CN100464141C - Method and device for removing frost from storeroom of refrigerating device - Google Patents
Method and device for removing frost from storeroom of refrigerating device Download PDFInfo
- Publication number
- CN100464141C CN100464141C CNB2005101148793A CN200510114879A CN100464141C CN 100464141 C CN100464141 C CN 100464141C CN B2005101148793 A CNB2005101148793 A CN B2005101148793A CN 200510114879 A CN200510114879 A CN 200510114879A CN 100464141 C CN100464141 C CN 100464141C
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- evaporimeter
- frost
- storeroom
- freezing equipment
- defrosting
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Abstract
It relates to mandatory defrosting method for freezing equipment, with the simultaneous on of the evaporator fan and electric heater, effectively getting rid of the accumulated frost inside the warehouse.
Description
Technical field
The invention relates to a kind of method and device thereof of defrosting, it is applied to freezing equipment, particularly a kind of method and device thereof at the freezing equipment removing frost from storeroom.
Background technology
The basic principle of general freezing equipment, be to utilize equipment such as compressor, evaporimeter, condenser, expansion valve, interconnect with pipeline, and utilize compressor operation, and the refrigerant of pipeline inside is released with HTHP, continue by condenser, expansion valve, and become low-temperature condition, and in by evaporimeter the time, cold energy can be provided away, return at last and compress freeze cycle of formation in the compressor.Wherein in the process of evaporimeter, be with cold energy output (absorption environment's heat), the phenomenon that frosting is arranged so the part of evaporimeter absorbs extraneous aqueous vapor easily, accumulate the heat exchange that too much frost intercepts evaporimeter easily, influence cold energy output, therefore after using a period of time, often need the action that defrosts.
The Defrost mode of tradition freezing equipment comprises that compressor stops method, hot refrigerant vapor defrosting (Hotgas defrost), watering defrosting (water or non freezing solution) and electric defrosting method.Wherein compressor stops method and is only applicable to Ku Wen and is higher than occasion more than 3 ℃, and the most general with the application of electric defrosting mode at the refrigeration system of commercial use.Yet above-mentioned traditional Defrost mode has a sizable blind spot, and the defrosting action that it only heats at the heat exchanger coil of evaporimeter can't defrost to the outer body inside, storehouse of evaporimeter.
In the freezing equipment; because storehouse body switch door number of times is frequent; extraneous hot gas and aqueous vapor are entered to be freezed in the storehouse; frost is accumulated in evaporimeter and the storehouse; influence the freeze capacity and the efficient of freezer; although known Defrost mode can be removed the frost of refrigerating evaporator by above-mentioned Defrost method (electric heating); but for the frost of long-term accumulated in the storehouse; but only can utilize long-time shutdown, opening the door rises again the storehouse or utilizes modes such as watering, fan to be removed, cause to use and go up sizable inconvenience.
Summary of the invention
The object of the present invention is to provide a kind of method and device thereof of freezing equipment removing frost from storeroom, defrosted in body inside, storehouse at freezing equipment, be different from knownly, effectively solve disappearance because of inner refrigerating effect that frosting the causes reduction of storehouse body only at the disadvantage of the heat exchanger coil of evaporimeter defrosting.
For achieving the above object, the method for freezing equipment removing frost from storeroom provided by the invention, this freezing equipment includes a compressor, an expansion valve, a condenser and at least one evaporimeter of mutual binding, and this method comprises:
Close the fan of this compressor and this condenser;
Keep the active state of the fan of this evaporimeter; And
Start arbitrary frost removal that is positioned on this evaporimeter.
The method of described freezing equipment removing frost from storeroom, wherein this frost removal is a defrosting electric heater.
The method of described freezing equipment removing frost from storeroom after wherein this startup one is positioned at frost removal step on this evaporimeter, also includes detection-default value and closes the step of defrost state.
The method of described freezing equipment removing frost from storeroom, wherein this default value is a defrosting time.
The method of described freezing equipment removing frost from storeroom, wherein this default value is the defrosting temperature of this storehouse body.
Description of drawings
Fig. 1 is a freezing equipment schematic diagram of the present invention.
Fig. 2 is the flow chart of the removing frost from storeroom of freezing equipment of the present invention.
Fig. 3 is the view in each stage of freezing equipment of the present invention.
The specific embodiment
Relevant detailed content of the present invention and technology, conjunction with figs. is described as follows:
The method of the removing frost from storeroom of disclosed freezing equipment according to the present invention, at first see also Fig. 1, composition schematic diagram for freezing equipment, consist predominantly of compressor 11, condenser 12, expansion valve 13, evaporimeter 14 and freezer 20, compressor 11, condenser 12, expansion valve 13 and evaporimeter 14 are connected mutually in regular turn with pipeline, inside has working fluid (being generally refrigerant) to flow, compressor 11 is with working fluid (refrigerant) boil down to high-temperature high-pressure state, continue by condenser 12, expansion valve 13, and become low-temperature condition, and in by evaporimeter 14 time, cold energy can be provided away, return at last and compress freeze cycle of formation in the compressor 11.
Wherein the cold energy that is provided by evaporimeter 14 then provides the storehouse body 21 that gives freezer 20, makes storehouse body 21 can maintain freezing state (or refrigeration), wherein, evaporimeter 14 and condenser 12 are in order to be beneficial to its heat exchange, so be equiped with evaporator fan 141 and condenser fan 121 respectively.When using a period of time; evaporimeter 14 is because provide the relation of cold energy (low temperature); in evaporimeter 14 easy frostings; the method of removing is a temporary close compressor 11; and stop condenser fan 121; evaporator fan 141; make it present temporary transient stopped status; and start the frost removal 142 (being generally defrosting electric heating) that is positioned on the evaporimeter 14; with the common kenel-heat exchanger coil of evaporimeter 14; frost removal 142 may twine electric heating thereon, and the heating of energising back makes the frost melts above it; make evaporimeter 14 state that returns to normal condition, improve freezing efficiency.
