CN104101146A - Refrigeration system and refrigeration equipment - Google Patents
Refrigeration system and refrigeration equipment Download PDFInfo
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- CN104101146A CN104101146A CN201310114020.7A CN201310114020A CN104101146A CN 104101146 A CN104101146 A CN 104101146A CN 201310114020 A CN201310114020 A CN 201310114020A CN 104101146 A CN104101146 A CN 104101146A
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Abstract
The invention provides a refrigeration system and refrigeration equipment. The refrigeration system comprises a compressor, a controller and a heat exchanger, wherein the compressor is used for compressing refrigerating fluid conveyed in the heat exchanger; the controller is connected with the heat exchanger, and is used for controlling the heat exchanger to work in a first working mode or a second working mode; the heat exchanger working in the first working mode has heat exchange area smaller than heat exchange area of the heat exchanger working in the second working mode. The invention also provides the refrigeration equipment, which comprises the refrigeration system. According to the refrigeration system and the refrigeration equipment provided by the invention, the two working modes can be provided, and the requirement on power consumption and the requirement on refrigerating capacity can be met simultaneously.
Description
Technical field
The present invention relates to refrigeration control technology, relate in particular to a kind of refrigeration system and refrigeration plant.
Background technology
The refrigeration system of refrigeration plant can be divided into compressor and two parts of heat exchanger, wherein heat exchanger can comprise condenser, device for drying and filtering, capillary and evaporimeter, cold-producing medium is wherein from compressor output, flow through successively above-mentioned parts, for chest freezer, it uses single refrigeration system conventionally, only has a light pipe evaporimeter, by a capillary, regulate evaporating temperature, flow capillaceous is fixed, therefore the evaporating temperature of refrigeration system under certain operating temperature, condensation temperature is also certain, the coefficient of refrigerating performance of same refrigeration system (Coefficient Of Performance, hereinafter to be referred as: COP), refrigerating capacity is also fixed, COP is wherein related to the power consumption of refrigeration system, refrigerating capacity is related to the refrigerating capacity of refrigeration system, it is the refrigerating speed of refrigeration system, therefore, for the horizontal refrigerator of single refrigeration system, its power consumption and refrigerating capacity are all certain, and can differently because of user's use state not change to some extent.
But single refrigeration system faces the contradiction of refrigerating speed and power consumption in actual use, want to allow refrigerating speed enough fast, power consumption will be very large, realizes lower power consumption and can cause refrigerating speed slack-off.
At present, the user of refrigerator, particularly in fact commercial user can be divided into two kinds of patterns for the use of refrigerator, be quick-frozen pattern and storage mode, wherein quick-frozen pattern refers to that the food under normal temperature is put into refrigerator is refrigerated to the process of-18 ℃, under this kind of pattern, user is more concerned about refrigeration system refrigerating capacity, it is chilling rate, snap frozen can be avoided food spoilage, and make food by-7 ℃ of ice crystals, form district fast, can avoid ice crystal thorn breaking cell wall as far as possible, reducing nutrients runs off and at utmost keeps food local flavor, but also be related to the sale shipment speed of commercial user, storage mode is the pattern that the food in household freezer remains on-18 ℃ of following long term storages, and under this kind of pattern, what user more paid close attention to is that power consumption is low.
In addition, at present for refrigeration plants such as refrigerators, national standard only has compulsory standard GB12021.2 < < household electric refrigerator power consumption limit value and energy efficiency grade > > for energy consumption grade, and for refrigerating capacity without mandatory requirement, and the even national incentive policy of some quality examinations is also all tended to energy consumption grade, therefore the Freezer Products of main flow all be take power consumption as main target at present.For reaching minimum power consumption, need the requirement of the design As soon as possible Promising Policy frozen food storage stage of refrigerating capacity, refrigerant system design is more prone to meet and maintains-18 ℃ of needs.This kind of design inclination causes single system refrigerator when meeting power consumption requirement, and refrigerating capacity is low, can not meet the requirement of user to refrigerating capacity.
Summary of the invention
The invention provides a kind of refrigeration system and refrigeration plant, can meet the requirement to power consumption and refrigerating capacity simultaneously.
First aspect of the present invention is to provide a kind of refrigeration system, comprises compressor, controller and heat exchanger;
The cold-producing medium that described compressor is carried for heat exchanger compresses, described controller is connected with described heat exchanger, be used for controlling described heat exchanger and be operated in the first mode of operation or the second mode of operation, described heat exchanger has while being operated in the first mode of operation and is less than the heat exchange area of described heat exchanger when the second mode of operation.
Above-mentioned heat exchanger comprises the first condenser, the first magnetic valve, the first capillary, the first evaporimeter, the second condenser, the second capillary and the second evaporimeter;
The input of described the first condenser is connected with the output of compressor, the output of described the first condenser is connected with the input of described the first magnetic valve, the first output of described the first magnetic valve is connected with described the first input capillaceous, described the first output capillaceous is connected to the input of described the first evaporimeter, and the output of described the first evaporimeter is connected with the input of described compressor;
The input of described the second condenser is connected with the second output of described the first magnetic valve, the output of described the second condenser is connected with described the second input capillaceous, described the second output capillaceous is connected to the input of described the second evaporimeter, and the output of described the second evaporimeter is connected with the input of described the first evaporimeter;
When described controller is used for controlling described heat exchanger and is operated in the first mode of operation, open the first output of described the first magnetic valve, close the second output of described the first magnetic valve, and when controlling described heat exchanger and be operated in the second mode of operation, open the second output of described the first magnetic valve, close the first output of described the first magnetic valve.
Or above-mentioned heat exchanger comprises the second magnetic valve, the first heat exchanger channels and the second heat exchanger channels, described the first heat exchanger channels and the second heat exchanger channels are connected in sequence by condenser, capillary and evaporimeter;
The input of described the second magnetic valve is connected with the output of described compressor, and the first output of described the second magnetic valve is connected with the input of described the first heat exchanger channels, and the output of described the first heat exchanger channels is connected with the input of described compressor; The second output of described the second magnetic valve is connected with the input of described the second heat exchanger channels, and the output of described the second heat exchanger channels is connected with the input of described compressor;
When described controller is used for controlling described heat exchanger and is operated in the first mode of operation, open the first output of described the second magnetic valve, close the second output of described the second magnetic valve, and when controlling described heat exchanger and be operated in the second mode of operation, open the second output of described the second magnetic valve, first output of closing described the second magnetic valve, the heat exchange area of described the second heat exchanger channels is greater than the heat exchange area of described the first heat exchanger channels.
Concrete, above-mentioned compressor is frequency-changeable compressor, described controller for control the operating frequency of described frequency-changeable compressor when the first mode of operation lower than described frequency-changeable compressor the operating frequency when the second mode of operation.
Or, also comprise frequency modulator, described frequency modulator is connected with described controller, be used for according to the control instruction of described controller, to described compressor, provide the power supply of different operating frequency, and the supply frequency providing to described compressor is lower than the supply frequency providing to described compressor when the second mode of operation when the first mode of operation.
Above-mentioned controller is mode of operation gauge tap, and described mode of operation gauge tap is controlled described heat exchanger and is operated in the first mode of operation or the second mode of operation.
Or, above-mentioned controller comprises mode of operation gauge tap and pattern switching temperature controller, described mode of operation gauge tap is used for controlling described heat exchanger and switches to the second mode of operation from the first mode of operation, and described pattern switching temperature controller for switching to the first mode of operation by the mode of operation of described heat exchanger by the second Working mould when cryogenic temperature being detected and reach preset value.
Another aspect of the present invention is to provide a kind of refrigeration plant, comprises above-mentioned refrigeration system.
Above-mentioned refrigeration plant can be a horizontal refrigerator.
Refrigeration system provided by the invention and refrigeration plant, heat exchanger wherein can be operated in two kinds of mode of operations, i.e. the first mode of operation and the second mode of operation, and while being operated in the second mode of operation, there is larger heat exchange area, its exchange capability of heat now, that is to say that refrigerating capacity is stronger, and while being operated in the first mode of operation, because heat exchange area is less, the amount of required cold-producing medium is less, can just meet the needs of-18 ℃ of storages, so its power consumption is with respect to the second mode of operation, can greatly reduce.Therefore, above-mentioned refrigeration system, by transformation working pattern, both can reach the low power consumption under memory module, met the requirement of national standard to power consumption, can realize again the snap frozen under quick-frozen pattern simultaneously, improved chilling rate.
Accompanying drawing explanation
Fig. 1 is the structural representation one of refrigeration system in the embodiment of the present invention;
Fig. 2 is the structural representation two of refrigeration system in the embodiment of the present invention;
Fig. 3 is the structural representation three of refrigeration system in the embodiment of the present invention.
The specific embodiment
Defect for prior art, the embodiment of the present invention provides a kind of refrigeration system, Fig. 1 is the structural representation one of refrigeration system in the embodiment of the present invention, as shown in Figure 1, this refrigeration system comprises compressor 1, controller 2 and heat exchanger 3, the cold-producing medium that wherein said compressor 1 is carried for heat exchanger compresses, described controller 2 is connected with described heat exchanger 3, be used for controlling described heat exchanger and be operated in the first mode of operation or the second mode of operation, described heat exchanger 3 has while being operated in the first mode of operation and is less than the heat exchange area of described heat exchanger when the second mode of operation, this concrete heat exchange area comprises the condensation area of condenser in heat exchanger, and the disengagement area of evaporimeter, and heat exchanger has when being less than the heat exchange area of described heat exchanger when the second mode of operation and specifically referring to that heat exchanger is operated in the first mode of operation when the first mode of operation, the condensation area of its condenser is less than the condensation area while being operated in the second mode of operation, the disengagement area when disengagement area of evaporimeter is less than the second mode of operation.
The refrigeration system that the above embodiment of the present invention provides, heat exchanger wherein can be operated in two kinds of mode of operations, i.e. the first mode of operation and the second mode of operation, while being operated in the second mode of operation, there is larger heat exchange area and refrigerant flow, by controller, make compressor refrigerating capacity and operate power also work is large simultaneously, while being therefore operated in the second Working mould, refrigerating capacity is stronger, and while being operated in the first mode of operation, because heat exchange area is less, the amount of required cold-producing medium is less, can just meet high energy efficiency and maintain-18 ℃ of temperature, its power consumption is with respect to the second mode of operation, also can greatly reduce.Therefore, above-mentioned refrigeration system, by transformation working pattern, both can reach the low power consumption under memory module, met the requirement of national standard to power consumption, can realize again the snap frozen under quick-frozen pattern simultaneously, improved chilling rate.
In the above embodiment of the present invention, can be accomplished in several ways the above-mentioned refrigeration system that can be operated in the first mode of operation and the second mode of operation, Fig. 2 is the structural representation two of refrigeration system in the embodiment of the present invention, so as Fig. 2, this refrigeration system is except comprising compressor 1 and controller 2, and heat exchanger 3 wherein can comprise the first condenser 31, the first magnetic valve 32, the first capillary 33, the first evaporimeter 34, the second condenser 35, the second capillary 36 and the second evaporimeter 37;
The input of the first condenser 31 is connected with the output of compressor 1, the output of the first condenser 31 is connected with the input of described the first magnetic valve 32, the first output of described the first magnetic valve 32 is connected with the input of described the first capillary 33, the output of described the first capillary 33 is connected to the input of described the first evaporimeter 34, and the output of described the first evaporimeter 34 is connected with the input of described compressor 1;
The input of described the second condenser 35 is connected with the second output of described the first magnetic valve 32, the output of described the second condenser 35 is connected with the input of described the second capillary 36, the output of described the second capillary 36 is connected to the input of described the second evaporimeter 37, and the output of described the second evaporimeter 37 is connected with the input of described the first evaporimeter 341;
When described controller 2 is operated in the first mode of operation for controlling described heat exchanger, open the first output of described the first magnetic valve 32, close the second output of described the first magnetic valve 32, and when controlling described heat exchanger and be operated in the second mode of operation, open the second output of described the first magnetic valve 32, close the first output of described the first magnetic valve 32.
The refrigeration system that the present embodiment provides, while being wherein operated in the first mode of operation, cold-producing medium is from compressor 1 output, successively by the first condenser 31, the first magnetic valve 32, after the first capillary 33 and the first evaporimeter 34, re-enter compressor, while being operated in the second mode of operation, cold-producing medium is from compressor 1 output, successively by the first condenser 31, the first magnetic valve 32, the second condenser 35, the second capillary 36, after the second evaporimeter 37 and the first evaporimeter 34, re-enter compressor 1, as can be seen here, with respect to the first mode of operation, the second mode of operation has increased the second condenser 35 and the second evaporimeter 37, heat exchange area increases, exchange capability of heat is significantly improved, in addition, the second capillary under the second mode of operation is by designing to match with the heat exchange area increasing, General Requirements flow expands, evaporating temperature suitably improves simultaneously, by improve the refrigerant quality that flows through in the unit interval and the refrigerating capacity of unit mass cold-producing medium simultaneously, significantly increase cold-producing medium heat exchange amount, the first condenser and the second condenser wherein can adopt various forms of condensers, for example the first condenser adopts light pipe inner condenser, the second condenser adopts and exposes wire tube condenser.The refrigeration system that the present embodiment provides, the first condenser wherein and the first evaporimeter all can use under two kinds of mode of operations, only need the auxiliary heat-exchanging passage that increases route second condenser, the second capillary and the second evaporimeter composition just can realize two kinds of different mode of operations, wherein the second condenser and the second evaporimeter only need less specification just can realize the switching of two kinds of different working modes, meet the requirement to chilling rate and power consumption, cost is lower.
In specific embodiment, can also comprise device for drying and filtering 38, this device for drying and filtering 38 can be as shown in 2, be arranged between the firstth condenser 31 and the first magnetic valve 32, two devices for drying and filtering 38 also can be set, be separately positioned between the first magnetic valve 38 and the first capillary 33, and between the first magnetic valve 32 and the second condenser 35.
In addition, evaporimeter in the above embodiment of the present invention can use band-tube type, various types of evaporimeters such as fin tubular type or fin tube type, when the refrigeration system when above-mentioned is applied to horizontal refrigerator, can use light pipe evaporimeter, the first evaporimeter and the canoe of the second evaporimeter in refrigeration system for above-mentioned employing light pipe evaporimeter can have multiple, for example, to the first evaporimeter, can adopt lower to endless form winding last time, the input of the first evaporimeter is arranged on the bottom of the inner bag of refrigeration plant, and the output of the first evaporimeter is arranged on the top of the inner bag of refrigeration plant, when only using the first evaporimeter, cold-producing medium is positioned at the interface input of inner bag bottom from the first evaporimeter, from the first evaporimeter, be positioned at the interface output on inner bag top, can guarantee that power consumption is minimum, and the second evaporimeter adopts the upper endless form next time that supplies to be wound around, position in inner bag bottom, to between the first evaporimeter and the second evaporimeter, adopt three-way pipe to connect, the second evaporimeter is connected to an input of three-way pipe, the first capillary is connected with another input of three-way pipe, the output of three-way pipe is connected with the first evaporimeter, under the second mode of operation, first cold-producing medium will be positioned at the interface input on inner bag top from the second evaporimeter, after three-way pipe, from the first evaporimeter, be positioned at the interface input of bottom, again from the superposed outlet output of the first evaporimeter, finally get back to compressor, this kind of canoe intersects from top to bottom cold-producing medium, by circulating from bottom to top, make inner bag cryogenic temperature everywhere close, the even temperature difference in maintenance and case, can bring into play to greatest extent refrigeration.
In addition, Fig. 3 is the structural representation three of refrigeration system in the embodiment of the present invention, provided another kind of refrigeration system, refrigeration system in the present embodiment is except comprising compressor 1 and controller 2, heat exchanger wherein comprises the second magnetic valve 41, the first heat exchanger channels 42 and the second heat exchanger channels 43, the first heat exchanger channels 42 and the second heat exchanger channels 43 are wherein connected in sequence by condenser, capillary and evaporimeter, in addition, can also on above-mentioned two heat exchanger channels, device for drying and filtering be set respectively.
Concrete, the input of the second magnetic valve 41 is connected with the output of compressor 1, and the first output of the second magnetic valve 41 is connected with the input of described the first heat exchanger channels 42, and the output of described the first heat exchanger channels 42 is connected with the input of described compressor 1; The second output of described the second magnetic valve 41 is connected with the input of described the second heat exchanger channels, and the output of described the second heat exchanger channels is connected with the input of described compressor;
Concrete, when above-mentioned controller is used for controlling described heat exchanger and is operated in the first mode of operation, open the first output of described the second magnetic valve, close the second output of described the second magnetic valve, and when controlling described heat exchanger and be operated in the second mode of operation, open the second output of described the second magnetic valve, close the first output of described the second magnetic valve, according to the difference of mode of operation, can select one of them heat exchanger channels, and the second heat exchanger channels wherein has larger heat exchange area than the first heat exchanger channels, make the second heat exchanger channels there is larger exchange capability of heat than the first heat exchanger channels, can realize snap frozen, and use the first heat exchanger channels, can reduce power consumption, simultaneously, the second above-mentioned heat exchanger channels has larger heat exchange area than the first heat exchanger channels, refer to that the condensation area of the condenser of the second heat exchanger channels is greater than the condensation area of the condenser of the first heat exchanger channels, and the disengagement area of the second heat exchanger channels is greater than the disengagement area of the second heat exchanger channels.Evaporimeter in the above embodiment of the present invention can use various types of evaporimeters such as band-tube type, fin tubular type or fin tube type, when the refrigeration system when above-mentioned is applied to horizontal refrigerator, can use light pipe evaporimeter, the first evaporimeter and the second evaporimeter are selected upper for next time, or lower a kind of in last time circulation pattern.
In the above embodiment of the present invention, for realizing snap frozen, can change evaporating pressure and realize to increase refrigerant flow mode by increasing disengagement area, condensation area, can improve the refrigerating capacity of compressor 30%.In addition, on the basis of above-mentioned increase refrigerating capacity, can also, further by changing the mode of described compressor operating frequency, improve the refrigerating capacity of compressor.
Concrete, above-mentioned compressor can use frequency-changeable compressor, and above-mentioned controller for control the operating frequency of described frequency-changeable compressor when the first mode of operation lower than described frequency-changeable compressor the operating frequency when the second mode of operation, when the operating frequency in higher, the operate power of compressor and refrigerating capacity can significantly increase, concrete above-mentioned frequency-changeable compressor can be electrodeless frequency-changeable compressor, such electrodeless frequency-changeable compressor can be in certain frequency range continuous setup, simultaneously also can be for non intelligent, the compressor with several variable frequencies.
In addition, above-mentioned refrigeration system can further include frequency modulator, this frequency modulator is connected with described controller, be used for according to the control instruction of described controller, the power supply of different operating frequency is provided to described compressor, and the supply frequency providing to described compressor when the first mode of operation is lower than the supply frequency providing to described compressor when the second mode of operation, concrete, common compressor can be suitable for the power supply of 50Hz and two kinds of operating frequencies of 60Hz, therefore above-mentioned frequency modulator can provide to compressor the power supply of 50Hz or these two kinds of operating frequencies of 60Hz.
In addition, controller in the above embodiment of the present invention can be a mode of operation gauge tap, and by this mode of operation gauge tap, control described heat exchanger and be operated in the first mode of operation or the second mode of operation, this mode of operation gauge tap can use conventional quick-frozen switch, by quick-frozen switch connection, the mode of operation of heat exchanger is adjusted into the second mode of operation, to realize snap frozen, on the contrary, by quick-frozen switch, disconnect and also the mode of operation of heat exchanger can be adjusted into the first mode of operation, to reduce power consumption.
In addition, in the situation that being provided with frequency modulator, quick-frozen switch can also be connected with frequency modulator, so that when quick-frozen switch connection, control frequency modulator the power supply of upper frequency can be provided to described compressor.Or quick-frozen switch is connected with frequency-changeable compressor, to control frequency-changeable compressor, there is higher operating frequency when the quick-frozen switch connection.
In the above embodiment of the present invention, controller wherein can also comprise mode of operation gauge tap and pattern switching temperature controller, described mode of operation gauge tap is used for controlling described heat exchanger and switches to the second mode of operation from the first mode of operation, and described pattern switching temperature controller for switching to the first mode of operation by the mode of operation of described heat exchanger by the second Working mould when cryogenic temperature being detected and reach preset value.Mode of operation gauge tap wherein can be above-mentioned quick-frozen switch, by quick-frozen switch connection, mode of operation can be adjusted into fast cold pattern, realizes snap frozen.Also be provided with in addition pattern switching temperature controller, this pattern switching temperature controller can be arranged on probe in the inner bag of refrigeration plant, when cryogenic temperature being detected and reach preset value, by pattern switching temperature controller, control, mode of operation is switched back to the first mode of operation, and the preset value of above-mentioned cryogenic temperature can be made as-18 ℃.In addition, it is also conceivable that, in the situation that being provided with temperature controller, except above-mentioned quick-frozen switch is connected with frequency modulator or frequency-changeable compressor, pattern switching temperature controller can also be connected with frequency modulator or frequency-changeable compressor, so that when cryogenic temperature being detected and reach preset value, pattern switching temperature controller is controlled frequency modulator the power supply of lower frequency is provided to described compressor, or controls frequency-changeable compressor with lower operating frequency work.
The embodiment of the present invention also provides a kind of refrigeration plant, and this refrigeration plant comprises above-mentioned refrigeration system.It is concrete, and above-mentioned refrigeration plant can be horizontal refrigerator, can certainly be other the independently reefer space that has, and maintains as required the refrigeration plant of two kinds of mode of operations.
The refrigeration plant with this refrigeration system that the above embodiment of the present invention provides, can possess two kinds of mode of operations, storage mode and quick-frozen pattern.While carrying out performance test according to national standard, its refrigerating capacity and power consumption can carry out respectively under quick-frozen pattern and storage mode, and under quick-frozen pattern, the more conventional refrigeration system of refrigerating capacity increases 2-3 doubly, under storage mode, still can be up to state standards for the requirement of power consumption.
Refrigeration plant in the above embodiment of the present invention can be a horizontal refrigerator.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a refrigeration system, is characterized in that, comprises compressor, controller and heat exchanger;
The cold-producing medium that described compressor is carried for heat exchanger compresses, described controller is connected with described heat exchanger, be used for controlling described heat exchanger and be operated in the first mode of operation or the second mode of operation, described heat exchanger has while being operated in the first mode of operation and is less than the heat exchange area of described heat exchanger when the second mode of operation.
2. refrigeration system according to claim 1, is characterized in that, described heat exchanger comprises the first condenser, the first magnetic valve, the first capillary, the first evaporimeter, the second condenser, the second capillary and the second evaporimeter;
The input of described the first condenser is connected with the output of compressor, the output of described the first condenser is connected with the input of described the first magnetic valve, the first output of described the first magnetic valve is connected with described the first input capillaceous, described the first output capillaceous is connected to the input of described the first evaporimeter, and the output of described the first evaporimeter is connected with the input of described compressor;
The input of described the second condenser is connected with the second output of described the first magnetic valve, the output of described the second condenser is connected with described the second input capillaceous, described the second output capillaceous is connected to the input of described the second evaporimeter, and the output of described the second evaporimeter is connected with the input of described the first evaporimeter;
When described controller is used for controlling described heat exchanger and is operated in the first mode of operation, open the first output of described the first magnetic valve, close the second output of described the first magnetic valve, and when controlling described heat exchanger and be operated in the second mode of operation, open the second output of described the first magnetic valve, close the first output of described the first magnetic valve.
3. refrigeration system according to claim 1, it is characterized in that, described heat exchanger comprises the second magnetic valve, the first heat exchanger channels and the second heat exchanger channels, and described the first heat exchanger channels and the second heat exchanger channels are connected in sequence by condenser, capillary and evaporimeter;
The input of described the second magnetic valve is connected with the output of described compressor, and the first output of described the second magnetic valve is connected with the input of described the first heat exchanger channels, and the output of described the first heat exchanger channels is connected with the input of described compressor; The second output of described the second magnetic valve is connected with the input of described the second heat exchanger channels, and the output of described the second heat exchanger channels is connected with the input of described compressor;
When described controller is used for controlling described heat exchanger and is operated in the first mode of operation, open the first output of described the second magnetic valve, close the second output of described the second magnetic valve, and when controlling described heat exchanger and be operated in the second mode of operation, open the second output of described the second magnetic valve, first output of closing described the second magnetic valve, the heat exchange area of described the second heat exchanger channels is greater than the heat exchange area of described the first heat exchanger channels.
4. according to the arbitrary described refrigeration system of claim 1-3, it is characterized in that, described compressor is frequency-changeable compressor, described controller for control the operating frequency of described frequency-changeable compressor when the first mode of operation lower than described frequency-changeable compressor the operating frequency when the second mode of operation.
5. according to the arbitrary described refrigeration system of claim 1-3, it is characterized in that, also comprise frequency modulator, described frequency modulator is connected with described controller, be used for according to the control instruction of described controller, to described compressor, provide the power supply of different operating frequency, and the supply frequency providing to described compressor is lower than the supply frequency providing to described compressor when the second mode of operation when the first mode of operation.
6. according to the arbitrary described refrigeration system of claim 1-3, it is characterized in that, described controller is mode of operation gauge tap, and described mode of operation gauge tap is controlled described heat exchanger and is operated in the first mode of operation or the second mode of operation.
7. according to the arbitrary described refrigeration system of claim 1-3, it is characterized in that, described controller comprises mode of operation gauge tap and pattern switching temperature controller, described mode of operation gauge tap is used for controlling described heat exchanger and switches to the second mode of operation from the first mode of operation, and described pattern switching temperature controller for switching to the first mode of operation by the mode of operation of described heat exchanger by the second Working mould when cryogenic temperature being detected and reach preset value.
8. a refrigeration plant, is characterized in that, comprises the arbitrary described refrigeration system of claim 1-7.
9. refrigeration plant according to claim 8, is characterized in that, described refrigeration plant is a horizontal refrigerator.
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| CN109764558A (en) * | 2019-01-09 | 2019-05-17 | 青岛海尔空调器有限总公司 | A kind of control method of energy resource system |
| CN112776556A (en) * | 2019-11-11 | 2021-05-11 | 郑州宇通客车股份有限公司 | Vehicle fixed-displacement single-compressor double-area air conditioning system and liquid impact prevention method thereof |
| CN113551460A (en) * | 2021-07-23 | 2021-10-26 | 浙江星星冷链集成股份有限公司 | A around tubular construction and direct-cooling formula freezer for direct-cooling formula freezer inner bag |
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