CN1858523A - Energy storaging defrosting refrigerator - Google Patents
Energy storaging defrosting refrigerator Download PDFInfo
- Publication number
- CN1858523A CN1858523A CN 200610043869 CN200610043869A CN1858523A CN 1858523 A CN1858523 A CN 1858523A CN 200610043869 CN200610043869 CN 200610043869 CN 200610043869 A CN200610043869 A CN 200610043869A CN 1858523 A CN1858523 A CN 1858523A
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- condenser
- heater
- heat
- evaporimeter
- heat exchanger
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Abstract
The energy storing defrosting refrigerator can absorb and store waste heat the refrigerant condenser releases and transfer the heat to the surface of the frosted evaporator to defrost. The energy storing defrosting refrigerator includes a compressor, a condenser, an evaporator and a connected throttle mechanism, and features the heat exchanger set on the evaporator and the heater with built-in medium in the condenser pipeline and with liquid inlet and outlet connected through pipeline to the water pump and the heat exchanger to form closed loop.
Description
Technical field
The present invention relates to a kind of refrigeration plant, relate in particular to a kind of refrigeration machine.
Background technology
Refrigerator of the prior art can influence circulation of air in the fin and the tube surface frosting of evaporimeter after using a period of time, makes the heat conductivility variation of evaporimeter, causes system performance degradation, thereby reduces refrigeration, therefore defrost in time.General way is to be provided with electric heater in evaporimeter, and energising heats during defrost, is melted by the heat of its generation to condense in evaporator fin and the lip-deep frost of pipeline.But there is following shortcoming in technique scheme, the one, and it is not high that electric heater heats the defrost efficiency with electric energy, because be converted into heat energy by electric energy, energy conversion ratio is less than or equal to 80%; The 2nd, the electrical heating defrost time is longer, as shortening the defrost time, then will improve the power of electric heater greatly, also can increase the volume of heater simultaneously.Refrigeration machine also can install four-way change-over valve additional, when needing defrost by condenser to the evaporator surface heat extraction, heated up with defrost in its surface.
Summary of the invention
The present invention is directed to deficiency of the prior art and proposed a kind of used heat that can the absorption refrigerating machine condenser discharges and stored, thereby the evaporator surface that again heat is conducted to frosting is finished the energy storaging defrosting refrigerator of defrost task.
This energy storaging defrosting refrigerator is realized by following technical measures: it comprises compressor, condenser, evaporimeter and the throttle mechanism that is attached thereto, it is characterized in that evaporimeter is provided with heat exchanger, the condenser pipe that leads to condenser is provided with the heater of built-in working media, and the liquid inlet and outlet of heater is by independent pipeline and water pump and heat exchanger formation closed loop.
The beneficial effect of this programme can be learnt according to the narration to such scheme, gather the waste heat that refrigerator condenser discharges owing to adopt heater, and in heater, stored by working media, by forced convertion the working media of middle temperature (more than or equal to 60 degree) is delivered to heat exchanger when needing defrost and make its thawing rapidly with the frosting on heating fumigators surface, not only replaced electric heater, the used heat that will be discharged into originally again in the atmosphere is collected to return to be used, a large amount of energy have been saved, can reduce of the pollution of condenser waste heat again to environment in summer, but in the time of compressor starts work, because the condensation heat of the condenser that heater absorbs, help the refrigeration of evaporimeter again.Therefore invention has compared with prior art realized the technological progress purpose, has also obtained positive effect simultaneously.
The concrete characteristics of this programme also have, and described heat exchanger is arranged on the pipeline and fin of evaporimeter, conduct heat simultaneously to evaporimeter by the contact and the heat radiation of metallic conductor, accelerate defrost speed.
Working media in the described heater is an ethanol, prevents under the refrigeration work state, and the working media in the heater is freezing to freeze, and influence circulates.
The described copper pipe that is positioned at the condenser pipe of heater inside for one or more coiled coil; Described heater is and the common tube-in-tube condenser of forming of condenser pipe that all genus enlarges heat exchange area, makes and obtains more heat in the working media unit interval in the heater.
Description of drawings
The present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is an energy-storing defrosting apparatus structure schematic diagram;
Among the figure, 1, compressor, 2, four-way change-over valve, 3, coil pipe, 4, evaporimeter, 5, the expansion throttling valve, 6, condenser, 7, water pump, 8, heater, 9, evaporator fan, 10, condenser fan, 11, heat exchanger, 12, evaporator pipeline, 13, power supply, 14, heat supplying pipeline, 15, condenser pipe.
The specific embodiment
As shown in Figure 1, the closed circulation system of the applied commercial display cases of the present invention, by compressor 1, condenser 6, expansion throttling valve 5, evaporimeter 4 compositions such as grade, working medium circulates wherein.When the device operation, the steam that compressor 1 sucks in the flash-pot 4, become high temperature and high pressure gas after compression, then enter condenser 6 release heat and be condensed into the liquid of high pressure, then through throttle expansion valve 5, major part becomes low pressure liquid, sub-fraction becomes low-pressure steam, and both enter evaporimeter 4 in the lump, liquid assimilating heat and vaporization in evaporimeter 4, then absorbed by compressor 1 again, thus a circulation of realization working medium.So move in circles, refrigeration system just can realize refrigeration.Its annexation is: compressor 1 and the four-way change-over valve 2 that is attached thereto, and condenser 6 that is connected with four-way change-over valve 2 and evaporimeter 4, on the pipeline between condenser 6 and the evaporimeter 4, throttle mechanism is set, adopts manual throttle valve, capillary or expansion throttling valve 5 usually.Described energy storaging defrosting refrigerator also is provided with the heat exchanger 11 that pipeline and fin with evaporimeter 4 are set together, the condenser pipe 15 that leads to condenser 6 is provided with the heater 8 of built-in working media, and the liquid inlet and outlet of heater 8 forms the closed loop by heat supplying pipeline 14 and heat exchanger 11.Gather the waste heat that refrigerator condenser 6 discharges owing to adopt heater 8, and in heater 8, stored by working media, on heater 8 and heat supplying pipeline 14 that heat exchanger 11 is communicated with, water pump 7 is set, water pump drives working media forced circulation in pipeline when needing defrost, makes heat exchanger 11 rapid intensification defrosts.The operating temperature range of heater medium is 80 ℃ to 20 ℃, the medium of each kilogram can provide 51 kilocalories heat energy to be used for defrost like this, and the heat-retaining capacity Q of medium sets Q=P/12 according to the refrigeration work consumption size of refrigerator, wherein P is the refrigeration work consumption of refrigerator, and unit is W.The defrost time set is 5 minutes, and the refrigeration work consumption of supposing refrigerator is 7000W, and necessary energy is Q=7000/12 during defrost so, i.e. 583W, and at this moment the dielectric capacity in the heater should be 583/51=11.4kg.
According to above-mentioned analytical calculation, compressor quits work during defrost, starts water circulating pump 7, and the high-temperature medium that stores in the heater 8 is under water circulating pump 7 effects, and delivering to evaporimeter by pipeline, to carry out the forced circulation heat radiation be frost on the fusible evaporimeter.
The present invention has replaced the mode of electric heater heating, and the used heat that will be discharged into originally again in the atmosphere is collected to return to be used, and has saved a large amount of energy.
Described working media is the ethanolic solution of 40-55%, is-5 ℃ because the minimum evaporating temperature of commercial display cases is-40 ℃ of working medium reflux temperatures, and during defrost, when compressor quit work, the temperature of evaporimeter was about-10 ℃.Therefore to select concentration for use be 50% ethanol (moisture 50%) to the working media of the heater of this system.Therefore the setting temperature of the ethanol of concentration 50% is-40 ℃, and specific heat is 0.85, and medium solidifies in the time of can avoiding defrost, and ethanol is nontoxic, pollution-free cheap liquid.
The described condenser pipe 15 that is positioned at heater 8 inside is the copper pipe of one or more coiled coil.Described heater is and the common tube-in-tube condenser of forming of condenser pipe; All belong to the expansion heat exchange area, make and obtain more heat in the working media unit interval in the heater.
Claims (5)
1, a kind of energy storaging defrosting refrigerator, comprise compressor, condenser, evaporimeter and the throttle mechanism that is attached thereto, it is characterized in that evaporimeter is provided with heat exchanger, the condenser pipe that leads to condenser is provided with the heater of built-in working media, and the liquid inlet and outlet of heater is by independent pipeline and water pump and heat exchanger formation closed loop.
2, energy storaging defrosting refrigerator according to claim 1 is characterized in that described heat exchanger is arranged on the pipeline and fin of evaporimeter.
3, energy storaging defrosting refrigerator according to claim 1 is characterized in that the working media in the described heater is an ethanol.
4,, it is characterized in that the described copper pipe that is positioned at the condenser pipe of heater inside for one or more coiled coil according to claim 1 or 2 or 3 described energy storaging defrosting refrigerators.
5,, it is characterized in that described heater is and the common tube-in-tube condenser of forming of condenser pipe according to claim 1 or 2 or 3 described energy storaging defrosting refrigerators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610043869 CN1858523A (en) | 2006-04-26 | 2006-04-26 | Energy storaging defrosting refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610043869 CN1858523A (en) | 2006-04-26 | 2006-04-26 | Energy storaging defrosting refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1858523A true CN1858523A (en) | 2006-11-08 |
Family
ID=37297452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610043869 Pending CN1858523A (en) | 2006-04-26 | 2006-04-26 | Energy storaging defrosting refrigerator |
Country Status (1)
| Country | Link |
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| CN (1) | CN1858523A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429974A (en) * | 2011-02-11 | 2013-12-04 | Frigesco有限公司 | Flash defrost system |
| CN103808102A (en) * | 2012-11-14 | 2014-05-21 | 陈辉俊 | Heat-driven defrosting device using natural circulation and defrosting method using same |
| CN105928302A (en) * | 2016-05-27 | 2016-09-07 | 青岛海尔股份有限公司 | Novel refrigerator defrosting system |
| CN106225371A (en) * | 2016-08-05 | 2016-12-14 | 青岛海尔股份有限公司 | Refrigerator compartment and control system thereof |
| CN107525343A (en) * | 2017-08-18 | 2017-12-29 | 青岛海尔股份有限公司 | The control method of refrigerator |
| CN107606844A (en) * | 2017-08-18 | 2018-01-19 | 青岛海尔股份有限公司 | Refrigerator |
-
2006
- 2006-04-26 CN CN 200610043869 patent/CN1858523A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429974A (en) * | 2011-02-11 | 2013-12-04 | Frigesco有限公司 | Flash defrost system |
| CN103808102A (en) * | 2012-11-14 | 2014-05-21 | 陈辉俊 | Heat-driven defrosting device using natural circulation and defrosting method using same |
| CN105928302A (en) * | 2016-05-27 | 2016-09-07 | 青岛海尔股份有限公司 | Novel refrigerator defrosting system |
| CN106225371A (en) * | 2016-08-05 | 2016-12-14 | 青岛海尔股份有限公司 | Refrigerator compartment and control system thereof |
| CN107525343A (en) * | 2017-08-18 | 2017-12-29 | 青岛海尔股份有限公司 | The control method of refrigerator |
| CN107606844A (en) * | 2017-08-18 | 2018-01-19 | 青岛海尔股份有限公司 | Refrigerator |
| CN107606844B (en) * | 2017-08-18 | 2022-01-25 | 海尔智家股份有限公司 | Refrigerator with a door |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |