CN101413738A - Middle and low temperature integrated type refrigerated storage / refrigerating system - Google Patents
Middle and low temperature integrated type refrigerated storage / refrigerating system Download PDFInfo
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- CN101413738A CN101413738A CNA200710181324XA CN200710181324A CN101413738A CN 101413738 A CN101413738 A CN 101413738A CN A200710181324X A CNA200710181324X A CN A200710181324XA CN 200710181324 A CN200710181324 A CN 200710181324A CN 101413738 A CN101413738 A CN 101413738A
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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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/16—Receivers
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/22—Refrigeration systems for supermarkets
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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
- F25B2600/00—Control issues
- F25B2600/21—Refrigerant outlet evaporator temperature
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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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a moderate-and-low temperature integrated cold storage/refrigeration system used for providing the cold storage moderate temperature for preserving food and the like or providing the refrigeration low temperature for preserving drinks and the like in supermarket and convenience store. The system comprises an integrated unit, a moderate temperature cold cupboard, a low temperature refrigeration cupboard and a corresponding connection pipeline; the integrated unit also comprises a public condenser used for condensing a high-temperature and high-pressure gaseous refrigerant in the moderate temperature cold storage system and the low temperature refrigeration system, a public liquid receiver used for storing a high-temperature and high-pressure liquid refrigerant in the moderate temperature cold storage system and the low temperature refrigeration system, a supercooling degree regulating mechanism used for regulating the supercooling degree in the low temperature refrigeration system, and a suction temperature regulating mechanism used for regulating the suction temperature in the low temperature refrigeration system. The moderate-and-low temperature integrated cold storage/refrigeration system has compact structure, convenient installation, better refrigeration performance and higher stability.
Description
[technical field]
The present invention relates to a kind of in low temperature integrated type refrigerated storage/refrigerating system, relate in particular to a kind of be applied to supermarket, convenience store in food, cold drink etc. provided in temperature refrigerate and the integrated form system of cryogenic freezing.
[background technology]
In actual life, supermarket or convenience store provide multiple refrigerated display case, are used for providing when ambient temperature is higher one food, beverage, cold drink etc. are carried out fresh-keeping freezing freezing environment.Usually different product is also inequality to the temperature of freeze preservation demand, and generally speaking, people are divided into cryogenic refrigeration systems and middle temperature refrigerating system with refrigeration system.Cryogenic refrigeration systems provides subzero 30 degrees centigrade cryogenic temperature usually, is mainly used in to carry out freezing product near subzero 30 degrees centigrade, as cold drink etc.In warm refrigerating system subzero 10 degrees centigrade cryogenic temperature is provided usually, be mainly used near the product that need subzero 10 degrees centigrade, carry out freeze preservation, as milk, beverage, food etc.Because cryogenic refrigeration systems is different with the compression ratio of middle temperature refrigerating system, and the Energy Efficiency Ratio of system is also different, and cryogenic refrigeration systems and middle temperature refrigerating system are two autonomous systems of mutually noninterfere at present.Fig. 1 is the structural representation of middle temperature refrigerating system, includes compressor 1, condenser 2, expansion valve 4, reservoir 3, the evaporimeter 5 that links to each other with middle temperature refrigerator and is connected these equipment accordingly, and form the refrigerant tubing 6 of closed loop.During work, after compressing through compressor 1, the gaseous refrigerant of low-temp low-pressure becomes the gas of HTHP.The gaseous refrigerant of this HTHP enters condenser 2 backs to extraneous distribute heat, is converted into the liquid of HTHP, and enters into expansion valve 4 through behind the reservoir 3.Expansion valve 4 reduces the pressure of cold-producing medium and regulates refrigerant flow, and the liquids and gases two phase flow that makes the liquid cold-producing medium of HTHP be converted into low-temp low-pressure enters evaporimeter 5.Near the cabinet interior evaporimeter, also has a fan (not shown), be used for air is blowed to the evaporator plate tube-surface, make low-temp low-pressure liquid refrigerant and air generation heat exchange in evaporimeter 5 coil pipes by the evaporator plate tube-surface, thereby the generation cold air is used for the fresh-keeping storage of different food products in the refrigerator.Cold-producing medium absorbs the gas that heat transfers low-temp low-pressure to, is back to compressor 1, finishes the whole closed circulation of cold-producing medium.Fig. 2 is the structural representation of cryogenic refrigeration systems, and its operation principle and middle temperature refrigerating system are basic identical.Because cryogenic refrigeration systems need produce lower temperature, system has higher relatively compression ratio, in order to protect cryogenic compressor 1, needs to reduce the delivery temperature of cryogenic compressor.Therefore than middle temperature refrigerating system, the cold-producing medium that reservoir 3 flows out in the structure of cryogenic refrigeration systems also distributes a branch road except directly flowing to evaporimeter 5.In this branch road, cold-producing medium is directly got back to compressor 1 after reservoir 3 is flowed through liquid injection valve 7.Like this, the liquid cold-producing medium of HTHP that flows out from reservoir 3 is converted into low-temp low-pressure gas through liquid injection valve 7 expansion absorption heats and directly offers compressor 1.Cold-producing medium in this tributary has reduced the suction temperature of compressor 1, thereby has reduced the delivery temperature of compressor 1, has effectively protected compressor 1.
Existing two kinds of autonomous systems can provide cryogenic refrigeration systems and middle temperature refrigerating system respectively for supermarket, convenience store, have satisfied the storage of varieties of food items different under the middle gentle low temperature requirement.But, because this way adopted independently two cover systems, compressor reducer and condenser that supermarket, convenience store need provide machine room to be used to place two systems usually, this has not only wasted the space of supermarket, convenience store, and has increased field erected complexity.Simultaneously, two autonomous systems have reused condenser, reservoir equipment etc., have wasted raw material, have increased the hardware cost of system, are unfavorable for the saving of the energy and reduce product cost.
Therefore, provide that a kind of compact conformation, whole efficiency are higher relatively, hardware cost is relatively low, easy for installation in low temperature integrated type refrigerated storage/refrigerating system, really be that the present technique field is required.
[summary of the invention]
The object of the present invention is to provide a kind of in low temperature integrated type refrigerated storage/refrigerating system, this system is of compact construction and energy-conservation characteristics, and easy for installation, energy utilization rate is higher relatively.
The objective of the invention is to be achieved through the following technical solutions:
Low temperature integrated type refrigerated storage/refrigerating system in a kind of, be used for providing refrigeration temperature that food etc. is preserved and the freezing low temperature that cold drink etc. is preserved, include an integrated unit, warm refrigerator in one (group), (group) cryogenic freezing cabinet and corresponding connecting pipe, wherein integrated unit also comprises:
A public condenser is used for the condensation of the high temperature and high pressure gaseous refrigerant in warm refrigerating system and the cryogenic refrigeration systems;
A public reservoir is used for the storage of the liquid cold-producing medium of HTHP in warm refrigerating system and the cryogenic refrigeration systems;
A degree of supercooling governor motion is used for regulating the degree of supercooling of cryogenic refrigeration systems; And
A suction temperature governor motion is used to regulate the suction temperature of cryogenic refrigeration systems.
Provided by the present invention a kind of in low temperature integrated type refrigerated storage/refrigerating system, warm compressor (group), cryogenic compressor (group) in wherein also including in the integrated unit.
Provided by the present invention a kind of in low temperature integrated type refrigerated storage/refrigerating system, wherein in warm refrigerator and the cryogenic freezing cabinet product bin that includes evaporimeter, expansion valve respectively and shelve food.
Provided by the present invention a kind of in low temperature integrated type refrigerated storage/refrigerating system, warm compressor (group), cryogenic compressor (group) suction end are connected with the evaporimeter of middle temperature refrigerator, cryogenic freezing cabinet respectively wherein, and exhaust end is connected to the arrival end of public condenser jointly.
Provided by the present invention a kind of in low temperature integrated type refrigerated storage/refrigerating system, wherein the port of export of public condenser is connected to the arrival end of reservoir.
Provided by the present invention a kind of in low temperature integrated type refrigerated storage/refrigerating system, wherein the expansion valve in the integrated unit, intermediate heat exchanger and corresponding connecting pipe constitute the degree of supercooling governor motion.
Provided by the present invention a kind of in low temperature integrated type refrigerated storage/refrigerating system, wherein first arrival end of the intermediate heat exchanger of degree of supercooling governor motion directly is connected with reservoir, second arrival end is connected with reservoir by expansion valve.
Provided by the present invention a kind of in low temperature integrated type refrigerated storage/refrigerating system, wherein first port of export of intermediate heat exchanger is to be connected with cryogenic freezing cabinet arrival end.
Provided by the present invention a kind of in low temperature integrated type refrigerated storage/refrigerating system, wherein the suction temperature governor motion comprises first branch road of the suction end of second port of export that connects intermediate heat exchanger and middle temperature compressor, and second branch road of the suction end of second port of export of connection intermediate heat exchanger and cryogenic compressor, wherein second branch road includes a control valve.
Provided by the present invention a kind of in low temperature integrated type refrigerated storage/refrigerating system, wherein the employing instant inserted and instant using type is connected between integrated unit and middle temperature refrigerator, the cryogenic freezing cabinet.
A kind of refrigeration system is characterized in that, it comprises:
Warm cold storage plant at least one, its comprise at least one in warm evaporimeter;
At least one cryogenic freezing device, it comprises at least one cryogenic vaporizer;
One integrated unit comprises:
Warm compressor at least one is to be connected with middle temperature evaporimeter;
At least one cryogenic compressor is to be connected with cryogenic vaporizer;
Condenser, be with at least one in the exhaust end of warm compressor and at least one cryogenic compressor join, be used for the high temperature and high pressure gaseous refrigerant that condensation is discharged from least one temperature compressor and at least one cryogenic compressor exhaust end;
Reservoir is to be connected with condenser, is used to store the liquid cold-producing medium of HTHP of discharging from condenser;
The degree of supercooling governor motion is to be connected with reservoir and to be connected to cryogenic vaporizer, is used to regulate the degree of supercooling of the cryogenic freezing circulatory system;
The suction temperature governor motion is to be connected with reservoir and to be connected to cryogenic compressor and middle temperature compressor respectively, is used to regulate the suction temperature of the cryogenic freezing circulatory system;
In warm connecting line, be to be connected in reservoir and middle temperature evaporimeter.
Refrigeration system provided by the present invention, wherein the degree of supercooling governor motion comprises the intermediate heat exchanger that is connected to cryogenic vaporizer, and first arrival end of this intermediate heat exchanger directly is connected with reservoir, and second arrival end is connected with reservoir by an expansion valve.
Refrigeration system provided by the present invention, wherein first port of export of intermediate heat exchanger is to be connected with the cryogenic vaporizer of cryogenic freezing device.
Refrigeration system provided by the present invention, wherein the suction temperature governor motion comprises first branch road of the suction end of second port of export that connects intermediate heat exchanger and middle temperature compressor, and second branch road of the suction end of second port of export of connection intermediate heat exchanger and cryogenic compressor, wherein second branch road includes a control valve.
Compared with prior art, low temperature integrated type refrigerated storage/refrigerating system can effectively reduce the installing space of refrigeration system in this; This system is very beneficial for the installation of field apparatus and debugging maintenance work in the future owing to adopt instant inserted and instant using type to connect; Integrated formula design optimization the layout of pipeline; And whole system has been simplified hardware configuration, has higher performance.
[description of drawings]
Fig. 1 is common middle temperature refrigerating system structural representation.
Fig. 2 is common cryogenic refrigeration systems structural representation.
The structural representation of low temperature integrated type refrigerated storage/refrigerating system in Fig. 3 one embodiment of the invention.
Fig. 4 is the structural representation of the middle deepfreeze/reach in freezer among the present invention.
[specific embodiment]
Understand easily, according to technical scheme of the present invention, under the situation that does not change connotation of the present invention, one of ordinary skill in the art can propose other embodiments of middle deepfreeze of the present invention/freezing integrated system, therefore, the following specific embodiment and accompanying drawing only are to the illustrating of technical scheme of the present invention, and should not be considered as of the present invention all or be considered as restriction or qualification to technical scheme of the present invention.
In one embodiment of the invention, see also Fig. 3, in low temperature integrated type refrigerated storage/refrigerating system mainly include integrated unit 1, cryogenic freezing cabinet 2, middle temperature refrigerator 3 and connecting pipe 4.Wherein, integrated unit 1 is provided with 102,104 and two ports of export 101,103 of two entrance points.Cryogenic freezing cabinet 2 shell places are provided with the entrance point and the port of export.In warm refrigerator 3 shell places be provided with the entrance point and the port of export.
Please continue with reference to Fig. 3, integrated unit 1 comprises shell 11, cryogenic compressor 12, middle temperature compressor 13, condenser 14, reservoir 15, intermediate heat exchanger 16, expansion valve 17, control valve 18 and connecting pipe 4.The shell 11 of integrated unit 1 can also can be gate-type structure or other similar structures for the body structure of a sealing, is used for shelving cryogenic compressor 12, warm compressor 13, condenser 14, reservoir 15, intermediate heat exchanger 16 and connecting pipe 4.On shell 11, be provided with damping pin (not shown), and shell 11 can be designed to vibrationproof, its anti-noise structure, the stability that is used to improve the systematic function of whole integrated unit 1 and increases system.In shell 11 inside, each element reasonably optimizing layout is so that the cabling of connection between each element and connecting pipe 4.
The connection of low temperature integrated type refrigerated storage/refrigerating system as shown in Figure 3 in whole, the port of export 101 of integrated unit 1 links to each other with the entrance point of cryogenic freezing cabinet 2 by connecting pipe 4, and the port of export of cryogenic freezing cabinet 2 links to each other with the entrance point 102 of integrated unit 1 by connecting pipe 4.The port of export 103 of integrated unit 1 links to each other with the entrance point of middle temperature refrigerator 3 by connecting pipe 4, and the port of export of middle temperature refrigerator 3 links to each other with the entrance point 104 of integrated unit 1 by connecting pipe 4.Integrated unit 1 connects with adopting instant inserted and instant using type being connected of middle temperature refrigerator 3, cryogenic freezing cabinet 2 usually, to be convenient to on-the-spot fitting operation.
In integrated system 1, the suction end of cryogenic compressor 12 is connected to entrance point 102 places of integrated unit 1 by connecting pipe 4, in the suction end of warm compressor 13 be connected to entrance point 104 places of integrated unit 1 by connecting pipe 4, thereby in realizing, cryogenic compressor 13,12 respectively with in, being connected of evaporimeter 24 in deepfreeze/reach in freezer 3,2.The exhaust end of the exhaust end of cryogenic compressor 12 and middle temperature compressor 13 converges by connecting pipe 4, and links to each other with the entrance point of condenser 14 by connecting pipe 4.The port of export of condenser 14 links to each other with the entrance point of reservoir 15 by connecting pipe 4.The port of export of reservoir 15 props up and is divided into three flow paths 41,42,43.In flow path 41, the port of export of reservoir 15 directly is connected with the arrival end of middle temperature refrigerator 3 by connecting pipe 4, thus being connected of the expansion valve 23 in the port of export of realization reservoir 15 and the middle temperature refrigerator 3.In flow path 42, the port of export of reservoir 15 links to each other with first arrival end of intermediate heat exchanger 16, and link to each other with the arrival end of cryogenic freezing cabinet by connecting pipe 4 in the storage of the primary outlet end of intermediate heat exchanger 16, thereby the port of export of realizing reservoir 15 pass through behind first branch road of intermediate heat exchanger 16 with cryogenic freezing cabinet 2 in being connected of expansion valve 23.In flow path 43, the port of export of reservoir 15 is connected to the arrival end of expansion valve 17 by connecting pipe 4, and links to each other with second arrival end of intermediate heat exchanger 16 by connecting pipe 4 at the port of export of expansion valve 17.Second port of export of intermediate heat exchanger 16 props up and is divided into two branch roads 431 and 432.Second port of export of intermediate heat exchanger 16 and the port of export of middle temperature refrigerator 3 converge by connecting pipe 4 in first branch road 431, the suction end of warm compressor 13 in being directly connected to.Second port of export of intermediate heat exchanger 16 at first is connected on the control valve 18 by connecting pipe 4 in second branch road 432, and the port of export with cryogenic freezing cabinet 2 converges by connecting pipe 4 again, is connected to the suction end of cryogenic compressor 12.
When system starts working, during therefrom, the low-temp low-pressure gaseous refrigerant that flows out of deepfreeze/reach in freezer 3,2 ports of export flows into respectively in warm compressor 13, the cryogenic compressor 12, and converge after being compressed into the gas of HTHP, flow into together in the condenser 14.In condenser 14, the gaseous refrigerant of HTHP changes the liquid cold-producing medium of HTHP into after outwards emitting heat, and flow in the reservoir 15.In the flow path 41 of reservoir 15 ports of export, expansion valve 23 during the liquid cold-producing medium of HTHP enters by connecting pipe 4 in the warm refrigerator 3, throttling step-down through expansion valve 23, the liquid refrigerant of HTHP becomes low-temp low-pressure liquid, and the coil pipe in the evaporimeter 24 in the warm refrigerator 3 in the process, warm cold air in producing with the air generation heat exchange of coil surface, thereby the liquid refrigerant of low-temp low-pressure is converted into the gaseous refrigerant of low-temp low-pressure, and the closed circuit of warm system during warm compressor 13 forms in flowing back into.In flow path 42, the liquid cold-producing medium of the HTHP of reservoir 15 ports of export intermediate heat exchanger 16 of flowing through.In flow path 43, the liquid cold-producing medium of the HTHP of reservoir 15 ports of export at first is transformed into the liquid refrigerant of low-temp low-pressure at the intermediate heat exchanger 16 of flowing through by the step-down throttling of expansion valve.The cold-producing medium that two kinds of temperature in the flow path 42 and 43 are different carries out heat exchange in intermediate heat exchanger 16.The liquid cold-producing medium of HTHP in the flow path 42 release heat in intermediate heat exchanger 16, make the liquid cold-producing medium of HTHP before entering cryogenic freezing cabinet 2, obtain precooling, thereby effectively regulated the degree of supercooling in the cryogenic refrigeration systems, so that improve the refrigeration and the performance of cryogenic refrigeration systems.Enter expansion valve 23 in the cryogenic freezing cabinet 2 after the cold-producing medium precooling and carry out the step-down throttling and change into the low-temp low-pressure liquid refrigerant and enter coil pipe in the evaporimeter 24, carrying out heat exchange with outside air provides the low temperature cold air.The gaseous refrigerant that absorbs heat flow back into the closed circuit that forms cryogenic refrigeration systems in the cryogenic compressor 12.Low-temp low-pressure liquid refrigerant in the flow path 43 absorbs heat and changes into the low-temp low-pressure gaseous refrigerant in intermediate heat exchanger 16.Flow out cold-producing medium from middle heat exchanger 16 two branch roads 431 and 432 are arranged.In first branch road 431, the low-temp low-pressure gaseous refrigerant directly with middle temperature refrigerator 3 in the low-temp low-pressure gaseous refrigerant that flows out converge flow in the warm compressor 13.In second branch road 432; the low-temp low-pressure gaseous refrigerant is at first by control valve 7; with cryogenic freezing cabinet 2 in the low-temp low-pressure gaseous refrigerant that flows out converge the back and flow in the cryogenic compressor 12; thereby by the suction temperature that control valve 7 is effectively regulated cryogenic compressor, protection cryogenic compressor 12.
