CN104359246B - CO2 two-temperature refrigerating system adopting vortex liquid separation and ejector injection - Google Patents
CO2 two-temperature refrigerating system adopting vortex liquid separation and ejector injection Download PDFInfo
- Publication number
- CN104359246B CN104359246B CN201410709379.3A CN201410709379A CN104359246B CN 104359246 B CN104359246 B CN 104359246B CN 201410709379 A CN201410709379 A CN 201410709379A CN 104359246 B CN104359246 B CN 104359246B
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- outlet
- gas
- ejector
- liquid
- vortex
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
Abstract
The invention discloses a CO2 two-temperature refrigerating system adopting vortex liquid separation and ejector injection and in particular relates to a two-temperature refrigerating system capable of improving the performance of the CO2 refrigerating system. An outlet of a compressor is connected with an inlet of a gas cooler, one circuit of an outlet of the gas cooler is connected with an inlet connecting pipe of a vortex chamber of a vortex pipe, the other circuit of the outlet of the gas cooler is connected with an inlet connecting pipe of an ejector, an outlet connecting pipe of the ejector is connected with a two-phase fluid inlet connecting pipe of a gas-liquid separator, a liquid outlet of the gas-liquid separator is connected with an inlet of a low-temperature evaporator through two throttling valves, an outlet of the low-temperature evaporator is connected with an inlet of a check valve, an outlet of the check valve is connected with an injection connecting pipe of the ejector after being connected with the outlet of the first throttling valve in parallel, a gas outlet of the gas-liquid separator is connected with an inlet connecting pipe of the compressor, a liquid outlet connecting pipe of the vortex pipe is connected with an inlet of a middle-temperature evaporator, and an outlet connecting pipe of the middle-temperature evaporator is connected with an inlet of the first throttling valve after being connected with outlet connecting pipes of a cold section and a hot section of the vortex pipe in parallel.
Description
Technical field
The present invention relates to refrigeration technology field, more particularly to a kind of utilization are vortexed separation liquid refrigerating and ejector injection
The CO of refrigeration2Dual temperature refrigeration system.
Background technology
The gentle different low-temperature receiver of low temperature in being frequently necessary in the refrigeration systems such as Food Freezing and Cold Storage.At present, dual temperature refrigeration
System mainly adopts single stage compress and the Two-stage Compression combo formula cooling cycle system of conventional refrigerant, and system is not only complicated, and
And conventional refrigerant R22 etc. exists and damages the ozone layer and cause greenhouse effect, there is leakage and cause in the circulation of natural refrigerant ammonia refrigeration
A series of security hidden troubles.CO2There is good thermal performance, but CO2The reducing pressure by regulating flow loss of Trans-critical cycle kind of refrigeration cycle
Larger, improve CO2The performance of refrigeration system and the new and effective CO of exploitation2Cooling cycle system can realize energy-conservation and environmental protection.But
There are no the CO combining with ejector using vortex tube at present2The embodiment of dual temperature refrigeration system.
Content of the invention
The purpose of the present invention is for existing CO2The technological deficiency that transcritical cooling system exists, provides a kind of utilization to surpass
Critical CO2Fluid vortex expansion blood pressure lowering, the liquid refrigerating isolated and ejector injection freeze to improve CO2Refrigeration system
The CO of performance2Dual temperature refrigeration system.
Be employed technical scheme comprise that by realizing the purpose of the present invention：
A kind of vortex separates the CO of liquid and ejector injection2Dual temperature refrigeration system, including gas cooler, the evaporation of middle temperature
Device, compressor, first throttle valve, check valve, cryogenic vaporizer, second throttle, gas-liquid separator, ejector and vortex tube；
The outlet of described compressor is connected with the entrance of described gas cooler, and the outlet of described gas cooler is divided into two-way, a road
It is connected with the inlet connection of the minor air cell of described vortex tube, another road is connected with the inlet connection of the main fluid nozzle of described ejector
Connect, the discharge connection of diffusion room of described ejector is connected with the two-phase fluid inlet connection of described gas-liquid separator, described gas
The liquid outlet of liquid/gas separator is connected with the entrance of described cryogenic vaporizer by described second throttle, described cryogenic vaporizer
Outlet be connected with the entrance of described check valve, described check valve outlet in parallel with the outlet of described first throttle valve after with institute
The injection adapter stating ejector connects, and the gas outlet of described gas-liquid separator is connected with the inlet connection of described compressor, institute
State vortex tube liquid outlet adapter be connected with the entrance of described middle temperature vaporizer, the discharge connection of described middle temperature vaporizer and
With the entering of described first throttle valve after cold section of discharge connection of described vortex tube, the discharge connection parallel connection of described vortex tube hot arc
Mouth connects.
