CN106568277A - Multi-temperature-area double-refrigeration equipment - Google Patents

Multi-temperature-area double-refrigeration equipment Download PDF

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Publication number
CN106568277A
CN106568277A CN201610955678.4A CN201610955678A CN106568277A CN 106568277 A CN106568277 A CN 106568277A CN 201610955678 A CN201610955678 A CN 201610955678A CN 106568277 A CN106568277 A CN 106568277A
Authority
CN
China
Prior art keywords
heat exchanger
vaporizer
condenser
heat
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610955678.4A
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Chinese (zh)
Inventor
蒋彬
李大伟
耿世德
卞伟
宋建林
任开龙
丁剑波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Special Refrigerator Co Ltd
Original Assignee
Qingdao Haier Special Refrigerator Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Special Refrigerator Co Ltd filed Critical Qingdao Haier Special Refrigerator Co Ltd
Priority to CN201610955678.4A priority Critical patent/CN106568277A/en
Publication of CN106568277A publication Critical patent/CN106568277A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00Subcoolers, desuperheaters or superheaters
    • F25B40/06Superheaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/37Capillary tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

Abstract

The invention provides multi-temperature-area double-refrigeration equipment. The equipment comprises double refrigeration systems, a fan, an outdoor unit shell and multiple independent indoor storage cabinets; a first condenser in the double refrigeration systems is connected with a first gas-liquid separator; the first gas-liquid separator is connected with a first heat exchanger; the first heat exchanger is connected with a second evaporator; the first gas-liquid separator is connected with a first evaporator; the first evaporator is connected with the first heat exchanger; the second evaporator and the first heat exchanger are respectively connected with a first compressor through a third heat exchanger; a third capillary pipe and a first heat return pipe for exchanging heat with each other are arranged in a first heat regenerator; a fourth capillary pipe and a second heat return pipe for exchanging heat with each other are arranged in a second heat regenerator; a heat exchange channel 2 of the second heat exchanger is connected with an inlet of the second compressor through the first heat return pipe; and an outlet of a fourth evaporator is connected with an inlet of the second compressor through the second heat return pipe. The equipment realizes improvement of the energy utilization rate and the refrigeration performance, and widens the refrigeration temperature section to improve the generality.

Description

The double refrigeration plants of multi-temperature zone
Technical field
The present invention relates to refrigeration plant, more particularly to a kind of double refrigeration plants of multi-temperature zone.
Background technology
At present, refrigeration plant(Refrigerator, refrigerator etc.)It is widely used in daily life.With the life of people Running water is flat to be improved constantly, people to food and refrigeration plant the aspect such as environmental protection, energy-conservation, fresh-keeping requirement more and more higher, it is single The refrigerating appliances such as the refrigerator of storage warm area and two storage warm areas can not slowly meet the storage requirements of people's different food products, and drinks is needed It is stored at 5 ~ 20 DEG C of warm area, fruit and vegetable will be stored at 0 ~ 8 DEG C of warm area, the product needed storage such as common meat, Fish - 18 DEG C are ensconced, and some Special foods need ultralow temperature storage, such as tuna to need the environment for being stored at -55 DEG C or so In, just can guarantee that the deliciousness of its meat.In prior art, the refrigeration plant with multi-temperature zone refrigerating function, generally using cold Distribution coordinates corresponding automatically controlled control strategy, to realize that multi-temperature zone is freezed, and in actual use, of the prior art many On the one hand warm area refrigeration plant widens that heat transfer temperature energy utilization rate is low, and another aspect control system is loaded down with trivial details, uses in user Easily occurs the problem that certain temperature refrigeration difference is not even freezed in journey;Importantly, can not realize between different warm areas big The refrigeration of the temperature difference, cryogenic temperature are interval less.How a kind of energy utilization rate height, cryogenic temperature interval big, highly versatile are designed Multi-temperature zone refrigeration plant be the technical problem to be solved.
The content of the invention
The technical problem to be solved is:There is provided a kind of multi-temperature zone double refrigeration plants, realize improving multi-temperature zone pair Refrigeration plant energy utilization rate height and refrigeration performance, expand cryogenic temperature interval to improve versatility.
The technical scheme that the present invention is provided is, the double refrigeration plant of a kind of multi-temperature zone, it is characterised in that including double refrigeration systems System, blower fan, outdoor machine shell and multiple independent indoor lockers;Described pair of refrigeration system includes the first compressor, the second compression Machine, the first vaporizer, the second vaporizer, the 3rd vaporizer, the 4th vaporizer, the first gas-liquid separator, the second gas-liquid separator, First Heat Exchanger, the second heat exchanger, the 3rd heat exchanger, the first condenser, the second condenser, the first regenerator and the second backheat Device;First compressor, second compressor, first condenser, second condenser and the blower fan are arranged In the outdoor machine shell, first vaporizer, the second vaporizer, the 3rd vaporizer, the 4th vaporizer are arranged on corresponding In the indoor locker;The import of first vaporizer is connected with the first capillary tube, and the import of second vaporizer connects The second capillary tube is connected to, the outlet of first condenser is connected with the import of first gas-liquid separator;First gas The heat exchanger channels one of the gas outlet of liquid/gas separator and the First Heat Exchanger connect, and the heat exchanger channels one of the First Heat Exchanger lead to Cross second capillary tube to be connected with second vaporizer, the liquid outlet of first gas-liquid separator passes through described first mao Tubule is connected with first vaporizer, and the outlet of first vaporizer is connected with the heat exchanger channels two of the First Heat Exchanger Connect, the outlet of second vaporizer and the heat exchanger channels two of the First Heat Exchanger pass through changing for the 3rd heat exchanger respectively The passage of heat two is connected with the import of first compressor;The 3rd capillary of mutual heat exchange is provided with first regenerator Pipe and the first product heat cal rod, are provided with the 4th capillary tube and the second product heat cal rod of mutual heat exchange in second regenerator, The import exported by the heat exchanger channels one of the 3rd heat exchanger with second gas-liquid separator of second condenser Connection;The heat exchanger channels one of the gas outlet of second gas-liquid separator and second heat exchanger connect, second heat exchange The heat exchanger channels one of device are connected with the 4th vaporizer by the 4th capillary tube, and second gas-liquid separator goes out liquid Mouth is connected with the 3rd vaporizer by the three capillary, outlet and second heat exchanger of the 3rd vaporizer Heat exchanger channels two connect, the heat exchanger channels two of second heat exchanger pass through first product heat cal rod and second compressor Import connection, the outlet of the 4th vaporizer is connected with the import of second compressor by second product heat cal rod.
The double refrigeration plants of multi-temperature zone that the present invention is provided, using the refrigeration system of two independent loops, for each refrigeration System is delivered to the cold-producing medium of gaseous state in gas-liquid separator and liquid in different vaporizers respectively, and gaseous refrigerant will be passed through Heat exchanger carries out the refrigeration of profound hypothermia in being transported to profound hypothermia vaporizer, and liquid refrigerant is entered after capillary-compensated The refrigeration of low hypothermia is carried out in low hypothermia vaporizer, and in order to effectively widen temperature range, it is defeated from low hypothermia vaporizer The cold-producing medium for going out carries out heat exchange with the cold-producing medium entered in low hypothermia vaporizer by heat exchange, so that low hypothermia evaporation The cryogenic temperature of device is lower, realizes the effect of multi-temperature zone refrigeration, and need not adopt complicated control program, and heat exchanger energy Efficiency is effectively improved enough, reducing energy consumption is realized improving air cooling refrigeration equipment energy utilization rate height and refrigeration performance, expands system Cold temperature range is improving versatility;And exchanged heat by the 3rd heat exchanger between two independent refrigeration systems, Neng Gougeng The temperature difference between each vaporizer is further widened, lower temperature on the one hand can be obtained, on the other hand can be more effective Raising use versatility.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are these Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structure principle chart of the double refrigeration plant embodiments of multi-temperature zone of the present invention
Fig. 2 is the schematic diagram of the double refrigeration plant embodiments of multi-temperature zone of the present invention.
Fig. 3 is the structural representation of condenser of the present invention.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in Figure 1-Figure 3, the double refrigeration plants of the present embodiment multi-temperature zone, using split-type structural, including outdoor machine shell 101 With multiple independent indoor lockers 102, outdoor machine shell 101 is placed on the outside of wall 100, and indoor locker 102 is placed In the inner side of wall 100, wherein, the compressor, condenser, throttling arrangement and blower fan in double refrigeration systems(It is not shown)In portion Part is disposed in the outdoor in casing 101, and the vaporizer of double refrigeration systems is arranged in corresponding indoor locker 102.In reality During use, as compressor is arranged in the outdoor machine shell 101 of outside, the noise and heat that compressor operating is produced will not Impact is produced on indoor, the comfortableness that user uses indoors can be effectively improved, user experience is improved.Meanwhile, by In using multiple independent indoor lockers 102, indoor locker 102 is made in being placed as required on different rooms With to meet the demand of not chummery freezing or chilled goods.Wherein, circulated air is additionally provided with the indoor locker 102 Fan(It is not shown), the air circulation flow in indoor locker 102 can be realized using circulating fan, to improve indoor locker Temperature distribution evenness in 102.In addition, according to user's needs, the indoor locker 102 can be horizontal counter body or vertical Formula cabinet or wall-mounted cabinet.
Wherein, the double refrigeration systems in the present embodiment include the refrigeration system of two sets of independent loops:Refrigeration system one and system Cooling system two, carries out heat exchange by the 3rd heat exchanger 63 between two refrigeration systems, specific as follows:
Refrigeration system one includes the first compressor 11 for linking together and the first condenser 21, also including the first vaporizer 41, Second vaporizer 42, the first gas-liquid separator 31 and First Heat Exchanger 61;The outlet of first condenser 21 and described first The import connection of gas-liquid separator 31;The gas outlet of first gas-liquid separator 31 and the heat exchange of the First Heat Exchanger 61 are logical Road one connects, and the heat exchanger channels one of First Heat Exchanger are connected with the import of second vaporizer 42 by the second capillary tube 421; Import of the liquid outlet of first gas-liquid separator 31 by first capillary tube 411 with first vaporizer 41 connects Connect, the outlet of first vaporizer 41 is connected with the heat exchanger channels two of the First Heat Exchanger 61, second vaporizer 42 Outlet and First Heat Exchanger 61 heat exchanger channels two by the heat exchanger channels one of the 3rd heat exchanger 63 and the described first pressure The import connection of contracting machine 11.
Refrigeration system two includes the second compressor 12 for linking together and the second condenser 22, also including the 3rd vaporizer 43rd, the 4th vaporizer 44, the second gas-liquid separator 32, the second heat exchanger 62, the first regenerator 51 and the second regenerator 52;It is described Import of the outlet of the second condenser 22 by the heat exchanger channels two of the 3rd heat exchanger 63 with second gas-liquid separator 32 connects Connect, the heat exchanger channels one of the gas outlet of second gas-liquid separator 32 and second heat exchanger 62 connect, the second heat exchanger 62 heat exchanger channels one are connected with the import of the 4th vaporizer 44 by the 4th capillary tube 441;Second gas-liquid separation The liquid outlet of device 32 is connected with the import of the 3rd vaporizer 43 by the three capillary 431, the 3rd vaporizer 43 outlet is connected with the heat exchanger channels two of second heat exchanger 62, and the heat exchanger channels two of the second heat exchanger 62 pass through first time First product heat cal rod of hot device 51 is connected with the import of second compressor 12, and the outlet of the 4th vaporizer 44 is by described Second product heat cal rod of the second regenerator 52 is connected with the import of second compressor 12.
Specifically, the double refrigeration systems of the present embodiment multi-temperature zone adopt the refrigeration system of two heat exchanges and independent loops, By taking refrigeration system one as an example:Cold-producing medium forms the superheated refrigerant gas of high temperature, high pressure, refrigeration through the compression of the first compressor 11 Agent gas is condensed into the first condenser 21, and the dew point temperature using high low boiling point refrigerant in cold-producing medium is different, refrigeration Formed rich in high boiling point refrigerant liquid and the two phase refrigerant rich in low boiling point refrigerant gas, the refrigeration after the condensation of agent gas Agent is separated into the first gas-liquid separator 31.Liquid phase refrigerant rich in high boiling point cold-producing medium is from the first gas-liquid separator 31 Liquid outlet output, via the first capillary tube 411 throttle after, enter into after the first vaporizer 41 is exchanged heat and form biphase refrigeration Agent is entered in the heat exchanger channels two of First Heat Exchanger 61, and vapor phase refrigerant is introduced into First Heat Exchanger 61 and absorbs the first vaporizer Liquid phase refrigerant is formed after the cold of the cold-producing mediums of 41 outputs, liquid phase refrigerant enters the after the throttling of the second capillary tube 421 Two vaporizers 42 exchange heat;The cold-producing medium exported from the heat exchanger channels two and the second vaporizer 42 of First Heat Exchanger 61 is transported to the 3rd Carry out being formed after heat exchange with the cold-producing medium of the output of the second condenser 22 in refrigeration system two in the heat exchanger channels one of heat exchanger 62 Gas refrigerant is flowed back in the first compressor 11.And for refrigeration system two, the refrigeration as more low temperature will be realized, and increased First regenerator 51 and the second regenerator 52, specifically, cold-producing medium is entered into after the 3rd vaporizer 43 is exchanged heat and forms biphase Cold-producing medium enters and saturation refrigerant gas is further exchanged heat in the second heat exchanger 62, and subsequent refrigerant gas enter the first backheat The first product heat cal rod in device 51, the first product heat cal rod are exchanged heat with three capillary 431, also, refrigerant gas are from first time Heat pipe is transmitted back to the second compressor 12;Meanwhile, the 4th vaporizer 44 forms the cryogen of gas and is flowed into the second backheat after exchanging heat In second product heat cal rod of device 52, after the second product heat cal rod and the 4th capillary tube 441 are exchanged heat, can more added with reduction the 4th steam The temperature that device 44 can freeze is sent out, the refrigeration of more low temperature is obtained, and is more effectively utilized energy consumption, improve efficiency, system In cooling system two, two vaporizers are configured with corresponding regenerator, and regenerator can recycle the cold of cold-producing medium in return-air and improve The energy utilization rate of system, also without complicated control program, it is ensured that the performance of product is also ensure that while product cost.
In actual use, the first vaporizer 41 in refrigeration system one is used for cold preservation or the freezing of routine, and right Cryogenic refrigeration can also be realized in addition to it can be used in conventional freezing in the second vaporizer 42, the different cold-producing mediums of cooperation can Realize the refrigeration of large span temperature range;Likewise, the 3rd vaporizer 43 in refrigeration system two is also used for cold preservation or routine Freezing, and the 4th vaporizer 44 can realize cryogenic refrigeration in addition to it can be used in conventional freezing;Refrigeration system two compared to Refrigeration system one, the cryogenic temperature of 43 to the first vaporizer 41 of the 3rd vaporizer are lower, meanwhile, four vaporizer 44 to the second steams The cryogenic temperature for sending out device 42 is lower.The double refrigeration systems of the present embodiment multi-temperature zone adopt mix refrigerant, the mix refrigerant bag Various cold-producing mediums are included, for example:Mixture of the mix refrigerant for R600a and R290;Or, the mix refrigerant is The mixture of R600 and R290;Or, mixture of the mix refrigerant for R600a and R600;Or, the hybrid refrigeration Mixture of the agent for R600a and R170;Or, mixture of the mix refrigerant for R290 and R170;Or, the mixing Mixture of the cold-producing medium for R600a, R290 and R170.Different storage temperature can be formed by different non-public boiling mix refrigerants Area, working medium is to R600a/R290:It is capable of achieving -18 ~ -30 DEG C of storage warm areas and -30 ~ -40 DEG C of storage warm areas;Working medium is to R600/ R290:It is capable of achieving -6 ~ -18 DEG C of storage warm areas and -30 ~ -40 DEG C of storage warm areas;Working medium is to R600/R600a:It is capable of achieving 0 ~ 9 DEG C of storage Hide warm area and -6 ~ -12 DEG C of storage warm areas;Working medium is to R600a/R170:It is capable of achieving -18 ~ -30 DEG C of storage warm areas and -40 ~ -60 DEG C Storage warm area;Working medium is to R290/R170:It is capable of achieving -20 ~ -40 DEG C of storage warm areas and -40 ~ -60 DEG C of storage warm areas etc..
Wherein, the setting according to varying number warm area, the first vaporizer 41, the second vaporizer 42,43 and of the 3rd vaporizer 4th vaporizer 44 can be constituted using many sub- vaporizers, and can be with by the way of serial or parallel connection between sub- vaporizer It is applied in combination.
Further, carry out between refrigeration system one and refrigeration system two heat exchange to more effectively improve, to obtain The refrigeration of more wide temperature range, the first condenser 21 in the present embodiment are provided with the first auxiliary refrigerating agent pipe(Do not mark Note), second condenser 22 is provided with the second auxiliary refrigerating agent pipe(It is unmarked), the first auxiliary refrigerating agent pipe and described The mutual heat exchange of second auxiliary refrigerating agent pipe arranges to form public condensation part 23, and first condenser 21 is attached by described first Refrigerant feeding pipe is connected with first compressor 11, and second condenser 22 is by the second auxiliary refrigerating agent pipe and institute State one connection of heat exchanger channels of the 3rd heat exchanger 63.Specifically, it is in the presence of public condensation part 23, defeated from the first compressor 11 The high temperature that goes out, the superheated refrigerant gas of high pressure by with condense from the second condenser 22 after the cold-producing medium that exports carry out heat exchange, So that the condensation effect in refrigeration system two is more preferably, meanwhile, coordinate the 3rd heat exchanger 63 to carry out the heat friendship between two systems Change process, it is possible to obtain lower cryogenic temperature.Wherein, first condenser 21, second condenser 22 and the public affairs It is an overall structure with condensation part 23, specifically, in condenser assembling process, refrigerant pipe needs tube expansion to be formed in fin On, and the equal tube expansion of refrigerant pipe in the first condenser 21, second condenser 22 and the public condensation part 23 is arranged on In same fins set, it is preferred that first condenser 21, the public condensation part 22 and second condenser 23 are by up to Under be sequentially arranged.
Finally it should be noted that:Above example only to illustrate technical scheme, rather than a limitation;Although With reference to the foregoing embodiments the present invention has been described in detail, it will be understood by those within the art that:Which still may be used To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic; And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and Scope.

Claims (10)

1. the double refrigeration plant of a kind of multi-temperature zone, it is characterised in that including double refrigeration systems, blower fan, outdoor machine shell and multiple independences Indoor locker;The described pair of refrigeration system include the first compressor, the second compressor, the first vaporizer, the second vaporizer, Three vaporizers, the 4th vaporizer, the first gas-liquid separator, the second gas-liquid separator, First Heat Exchanger, the second heat exchanger, the 3rd Heat exchanger, the first condenser, the second condenser, the first regenerator and the second regenerator;First compressor, second pressure Contracting machine, first condenser, second condenser and the blower fan are arranged in the outdoor machine shell, first evaporation Device, the second vaporizer, the 3rd vaporizer, the 4th vaporizer are arranged in the corresponding indoor locker;First evaporation The import of device is connected with the first capillary tube, and the import of second vaporizer is connected with the second capillary tube, first condenser Outlet be connected with the import of first gas-liquid separator;The gas outlet of first gas-liquid separator and first heat exchange The heat exchanger channels one of device connect, and the heat exchanger channels one of the First Heat Exchanger are by second capillary tube and the described second evaporation Device connects, and the liquid outlet of first gas-liquid separator is connected with first vaporizer by first capillary tube, described The outlet of the first vaporizer is connected with the heat exchanger channels two of the First Heat Exchanger, the outlet of second vaporizer and described The heat exchanger channels two of one heat exchanger are respectively by the import of the heat exchanger channels two of the 3rd heat exchanger and first compressor Connection;The three capillary and the first product heat cal rod of mutual heat exchange, second regenerator are provided with first regenerator In be provided with the 4th capillary tube and the second product heat cal rod of mutual heat exchange, the outlet of second condenser is by described the The heat exchanger channels one of three heat exchangers are connected with the import of second gas-liquid separator;The gas outlet of second gas-liquid separator Connect with the heat exchanger channels one of second heat exchanger, the heat exchanger channels one of second heat exchanger pass through the 4th capillary tube It is connected with the 4th vaporizer, the liquid outlet of second gas-liquid separator is steamed with the described 3rd by the three capillary Device connection is sent out, the outlet of the 3rd vaporizer is connected with the heat exchanger channels two of second heat exchanger, second heat exchanger Heat exchanger channels two be connected with the import of second compressor by first product heat cal rod, the 4th vaporizer goes out Mouth is connected with the import of second compressor by second product heat cal rod.
2. the double refrigeration plant of multi-temperature zone according to claim 1, it is characterised in that first condenser is provided with first Additional refrigerant pipe, second condenser are provided with the second additional refrigerant pipe, the first additional refrigerant pipe and described second attached Plus the mutual heat exchange of refrigerant pipe arranges to form public condensation part, first condenser passes through the described first additional refrigerant pipe and institute The connection of the first compressor is stated, heat exchange of second condenser by the described second additional refrigerant pipe with the 3rd heat exchanger is led to Road one connects.
3. the double refrigeration plant of multi-temperature zone according to claim 2, it is characterised in that first condenser, described second Condenser and the public condensation part are an overall structure.
4. the double refrigeration plant of multi-temperature zone according to claim 3, it is characterised in that first condenser, described second The equal tube expansion of refrigerant pipe in condenser and the public condensation part is arranged in same fins set.
5. the double refrigeration plant of multi-temperature zone according to claim 3, it is characterised in that first condenser, described public Condensation part and second condenser are from top to bottom sequentially arranged.
6. the double refrigeration plant of multi-temperature zone according to claim 1, it is characterised in that first vaporizer, the second evaporation Device, the 3rd vaporizer, and/or the 4th vaporizer include multiple sub- vaporizers for arranging in parallel or series.
7. separating refrigerating device according to claim 1, it is characterised in that be additionally provided with the indoor locker and follow Ring fan.
8. separating refrigerating device according to claim 1, it is characterised in that the indoor locker be horizontal cabinet, Or vertical cabinet or wall-mounted cabinet.
9. the double refrigeration plant of multi-temperature zone according to claim 1, it is characterised in that described pair of refrigeration system is using mixing system Cryogen, the mix refrigerant include various cold-producing mediums.
10. the double refrigeration plant of multi-temperature zone according to claim 9, it is characterised in that the mix refrigerant be R600a and The mixture of R290;Or, mixture of the mix refrigerant for R600 and R290;Or, the mix refrigerant is The mixture of R600a and R600;Or, mixture of the mix refrigerant for R600a and R170;Or, the mixing system Mixture of the cryogen for R290 and R170;Or, mixture of the mix refrigerant for R600a, R290 and R170.
CN201610955678.4A 2016-10-27 2016-10-27 Multi-temperature-area double-refrigeration equipment Pending CN106568277A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201610955678.4A CN106568277A (en) 2016-10-27 2016-10-27 Multi-temperature-area double-refrigeration equipment

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Publication Number Publication Date
CN106568277A true CN106568277A (en) 2017-04-19

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Application Number Title Priority Date Filing Date
CN201610955678.4A Pending CN106568277A (en) 2016-10-27 2016-10-27 Multi-temperature-area double-refrigeration equipment

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Publication number Priority date Publication date Assignee Title
CN1121168A (en) * 1994-10-15 1996-04-24 西安建筑科技大学 Energy-saving double-temp. refrigerant method and system
JPH10103800A (en) * 1996-09-27 1998-04-21 Sanyo Electric Co Ltd Composite type refrigerating plant
CN1789367A (en) * 2005-12-09 2006-06-21 西安交通大学 Multi-element mixed working substance adapted to double temperature preparation of single-unit vapor compression type refrigerator
JP2012220111A (en) * 2011-04-08 2012-11-12 Mitsubishi Electric Corp Binary refrigerating device
CN105466063A (en) * 2015-12-16 2016-04-06 珠海格力电器股份有限公司 Heat pump system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1121168A (en) * 1994-10-15 1996-04-24 西安建筑科技大学 Energy-saving double-temp. refrigerant method and system
JPH10103800A (en) * 1996-09-27 1998-04-21 Sanyo Electric Co Ltd Composite type refrigerating plant
CN1789367A (en) * 2005-12-09 2006-06-21 西安交通大学 Multi-element mixed working substance adapted to double temperature preparation of single-unit vapor compression type refrigerator
JP2012220111A (en) * 2011-04-08 2012-11-12 Mitsubishi Electric Corp Binary refrigerating device
CN105466063A (en) * 2015-12-16 2016-04-06 珠海格力电器股份有限公司 Heat pump system

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Title
张新德等: "《变频/定频电冰箱金牌维修实训》", 31 March 2014, 机械工业出版社 *

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Application publication date: 20170419