CN106871541A - The control method of refrigeration plant and reduction coolant noise - Google Patents
The control method of refrigeration plant and reduction coolant noise Download PDFInfo
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- CN106871541A CN106871541A CN201710079009.XA CN201710079009A CN106871541A CN 106871541 A CN106871541 A CN 106871541A CN 201710079009 A CN201710079009 A CN 201710079009A CN 106871541 A CN106871541 A CN 106871541A
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- Prior art keywords
- evaporator
- valve body
- refrigeration
- outlet end
- refrigeration plant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Refrigeration plant and the control method of reduction coolant noise that the present invention is provided, the first valve body is arranged between evaporator and condenser in refrigeration plant, when compressor is stopped or when refrigerating circuit is stopped, after closing the first valve body, can cause that the refrigerant inside evaporator cannot be back in condenser, the problem of the coolant noise that the refrigerant return inside evaporator is produced to condenser is not resulted in, the Jing Yin ability of refrigeration plant is improved, Consumer's Experience is improved；On the other hand, the refrigerant when refrigeration plant that the present invention is provided can be stopped with compressor or refrigerating circuit is stopped in evaporator is prevented is back among condenser, ensure that pressure value everywhere in the temperature value and refrigeration plant in evaporator, when setting of freezing needs to be again turned on, the effect of rapid cooling can be realized, and pressure system need not be re-established, and the energy loss of refrigeration plant has been saved, improve the competitiveness of product in market.
Description
Technical field
The present invention relates to household appliance technical field, more specifically, it is related to a kind of refrigeration plant and reduces the control of coolant noise
Method processed.
Background technology
At present, in the wind cooling refrigerator of connection in series-parallel dual system frequency-changeable compressor in the related art, when a certain refrigerating circuit
During shutdown, due to pressure difference present in running, refrigerant can be entered into evaporator by high pressure condensation segment, when the temperature of casing
Raise refrigerant evaporation in evaporator and cause pressure rise, evaporation lateral pressure is gradually risen, and condensation lateral pressure is gradually reduced, and works as pressure
Condenser can be back to due to storing substantial amounts of refrigerant in evaporator during balance, fortune in the evaporator in corresponding refrigerating circuit
The refrigerant stored during row can produce the phenomenon of backflow, thus produce coolant noise so that the noise of refrigerator becomes big, influences ice
The overall performance and Consumer's Experience of case.
Therefore, design it is a kind of simple for structure, when refrigerating circuit is shut down inside evaporator in refrigerant will not produce
The refrigeration plant of backflow and the control method of reduction coolant noise turn into problem demanding prompt solution.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.
Therefore, it is an advantage of the invention to provide a kind of refrigeration plant.
Two purposes of the invention are, there is provided a kind of control method for reducing coolant noise.
To achieve the above object, embodiment provides a kind of refrigeration plant, refrigeration plant bag according to a first aspect of the present invention
Include at least one evaporator, compressor, condenser and at least one capillary：Set between at least one evaporator and condenser
It is equipped with the first valve body so that the refrigerant inside at least one evaporator cannot be back in condenser.
The refrigeration plant that the present invention is provided includes at least one evaporator, compressor, condenser and at least one capillary,
First valve body is arranged between at least one evaporator and condenser, when compressor is stopped or refrigerating circuit stop work
When making, after closing the first valve body, can cause that the refrigerant inside at least one evaporator cannot be back in condenser, not result in
The problem of the coolant noise that the refrigerant return inside evaporator is produced to condenser, improves the Jing Yin ability of refrigeration plant, carries
Consumer's Experience is risen；On the other hand, the refrigeration plant that the present invention is provided can be stopped with compressor or refrigerating circuit stops
During work among the refrigerant in preventing evaporator is back to condenser, it is ensured that temperature value and refrigeration in evaporator set
Pressure value in standby everywhere, when setting of freezing needs to be again turned on, it is possible to achieve the effect of rapid cooling, and without as related
Need to re-establish pressure system in technology, saved the energy loss of refrigeration plant, improve the competitiveness of product in market.
In addition, the refrigeration plant provided according to the above embodiment of the present invention also has following additional technical feature：
In any of the above-described technical scheme, it is preferable that the first valve body is check valve.
In the technical scheme, the first valve body is set to check valve, and direction only to allow to be flowed into from condenser end
To evaporator end, in refrigeration plant stable operation, refrigerant can be with the smooth check valve that flows through without producing or producing very little
Pressure drop, influences smaller to the stable operation of refrigeration plant built-in system；When refrigeration plant stops freezing, now due to check valve
There is refrigerant cannot be back in condenser, therefore will not produce refrigerant return noise；Additionally, due to evaporation after setting check valve
The a large amount of liquid refrigerants of device memory storage, therefore temperature in refrigeration plant raises more slow, therefore can extend downtime, drops
Low energy consumption；Finally, when refrigeration plant this unlatching again, a large amount of refrigerants are stored in evaporator, therefore after compressor start, so that it may
To be drawn into the refrigerant of cryogenic high pressure, increase the flow of refrigerant during this.
In any of the above-described technical scheme, it is preferable that the quantity of at least one evaporator is three, respectively refrigeration evaporation
Device, variable temperature evaporator and refrigerating evaporator, and the quantity of capillary and the quantity of evaporator are identical, respectively the first capillary,
Second capillary and three capillary, and it is separately positioned on the arrival end of refrigeration evaporator, variable temperature evaporator and refrigerating evaporator；
Wherein, form shunt circuit between refrigeration evaporator and variable temperature evaporator, refrigerating evaporator respectively with refrigeration evaporator and alternating temperature
Series loop is formed between evaporator.
In the technical scheme, the refrigerating circuit in refrigeration plant is set to connection in series-parallel loop, by evaporator and capillary
Quantity be disposed as three, respectively refrigeration evaporator, variable temperature evaporator and refrigerating evaporator, in the entrance of each evaporator
End is respectively arranged with the first capillary, the second capillary and three capillary, and the connection in series-parallel loop for being formed is refrigeration evaporator
Shunt circuit is formed and variable temperature evaporator between, refrigerating evaporator forms string between refrigeration evaporator and variable temperature evaporator respectively
Connection loop so that the independent loop of each in refrigeration plant can be controlled, realize and meet to greatest extent user's
Demand.
In any of the above-described technical scheme, it is preferable that the first valve body is four-way valve, arrival end and the condenser of four-way valve connect
Connect, the first outlet end of four-way valve, second outlet end and the 3rd port of export respectively with the first capillary, the second capillary and the 3rd
Capillary is connected.
In the technical scheme, when refrigerating circuit is set to connection in series-parallel loop, the first valve body is set to four-way valve, and
The arrival end of four-way valve is set to be connected with condenser so that the first outlet that the refrigerant from condenser out passes through four-way valve
End, second outlet end and the 3rd port of export are had respectively entered in refrigeration evaporator, variable temperature evaporator and refrigerating evaporator, are being needed
When being controlled to shunt circuit, it is only necessary to which the one outlet end to four-way valve is controlled, without influenceing other loops
Normally use.
In any of the above-described technical scheme, it is preferable that the port of export of refrigeration evaporator is provided with the second valve body；And/or
The port of export of variable temperature evaporator is provided with the 3rd valve body.
In the technical scheme, in the refrigerating circuit that refrigeration evaporator is formed, set in the port of export of refrigeration evaporator
There is the second valve body, when controlling refrigeration circuit to stop refrigeration, the first outlet end of four-way valve can be closed so as to cut off refrigeration circuit,
The second valve body in refrigeration evaporator outlet is closed simultaneously, therefore refrigerant in refrigeration circuit evaporator will not be due in loop
Potential energy and inertia enter refrigerating evaporator loop, and the refrigerant that refrigeration circuit can be avoided to be produced after cutting off is flowed into refrigerating evaporator
Interior noise, when refrigeration circuit request is freezed again, the second valve body is also opened simultaneously, and refrigeration circuit is again introduced into normal system
Cold state；The port of export of variable temperature evaporator is provided with the 3rd valve body, when control becomes temperature loops stops refrigeration, the of four-way valve
Two ports of export can be closed so as to cut off change temperature loops, while the 3rd valve body in variable temperature evaporator outlet is closed, therefore alternating temperature is returned
Refrigerant in the evaporator of road will not enter refrigerating evaporator loop due to the potential energy and inertia in loop, can avoid becoming temperature loops
The refrigerant produced after cut-out is flowed into the noise in refrigerating evaporator；When change temperature loops request is freezed again, the 3rd valve body
Open simultaneously, become temperature loops and be again introduced into normal refrigerating state, while the second valve body and the 3rd valve body are set to magnetic valve,
The break-make of the second valve body and the 3rd valve body is controlled by electric energy.
In any of the above-described technical scheme, it is preferable that refrigeration plant is refrigerator or refrigerator-freezer.
Second purpose of the invention, there is provided a kind of control method of reduction coolant noise, for controlling refrigeration to set
It is standby, step 102：Receive and turn off or on the instruction of the first valve body；Step 104：It is pass when the instruction of the first valve body is turned off or on
When closing or open the first outlet end in the first valve body, the first outlet end in the first valve body is turned off or on；Step 106：Close
Close or open the second valve body of the port of export of refrigeration evaporator；Step 108：When turn off or on the first valve body instruction for close or
When opening the second outlet end in the first valve body, the second outlet end in the first valve body is turned off or on；Step 110：Close or
Open the 3rd valve body of the port of export of variable temperature evaporator；Step 112：It is to turn off or on when the instruction of the first valve body is turned off or on
During three port of export in the first valve body, the 3rd port of export in the first valve body is turned off or on.
In the control method of the reduction coolant noise that the present invention is provided, first, receive and turn off or on the first valve body
Instruction, can be now the control to first outlet end, second outlet end or the 3rd port of export to the control of the first valve body, work as pass
Close or open the instruction of the first valve body for turn off or in the first valve body first outlet end when, in turning off or on the first valve body
First outlet end, now refrigeration circuit stop refrigeration, turn off or open the second valve body of the port of export of refrigeration evaporator, guarantor
The refrigerant demonstrate,proved in refrigeration evaporator cannot be flowed into refrigerating evaporator；When turn off or on the first valve body instruction for close or
When opening the second outlet end in the first valve body, the second outlet end in the first valve body is turned off or on, now become temperature loops and stop
Only freeze, turn off or open the 3rd valve body of the port of export of variable temperature evaporator, it is ensured that the refrigerant in variable temperature evaporator cannot
It is flowed into refrigerating evaporator；It is the 3rd port of export in turning off or on the first valve body when the instruction of the first valve body is turned off or on
When, turn off or on the 3rd port of export in the first valve body.
In any of the above-described technical scheme, it is preferable that also include after step 112：Step 114：Judging compressor is
It is no to turn off or on；Step 116：When compressor is not turned off or opens, compressor is turned off or on.
In the technical scheme, after the 3rd port of export in the first valve body is turned off or on, judge that compressor is
No to turn off or on, if the 3rd port of export in the first valve body is closed, compressor is not turned off, then close compressor；And
If the 3rd port of export in the first valve body is opened, compressor is not opened, then open compressor.
In any of the above-described technical scheme, it is preferable that also include after step 116：
Step 118：Judge whether first outlet end and/or second outlet end in the first valve turn off or on；Step
120：When first outlet end and/or second outlet end in the first valve are not turned off or open, the first valve is turned off or on
In first outlet end and/or second outlet end.
In the technical scheme, after compressor is turned off or on, judge first outlet end in the first valve and/or
Whether second outlet end turns off or on, if after compressor closing, first outlet end and/or second outlet end are not turned off,
Then close first outlet end and/or second outlet end；If after compressor unlatching, first outlet end and/or second outlet end
Do not open, then open first outlet end and/or second outlet end, by after close compressor by first outlet end and/or the
Two ports of export are closed, it is ensured that the refrigerant in refrigeration evaporator and variable temperature evaporator cannot be flowed into condenser, and then cannot
Produce coolant noise.
In any of the above-described technical scheme, it is preferable that also include after step 120：Step 122：Turn off or on
Two valve bodies and/or the 3rd valve body.
In the technical scheme, behind the first outlet end and/or second outlet end in turning off or on the first valve, will
Refrigeration evaporator outlet the second valve body and/or variable temperature evaporator outlet the 3rd valve body turn off or on, therefore refrigeration and/or
Become temperature loops in refrigerant will not due to the potential energy and inertia in loop enter refrigerating evaporator loop, can avoid refrigeration and/
Or become the noise that the refrigerant produced after temperature loops cut-out is flowed into refrigerating evaporator.
Additional aspect of the invention and advantage will be given in following description section, partly by from following description
In become obvious, or by it is of the invention practice recognize.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 illustrates the structural representation of the refrigeration plant of one embodiment of the present of invention offer；
Fig. 2 illustrates the another structural representation of the refrigeration plant of one embodiment of the present of invention offer；
Fig. 3 illustrates the flow chart of the control method of the reduction coolant noise of one embodiment of the present of invention offer.
Reference：
Wherein, the corresponding relation in Fig. 1 to Fig. 3 between reference and component names is：
10 evaporators, 102 refrigeration evaporators, 104 variable temperature evaporators, 106 refrigerating evaporators, 20 compressors, 30 condensers,
40 capillaries, 402 first capillaries, 404 second capillaries, 406 three capillaries, 50 first valve bodies, 502 first outlet ends,
504 second outlet ends, 506 the 3rd ports of export, 60 second valve bodies, 70 the 3rd valve bodies.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied to be further described in detail the present invention.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
Implemented with being different from mode described here using other, therefore, protection scope of the present invention does not receive following public tool
The limitation of body embodiment.
The refrigeration plant and reduction refrigerant for providing according to one embodiment of present invention are described referring to Fig. 1 to Fig. 3
The control method of noise.
As depicted in figs. 1 and 2, embodiment provides a kind of refrigeration plant, refrigeration plant bag according to a first aspect of the present invention
Include at least one evaporator 10, compressor 20, the capillary 40 of condenser 30 and at least one：In at least one evaporator 10 and cold
The first valve body 50 is provided between condenser 30 so that the refrigerant inside at least one evaporator 10 cannot be back to condenser 30
In.
The refrigeration plant that the present invention is provided includes at least one evaporator 10, compressor 20, condenser 30 and at least one
Capillary 40, the first valve body 50 is arranged between at least one evaporator 10 and condenser 30, is stopped in compressor 20
When or refrigerating circuit when being stopped, after closing the first valve body 50, can cause that the refrigerant inside at least one evaporator 10 cannot
It is back in condenser 30, does not result in asking for the coolant noise that the refrigerant return inside evaporator 10 is produced to condenser 30
Topic, improves the Jing Yin ability of refrigeration plant, improves Consumer's Experience；On the other hand, the refrigeration plant that the present invention is provided can
It is stopped with compressor 20 or refrigerant when refrigerating circuit is stopped in evaporator 10 is prevented is back to condenser 30
Among, it is ensured that the pressure value in the temperature value and refrigeration plant in evaporator 10 everywhere, need to open again in refrigeration setting
Qi Shi, it is possible to achieve the effect of rapid cooling, and without as needing to re-establish pressure system in correlation technique, having saved refrigeration
The energy loss of equipment, improves the competitiveness of product in market.
In one embodiment of the invention, it is preferable that the first valve body 50 is check valve.
In this embodiment, the first valve body 50 is set to check valve, and direction only to allow to be flowed from the end of condenser 30
Enter to the end of evaporator 10, in refrigeration plant stable operation, refrigerant can be with the smooth check valve that flows through without producing or producing very
Small pressure drop, influences smaller to the stable operation of refrigeration plant built-in system；When refrigeration plant stops freezing, now due to unidirectional
The presence refrigerant of valve cannot be back in condenser 30, therefore will not produce refrigerant return noise；Additionally, set check valve after by
In a large amount of liquid refrigerants of memory storage of evaporator 10, therefore temperature in refrigeration plant raises more slow, therefore can extend and stops
Machine time, reducing energy consumption；Finally, when refrigeration plant this unlatching again, a large amount of refrigerants are stored in evaporator 10, therefore compressor
After 20 starts, it is possible to be drawn into the refrigerant of cryogenic high pressure, increase the flow of refrigerant during this.
In one embodiment of the invention, it is preferable that the quantity of at least one evaporator 10 is three, is respectively refrigerated
Evaporator 102, variable temperature evaporator 104 and refrigerating evaporator 106, and the quantity of capillary 40 is identical with the quantity of evaporator 10,
Respectively the first capillary 402, the second capillary 404 and three capillary 406, and be separately positioned on refrigeration evaporator 102, become
The arrival end of warm evaporator 104 and refrigerating evaporator 106；Wherein, formed between refrigeration evaporator 102 and variable temperature evaporator 104
Shunt circuit, refrigerating evaporator 106 forms series loop between refrigeration evaporator 102 and variable temperature evaporator 104 respectively.
In this embodiment, the refrigerating circuit in refrigeration plant is set to connection in series-parallel loop, by evaporator 10 and capillary
40 quantity is disposed as three, respectively refrigeration evaporator 102, variable temperature evaporator 104 and refrigerating evaporator 106, at each
The arrival end of evaporator 10 is respectively arranged with the first capillary 402, the second capillary 404 and three capillary 406, and formed
Connection in series-parallel loop to form shunt circuit between refrigeration evaporator 102 and variable temperature evaporator 104, refrigerating evaporator 106 respectively with
Series loop is formed between refrigeration evaporator 102 and variable temperature evaporator 104 so that each in refrigeration plant independently can be returned
Road is controlled, and realizes the demand for meeting user to greatest extent.
In one embodiment of the invention, it is preferable that the first valve body 50 is four-way valve, arrival end and the condensation of four-way valve
Device 30 is connected, first outlet end 502, the port of export 506 of second outlet end 504 and the 3rd of four-way valve respectively with the first capillary
402nd, the second capillary 404 is connected with three capillary 406.
In this embodiment, when refrigerating circuit is set to connection in series-parallel loop, the first valve body 50 is set to four-way valve, and
The arrival end of four-way valve is set to be connected with condenser 30 so that the refrigerant from condenser 30 out goes out by the first of four-way valve
Mouthful end 502, the port of export 506 of second outlet end 504 and the 3rd have respectively entered refrigeration evaporator 102, variable temperature evaporator 104 and cold
Freeze in evaporator 106, when needing to be controlled shunt circuit, it is only necessary to which the one outlet end to four-way valve is controlled,
Without influenceing the normal of other loops to use.
In one embodiment of the invention, it is preferable that the port of export of refrigeration evaporator 102 is provided with the second valve body
60；And/or the port of export of variable temperature evaporator 104 is provided with the 3rd valve body 70.
In this embodiment, in the refrigerating circuit that refrigeration evaporator 102 is formed, in the port of export of refrigeration evaporator 102
The second valve body 60 is provided with, when controlling refrigeration circuit to stop refrigeration, the first outlet end 502 of four-way valve can be closed so as to cut off
Refrigeration circuit, while the second valve body 60 in the outlet of refrigeration evaporator 102 is closed, therefore the refrigerant in refrigeration circuit evaporator 10
The loop of refrigerating evaporator 106 will not be entered due to the potential energy and inertia in loop, can avoid what refrigeration circuit was produced after cutting off
Refrigerant is flowed into the noise in refrigerating evaporator 106, and when refrigeration circuit request is freezed again, the second valve body 60 is also opened simultaneously
Open, refrigeration circuit is again introduced into normal refrigerating state；The port of export of variable temperature evaporator 104 is provided with the 3rd valve body 70, when
When control becomes temperature loops stopping refrigeration, the second outlet end 504 of four-way valve can be closed so as to cut off change temperature loops, while in alternating temperature
3rd valve body 70 of the outlet of evaporator 104 is closed, therefore refrigerant in alternating temperature loop evaporator 10 will not be due to the gesture in loop
The loop of refrigerating evaporator 106 can be entered with inertia, the refrigerant produced after change temperature loops cut-out can be avoided to be flowed into freezing and evaporating
Noise in device 106；When change temperature loops request is freezed again, the 3rd valve body 70 is also opened simultaneously, is become temperature loops and is again introduced into
Normal refrigerating state, while the second valve body 60 and the 3rd valve body 70 are set to magnetic valve, by electric energy to the second valve body 60
Break-make with the 3rd valve body 70 is controlled.
In one embodiment of the invention, it is preferable that refrigeration plant is refrigerator or refrigerator-freezer.
As shown in figure 3, the second purpose of the invention, there is provided a kind of control method of reduction coolant noise, it is used for
Control refrigeration plant, step 102：Receive and turn off or on the instruction of the first valve body；Step 104：When turning off or on the first valve
Body instruction turns off or on the first outlet end in the first valve body to turn off or on during the first outlet end in the first valve body；
Step 106：Turn off or on the second valve body of the port of export of refrigeration evaporator；Step 108：Refer to when the first valve body is turned off or on
Make to turn off or on during the second outlet end in the first valve body, turn off or on the second outlet end in the first valve body；Step
110：Turn off or on the 3rd valve body of the port of export of variable temperature evaporator；Step 112：It is when the instruction of the first valve body is turned off or on
When turning off or on three port of export in the first valve body, the 3rd port of export in the first valve body is turned off or on.
In the control method of the reduction coolant noise that the present invention is provided, first, receive and turn off or on the first valve body
Instruction, can be now the control to first outlet end, second outlet end or the 3rd port of export to the control of the first valve body, work as pass
Close or open the instruction of the first valve body for turn off or in the first valve body first outlet end when, in turning off or on the first valve body
First outlet end, now refrigeration circuit stop refrigeration, turn off or open the second valve body of the port of export of refrigeration evaporator, guarantor
The refrigerant demonstrate,proved in refrigeration evaporator cannot be flowed into refrigerating evaporator；When turn off or on the first valve body instruction for close or
When opening the second outlet end in the first valve body, the second outlet end in the first valve body is turned off or on, now become temperature loops and stop
Only freeze, turn off or open the 3rd valve body of the port of export of variable temperature evaporator, it is ensured that the refrigerant in variable temperature evaporator cannot
It is flowed into refrigerating evaporator；It is the 3rd port of export in turning off or on the first valve body when the instruction of the first valve body is turned off or on
When, turn off or on the 3rd port of export in the first valve body.
In one embodiment of the invention, it is preferable that also include after step 112：Step 114：Judge compressor
Whether turn off or on；Step 116：When compressor is not turned off or opens, compressor is turned off or on.
In this embodiment, whether after the 3rd port of export in the first valve body is turned off or on, compressor is judged
Turn off or on, if the 3rd port of export in the first valve body is closed, compressor is not turned off, then close compressor；And such as
When threeth port of export of the fruit in the first valve body is opened, compressor is not opened, then open compressor.
In one embodiment of the invention, it is preferable that also include after step 116：
Step 118：Judge whether first outlet end and/or second outlet end in the first valve turn off or on；Step
120：When first outlet end and/or second outlet end in the first valve are not turned off or open, the first valve is turned off or on
In first outlet end and/or second outlet end.
In this embodiment, after compressor is turned off or on, the first outlet end in the first valve and/or are judged
Whether two ports of export turn off or on, if after compressor closing, first outlet end and/or second outlet end are not turned off, then
Close first outlet end and/or second outlet end；If after compressor unlatching, first outlet end and/or second outlet end are not
Open, then open first outlet end and/or second outlet end, by after close compressor by first outlet end and/or second
The port of export is closed, it is ensured that the refrigerant in refrigeration evaporator and variable temperature evaporator cannot be flowed into condenser, and then cannot be produced
Raw coolant noise.
In one embodiment of the invention, it is preferable that also include after step 120：Step 122：Turn off or on
Second valve body and/or the 3rd valve body.
In this embodiment, behind the first outlet end and/or second outlet end in turning off or on the first valve, will be cold
The 3rd valve body for hiding the second valve body and/or the variable temperature evaporator outlet of evaporator outlet is turned off or on, therefore refrigeration and/or change
Refrigerant in temperature loops will not enter refrigerating evaporator loop due to the potential energy and inertia in loop, can avoid refrigeration and/or
Become the noise that the refrigerant produced after temperature loops cut-out is flowed into refrigerating evaporator.
In the description of this specification, term " on ", the orientation of the instruction such as D score or position relationship be based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify and describe, rather than indicating or imply signified device
Or element with specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention；
Term " connection ", " installation ", " fixation " etc. all should be interpreted broadly, for example, " connection " can be fixedly connected, or can
Dismounting connection, or be integrally connected；Can be joined directly together, it is also possible to be indirectly connected to by intermediary.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be as the case may be understood.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that the specific features, structure, material or the feature that are described with reference to the embodiment or example are contained in of the invention at least one real
In applying example or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or reality
Example.And, the specific features of description, structure, material or feature can in one or more any embodiments or example with
Suitable mode is combined.
The preferred embodiments of the present invention are these are only, is not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of refrigeration plant, the refrigeration plant includes at least one evaporator, compressor, condenser and at least one capillary
Pipe, it is characterised in that：
The first valve body is provided between at least one evaporator and the condenser so that at least one evaporator
Internal refrigerant cannot be back in the condenser.
2. refrigeration plant according to claim 1, it is characterised in that
First valve body is check valve.
3. refrigeration plant according to claim 1, it is characterised in that
The quantity of at least one evaporator is three, respectively refrigeration evaporator, variable temperature evaporator and refrigerating evaporator, and
The quantity of the capillary is identical with the quantity of the evaporator, respectively the first capillary, the second capillary and the 3rd capillary
Pipe, and it is separately positioned on the arrival end of the refrigeration evaporator, the variable temperature evaporator and the refrigerating evaporator；
Wherein, form shunt circuit between the refrigeration evaporator and the variable temperature evaporator, the refrigerating evaporator respectively with
Series loop is formed between the refrigeration evaporator and the variable temperature evaporator.
4. refrigeration plant according to claim 3, it is characterised in that
First valve body is four-way valve, and the arrival end of the four-way valve is connected with the condenser, the first of the four-way valve
The port of export, second outlet end and the 3rd port of export respectively with first capillary, second capillary and described 3rd mao
Tubule is connected.
5. refrigeration plant according to claim 4, it is characterised in that
The port of export of the refrigeration evaporator is provided with the second valve body；And/or
The port of export of the variable temperature evaporator is provided with the 3rd valve body.
6. refrigeration plant according to claim 5, it is characterised in that
The refrigeration plant is refrigerator or refrigerator-freezer.
7. it is a kind of reduce coolant noise control method, for controlling refrigeration plant, it is characterised in that
Step 102：Receive and turn off or on the instruction of the first valve body；
Step 104：When it is described turn off or on the instruction of the first valve body for first outlet end in turning off or on the first valve body when,
Turn off or on the first outlet end in the first valve body；
Step 106：Turn off or on the second valve body of the port of export of refrigeration evaporator；
Step 108：When it is described turn off or on the instruction of the first valve body for second outlet end in turning off or on the first valve body when,
Turn off or on the second outlet end in the first valve body；
Step 110：Turn off or on the 3rd valve body of the port of export of variable temperature evaporator；
Step 112：When it is described turn off or on the instruction of the first valve body for three port of export in turning off or on the first valve body when,
Turn off or on the 3rd port of export in the first valve body.
8. it is according to claim 7 reduce coolant noise control method, it is characterised in that after the step 112
Also include：
Step 114：Judge whether compressor turns off or on；
Step 116：When the compressor is not turned off or opens, the compressor is turned off or on.
9. according to claim 7 or 8 reduction coolant noise control method, it is characterised in that the step 116 it
Also include afterwards：
Step 118：Judge whether first outlet end and/or second outlet end in first valve turn off or on；
Step 120：When first outlet end and/or second outlet end in first valve are not turned off or open, close or
Open the first outlet end and/or second outlet end in first valve.
10. it is according to claim 9 reduce coolant noise control method, it is characterised in that after the step 120
Also include：
Step 122：Turn off or on second valve body and/or the 3rd valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079009.XA CN106871541A (en) | 2017-02-14 | 2017-02-14 | The control method of refrigeration plant and reduction coolant noise |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079009.XA CN106871541A (en) | 2017-02-14 | 2017-02-14 | The control method of refrigeration plant and reduction coolant noise |
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| CN106871541A true CN106871541A (en) | 2017-06-20 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710079009.XA Pending CN106871541A (en) | 2017-02-14 | 2017-02-14 | The control method of refrigeration plant and reduction coolant noise |
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| CN107560000A (en) * | 2017-10-23 | 2018-01-09 | 刘丽华 | A kind of desktop Portable air-conditioning |
| CN109059395A (en) * | 2018-06-20 | 2018-12-21 | 合肥美的电冰箱有限公司 | The control method of refrigerator and refrigerator |
| CN112556264A (en) * | 2020-12-01 | 2021-03-26 | 青岛铂迈睿思生物科技有限公司 | Overlapping liquid nitrogen refrigerating device |
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