CN108507244A - A kind of Wind-cooling type refrigerating box intelligent defrosting mechanism - Google Patents
A kind of Wind-cooling type refrigerating box intelligent defrosting mechanism Download PDFInfo
- Publication number
- CN108507244A CN108507244A CN201711141836.3A CN201711141836A CN108507244A CN 108507244 A CN108507244 A CN 108507244A CN 201711141836 A CN201711141836 A CN 201711141836A CN 108507244 A CN108507244 A CN 108507244A
- Authority
- CN
- China
- Prior art keywords
- evaporator
- triple valve
- capillary
- air
- refrigerating box
- 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
- 238000010257 thawing Methods 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 title claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 3
- 238000001514 detection method Methods 0.000 claims abstract 3
- 239000003507 refrigerant Substances 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
- F25B2347/023—Set point defrosting
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of Wind-cooling type refrigerating box intelligent defrosting mechanisms, including evaporator, condenser, compressor, muffler, gas tank, device for drying and filtering, refrigerating box, triple valve is installed on pipeline between device for drying and filtering and evaporator, triple valve inlet communication device for drying and filtering, a triple valve wherein outlet No.1 capillary, another outlet of triple valve is connected with No. two capillaries, No.1 capillary and No. two capillaries are connected to air-cooled evaporator, it further include controller, whether the cabinet inner sensor of the evaporator sensor and detection in-cabinet temperature of frost is had on detection evaporator, when evaporator sensor detects that evaporator needs defrost, controller control triple valve switches to No. two capillary pipeline automatic defrostings；When cabinet inner sensor detects that in-cabinet temperature is more than setting value, controller control triple valve switches to No.1 capillary pipeline.The present invention realizes automatic defrosting by switching pipeline, is preserved to article in cabinet more preferable.
Description
Technical field
The invention belongs to refrigerating box technical field more particularly to a kind of Wind-cooling type refrigerating box intelligent defrosting mechanisms.
Background technology
The operation principle of Wind-cooling type refrigerating box is freezed using air, is provided by the evaporation fan in refrigerating box empty
Air in refrigerating box is flowed through built-in evaporator by flow of air power by air duct cycle（It is separated with refrigerator inner wall）When, by
Low in air themperature height, condenser temperature, the two directly carries out heat exchange, and the temperature of air will reduce.However, being deposited in air
There is vapor, vapor to condense to the cold, thus Wind-cooling type refrigerating box also can frosting, refrigerating box works long hours, on an evaporator
Can condense has frost, is exactly refrigeration compressor mainly by defrosting naturally or evaporator heating defrosting for the frost of this part
It is operated synchronously with frost removal timer, when refrigeration compressor is accumulative runs to timing frost removal timer setting time (general 8 hours
Left and right), compressor shuts down with frost removal timer, and defrost at this time nature defrost or heating system start, condensation it is white by
It can become water after heat, then (or directly flashing to vapor) is discharged by dedicated conduit, to reach defrost purpose.Such as Fig. 1 institutes
It is shown as the air-cooled refrigerating box operating diagram of tradition, when evaporator surface temperature is to 5 DEG C, compressor start, frost removal timer weight
New timework.
But during removing the frost of evaporator surface, evaporator temperature increases, and heat exchange is carried out in air, cold
The temperature upper limit for preserving article can be also well over raising, such refrigerating box by hiding the temperature in babinet, if it is Medical cold
Case is hidden, temperature control area requirement is stringenter（At 2 DEG C -8 DEG C）, so during automatic defrosting, or there is damage and preserve
The risk of article.
Invention content
It is carried the purpose of the present invention is preserving the risk of article in the presence of damage during defrosting for existing refrigerating box
For a kind of Wind-cooling type refrigerating box intelligent defrosting mechanism.
To achieve the goals above, the technical solution used in the present invention is：
A kind of Wind-cooling type refrigerating box intelligent defrosting mechanism, including air-cooled evaporator, air cooled condenser, compressor, muffler,
Gas tank, device for drying and filtering, refrigerating box, device for drying and filtering connects air-cooled evaporator by No.1 capillary, in dry filter
Triple valve is installed, triple valve inlet communication device for drying and filtering, triple valve is wherein on the pipeline between device and air-cooled evaporator
Another outlet of one outlet No.1 capillary, triple valve is connected with No. two capillaries, No.1 capillary and No. two capillaries
It is connected to air-cooled evaporator, further includes the controller for controlling triple valve switching outlet, the steaming for whether having frost on evaporator is detected
It sends out device sensor and detects the cabinet inner sensor of in-cabinet temperature, when evaporator sensor detects that evaporator needs defrost, control
Device control triple valve processed switches to No. two capillary pipeline automatic defrostings；When cabinet inner sensor detects that in-cabinet temperature is more than setting value
When, controller control triple valve switches to No.1 capillary pipeline.
In the case of same inner diameter, described No. two capillary pipe lengths are less than No.1 capillary pipe length.
The triple valve is solenoid valve.
Beneficial effects of the present invention：The present invention realizes automatic defrosting by switching pipeline, and defrosting time is held more preferably, cold
It is accurate to hide the control of cabinet temperature, article in cabinet is preserved more preferable.
Description of the drawings
Fig. 1 is the structural schematic diagram of background technology；
Fig. 2 is the structural schematic diagram of the present invention.
Specific implementation mode
With reference to embodiment, the present invention will be further described.
A kind of Wind-cooling type refrigerating box intelligent defrosting mechanism as shown in Figure 2, including air-cooled evaporator 1, air-cooled condensation
Device 2, compressor 3, muffler 4, gas tank 5, device for drying and filtering 6, refrigerating box, device for drying and filtering 6 are connected by No.1 capillary 8
Air-cooled evaporator 1, is equipped with triple valve 9 on the pipeline between device for drying and filtering 6 and air-cooled evaporator 1, triple valve 9 into
Mouth connection device for drying and filtering 6, triple valve 9 wherein an outlet No.1 capillary 8, another outlet of triple valve 9 are connected with two
Number capillary 10, No.1 capillary 8 are connected to air-cooled evaporator 1 with No. two capillaries 10, further include that control triple valve 9 switches
The controller 11 of outlet detects the evaporator sensor 12 for whether having frost on evaporator and detects the cabinet inner sensor of in-cabinet temperature
7, when evaporator sensor 12 detects that evaporator 1 needs defrost, controller 11 controls triple valve 9 and switches to No. two capillaries
10 road automatic defrostings；When cabinet inner sensor 7 detects that in-cabinet temperature is more than setting value, controller 11 controls triple valve 9 and switches
To 8 tunnel of No.1 capillary.In the case of same inner diameter, described No. two 10 length of capillary are less than 8 length of No.1 capillary.
The triple valve 9 is solenoid valve.
It is to increase an electric T-shaped valve and segment length capillary appropriate in original refrigeration system.Detailed process
As described below, refrigerating box controller determines a need for defrost, by adjusting electric T-shaped valve break-make, to change the stream of refrigerant
To adjusting refrigerant flows to No.1 capillary by device for drying and filtering and still flows to No. two capillaries.In original refrigeration system
Upper suitable shortening capillary pipe length plays the role of nature to evaporator defrost, and true to improve the evaporating temperature of evaporator
The temperature in babinet is protected in normal warm area, ensures the storage of article in refrigerating box.
Capillary pipe length calculates empirical equation
L=
Mono- pressure differences of △ P in formula（）, unit Pa；
Mono- Reynolds numbers of Re；
Mono- capillary pipe lengths of L, unit m
Mono- refrigerant flow rates of W, unit m/s；
Mono- refrigerant densities of ρ, unit kg/m3；
Mono- capillary inner diameters of d, unit m.
Controller makes intellectual determination, control defrost according to refrigerating box actual motion state simultaneously.It can also set certainly
The defrost condition of definition：Into the condition of defrost, such as into the defrost time, defrost warm area range；The condition of defrost is exited,
Such as defrost final temperature, maximum defrost time etc..When refrigerating box enters defrost pattern, controller control compressor continues first
Work, opens simultaneously electric T-shaped valve, No. two capillaries of refrigerant flow direction, the at this time minimum evaporating temperature critical value meeting of evaporator
It increases, is also increased with heat exchange temperature is carried out in air（Perfect condition air outlet temperature is at 5 DEG C）, and controller is real-time
Receive evaporator sensor and cabinet inner sensor signal.In order to ensure fluctuating temperature works as refrigerating box without departing from 8 DEG C in refrigerating box
Interior cabinet inner sensor temperature sensor exceeds 8 DEG C, and controller closes Electrocontrolled tee valve, controls refrigerant flow direction No.1 capillary,
Defrost pattern is exited, evaporator evaporating temperature restores original refrigerating capacity, and refrigerating box the temperature inside the box then lowers, it is ensured that entireization
White process, refrigeration the temperature inside the box fluctuate between 2 DEG C -8 DEG C up and down.As Fig. 2 indicates that the air-cooled refrigerating box work of intelligent defrosting is shown
It is intended to.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, those ordinary skill in the art's simply changes
All it is within protection scope of the present invention with replacing.
Claims (3)
1. a kind of Wind-cooling type refrigerating box intelligent defrosting mechanism, including air-cooled evaporator, air cooled condenser, compressor, return-air
Pipe, gas tank, device for drying and filtering, refrigerating box, device for drying and filtering connect air-cooled evaporator by No.1 capillary, and feature exists
In：Triple valve, triple valve inlet communication dry filter are installed on the pipeline between device for drying and filtering and air-cooled evaporator
Device, a triple valve wherein outlet No.1 capillary, another outlet of triple valve is connected with No. two capillaries, No.1 capillary
It is connected to air-cooled evaporator with No. two capillaries, further includes the controller for controlling triple valve switching outlet, detect on evaporator
The cabinet inner sensor for whether having the evaporator sensor and detection in-cabinet temperature of frost, when evaporator sensor detects that evaporator needs
When wanting defrost, controller control triple valve switches to No. two capillary pipeline automatic defrostings；When cabinet inner sensor detects temperature in cabinet
When degree is more than setting value, controller control triple valve switches to No.1 capillary pipeline.
2. a kind of air-cooled refrigerating box intelligent defrosting mechanism according to claim 1, it is characterised in that：In same inner diameter
In the case of, described No. two capillary pipe lengths are less than No.1 capillary pipe length.
3. a kind of air-cooled refrigerating box intelligent defrosting mechanism according to claim 1, it is characterised in that：The triple valve
For solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711141836.3A CN108507244A (en) | 2017-11-17 | 2017-11-17 | A kind of Wind-cooling type refrigerating box intelligent defrosting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711141836.3A CN108507244A (en) | 2017-11-17 | 2017-11-17 | A kind of Wind-cooling type refrigerating box intelligent defrosting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108507244A true CN108507244A (en) | 2018-09-07 |
Family
ID=63375402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711141836.3A Pending CN108507244A (en) | 2017-11-17 | 2017-11-17 | A kind of Wind-cooling type refrigerating box intelligent defrosting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108507244A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07110184A (en) * | 1993-10-15 | 1995-04-25 | Sharp Corp | Refrigerator |
| JPH11190580A (en) * | 1997-12-26 | 1999-07-13 | Toshiba Corp | Refrigerator |
| KR20040000962A (en) * | 2002-06-26 | 2004-01-07 | 엘지전자 주식회사 | cooling apparatus and method of controling the apparatus in the refrigerator |
| US20050279119A1 (en) * | 2002-12-24 | 2005-12-22 | Jae-Seng Sim | Refrigerator, and method for controlling operation of the same |
| JP2011237076A (en) * | 2010-05-07 | 2011-11-24 | Mitsubishi Electric Corp | Refrigerator and freezer device |
| KR20120044556A (en) * | 2010-10-28 | 2012-05-08 | 엘지전자 주식회사 | Refrigerator and control method thereof |
| CN202304238U (en) * | 2011-09-13 | 2012-07-04 | 合肥美菱股份有限公司 | Multi-capillary combination and single-evaporator frequency conversion air-cooled frostless refrigerator |
| JP2014048032A (en) * | 2012-09-04 | 2014-03-17 | Sharp Corp | Refrigerator |
| CN103913041A (en) * | 2013-01-08 | 2014-07-09 | 株式会社东芝 | Refrigerator |
| CN104676988A (en) * | 2015-02-28 | 2015-06-03 | 合肥晶弘电器有限公司 | Refrigerating system for refrigerator and control method thereof |
| JP2016211804A (en) * | 2015-05-12 | 2016-12-15 | ホシザキ株式会社 | Cooling storage box |
| CN207865773U (en) * | 2017-11-17 | 2018-09-14 | 中科美菱低温科技股份有限公司 | A kind of Wind-cooling type refrigerating box intelligent defrosting mechanism |
-
2017
- 2017-11-17 CN CN201711141836.3A patent/CN108507244A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07110184A (en) * | 1993-10-15 | 1995-04-25 | Sharp Corp | Refrigerator |
| JPH11190580A (en) * | 1997-12-26 | 1999-07-13 | Toshiba Corp | Refrigerator |
| KR20040000962A (en) * | 2002-06-26 | 2004-01-07 | 엘지전자 주식회사 | cooling apparatus and method of controling the apparatus in the refrigerator |
| US20050279119A1 (en) * | 2002-12-24 | 2005-12-22 | Jae-Seng Sim | Refrigerator, and method for controlling operation of the same |
| JP2011237076A (en) * | 2010-05-07 | 2011-11-24 | Mitsubishi Electric Corp | Refrigerator and freezer device |
| KR20120044556A (en) * | 2010-10-28 | 2012-05-08 | 엘지전자 주식회사 | Refrigerator and control method thereof |
| CN202304238U (en) * | 2011-09-13 | 2012-07-04 | 合肥美菱股份有限公司 | Multi-capillary combination and single-evaporator frequency conversion air-cooled frostless refrigerator |
| JP2014048032A (en) * | 2012-09-04 | 2014-03-17 | Sharp Corp | Refrigerator |
| CN103913041A (en) * | 2013-01-08 | 2014-07-09 | 株式会社东芝 | Refrigerator |
| CN104676988A (en) * | 2015-02-28 | 2015-06-03 | 合肥晶弘电器有限公司 | Refrigerating system for refrigerator and control method thereof |
| JP2016211804A (en) * | 2015-05-12 | 2016-12-15 | ホシザキ株式会社 | Cooling storage box |
| CN207865773U (en) * | 2017-11-17 | 2018-09-14 | 中科美菱低温科技股份有限公司 | A kind of Wind-cooling type refrigerating box intelligent defrosting mechanism |
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| Date | Code | Title | Description |
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| 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 |
Application publication date: 20180907 |