CN110094922A - Refrigeration equipment - Google Patents
Refrigeration equipment Download PDFInfo
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- CN110094922A CN110094922A CN201910411122.2A CN201910411122A CN110094922A CN 110094922 A CN110094922 A CN 110094922A CN 201910411122 A CN201910411122 A CN 201910411122A CN 110094922 A CN110094922 A CN 110094922A
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- China
- Prior art keywords
- evaporator
- switching valve
- refrigerating chamber
- refrigeration equipment
- input terminal
- Prior art date
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B41/37—Capillary tubes
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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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
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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
- F25D29/00—Arrangement or mounting of control or safety 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention proposes a kind of refrigeration equipments, including compressor, freezer evaporator and refrigerator evaporator；First switching valve, the output end of compressor are connected with the first end of the first switching valve, and the second end of the first switching valve is connected with the input terminal of refrigerator evaporator；First output end of refrigerator evaporator is connected with the first input end of freezer evaporator, and the output end of freezer evaporator is connected with the input terminal of compressor；Control device, control device is connected with the first switching valve, the evaporator temperature values and/or freezing chamber current temperature value that evaporator temperature values and/or refrigerating chamber current temperature value for confirming refrigerator evaporator are lower than refrigerating chamber set temperature and freezer evaporator are higher than freezing chamber set temperature, control compressor start, and the first end of the first switching valve of control is connected with the second end of the first switching valve, refrigerating chamber is heated using the refrigerant of compressor output, heats brought drawback to avoid heater strip.
Description
Technical field
The present invention relates to field of refrigeration equipments, in particular to a kind of refrigeration equipment.
Background technique
As shown in Figure 1, refrigerator evaporator and freezer evaporator in single-system and single temperature control refrigerator, capillary, cold
Condenser and compressor are successively connected with each other, specifically, low when the environment temperature locating for single-system and single temperature control refrigerator is lower
When the refrigeration set temperature of refrigerating chamber, refrigerating chamber not will start compressor and freeze, and if freezing chamber has refrigeration at this time
When demand, since the temperature of refrigerating chamber is lower than the limitation for refrigerating set temperature, the refrigeration demand of freezing chamber be cannot respond to.
In related art scheme, refrigerating chamber is heated by the way that heater strip is arranged in refrigerating chamber, however those skilled in the art
Member's discovery is since heater strip is attached to refrigeration case courage, during volume production, if attaching defective tightness, bores in foaming process
Bubble, not only compensation effect is impacted, and there are energy losses and security risk in heater strip heating process.
Therefore, how to solve the problems, such as the problem of related art scheme is current urgent need to resolve.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
A kind of therefore, the present invention intends to propose refrigeration equipment.
In view of this, according to an aspect of the present invention, it proposes a kind of refrigeration equipment, refrigeration equipment include compressor,
Freezer evaporator and refrigerator evaporator；First switching valve, the output end of compressor are connected with the first end of the first switching valve
It connects, the second end of the first switching valve is connected with the input terminal of refrigerator evaporator；First output end of refrigerator evaporator with
The first input end of freezer evaporator is connected, and the output end of freezer evaporator is connected with the input terminal of compressor；Control
Device processed, control device are connected with the first switching valve, for confirming evaporator temperature values and/or the refrigeration of refrigerator evaporator
Room current temperature value is lower than refrigerating chamber set temperature and the evaporator temperature values and/or freezing chamber Current Temperatures of freezer evaporator
Value is higher than freezing chamber set temperature, controls compressor start, and the first end and the first switching valve of the first switching valve of control
Second end conducting.
Refrigeration equipment provided by the invention include compressor, refrigerator evaporator, freezer evaporator, the first switching valve and
Control device, wherein the first switching valve, the output end of compressor are connected with the first end of the first switching valve, the first switching valve
Second end be connected with the input terminal of refrigerator evaporator；First output end of refrigerator evaporator and freezer evaporator
First input end is connected, and the output end of freezer evaporator is connected with the input terminal of compressor, and control device is cold in confirmation
The evaporator temperature values and/or refrigerating chamber current temperature value for hiding room evaporator are lower than refrigerating chamber set temperature and freezer evaporator
Evaporator temperature values and/or freezing chamber current temperature value be higher than freezing chamber set temperature, i.e., where current freezer evaporator
Freezing chamber have refrigeration demand, and the refrigerating chamber where refrigerator evaporator do not have refrigeration demand, control compressor start,
And the first end for controlling the first switching valve is connected with the second end of the first switching valve, is flowed through using the high temperature refrigerant that compressor exports
Refrigerator evaporator heats refrigerator evaporator, so that evaporator temperature values and/or refrigerating chamber current temperature value are higher than
Refrigerating chamber set temperature, and then refrigerator evaporator and/refrigerating chamber are heated using the refrigerant of compressor output, to avoid correlation
Heater strip heats brought drawback in technical solution.
Above-mentioned refrigeration equipment according to the present invention, can also have following technical characteristic:
In the above-mentioned technical solutions, further, the of the first output end of refrigerator evaporator and freezer evaporator
The first capillary is additionally provided between one input terminal, the input terminal of the first capillary is connected with the first output end of refrigerator evaporator
It connects, the output end of the first capillary is connected with the first input end of freezer evaporator.
In the technical scheme, pass through the first input of the first output end and freezer evaporator in refrigerator evaporator
First capillary is set between end, using the first capillary to the throttling process of refrigerant, so that the refrigerant after throttling flows through freezing
It can freeze to freezing chamber when the evaporator of room, avoid causing freezing room temperature during carrying out temperature-compensating to refrigerating chamber
Degree increases, and in turn results in the food spoilage stored in freezing chamber, while reducing energy consumption.
It is upper it is any state in technical solution, further, refrigeration equipment further include: condenser, the input terminal of condenser with
The third end of first switching valve is connected, and the output end of condenser is connected with the output end of freezer evaporator；Control device
It is also used to: detecting and confirm that the evaporator temperature values of refrigerator evaporator and/or refrigerating chamber current temperature value are set higher than refrigerating chamber
Determine temperature, the first end of the first switching valve of control is connected with the third end of the first switching valve.
In the technical scheme, by the way that condenser is arranged, the input terminal of condenser is connected with the third end of the first switching valve
It connects, the output end of condenser is connected with the output end of freezer evaporator, and control device is also used to: detecting and confirm refrigerating chamber
The evaporator temperature values and/or refrigerating chamber current temperature value of evaporator are higher than refrigerating chamber set temperature, the first switching valve of control
First end is connected with the third end of the first switching valve, so that the refrigerant of compressor output is after the condensation of condenser, it is right
The freezer evaporator and refrigerator evaporator flowed through freezes, and then ensures to have refrigeration demand in refrigerating chamber and freezing chamber
Shi Jinhang refrigeration reduces the food of storage because temperature change causes rotten possibility.
It is upper it is any state in technical solution, further, the output end of the output end of the second capillary, freezer evaporator
The second switching valve is equipped between the input terminal of compressor, the first end of the second switching valve is connected with the output end of the second capillary
It connects, the second end of the second switching valve is connected with the output end of freezer evaporator, the third end of the second switching valve and compressor
Input terminal be connected；Control device is connected with the second switching valve, for confirming the evaporator temperature values of refrigerator evaporator
And/or the refrigerating chamber current temperature value of refrigerating chamber is lower than refrigerating chamber set temperature and the evaporator temperature values of freezer evaporator
And/or freezing chamber current temperature value is higher than freezing chamber set temperature, controls the second end and the second switching valve of the second switching valve
The conducting of third end, or the evaporator temperature values and/or refrigerating chamber current temperature value of confirmation refrigerator evaporator are set higher than refrigerating chamber
Determine temperature, the first end of the second switching valve of control is connected with the second end of the second switching valve.
In the technical scheme, by the way that the second switching valve is arranged, the flow path switching effect selection pair of the second switching valve is utilized
The path conducting answered, avoids when freezing to freezer evaporator and freezer evaporator, refrigerant weighs the second capillary
Output end is flowed directly into the input terminal of compressor, and refrigerant is caused directly to flow between compressor and the second capillary, can not
Freeze to freezer evaporator and freezer evaporator, and then influences refrigeration effect.