The above-mentioned Defrost method that is general for evaporimeter 14, but to defrost for storehouse body 21 and to have no idea, the method of defrosting in the storehouse proposed by the invention, see also Fig. 2, when needing to defrost in the storehouse, the condenser fan 121 (step 201) of same first close compressor 11 and condenser 12, and keep the state (step 202) of evaporator fan 141 in effect, just do not close evaporator fan 141, start frost removal 142 (step 203) then,, drive air and flow by the running of evaporator fan 141, effective aqueous vapor with storehouse body 21, the frost body is removed, and recovers the freeze capacity and the efficient of freezing equipment.
And the control about defrosting in this part libraries can adopt automatic induction or manual mode to be moved, and the words of induction need be set up controlled condition automatically, such as temperature, humidity or all the other conditions etc., and can open automatically.As consider that this part controlled condition is difficult to grasp, also can adopt manual mode to move, have additional temperature switch, timer (Timer), manually boot (Start) and the electric wiring and the Control Component (relay R elay) that manually stop (Stop) button and formation control action.Temperature switch stops temperature in order to sensing and setting defrosting; timer in order to control with set defrosting time, when storehouse temperature or defrosting time either party arrive setting value, promptly stop the defrosting action; to prevent superheated and protection, reply original control flow then.
Then see also Fig. 3, be the comparison schematic diagram of each phase run of freezing equipment, during general normal operation, compressor 11, condenser fan 12 and evaporator fan 141 state that keeps on the go; When desire defrosts to evaporimeter 14, then close compressor 11, condenser fan 121 and evaporator fan 141, and start frost removal 142.As when desiring to carry out removing frost from storeroom, same close compressor 11 and condenser fan 121, but 141 states that keep on the go of evaporator fan, and open frost removal 142.
Though the present invention describes as above with above-mentioned preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this technical staff; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking content that claim defines.
Claims (5)
1. the method for a freezing equipment removing frost from storeroom, this freezing equipment includes a compressor, an expansion valve, a condenser and at least one evaporimeter of mutual binding, and this method comprises:
Close the fan of this compressor and this condenser;
Keep the active state of the fan of this evaporimeter; And
Start arbitrary frost removal that is positioned on this evaporimeter.
2. the method for freezing equipment removing frost from storeroom according to claim 1 is characterized in that, wherein this frost removal is a defrosting electric heater.
3. the method for freezing equipment removing frost from storeroom according to claim 1 is characterized in that, after wherein this startup one is positioned at frost removal step on this evaporimeter, also includes the step that detects a default value and close defrost state.
4. as the method for freezing equipment removing frost from storeroom as described in the claim 3, it is characterized in that wherein this default value is a defrosting time.
5. as the method for freezing equipment removing frost from storeroom as described in the claim 3, it is characterized in that wherein this default value is the defrosting temperature of this storehouse body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101148793A CN100464141C (en) | 2005-11-17 | 2005-11-17 | Method and device for removing frost from storeroom of refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101148793A CN100464141C (en) | 2005-11-17 | 2005-11-17 | Method and device for removing frost from storeroom of refrigerating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1967109A CN1967109A (en) | 2007-05-23 |
| CN100464141C true CN100464141C (en) | 2009-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101148793A Expired - Fee Related CN100464141C (en) | 2005-11-17 | 2005-11-17 | Method and device for removing frost from storeroom of refrigerating device |
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| Country | Link |
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| CN (1) | CN100464141C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780693B (en) * | 2019-11-14 | 2022-03-22 | 上海承欢轻工机械有限公司 | Automatic material temperature control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534049A (en) * | 1991-07-30 | 1993-02-09 | Daikin Ind Ltd | Defrosting operation control device for freezing device for container |
| CN1132345A (en) * | 1995-03-29 | 1996-10-02 | 李晶璇 | Defrosting device in use for refrigerating system |
| JPH09318231A (en) * | 1996-05-31 | 1997-12-12 | Matsushita Refrig Co Ltd | Refrigerator |
| JP2003083667A (en) * | 2001-09-06 | 2003-03-19 | Mitsubishi Electric Corp | Controller for freezer/refrigerator |
| JP2003240413A (en) * | 2002-02-20 | 2003-08-27 | Fujitsu General Ltd | Refrigerator |
| CN1548882A (en) * | 2003-05-20 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Defrosting apparatus for refrigerator and defrosting method thereof |
-
2005
- 2005-11-17 CN CNB2005101148793A patent/CN100464141C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534049A (en) * | 1991-07-30 | 1993-02-09 | Daikin Ind Ltd | Defrosting operation control device for freezing device for container |
| CN1132345A (en) * | 1995-03-29 | 1996-10-02 | 李晶璇 | Defrosting device in use for refrigerating system |
| JPH09318231A (en) * | 1996-05-31 | 1997-12-12 | Matsushita Refrig Co Ltd | Refrigerator |
| JP2003083667A (en) * | 2001-09-06 | 2003-03-19 | Mitsubishi Electric Corp | Controller for freezer/refrigerator |
| JP2003240413A (en) * | 2002-02-20 | 2003-08-27 | Fujitsu General Ltd | Refrigerator |
| CN1548882A (en) * | 2003-05-20 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Defrosting apparatus for refrigerator and defrosting method thereof |
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| Publication number | Publication date |
|---|---|
| CN1967109A (en) | 2007-05-23 |
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Granted publication date: 20090225 Termination date: 20201117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |