CN105716355A - Auxiliary defrosting device and method for air cooling refrigerator - Google Patents
Auxiliary defrosting device and method for air cooling refrigerator Download PDFInfo
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- CN105716355A CN105716355A CN201610077019.5A CN201610077019A CN105716355A CN 105716355 A CN105716355 A CN 105716355A CN 201610077019 A CN201610077019 A CN 201610077019A CN 105716355 A CN105716355 A CN 105716355A
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- 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
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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- 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
- F25D21/06—Removing frost
- F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant system
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- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The invention discloses an auxiliary defrosting device and method for an air cooling refrigerator. The auxiliary defrosting device mainly comprises a compressor outer coil pipe, a first branch hot water pipe, a second branch hot water pipe, a defrosted water storage tank and the like, wherein two ends of an exhaust valve are connected with the compressor outer coil pipe and a second three-way valve separately; two ends of the first branch hot water pipe as well as two ends of the second branch hot water pipe are connected with the second three-way valve and a first three-way valve separately; a third spherical valve is connected with the first three-way valve and the compressor outer coil pipe; the upper part of the defrosted water storage tank is connected with a refrigeration water receiving plate and a freezing water receiving plate; the bottom of the defrosted water storage tank is connected with a first spherical valve and a second spherical valve; and the other end of the first spherical valve is connected with a sprayer. Compared with the prior art, the device has the functions of recovering heat of a compressor, assisting defrosting, collecting defrosted water, cleaning a condenser and the like, so as to effectively reduce asynchronous defrosting, shorten defrosting time, and reduce defrosting power.
Description
[technical field]
The present invention relates to double-circulation air-cooled defroster in parallel and condenser dedusting is held concurrently technical field of heat dissipation, particularly relate to a kind of wind cooling refrigerator subsidiary defrosting device and method.
[background technology]
Having data to show, when evaporator surface frost thickness reaches 10mm, refrigeration for refrigerator ability will decline 30%, and namely 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.
Most widely used at present 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.Aluminum matter pipe heat-conducting defrost technology and the heating defrosting of 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, discharges heat at vaporizer and reaches defrost purpose, 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 use the steam in the rapid selective absorbing cold room of desiccant, it is substantially reduced the relative humidity of indoor, can fundamentally inhibit the generation of frost, it is absent from 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 also applied to actual product.
During refrigerator stable operation, compression case temperature can reach about 60 DEG C, and in order to avoid the too high influential system efficiency of compressor temperature, it is generally required to blower fan dispels the heat to compressor, but this can cause heat to dissipate.Additionally, during defroster, it is necessary to electric heating tube additionally gives vaporizer heat supply, and 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.
[summary of the invention]
The present invention proposes a kind of wind cooling refrigerator subsidiary defrosting device and method, it is therefore an objective to reclaims compressor heat assisting defrosting and collects defrosting water cleaning condenser, weakening defrosting asynchronism, shorten defrosting time, reduce defrosting power.
The present invention seeks to be achieved through the following technical solutions:
A kind of wind cooling refrigerator subsidiary defrosting device, including: the second branch road hot-water line of be arranged on the first branch road hot-water line on refrigerating evaporator overhead coil, being arranged on refrigeration evaporator overhead coil with connect respectively through the outer coil pipe of two three-way valve and press 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 and form two assisting defrosting water loops；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, cold preservation drip tray and the freezing drip tray of collecting defrosting water are all connected with defrosting water water storage box, and the outlet of defrosting water water storage box is connected for assisting defrosting water loop moisturizing with the outer coil pipe of press.
As a further improvement on the present invention, the water supplement port of described defrosting water water storage box is provided with the second globe valve, the entrance of the outer coil pipe of press is provided with the second level sensor, second globe valve and the second level sensor are all connected with the second valve control,, the second valve control receives the second level sensor feedback signal and controls the second globe valve to assisting defrosting water loop moisturizing.
As a further improvement on the present invention, the inwall of described defrosting water water storage box is provided with the first globe valve, the dewatering outlet of defrosting water water storage box arranges the first level sensor, first globe valve and the first level sensor are all connected with the first valve control, and the first valve control receives the feedback signal of the first level sensor and controls the moisture storage capacity in defrosting water water storage box.
As a further improvement on the present invention, the pipeline lower end of the dewatering outlet of described defrosting water water storage box is provided with shines, for the water in defrosting water water storage box is uniformly sprayed, the spray thrower being carried out dedusting and cooling on wire tube condenser surface, is provided with nozzle bottom spray thrower.
As a further improvement on the present invention, described nozzle is arranged in the bottom of spray thrower according to the mode of " middle comb thin two close, middle, two is thick ".
As a further improvement on the present invention, the entrance pipe of the outer coil pipe of described press is provided with the 3rd globe valve, the export pipeline of the outer coil pipe of press is provided with effusion meter, air bleeding valve and the 4th globe valve.
As a further improvement on the present invention, the freezing defrosting termination temperature-sensitive bag being arranged on refrigerating evaporator terminates temperature-sensitive Bao Junyu the 3rd globe valve, the 4th globe valve and water-circulating pump with the cold preservation defrosting being arranged on refrigeration evaporator and connects, and is independently controlled assisting defrosting water loop.
A kind of wind cooling refrigerator assisting defrosting method, comprises the following steps:
After first powering on, the defrosting water of refrigeration evaporator and refrigerating evaporator separately flows on cold preservation drip tray and freezing drip tray, defrosting water flows into defrosting water water storage box under gravity, and then flow into tightly around the outer coil pipe of press on the compressor, when the second level sensor water level on the outer coil pipe of press arrives setting value, second valve control controls the second globe valve of defrosting water water storage box and stops moisturizing, and assisting defrosting water loop moisturizing first completes；
Being distributed in the defrosting water in the outer coil pipe of press, absorb the caloric value of compressor housing, dispel the heat to compressor simultaneously, the water in the outer coil pipe of press is heated；The defrosting water heated by compressor housing, under the driving of water-circulating pump, heats the frost layer of refrigeration evaporator overhead coil through the second branch road hot-water line, assists return air defrost；Flow through the first freezing electric heating tube defrosting of branch road hot-water line auxiliary；
During assisting defrosting, defrost water droplet flows in defrosting water water storage box store temporarily from cold preservation drip tray and freezing drip tray respectively；When in assisting defrosting water loop, the second level sensor water level is less than setting value, the interim water storage in defrosting water water storage box carries out moisturizing again；
When the first level sensor water level in defrosting water water storage box exceedes setting value, open the first globe valve draining.
As a further improvement on the present invention, described freezing electric heating tube has two stage power pattern, is adjusted to low-power mode during the first branch road hot-water line assisting defrosting.
As a further improvement on the present invention; the water that the first described globe valve is discharged uniformly is sprayed solarization and is carried out dedusting and cooling on wire tube condenser surface by spray thrower; compressor shutdown simultaneously; condensation fan stall; after spray thrower water supply cleaning showers wire tube condenser, the condensation fan in wind cooling refrigerator is than compressor delay start.
Relative to prior art, the invention have the advantages that
The present invention coils water coil in compressor housing intimate, 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, be conducive to compressor to maintain high energy efficiency point and run.Defrosting water water storage box top connects to form the water charging system of Guan Bi water branch road with cold preservation drip tray and freezing drip tray, 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 feature such as defrosting efficiency height, time short, good energy-conserving effect.
Additionally, arrange defrosting water water storage box in condenser overhead, collecting defrosting water regular cleaning showers condenser, described spray thrower is arranged in wire tube condenser top, is regularly provided with nozzle bottom it, can give condenser dedusting, heat radiation.This device can effectively weaken defrosting asynchronism, shortens the time, reduces power, and makes compressor maintain the operation of high energy efficiency point, reduces the thermal resistance that condenser surface deposition dust brings.
