CN205351842U - Cooling cycle system and refrigeration plant - Google Patents
Cooling cycle system and refrigeration plant Download PDFInfo
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- CN205351842U CN205351842U CN201620018856.6U CN201620018856U CN205351842U CN 205351842 U CN205351842 U CN 205351842U CN 201620018856 U CN201620018856 U CN 201620018856U CN 205351842 U CN205351842 U CN 205351842U
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Abstract
The utility model provides a cooling cycle system, including connecting gradually compressor, condenser, the vapour and liquid separator on carrying the refrigerant piping who mixes the refrigerant to and first refrigeration branch road and second refrigeration branch road, first refrigeration branch road is connected between the entry of vapour and liquid separator's gaseous phase refrigerant outlet and compressor, and first refrigeration is propped up and has been connected gradually evaporation -condensation ware, first expansion valve, first evaporimeter on the road, second refrigeration branch road is connected between the entry of vapour and liquid separator's liquid phase refrigerant outlet and compressor, and second refrigeration branch road props up and still is connected with second expansion valve and second evaporimeter on the road with evaporation -condensation ware intercommunication, second refrigerant. The utility model also provides a refrigeration plant has this cooling cycle system. The utility model discloses a cooling cycle system obtains temperature the 2nd higher cryogenic temperature through increase expansion valve and evaporimeter on the way is propped up to the second refrigeration in proper order, thereby makes the utility model provides a cooling cycle system has a plurality of cryogenic temperature.
Description
Technical field
This utility model relates to refrigeration and cryogenic technology field, more specifically, relates to a kind of cooling cycle system and has its refrigeration plant.
Background technology
Self-cascade refrigeration system is actually the multistage fractional condensation circulation of two or more mix refrigerants, it can obtain wider refrigeration temperature area, not only may be used for general cold field but also may be used for deep cooling field, apply very extensive, but the irreversible loss that auto-cascading refrigeration system throttling too much makes system can be big, efficiency reduces, and can only obtain a cryogenic temperature in systems, greatly limit its range of application.Along with living standard improves, the demand of the many temperature of machine gets more and more.Therefore, it is thus achieved that many temperature environment of stable high energy efficiency again seem particularly significant.
It is therefore proposed that a kind of cooling cycle system that can obtain more than one multiple cryogenic temperature just seems very necessary.
Utility model content
This utility model is intended at least solve one of technical problem of existence in prior art.
For this, the purpose of this utility model is in that, it is provided that a kind of cooling cycle system.
Another purpose of the present utility model is in that, it is provided that a kind of refrigeration plant, has above cooling cycle system.
For achieving the above object, cooling cycle system of the present utility model includes being connected to conveying in turn and mixes the compressor on the refrigerant pipeline of coolant, condenser, gas-liquid separator, also include: the first refrigeration branch, described first refrigeration branch is connected between gas phase refrigerant outlet and the entrance of described compressor of described gas-liquid separator, and described first refrigeration branch is connected with in turn evaporative condenser, the first expansion valve, the first vaporizer；Second refrigeration branch, described second refrigeration branch is connected between the liquid phase refrigerant exit of described gas-liquid separator and the entrance of described compressor, described second refrigeration branch connects with described evaporative condenser, and described second refrigeration branch is also associated with the second expansion valve and the second vaporizer.
Cooling cycle system according to embodiment of the present utility model, owing to the boiling point of two or more coolant in mixing coolant is different, mixing coolant can be separated into the different gas phase refrigerant of refrigerant category and liquid phase coolant in gas-liquid separator, by connecting the first refrigeration branch and the second refrigeration branch respectively at the liquid-phase outlet of gas-liquid separator and gaseous phase outlet, gas phase refrigerant in first refrigeration branch is lowered the temperature by evaporative condenser and liquefies by the Partial Liquid Phase coolant in the second refrigeration branch, the coolant after being liquefied in the first refrigeration branch is made can again to undergo phase transition absorbing and cooling temperature in the first vaporizer, form first cryogenic temperature；Second refrigeration branch is mainly liquid phase coolant, liquid phase coolant in second refrigeration branch carries out absorbing and cooling temperature after the second expansion valve and the second vaporizer, form second cryogenic temperature, two refrigeration branch may be used for the refrigeration of different aspect, reclaim the irreversible heat transfer loss in system, improve the efficiency of refrigeration plant, make cooling cycle system of the present utility model can obtain two different cryogenic temperatures, achieve the many temperature functions of machine of refrigeration plant, add the scope of application of product, improve performance and the quality of product.
It addition, the cooling cycle system according to the offer of this utility model above-described embodiment also has following additional technical feature:
In technique scheme, preferably, described evaporative condenser has condensation channel and evaporation channel, described evaporative condenser is connected between the gaseous phase outlet of described gas-liquid separator and described first expansion valve by described condensation channel, and the two ends of the evaporation channel of described evaporative condenser connect with the entrance of the liquid-phase outlet of described gas-liquid separator and described compressor respectively.
Cooling cycle system according to embodiment of the present utility model, part refrigerant evaporation heat absorption in the evaporation channel of evaporative condenser, a large amount of gas phase refrigerants in condensation channel are carried out cooling liquefaction, make that condensation channel has liquefaction coolant, liquefaction coolant in condensation channel just can again undergo phase transition absorbing and cooling temperature in the first vaporizer, forms first cryogenic temperature.
In any of the above-described technical scheme, it is preferred that described second expansion valve and described second vaporizer are connected in turn on the refrigerant pipeline between the liquid-phase outlet of described gas-liquid separator and the evaporation channel of described evaporative condenser.
Cooling cycle system according to embodiment of the present utility model, in the second refrigeration branch, the second expansion valve, the second vaporizer and evaporative condenser it is connected with in turn between liquid-phase outlet and the entrance of compressor of gas-liquid separator, the gas-liquid mixed coolant flowing out the second vaporizer flows into evaporation endothermic in evaporative condenser, gas phase refrigerant in first refrigeration branch is carried out cooling liquefaction, make the first refrigeration branch can obtain lower than the cryogenic temperature under the evaporating temperature of the coolant in the second refrigeration branch and a small amount of refrigerating capacity, make cooling cycle system can obtain two cryogenic temperatures.
In any of the above-described technical scheme, it is preferred that being also associated with ejector on the refrigerant pipeline of described first refrigeration branch and the second refrigeration branch, the jet of described ejector connects with the entrance of described compressor.
Cooling cycle system according to embodiment of the present utility model, the refrigerant pipeline of the first refrigeration branch and the second refrigeration branch is connected to ejector, the jet of ejector connects with the entrance of compressor, coolant after heat exchange in first refrigeration branch and the second refrigeration branch is sprayed in the pipeline of arrival end of compressor by ejector, improve the flow velocity of coolant in refrigerant pipeline, reduce heat transfer temperature difference and the irreversible loss of blood circulation, the pressure making the coolant of the entrance of compressor raises, reduce the compression ratio of compressor, decrease the acting of compressor, improve the operational efficiency of system.
In any of the above-described technical scheme, preferably, described first refrigeration branch and described second refrigeration branch are connected with a described ejector simultaneously, described ejector has entrance and draining hole, the entrance of described ejector connects with the evaporation channel of described evaporative condenser, the outlet of the draining hole of described ejector and described first vaporizer, the pressure of the jet of described ejector is more than the pressure of the outlet of described second vaporizer.
Cooling cycle system according to embodiment of the present utility model, the entrance of ejector is connected in the second refrigeration branch, connect with the evaporation channel of evaporative condenser, the draining hole of ejector is connected in the first refrigeration branch, outlet with the first vaporizer, the pressure of the jet of ejector should be greater than the pressure of the outlet of the first vaporizer, the pressure of the expulsion pressure of ejector and the outlet of the first vaporizer produces pressure differential, the draining hole of this pressure official post ejector sucks the coolant in the first refrigeration branch, and all spray from jet, reduce the quantity of required ejector, save production cost.
In any of the above-described technical scheme, preferably, also include: economizer, described economizer has the first refrigerant passage and the second refrigerant passage, described economizer is connected on the refrigerant pipeline between the entrance of described gas-liquid separator and the outlet of described condenser by described first refrigerant passage, and described first refrigeration branch is connected with the entrance of described compressor by described second refrigerant passage on described economizer with described second refrigeration branch.
Cooling cycle system according to embodiment of the present utility model, economizer is connected between the entrance of gas-liquid separator and the outlet of condenser by the first refrigerant passage, first refrigeration branch is connected with the entrance of compressor by the second refrigerant passage with the second refrigeration branch, second refrigerant passage and the first refrigerant passage are close to or are directly sleeved on the outside of the first refrigerant passage, the coolant that the outlet of condenser is flowed out also has higher temperature, coolant in first refrigeration branch and the second refrigeration branch has relatively low temperature, coolant in first refrigerant passage can be cooled in advance by coolant in the first refrigeration branch and the second refrigeration branch jointly through the second refrigerant passage, make the mixing coolant in gas-liquid separator can be separated into gas phase refrigerant and liquid phase coolant more, the operational efficiency of raising system.
In any of the above-described technical scheme, it is preferred that the jet of described ejector is connected with the entrance of described compressor by described second refrigerant passage on described economizer.
Cooling cycle system according to embodiment of the present utility model, the jet of ejector is connected with the entrance of compressor by the second refrigerant passage on economizer, the coolant flowed out in the first refrigeration branch and the second refrigeration branch is made jointly after the second refrigerant passage, the coolant in the first refrigerant passage to be lowered the temperature, ejector can improve the flowing velocity of the coolant in fourth lane, improves the cooling efficiency of the heat exchange to the coolant in the first refrigerant passage.
In any of the above-described technical scheme, it is preferred that described first expansion valve is electric expansion valve.
In any of the above-described technical scheme, it is preferred that described second expansion valve is electric expansion valve.
Cooling cycle system according to embodiment of the present utility model, electric expansion valve preferably both selected by first expansion valve and the second expansion valve, first expansion valve and the second expansion valve just can be carried out instant accurately adjustment according to practical situations by the controller of such cooling cycle system, improve the service behaviour of cooling cycle system of the present utility model.
A kind of refrigeration plant according to this utility model second aspect embodiment, has the cooling cycle system described in any of the above item embodiment.
Having, according to the refrigeration plant that this utility model second aspect embodiment provides, the cooling cycle system that this utility model first aspect any embodiment provides, therefore this refrigeration plant has whole beneficial effects of the cooling cycle system that any of the above-described embodiment provides.
To provide in description below part according to additional aspect of the present utility model and advantage, part will become apparent from the description below, or is recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the structural representation of cooling cycle system of the present utility model.
Wherein, the corresponding relation between accompanying drawing labelling and the component names in Fig. 1 is:
1 compressor, 2 condensers, 3 gas-liquid separators, 401 first expansion valves, 402 second expansion valves, 501 first vaporizers, 502 second vaporizers, 6 evaporative condensers, 7 ejectors, 8 economizers.
Detailed description of the invention
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, this utility model is further described in detail.It should be noted that when not conflicting, embodiments herein and the feature in embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding this utility model; but; this utility model can also adopt other to be different from mode described here to implement, and therefore, protection domain of the present utility model is by the restriction of following public specific embodiment.
As shown in Figure 1, a kind of cooling cycle system is provided according to this utility model first aspect embodiment, including the compressor 1 being connected in turn on refrigerant pipeline, condenser 2, gas-liquid separator 3, also include: the first refrigeration branch, described first refrigeration branch is connected between gas phase refrigerant outlet and the entrance of described compressor 1 of described gas-liquid separator 3, and described first refrigeration branch is connected with in turn evaporative condenser the 6, first expansion valve the 401, first vaporizer 501；Second refrigeration branch, described second refrigeration branch is connected between liquid phase refrigerant exit and the entrance of described compressor 1 of described gas-liquid separator 3, described second refrigeration branch connects with described evaporative condenser 6, and described second refrigeration branch is also associated with the second expansion valve 402 and the second vaporizer 502.
Cooling cycle system according to embodiment of the present utility model, mixing coolant can be mixed by two kinds of non-azeotrope coolant R600a and coolant R23, mixing coolant is after the compression of compressor 1, obtain in the refrigerant vapor entrance condenser 2 of High Temperature High Pressure after partial condensation, enter gas-liquid separator 3, owing to the boiling point of coolant R600a is higher than the boiling point of coolant R23, coolant R600a and coolant R23 can be separated into gas phase refrigerant R23 and liquid phase coolant R600a under gravity in gas-liquid separator 3, by connecting the first refrigeration branch and the second refrigeration branch respectively at the liquid-phase outlet of gas-liquid separator 3 and gaseous phase outlet, substantial amounts of gas phase refrigerant R23 in first refrigeration branch is lowered the temperature and liquefies by evaporation endothermic in evaporative condenser 6 by the Partial Liquid Phase coolant R600a in the second refrigeration branch, the liquid phase coolant R23 after being liquefied in the first refrigeration branch is made can again to undergo phase transition absorbing and cooling temperature in the first vaporizer 501, form first cryogenic temperature；Second refrigeration branch is mainly liquid phase coolant R600a, substantial amounts of liquid phase coolant R600a in second refrigeration branch carries out absorbing and cooling temperature after the second expansion valve 402 and the second vaporizer 502, form second relatively low cryogenic temperature, two refrigeration branch can be respectively used to the refrigeration of different aspect, namely the irreversible heat transfer loss in system has been reclaimed, improve the efficiency of refrigeration plant, also make cooling cycle system of the present utility model can obtain two different cryogenic temperatures, achieve the many temperature functions of machine of associated refrigeration equipment, add the scope of application of product, improve performance and the quality of product.
As shown in Figure 1, in an embodiment of the present utility model, described evaporative condenser 6 have condensation channel and evaporation channel, two ports respectively E port of condensation channel and F port, two ports respectively G port of evaporation channel and H port, described evaporative condenser 6 is connected between the gaseous phase outlet of described gas-liquid separator 3 and described first expansion valve 401 by described condensation channel, and namely E port is connected with the gaseous phase outlet of gas-liquid separator 3, and F port and the first expansion valve 401 connect.The two ends of the evaporation channel of described evaporative condenser 6 connect with the liquid-phase outlet of described gas-liquid separator 3 and the entrance of described compressor 1 respectively, and namely G port finally connects with the liquid-phase outlet of gas-liquid separator 3, and H port finally connects with the entrance of compressor 1.
In this embodiment, part coolant R600a evaporation endothermic in the evaporation channel of evaporative condenser 6, a large amount of gas phase refrigerant R23 in condensation channel are carried out cooling liquefaction, make that condensation channel has liquefaction coolant R23, liquefaction coolant R23 in condensation channel just can again undergo phase transition absorbing and cooling temperature in the first vaporizer 501, forms first cryogenic temperature.
As it is shown in figure 1, in an embodiment of the present utility model, described second expansion valve 402 and described second vaporizer 502 are connected in turn on the refrigerant pipeline between liquid-phase outlet and the evaporation channel of described evaporative condenser 6 of described gas-liquid separator 3.
In this embodiment, in the second refrigeration branch, it is connected with the second expansion valve 402 in turn between liquid-phase outlet and the entrance of compressor 1 of gas-liquid separator 3, second vaporizer 502 and evaporative condenser 6, the gas-liquid mixed coolant R600a flowing out the second vaporizer 502 flows into evaporation endothermic in evaporative condenser 6, gas phase refrigerant R23 in first refrigeration branch is carried out cooling liquefaction, make the first refrigeration branch can obtain lower than the cryogenic temperature under the evaporating temperature of the coolant R600a in the second refrigeration branch and a small amount of refrigerating capacity, make cooling cycle system can obtain two cryogenic temperatures.
In an embodiment of the present utility model, the refrigerant pipeline of described first refrigeration branch and the second refrigeration branch being also associated with ejector 7, the jet of described ejector 7 connects with the entrance of described compressor 1.
In this embodiment, the refrigerant pipeline of the first refrigeration branch and the second refrigeration branch is connected to ejector 7, the jet of ejector 7 connects with the entrance of compressor 1, coolant after heat exchange in first refrigeration branch and the second refrigeration branch is sprayed in the pipeline of arrival end of compressor 1 by ejector 7, improve the flow velocity of coolant in refrigerant pipeline, reduce the heat transfer temperature difference in blood circulation and irreversible loss, the pressure making the coolant of the entrance of compressor 1 raises, reduce the compression ratio of compressor 1, decrease the acting of compressor 1, improve the operational efficiency of system.
In an embodiment of the present utility model, described first refrigeration branch and described second refrigeration branch are connected with a described ejector 7 simultaneously, described ejector 7 have entrance and draining hole, the entrance of described ejector 7 connects with the evaporation channel of described evaporative condenser 6, the outlet of the draining hole of described ejector 7 and described first vaporizer 501, the pressure of the jet of described ejector 7 is more than the pressure of the outlet of described second vaporizer 502.
In this embodiment, the entrance of ejector 7 is connected in the second refrigeration branch, connect with the evaporation channel of evaporative condenser 6, the draining hole of ejector 7 is connected in the first refrigeration branch, outlet with the first vaporizer 501, the pressure of the jet of ejector 7 should be greater than the pressure of the outlet of the first vaporizer 501, the pressure of the expulsion pressure of ejector 7 and the outlet of the first vaporizer 501 produces pressure differential, the draining hole of this pressure official post ejector 7 sucks the coolant in the first refrigeration branch, and all spray from jet, reduce the quantity of required ejector 7, save production cost.
As shown in Figure 1, in an embodiment of the present utility model, also include: economizer 8, described economizer 8 has the first refrigerant passage and the second refrigerant passage, described economizer 8 is connected on the refrigerant pipeline between entrance and the outlet of described condenser 2 of described gas-liquid separator 3 by described first refrigerant passage, and described first refrigeration branch is connected with the entrance of described compressor 1 by described second refrigerant passage on described economizer 8 with described second refrigeration branch.
In this embodiment, two ports of the first refrigerant passage A port and B port respectively, two ports respectively C port of the second refrigerant passage and D port, economizer 8 is connected between the entrance of gas-liquid separator 3 and the outlet of condenser 2 by the first refrigerant passage, namely A port is connected with the outlet of condenser 2, and B port is connected with the entrance of gas-liquid separator 3.First refrigeration branch is connected by the entrance of the second refrigerant passage with compressor 1 with the second refrigeration branch, namely C port connects the first refrigeration branch and the second refrigeration branch, the entrance of D port connection compressor 1, second refrigerant passage and the first refrigerant passage are close to or are directly sleeved on the outside of the first refrigerant passage, the coolant that the outlet of condenser 2 is flowed out also has higher temperature, coolant in first refrigeration branch and the second refrigeration branch has relatively low temperature, coolant in first refrigerant passage can be cooled in advance by coolant in the first refrigeration branch and the second refrigeration branch jointly through the second refrigerant passage, make the mixing coolant in gas-liquid separator 3 can be separated into gas phase refrigerant R23 and liquid phase coolant R600a more, improve the operational efficiency of system.
As it is shown in figure 1, in an embodiment of the present utility model, the jet of described ejector 7 is connected with the entrance of described compressor 1 by described second refrigerant passage on described economizer 8.
In this embodiment, the jet of ejector 7 is connected with the entrance of compressor 1 by the second refrigerant passage on economizer 8, namely D port is connected with the entrance of compressor 1, C port is connected with the jet of ejector, the coolant flowed out in the first refrigeration branch and the second refrigeration branch is made jointly after the second refrigerant passage, the coolant in the first refrigerant passage to be lowered the temperature, ejector 7 can improve the flowing velocity of the coolant in fourth lane, improves the cooling efficiency of the heat exchange to the coolant in the first refrigerant passage.
In an embodiment of the present utility model, described first expansion valve 401 is electric expansion valve.
In an embodiment of the present utility model, described second expansion valve 402 is electric expansion valve.
In this embodiment, electric expansion valve preferably both selected by first expansion valve 401 and the second expansion valve 402, first expansion valve 401 and the second expansion valve 402 just can be carried out instant accurately adjustment according to practical situations by the controller of such cooling cycle system, improve the service behaviour of cooling cycle system of the present utility model.
A kind of refrigeration plant according to this utility model second aspect embodiment, has the cooling cycle system described in any of the above item embodiment.
According to the refrigeration plant that this utility model second aspect embodiment provides, having the cooling cycle system that this utility model first aspect any embodiment provides, therefore this refrigeration plant has whole beneficial effects of the cooling cycle system that any of the above-described embodiment provides.
In the description of this specification, term " connection ", " connection ", " fixing " etc. all should be interpreted broadly, for instance, " connection " can be direct connection, it is also possible to is indirect communication, or mutual conduction；" connection " can be through pipeline and connect, it is also possible to is connected by port, for the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model as the case may be.
In the description of this specification, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment of the present utility model or example.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (10)
1. a cooling cycle system, including the compressor on the refrigerant pipeline being connected to conveying mixing coolant in turn, condenser, gas-liquid separator, it is characterised in that also include:
First refrigeration branch, described first refrigeration branch is connected between gas phase refrigerant outlet and the entrance of described compressor of described gas-liquid separator, and described first refrigeration branch is connected with in turn evaporative condenser, the first expansion valve, the first vaporizer；
Second refrigeration branch, described second refrigeration branch is connected between the liquid phase refrigerant exit of described gas-liquid separator and the entrance of described compressor, described second refrigeration branch connects with described evaporative condenser, and described second coolant branch road is also associated with the second expansion valve and the second vaporizer.
2. cooling cycle system according to claim 1, it is characterized in that, described evaporative condenser has condensation channel and evaporation channel, described evaporative condenser is connected between the gaseous phase outlet of described gas-liquid separator and described second expansion valve by described condensation channel, and the two ends of the evaporation channel of described evaporative condenser connect with the entrance of the liquid-phase outlet of described gas-liquid separator and described compressor respectively.
3. cooling cycle system according to claim 2, it is characterised in that described second expansion valve and described second vaporizer are connected in turn on the refrigerant pipeline between the liquid-phase outlet of described gas-liquid separator and the evaporation channel of described evaporative condenser.
4. cooling cycle system according to claim 2, it is characterised in that being also associated with ejector on the refrigerant pipeline of described first refrigeration branch and described second refrigeration branch, the jet of described ejector connects with the entrance of described compressor.
5. cooling cycle system according to claim 4, it is characterized in that, described first refrigeration branch and described second refrigeration branch are connected with a described ejector simultaneously, described ejector has entrance and draining hole, the entrance of described ejector connects with the evaporation channel of described evaporative condenser, the outlet of the draining hole of described ejector and described first vaporizer, the pressure of the jet of described ejector is more than the pressure of the outlet of described second vaporizer.
6. cooling cycle system according to claim 5, it is characterised in that also include:
Economizer, described economizer has the first refrigerant passage and the second refrigerant passage, described economizer is connected on the refrigerant pipeline between the entrance of described gas-liquid separator and the outlet of described condenser by described first refrigerant passage, and described first refrigeration branch is connected with the entrance of described compressor by described second refrigerant passage on described economizer with described second refrigeration branch.
7. cooling cycle system according to claim 6, it is characterised in that the jet of described ejector is connected with the entrance of described compressor by described second refrigerant passage on described economizer.
8. cooling cycle system according to any one of claim 1 to 7, it is characterised in that described first expansion valve is electric expansion valve.
9. cooling cycle system according to any one of claim 1 to 7, it is characterised in that described second expansion valve is electric expansion valve.
10. a refrigeration plant, it is characterised in that include the cooling cycle system according to any one of claim 1 to 9.
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| CN201620018856.6U CN205351842U (en) | 2016-01-05 | 2016-01-05 | Cooling cycle system and refrigeration plant |
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| CN201620018856.6U CN205351842U (en) | 2016-01-05 | 2016-01-05 | Cooling cycle system and refrigeration plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737621A (en) * | 2018-12-05 | 2019-05-10 | 江苏白雪电器股份有限公司 | Auto-cascading refrigeration system |
| CN112033037A (en) * | 2020-08-24 | 2020-12-04 | 珠海格力电器股份有限公司 | Non-azeotropic refrigerant self-overlapping air conditioning system, control method and air conditioning unit |
-
2016
- 2016-01-05 CN CN201620018856.6U patent/CN205351842U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737621A (en) * | 2018-12-05 | 2019-05-10 | 江苏白雪电器股份有限公司 | Auto-cascading refrigeration system |
| CN109737621B (en) * | 2018-12-05 | 2021-03-19 | 江苏白雪电器股份有限公司 | Self-cascade refrigeration system |
| CN112033037A (en) * | 2020-08-24 | 2020-12-04 | 珠海格力电器股份有限公司 | Non-azeotropic refrigerant self-overlapping air conditioning system, control method and air conditioning unit |
| CN112033037B (en) * | 2020-08-24 | 2024-03-19 | 珠海格力电器股份有限公司 | Non-azeotropic refrigerant self-overlapping air conditioning system, control method and air conditioning unit |
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