating pump by control device improves this rotating speed, thereby can be increased in the internal circulating load of the water of circulation in the hot water storage loop 5.On the contrary, the temperature of the hot water of water passage 12 outlets is than under the low situation of set point of temperature, and the rotating speed of being controlled the frequency conversion type circulating pump by control device reduces this rotating speed, thereby can reduce the internal circulating load of the water of circulation in the hot water storage loop 5.
In addition, be stored in hot water in the hot water storing tank 30, provide valve (the above-mentioned fire hose is first-class) to supply with hot water load equipment is provided by operating not shown hot water by what above-mentioned heat exchanger 13 generated.Particularly, open hot water valve is provided, the hot water that then is stored in the high temperature in the hot water storing tank 30 takes out pipe arrangement 34A and flows into not shown mixing valve via high-temperature-hot-water from the high-temperature-hot-water conveying end 37 on the top that is formed on hot water storing tank 30.Similarly, the low-temperature water heating conveying end 38 that forms from the bottom of hot water storing tank 30 of the hot water that is stored in the low temperature in the hot water storing tank 30 take out pipe arrangement 34B via low-temperature water heating and with flow into above-mentioned mixing valve.And, by the hot water of this mixing valve mixing high temperature and the hot water (or water) of low temperature, be adjusted to the temperature of regulation after, valve is provided and supplies with each load equipment via hot water.
In addition, the temperature of supplying with the hot water of above-mentioned each load equipment provides temperature sensor to detect by the not shown hot water of being located on the pipe arrangement that connects mixing valve and hot water and provide valve.In addition, the above-mentioned feed water valve of water supply installation 32 is normally open normally, provides in the system in loop 3 so the municipal water of the amount suitable with the amount of the hot water of supplying with each load equipment is supplied with hot water from the water supply installation 32A of water supply installation 32.
As mentioned above, by freezing cycle device 1, can bring into play cooling effect by the heat absorption that utilizes evaporimeter 16, with the cooled object cooling, and the heat of effectively utilizing this cooling procedure to produce, promptly, by generating hot water, provide load equipment with the hot water supply hot water that generates from the heat radiation of radiator 14.Particularly, as described in present embodiment, adopt the excessive critical cycle of carbon dioxide refrigerant, thereby can make the temperature of the hot water of radiator 11 generations become high temperature by utilization.Therefore, boil with in the past the equipment that boils etc. and the hot water generator that improves hot water is compared, can cut down the consumption energy significantly.In addition, the heat of the high temperature side by utilizing freezing cycle device also can be cut down the heat of in the past discharging from the high-pressure side the atmosphere, rises so also can suppress the environment temperature of this freezing cycle device.
The action of the heat dissipation capacity of the radiator 11 when (3) guaranteeing to cool off operation
In such freezing cycle device, during the cooling running, the increase of cooling load or hot water provide the load reduction to make to be stored in hot water amount's surplus of the high temperature in the hot water storing tank 30, the temperature of the hot water that takes out from the bottom of hot water storing tank 30 also rises, as a result, the such bad phenomenon of hot water inflow of high temperature appears in heat exchanger 13.
For solving such problem, the index that can be grasped according to the heat dissipation capacity of radiator 11 among the present invention is carried out the action of heat dissipation capacity of the regulation of the necessary radiator 11 of cooling effect of guaranteeing to keep evaporimeter 16.Particularly, the freezing cycle device 1 of present embodiment in the temperature of the water of heat exchanger 13 circulations that are used for making water in the hot water storing tank 3 or the hydrothermal exchange in radiator 11 and the hot water storing tank 30 or radiator 11 or the temperature of discharging the refrigerant of this radiator 11 rise under the situation more than the value of regulation, cause discharger 36 is discharged the interior water of hot water storing tanks 30.
At this, the action of the water of these discharger 36 discharge hot water storing tanks 30 is described.In the freezing cycle device 1 of present embodiment, rise to when the temperature of the water of heat exchanger 13 circulations that are being used for making the hydrothermal exchange in detected radiator 11 of temperature sensor T6 and the hot water storing tank 30 more than the value of regulation, under for example 25 ℃～the situation more than 30 ℃, the water of discharging in the hot water storing tanks 30 by discharger 36.In addition, discharge the temperature of the water in the hot water storing tank 30 by discharger 36, be not limited to present embodiment and be used for making the temperature of water of heat exchanger 13 circulations of the hydrothermal exchange in radiator 11 and the hot water storing tank 30 like that, also can be the temperature by the water in the detected hot water storing tank of hot water storage sensor T4 30, also can be the temperature of the refrigerant of discharging by the temperature of refrigerants in the radiator 11 of hot water storing tank 13, from radiator 11.
In addition, the hot water dump valve 36B that is located at the hot water discharge pipe 36A of discharger 36 closes usually by above-mentioned control device, and in this state, the water in the hot water storing tank 30 is not discharged from hot water discharge pipe 36A.
And in the cooling running, the temperature of the detected water of said temperature sensor T6 rises under the situation of setting above (in the present embodiment 25 ℃～more than 30 ℃), opens the hot water dump valve 36B of hot water discharge pipe 36A by above-mentioned control device.Thus, the hot water temperature who takes out than the high-temperature-hot-water conveying ends in hot water storing tank 30 37 low and than the coolant-temperature gage that takes out from low-temperature water heating conveying end 38 high the hot water of temperature be discharged to the outside of hot water storing tank 30 from hot water discharge pipe 36A.
With from this hot water discharge pipe 36A discharge hot water simultaneously, the cold water of the amount suitable with the hot water amount who discharges is supplied with in the hot water storing tank 30 from the water supply piping 32A of water supply installation 32.In addition, the hot water of discharging the outside of hot water storing tank 30 from above-mentioned hot water discharge pipe 36A also can use other suitable purposes.
Like this, discharge hot water from hot water discharge pipe 36A to the outside of hot water storing tank 30, simultaneously, in this hot water storing tank 30 of Cold water supply that will be suitable with the hot water amount who discharges, thereby can reduce the temperature of the hot water of bottom in the hot water storing tank 30, the hot water of bottom or the cold water in this hot water storing tank 30 of water supply installation 32 supplies can be supplied with heat exchanger 13 in this hot water storing tank 30.
Thus, in heat exchanger 13, can guarantee that refrigerant keeps the needed heat dissipation capacity of cooling effect of evaporimeter 16.That is, in heat exchanger 13, be distributed in the water that in water passage 12, flows, can make the temperature of refrigerant form low temperature,, carry out the cooling of cooled object reliably so can keep the cooling capacity of evaporimeter 16 because the heat of the refrigerant that flows in radiator 11 is filled.
Particularly, in the freezing cycle device 1 of present embodiment, the hot water discharge pipe 36A of discharger 36 be configured in hot water storing tank 30 high-temperature-hot-water conveying end 37 the below and be configured in the top of low-temperature water heating conveying end 38.Particularly, the position of this hot water discharge pipe 36A preferably, the volume of the water in the bottom is stored in hot water storing tank 30 becomes the hot water discharge pipe 36A that this discharger 36 is installed on the position of 20L～50L degree.Promptly, hot water discharge pipe 36A is installed in the below of this position, then can fully obtains the water supply piping 32A from water supply installation 32 is flowed into the effect that cold water in the hot water storing tank and the warm water in the hot water storing tank 30 mix and imported cold water by the conduction of heat.On the contrary, certainly under the situation that install upward this position, the hot water that is stored in the high temperature in the hot water storing tank 30 is discharged to the outside of hot water storing tank 30 from this discharger 36, does not have heat loss.
Therefore, by below the high-temperature-hot-water conveying end 37 of hot water storing tank 30, low-temperature water heating conveying end 38 above and the position of the volume 20L～50L degree of water in the bottom is stored in hot water storing tank 30 the hot water discharge pipe 36A of this discharger 36 is installed, thereby providing the hot water of load equipment not provide to hot water hinders, can discharge hot water from this discharger 36, also can guarantee the heat dissipation capacity of the radiator 11 of heat exchanger 13.
But if the hot water amount who discharges from above-mentioned discharger 36 is very few, the amount of cold water that then flows into hot water storing tank 30 is insufficient, the result, and the amount surplus of the hot water of the high temperature in the hot water storing tank 30 can influence cooling capacity and efficient.Therefore, minimum by the effect that this discharger 36 gets is set.On the other hand, too much from the hot water amount that discharger 36 is discharged, then along with the discharge of hot water, the quantitative change that is controlled at the water that flows in the heat exchanger 13 gets difficult, as a result, the internal circulating load surplus of the water in hot water storage loop 5, the temperature of the hot water that is generated by heat exchanger 13 reduces.In addition, because from a large amount of cold water that flow into of water supply piping 32A, and hot water storing tank 30 temperature inside form fault disorderly, and the heat loss in the hot water storing tank 30 is increased.
Therefore, the hot water amount who discharges from discharger 36 is set at suitable amount in advance.Particularly, suitable relief portion (not shown) is set on this hot water dump valve 36B or the hot water discharge pipe 36A, is set at the value of regulation from the hot water storing tank 30 interior hot water amounts of 36 unit interval of discharger discharge in advance.The value of this regulation is bigger than the internal circulating load (flow of the hot water of metered flow or generation) of the hot water in the hot water storage loop 5 of being tried to achieve by the temperature of the hot water of the heating efficiency in refrigerant loop 1 and generation, and little not influence of temperature of arriving to the hot water that generates, (hot water of high temperature slips on the top of hot water storing tank 30 can not make hot water storing tank 30 interior temperature form layer, more down, the temperature of hot water is low more) degree of entanglement.Particularly, 1.2 times～2 times degree of the metered flow in preferred hot water storage loop 5, for example the amount of the hot water of Sheng Chenging is in the system of per minute 1L, the hot water discharge rate that preferred 1.2L/ branch～2L/ divides.
As described in detail above, freezing cycle device 1 according to present embodiment, by the increase of cooling load or the reduction of heated load, under the situation of hot water amount's surplus of the high temperature of hot water storing tank 30 inside, also can discharge water in the hot water storing tanks 30, and to hot water storing tank 30 in, take out cold water, supply heat exchanger 13 from water supply installation 32 from discharger 36, so can guarantee the heat dissipation capacity of the refrigerant of radiator 11, avoid the reduction of the cooling capacity of evaporimeter 16.Thus, can carry out the reliable cooling of cooled object.
(embodiment 2)
Other embodiment of freezing cycle device of the present invention then, are described.Fig. 2 is a summary construction diagram of implementing the freezing cycle device of other embodiment of the present invention.Among Fig. 2, the Reference numeral identical with Fig. 1 represented to have with it identical or the similar parts of effect or effect, so omit its explanation, is the center explanation with the present embodiment part different with the foregoing description.
The structural difference of the freezing cycle device 1 of the freezing cycle device 100 of present embodiment and the foregoing description 1 at first, is described.The freezing cycle device 1 of embodiment 1 is provided with the discharger 36 of discharging the hot water in the hot water storing tank 30 as required, and with respect to this, the freezing cycle device 100 of present embodiment is not provided with discharger 36.The freezing cycle device 100 of present embodiment is provided with water-cooling apparatus 80 on the low temperature pipe arrangement 47 of the inlet of the water passage 12 of bottom that connects hot water storing tank 30 and heat exchanger 13.This water-cooling apparatus 80 is to be used to cool off the heat exchanger that flows into, carries out with radiator 11 water of heat exchange from hot water storing tank 30 heat exchanger 13 in this heat exchanger 13.
The water-cooling apparatus 80 of present embodiment for example is the heat exchanger of so-called pipe aerofoil profile (チ ュ one Block ア Application De Off イ Application type), promotes the aluminium wing (ア Le ミ Off イ Application) to constitute by copper pipe, the heat transfer be located on this copper pipe.And the inside of this copper pipe is formed with and is used to flow through the stream that takes out and supply with the water of heat exchanger 13 from the bottom of hot water storing tank 30.In addition, near this water-cooling apparatus 80, be provided be used for to water-cooling apparatus 80 supply be used for the water that in copper pipe, flows carry out heat exchange air fan 80F and drive the fan motor 80M of this fan 80F.The running of this fan motor 80M is by the not shown control device control of the control of being responsible for this freezing cycle device 100.In addition, the form of above-mentioned water-cooled device 80 is not limited to this, and other forms of heat exchanger for example also can be suitable for: adopt aluminium extrude the flat partially pipe of porous (ア Le ミ gives as security and goes out the flat partially pipe of porous), to be located at a plurality of holes on this flat partially pipe as the heat exchanger of roll extrusion cast (ロ one Le De チ ュ one Block オ Application シ one ト type) on so-called, the microchannel type heat exchanger microtubule type heat exchanger of coolant path or the sheet.In addition, being not limited to use above-mentioned air as the hot media of cooling and the water of radiator 11 heat exchanges, also can be hot medias such as water, liquid.Under the situation of fluid such as water or liquid as hot media, for example can adopt convection type double pipe heat exchanger or copper pipe engagement type heat exchanger etc.
