CN202188699U - Double-evaporator device - Google Patents
Double-evaporator device Download PDFInfo
- Publication number
- CN202188699U CN202188699U CN2011201888214U CN201120188821U CN202188699U CN 202188699 U CN202188699 U CN 202188699U CN 2011201888214 U CN2011201888214 U CN 2011201888214U CN 201120188821 U CN201120188821 U CN 201120188821U CN 202188699 U CN202188699 U CN 202188699U
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- CN
- China
- Prior art keywords
- evaporimeter
- magnetic valve
- evaporator
- communicated
- input
- 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
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Abstract
The utility model provides a double-evaporator device which is easy to be defrosted and energy-saving. A first evaporator input end solenoid valve is connected with the input end of a first evaporator, a first evaporator output end solenoid valve is communicated with the output end of the first evaporator and an external air return pipe, and a first evaporator communicated solenoid valve is communicated with the output end of the first evaporator and the input end of a second evaporator. A second evaporator input end solenoid valve is connected with the input end of a second evaporator, a second evaporator output end solenoid valve is communicated with the output end of the second evaporator and an external air return pipe, and a second evaporator communicated solenoid valve is communicated with the output end of the second evaporator and the input end of the first evaporator.
Description
Technical field
The utility model relates to the evaporator of refrigeration plant, relates in particular to a kind of double evaporators device that is easy to defrost.
Background technology
Serviceability temperature is employed in the electrical heating defrost structure that the additional electrical heating tube is removed the frost that adheres on the evaporimeter in the evaporator usually in the refrigeration plant below 0 ℃.In this electrical heating defrost structure, when defrost, stop refrigeration, make electric heating tube work, the heat through electric heating tube work produces melts the frost on the evaporimeter.
But electrical heating defrost structure need dispose bigger electrical capacity, and the heat ecto-entad transmits, and causes heat utilization ratio low, and heating tube is inhomogeneous with the evaporimeter contact-making surface, has the halfway problem of defrost.And during defrost, temperature recovery is high, the time is long, can influence the quality of the product that adopts this evaporimeter.Moreover electric heating tube is not having to produce very high temperature under the situation of temperature restriction, and this can directly cause commodity to be scrapped and disaster hidden-trouble is arranged, and consume big volume and electricity, is unfavorable for energy-conservation and causes operating cost higher.
The utility model content
The utility model is exactly to propose in view of the above problems, and its purpose is to provide a kind of defrost and energy-conservation double evaporators device of being easy to.
The utility model relates to a kind of double evaporators device; It is through feed pipe the supply system cryogen; And be connected with outside muffler; Have first evaporator system and second evaporator system, wherein said first evaporator system has first evaporimeter, the first evaporimeter input magnetic valve, the first evaporimeter output magnetic valve, first evaporimeter connection magnetic valve; Said second evaporator system has second evaporimeter, the second evaporimeter input magnetic valve, the second evaporimeter output magnetic valve, second evaporimeter connection magnetic valve; In this double evaporators device; The said first evaporimeter input magnetic valve is connected the input of said first evaporimeter; The said first evaporimeter output magnetic valve is communicated with the output and the said outside muffler of said first evaporimeter; Said first evaporimeter is communicated with magnetic valve and is communicated with the output of said first evaporimeter and the input of said second evaporimeter; The said second evaporimeter input magnetic valve is connected the input of said second evaporimeter; The second evaporimeter output magnetic valve is communicated with the output and the said outside muffler of said second evaporimeter, and second evaporimeter is communicated with magnetic valve and is communicated with the output of said second evaporimeter and the input of said first evaporimeter.
According to the double evaporators device of the utility model, can realize being easy to defrost and energy-conservation double evaporators device.
Description of drawings
Fig. 1 is the structural representation of the double evaporators device of expression the utility model.
The specific embodiment
As shown in Figure 1; The double evaporators device of the utility model is via feed pipe the supply system cryogen, and is connected with outside muffler, has first evaporator system and second evaporator system; Wherein said first evaporator system has first evaporimeter (being called for short evaporimeter A); The first evaporimeter input magnetic valve A1, A2, the first evaporimeter output magnetic valve A3, first evaporimeter is communicated with magnetic valve A4; Said second evaporator system has second evaporimeter (being called for short evaporimeter B), the second evaporimeter input magnetic valve B1, B2, and the second evaporimeter output magnetic valve B3, second evaporimeter is communicated with magnetic valve B4.
The structure of the double evaporators device of the utility model is described below.With the first evaporimeter input magnetic valve A1, A2; The first evaporimeter output magnetic valve A3; First evaporimeter is communicated with magnetic valve A4; The second evaporimeter input magnetic valve B1, B2, the second evaporimeter output magnetic valve B3, second evaporimeter are communicated with magnetic valve B4 and abbreviate magnetic valve A1, A2, A3, A4, B1, B2, B3, B4 as.
In this double evaporators device, magnetic valve A1, A2 are connected the input of evaporimeter A, and magnetic valve A3 is communicated with output and the outside muffler of evaporimeter A, and magnetic valve A4 is communicated with the output of evaporimeter A and the input of evaporimeter B; Magnetic valve B1, B2 are connected the input of evaporimeter B, and magnetic valve B3 is communicated with output and the outside muffler of evaporimeter B, and magnetic valve B4 is communicated with the output of evaporimeter B and the input of evaporimeter A.
Under the normal state that uses, in the double evaporators device of the utility model, magnetic valve A1, B1 are in normal refrigerating state, and controlled by temperature control, and magnetic valve B3, A3 are in on-state always, and A2, A4, B2, B4 are in closed condition always.
