CN209085104U - Condensation unit, cryogenic refrigerating system for alternating temperature cabinet - Google Patents
Condensation unit, cryogenic refrigerating system for alternating temperature cabinet Download PDFInfo
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- CN209085104U CN209085104U CN201821568792.2U CN201821568792U CN209085104U CN 209085104 U CN209085104 U CN 209085104U CN 201821568792 U CN201821568792 U CN 201821568792U CN 209085104 U CN209085104 U CN 209085104U
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- heat exchanger
- refrigerant
- condensation unit
- condenser
- refrigeration
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Abstract
The utility model discloses a kind of condensation unit, cryogenic refrigerating systems for alternating temperature cabinet, wherein condensation unit includes middle cryogenic refrigeration compressor, condenser and evaporating heat exchanger, and evaporating heat exchanger includes the refrigerant side for placing refrigerant and the refrigerating medium side for placing refrigerating medium；The input port of condenser is connect with the delivery outlet of middle cryogenic refrigeration compressor, the refrigerant delivery outlet of condenser is connected to the refrigerant side entrance of evaporating heat exchanger by freezing restricting element and refrigeration restricting element, the refrigerant side outlet of evaporating heat exchanger is connect with the input port of middle cryogenic refrigeration compressor, forms refrigeration cycle.The condensation unit only needs single compressor that a cabinet body can be realized and has both refrigeration and freezing function, and system matches and control are simple, at low cost；It recycles heat exchange using refrigerating medium to cool down, refrigerant temperature is higher than 0 DEG C in refrigeration application, and nothing freezes and frosting, and there is no defrosts to cause temperature wide fluctuations and compressor there are the risk of liquid hammer, and the fluctuation of alternating temperature in-cabinet temperature is small.
Description
Technical field
The utility model relates to a kind of low-temperature refrigeration technology field, in particular to a kind of condensation unit for alternating temperature cabinet,
Cryogenic refrigerating system.
Background technique
Field of low-temperature refrigeration refers to such as freezing and refrigeration cabinet, miniature cold storage, kitchen refrigerator, exhibition formula cabinet, ice machine, ice cream
The commercial freezing such as machine, middle low-temperature experimental device and special equipment, automobile-used movable refrigerating equipment and supermarket's island cabinet, air curtain cabinet is cold
Hide equipment.Wherein the demand of varying-temperature refrigerator is continuously increased, the reason for this is that realizing freezing and refrigeration conversion in a cabinet body, is equivalent to
One cabinet body of client can be used when 2 cabinet bodies, fairly simple convenience.But more warm cabinets are due to the cooling capacity that freezes and refrigerate at present
Range is different, needs using double-compressor or frequency-changeable compressor, comparatively laborious in system matches and control, while higher cost.
Utility model content
The utility model in order to overcome the shortcomings of the above technology, provide it is a kind of a cabinet body can be transformed into refrigeration and
Freeze the condensation unit for alternating temperature cabinet of two kinds of different operating conditions.
The utility model additionally provides a kind of cryogenic refrigerating system including condensation unit described above.
The utility model overcomes the technical solution used by its technical problem to be:
A kind of condensation unit for alternating temperature cabinet, including middle cryogenic refrigeration compressor, condenser and evaporating heat exchanger, evaporation
Heat exchanger includes the refrigerant side for placing refrigerant and the refrigerating medium side for placing refrigerating medium；The input port of the condenser is low in
The delivery outlet of warm refrigeration compressor connects, and the refrigerant delivery outlet of condenser is connected by freezing restricting element with refrigeration restricting element
To the refrigerant side entrance of evaporating heat exchanger, the input port of the refrigerant side outlet and middle cryogenic refrigeration compressor of evaporating heat exchanger
Connection forms refrigeration cycle.
It further, further include the condensation fan to radiate to condenser, for condenser air draught or blowing.
Further, the middle cryogenic refrigeration compressor is using cryogenic refrigeration compressor in totally enclosed type.
Further, the condenser is using one of pipe type, parallel flow type, corrugated tube type or micropassage type.
Further, the motor of the condensation fan is using one in the electromechanical machine of cover, inner rotor motor or external rotor electric machine
Kind.
Further, the freezing restricting element and refrigeration restricting element are swollen using capillary, heating power expansion valve or electronics
One of swollen valve.
Further, the structure of the evaporating heat exchanger changes one of formula, bushing type or shell-tube type using plate.
Another embodiment of the utility model, additionally provides a kind of cryogenic refrigerating system, including described in any of the above-described
Condensation unit, further include circulating pump and heat exchanger, refrigerating medium, the refrigerating medium of evaporating heat exchanger placed in the heat exchanger
Side connect to form circulation loop by circulating pump with heat exchanger.
Further, further include evaporating fan for radiating to heat exchanger.
Further, the circulating pump uses one of alternating current positive displacement pump or direct current positive displacement pump.
The technical concept of the utility model is: after the fluorine system system work of compressor, being saved by refrigeration restricting element or freezing
The refrigerating medium of evaporating heat exchanger refrigerating medium side is cooled to 1 DEG C or so or -25 DEG C or so by fluid element；Refrigerating in evaporating heat exchanger
Agent is recycled all the way by the heat exchanger formation in circulating pump and alternating temperature cabinet, and the refrigerating medium flowed in heat exchanger recycles heat exchange
Cooling, makes alternating temperature cabinet reach 2 to 7 DEG C or -18 to -25 DEG C.In refrigeration operating condition, since refrigerant temperature is higher than 0 DEG C, drop
Warm process does not need defrost；The running temperature of refrigerating medium is higher than conventional refrigerator evaporating temperature, the refrigeration application tool of alternating temperature cabinet simultaneously
There is certain energy-saving effect.
The beneficial effects of the utility model are:
1, single compressor can be realized a cabinet body and have both refrigeration and freezing function, and system matches and control are simpler
It is single, and reduce costs.
2, heat exchange being recycled using refrigerating medium to cool down, refrigerant temperature is higher than 0 DEG C in refrigeration application, and nothing freezes and frosting,
Leading to temperature wide fluctuations and compressor there is no defrost, there are the risks of liquid hammer, and the fluctuation of alternating temperature in-cabinet temperature is small, is conducive to
Product fresh-keeping and cold storage, row reliable for operation is high, ensure that the stability of alternating temperature cabinet operation.
3, condensation unit can be used as a modular arrangements, and match with cryogenic refrigerating system, exist to alternating temperature cabinet producer
Great simplicity is brought in installation and operation, is promoted convenient for a wide range of.
Detailed description of the invention
Fig. 1 is the schematic illustration that unit and cryogenic refrigerating system are condensed described in the utility model embodiment.
In figure, cryogenic refrigeration compressor in 1-, 2- condenser, 3- condensation fan, 4- freezing restricting element, 5- refrigeration throttling
Element, 6- evaporating heat exchanger, 7- circulating pump, 8- refrigerant side entrance, the outlet of 9- refrigerant side, 10- heat exchanger, 11- evaporation
Fan.
Specific embodiment
The utility model is better understood for the ease of those skilled in the art, in the following with reference to the drawings and specific embodiments to this reality
It is described in further details with novel, following be merely exemplary does not limit the protection scope of the utility model.
A kind of condensation unit for alternating temperature cabinet described in the utility model, as shown in Figure 1, including that middle cryogenic refrigeration is compressed
Machine 1, condenser 2 and evaporating heat exchanger 6, evaporating heat exchanger 6 include the refrigerant side for placing refrigerant and the load for placing refrigerating medium
Cryogen side, in the present embodiment, it is refrigerating medium side that the right side of evaporating heat exchanger 6, which is refrigerant side, left side,；The condenser 2 it is defeated
Entrance is connect with the delivery outlet of middle cryogenic refrigeration compressor 1, and the refrigerant delivery outlet of condenser 2 passes through freezing restricting element 4 and cold
Hiding restricting element 5 is connected to the refrigerant side entrance 8 of evaporating heat exchanger 6, and the refrigerant side outlet 9 of evaporating heat exchanger 6 is low in
The input port of warm refrigeration compressor 1 connects, and forms refrigeration cycle.When needing to freeze, freezing restricting element 4 works, will
The refrigerating medium of 6 refrigerating medium side of evaporating heat exchanger is down to cryogenic temperature；When needing to refrigerate, refrigeration restricting element 5 works, and will evaporate
The refrigerating medium of 6 refrigerating medium side of heat exchanger is down to refrigerated storage temperature.
It further, further include the condensation fan 3 to radiate to condenser 2, the motor of the condensation fan 3 is using cover
One of electromechanical machine, inner rotor motor or external rotor electric machine.
The present embodiment is preferred, and the refrigerating medium is water-soluble using sodium chloride salt aqueous solution, calcium chloride salt aqueous solution, ethylene glycol
Liquid, aqueous solution of propylene glycol or anti-icing fluid etc. are one such.
The present embodiment is preferred, and the middle cryogenic refrigeration compressor 1 is using cryogenic refrigeration compressor in totally enclosed type；Its structure
Form can be horizontal type structure using one of reciprocating, rolling rotor-type or vortex, the middle cryogenic refrigeration compressor 1
Or vertical structure, the middle cryogenic refrigeration compressor 1 are fixed frequency or frequency conversion.
The refrigerant that the middle cryogenic refrigeration compressor 1 uses are as follows: R134a, R404A, R22, R407C, R410A or R290
Etc. one such.
The present embodiment is preferred, and the condenser 2 is using one of pipe type, parallel flow type, corrugated tube type or micropassage type.
The present embodiment is preferred, the freezing restricting element 4 and refrigeration restricting element 5 using capillary, heating power expansion valve or
One of electric expansion valve.
The present embodiment is preferred, and the structure of the evaporating heat exchanger 6 changes one of formula, bushing type or shell-tube type using plate；
The material of evaporating heat exchanger 6 can use metal or nonmetallic.
Another embodiment of the utility model, additionally provides a kind of cryogenic refrigerating system, including condensation described above
Unit further includes circulating pump 7 and heat exchanger 10, and heat exchanger 10 is set in alternating temperature cabinet, dotted line frame table shown in Fig. 1
Show inside alternating temperature cabinet, refrigerating medium is placed in the heat exchanger 10, and the refrigerating medium side of evaporating heat exchanger 6 passes through circulating pump 7 and heat
The connection of exchanger 10 forms circulation loop.The refrigerating medium circulation heat exchange cooling flowed in heat exchanger 10, uses according to user
It is required that make alternating temperature cabinet reach refrigeration 2 to 7 DEG C or -18 to -25 DEG C, reach a cabinet body can freeze, cold storage temperature variable use.
Further, the evaporating fan 11 for radiating to heat exchanger 10 is also set up in alternating temperature cabinet, it is general to evaporate
Fan 11 is to face the setting of heat exchanger 10.
The present embodiment is preferred, and the circulating pump 7 uses one of alternating current positive displacement pump or direct current positive displacement pump, using straight
Brushed DC motor or brshless DC motor can be used in the circulating pump of galvanic electricity.
Above only describes the basic principle of the utility model and preferred embodiment, those skilled in the art can be according to above-mentioned
Many changes and improvements are made in description, these changes and improvements should belong to the protection scope of the utility model.
Claims (10)
1. a kind of condensation unit for alternating temperature cabinet, which is characterized in that including middle cryogenic refrigeration compressor (1), condenser (2) and
Evaporating heat exchanger (6), evaporating heat exchanger (6) include the refrigerant side for placing refrigerant and the refrigerating medium side for placing refrigerating medium；Institute
The input port for stating condenser (2) is connect with the delivery outlet of middle cryogenic refrigeration compressor (1), and the refrigerant delivery outlet of condenser (2) is logical
It crosses freezing restricting element (4) and refrigerates the refrigerant side entrance (8) that restricting element (5) are connected to evaporating heat exchanger (6), evaporation is changed
The refrigerant side outlet (9) of hot device (6) is connect with the input port of middle cryogenic refrigeration compressor (1), forms refrigeration cycle.
2. condensation unit according to claim 1, which is characterized in that further include the condensation radiated to condenser (2)
Blower (3).
3. condensation unit according to claim 1, which is characterized in that the middle cryogenic refrigeration compressor (1) is using full envelope
Cryogenic refrigeration compressor in enclosed.
4. condensation unit according to claim 1, which is characterized in that the condenser (2) uses pipe type, concurrent flow
One of formula, corrugated tube type or micropassage type.
5. condensation unit according to claim 2, which is characterized in that the motor of the condensation fan (3) is electromechanical using cover
One of machine, inner rotor motor or external rotor electric machine.
6. condensation unit according to claim 1, which is characterized in that the freezing restricting element (4) and refrigeration throttling member
Part (5) is using one of capillary, heating power expansion valve or electric expansion valve.
7. condensation unit according to claim 1, which is characterized in that the structure of the evaporating heat exchanger (6) is changed using plate
One of formula, bushing type or shell-tube type.
8. a kind of cryogenic refrigerating system, which is characterized in that including the described in any item condensation units of claim 1-7, further include
Circulating pump (7) and heat exchanger (10), the heat exchanger (10) is interior to place refrigerating medium, the refrigerating medium side of evaporating heat exchanger (6)
It connect to form circulation loop with heat exchanger (10) by circulating pump (7).
9. cryogenic refrigerating system according to claim 8, which is characterized in that further include for being carried out to heat exchanger (10)
The evaporating fan (11) of heat dissipation.
10. cryogenic refrigerating system according to claim 8, which is characterized in that the circulating pump (7) uses alternating current volume
One of pump or direct current positive displacement pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821568792.2U CN209085104U (en) | 2018-09-26 | 2018-09-26 | Condensation unit, cryogenic refrigerating system for alternating temperature cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821568792.2U CN209085104U (en) | 2018-09-26 | 2018-09-26 | Condensation unit, cryogenic refrigerating system for alternating temperature cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN209085104U true CN209085104U (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821568792.2U Active CN209085104U (en) | 2018-09-26 | 2018-09-26 | Condensation unit, cryogenic refrigerating system for alternating temperature cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983745A (en) * | 2021-04-26 | 2022-01-28 | 江苏弗特尔制冷设备有限公司 | Modularized efficient multipurpose refrigeration equipment and ice-making refrigeration process |
-
2018
- 2018-09-26 CN CN201821568792.2U patent/CN209085104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983745A (en) * | 2021-04-26 | 2022-01-28 | 江苏弗特尔制冷设备有限公司 | Modularized efficient multipurpose refrigeration equipment and ice-making refrigeration process |
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