According to above structure, next the action of the freezing cycle device 100 of present embodiment is described.In addition, the refrigerant loop 2 during common cooling operation and the action of hot water storing tank 5 and to hot water action that load equipment provides hot water is provided, the heat absorption of the evaporimeter 16 that utilizes refrigerant loop 2 brings into play cooling effect and when cooling off cooled object, and generate the hot water of high temperature by the heat radiation of the refrigerant of radiator 11, be stored in hot water storing tank 30 and utilize its action identical, so repeat no more with the foregoing description 1.
In common cooling running, the fan motor 80M that is used to supply with water-cooling apparatus 80 air is the state that is stopped by control device, under this state, do not provide the air that carries out water and heat exchange to water-cooling apparatus 80, so carry out the heat exchange of water and air mobile in this water-cooling apparatus 80 hardly.
And, the freezing cycle device 100 of present embodiment when with the temperature of the water of radiator 11 heat exchanges (water in the hot water storing tank 30 or, be used to make water in radiator 11 and the hot water storing tank 30 to carry out the temperature of the water of circulation in the heat exchanger 13 of heat exchange) or, in the radiator 11 or, the temperature of discharging the refrigerant of this radiator 11 rises under the above situation of the value of regulation cause water-cooling apparatus 80 cooling waters.
At this in detail, the cooling action of the water that utilizes this water-cooling apparatus 80 is described in detail.The freezing cycle device 100 of present embodiment, temperature sensor T6 on the low temperature pipe arrangement 47 is detected to be used to that the temperature (temperature of the water of the inlet of heat exchanger 13) of the water that circulates in the heat exchanger 13 of the water heat exchanger radiator 11 and hot water storing tank 30 in is become more than the value of regulation if by being located at, then drive fan motor 80M, make fan 80F rotation by described control device.In addition, the temperature that drives fan motor 80M is not limited to the such temperature by the water of the inlet of the detected heat exchanger 13 of temperature sensor T6 of present embodiment, also can be the temperature by the water in the detected hot water storing tank of hot water storage sensor T4 30, also can be the temperature of refrigerants in the radiator 11 of heat exchanger 13 or the temperature of discharging the refrigerant of radiator 11 in addition.
In addition, as the afore mentioned rules value that drives fan motor 80M, be the benchmark decision for example with the temperature of in water-cooling apparatus 80, carrying out the air of heat exchange with water.That is, than under the high situation of the temperature of air, drive fan motor 80M, make fan 80 rotations, provide air water-cooling apparatus 80 by control device by the temperature of the water of the inlet of the detected heat exchanger 13 of temperature sensor T6.
Thus, the water that takes out from the bottom of hot water storing tank 30 flows in the copper pipe of water-cooling apparatus 80 via low temperature pipe arrangement 47.Therefore, by the ventilation of fan 80F air being discharged thermal change from the water of hot water storing tank 30 taking-ups by the process of this copper pipe is low temperature.Thus, can supply with the water of low temperature to heat exchanger 13.
Therefore, with the foregoing description 1 increase of cooling load and reduction that hot water provides load etc. similarly, make the amount surplus of the hot water that is stored in the high temperature in the hot water storing tank 30, the temperature of taking out the water of supplying with heat exchanger 13 from the bottom of hot water storing tank 30 becomes under the situation of high temperature, also can supply with heat exchanger 13 by the water of these water-cooling apparatus 80 coolings from the bottom taking-up of hot water storing tank 30.
Thus, in heat exchanger 13, can guarantee that refrigerant keeps the necessary heat dissipation capacity of cooling effect of evaporimeter 16.That is, in heat exchanger 13, the heat of the refrigerant that flows in the radiator 11 fully is discharged in the water that flows in the water passage 12, makes the temperature of refrigerant form low temperature,, reliably carry out the cooling of cooled object so can keep the cooling capacity of evaporimeter 16.
In the present embodiment, the air-supply to water-cooling apparatus 80 is controlled in running by fan motor 80M (drive and stop), and switch having or not of cooling off in the water-cooling apparatus 80, but be not limited to this, it also can be the bypass pipe arrangement that is set up in parallel bypass water-cooling apparatus 80, and be provided with and can select property ground and carry out and will flow into the transfer valve that this bypass pipe arrangement still flows into the switching of water-cooling apparatus 80 from the water that take out the bottom of hot water storing tank 30, operate this transfer valve and also can carry out the control same with present embodiment.
That is, in service in common cooling, the water from hot water storing tank 30 of supplying with heat exchanger 13 is switched valve control and flows into bypass pipe arrangement (for example being controlled the action of transfer valve by above-mentioned control device).And, when the temperature by the water of the detected heat exchanger of temperature sensor T6 13 inlets is more than the value of afore mentioned rules, then is switched valve control and flows into water-cooling apparatus 80 from the water of hot water storing tank 30.Thus, can be only under the situation that the temperature of the water of supplying with heat exchanger 13 rises, make in the water-cooling apparatus 80 and flow into water, the water that cooling heat exchanger 13 is supplied with.
In addition, in the present embodiment, the water from hot water storing tank 30 of supplying with heat exchanger 13 is cooled off by air in water-cooling apparatus 80, but is not limited to this.Also can use other hot media, for example also can be that hot media makes fluids such as water or liquid, under the situation of the circulation of carrying out this hot media by circulating pump, whether control is cooled off by the circulation of this circulating pump (drive and stop), also can on the pipe arrangement of supplying with hot media, intercepter valve (IV) be set, control by the switching of this intercepter valve (IV) and whether cool off.
As described in detail above, in the freezing cycle device 100 of present embodiment, also the freezing cycle device 1 with embodiment 1 is the same, utilize the heat absorption performance cooling effect of evaporimeter 16 and cool off cooled object, and effective heat that generates by this cooling procedure of utilizing, promptly, provide load equipment with the hot water supply hot water that generates by generating hot water from the heat radiation of radiator 14.Therefore, be not utilized in the past and discharge the heat energy that generates in the cooling procedure of atmosphere and enough be effectively used, reduced energy resource consumption.
In addition, freezing cycle device 100 according to present embodiment, the increase of cooling load or the reduction of heating load make under the situation of hot water amount's surplus of high temperature of hot water storing tank 30 inside, also can supply with the water of heat exchanger 13 by cooling device 80 coolings from hot water storing tank 30, so can guarantee the heat dissipation capacity of the refrigerant of radiator 11, avoid the cooling capacity of evaporimeter 16 to reduce.Thus, can carry out the cooling of cooled object reliably.
(embodiment 3)
Another embodiment of freezing cycle device of the present invention then is described.Fig. 3 is to use the summary construction diagram of the freezing cycle device of embodiments of the invention 3.In addition, among Fig. 3, representing to have with it identical or the similar parts of effect or effect with Fig. 1 and the Reference numeral identical with Fig. 2, illustrate so omit it, is the center explanation with the present embodiment part different with the foregoing description.
At first, difference on the result of freezing cycle device 1 of the freezing cycle device 200 of present embodiment and embodiment 1 is described.The freezing cycle device 1 of embodiment 1 is provided with the discharger 36 of discharging the hot water in the hot water storing tank 30 as required, and the freezing cycle device 200 of present embodiment is not provided with discharger 36.The freezing cycle device 200 of present embodiment is provided with second radiator 90 that is used to cool off the refrigerant of discharging radiator 11 on the coolant piping 41 of radiator 11 that connects refrigerant loop 2 and expansion valve 14, be provided with the temperature sensor T7 of the temperature (by the refrigerant temperature behind the radiator 11) that detects the refrigerant of discharging radiator 11 on the coolant piping 41 of 90 in radiator 11 and second radiator.
According to above structure, next the action of the freezing cycle device 200 of present embodiment is described.In addition, the refrigerant loop 2 during common cooling operation and the action of hot water storing tank 5 and to hot water action that load equipment provides hot water is provided, the heat absorption of the evaporimeter 16 that utilizes refrigerant loop 2 brings into play cooling effect and when cooling off cooled object, generate the hot water of high temperature by the heat radiation of the refrigerant of radiator 11, be stored in hot water storing tank 30 and utilize its action identical, so repeat no more with the foregoing description 1.
In common cooling running, the fan motor 90M that is used to supply with second radiator, 90 air is the state that is stopped by control device, under this state, do not provide the air that carries out water and heat exchange to second radiator 90, so carry out the heat exchange of water and air mobile in this water-cooling apparatus 90 hardly.
And, the freezing cycle device 200 of present embodiment when with the temperature of the water of radiator 11 heat exchanges (water in the hot water storing tank 30 or, be used to make water in radiator 11 and the hot water storing tank 30 to carry out the temperature of the water of circulation in the heat exchanger 13 of heat exchange) or, in the radiator 11 or, the temperature of discharging the refrigerant of this radiator 11 rises under the above situation of the value of regulation, the refrigerant of radiators 11 is discharged in 90 coolings of cause second radiator.
At this in detail, the cooling action of the refrigerant that utilizes this second radiator 90 is described in detail.The freezing cycle device 200 of present embodiment if become the value of regulation when above by the temperature of the refrigerant of being located at the detected discharge radiator 11 of said temperature sensor T7 on the low temperature pipe arrangement 41, then drives fan motor 90M by described control device, makes fan 90 rotations.In addition, the temperature that drives fan motor 90 is not limited to this temperature by the refrigerant of the detected discharge radiator 11 of temperature sensor T7 as described in present embodiment, also can be by the temperature of the water in the detected hot water storing tank of hot water storage sensor T4 30 or carry out the temperature (temperature of the water of the inlet of heat exchanger 13) of the water that circulates in the heat exchanger 13 of heat exchange by the detected water during making radiator 11 and hot water storing tank 30 of temperature sensor T6, in addition, also can be the temperature of the refrigerant in the radiator 11 of heat exchanger 13.
In addition, as the afore mentioned rules value that drives fan motor 90M, be the benchmark decision for example with the temperature of in second radiator 90, carrying out the air of heat exchange with water.That is, the temperature that detects the refrigerant of discharging radiator 11 by temperature sensor T7 is higher than under the situation of temperature of air, drives fan motor 90M by control device, makes fan 90F rotation, provides air to second radiator 90.
Thus, the water that flows in the radiator by heat exchanger 13 11 and the water passage 12 carries out the refrigerant that heat exchange reduces temperature and flows in the copper pipe of second radiator 90 via coolant piping 4.Therefore, by in the process of this copper pipe, air is discharged heat, further form low temperature by the ventilation of fan 90F from the refrigerant of radiator 11.Thus, the enthalpy of the refrigerant of inflow evaporator 16 ratio can diminish.
Therefore, identical with the foregoing description 1, even because the increase of cooling load or the reduction that hot water provides load etc., and make hot water amount's surplus of the high temperature that store in the hot water storing tank 30, and the temperature of taking out the water of supplying with heat exchanger 13 from the bottom of hot water storing tank 30 becomes high temperature, make under the situation that the heat dissipation capacity of radiator 11 reduces, also can cool off by the refrigerant behind the radiator 11, and form low temperature by this second radiator 90.
Like this, can guarantee that by second radiator 90 refrigerant keeps the necessary heat dissipation capacity of cooling effect of evaporimeter 16.Promptly, in radiator 11,, the temperature of water passage 12 can not fully discharge the heat of refrigerant though uprising, form low temperature, but discharge the heat of refrigerant to air by second radiator 90, can make the temperature of this refrigerant form low temperature,, carry out the cooling of cooled object reliably so can keep the cooling capacity of evaporimeter 16.
In the present embodiment, the air-supply to second radiator 90 is controlled in running by fan motor 90M (drive and stop), switch having or not of the cooling utilize second radiator 90, but be not limited to this, it also can be the bypass pipe arrangement that is set up in parallel bypass second radiator 90, and be provided with and can select property ground and carry out the refrigerant from radiator 11 is flowed into the transfer valve that this bypass pipe arrangement still flows into the switching of second radiator 90, operate this transfer valve and also can carry out the control same with present embodiment.
That is, in service in common cooling, be switched valve control from the refrigerant of radiator 11 and flow into the bypass pipe arrangement action of above-mentioned control device control transfer valve (for example by).And, when the temperature by the refrigerant of the detected discharge radiator 11 of temperature sensor T7 is more than the value of afore mentioned rules, then is switched valve control and flows into second radiator 90 from the refrigerant of radiator 11.Thus, under the situation that the temperature by the refrigerant behind the radiator 11 rises, that is, only flow into refrigerants to second radiator 90 under radiator 11 can not be guaranteed the situation of the heat dissipation capacity stipulated, the refrigerant of evaporimeter 16 is supplied with in cooling.
In addition, in the present embodiment, the refrigerant of discharging from radiator 11 is cooled off by air second radiator 90, but the hot media that cools off refrigerant also can be air other means in addition, for example makes hot medias such as water or liquid.Under the situation of fluids such as water or liquid, for example use the heat exchanger of convection type two-fold heat exchanger or copper pipe engagement type etc. as second radiator as hot media.In addition, use fluid and undertaken by circulating pump under the situation of circulation of this hot media as hot media, whether the running (drive and stop) that can be this circulating pump is controlled and is cooled off, also can on the pipe arrangement of supplying with hot media, intercepter valve (IV) be set, control by the switching of this intercepter valve (IV) and whether cool off.
In addition, in the freezing cycle device 200 of present embodiment, on the basis of the cooling of the refrigerant of second radiator 90, be arranged at the temperature of water of the inlet of the detected heat exchanger 13 of temperature sensor T6 on the low temperature pipe arrangement 47, the temperature of perhaps being located at the temperature of the water in the detected hot water storing tank 30 of hot water storage sensor T4 on the hot water storing tank 30 or being located at the hot water that goes out the high temperature in the detected hot water storing tank 30 of hot water temperature's sensor T2 on the high temperature pipe arrangement 48 is under the above situation of the value of regulation, stops circulating pump 31 and closes the action of flow control valve 35.
The temperature of afore mentioned rules is meant, considers the value of the state of the hot water of high temperature setting, fill up regulation in hot water storing tank 30 by the design temperature (being boiling temperature) of hot water heat exchanger 13 generations, that be stored in the high temperature in the hot water storing tank 30.For example, fully near under the situation as the above-mentioned design temperature of desired value, can judge the hot water that in hot water storing tank 30, fills up high temperature by the temperature of the water of the inlet of being located at the detected heat exchanger 13 of temperature sensor T6 on the low temperature pipe arrangement 47.In addition, the temperature that reaches above-mentioned roughly design temperature and each height by the temperature of being located at the hot water in the detected hot water storing tank 30 of a plurality of hot water storage sensor T4 on the hot water storing tank 30 with differing heights is under the situation of roughly the same temperature, also can judge the hot water that fills up high temperature in the hot water storing tank 30.And then, no matter whether flow control valve 35 standard-sized sheet, the detected temperature of being located on the high temperature pipe arrangement 48 that enters the hot water of the high temperature in the hot water storing tank 30 of hot water temperature's sensor T2 that goes out rises to go out under hot water temperature's the situation above target, also can judge the hot water that fills up high temperature in the hot water storing tank 30.
Like this, if by temperature sensor T6, hot water storage sensor T4 or the temperature that goes out the detected hot water of hot water temperature's sensor T2 is more than the value of regulation, then by stopping circulating pump 31, closing flow control valve 35 and make the hot water that fills up high temperature in the hot water storing tank 30, and there is no need to produce under the situation of hot water excessive more than this, can avoid carrying out wasteful water (hot water) circulation.In addition, in this case, owing to do not carry out the water circulation in hot water storage loop 5, so do not carry out the heat exchange of refrigerant and water in the heat exchanger 13 fully, therefore, the heat radiation of refrigerant can all be carried out in second radiator 90.
As described in detail above, in the freezing cycle device 200 of present embodiment, also same with the freezing cycle device 1 of the foregoing description 1, cool off cooled object by the heat absorption performance cooling effect of evaporimeter 16, and effectively utilize the heat that generates in this cooling procedure, promptly be used to generate hot water, provide load equipment the hot water supply hot water that generates from the heat radiation of radiator 14.Therefore, be not utilized in the past and be discharged into the heat that generates in the cooling procedure in the atmosphere and be effectively used, and can reduce energy consumption.
In addition, freezing cycle device 200 according to present embodiment, even the reduction of the increase of cooling load or heating load makes under the situation of hot water amount's surplus of high temperature of hot water storing tank 30 inside, also can cool off by the refrigerant behind the radiator 11 by second radiator 90, so can guarantee the heat dissipation capacity of refrigerant, avoid the reduction of the cooling capacity of evaporimeter 16.Thus, can reliably cool off cooled object.Particularly, in the freezing cycle device 200 of present embodiment, because cooling is by the refrigerant behind the radiator 11, supply with the freezing cycle device 100 of the water of heat exchanger 13 compares with cooling among the embodiment 2, can effectively bring into play the effect of the reduction of cooling capacity, and the hot water in the hot water storing tank 30 is remained on high temperature, so also can realize the raising of hot water providing capability.
(embodiment 4)
Another embodiment of freezing cycle device of the present invention then, is described.Fig. 4 is to use the summary construction diagram of the freezing cycle device of embodiments of the invention 4.In addition, among Fig. 4, the Reference numeral identical with Fig. 1～Fig. 3 represented to have with it identical or the similar parts of effect or effect, so omit its explanation, is the center explanation with the present embodiment part different with the foregoing description.
At first, difference on the result of freezing cycle device 1 of the freezing cycle device 300 of present embodiment and embodiment 1 is described.The freezing cycle device 1 of embodiment 1 is provided with the discharger 36 of discharging the hot water in the hot water storing tank 30 as required, and the freezing cycle device 300 of present embodiment is not provided with discharger 36.The freezing cycle device 300 of present embodiment has second radiator 95 that is connected side by side with the radiator 11 in refrigerant loop 2, can select the refrigerant inflow radiator 11 that switches by compressor 10 compressions on property ground and still flow into second radiator 95.Particularly, the middle part, way of the high pressure coolant piping 40 that is connected with the inlet of radiator 11 is connected by bypass pipe arrangement 98 with the middle part, way of the coolant piping 41 that the outlet with radiator 11 is connected, second radiator 95 is set on this bypass pipe arrangement 98, and on the bypass pipe arrangement 98 of the entrance side of second radiator 95 and on the high pressure coolant piping 40 in the downstream of the tie point of bypass pipe arrangement 98 transfer valve 98B, 40B are being set respectively, make from the refrigerant of compressor 10 by the switching of switching each transfer valve 98B, 40B and select the property ground inflow radiator 11 or second radiator 95.In addition, on the coolant piping 41 of the upstream side of the bypass pipe arrangement 98 of the outlet side of second radiator 95 and the tie point of bypass pipe arrangement 98 check-valves 99,41B are set respectively, prevent the adverse current of refrigerant.In addition, transfer valve is not limited on the bypass pipe arrangement 98 of entrance side that present embodiment is arranged on second radiator 95 like that and on the high pressure coolant piping 40 in the downstream of the tie point of bypass pipe arrangement 98, also can on the tie point of bypass pipe arrangement 98, three-way valve be set, make from the refrigerant of compressor 10 by this three-way valve and select the property ground inflow radiator 11 or second radiator 95.
Above-mentioned second radiator 95 for example is the heat exchanger of so-called pipe aerofoil profile, promotes the aluminium wing to constitute by copper pipe and the heat transfer of being located on the copper pipe.And the inside of this copper pipe forms the path that flows through from the refrigerant of compressor 10.In addition, this second radiator 95 near be provided for to second radiator 95 be provided for copper pipe in the refrigerant that flows carry out heat exchange air fan 95F and drive the fan motor 95M of this fan 95F.The running of this fan motor 95M is by the not shown control device control of the control of being responsible for this freezing cycle device 300.In addition, the shape of second radiator 95 is not limited to this, also can be other forms of heat exchanger, for example, also can be suitable for: the heat exchanger of roll extrusion cast on above-mentioned microchannel type heat exchanger microtubule type heat exchanger or the sheet (ロ one Le De チ ュ one Block オ Application シ one ト).
According to above structure, next the action of the freezing cycle device 300 of present embodiment is described.In addition, the refrigerant loop 2 during common cooling operation and the action of hot water storing tank 5 and to hot water action that load equipment provides hot water is provided, the heat absorption of the evaporimeter 16 that utilizes refrigerant loop 2 brings into play cooling effect and when cooling off cooled object, generate the hot water of high temperature by the heat radiation of the refrigerant of radiator 11, be stored in hot water storing tank 30 and utilize its action identical, so repeat no more with the foregoing description 1.
In common cooling running, be that transfer valve 40B opens, transfer valve 98B full cut-off, the state that refrigerant is interdicted to the circulation of second radiator 95, the HTHP cold media gas that is compressed by compressor 10 can not flow into second radiator 95, and whole inflow radiator 11.In addition, fan motor 95 is the states that stop by control device.Therefore, under this state, do not carry out the heat exchange of the air and the refrigerant of second radiator 95.
And, the freezing cycle device 300 of present embodiment when with the temperature of the water of radiator 11 heat exchanges (water in the hot water storing tank 30 or, be used to make water in radiator 11 and the hot water storing tank 30 to carry out the temperature of the water of circulation in the heat exchanger 13 of heat exchange) or, in the radiator 11 or, the temperature of discharging the refrigerant of this radiator 11 rises under the above situation of the value of regulation, refrigerant flows into second radiator 95.
At this in detail, the cooling action of the refrigerant that utilizes this second radiator 95 is described in detail.The freezing cycle device 300 of present embodiment, if by being located at value that the detected temperature (temperature of the water of the inlet of heat exchanger 13) that is used to make the water of circulation in the heat exchanger 13 that water in radiator 11 and the hot water storing tank 30 carry out heat exchange of temperature sensor T6 on the low temperature pipe arrangement 47 becomes regulation when above, full cut-off transfer valve 40B then, the blocking refrigerant is to radiator 11 circulations, and open transfer valve 98B, make refrigerant flow into second radiator 95 from compressor 10.In addition, drive fan motor 95M, make fan 95F rotation by above-mentioned control device.In addition, open transfer valve 98B, the temperature that drives fan motor 95M is not limited to present embodiment like this by the temperature of the water of the inlet of the detected heat exchanger 13 of temperature sensor T6, it also can be the temperature of the water in the detected hot water storing tank 30 of hot water storage sensor T4, in addition, also can be the temperature of the refrigerant in the radiator 11 of heat exchanger 13 or the temperature of discharging the refrigerant of radiator 11.
In addition, open transfer valve 98B, the value that drives the afore mentioned rules of fan motor 95M is: for example consider the amount of the hot water in the hot water storing tank 30 and evaporimeter 16 cooled object temperature and determine, can judge value near the state that fills up for the hot water of high temperature in the hot water storing tank 30, and can bring into play the value of sufficient cooling capacity, in addition, also consider the extraneous gas temperature and determine.For example, the temperature of supplying with the water of hot water storing tanks 30 from water supply installation 32 is+about 17 ℃ situation under, the regulation value be+25 ℃, the temperature of water of being located at the inlet of the detected heat exchanger 13 of temperature sensor T6 on the low temperature pipe arrangement 47 is+situation more than 25 ℃ under, full cut-off transfer valve 40B opens transfer valve 98B, and starts fan motor 95B, make fan 95F rotation, carry out the heat radiation of second radiator 95.
Like this, become by the temperature of the water of the inlet of the detected heat exchanger 13 of temperature sensor T6 under the situation more than the value of regulation, transfer valve 40B full cut-off is opened transfer valve 98B, and starts fan motor 95M, makes fan 95F rotation, the heat radiation of second radiator 95.
Thus, the refrigerant from the HTHP of compressor 10 flows in the copper pipe of second radiator 95 via bypass pipe arrangement 98.Therefore, the refrigerant from compressor 10 to air discharge heat, is forming low temperature by the ventilation that utilizes fan 95F in the process of this copper pipe.Thus, the temperature of the refrigerant of inflow evaporator 16 is able to effective cooling, can form the low temperature of regulation.
Therefore, with the foregoing description similarly, the reduction that provides load owing to the increase or the hot water of cooling load etc. makes the amount surplus of the hot water that is stored in the high temperature in the hot water storing tank 30, the temperature of taking out the water of supplying with heat exchanger 13 from the bottom of hot water storing tank 30 becomes high temperature, under the situation that the heat dissipation capacity of radiator 11 reduces, also can cool off refrigerant, become low temperature by this second radiator 95 from compressor 10.
Like this, can guarantee that refrigerant keeps the necessary heat dissipation capacity of cooling effect of evaporimeter 16 by second radiator 95.Thus, can keep the cooling capacity of evaporimeter 16, carry out the cooling of cooled object reliably.
In addition, in this case, with the foregoing description 3 similarly, stop hot water storage loop 5 and get circulating pump 31, close flow control valve 35, fill up thereby get hot water by high temperature in the hot water storing tank 30, and there is no need to carry out to avoiding waste property the circulation of water (hot water) under the situation of this above hot water of regeneration.
In addition, in the present embodiment, in second radiator 95, cool off by air, but with hot media that the foregoing description 3 similarly cools off refrigerant also can be other means beyond the air, hot media such as water or liquid for example.
As detailed above, in the freezing cycle device 300 of present embodiment, also the freezing cycle device with each embodiment is the same, cool off cooled object by the heat absorption performance cooling effect of evaporimeter 16, and effectively utilize the heat that generates in this cooling procedure, promptly generate hot water, provide load equipment the hot water supply hot water that generates by heat radiation from radiator 14.Therefore, be not utilized in the past and discharge the heat energy that the cooling procedure of atmosphere generates and enough be effectively used, reduced energy consumption.
In addition, freezing cycle device 300 according to present embodiment, even the reduction of the increase of cooling load or heating load makes under the situation of hot water amount's surplus of high temperature of hot water storing tank 30 inside, also can be by flowing into second radiator 95 by the refrigerant of the HTHP of compressor 10 compression, by these second radiator, 95 heat radiations, thereby guarantee the heat dissipation capacity of refrigerant, and avoid the cooling capacity of evaporimeter 16 to reduce.Thus, can carry out the cooling of cooled object reliably.
(embodiment 5)
Fig. 5 is this summary construction diagram that is suitable for the freezing cycle device of embodiments of the invention.The milk that the freezing cycle device of present embodiment will newly extract by cooled containers (cooled object of present embodiment) cooling and cold insulation, and generate hot water by the heat that the cooling of this milk obtains, this hot water is used for cleaning automatically of cooled containers.Freezing cycle device 500 has: refrigerant loop 502, and it comprises compressor 510, radiator 511, as the expansion valve 514 of decompressor and contain evaporimeter 516; The second refrigerant loop 508, it comprises second compressor 580, second radiator 581, as the expansion valve 584 of decompressor and contain evaporimeter 586; The hot water that comprises hot water storing tank 530 provides loop 503 and automatic cleaning device described later 509.
Above-mentioned refrigerant loop 502 with compressor 510, radiator 511, expansion valve 514 and evaporimeter 516 in turn pipe arrangement connect into ring-type, form the loop circuit.Particularly, the high pressure coolant piping 540 of the discharge side of compressor 510 connection is connected with the inlet of radiator 511.This radiator 511 is the coolant paths that constitute the part of heat exchanger 513, is configured to provide with hot water water passage 512 heat exchanges in loop 503.This heat exchanger 513 is the heat exchangers that make radiator 511 and hot water provide water in the hot water storing tank 530 in loop 503 to carry out the water-refrigerant heat exchange type of heat exchange, and the water passage 512 that provides loop 503 by the coolant path and the hot water of radiator 511 constitutes.The inlet of the coolant path of formation radiator 511 and the outlet of water passage 512 on one end of this heat exchanger 513, the outlet of the coolant path of formation radiator 511 and the inlet of water passage 512 on the other end.Therefore, in this heat exchanger 513, the refrigerant of the HTHP that radiator 511, flows of discharging from compressor 510 and the water that in water passage 512, flows be relative to the flow direction.
On the other hand, the coolant piping 541 of the outlet of radiator 511 connection is connected with the inlet of expansion valve 514.Expansion valve 514 is to be used for the decompressor that will be reduced pressure by the refrigerant of radiator 511 heat radiation, and the coolant piping 542 that is connected with the outlet of this expansion valve 514 is connected with the inlet of evaporimeter 516.And, an end of connection suction line 545 in the outlet of evaporimeter 516, the other end of suction line 545 connects the low-pressure side (suction portion) of compressor 510.In addition, get involved on this suction line 545 of the low-pressure side that links evaporimeter 516 and compressor 510 that to be provided with compressor 10 sides be the accumulator 517 that is not subjected to sucking when liquid coolant the influence of unfavorable condition that compressor 510 damages etc. along the check-valves 518 of direction and protection compressor 510.Check-valves 518 when cold insulation described later running, can prevent refrigerant from the high-pressure side in refrigerant loop 502 to evaporimeter 516 adverse currents.
In addition, the described high pressure coolant piping 540 in refrigerant loop 502 is provided with the discharge temperature sensor T1 of the temperature of the refrigerant that is used to detect the HTHP of discharging from compressor 510.
And, in above-mentioned refrigerant loop 502, enclose carbon dioxide as natural refrigerant as refrigerant.And the on high-tension side pressure in this refrigerant loop 502 rises and surpasses critical pressure, so this refrigerant loop 502 becomes excessive critical cycle.In addition, the lubricating oil as compressor 510 for example uses mineral oil, alkylbenzene oil, ether oil, ester oil, PAG (PAG), POE (polyalcohol ether) etc.
On the other hand, above-mentioned evaporimeter 516 is devices that cooling is stored in the cooled object (being milk in the present embodiment) in inboard jar 570 of cooled containers 507, and itself and this cooled containers 507 is integrally formed.In this cooled containers 507, forming inside in the inboard of the outer tinning 572 that constitutes exterior contour has inboard jar 570 of space of storage cooled object (milk), inboard jar 570 and outside for example fill the heat-barrier material 574 that constitutes by foaminess materials such as polyurethane between the tinning 572.In addition, the outside plate 576 that the high sheet material of thermal conductivity constitutes is set on inboard jar 570 the outside (bottom surface of Fig. 6 and Fig. 7), the periphery complete cycle of this outside plate 576 is fixed on the bottom surface of inboard jar 570, between inboard jar 570 bottom surface and outside plate 576, form the coolant path space 577 of sealing, as the refrigerant flow of evaporimeter 516.
In addition, form on the part beyond the periphery of outside plate 576 with predetermined distance and be fixed on inboard fixed part 578 on inboard jar 570 the bottom surface in many places.Particularly, the periphery complete cycle of outside plate 576 is fixed on by the ca(u)lk welding on the bottom surface of inboard jar 570, and the part beyond this periphery is fixed into chessboard with fixed intervals by a welding and arranges shape (Acer Disk order assortment shape) or staggered (Qian Birds shape) (fixing position is inboard fixed part 578 by a welding).
At this, the refrigerant flow of above-mentioned evaporimeter 516 (coolant path space 577) is shaped by pressurization.Particularly, after the periphery complete cycle of outside plate 576 is fixed on inboard jar 570 bottom as mentioned above, by exerting pressure, form coolant path space 577 thereby expand at inboard jar 570 and 576 of outside plates between inboard jar 570 and the outside plate 576.Therefore, it is roughly arc that the part beyond the above-mentioned inboard fixed part 578 of outside plate 576 expand into section laterally, and this expansion is to arrange shape or staggered a plurality of continuous shape with chessboard.
In this case, inboard jar 570 above-mentioned outside plate 576 fixing bottom surfaces preferably are made of the high material of thermal conductivity, the refrigerant that flows with the refrigerant flow (coolant path space 577) that carries out easily at evaporimeter 516 and be stored in heat exchange between the cooled object (milk) this inboard jar 570 in, the material of other inboard jars 570, outside plate 576 and outer tinning 572 consider that preferably corrosivity or durability etc. select.In addition, above-mentioned heat-barrier material 574 is fixing outside plate 576 inboard jar 570 bottom, and then after the outer tinning 572 of its outside assembling, injects in the space of formation between the periphery that is formed on inboard jar 570 and the outer tinning 572.
In addition, it is different shapes such as cylindrical, horizontal elliptical cylinder-shape, rectangle that the shape of above-mentioned cooled containers 507 is considered, but adopts horizontal elliptical cylinder-shape in the present embodiment.In addition, in the present embodiment, outside plate 576 is assigned in inboard jar of bottom surface and forms the refrigerant flow (coolant path space 577) of evaporimeter 516, so that cooled object (milk) is able to effective cooling, can be formed on inboard jar 570 side as required.In addition, Fig. 6 do not represent for the simplification of figure, but is used for as the input port 507A of the milk of cooled object on the cooled containers 507 and is used to take out the conveying end (not shown) of milk.
And the described coolant path space 577 (refrigerant flow of evaporimeter 516) that forms between inboard jar 570 bottom surface and the outside plate 576 is gone up a plurality of refrigerant inlet tube 516A and the refrigerant exit pipe 516B that is communicated with this coolant path space 577 is installed.Refrigerant inlet tube 516A makes refrigerant inflow evaporator 516 (coolant path space 577), and an end is connected with this coolant path space 577.The other end of this refrigerant inlet tube 516A is connected with this coolant piping 542, makes refrigerant from coolant piping 542 to coolant path space 577 differences.In addition, refrigerant exit pipe 516B makes refrigerant flow out refrigerant from evaporimeter 516 (coolant path space 577), and an end is connected with above-mentioned coolant path space 577.The other end of refrigerant exit pipe 516B connects suction line 545, to converge the refrigerant of refrigerant exit pipe 516.
In addition, the coolant path space 577 of the refrigerant flow of evaporimeter 516 can be cut apart by ca(u)lk welding (シ one system welds) and is freely formed.For example, also can cut apart two zones of formation, refrigerant flow is formed two bypasses in central authorities.In addition,, also thinner ground cut zone be can pass through, thereby 3 bypasses, 4 bypasses or more bypass formed as additive method.In addition, also can form the refrigerant flow of the shape that crawls or the refrigerant flow of scroll by the ca(u)lk welding.
In addition, in the present embodiment, illustrated by spot welding and ca(u)lk welding and carried out the fixing of inboard jar 570 and outside plate 576, but fixing method is not limited to this, for example also can fix by additive methods such as laser weldings.
In addition, as shown in Figure 5, connection removably drops into pipe arrangement 550 via input port valve 550B on the 507A of the milk input port of above-mentioned cooled containers 507, and then connects the taking-up pipe arrangement 552 that is used to take out milk at above-mentioned milk conveying end removably via taking out valve 552B.And milk drops into pipe arrangement 550 and only is installed on the 507A of milk input port under the situation that drops into milk in the inboard jar 570 of cooled containers 507, pulls down from milk input port 507A under other situations, and milk input port 507A is by close plug.Equally, milk takes out pipe arrangement 552 and only is installed in the milk conveying end under the situation that the milk in the inboard jar 570 of cooled containers 507 is taken out, and situation is in addition pulled down from the milk conveying end, and this milk conveying end is by close plug.
In addition, the milk temperature sensor T5 that is used to detect as the temperature of the milk of cooled object is installed on inboard jar 570 the outer peripheral face of cooled containers 507.In addition, the heat transfer when cooled containers 507 is promoted cooling, and reduce the temperature inequality, and carry out temperature survey accurately, and the mixer 575 of whipping milk is set.Mixer 575 constitutes by paddle and stirring motor with the axle of their combinations.
On the other hand, the above-mentioned second refrigerant loop 508 with compressor 580, radiator 581, expansion valve 584 and evaporimeter 586 in turn pipe arrangement connect into ring-type, form the loop circuit.Particularly, the high pressure coolant piping 590 of the discharge side of connection compressor 580 is connected with the inlet of radiator 581.This radiator 581 is the coolant paths that constitute the part of heat exchanger 583, and being configured to provide second water passage 582 in loop 503 to carry out heat exchange with hot water.This heat exchanger 583 is to make radiator 581 and hot water provide water in 503 the hot water storing tank 530 to carry out the heat exchanger of the water-refrigerant heat exchange type of heat exchange, and the water passage 582 that provides loop 503 by coolant path and hot water as radiator 581 constitutes.The inlet of the coolant path of the one end formation radiator 581 of this heat exchanger 583 and the outlet of water passage 582, the outlet of the coolant path of other end formation radiator 581 and the inlet of water passage 582.Therefore, on this heat exchanger 583, the water that flows in the refrigerant of the HTHP that radiator 581, flows of discharging from compressor 580 and the water passage 582 be relative current to.
On the other hand, the coolant piping 591 that is connected with the outlet of radiator 581 is connected with the inlet of expansion valve 584.Expansion valve 584 is to be used for decompressor that the refrigerant by radiator 581 heat radiation is reduced pressure, and the coolant piping 592 that the outlet of this expansion valve 584 connects is connected with the inlet of evaporimeter 586.This evaporimeter 586 for example is the heat exchanger of pipe aerofoil profile, promotes the aluminium wing to constitute by copper pipe and the heat transfer of being located on this copper pipe.And, the stream that the inside of this copper pipe is formed for making the refrigerant from expansion valve 584 to flow through.In addition, near evaporimeter 586, be provided for with copper pipe in the water that the flows atmosphere as thermal source (air) that carries out heat exchange supply with the fan 586F of evaporimeter 586 and drive the fan motor 586M of this fan 586F.In addition, the thermal source of above-mentioned evaporimeter 586 is not limited to above-mentioned atmosphere, also can make water, waste water, solar energy, underground water or other thermals source.
And the outlet of evaporimeter 586 connects an end of suction line 595, and the other end of suction line 595 is connected with the low-pressure side (suction portion) of compressor 580.In addition, link to get involved on this suction line 595 of low-pressure side of evaporimeter 586 and compressor 580 and be provided for protecting compressor 580 not to be subjected to liquid refrigerants to suck compressor 580 and cause the accumulator 587 of the influence of situation such as damage.
In addition, be provided for detecting the discharge temperature sensor T7 of temperature of the refrigerant of the HTHP of discharging from compressor 580 on the above-mentioned high pressure coolant piping 590 in the second refrigerant loop 508.
In addition, on the second refrigerant loop 508, also enclose carbon dioxide as natural refrigerant as refrigerant.That is, surpass critical pressure for the on high-tension side pressure that makes this second refrigerant loop 508 rises, and make this refrigerant loop 508 form excessive critical cycle.In addition, same as the compressor 510 in the lubricating oil of compressor 580 and above-mentioned refrigerant loop 502, for example mineral oil, alkylbenzene oil, ether oil, ester oil, PAG (PAG), POE (polyalcohol ether) etc.
On the other hand, thereby above-mentioned hot water provides loop 503 by from refrigerant that flows the radiator 511 in above-mentioned refrigerant loop 502 or the refrigerant reception heat that flows in the radiator 581 in the second refrigerant loop 508 water being heated, produce the hot water of high temperature, this loop 503 is by with the hot water storage loop 505 of this hot water storage hot water storing tank 530 in, provide the hot water generator 534 of load equipment and discharger described later 536 to constitute to the water supply installation 532 of water supply in the hot water storing tank 530, the hot water supply hot water that will be stored in the hot water storing tank 530.
Above-mentioned hot water storing tank 530 be used for at heat exchanger 513 by the hot water storage of radiator 511 or the high temperature that in heat exchanger 583, generates jar in inside by the heat radiation of radiator 581, outer peripheral face integral body is covered by heat-barrier material, and the hot water of internal reservoir is difficult to cool off.
And, connect the low temperature pipe arrangement 547 that is used for taking out the low hot water (water) of the temperature that is stored in this hot water storing tank 530 below hot water storing tank 530 in the bottom of above-mentioned hot water storing tank 530, this low temperature pipe arrangement 547 is connected with the inlet of the water passage 512 of the other end that is formed on heat exchanger 513 via circulating pump 531, flow control valve 535.Above-mentioned circulating pump 531 is to be used to parts that water is circulated in hot water storage loop 505.The circulating pump 531 of present embodiment makes the water circulation (making water among Fig. 5 according to clockwise circulation) in the hot water storage loop 505, so that water heat exchanger 513 sides that take out the bottom of hot water storing tank 530 or heat exchanger 583 sides discharge, the current in the water passage 512,582 of each heat exchanger 513,583 as described above with respect to the refrigerant streams in the radiator 511,581 be relative current to.In addition, flow control valve 535 is the valve gears that are used to regulate by the flow of the warm water in the hot water storage loop 505 of this circulating pump 531 circulations.
In addition, the upstream side of the above-mentioned circulating pump 531 of low temperature pipe arrangement 547 configuration triple valve 547A is connected with an end of bypass pipe arrangement 549 from low temperature pipe arrangement 547 differences via this triple valve 547A.The other end of this bypass pipe arrangement 549 is connected with the middle part, way of high temperature pipe arrangement 548.And, by switch three-way valve 547A, thereby make the water of hot water storing tank 530 belows flow into circulating pump 531 with can selecting a property, or make by the hot water behind the heat exchanger 513 (water) or by the switching of the hot water (water) behind the heat exchanger 583 inflow circulating pump 531.
In addition, the downstream of the flow control valve 535 of low temperature pipe arrangement 547 is provided with triple valve 547B, is connected with low temperature pipe arrangement 597 from low temperature pipe arrangement 547 differences via this triple valve 547B.This low temperature pipe arrangement 597 is connected with the inlet of the water passage 582 of the other end that is formed on heat exchanger 583.This triple valve 547B can make by the water behind the flow control valve 535 and select property ground inflow heat exchanger 513 or inflow heat exchanger 583.
And, connect an end of high temperature pipe arrangement 598 in the outlet of the water passage 582 of an end that is formed on heat exchanger 583, be connected in the middle part of the way of the other end of this high temperature pipe arrangement 598 and high temperature pipe arrangement 548.
On the other hand, the outlet of the water passage 512 that an end of heat exchanger 513 forms connects an end of high temperature pipe arrangement 548, and the other end of this high temperature pipe arrangement 548 provides the top (present embodiment is the upper end) of jar 530 to be connected with above-mentioned hot water.The downstream of the link position of the above-mentioned high temperature pipe arrangement 598 of this high temperature pipe arrangement 548 be provided for detecting by in heat exchanger 513 from the heat radiation of radiator 511 or heat exchanger 583 from the heat radiation of radiator 581 and the temperature of the hot water that enters the high temperature in the hot water storing tank 530 that generates go out hot water temperature's sensor T2.
The top of this hot water storing tank 530 connects above-mentioned high temperature pipe arrangement 548, and is provided with from this hot water storing tank 530 interior high-temperature-hot-water conveying ends 537 that take out the hot water of high temperature.The high-temperature-hot-water that connects hot water generator 534 on this high-temperature-hot-water conveying end 537 takes out pipe arrangement 534A.In addition, connect above-mentioned low temperature pipe arrangement 547 in the bottom of hot water storing tank 530, and be provided with from this hot water storing tank 530 interior low-temperature water heating conveying ends 538 that take out the hot water of low temperature.The low-temperature water heating that connects hot water generator 534 on this low-temperature water heating conveying end 538 takes out pipe arrangement 534B.
In addition, taking out to connect on the pipe arrangement 534A to clean at above-mentioned high-temperature-hot-water provides pipe arrangement 600 with hot water, and the hot water of the high temperature in the hot water storing tank 530 that takes out from high-temperature-hot-water conveying end 537 provides pipe arrangement 600 to supply with automatic cleaning devices 509 via cleaning with hot water.This automatic cleaning device 509 is the devices that are used for cleaning above-mentioned cooled containers 507, provides pipe arrangement 600 to take out from cleaning with hot water the hot water that is stored in the high temperature in the hot water storing tank 530, as the clean water use of cooled containers 507.In addition, clean to provide to be provided on the pipe arrangement 600 preventing cleaning and provide the hot water that flows pipe arrangement 600 in to provide valve 602 with hot water to the hot water of the check-valves 601 of hot water storing tank 530 adverse currents and the supply of this hot water that is used to clean water at this with hot water.In addition, not expression among Fig. 5, but clean provide with hot water also can be provided with as required on the pipe arrangement 600 detection this clean with hot water provide pipe arrangement 600 hot water temperature temperature sensor, detect hot water amount's flow sensor or fluid flow switch.
In addition, in the present embodiment, cleaning with hot water provides the hot water of the high temperature of pipe arrangement 600 supplies to be used for cleaning of cooled containers 507, but cleaning with hot water provides pipe arrangement 600 to be connected to be used to the device that carries out beyond the cooled containers 507 for example to carry newborn machine or carry the latex dust road (not shown, wherein a part drops into pipe arrangement 550 with above-mentioned milk and is connected) etc. clean decontaminating apparatus, be utilized as being used for clean their hot water.
In addition, mixing valve 610 is to make from high-temperature-hot-water to take out the hot water of the high temperature in the hot water storing tank 530 that pipe arrangement 534A takes out and take out the hot water of the low temperature in the hot water storing tank 530 that pipe arrangement 534B takes out or take out the water from water supply installation 532 that pipe arrangement 534B supplies with via low-temperature water heating and mix from low-temperature water heating, after being adjusted to suitable temperature, supply with the valve that above-mentioned clean purposes hot water in addition provides load equipment.This mixing valve 610 provides load equipment to be connected with clean purposes hot water in addition respectively.And the hot water that provides load equipment to provide to hot water provides valve to carry out by opening not shown hot water.In addition, the high-temperature-hot-water that is connected with mixing valve 610 takes out pipe arrangement 534A, low-temperature water heating and takes out the check-valves 613 that is provided for respectively on the pipe arrangement 534B preventing to hot water storing tank 530 adverse currents.
In addition, the check-valves 614 of the adverse current that pipe arrangement 612 is provided for preventing hot water storing tank 530 is provided and is used for the temperature sensor T3 that hot water provides control at the hot water that provides the hot water of load equipment that valve is provided to each hot water from mixing valve 610.And supplying with hot water provides the temperature of the hot water of load equipment to be detected by this temperature sensor T3.In addition, it for example is that hot water provides the fire hose of usefulness first-class that hot water provides valve, is not limited to one, also can be a plurality of.In addition, provide at hot water flow sensor or fluid flow switch (flow switch) (not shown) also can be set on the pipe arrangement 612 as required.
In addition, the water supply piping 532A that connects water supply installation 532 in the bottom of hot water storing tank 530 via pressure-reducing valve 532B.Supply with water in 532 pairs of hot water storing tanks of this water supply installation 530, provide for example municipal water of water of the use amount of the hot water in jars 530 with respect to hot water, from water supply piping 532A underfeed from this hot water storing tank 530 in hot water storing tank 530.This water supply piping 532A goes up to get involved feed water valve (not shown) is set, and this feed water valve is normally open normally.
In addition, the bottom of hot water storing tank 530 connects the discharge pipe 560A that discharges the hot water in the hot water storing tank 530 when being used for this hot water storing tank 530 and not using via dump valve 560B.
At this, above-mentioned discharger 536 is used to discharge the water (hot water) in the hot water storing tank 530, is configured in the below of high-temperature-hot-water conveying end 537, and is configured in the top of low-temperature water heating conveying end 538.In the present embodiment, the hot water discharge pipe 536A of this discharger 536 is connected the below of high-temperature-hot-water conveying end 537 of hot water storing tank 530 and the top of low-temperature water heating conveying end 538 via hot water dump valve 536B.Like this, by discharger 536 being configured in the below of high-temperature-hot-water conveying end 537 and the top of low-temperature water heating conveying end 538, thus the hot water in the hot water storing tank 530 that this discharger 536 takes out become than the hot water temperature who takes out from high-temperature-hot-water conveying end 537 low and than the coolant-temperature gage that takes out from low-temperature water heating conveying end 538 high the warm water.Therefore, thus can open as required hot water discharge pipe 536B in hot water storing tank 530, discharge the hot water of temperature.
On the other hand, dispose a plurality of hot water storage sensor T4 with appropriate intervals from top to bottom in the outside of hot water storing tank 530.This hot water storage sensor T4 is used for detecting respectively the temperature of the each several part that is stored in the hot water in the hot water storing tank 530 and the sensor that has or not of hot water.Like this, change in elevation and a plurality of hot water storage sensor T4 are set detects the temperature of each several part, thereby on one side can grasp from the top of hot water storing tank 530 to the Temperature Distribution of bottom, detects the amount of the hot water of storages in the hot water storing tank 530 on one side simultaneously.
In addition, the generation that load and each load be provided of the capacity of above-mentioned hot water storing tank 530 hot water that need take into full account amount, the supposition of the milk of the cooled object that drops into cooled containers 507 constantly etc. decides.That is, when operation cooling is not to take out the water of low temperature but the hot water of high temperature from the bottom of hot water storing tank 530, the water passage 512 of inflow heat exchanger 513, then the heat dissipation capacity of radiator 511 significantly reduces, the result, and the cooling capacity and the COP in refrigerant loop 502 also worsen.Therefore, the capacity of hot water storing tank 530 need be the water that can often take out low temperature from the bottom of this hot water storing tank 530, the hot water storing tank of the sufficient volume of the water passage 512 of inflow heat exchanger 513.
Particularly, the condition that need be used is studied respectively, but for example do not use simultaneously under the situation of hot water with cooling running, preferred capacity and cooling the running once maximum as the milk of cooled object of input refrigerant container 507 down equate or compared with many hot water storing tanks.For example, the cooled object (milk) that drops into cooled containers 507 is that the capacity of hot water storing tank 530 is preferably greater than or equals the capacity of 500 lift degree under 500 liters the situation.In addition, suppose in the cooling running and use under the situation of hot water that the capacity of hot water storing tank 530 also can be littler than above-mentioned capacity.
In addition, above-mentioned automatic cleaning device 509 comprises: circulate and clean loop 630, it connects in turn cleans with circulating pump 631, clean pipe arrangement 632, cooled containers 507, taking-up valve 552B, circulation transfer valve 634 and the clean pipe arrangement 635 that returns; Clean water drain passageway 640, it is connected with the clean pipe arrangement 635 that returns in the clean loop 630 of this circulation via cleaning with dump valve 640B; Clean with surge tank 650, it is connected with the clean pipe arrangement 635 that returns that loop 630 is cleaned in circulation.
Clean with connecting at least one the washing agent supplying tubing 652, the water supply piping 654 that is used to supply with clean water (present embodiment is municipal water) that are used for supplying with washing agent or bactericide etc. on the surge tank 650, being used for providing pipe arrangement 600 with hot water from the clean of hot water that above-mentioned hot water provides loop 503 to supply with to clean usefulness.Feed water valve 654B is set on water supply piping 654, controls to the water supply of cleaning with surge tank 650 by this feed water valve 654B.Be provided for supplying with the washing agent supply pump (not shown) of washing agent on washing agent supplying tubing 652, the other end of cleaning supplying tubing 652 is connected with detergent container (not shown).
The action of the freezing cycle device 500 of present embodiment is described according to above structure.
(1) cooled object (milk) cooling action
Action when at first, cooling being described as the cooling running of the milk of cooled object.By above-mentioned milk drop into pipe arrangement 550 connect with not shown carry that newborn machine links to each other carry latex dust road and cooled containers 507, open input port valve 550B, with the milk input cooled containers 507 that has just proposed.At this moment, milk taking-up valve 552B is a closing state.The body temperature same degree of the temperature of the milk after the proposition and ox or low slightly, 35 ℃ specifically～38 ℃ degree.Therefore,, keep the quality of milk, and running refrigerant loop 502, carry out the cooling and the cold insulation of milk for preventing to produce bacterium.
Carry the compressor 510 in breast beginning back (the milk input begins the back), driving refrigerant loop 502, also drive mixer 575 simultaneously.Usually, deposit the milk of ormal weight in cooled containers 507, the drive compression machine 510 then, begin to cool down action, consider not occur freezing, and prevent the idle running of mixer 575, also can begin the while or before the milk input, begin to cool down action with the milk input.
Inlet from radiator 511 enters in the heat exchanger 513 refrigerant of the HTHP of discharging from compressor 510 via high pressure coolant piping 540.And the cold media gas of this HTHP is discharged heat to the water of the hot water storing tank 505 that flows and is cooled in the water passage 512 that is provided with radiator 511 heat exchanges in the process of the radiator 511 by heat exchanger 513, become low temperature.On the other hand, the water under the thermolysis of this radiator 511 in the water passage 512 is heated, and generates the hot water of high temperature.
At this moment, in this radiator 511, the refrigerant state is the above liquid state of common critical pressure.Promptly, in the present embodiment, use carbon dioxide as refrigerant, so the refrigerant pressure in the radiator 511 is more than the critical pressure, owing to do not generate the condensing of refrigerant in the radiator 511, so towards outlet, the temperature of refrigerant reduces gradually along with the water-cooled in water passage 512 from the inlet of radiator 511.On the other hand, in the water passage 512 of heat exchanger 513, the temperature of water, rises along with the heat absorption of refrigerant to outlet gradually from inlet.Like this, by using carbon dioxide refrigerant that the refrigerant pressure in the radiator 511 is become more than the critical pressure, then with in the past refrigerant for example the condensing heat radiation of fixing of the such temperature one of HFC class refrigerant compare, can carry out the high heat exchange of efficient, and can generate the hot water of high temperature.In addition, in this heat exchanger 513, constitute the coolant path of radiator 511 and water passage 512 be arranged to as previously described relative current to, so can make water and refrigerant carry out heat exchange more efficiently.
And, carry out repeatedly discharging and entering suction line 545 by the refrigerant of evaporimeter 516 evaporation from this evaporimeter 516, via check-valves 518, accumulator 517, suck the circulation of compressor 510 again from low-pressure side (suction portion).By carrying out above circulation repeatedly, thereby, generate hot water by heat radiation simultaneously from radiator 511 by the heat absorption cooling milk of evaporimeter 516.
In addition, above-mentioned carry breast and finish after, stop to drop into milk to cooled containers 507, but after, still continue above-mentioned cooling running arrive the temperature of regulation at milk before.At this, the temperature of milk is detected by the milk temperature sensor T5 on the outer peripheral face that is installed in inboard jar 570.The temperature that finishes the regulation of cooling running is meant from suppressing to generate bacterium in the milk, keeps the viewpoint consideration of quality and sets about specifically 4 ℃.In addition, in the cooling running, become the value of regulation by the aperture of variable expansion valve 514 by the temperature of the detected discharge refrigerant of discharge temperature sensor T1 on the high pressure coolant piping 540 of being located at refrigerant loop 502.Particularly, risen above the value of regulation by the detected refrigerant temperature of discharge temperature sensor T1, then the aperture of expansion valve 514 increases.On the contrary, be lower than the value of regulation by the detected refrigerant temperature of discharge temperature sensor T1, then the aperture of expansion valve 514 is dwindled.Thus, can generate high efficiency running under the appropriate condition of running of the hot water that is applicable to the high temperature of cleaning purposes.
In addition, the rotating speed of the compressor 510 in the cooling running can be certain, also can be by regulating frequencies such as frequency converters.
Hot water when (2) cooling is turned round provides the action in loop 503
Hot water when then, the cooling running being described provides the action in loop 503.At first, triple valve 547A switches, make the water inflow circulating pump 531 from the bottom of hot water storing tank 530, triple valve 547B switches, and makes the heat exchanger 513 that flows into refrigerant loop 502 (refrigerant loop 502 is used in the milk cooling) by the water of flow control valve 535.
And, above-mentioned cooling running beginning, then hot water provides the circulating pump 531 in loop 503 to start, the hot water of low temperature or water (following province is water slightly) suck circulating pump 531 from the bottom of hot water storing tank 530 through low temperature pipe arrangement 547, are forced into the low temperature pipe arrangement 547 of heat exchanger 513 sides that are connected with the outlet of this circulating pump 531.Thus, the water that extrudes from circulating pump 531 is through flow control valve 535 and in the inlet inflow heat exchanger 513 of water passage 512.In the heat exchanger 513, make the refrigerant that flows in the water that flow in the water passage 512 and the radiator 511 carry out heat exchange like that and be heated from radiator 511 and be heated the hot water of generation high temperature by above-mentioned.And the hot water of discharging the high temperature of heat exchanger 513 from the outlet of water passage 512 injects in the hot water storing tank 530 on the top (upper end) from hot water storing tank 530 by the high temperature pipe arrangement 548 in hot water storage loop 505.In this hot water storing tank 530, inject the hot water of the high temperature that is generated by heat exchanger 513 from top, take out water from the bottom, so utilize the different density contrast of the temperature of water, top stores the water of high temperature, and the bottom stores the water of low temperature.
In addition, above-mentioned flow control valve 535 is regulated the flow of water, makes the temperature of hot water of outlet of the water passage 512 of heat exchanger 513 become the value of regulation.In the present embodiment, according to controlling flow control valve 535 by the temperature of the hot water of water passage 512 outlets that go out the heat exchanger 513 that hot water temperature's sensor T2 detects.That is, by go out hot water temperature's sensor T2 detect the temperature of hot water of water passage 512 outlet than under the high situation of the temperature of regulation, the aperture of flow control valve 535 increases.Thus, can increase the internal circulating load (flow) of the water of circulation in this hot water storage loop 505.
On the other hand, than under the low situation of set point of temperature, the aperture of flow control valve 535 is dwindled by the temperature of the hot water that goes out 512 outlets of the detected water passage of hot water temperature's sensor T2.Thus, the internal circulating load (flow) of the water of circulation can reduce in this hot water storage loop 505.In addition, in the present embodiment, the temperature of the hot water that goes out 512 outlets of hot water temperature's sensor T2 detection water passage that the middle part, way of high temperature pipe arrangement 540 is provided with, but be not limited to this, also can temperature sensor be set, detect the temperature of the hot water of water passage 512 outlets in water passage 512 outlets of heat exchanger 513.In addition, the temperature of afore mentioned rules is to be suitable for the temperature that hot water provides purposes, preferably determines according to use in the scope of 50 ℃～85 ℃ of degree particularly.
As mentioned above, in the cooling running of the freezing cycle device 500 of present embodiment, the temperature that milk after the proposition of input cooled containers 507 is cooled to stipulate in order to keep its quality, and generate the hot water of high temperature by the heat radiation of the high temperature side in refrigerant loop 502, and can be in hot water storing tank 530 stored hot water.
(3) cooled object (milk) cold insulation action
Above-mentioned cooling running makes the temperature of milk arrive the value of regulation, and then compressor 510 stops, expansion valve 514 full cut-offs, and stop mixer 575, and finish the cooling running, be stored in the cold insulation running of the above-mentioned milk in the cooled containers 507.In this case, cooled containers 507 is heat insulation by heat-barrier material 574 as mentioned above, but in storing for a long time owing to invade and milk temperature is risen from the heat of outside.
Therefore, stop in the cold insulation running also can continuing to detect the milk temperature (hereinafter referred to as standby) that is stored in cooled containers 507 inside under the state of compressor 510 grades by milk temperature sensor T5, milk temperature becomes more than the value of regulation, the cooling running that then begins to rise, cooling milk.And, thereby be cooled to set point of temperature by the cooling running milk temperature in the cold insulation running, then stop this cooling running, become holding state again.About specifically 4.5 ℃ of the temperature of the regulation of the cooling running in the beginning cold insulation running, the temperature that stops to cool off the regulation of running is about 4 ℃.
During standby be with expansion valve 514 full cut-offs for and be located at evaporimeter 516 on the suction line 545 and the check-valves 518 1 between the accumulator 517 and work and prevent that refrigerant from flowing to evaporimeter 516 from the high-pressure side in refrigerant loop 502, suppresses as invading heat in the milk of cooled object.In addition, also can replace check-valves 518 on suction line 545, or replace expansion valve 4 on the coolant piping 542 or on coolant piping 541 intercepter valve (IV) etc. being set, when the standby of cold insulation running, close this intercepter valve (IV) and also can play effect same.
At this, intermittently drive mixer 575 during the standby of cold insulation running with certain interval.For example, carry out two minutes stirring running with 30 minutes interval.The state that stops mixer 575 is down because the density contrast that the difference of temperature causes and produce the Temperature Distribution that forms on the layer in the inside of cooled containers 507, so can not carry out temperature survey accurately.
Same about the effect in the refrigerant loop 502 of cold insulation running and the action that hot water provides loop 503 etc. with the cooling running of discussing previously, so do not repeat them here.In the freezing cycle device 500 of present embodiment, in the cooling running in cold insulation running also the same with the cooling of milk can effectively utilize cooling the time heat extraction and hot water is provided.
(4) operation mode of the cooling running on general farm and cold insulation running
Cooling running and cold insulation running about the input of following the milk when carrying breast more than have been described, next the operation mode of the cooling running and the cold insulation running on general farm has been described.
In the general farm, carried out carrying breast about 2～3 times in 1st, for the second time later Ruzhong of carrying, cooling finishes and stores and append the milk of just carrying behind the breast in the cooled containers 507 of the milk in the cold insulation.As a result, because the milk temperature of cooled containers 507 inside rises,, carry out the cold insulation running so cooling running beginning with similarly above-mentioned, arrives the temperature of regulation, and stops the cooling running.
In addition, come the taking-up collection of the milk (dress) of the milk of self-cooling container 507 to divide to carry out every day with the next day carry out.Therefore, till the milk collection dress, utilize the cooling running and the cold insulation running of the input of milk to carry out 2～6 times repeatedly when carrying breast first.
(5) clean running
Then, clean running is described.As mentioned above, the milk of cooling takes out from above-mentioned conveying end when the milk collection is adorned in cooled containers 507.Particularly, milk takes out valve 552B and connects milk taking-up pipe arrangement 552, opens milk and takes out valve 552B, takes out milk from cooled containers 507.And, take out milk after, be the cleaning that keeps in the cooled containers 507, suppress bacterial reproduction, guarantee the quality of milk and utilize automatic cleaning device 509 to clean running.
Usually, the cleaning when milk is carried out after cooled containers 507 takes out of cooled containers 507, so every day the collection dress situation next day carry out once, the next day collection situation about adorning carried out once in following two days.In addition, in the present embodiment, can carry newborn machine or carry in the clean operation such as latex dust road the hot water of cleaning usefulness is provided not shown, but carry newborn machine or carry the latex dust road clean be to finish to carry out carrying breast at every turn, carried out 2～3 times in 1st.
The operation of cleaning when cleaning the situation of cooled containers 507 with when cleaning situations such as carrying milk-line, be identical basically.That is, utilize rinsing of water wash (The The ぎ) operation, utilize rinsing of hot water wash operation, utilize multiple washing agent for example bases washing agent or acid detergent etc. clean operation, utilize the sterilization process of bactericide.In each operation like this, hot water or water are provided, and after the washing agent and bactericide of regulation kind is provided with ormal weight, as required in device (advance carrying out under the situation about cleaning of cooled containers 507 cooled containers 507 in) with the stipulated time this detergent remover (mixing materials of above-mentioned hot water or water and washing agent etc.) to be circulated clean, then detergent remover is discharged.
In addition, above-mentioned each operation order is according to the rules carried out necessary number of times, for example at first utilizes rinsing of water to wash operation, then is after utilizing the washing operation, utilize hot water and bases washing agent with rinsing of hot water of hot water, utilizes the sterilization process of bactericide.
After the end of milk collection dress, before cleaning, pull down milk from taking-up valve 552B in advance and take out pipe arrangement 552, return the clean water of pipe arrangement 635 inflows to cleaning, take out valve 552B and become open mode in advance from taking out valve 552B.Utilizing rinsing of water to wash in the operation, closing and clean, cleaning under the state that stops with circulating pump 631 and open feed water valve 654B with draining valve 640B and circulation transfer valve 634, via water supply piping 654 to the clean water of cleaning with surge tank 650 supply ormal weights.In addition, clean the value that whether arrives regulation with the surge tank 650 interior water yields by for example judging by the detection of floating type level switch (レ ベ Le ス イ Star チ) etc.
Clean with surge tank 650 interior water yields arrival settings and then close feed water valve 654B, make circulating pump 631 become operating condition, pass through clean pipe arrangement 632, supply with in the cooled containers 507 thereby clean with the water in the surge tank 650.When to cooled containers 507 in, injecting water, can effectively clean from cleaning pipe arrangement 632, thus water spray from nozzle, and less than unevenly to cooled containers 507 interior spray.Mixer 575 in addition as required also can turn round.
Drain as if the water of cleaning with in the surge tank 650, then stop clean running, open circulation transfer valve 634 and use draining valve 640B, rinse wash water from cleaning 640 discharges of water drain passageway with cleaning with circulating pump 631.More than utilize rinsing of water to wash in the operation, can carry out stipulated number repeatedly as required.
Utilizing rinsing of hot water to wash operation utilizes rinsing of water to wash operation to carry out same action with above-mentioned basically.Different only is to replace water that the hot water of high temperature is provided.Promptly, utilize rinsing of water to wash in the operation, open feed water valve 654B providing of water is provided, but utilizing rinsing of hot water to wash in the operation, the hot water that opening hot water provides valve 602 will be stored in the high temperature in the hot water storing tank 530 provides pipe arrangement 600 supplies to clean with surge tank 650 via cleaning with hot water.Other actions are the same, repeat no more.
Utilize in the clean operation of washing agent, close to clean and drink circulation transfer valve 634 with dump valve 640B, clean and under the state that stops, opening hot water with circulating pump 631 valve 602 is provided, provide pipe arrangement 600 pairs of clean hot water that ormal weight is provided with surge tank 650 via cleaning with hot water.Simultaneously, drive washing agent supply pump (not shown), via washing agent supplying tubing 652 washing agent of the regulation kind of ormal weight is supplied with and cleaned with surge tank 650.The kind of the washing agent of supplying with and amount determine in advance that according to each operation the amount of this washing agent is regulated according to the driving time of washing agent supply pump (not shown).
Clean with the hot water amount's (mixed liquor of hot water and washing agent) in the surge tank 650 and arrive setting, then close hot water valve 602 is provided, make circulating pump 631 become operating condition, supply with in the cooled containers 507 by cleaning pipe arrangement 632 thereby clean with the detergent remover in the surge tank 650.When in cooled containers 507, injecting detergent remover, can effectively clean from cleaning pipe arrangement 632, thus detergent remover sprayed from nozzle, and not unevenly to cooled containers 507 interior spray.Mixer 575 in addition as required also can turn round.
Disappear if clean, then stop to clean running with circulating pump 631 with the water in the surge tank 650.Be stored in the cooled containers 507 before the detergent remover of ormal weight, carry out such action repeatedly, close circulation transfer valve 634 and the clean dump valve 640B that uses, open hot water again with such state valve 602 is provided, to cleaning, afterwards, close hot water valve 602 is provided with the hot water of supplying with ormal weight in the surge tank 650, drive circulating pump 631, to supplying with hot water in the cooled containers 507.At this, supply with in the cooled containers 507 and the amount of the hot water that store can be learnt according to the capacity of surge tank 650 and the number of times that carries out above-mentioned action repeatedly, so the number of times that is stored in surge tank 650 by prior setting can be controlled suitable amount.
Store the detergent remover (mixed liquor of hot water and washing agent) of ormal weight in cooled containers 507 after, circulation transfer valve 634 is opened, and drives with the stipulated time and cleans with circulating pump 631.Detergent remover, is cleaned with circulating pump 631 and clean pipe arrangement 632 and is returned cooled containers 507 in turn through taking out valve 552B, circulation transfer valve 634, cleaning and return pipe arrangement 635 from cooled containers 507, circulates in loop 630 is cleaned in circulation.Thus, can remove the dirty dirt of the milk of cooled containers 507 inside.When in cooled containers 507, injecting detergent remover from clean pipe arrangement 632 in addition, can effectively clean, so from nozzle injection detergent remover and not unevenly to cooled containers 507 interior spray.Mixer 575 in addition as required also can turn round.
Carry out the circulation of detergent remover with the stipulated time after, stop to clean, open to clean and use dump valve 640B, discharge circulation from discharge pipe 640 and clean the interior detergent remover in loop 630 with circulating pump 631.
The action of sterilization process is same with the action of the clean operation of utilizing washing agent basically.Different is: the washing agent of injection is a bactericide; Replace thermal water utilization water; And the time of circulation etc., etc.Sterilization process cooperates carry out the service time of next time, places the stipulated time down with the intrasystem state that bactericidal liquid (mixed liquor of bactericide and water) is remained on cooled containers 507 or the clean loop 630 of circulation, thereby improves bactericidal effect.About no longer describing in detail with the shared action of the clean operation of washing agent.
In addition, during the standby of cold insulation running, the heat loss of bringing in order to reduce refrigerant to enter evaporimeter 516 inside, expansion valve 514 is become full-shut position, but the abnormal pressure of evaporimeter 516 inside when avoiding carrying out hot water clean particularly when cleaning running, and preferably expansion valve 514 is become the state of closing.
In addition, the hot water of requirement provides load big, and the hot water that only is the amount that generated by milk cooling is under the not enough situation, to clean in the running and also can cool off running, generates hot water.For example, in sterilization process, bactericidal liquid remains under the state in the cooled containers 507 cools off running, thereby can provide running (heat pump (ヒ one ト Port Application プ) running) as the high efficiency hot water of thermal source with bactericidal liquid.In addition, can cool off running (hot water provides running) as required with in the water additional input cooled containers 507 as thermal source.
(6) hot water of the purposes beyond the clean purposes provides action
Then, illustrate that the hot water beyond the above-mentioned clean purposes provides action.Provide the hot water of load to provide for cleaning the outer hot water of purposes, provide valve to carry out by opening above-mentioned hot water.The hot water that opening hot water provides valve then to be stored in the high temperature in the hot water storing tank 530 takes out pipe arrangement 534A and flows into mixing valve 610 via high-temperature-hot-water from the top of hot water storing tank 530, and takes out pipe arrangement 534B inflow mixing valve 610 from the low-temperature water heating that the hot water of the low temperature of bottoms in the water of water supply installation 532 or the hot water storing tank 530 is connected via the bottom with hot water storing tank 530.And mixing valve 610 mixes the hot water of the hot water of high temperature and water or low temperature, be adjusted to the temperature of regulation after, hot water provides valve to supply with each hot water via hot water load equipment is provided.
In addition, the temperature of the hot water of supply provides the hot water on the pipe arrangement that valve is connected to provide temperature sensor T3 to detect mixing valve 610 and hot water by being located at.In addition, feed water valve is often the state of opening normally, supplies with hot water from the water supply piping 532A of water supply installation 532 and provides in the hot water storing tank 530 in loop 503 so be equivalent to supply with other hot water and provide the municipal water of amount of the hot water of load equipment.
As mentioned above, freezing cycle device 500 according to present embodiment, cooling is as the milk of cooled object the time, effectively utilize the refrigerant loop 502 that cooling procedure takes place high temperature side heat and generate hot water, and utilize to adopt the excessive critical cycle of carbon dioxide refrigerant and but high temperature goes out hot water, this hot water is used for cleaning of above-mentioned cooled containers 507 grades etc.Therefore, and boil the situation that hot water supplies with and compared by boiling equipment etc. in order to clean purposes in the past, and can cut down the energy of consumption significantly.In addition, discharge the heat of atmosphere from the high temperature side in refrigerant loop 502 and also can cut down, so also can suppress the rising of environment temperature.
(7) use the hot water in the second refrigerant loop 508 that running is provided
Then, the action of using the second refrigerant loop 508 is described.The second refrigerant loop 508 when hot water provide load greatly, under the not enough situation of the hot water that obtains when only being cooling milk, the hot water that can generate hot water from the thermal source heat absorption beyond the milk of air etc. provides running (heat pump running).
The action in the second refrigerant loop 508 and above-mentioned refrigerant loop 502 are roughly the same, so no longer describe in detail.Different with refrigerant loop 502 is that refrigerant absorbs heat from atmosphere.That is, from atmosphere heat absorption, utilize heat exchanger 583 and carry out water passage 582 heat extractions of heat exchange with radiator 581 to being located at by this heat by evaporimeter 586 for refrigerant.Thus, the water that flows in water passage 582 is heated, and generates the hot water of high temperature.
Hot water provides in the running, the aperture of variable expansion valve 584 and make by the detected discharge refrigerant temperature of discharge temperature sensor T7 on the high pressure coolant piping 590 of being located at the second refrigerant loop 508 and become setting.Particularly, generate above setting, then increase the aperture of expansion valve 584 by the detected refrigerant temperature of discharge temperature sensor T7.On the contrary, the detected refrigerant temperature of discharge temperature sensor T7 is lower than setting, then dwindles the aperture of expansion valve 584.Thus, can in being applicable to the running of hot water of the high temperature of cleaning purposes, generation under appropriate condition, carry out high efficiency running.
Then, illustrate that this hot water provides the hot water in when running that the action in loop 503 is provided.In this case, triple valve 547A switches the water that makes from hot water storing tank 530 bottoms and flows into circulating pump 531, and triple valve 547B switches the water that makes by flow control valve 535 and flows into heat exchanger 583.Hot water provides in the running, and hot water provides circulating pump 531 running in loop 503, the hot water of low temperature or water from the bottom of hot water storing tank 530 by low temperature pipe arrangement 547 and through circulating pump 531, flow control valve 535, the inlet on the current road 582 of inflow heat exchanger 583.In the heat exchanger 583, as mentioned above, the water that in current road 582, flows by with radiator 581 in the refrigerant that flows carry out heat exchange and be heated the hot water of generation high temperature.And the hot water of the high temperature of discharging in the current road 582 of heat exchanger 583 injects in the hot water storing tank 530 from the top of hot water storing tank 530 via high temperature pipe arrangement 598, high temperature pipe arrangement 548 in turn.In hot water storing tank 530, inject the hot water of high temperature, take out the water of low temperature from the bottom,, make the water of low temperature be stored in the bottom so the density contrast that utilizes the difference of the temperature of water to cause makes the water of high temperature be stored in top in the hot water storing tank 530 from top.
In addition, flow control valve 535 is regulated the flow of water, makes the temperature of hot water of outlet on the current road 582 of heat exchanger 583 become setting.Particularly, the temperature of the hot water of the outlet on current road 582 is than the aperture of augmented flow control valve 535 under the high situation of the temperature of regulation, increase the flow of water, on the contrary when the hot water of the outlet on current road 582 than the aperture that reduces flow control valve 535 under its low situation, the flow of minimizing water.The temperature of the hot water of the outlet on current road 582 is detected by the hot water temperature's sensor T2 that goes out that is installed on the high temperature pipe arrangement 548.In addition, the temperature of afore mentioned rules is applicable to that preferably clean purposes or other hot water provide the temperature of purposes, determine according to use particularly in the scope of 50～85 ℃ of degree.
As mentioned above, it is that amount when the hot water that is produced by milk cooling running provides under underloaded situation with respect to the hot water that requires and carries out that the hot water in the second refrigerant loop 508 provides running, and the amount of hot water as requested decides carries out the amount that hot water provides the hot water that the length of the time of operation promptly generates.Wherein, all be full of by high-temperature-hot-water in the hot water storing tank 530, the hot water of high temperature was from the bottom inflow heat exchanger 513 of hot water storing tank 530 when then cooling moved, and cooling capacity is drunk efficient and significantly reduced, and is difficult to carry out the cooling of milk.Thus, provide in the running, can't help the hot water of high temperature to fill up in the whole hot water storing tank 530, there is no need to guarantee in advance to be equivalent to cool off the cold water part of the amount that running uses in the bottom of hot water storing tank 530 at hot water.
The hot water in the second refrigerant loop 508 provides the amount of the hot water that the amounts that are stored in the running in the hot water storing tank 530 depend on amount (raising scale) that the condition of using freezing cycle device 500 is a milk and use etc., for example consider such control: the quantitative change of hot water is below 1/5 of hot water storing tank 530, then beginning hot water in the second refrigerant loop 508 provide running, stop hot water with the next second refrigerant loop 508 running is provided for 1/2.In addition, the amount that is stored in the hot water of hot water storing tank 530 can be grasped according to hot water storage sensor T4.
