CN105222394B - A kind of Auto-cascade cycle vortex tube Cryo Refrigerator - Google Patents
A kind of Auto-cascade cycle vortex tube Cryo Refrigerator Download PDFInfo
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- CN105222394B CN105222394B CN201510611599.7A CN201510611599A CN105222394B CN 105222394 B CN105222394 B CN 105222394B CN 201510611599 A CN201510611599 A CN 201510611599A CN 105222394 B CN105222394 B CN 105222394B
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Abstract
Auto-cascade cycle vortex tube Cryo Refrigerator, including generator, condenser, vortex tube, gas-liquid separator, condenser/evaporator, subcooler, evaporator and injector, generator are contacted with injector, condenser, gas-liquid separator, vortex tube order successively；Contacted with condenser/evaporator, subcooler, evaporator order in vortex tube hot junction；Vortex tube cold end is connected with subcooler；The outlet of gas-liquid separator divides two-way, wherein all the way first with after condenser/evaporator series winding again respectively with the outlet of condenser/evaporator, subcooler and evaporator and even after import injector；The another way of gas-liquid separator outlet is connected with generator；Refrigeration machine energy-conservation, consumption reduction, environmental protection.
Description
Technical field
The present invention relates to a kind of refrigeration machine, is specifically a kind of Auto-cascade cycle vortex tube Cryo Refrigerator.
Background technology
As social economy is fast-developing, can be discharged in the production processes such as bioengineering, pharmacy, food processing and chemical industry
A large amount of waste heats, residual heat resources are sufficient, but energy density is low, and capacity usage ratio is low, causes energy waste and environmental pollution.
Vortex tube is one simple in construction, has the device of energy separation characteristic.After high-pressure fluid enters vortex tube, by whirlpool
Nozzle decompressing speed-increasing in flow tube, then rotated in minor air cell's high speed, two different parts of temperature be divided into end tube,
That is cryogen and high temperature fluid.Marginal portion outflow of the high temperature fluid by hot junction regulating valve, cryogen collision hot junction are adjusted
Section valve backflows behind centre, is flowed out from minor air cell at cold aperture plate center hole.Vortex tube refrigeration can use water vapour, nitrogen,
Carbon dioxide or hydrogen fluorohydrocarbon class material do refrigeration working medium, thus vortex tube refrigeration have the characteristics that energy-conserving and environment-protective meet the whole world can
Sustainable development strategy requirement.Vortex tube energy separation phenomenon is found by French metallurgical engineer Ranque, is applied in 1932
United States Patent (USP).1933, he did relevant vortex tube device and its vortex temperature separation effect in French Engineering Thermophysics meeting
The report answered, because this report is by the confusion of concepts of fluid stagnation temperature (stagnation temperature) and static temperature, by the generally query of participant,
Vortex tube did not cause the common concern of researcher at that time.Nineteen forty-six, roentgen R.Hilsch from physical arrangement and
The many-side such as working condition is studied vortex tube, it was demonstrated that vortex tube is implicitly present in Energy separation performance, and proposes tentatively to determine
The method of adopted refrigeration effect and heating effect, cause the extensive concern of scholars.
And with being deepened continuously to vortex tube refrigeration heating study mechanism, vortex tube application is further deepened.1987,
Bruno once counted application nearly 10000 of the vortex tube in various distinct temperature control fields.On the whole, vortex tube is main
For freeze and separate etc., but there is the problems such as refrigerating efficiency is relatively low in conventional vortex tube kind of refrigeration cycle.
In order to effectively produce high-grade cryogenic temperature using higher temperature low-grade heat source, scholars will voluntarily overlapping system
SAPMAC method general principle is applied to kind of refrigeration cycle, to solve the defects such as the refrigerating efficiency of conventional refrigeration is low.Chen Guangming is carried
Go out auto-cascade absorption refrigeration system as depicted in figs. 1 and 2, preliminary theory result shows that two kind of refrigeration cycle can be transported efficiently
OK, and relatively low cryogenic temperature can be obtained, but the pressure difference that auto-cascade absorption refrigeration is circulated between Chinese generator and evaporator is larger,
Cause solution circulating ratio high, solution pump conveying solution power consumption is big.In order to solve auto-cascade absorption refrigeration circulation energy consumption and
Efficiency, introduces injector in absorption refrigeration cycle, and injection absorbent refrigeration system can effectively utilize low-grade low-temperature heat source
(more than 60 DEG C), and the consumption of working medium circulating pump mechanical work is seldom.
Found through retrieval, application publication number is that CN102620461A Chinese patent discloses a kind of auto-cascade injection formula system
Cold, but technical scheme disclosed in this document does not have the effective utilization considered to low-grade heat source, and the kind of refrigeration cycle
Middle wasted work is larger.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of energy-conservation, consumption reduction, environmentally friendly Auto-cascade cycle vortex tube-injection
Cryo Refrigerator.
The present invention solves the technical scheme of above technical problem：
A kind of Auto-cascade cycle vortex tube-injection Cryo Refrigerator, including generator, condenser, vortex tube, gas-liquid separator,
Condenser/evaporator, subcooler, evaporator and injector, wherein：Outlet the first import with injector, cold successively of generator 1
The import of condenser, the first import of gas-liquid separator, the import of vortex tube order are contacted；Vortex tube hot junction exports and condensation evaporation
The import of device first, the import of subcooler first, evaporator order are contacted；Vortex tube cold side outlet and subcooler the second import phase
Even；The second outlet of gas-liquid separator divides two-way, wherein all the way first with the import of condenser/evaporator second series winding after again with subcooler
The import of injector second is imported after second outlet and evaporator outlet and company；The another way and hair of gas-liquid separator second outlet
Raw device entrance is connected.
AutoRefrigeration Cascade system basic theories is used for jet refrigeration circulation by this patent, is driven using low-grade low-temperature heat source
Dynamic and the less mechanical work of working medium circulating pump consumption can realize cryogenic freezing, enrich jet refrigeration circulation scientific theory,
Effectively to provide one using the application of low-grade low-temperature heat source, saving high-grade energy, expansion jet refrigeration circulation
The brand-new thinking of bar.
The technical scheme that this method further limits as：
Further, the outlet of generator is connected with the first import of injector, injector outlet and the import of condenser
It is connected, condensator outlet is connected with gas-liquid separator, and gas-liquid separator first outlet is connected with vortex tube import, vortex tube hot junction
Gas vent is connected with the import of condenser/evaporator first, and condenser/evaporator first outlet is connected with the import of subcooler first, supercooling
Device first outlet is connected with evaporator, and vortex tube cold end gas vent is connected with the import of subcooler second；Gas-liquid separator
Second outlet divides two-way, wherein a way outlet is connected with the import of condenser/evaporator second, condenser/evaporator second outlet, subcooler
The import of injector second is imported after second outlet and evaporator outlet and company, another way outlet and the generator of gas-liquid separator enter
Mouth is connected.
Further, in addition to first throttle valve, second throttle, the 3rd choke valve and circulating pump；Vortex tube hot junction gas
Body outlet is connected with second throttle import, and second throttle outlet is connected with the import of condenser/evaporator first；Subcooler first
Outlet is connected with first throttle valve import, and first throttle valve outlet is connected with evaporator；Gas-liquid separator second outlet its
In a way outlet be connected with the 3rd choke valve import, the 3rd throttling valve outlet be connected with the import of condenser/evaporator second；Gas-liquid point
Another way outlet from device is connected with pump inlet, and circulating-pump outlet is connected with generator inlet.
Further, the working medium filled in the refrigeration machine is non-azeotropic mixed working medium.Non-azeotropic mixed working medium does not have azeotropic
Point.When evaporating or condense at a certain temperature, gas phase is different with the composition of liquid phase, from saturated liquid to two-phase section, until complete
Portion's evaporation is completed, and its temperature is constantly changing always.
Further, non-azeotropic mixed working medium forms non-azeotropic mixed working medium or R23-R134a by R744-R134a
Formed non-azeotropic mixed working medium.
Further, R744 and R134a is 35 by weight percentage:65.
Further, R23-R134a is 40 by weight percentage:60.
Beneficial effects of the present invention are：(1) auto-cascade refrigeration principle and ejector refrigeration principle are combined, in injection refrigerating system
The middle refrigeration working medium for introducing boiling point and differing larger, can not only realize the efficient utilization of low-grade energy, and enrich injection system
Cold theory.
(2) this patent applies vortex tube in enclosed injection refrigerating system, recycles vortex tube cold end cryogenic gas
Cold and hot junction high-temperature gas heat, compared with conventional spray kind of refrigeration cycle, energy-saving effect is obvious.
(3) vortex tube is introduced in new circulation, the expansion work of refrigerant throttling process, reduces throttling in abundant recovery system
Loss, it can effectively reduce cryogenic temperature, improve circularly cooling coefficient and refrigerating effect per unit swept volume.
Brief description of the drawings
Fig. 1 is voluntarily overlapping absorption refrigeration cycle schematic diagram；
Fig. 2 is voluntarily overlapping diffusion absorption kind of refrigeration cycle schematic diagram；
Fig. 3 is the flowage structure schematic diagram of the present invention；
In figure：Generator 1, condenser 2, vortex tube 3, gas-liquid separator 4, condenser/evaporator 5, subcooler 6, evaporator 7,
Injector 8, working medium pump 9, first throttle valve 10, the choke valve 12 of second throttle 11 and the 3rd.
Embodiment
Embodiment 1
The Auto-cascade cycle vortex tube Cryo Refrigerator that the present embodiment provides, as shown in figure 1, including generator 1, condenser 2, whirlpool
Flow tube 3, gas-liquid separator 4, condenser/evaporator 5, subcooler 6, evaporator 7, injector 8, circulating pump 9, first throttle valve 10,
Two choke valves 11 and the 3rd choke valve 12；Wherein, the outlet of generator 1 is connected with the first import of injector 8, and injector 8 goes out
Mouth is connected with condenser 2, and the outlet of condenser 2 is connected with gas-liquid separator 4, the first outlet of gas-liquid separator 4 and the import of vortex tube 3
It is connected, the hot junction gas vent of vortex tube 3 is connected with the import of second throttle 11, the outlet of second throttle 11 and condenser/evaporator 5
First import is connected, and the first outlet of condenser/evaporator 5 is connected with the import of subcooler 6 first, the first outlet of subcooler 6 and first segment
The stream import of valve 10 is connected, and the outlet of first throttle valve 10 is connected with the import of evaporator 7, the cold end gas vent of vortex tube 3 and subcooler 6
Second import is connected, and the second outlet of gas-liquid separator 4 divides two-way, wherein a way outlet is connected with the import of the 3rd choke valve 12, the
Three choke valves 12 outlet is connected with the import of condenser/evaporator 5 second, the second outlet of condenser/evaporator 5, the second outlet of subcooler 6 and
Evaporator 7 exports and imports the import of injector 8 second, another way outlet and the entrance phase of generator 1 of gas-liquid separator 4 after connecting
Even.
In the present embodiment, using R744 and R134a, (percentage by weight is 35:65) exemplified by forming non-azeotropic mixed working medium,
Illustrate its operation principle.Liquid refrigerant (key component is that R134a, R744 constituent content are less) is heated in generator 1
Vaporization, working gas is used as into injector 8, the refrigerant that injection comes flash-pot 7, subcooler 6 and condenser/evaporator 5 steams
Vapour, it is high pressure conditions superheated refrigerant mixed vapour in the exit gas of injector 8 after the mixing supercharging of injector 8, condensed device
Enter gas-liquid separator 4 after 2 heat exchange, outflow gas-liquid separator 4 liquid refrigerant (main component higher boiling refrigerant R134a with
A small amount of low boiling point refrigerant R744) it is divided into two-way, generator 1 is sent into through circulating pump 9 all the way, another way is entered through the 3rd choke valve 12
Enter condenser/evaporator 5, carry out the refrigeration with coming flash-pot 7 and subcooler 6 after heat exchange with the hot junction gas of vortex tube 3 herein
Agent converges the ejection gas together as injector 8, the vapor phase refrigerant main component low boiling point refrigerant after separating in addition
R744 and a small amount of higher boiling refrigerant R134a, hot junction gas and cold end gas are separated into vortex tube 3, hot junction gas exists
After heat exchange being carried out in condenser/evaporator 5 with the Partial Liquid Phase refrigerant from gas-liquid separator 4, the hot junction gas after cooling
Into subcooler 6, heat exchange is carried out with the cold end gas of vortex tube 3 herein, the low boiling point refrigerant after supercooling is through first throttle
Enter evaporator 7 after the reducing pressure by regulating flow of valve 10, sweat cooling, carry out the refrigerant vapour of flash-pot 7 and after the heat exchange of subcooler 6
Vortex tube cold end gas converges the ejection gas with higher boiling refrigerant vapour together as injector 8 afterwards, repeats above-mentioned circulation
Cyclic process.
The outstanding feature of the present invention has：1. according to thermodynamic principles and cascaded utilization of energy principle, vortex tube is made full use of
The cold and hot amount of low-grade the cold end cold and hot junction gas produced, realizes highly effective refrigeration；2. in traditional injection refrigerating system
Introduce high lower boiling binary refrigeration working medium and auto-cascade refrigeration is theoretical, relatively low cryogenic temperature can be obtained；3. introduce vortex tube
The restriction loss of kind of refrigeration cycle can be effectively reduced, is advantageous to improve circularly cooling efficiency；Introducing injector can improve into absorption
Device gas pressure, be advantageous to strengthen solution absorption efficiency.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domains of application claims.
Claims (7)
1. Auto-cascade cycle vortex tube Cryo Refrigerator, including generator, condenser, vortex tube, gas-liquid separator, condenser/evaporator,
Subcooler, evaporator and injector, it is characterised in that：The outlet of generator the first import with injector, condenser successively
Import, the import of gas-liquid separator, the import of vortex tube order are contacted；The outlet of vortex tube hot junction is entered with condenser/evaporator first
Mouth, the import of subcooler first, evaporator order are contacted；Vortex tube cold side outlet is connected with the import of subcooler second；Gas-liquid
The liquid refrigerant outlet of separator divides two-way, wherein all the way first with the import of condenser/evaporator second series winding after again respectively with condensation
The import of injector second is imported after evaporator second outlet, subcooler second outlet and evaporator outlet and company；Gas-liquid separation
The another way of the liquid refrigerant outlet of device is connected with generator inlet.
2. Auto-cascade cycle vortex tube Cryo Refrigerator according to claim 1, it is characterised in that：The outlet and injection of generator
First import of device is connected, and injector outlet is connected with the import of condenser, and condensator outlet is connected with gas-liquid separator, gas-liquid
Separator first outlet is connected with vortex tube import, and vortex tube hot junction gas vent is connected with the import of condenser/evaporator first, cold
Solidifying evaporator first outlet is connected with the import of subcooler first, and subcooler first outlet is connected with evaporator, and vortex tube is cold
End gas vent is connected with the import of subcooler second；Gas-liquid separator second outlet divides two-way, wherein a way outlet steams with condensation
The hair import of device second is connected, and injection is imported after condenser/evaporator second outlet, subcooler second outlet and evaporator outlet and company
The import of device second, another way outlet of gas-liquid separator second outlet are connected with generator inlet.
3. Auto-cascade cycle vortex tube Cryo Refrigerator according to claim 2, it is characterised in that：Also include first throttle valve,
Second throttle, the 3rd choke valve and circulating pump；Vortex tube hot junction gas vent is connected with second throttle import, the second throttling
Valve outlet is connected with the import of condenser/evaporator first；Subcooler first outlet is connected with first throttle valve import, first throttle valve
Outlet is connected with evaporator；A gas-liquid separator second outlet wherein way outlet is connected with the 3rd choke valve import, and the 3rd
Throttling valve outlet is connected with the import of condenser/evaporator second；Another way outlet and pump inlet of gas-liquid separator second outlet
It is connected, circulating-pump outlet is connected with generator inlet.
4. Auto-cascade cycle vortex tube Cryo Refrigerator according to claim 2, it is characterised in that：The work filled in the refrigeration machine
Matter is non-azeotropic mixed working medium.
5. Auto-cascade cycle vortex tube Cryo Refrigerator according to claim 4, it is characterised in that：The non-azeotropic mixed working medium
Non-azeotropic mixed working medium is formed by R744-R134a or R23-R134a or R32-R134a.
6. Auto-cascade cycle vortex tube Cryo Refrigerator according to claim 5, it is characterised in that：The R744 and R134a are pressed
Percentage by weight is calculated as 35:65.
7. Auto-cascade cycle vortex tube Cryo Refrigerator according to claim 5, it is characterised in that：The R23-R134a is by weight
It is 40 to measure percentages:60.
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| CN201510611599.7A CN105222394B (en) | 2015-09-23 | 2015-09-23 | A kind of Auto-cascade cycle vortex tube Cryo Refrigerator |
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| CN201510611599.7A CN105222394B (en) | 2015-09-23 | 2015-09-23 | A kind of Auto-cascade cycle vortex tube Cryo Refrigerator |
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| CN105222394B true CN105222394B (en) | 2018-01-16 |
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| CN105627622B (en) * | 2016-03-23 | 2018-08-21 | 上海海洋大学 | A kind of tuna clipper waste heat recovery injecting type auto-cascading refrigeration system |
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|---|---|---|---|---|
| RU2111424C1 (en) * | 1995-12-21 | 1998-05-20 | Акционерное общество открытого типа "Ликинский автобусный завод" | Thermoelectric refrigerator for transport facility |
| CN101464069A (en) * | 2007-12-18 | 2009-06-24 | 王海 | Thermal injection and vortex flow combined air conditioner |
| CN101963432A (en) * | 2010-11-01 | 2011-02-02 | 江苏天舒电器有限公司 | Freezing and refrigerating device with hot water supply |
| CN102252446A (en) * | 2011-07-08 | 2011-11-23 | 浙江大学 | Ejector-based vortex pipe refrigeration system |
| CN104676943A (en) * | 2015-01-05 | 2015-06-03 | 西安交通大学 | CO2 high-temperature heat pump system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013036684A (en) * | 2011-08-08 | 2013-02-21 | Fujitsu General Ltd | Refrigeration cycle device |
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- 2015-09-23 CN CN201510611599.7A patent/CN105222394B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2111424C1 (en) * | 1995-12-21 | 1998-05-20 | Акционерное общество открытого типа "Ликинский автобусный завод" | Thermoelectric refrigerator for transport facility |
| CN101464069A (en) * | 2007-12-18 | 2009-06-24 | 王海 | Thermal injection and vortex flow combined air conditioner |
| CN101963432A (en) * | 2010-11-01 | 2011-02-02 | 江苏天舒电器有限公司 | Freezing and refrigerating device with hot water supply |
| CN102252446A (en) * | 2011-07-08 | 2011-11-23 | 浙江大学 | Ejector-based vortex pipe refrigeration system |
| CN104676943A (en) * | 2015-01-05 | 2015-06-03 | 西安交通大学 | CO2 high-temperature heat pump system |
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