CN2650035Y - Superlow temperature multi-temperature refrigerator - Google Patents
Superlow temperature multi-temperature refrigerator Download PDFInfo
- Publication number
- CN2650035Y CN2650035Y CN 03277549 CN03277549U CN2650035Y CN 2650035 Y CN2650035 Y CN 2650035Y CN 03277549 CN03277549 CN 03277549 CN 03277549 U CN03277549 U CN 03277549U CN 2650035 Y CN2650035 Y CN 2650035Y
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- heat exchanger
- temperature
- refrigerating
- refrigerating chamber
- liquid separator
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Abstract
The utility model discloses a super low multi-temperature icebox able to work at a plurality of temperature zones, the cold flow for the icebox is provided by a set of refrigerating system. The icebox comprises a compressor and a refrigerating unit, the refrigerating unit comprises one or more refrigerating chambers with thermal insulation layers, the refrigerating unit adopts a mixed working medium single-stage compression and multi-stage throttle, each stage can independently output the cold flow through a throttle temperature control valve to the relevant evaporator arranged in the refrigerating chamber, and the cold flow is provided by a set of refrigerating system; according to different refrigerating temperature and speed requirements, one or more evaporators can be put into operation.
Description
Technical field
The utility model discloses a kind of many warm areas of ultralow temperature refrigerator.
Background technology
Existing ultra low temperature freezer all is in single warm area work, generally be divided into-50 ℃ ,-90 ℃, 130 ℃, 150 ℃ several warm areas, each operation temperature area needs different ultra low temperature freezers, the user is if need the refrigerator of more than one different operating temperature to buy many refrigerator equipment with regard to needs like this, make fund input bigger, for example, the user need be kept at a part of sample-80 ℃, when some sample is kept at-150 ℃, just need to buy two ultra low temperature freezers, one is operated in-90 ℃ of warm areas, and another is operated in-150 ℃ of warm areas.In addition, many biological products need carry out quick-frozen in-50 ℃ of fast freezing cases, are transferring to-90 ℃ or more preserve in the refrigerating box of low temperature then, and the user also needs to purchase a low-temperature quick-freezing case except that needs are purchased a ultra low temperature freezer like this.
Technology contents
Technical task to be solved in the utility model provides a kind of refrigerator that can be operated in a plurality of warm areas, and this refrigerator provides cold by a cover refrigeration system.
For solving above-mentioned technical task, the utility model has adopted following technical scheme: the ultralow temperature multi-temperature refrigerator, it comprises compression unit and refrigeration unit, it is characterized in that: refrigerating unit comprises the one or more refrigerating chamber that contains thermal insulation layer, described refrigeration unit adopts mixed working fluid single stage compress multi-level throttle, and its each grade is and can independently exports cold to the interior evaporimeter that is provided with of corresponding refrigerating chamber by the throttling temperature control valve.
As shown from the above technical solution, the utility model has two kinds of basic implementations, the first is arranged to two or more at least soak zones with the refrigerating chamber of refrigerator, each heat preservation zone is operated in different temperature ranges and can independently realizes control, and provides cold by a cover refrigeration system; It two is to arrange at least two cover evaporimeters in same refrigerating chamber, and is different according to the requirement of cryogenic temperature and speed, makes wherein one or more evaporator operation.
Summary of drawings
Fig. 1, the 2nd, structural principle of the present utility model.
The specific embodiment
The utility model is by being provided with a plurality of refrigerating chambers, each refrigerating chamber can be operated in different warm areas, and can control separately each other, also can in a refrigerating chamber, a plurality of evaporimeters be set, and by one the cover refrigeration system cold is provided, make the refrigerating chamber can be, and have different cooling rates in different warm area work.The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, refrigerating unit comprises two at least by the refrigerating chamber 15,16 that contains thermal insulation layer 14, wherein be respectively arranged with first, second evaporimeter 12,13, the mixed working fluid that compressor 1 provides is communicated with the evaporimeter 12 of refrigerating chamber 15 and constitutes cooling cycle system through condenser 2, filter 3, one-level vapour liquid separator 4, first-class heat exchanger 5, secondary heat exchanger 8 and throttling temperature control valve 11 successively; The liquid phase end extension working medium of secondary vapour liquid separator 7 takes back the low-temp low-pressure vapour phase end to first-class heat exchanger 5 after throttling temperature control valve 10 is connected to evaporimeter 13 in the refrigerating chamber 16.Be connected with one-level choke valve 6 between the low-pressure end of described first-class heat exchanger 5 and the one-level vapour liquid separator 4, be connected with one-level choke valve 9 between the low-pressure end of secondary heat exchanger 8 and the secondary vapour liquid separator 7.
In the present embodiment, cooling flow adopts single stage compress mixed working fluid Refrigeration Technique, reaches temperature required by throttling repeatedly.Refrigerating chamber is separated into two above separate portions, be operated in different warm areas, evaporimeter 12 colds are supplied with by final stage choke valve 11 in the minimum temperature interval, other freezes the back to corresponding evaporator 13 according to temperature required by corresponding vapour liquid separator liquid phase end extension throttling, each throttling temperature control valve 10,11 that leads to evaporimeter 12 or evaporimeter 13 all is adjustable, can adopt manual adjustments, also can adopt electronic or magnetic valve or pneumatic operated valve, so that realize control automatically, the internal temperature of each refrigerating chamber 15,16 can be realized independent adjusting like this.Except that the throttling temperature control valve 10,11 that leads to evaporimeter 12 and evaporimeter 13, also set up precooled throttling valve 6,9 separately, when certain refrigerating chamber quits work, refrigeration system still can realize normal circulation by precooled throttling valve 6 or 9, makes the refrigerating chamber in the work keep normal operating temperature.
