CN106642842A - Cooling device and control method and system thereof - Google Patents
Cooling device and control method and system thereof Download PDFInfo
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- CN106642842A CN106642842A CN201510731075.1A CN201510731075A CN106642842A CN 106642842 A CN106642842 A CN 106642842A CN 201510731075 A CN201510731075 A CN 201510731075A CN 106642842 A CN106642842 A CN 106642842A
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Abstract
The invention discloses a cooing device for lowering the temperature of drink liquid. The high cooling efficiency can be achieved through a control method and system of the cooling device. The cooling device realizes high cooling efficiency through contact between an evaporator and a first heat exchange tube of a drink liquid line and/or an auxiliary evaporator and a second heat exchange tube of the drink liquid line.
Description
【Technical field】
The present invention relates to a kind of domestic or commercial electrical equipment, more particularly to a kind of cooling device for being lowered the temperature to water or other liquid and its control method.
【Background technology】
As habits and customs change, drinking the consumer group of lower temperature drink gradually increases, and the custom such as ice coffee is drunk by especially American-European each department country.Produce at present during coffee and first to be brewed using boiling water, add ice cube when needing to be lowered the temperature, prior art adopts more Cempression engine refrigerating apparatus, ice cube is produced such as compression mechanism ice maker, including evaporimeter, compressor, condenser, restricting element etc., liquid is set to freeze into the form for needing by refrigerant suction heat, from in die cavity ice cube is taken out into stand-by again afterwards, it is insufficient because of ice cube and preferable consumption temperature can not be reached during use, otherwise add more ice cubes, then drink may be diluted with ice melting, affect mouthfeel.
【The content of the invention】
It is an object of the invention to provide a kind of cooling device higher to liquid cooling efficiency and its control method, control system.
Technical scheme below is provided for this cooling device of the present invention：A kind of cooling device, for reducing the temperature of drinkable liquid, the cooling device includes compressor, condenser, orifice union, evaporimeter, auxiliary evaporator and blower fan, the entrance of condenser described in the outlet of the compressor, the entrance of orifice union described in the outlet of the condenser, the outlet of the orifice union connects respectively the entrance of the evaporimeter by connecting line or connecting line and control element, the entrance of auxiliary evaporator, the entrance of compressor described in the outlet of the evaporimeter, the entrance of compressor described in the outlet of the auxiliary evaporator；The orifice union can control the cold-producing medium circulation of refrigerant flow path between condensator outlet and the entrance of evaporimeter or the entrance of auxiliary evaporator, the cooling device includes the temperature sensor for detecting evaporator temperature parameter, and cooling device detects the temperature parameter for obtaining to control orifice union according to temperature sensor；The cooling device includes drinkable liquid pipeline, the drinkable liquid pipeline has the first heat exchanging pipe, the second heat exchanging pipe being interconnected, first heat exchanging pipe is to be arranged in series with the second heat exchanging pipe, first heat exchanging pipe is located in evaporimeter with being relatively fixed, and second heat exchanging pipe is located in auxiliary evaporator with being relatively fixed.
Invention additionally discloses the control method of above-mentioned cooling device, the cooling device is correspondingly arranged on controller C and the cooling device is controlled, comprises the steps：
S00：Electricity on the cooling device；
S01：Detect whether evaporator temperature parameter T1 meets by temperature sensor S1 to impose a condition, if it is, and exist drink demand in the case of, by the auxiliary evaporator work, to the further cooling of drinkable liquid；If not, lowering the temperature by the evaporator operation, to drinkable liquid, impose a condition until evaporator temperature parameter T1 meets.
Invention additionally discloses a kind of control system of cooling device, for controlling the above cooling device, the control system includes the central processing module for providing control signal, the control signal provided by the central processing module is capable of achieving the control of compressor, blower fan and orifice union to cooling device, stepper drive control module and/or relay that the control system is also arranged including correspondence compressor, the relay of blower fan setting, correspondence orifice union；
The central processing module by input processor can receives input signal and/or the temperature sensor signal and then computing produce the control signal to compressor, blower fan and be sent respectively to respective relay, the control signal for orifice union that computing is produced is sent to into stepper drive control module；
Or the central processing module control information from Master controller can be received and parsed through by input processor, by parsing after for controlling compressor, the control signal of blower fan be sent respectively to respective relay, by parsing after the control signal for controlling orifice union be sent to stepper drive control module and/or relay；
The stepper drive control module is responsible for receiving the control signal that the central processing module comes to orifice union control, and it is supplied to the correspondence coil block to meet the electric current that the central processing module comes to require the control signal of orifice union control, so as to the cold-producing medium circulation of the controllable refrigerant flow path between condensator outlet and evaporimeter or auxiliary evaporator of orifice union；
The central processing module is able to record that or stores the current state information of orifice union.
Compared with prior art, cooling device of the present invention can obtain higher cooling effectiveness by above control method and control system, contact with the first heat exchanging pipe especially by evaporimeter and/or auxiliary evaporator contacts with the second heat exchanger tube, so as to obtain higher cooling effectiveness.