It is upper it is any state in technical solution, further, the third end of the input terminal of refrigerator evaporator, the second switching valve
Third switching valve, the first end and the input terminal phase of refrigerator evaporator of third switching valve are equipped between the input terminal of compressor
Connection, the second end of third switching valve are connected with the third end of the second switching valve, the third end of third switching valve and compressor
Input terminal be connected；Control device is connected with third switching valve, for confirming the evaporator temperature values of refrigerator evaporator
And/or refrigerating chamber current temperature value is lower than evaporator temperature values and/or the freezing of refrigerating chamber set temperature and freezer evaporator
Room current temperature value is higher than freezing chamber set temperature, and the third end for controlling the second end and third switching valve of third switching valve is led
It is logical.
In the technical scheme, by the way that third switching valve is arranged, the connection between different port in third switching valve is utilized
State control flows into the path of compressor refrigerant, specifically, evaporator temperature values and/or refrigeration in confirmation refrigerator evaporator
Room current temperature value is lower than refrigerating chamber set temperature and the evaporator temperature values and/or freezing chamber Current Temperatures of freezer evaporator
Value is higher than freezing chamber set temperature, and the second end of control third switching valve is connected with the third end of third switching valve, so as to cold
The refrigerant that hiding room evaporator carries out temperature-compensating flows into compressor by the path be connected, it is ensured that the circulation of refrigerant, and then really
The stability of insurance system, when being freezed, the first end of control third switching valve is connected with the third end of third switching valve, into
And realize the refrigerant circulation in process of refrigerastion.
Optionally, in third switching valve the case where the second end of third switching valve is connected with the third end of third switching valve
Under, the first end of third switching valve can also be connected with the third end of third switching valve, by control third switching valve first
The aperture at end and the third end of third switching valve, when so that the coolant quantity of compressor output is excessive, a part is switched by third
Compressor is flowed back in the path that the third end of the first end of valve and third switching valve is formed, and a part flows through refrigerator evaporator, cold
Compressor is flowed back to after freezing room evaporator, and then ensures the stability of system.
It is upper it is any state in technical solution, further, refrigeration equipment further include: the first check valve, the first check valve are set
It sets between the second end of the first switching valve and the input terminal of refrigerator evaporator, is flowed to for limiting refrigerant by the first switching valve
Refrigerator evaporator.
In the technical scheme, by being set between the second end of the first switching valve and the input terminal of refrigerator evaporator
First check valve avoids the occurrence of the refrigerant return for carrying out temperature-compensating to refrigerator evaporator, and then influences the steady of system
It is qualitative.
It is upper it is any state in technical solution, further, the second output terminal and freezer evaporator of refrigerator evaporator
The second input terminal be connected.
In the technical scheme, the second output terminal of refrigerator evaporator is connected with the second input terminal of freezer evaporator
It connects, when carrying out refrigerator evaporator progress temperature-compensating or refrigeration, the circulation path of increased refrigerant improves whole heat
Exchange efficiency.
It is upper it is any state in technical solution, further, refrigeration equipment further include: second one-way valve, second one-way valve are set
It sets between the first output end of refrigerator evaporator and the input terminal of the first capillary, is evaporated for limiting refrigerant by refrigerating chamber
Device flows to the first capillary.
In the technical scheme, by the way that the second single-phase valve is arranged, limit the flow direction of refrigerant, in freezer evaporator and
It when refrigerator evaporator is freezed, avoids refrigerant under the throttling action of the first capillary, is inputted to refrigerator evaporator high
Refrigerant is pressed, and then influences refrigeration effect.
It is upper it is any state in technical solution, further, refrigeration equipment further include: assisted heating device, auxiliary heating dress
It sets and is connected with control device；Control device is also used to confirm the evaporator temperature values and/or refrigerating chamber of refrigerator evaporator
Refrigerating chamber current temperature value is current lower than the evaporator temperature values and/or freezing chamber of refrigerating chamber set temperature and freezer evaporator
Temperature value is higher than freezing chamber set temperature, and control assisted heating device heats refrigerator evaporator or refrigerating chamber, and
The evaporator temperature values and/or refrigerating chamber current temperature value of refrigerator evaporator are higher than refrigerating chamber set temperature, and control auxiliary adds
Refrigerator evaporator or refrigerating chamber are heated in thermal stopping.
In the technical scheme, it is connected, utilizes with the second end of the first switching valve in the first end for controlling the first switching valve
While refrigerant carries out temperature-compensating to refrigerator evaporator, temperature-compensating is carried out by additional increased assisted heating device,
So that the evaporator temperature or temperature of refrigerating chamber of refrigerator evaporator quickly increase, and then reduction reaches refrigerating chamber starting refrigeration and needs
The time asked reduces the waiting time that freezing chamber executes refrigeration.
It is upper it is any state in technical solution, further, refrigeration equipment further include: the second capillary, the second capillary are set
It sets between the output end of condenser and the output end of freezer evaporator.
In the technical scheme, by the way that the second capillary, throttling of the refrigerant that condenser exports in the second capillary is arranged
Pressure value is adjusted in the process, so that refrigerant adjusted, which enters in freezer evaporator and refrigerator evaporator, executes system
It is cold.
It is upper it is any state in technical solution, further, refrigeration equipment further include: device for drying and filtering, device for drying and filtering are set
It sets between condenser and the second capillary, the input terminal of device for drying and filtering is connected with the output end of condenser, dry filter
The output end of device is connected with the input terminal of the second capillary.
In the technical scheme, by the way that device for drying and filtering is arranged, impurity present in refrigerant is filtered, wherein impurity
Including but not limited to water and acid, and then protect the refrigerant in refrigeration system not by the pollution of liquid and solid pollutant, it is ensured that
The stability of system.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the refrigerator schematic diagram in related art scheme；
Fig. 2 shows the schematic block diagrams of the refrigeration equipment of one embodiment of the present of invention；
Fig. 3 shows the structural schematic diagram of the refrigeration equipment of one embodiment of the present of invention；
Fig. 4 shows the structural schematic diagram of the refrigeration equipment of another embodiment of the invention.
The corresponding relationship between appended drawing reference and component names in Fig. 3 and Fig. 4 are as follows:
32 refrigerator evaporators, 34 freezer evaporators, 36 assisted heating devices.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to be more clearly understood that aforementioned aspect of the present invention, feature and advantage
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not limited to following public affairs
The limitation for the specific embodiment opened.
In the embodiment of the present invention, as shown in Fig. 2, refrigeration equipment includes: that compressor, freezer evaporator and refrigerating chamber steam
Send out device；First switching valve, the output end of compressor are connected with the first end A of the first switching valve, the second end B of the first switching valve
It is connected with the input terminal of refrigerator evaporator；First input of the first output end and freezer evaporator of refrigerator evaporator
End is connected, and the output end of freezer evaporator is connected with the input terminal of compressor；Control device, control device are cut with first
It changes valve to be connected, the evaporator temperature values and/or refrigerating chamber current temperature value for confirming refrigerator evaporator are lower than refrigerating chamber
The evaporator temperature values and/or freezing chamber current temperature value of set temperature and freezer evaporator are higher than freezing chamber set temperature,
Compressor start is controlled, and the first end A of the first switching valve of control is connected with the second end B of the first switching valve.
In this embodiment, refrigeration equipment includes compressor, refrigerator evaporator, freezer evaporator, the first switching valve
And control device, wherein the first switching valve, the output end of compressor are connected with the first end A of the first switching valve, the first switching
The second end B of valve is connected with the input terminal of refrigerator evaporator；The first output end and freezing chamber evaporator of refrigerator evaporator
The first input end of device is connected, and the output end of freezer evaporator is connected with the input terminal of compressor, and control device is true
Recognize the evaporator temperature values of refrigerator evaporator and/or refrigerating chamber current temperature value is lower than refrigerating chamber set temperature and freezing chamber steams
The evaporator temperature values and/or freezing chamber current temperature value for sending out device are higher than freezing chamber set temperature, i.e., current freezer evaporator
The freezing chamber at place has refrigeration demand, and the refrigerating chamber where refrigerator evaporator does not have refrigeration demand, controls compressor
Starting, and the first end A for controlling the first switching valve is connected with the second end B of the first switching valve, the high temperature exported using compressor
Refrigerant flows through refrigerator evaporator, heats to refrigerator evaporator, so that evaporator temperature values and/or refrigerating chamber are currently warm
Angle value is higher than refrigerating chamber set temperature, and then is heated using the refrigerant of compressor output to refrigerator evaporator and/refrigerating chamber, with
Heater strip in related art scheme is avoided to heat brought drawback.
In one embodiment of the invention, as shown in Figures 2 and 3, the first output end of refrigerator evaporator 32 with it is cold
Freeze between the first input end of room evaporator 34 and is additionally provided with the first capillary, the input terminal and refrigerator evaporator of the first capillary
32 the first output end is connected, and the output end of the first capillary is connected with the first input end of freezer evaporator 34.
In this embodiment, defeated by the first of the first output end in refrigerator evaporator 32 and freezer evaporator 34
Enter and the first capillary be set between end, using the first capillary to the throttling process of refrigerant so that the refrigerant after throttling flow through it is cold
It can freeze to freezing chamber when freezing room evaporator 34, avoid causing to freeze during carrying out temperature-compensating to refrigerating chamber
Room temperature increases, and in turn results in the food spoilage stored in freezing chamber, while reducing energy consumption.
Wherein, when refrigerant flows through refrigerator evaporator 32, refrigerator evaporator 32 is used as interim condenser, via
The refrigerant of first capillary flows into freezer evaporator 34, and freezer evaporator 34 is used as evaporator at this time.
In one embodiment of the invention, as shown in Fig. 2, refrigeration equipment further include: condenser, the input terminal of condenser
It is connected with the third end C of the first switching valve, the output end of condenser is connected with the output end of freezer evaporator；Control dress
It sets and is also used to: detecting and confirm that the evaporator temperature values of refrigerator evaporator and/or refrigerating chamber current temperature value are higher than refrigerating chamber
The first end A of set temperature, the first switching valve of control is connected with the third end C of the first switching valve.
In this embodiment, by the way that condenser is arranged, the input terminal of condenser is connected with the third end C of the first switching valve
It connects, the output end of condenser is connected with the output end of freezer evaporator, and control device is also used to: detecting and confirm refrigerating chamber
The evaporator temperature values and/or refrigerating chamber current temperature value of evaporator are higher than refrigerating chamber set temperature, the first switching valve of control
First end A is connected with the third end C of the first switching valve so that compressor output refrigerant after the condensation of condenser,
Freeze to the freezer evaporator and refrigerator evaporator that flow through, and then ensures in refrigerating chamber and freezing chamber to there is refrigeration to need
Freeze when asking, reduces the food of storage because temperature change causes rotten possibility.
In one embodiment of the invention, as shown in Fig. 2, the output end of the second capillary, freezer evaporator it is defeated
The second switching valve, the output of the first end D and the second capillary of the second switching valve are equipped between outlet and the input terminal of compressor
End is connected, and the second end E of the second switching valve is connected with the output end of freezer evaporator, the third end F of the second switching valve
It is connected with the input terminal of compressor；Control device is connected with the second switching valve, for confirming the evaporation of refrigerator evaporator
The refrigerating chamber current temperature value of device temperature value and/or refrigerating chamber is lower than refrigerating chamber set temperature and the evaporator of freezer evaporator
Temperature value and/or freezing chamber current temperature value are higher than freezing chamber set temperature, and the second end E of the second switching valve of control is cut with second
The third end F conducting of valve is changed, or the evaporator temperature values and/or refrigerating chamber current temperature value that confirm refrigerator evaporator are higher than cold
Room set temperature is hidden, the first end D of the second switching valve of control is connected with the second end E of the second switching valve.
In this embodiment, it by the way that the second switching valve is arranged, is corresponded to using the flow path switching effect selection of the second switching valve
Path conducting, avoid when freezing to freezer evaporator and freezer evaporator, refrigerant weighs the defeated of the second capillary
Outlet is flowed directly into the input terminal of compressor, and refrigerant is caused directly to flow between compressor and the second capillary, can not be right
Freezer evaporator and freezer evaporator freeze, and then influence refrigeration effect.
In one embodiment of the invention, as shown in Fig. 2, the of the input terminal of refrigerator evaporator, the second switching valve
Be equipped with third switching valve between three end F and the input terminal of compressor, the first end G of third switching valve and refrigerator evaporator it is defeated
Enter end to be connected, the second end H of third switching valve is connected with the third end F of the second switching valve, the third end I of third switching valve
It is connected with the input terminal of compressor；Control device is connected with third switching valve, for confirming the evaporation of refrigerator evaporator
Device temperature value and/or refrigerating chamber current temperature value are lower than refrigerating chamber set temperature and the evaporator temperature values of freezer evaporator
And/or freezing chamber current temperature value is higher than freezing chamber set temperature, controls the second end H and third switching valve of third switching valve
Third end I conducting.
In this embodiment, by the way that third switching valve is arranged, the connected state between different port in third switching valve is utilized
State control flows into the path of compressor refrigerant, specifically, in the evaporator temperature values and/or refrigerating chamber of confirmation refrigerator evaporator
Current temperature value is lower than refrigerating chamber set temperature and the evaporator temperature values and/or freezing chamber current temperature value of freezer evaporator
Higher than freezing chamber set temperature, the second end H for controlling third switching valve is connected with the third end I of third switching valve, so as to cold
The refrigerant that hiding room evaporator carries out temperature-compensating flows into compressor by the path be connected, it is ensured that the circulation of refrigerant, and then really
The stability of insurance system, when being freezed, the first end G of control third switching valve is connected with the third end I of third switching valve,
And then realize the refrigerant circulation in process of refrigerastion.
Optionally, the feelings be connected in the second end H of third switching valve with the third end I of third switching valve in third switching valve
Under condition, the first end G of third switching valve can also be connected with the third end I of third switching valve, pass through control third switching valve
The aperture of the third end I of first end G and third switching valve, when so that the coolant quantity of compressor output is excessive, a part passes through the
Compressor is flowed back in the path that the first end G of three switching valves and the third end I of third switching valve are formed, and a part flows through refrigerating chamber steaming
Compressor is flowed back to after hair device, freezer evaporator, and then ensures the stability of system.
In one embodiment of the invention, pass through the shape of the first switching valve of control, the second switching valve and third switching valve
State realization switches between the temperature-compensating and refrigeration of refrigerating chamber.
In one embodiment of the invention, as shown in Fig. 2, refrigeration equipment further include: the first check valve, the first check valve
It is arranged between the second end B of the first switching valve and the input terminal of refrigerator evaporator, for limiting refrigerant by the first switching valve
Flow to refrigerator evaporator.
In this embodiment, by being set between the second end B of the first switching valve and the input terminal of refrigerator evaporator
First check valve avoids the occurrence of the refrigerant return for carrying out temperature-compensating to refrigerator evaporator, and then influences the steady of system
It is qualitative.
In one embodiment of the invention, as shown in Fig. 2, the second output terminal and freezing chamber evaporator of refrigerator evaporator
Second input terminal of device is connected.
In this embodiment, the second output terminal of refrigerator evaporator is connected with the second input terminal of freezer evaporator
It connects, when carrying out refrigerator evaporator progress temperature-compensating or refrigeration, the circulation path of increased refrigerant improves whole heat
Exchange efficiency.
In one embodiment of the invention, as shown in Fig. 2, refrigeration equipment further include: second one-way valve, second one-way valve
It is arranged between the first output end of refrigerator evaporator and the input terminal of the first capillary, is steamed for limiting refrigerant by refrigerating chamber
Hair device flows to the first capillary.
In this embodiment, by the way that the second single-phase valve is arranged, the flow direction of refrigerant is limited, in freezer evaporator and cold
It when hiding room evaporator is freezed, avoids refrigerant under the throttling action of the first capillary, inputs high pressure to refrigerator evaporator
Refrigerant, and then influence refrigeration effect.
In one embodiment of the invention, as shown in figure 4, refrigeration equipment further include: assisted heating device 36, auxiliary add
Thermal 36 is connected with control device；Control device be also used to confirm refrigerator evaporator 32 evaporator temperature values and/or
The refrigerating chamber current temperature value of refrigerating chamber lower than refrigerating chamber set temperature and the evaporator temperature values of freezer evaporator 34 and/or
Freezing chamber current temperature value is higher than freezing chamber set temperature, controls assisted heating device 36 to refrigerator evaporator 32 or refrigerating chamber
It is heated and the evaporator temperature values of refrigerator evaporator 32 and/or refrigerating chamber current temperature value is set higher than refrigerating chamber
Refrigerator evaporator 32 or refrigerating chamber are heated in temperature, the control stopping of assisted heating device 36.
In this embodiment, it is connected, utilizes with the second end B of the first switching valve in the first end A for controlling the first switching valve
While refrigerant carries out temperature-compensating to refrigerator evaporator 32, temperature benefit is carried out by additional increased assisted heating device 36
It repays, wherein assisted heating device 36 can be Hot-blast Heating, further, the High Temperature Gas that will be generated in compressor operational process
Body is transmitted in refrigerating chamber by hot channel, so that the evaporator temperature or temperature of refrigerating chamber of refrigerator evaporator 32 quickly rise
Height, and then the time for reaching refrigerating chamber starting refrigeration demand is reduced, reduce the waiting time that freezing chamber executes refrigeration.
In one embodiment of the invention, as shown in Fig. 2, refrigeration equipment further include: the second capillary, the second capillary
It is arranged between the output end of condenser and the output end of freezer evaporator.
In this embodiment, by the way that the second capillary, throttling of the refrigerant that condenser exports in the second capillary is arranged
Pressure value is adjusted in journey, so that refrigerant adjusted, which enters in freezer evaporator and refrigerator evaporator, executes refrigeration.
In one embodiment of the invention, as shown in Fig. 2, refrigeration equipment further include: device for drying and filtering, device for drying and filtering
It is arranged between condenser and the second capillary, the input terminal of device for drying and filtering is connected with the output end of condenser, dried
The output end of filter is connected with the input terminal of the second capillary.
In this embodiment, by the way that device for drying and filtering is arranged, impurity present in refrigerant is filtered, wherein impurity packet
Water and acid are included but be not limited to, and then protects the refrigerant in refrigeration system not by the pollution of liquid and solid pollutant, it is ensured that is
The stability of system.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of refrigeration equipment, which is characterized in that the refrigeration equipment includes compressor, freezer evaporator and refrigerating chamber evaporation
Device, the refrigeration equipment further include:
First switching valve, the output end of the compressor are connected with the first end of first switching valve, first switching
The second end of valve is connected with the input terminal of the refrigerator evaporator；
First output end of the refrigerator evaporator is connected with the first input end of the freezer evaporator, the freezing
The output end of room evaporator is connected with the input terminal of the compressor；
Control device, the control device is connected with first switching valve, for confirming the steaming of the refrigerator evaporator
Device temperature value and/or refrigerating chamber current temperature value are sent out lower than refrigerating chamber set temperature and the evaporator temperature of the freezer evaporator
Angle value and/or freezing chamber current temperature value are higher than freezing chamber set temperature, control the compressor start, and control described the
The first end of one switching valve is connected with the second end of first switching valve.
2. refrigeration equipment according to claim 1, which is characterized in that the first output end of the refrigerator evaporator and institute
State and be additionally provided with the first capillary between the first input end of freezer evaporator, the input terminal of first capillary with it is described cold
First output end of hiding room evaporator is connected, and the first of the output end of first capillary and the freezer evaporator is defeated
Enter end to be connected.
3. refrigeration equipment according to claim 1 or 2, which is characterized in that the refrigeration equipment further include:
Condenser, the input terminal of the condenser are connected with the third end of first switching valve, the output of the condenser
End is connected with the output end of the freezer evaporator；
The control device is also used to: being detected and is confirmed that the evaporator temperature values of the refrigerator evaporator and/or refrigerating chamber are worked as
Preceding temperature value is higher than the refrigerating chamber set temperature, control first switching valve first end and first switching valve the
The conducting of three ends.
4. refrigeration equipment according to claim 3, which is characterized in that
The is equipped between the output end of the condenser, the output end of the freezer evaporator and the input terminal of the compressor
The first end of two switching valves, second switching valve is connected with the output end of the condenser, and the of second switching valve
Two ends are connected with the output end of the freezer evaporator, the third end of second switching valve and the input of the compressor
End is connected；
The control device is connected with second switching valve, for confirming the evaporator temperature values of the refrigerator evaporator
And/or the refrigerating chamber current temperature value of refrigerating chamber is lower than refrigerating chamber set temperature and the evaporator temperature of the freezer evaporator
Value and/or freezing chamber current temperature value are higher than the freezing chamber set temperature, control second end and the institute of second switching valve
The third end conducting of the second switching valve is stated, or
The evaporator temperature values and/or refrigerating chamber current temperature value for confirming the refrigerator evaporator are set higher than the refrigerating chamber
Temperature, the first end for controlling second switching valve are connected with the second end of second switching valve.
5. refrigeration equipment according to claim 4, which is characterized in that
It is set between the input terminal of the refrigerator evaporator, the third end of second switching valve and the input terminal of the compressor
There is third switching valve, the first end of the third switching valve is connected with the input terminal of the refrigerator evaporator, the third
The second end of switching valve is connected with the third end of second switching valve, the third end of the third switching valve and the compression
The input terminal of machine is connected；
The control device is connected with the third switching valve, for confirming the evaporator temperature values of the refrigerator evaporator
And/or refrigerating chamber current temperature value lower than refrigerating chamber set temperature and the evaporator temperature values of the freezer evaporator and/or
Freezing chamber current temperature value is higher than the freezing chamber set temperature, and the second end and the third for controlling the third switching valve are cut
Change the third end conducting of valve.
6. refrigeration equipment according to any one of claim 1 to 3, which is characterized in that the refrigeration equipment further include:
First check valve, first check valve be arranged in first switching valve second end and the refrigerator evaporator
Between input terminal, the refrigerator evaporator is flowed to by first switching valve for limiting refrigerant.
7. refrigeration equipment according to claim 6, which is characterized in that the second output terminal of the refrigerator evaporator and institute
The second input terminal for stating freezer evaporator is connected.
8. refrigeration equipment according to claim 7, which is characterized in that the refrigeration equipment further include:
The first output end and first capillary of the refrigerator evaporator is arranged in second one-way valve, the second one-way valve
Between input terminal, first capillary is flowed to by the refrigerator evaporator for limiting refrigerant.
9. refrigeration equipment according to any one of claim 1 to 3, which is characterized in that the refrigeration equipment further include:
Assisted heating device, the assisted heating device are connected with the control device；
The control device is also used to confirm that the evaporator temperature values of the refrigerator evaporator and/or the refrigerating chamber of refrigerating chamber are worked as
Preceding temperature value is current lower than the evaporator temperature values and/or freezing chamber of the refrigerating chamber set temperature and the freezer evaporator
Temperature value is higher than the freezing chamber set temperature, controls the assisted heating device to the refrigerator evaporator or the refrigeration
Room is heated, and
The evaporator temperature values and/or refrigerating chamber current temperature value of the refrigerator evaporator are higher than refrigerating chamber setting temperature
Degree controls the assisted heating device stopping and heats to the refrigerator evaporator or the refrigerating chamber.
10. refrigeration equipment according to claim 3, which is characterized in that the refrigeration equipment further include:
The output end of the condenser and the output of the freezer evaporator is arranged in second capillary, second capillary
Between end.
11. refrigeration equipment according to claim 10, which is characterized in that the refrigeration equipment further include:
Device for drying and filtering, the device for drying and filtering is arranged between the condenser and second capillary, described dried
The input terminal of filter is connected with the output end of the condenser, the output end of the device for drying and filtering and second capillary
Input terminal be connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910411122.2A CN110094922B (en) | 2019-05-17 | 2019-05-17 | Refrigeration device |
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| CN201910411122.2A CN110094922B (en) | 2019-05-17 | 2019-05-17 | Refrigeration device |
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| CN110094922B CN110094922B (en) | 2021-07-13 |
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| CN112146329A (en) * | 2020-09-04 | 2020-12-29 | 海信容声(广东)冷柜有限公司 | Refrigeration equipment and control method thereof |
| CN114646175A (en) * | 2022-03-23 | 2022-06-21 | 创维电器股份有限公司 | Direct-cooling type single-system double-temperature-control refrigeration method |
| CN115167559A (en) * | 2022-06-23 | 2022-10-11 | 北京京仪自动化装备技术股份有限公司 | Control method and control system of temperature control system and temperature control system |
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|---|---|
| CN110094922B (en) | 2021-07-13 |
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