Embodiment 2
As shown in Figure 2, be respectively arranged with two groups of evaporimeters 12,13 in the refrigerating unit refrigerating chamber 15, the mixed working fluid that compressor 1 provides is communicated with evaporimeter 12 in the refrigerating chamber 15 and constitutes cooling cycle system through condenser 2, filter 3, vapour liquid separator 4, first-class heat exchanger 5, secondary heat exchanger 8 and throttling temperature control valve 8 successively; The liquid phase end extension working medium of secondary vapour liquid separator 7 is connected to evaporimeter 13 in the refrigerating chamber 15 through throttling temperature control valve 10, and the low pressure return-air is to the low-pressure end of first-class heat exchanger 5.All the other reference examples 1.
As shown from the above technical solution, be that two cover evaporimeters 12,13 are placed a refrigerating chamber 15 in the present embodiment, two throttling temperature control valves 10,11 are opened simultaneously when the needs quick-frozen, refrigerating chamber 15 fast coolings, only keep the unlatching of final stage choke valve after reaching quick freezing temperature, another is closed, and refrigerating chamber 15 continues to be cooled to refrigerated storage temperature.
Claims (5)
1, a kind of ultralow temperature multi-temperature refrigerator, it comprises compression unit and refrigeration unit, it is characterized in that: refrigerating unit comprises the one or more refrigerating chamber that contains thermal insulation layer, described refrigeration unit adopts mixed working fluid single stage compress multi-level throttle, and its each grade is and can independently exports cold to the interior evaporimeter that is provided with of corresponding refrigerating chamber by the throttling temperature control valve.
2, ultralow temperature multi-temperature refrigerator according to claim 1, it is characterized in that: refrigerating unit comprises two refrigerating chambers (15), (16) at least, wherein be respectively arranged with first, second evaporimeter (12), (13), the high pressure mixing working medium that compressor (1) provides is back to the low-pressure end of secondary heat exchanger (8) successively through condenser (2), filter (3), one-level vapour liquid separator (4), first-class heat exchanger (5), secondary heat exchanger (8) and final stage throttling temperature control valve (11) evaporimeter (12) to first refrigerating chamber (15) by the low pressure return-air; The liquid phase end extension working medium of secondary vapour liquid separator (7), through the evaporimeter (13) of throttling temperature control valve (10) to the refrigerating chamber (16), the low pressure return-air is to the low-pressure end of first-class heat exchanger (5).
3, ultralow temperature multi-temperature refrigerator according to claim 1, it is characterized in that: be respectively arranged with two groups of evaporimeters (12) in the refrigerating unit refrigerating chamber (15), (13), the mixed working fluid that compressor (1) provides is successively through condenser (2), filter (3), one-level vapour liquid separator (4), first-class heat exchanger (5), first evaporimeter (12) in secondary heat exchanger (8) and throttling temperature control valve (11) and the refrigerating chamber (15), the liquid phase end extension working medium of secondary vapour liquid separator (7) take back after throttling temperature control valve (10) is connected to second evaporimeter (13) in the refrigerating chamber (15) to the low pressure of first-class heat exchanger (5) and hold mutually.
4, ultralow temperature multi-temperature refrigerator according to claim 2, it is characterized in that: be connected with one-level choke valve (6) between the low-pressure end of described first-class heat exchanger (5) and the one-level vapour liquid separator (4), be connected with one-level choke valve (9) between the low-pressure end of secondary heat exchanger (8) and the secondary vapour liquid separator (7).
5, ultralow temperature multi-temperature refrigerator according to claim 3, it is characterized in that: be connected with one-level choke valve (6) between the low-pressure end of described first-class heat exchanger (5) and the one-level vapour liquid separator (4), be connected with one-level choke valve (9) between the low-pressure end of secondary heat exchanger (8) and the secondary vapour liquid separator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277549 CN2650035Y (en) | 2003-08-07 | 2003-08-07 | Superlow temperature multi-temperature refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277549 CN2650035Y (en) | 2003-08-07 | 2003-08-07 | Superlow temperature multi-temperature refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2650035Y true CN2650035Y (en) | 2004-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277549 Expired - Fee Related CN2650035Y (en) | 2003-08-07 | 2003-08-07 | Superlow temperature multi-temperature refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2650035Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613697A (en) * | 2013-11-04 | 2015-05-13 | Lg电子株式会社 | Refrigerator |
| CN105466107A (en) * | 2014-07-31 | 2016-04-06 | 青岛海尔智能技术研发有限公司 | Freezing and cold storage device and control method |
| CN114763955A (en) * | 2021-01-14 | 2022-07-19 | 合肥美的智能科技有限公司 | Storage device |
-
2003
- 2003-08-07 CN CN 03277549 patent/CN2650035Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613697A (en) * | 2013-11-04 | 2015-05-13 | Lg电子株式会社 | Refrigerator |
| US9777956B2 (en) | 2013-11-04 | 2017-10-03 | Lg Electronics Inc. | Refrigerator |
| CN105466107A (en) * | 2014-07-31 | 2016-04-06 | 青岛海尔智能技术研发有限公司 | Freezing and cold storage device and control method |
| CN114763955A (en) * | 2021-01-14 | 2022-07-19 | 合肥美的智能科技有限公司 | Storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |