CN105716355B - A kind of wind cooling refrigerator subsidiary defrosting device and method - Google Patents
A kind of wind cooling refrigerator subsidiary defrosting device and method Download PDFInfo
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- CN105716355B CN105716355B CN201610077019.5A CN201610077019A CN105716355B CN 105716355 B CN105716355 B CN 105716355B CN 201610077019 A CN201610077019 A CN 201610077019A CN 105716355 B CN105716355 B CN 105716355B
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The invention discloses a kind of wind cooling refrigerator subsidiary defrosting device and method, defroster mainly includes the parts such as press outer coil pipe, tie point hot-water line, the second branch road hot-water line and defrosting water water storage box.Air bleeding valve both ends are connected with coil pipe outside press and the second triple valve respectively, tie point hot-water line, the second branch road hot-water line both ends are respectively connected with the second triple valve and the first triple valve, 3rd globe valve is connected with coil pipe outside the first triple valve and press respectively, defrosting water water storage upper box part is connected with refrigeration drip tray and freezing drip tray, bottom is connected with the first globe valve and the second globe valve, and the other end of the first globe valve is connected with spray thrower.Compared with prior art, the device with recovery compressor heat assisting defrosting and collects the functions such as defrosting water cleaning condenser, and effectively decrease defrosting is asynchronous, shortens defrosting time, reduces defrosting power.
Description
【Technical field】
The present invention relates to double-circulation air-cooled defroster in parallel and condenser dedusting and technical field of heat dissipation, more particularly to one
Kind wind cooling refrigerator subsidiary defrosting device and method.
【Background technology】
There is data to show, when evaporator surface frost thickness reaches 10mm, refrigeration for refrigerator ability will decline 30%, i.e., if
Ice the temperature inside the box is set to reach setting, the available machine time will extend 1/3.Therefore, when frost layer runs up to certain thickness, it is necessary to right
Evaporator is defrosted, with the energy consumption recovered the heat transfer property of evaporator, reduce system.
Most widely used at present is electric heated defrosting technology, and it includes two kinds again：Aluminum pipe heat-conducting defrost technology and
Quartz ampoule radiant type defrost technology.Aluminum pipe heat-conducting defrost technology is the heating defrosting of resistance wire overcoat aluminum pipe, passes through resistance wire
Aluminum pipe is heated, heat is conducted to frost layer by aluminum fin-stock, melts frost layer heat absorption.Quartz ampoule radiant type defrost technology is in quartz ampoule
It is interior around nichrome resistance wire, utilize its selective function far infrared radiation function to carry out defrost, this defrost engineering reliability is high, electricity
Thermal transition efficiency is higher.
In addition with hot gas defrost technology, ultrasonic wave defrost technology, absorption defrost technology.Hot gas defrost technology is to utilize pressure
The refrigerant superheat steam of contracting machine outflow is directly entered evaporator, reaches defrost purpose in evaporator release heat, but due to it
System and control it is complicated, suitable for miniature cold storage system.Ultrasonic wave defrost technology is in frost layer and sky using ul-trasonic irradiation
Gas, frost layer is crushed or disturbed vapor frosting, energy consumption is small, moisturizing is of good preservation effect although the technology has, is born without additional heat
The advantages that lotus, but it is complicated, cost is high, treat further research optimization.Adsorbing defrost technology is selected rapidly using drier
Selecting property absorbs the vapor in refrigerating chamber, substantially reduces the relative humidity of interior, can fundamentally inhibit the generation of frost, not deposit
In defrost problem, therefore be not in refrigeration and the switching problem of defrost, weight is extremely closed in the selection and recycling of adsorption desiccant
Will, and drier need to be regularly replaced, while the drying loss speed of food can increase, therefore it is not applied to actual product also.
During refrigerator stable operation, compression case temperature can reach 60 DEG C or so, in order to avoid compressor temperature is too high
System energy efficiency is influenceed, blower fan is generally required and is radiated to compressor, but this can cause heat to dissipate.In addition, during defroster,
Need electric heating tube additionally to evaporator heat supply, defrosting time is long, power is high, temperature is high, all considerably increases system power consumption.
If reclaiming simultaneously transfer compression machine heat auxiliary evaporator defrosting, heat dissipation can be reduced, when and can saves part defrosting
Need to be to the heating amount of system.
【The content 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 auxiliary and removes
Frost and collection defrosting water cleaning condenser, weaken defrosting asynchronism, shorten defrosting time, reduction defrosting power.
The present invention seeks to what is be achieved through the following technical solutions：
A kind of wind cooling refrigerator subsidiary defrosting device, including：The tie point hot water being arranged on refrigerating evaporator overhead coil
The second branch road hot-water line for manage, being arranged on refrigeration evaporator overhead coil and tightly around coil pipe outside press on the compressor, first
Branch road hot-water line and the second branch road hot-water line connect to form two assisting defrostings by two triple valves with coil pipe outside press respectively
Water loop；On the outlet pipe of the outer coil pipe of press by set water-circulating pump make tie point hot-water line, the second branch road hot-water line and
Water in the outer coil pipe of press is circulated, and the refrigeration drip tray and freezing drip tray for collecting defrosting water connect with defrosting water water storage box
Connect, delivery port and the outer coil pipe of press of defrosting water water storage box are connected to give assisting defrosting water loop moisturizing.
As a further improvement on the present invention, the second globe valve is provided with the water supplement port of described defrosting water water storage box,
Be provided with the second level sensor on the entrance of the outer coil pipe of press, the second globe valve and the second level sensor with the second valve control
Device connection processed, the second valve control receives the second level sensor feedback signal and controls the second globe valve to be returned to assisting defrosting water
Road moisturizing.
As a further improvement on the present invention, the first globe valve is provided with the inwall of described defrosting water water storage box, melted
First level sensor is set on the dewatering outlet of white water water storage box, the first globe valve and the first level sensor with the first valve control
Device connection processed, the first valve control receive the moisture storage capacity in the feedback signal control defrosting water water storage box of the first level sensor.
As a further improvement on the present invention, the pipeline lower end of the dewatering outlet of described defrosting water water storage box, which is provided with, is used for
Water in defrosting water water storage box is uniformly sprayed the spray thrower for shining and carrying out cleaning dedusting and cooling on wire tube condenser surface, spray thrower
Bottom is provided with nozzle.
As a further improvement on the present invention, described nozzle according to " centre comb two is close, middle thin two is thick " side
Formula is arranged in the bottom of spray thrower.
As a further improvement on the present invention, the 3rd globe valve is provided with the entrance pipe of the outer coil pipe of described press,
Flowmeter, air bleeding valve and the 4th globe valve are provided with the export pipeline of the outer coil pipe of press.
As a further improvement on the present invention, the freezing defrosting being arranged on refrigerating evaporator terminates temperature-sensitive bag and is arranged on
Refrigeration defrosting on refrigeration evaporator terminates the globe valves of temperature-sensitive Bao Junyu the 3rd, the 4th globe valve connects with water-circulating pump, carries out
Independent control 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 into refrigeration drip tray and freezing water receiving
On disk, defrosting water flows into defrosting water water storage box under gravity, and then flows into tightly around coil pipe outside press on the compressor, when
When the second level sensor water level on the outer coil pipe of press reaches setting value, the of the second valve control control defrosting water water storage box
Two globe valves stop moisturizing, and assisting defrosting water loop moisturizing first is completed；
The defrosting water being distributed in the outer coil pipe of press, absorbs the caloric value of compressor housing, while is radiated to compressor, pressure
Water in the outer coil pipe of machine is heated；By the defrosting water of compressor housing heating under the driving of water-circulating pump, by the second branch road
The frost layer of refrigeration evaporator overhead coil is heated during hot-water line, aids in return air defrost；Flow through tie point hot-water line auxiliary freezing electricity
Heating tube defrosts；
During assisting defrosting, defrost water droplet is flowed into defrosting water water storage box and faced from refrigeration drip tray and freezing drip tray respectively
When store；It is interim in defrosting water water storage box when the second level sensor water level is less than setting value in assisting defrosting water loop
Water storage carries out moisturizing again；
When the first level sensor water level in defrosting water water storage box exceedes setting value, the first globe valve draining is opened.
As a further improvement on the present invention, described freezing electric heating tube has two stage power pattern, tie point hot water
Low-power mode is adjusted to during pipe assisting defrosting.
As a further improvement on the present invention, the water of the first described globe valve discharge uniformly sprays solarization by spray thrower in silk
Pipework condensation device surface carries out cleaning dedusting and cooling, while compressor shutdown, condensation fan stalling, spray thrower water supply cleaning showers
After wire tube condenser, the condensation fan in wind cooling refrigerator is than compressor delay start.
Relative to prior art, the present invention has advantages below：
The present invention, around water coil, is steamed in compression case external surface compact disc by recovery and transfer compression machine heat auxiliary
Device defrosting is sent out, weakens defrosting asynchronism, shortens the time, reduces defrosting power；By water coil to cooling compressor, be advantageous to
Compressor maintains the operation of high energy efficiency point.Defrosting water water storage upper box part is connected composition closure with refrigeration drip tray and freezing drip tray
The water charging system of water branch road, first and second branch road hot-water line are close to freezing, refrigeration evaporator top row pipe surface respectively, first
Road hot-water line is used to aid in freezing electric heating tube defrosting, and the second branch road hot-water line is used to aid in refrigeration evaporator return air
Frost；The recyclable system thermal of the device, reduce heat and dissipate, and can is saved need to be to the heating amount of system, therefore when part is defrosted
Have the characteristics that defrosting efficiency is high, the time is short, good energy-conserving effect.
In addition, arranging defrosting water water storage box in condenser overhead, defrosting water and periodically cleaning showers condenser are collected, it is described
Spray thrower is arranged at the top of wire tube condenser, and its bottom is regularly provided with nozzle, can give condenser dedusting, radiating.The device
Defrosting asynchronism can effectively be weakened, shorten the time, reduce power, and compressor is maintained the operation of high energy efficiency point, reduced cold
The thermal resistance that condenser surface deposition dust is brought.
Further, freezing electric heating tube has a two stage power pattern, is adjusted to during the tie point hot-water line assisting defrosting low
Power mode；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, the first level sensor control whether the first globe valve supplies water to spray thrower by controlling the first valve control；For
Cleaning showers wire tube condenser；
Further, nozzle is in wire tube condenser top " centre comb two is close, middle thin two is thick " arrangement, dedusting, radiating
Effect is optimal, can realize and cool in the segment set of wire tube condenser two high-temperature region, ensure that wire tube condenser various pieces
The temperature difference minimizes, prevent from cooling it is uneven caused by instrument damage.
Further, it is spherical to terminate temperature-sensitive Bao Junke independent controls the 3rd for the freezing defrosting termination temperature-sensitive bag and refrigeration defrosting
Valve, the 4th globe valve and water-circulating pump；Realization adjusts internal temperature of refrigerator at any time, prevents unexpected generation.
The Defrost method of the present invention, defrosted, weakened by recovery and transfer compression machine heat auxiliary evaporator by collecting
Defrost asynchronism, shortens the time, reduces defrosting power；By water coil to cooling compressor, be advantageous to compressor and maintain
High energy efficiency point is run.And by the dosage of level sensor control system reclaimed water, timely moisturizing, ensure that defrosting is normally carried out.
Preferably, after the spray thrower water supply cleaning showers wire tube condenser, condensation fan opens than compressor delay 1min
It is dynamic.Prevent condensation fan from shower water is sucked into condensation fan region.
【Brief description of the drawings】
Fig. 1 is the system structure 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 evaporators, 3. tie point hot-water lines, 4. refrigeration defrostings are eventually
Only temperature-sensitive bag, 5. refrigeration evaporators, 6. second branch road hot-water lines, 7. refrigeration drip trays, 8. first level sensors, 9. first valves
Controller, 10. defrosting water water storage boxes, 11. spray throwers, 12. nozzles, 13. wire tube condensers, 14. water spilage trays, the exhaust of 15. press
Pipe, 16. first globe valves, 17. second globe valves, 18. first triple valves, 19. condensation fans, 20. second valve controls, 21.
3rd globe valve, the outer coil pipe of 22. press, 23. second level sensors, 24. water-circulating pumps, 25. flowmeters, 26. compressors,
27. air bleeding valve, 28. the 4th globe valves, 29. second triple valves, 30. freezing drip trays, 31. freezing electric heating tubes, 32. refrigerate back
Air port.
【Embodiment】
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail, but the invention is not restricted to the implementation
Example.Thoroughly understand in order that the public has to the present invention, concrete details is described in detail in present invention below preferably applies example.
As shown in figure 1, a kind of wind cooling refrigerator subsidiary defrosting device of the present invention, mainly includes press outer coil pipe 22, air bleeding valve
27th, the second triple valve 29, tie point hot-water line 3, the second branch road hot-water line 6, the first triple valve 18, the 3rd globe valve 21, cold
Hide the parts such as drip tray 7, freezing drip tray 30, defrosting water water storage box 10, the first globe valve 16 and spray thrower 11.The present invention is pressing
The surface of shell of contracting machine 26 reclaims tightly around water coil and the heat auxiliary evaporator of transfer compression machine 26 defrosts, pass through defrosting water water storage
Case 10 collects defrosting water, and controls the periodic cleaning wire tube condenser 13 of spray thrower 11.It is asynchronous that the device can effectively weaken defrosting
Property, shorten the time, reduce power, and compressor is maintained the operation of high energy efficiency point, reduce condenser surface deposition dust and bring
Thermal resistance.Specifically,
The outer coil pipe 22 of press, tightly around on the surface of compressor 26, for cooling to compressor 26, and absorb when storing its operation
Caused heat；
Air bleeding valve 27, for maintaining the pressure in closure water system, ensure system safety；
Tie point hot-water line 3, the top row pipe surface of refrigerating evaporator 2 is close to, for aiding in freezing electric heating tube 31 to remove
Frost；
Second branch road hot-water line 6, the top row pipe surface of refrigeration evaporator 5 is close to, for aiding in the return air of refrigeration evaporator 5
Frost；
First triple valve 18, removed for switching control to the heat supply of 3 or second branch road hot-water line of tie point hot-water line 6 auxiliary
Frost；
Second triple valve 29, for combining the first triple valve 18 switching water branch road；
First level sensor 8, for detecting the water level in defrosting water water storage box 10, and the first globe valve 16 is controlled to spray
Leaching device 11 supplies water；
First globe valve 16, the signal of the first level sensor 8 is received, supplied water for controlling to spray thrower 11；
Second globe valve 17, the moisturizing control in water storage stage during for first powering on；
Defrosting water water storage box 10, for collecting from refrigeration drip tray 7 and freezing the defrosting water of drip tray 30；
Spray thrower 11, carry out cleaning for the water of defrosting water water storage box 10 uniformly to be sprayed to shine on the surface of wire tube condenser 13 and remove
Dirt and cooling；
Wherein, the first and second branch road hot-water line 3 and 6 is close to freezing, the overhead coil table of refrigeration evaporator 2 and 5 respectively
Face, for the outer coil pipe 22 of the press tightly around on the surface of compressor 26, the spray thrower 11 is arranged in the top of wire tube condenser 13, its bottom
Portion is regularly provided with nozzle 12, and the both ends of air bleeding valve 27 are connected with the triple valve 29 of coil pipe outside press 22 and second respectively, institute
State tie point hot-water line 3, the both ends of the second branch road hot-water line 6 are respectively connected with the second triple valve 29 and the first triple valve 18,
3rd globe valve 21 is connected with coil pipe 22 outside the first triple valve 18 and press respectively, the top of defrosting water water storage box 10 with
Refrigeration drip tray 7 and freezing drip tray 30 are connected, and bottom is connected with the first globe valve 16 and the second globe valve 17, is come for collecting
From refrigeration drip tray 7 and the defrosting water of freezing drip tray 30；The other end of first globe valve 16 is connected with spray thrower 11.
First triple valve 18, the 3rd globe valve 21, press outer coil pipe 22, water-circulating pump 24, flowmeter 25, the 4th ball
Shape valve 28, the second triple valve 29 and the composition of tie point hot-water line 3 first closure water branch road, first triple valve the 18, the 3rd
Globe valve 21, press outer coil pipe 22, water-circulating pump 24, flowmeter 25, the 4th globe valve 28, the second triple valve 29 and the second branch road
The composition of hot-water line 6 second closure water branch road, the switching of the first closure water branch road and the second closure water branch road pass through the first triple valve
18 and second triple valve 29 jointly control；The freezing drip tray 30, refrigeration drip tray 7, defrosting water water storage box 10, first are spherical
Valve 16, spray thrower 11 and nozzle 12 form opened water branch road, for cleaning showers wire tube condenser 13；The defrosting water water storage box
10th, the closed-loop control system of the first level sensor 8, the first globe valve 16 and the first valve control 9 composition spray thrower；It is described to melt
White water water storage box 10, the second level sensor 23, the second globe valve 17 and the second valve control 20 composition close the benefit of water branch road
Water control system.
The freezing electric heating tube 31 has a two stage power pattern, is adjusted to during 3 assisting defrosting of tie point hot-water line low
Power mode；First level sensor 8 is by controlling the first valve control 9 whether to control the first globe valve 16 to spray thrower
11 supply water；The freezing defrosting terminates temperature-sensitive bag 1 and refrigeration defrosting terminate temperature-sensitive bag 4 can the globe valve 21 of independent control the 3rd,
4th globe valve 28 and water-circulating pump 24.Also include：After the water supply cleaning showers wire tube condenser 13 of spray thrower 11, condensating wind
Machine 19 starts than compressor delay 1min.
Such as Fig. 2, " centre comb two is close, the thin two in centre on the top of wire tube condenser 13 for the nozzle 12 of the spray thrower 11
Slightly " arrange.It can realize and cool in the segment set of wire tube condenser two high-temperature region, ensure that wire tube condenser various pieces temperature
Difference minimizes, prevent from cooling it is uneven caused by instrument damage.
Method of work and principle that point three phases illustrate the present invention are described below in detail：
1. the water storage stage after first powering on：
When first powering on, the first globe valve 16 is closed, and the second globe valve 17 is opened, and the first triple valve 18 switches to and defrosting
Water water storage box 10 is connected, and the 3rd globe valve 21 is closed, and the 4th globe valve 28 is closed, and water-circulating pump 24 is not started shooting.In compressor 26
After startup, refrigeration system starts normal work：During refrigeration for refrigerator, return air in casing after the evaporator cooling of low temperature,
Temperature reduces, and the vapor in return air can be condensed into water droplet between evaporator heat exchange pipe surface and fin, and then condense into frost, and
And continue with kind of refrigeration cycle, frost layer can be more long-pending thicker.
Air-cooled Two-way Cycle refrigerator first gives the feed flow of refrigeration evaporator 5, when refrigeration temperature-sensitive bag temperature is reduced to setting value, switching
To the feed flow of refrigerating evaporator 2.During operation is freezed, refrigeration blower fan is not shut down, and is returned by the return air for refrigerating return air inlet 32
Weathering frost, the 3rd globe valve 21 and the 4th globe valve 28 are opened simultaneously, and the defrosting water of refrigeration evaporator 5 drops onto refrigeration drip tray
On 7, defrosting water water storage box 10 is flowed under the influence of gravity into, so it is spherical by the second globe valve 17, the first triple valve the 18, the 3rd
Valve 21 flows into the outer coil pipe 22 of press, into press outside defrosting water in coil pipe 22 start to absorb and store the heat of compressor 26, when
Refrigeration defrosting terminates the temperature of temperature-sensitive bag 4 and rises to higher limit, and return air defrost terminates, and the 3rd globe valve 21 and the 4th globe valve 28 are simultaneously
Close.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, pressure
Contracting machine 26 is started shooting again, is given the cooling of refrigeration evaporator 5, is so gone round and begun again.
When the accumulated running time of compressor 26 reaching setting value, compressor 26 is shut down, the 3rd globe valve 21 and the 4th ball
Shape valve 28 is opened simultaneously, and freezing electric heating tube 31 opens high power operation pattern, and refrigerating evaporator 2 starts electric heated defrosting, by
To the heating of thermal updrafts, the frost on refrigerating evaporator 2 starts " from the bottom to top " and gradually melted, and defrosting water falls on the cold of lower section
Freeze drip tray 30, into defrosting water water storage box 10, then flow into the outer coil pipe 22 of press, the temperature liter of temperature-sensitive bag 1 is terminated when freezing defrosts
To setting value, freezing electric heating tube 31 is stopped, and the 3rd globe valve 21 and the 4th globe valve 28 simultaneously close off.Wait to arrive again at
During 26 accumulated running time of compressor, refrigerating evaporator 2 starts again at defrosting, so repeatedly, until outside press in coil pipe 22
Water level rises to the position of the second level sensor 23, and the second valve control of the second level sensor 23 control 20 forever closes second
Globe valve 17.So far, the water circuit system moisturizing of assisting defrosting is completed, and the second globe valve 17 is no longer opened.
