CN108007005A - Flash evaporation refrigeration system, the refrigerator and its control method with the refrigeration system - Google Patents
Flash evaporation refrigeration system, the refrigerator and its control method with the refrigeration system Download PDFInfo
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- CN108007005A CN108007005A CN201711096099.XA CN201711096099A CN108007005A CN 108007005 A CN108007005 A CN 108007005A CN 201711096099 A CN201711096099 A CN 201711096099A CN 108007005 A CN108007005 A CN 108007005A
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- flash evaporation
- refrigerator
- refrigeration system
- solenoid valve
- evaporator
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Classifications
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- 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
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
Abstract
Refrigerator and its control method the invention discloses a kind of flash evaporation refrigeration system, with the refrigeration system, wherein flash evaporation refrigeration system include：The closed circuit that compressor, condenser, first throttle component, flash evaporation, the second throttle part, evaporator, check valve and return-air heat exchanger are in turn connected into；Refrigerant, the circularly cooling in the closed circuit；Solenoid valve, has two ports of inlet and outlet, and import is connected with flash evaporation, and outlet is connected with check valve and return-air heat exchanger；Control panel, is connected with solenoid valve, for controlling conducting and the closure of solenoid valve；In addition, additionally provide a kind of refrigerator and its control method with the refrigeration system；Aspiration phases of the present invention by solenoid valve control flash evaporation gaseous refrigerant to compressor air suction mouth, and use and throttle twice, gas-liquid separation effect of the flash evaporation to refrigerant is improved, not only realizes refrigerator energy-saving operation, but also be conducive to the control of product holistic cost.
Description
Technical field
The present invention relates to refrigeration technology field, in particular to a kind of flash evaporation refrigeration system, has the refrigeration system
Refrigerator and its control method.
Background technology
Refrigeration for refrigerator requires the expenditure of energy.Improve the power consumption of refrigerator using various technical measures so that refrigerator is increasingly
It is energy saving, it is the unremitting pursuit of refrigerator manufacturing enterprise.
The refrigeration system of conventional refrigerator is refering to what is shown in Fig. 1, it includes：Compressor 10, condenser 20, throttle part 30, steaming
Send out device 40, return-air heat exchanger 50.During refrigeration for refrigerator, trend of the refrigerant in refrigeration system is：10 → condenser of compressor 20
→ return-air heat exchanger 50 (the first heat exchanger tube) → 30 → evaporator of throttle part, 40 → return-air heat exchanger 50 (the second heat exchanger tube) →
Compressor 10.
More specifically, during refrigeration for refrigerator, the low-temperature low-pressure refrigerant gas of the outlet of flash-pot 40 is carried out, through pressure
After contracting machine 10 compresses, the refrigerant gas for being changed into high temperature and pressure enters condenser 20, after condensed device 20 condenses, becomes medium temperature height
The liquid refrigerant of pressure, after throttle part 30 (being usually capillary) reducing pressure by regulating flow, into evaporator 40, and passes through evaporator
40 are evaporated heat absorption, and the low-temperature low-pressure refrigerant gas cooled via return air heat exchanger 50 after evaporation is further after heat exchange, then flow back to pressure
Contracting machine 10, above procedure in cycles, realize that refrigerator continues refrigeration effect.
For the refrigeration system of conventional refrigerator, energy conservation measure is carried out mainly for above-mentioned component, such as raising compressor COP,
Improve condenser and evaporator effectiveness, optimization throttle part design etc., in product and technology more and more homogeneous today, often
The power-saving technology of rule, gradually faces technical bottleneck.
Result of study shows, the refrigerant for flowing into evaporator is exported by throttle part, it is gentle to generally comprise liquid
Body two states, since gas refrigerant can not realize freezing by change of state, thus the presence of gas refrigerant is imitated for refrigeration system
There is adverse effect in the lifting of rate.Therefore, if the separation of refrigerant liquid and gas can be realized in the input end for flowing into evaporator,
It then can preferably improve refrigerant system efficiency, reach the effect of refrigerator energy-saving operation.But the refrigeration system of conventional refrigerator, is limited to existing
There is the inherent characteristic of refrigerant system configurations, can not realize the separation of refrigerant liquid and gas after throttling.
Therefore, it is necessary to a kind of improved refrigerator refrigeration system is provided, to solve the above problems.
The content of the invention
The technical problems to be solved by the invention are in view of the deficiencies of the prior art, there is provided a kind of flash evaporation refrigeration system,
Refrigerator and its control method with the refrigeration system, the gas liquid separating function by flash evaporation to refrigerant, by refrigerant liquid
Body supplies evaporator, and refrigerant gas is oriented to the air entry of compressor, it is achieved thereby that refrigeration system high-efficiency operation, finally
Meet the requirement of refrigerator energy-saving operation.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of flash evaporation refrigeration system, including：
Compressor, condenser, first throttle component, flash evaporation, the second throttle part, evaporator, check valve and return-air change
The closed circuit that hot device is in turn connected into；
Refrigerant, the circularly cooling in the closed circuit；
Solenoid valve, has two ports of inlet and outlet, and import is connected with flash evaporation, and outlet exchanges heat with check valve and return-air
Device connects；
Control panel, is connected with solenoid valve, for controlling conducting and the closure of solenoid valve；
The flash evaporation, has the first to the 3rd port, the flash evaporation first port and the first throttle component phase
Even, second port is connected with second throttle part, and the 3rd port is connected with the solenoid valve；The check valve, have into
Two ports of mouth and outlet, the check valve inlet are connected with the evaporator, and outlet is connected with the solenoid valve.
The evaporator is two, including the first evaporator and the second evaporator, first evaporator and the second evaporation
Device is connected in series, and the first evaporator is placed in first indoor, and the second evaporator is placed in second compartment.
First compartment temperature sensor, is connected with the control panel, for detecting the first compartment of refrigerator inner space
Temperature；
Second compartment temperature sensor, is connected with the control panel, for detecting refrigerator second compartment inner space
Temperature；
Environment temperature sensor, is connected with the control panel, for detecting refrigerator ambient temperature, the control panel
Conducting and the closure of the solenoid valve are controlled according to the environment temperature.
The return-air heat exchanger, has the first heat exchanger tube and the second heat exchanger tube；
The first heat exchanger tube and the second heat exchanger tube of the return-air heat exchanger realize heat exchange by contacting each other；
The first heat exchanger tube import is connected with condenser, and outlet is connected with first throttle component；Second heat exchanger tube import respectively with electricity
Magnet valve and check valve are connected, and outlet is connected with compressor air suction mouth.
The flash evaporation is made of cylinder and the inclining tube being arranged on cylinder, and inclining tube is arranged with cylinder in 45° angle degree.
The first throttle component and the second throttle part are capillary or throttle valve.
Further include：Temperature control controller, is connected by the control panel with the compressor, positioned at the refrigerator inside,
For controlling the compressor operating with closing.
A kind of refrigerator, including the flash evaporation refrigeration system, wherein, flash evaporation is arranged in the refrigerating chamber of refrigerator.
The control method of the refrigerator,
Compressor, condenser, first throttle component, flash evaporation, the second throttle part, evaporator, check valve and return-air change
Hot device is sequentially connected in series into closed circuit, and refrigerant flows in the closed circuit, by throttle part by the liquid refrigeration of high pressure
Agent enters evaporator after being converted into the liquid refrigerant of low pressure, realizes circularly cooling, also, in the 3rd port of flash evaporation and unidirectionally
The one in parallel solenoid valve controlled by control panel between valve outlet, so allow for the refrigeration system in the presence of two kinds of operating modes with
State, for example, system, when working under compared with high environment temperature state, refrigerator thermic load is in higher value, and heat dissipation effect is poor, system
The degree of supercooling of cryogen reduces, and causes the amount increase of the gaseous refrigerant of the throttle part port of export, the electromagnetism of control panel control at this time
Valve is in conducting state, improves pumping velocity of the gaseous refrigerant to compressor air suction mouth, avoids gaseous refrigerant from flowing into evaporation
Device；When system works under relatively low ambient temperature conditions, refrigerator thermic load is in smaller value, and heat dissipation effect is preferable, refrigerant
Degree of supercooling is good, therefore the amount of the gaseous refrigerant of the throttle part port of export is reduced, while the refrigerant liquid inside flash evaporation
Increase, liquid level rise, the solenoid valve of control panel control at this time to closed mode, reduce gaseous refrigerant to compressor air suction mouth
Pumping velocity, when avoiding that liquid level is higher in flash evaporation, liquid refrigerant passes through solenoid valve and flows into compressor air suction mouth, triggers pressure
The liquid hammer problem of contracting machine cylinder or valve block.
Compared to the prior art compared with the present invention possesses following advantage：By solenoid valve control flash evaporation gaseous refrigerant to
The aspiration phases of compressor air suction mouth, compared with using the regulation scheme of electric flow control valve, control is simpler, is conducive to produce
The control of product holistic cost；Meanwhile throttled twice using two throttle parts, realization, flash evaporation is preferably improved to refrigeration
The gas-liquid separation effect of agent.
Gas liquid separating function of the present invention by flash evaporation to refrigerant, supplies evaporator by refrigerant liquid, will freeze
Agent gas is oriented to the air entry of compressor, it is achieved thereby that refrigeration system high-efficiency operation, finally meets refrigerator energy-saving operation
It is required that.In addition, by installing check valve in evaporator outlet end, it can be flowed into and evaporated by evaporator outlet to avoid gaseous refrigerant
Device is so as to improve the job stability of refrigeration system；By setting both flash evaporation cylinder and inclining tube for being arranged on cylinder
Possible angle, improve refrigerant gas and liquid separating effect, avoid liquid refrigerant from flowing into compressor air suction mouth, trigger pressure
The liquid hammer problem of contracting machine cylinder or valve block, so as to improve the functional reliability of refrigeration system；By throttling process twice, change
It has been apt to the degree of supercooling of flash evaporation inner refrigerant liquid, has improved gas-liquid separation effect of the flash evaporation to refrigerant；By using into
This relatively low solenoid valve control flash evaporation gaseous refrigerant instead of the higher electricity of cost to the aspiration phases of compressor air suction mouth
Dynamic flow control valve, thus it is simple in structure, be conducive to the control of product holistic cost.
Brief description of the drawings
Fig. 1 is a kind of refrigeration system of the prior art.
Fig. 2 is the refrigeration system in embodiment one provided by the invention.
Fig. 3 is the refrigeration system in embodiment two provided by the invention.
Fig. 4 be Fig. 2, Fig. 3 shown in refrigeration system in flash evaporation structure diagram.
Fig. 5 is master control borad and refrigerator temperature sensor, refrigerating chamber sensor, electricity in the refrigeration system shown in Fig. 2, Fig. 3
The connection diagram of magnet valve and environment temperature sensor.
Fig. 6 be Fig. 2, Fig. 3 shown in refrigeration system in solenoid valve control flow chart.
Wherein, the correspondence in Fig. 2 and Fig. 3 between reference numeral and component names is：
10 compressors, 20 condensers, 30 throttle parts, 40 evaporators, 401 first evaporators, 402 second evaporators, 50
Return-air heat exchanger, 60 flash evaporations.
Embodiment
It is to better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the case where there is no conflict, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other different from other modes described here, therefore, protection scope of the present invention and from described below
Specific embodiment limitation.
Embodiment one：
As shown in Fig. 2, a kind of flash evaporation refrigeration system, including：Compressor 10, condenser 20, first throttle component 30,
The closed circuit that two throttle parts 90, evaporator 40, return-air heat exchanger 50, flash evaporation 60 and check valve 80 are in turn connected into；
Refrigerant, in the closed circuit circularly cooling；
Compressor 10, has air entry 11 and exhaust outlet 12；
Flash evaporation 60, has first port 61,62 and the 3rd port 63 of second port；
Return-air heat exchanger 50 in the refrigeration system, has the first heat exchanger tube 51 and the second heat exchanger tube 52.
60 first port 61 of flash evaporation is connected with the outlet 32 of throttle part 30, second port 62 and the import of evaporator 40
41 are connected, and the 3rd port 63 is connected with the import 71 of solenoid valve 70.
First heat exchanger tube 51 of return-air heat exchanger 50, the second heat exchanger tube 52 realize heat exchange by contacting each other；
First heat exchanger tube, 51 import 511 is connected with the outlet of condenser 20 22, and outlet 512 is connected with the import 31 of throttle part 30；
Second heat exchanger tube, 52 import 522 is connected with the outlet 72 of solenoid valve 70 and the outlet 82 of check valve 80 respectively, outlet 521 and pressure
10 air entry 11 of contracting machine is connected；
30 and second throttle part 90 of first throttle component can be the arbitrary forms such as capillary or throttle valve.
Embodiment two：
What is different from the first embodiment is that in the present embodiment, the evaporator is made of multiple evaporators, including the first evaporation
401 and second evaporator 402 of device, the first evaporator 401 are placed in first indoor, freeze for the first compartment, the second evaporator
402 are placed in second compartment, freeze for second compartment, and first, second evaporator connects in the way of series connection, as shown in Figure 3.
The present invention provides a kind of refrigerator to include：Flash evaporation refrigeration system as described in above-mentioned any embodiment.
Refrigerator provided by the invention, because including the refrigeration system as described in above-mentioned any embodiment, therefore with above-mentioned
Whole beneficial effects of refrigeration system described in any embodiment, do not do state one by one herein.
Further, flash evaporation 60 is made of cylinder 601 and inclining tube 602, and inclining tube 602 and cylinder 601 are in 45° angle degree
Arrangement, to obtain preferable refrigerant air-liquid separating effect, as shown in Figure 4.
Further, the first compartment temperature sensor 120, is connected with the control panel 100, for detecting refrigerator first
The temperature of compartment inner space；Second compartment temperature sensor 130, is connected with the control panel 100, for detecting refrigerator
The temperature of two compartment inner spaces；Environment temperature sensor 110, is connected with the control panel 100, for detecting around refrigerator
Environment temperature, the ambient temperature value that the control panel 90 is detected according to the environment temperature sensor 110, controls the electromagnetism
The aperture size of valve 70, as shown in Figure 5.
Fig. 6 shows the control method of solenoid valve 70 in the refrigeration system：After refrigerator powers on operation, solenoid valve 70 is reset to
Minimum aperture (can also completely close) state, and temperature value and setting temperature are detected by monitoring any compartment temperature sensor of refrigerator
The temperature difference △ T of angle value, judge whether refrigerator enters steady operational status.In a stable operation state, when environment temperature senses
When the ambient temperature value Ta that device 110 detects is more than or equal to setting value (such as 16 DEG C) DEG C, the control solenoid valve 70 of control panel 100 is in
Conducting state；When the ambient temperature value Ta that environment temperature sensor 110 detects is less than setting value (such as 16 DEG C), control panel
100 control solenoid valves 70 are in closed mode；.
In conclusion refrigerator provided by the invention and its refrigeration system, refrigerant is in compressor 10, condenser 20, first
Throttle part 30, the second throttle part 90, evaporator 40, return-air heat exchanger 50 and flash evaporation 60 are sequentially connected in series, and evaporator 40
Outlet 42 be connected by check valve 80, return-air heat exchanger 50 with the air entry 11 of compressor 10 in formed closed circuit
Circularly cooling, also, refrigerant liquid is supplied evaporator, refrigerant gas is led by the present invention by the effect of flash evaporation 60
To the air entry of compressor 10, refrigerator energy-saving operation is not only realized, but also be conducive to the control of product holistic cost.
In the present invention, the term such as term " installation ", " connected ", " connection ", " fixation " should all be interpreted broadly, for example,
" connection " can be fixedly connected or be detachably connected, or be integrally connected；" connected " can be directly connected,
It can be indirectly connected by intermediary.For the ordinary skill in the art, on can understanding as the case may be
State the concrete meaning of term in the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that the particular features, structures, materials, or characteristics that the embodiment or example describe are contained in the present invention
Apply in example or example.In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more embodiments or example with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. flash evaporation refrigeration system, it is characterised in that including：Compressor, condenser, first throttle component, flash evaporation, the second throttle part, evaporator, check valve and return-air heat exchanger The closed circuit being in turn connected into；Refrigerant, the circularly cooling in the closed circuit；Solenoid valve, has two ports of inlet and outlet, and import is connected with flash evaporation, and outlet connects with check valve and return-air heat exchanger Connect；Control panel, is connected with solenoid valve, for controlling conducting and the closure of solenoid valve；The flash evaporation, has the first to the 3rd port, and the flash evaporation first port is connected with the first throttle component, the Two-port netwerk is connected with second throttle part, and the 3rd port is connected with the solenoid valve；The check valve, has import and goes out Two ports of mouth, the check valve inlet are connected with the evaporator, and outlet is connected with the solenoid valve.
- 2. flash evaporation refrigeration system according to claim 1, it is characterised in thatThe evaporator is two, including the first evaporator and the second evaporator, first evaporator and the second evaporator string Connection connection, the first evaporator are placed in first indoor, and the second evaporator is placed in second compartment.
- 3. flash evaporation refrigeration system according to claim 2, it is characterised in that further includeFirst compartment temperature sensor, is connected with the control panel, for detecting the temperature of the first compartment of refrigerator inner space；Second compartment temperature sensor, is connected with the control panel, for detecting the temperature of refrigerator second compartment inner space；Environment temperature sensor, is connected with the control panel, for detecting refrigerator ambient temperature, the control panel according to The environment temperature controls conducting and the closure of the solenoid valve.
- 4. flash evaporation refrigeration system according to claim 1, it is characterised in that：The return-air heat exchanger, has the first heat exchanger tube and the second heat exchanger tube；The first heat exchanger tube and the second heat exchanger tube of the return-air heat exchanger realize heat exchange by contacting each other；It is described First heat exchanger tube import is connected with condenser, and outlet is connected with first throttle component；Second heat exchanger tube import respectively with solenoid valve And check valve is connected, outlet is connected with compressor air suction mouth.
- 5. flash evaporation refrigeration system according to claim 1, it is characterised in that：The flash evaporation is made of cylinder and the inclining tube being arranged on cylinder, and inclining tube is arranged with cylinder in 45° angle degree.
- 6. flash evaporation refrigeration system according to claim 1, it is characterised in that：The first throttle component and the second throttle part are capillary or throttle valve.
- 7. flash evaporation refrigeration system according to claim 1, it is characterised in that further include：Temperature control controller, is connected by the control panel with the compressor, described for controlling positioned at the refrigerator inside Compressor operating is with closing.
- A kind of 8. refrigerator, it is characterised in that including：Flash evaporation refrigeration system as any one of claim 1 to 7.
- 9. the control method of refrigerator described in claim 8, it is characterised in that：Compressor, condenser, first throttle component, flash evaporation, the second throttle part, evaporator, check valve and return-air heat exchanger Closed circuit is sequentially connected in series into, refrigerant flows in the closed circuit, turns the liquid refrigerant of high pressure by throttle part Enter evaporator after turning to the liquid refrigerant of low pressure, realize circularly cooling, also, go out with check valve in the 3rd port of flash evaporation A solenoid valve controlled by control panel in parallel between mouthful, so allowing for the refrigeration system, there are two kinds of operating modes and shape State, for system when working under compared with high environment temperature state, refrigerator thermic load is in higher value, and heat dissipation effect is poor, refrigerant Degree of supercooling reduces, and causes the amount increase of the gaseous refrigerant of the throttle part port of export, and the solenoid valve of control panel control at this time is in Conducting state, improves pumping velocity of the gaseous refrigerant to compressor air suction mouth, avoids gaseous refrigerant from flowing into evaporator；System When working under relatively low ambient temperature conditions, refrigerator thermic load is in smaller value, and heat dissipation effect is preferable, and the degree of supercooling of refrigerant is good It is good, therefore the amount of the gaseous refrigerant of the throttle part port of export is reduced, and meanwhile the refrigerant liquid increase inside flash evaporation, liquid level Rise, the solenoid valve of control panel control at this time to closed mode, reduce suction speed of the gaseous refrigerant to compressor air suction mouth Degree, when avoiding that liquid level is higher in flash evaporation, liquid refrigerant passes through solenoid valve and flows into compressor air suction mouth, triggers compresser cylinder Or the liquid hammer problem of valve block.
- 10. control method according to claim 9, it is characterised in that：After refrigerator powers on operation, solenoid valve is reset to minimum aperture or completely closed state, by monitoring any room temperature of refrigerator Degree sensor detects temperature value and the temperature difference △ T of set temperature value, judges whether refrigerator enters steady operational status；Steady Determine under operating status, when the ambient temperature value Ta that environment temperature sensor detects is more than or equal to setting value, control panel control Solenoid valve is in conducting state；When the ambient temperature value Ta that environment temperature sensor detects is less than setting value, control panel control Solenoid valve is in closed mode.
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| CN201711096099.XA CN108007005B (en) | 2017-11-08 | 2017-11-08 | Flash evaporation refrigeration system, the refrigerator with the refrigeration system and its control method |
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| CN201711096099.XA CN108007005B (en) | 2017-11-08 | 2017-11-08 | Flash evaporation refrigeration system, the refrigerator with the refrigeration system and its control method |
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| CN108007005B CN108007005B (en) | 2019-10-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020143629A1 (en) * | 2019-01-10 | 2020-07-16 | Qingdao Haier Refrigerator Co., Ltd. | Fast switching multiple evaporator system for an appliance |
| CN111457624A (en) * | 2019-01-18 | 2020-07-28 | 青岛海尔电冰箱有限公司 | Throttling device, refrigerating system, refrigerator and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020143629A1 (en) * | 2019-01-10 | 2020-07-16 | Qingdao Haier Refrigerator Co., Ltd. | Fast switching multiple evaporator system for an appliance |
| CN111457624A (en) * | 2019-01-18 | 2020-07-28 | 青岛海尔电冰箱有限公司 | Throttling device, refrigerating system, refrigerator and control method |
| CN111457624B (en) * | 2019-01-18 | 2022-12-27 | 青岛海尔电冰箱有限公司 | Throttling device, refrigerating system, refrigerator and control method |
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