CN102563992A - Defrosting method of refrigerating device - Google Patents
Defrosting method of refrigerating device Download PDFInfo
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- CN102563992A CN102563992A CN2010106035171A CN201010603517A CN102563992A CN 102563992 A CN102563992 A CN 102563992A CN 2010106035171 A CN2010106035171 A CN 2010106035171A CN 201010603517 A CN201010603517 A CN 201010603517A CN 102563992 A CN102563992 A CN 102563992A
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- evaporimeter
- evaporator
- alternating current
- frequency alternating
- power supply
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Abstract
The invention relates to a defrosting device of a refrigerating device, in particular to a defrosting method for directly heating an evaporator by using high-frequency alternating current. The defrosting method is mainly characterized in that the inlet end and the outlet end of the evaporator are set to be a power supply introducing joint, the other one power supply introducing joint is arranged at the middle of a pipeline of the evaporator, fins can be arranged on an inlet evaporator pipeline and an outlet evaporator pipeline which are parallel and are arranged independently without mutually contacting, a power panel provides the high-frequency alternating current to a connecting wire, the high-frequency alternating current flows through the conductive evaporator through two power supply introducing joints, and frost on the evaporator is removed by using heat generated by the high-frequency alternating current. The defrosting method of the refrigerating device, provided by the invention, has the advantages of simpleness, little energy waste, small temperature fluctuation and the like.
Description
Technical field
The present invention relates to a kind of Defrost method of refrigeration plant, particularly relate to a kind of Defrost method that utilizes the direct heating fumigators of high-frequency alternating current.
Background technology
In refrigeration plant, have one type to be mechanical energy to be provided now by motor, through compressor to the refrigeration system work done; Refrigeration system is utilized lower boiling cold-producing medium; During evaporation, the principle of absorption heat of vaporization is processed, for example frost-free refrigerator-freezer, air-conditioner, Teat pump boiler.But the evaporimeter frosting problem in evaporation work affects the normal use of equipment always, wastes energy.To this, people work out a lot of methods and solve the evaporimeter frosting problem, and wherein main Defrost mode has: shut down defrost, hot-gas bypass defrosting, reverse cycle defrosting, electrical heating defrosting etc.More than several kinds of Defrost modes, drawback is respectively arranged, as follows: shut down defrost, the frequent lost of life of compressor start and stop, heating (refrigeration) effect is influenced, temperature fluctuation is big, is applied to the insensitive occasion of temperature fluctuation more; The hot-gas bypass defrosting, big energy-consuming, fragile compressor, temperature fluctuation is bigger, is applied to produce in the chilled water system more; Reverse cycle defrosting, system complex, temperature fluctuation is big, mainly is applicable to heat pump air conditioner; The electrical heating defrosting, big energy-consuming, temperature fluctuation is big.In sum, also do not have a kind of method simple at present, energy waste is few, the Defrost method that temperature fluctuation is little, the defrosting demand of the refrigeration plant of mentioning more than satisfying.
Summary of the invention
To above deficiency, the purpose of this invention is to provide a kind of Defrost method of refrigeration plant, to mechanical energy being provided by motor; To the refrigeration system work done, refrigeration system is utilized lower boiling cold-producing medium, during evaporation through compressor; One type of refrigeration plant that the principle of absorption heat of vaporization is processed; Can implementation method simple, energy waste be few, the solution evaporator defrost problem that temperature fluctuation is little.
The objective of the invention is to realize like this; Mainly be that the import and the port of export of evaporimeter are arranged to a power supply introducing contact; Another power supply is introduced the middle part that contact is arranged on evaporator pipeline, on the parallel one-in-and-one-out evaporator pipeline fin can be set, and the fin of parallel with parallel evaporator pipeline should independently be provided with; Do not contact mutually; Provide high-frequency alternating current to connecting line by power panel, let high-frequency alternating current introduce the evaporimeter that contact flows through conduction through two power supplys, the heat that utilizes high-frequency alternating current to produce is removed the frost above the evaporimeter.
Defrost process is: when evaporator surface accumulates certain thickness frost because of refrigeration work, stop compressor and rotate, also stopped the refrigeration work of evaporimeter simultaneously.Through power panel and connecting line, to the logical high-frequency alternating current of evaporimeter, the higher alternating current of frequency can produce kelvin effect on evaporator pipeline, and electric current can be tending towards the evaporimeter conductive surface and flow, and produces heat, removes to melt the frost on surface.Defrosting finishes, and stops to supply high-frequency alternating current to evaporator pipeline, and evaporator pipeline stops heating, and next step can start compressor, carries out the refrigeration work of evaporimeter, accomplishes a defrost process.
In order to reduce the electric energy loss of connecting line; To shorten the length of connecting line as far as possible; In order to protect power panel and not tie up near the space evaporimeter, power panel can be separated simultaneously, soon power supply electronic circuit and output transformer separate; Transformer is arranged near the evaporimeter, with arrangement for electronic circuitry at other position.
Power panel can be transformed into the civil power of high voltage suitable low pressure high-frequency alternating current, supplies with the evaporimeter heating and uses, and in order to reach high conversion rate and little power volume, can select high frequency switch power.Let high frequency electric flow through the evaporator pipeline of conduction, can produce kelvin effect, flowing in the surface that electric current can tend to evaporator pipeline, just in time helps producing heat abstraction and fall frost.