2. the stable operation stage after the completion of water storage：
The water circuit system moisturizing of assisting defrosting is completed, and the second globe valve 17 is closed, and the first globe valve 16 still remains turned-off.It
Afterwards when refrigeration system stable operation, the defrosting water in coil pipe 22 outside press is distributed in, absorbs the caloric value of the housing of compressor 26,
Radiated simultaneously to compressor 26.When water in the outer coil pipe 22 of press is heated, pipeline inner pressure can raise, and can pass through exhaust
Valve 27 ensures closure water system pressure stability in safety value.
When switching to 2 feed flow of refrigerating evaporator, refrigeration blower fan is not shut down, and refrigeration evaporator 5 starts return air defrost.This
When, the first triple valve 18 and the second triple valve 29 are switched to and are connected with the second branch road hot-water line 6, i.e., the second closure water branch road connects
Logical, the 3rd globe valve 21 and the 4th globe valve 28 are opened simultaneously, and water-circulating pump 24 starts.The defrost heated by the housing of compressor 26
Water closes water branch road internal circulation flow under the driving of water-circulating pump 24, second, cold by being heated during the second branch road hot-water line 6
The frost layer of the overhead coil of evaporator 5 is hidden, aids in return air defrost, during which defrosting water drops onto refrigeration drip tray 7, and then flows into 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 greatly shorten, and work as refrigeration
When the temperature of defrosting termination temperature-sensitive bag 4 rises to setting value, water-circulating pump 24 is shut down, and the 3rd globe valve 21 and the 4th globe valve 28 are simultaneously
Close.
When refrigerating evaporator 2 reaches defrosting time, freezing electric heating tube 31 opens low-power shelves and is electrically heated defrosting,
First triple valve 18 and the second triple valve 29 are switched to and are connected with tie point hot-water line 3, i.e., the first closure water branch road connection,
3rd globe valve 21 and the 4th globe valve 28 are opened simultaneously, and water-circulating pump 24 starts.Similarly, in the driving of water-circulating pump 24
Under, the hot water in the outer coil pipe 22 of press flows through the auxiliary freezing electric heating tube 31 of tie point hot-water line 3 and defrosted, and ensures freezing and evaporating
Device synchronously starts to defrost about 2.Defrosting water drops onto freezing drip tray 30, then flows into defrosting water water storage box 10 and store temporarily
Come.Defrosting to be frozen terminates temperature-sensitive bag 1 and rises to setting value, and electrical heating and auxiliary heating defrosting stop, and water-circulating pump 24 is shut down,
3rd globe valve 21 and the 4th globe valve 28 simultaneously close off.
3. the cleaning showers condenser stage：
Such tie point hot-water line 3 aids in the freezing assisting defrosting of electric heating tube 31, the auxiliary refrigeration of the second branch road hot-water line 6
The continuous progress of return air defrost, when the water level of defrosting water water storage box 10 reaches the first 8 position of level sensor, compressor
26 are shut down, and condensation fan 19 stalls, and the first level sensor 8 is melted by controlling the first valve control 9 to open the first globe valve 16
The defrosting water saved bit by bit in white water water storage box 10 is uniformly sprayed by the nozzle 12 of spray thrower 11 and shone onto wire tube condenser 13.What spray was shone
Water droplet flows from top to bottom, and takes away the dust of the surface of wire tube condenser 13 deposition, and a part of water droplet is in the higher fiber tube of temperature
The surface evaporation of condenser 13, unevaporated water droplet is low to be arrived in drip tray 14, is heated when starting shooting again by press blast pipe 15
Evaporation.
After the defrosting water emptying that defrosting water water storage box 10 is saved bit by bit, the first globe valve 16 is closed.As refrigeration system continues
Circular flow, until when the water level of defrosting water water storage box 10 arrives again at the position of the first level sensor 8, the first valve control
9 are again turned on the first globe valve valve 16, and cleaning dedusting, cooling are carried out to wire tube condenser 13, is so gone round and begun again.
