CN108151348A - A kind of double-compressor refrigeration system and control method for single space refrigeration - Google Patents
A kind of double-compressor refrigeration system and control method for single space refrigeration Download PDFInfo
- Publication number
- CN108151348A CN108151348A CN201711278475.7A CN201711278475A CN108151348A CN 108151348 A CN108151348 A CN 108151348A CN 201711278475 A CN201711278475 A CN 201711278475A CN 108151348 A CN108151348 A CN 108151348A
- Authority
- CN
- China
- Prior art keywords
- compressor
- refrigeration system
- refrigeration
- temperature
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
-
- 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
- F25B41/40—Fluid line arrangements
Abstract
The present invention relates to a kind of double-compressor refrigeration system and control method for single space refrigeration, which includes the first refrigeration system and the second refrigeration system, and the first refrigeration system includes the first compressor, first condenser, first device for drying and filtering, the first capillary, evaporator and defrost solenoid valve；Second refrigeration system includes the second compressor, the second condenser, the second device for drying and filtering, the second capillary and evaporator；Hot-gas bypass pipe between the first compressor outlet and evaporator is installed, defrost solenoid valve is installed among hot-gas bypass pipe；Double compression refrigerating systems according to the present invention, are mainly used for single space refrigeration, coordinate suitable control method, and the refrigerating capacity and single space load that can adjust double-pressing machine system match, and achieve the effect that energy-saving.
Description
Technical field
The present invention relates to refrigeration system technical fields, and in particular to a kind of double-compressor for single space refrigeration freezes
System and control method.
Background technology
As people’s lives level is continuously improved, the usage amount of refrigerator increasingly increases, and refrigerator is coming into huge numbers of families'
Meanwhile application is also to spread all trades and professions, it may be said that the market of the current refrigerator of China is highly developed.With common family
Mostly it is household refrigerator-freezer difference with refrigerator, often only there are one refrigeration temperature areas for freezer product, are only responsible for carrying out to single space
Refrigeration, such as beverage cabinet, ice cream cabinet, fresh cabinet etc..
At present, the refrigeration system for being widely used in refrigerator is the steam compression type circulatory system of single compressor, mainly by fixed
The components such as fast compressor, condenser, device for drying and filtering, capillary and evaporator form, and using pure matter such as R290 or R600a
As refrigeration working medium.Generally, the refrigerating capacity and power consumption of freezer product are all one of its most important performance indicators.Refrigerator
There are a rapid process to drag down temperature after cargo is put into, refrigeration capacity requirement at this moment is much larger than required during its stable operation
Refrigerating capacity, in order to pursue the refrigerating capacity of freezer product, the pressure that generally a refrigerating capacity can be selected very big when matching compressor
Contracting machine.But the refrigerator system overwhelming majority of this single compressor uses the working method of interval, the bigger compressor of refrigerating capacity
In stable operation, start/stop of compressor will be more frequent, this is unfavorable for the energy saving of refrigerator.In addition, match big refrigerating capacity
Compressor cannot but make full use of, this is also a kind of waste to the performance of compressor.Freezer product currently on the market is big absolutely
There is this in majority, the volume of refrigerator is bigger, and matched compressor refrigerating capacity is bigger, and energy-saving effect is also poorer.
The appearance of frequency-changeable compressor can partly solve the problems, such as this, but its high cost greatly inhibits frequency conversion press cold
The application of cabinet product.At present, it almost can be ignored using the market proportion shared by the refrigerator of frequency-changeable compressor.Compared to list
Compressor refrigeration system only simply opens-stop control mode, though the refrigerating capacity of each compressor of double-compressor refrigeration system
It can not so change, but coordinate increasingly complex control mode, the total refrigerating capacity of double compressor system but can be in certain journey
It is simple on degree to adjust, provide new possibility to solve problems.
The double-compressor refrigeration system in technical field is applied to refrigerator product mostly at present, and arrangement form is similar to
Shown in Fig. 1, using the design of two simple independent cooling cycles, each refrigeration cycle is responsible for some fixed compartment, is had
Energy-efficient design function.Another theoretic double-compressor refrigeration system, arrangement form is similar to Fig. 2 and by two sets
Refrigeration system is each responsible for the cooling of freezer compartment of refrigerator and refrigerating chamber, but can pass through supercooling between its refrigerating chamber and refrigerating chamber
Mode realizes energy transfer.A kind of this scheme is substantially remained is freezed using double-compressor refrigeration system to two warm areas, also
Apply to refrigerator field, and the electric refrigerator system of practical application this scheme almost without.Therefore, we have proposed a kind of new
The double-compressor refrigeration system scheme for single space, to solve the compressor type selecting brought by freezer product work characteristics
And the problems such as energy-saving.
Invention content
The present invention proposes a kind of double-compressor refrigeration system and control method for single space refrigeration, including first
Refrigeration system and the second refrigeration system, the first refrigeration system and the second refrigeration system can both work together realizes refrigeration effect,
It can also work alternatively or respectively work independently；Therefore, can be changed to a certain extent entirely by rational control mode
Double compressor system refrigerating capacity so that load variations when being worked normally with refrigerator match, and reach energy-efficient effect.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of double-compressor refrigeration system for single space refrigeration, including the first refrigeration system and the second refrigeration system
System；First refrigeration system include the first compressor 1 and be connected in turn the first compressor 1 outlet the first condenser 2,
The first backheat is passed through in first device for drying and filtering 3, the first regenerative apparatus 4, the first capillary 5 and evaporator 6, the outlet of evaporator 6
Device 4 is connected with 1 entrance of the first compressor；The outlet of first compressor 1 also entering by defrost solenoid valve 7 and evaporator 6
Mouth is connected；Second refrigeration system includes the second compressor 8 and is connected to the second cold of the second compressor 8 outlet in turn
Condenser 9, the second device for drying and filtering 10, the second regenerative apparatus 11, the second capillary 12 and evaporator 6, the outlet of evaporator 6 are passed through
Second regenerative apparatus 11 is connected with 8 entrance of the second compressor.
The double-compressor refrigeration system freezes for single space, can either two sets of refrigeration systems work at the same time,
A set of refrigeration system can only be run or take the alternately method of operation as needed.
First compressor 1 is identical with the refrigerating capacity of the second compressor 8 or refrigerating capacity small one and large one, two sets of refrigeration systems
A unified main auxiliary form.
Two sets of refrigeration systems are using same refrigerant or respectively using different refrigerants, such as the first refrigeration system
Using refrigerant R290, the second refrigeration system uses refrigerant R600a.
The defrost solenoid valve 7 is closed in normal refrigeration, is opened when defrost works, the first compressor 1 discharge high temperature
High pressure refrigerant enters 6 defrost of evaporator.
It is compact and the considerations of improve heat exchanger efficiency for system structure, by the first refrigeration system and the second refrigeration system
Two evaporators are made of one, i.e., evaporator 6 is the combination of the finned tube exchanger of two shared outside fins；Or evaporator 6
For two mutually independent evaporators.
The control method of the double-compressor refrigeration system for single space, in the normal mode of operation, defrost
Solenoid valve 7 is closed；As refrigeration system temperature T >=T0+ Δ T1, illustrate that temperature is high in refrigeration system at this time, in start-up phase
Or situation about largely loading is put into, enable the first compressor 1 and the second compressor 8 while starts work；As T≤T0- Δ T1,
In-cabinet temperature is less than set temperature, and two refrigeration systems are simultaneously stopped work；When refrigerator temperature T is between T0- Δ T2 and T0+ Δs T2
When, illustrate that temperature works close to set temperature, at this time only the first refrigeration system in refrigeration system；Wherein：T、T0、ΔT1、Δ
T2 is temperature in actual measurement refrigeration system respectively, sets temperature, startup-shutdown temperature interval in refrigeration system and sentence steady temperature interval；And
ΔT1≥ΔT2；When the defrost condition of setting meets, into defrost working condition, defrost solenoid valve 7 is opened, the first compressor
1 discharge high temperature and pressure refrigerant enters 6 defrost of evaporator.
Specific rate-determining steps are as follows：
Step 1：Judge whether to meet defrost condition, if so, entering in next step；If it is not, jump to step 4；
Step 2：First compressor 1 is switched on, and defrost solenoid valve 7 is opened, and carries out defrosting operation；
Step 3：Judge whether to meet defrost end condition, if so, the first compressor 1 is shut down, defrost solenoid valve 7 closes
It closes, controls EP (end of program)；If it is not, return to step 2；
Step 4：Judge whether temperature condition meets T >=T0+ Δ T1 in refrigeration system, if so, entering in next step；If
It is not to control EP (end of program)；
Step 5：First compressor 1 is switched on, and the second compressor 8 is switched on；
Step 6：Judge whether temperature condition meets T≤T0- Δ T2 in refrigeration system, if so, entering in next step；If
It is not return to step 5；
Step 7：First compressor 1 is switched on, and the second compressor 8 is shut down；
Step 8：Judge whether temperature condition meets T≤T0- Δ T1 in refrigeration system, if so, the first compressor 1 stops
Machine, the second compressor 8 are shut down, and control EP (end of program)；If it is not, enter step 9；
Step 9：Judge whether temperature condition meets T >=T0+ Δ T2 in refrigeration system, if so, return to step 5；If
It is not return to step 7.
Compared to the prior art, it is an advantage of the invention that：
The double-compressor refrigeration system for single space refrigeration, by the first refrigeration system and the second refrigeration system
Composition.When refrigerator adds in a large amount of loads or needs quickly to drag down temperature, two systems work at the same time, when refrigerator steady operation
When, it is only necessary to it runs the first refrigeration system or two systems works alternatively.Therefore, it is cold compared to the refrigeration system of single compressor
Cabinet, refrigerating capacity that the compressor of double-compressor refrigeration system shown in the present invention needs when being according to refrigerator stable operation are matched
Compressor, therefore the compressor refrigerating capacity matched is less than the matched compressor of single compressor refrigerator system institute, this cost
It is reduced, and the performance of compressor is fully utilized, Homes Using TV higher, on-off frequency is reduced.In conclusion institute
The double-compressor refrigeration system for single space refrigeration stated under rational control mode, can effectively solve big volume
Contradiction of the refrigerator when compressor matches between refrigerating capacity and energy consumption, the efficiency for further improving freezer product are horizontal.
Description of the drawings
Fig. 1 is simple double-compressor refrigeration system structure diagram in the prior art.
Fig. 2 is a kind of double-compressor refrigeration system structure diagram available for refrigerator.
Fig. 3 is the double-compressor refrigeration system structure diagram that the present invention is used for single space refrigeration.
Fig. 4 is control method flow chart of the present invention.
Specific embodiment
The double-compressor refrigeration system according to the present invention for refrigerated display case is described in detail below with reference to Fig. 3.
As shown in figure 3, the double-compressor refrigeration system according to the present invention for showcase includes the first refrigeration system,
Including：First compressor 1 and it is connected to the first condenser 2 of the first compressor 1 outlet, the first device for drying and filtering 3, the in turn
The first regenerative apparatus 4 and the first compressor 1 are passed through in one regenerative apparatus 4, the first capillary 5 and evaporator 6, the outlet of evaporator 6
Entrance is connected；The outlet of first compressor 1 is also connected by defrost solenoid valve 7 with the entrance of evaporator 6.
As shown in figure 3, the double-compressor refrigeration system according to the present invention for showcase further includes the second refrigeration system,
It includes：Second compressor 8 and be connected in turn the second compressor 8 outlet the second condenser 9, the second device for drying and filtering 10,
Second regenerative apparatus 11, the second capillary 12 and evaporator 6, the outlet of evaporator 6 is by the second regenerative apparatus 11 and the second pressure
8 entrance of contracting machine is connected.
Double-compressor refrigeration system according to the present invention for showcase, both can two sets of refrigeration systems work together,
A set of refrigeration system can also be only run, can also be taken as needed alternately or other effectively methods of operation.
Described is used for showcase double-compressor refrigeration system, and the refrigerating capacity of two sets of refrigeration system compressors is identical.
The double-compressor refrigeration system for showcase, two sets of refrigeration systems use identical refrigerant
R290。
The double-compressor refrigeration system for showcase, defrost solenoid valve 7 is closed in normal refrigeration, in defrost
It is opened during work, the first compressor 1 discharge high temperature and pressure refrigerant enters 6 defrost of evaporator.
The double-compressor refrigeration system for showcase, it is compact and improve heat exchanger efficiency for system structure
Consider, two evaporators of the first refrigeration system and the second refrigeration system are made of one, i.e., evaporator 6 is two shared external
The combination of the finned tube exchanger of fin.
The tool of the double-compressor refrigeration system for showcase, the first regenerative apparatus 4 and the second regenerative apparatus 11
Body form is together with the process combination that capillary and compressor suction duct are passed through soldering, them is allowed to be sufficiently carried out hot friendship
It changes.
Described is used for showcase double-compressor refrigeration system, and control mode is broadly divided into normal mode of operation and defrost
Pattern.
It is first determined whether meeting defrost condition, if it is satisfied, defrost solenoid valve 7 is opened, system enters defrost Working mould
Formula, the first compressor 1 work, and the second compressor 8 is shut down.Defrost condition could be provided as the accumulative booting when the first compressor 1
Run time reaches setting value.
Under normal mode of operation：As refrigerator temperature T >=T0+ Δ T1, illustrate that in-cabinet temperature is higher at this time, in booting rank
Section is put into situation about largely loading, and two compressors is enabled to start work simultaneously；As T≤T0- Δ T1, in-cabinet temperature, which is less than, to be set
There are many constant temperature degree, and two refrigeration systems are simultaneously stopped work.When refrigerator temperature T is between T0- Δ T2 and T0+ Δs T2, illustrate cabinet
Interior temperature works close to set temperature, at this time only the first refrigeration system.T, T0, Δ T1, Δ T2 are actual measurement in-cabinet temperature respectively,
In-cabinet temperature is set, steady temperature interval is sentenced in startup-shutdown temperature interval.General Δ T1 can take 3~5 DEG C, and Δ T2 can take 1~
2 degrees Celsius, and Δ T1 >=Δ T2.
As shown in figure 4, specific rate-determining steps are as follows：
Step 1：Judge whether to meet defrost condition, if so, entering in next step；If it is not, jump to step 4；
Step 2：First compressor 1 is switched on, and defrost solenoid valve 7 is opened, and carries out defrosting operation；
Step 3：Judge whether to meet defrost end condition, if so, the first compressor 1 is shut down, defrost solenoid valve 7 closes
It closes, controls EP (end of program)；If it is not, return to step 2；
Step 4：Judge whether in-cabinet temperature condition meets T >=T0+ Δ T1, if so, entering in next step；If it is not,
Control EP (end of program)；
Step 5：First compressor 1 is switched on, and the second compressor 8 is switched on；
Step 6：Judge whether in-cabinet temperature condition meets T≤T0- Δ T2, if so, entering in next step；If it is not,
Return to step 5；
Step 7：First compressor 1 is switched on, and the second compressor 8 is shut down；
Step 8：Judge whether in-cabinet temperature condition meets T≤T0- Δ T1, if so, the first compressor 1 is shut down, second
Compressor 8 is shut down, and controls EP (end of program)；If it is not, enter step 9；
Step 9：Judge whether in-cabinet temperature condition meets T >=T0+ Δ T2, if so, return to step 5；If it is not, it returns
Return step 7.
The double-compressor refrigeration system for showcase, energy-efficient principle are to utilize suitable control mode tune
The refrigerating capacity of double-compressor refrigeration system is saved, thermic load when being allowed to work with showcase matches, and is exactly specifically to display
Thermic load is larger when cabinet drags down temperature, and two refrigeration system compressors work at the same time, and during showcase stable operation, thermic load is smaller, and two
Refrigeration system compressor works alternatively or only there are one work.Therefore, compared to the refrigeration system refrigerator of single compressor, this reality
The refrigerating capacity that the compressor for applying the showcase shown in example needs when being according to its stable operation matches compressor, therefore match
Compressor refrigerating capacity be less than the matched compressor of single compressor refrigerator system institute, this cost is reduced, and is compressed
The performance of machine is fully utilized, Homes Using TV higher, and on-off frequency is reduced.In conclusion described is double for showcase
Compressor refrigeration system under rational control mode, can effectively solve big volume refrigerator and freeze energy when compressor matches
Contradiction between power and energy consumption, the efficiency for further improving freezer product are horizontal.
Claims (8)
1. a kind of double-compressor refrigeration system for single space refrigeration, including the first refrigeration system and the second refrigeration system；
It is characterized in that：
First refrigeration system includes the first compressor (1) and is connected to the first condensation of the first compressor (1) outlet in turn
Device (2), the first device for drying and filtering (3), the first regenerative apparatus (4), the first capillary (5) and evaporator (6), evaporator (6)
Outlet is connected by the first regenerative apparatus (4) with the first compressor (1) entrance；The outlet also processization of first compressor (1)
White solenoid valve (7) is connected with the entrance of evaporator (6)；
Second refrigeration system includes the second compressor (8) and is connected to the second condensation of the second compressor (8) outlet in turn
Device (9), the second device for drying and filtering (10), the second regenerative apparatus (11), the second capillary (12) and evaporator (6), evaporator (6)
Outlet be connected by the second regenerative apparatus (11) with the second compressor (8) entrance.
2. the double-compressor refrigeration system according to claim 1 for single space refrigeration, it is characterised in that：This double pressure
Contracting machine cooling system freezes for single space, can either two sets of refrigeration systems work at the same time, also can only run a set of system
Cooling system takes the alternately method of operation as needed.
3. the double-compressor refrigeration system according to claim 1 for single space refrigeration, it is characterised in that：Described
One compressor (1) is identical with the refrigerating capacity of the second compressor (8) or refrigerating capacity small one and large one, two sets of masters one of refrigeration systems one it is auxiliary
Form.
4. the double-compressor refrigeration system according to claim 1 for single space refrigeration, it is characterised in that：Described two
It covers refrigeration system and different refrigerants is used using same refrigerant or respectively.
5. the double-compressor refrigeration system according to claim 1 for single space refrigeration, it is characterised in that：Describedization
White solenoid valve (7) is closed in normal refrigeration, is opened when defrost work, the first compressor (1) discharge high temperature and pressure refrigerant into
Enter evaporator (6) defrost.
6. the double-compressor refrigeration system according to claim 1 for single space, it is characterised in that：For system knot
Two evaporators of the first refrigeration system and the second refrigeration system are made one by the considerations of structure is compact and improves heat exchanger efficiency
Body, i.e. evaporator (6) are the combinations of the finned tube exchanger of two shared outside fins；Or evaporator (6) is mutually only for two
Vertical evaporator.
7. claim 1-6 any one of them is for the control method of the double-compressor refrigeration system in single space, feature
It is：In the normal mode of operation, defrost solenoid valve (7) is closed；As refrigeration system temperature T >=T0+ Δ T1, illustrate to make at this time
Temperature is high in cooling system, in start-up phase or is put into situation about largely loading, enables the first compressor (1) and the second compressor
(8) while start work；As T≤T0- Δ T1, in-cabinet temperature is less than set temperature, and two refrigeration systems are simultaneously stopped work；When
When refrigerator temperature T is between T0- Δ T2 and T0+ Δs T2, illustrate in refrigeration system temperature close to set temperature, at this time only first
Refrigeration system works；Wherein：T, T0, Δ T1, Δ T2 respectively be actual measurement refrigeration system in temperature, setting refrigeration system in temperature,
Startup-shutdown temperature interval and sentence steady temperature interval；And Δ T1 >=Δ T2；When the defrost condition of setting meets, work into defrost
State, defrost solenoid valve (7) are opened, and the first compressor (1) discharge high temperature and pressure refrigerant enters evaporator (6) defrost.
8. control method according to claim 7, it is characterised in that：Specific rate-determining steps are as follows：
Step 1：Judge whether to meet defrost condition, if so, entering in next step；If it is not, jump to step 4；
Step 2：First compressor (1) is switched on, and defrost solenoid valve (7) is opened, and carries out defrosting operation；
Step 3：Judge whether to meet defrost end condition, if so, the first compressor (1) is shut down, defrost solenoid valve (7) closes
It closes, controls EP (end of program)；If it is not, return to step 2；
Step 4：Judge whether temperature condition meets T >=T0+ Δ T1 in refrigeration system, if so, entering in next step；If no
It is to control EP (end of program)；
Step 5：First compressor (1) is switched on, the second compressor (8) booting；
Step 6：Judge whether temperature condition meets T≤T0- Δ T2 in refrigeration system, if so, entering in next step；If no
It is return to step 5；
Step 7：First compressor (1) is switched on, and the second compressor (8) is shut down；
Step 8：Judge whether temperature condition meets T≤T0- Δ T1 in refrigeration system, if so, the first compressor (1) is shut down,
Second compressor (8) is shut down, and controls EP (end of program)；If it is not, enter step 9；
Step 9：Judge whether temperature condition meets T >=T0+ Δ T2 in refrigeration system, if so, return to step 5；If it is not,
Return to step 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711278475.7A CN108151348A (en) | 2017-12-06 | 2017-12-06 | A kind of double-compressor refrigeration system and control method for single space refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711278475.7A CN108151348A (en) | 2017-12-06 | 2017-12-06 | A kind of double-compressor refrigeration system and control method for single space refrigeration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108151348A true CN108151348A (en) | 2018-06-12 |
Family
ID=62466531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711278475.7A Pending CN108151348A (en) | 2017-12-06 | 2017-12-06 | A kind of double-compressor refrigeration system and control method for single space refrigeration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108151348A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654798A (en) * | 2018-11-29 | 2019-04-19 | 广东星星制冷设备有限公司 | A kind of direct-cooled cabinet double-compressor temperature control equipment and control method |
| CN110017625A (en) * | 2019-03-26 | 2019-07-16 | 湖南中谷科技股份有限公司 | A kind of refrigeration system, control method and refrigeration equipment |
| CN112556279A (en) * | 2019-09-25 | 2021-03-26 | 海信（山东）冰箱有限公司 | Double-compressor refrigeration refrigerator |
| CN113720066A (en) * | 2020-11-13 | 2021-11-30 | 金西盟(天津)人工智能有限责任公司 | Biological sample liquid nitrogen tank refrigerator |
| CN114377740A (en) * | 2021-12-03 | 2022-04-22 | 合肥通用机械研究院有限公司 | Temperature coupling control system of equipment of long-term low temperature operation |
| WO2022167590A3 (en) * | 2021-02-04 | 2022-09-15 | Lowenco A/S | A cold storage and a method of operating a cold storage |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000192A (en) * | 2006-01-13 | 2007-07-18 | 博西华电器（江苏）有限公司 | Refrigeration system of refrigerator |
| CN202709531U (en) * | 2012-06-06 | 2013-01-30 | 合肥华凌股份有限公司 | Refrigerating system and refrigerator with same |
| CN203011026U (en) * | 2012-12-06 | 2013-06-19 | 澳柯玛股份有限公司 | Refrigeration equipment with defrosting system |
| CN103615851A (en) * | 2013-12-05 | 2014-03-05 | 合肥华凌股份有限公司 | Freezer and refrigeration system thereof |
| US9291373B2 (en) * | 2008-11-06 | 2016-03-22 | Trane International Inc. | Fixed and variable refrigerant metering system |
| CN105466061A (en) * | 2015-12-29 | 2016-04-06 | 西安交通大学 | Two-stage compression refrigerator system and working method thereof |
| CN205351841U (en) * | 2015-12-29 | 2016-06-29 | 西安交通大学 | Two -stage compression refrigerator system |
| CN106123386A (en) * | 2016-06-17 | 2016-11-16 | 西安交通大学 | A kind of big refrigerating capacity parallel connection double round robin cooling system and control mode thereof |
| KR101859231B1 (en) * | 2012-01-09 | 2018-05-17 | 엘지전자 주식회사 | A combined refrigerating and freezing system |
-
2017
- 2017-12-06 CN CN201711278475.7A patent/CN108151348A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000192A (en) * | 2006-01-13 | 2007-07-18 | 博西华电器（江苏）有限公司 | Refrigeration system of refrigerator |
| US9291373B2 (en) * | 2008-11-06 | 2016-03-22 | Trane International Inc. | Fixed and variable refrigerant metering system |
| KR101859231B1 (en) * | 2012-01-09 | 2018-05-17 | 엘지전자 주식회사 | A combined refrigerating and freezing system |
| CN202709531U (en) * | 2012-06-06 | 2013-01-30 | 合肥华凌股份有限公司 | Refrigerating system and refrigerator with same |
| CN203011026U (en) * | 2012-12-06 | 2013-06-19 | 澳柯玛股份有限公司 | Refrigeration equipment with defrosting system |
| CN103615851A (en) * | 2013-12-05 | 2014-03-05 | 合肥华凌股份有限公司 | Freezer and refrigeration system thereof |
| CN105466061A (en) * | 2015-12-29 | 2016-04-06 | 西安交通大学 | Two-stage compression refrigerator system and working method thereof |
| CN205351841U (en) * | 2015-12-29 | 2016-06-29 | 西安交通大学 | Two -stage compression refrigerator system |
| CN106123386A (en) * | 2016-06-17 | 2016-11-16 | 西安交通大学 | A kind of big refrigerating capacity parallel connection double round robin cooling system and control mode thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654798A (en) * | 2018-11-29 | 2019-04-19 | 广东星星制冷设备有限公司 | A kind of direct-cooled cabinet double-compressor temperature control equipment and control method |
| CN110017625A (en) * | 2019-03-26 | 2019-07-16 | 湖南中谷科技股份有限公司 | A kind of refrigeration system, control method and refrigeration equipment |
| CN112556279A (en) * | 2019-09-25 | 2021-03-26 | 海信（山东）冰箱有限公司 | Double-compressor refrigeration refrigerator |
| CN113720066A (en) * | 2020-11-13 | 2021-11-30 | 金西盟(天津)人工智能有限责任公司 | Biological sample liquid nitrogen tank refrigerator |
| WO2022167590A3 (en) * | 2021-02-04 | 2022-09-15 | Lowenco A/S | A cold storage and a method of operating a cold storage |
| CN114377740A (en) * | 2021-12-03 | 2022-04-22 | 合肥通用机械研究院有限公司 | Temperature coupling control system of equipment of long-term low temperature operation |
| CN114377740B (en) * | 2021-12-03 | 2023-10-27 | 合肥通用机械研究院有限公司 | Temperature coupling control system of equipment operating at low temperature for long time |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108151348A (en) | A kind of double-compressor refrigeration system and control method for single space refrigeration | |
| CN105402979B (en) | A kind of new refrigerator refrigeration system of non-azeotropic mixed working medium fractional condensation circulation | |
| Qin et al. | Experimental investigation on heating performance of heat pump for electric vehicles at− 20 C ambient temperature | |
| WO2018121593A1 (en) | Energy-saving refrigeration system for refrigerator and method for operating refrigerator having same | |
| CN103486754B (en) | A kind of energy-conservation middle temperature cold-producing medium/middle temperature cold-producing medium cascade refrigeration system | |
| US20020144510A1 (en) | Method for controlling power saving operation of refrigerator with two evaporator | |
| CN108759138B (en) | Operation method and system of secondary throttling middle incomplete cooling refrigerating system | |
| CN108826536A (en) | The air conditioner unit of not stopping function is heated with defrosting | |
| CN106225358A (en) | Cold storage hot gas defrosting refrigeration system and heat accumulating type steam defrosting heat pump system | |
| EP3712541A1 (en) | Heat pump system | |
| CN110296565A (en) | A kind of double evaporating temperature refrigeration systems and its control method | |
| CN112050505B (en) | Double-circulation refrigerator refrigerating system and control method thereof | |
| CN105758045A (en) | Ultralow-temperature overlapped triple generation heat pump unit | |
| CN103335439B (en) | Refrigeration system | |
| CN105737436B (en) | Air cooling and compression refrigeration combined water chilling unit and control method | |
| CN108759139B (en) | Primary throttling intermediate incomplete cooling refrigeration system with intermediate temperature evaporator | |
| CN109520163B (en) | Wide-temperature-zone small-sized refrigerating and refrigerating unit with rapid pulse defrosting function | |
| CN217929282U (en) | Semi-closed piston type air-cooled compression condensing unit with defrosting function for low-temperature refrigeration house | |
| Won et al. | An experimental study of the performance of a dual-loop refrigerator freezer system | |
| CN206989557U (en) | A kind of double case refrigerators | |
| CN206593361U (en) | A kind of vehicle-mounted energy-saving refrigerator | |
| CN108709333B (en) | Operation method and system of secondary throttling middle complete cooling refrigerating system | |
| RU148544U1 (en) | ENERGY-SAVING REFRIGERATING UNIT | |
| CN101435629B (en) | Screw type cold source hot water machine unit | |
| US20140284024A1 (en) | Method for controlling refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180612 |