Connecting line can be used multiply copper enamel-covered wire in order to reduce the collection skin loss of high frequency electric.
The power supply that is arranged on the middle part is introduced the middle that contact can be arranged on evaporator pipeline, also can be according to what of whole evaporator surface frosting, and promptly the frosting uniformity coefficient is selected to be arranged on the middle part and is departed from the position that ask the center.
The Defrost method of a kind of refrigeration plant of the present invention, its advantage have that method is simple, energy waste is few, temperature fluctuation is little etc.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Accompanying drawing is a schematic diagram of the present invention.
1. power panels among the figure, 2. evaporimeter, 3. fin, 4. connecting line, 5. power supply introducing contact.
The specific embodiment
Shown in accompanying drawing; Mainly be that the import and the port of export of evaporimeter 2 are arranged to a power supply introducing contact 5; Another power supply is introduced the middle part that contact 5 is arranged on evaporimeter 2 pipelines, on parallel one-in-and-one-out evaporimeter 2 pipelines fin 3 can be set, and the fin 3 of parallel with parallel evaporimeter 2 pipelines should independently be provided with; Do not contact mutually; Provide high-frequency alternating current to connecting line 4 by power panel 1, let high-frequency alternating current introduce the evaporimeter 2 that contact 5 flows through conduction through two power supplys, the heat that utilizes high-frequency alternating current to produce is removed the frost above the evaporimeter 2.
Defrost process is: when evaporimeter 2 surfaces accumulate certain thickness frost because of refrigeration work, stop compressor and rotate, also stopped the refrigeration work of evaporimeter 2 simultaneously.Through power panel 1 and connecting line 4, to evaporimeter 2 logical high-frequency alternating currents, the higher alternating current of frequency can produce kelvin effect on evaporimeter 2 pipelines, and electric current can be tending towards evaporimeter 2 conductive surfaces and flow, and produces heat, removes to melt the frost on surface.Defrosting finishes, and stops to supply high-frequency alternating current to evaporimeter 2 pipelines, and evaporimeter 2 pipelines stop heating, and next step can start compressor, carries out the refrigeration work of evaporimeter 2, accomplishes a defrost process.
In order to reduce the electric energy loss of connecting line 4; To shorten the length of connecting line 4 as far as possible; In order to protect power panel 1 and not tie up near evaporimeter 2 spaces, power panel 1 can be separated simultaneously, be about to power supply electronic circuit and output transformer and separate; Transformer is arranged near the evaporimeter 2, with arrangement for electronic circuitry at other position.
Power panel 1 can be transformed into the civil power of high voltage suitable low pressure high-frequency alternating current, supplies with evaporimeter 2 heatings and uses, and in order to reach high conversion rate and little power volume, can select high frequency switch power.Let high frequency electric flow through evaporimeter 2 pipelines of conduction, can produce kelvin effect, flowing in the surface that electric current can tend to evaporimeter 2 pipelines, just in time helps producing heat abstraction and fall frost.
Connecting line 4 can be used multiply copper enamel-covered wire in order to reduce the collection skin loss of high frequency electric.
The power supply that is arranged on the middle part is introduced the middle that contact 5 can be arranged on evaporimeter 2 pipelines, also can be according to what of whole evaporimeter 2 surperficial frostings, and promptly the frosting uniformity coefficient selects to be arranged on the position that the middle is departed from the middle part.
Like the direction of arrow among the figure, cold-producing medium is from 2 one entering of evaporimeter, and flow out the other end.Omitted the relevant conventional components of other refrigeration such as compressor, condenser, capillary, drier among the figure.
Claims (2)
1. the Defrost method of a refrigeration plant; Mainly be that the import and the port of export of evaporimeter are arranged to a power supply introducing contact; Another power supply is introduced the middle part that contact is arranged on evaporator pipeline, on the parallel one-in-and-one-out evaporator pipeline fin can be set, and the fin of parallel with parallel evaporator pipeline should independently be provided with; Do not contact mutually; Provide high-frequency alternating current to connecting line by power panel, let high-frequency alternating current introduce the evaporimeter that contact flows through conduction through two power supplys, the heat that utilizes high-frequency alternating current to produce is removed the frost above the evaporimeter.
2. the Defrost method of a kind of refrigeration plant according to claim 1 is characterized in that: power panel can be separated, transformer is arranged near the evaporimeter, with arrangement for electronic circuitry at other position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106035171A CN102563992A (en) | 2010-12-17 | 2010-12-17 | Defrosting method of refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106035171A CN102563992A (en) | 2010-12-17 | 2010-12-17 | Defrosting method of refrigerating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102563992A true CN102563992A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106035171A Pending CN102563992A (en) | 2010-12-17 | 2010-12-17 | Defrosting method of refrigerating device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102563992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797570A (en) * | 2020-12-30 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Defrosting control method, defrosting device and multi-connected air conditioning system |
-
2010
- 2010-12-17 CN CN2010106035171A patent/CN102563992A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797570A (en) * | 2020-12-30 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Defrosting control method, defrosting device and multi-connected air conditioning system |
| CN112797570B (en) * | 2020-12-30 | 2022-08-23 | 宁波奥克斯电气股份有限公司 | Defrosting control method, defrosting device and multi-connected air conditioning system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |