CN105066508B - A kind of efficient injection absorption refrigerating machine for freezing and refrigeration - Google Patents
A kind of efficient injection absorption refrigerating machine for freezing and refrigeration Download PDFInfo
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- CN105066508B CN105066508B CN201510466726.9A CN201510466726A CN105066508B CN 105066508 B CN105066508 B CN 105066508B CN 201510466726 A CN201510466726 A CN 201510466726A CN 105066508 B CN105066508 B CN 105066508B
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 45
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 28
- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 238000007710 freezing Methods 0.000 title claims abstract description 10
- 230000008014 freezing Effects 0.000 title claims abstract description 10
- 239000000243 solution Substances 0.000 claims abstract description 192
- 230000008676 import Effects 0.000 claims abstract description 128
- 239000006096 absorbing agent Substances 0.000 claims abstract description 87
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 238000011084 recovery Methods 0.000 claims abstract description 49
- 239000003507 refrigerant Substances 0.000 claims description 55
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 239000012071 phase Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 9
- 239000002250 absorbent Substances 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims description 5
- 238000004781 supercooling Methods 0.000 claims description 5
- 239000007791 liquid phase Substances 0.000 claims description 4
- 239000012808 vapor phase Substances 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 239000002608 ionic liquid Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 47
- 238000001816 cooling Methods 0.000 description 10
- 238000000926 separation method Methods 0.000 description 6
- 230000002745 absorbent Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- 238000005728 strengthening Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 210000004243 sweat Anatomy 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- IQQRAVYLUAZUGX-UHFFFAOYSA-N 1-butyl-3-methylimidazolium Chemical compound CCCCN1C=C[N+](C)=C1 IQQRAVYLUAZUGX-UHFFFAOYSA-N 0.000 description 1
- NJMWOUFKYKNWDW-UHFFFAOYSA-N 1-ethyl-3-methylimidazolium Chemical compound CCN1C=C[N+](C)=C1 NJMWOUFKYKNWDW-UHFFFAOYSA-N 0.000 description 1
- QMMZSJPSPRTHGB-UHFFFAOYSA-N MDEA Natural products CC(C)CCCCC=CCC=CC(O)=O QMMZSJPSPRTHGB-UHFFFAOYSA-N 0.000 description 1
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- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- 230000008020 evaporation Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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Abstract
A kind of efficient injection absorption refrigerating machine for freezing and refrigeration, including generator, condenser, gas-liquid separator, Subcooled heat recovery device, evaporator, injector, vortex tube, absorber, solution heat exchanger；The one outlet of generator is divided at least two-way, and the first via is connected with injector, and the second tunnel is contacted with condenser, gas-liquid separator, Subcooled heat recovery device, evaporator, absorber order successively；Contacted successively with injector, vortex tube import order the outlet of gas-liquid separator, contacted successively with solution heat exchanger, absorber order the outlet of vortex tube hot junction, vortex tube cold side outlet is contacted with Subcooled heat recovery device, solution heat exchanger, absorber order successively, and absorber, solution heat exchanger, generator, solution heat exchanger, absorber order are contacted；The system creates the low temperature environment needed for production process by being vortexed pipe inspection absorption refrigeration cycle, has not only improved efficiency of energy utilization but also has saved high-grade electric energy.
Description
Technical field
It is specifically a kind of efficient injection absorption refrigeration for freezing and refrigeration the present invention relates to a kind of refrigeration system
Machine.
Background technology
As social economy is fast-developing, it can be discharged in the production processes such as bioengineering, pharmacy, food processing and chemical industry
A large amount of waste heats, this used heat, residual heat resources are sufficient, but energy density is low, energy can directly utilization rate it is low, cause the energy unrestrained
Take and environmental pollution.In traditional refrigeration system, pressurized refrigeration working medium is expanded after condenser by choke valve,
Heat absorption produces refrigeration in evaporator.Choke valve has compared with dominance energy for liquid throttling, still, for gas throttling,
Its operating efficiency is relatively low, causes the hydraulic performance decline for the refrigeration plant that refrigeration working medium is gas, therefore can not utilize used heat, waste heat etc.
Low-grade energy carrys out work；In this case, absorption refrigeration technology is developed, and absorption refrigeration technology is to utilize some tools
The working medium pair for the matter that has specific characteristics, absorption and release by a kind of material to another material produce the state change of material, from
And with heat absorption and exothermic process, the circulation has higher thermal conversion efficiency, solar heat, underground heat and work can be effectively utilized
The low-grade energies such as a large amount of waste heat used heat produced in industry production process produce institute's chilling requirement, can effectively save high-grade electric energy；
But conventional suction refrigeration system defect such as fluctuation of service when there is low refrigerating efficiency, heat source insufficiency.Vortex tube refrigeration is one
The refrigeration modes driven using low-grade heat source are planted, effectively solar heat, underground heat and industrial exhaust heat, used heat etc. can be utilized low-grade
Thermal source；Vortex tube refrigeration can do refrigeration working medium using water vapour, nitrogen, carbon dioxide or hydrogen fluorohydrocarbon class material, so vortex
Control it is cold have energy-conserving and environment-protective the features such as meet Global Sustainable Development strategic requirement.Vortex tube refrigeration is by French metallurgical engineer
Ranque design inventions, United States Patent (USP) was applied in 1932.1933, he did relevant whirlpool in French Engineering Thermophysics meeting
The report of flow duct facility and its vortex temperature distribution function, because this report is by the concept of fluid stagnation temperature (stagnation temperature) and static temperature
Obscure, by the generally query of participant, vortex tube did not cause the common concern of researcher at that time.Nineteen forty-six, German thing
Neo-confucian R.Hilsch is studied vortex tube from the many-side such as physical arrangement and working condition, it was demonstrated that vortex tube is implicitly present in
Energy separation performance, and preliminary definition refrigeration effect and the method for heating effect are proposed, cause the extensive concern of scholars.
Zhejiang University Wang Zheng et al. proposes that a kind of utilization injector improves the refrigerating system of swirl control cold efficiency, Shen
Please number be 201110191813.X, in application material, applicant to the system have been thermodynamic analysis, as a result show introduce
The refrigerating system performance of injector and vortex tube is better than common refrigeration system and flashed vapour the bypass two-stage for introducing injector
Compression refrigerating system, but be not difficult to find out from file, above-mentioned vortex tube compression-type refrigeration circulates the low temperature obtained completely to disappear
High-grade mechanical energy is consumed for cost and refrigeration system is open system mostly.
The content of the invention
The goal of the invention to be realized of the invention is：Overcome the problem of prior art is present cold for freezing there is provided one kind
The efficient injection absorption refrigerating machine hidden, the low temperature ring needed for production process is created by vortex tube-injection absorption refrigeration cycle
Border, had not only improved efficiency of energy utilization but also had saved high-grade electric energy.
To achieve the above object, technical scheme is as follows：A kind of efficient injection for freezing and refrigeration absorbs system
Cold, including generator, condenser, gas-liquid separator, Subcooled heat recovery device, evaporator, injector, vortex tube, absorber, solution
Heat exchanger；The one outlet of generator is divided at least two-way, and the first via is connected with injector, the second tunnel successively with condenser,
Gas-liquid separator, Subcooled heat recovery device, evaporator, absorber order are contacted；The outlet of gas-liquid separator successively with injector, vortex
Pipe import order is contacted, and the outlet of vortex tube hot junction is contacted with solution heat exchanger, absorber order successively, vortex tube cold side outlet
Successively with Subcooled heat recovery device, solution heat exchanger, absorber order contact, the absorber, solution heat exchanger, generator,
Solution heat exchanger, absorber order are contacted.
The technical scheme that further limits of the present invention as：
Further, the first outlet of generator is divided into two-way, and the first via is connected with the import of injector first, the second tunnel with
The import of condenser first be connected, condenser first outlet is connected with gas-liquid separator import, the first outlet of gas-liquid separator and
The import of Subcooled heat recovery device first is connected, and Subcooled heat recovery device first outlet is connected with evaporator, evaporator outlet and absorber
First import is connected, and gas-liquid separator second outlet is connected with the import of injector second, injector outlet and vortex tube import phase
Even, vortex tube hot junction outlet is connected with the first import of solution heat exchanger, solution heat exchanger first outlet and absorber the
Four imports are connected, and vortex tube cold side outlet is connected with the import of Subcooled heat recovery device second, Subcooled heat recovery device second outlet and solution heat
The import of exchanger second is connected, and solution heat exchanger second outlet is connected with the import of absorber second, the first outlet of absorber
It is connected with solution heat exchanger triple feed inlet, the 3rd outlet of solution heat exchanger is connected with generator import, generator second
Outlet is connected with the import of solution heat exchanger the 4th, and the outlet of solution heat exchanger the 4th is connected with absorber triple feed inlet.
Further, in addition to solution pump, solution regulating valve, second throttle, the first outlet and solution pump of absorber
Import be connected, solution pump discharge is connected with solution heat exchanger triple feed inlet, solution heat exchanger the 4th outlet and solution tune
Save valve import to be connected, solution regulation valve outlet is connected with absorber triple feed inlet；Subcooled heat recovery device first outlet and the second throttling
Valve import is connected, and second throttle outlet is connected with evaporator.
The invention discloses another refrigeration system, including generator, condenser, gas-liquid separator, Subcooled heat recovery device steams
Send out device, injector, vortex tube, absorber, solution heat exchanger；The one outlet of generator is divided into two-way, all the way with injector
Contacted successively with condenser, gas-liquid separator, Subcooled heat recovery device, evaporator, absorber order on connection, another road；Gas-liquid separation
Device is in parallel with evaporator to import injector；Injector outlet is connected with vortex tube successively；Vortex tube hot junction is exported hands over solution heat
Parallel operation, absorber order are contacted, and vortex tube cold side outlet is contacted with Subcooled heat recovery device, solution heat exchanger, absorber order, institute
Absorber, solution heat exchanger, generator, solution heat exchanger, absorber order is stated to contact.
The technical scheme that further limits of the present invention as：
Further, the first outlet of generator is divided into two-way, and the first via is connected with the import of injector first, the second tunnel with
The import of condenser first be connected, condenser first outlet is connected with gas-liquid separator import, the first outlet of gas-liquid separator and
The import of Subcooled heat recovery device first is connected, and Subcooled heat recovery device first outlet is connected with evaporator, and evaporator first outlet is with inhaling
Receive the import of device first to be connected, evaporator second outlet converges rear and injector the second import phase with gas-liquid separator second outlet
Even, injector outlet is connected with vortex tube import, and the outlet of vortex tube hot junction is connected with the first import of solution heat exchanger, solution
Heat exchanger first outlet is connected with the import of absorber the 4th, and vortex tube cold side outlet is connected with the import of Subcooled heat recovery device second,
Subcooled heat recovery device second outlet is connected with the import of solution heat exchanger second, solution heat exchanger second outlet and absorber second
Import be connected, the first outlet of absorber is connected with solution heat exchanger triple feed inlet, solution heat exchanger the 3rd export and
Generator import is connected, and generator second outlet is connected with the import of solution heat exchanger the 4th, and solution heat exchanger the 4th is exported
It is connected with absorber triple feed inlet.
Further, in addition to solution pump, solution regulating valve, second throttle and the 3rd choke valve, the first of absorber
Outlet is connected with the import of solution pump, and solution pump discharge is connected with solution heat exchanger triple feed inlet；Solution heat exchanger the 4th
Outlet is connected with solution regulating valve import, and solution regulation valve outlet is connected with absorber triple feed inlet；Subcooled heat recovery device first goes out
Mouth is connected with second throttle import, and second throttle outlet is connected with evaporator；Gas-liquid separator second outlet and the
Three choke valve imports are connected, and the 3rd throttling valve outlet is connected after converging with evaporator second outlet with the import of injector second.
In the present invention, inventive refrigeration system can use CO2- ionic liquid, CO2- MDEA, freon-absorbent are (for example
R134a-DMF), one kind in ammoniacal liquor.
Further, condenser (2) is gas cooler.
Vortex tube is a kind of energy separation device simple in construction, be effective ideal style using low-grade heat source it
One, it freezes entirely different with mechanical compression refrigeration circulation, absorption refrigeration cycle mechanism；In view of vortex tube has significant energy
Stalling characteristic, domestic and foreign scholars are directed to refrigerant substitute, vortex tube structure design and vortex tube energy separation mechanism etc. always
Aspect has carried out a large amount of theoretical and experimental studies.
Beneficial effects of the present invention are：1. according to thermodynamic principles and cascaded utilization of energy principle, proposition utilizes vortex tube
The low-grade cold that vortex tube is produced is replaced into high-grade cold by injection composite absorption refrigeration system, is realized between cold grade
Efficiently conversion.2. introducing injector can improve into absorber gas pressure, be conducive to strengthening solution absorption efficiency.3. the present invention
Vortex tube is applied in enclosed injection absorbent refrigeration system, cold and the hot junction for recycling vortex tube cold end cryogenic gas are high
The heat of wet body, that is, utilize refrigerant rich solution of the hot junction high-temperature gas heating from solution heat exchanger of vortex tube；Utilize
Liquid of the cold end cryogenic gas supercooling from gas-liquid separator of vortex tube, makes subcooled liquid, is absorbed with conventional spray
Kind of refrigeration cycle is compared, and the expansion work of refrigerant throttling process in vortex tube, abundant recovery system is introduced in new circulation, reduces section
Stream loss, can effectively reduce cryogenic temperature, improve circularly cooling coefficient and refrigerating effect per unit swept volume.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of an embodiment of the present invention；
Fig. 2 is the schematic flow sheet of another embodiment of the invention.
In figure：Generator 1, condenser (gas cooler) 2, gas-liquid separator 3, Subcooled heat recovery device 4, evaporator 5, injection
Device 6, vortex tube 7, absorber 8, solution heat exchanger 9, solution pump 10, solution regulating valve 11, second throttle 12.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.It should be understood that following be only
It is exemplary, it does not limit the scope of the invention.
Embodiment 1
A kind of efficient injection absorption refrigerating machine for freezing and refrigeration, as shown in figure 1, including generator 1, condenser (gas
Body cooler) 2, gas-liquid separator 3, Subcooled heat recovery device 4, evaporator 5, injector 6, vortex tube 7, absorber 8, solution heat exchange
Device 9, solution pump 10, solution regulating valve 11, second throttle 12；Wherein, the first outlet of generator 1 is divided into two-way, the first via
It is connected with the import of injector 6 first, the second tunnel is connected with the import of condenser (gas cooler) 2 first, condenser (gas cooling
Device) 2 first outlets are connected with the import of gas-liquid separator 3, first outlet and the import of Subcooled heat recovery device 4 first of gas-liquid separator 3
It is connected, the first outlet of Subcooled heat recovery device 4 is connected with the import of evaporator 5, the outlet of evaporator 5 is connected with the import of absorber 8 first, gas
The second outlet of liquid/gas separator 3 is connected with the import of injector 6 second, and the outlet of injector 6 is connected with the import of vortex tube 7, the heat of vortex tube 7
Bring out mouth with the first import of solution heat exchanger 9 to be connected, solution heat exchanger first outlet and the import phase of absorber 8 the 4th
Even, the cold side outlet of vortex tube 7 is connected with the import of Subcooled heat recovery device 4 second, the second outlet of Subcooled heat recovery device 4 and solution heat exchanger
9 second imports be connected, the second outlet of solution heat exchanger 9 is connected with the import of absorber 8 second, the first outlet of absorber 8 and
The triple feed inlet of solution heat exchanger 9 is connected, and the 3rd outlet of solution heat exchanger 9 is connected with the import of generator 1, generator 1 the
Two outlets are connected with the import of solution heat exchanger 9 the 4th, and the outlet of solution heat exchanger 9 the 4th is connected with the triple feed inlet of absorber 8；
The first outlet of absorber 8 is connected with the import of solution pump 10, the outlet of solution pump 10 and the triple feed inlet phase of solution heat exchanger 9
Even, the outlet of solution heat exchanger 9 the 4th is connected with the import of solution regulating valve 11, the outlet of solution regulating valve 11 and absorber 8 the 3rd
Import is connected；The first outlet of Subcooled heat recovery device 4 is connected with the import of second throttle 12, the outlet of second throttle 12 and evaporator 5
Import is connected.
In the present embodiment, working medium uses CO2-[emim][Tf2N] mixed working fluid.The refrigerant rich solution of generator 1 absorbs heat
Source heat (general 80-110 DEG C of temperature) produces high-temperature high-pressure refrigerant steam afterwards, is divided into two-way, all the way as the work of injector 6
Make fluid, another road enters gas cooler 2 and cools down heat release, and the cooled water of heat is taken away, the gas-liquid two-phase cold-producing medium after cooling
CO2 enter gas-liquid separator 3, wherein vapor phase refrigerant as the ejection gas of injector 6 by the working gas from generator 1
Enter vortex tube 7 after injection boosting, occur to produce hot junction high-temperature gas and cold end cryogenic gas after temperature separation herein, hot junction is high
Wet body enters absorber 8 in solution heat exchanger 9 after pre- warm refrigerant rich solution, cold end cryogenic gas is in Subcooled heat recovery device 4
Enter solution heat exchanger 9 after middle supercooling refrigerant liquid, (contain a small amount of CO with refrigerant lean solution2[emim] [Tf2N] mix molten
Liquid) heat exchange after enter absorber 8；After liquid phase refrigerant is subcooled in subcooler 4 from the cold end gas of vortex tube 7, through throttling
Valve 12 enters the sweat cooling of evaporator 5 after throttling, and the refrigerant vapour for coming flash-pot 5 and the cold and hot end of vortex tube 7 enters absorption
Device 8 is absorbed by refrigerant lean solution turns into refrigerant rich solution, and solution heat exchanger 9 is pumped into after being pressurizeed through solution pump 10, herein with coming
Carry out entering generator 1 after heat exchange from the high temperature refrigerant lean solution and the hot junction refrigerant gas of vortex tube 7 of generator 1, system
Cryogen rich solution, which is absorbed in generator 1 after heat from heat source produces refrigerant evaporation, turns into refrigerant lean solution, in solution heat exchanger 9
It is middle exchanged heat from the refrigerant rich solution of absorber 8 and through subcooler 4 after refrigerant gas cooling after enter absorber 8, absorb
Carry out the cold and hot end refrigerant vapour of flash-pot 5 and vortex tube 7, so as to complete solution circulation and refrigerant circulation.
The present invention is according to thermodynamic principles and cascaded utilization of energy principle, and proposition is freezed using pipe inspection composite absorption is vortexed
The low-grade cold that vortex tube is produced is replaced into high-grade cold by system, realizes the efficient conversion between cold grade；The system
Vortex tube is applied in enclosed injection absorbent refrigeration system, cold and the hot junction for recycling vortex tube cold end cryogenic gas are high
The heat of wet body, compared with conventional spray absorption refrigeration cycle, novel vortex tube-injection absorbent refrigeration system have COP it is high,
The characteristics of cryogenic temperature is low, energy-saving effect is obvious.The restriction loss of kind of refrigeration cycle can effectively be reduced by introducing vortex tube and injector,
The gas pressure for entering absorber is improved, is conducive to improving circularly cooling efficiency；Introducing injector can improve into absorber gas
Body pressure, is conducive to strengthening solution absorption efficiency.
Embodiment 2
A kind of efficient injection absorption refrigerating machine for freezing and refrigeration, as shown in Fig. 2 including generator 1, condenser (gas
Body cooler) 2, gas-liquid separator 3, Subcooled heat recovery device 4, evaporator 5, injector 6, vortex tube 7, absorber 8, solution heat exchange
Device 9, solution pump 10, solution regulating valve 11, second throttle 12；Wherein, the first outlet of generator 1 is divided into two-way, the first via
It is connected with the import of injector 6 first, the second tunnel is connected with the import of condenser (gas cooler) 2 first, condenser (gas cooling
Device) 2 first outlets are connected with the import of gas-liquid separator 3, first outlet and the import phase of Subcooled heat recovery device 4 first of gas-liquid separator
Even, the first outlet of Subcooled heat recovery device 4 is connected with the import of evaporator 5, and the first outlet of evaporator 5 is connected with the import of absorber 8 first,
The second outlet of evaporator 5 is connected with the second outlet of gas-liquid separator 3 with rear with the import of injector 6 second, injector 6 outlet with
The import of vortex tube 7 is connected, and the outlet of the hot junction of vortex tube 7 is connected with the first import of solution heat exchanger 9, solution heat exchanger first
Outlet is connected with the import of absorber 8 the 4th, and the cold side outlet of vortex tube 7 is connected with the import of Subcooled heat recovery device 4 second, Subcooled heat recovery device
4 second outlets are connected with the import of solution heat exchanger 9 second, the second outlet of solution heat exchanger 9 and the import phase of absorber 8 second
Even, the first outlet of absorber 8 is connected with the triple feed inlet of solution heat exchanger 9, and the 3rd outlet of solution heat exchanger 9 is with occurring
The import of device 1 is connected, and the second outlet of generator 1 is connected with the import of solution heat exchanger 9 the 4th, and solution heat exchanger 9 the 4th is exported
It is connected with the triple feed inlet of absorber 8；The first outlet of absorber 8 is connected with the import of solution pump 10, solution pump 10 outlet with it is molten
The triple feed inlet of liquid heat exchanger 9 is connected；The outlet of solution heat exchanger 9 the 4th is connected with the import of solution regulating valve 11, solution regulation
The outlet of valve 11 is connected with the triple feed inlet of absorber 8；The first outlet of Subcooled heat recovery device 4 is connected with the import of second throttle 12, and second
The outlet of choke valve 12 is connected with the import of evaporator 5, and gas-liquid separator 3 is connected with the 3rd choke valve import, the 3rd throttling valve outlet
It is connected after converging with the second outlet of evaporator 5 with injector 6.
In the present embodiment, working medium uses CO2-[bmim][PF6] it is refrigerant mixtures pair.The refrigerant rich solution of generator 1
Absorb heat from heat source (temperature range is at 280 DEG C -300 DEG C) and produce high-temperature high-pressure refrigerant steam afterwards, be divided into two-way, all the way conduct
The working fluid of injector 6, another road enters gas cooler 2 and cools down heat release, and the cooled water of heat is taken away, the gas-liquid after cooling
Two phase refrigerant CO2Into gas-liquid separator 3, wherein vapor phase refrigerant be depressured through choke valve 13 after with carrying out the system of flash-pot 5
Refrigerant gas is entered vortex tube together as the ejection gas of injector 6 after the working gas injection boosting from generator 1
7, hot junction high-temperature gas and cold end cryogenic gas are produced after temperature separation occurs herein, hot junction high-temperature gas is in solution heat exchanger
Enter absorber 8 in 9 after pre- warm refrigerant rich solution, the system into evaporator 5 is subcooled in cold end cryogenic gas in Subcooled heat recovery device 4
Enter solution heat exchanger 9 after cryogen liquid, (contain a small amount of CO with refrigerant lean solution2[bmim] [PF6] mixed solution) and heat exchange after
Into absorber 8；Liquid phase refrigerant in subcooler 4 by from the cold end gas of vortex tube 7 supercooling after through choke valve 12 throttle into
Enter the sweat cooling of evaporator 5, the refrigerant gas evaporated herein is divided into two-way, wherein all the way with through the reducing pressure by regulating flow of choke valve 13
Refrigerant gas afterwards is together as the ejection gas of injector 6, and another road refrigerant gas is directly entered absorber 8, with whirlpool
The cold and hot end refrigerant gas of flow tube 7 is absorbed by refrigerant lean solution together turns into refrigerant rich solution, is pumped into after being pressurizeed through solution pump 10
Solution heat exchanger 9, carries out heat with the high temperature refrigerant lean solution from generator 1 and the hot junction refrigerant gas of vortex tube 7 herein
Amount enters generator 1 after exchanging, refrigerant rich solution, which absorbs low-grade heat source heat in generator 1 and produces refrigerant and evaporate, to be turned into
Refrigerant lean solution, the refrigerant after being exchanged heat in solution heat exchanger 9 from the refrigerant rich solution of absorber 8 and through subcooler 4
Enter absorber 8 after gas cooling, absorb and come flash-pot 5 and the cold and hot end refrigerant gas of vortex tube 7, followed so as to complete solution
Ring and refrigerant circulation.
The present invention is according to thermodynamic principles and cascaded utilization of energy principle, and proposition is freezed using pipe inspection composite absorption is vortexed
The low-grade cold that vortex tube is produced is replaced into high-grade cold by system, realizes the efficient conversion between cold grade；The system
Vortex tube is applied in enclosed injection absorbent refrigeration system, cold and the hot junction for recycling vortex tube cold end cryogenic gas are high
The heat of wet body, compared with conventional spray absorption refrigeration cycle, novel vortex tube-injection absorbent refrigeration system have COP it is high,
The characteristics of cryogenic temperature is low, energy-saving effect is obvious.The restriction loss of kind of refrigeration cycle can effectively be reduced by introducing vortex tube, be conducive to carrying
High circulation refrigerating efficiency；Introducing injector can improve into absorber gas pressure, be conducive to strengthening solution absorption efficiency.
Claims (4)
1. a kind of efficient injection absorption refrigerating machine for freezing and refrigeration, including generator, condenser, gas-liquid separator, supercooling
Regenerator, evaporator, injector, vortex tube, absorber, solution heat exchanger, solution pump, solution regulating valve, second throttle；
The first outlet of generator is divided into two-way, and the first via is connected with the import of injector first, and the import of injector first is
The Working-fluid intaking of injector, the second tunnel is suitable with condenser, gas-liquid separator, Subcooled heat recovery device, evaporator, absorber successively
Sequence is contacted；The outlet of gas-liquid separator successively with injector, vortex tube import order contact, vortex tube hot junction outlet successively with it is molten
Liquid heat exchanger, absorber order contact, vortex tube cold side outlet successively with Subcooled heat recovery device, solution heat exchanger, absorber
Order is contacted, and the absorber, solution heat exchanger, generator, solution heat exchanger, absorber order are contacted；
Second tunnel is connected with the import of condenser first, and condenser first outlet is connected with gas-liquid separator import, gas-liquid separator
First outlet be connected with the import of Subcooled heat recovery device first, the first outlet of the gas-liquid separator is the gas-liquid separator
Liquid phase refrigerant is exported, and Subcooled heat recovery device first outlet is connected with evaporator, evaporator outlet and the import of absorber first
It is connected, gas-liquid separator second outlet is connected with the import of injector second, the gas-liquid separator second outlet is the gas-liquid
The vapor phase refrigerant outlet of separator, the import of injector second is the driving fluid entrance of the injector,
Injector outlet is connected with vortex tube import, and the outlet of vortex tube hot junction is connected with the first import of solution heat exchanger, molten
Liquid heat exchanger first outlet is connected with the import of absorber the 4th, in the solution heat exchanger, solution heat exchanger first
Import is connected with solution heat exchanger first outlet,
Vortex tube cold side outlet is connected with the import of Subcooled heat recovery device second, Subcooled heat recovery device second outlet and solution heat exchanger
Two imports are connected, and solution heat exchanger second outlet is connected with the import of absorber second, in the solution heat exchanger, solution
The import of heat exchanger second is connected with solution heat exchanger second outlet,
The first outlet of absorber is connected with solution heat exchanger triple feed inlet, the 3rd outlet of solution heat exchanger and generator
Import is connected, in the solution heat exchanger, the solution heat exchanger triple feed inlet and the solution heat exchanger the 3rd
Outlet,
Generator second outlet is connected with the import of solution heat exchanger the 4th, the outlet of solution heat exchanger the 4th and absorber the 3rd
Import is connected, in the solution heat exchanger, the import of solution heat exchanger the 4th and the solution heat exchanger the 4th
Outlet；
The first outlet of absorber is connected with the import of solution pump, and solution pump discharge is connected with solution heat exchanger triple feed inlet,
The solution pump be used for cause refrigerant rich solution pressurizeed through solution pump after be pumped into solution heat exchanger, herein with from generator
High temperature refrigerant lean solution and vortex tube hot junction refrigerant gas carry out entering generator after heat exchange,
The outlet of solution heat exchanger the 4th is connected with solution regulating valve import, solution regulation valve outlet and absorber triple feed inlet phase
Even；
Subcooled heat recovery device first outlet is connected with second throttle import, and second throttle outlet is connected with evaporator.
2. a kind of efficient injection absorption refrigerating machine for freezing and refrigeration, including generator, condenser, gas-liquid separator, supercooling
Regenerator, evaporator, injector, vortex tube, absorber, solution heat exchanger, solution pump, solution regulating valve, second throttle
With the 3rd choke valve；The first outlet of generator is divided into two-way, and the first via is connected with the import of injector first, the injector
One import be injector Working-fluid intaking, the second tunnel successively with condenser, gas-liquid separator, Subcooled heat recovery device, evaporator,
Absorber order is contacted, and gas-liquid separator is in parallel with evaporator to import injector, and injector outlet is connected with vortex tube successively；
Vortex tube hot junction is exported contacts with solution heat exchanger, absorber order, vortex tube cold side outlet and Subcooled heat recovery device, solution heat
Exchanger, absorber order are contacted, the absorber, solution heat exchanger, generator, solution heat exchanger, absorber order
Series winding；
Second tunnel is connected with the import of condenser first, and condenser first outlet is connected with gas-liquid separator import, gas-liquid separator
First outlet be connected with the import of Subcooled heat recovery device first, the first outlet of the gas-liquid separator is the gas-liquid separator
Liquid phase refrigerant is exported, and Subcooled heat recovery device first outlet is connected with evaporator, evaporator first outlet and absorber first
Import is connected, and evaporator second outlet is connected with gas-liquid separator second outlet with rear with the import of injector second, the gas
Liquid/gas separator second outlet exports for the vapor phase refrigerant of the gas-liquid separator, and the import of injector second is the injection
The driving fluid entrance of device, injector outlet is connected with vortex tube import,
The outlet of vortex tube hot junction is connected with the first import of solution heat exchanger, solution heat exchanger first outlet and absorber the
Four imports are connected, in the solution heat exchanger, and the import of solution heat exchanger first connects with solution heat exchanger first outlet
It is logical,
Vortex tube cold side outlet is connected with the import of Subcooled heat recovery device second, Subcooled heat recovery device second outlet and solution heat exchanger
Two imports are connected, and solution heat exchanger second outlet is connected with the import of absorber second, in the solution heat exchanger, solution
The import of heat exchanger second is connected with solution heat exchanger second outlet,
The first outlet of absorber is connected with solution heat exchanger triple feed inlet, the 3rd outlet of solution heat exchanger and generator
Import is connected, in the solution heat exchanger, the solution heat exchanger triple feed inlet and the solution heat exchanger the 3rd
Outlet,
Generator second outlet is connected with the import of solution heat exchanger the 4th, the outlet of solution heat exchanger the 4th and absorber the 3rd
Import is connected, in the solution heat exchanger, the import of solution heat exchanger the 4th and the solution heat exchanger the 4th
Outlet；
The first outlet of absorber is connected with the import of solution pump, and solution pump discharge is connected with solution heat exchanger triple feed inlet；
The solution pump be used for cause refrigerant rich solution pressurizeed through solution pump after be pumped into solution heat exchanger, herein with from generator
High temperature refrigerant lean solution and vortex tube hot junction refrigerant gas carry out entering generator after heat exchange,
The outlet of solution heat exchanger the 4th is connected with solution regulating valve import, solution regulation valve outlet and absorber triple feed inlet phase
Even；
Subcooled heat recovery device first outlet is connected with second throttle import, and second throttle outlet is connected with evaporator, gas
Liquid/gas separator is connected with the 3rd choke valve import, and the 3rd throttling valve outlet converges rear and injector phase with evaporator second outlet
Even.
3. efficient injection absorption refrigerating machine according to claim 1 or 2, it is characterised in that：The fluid filled in the device
Working medium is one kind in CO2- ionic liquids, CO2-MDEA, freon-absorbent, ammoniacal liquor.
4. efficient injection absorption refrigerating machine according to claim 1 or 2, it is characterised in that：The condenser is that gas is cold
But device.
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| CN105352218B (en) * | 2015-12-04 | 2018-01-30 | 内蒙古科技大学 | A kind of absorbent refrigeration system and method for work based on vortex tube |
| CN105402932B (en) * | 2015-12-04 | 2018-01-30 | 内蒙古科技大学 | A kind of low temperature absorption refrigeration system and method for work with vortex tube |
| CN105485959A (en) * | 2015-12-04 | 2016-04-13 | 内蒙古科技大学 | Low-grade thermally driven vortex tube-ejector absorption refrigeration system |
| CN108163398B (en) * | 2018-01-12 | 2019-09-13 | 中国矿业大学 | A kind of efficiently controlling pressure cryogenic propellant storage tank with induction apparatus |
| CN114543381B (en) * | 2022-03-25 | 2024-05-03 | 浙江工业大学 | Vortex jet self-adaptive solar energy conversion refrigerating system |
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