【Description of the drawings】
Fig. 1 is the system connection diagram of first embodiment cooling device；
Fig. 2 is the system connection diagram of another embodiment cooling device；
Fig. 3 is that above cooling device removes schematic perspective view after partial shell, mainly illustrates the position relationship of condenser, blower fan and filter；
Fig. 4 is the second embodiment schematic diagram shown in Fig. 3；
Fig. 5 is the 3rd embodiment schematic diagram shown in Fig. 3；
Fig. 6 is the 4th embodiment schematic diagram shown in Fig. 3；
Fig. 7 is the three-dimensional combination diagram of evaporimeter and the first heat exchanging pipe；
Fig. 8 is the position relationship schematic diagram of the refrigerant line of evaporimeter shown in Fig. 7 and the first heat exchanging pipe；
Fig. 9 is the schematic side view of the refrigerant line of evaporimeter shown in Fig. 7 and the first heat exchanging pipe；
Figure 10 is the three-dimensional combination diagram of evaporimeter and another embodiment of the first heat exchanging pipe；
Figure 11 is the position relationship schematic diagram of the refrigerant line of evaporimeter shown in Figure 10 and the first heat exchanging pipe；
Figure 12 is the three-dimensional combination diagram of auxiliary evaporator and the second heat exchanging pipe；
Figure 13 is the local cross sectional figure of auxiliary evaporator shown in Figure 12 and the second heat exchanging pipe；
Figure 14 is the control system schematic diagram of the above cooling device；
Figure 15 is another embodiment schematic diagram of cooling device control system shown in Figure 14；
Figure 16 is the control method schematic flow sheet of cooling device illustrated above.
【Specific embodiment】
Refer to shown in Fig. 1 to Fig. 2, present embodiment cooling device 100 is used to reduce the temperature of drinkable liquid to setting range, such as produce low temperature Chilled Drinking Water, may also be used for cooling down drinks, fruit juice or other drinkable liquids, below for illustrating as a example by the cooling device for preparing cold water, -1 DEG C to 2 DEG C of Chilled Drinking Water can be produced, can be used to infuse coffee, pulp or other raw materials.
The cooling device 100 is included by connecting line or connecting line and the compressor 1 of other control element connections, condenser 2, throttling arrangement 3, evaporimeter 4, auxiliary evaporator 5, the cooling device also includes the blower fan 6 that correspondence condenser is arranged, the outlet 101 of the compressor connects the entrance 201 of the condenser, the outlet 202 of the condenser connects the entrance 301 of the throttling arrangement, the outlet 302 of the throttling arrangement connects respectively the entrance 401 of the evaporimeter by refrigerant line, the entrance 501 of auxiliary evaporator, the outlet 402 of the evaporimeter connects the entrance 102 of the compressor, the outlet 502 of the auxiliary evaporator connects the entrance 102 of the compressor；The throttling arrangement 3 can control the circulation of refrigerant flow path between condensator outlet and evaporator, auxiliary evaporator import.
In the running of the cooling device 100，The high temperature and high pressure gaseous refrigerant that the compressor 1 is discharged enters condenser 2，The gaseous refrigerant is the liquid refrigerant for having certain degree of supercooling by air setting，Then the liquid refrigerant carries out reducing pressure by regulating flow into throttling arrangement 3，It is changed into entering evaporimeter 4 and/or auxiliary evaporator 5 after two phase cold-producing mediums of low-temp low-pressure，The cold-producing medium for flowing through evaporimeter 4 and/or auxiliary evaporator 5 absorbs heat from water and vaporizes，The evaporimeter and/or auxiliary evaporator 5 are hot from the heat absorption of drinkable liquid pipeline side using metal heat-conducting，For reducing the temperature of drinkable liquid，The gaseous refrigerant for flowing out the evaporimeter and/or auxiliary evaporator 5 enters back into compressor 1 through air intake duct，Through compressor work compression，Compressor outlet is discharged the gaseous refrigerant of HTHP and enters back into condenser 2，Whole process is constantly circulated，Until the outlet temperature of drinkable liquid meets requiring，Specifically the scope of outlet temperature need to be controlled in non-freezing temperature，Concrete such as 0 DEG C to 2 DEG C，Temperature can be at 0 DEG C to 2 DEG C in the case of drinkable liquid is non-icing，The drinkable liquid outlet temperature specifically can be set according to customer demand，Readily available low temperature Chilled Drinking Water，Used with directly drinking or mixing other raw materials，It is relatively good to make to drink mouthfeel.The cold-producing medium may be selected R290 type cold-producing mediums, R600a type cold-producing mediums, R134a type cold-producing mediums, R410A type cold-producing mediums, R407C types cold-producing medium or R22 type cold-producing mediums, security performance is higher, meet the market trend of higher and higher environmental requirement, the condenser can be the small size heat exchanger types such as micro-channel condenser, fin-tube heat exchanger, the charging amount of cold-producing medium can be preferably controlled in allowable value, avoid arranging hidden danger, the condensation vessel volume is relatively small, save space.Surface temperature parameter T1 of the evaporimeter is controlled at 1 DEG C -10 DEG C, such as 1 DEG C, 2 DEG C, 3 DEG C and arbitrary temp in the range of other, specifically surface temperature parameter T1 of the evaporimeter can be controlled at 1 DEG C to 10 DEG C, meeting cooling requirement can also avoid liquid in drinkable liquid pipeline from freezing, also avoid evaporator surface frosting.
Incorporated by reference to shown in Fig. 3 to Fig. 6，The cooling device 100 has the air inlet 103 communicated with surrounding air、Air outlet 104，The air inlet 103、Air duct 105 can be formed between air outlet 104，The air duct 105 can be relative closure air channel，So that air carries out heat exchange through condenser with the cold-producing medium in condenser as far as possible，The drive environment air of the blower fan 6 is from air inlet air intake、From air outlet，The both sides of the condenser 2 are respectively windward side 21、Air side 22，The cooling device is disposed with filter 106 in condenser windward side side，Windward side or air side arrangement of the blower fan 6 near the condenser 2，Blower fan 6 starts and forms relative malleation or negative pressure air environment，Pressure reduction can drive air to enter along air inlet、Flow through filter 106、Discharge from air outlet 104 again after condenser 2，The condenser 2 is exchanged heat to realize radiating with air during air contacts with condenser 2，Air passes through as much as possible from the effective heat exchange area of condenser，Reduce wind energy loss，Lift the efficiency that air absorbs heat from condenser；Further, the condenser 2 can be arranged near air inlet 103, and the blower fan 6 is arranged near air outlet 104, so as to the air entered along air inlet can be uniformly through condenser 2, the efficiency that air absorbs heat from condenser is lifted, and blower fan can be smoothly through and be then exhausted from outside cooling device；Specifically, visual angle as shown in Figure 3, the air outlet 104 is located at top side, and the air inlet and filter 106 are located at rear side, and condenser 2 is vertically placed in air duct 105；Or as shown in Figure 4 visual angle, the air inlet 103 is located at top side, and the air outlet 104 is located at rear side, and condenser 2 is vertically placed in air duct 105；Or as shown in Figure 5 visual angle, the air outlet 104 is located at the left and right sides or at least side, and the air inlet and filter 106 are located at rear side, and condenser 2 is vertically placed in air duct 105；Either as shown in fig. 6, the air inlet 103 is located at the left and right sides or at least side, the air outlet and filter 106 are located at rear side, and condenser 2 is vertically placed in air duct 105；Herein it should be noted that the invention is not restricted to above-mentioned cited arrangement mode.
Incorporated by reference to Fig. 1, shown in Fig. 2 and Fig. 7 to Figure 11, the cooling device includes drinkable liquid pipeline 7, the drinkable liquid pipeline has the first heat exchanging pipe 71 being interconnected, second heat exchanging pipe 72, first heat exchanging pipe 71 is to be arranged in series with the second heat exchanging pipe 72, first heat exchanging pipe is located in evaporimeter with being relatively fixed, first heat exchanging pipe 71 carries out heat exchange with the directly contact of evaporimeter 4, second heat exchanging pipe 72 is located in auxiliary evaporator with being relatively fixed, second heat exchanging pipe and auxiliary evaporator can directly contact carry out heat exchange, or heat exchange is realized by the mediate contact of heat-conducting medium layer.After compressor operating, the drinkable liquid pipeline 7 can first pass through the first heat exchanging pipe 71 and be exchanged heat with evaporimeter 4, it is further continued for carrying out secondary heat exchange cooling with auxiliary evaporator 5 by the second heat exchanging pipe 72, this staged cooling, when preventing temperature too low there is frost-heaving deformation in evaporimeter, it is to avoid damage evaporation structure；Specifically, evaporator temperature parameter T1 is 1 DEG C to 10 DEG C, and drinkable liquid outlet temperature T2 at drinkable liquid tube outlet 702 can be adjusted as needed as -1 DEG C to 2 DEG C or such as arbitrary value in 0 DEG C to 2 DEG C, concrete such as 0 DEG C, 1 DEG C, 2 DEG C, temperature T2 is drinkable liquid outlet temperature after drinkable liquid exchanges heat with auxiliary evaporator 5, reduce drinkable liquid outlet temperature T2 out of drinkable liquid tube outlet 702 as far as possible under the premise of freezing point is not less than, mouthfeel is drunk in lifting；Evaporator temperature parameter T1 need to be more than or equal to drinkable liquid outlet temperature T2, prevent fluid temperature parameter T1 at evaporimeter out too low and cause drinkable liquid frozen, such as fixedly embedded the first heat exchanging pipe 71, refrigerant line 42, can avoid causing the first heat exchanging pipe 71, refrigerant line 42 and heat conduction substrate 41 to deform and rupture because of the drinkable liquid freezing and expansion.The cooling device is connected with electric control valve 8 on the drinkable liquid pipeline between the import 701 of drinkable liquid pipeline and the first heat exchanging pipe, the electric control valve can turn on or block the liquid communication in drinkable liquid pipeline, specifically, the electric control valve 8 is capable of achieving to close or open and adjust the circulation in liquid line according to the control signal that controller sends.The cooling device includes the temperature sensor S1 for detecting evaporator temperature, and evaporator temperature parameter T1 that cooling device is obtained according to temperature sensor S1 detections is adjusted controlling orifice union.
The evaporimeter 4 includes heat conduction substrate 41, the refrigerant line 42 of the fixedly embedded heat conduction substrate, the heat conduction substrate 41 is that aluminium alloy or the preferable material of other thermal conductivity are formed by casting, specifically the refrigerant line 42 and others connecting refrigerant lines Lu Junke are made using copper pipe, and copper pipe surface can adopt coating anti-corrosion；First heat exchanging pipe 71 is the Stainless Steel pipeline for meeting safe for drinking requirement, to ensure drinking safety；The entrance 401 of the cold-producing medium of the evaporimeter 4 extends outside heat conduction substrate with outlet 402，First heat exchanging pipe 71 of the drinkable liquid pipeline is embedded in and is fixed in the heat conduction substrate 41，The cladding heat exchanging pipe 71 of refrigerant line 42 and first substantially of the heat conduction substrate 41，Include two-way pipeline in the heat conduction substrate 41，It is all the way wherein the first heat exchanging pipe 71 of drinkable liquid pipeline 7，It is all the way the refrigerant line 42 of evaporimeter，In manufacture process，The heat exchanging pipe 71 of refrigerant line 42 and first that advance bending is coiled is put into into die cavity，Pour into liquid aluminium alloy or the preferable liquid metal of other thermal conductivity or alloy material after fusing，Then through cooling and solidifying，The heat exchanging pipe 71 of refrigerant line 42 and first can be embedded in and be fixed in the heat conduction substrate 41 for gradually solidifying，Realize that three is mutually combined fixation by cast molding.The refrigerant line 42 is contacted with the first heat exchanging pipe 71 by heat conduction substrate 41, both realize heat transfer by heat conduction substrate 41, can both relative increases heat exchange area, specifically the heat exchanging pipe 71 of refrigerant line 42 and first respectively with the directly contact of heat conduction substrate 41, the refrigerant line is not directly contacted with the first heat exchanging pipe, and the cold-producing medium that can avoid refrigerant line pollutes the first heat exchanging pipe.
The drinkable liquid pipeline also has the secondary outlet 703 for extending heat conduction substrate, and this outlet can be extended out outside heat conduction substrate with drinkable liquid pipeline import 701；The evaporimeter 4 contacts with first heat exchanging pipe 71 and realizes heat exchange, than as shown in Figure 7 to 9, the refrigerant line 42 is coiled in the periphery of the first heat exchanging pipe 71, that is, the first heat exchanging pipe 71 for the drinkable liquid that circulates is located at refrigerant line inside region, the now entrance 401 of the cold-producing medium of the evaporimeter 4 and outlet 402 may be provided at the same side of heat conduction substrate 41 with drinkable liquid pipeline import 701, secondary outlet 703, be conveniently manufactured in type；The other embodiment as shown in Figure 10 to Figure 11, the refrigerant line 42 and the first heat exchanging pipe 71 are in heat conduction substrate 41 with coiled fashion into multiple rows of, the further cross arrangement of 42 and first heat exchanging pipe of refrigerant line 71, can both relative increases heat exchange area, the now entrance 401 of the evaporator refrigerant and the outlet 402, import 701 of drinkable liquid pipeline, secondary outlet 703 may be arranged at respectively the not homonymy of heat conduction substrate, and arrangement is optimized with reference to space beneficial to refrigerant line and drinkable liquid pipeline；It should be noted that the coiled fashion of above-mentioned two-way pipeline is not limited to coiled fashion discussed above.The temperature sensor S1 is fixed on the heat conduction substrate outer surface of evaporimeter，The temperature sensor is used to detect the heat conduction substrate surface temperature parameter of evaporimeter，Can indirect detection drinkable liquid temperature value、Or indirect detection is calculated drinkable liquid temperature changing trend，Can determine whether whether drinkable liquid temperature reaches desired temperature according to testing result，The desired temperature can be specified for temperature ranges or a certain threshold temperature，Certainly the drinkable liquid temperature changing trend for being obtained according to detection also can in advance judge whether drinkable liquid temperature will reach specified for temperature ranges or a certain threshold temperature，Avoid the error of drinkable liquid real time temperature and heat conduction substrate surface temperature，The evaporimeter 4 can also arrange heat-insulation layer (not shown) outside heat conduction substrate 41，The heat-insulation layer is coated and fixed outside heat conduction substrate and temperature sensor S1，And the heat-insulation layer is made up of insulating materials，Take into account insulation and insulate，So that heat conduction substrate keeps relative low temperature，Temperature sensor S1 detection error probabilities are reduced as far as possible.
Second heat exchanging pipe 72 has the secondary import 704 communicated with above-mentioned outlet, and this import 704 is arranged in the opposite end of the second heat exchanging pipe 72 with drinkable liquid tube outlet 702.Please continue to refer to shown in Figure 12 to Figure 13, second heat exchanging pipe 72 and the directly contact of auxiliary evaporator 5, or both heat transfer is carried out by the mediate contact of heat-conducting medium layer, drinkable liquid temperature can further be reduced, wherein the second heat exchanging pipe 72 is the Stainless Steel pipeline for meeting safe for drinking requirement, to ensure drinking safety, the auxiliary evaporator 5 includes refrigerant heat exchanger pipe 51, and the refrigerant heat exchanger pipe 51 can be made up of metallic copper pipe；Specifically, the outside of second heat exchanger tube 72 of the refrigerant heat exchanger pipe 51 of the auxiliary evaporator 5 and drinkable liquid pipeline is contacted or both by the heat-conducting medium layer mediate contact for face, along the axially extending direction of second heat exchanging pipe 72, the refrigerant heat exchanger pipe is fastened in the outer wall surface of the second heat exchanging pipe 72 of drinkable liquid pipeline, the refrigerant inlet 501 of auxiliary evaporator near the institute of above-mentioned drinkable liquid tube outlet 702 at one end, extend through winding, the refrigerant outlet 502 of auxiliary evaporator is then arranged in the other end away from drinkable liquid tube outlet 702, so that cold-producing medium and drinkable liquid substantially reflux type heat exchange, the heat exchange efficiency of auxiliary evaporator can be lifted.Further, heat-conducting medium layer 52 is provided between the outside wall surface of the second heat exchanger tube 72 of the refrigerant heat exchanger pipe outer wall face of the auxiliary evaporator 5 and drinkable liquid pipeline, such as can be coated with heat conduction silicone, to strengthen both heat transfer efficiencys；The auxiliary evaporator 5 is provided with insulation heat preservation layer (not shown) with the outer layer of the second heat exchanger tube 72 of drinkable liquid pipeline.
The refrigerant heat exchanger pipe 51 of the auxiliary evaporator can be fastened in a spiral manner in the outer wall surface of the second heat exchanging pipe 72, the outside of further second heat exchanging pipe 72 can also form the location indentations (not shown) of spiral extension, and the refrigerant heat exchanger pipe 51 is at least partially housed in the location indentations；The shape of cross section of the refrigerant heat exchanger pipe is substantially in D types, the refrigerant heat exchanger pipe 51 has with second heat exchanging pipe 72 or to heat-conducting medium into the contact surface 511 for contacting, further the contact surface fits with the location indentations 721 of the second heat exchanging pipe of the drinkable liquid pipeline and contacts, both relative increases contact area, strengthens heat transfer effect.
As shown in Figure 1, the throttling arrangement includes throttling element 31, the first regulating valve 32 and the second regulating valve 33, wherein throttling element can reducing pressure by regulating flow, be further able to adjust the refrigerant flow size of refrigerant flow path between the condensator outlet and evaporator, auxiliary evaporator import；The regulating valve 33 of first regulating valve 32 and second can be flow control valve, can adjust respectively this two-way refrigerant flow or conducting, block cold-producing medium circulation, the regulating valve 33 of certain first regulating valve 32 and second can also only be switch valve, first switch valve and second switch valve are such as respectively, the cold-producing medium for turning on or blocking refrigerant flow path between the condensator outlet and evaporator, auxiliary evaporator import circulates.The entrance of the throttling element connects the outlet 202 of condenser, the outlet of the throttling element is respectively communicated with the entrance of the first regulating valve and the entrance of the second regulating valve, first regulating valve 32 is arranged on the stream between throttling element outlet and evaporator inlet 401, first regulating valve 32 can turn on or block the cold-producing medium circulation of refrigerant flow path between throttling element outlet and evaporator inlet, second regulating valve 33 is arranged on the stream between throttling element outlet and auxiliary evaporator entrance 501, second regulating valve 33 can turn on or block the cold-producing medium circulation of refrigerant flow path between throttling element outlet and evaporator inlet.Specifically, throttling element 31 may be selected electric expansion valve or heating power expansion valve or capillary in present embodiment, first regulating valve 32 and the second regulating valve 33 can be with the magnetic valve for completely closing function, the electric expansion valve can receive the control signal that corresponding controller C is provided with magnetic valve, realize that each specific action is adjusted according to the signal of the controller.
Certainly, in other embodiments, as shown in Figure 2, the throttling arrangement 3 includes the throttling regulating part 35 of first throttle regulating part 34 and second, wherein first, the entrance of the second throttling regulating part is respectively communicated with the outlet of condenser, the entrance of evaporimeter described in the outlet of the first throttle regulating part, the entrance of the outlet auxiliary evaporator of the second throttling regulating part, the first throttle regulating part being capable of reducing pressure by regulating flow, further also can turn on, block the cold-producing medium circulation of refrigerant flow path between condensator outlet and evaporator inlet, further can adjust refrigerant flow size, the second throttling regulating part being capable of reducing pressure by regulating flow, further also being capable of adjusting refrigerant flow rate, and/or conducting, block the cold-producing medium circulation of refrigerant flow path between condensator outlet and auxiliary evaporator entrance；Specifically, the capillary that the first, second flow restriction control part may be selected the electric expansion valve with closing function or the combination that is in series is arranged and magnetic valve or heating power expansion valve and magnetic valve, wherein electric expansion valve has closing function and throttling function, magnetic valve need to have completely close function, the control signal that correspondence controller C is provided can be received, realizes that each specific action is adjusted according to the signal of the controller.
Incorporated by reference to Figure 14, shown in Figure 15, control system for controlling the cooling device includes controller noted above C, the control system includes central processing module 600, the central processing module 600 provides control signal for cooling device, the control signal provided by the central processing module is capable of achieving the compressor 1 to cooling device, the control of blower fan 6 and throttling arrangement 3, the throttling arrangement 3 is using the throttling element 31 of electric expansion valve, and using first regulating valve 32 and the second regulating valve 33 of magnetic valve, or the throttling arrangement 3 is using the first throttle part 34 of electric expansion valve, second throttling element 35；The control system also includes the relay that correspondence compressor, blower fan are arranged, specifically, as in Fig. 1, Figure 15 illustrated embodiment, the stepper drive control module 603 that correspondence throttling element (electric expansion valve) 31 can arrange stepper drive control module 602, correspondence electric control valve 8 is arranged, the relay that the first regulating valve of correspondence, the second regulating valve are arranged；Or as in Fig. 2, Figure 15 illustrated embodiment, two electric expansion valves 34,35 of correspondence are respectively provided with stepper drive control module 604,605；
The central processing module 600 by input processor 601 can receives input signal and/or temperature sensor signal and then computing produce the control signal to compressor 1, blower fan 6 and be sent to respective relay；The control signal for throttling element (electric expansion valve) 31 that computing is produced is sent to into above-mentioned stepper drive control module 602, the control signal for the first regulating valve 32, the second regulating valve 33 that computing is produced is sent to correspondence relay；Or the control signal for two electric expansion valves 34,35 that computing is produced is sent to into respective stepper drive control module 604,605；
Or, the central processing module 600 can receive and parse through control information from Master controller by input processor 601, by parsing after for controlling compressor 1, the control signal of blower fan 6 be sent respectively to respective relay, by parsing after the control signal for throttling element (electric expansion valve) 31 be sent to above-mentioned stepper drive control module 602, by parsing after the control signal for the first regulating valve 32, the second regulating valve 33 be sent to correspondence relay；Or by parsing after the control signal for two electric expansion valves 34,35 be sent to respective stepper drive control module 604,605；
The stepper drive control module is responsible for receiving the control signal that the central processing module comes to throttling arrangement control, and it is supplied to the correspondence coil block to meet the electric current that the central processing module comes to require the control signal of throttling arrangement control, the coil block of throttling arrangement controls the circulation of refrigerant flow path between condensator outlet and evaporimeter or auxiliary evaporator according to the electric current；
The central processing module 600 can also record or store the current state information of throttling arrangement 3, specifically the current state information can be the current opening information and/or current location information, the current location information of first, second regulating valve of electric expansion valve 31, or the current opening information and/or current location information of electric expansion valve 34,35.
With reference to shown in Figure 16, the cooling device can adopt following control method, cooling device is controlled especially by the controller C being correspondingly arranged, is controlled according to whether evaporator temperature parameter T1 reaches design temperature parameter T, the control method comprises the steps：
S00：Electricity on the cooling device；
S01：Detect whether evaporator temperature parameter T1 meets by temperature sensor S1 to impose a condition, if it is, and exist drink demand in the case of, by the auxiliary evaporator work, to the further cooling of drinkable liquid；If not, lowering the temperature by the evaporator operation, to drinkable liquid, impose a condition until evaporator temperature parameter T1 meets.
Step S01 further includes situations below：
When evaporator temperature parameter T1 reaches design temperature parameter T and demand is drunk in presence, the controller is adjusted by controlling orifice union so that the refrigerant flow path between the auxiliary evaporator and condensator outlet realizes conducting, the refrigerant flow path between the evaporator inlet and condensator outlet to block state.
When evaporator temperature parameter T1 is not up to design temperature parameter T, the controller is adjusted by controlling orifice union so that the refrigerant flow path between the evaporimeter and condensator outlet realizes conducting, the refrigerant flow path between the auxiliary evaporator entrance and condensator outlet to block state.
More specifically, the control method of cooling device described in present embodiment is realized by following steps：
S00：Electricity on the cooling device；
S01：Detect whether evaporator temperature parameter T1 reaches design temperature parameter T by the temperature sensor S1 of evaporimeter setting, if it is, execution step S21, if not, execution step S31；
S21：Desired signal is drunk in reading, determines whether the demand of drinking, if it is, performing S22；If not, execution step S26；
S22：Blower fan is opened, afterwards execution step S23；
S23：The orifice union is adjusted, and according to circumstances judges and control the refrigerant flow path between the auxiliary evaporator and condensator outlet to realize conducting, the refrigerant flow path between the evaporator inlet and condensator outlet as the state of blocking；Execution step S24 afterwards；
S24：Control the compressor to open, lower the temperature drinkable liquid；Execution step S25 afterwards；
S25：The liquid-inlet for controlling drinkable liquid pipeline is open mode, and the liquid desired value that goes out provided according to controller adjusts drinkable liquid piping flow, afterwards execution step S21；
S26：The liquid-inlet of control drinkable liquid pipeline is closed, stops water inlet；And control compressor shutdown, fan parking, orifice union close；Execution step S27 afterwards；
S27：Judge whether power-off, if it is, execution step S00；If not, power-off terminates.
S31：Blower fan is opened, afterwards execution step S32；
S32：The orifice union is adjusted, and controls the realization conducting of the refrigerant flow path between the evaporator inlet and condensator outlet, and now the refrigerant flow path between the auxiliary evaporator entrance and condensator outlet is to block state；Execution step S33 afterwards；
S33：Control the compressor to open, lower the temperature drinkable liquid, execution step S01 after operation a period of time.
The temperature parameter T1 is temperature value or temperature changing trend, and design temperature parameter T can be arbitrary temperature value or threshold temperature in setting range.In the step of above-mentioned control method S25, by another temperature sensor S2 being arranged at drinkable liquid tube outlet 702, the controller obtains drinkable liquid outlet temperature T2 according to temperature sensor S2 detections, with reference to evaporator temperature parameter T1 that said temperature sensor S1 detections are obtained, by being calculated out liquid desired value, there is provided this goes out liquid desired value and is specifically adjusted to electric control valve 8.
The cooling device is relatively fixed by evaporimeter with the first heat exchanging pipe, wherein described refrigerant line is exchanged heat with the first heat exchanging pipe by heat conduction substrate, auxiliary evaporator is relatively fixed with the second heat exchanger tube, both directly contacts realize heat exchange by the mediate contact of heat-conducting medium layer, the temperature of drinkable liquid can be gradually reduced, overall heat exchange area is relatively large, and the cooling device can obtain higher cooling effectiveness；The control system and control method of the cooling device, whether reach whether sets target and user side have the demand of drinking with the size for going out liquid aim parameter specifically to be adjusted according to outlet temperature, corresponding difference control signal is provided by controller, realize to compressor, blower fan, orifice union concrete control, so that cooling device can gradually reduce drinkable liquid outlet temperature, obtain higher cooling effectiveness, energy and the user's requests needed for element such as the compressor, blower fan is caused to match as much as possible.
It should be noted that：Above example is merely to illustrate the present invention and not limits technical scheme described in the invention, for example to " front ", " afterwards ", " left side ", " right side ", " on ", D score isotropy is defined, although this specification is with reference to the above embodiments pair present invention has been detailed description, but, it will be understood by those within the art that, person of ordinary skill in the field still can be mutually combined to the present invention, modification or equivalent, and all technical schemes and its improvement without departing from the spirit and scope of the present invention, all should cover in scope of the presently claimed invention.
Claims (13)
1. a kind of cooling device, for reducing the temperature of drinkable liquid, the cooling device includes compressor, condenser, orifice union, evaporimeter, auxiliary evaporator and blower fan, the entrance of condenser described in the outlet of the compressor, the entrance of orifice union described in the outlet of the condenser, the outlet of the orifice union connects respectively the entrance of the evaporimeter by connecting line or connecting line and control element, the entrance of auxiliary evaporator, the entrance of compressor described in the outlet of the evaporimeter, the entrance of compressor described in the outlet of the auxiliary evaporator；The orifice union can control the cold-producing medium circulation of refrigerant flow path between condensator outlet and the entrance of evaporimeter or the entrance of auxiliary evaporator, the cooling device includes the temperature sensor for detecting evaporator temperature parameter, and cooling device detects the temperature parameter for obtaining to control orifice union according to temperature sensor；
The cooling device includes drinkable liquid pipeline, the drinkable liquid pipeline has the first heat exchanging pipe, the second heat exchanging pipe being interconnected, first heat exchanging pipe is to be arranged in series with the second heat exchanging pipe, first heat exchanging pipe is located in evaporimeter with being relatively fixed, and second heat exchanging pipe is located in auxiliary evaporator with being relatively fixed.
2. cooling device as claimed in claim 1, it is characterised in that：The evaporimeter includes heat conduction substrate, the refrigerant line of the fixedly embedded heat conduction substrate, the temperature sensor is relatively fixed in heat conduction substrate outer surface, in the fixedly embedded heat conduction substrate of first heat exchanging pipe, the refrigerant line is contacted with first heat exchanging pipe by heat conduction substrate, the entrance of the evaporimeter extends outside heat conduction substrate with outlet, and heat transfer is carried out by heat conduction substrate between the refrigerant line and the first heat exchanging pipe of drinkable liquid pipeline.
3. cooling device as claimed in claim 2, it is characterised in that：The evaporimeter arranges heat-insulation layer outside heat conduction substrate, the import of the drinkable liquid pipeline extends from first heat exchanging pipe one end to outside evaporimeter, the outlet of the drinkable liquid pipeline extends from second heat exchanging pipe one end to outside auxiliary evaporator, the cooling device is additionally provided with electric control valve, the electric control valve is arranged in the drinkable liquid pipeline between the import of drinkable liquid pipeline and the first heat exchanging pipe, and the electric control valve can open drinkable liquid pipeline and adjust the fluid flow of the drinkable liquid pipeline.
4. the cooling device as described in claim 1 or 2 or 3, it is characterised in that：The auxiliary evaporator includes refrigerant heat exchanger pipe, the second heat exchanging pipe outside of the refrigerant heat exchanger pipe and the drinkable liquid pipeline contacts or both for face and passes through heat-conducting medium layer mediate contact, along the axially extending direction of second heat exchanging pipe, the refrigerant heat exchanger pipe is wrapped in the outside of the second heat exchanging pipe of drinkable liquid pipeline, and the refrigerant inlet of the auxiliary evaporator is arranged at one end near the outlet of above-mentioned drinkable liquid pipeline.
5. cooling device as claimed in claim 4, it is characterised in that：The refrigerant heat exchanger pipe of the auxiliary evaporator is relatively fixed in the outside of the second heat exchanging pipe, the shape of cross section of the refrigerant heat exchanger pipe is substantially in D types, refrigerant heat exchanger pipe inner side forms contact surface, and the second heat exchanging pipe outside of the contact surface and the drinkable liquid pipeline or heat-conducting medium layer fit and contact.
6. cooling device as claimed in claim 1, it is characterised in that：The orifice union includes throttling element, first regulating valve and the second regulating valve, the entrance of the throttling element connects the outlet of condenser, the outlet of the throttling element is respectively communicated with the entrance of the first regulating valve and the entrance of the second regulating valve, first regulating valve is arranged on the refrigerant flow path between throttling element outlet and evaporator inlet, first regulating valve can control the cold-producing medium circulation of refrigerant flow path between throttling element outlet and evaporator inlet, second regulating valve is arranged on the refrigerant flow path between throttling element outlet and auxiliary evaporator entrance, second regulating valve can control the cold-producing medium circulation of refrigerant flow path between throttling element outlet and evaporator inlet.
7. cooling device as claimed in claim 6, it is characterised in that：The throttling element is electric expansion valve, and first regulating valve and the second regulating valve are the magnetic valve with closing function, and the electric expansion valve, the first regulating valve can receive the control signal that the controller of cooling device is provided with the second regulating valve.
8. cooling device as claimed in claim 1, it is characterised in that：The orifice union includes first throttle part and the second throttling element, the entrance of first, second throttling element is respectively communicated with the outlet of condenser, the entrance of evaporimeter described in the outlet of the first throttle part, the entrance of the outlet auxiliary evaporator of the second throttling element, the first throttle part can control the cold-producing medium circulation of refrigerant flow path between condensator outlet and evaporator inlet, and second throttling element can control the cold-producing medium circulation of refrigerant flow path between condensator outlet and auxiliary evaporator entrance.
9. cooling device as claimed in claim 8, it is characterised in that：The first throttle part is electric expansion valve or the capillary being arranged in series and the heating power expansion valve for having the magnetic valve for completely closing function or being arranged in series and has the magnetic valve for completely closing function, and second throttling element is electric expansion valve or the capillary being arranged in series and the heating power expansion valve for having the magnetic valve for completely closing function or being arranged in series and has the magnetic valve for completely closing function.
10. cooling device as claimed in claim 1 or 2, it is characterised in that：The cooling device has air inlet, the air outlet communicated with surrounding air, the blower fan drive environment air is from air inlet air intake, from air outlet, the condenser both sides are respectively windward side, air side, the cooling device is disposed with filter, windward side or air side arrangement of the blower fan near the condenser in condenser windward side side.
A kind of 11. control methods of cooling device, the cooling device is the cooling device described in any one of claim 1-10, and the cooling device is correspondingly arranged on controller C and the cooling device is controlled, comprises the steps：
S00：Electricity on the cooling device；
S01：Detect whether evaporator temperature parameter T1 meets by temperature sensor S1 to impose a condition, if it is, and exist drink demand in the case of, by the auxiliary evaporator work, to the further cooling of drinkable liquid；If not, lowering the temperature by the evaporator operation, to drinkable liquid, impose a condition until evaporator temperature parameter T1 meets.
The control method of 12. cooling devices as claimed in claim 11, it is characterised in that：Step S01 includes situations below：
When evaporator temperature parameter T1 reaches design temperature parameter T and demand is drunk in presence, the controller is adjusted by controlling orifice union so that the refrigerant flow path between the auxiliary evaporator and condensator outlet realizes conducting, the refrigerant flow path between the evaporator inlet and condensator outlet to block state；
When evaporator temperature parameter T1 is not up to design temperature parameter T, the controller is adjusted by controlling orifice union so that the refrigerant flow path between the evaporimeter and condensator outlet realizes conducting, the refrigerant flow path between the auxiliary evaporator entrance and condensator outlet to block state.
A kind of 13. control systems of cooling device, for controlling the cooling device described in any one of claim 1-10, the control system includes the central processing module for providing control signal, the control signal provided by the central processing module is capable of achieving the control of compressor, blower fan and orifice union to cooling device, stepper drive control module and/or relay that the control system is also arranged including correspondence compressor, the relay of blower fan setting, correspondence orifice union；
The central processing module by input processor can receives input signal and/or the temperature sensor signal and then computing produce the control signal to compressor, blower fan and be sent respectively to respective relay, the control signal for orifice union that computing is produced is sent to into stepper drive control module；
Or the central processing module control information from Master controller can be received and parsed through by input processor, by parsing after for controlling compressor, the control signal of blower fan be sent respectively to respective relay, by parsing after the control signal for controlling orifice union be sent to stepper drive control module and/or relay；
The stepper drive control module is responsible for receiving the control signal that the central processing module comes to orifice union control, and it is supplied to the correspondence coil block to meet the electric current that the central processing module comes to require the control signal of orifice union control, so as to the cold-producing medium circulation of the controllable refrigerant flow path between condensator outlet and evaporimeter or auxiliary evaporator of orifice union；
The central processing module is able to record that or stores the current state information of orifice union.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510731075.1A CN106642842A (en) | 2015-10-30 | 2015-10-30 | Cooling device and control method and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510731075.1A CN106642842A (en) | 2015-10-30 | 2015-10-30 | Cooling device and control method and system thereof |
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| CN106642842A true CN106642842A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510731075.1A Pending CN106642842A (en) | 2015-10-30 | 2015-10-30 | Cooling device and control method and system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470564A (en) * | 2020-05-22 | 2020-07-31 | 清华大学 | Evaporation equipment and method with direct contact heat transfer and indirect contact heat transfer coupled |
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Effective date of registration: 20191030 Address after: 310018 289-1, No.12 Baiyang street, Hangzhou Economic and Technological Development Zone, Zhejiang Province Applicant after: Sanhua Micro Channel Heat Exchanger Inc. Address before: 310018 three flower Research Institute, No. 12, 289-3 Avenue, Hangzhou, Zhejiang, Jianggan District Applicant before: HANGZHOU SANHUAJIA ELECTROTHERMAL MANAGEMENT SYSTEM CO., LTD. |
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