When this double evaporators device needs defrost, then need regulate the state of each magnetic valve again.At first through regulating the unlatching number or the rotating speed of condensation fan in the air cooling system, the control condensation temperature makes the liquid phase refrigerant in system's feed pipe reach the temperature about 50 ℃.The expansion valve A that the evaporimeter A that defrost is wanted in the magnetic valve A1 that the liquid phase refrigerant of this condition of high temperature is used via defrost, the direct importing of A2 is supporting goes out to hold.At this moment, magnetic valve A1, A2, A4, B3 are in on-state, and magnetic valve A3, B1, B2, B4 are in closed condition.The liquid refrigerant of higher temperature directly flows through in evaporimeter A after passing through magnetic valve A1, A2, passes to the frost layer that is attached to evaporimeter A surface to heat from inside to outside, and the white layer surperficial to this evaporimeter A carries out defrost, and this liquid refrigerant obtains cooling simultaneously.Cooled cold-producing medium imports to evaporimeter B through magnetic valve A4, can supply this evaporimeter B refrigeration.
After the frost layer off-bottom on evaporimeter A surface, close magnetic valve A1, A2 on the defrost liquid pipe earlier, stop the cold-producing medium of the condition of high temperature to flow into.At this moment, magnetic valve A4, B3 still connect, and magnetic valve A1, A2, A3, B1, B2, B4 are in closed condition.Liquid refrigerant in the evaporimeter A is converted into gaseous state through after the defrost from liquid state, flows through evaporimeter B, supplies evaporimeter B to freeze, and flow back into muffler through magnetic valve A4, the B3 that is in on-state.After the liquid refrigerant in the evaporimeter A is all accomplished the conversion from the liquid refrigerant to the gaseous refrigerant, connect magnetic valve B1, B2, B4, A3, close magnetic valve A1, A2, A4, B3.Beginning that evaporimeter B is carried out defrost handles.
At this moment, the liquid phase refrigerant that temperature is about 50 ℃, the magnetic valve B1, the B2 that use via defrost, from system's feed pipe directly import the supporting expansion valve B of the evaporimeter B that wants defrost go out to hold.At this moment, owing to magnetic valve B1, B2, B4, A3 are in on-state, magnetic valve A1, A2, A4, B3 are in closed condition; So; After the liquid refrigerant of higher temperature passes through magnetic valve B1, B2, directly flow through the inside of evaporimeter B, pass to heat from inside to outside the frost layer that is attached to evaporimeter B surface; Frost layer to this evaporimeter B surface carries out defrost, and this liquid refrigerant obtains cooling simultaneously.Cooled cold-producing medium imports to evaporimeter A through magnetic valve B4, can supply this evaporimeter A refrigeration.
Claims (1)
1. double evaporators device; It is through feed pipe the supply system cryogen; And be connected with outside muffler; Have first evaporator system and second evaporator system, wherein said first evaporator system has first evaporimeter, the first evaporimeter input magnetic valve, the first evaporimeter output magnetic valve, first evaporimeter connection magnetic valve; Said second evaporator system has second evaporimeter, the second evaporimeter input magnetic valve, the second evaporimeter output magnetic valve, second evaporimeter and is communicated with magnetic valve, and this double evaporators device is characterised in that,
The said first evaporimeter input magnetic valve is connected the input of said first evaporimeter,
The said first evaporimeter output magnetic valve is communicated with the output and the said outside muffler of said first evaporimeter,
Said first evaporimeter is communicated with magnetic valve and is communicated with the output of said first evaporimeter and the input of said second evaporimeter,
The said second evaporimeter input magnetic valve is connected the input of said second evaporimeter,
The said second evaporimeter output magnetic valve is communicated with the output and the said outside muffler of said second evaporimeter,
Said second evaporimeter is communicated with magnetic valve and is communicated with the output of said second evaporimeter and the input of said first evaporimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201888214U CN202188699U (en) | 2011-05-25 | 2011-05-25 | Double-evaporator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201888214U CN202188699U (en) | 2011-05-25 | 2011-05-25 | Double-evaporator device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202188699U true CN202188699U (en) | 2012-04-11 |
Family
ID=45920145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201888214U Expired - Fee Related CN202188699U (en) | 2011-05-25 | 2011-05-25 | Double-evaporator device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202188699U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135730A (en) * | 2015-09-25 | 2015-12-09 | 北京建筑大学 | Refrigerating circulatory system |
| CN105270136A (en) * | 2014-07-16 | 2016-01-27 | 福特全球技术公司 | Maximizing defrost mode in electrified vehicle having dual evaporator and dual heater core climate control system |
| CN105865130A (en) * | 2016-04-27 | 2016-08-17 | 青岛海尔股份有限公司 | Constant-temperature refrigerator and control method thereof |
-
2011
- 2011-05-25 CN CN2011201888214U patent/CN202188699U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270136A (en) * | 2014-07-16 | 2016-01-27 | 福特全球技术公司 | Maximizing defrost mode in electrified vehicle having dual evaporator and dual heater core climate control system |
| CN105135730A (en) * | 2015-09-25 | 2015-12-09 | 北京建筑大学 | Refrigerating circulatory system |
| CN105865130A (en) * | 2016-04-27 | 2016-08-17 | 青岛海尔股份有限公司 | Constant-temperature refrigerator and control method thereof |
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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: 20120411 Termination date: 20140525 |