As mentioned above, the freezing cycle device 500 of present embodiment has the second refrigerant loop 508, is that the hot water of thermal source provides to turn round and generates insufficient hot water so the hot water that produces when only cooling off with milk just can work as under the situation that the hot water that requirement can not be provided provides load by carrying out with the atmosphere.Like this, do not need to append and carry out the auxiliary equipment etc. that boils that hot water provides, and can carry out high efficiency heat-pump hot-water and provide, further cut down energy consumption.
(8) triple valve 547A change action
The action of triple valve 547A then, is described.Triple valve 547A can prevent that the hot water of low temperature from flowing into the top of hot water storing tank 530 when cooling running and hot water provide the startup of running and when stopping, and it is random to make hot water storing tank 530 temperature inside form fault.Provide the beginning stipulated time TL1 of running from cooling off running or hot water, hot water storing tank 530 sides of blocking triple valve 547A will be switched inflow circulating pump 531 from the hot water (or water) of bypass pipe arrangement 549.Thus, when cooling running or hot water provide the beginning stipulated time TL1 of running, the hot water that comes from water passage 582 streams of the heat exchanger 583 in the water passage 512 of heat exchanger 513 or the second refrigerant loop 508 does not flow into hot water storing tank 530, and flows the loop circuit such via the water passage 582 of the heat exchanger 583 in the water passage 512 of bypass pipe arrangement 549, triple valve 547A, circulating pump 531 Returning heat-exchangers 513 or the second refrigerant loop 508 from high temperature pipe arrangement 548.
And, cooling running or hot water provide the beginning stipulated time TL2 of running, flow control valve 535 is fixed on the aperture of the regulation that can guarantee sufficient flow, slowly reduce aperture through behind the stipulated time TL2, reduce flow, regulate aperture and make that finally being installed in high temperature pipe arrangement 548 goes out hot water temperature's sensor T2 and become setting.
Through behind the stipulated time TL1, triple valve 547A switches, and blocking bypass pipe arrangement 549 sides make the water inflow circulating pump 531 from the bottom of hot water storing tank 530.As a result, come the hot water of water passage 582 of the heat exchanger 583 in the water passage 512 of automatic heat-exchanger 513 or the second refrigerant loop 508 to flow into hot water storing tank 530.
Above-mentioned stipulated time TL1 and TL2, also regular hour in advance can be that benchmark is operated with the temperature of the hot water of the outlet of the heat exchanger 583 that goes out the detected heat exchanger 513 of hot water temperature's sensor T2 or the second refrigerant loop 508 also.From the cooling running, flow control valve 535 is fixed to the aperture of regulation, go out more than the value that the hot water temperature rises to regulation, then the aperture of flow control valve 535 reduces slowly, and then go out hot water temperature's rising, arrive the temperature of second regulation, then switch three-way valve 547A, with blocking bypass pipe arrangement 549, make water flow into circulating pump 531 from hot water storing tank 530 bottoms.
According to more than, the temperature that has been stored in the hot water in the hot water storing tank 530 forms fault disorderly, the problem that the temperature of the hot water of storage reduces can be avoided.As a result, the heat loss of the hot water of storage reduces, and can effectively utilize hot water.
In addition, because can't help flow control valve 535 when cooling running or hot water storage running beginning goes out hot water temperature's control, and guarantee sufficient flow with certain aperture, can avoid the abnormal ascending or the abnormal pressure of the discharge temperature after compressor 510 (or compressor 580) starts.
On the other hand, after cooling running or hot water provide running to stop, when the running from compressor 510 (or compressor 580) stops through official hour or go out the hot water temperature arriving below the setting, then switch, hot water storing tank 530 sides of blocking triple valve 547A make the hot water (or water) from bypass pipe arrangement 549 flow into circulating pump 531.And, afterwards, running official hour circulating pump 531, thereby do not flow into hot water storing tank 530 from the hot water of the water passage 582 of the heat exchanger 583 in the water passage 512 of heat exchanger 513 or the second refrigerant loop 508, and flowing the such loop circuit of the water passage 582 of the heat exchanger 583 in the water passage 512 of inflow heat exchanger 513 or the second refrigerant loop 508 through bypass pipe arrangement 549, triple valve 547A, circulating pump 531 from high temperature pipe arrangement 548.
Therefore, for the hot water that the prevents low temperature top from hot water storing tank 530 flows in the hot water storing tank 530, make hot water storing tank 530 temperature inside form fault disorderly, and carry out the suitable cooling of the heat exchanger 583 in the heat exchanger 513 or the second refrigerant loop 508.
In addition, during except above-mentioned startup and when stopping, carrying out common cooling running or hot water when running is provided, triple valve 547A switches, and blocking bypass pipe arrangement 549 sides will flow into circulating pump 531 from the water of hot water storing tank 530 bottoms.In addition, when cooling running and hot water provided running all not carry out, triple valve 547A switched, and blocking hot water storing tank 530 sides are communicated with bypass pipe arrangement 549 sides.When cooling running and hot water provide running all not carry out, by switching to above-mentioned state, and under the situation that the hot water of cleaning high temperature such as purposes provides, the cold water that flows into hot water storing tanks 530 bottoms from water supply piping 532 can be avoided it flows into hot water storing tank 530 via the hot water storage loop 505 of heat exchanger 583 sides in the heat exchanger 513 or the second refrigerant loop 508 top, makes the problem of temperature reduction of the hot water of supply.
Then, illustrate the high-temperature-hot-water of hot water storing tank 530 take out high-temperature-hot-water conveying end 537 that pipe arrangement 534A connects below and low-temperature water heating take out pipe arrangement 534B connection low-temperature water heating conveying end 538 above the discharging operation of water of 536 pairs of hot water storing tanks 530 of discharger of connecting.Be located at that hot water dump valve 536B on the hot water discharge pipe 536A of discharger 536 normally closes, under this state, the water in the hot water storing tank 530 are not discharged from hot water discharge pipe 536A.
And, in the cooling running, under the temperature (temperature of the water of the inlet of the water passage 512 of heat exchanger 513) of water that is used for making water in radiator 511 and the hot water storing tank 530 to carry out heat exchanger 513 circulations of heat exchange arrived situation more than the setting, the hot water dump valve 536B of hot water discharge pipe 536A opened.Thus, the hot water low temperature that takes out than the high-temperature-hot-water conveying ends in hot water storing tank 530 537 and than the water high temperature that takes out from low-temperature water heating conveying end 538, the hot water of temperature discharge hot water storing tank 530 outsides from hot water discharge pipe 536A.
With the discharge of the hot water of this hot water discharge pipe 536A simultaneously, the cold water of amount that will be suitable with the hot water amount who discharges is supplied with in the hot water storing tank 530 from the water supply piping 532A of water supply installation 532.In addition, in the freezing cycle device 500 of present embodiment, the temperature of the water of the inlet of the water passage 512 of heat exchanger 513 rises to more than the setting for example 25 ℃～situation more than 30 ℃, by the water in the discharger 536 discharge hot water storing tanks 530, but be not limited to the temperature of water of inlet of the water passage 512 of the such heat exchanger of present embodiment 513 by the temperature that discharger 536 is discharged the water in the hot water storing tanks 530, it also can be temperature by the water in the detected hot water storing tank 530 of hot water storage sensor T4, in addition, the temperature of the refrigerant that the temperature of refrigerant or radiator 511 are discharged in the radiator 511 of heat exchanger 513 also is fine.In addition, discharge the hot water of outside of hot water storing tank 530 so long as suitable purposes is utilizable from above-mentioned hot water discharge pipe 536A.
Like this, discharge hot water from hot water discharge pipe 536A to the outside of hot water storing tank 530, simultaneously, in this hot water storing tank 530 of the hot water amount's who is equivalent to discharge Cold water supply, thereby can reduce the temperature of the hot water of bottom in the hot water storing tank 530, the hot water after the temperature of bottom reduces in this hot water storing tank 530 or the cold water in this hot water storing tank 530 of water supply installation 532 supplies can be supplied with heat exchanger 513.
Thus, in heat exchanger 513, can guarantee that refrigerant keeps the necessary heat dissipation capacity of cooling effect of evaporimeter 516.Promptly, in heat exchanger 513, the heat of the refrigerant that flows in radiator 511 is fully discharged to the water that flows in water passage 512, refrigerant temperature is reduced, so can keep the cooling capacity of evaporimeter 516, carry out the cooling of cooled object (milk) reliably.
In addition, more than explanation is considered the every of above protection domain as the invention that can be grasped.That is, alternative plan: this freezing cycle device has the high-temperature-hot-water conveying end of being located at hot water storing tank top, the low-temperature water heating conveying end of being located at the hot water storing tank bottom, and this discharger is configured in high-temperature-hot-water conveying end below and low-temperature water heating conveying end top.
Industrial practicality
The invention is not restricted to the foregoing description 5 and carry the cooling and the cold insulation device of the milk behind the breast like that.For example go for also that the relevant cooling device of processing such as food, automatic vending machine, air conditioner and other need cool off and/or other industrial fields of cold insulation.
Claims (5)
1, a kind of freezing cycle device, it has the refrigerant loop that comprises compressor, radiator, decompressor and evaporimeter, bring into play heat effect by heat radiation, and bring into play cooling effect, it is characterized in that by the heat absorption of described evaporimeter from described radiator:
According to the index that the heat dissipation capacity of described radiator can be grasped, guarantee to keep the action of the regulation heat dissipation capacity of the required described radiator of the cooling effect of described evaporimeter.
2, a kind of freezing cycle device, it has refrigerant loop and the hot water storing tank that comprises compressor, radiator, decompressor and evaporimeter, by making water and described radiator in this hot water storing tank carry out heat exchange, thereby being used to heat radiation from this radiator generates hot water and is stored in the described hot water storing tank, and cooling effect is brought into play in the heat absorption by described evaporimeter, it is characterized in that:
This freezing cycle device has the discharger to the water in water supply installation that supplies water in the described hot water storing tank and the described hot water storing tank of discharge,
When the water in the described hot water storing tank or be used to make water in described radiator and the described hot water storing tank to carry out in the temperature of the water that circulates in the heat exchanger of heat exchange or the described radiator or the temperature of discharging the refrigerant of this radiator rises under the situation more than the setting, the water in the described hot water storing tank is discharged by described discharger.
3, a kind of freezing cycle device, it has the refrigerant loop that comprises compressor, radiator, decompressor and evaporimeter, by making water and described radiator carry out heat exchange, thereby be used to generate hot water from the heat radiation of this radiator, and bring into play cooling effect by the heat absorption of described evaporimeter, it is characterized in that:
This freezing cycle device has and is used to cool off the water-cooling apparatus that carries out the water of heat exchange with described radiator,
Under the temperature of carrying out in the temperature of water of heat exchange or the described radiator with described radiator or discharge the refrigerant of this radiator rises to situation more than the setting, cool off the water that this and described radiator carry out heat exchange by described water-cooling apparatus.
4, a kind of freezing cycle device, it has the refrigerant loop that comprises compressor, radiator, decompressor and evaporimeter, by making water and described radiator carry out heat exchange, thereby be used to generate hot water from the heat radiation of this radiator, and bring into play cooling effect by the heat absorption of described evaporimeter, it is characterized in that:
This freezing cycle device has second radiator that is used to cool off the refrigerant of discharging described radiator,
Under the temperature of carrying out in the temperature of water of heat exchange or the described radiator with described radiator or discharge the refrigerant of this radiator rises to situation more than the setting, discharge the refrigerant of described radiator by described second radiator cooling.
5, a kind of freezing cycle device, it has the refrigerant loop that comprises compressor, radiator, decompressor and evaporimeter, by making water and described radiator carry out heat exchange, thereby be used to generate hot water from the heat radiation of this radiator, and bring into play cooling effect by the heat absorption of described evaporimeter, it is characterized in that:
This freezing cycle device has second radiator that is connected side by side with described radiator,
Under the temperature of carrying out in the temperature of water of heat exchange or the described radiator with described radiator or discharge the refrigerant of this radiator rises to situation more than the setting, flow into refrigerant to described second radiator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006050549 | 2006-02-27 | ||
| JP2006050549A JP4592616B2 (en) | 2006-02-27 | 2006-02-27 | Refrigeration cycle equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101029786A true CN101029786A (en) | 2007-09-05 |
| CN100554826C CN100554826C (en) | 2009-10-28 |
Family
ID=38137409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710084711.1A Expired - Fee Related CN100554826C (en) | 2006-02-27 | 2007-02-26 | Freezing cycle device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070199337A1 (en) |
| EP (1) | EP1826510A3 (en) |
| JP (1) | JP4592616B2 (en) |
| CN (1) | CN100554826C (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN100554826C (en) | 2009-10-28 |
| US20070199337A1 (en) | 2007-08-30 |
| JP4592616B2 (en) | 2010-12-01 |
| EP1826510A3 (en) | 2011-06-15 |
| JP2007232225A (en) | 2007-09-13 |
| EP1826510A2 (en) | 2007-08-29 |
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