Compared with prior art, the device has recovery compressor heat assisting defrosting and collects defrosting water cleaning condenser
Etc. function, effectively weaken asynchronous, the shortening defrosting time that defrosts, reduce defrosting power.
More than, only presently preferred embodiments of the present invention, the practical range of the present invention is not limited only to, it is all according to patent of the present invention
The equivalence changes and modification that the content of scope is done, it all should be the technology category of the present invention.
Claims (10)
- A kind of 1. wind cooling refrigerator subsidiary defrosting device, it is characterised in that including：It is arranged on refrigerating evaporator (2) overhead coil Tie point hot-water line (3), the second branch road hot-water line (6) being arranged on refrigeration evaporator (5) overhead coil and tightly around compressing The outer coil pipe (22) of press on machine (26), tie point hot-water line (3) and the second branch road hot-water line (6) pass through two threeways respectively Valve connects with the outer coil pipe (22) of press and forms two assisting defrosting water loops；Pass through setting on the outlet pipe of the outer coil pipe (22) of press Water-circulating pump (24) is followed the water in the outer coil pipe (22) of tie point hot-water line (3), the second branch road hot-water line (6) and press Ring, the refrigeration drip tray (7) and freezing drip tray (30) for collecting defrosting water are connected with defrosting water water storage box (10), and defrosting water stores The water supplement port of water tank (10) is connected to give assisting defrosting water loop moisturizing with the outer coil pipe (22) of press.
- A kind of 2. wind cooling refrigerator subsidiary defrosting device according to claim 1, it is characterised in that described defrosting water water storage The second globe valve (17) is provided with the water supplement port of case (10), the second level sensor is provided with the entrance of the outer coil pipe (22) of press Device (23), the second globe valve (17) and the second level sensor (23) are connected with the second valve control (20), the control of the second valve Device (20) receives the second level sensor (23) feedback signal and controls the second globe valve (17) to give assisting defrosting water loop moisturizing.
- A kind of 3. wind cooling refrigerator subsidiary defrosting device according to claim 1, it is characterised in that described defrosting water water storage The first globe valve (16) is provided with the inwall of case (10), the first level sensor is set on the dewatering outlet of defrosting water water storage box (10) Device (8), the first globe valve (16) and the first level sensor (8) are connected with the first valve control (9), the first valve control (9) moisture storage capacity in the feedback signal control defrosting water water storage box (10) of the first level sensor (8) is received.
- A kind of 4. wind cooling refrigerator subsidiary defrosting device according to claim 3, it is characterised in that described defrosting water water storage The pipeline lower end of the dewatering outlet of case (10) is provided with for the water in defrosting water water storage box (10) to be uniformly sprayed at fiber tube condensation Device (13) surface clean the spray thrower (11) of dedusting and cooling, 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 pressed The bottom of spray thrower (11) is arranged according to the mode of " the thin two in centre is close, middle thin two is thick ".
- A kind of 6. wind cooling refrigerator subsidiary defrosting device according to claim 1, it is characterised in that the outer coil pipe of described press (22) the 3rd globe valve (21) is provided with entrance pipe, flowmeter is provided with the export pipeline of the outer coil pipe (22) of press (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 characterised in that be arranged on refrigerating evaporator (2) the freezing defrosting on terminates temperature-sensitive bag (1) and the refrigeration being arranged on refrigeration evaporator (5) defrosting terminates temperature-sensitive bag (4) It is connected with the 3rd globe valve (21), the 4th globe valve (28) and water-circulating pump (24), is independently controlled assisting defrosting water loop.
