CN202126111U - Display cabinet refrigerating-defrosting system - Google Patents
Display cabinet refrigerating-defrosting system Download PDFInfo
- Publication number
- CN202126111U CN202126111U CN2011202214276U CN201120221427U CN202126111U CN 202126111 U CN202126111 U CN 202126111U CN 2011202214276 U CN2011202214276 U CN 2011202214276U CN 201120221427 U CN201120221427 U CN 201120221427U CN 202126111 U CN202126111 U CN 202126111U
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- compressor
- pipeline
- condenser
- reservoir
- evaporimeter
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Abstract
The utility model discloses a display cabinet refrigerating-defrosting system comprising a compressor, a condenser, a reservoir, a filter and an evaporator, wherein the compressor is connected with the condenser; the condenser is connected with the reservoir; the reservoir is connected with the filter; the evaporator is connected with the compressor; a first pipeline and a second pipeline are arranged between the filter and the evaporator and connected in parallel; the first pipeline comprises a refrigerating solenoid valve and an expansion valve; and the second pipeline comprises a defrosting solenoid valve. The display cabinet refrigerating-defrosting system is long in service life, energy-saving and environment-friendly, and small in internal temperature change.
Description
Technical field
The utility model relates to a kind of refrigeration defrost system.
Background technology
Improving constantly of Along with people's living standard; People have increasingly high requirement to the freshness of food; Therefore the various facilities such as freezer, refrigerator-freezer or refrigerator that are used for food fresh keeping are used widely, and the refrigeration defrost system is one of most important component in the above-mentioned facility.
Fig. 1 and 2 shows the structural representation of refrigeration defrost system commonly used in the prior art.The refrigeration defrost system comprises compressor 11, condenser 12, reservoir 13, filter 14 and evaporimeter 15; This refrigeration defrost system also comprises expansion valve 16, magnetic valve 17 and solenoid operated four-way valve 18; Wherein 17 parallel connections also all are connected with evaporimeter 15 with filter 14 expansion valve 16 with magnetic valve, and solenoid operated four-way valve 18 is connected conducting mutually with compressor 11, condenser 12 and evaporimeter 15.Magnetic valve 17 is generally check valve.
Refrigerant flowed to when arrow was pointed out to freeze among Fig. 1.During refrigeration, magnetic valve 17 in off position, no refrigerant flows through in the magnetic valve 17, refrigerant is through getting into evaporimeter 15 after expansion valve 16 throttlings.Solenoid operated four-way valve 18 in off position, compressor high-voltage end 1. with 2. conducting of condenser end, refrigerant gets into condenser 12 from the high-pressure side of compressor 11; The compressor low-pressure end 3. with 4. conducting of evaporator end, refrigerant gets into compressors 11 return-air mouths from evaporimeter 15.
Refrigerant flowed to when arrow was pointed out to defrost among Fig. 2.During defrosting, magnetic valve 17 has refrigerant to pass through in open mode in the magnetic valve 17, the obstructed overexpansion valve 16 of refrigerant but directly get into filter 14 from evaporimeter 15.Solenoid operated four-way valve 18 conductings, compressor high-voltage end 1. with 4. conducting of evaporator end, refrigerant gets into evaporimeter 15 from compressor 11 high-pressure sides; Condenser end 2. with the 3. conducting of compressor low-pressure end, refrigerant gets into compressors 11 return-air mouths from evaporimeter 15.
In the refrigeration defrost system structure that above-mentioned employing solenoid operated four-way valve connects, because system's bend is many, pressure is high, and load is big, causes parts weak points in service life such as compressor, and power consumption is high, not energy-conservation; In addition and since when heating compressor high temperature steam state refrigerant directly get into evaporimeter, make the ice vaporization on the evaporimeter, cause in-cabinet temperature too high and cooling time is long again, thereby influence the fresh-keeping effect of food.
The utility model content
The utility model discloses a kind of refrigeration defrost system, this system's long service life, energy-conserving and environment-protective and internal temperature change little.
The refrigeration defrost system of the utility model comprises compressor, condenser, reservoir, filter and evaporimeter, and compressor is connected with condenser, and condenser is connected with reservoir; Reservoir is connected with filter; Evaporimeter is connected with compressor, has first pipeline and second pipeline between filter and the evaporimeter, first pipeline and the parallel connection of second pipeline; First pipeline comprises refrigeration magnetic valve and expansion valve, and second pipeline comprises the defrosting magnetic valve.
In a preferred embodiment, the refrigeration defrost system also comprises pressure controller, and this pressure controller is connected with reservoir.
Description of drawings
Fig. 1 be refrigeration defrost system in the prior art structural representation and when refrigeration the refrigerant flow graph.
Fig. 2 be refrigeration defrost system in the prior art structural representation and when defrosting the refrigerant flow graph.
Fig. 3 be the utility model the refrigeration defrost system structural representation and when refrigeration the refrigerant flow graph.
Fig. 4 be the utility model the refrigeration defrost system structural representation and when defrosting the refrigerant flow graph.
The specific embodiment
In order to make those skilled in the art more be expressly understood purpose, technical scheme and the advantage of the utility model,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Shown in Fig. 3 and 4, the refrigeration defrost system of the utility model comprises compressor 1, condenser 2, reservoir 3, filter 4 and evaporimeter 5, and compressor 1 is connected with condenser 2; Condenser 2 is connected with reservoir 3, and reservoir 3 is connected with filter 4, and evaporimeter 5 is connected with compressor 1; Have first pipeline and second pipeline between filter 4 and the evaporimeter 5; First pipeline and the parallel connection of second pipeline, first pipeline comprise that refrigeration magnetic valve 7 and expansion valve 6, the second pipelines comprise defrosting magnetic valve 8.Above-mentioned parts connect the back and form loop, the circulation of refrigerant flow therein.Reservoir 3 can also be connected with pressure controller.
Refrigerant flowed to when arrow was pointed out to freeze among Fig. 3.During refrigeration, defrosting magnetic valve 8 does not have refrigerant to flow through in the defrosting magnetic valve 8 in off position; Refrigerant arrives expansion valve 6 through refrigeration magnetic valve 7 behind condenser 2, reservoir 3, filter 4 after compressor 1 compression, after expansion valve 6 throttlings, get into evaporimeter 5, gets into compressor 1 from evaporimeter 5 again, circulates.
Refrigerant flowed to when arrow was pointed out to defrost among Fig. 4.During defrosting, refrigeration magnetic valve 7 does not have refrigerant to flow through in the refrigeration magnetic valve 7 in off position; Refrigerant gets into evaporimeter 5 through defrosting magnetic valve 8 behind condenser 2, reservoir 3, filter 4 after compressor 1 compression, get into compressor 1 from evaporimeter 5 again, circulates.
The refrigeration defrost system of the utility model is because system's bend is few, and pressure is low, and it is little to load; Therefore parts long service life such as compressor and consume energy low, energy-conserving and environment-protective, in addition; Because when heating, the high temperature steam state refrigerant of compressor became the liquid evaporimeter that gets into of normal temperature after leading directly to condenser, ice on the evaporimeter is melted rapidly but do not vaporize, so variations in temperature is little in the system; Cooling time is short, and is therefore good to effect of food preservation.
Claims (2)
1. a refrigeration defrost system comprises compressor, condenser, reservoir, filter and evaporimeter, it is characterized in that; Said compressor is connected with said condenser; Said condenser is connected with said reservoir, and said reservoir is connected with said filter, and said evaporimeter is connected with said compressor; Have first pipeline and second pipeline between said filter and the said evaporimeter; Said first pipeline and the parallel connection of said second pipeline, said first pipeline comprises refrigeration magnetic valve and expansion valve, said second pipeline comprises the defrosting magnetic valve.
2. refrigeration defrost system as claimed in claim 1 is characterized in that, said refrigeration defrost system also comprises pressure controller, and said pressure controller is connected with reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202214276U CN202126111U (en) | 2011-06-28 | 2011-06-28 | Display cabinet refrigerating-defrosting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202214276U CN202126111U (en) | 2011-06-28 | 2011-06-28 | Display cabinet refrigerating-defrosting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202126111U true CN202126111U (en) | 2012-01-25 |
Family
ID=45489177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202214276U Expired - Lifetime CN202126111U (en) | 2011-06-28 | 2011-06-28 | Display cabinet refrigerating-defrosting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202126111U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270697A (en) * | 2017-07-18 | 2017-10-20 | 合肥万都云雅制冷科技股份有限公司 | A kind of novel heat pump air-heater |
| CN112665263A (en) * | 2020-12-21 | 2021-04-16 | 青岛大上电器有限公司 | Large-hollow glass combined island cabinet |
-
2011
- 2011-06-28 CN CN2011202214276U patent/CN202126111U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270697A (en) * | 2017-07-18 | 2017-10-20 | 合肥万都云雅制冷科技股份有限公司 | A kind of novel heat pump air-heater |
| CN112665263A (en) * | 2020-12-21 | 2021-04-16 | 青岛大上电器有限公司 | Large-hollow glass combined island cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120125 |