CN205536804U - Supplementary defroster of forced air cooling refrigerator - Google Patents
Supplementary defroster of forced air cooling refrigerator Download PDFInfo
- Publication number
- CN205536804U CN205536804U CN201620111346.3U CN201620111346U CN205536804U CN 205536804 U CN205536804 U CN 205536804U CN 201620111346 U CN201620111346 U CN 201620111346U CN 205536804 U CN205536804 U CN 205536804U
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- water
- defrosting
- branch road
- valve
- press
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Abstract
The utility model discloses a supplementary defroster of forced air cooling refrigerator mainly includes parts such as press outer coiled tube, discharge valve, second three -way valve, first branch road hot -water line, second branch road hot -water line, first three -way valve, third spherical valve, defrosting water water storage box, first spherical valve and spray thrower. The discharge valve both ends respectively with press outer coiled tube and the 2nd three - way valve connection, first branch road hot -water line, second branch road hot -water line both ends divide equally do not with a second three -way valve and a three - way valve connection, the third spherical valve is connected with first three -way valve and press outer coiled tube respectively, defrosting water water storage box upper portion is with the refrigeration water collector and freeze the water collector and be connected, the bottom is connected with first spherical valve and second spherical valve. Compared with the prior art, the device has the function of retrieving the supplementary evaporimeter defrosting of compressor heat, and it is asynchronous to weaken the defrosting effectively, shortens the defrosting time, reduces defrosting power.
Description
[technical field]
This utility model relates to a kind of wind cooling refrigerator subsidiary defrosting device, belongs to double-circulation air-cooled refrigerator assisting defrosting technical field in parallel.
[background technology]
Having data to show, when evaporator surface frost thickness reaches 10mm, refrigeration for refrigerator ability will decline 30%, and i.e. if it is desired that ice the temperature inside the box reaches setting, the available machine time to extend 1/3.Therefore, when frost layer runs up to certain thickness, it is necessary to vaporizer is defrosted, to recover the heat transfer property of vaporizer, to reduce the energy consumption of system.
The most most widely used is electric heated defrosting technology, and it includes again two kinds: aluminum matter pipe heat-conducting defrost technology and quartz ampoule radiant type defrost technology.The heating defrosting of aluminum matter pipe heat-conducting defrost technology i.e. resistance wire overcoat aluminum pipe, by Resistant heating aluminum pipe, heat is conducted to frost layer by aluminum fin-stock, makes frost layer heat absorption melt.Quartz ampoule radiant type defrost technology is around nichrome resistance wire in quartz ampoule, utilizes its selectivity function far infrared radiation function to carry out defrost, and this defrost engineering reliability is high, electric heating conversion efficiency is higher.
In addition with steam defrost technology, ultrasound wave defrost technology, absorption defrost technology.Steam defrost technology is that the refrigerant superheat steam utilizing compressor to flow out is directly entered vaporizer, reaches defrost purpose at vaporizer release heat, but owing to its system is complicated with control, it is adaptable to miniature cold storage system.Ultrasound wave defrost technology is to utilize ul-trasonic irradiation in frost layer and air, frost layer is pulverized or interference steam frosting, although this technology has, energy consumption is little, moisturizing good refreshing effect, without advantages such as parasitic thermal load, but structure is complicated, cost high, treat to study further optimization.Absorption defrost technology is then the steam in use desiccant rapid selective absorbing cold room, it is substantially reduced the relative humidity of indoor, can fundamentally inhibit the generation of frost, there is not defrost problem, thus without refrigeration and the switching problem of defrost occur, the selection of adsorption desiccant and recycle most important, and desiccant need to be regularly replaced, the drying loss speed of food can increase simultaneously, therefore is not applied to actual product.
During described refrigerator stable operation, compression case temperature can reach about 60 DEG C, affects system energy efficiency in order to avoid compressor temperature is too high, it is generally required to blower fan dispels the heat to compressor, but this can cause heat to dissipate.Additionally, during defroster, need electric heating tube additionally to vaporizer heat supply, defrosting time length, power are high, temperature is high, all considerably increase system power consumption.If reclaiming and shift the defrosting of compressor heat auxiliary evaporator, then can reduce heat and dissipate, when can save again part defrosting, heat need to be added to system.
Therefore this utility model at compression case external surface compact disc around water coil, defrost by reclaiming and shift compressor heat auxiliary evaporator, weaken defrosting asynchronism, shorten the time, reduce defrosting power；By water coil to cooling compressor, beneficially compressor maintains the operation of high energy efficiency point.The recyclable system thermal of this device, reduce heat and dissipate, heat need to be added to system when can save again part defrosting, therefore there is the features such as defrosting efficiency height, time short, good energy-conserving effect.
[utility model content]
The utility model proposes a kind of wind cooling refrigerator subsidiary defrosting device, it is therefore an objective to reclaim compressor heat assisting defrosting, weaken defrosting asynchronism, shorten defrosting time, reduce defrosting power.
This utility model purpose is achieved through the following technical solutions:
A kind of wind cooling refrigerator subsidiary defrosting device, including: the first branch road hot-water line being arranged on refrigerating evaporator overhead coil, the second branch road hot-water line being arranged on refrigeration evaporator overhead coil and tightly around the outer coil pipe of press on the compressor, the first branch road hot-water line and the second branch road hot-water line connect two assisting defrosting water loops of formation by the outer coil pipe of two three-way valve and press respectively；The water made outside the first branch road hot-water line, the second branch road hot-water line and press in coil pipe by arranging water-circulating pump on the outlet pipe of the outer coil pipe of press is circulated；The cold preservation drip tray of collection defrosting water and freezing drip tray are divided into two after being mixed by pipeline, and a water pipe coil pipe outer with press is connected to assisting defrosting water loop moisturizing, and another pipeline that discharges water is for being expelled directly out unnecessary defrosting water.
It is provided with the first globe valve on described adjutage, described water pipe is provided with the second globe valve.
Being provided with level sensor on the entrance of the outer coil pipe of described press, the first globe valve, the second globe valve and level sensor are all connected with valve control, for the timely discharge to assisting defrosting water loop moisturizing and unnecessary defrosting water.
It is provided with the 3rd globe valve on the entrance pipe of the outer coil pipe of described press, the export pipeline of the outer coil pipe of press is provided with effusion meter, air bleeding valve and the 4th globe valve.
The freezing defrosting termination temperature-sensitive bag being arranged on refrigerating evaporator and the cold preservation defrosting being arranged on refrigeration evaporator terminate temperature-sensitive Bao Junyu the 3rd globe valve, the 4th globe valve and water-circulating pump and connect, and are independently controlled assisting defrosting water loop.
Described first branch road hot-water line is close to refrigerating evaporator overhead coil surface；Described second branch road hot-water line, is close to refrigeration evaporator overhead coil surface；The outer coil pipe compact disc of described press is wound on compression case external surface.
Relative to prior art, this utility model has the advantage that
This utility model around water coil at compression case external surface compact disc, defrosts by reclaiming and shift compressor heat auxiliary evaporator, weakens defrosting asynchronism, shorten the time, reduce defrosting power；By water coil to cooling compressor, beneficially compressor maintains the operation of high energy efficiency point.Cold preservation drip tray and freezing drip tray connect the water charging system of composition Guan Bi water branch road, first and second branch road hot-water line is close to freezing, refrigeration evaporator overhead coil surface respectively, first branch road hot-water line is used for assisting freezing electric heating tube defrosting, and described second branch road hot-water line is used for assisting refrigeration evaporator return air defrost；The recyclable system thermal of this device, reduce heat and dissipate, heat need to be added to system when can save again part defrosting, therefore there is the features such as defrosting efficiency height, time short, good energy-conserving effect.
Further, the first level sensor, the first valve control, the first globe valve, spray thrower and nozzle composition opened water branch road, by controlling the first valve control, the first level sensor controls whether the first globe valve supplies water to spray thrower；For cleaning showers wire tube condenser；
Further, described freezing defrosting terminates temperature-sensitive bag and cold preservation defrosting terminates temperature-sensitive Bao Junke and independently controls the 3rd globe valve, the 4th globe valve and water-circulating pump；Realize regulating internal temperature of refrigerator at any time, prevent unexpected generation.
[accompanying drawing explanation]
Fig. 1 is system structure schematic diagram of the present utility model；
Wherein: 1. freezing defrosting terminates temperature-sensitive bag, 2. refrigerating evaporator, 3. the first branch road hot-water line, 4. cold preservation defrosting terminates temperature-sensitive bag, 5. refrigeration evaporator, 6. the second branch road hot-water line, 7. cold preservation drip tray, 8. water spilage tray, 9. the first globe valve, 10. the second globe valve, 11. first three-way valve, 12. valve controls, 13. level sensors, 14. the 3rd globe valves, the outer coil pipe of 15. press, 16. water-circulating pumps, 17. effusion meters, 18. compressors, 19. air bleeding valves, 20. the 4th globe valves, 21. second three-way valve, 22. freezing drip trays, 23. freezing electric heating tubes, 24. cold preservation return air inlets.
[detailed description of the invention]
Below in conjunction with the accompanying drawings, detailed description of the invention of the present utility model is described in detail, but this utility model is not limited to this embodiment.Understand thoroughly to make the public that this utility model to be had, preferably execute detailed description concrete details in example at following this utility model.
As shown in Figure 1, this utility model one wind cooling refrigerator subsidiary defrosting device, mainly includes the outer coil pipe 15 of press, air bleeding valve the 19, second three-way valve the 21, first branch road hot-water line the 3, second branch road hot-water line the 6, first three-way valve 11, the 3rd globe valve 14, cold preservation drip tray 7, the freezing parts such as drip tray 22, the 4th globe valve 20.This utility model tightly around water coil, reclaims and shifts the defrosting of compressor heat auxiliary evaporator in compression case surface.This device can effectively weaken defrosting asynchronism, shortens the time, reduces power, and makes compressor maintain the operation of high energy efficiency point.
The outer coil pipe 15 of press, tightly around on compressor 18 surface, for lowering the temperature to compressor 18, and absorbs the heat produced when storing its operation；
Air bleeding valve 19, is used for maintaining the Guan Bi intrasystem pressure of water, it is ensured that security of system；
First branch road hot-water line 3, is close to refrigerating evaporator 2 overhead coil surface, is used for assisting freezing electric heating tube defrosting；
Second branch road hot-water line 6, is close to refrigeration evaporator 5 overhead coil surface, is used for assisting refrigeration evaporator return air defrost；
First three-way valve 11, gives the first branch road hot-water line 3 or the second branch road hot-water line 6 heat supply assisting defrosting for switching control；
Second three-way valve 21, is used for combining the first three-way valve 9 and switches water branch road；
Second globe valve 10, controls the moisturizing in water-retention stage in time first powering on；
Wherein, described first, two branch road hot-water lines 3 and 6 are close to freezing respectively, refrigeration evaporator 2 and 5 overhead coil surface, the outer coil pipe 15 of described press is tightly around on compressor 18 surface, described air bleeding valve 19 two ends coil pipe 15 outer with press and the second three-way valve 21 respectively are connected, described first branch road hot-water line 3, second branch road hot-water line 6 two ends are connected 11 with the second three-way valve 21 and the first three-way valve respectively, described 3rd globe valve 11 coil pipe 15 outer with the first three-way valve 11 and press respectively is connected, it is connected with the first globe valve 9 and the second globe valve 10 bottom described cold preservation drip tray 7 and freezing drip tray 22, the other end of described first globe valve 9 leads to drip tray 8.
The outer coil pipe 15 of described first three-way valve the 11, the 3rd globe valve 14, press, water-circulating pump 16, effusion meter the 17, the 4th globe valve the 20, second three-way valve 21 and the first branch road hot-water line 3 form the first Guan Bi water branch road, the outer coil pipe 15 of described first three-way valve the 11, the 3rd globe valve 14, press, water-circulating pump 16, effusion meter the 17, the 4th globe valve the 20, second three-way valve 21 and the second branch road hot-water line 6 form the second Guan Bi water branch road, and the switching of the first Guan Bi water branch road and the second Guan Bi water branch road is jointly controlled by the first three-way valve 11 and the second three-way valve 21；Described level sensor the 13, second globe valve 14 and the make-up water supply control system of valve control 12 composition Guan Bi water branch road.
Specifically, described first branch road hot-water line 3, it is close to refrigerating evaporator overhead coil surface, is used for assisting freezing electric heating tube defrosting, described second branch road hot-water line, is close to refrigeration evaporator 2 overhead coil surface, is used for assisting refrigeration evaporator 2 return air defrost；Described freezing electric heating tube 23 has two stage power pattern, is adjusted to low-power mode during described first branch road hot-water line 3 assisting defrosting.To reduce the power consumption of refrigerator system.
Specifically, described freezing defrosting terminates temperature-sensitive bag 1 and cold preservation defrosting terminates temperature-sensitive bag 4 and all can independently control the 3rd globe valve the 14, the 4th globe valve 20 and water-circulating pump 16；Described first globe valve 9 and the linkage of the second globe valve 10 are controlled by valve control 12, and during a unlatching, another is closed；
The operation principle of this device is described below in detail:
1. the water-retention stage after first powering on:
When first powering on, the first globe valve 9 cuts out, and the second globe valve 10 is opened, and the 3rd globe valve 14 cuts out, and the 4th globe valve 20 cuts out, and water-circulating pump 24 is not started shooting.After compressor 18 starts, refrigeration system starts normally to work: during refrigeration for refrigerator, return air in casing is after the vaporizer of low temperature cools down, temperature reduces, steam in return air can be condensed into water droplet between evaporator heat exchange tube-surface and fin, and then condensing into frost, and proceeding along with kind of refrigeration cycle, frost layer can be the most long-pending more thick.
Refrigeration evaporator 5 feed flow first given by air-cooled Two-way Cycle refrigerator, when cold preservation temperature-sensitive bag temperature is reduced to setting value, switches to refrigerating evaporator 2 feed flow.At freezing run duration; cold preservation blower fan is not shut down; return air defrost is carried out by the return air of cold preservation return air inlet 24; 3rd globe valve 14 and the 4th globe valve 20 are opened simultaneously; the defrosting water of refrigeration evaporator 5 drops onto on cold preservation drip tray 7, flows through the second globe valve 10 under gravity and the 3rd globe valve 14 enters the outer coil pipe 15 of press, rise to higher limit when cold preservation defrosting terminates temperature-sensitive bag 4 temperature; return air defrost terminates, and the 3rd globe valve 14 and the 4th globe valve 20 simultaneously close off.When freezing temperature-sensitive bag temperature temperature is reduced to setting value, compressor 18 is shut down, and room temperature to be refrigerated rises to higher limit, and compressor 18 is started shooting again, to refrigeration evaporator 5 cooling, so goes round and begins again.
When compressor 18 accumulated running time arrives setting value, compressor 18 is shut down, 3rd globe valve 14 and the 4th globe valve 20 are opened simultaneously, freezing electric heating tube 23 opens high power operation pattern, refrigerating evaporator 2 starts electric heated defrosting, heated by thermal updrafts, frost on refrigerating evaporator 2 starts " from the bottom to top " and gradually melts, defrosting water falls the freezing drip tray 22 of lower section, flow into the outer coil pipe 15 of press again, setting value is risen to when freezing defrosting terminates temperature-sensitive bag 1 temperature, freezing electric heating tube 23 quits work, 3rd globe valve 14 and the 4th globe valve 20 simultaneously close off.In time arriving again at 18 accumulated running time of compressor, refrigerating evaporator 2 starts again at defrosting, the most repeatedly, until the water level in the outer coil pipe 15 of press rises to the position of level sensor 13, valve control 12 accepts the actuating signal of level sensor 13, closes the second globe valve 10.So far, the water circuit system moisturizing of assisting defrosting completes, and the second globe valve 10 is no longer opened.
2. the stable operation stage after water-retention completes:
The water circuit system moisturizing of assisting defrosting completes, and the second globe valve 10 forever cuts out, and the first globe valve 9 is forever opened.Afterwards when refrigeration system stable operation, it is distributed in the defrosting water in the outer coil pipe 15 of press, absorbs the caloric value of compressor 18 housing, dispel the heat to compressor 18 simultaneously.When water in the outer coil pipe 15 of press is heated, pipeline inner pressure can raise, and can ensure that Guan Bi water system pressure stability is at safety value by air bleeding valve 19.
When switching to refrigerating evaporator 2 feed flow, cold preservation blower fan is not shut down, and refrigeration evaporator 5 starts return air defrost.Now, the first three-way valve 11 and the second three-way valve 21 all switch to be connected with the second branch road hot-water line 6, the i.e. second Guan Bi water branch road connection, and the 3rd globe valve 14 and the 4th globe valve 20 are opened simultaneously, and water-circulating pump 16 starts.By the defrosting water of compressor 18 housing heating under the driving of water-circulating pump 16, close water branch road internal circulation flow second, when the second branch road hot-water line 6, heat the frost layer of refrigeration evaporator 5 overhead coil, assist return air defrost, period defrosting water drops onto cold preservation drip tray 7, and then flows into water spilage tray 8.Under the auxiliary of the second water branch road hot-water line 6, the time of return air defrost can be greatly shortened, and when cold preservation defrosting termination temperature-sensitive bag 4 temperature rises to setting value, water-circulating pump 16 is shut down, and the 3rd globe valve 14 and the 4th globe valve 20 simultaneously close off.
When refrigerating evaporator 2 arrives defrosting time, freezing electric heating tube 23 is opened low-power gear and is electrically heated defrosting, first three-way valve 11 and the second three-way valve 21 all switch to be connected with the first branch road hot-water line 3, i.e. first Guan Bi water branch road connection, 3rd globe valve 14 and the 4th globe valve 20 are opened simultaneously, and water-circulating pump 16 starts.Similarly, under the driving of water-circulating pump 16, the hot water in the outer coil pipe 15 of press flows through the first branch road hot-water line 3 and assists freezing electric heating tube 23 to defrost, it is ensured that refrigerating evaporator about 2 synchronizes to start defrosting.Defrosting water drops onto freezing drip tray 22, then flows into water spilage tray 8.Defrosting to be frozen terminates temperature-sensitive bag 1 and rises to setting value, and electrical heating all stops defrosting with auxiliary heating, and water-circulating pump 16 is shut down, and the 3rd globe valve 14 and the 4th globe valve 20 simultaneously close off.
Defrosting process, by collecting by reclaiming and shift the defrosting of compressor heat auxiliary evaporator, weakens defrosting asynchronism, shortens the time, reduces defrosting power；By water coil to cooling compressor, beneficially compressor maintains the operation of high energy efficiency point.And by the consumption of water, timely moisturizing in level sensor control system, it is ensured that defrosting is normally carried out.
Above, preferred embodiment the most of the present utility model, it is not limited only to practical range of the present utility model, all equivalence changes done according to the content of this utility model the scope of the claims and modification, all should be technology category of the present utility model.
Claims (6)
1. a wind cooling refrigerator subsidiary defrosting device, it is characterised in that including: be arranged on refrigerating evaporator (2) overhead coil
First branch road hot-water line (3), the second branch road hot-water line (6) being arranged on refrigeration evaporator (5) overhead coil and tightly around compression
The outer coil pipe (15) of press on machine (18), the first branch road hot-water line (3) and the second branch road hot-water line (6) are respectively by two
Three-way valve coil pipe (15) outer with press connects two assisting defrosting water loops of formation；Pass through on the outlet pipe of the outer coil pipe (15) of press
Arrange in water-circulating pump (16) makes the outer coil pipe (15) of the first branch road hot-water line (3), the second branch road hot-water line (6) and press
Water is circulated；The cold preservation drip tray (7) of collection defrosting water and freezing drip tray (22) are divided into two after being mixed by pipeline,
One water pipe coil pipe (15) outer with press is connected to assisting defrosting water loop moisturizing, and another pipeline that discharges water is for directly
Discharge unnecessary defrosting water.
A kind of wind cooling refrigerator subsidiary defrosting device the most according to claim 1, it is characterised in that set on described adjutage
It is equipped with the first globe valve (9), described water pipe is provided with the second globe valve (10).
A kind of wind cooling refrigerator subsidiary defrosting device the most according to claim 2, it is characterised in that the outer coil pipe of described press
(15) level sensor (13), the first globe valve (9), the second globe valve (10) and level sensor it are provided with on entrance
(13) all it is connected with valve control (12), for the timely discharge to assisting defrosting water loop moisturizing and unnecessary defrosting water.
A kind of wind cooling refrigerator subsidiary defrosting device the most according to claim 1, it is characterised in that the outer coil pipe of described press
(15) it is provided with the 3rd globe valve (14) on entrance pipe, the export pipeline of the outer coil pipe (15) of press is provided with effusion meter
(17), air bleeding valve (19) and the 4th globe valve (20).
A kind of wind cooling refrigerator subsidiary defrosting device the most according to claim 4, it is characterised in that be arranged on refrigerating evaporator
(2) the freezing defrosting on terminates temperature-sensitive bag (1) and the cold preservation defrosting being arranged on refrigeration evaporator (5) terminates temperature-sensitive bag (4)
All it is connected with the 3rd globe valve (14), the 4th globe valve (20) and water-circulating pump (16), is independently controlled assisting defrosting water
Loop.
A kind of wind cooling refrigerator subsidiary defrosting device the most according to claim 1, it is characterised in that described first branch road hot water
Pipe (3) is close to refrigerating evaporator (2) overhead coil surface；Described second branch road hot-water line (6), is close to refrigeration evaporator (5)
Overhead coil surface；Outer coil pipe (15) compact disc of described press is wound on compressor (18) housing outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620111346.3U CN205536804U (en) | 2016-02-03 | 2016-02-03 | Supplementary defroster of forced air cooling refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620111346.3U CN205536804U (en) | 2016-02-03 | 2016-02-03 | Supplementary defroster of forced air cooling refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205536804U true CN205536804U (en) | 2016-08-31 |
Family
ID=56776591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620111346.3U Expired - Fee Related CN205536804U (en) | 2016-02-03 | 2016-02-03 | Supplementary defroster of forced air cooling refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205536804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696852A (en) * | 2019-10-22 | 2021-04-23 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
-
2016
- 2016-02-03 CN CN201620111346.3U patent/CN205536804U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696852A (en) * | 2019-10-22 | 2021-04-23 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN112696852B (en) * | 2019-10-22 | 2024-04-09 | 海信（山东）冰箱有限公司 | Refrigerator with a refrigerator body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20180203 |