Understand easily, of the present invention in low temperature integrated type refrigerated storage/refrigerating system comprise integrated unit 1, middle temperature refrigerator (group) 2, cryogenic freezing cabinet (group) 3 and connecting pipe 4.Shared condenser 14 of cryogenic refrigeration systems and reservoir 15 in integrated unit 1; Expansion valve 17, intermediate heat exchanger 16 and corresponding connecting pipe 4 form the degree of supercooling governor motion of cryogenic refrigeration systems, are used to regulate the degree of supercooling of cryogenic refrigeration systems, improve the overall performance and the stability of cryogenic refrigeration systems; Expansion valve 17, intermediate heat exchanger 16, control valve 18 and corresponding connecting pipe 4 also form the suction temperature governor motion of cryogenic refrigeration systems, are used to reduce the suction temperature of cryogenic refrigeration systems, so that better protection cryogenic compressor 12.
Adopt this in low temperature integrated type refrigerated storage/refrigerating system, can effectively reduce the space that system installs, and integrated unit can directly be placed in outdoor, roof etc. for example.The cost of whole system obviously than in two independences, cryogenic system is low.In the integrated unit optimization of pipeline with and and middle cryogenic freezing cabinet between instant inserted and instant using type the connection side the installation and the regular maintenance of device context.The performance of the whole system especially performance of cryogenic system significantly improves, and has advantages of higher stability.
Though above a kind of specific embodiment of the present invention has been made detailed description, these explanations are not limitation of the scope of the invention.For being familiar with this operator in this area, the conspicuous modifications and variations that above-described embodiment did are the present invention comprise.
Claims (14)
1. low temperature integrated type refrigerated storage/refrigerating system in a kind, be used for providing refrigeration temperature that food etc. is preserved and the freezing low temperature that cold drink etc. is preserved, it includes an integrated unit, warm refrigerator in one (group), (group) cryogenic freezing cabinet and corresponding connecting pipe, it is characterized in that described integrated unit comprises:
A public condenser is used for the condensation of the high temperature and high pressure gaseous refrigerant in warm refrigerating system and the cryogenic refrigeration systems;
A public reservoir is used for the storage of the liquid cold-producing medium of HTHP in warm refrigerating system and the cryogenic refrigeration systems;
A degree of supercooling governor motion is used for regulating the degree of supercooling of cryogenic refrigeration systems; And a suction temperature governor motion, be used to regulate the suction temperature of cryogenic refrigeration systems.
2. as claimed in claim 1 a kind of in low temperature integrated type refrigerated storage/refrigerating system, it is characterized in that warm compressor (group) and cryogenic compressor (group) in also including in the described integrated unit.
3. as claimed in claim 2 a kind of in low temperature integrated type refrigerated storage/refrigerating system, it is characterized in that, described in warm refrigerator and the described cryogenic freezing cabinet product bin that includes evaporimeter, expansion valve respectively and shelve food.
4. as claimed in claim 3 a kind of in low temperature integrated type refrigerated storage/refrigerating system, it is characterized in that, in described the suction end of warm compressor (group), cryogenic compressor (group) respectively with described in the evaporimeter of warm refrigerator, cryogenic freezing cabinet be connected, its exhaust end is connected to the arrival end of described public condenser jointly.
5. as claimed in claim 4 a kind of in low temperature integrated type refrigerated storage/refrigerating system, it is characterized in that the port of export of described public condenser is connected to the arrival end of described reservoir.
6. as claimed in claim 5 a kind of in low temperature integrated type refrigerated storage/refrigerating system, it is characterized in that described expansion valve, described intermediate heat exchanger and corresponding connecting pipe in the described integrated unit constitute described degree of supercooling governor motion.
7. as claimed in claim 6 a kind of in low temperature integrated type refrigerated storage/refrigerating system, it is characterized in that, first arrival end of the intermediate heat exchanger of described degree of supercooling governor motion directly is connected with described reservoir, and second arrival end is connected with described reservoir by described expansion valve.
8. as claimed in claim 7 a kind of in low temperature integrated type refrigerated storage/refrigerating system, it is characterized in that first port of export of described intermediate heat exchanger is to be connected with described cryogenic freezing cabinet arrival end.
9. as claimed in claim 8 a kind of in low temperature integrated type refrigerated storage/refrigerating system, it is characterized in that, described suction temperature governor motion comprise second port of export that connects described intermediate heat exchanger and described in first branch road of suction end of warm compressor, and second branch road of the suction end of second port of export of the described intermediate heat exchanger of connection and described cryogenic compressor, wherein said second branch road includes a control valve.
10. as claimed in claim 1 a kind of in low temperature integrated type refrigerated storage/refrigerating system, it is characterized in that, described integrated unit with described between the warm refrigerator, described cryogenic freezing cabinet the employing instant inserted and instant using type be connected.
11. a refrigeration system is characterized in that it comprises:
Warm cold storage plant at least one, its comprise at least one in warm evaporimeter;
At least one cryogenic freezing device, it comprises at least one cryogenic vaporizer;
One integrated unit, described integrated unit comprises:
Warm compressor at least one, be with described in warm evaporimeter be connected;
At least one cryogenic compressor is to be connected with described cryogenic vaporizer;
Condenser, be with described at least one in the exhaust end of warm compressor and at least one cryogenic compressor join, be used for the high temperature and high pressure gaseous refrigerant that condensation is discharged from described at least one temperature compressor and at least one cryogenic compressor exhaust end;
Reservoir is to be connected with described condenser, is used to store the liquid cold-producing medium of HTHP of discharging from described condenser;
The degree of supercooling governor motion is to be connected with described reservoir and to be connected to described cryogenic vaporizer, is used to regulate the degree of supercooling of the cryogenic freezing circulatory system;
The suction temperature governor motion is to be connected with described reservoir and to be connected to described cryogenic compressor and middle temperature compressor respectively, is used to regulate the suction temperature of the cryogenic freezing circulatory system;
In warm connecting line, be connected in described reservoir and described in warm evaporimeter.
12. refrigeration system as claimed in claim 11, it is characterized in that, described degree of supercooling governor motion comprises the intermediate heat exchanger that is connected to described cryogenic vaporizer, first arrival end of this intermediate heat exchanger directly is connected with described reservoir, and second arrival end is connected with described reservoir by an expansion valve.
13. refrigeration system as claimed in claim 12 is characterized in that, first port of export of described intermediate heat exchanger is to be connected with the cryogenic vaporizer of described cryogenic freezing device.
14. refrigeration system as claimed in claim 13, it is characterized in that, described suction temperature governor motion comprise second port of export that connects described intermediate heat exchanger and described in first branch road of suction end of warm compressor, and second branch road of the suction end of second port of export of the described intermediate heat exchanger of connection and described cryogenic compressor, wherein said second branch road includes a control valve.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710181324XA CN101413738A (en) | 2007-10-17 | 2007-10-17 | Middle and low temperature integrated type refrigerated storage / refrigerating system |
| EP08839645.2A EP2198211A4 (en) | 2007-10-17 | 2008-10-17 | A medium- and low-temperature integrated refrigerating/freezing system |
| PCT/US2008/080297 WO2009052368A1 (en) | 2007-10-17 | 2008-10-17 | A medium- and low-temperature integrated refrigerating/freezing system |
| US12/680,984 US20100212350A1 (en) | 2007-10-17 | 2008-10-17 | Medium- and Low-Temperature Integrated Refrigerating/Freezing System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710181324XA CN101413738A (en) | 2007-10-17 | 2007-10-17 | Middle and low temperature integrated type refrigerated storage / refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101413738A true CN101413738A (en) | 2009-04-22 |
Family
ID=40567792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710181324XA Pending CN101413738A (en) | 2007-10-17 | 2007-10-17 | Middle and low temperature integrated type refrigerated storage / refrigerating system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100212350A1 (en) |
| EP (1) | EP2198211A4 (en) |
| CN (1) | CN101413738A (en) |
| WO (1) | WO2009052368A1 (en) |
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| CN102889641A (en) * | 2012-09-12 | 2013-01-23 | 青岛海信日立空调系统有限公司 | Air conditioner used in high-temperature environment and control method |
| CN104497800A (en) * | 2014-12-17 | 2015-04-08 | 常熟市恒仕达电器有限公司 | Refrigerated display cabinet |
| CN104534737A (en) * | 2014-12-16 | 2015-04-22 | 烟台万德嘉空调设备有限公司 | Broad-width type air source heat pump device |
| CN105928398A (en) * | 2016-06-01 | 2016-09-07 | 唐玉敏 | Multistage parallel displacement module of heat exchange system |
| CN105928397A (en) * | 2016-06-01 | 2016-09-07 | 唐玉敏 | Multi-stage series-parallel displacement heat exchange system |
| CN106640241A (en) * | 2016-11-16 | 2017-05-10 | 深圳市燃气集团股份有限公司 | Natural gas pipe network pressure energy power generation and refrigeration house method and device |
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- 2008-10-17 EP EP08839645.2A patent/EP2198211A4/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889641A (en) * | 2012-09-12 | 2013-01-23 | 青岛海信日立空调系统有限公司 | Air conditioner used in high-temperature environment and control method |
| CN104534737A (en) * | 2014-12-16 | 2015-04-22 | 烟台万德嘉空调设备有限公司 | Broad-width type air source heat pump device |
| CN104497800A (en) * | 2014-12-17 | 2015-04-08 | 常熟市恒仕达电器有限公司 | Refrigerated display cabinet |
| CN105928398A (en) * | 2016-06-01 | 2016-09-07 | 唐玉敏 | Multistage parallel displacement module of heat exchange system |
| CN105928397A (en) * | 2016-06-01 | 2016-09-07 | 唐玉敏 | Multi-stage series-parallel displacement heat exchange system |
| CN106640241A (en) * | 2016-11-16 | 2017-05-10 | 深圳市燃气集团股份有限公司 | Natural gas pipe network pressure energy power generation and refrigeration house method and device |
| CN110145918A (en) * | 2018-02-13 | 2019-08-20 | 中国中元国际工程有限公司 | A kind of cooling supply distributor and its application |
| CN110145899A (en) * | 2018-02-13 | 2019-08-20 | 中国中元国际工程有限公司 | Return the refrigerating method for returning liquid distribution method and multi-temperature zone refrigeration storage system of liquid distributor |
| CN110145899B (en) * | 2018-02-13 | 2021-03-30 | 中国中元国际工程有限公司 | Liquid return distribution method of liquid return distributor and refrigeration method of multi-temperature-zone refrigeration house system |
| CN110145918B (en) * | 2018-02-13 | 2021-03-30 | 中国中元国际工程有限公司 | Cold supply distributor and application thereof |
| CN111043797A (en) * | 2018-10-11 | 2020-04-21 | 青岛海尔股份有限公司 | Method and device for regulating a flow valve |
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| WO2020108005A1 (en) * | 2018-11-30 | 2020-06-04 | 青岛海尔空调电子有限公司 | Compressor and air conditioning system |
| CN110425769A (en) * | 2019-07-25 | 2019-11-08 | 上海澳钶节能设备有限公司 | CO can be reduced2Transcritical cooling system air cooler outlet temperature system and method |
| CN113357842A (en) * | 2021-05-28 | 2021-09-07 | 西安交通大学 | CO (carbon monoxide)2Transcritical parallel compression refrigeration system and control method |
| CN113503653A (en) * | 2021-08-04 | 2021-10-15 | 珠海格力电器股份有限公司 | Multi-compressor refrigeration system and air conditioner |
| CN114992895A (en) * | 2022-06-21 | 2022-09-02 | 珠海万纬物流发展有限公司 | One-stage throttling intermediate complete cooling two-stage compression low-temperature refrigeration system |
| CN115060018A (en) * | 2022-06-21 | 2022-09-16 | 珠海万纬物流发展有限公司 | Two-stage throttling intermediate complete cooling two-stage compression carbon dioxide cold carrying system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009052368A1 (en) | 2009-04-23 |
| EP2198211A1 (en) | 2010-06-23 |
| EP2198211A4 (en) | 2016-01-13 |
| US20100212350A1 (en) | 2010-08-26 |
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