- A kind of 8. 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 into refrigeration drip tray (7) and cold Freeze on drip tray (30), defrosting water flows into defrosting water water storage box (10) under gravity, and then flows into tightly around in compressor (26) the outer coil pipe (22) of press on, when the second level sensor (23) water level outside press on coil pipe (22) reaches setting value When, the second globe valve (17) of the second valve control (20) control defrosting water water storage box (10) stops moisturizing, and assisting defrosting water returns Road moisturizing first is completed；The defrosting water being distributed in the outer coil pipe (22) of press, absorbs the caloric value of compressor (26) housing, while give compressor (26) radiate, the water in the outer coil pipe (22) of press is heated；By the defrosting water of compressor (26) housing heating in water-circulating pump (24) under driving, by heating the frost layer of refrigeration evaporator (5) overhead coil during the second branch road hot-water line (6), return air is aided in Frost；Flow through tie point hot-water line (3) auxiliary freezing electric heating tube (31) defrosting；During assisting defrosting, defrost water droplet flows into defrosting water water storage box from refrigeration drip tray (7) and freezing drip tray (30) respectively (10) stored temporarily in；When the second level sensor (23) water level is less than setting value in assisting defrosting water loop, defrosting water stores Interim water storage in water tank (10) carries out moisturizing again；When the first level sensor (8) water level in defrosting water water storage box (10) exceedes setting value, the first globe valve (16) is opened Draining.
- A kind of 9. wind cooling refrigerator assisting defrosting method according to claim 8, it is characterised in that described freezing electrical heating Pipe (31) has a two stage power pattern, is adjusted to low-power mode during tie point hot-water line (3) assisting defrosting.
- 10. a kind of wind cooling refrigerator assisting defrosting method according to claim 8, it is characterised in that described first is spherical The water of valve (16) discharge is uniformly sprayed at wire tube condenser (13) surface by spray thrower (11) and carries out cleaning dedusting and cooling, together When compressor (26) shut down, condensation fan (19) stalling is air-cooled after spray thrower (11) water supply cleaning showers wire tube condenser (13) Condensation fan (19) in 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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| 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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| CN105716355B true CN105716355B (en) | 2018-01-19 |
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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 |
| CN108266863B (en) * | 2017-12-29 | 2020-08-28 | 广东高而美制冷设备有限公司 | Defrosting waste heat absorption and reuse control method |
| 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 |
| 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 |
| CN111536762B (en) * | 2020-05-19 | 2023-06-23 | 烟台大学 | Novel freeze dryer for recycling defrosting water by utilizing residual heat and operation method thereof |
| CN112033071B (en) * | 2020-08-17 | 2022-03-18 | 珠海格力电器股份有限公司 | Refrigerator and defrosting method thereof |
| CN111964519A (en) * | 2020-08-24 | 2020-11-20 | 广东乘心电器实业有限公司 | Display cabinet and self-cleaning method thereof |
| 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 |
| 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 |
| CN114636224B (en) * | 2022-03-31 | 2024-03-22 | 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 |
| BR202022020179Y1 (en) * | 2022-10-05 | 2023-09-26 | Gav Representação Comercial Ltda | CONSTRUCTIVE ARRANGEMENT APPLIED TO ALUMINUM WIRE EVAPORATOR AND CONDENSER |
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| JPH02192572A (en) * | 1989-01-20 | 1990-07-30 | Matsushita Refrig Co Ltd | Defrosting control of cold heat accumulating type cold storage case equipped with refrigerating machine |
| JP5774868B2 (en) * | 2011-02-21 | 2015-09-09 | 株式会社不二工機 | Cooling system |
| CN202853236U (en) * | 2012-11-14 | 2013-04-03 | 合肥晶弘电器有限公司 | Air cooling system for automatic defrosting by condenser heat |
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| CN103591751B (en) * | 2013-10-30 | 2016-02-24 | 西安交通大学 | A kind of defrost system of wind cooling refrigerator and defrosting control method thereof |
| CN103868309B (en) * | 2014-03-19 | 2016-04-13 | 天津大学 | The device utilizing freezer outside air auxiliary electrical heater to defrost and the method for operation thereof |
| CN203928556U (en) * | 2014-05-13 | 2014-11-05 | 上海安悦节能技术有限公司 | Ammonia compressor recuperation of heat defrosting system |
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| CN204165313U (en) * | 2014-09-02 | 2015-02-18 | 澳柯玛股份有限公司 | A kind of refrigerator with defrosting function |
| CN104613688B (en) * | 2015-01-23 | 2017-01-04 | 西安交通大学 | The hot gas defrosting system of a kind of refrigerator and control method thereof |
| CN204806792U (en) * | 2015-06-23 | 2015-11-25 | 宁夏万仕隆冷冻科技股份有限公司 | Freezer water -washed frost structure |
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