CN202041034U - Defrosting device for refrigerating equipment - Google Patents
Defrosting device for refrigerating equipment Download PDFInfo
- Publication number
- CN202041034U CN202041034U CN201020649903XU CN201020649903U CN202041034U CN 202041034 U CN202041034 U CN 202041034U CN 201020649903X U CN201020649903X U CN 201020649903XU CN 201020649903 U CN201020649903 U CN 201020649903U CN 202041034 U CN202041034 U CN 202041034U
- Authority
- CN
- China
- Prior art keywords
- evaporimeter
- evaporator
- alternating current
- frequency alternating
- defrosting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Defrosting Systems (AREA)
Abstract
The utility model relates to a defrosting device for a piece of refrigerating equipment, in particular to a defrosting device which enables to directly heat an evaporator through high-frequency alternating current. The defrosting device mainly comprises a power panel, an evaporator, fins, a connecting wire, an electric insulating joint and a choke. The power panel provides high-frequency alternating current, which flows through the conductive evaporator. Frost on the evaporator is removed through heat which is generated by the high-frequency alternating current. Meanwhile, on the path where the current flows out from the evaporator to the external, the electric insulating joint and the choke are arranged, so as to prevent the current from flowing to condensers and compressors and to avoid generation of current through pipelines of condensers and compressors. The fins are independently arranged on the evaporator, and adjacent fins on an evaporator pipeline are not contacted. The defrosting device of the utility model has the advantages of simple structure, little energy waste and small temperature fluctuation.
Description
Technical field
The utility model relates to a kind of defroster of refrigeration plant, particularly relates to a kind of defroster that utilizes the direct heating fumigators of high-frequency alternating current.
Background technology
In refrigeration plant, it is to provide mechanical energy by motor that a class is arranged now, by 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 made, 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 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 simple in structurely at present, energy waste is few, and the defroster that temperature fluctuation is little satisfies the defrosting demand of above-mentioned refrigeration plant.
Summary of the invention
At above deficiency, the purpose of this utility model provides a kind of defroster of refrigeration plant, at providing mechanical energy by motor, to the refrigeration system work done, refrigeration system is utilized lower boiling cold-producing medium, during evaporation by compressor, the class refrigeration plant that the principle of absorption heat of vaporization is made, can implementation structure simple, energy waste be few, the solution evaporator defrost problem that temperature fluctuation is little.
The technical scheme that its technical problem that solves the utility model adopts is: installs mainly by power panel, and evaporimeter, fin, connecting line, the electric insulation joint, flow plug is formed.Mainly be to provide high-frequency alternating current by power panel, and guide on the evaporimeter by connecting line, allow high-frequency alternating current flow through the evaporimeter of conduction, the heat that utilizes high-frequency alternating current to produce is removed the frost above the evaporimeter, lead in the from outside process at evaporimeter simultaneously, electric insulation joint and flow plug are set, the blocking-up electric current flows to condenser and compressor, avoid on condenser and compressor circuit, producing electric current, and the fin on the evaporimeter will independently be provided with, and guarantees that the fin on the adjacent evaporator pipeline does not contact.
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.By power panel and connecting line, to the logical high-frequency alternating current of evaporimeter, select the higher alternating current of frequency can on evaporator pipeline, produce kelvin effect, 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, finishes a defrost process.
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 can reach high conversion rate and little power volume.Allow 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.
Between evaporator pipeline and condenser and compressor circuit the electric insulation joint is set, the electric insulation joint is made by electrically insulating material, guarantees that evaporimeter well is connected with other pipeline, but stops electric current flowing by the metallic conductor pipeline.
Between evaporator pipeline and condenser and compressor circuit flow plug is set, flow plug is exactly to utilize coil reactance and the proportional device that stops alternating current of frequency, selects for use soft magnetic materials to make magnetic core, with the refrigeration metal tubes as coil.Can be arranged on the capillary position in the refrigeration system, because of capillary is thinner, coiling is convenient.
Under the double action of electric insulation joint and flow plug, more effectively and reliably the blocking-up electric current is mobile to condenser and compressor, avoids producing electric current on condenser and compressor.
Usually heat transmission fin to be set on the evaporator pipeline, increase the heat exchange effect of evaporimeter, these heat transmission fins should independently be arranged on the evaporator pipeline, guarantee that the fin on the adjacent evaporator pipeline does not contact, make electric current can flow through whole evaporator pipeline, prevent that electric current from flowing through by fin, and isolation or fixture that electrically insulating material is made can be set, contact between the fin on the device adjacent tubes that avoids evaporating.
That the defroster of a kind of refrigeration plant of the utility model, its advantage have is simple in structure, energy waste is few, temperature fluctuation is little etc.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is primary structure figure of the present utility model.
1. power panels among the figure, 2. evaporimeter, 3. fin, 4. connecting line, 5. electric insulation joint, 6. flow plug.
The specific embodiment
As shown in drawings, mainly by power panel 1, evaporimeter 2, fin 3, connecting line 4, electric insulation joint 5, flow plug 6 is formed.Mainly be to provide high-frequency alternating current by power panel 1, and guide on the evaporimeter 2 by connecting line 4, allow high-frequency alternating current flow through the evaporimeter 2 of conduction, the heat that utilizes high-frequency alternating current to produce is removed the frost above the evaporimeter 2, lead in the from outside process at evaporimeter 2 simultaneously, electric insulation joint 5 and flow plug 6 are set, the blocking-up electric current flows to condenser and compressor, avoid on condenser and compressor circuit, producing electric current, and the fin on the evaporimeter 23 will independently be provided with, and guarantees that the fin 3 on adjacent evaporimeter 2 pipelines does not contact.
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.By power panel 1 and connecting line 4, to evaporimeter 2 logical high-frequency alternating currents, select the higher alternating current of frequency on evaporimeter 2 pipelines, to produce kelvin effect, 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, finishes a defrost process.
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 can reach high conversion rate and little power volume.Allow 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.
Between evaporimeter 2 pipelines and condenser and compressor circuit electric insulation joint 5 is set, electric insulation joint 5 is made by electrically insulating material, guarantees that evaporimeter 2 well is connected with other pipeline, but stops electric current flowing by the metallic conductor pipeline.
Between evaporimeter 2 pipelines and condenser and compressor circuit flow plug 6 is set, flow plug 6 is exactly to utilize coil reactance and the proportional device that stops alternating current of frequency, selects for use soft magnetic materials to make magnetic core, with the refrigeration metal tubes as coil.Can be arranged on the capillary position in the refrigeration system, because of capillary is thinner, coiling is convenient.
Under the double action of electric insulation joint 5 and flow plug 6, more effectively and reliably the blocking-up electric current is mobile to condenser and compressor, avoids producing electric current on condenser and compressor.
Usually heat transmission fin 3 to be set on evaporimeter 2 pipelines, increase the heat exchange effect of evaporimeter 2, these heat transmission fins 3 should independently be arranged on evaporimeter 2 pipelines, guarantee that the fin 3 on adjacent evaporimeter 2 pipelines does not contact, make electric current can flow through whole evaporimeter 2 pipelines, prevent that electric current from flowing through by fin 3.And isolation or fixture that electrically insulating material is made can be set, contact between the fin 3 on device 2 adjacent tubes that avoid evaporating.
As the direction of arrow among the figure, cold-producing medium enters from 2 one in 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 (3)
1. the defroster of a refrigeration plant, by power panel, evaporimeter, fin, connecting line, electric insulation joint, flow plug is formed, provide high-frequency alternating current by power panel, and guide on the evaporimeter, allow high-frequency alternating current flow through the evaporimeter of conduction by connecting line, lead in the from outside process at evaporimeter simultaneously, electric insulation joint and flow plug are set, and the fin on the evaporimeter to be provided with independently, guarantee that the fin on the adjacent evaporator pipeline does not contact.
2. the defroster of a kind of refrigeration plant according to claim 1, it is characterized in that: the electric insulation joint is made by electrically insulating material.
3. the defroster of a kind of refrigeration plant according to claim 1 is characterized in that: flow plug selects for use soft magnetic materials to make magnetic core, with the refrigeration metal tubes as coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020649903XU CN202041034U (en) | 2010-11-30 | 2010-11-30 | Defrosting device for refrigerating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020649903XU CN202041034U (en) | 2010-11-30 | 2010-11-30 | Defrosting device for refrigerating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041034U true CN202041034U (en) | 2011-11-16 |
Family
ID=44968474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020649903XU Expired - Fee Related CN202041034U (en) | 2010-11-30 | 2010-11-30 | Defrosting device for refrigerating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041034U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10473381B2 (en) | 2016-10-05 | 2019-11-12 | Betterfrost Technologies Inc. | High-frequency self-defrosting evaporator coil |
-
2010
- 2010-11-30 CN CN201020649903XU patent/CN202041034U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10473381B2 (en) | 2016-10-05 | 2019-11-12 | Betterfrost Technologies Inc. | High-frequency self-defrosting evaporator coil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202056969U (en) | Air conditioner structure capable of improving low-temperature heating performance | |
| JP2012002388A (en) | Heat exchanger for heat pump and heat pump type hot water supply system thereof | |
| CN202041034U (en) | Defrosting device for refrigerating equipment | |
| CN102435008A (en) | Ice storage domestic air-conditioning refrigerating device | |
| JP2009281673A (en) | Heat exchanger for heat pump and heat pump device using it | |
| CN102478333A (en) | Defrosting method of refrigeration equipment | |
| CN202119174U (en) | Defrosting device of refrigerating device | |
| CN202229500U (en) | Compressor-free refrigerator | |
| CN205279386U (en) | Prevent condensation structure, motor wire board, helical -lobe compressor and air conditioner | |
| CN202432750U (en) | Solar energy absorption heat recovery hot water air conditioner | |
| CN102564014A (en) | Defroster of refrigerator | |
| CN102563992A (en) | Defrosting method of refrigerating device | |
| CN201697253U (en) | Special base station air conditioner with separated radiant panel evaporator | |
| CN102072608A (en) | Heating device for defroster of refrigeration system and power supply device thereof | |
| JP2010210103A (en) | Heat exchanger for heat pump and heat pump device using the same | |
| CN2929590Y (en) | Air cool heat pump air conditioning system | |
| CN203375592U (en) | Phase changing energy storage air conditioner for communication machine room | |
| CN204063668U (en) | A kind of refrigeration system with evaporative condenser | |
| CN202393095U (en) | Multipurpose refrigerating system | |
| CN203617081U (en) | Isolated refrigerant electric reactor or transformer cooling device | |
| CN202393094U (en) | Ice storage household air-conditioning and refrigerating device | |
| CN220135805U (en) | Refrigeration house based on ethylene glycol | |
| CN102445024A (en) | Household multi-connection comprehensive refrigerating system | |
| CN212157755U (en) | Defrosting device of air-cooled frostless refrigerator | |
| CN202393093U (en) | Energy intensively-utilizing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20111130 |