CN104101146B - Refrigeration system and refrigeration plant - Google Patents

Refrigeration system and refrigeration plant Download PDF

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Publication number
CN104101146B
CN104101146B CN201310114020.7A CN201310114020A CN104101146B CN 104101146 B CN104101146 B CN 104101146B CN 201310114020 A CN201310114020 A CN 201310114020A CN 104101146 B CN104101146 B CN 104101146B
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China
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heat exchanger
mode
outfan
compressor
refrigeration
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CN201310114020.7A
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Chinese (zh)
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CN104101146A (en
Inventor
肖长亮
刘越
卞伟
芦小飞
彭灿
姚书强
彭洪祥
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海尔集团公司
青岛海尔特种电冰柜有限公司
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Abstract

The present invention provides a kind of refrigeration system and refrigeration plant, including compressor, controller and heat exchanger;Described compressor cold-producing medium of conveying in heat exchanger is compressed, described controller is connected with described heat exchanger, being operated in the first mode of operation or the second mode of operation for controlling described heat exchanger, described heat exchanger has when being operated in the first mode of operation less than the described heat exchanger heat exchange area when the second mode of operation.Present invention also offers a kind of refrigeration plant, including above-mentioned refrigeration system.The refrigeration system of present invention offer and refrigeration plant, using the teaching of the invention it is possible to provide two kinds of mode of operations, it is possible to meet power consumption and the requirement of refrigerating capacity simultaneously.

Description

Refrigeration system and refrigeration plant

Technical field

The present invention relates to refrigeration control technology, particularly relate to a kind of refrigeration system and refrigeration plant.

Background technology

The refrigeration system of refrigeration plant can be divided into compressor and heat exchanger two parts, wherein heat exchangers Can include condenser, device for drying and filtering, capillary tube and vaporizer, cold-producing medium therein is from compressor After output, flowing successively through above-mentioned parts, for chest freezer, it generally uses single refrigeration system, I.e. only one of which light pipe evaporator, regulates evaporating temperature by a capillary, the flow of capillary tube Being fixing, therefore under certain operating temperature, the evaporating temperature of refrigeration system, condensation temperature are also Certain, the coefficient of refrigerating performance of same refrigeration system (Coefficient Of Performance, with Lower abbreviation: COP), refrigerating capacity be also fixing, COP therein is related to the power consumption of refrigeration system Amount, refrigerating capacity is related to the refrigerating speed of the refrigerating capacity of refrigeration system, i.e. refrigeration system, therefore, For the horizontal refrigerator of single refrigeration system, its power consumption and refrigerating capacity are all certain, and not Can be varied from because the use state of user is different.

But single refrigeration system faces the contradiction of refrigerating speed and power consumption in actual use, wants to allow Refrigerating speed is enough fast, then power consumption will be very big, realizes relatively low power consumption and then can cause refrigeration speed Spend slack-off.

At present, the user of refrigerator, particularly commercial user can essentially be divided into for the use of refrigerator Both of which, i.e. quick-freezing pattern and storage mode, wherein quick-freezing pattern refers to put the food under room temperature Entering refrigerator and be refrigerated to the process of-18 DEG C, under this kind of pattern, user is more concerned about refrigeration system refrigerating capacity, I.e. chilling rate, quick freezing can be avoided food spoilage, and make food quickly through-7 DEG C of ice crystals Form district, ice crystal can be avoided as far as possible to puncture cell wall, reduce nutrient and run off and at utmost keep food Thing local flavor, but also it is related to the sale shipment speed of commercial user;In storage mode is household freezer Food is maintained at the pattern of less than-18 DEG C long term storages, and under this kind of pattern, user is more concerned with consumption Electricity is low.

It addition, at present for refrigeration plants such as refrigerators, national standard has by force only for energy consumption grade Property standard GB 12021.2 " household electric refrigerator power consumption limit value and energy efficiency grade " processed, and right In refrigerating capacity but without compulsive requirement, and some quality examinations even country's incentive policy also tends to Energy consumption grade, therefore the Freezer Products of current main flow is all with power consumption as main target.For reaching minimum Power consumption, then need to meet the design of refrigerating capacity as far as possible the requirement of frozen food storage stage, Refrigerant system design is more likely to meet-18 DEG C of needs of maintenance.This kind of design inclination causes single system cold Cabinet is when meeting power consumption requirement, and refrigerating capacity is low, it is impossible to meet user's requirement to refrigerating capacity.

Summary of the invention

The present invention provides a kind of refrigeration system and refrigeration plant, it is possible to meet power consumption and system simultaneously The requirement of cold energy power.

The first aspect of the invention is to provide a kind of refrigeration system, including compressor, controller with change Hot device;

Described compressor cold-producing medium of conveying in heat exchanger is compressed, described controller and institute State heat exchanger to connect, be used for controlling described heat exchanger and be operated in the first mode of operation or the second Working mould Formula, described heat exchanger has less than described heat exchanger at the second Working mould when being operated in the first mode of operation Heat exchange area during formula.

Above-mentioned heat exchanger include the first condenser, the first electromagnetic valve, the first capillary tube, the first vaporizer, Second condenser, the second capillary tube and the second vaporizer;

The described input of the first condenser is connected with the outfan of compressor, described first condenser Outfan is connected with the input of described first electromagnetic valve, the first outfan of described first electromagnetic valve with The input of described first capillary tube connects, and the outfan of described first capillary tube is connected to described first The input of vaporizer, the outfan of described first vaporizer is connected with the input of described compressor;

The input of described second condenser is connected with the second outfan of described first electromagnetic valve, described The outfan of the second condenser is connected with the input of described second capillary tube, described second capillary tube Outfan is connected to the input of described second vaporizer, and the outfan of described second vaporizer is with described The input of the first vaporizer connects;

Described controller is used for controlling described heat exchanger when being operated in the first mode of operation, opens described First outfan of one electromagnetic valve, cuts out the second outfan of described first electromagnetic valve, and is used for controlling Make described heat exchanger when being operated in the second mode of operation, open the second output of described first electromagnetic valve End, closes the first outfan of described first electromagnetic valve.

Or, above-mentioned heat exchanger includes the second electromagnetic valve, the first heat exchanger channels and the second heat exchanger channels, Described first heat exchanger channels and the second heat exchanger channels are sequentially connected with by condenser, capillary tube and vaporizer Form;

The input of described second electromagnetic valve is connected with the outfan of described compressor, described second electromagnetism First outfan of valve is connected with the input of described first heat exchanger channels, described first heat exchanger channels Outfan is connected with the input of described compressor;Second outfan of described second electromagnetic valve is with described The input of the second heat exchanger channels connects, the outfan of described second heat exchanger channels and described compressor Input connects;

Described controller is used for controlling described heat exchanger when being operated in the first mode of operation, opens described First outfan of two electromagnetic valves, cuts out the second outfan of described second electromagnetic valve, and is used for controlling Make described heat exchanger when being operated in the second mode of operation, open the second output of described second electromagnetic valve End, closes the first outfan of described second electromagnetic valve, and the heat exchange area of described second heat exchanger channels is big Heat exchange area in described first heat exchanger channels.

Concrete, above-mentioned compressor is frequency-changeable compressor, and described controller is used for controlling described frequency conversion pressure The contracting machine operating frequency when the first mode of operation is less than described frequency-changeable compressor in the second mode of operation Time operating frequency.

Or, also include that frequency modulator, described frequency modulator are connected with described controller, for according to institute State the control instruction of controller, the power supply of different operating frequency is provided to described compressor, and first It is less than when the second mode of operation to described to the supply frequency that described compressor provides during mode of operation The supply frequency that compressor provides.

Controller noted above is that mode of operation controls switch, and described mode of operation controls to change described in on-off control Hot device is operated in the first mode of operation or the second mode of operation.

Or, controller noted above includes that mode of operation controls switch and pattern switching temperature controller, Described mode of operation control switch is used for controlling described heat exchanger and switches to second from the first mode of operation Mode of operation, described pattern switching temperature controller is for when detecting that cryogenic temperature reaches preset value The mode of operation of described heat exchanger is switched to the first mode of operation by the second mode of operation.

Another aspect of the present invention is to provide a kind of refrigeration plant, including above-mentioned refrigeration system.

Above-mentioned refrigeration plant can be a horizontal refrigerator.

The refrigeration system of present invention offer and refrigeration plant, heat exchanger therein can be operated in two kinds of works Operation mode, the i.e. first mode of operation and the second mode of operation, and have relatively when being operated in the second mode of operation Big heat exchange area, now its exchange capability of heat, that is to say that refrigerating capacity is higher, and be operated in the first work During pattern, owing to heat exchange area is less, the amount of required cold-producing medium is less, can just meet-18 DEG C of storages The needs deposited, therefore its power consumption is relative to the second mode of operation, can be substantially reduced.Therefore, above-mentioned Refrigeration system by transformation working pattern, both can reach the low power consumption under memory module, meet state Family's standard requirement to power consumption, is capable of again, to the quick freezing under quick-freezing pattern, improving cold simultaneously Freeze speed.

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.

Detailed description of the invention

For the defect of prior art, embodiments providing a kind of refrigeration system, Fig. 1 is this The structural representation one of refrigeration system in inventive embodiments, as it is shown in figure 1, this refrigeration system includes pressure Contracting machine 1, controller 2 and heat exchanger 3, the conveying in heat exchanger of wherein said compressor 1 Cold-producing medium is compressed, and described controller 2 is connected with described heat exchanger 3, is used for controlling described heat exchange Device is operated in the first mode of operation or the second mode of operation, and described heat exchanger 3 is operated in the first Working mould Have during formula less than the described heat exchanger heat exchange area when the second mode of operation, this concrete heat-transfer surface Amass and include the condensation area of condenser in heat exchanger, and the disengagement area of vaporizer, and heat exchanger exists Have concrete less than the described heat exchanger heat exchange area when the second mode of operation during the first mode of operation Referring to when heat exchanger is operated in the first mode of operation, the condensation area of its condenser is less than being operated in second Condensation area during mode of operation, the disengagement area of vaporizer is less than evaporating surface during the second mode of operation Long-pending.

The refrigeration system that the above embodiment of the present invention provides, heat exchanger therein can be operated in two kinds of work Pattern, the i.e. first mode of operation and the second mode of operation, have bigger when being operated in the second mode of operation Heat exchange area and refrigerant flow, make compressor refrigerating capacity by controller simultaneously and run power also work greatly, When being therefore operated in the second mode of operation, refrigerating capacity is higher, and when being operated in the first mode of operation, due to Heat exchange area is less, and the amount of required cold-producing medium is less, can just meet and can imitate and maintain-18 DEG C Temperature, its power consumption is relative to the second mode of operation, it is also possible to be substantially reduced.Therefore, above-mentioned refrigeration System passes through transformation working pattern, both can reach the low power consumption under memory module, and meet national standard Requirement to power consumption, is capable of again the quick freezing under quick-freezing pattern simultaneously, improves chilling rate.

In the above embodiment of the present invention, can be accomplished in several ways and above-mentioned can be operated in the first work Pattern and the refrigeration system of the second mode of operation, Fig. 2 is that in the embodiment of the present invention, the structure of refrigeration system is shown Be intended to two, such as Fig. 2 so, this refrigeration system, in addition to including compressor 1 and controller 2, therein is changed Hot device 3 can include that first condenser the 31, first electromagnetic valve the 32, first capillary tube 33, first evaporates Device the 34, second condenser the 35, second capillary tube 36 and the second vaporizer 37;

The input of the first condenser 31 is connected with the outfan of compressor 1, the first condenser 31 Outfan is connected with the input of described first electromagnetic valve 32, and the first of described first electromagnetic valve 32 is defeated Going out end to be connected with the input of described first capillary tube 33, the outfan of described first capillary tube 33 connects To the input of described first vaporizer 34, the outfan of described first vaporizer 34 and described compression The input of machine 1 connects;

The input of described second condenser 35 connects with the second outfan of described first electromagnetic valve 32 Connecing, the outfan of described second condenser 35 is connected with the input of described second capillary tube 36, institute The outfan stating the second capillary tube 36 is connected to the input of described second vaporizer 37, and described second The outfan of vaporizer 37 is connected with the input of described first vaporizer 341;

Described controller 2 is used for controlling described heat exchanger when being operated in the first mode of operation, opens described First outfan of one electromagnetic valve 32, cuts out the second outfan of described first electromagnetic valve 32, Yi Jiyong In time controlling described heat exchanger and be operated in the second mode of operation, open the second defeated of described first electromagnetic valve 32 Go out end, close the first outfan of described first electromagnetic valve 32.

The refrigeration system that the present embodiment provides, when being wherein operated in the first mode of operation, cold-producing medium is from compression Machine 1 exports, and passes sequentially through first condenser the 31, first electromagnetic valve the 32, first capillary tube 33 and first Being re-entered into compressor after vaporizer 34, when being operated in the second mode of operation, cold-producing medium is from compressor 1 Output, passes sequentially through first condenser the 31, first electromagnetic valve the 32, second condenser the 35, second capillary It is re-entered into compressor 1 after pipe the 36, second vaporizer 37 and the first vaporizer 34, it can be seen that, Relative to the first mode of operation, the second mode of operation adds the second condenser 35 and the second vaporizer 37, heat exchange area increases, and exchange capability of heat is significantly improved, it addition, second under the second mode of operation Capillary tube to match with the heat exchange area increased by design, is typically required that flow expands, evaporates simultaneously Temperature properly increases, and is freezed by the refrigerant quality flow through in improving the unit interval and unit mass simultaneously The refrigerating capacity of agent, dramatically increases refrigerant heat exchanger amount, and the first condenser therein and the second condenser are permissible Using various forms of condenser, the such as first condenser to use light pipe inner condenser, the second condenser is adopted With exposing wire tube condenser.The refrigeration system that the present embodiment provides, the first condenser therein and first steams Send out device all can use under two kinds of mode of operations, it is only necessary to increase by one route the second condenser, second mao The auxiliary heat-exchanging passage of tubule and the second vaporizer composition just can realize two kinds of different mode of operations, its In the second condenser and the second vaporizer have only to less specification and be just capable of two kinds of different working modes Switching, meet to chilling rate and the requirement of power consumption, cost is relatively low.

In the particular embodiment, it is also possible to include device for drying and filtering 38, this device for drying and filtering 38 is permissible As indicated with 2, it is arranged between the firstth condenser 31 and the first electromagnetic valve 32, it is also possible to arrange two Device for drying and filtering 38, is separately positioned between the first electromagnetic valve 38 and the first capillary tube 33, and first Between electromagnetic valve 32 and the second condenser 35.

It addition, the vaporizer in the above embodiment of the present invention can use band-tube type, fin tubular type or fin Various types of vaporizer such as tubular type, when being applied to horizontal refrigerator when above-mentioned refrigeration system, can make Using light pipe evaporator, the first vaporizer and the second vaporizer for above-mentioned employing light pipe evaporator are in refrigeration Canoe in system can have multiple, such as, to the first vaporizer, can use lower for circulation side's last time Formula is wound around, and the input of the i.e. first vaporizer is arranged on the bottom of the inner bag of refrigeration plant, and first evaporates The outfan of device is arranged on the top of the inner bag of refrigeration plant, when only using the first vaporizer, cold-producing medium Being positioned at the input of inner bag lower interface from the first vaporizer, the interface being positioned at inner bag top from the first vaporizer is defeated Go out, it is ensured that power consumption is minimum, and the endless form that the second vaporizer uses down-feed and up-return is wound around, The position of inner bag bottom, will use tee T to connect between the first vaporizer and the second vaporizer, second steams Sending out device and be connected to an input of tee T, the first capillary tube is connected with another input of tee T, The outfan of tee T and the first vaporizer connect, and in the second operation mode, cold-producing medium will be first from the Two vaporizers are positioned at the interface input on inner bag top, after tee T, are positioned at bottom from the first vaporizer Interface input, then from the first vaporizer superposed outlet output, eventually pass back to compressor, this kind Canoe makes cold-producing medium intersect from top to bottom, by circulating from bottom to top so that inner bag refrigeration everywhere Temperature close, keeps and the uniform temperature difference in case, it is possible to play refrigeration to greatest extent.

It addition, the structural representation three that Fig. 3 is refrigeration system in the embodiment of the present invention, give another kind Refrigeration system, the refrigeration system in the present embodiment, in addition to including compressor 1 and controller 2, therein is changed Hot device includes the second electromagnetic valve the 41, first heat exchanger channels 42 and the second heat exchanger channels 43, therein first Heat exchanger channels 42 and the second heat exchanger channels 43 are connected in sequence by condenser, capillary tube and vaporizer, Furthermore it is also possible to be respectively provided with device for drying and filtering on above-mentioned two heat exchanger channels.

Concrete, the input of the second electromagnetic valve 41 is connected with the outfan of compressor 1, the second electromagnetic valve First outfan of 41 is connected with the input of described first heat exchanger channels 42, described first heat exchanger channels The outfan of 42 is connected with the input of described compressor 1;Second output of described second electromagnetic valve 41 End is connected with the input of described second heat exchanger channels, the outfan of described second heat exchanger channels and described pressure The input of contracting machine connects;

Concrete, controller noted above is used for controlling described heat exchanger when being operated in the first mode of operation, open-minded First outfan of described second electromagnetic valve, cuts out the second outfan of described second electromagnetic valve, Yi Jiyong In time controlling described heat exchanger and be operated in the second mode of operation, open the second output of described second electromagnetic valve End, closes the first outfan of described second electromagnetic valve, i.e. according to the difference of mode of operation, can select One of them heat exchanger channels, and the second heat exchanger channels therein has bigger changing than the first heat exchanger channels Hot side amasss so that the second heat exchanger channels has bigger exchange capability of heat than the first heat exchanger channels, it is possible to realize Quick freezing, and use the first heat exchanger channels, power consumption, meanwhile, the second above-mentioned heat exchange can be reduced Passage has bigger heat exchange area than the first heat exchanger channels, refers to condenser cold of the second heat exchanger channels Solidifying area is more than the condensation area of the condenser of the first heat exchanger channels, and the evaporating surface of the second heat exchanger channels The long-pending disengagement area more than the second heat exchanger channels.Vaporizer in the above embodiment of the present invention can use plate Various types of vaporizers such as tubular type, fin tubular type or fin tube type, when above-mentioned refrigeration system application When horizontal refrigerator, it is possible to use light pipe evaporator, the first vaporizer and the second vaporizer select under upper confession Return, or the lower one supplied in circulation pattern last time.

In the above embodiment of the present invention, for realizing quick freezing, can be by increasing disengagement area, condensation Area, changes evaporating pressure and realizes to increase refrigerant flow mode, can improve the system of compressor 30% Cold energy power.It addition, on the basis of above-mentioned increase refrigerating capacity, it is also possible to described by changing further The mode of compressor operating frequency, improves the refrigerating capacity of compressor.

Concrete, above-mentioned compressor can use frequency-changeable compressor, and above-mentioned controller is used for controlling The described frequency-changeable compressor operating frequency when the first mode of operation is less than described frequency-changeable compressor in the second work Operating frequency during operation mode, when being in higher operating frequency, the operation power of compressor and refrigeration Amount can dramatically increase, and concrete above-mentioned frequency-changeable compressor can be electrodeless frequency-changeable compressor, such nothing Pole frequency-changeable compressor can adjust in certain frequency range continuously, can also be simultaneously non intelligent, There is the compressor of several variable frequencies.

It addition, above-mentioned refrigeration system can further include frequency modulator, this frequency modulator and described control Device connects, and for the control instruction according to described controller, provides different operating frequency to described compressor Power supply, and the supply frequency provided to described compressor when the first mode of operation is less than in the second work The supply frequency provided to described compressor during pattern, concrete, common compressor can be suitable for 50Hz With the power supply of two kinds of operating frequencies of 60Hz, the most above-mentioned frequency modulator can to compressor provide 50Hz or The power supply of 60Hz both operating frequencies.

It addition, the controller in the above embodiment of the present invention can be a mode of operation controls switch, and Controlled heat exchanger described in on-off control by this mode of operation and be operated in the first mode of operation or the second Working mould Formula, this mode of operation controls switch and conventional quick-freezing can be used to switch, by quick-freezing switch connection, will The mode of operation of heat exchanger is adjusted to the second mode of operation, to realize quick freezing, on the contrary, passes through quick-freezing Switch off and the mode of operation of heat exchanger can also be adjusted to the first mode of operation, to reduce power consumption.

It addition, in the case of being provided with frequency modulator, it is also possible to quick-freezing switch is connected with frequency modulator, with Making when quick-freezing switch connection, controlling frequency modulator can provide the power supply of upper frequency to described compressor. Or quick-freezing switch is connected with frequency-changeable compressor, have when quick-freezing switch connection controlling frequency-changeable compressor There is higher operating frequency.

In the above embodiment of the present invention, controller therein can also include that mode of operation controls switch and mould Formula switching temperature controller, described mode of operation controls switch and is used for controlling described heat exchanger from the first work Pattern switches to the second mode of operation, and described pattern switching temperature controller is for cryogenic temperature being detected When reaching preset value, the mode of operation of described heat exchanger is switched to the first Working mould by the second mode of operation Formula.It can be above-mentioned quick-freezing switch that mode of operation therein controls switch, can by quick-freezing switch connection Mode of operation to be adjusted to quickly cooling pattern, it is achieved quick freezing.It is additionally provided with pattern switching temperature Controller, probe can be arranged in the inner bag of refrigeration plant by this pattern switching temperature controller, works as inspection Measure cryogenic temperature when reaching preset value, controlled by pattern switching temperature controller, mode of operation is cut Gaining the first mode of operation, the preset value of above-mentioned cryogenic temperature can be set to-18 DEG C.Furthermore it is also possible to Consider, in the case of being provided with temperature controller, except above-mentioned quick-freezing switch and frequency modulator or frequency conversion compression Outside machine connects, it is also possible to pattern switching temperature controller is connected with frequency modulator or frequency-changeable compressor, so that Must be when detecting that cryogenic temperature reaches preset value, pattern switching temperature controller controls frequency modulator to described Compressor provides the power supply of lower frequency, or controls frequency-changeable compressor with relatively low operating frequency work.

The embodiment of the present invention additionally provides a kind of refrigeration plant, and this refrigeration plant includes above-mentioned refrigeration system. It is concrete, and above-mentioned refrigeration plant can be horizontal refrigerator, naturally it is also possible to have independence for other Reefer space, and as required maintain two kinds of mode of operations refrigeration plant.

The refrigeration plant with this refrigeration system that the above embodiment of the present invention provides, it is possible to possess two kinds of works Operation mode, storage mode and quick-freezing pattern.When carrying out performance test according to national standard, its refrigerating capacity Can carry out under quick-freezing pattern and storage mode respectively with power consumption, and under quick-freezing pattern refrigerating capacity is relatively Conventional refrigerant system increases 2-3 times, still is able to be up to state standards for power consumption under storage mode Requirement.

Refrigeration plant in the above embodiment of the present invention can be a horizontal refrigerator.

Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right It limits;Although the present invention being described in detail with reference to foregoing embodiments, this area common Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it, Or the most some or all of technical characteristic is carried out equivalent;And these amendments or replacement, and The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.

Claims (8)

1. a refrigeration system, it is characterised in that include compressor, controller and heat exchanger;
Described compressor cold-producing medium of conveying in heat exchanger is compressed, described controller and institute State heat exchanger to connect, be used for controlling described heat exchanger and be operated in the first mode of operation or the second Working mould Formula, described heat exchanger has less than described heat exchanger at the second Working mould when being operated in the first mode of operation Heat exchange area during formula;
Described heat exchanger include the first condenser, the first electromagnetic valve, the first capillary tube, the first vaporizer, Second condenser, the second capillary tube and the second vaporizer;
The described input of the first condenser is connected with the outfan of compressor, described first condenser Outfan is connected with the input of described first electromagnetic valve, the first outfan of described first electromagnetic valve with The input of described first capillary tube connects, and the outfan of described first capillary tube is connected to described first The input of vaporizer, the outfan of described first vaporizer is connected with the input of described compressor;
The input of described second condenser is connected with the second outfan of described first electromagnetic valve, described The outfan of the second condenser is connected with the input of described second capillary tube, described second capillary tube Outfan is connected to the input of described second vaporizer, and the outfan of described second vaporizer is with described The input of the first vaporizer connects;
Described controller is used for controlling described heat exchanger when being operated in the first mode of operation, opens described First outfan of one electromagnetic valve, cuts out the second outfan of described first electromagnetic valve, and is used for controlling Make described heat exchanger when being operated in the second mode of operation, open the second output of described first electromagnetic valve End, closes the first outfan of described first electromagnetic valve.
Refrigeration system the most according to claim 1, it is characterised in that described heat exchanger includes Second electromagnetic valve, the first heat exchanger channels and the second heat exchanger channels, described first heat exchanger channels and second changes The passage of heat is connected in sequence by condenser, capillary tube and vaporizer;
The input of described second electromagnetic valve is connected with the outfan of described compressor, described second electromagnetism First outfan of valve is connected with the input of described first heat exchanger channels, described first heat exchanger channels Outfan is connected with the input of described compressor;Second outfan of described second electromagnetic valve is with described The input of the second heat exchanger channels connects, the outfan of described second heat exchanger channels and described compressor Input connects;
Described controller is used for controlling described heat exchanger when being operated in the first mode of operation, opens described First outfan of two electromagnetic valves, cuts out the second outfan of described second electromagnetic valve, and is used for controlling Make described heat exchanger when being operated in the second mode of operation, open the second output of described second electromagnetic valve End, closes the first outfan of described second electromagnetic valve, and the heat exchange area of described second heat exchanger channels is big Heat exchange area in described first heat exchanger channels.
Refrigeration system the most according to claim 1 and 2, it is characterised in that described compressor For frequency-changeable compressor, described controller is for controlling described frequency-changeable compressor when the first mode of operation Operating frequency is less than the described frequency-changeable compressor operating frequency when the second mode of operation.
Refrigeration system the most according to claim 1 and 2, it is characterised in that also include frequency modulation Device, described frequency modulator is connected with described controller, is used for the control instruction according to described controller, to Described compressor provides the power supply of different operating frequency, and when the first mode of operation to described compressor The supply frequency provided is less than the supply frequency provided to described compressor when the second mode of operation.
Refrigeration system the most according to claim 1 and 2, it is characterised in that described controller Controlling switch for mode of operation, described mode of operation controls heat exchanger described in on-off control and is operated in first Mode of operation or the second mode of operation.
Refrigeration system the most according to claim 1 and 2, it is characterised in that described controller Controlling switch and pattern switching temperature controller including mode of operation, described mode of operation controls switch and uses The second mode of operation, described pattern switching temperature is switched to from the first mode of operation in controlling described heat exchanger Degree controller for when detecting that cryogenic temperature reaches preset value by the mode of operation of described heat exchanger The first mode of operation is switched to by the second mode of operation.
7. a refrigeration plant, it is characterised in that include the arbitrary described refrigeration of claim 1-6 System.
Refrigeration plant the most according to claim 7, it is characterised in that described refrigeration plant is One horizontal refrigerator.
CN201310114020.7A 2013-04-03 2013-04-03 Refrigeration system and refrigeration plant CN104101146B (en)

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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

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