Further, freezing electric heating tube has two stage power pattern, is adjusted to low-power mode during described first branch road hot-water line assisting defrosting；To reduce the power consumption of refrigerator system.
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, nozzle is arranged at wire tube condenser top " middle comb thin two close, middle, two is thick ", dedusting, radiating effect optimum, it is capable of lowering the temperature in the segment set of high-temperature region, wire tube condenser two, ensure that the wire tube condenser various piece temperature difference minimizes, it is prevented that the uneven instrument damage caused of lowering the temperature.
Further, described freezing defrosting termination temperature-sensitive bag and cold preservation defrosting terminate temperature-sensitive Bao Junke and independently control the 3rd globe valve, the 4th globe valve and water-circulating pump；Realize regulating internal temperature of refrigerator at any time, it is prevented that unexpected generation.
The Defrost method of the present invention, by being collected by recovery and shifting the defrosting of compressor heat auxiliary evaporator, weakens defrosting asynchronism, shortens the time, reduce defrosting power；By water coil to cooling compressor, be conducive to compressor to maintain high energy efficiency point and run.And by the consumption of water, timely moisturizing in level sensor control system, it is ensured that defrosting is normally carried out.
Preferably, after described spray thrower water supply cleaning showers wire tube condenser, condensation fan postpones 1min than compressor and starts.Prevent condensation fan from shower water sucking condensation fan region.
[accompanying drawing explanation]
Fig. 1 is the system structure schematic diagram of the present invention；
Fig. 2 is the spray thrower lower end arrangement of nozzles schematic diagram of the present invention.
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. the first level sensor, 9. the first valve control, 10. defrosting water water storage box, 11. spray thrower, 12. nozzle, 13. wire tube condenser, 14. water spilage tray, 15. press exhaustor, 16. the first globe valve, 17. the second globe valve, 18. the first three-way valve, 19. condensation fan, 20. the second valve control, 21. the 3rd globe valve, 22. the outer coil pipe of press, 23. the second level sensor, 24. water-circulating pump, 25. effusion meter, 26. compressor, 27. air bleeding valve, 28. the 4th globe valve, 29. the second three-way valve, 30. freezing drip tray, 31. freezing electric heating tube, 32. cold preservation return air inlet.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but the invention is not restricted to this embodiment.Understand thoroughly to make the public that the present invention to be had, preferably execute detailed description concrete details in example in present invention below.
As shown in Figure 1, one wind cooling refrigerator subsidiary defrosting device of the present invention, mainly includes the parts such as the outer coil pipe 22 of press, air bleeding valve the 27, second three-way valve the 29, first branch road hot-water line the 3, second branch road hot-water line the 6, first three-way valve 18, the 3rd globe valve 21, cold preservation drip tray 7, freezing drip tray 30, defrosting water water storage box the 10, first globe valve 16 and spray thrower 11.The present invention tightly around water coil at compressor 26 surface of shell, reclaims and shifts the defrosting of compressor 26 heat auxiliary evaporator, collect defrosting water by defrosting water water storage box 10, and control spray thrower 11 routine cleaning wire tube condenser 13.This device can effectively weaken defrosting asynchronism, shortens the time, reduces power, and makes compressor maintain the operation of high energy efficiency point, reduces the thermal resistance that condenser surface deposition dust brings.Specifically,
The outer coil pipe 22 of press, tightly around on compressor 26 surface, for lowering the temperature to compressor 26, and absorbs the heat produced when storing its operation；
Air bleeding valve 27, for maintaining the pressure in Guan Bi water system, 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 31 to defrost；
Second branch road hot-water line 6, is close to refrigeration evaporator 5 overhead coil surface, is used for assisting refrigeration evaporator 5 return air defrost；
First three-way valve 18, 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 29, is used for switching water branch road in conjunction with the first three-way valve 18；
First level sensor 8, for detecting water level in defrosting water water storage box 10, and controls the first globe valve 16 and supplies water to spray thrower 11；
First globe valve 16, receives the signal of the first level sensor 8, for controlling to supply water to spray thrower 11；
Second globe valve 17, during for first powering on, the moisturizing in water-retention stage controls；
Defrosting water water storage box 10, for collecting the defrosting water from cold preservation drip tray 7 and freezing drip tray 30；
Spray thrower 11, is carried out dedusting and cooling for the water of defrosting water water storage box 10 is uniformly sprayed solarization on wire tube condenser 13 surface；
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 22 of described press is tightly around on compressor 26 surface, described spray thrower 11 is arranged in wire tube condenser 13 top, nozzle 12 regularly it is provided with bottom it, described air bleeding valve 27 two ends are connected with the outer coil pipe 22 of press and the second three-way valve 29 respectively, described first branch road hot-water line 3, second branch road hot-water line 6 two ends are connected with the second three-way valve 29 and the first three-way valve 18 respectively, described 3rd globe valve 21 is connected with the outer coil pipe 22 of the first three-way valve 18 and press respectively, described defrosting water water storage box 10 top is connected with cold preservation drip tray 7 and freezing drip tray 30, bottom is connected with the first globe valve 16 and the second globe valve 17, for collecting the defrosting water from cold preservation drip tray 7 and freezing drip tray 30；The other end of described first globe valve 16 is connected with spray thrower 11.
The outer coil pipe 22 of described first three-way valve the 18, the 3rd globe valve 21, press, water-circulating pump 24, effusion meter the 25, the 4th globe valve the 28, second three-way valve 29 and the first branch road hot-water line 3 form the first Guan Bi water branch road, the outer coil pipe 22 of described first three-way valve the 18, the 3rd globe valve 21, press, water-circulating pump 24, effusion meter the 25, the 4th globe valve the 28, second three-way valve 29 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 18 and the second three-way valve 29；Described freezing drip tray 30, cold preservation drip tray 7, defrosting water water storage box the 10, first globe valve 16, spray thrower 11 and nozzle 12 form opened water branch road, for cleaning showers wire tube condenser 13；Described defrosting water water storage box the 10, first level sensor the 8, first globe valve 16 and the first valve control 9 form the closed-loop control system of spray thrower；The make-up water supply control system of described defrosting water water storage box the 10, second level sensor the 23, second globe valve 17 and the second valve control 20 composition Guan Bi water branch road.
Described freezing electric heating tube 31 has two stage power pattern, is adjusted to low-power mode during described first branch road hot-water line 3 assisting defrosting；By controlling the first valve control 9, described first level sensor 8 controls whether the first globe valve 16 supplies water to spray thrower 11；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 21, the 4th globe valve 28 and water-circulating pump 24.Also including: described spray thrower 11 supplies water after cleaning showers wire tube condenser 13, condensation fan 19 postpones 1min than compressor and starts.
Such as Fig. 2, the nozzle 12 of described spray thrower 11 is arranged at wire tube condenser 13 top " middle comb thin two close, middle, two is thick ".It is capable of lowering the temperature in the segment set of high-temperature region, wire tube condenser two, it is ensured that the wire tube condenser various piece temperature difference minimizes, it is prevented that the uneven instrument damage caused of lowering the temperature.
It is described below in detail point three phases and method of work and the principle of the present invention is described:
1. the water-retention stage after first powering on:
When first powering on, the first globe valve 16 cuts out, and the second globe valve 17 is opened, and the first three-way valve 18 switches to and is connected with defrosting water water storage box 10, and the 3rd globe valve 21 cuts out, and the 4th globe valve 28 cuts out, and water-circulating pump 24 is not started shooting.After compressor 26 starts, refrigeration system starts normal operation: in refrigeration for refrigerator process, return air in casing is after the evaporator cools of low temperature, 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 more 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 32, 3rd globe valve 21 and the 4th globe valve 28 are opened simultaneously, the defrosting water of refrigeration evaporator 5 drops onto on cold preservation drip tray 7, flow under the influence of gravity into defrosting water water storage box 10, and then by the second globe valve 17, first three-way valve 18, 3rd globe valve 21 flows into the outer coil pipe 22 of press, the defrosting water entered in the outer coil pipe 22 of press starts absorb and store compressor 26 heat, higher limit is risen to when cold preservation defrosting terminates temperature-sensitive bag 4 temperature, return air defrost terminates, 3rd globe valve 21 and the 4th globe valve 28 simultaneously close off.When freezing temperature-sensitive bag temperature temperature is reduced to setting value, compressor 26 is shut down, and room temperature to be refrigerated rises to higher limit, and compressor 26 is started shooting again, to refrigeration evaporator 5 cooling, so goes round and begins again.
When compressor 26 accumulated running time arrives setting value, compressor 26 is shut down, 3rd globe valve 21 and the 4th globe valve 28 are opened simultaneously, freezing electric heating tube 31 opens high power operation pattern, refrigerating evaporator 2 starts electric heated defrosting, it is subject to the heating of thermal updrafts, frost on refrigerating evaporator 2 starts " from the bottom to top " and melts gradually, defrosting water falls the freezing drip tray 30 of lower section, enter defrosting water water storage box 10, flow into the outer coil pipe 22 of press again, setting value is risen to when freezing defrosting terminates temperature-sensitive bag 1 temperature, freezing electric heating tube 31 quits work, 3rd globe valve 21 and the 4th globe valve 28 simultaneously close off.In time arriving again at 26 accumulated running time of compressor, refrigerating evaporator 2 starts again at defrosting, so repeatedly, until the water level in the outer coil pipe 22 of press rises to the position of the second level sensor 23, the second level sensor 23 controls the second valve control 20 and forever closes the second globe valve 17.So far, the water circuit system moisturizing of assisting defrosting completes, and the second globe valve 17 is no longer opened.
2. water-retention complete after stable operation stage:
The water circuit system moisturizing of assisting defrosting completes, and the second globe valve 17 cuts out, and the first globe valve 16 still remains turned-off.Afterwards when refrigeration system stable operation, it is distributed in the defrosting water in the outer coil pipe 22 of press, absorbs the caloric value of compressor 26 housing, dispel the heat to compressor 26 simultaneously.When water in the outer coil pipe 22 of press is heated, pipeline inner pressure can raise to some extent, can pass through air bleeding valve 27 and ensure that Guan Bi water system pressure stability is at safety value.
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 18 and the second three-way valve 29 all switch to and are connected with the second branch road hot-water line 6, i.e. the second Guan Bi water branch road connection, and the 3rd globe valve 21 and the 4th globe valve 28 are opened simultaneously, and water-circulating pump 24 starts.By the defrosting water of compressor 26 housing heating under the driving of water-circulating pump 24, water branch road internal circulation flow is closed second, the frost layer of refrigeration evaporator 5 overhead coil is heated when the second branch road hot-water line 6, auxiliary return air defrost, period defrosting water drops onto cold preservation drip tray 7, and then inflow defrosting water water storage box 10 stores.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 24 is shut down, and the 3rd globe valve 21 and the 4th globe valve 28 simultaneously close off.
When refrigerating evaporator 2 arrives defrosting time, freezing electric heating tube 31 is opened low-power shelves and is electrically heated defrosting, first three-way valve 18 and the second three-way valve 29 all switch to and are connected with the first branch road hot-water line 3, i.e. the first Guan Bi water branch road connection, 3rd globe valve 21 and the 4th globe valve 28 are opened simultaneously, and water-circulating pump 24 starts.Similarly, under the driving of water-circulating pump 24, the hot water in the outer coil pipe 22 of press flows through the first branch road hot-water line 3 and assists freezing electric heating tube 31 to defrost, it is ensured that refrigerating evaporator about 2 synchronizes to start defrosting.Defrosting water drops onto freezing drip tray 30, then flows in defrosting water water storage box 10 and store temporarily.Defrosting to be frozen terminates temperature-sensitive bag 1 and rises to setting value, and electrical heating all stops with auxiliary heating defrosting, and water-circulating pump 24 is shut down, and the 3rd globe valve 21 and the 4th globe valve 28 simultaneously close off.
3. the cleaning showers condenser stage:
Freezing electric heating tube 31 assisting defrosting assisted by such first branch road hot-water line 3; constantly carrying out of cold preservation return air defrost assisted by second branch road hot-water line 6; when the water level of defrosting water water storage box 10 arrives the first level sensor 8 position; compressor 26 is shut down; condensation fan 19 stall; first level sensor 8 opens the first globe valve 16 by controlling the first valve control 9, and the defrosting water saved bit by bit in defrosting water water storage box 10 uniformly sprays solarization to wire tube condenser 13 by the nozzle 12 of spray thrower 11.The water droplet that spray is shone flows from top to bottom, and take away the dust of wire tube condenser 13 surface deposition, a part of water droplet is in higher wire tube condenser 13 surface evaporation of temperature, and unevaporated water droplet is low in drip tray 14, by press exhaustor 15 heating evaporation when start again.
When, after the defrosting water emptying that defrosting water water storage box 10 is saved bit by bit, the first globe valve 16 cuts out.Along with refrigeration system persistent loop runs, until when the water level of defrosting water water storage box 10 arrives again at the position of the first level sensor 8, first valve control 9 is again turned on the first globe valve valve 16, wire tube condenser 13 is carried out dedusting, cooling, so goes round and begins again.
Compared with prior art, this device has recovery compressor heat assisting defrosting and collects the functions such as defrosting water cleaning condenser, effectively weakens defrosting asynchronous, shortens defrosting time, reduces defrosting power.
Above, being only presently preferred embodiments of the present invention, be not limited only to the practical range of the present invention, all equivalences done according to the content of the scope of the claims of the present invention change and modify, and all should be the technology category of the present invention.
Claims (10)
1. a wind cooling refrigerator subsidiary defrosting device, it is characterized in that, including: the second branch road hot-water line (6) of be arranged on the first branch road hot-water line (3) on refrigerating evaporator (2) overhead coil, being arranged on refrigeration evaporator (5) overhead coil with connect with press coil pipe (22) outward respectively through two three-way valve tightly around the outer coil pipe (22) of the press on compressor (26), the first branch road hot-water line (3) and the second branch road hot-water line (6) and form two assisting defrosting water loops；The water made outside the first branch road hot-water line (3), the second branch road hot-water line (6) and press in coil pipe (22) by arranging water-circulating pump (24) on the outlet pipe of the outer coil pipe (22) of press is circulated, cold preservation drip tray (7) and the freezing drip tray (30) of collecting defrosting water are all connected with defrosting water water storage box (10), and the water supplement port of defrosting water water storage box (10) is connected for assisting defrosting water loop moisturizing with the outer coil pipe (22) of press.
2. a kind of wind cooling refrigerator subsidiary defrosting device according to claim 1, it is characterized in that, the water supplement port of described defrosting water water storage box (10) is provided with the second globe valve (17), the entrance of the outer coil pipe (22) of press is provided with the second level sensor (23), second globe valve (17) and the second level sensor (23) are all connected with the second valve control (20), and the second valve control (20) receives the second level sensor (23) feedback signal and controls the second globe valve (17) to assisting defrosting water loop moisturizing.
3. a kind of wind cooling refrigerator subsidiary defrosting device according to claim 1, it is characterized in that, the inwall of described defrosting water water storage box (10) is provided with the first globe valve (16), the dewatering outlet of defrosting water water storage box (10) arranges the first level sensor (8), first globe valve (16) and the first level sensor (8) are all connected with the first valve control (9), and the first valve control (9) receives the feedback signal of the first level sensor (8) and controls the moisture storage capacity in defrosting water water storage box (10).
4. a kind of wind cooling refrigerator subsidiary defrosting device according to claim 3, it is characterized in that, the pipeline lower end of the dewatering outlet of described defrosting water water storage box (10) is provided with shines, for the water in defrosting water water storage box (10) is uniformly sprayed, the spray thrower (11) being carried out dedusting and cooling on wire tube condenser (13) surface, and spray thrower (11) bottom is provided with nozzle (12).
5. a kind of wind cooling refrigerator subsidiary defrosting device according to claim 4, it is characterised in that described nozzle (12) is arranged in the bottom of spray thrower (11) according to the mode of " middle comb thin two close, middle, two is thick ".
6. a kind of wind cooling refrigerator subsidiary defrosting device according to claim 1, it is characterized in that, the entrance pipe of the outer coil pipe (22) of described press is provided with the 3rd globe valve (21), the export pipeline of the outer coil pipe (22) of press is provided with effusion meter (25), air bleeding valve (27) and the 4th globe valve (28).
7. a kind of wind cooling refrigerator subsidiary defrosting device according to claim 6, it is characterized in that, the freezing defrosting being arranged on refrigerating evaporator (2) terminates temperature-sensitive bag (1) and cold preservation defrosting termination temperature-sensitive bag (4) being arranged on refrigeration evaporator (5) is all connected with the 3rd globe valve (21), the 4th globe valve (28) and water-circulating pump (24), is independently controlled assisting defrosting water loop.
8. a wind cooling refrigerator assisting defrosting method, it is characterised in that comprise the following steps:
After first powering on, the defrosting water of refrigeration evaporator (5) and refrigerating evaporator (2) separately flows on cold preservation drip tray (7) and freezing drip tray (30), defrosting water flows into defrosting water water storage box (10) under gravity, and then flow into tightly around the outer coil pipe (22) of the press on compressor (26), when the second level sensor (23) water level on the outer coil pipe (22) of press arrives setting value, second valve control (20) controls second globe valve (17) of defrosting water water storage box (10) and stops moisturizing, assisting defrosting water loop moisturizing first completes；
Being distributed in the defrosting water in the outer coil pipe (22) of press, absorb the caloric value of compressor (26) housing, give compressor (26) heat radiation simultaneously, the water in the outer coil pipe (22) of press is heated；By the defrosting water of compressor (26) housing heating under the driving of water-circulating pump (24), when the second branch road hot-water line (6), heat the frost layer of refrigeration evaporator (5) overhead coil, assist return air defrost；Flow through the first freezing electric heating tube (31) defrosting of branch road hot-water line (3) auxiliary；
During assisting defrosting, defrost water droplet flows into interim in defrosting water water storage box (10) storage from cold preservation drip tray (7) and freezing drip tray (30) respectively；When in assisting defrosting water loop, the second level sensor (23) water level is less than setting value, the interim water storage in defrosting water water storage box (10) carries out moisturizing again；
When the first level sensor (8) water level in defrosting water water storage box (10) exceedes setting value, open the first globe valve (16) draining.
9. a kind of wind cooling refrigerator assisting defrosting method according to claim 8, it is characterised in that described freezing electric heating tube (31) has two stage power pattern, is adjusted to low-power mode during the first branch road hot-water line (3) assisting defrosting.
10. a kind of wind cooling refrigerator assisting defrosting method according to claim 8; it is characterized in that; the water that described the first globe valve (16) is discharged is shone by spray thrower (11) uniformly spray and is carried out dedusting and cooling on wire tube condenser (13) surface; compressor (26) is shut down simultaneously; condensation fan (19) stall; after spray thrower (11) water supply cleaning showers wire tube condenser (13), the condensation fan (19) in wind cooling refrigerator is than compressor (26) delay start.
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| CN201610077019.5A CN105716355B (en) | 2016-02-03 | 2016-02-03 | A kind of wind cooling refrigerator subsidiary defrosting device and method |
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| CN107621117A (en) * | 2017-10-30 | 2018-01-23 | 广西万山香料有限责任公司 | Panel-assembled cold store for anise-oil freezing and crystallizing |
| CN108266863A (en) * | 2017-12-29 | 2018-07-10 | 广东高而美制冷设备有限公司 | The control method that a kind of defrost exhaust-heat absorption recycles |
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| CN109226019A (en) * | 2018-10-15 | 2019-01-18 | 四方科技集团股份有限公司 | A kind of cleaning device on the spot for quick freezing unit |
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| CN113945050A (en) * | 2021-10-13 | 2022-01-18 | 珠海格力电器股份有限公司 | Defrosting system and control method of refrigerator and refrigerator |
| CN114608230A (en) * | 2020-12-09 | 2022-06-10 | 福建佰时德能源科技有限公司 | Evaporator system control method and control device |
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| CN106016875A (en) * | 2016-07-14 | 2016-10-12 | 天津商业大学 | Compressor waste heat recycling type hot water defrosting refrigeration system |
| CN107621117A (en) * | 2017-10-30 | 2018-01-23 | 广西万山香料有限责任公司 | Panel-assembled cold store for anise-oil freezing and crystallizing |
| CN108266863A (en) * | 2017-12-29 | 2018-07-10 | 广东高而美制冷设备有限公司 | The control method that a kind of defrost exhaust-heat absorption recycles |
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| CN108844265A (en) * | 2018-08-27 | 2018-11-20 | 天津商业大学 | A kind of energy-saving and water-saving type heat water-spraying removes defrosting system |
| CN109226019A (en) * | 2018-10-15 | 2019-01-18 | 四方科技集团股份有限公司 | A kind of cleaning device on the spot for quick freezing unit |
| CN109226019B (en) * | 2018-10-15 | 2023-09-15 | 四方科技集团股份有限公司 | Quick-freezing equipment on-site cleaning method |
| CN111536762A (en) * | 2020-05-19 | 2020-08-14 | 烟台大学 | Novel freeze dryer for recycling defrosting water by using residual heat and operation method thereof |
| CN112033071A (en) * | 2020-08-17 | 2020-12-04 | 珠海格力电器股份有限公司 | Refrigerator and defrosting method thereof |
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| CN114608230A (en) * | 2020-12-09 | 2022-06-10 | 福建佰时德能源科技有限公司 | Evaporator system control method and control device |
| CN114608230B (en) * | 2020-12-09 | 2024-05-03 | 福建佰时德能源科技有限公司 | Evaporator system control method and control device |
| CN112964009A (en) * | 2021-02-23 | 2021-06-15 | 珠海格力电器股份有限公司 | Refrigerating device with self-cleaning condenser |
| CN112964009B (en) * | 2021-02-23 | 2022-02-01 | 珠海格力电器股份有限公司 | Refrigerating device with self-cleaning condenser |
| CN113945050A (en) * | 2021-10-13 | 2022-01-18 | 珠海格力电器股份有限公司 | Defrosting system and control method of refrigerator and refrigerator |
| CN114636224A (en) * | 2022-03-31 | 2022-06-17 | 青岛海尔空调电子有限公司 | Air conditioning system, method and device for controlling air conditioning system, and storage medium |
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| WO2024073827A1 (en) * | 2022-10-05 | 2024-04-11 | Gav Representação Comercial Ltda Me | Structural arrangement for an aluminium wire evaporator and condenser |
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