CN101936635A - Cascade storage temperature refrigerator and temperature control method - Google Patents
Cascade storage temperature refrigerator and temperature control method Download PDFInfo
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- CN101936635A CN101936635A CN2009100652930A CN200910065293A CN101936635A CN 101936635 A CN101936635 A CN 101936635A CN 2009100652930 A CN2009100652930 A CN 2009100652930A CN 200910065293 A CN200910065293 A CN 200910065293A CN 101936635 A CN101936635 A CN 101936635A
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- 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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a cascade storage temperature refrigerator, which comprises a compressor (21), a condensation evaporator (23), a refrigerating chamber evaporator (34) and an electric control device (36), wherein the condensation evaporator (23) is provided with a low pressure inlet (22C); a bypass pipeline (35) is arranged between a refrigerant pipeline before the inlet of the refrigerating chamber evaporator (34) and the low pressure inlet (22C) of the condensation evaporator (23); and the bypass pipeline (35) is provided with an electromagnetic valve (33) connected with the electric control device (36). When the temperature of a freezing chamber is higher and the temperature of a refrigerating chamber has reached the lower limit, the electromagnetic valve is opened to reduce the refrigerant passing through the refrigerating chamber evaporator, so that the temperature conditions of two chambers of the refrigerator are in the set ranges, and the problems caused by not matched temperatures of the two chambers in the prior art are avoided. The invention also discloses a temperature control method for the cascade storage temperature refrigerator. Corresponding control methods are provided for various temperature conditions of the refrigerating chamber and the freezing chamber, so the temperatures of the two chambers of the refrigerator are better matched.
Description
Technical field
The present invention relates to a kind of from overlapping two-storage temperature refrigerator and temperature-controlled process thereof.
Background technology
The major control mode of two-storage temperature refrigerator has single control and two kinds of two controls at present.For the single control of two temperature refrigerator, refrigerating chamber and refrigerating chamber refrigerating capacity are to carry out nature by the size of each flash-pot to distribute, this has just caused refrigerating chamber and the area matched situation of difficult of freezer evaporator, the start-stop of compressor is controlled by refrigerating chamber only simultaneously, and refrigerating chamber and freezing chamber evaporator area are generally 25 ℃ of designs down in a certain specific environment temperature, therefore freezer temperature control is not accurate enough, the refrigerating chamber surfusion may appear when hot environment, when low temperature environment, the refrigerating chamber superheating phenomenon may occur, be difficult to satisfy wide climatic environment.
The refrigerating chamber of double temperature double control refrigerator and the temperature of refrigerating chamber are independently controlled by temperature controller respectively, overcome the shortcoming that the single control of two temperature refrigerator is difficult for coupling preferably.But in actual production and using, this double temperature double control mode is all controlled compressor because of freezing, two temperature controllers of refrigeration, sometimes a temperature controller just shuts down, another requires start again at once, increase because of the refrigeration system lack of equilibrium causes compressor start power, start difficulty and thermal protector action etc., influence the service life of compressor and annex thereof, frequently open, shut down, therefore power consumption also increase; In addition, the evaporating temperature that refrigerating chamber is low excessively also causes goods drying loss increase in the refrigerating chamber.
In order to solve the problems referred to above that traditional two-storage temperature refrigerator exists, as shown in Figure 1, one-level fractional condensation after having occurred in recent years improving is used for two-storage temperature refrigerator from the overlapping circulation, this refrigerator comprises compressor 1 and condenser/evaporator 8, and condenser/evaporator 8 is provided with high pressure import and export 8A, 8B and low pressure import and export 8C, 8D.The exhaust outlet of compressor 1 is communicated with condenser 2 and gas-liquid separator 3 successively by refrigerant line, and the bottom of gas-liquid separator 3 is communicated with first device for drying and filtering 4, first throttle device 5 and refrigerator evaporator 7 successively by refrigerant line; The top of gas-liquid separator 3 is connected with the high-pressure inlet 8A of condenser/evaporator 8 by refrigerant line, the high-pressure outlet 8B of condenser/evaporator 8 is communicated with successively by refrigerant line and is provided with second device for drying and filtering 9, second throttling arrangement 10 and freezer evaporator 11, the outlet of the outlet of freezer evaporator 11, refrigerator evaporator 7 is connected by the low pressure inlet 8C of threeway mixed node 12 with condenser/evaporator 8, and the low tension outlet of condenser/evaporator 8 is connected by the air entry of refrigerant line with compressor 1.In refrigerating chamber and refrigerating chamber, be equipped with temperature sensor 13, described temperature sensor 13 and an electric control gear 14 signal communication, electric control gear 14 is electrically connected with compressor 1.The flow direction of this refrigerator refrigerant is: mixed refrigerant stream overcompression machine 1, condenser 2, isolate through gas-liquid separator 3 and to be rich in low boiling point refrigerant stream and to be rich in higher boiling cold-producing medium stream, be rich in higher boiling cold-producing medium (liquid phase refrigerant in the gas-liquid separator 3) and flow through device for drying and filtering 4, throttling arrangement 5, hide chamber evaporimeter 7 and be mixed into condenser/evaporator low pressure inlet 8C with being rich in low boiling point refrigerant stream again, flow back to compressor 1 at last and form the circulation of higher boiling cold-producing medium; Be rich in low boiling point refrigerant (vapor phase refrigerant in the gas-liquid separator 3) and flow through second device for drying and filtering 9, second throttling arrangement 10, freezer evaporator 11 and be mixed into the low pressure inlet 8C of condenser/evaporator 8 and finally be back to compressor 1 with being rich in higher boiling cold-producing medium stream again, form the low boiling point refrigerant circulation.
But for such one from the overlapping two-storage temperature refrigerator; because the influence of factors such as separating effect; can not accurately calculate from what condenser/evaporator was separated and be rich in height; design parameters such as the flow of lower boiling two strands of cold-producing mediums stream and proportioning; the variation of operating mode simultaneously can have a significant impact two strands of refrigerant flows after separating and proportioning; so only rely on design to refrigerator evaporator area and freezer evaporator area; use the independent temperature control of refrigerating chamber to be difficult to realize the coupling of two room temperature degree; start compressor in the time of can occurring two room temperature degree equally and do not match the refrigeration system lack of equilibrium that is caused and cause compressor start power to increase; start problems such as difficulty and thermal protector action; influence the service life of compressor and annex thereof, high frequent is opened; shutting down has also increased power consumption.
Summary of the invention
The object of the present invention is to provide a kind of can change the refrigerating chamber refrigerant flow from the overlapping two-storage temperature refrigerator, the temperature of two chambers of this refrigerator more more the coupling.
For achieving the above object, of the present invention from the overlapping two-storage temperature refrigerator, comprise compressor, condenser/evaporator and electric control gear, condenser/evaporator is provided with high pressure import and export and low pressure import and export; The exhaust outlet of compressor is communicated with condenser and gas-liquid separator successively by refrigerant line, and the bottom of gas-liquid separator is communicated with first device for drying and filtering, first throttle device and refrigerator evaporator successively by refrigerant line; The top of gas-liquid separator is connected with the high-pressure inlet of condenser/evaporator by refrigerant line, the high-pressure outlet of condenser/evaporator is communicated with successively by refrigerant line and is provided with second device for drying and filtering, second throttling arrangement and freezer evaporator, the outlet of freezer evaporator, the outlet of refrigerator evaporator is connected with the low pressure inlet of condenser/evaporator by the threeway mixed node, the low tension outlet of condenser/evaporator is connected with the air entry of compressor by refrigerant line, in refrigerating chamber and refrigerating chamber, be equipped with temperature sensor, a described temperature sensor and an electric control gear signal communication, electric control gear is electrically connected with compressor, it is characterized in that: be provided with bypass line between the refrigerant line before the refrigerator evaporator inlet and the low pressure inlet of condenser/evaporator, bypass line is provided with magnetic valve, and magnetic valve is connected with electric control gear.
As a kind of improvement of the present invention, the refrigerant line before the compressor air suction mouth is provided with reservoir.
Of the present invention have following advantage from the overlapping two-storage temperature refrigerator:
1. the setting of bypass line and magnetic valve, making can be controlled by the refrigerant flow of refrigerator evaporator, when the higher but temperature of refrigerating chamber of freezer temperature has reached lower limit, can opens solenoid valve to reduce refrigerant flow by refrigerator evaporator, thereby temperature of refrigerating chamber no longer descends or slightly rise when making freezer temperature continue to descend, the temperature regime that so just makes two chambers of refrigerator all within the scope of setting, the variety of issue of having avoided two room temperature degree in the past not match and caused.
2. having more than needed may appear in condenser/evaporator low temperature side cold in the magnetic valve unlatching process, may make the cold-producing medium that enters compressor be in the two-phase state like this, causes occurring the liquid hit phenomenon damage equipment.Refrigerant line before the compressor air suction mouth is provided with reservoir, has avoided liquid phase refrigerant to enter compressor, thereby has avoided liquid hit phenomenon.
The present invention also aims to provides a kind of temperature-controlled process at above-mentioned from the overlapping two-storage temperature refrigerator.
For achieving the above object, the temperature-controlled process from the overlapping two-storage temperature refrigerator of the present invention is as follows:
Store the ceiling temperature of refrigerating chamber and the ceiling temperature and the lower limit temperature of lower limit temperature and refrigerating chamber in the described electric control gear; Refrigerator is opened the operation of back electric control gear control compressor starts, refrigerating chamber cooling but do not reduce to the refrigerating chamber lower limit temperature as yet and refrigerating chamber cooling but do not reduce to the refrigerating chamber lower limit temperature as yet, electric control gear control this moment closed electromagnetic valve, compressor continuous service; After compressor continuous service a period of time, if refrigerating chamber is cooled to the refrigerating chamber lower limit temperature, freezer temperature does not also drop to the refrigerating chamber lower limit temperature, and electric control gear control this moment magnetic valve is opened, and compressor continues operation; Electric control gear control compressor shutdown when freezer temperature is reduced to the refrigerating chamber lower limit temperature; After compressor continuous service a period of time, if temperature of refrigerating chamber descends but does not reduce to the refrigerating chamber lower limit temperature as yet, and freezer temperature has been reduced to the refrigerating chamber lower limit temperature, and closed electromagnetic valve, compressor are opened compressor shutdown when temperature of refrigerating chamber is reduced to the refrigerating chamber lower limit temperature at this moment; After compressor continuous service a period of time, if freezer temperature is just reduced to the refrigerating chamber lower limit temperature when temperature of refrigerating chamber is reduced to the refrigerating chamber lower limit temperature, electric control gear control this moment compressor shutdown; After the compressor shutdown, when temperature of refrigerating chamber surpassed its ceiling temperature or freezer temperature and surpasses its ceiling temperature, electric control gear control compressor started again.
Of the present invention simple from overlapping two-storage temperature refrigerator temperature-controlled process step, compressor is opened all temps situation of back refrigerating chamber, refrigerating chamber all to the control corresponding method should be arranged.When temperature of refrigerating chamber reaches lower limit and freezer temperature when still higher, existing temperature-controlled process starts because of high frequent can appear in the temperature that can't mate two chambers, the phenomenon that stops, temperature-controlled process of the present invention then can pass through opens solenoid valve, thereby reduce the refrigerating capacity that reduces refrigerator evaporator by the refrigerant flow of refrigerator evaporator, the temperature of refrigerating chamber can be not low excessively when refrigerating chamber continues cooling, so just make the temperature regime of two chambers of refrigerator can both reach the temperature requirement of setting, the variety of issue of having avoided two room temperature degree not match and bring.
Description of drawings
Fig. 1 is existing structural representation from the overlapping two-storage temperature refrigerator;
Fig. 2 is the structural representation from the overlapping two-storage temperature refrigerator of the present invention;
Fig. 3 is the temperature-controlled process schematic diagram from the overlapping two-storage temperature refrigerator of the present invention.
The specific embodiment
As shown in Figure 2, of the present invention from the overlapping two-storage temperature refrigerator, comprise compressor 21 and condenser/evaporator 22, condenser/evaporator 22 is provided with high-pressure inlet 22A, high-pressure outlet 22B and low pressure inlet 22C, low tension outlet 22D; The exhaust outlet 21A of compressor 21 is communicated with condenser 23 and gas-liquid separator 24 successively by refrigerant line, and the bottom of gas-liquid separator 24 is communicated with first device for drying and filtering 25, first throttle device 26 successively by refrigerant line and is located at refrigerator evaporator 34 in the refrigerating chamber 37; The top of gas-liquid separator 24 is connected with the high-pressure inlet 22A of condenser/evaporator 22 by refrigerant line, the high-pressure outlet 22B of condenser/evaporator 22 is communicated with successively by refrigerant line and is provided with second device for drying and filtering 28, second throttling arrangement 29 and be located at freezer evaporator 30 in the refrigerating chamber 38, the outlet of freezer evaporator 30, the outlet of refrigerator evaporator 27 is connected by the low pressure inlet 22C of threeway mixed node 31 with condenser/evaporator 22, the low tension outlet 22D of condenser/evaporator 22 is connected with the air entry 21B of compressor 21 by refrigerant line, in refrigerating chamber 37 and refrigerating chamber 38, be equipped with temperature sensor 39, described temperature sensor 39 and an electric control gear 36 signal communication, electric control gear 36 is electrically connected with compressor 21, be provided with bypass line 35 between the refrigerant line before the refrigerator evaporator 34 and the low pressure inlet 22C of condenser/evaporator 22, bypass line 35 is provided with magnetic valve 33; Electric control gear 36 is electrically connected with magnetic valve 33.Be provided with reservoir 32 on the refrigerant line before compressor 21 air entry 21B.Wherein, first, second throttling arrangement 26,29 can be a capillary, also can be throttling devices such as choke valve.
As Fig. 3 and shown in Figure 2, of the present inventionly be from overlapping two-storage temperature refrigerator temperature-controlled process:
Store the ceiling temperature T of refrigerating chamber in the described electric control gear 36
bWith lower limit temperature T
aAnd the ceiling temperature T of refrigerating chamber
dWith lower limit temperature T
cRefrigerator is opened back electric control gear 36 control compressors 21 and is brought into operation, and refrigerating chamber 37 is lowered the temperature but do not reduced to refrigerating chamber lower limit temperature T as yet
aAnd refrigerating chamber 38 is lowered the temperature but is not reduced to refrigerating chamber lower limit temperature T as yet
c, electric control gear 36 control this moment magnetic valves 33 cut out, compressor 21 continuous services.This moment, the circulation of system refrigerant was first kind of cyclic process: mixed refrigerant stream overcompression machine 21, condenser 23, isolate through gas-liquid separator 24 and to be rich in low boiling point refrigerant stream and to be rich in higher boiling cold-producing medium stream, be rich in higher boiling cold-producing medium stream (liquid state) flow through first device for drying and filtering 25, first throttle device 26, refrigerator evaporator 34 again be rich in low boiling point refrigerant and flow in threeway mixed node 31 places and mix, enter condenser/evaporator 22 then, form the circulation of higher boiling cold-producing medium thereby finally be back to compressor 21; Be rich in low boiling point refrigerant stream through second device for drying and filtering 28, second throttling arrangement 29, freezer evaporator 30 again be rich in the higher boiling cold-producing medium and flow in threeway mixed node 31 places and mix, enter condenser/evaporator 22 then, form the low boiling point refrigerant circulation thereby finally be back to compressor 21.
The first kind situation of compressor 21 continuous services after a period of time is if refrigerating chamber 37 is cooled to refrigerating chamber lower limit temperature T
a, refrigerating chamber 38 temperature also do not drop to refrigerating chamber lower limit temperature T
c, this moment, electric control gear 36 control magnetic valves 33 were opened, and compressor 21 continues operation; As freezer temperature T
2Reduce to refrigerating chamber lower limit temperature T
cThe time electric control gear 36 control compressors 21 shut down.This moment, the circulation of system refrigerant was second kind of cyclic process: mixed refrigerant stream overcompression machine 21, condenser 23, isolate through gas-liquid separator 24 and to be rich in low boiling point refrigerant stream (gaseous state) and to be rich in higher boiling cold-producing medium stream (liquid state): be rich in higher boiling cold-producing medium stream through 25, No. 1 capillary 5 of first device for drying and filtering after the branch two-way, one the tunnel flow through hide chamber evaporimeter 7 again be rich in low boiling point refrigerant stream and be mixed into condenser/evaporator 8, another road directly enters condenser/evaporator, forms the circulation of higher boiling cold-producing medium; Be rich in low boiling point refrigerant and flow through 9, No. 2 capillaries 10 of No. 2 devices for drying and filtering, freezer evaporator 11 is mixed into condenser/evaporator 8 with being rich in higher boiling cold-producing medium stream again, forms the low boiling point refrigerant circulation.Because magnetic valve 6 is opened, be rich in the flow through part that is by-pass out behind the high temperature level capillary-compensated of higher boiling cold-producing medium and directly enter condenser/evaporator, the refrigerant flow of refrigerator evaporator so on the one hand can reduce to flow through, make temperature of refrigerating chamber that certain rise be arranged, and remain on a certain temperature value between the upper and lower limit temperature, the part of refrigerant that is bypassed on the other hand in the condenser/evaporator can increase the heat exchange amount of condenser/evaporator, thereby increases the refrigerating capacity of low temperature level.So, compressor continues operation, and temperature of refrigerating chamber remains between the refrigerating chamber upper and lower limit temperature, compressor shutdown when freezer temperature is reduced to the refrigerating chamber lower limit temperature, and circulation stops.
If the second kind situation of compressor 21 continuous services after a period of time is the temperature T of refrigerating chamber 37
1Descend but do not reduce to refrigerating chamber lower limit temperature T as yet
a, and refrigerating chamber 38 temperature T
2Reduced to refrigerating chamber lower limit temperature T
c, this moment magnetic valve 33 close, compressor 21 opens, as temperature of refrigerating chamber T
1Reduce to refrigerating chamber lower limit temperature T
aThe time compressor 21 shut down.Before magnetic valve 33 cut out 21 shutdown of back compressor, the cyclic process of the cold-producing medium of system was with first kind of cyclic process.
If compressor 21 continuous services the third situation after a period of time is temperature of refrigerating chamber T
1Reduce to refrigerating chamber lower limit temperature T
aThe time freezer temperature T
2Just reduce to refrigerating chamber lower limit temperature T
c, this moment, electric control gear 36 control compressors 21 were shut down.
After compressor 21 was shut down, temperature of refrigerating chamber T1 surpassed its ceiling temperature T
bOr freezer temperature T
2Surpass its ceiling temperature T
dThe time, electric control gear 36 control compressors 21 restart.
Of the present invention simple in structure from the overlapping two-storage temperature refrigerator, easy to use, its temperature-controlled process step is simple, compressor 21 open the back for all temps situation of refrigerating chamber 37, refrigerating chamber 38 all to the control corresponding method should be arranged, can make the temperature regime of two chambers of refrigerator can both reach the temperature requirement of setting, the variety of issue of having avoided two room temperature degree not match and bring.
Claims (3)
1. one kind from the overlapping two-storage temperature refrigerator, comprises compressor (21), condenser/evaporator (23) and electric control gear (36), and condenser/evaporator (22) is provided with high pressure import and export (22A), (22B) and low pressure import and export (22C), (22D); The exhaust of compressor (21A) is communicated with condenser (23) and gas-liquid separator (24) successively by refrigerant line, and the bottom of gas-liquid separator (24) is communicated with first device for drying and filtering (25), first throttle device (26) and refrigerator evaporator (34) successively by refrigerant line; The top of gas-liquid separator (24) is connected with the high-pressure inlet (22A) of condenser/evaporator by refrigerant line, the high-pressure outlet of condenser/evaporator (22B) is communicated with successively by refrigerant line and is provided with second device for drying and filtering (28), second throttling arrangement (29) and freezer evaporator (30), the outlet of freezer evaporator (30), the outlet of refrigerator evaporator (34) is connected with low the compressing into (22C) of condenser/evaporator by threeway mixed node (31), the low tension outlet of condenser/evaporator (22D) is connected with air-breathing (21B) of compressor by refrigerant line, in refrigerating chamber (37) and refrigerating chamber (38), be equipped with temperature sensor (39), described temperature sensor (39) and an electric control gear (36) signal communication, electric control gear (36) is electrically connected with compressor (21), it is characterized in that: be provided with bypass line (35) between the refrigerant line before refrigerator evaporator (34) inlet and the low pressure inlet (22C) of condenser/evaporator, bypass line (35) is provided with magnetic valve (33), and magnetic valve (33) is connected with electric control gear (36).
2. according to claim 1 from the overlapping two-storage temperature refrigerator, it is characterized in that: the preceding refrigerant line of compressor air suction mouth (21B) is provided with reservoir (32).
3. from the temperature-controlled process of overlapping two-storage temperature refrigerator, it is characterized in that: the ceiling temperature (T that stores refrigerating chamber in the described electric control gear (36)
b) and lower limit temperature (T
a) and the ceiling temperature (T of refrigerating chamber
d) and lower limit temperature (T
c);
Refrigerator is opened back electric control gear (36) control compressor (21) and is brought into operation, and refrigerating chamber (37) is lowered the temperature but do not reduced to refrigerating chamber lower limit temperature (T as yet
a) and refrigerating chamber (38) cooling but do not reduce to refrigerating chamber lower limit temperature (T as yet
c), electric control gear this moment (36) control magnetic valve (33) cuts out, compressor (21) continuous service;
Compressor (21) continuous service is after a period of time, if refrigerating chamber (37) is cooled to refrigerating chamber lower limit temperature (T
a), freezer temperature does not also drop to refrigerating chamber lower limit temperature (T
c), electric control gear this moment (36) control magnetic valve (33) is opened, and compressor (21) continues operation; When refrigerating chamber (38) temperature is reduced to refrigerating chamber lower limit temperature (T
c) time electric control gear (36) control compressors (21) shut down;
Compressor (21) continuous service is after a period of time, if refrigerating chamber (37) temperature descends but do not reduce to refrigerating chamber lower limit temperature (T as yet
a), and refrigerating chamber (38) temperature has been reduced to refrigerating chamber lower limit temperature (T
c), magnetic valve this moment (33) cuts out, compressor (21) is opened, when refrigerating chamber (37) temperature is reduced to refrigerating chamber lower limit temperature (T
a) time compressor (21) shut down;
Compressor (21) continuous service is after a period of time, if refrigerating chamber (37) temperature is reduced to refrigerating chamber lower limit temperature (T
a) time freezer temperature just reduce to refrigerating chamber lower limit temperature (T
a), electric control gear this moment (36) control compressor (21) is shut down;
After compressor (21) was shut down, refrigerating chamber (37) temperature surpassed its ceiling temperature (T
b) or freezer temperature surpass its ceiling temperature (T
d) time, electric control gear (36) control compressor (21) restarts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100652930A CN101936635A (en) | 2009-06-29 | 2009-06-29 | Cascade storage temperature refrigerator and temperature control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100652930A CN101936635A (en) | 2009-06-29 | 2009-06-29 | Cascade storage temperature refrigerator and temperature control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101936635A true CN101936635A (en) | 2011-01-05 |
Family
ID=43390093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100652930A Pending CN101936635A (en) | 2009-06-29 | 2009-06-29 | Cascade storage temperature refrigerator and temperature control method |
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| Country | Link |
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| CN (1) | CN101936635A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635767A (en) * | 2011-11-25 | 2014-03-12 | J·A·马丁内斯阿罗卡 | Electrical appliance that can also be used in industry for cooling or freezing products with maximum speed |
| CN111141069A (en) * | 2020-01-19 | 2020-05-12 | 无锡冠亚恒温制冷技术有限公司 | Refrigeration heating temperature control system for aerospace part testing |
| CN112083743A (en) * | 2020-09-07 | 2020-12-15 | 赛得利(江苏)纤维有限公司 | A etiolation temperature regulating system for viscose fiber production |
| CN113959174A (en) * | 2021-10-28 | 2022-01-21 | Tcl家用电器（合肥）有限公司 | Refrigerator temperature control system, refrigerator and refrigerator temperature control method |
| CN114440484A (en) * | 2022-02-08 | 2022-05-06 | 珠海格力电器股份有限公司 | Control method of double-temperature self-overlapping refrigerator |
| CN114562848A (en) * | 2022-02-08 | 2022-05-31 | 珠海格力电器股份有限公司 | Refrigerator refrigerating system with humidity adjusting function, refrigerator and control method |
-
2009
- 2009-06-29 CN CN2009100652930A patent/CN101936635A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635767A (en) * | 2011-11-25 | 2014-03-12 | J·A·马丁内斯阿罗卡 | Electrical appliance that can also be used in industry for cooling or freezing products with maximum speed |
| CN111141069A (en) * | 2020-01-19 | 2020-05-12 | 无锡冠亚恒温制冷技术有限公司 | Refrigeration heating temperature control system for aerospace part testing |
| CN112083743A (en) * | 2020-09-07 | 2020-12-15 | 赛得利(江苏)纤维有限公司 | A etiolation temperature regulating system for viscose fiber production |
| CN112083743B (en) * | 2020-09-07 | 2021-07-09 | 赛得利(江苏)纤维有限公司 | A etiolation temperature regulating system for viscose fiber production |
| CN113959174A (en) * | 2021-10-28 | 2022-01-21 | Tcl家用电器（合肥）有限公司 | Refrigerator temperature control system, refrigerator and refrigerator temperature control method |
| CN114440484A (en) * | 2022-02-08 | 2022-05-06 | 珠海格力电器股份有限公司 | Control method of double-temperature self-overlapping refrigerator |
| CN114562848A (en) * | 2022-02-08 | 2022-05-31 | 珠海格力电器股份有限公司 | Refrigerator refrigerating system with humidity adjusting function, refrigerator and control method |
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Application publication date: 20110105 |