CN110160306A - Dual system reach in freezer and its control method - Google Patents
Dual system reach in freezer and its control method Download PDFInfo
- Publication number
- CN110160306A CN110160306A CN201910548819.4A CN201910548819A CN110160306A CN 110160306 A CN110160306 A CN 110160306A CN 201910548819 A CN201910548819 A CN 201910548819A CN 110160306 A CN110160306 A CN 110160306A
- Authority
- CN
- China
- Prior art keywords
- temperature controller
- relay
- compressor
- defrosting
- temperature
- 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
- 230000009977 dual effect Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005057 refrigeration Methods 0.000 claims abstract description 107
- 238000001704 evaporation Methods 0.000 claims abstract description 98
- 230000008020 evaporation Effects 0.000 claims abstract description 98
- 238000009833 condensation Methods 0.000 claims abstract description 25
- 230000005494 condensation Effects 0.000 claims abstract description 25
- 238000010257 thawing Methods 0.000 claims description 100
- 238000001035 drying Methods 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/04—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with more than one refrigeration unit
-
- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/004—Control mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The invention of this reality is related to a kind of dual system reach in freezer and its control method, the first refrigeration control system and the second refrigeration control system are provided in reach in freezer cabinet body, first refrigeration control system includes the first temperature controller, the first compressor, the first solenoid valve, the first condensation fan and the first evaporation fan, and first compressor, the first solenoid valve, the first condensation fan and the first evaporation fan are connect with the first temperature controller respectively；Second refrigeration control system is identical as the first refrigeration control system design, connects between the first temperature controller and the second temperature controller.The present invention is by two sets of independent refrigeration control systems of design, and two sets of refrigeration control systems design two sets of independent control units, to realize the independent control of every set system；And two have information communication between temperature controller, make between dual system can redundancy switching, improve the reliability and security of system.
Description
Technical field
The invention belongs to cryogenic freezing control technology field more particularly to a kind of dual system reach in freezer and its control methods.
Background technique
The biggish reach in freezer of volumetric ratio is mostly based on four and clamshell doors in the market, single behind reach in freezer cabinet body space partition zone
The volume in a small space is small, cannot store biggish food.The refrigeration system of reach in freezer currently on the market is typically only single
Two independent cooling cycle systems of cooling cycle system or setting, single refrigeration circulatory system mode refrigerating efficiency is low, and makes
It is cold uneven, it is unfavorable for multiple big volume reach in freezer designs.And two independent cooling cycle system designs, and be easy to deposit
Cause power grid transient current excessive when since dual system starts simultaneously, easily causes damage of product, influence life of product.
For example, patent CN201510559373, which discloses one kind, has dual system refrigeration superfreeze storage box, including
Refrigeration system one and refrigeration system two, refrigeration system one and refrigeration system two include control system, compressor, condenser and steaming
Device is sent out, refrigeration system one and refrigeration system two are connected separately with power connection, and two temperatures sensor, two controls are provided in storage bin
Relay is connected separately in system processed, two temperatures sensor is connect with two relays respectively.A kind of dual system system of this patent
Cooling system is placed in different cabinet body subregions, and refrigerating efficiency is higher, is able to satisfy more big volume reach in freezer refrigeration needs.But
Above-mentioned two sets of refrigeration systems are to work independently, individually control, and when powering on, dual system is worked at the same time, and easily leads to power grid transient current
It is excessive, damage of product is caused, life of product is influenced.Therefore, it is necessary to improve to existing double refrigeration systems, one kind is designed
Double refrigeration systems of high reliability and versatility.
Summary of the invention
The present invention solve to provide on the basis of above-mentioned double refrigerant system designs are insufficient a kind of dual system reach in freezer and its
Control method, double refrigeration systems are designed using hot backup redundancy, improve the reliability of system control.
To achieve the goals above, the present invention provides a kind of dual system reach in freezer, including cabinet body, the interior settings of the cabinet body
There are the first refrigeration control system and the second refrigeration control system, first refrigeration control system includes the first temperature controller, first
Compressor, the first solenoid valve, the first condensation fan and the first evaporation fan, first compressor, the first solenoid valve, first
Condensation fan and the first evaporation fan are connect with the first temperature controller respectively；Second refrigeration control system includes the second temperature control
Device, the second compressor, second solenoid valve, the second condensation fan and the second evaporation fan, second compressor, the second electromagnetism
Valve, the second condensation fan and the second evaporation fan are connect with the second temperature controller respectively；First temperature controller and the second temperature control
It is connected between device.
Preferably, first refrigeration control system further comprises the first temperature sensor and the first defrosting sensor,
First defrosting sensor is arranged on the first evaporator, and for acquiring evaporator temperature, the first temperature sensor setting exists
On first evaporation fan bracket, for acquiring return air temperature, the first defrosting sensor and the first temperature sensor are respectively with first
Temperature controller connection；Second refrigeration control system further comprises second temperature sensor and the second defrosting sensor, second
Defrosting sensor is arranged on the second evaporator, and for acquiring evaporator temperature, the second temperature sensor is arranged second
On evaporation fan bracket, for acquiring return air temperature, the second defrosting sensor and second temperature sensor respectively with the second temperature control
Device connection.
Preferably, first refrigeration control system further includes the first compressor relay, the first defrosting relay and the
One evaporation fan relay, first compressor relay, the first defrosting relay and the first evaporation fan relay difference
It is connect with the first temperature controller, first compressor relay is connect with the first compressor, the first defrosting relay and the
The connection of one solenoid valve；The first evaporation fan relay is connect with the first evaporation fan, and second refrigeration control system is also
Including the second compressor relay, the second defrosting relay and the second evaporation fan relay, second compressor relay,
Second defrosting relay and the second evaporation fan relay connect respectively with the second temperature controller, second compressor relay and
The connection of second compressor, the second defrosting relay are connect with second solenoid valve；The second evaporation fan relay and
Two evaporation fan connections.
Preferably, first refrigeration control system further includes the first condenser, the first device for drying and filtering, the first evaporation
Device, the first liquid storage device and the first muffler, first compressor outlet are connected with the first condenser inlet, the first condenser
Outlet is connected with the first device for drying and filtering entrance, and the outlet of the first device for drying and filtering passes through the first capillary and the first evaporator inlet
It is connected, the first evaporator outlet is connected with the first liquid storage device entrance, and the first reservoir outlet passes through the first muffler and the first pressure
Contracting machine entrance is connected；Second refrigeration control system further include the second condenser, the second device for drying and filtering, the second evaporator,
Second liquid storage device and the second muffler, second compressor outlet are connected with the second condenser inlet, and the second condenser goes out
Mouth is connected with the second device for drying and filtering entrance, and the outlet of the second device for drying and filtering passes through the second capillary and the second evaporator inlet phase
Even, the second evaporator outlet is connected by the second muffler with the second liquid storage device entrance, the second reservoir outlet and the second compression
Machine entrance is connected.
The present invention also provides a kind of refrigeration control methods of dual system reach in freezer, using the dual system reach in freezer, packet
It includes:
If it is more than default press threshold that the first temperature controller and the second temperature controller, which are detected simultaneously by return air temperature in each place cabinet,
When value, the first temperature controller and the second temperature controller issue press request, lead at this point, the first temperature controller controls the first compressor relay
It is logical, the first compressor operating；After postponing certain time length, the second temperature controller controls the conducting of the second compressor relay, the second compression
Machine work；
If the first temperature controller and the second temperature controller are detected simultaneously by when reaching the preset defrost time, the first temperature controller and the
Two temperature controllers issue defrosting request, at this point, the first temperature controller control the first defrosting relay conducting, the first solenoid valve are opened, the
One evaporation fan stops working；After the first temperature controller detects the defrosting of the first refrigeration control system, the first defrosting of control
Cut-off, the second temperature controller control the second defrosting relay conducting, second solenoid valve are opened, and the second evaporation fan stops work
Make；
If the first refrigeration control system breaks down, the second refrigeration control system is worked normally.
The present invention also provides another dual system reach in freezer, including cabinet body, the first refrigeration is provided in the cabinet body
Control system and the second refrigeration control system, first refrigeration control system include the first temperature controller, the first compressor, first
Solenoid valve, the first condensation fan and the first evaporation fan, first compressor, the first solenoid valve, the first condensation fan with
And first evaporation fan simultaneously connect with the first temperature controller and the second temperature controller；Second refrigeration control system includes the
Two temperature controllers, the second compressor, second solenoid valve, the second condensation fan and the second evaporation fan, second compressor,
Two solenoid valves, the second condensation fan and the second evaporation fan are connect with the first temperature controller and the second temperature controller simultaneously.
Preferably, first refrigeration control system further comprises the first temperature sensor and the first defrosting sensor,
First defrosting sensor is arranged on the first evaporator, and for acquiring evaporator temperature, the first temperature sensor setting exists
On first evaporation fan bracket, for acquiring return air temperature, the first defrosting sensor and the first temperature sensor are warm with first
Control device and the connection of the second temperature controller；Second refrigeration control system further comprises second temperature sensor and the second defrost
Sensor, the second defrosting sensor is arranged on the second evaporator, for acquiring evaporator temperature, the second temperature sensor
Be arranged on the second evaporation fan bracket, for acquiring return air temperature, the second defrosting sensor and second temperature sensor with
First temperature controller and the connection of the second temperature controller.
Preferably, first refrigeration control system further includes the first compressor relay, the first defrosting relay and the
One evaporation fan relay, first compressor relay, first defrosting relay and the first evaporation fan relay with
First temperature controller and the connection of the second temperature controller, first compressor relay are connect with the first compressor, and described first removes
White relay is connect with the first solenoid valve；The first evaporation fan relay is connect with the first evaporation fan, second system
Cold control system further includes the second compressor relay, the second defrosting relay and the second evaporation fan relay, and described second
Compressor relay, the second defrosting relay and the second evaporation fan relay connect with the first temperature controller and the second temperature controller
It connects, second compressor relay is connect with the second compressor, and the second defrosting relay is connect with second solenoid valve；Institute
The second evaporation fan relay is stated to connect with second evaporation fan.
The present invention also provides the refrigeration control method of another dual system reach in freezer, the dual system reach in freezer,
If the first temperature controller breaks down, automatically switches to the second temperature controller and control the work of the first refrigeration control system.
Preferably, the refrigeration control method of the dual system reach in freezer, further includes:
If it is more than default press threshold that the first temperature controller and the second temperature controller, which are detected simultaneously by return air temperature in each place cabinet,
When value, the first temperature controller and the second temperature controller issue press request, lead at this point, the first temperature controller controls the first compressor relay
It is logical, the first compressor operating；After postponing certain time length, the second temperature controller controls the conducting of the second compressor relay, the second compression
Machine work；
If the first temperature controller and the second temperature controller are detected simultaneously by when reaching the preset defrost time, the first temperature controller and the
Two temperature controllers issue defrosting request, at this point, the first temperature controller control the first defrosting relay conducting, the first solenoid valve are opened, the
One evaporation fan stops working；After the first temperature controller detects the defrosting of the first refrigeration control system, the first defrosting of control
Cut-off, the second temperature controller control the second defrosting relay conducting, second solenoid valve are opened, and the second evaporation fan stops work
Make.
Compared with prior art, the advantages and positive effects of the present invention are:
The present invention provides a kind of dual system reach in freezer and design of control method, using two sets of refrigeration control systems, two sets
It is communicated with each other between the temperature controller of refrigeration control system, when set of system being made to work on power, another set of system can be delayed one periodically
Between after work on power, when avoiding dual system and working at the same time, two compressors start work or lead when starting defrost simultaneously simultaneously
The impact flowed through and caused greatly to power grid is sent a telegraph, the generation for leading to damage of product, influencing the phenomenon that life of product.Meanwhile Ke Yijin
One step designs two temperature controllers and connect simultaneously with two sets of refrigeration equipments, when making one of temperature controller failure, can automatically switch to another
One temperature controller controls refrigeration equipment work, further improves the reliability and security of product design.
Detailed description of the invention
Fig. 1 is the structure chart of dual system reach in freezer of the invention；
Fig. 2 is the sectional structure chart of the dual system reach in freezer of Fig. 1；
Fig. 3 is refrigeration elementary diagram of the invention；
Fig. 4 is the control elementary diagram of the embodiment of the present invention 1；
Fig. 5 is the temperature controller control principle drawing of the embodiment of the present invention 1；
Wherein, the first refrigeration control system of 1-, the first temperature controller of 10-, the first compressor of 11-, the first solenoid valve of 12-, 13-
First condensation fan, the first evaporation fan of 14-, the first condenser of 15-, the first device for drying and filtering of 16-, the first evaporator of 17-,
The first liquid storage device of 18-, the first capillary of 19-, the first temperature sensor of 110-, the first defrosting sensor of 111-；2- second freezes
Control system, the second temperature controller of 20-, the second compressor of 21-, 22- second solenoid valve, the second condensation fan of 23-, 24- second steam
Send out blower, the second condenser of 25-, the second device for drying and filtering of 26-, the second evaporator of 27-, the second liquid storage device of 28-, second mao of 29-
Tubule, 210- second temperature sensor, the second defrosting sensor of 211-.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, technical solutions in the embodiments of the present application are explicitly described, it is clear that described embodiment is the application part
Embodiment, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present application under the premise of creative work.
The description and claims of this application and term " includes " and their any deformations in above-mentioned attached drawing, meaning
Figure, which is to cover, non-exclusive includes.Such as process, method or system comprising a series of steps or units, product or equipment do not have
It is defined in listed step or unit, but optionally further comprising the step of not listing or unit, or optionally also wrap
Include the other step or units intrinsic for these process, methods, product or equipment.In addition, term " first ", " second " and
" third " etc. is for distinguishing different objects, not for description particular order.
The present invention provides a kind of reach in freezer of dual system for the Demand Design of Multi-door reach in freezer refrigeration system, refers to
Shown in Fig. 1, Fig. 2, Fig. 3, two systems are respectively arranged in cabinet body in the not partition space of fellow disciple, including the first refrigeration control system
System 1 and the second refrigeration control system 2, the first refrigeration control system 1 include the first temperature controller 10, first the 11, first electricity of compressor
Magnet valve 12, the first condensation fan 13, the first evaporation fan 14, the first condenser 15, the first device for drying and filtering 16, the first evaporator
17 and first liquid storage device 18.Wherein, the first compressor 11 outlet is connected with 15 entrance of the first condenser, and the first condenser 15 goes out
Mouth is connected with 16 entrance of the first device for drying and filtering, and the outlet of the first device for drying and filtering 16 passes through the first capillary 19 and the first evaporator
17 entrances are connected, and the outlet of the first evaporator 17 is connected with 18 entrance of the first liquid storage device, and the outlet of the first liquid storage device 18 passes through first time
Tracheae is connected with 11 entrance of the first compressor.Second refrigeration control system 2 designed with the first refrigeration control system 1 it is identical, second
Refrigeration control system 2 includes the second temperature controller 20, the second compressor 21, second solenoid valve 22, the steaming of the second condensation fan 23, second
Send out blower 24, the second condenser 25, the second device for drying and filtering 26, the second evaporator 27 and the second liquid storage device 28.Wherein, second
The outlet of compressor 21 is connected with 25 entrance of the second condenser, the outlet of the second condenser 25 and 26 entrance phase of the second device for drying and filtering
Even, the second device for drying and filtering 26 outlet is connected by the second capillary 29 with 27 entrance of the second evaporator, and the second evaporator 27 goes out
Mouth is connected with 28 entrance of the second liquid storage device, and the outlet of the second liquid storage device 28 passes through the second muffler and 21 entrance phase of the second compressor
Even.
Embodiment 1:
With further reference to shown in Fig. 4, the first refrigeration control system is further provided with the first temperature sensing in the present embodiment
Device 110, the first defrosting sensor 111, the first compressor relay, the first defrosting relay and the first evaporation fan relay
Device.In the present embodiment the first compressor 11, the first solenoid valve 12, the first condensation fan 13 and the first evaporation fan 14 respectively with
The connection of first temperature controller 10.First compressor relay, first defrosting relay and the first evaporation fan relay respectively with
The connection of first temperature controller 10, and the first compressor relay is connect with the first compressor 10, control the first compressor 10 work；The
One defrosting relay is connect with the first solenoid valve 12；First evaporation fan relay is connect with the first evaporation fan 14, control the
The work of one evaporation fan 14.First temperature sensor 110, the first defrosting sensor 111 are connect with the first temperature controller 10 respectively, the
One defrosting sensor 111 is arranged on the first evaporator 17, for acquiring evaporator temperature, the setting of the first temperature sensor 110
On the bracket of the first evaporation fan 14, return air temperature is acquired.Second refrigeration control system 2 is set with the first refrigeration control system 1
Count it is identical, the second refrigeration control system 2 further be provided with second temperature sensor 210, the second defrosting sensor 211, second
Compressor relay, the second defrosting relay and the first evaporation fan relay.Wherein, the second compressor 21, the second electromagnetism
Valve 22, the second condensation fan 23 and the second evaporation fan 24 are connect with the second temperature controller 20 respectively；Second compressor relay,
Second defrosting relay and the first evaporation fan relay are connect with the second temperature controller 20 respectively, and the second compressor relay
It is connect with the second compressor 20, control the second compressor 20 work；Second defrosting relay is connect with the first solenoid valve 12；First
Evaporation fan relay is connect with the second evaporation fan 24, control the second evaporation fan 24 work；Second temperature sensor 210,
Second defrosting sensor 211 is connect with the second temperature controller 20 respectively, and second temperature sensor 210 is arranged in the second evaporation fan 24
Bracket on, acquire return air temperature, the second defrosting sensor 211 be arranged on the second evaporator 27, acquire the temperature of evaporator.
In the present embodiment, connects, be in communication with each other between the first temperature controller 10 and the second temperature controller 20.
Compared with traditional dual system reach in freezer, dual system reach in freezer provided in this embodiment, double refrigeration control systems it
Between can be in communication with each other, meet the refrigeration demand of Multi-door reach in freezer, it is another when a set of refrigeration control system being made to work on power
Set refrigeration control system can be delayed to work on power after a certain period of time, avoids two compressors while starting work or starting simultaneously
Lead to the electric current excessive impact caused to power grid when defrost, the generation for leading to damage of product, influencing the phenomenon that life of product.Together
When, if a set of refrigeration control system breaks down, another set of refrigeration control system can be worked normally.
Refering to what is shown in Fig. 5, for the refrigeration control method of above-mentioned dual system reach in freezer design, comprising:
If it is more than default that the first temperature controller 10 and the second temperature controller 20, which are detected simultaneously by return air temperature in each place cabinet,
When press threshold value, the first temperature controller 10 and the second temperature controller 20 issue press request, at this point, the first pressure of the first temperature controller 10 control
The conducting of contracting machine relay, the work of the first compressor 11；After postponing certain time length, the second temperature controller 20 controls the second compressor relay
Device conducting, the work of the second compressor 21；If the first temperature controller 10 and the second temperature controller 20, which are detected simultaneously by, reaches preset defrost
After time (being set as 8 hours in the present embodiment), the first temperature controller 10 and the second temperature controller 20 issue defrosting request, at this point, the
One temperature controller 10 control the first defrosting relay conducting, the conducting of the first solenoid valve 12, the first evaporation fan 14 stop working, carry out
Defrosting operation；After the first temperature controller 10 detects the defrosting of the first refrigeration control system, control the first defrosting relay is closed
It closes, the second temperature controller 20 control the second defrosting relay conducting, second solenoid valve 22 is connected, and the second evaporation fan 24 stops work
Make, carries out defrosting operation.
Embodiment 2:
The present embodiment is further improved design, the first refrigeration control system in the present embodiment on the basis of the above embodiments
Further it is provided with the first temperature sensor 110, the first defrosting sensor 111, the first compressor relay, the first defrosting relay
Device and the first evaporation fan relay.In the present embodiment the first compressor 11, the first solenoid valve 12, the first condensation fan 13 with
And first evaporation fan 14 connect with the first temperature controller 10 and the second temperature controller 20.First compressor relay, first remove
White relay and the first evaporation fan relay are connect with the first temperature controller 10 and the second temperature controller 20, and the first compression
Machine relay is connect with the first compressor 10, control the first compressor 10 work；First defrosting relay and the first solenoid valve 12
Connection；First evaporation fan relay is connect with the first evaporation fan 14, control the first evaporation fan 14 work.First temperature passes
Sensor 110, the first defrosting sensor 111 are connect with the first temperature controller 10 and the second temperature controller 20, the first defrosting sensor
111 are arranged on the first evaporator 17, and for acquiring evaporator temperature, the setting of the first temperature sensor 110 evaporates wind first
On the bracket of machine 14, return air temperature is acquired.Second refrigeration control system 2 designs identical, the second system with the first refrigeration control system 1
Cold control system 2 further be provided with second temperature sensor 210, the second defrosting sensor 211, the second compressor relay,
Second defrosting relay and the first evaporation fan relay.Wherein, the second compressor 21, second solenoid valve 22, second condense
Blower 23 and the second evaporation fan 24 are connect with the first temperature controller 10 and the second temperature controller 20；Second compressor relay
Device, the second defrosting relay and the first evaporation fan relay are connect with the first temperature controller 10 and the second temperature controller 20,
And second compressor relay connect with the second compressor 20, control the second compressor 20 work；Second defrosting relay and the
The connection of one solenoid valve 12；First evaporation fan relay is connect with the second evaporation fan 24, control the second evaporation fan 24 work；
Second temperature sensor 210, the second defrosting sensor 211 are connect with the first temperature controller 10 and the second temperature controller 20, and second
Temperature sensor 210 is arranged on the bracket of the second evaporation fan 24, acquires return air temperature, the setting of the second defrosting sensor 211
On the second evaporator 27, the temperature of evaporator is acquired.In the present embodiment, the first temperature controller 10 can be same with the second temperature controller 20
When communicated with two sets of refrigeration control systems, when a temperature controller breaks down wherein, another temperature controller control can be automatically switched to
Make refrigeration control system work, if such as the first temperature controller 10 can automatically switch to the control of the second temperature controller 20 when breaking down
The work of the first refrigeration control system 1 is made, is compared compared with Dual System Design in embodiment 1, further improves the reliability of system.
If it is more than default pressure that the first temperature controller 10 and the second temperature controller 20, which are detected simultaneously by return air temperature in each place cabinet,
When machine threshold value, the first temperature controller 10 and the second temperature controller 20 issue press request, at this point, the first compression of the first temperature controller 10 control
The conducting of machine relay, the work of the first compressor 11；After postponing certain time length, the second temperature controller 20 controls the second compressor relay
Conducting, the work of the second compressor 21；If the first temperature controller 10 and the second temperature controller 20 are detected simultaneously by when reaching preset defrost
Between when, the first temperature controller 10 and the second temperature controller 20 issue defrosting request, at this point, the first temperature controller 10 control the first defrosting relay
Device conducting, the conducting of the first solenoid valve 12, the first evaporation fan 14 stop working, and carry out defrosting operation；When the first temperature controller 10 is examined
After measuring the defrosting of the first refrigeration control system, control the first defrosting cut-off, the second temperature controller 20 control second is removed
White relay conducting, second solenoid valve 22 are connected, and the second evaporation fan 24 stops working, and carries out defrosting operation.If the first temperature control
When device 10 breaks down, automatically switches to the second temperature controller 20 and control the work of the first refrigeration control system 1, further improve and be
System Control for Dependability.
Therefore, in summary, the dual system reach in freezer in the present invention uses two sets of independent refrigeration control systems, every set system
System miniaturization, the corresponding two sets of independent control units of two sets of refrigeration control systems, to realize the independent control of every set system；And two
Covering between independent temperature controller has information communication, can avoid starting while two compressors bring high current to power grid
Impact, can avoid impact of the defrost bring high current to power grid while two compressors, and two temperature controllers can basis
The deviation of return air temperature and evaporator temperature judges that the intelligent control of system is realized in intelligent starting defrost to simulate.
Claims (10)
1. a kind of dual system reach in freezer, including cabinet body, which is characterized in that be provided in the cabinet body the first refrigeration control system with
Second refrigeration control system, first refrigeration control system include the first temperature controller, the first compressor, the first solenoid valve, the
One condensation fan and the first evaporation fan, first compressor, the first solenoid valve, the first condensation fan and the first evaporation
Blower is connect with the first temperature controller respectively；Second refrigeration control system includes the second temperature controller, the second compressor, the second electricity
Magnet valve, the second condensation fan and the second evaporation fan, second compressor, second solenoid valve, the second condensation fan and
Second evaporation fan is connect with the second temperature controller respectively；It is connected between first temperature controller and the second temperature controller.
2. dual system reach in freezer according to claim 1, which is characterized in that first refrigeration control system further wraps
The first temperature sensor and the first defrosting sensor are included, the first defrosting sensor is arranged on the first evaporator, steams for acquiring
Device temperature is sent out, first temperature sensor is arranged on the first evaporation fan bracket, for acquiring return air temperature, the first defrost
Sensor and the first temperature sensor are connect with the first temperature controller respectively；Second refrigeration control system further comprises second
Temperature sensor and the second defrosting sensor, the second defrosting sensor is arranged on the second evaporator, for acquiring evaporator temperature
Degree, the second temperature sensor is arranged on the second evaporation fan bracket, for acquiring return air temperature, the second defrosting sensor
It is connect respectively with the second temperature controller with second temperature sensor.
3. dual system reach in freezer according to claim 2, which is characterized in that first refrigeration control system further includes
One compressor relay, the first defrosting relay and the first evaporation fan relay, first compressor relay, first remove
White relay and the first evaporation fan relay are connect with the first temperature controller respectively, first compressor relay and the first pressure
The connection of contracting machine, the first defrosting relay are connect with the first solenoid valve；The first evaporation fan relay and the first evaporation
Blower connection, second refrigeration control system further include the second compressor relay, the second defrosting relay and the second evaporation
Blower relay, second compressor relay, the second defrosting relay and the second evaporation fan relay are respectively with second
Temperature controller connection, second compressor relay are connect with the second compressor, the second defrosting relay and the second electromagnetism
Valve connection；The second evaporation fan relay is connect with second evaporation fan.
4. dual system reach in freezer according to claim 3, which is characterized in that first refrigeration control system further includes
One condenser, the first device for drying and filtering, the first evaporator, the first liquid storage device and the first muffler, first compressor go out
Mouth is connected with the first condenser inlet, and the first condensator outlet is connected with the first device for drying and filtering entrance, the first device for drying and filtering
Outlet is connected by the first capillary with the first evaporator inlet, and the first evaporator outlet is connected with the first liquid storage device entrance, the
One reservoir outlet is connected by the first muffler with the first suction port of compressor；Second refrigeration control system further includes second
Condenser, the second device for drying and filtering, the second evaporator, the second liquid storage device and the second muffler, second compressor outlet
It is connected with the second condenser inlet, the second condensator outlet is connected with the second device for drying and filtering entrance, and the second device for drying and filtering goes out
Mouth is connected by the second capillary with the second evaporator inlet, and the second evaporator outlet passes through the second muffler and the second liquid storage device
Entrance is connected, and the second reservoir outlet is connected with the second suction port of compressor.
5. a kind of refrigeration control method of dual system reach in freezer, special using dual system reach in freezer described in claim 3 or 4
Sign is, comprising:
If the first temperature controller and the second temperature controller are detected simultaneously by each place cabinet return air temperature when being more than default press threshold value,
First temperature controller and the second temperature controller issue press request, at this point, the first temperature controller controls the conducting of the first compressor relay, the
One compressor operating；After postponing certain time length, the second temperature controller controls the conducting of the second compressor relay, the second compressor work
Make；
If the first temperature controller and the second temperature controller are detected simultaneously by the arrival preset defrost time, the first temperature controller and the second temperature
It controls device and issues defrosting request, at this point, the first temperature controller control the first defrosting relay conducting, the first solenoid valve are opened, first steams
Hair blower stops working；After the first temperature controller detects the defrosting of the first refrigeration control system, control the first defrosting relay
Device is closed, and the second temperature controller control the second defrosting relay conducting, second solenoid valve is opened, and the second evaporation fan stops working；
If the first refrigeration control system breaks down, the second refrigeration control system is worked normally.
6. a kind of dual system reach in freezer, including cabinet body, which is characterized in that be provided in the cabinet body the first refrigeration control system with
Second refrigeration control system, first refrigeration control system include the first temperature controller, the first compressor, the first solenoid valve, the
One condensation fan and the first evaporation fan, first compressor, the first solenoid valve, the first condensation fan and the first evaporation
Blower is connect with the first temperature controller and the second temperature controller simultaneously；Second refrigeration control system include the second temperature controller,
Second compressor, second solenoid valve, the second condensation fan and the second evaporation fan, second compressor, second solenoid valve,
Second condensation fan and the second evaporation fan are connect with the first temperature controller and the second temperature controller simultaneously.
7. dual system reach in freezer according to claim 6, which is characterized in that first refrigeration control system further wraps
The first temperature sensor and the first defrosting sensor are included, the first defrosting sensor is arranged on the first evaporator, steams for acquiring
Device temperature is sent out, first temperature sensor is arranged on the first evaporation fan bracket, for acquiring return air temperature, the first defrost
Sensor and the first temperature sensor are connect with the first temperature controller and the second temperature controller；Second refrigeration control system into
One step includes second temperature sensor and the second defrosting sensor, and the second defrosting sensor is arranged on the second evaporator, is used for
Evaporator temperature is acquired, the second temperature sensor is arranged on the second evaporation fan bracket, for acquiring return air temperature, the
Two defrosting sensors and second temperature sensor are connect with the first temperature controller and the second temperature controller.
8. dual system reach in freezer according to claim 7, which is characterized in that first refrigeration control system further includes
One compressor relay, the first defrosting relay and the first evaporation fan relay, first compressor relay, first remove
White relay and the first evaporation fan relay are connect with the first temperature controller and the second temperature controller, first compressor after
Electric appliance is connect with the first compressor, and the first defrosting relay is connect with the first solenoid valve；The first evaporation fan relay
Device is connect with the first evaporation fan, and second refrigeration control system further includes the second compressor relay, the second defrosting relay
Device and the second evaporation fan relay, second compressor relay, the second defrosting relay and the second evaporation fan relay
Device is connect with the first temperature controller and the second temperature controller, and second compressor relay is connect with the second compressor, described
Second defrosting relay is connect with second solenoid valve；The second evaporation fan relay is connect with second evaporation fan.
9. a kind of refrigeration control method of dual system reach in freezer, using dual system reach in freezer according to any one of claims 8, feature exists
In, if the first temperature controller breaks down, automatically switch to the second temperature controller control the first refrigeration control system work.
10. the refrigeration control method of dual system reach in freezer according to claim 9, which is characterized in that further include:
If the first temperature controller and the second temperature controller are detected simultaneously by each place cabinet return air temperature when being more than default press threshold value,
First temperature controller and the second temperature controller issue press request, at this point, the first temperature controller controls the conducting of the first compressor relay, the
One compressor operating；After postponing certain time length, the second temperature controller controls the conducting of the second compressor relay, the second compressor work
Make；
If the first temperature controller and the second temperature controller are detected simultaneously by the arrival preset defrost time, the first temperature controller and the second temperature
It controls device and issues defrosting request, at this point, the first temperature controller control the first defrosting relay conducting, the first solenoid valve are opened, first steams
Hair blower stops working；After the first temperature controller detects the defrosting of the first refrigeration control system, control the first defrosting relay
Device is closed, and the second temperature controller control the second defrosting relay conducting, second solenoid valve is opened, and the second evaporation fan stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548819.4A CN110160306A (en) | 2019-06-24 | 2019-06-24 | Dual system reach in freezer and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548819.4A CN110160306A (en) | 2019-06-24 | 2019-06-24 | Dual system reach in freezer and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110160306A true CN110160306A (en) | 2019-08-23 |
Family
ID=67625468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910548819.4A Pending CN110160306A (en) | 2019-06-24 | 2019-06-24 | Dual system reach in freezer and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110160306A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393499A (en) * | 2020-10-30 | 2021-02-23 | 安庆三维电器有限公司 | PLC controlled refrigeration and freezing cabinet |
| CN112932195A (en) * | 2021-03-31 | 2021-06-11 | 青岛海容商用冷链股份有限公司 | Fresh food cabinet display cabinet and refrigeration control method thereof |
| WO2022167590A3 (en) * | 2021-02-04 | 2022-09-15 | Lowenco A/S | A cold storage and a method of operating a cold storage |
| WO2024067608A1 (en) * | 2022-09-27 | 2024-04-04 | 青岛海尔特种电冰柜有限公司 | Double-system refrigeration system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0086156A1 (en) * | 1982-02-09 | 1983-08-17 | Ets Bonnet | Programmer for controlling a refrigeration plant with multiple compressors |
| US6438973B1 (en) * | 2000-05-01 | 2002-08-27 | Hoshizaki America, Inc. | Control board alarms |
| CN101268314A (en) * | 2005-09-06 | 2008-09-17 | 丹福斯压缩器有限公司 | A control system and a method for controlling a refrigeration system comprising two or more compressors |
| CN206696730U (en) * | 2017-04-28 | 2017-12-01 | 博太科防爆设备（上海）有限公司 | A kind of nuclear power tracing system |
| CN108444053A (en) * | 2017-02-14 | 2018-08-24 | 阿里巴巴集团控股有限公司 | The control system of air-conditioning and the control method of running state of air conditioner |
| CN109163485A (en) * | 2018-08-27 | 2019-01-08 | 长虹美菱股份有限公司 | A kind of combined refrigerator |
| CN210242134U (en) * | 2019-06-24 | 2020-04-03 | 青岛海容商用冷链股份有限公司 | Double-system freezer |
-
2019
- 2019-06-24 CN CN201910548819.4A patent/CN110160306A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0086156A1 (en) * | 1982-02-09 | 1983-08-17 | Ets Bonnet | Programmer for controlling a refrigeration plant with multiple compressors |
| US6438973B1 (en) * | 2000-05-01 | 2002-08-27 | Hoshizaki America, Inc. | Control board alarms |
| CN101268314A (en) * | 2005-09-06 | 2008-09-17 | 丹福斯压缩器有限公司 | A control system and a method for controlling a refrigeration system comprising two or more compressors |
| CN108444053A (en) * | 2017-02-14 | 2018-08-24 | 阿里巴巴集团控股有限公司 | The control system of air-conditioning and the control method of running state of air conditioner |
| CN206696730U (en) * | 2017-04-28 | 2017-12-01 | 博太科防爆设备（上海）有限公司 | A kind of nuclear power tracing system |
| CN109163485A (en) * | 2018-08-27 | 2019-01-08 | 长虹美菱股份有限公司 | A kind of combined refrigerator |
| CN210242134U (en) * | 2019-06-24 | 2020-04-03 | 青岛海容商用冷链股份有限公司 | Double-system freezer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393499A (en) * | 2020-10-30 | 2021-02-23 | 安庆三维电器有限公司 | PLC controlled refrigeration and freezing cabinet |
| WO2022167590A3 (en) * | 2021-02-04 | 2022-09-15 | Lowenco A/S | A cold storage and a method of operating a cold storage |
| CN112932195A (en) * | 2021-03-31 | 2021-06-11 | 青岛海容商用冷链股份有限公司 | Fresh food cabinet display cabinet and refrigeration control method thereof |
| CN112932195B (en) * | 2021-03-31 | 2022-06-14 | 青岛海容商用冷链股份有限公司 | Fresh food cabinet display cabinet and refrigeration control method thereof |
| WO2024067608A1 (en) * | 2022-09-27 | 2024-04-04 | 青岛海尔特种电冰柜有限公司 | Double-system refrigeration system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110160306A (en) | Dual system reach in freezer and its control method | |
| US9217597B2 (en) | Low pressure control for signaling a time delay for ice making cycle start up | |
| CN100425932C (en) | Freezing system with hot-liquid defrosting function | |
| CN103591749B (en) | A kind of wind-cooling electric refrigerator and refrigerating method thereof with three-circulation refrigerating system | |
| CN110779260B (en) | Three-circulation quick-cooling frost-free refrigerator and continuous operation method thereof | |
| CN101655302A (en) | Photoelectric sensing hot gas bypass defrosting refrigerator and working method | |
| CN108759247A (en) | A kind of dual system wind cooling refrigerator and its refrigeration control method with deep cooling function | |
| CN104456794B (en) | Refrigeration device | |
| CN106766479B (en) | A kind of the simple gate refrigerator and its control method of temperature-changeable | |
| CN102589182A (en) | Refrigeration system, refrigerator having the refrigeration system and controlling method of the refrigerator | |
| CN109163490A (en) | A kind of refrigerator and its control method and control device | |
| CN107883599A (en) | Independent control multi-temp-region Intelligent refrigeration thermostatic equipment | |
| CN206930033U (en) | Electric expansion valve hot gas defrosting system Condensing units | |
| CN106257179A (en) | Refrigerator and the method controlling described refrigerator | |
| CN112460903A (en) | Refrigeration defrosting system and refrigeration equipment | |
| CN210242134U (en) | Double-system freezer | |
| CN106091457B (en) | Refrigeration system and its control method and control device, refrigerator | |
| CN111059786A (en) | Parallel refrigeration system for refrigerator and refrigerator | |
| CN202562123U (en) | Refrigerating system and refrigerator provided with same | |
| CN105805995B (en) | More refrigerators share condensation unit autonomous control system | |
| CN111148954B (en) | Control method and device of food storage equipment and storage medium | |
| CN108954999A (en) | Electric expansion valve hot gas defrosting system Condensing units | |
| CN205641712U (en) | Many independent control system of freezer sharing condensation unit | |
| CN207471883U (en) | A kind of change compartment refrigeration system of refrigerator and refrigerator | |
| JP4845560B2 (en) | Cooling system |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190823 |