The sidewall bottom near minor air cell for the hot arc of described vortex tube is provided with saturated liquid outlet.
Compared with prior art, the invention has the beneficial effects as follows：
1st, the CO of the present invention2Dual temperature refrigeration system utilizes supercritical region, the CO of gas cooler outlet2Gases at high pressure are vortexed
The liquid refrigerating isolated after expanding blood pressure lowering, and the liquid refrigerating that ejector injection gas-liquid separator separates go out, make full use of
Vortex tube and ejector have the characteristics that to expand blood pressure lowering, vortex tube energy separation, ejector injection low-pressure fluid and diffusion, permissible
Effectively improve the performance of system.
2nd, the CO of the present invention2Separate the vortex tube of liquid effects and there is injection injection using having in dual temperature refrigeration system
The ejector of effect replaces the reducing pressure by regulating flow element in conventional refrigeration cycle, and structure is simple, movement-less part, light structure, becomes
This low, easy care, long service life, environmental protection, energy saving.
Brief description
Fig. 1 show the vortex separation liquid of the present invention and the CO of ejector injection2The schematic diagram of dual temperature refrigeration system；
Fig. 2 show the connecting tube schematic diagram of vortex tube；
Fig. 3 show the structural representation of ejector.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The vortex separation liquid of the present invention and the CO of ejector injection2Dual temperature refrigeration system schematic diagram as shown in Figure 1-Figure 3,
Including gas cooler 1, middle temperature vaporizer 2, compressor 3, first throttle valve 4, check valve 5, cryogenic vaporizer 6, second throttling
Valve 7, gas-liquid separator 8, ejector 9 and vortex tube 10；The outlet of described compressor 3 is with the entrance of described gas cooler 1 even
Connect, the outlet of described gas cooler 1 is divided into two-way, and a road is connected with the inlet connection 14 of the minor air cell 16 of described vortex tube 10
Connect, another road is connected with the inlet connection 18 of the main fluid nozzle 23 of described ejector 9, the diffusion room 22 of described ejector 9
Discharge connection 20 is connected with the two-phase fluid inlet connection of described gas-liquid separator 8, and the liquid outlet of described gas-liquid separator 8 leads to
The entrance crossing described second throttle 7 with described cryogenic vaporizer 6 is connected, and the outlet of described cryogenic vaporizer 6 is unidirectional with described
The entrance of valve 5 connects, the outlet of described check valve 5 and described first throttle valve 4 export in parallel after with the drawing of described ejector 9
Penetrate adapter 19 to connect, the gas outlet of described gas-liquid separator 8 is connected with the inlet connection of described compressor 3, described vortex tube
10 liquid outlet adapter 12 is connected with the entrance of described middle temperature vaporizer 2, the discharge connection of described middle temperature vaporizer 2 with described
With described first segment after the discharge connection 13 of cold section 17 of vortex tube 10, discharge connection 11 parallel connection of described vortex tube 10 hot arc 15
The entrance of stream valve 4 connects.
During system operation, from gas cooler 1 High Temperature High Pressure CO out2Gas one tunnel is through the minor air cell of vortex tube 10
Prolong the nozzle of tangential distribution, expansion blood pressure lowering is gas-liquid two-phase fluid, high-speed rotation flowing, isolates full in minor air cell 16 in 16
With liquid, cold air and hot gas.The cold air being in center is changed by the center baffle in hot arc 15 exit of vortex tube
Direction, towards cold section 17 of vortex tube flowing, saturation cold air by cold air outlet discharge the hot gas discharged with hot arc 15 with
And the gas mixing of middle temperature vaporizer 2 outlet enters first throttle valve 4.From gas cooler 1 High Temperature High Pressure CO out2Gas
Another road enter main fluid nozzle 23 injection blood pressure lowering, injection cryogenic vaporizer 6 outlet and the first throttle valve 4 of ejector 9
Mixed gas enter mixing chamber 21, enter gas-liquid separator 8 after the diffusion of diffusion room 22, gas-liquid separator 8 isolates
Liquid enters cryogenic vaporizer 6 after second throttle 7 reducing pressure by regulating flow and absorbs heat, provides low-temperature receiver for low temperature with cold space.Whirlpool
The saturated liquid that flow tube 10 is isolated enters middle temperature vaporizer 2 and absorbs heat, provides low-temperature receiver for middle temperature with cold space.Gas-liquid separation
The gas that device 8 is isolated enters compressor 3 and enters gas cooler 1 after overcompression.
The CO of the present invention2Dual temperature refrigeration system utilizes supercritical region, the CO of gas cooler outlet2Gases at high pressure vortex is swollen
The liquid refrigerating isolated after swollen blood pressure lowering, and the liquid refrigerating that ejector injection gas-liquid separator separates go out, make full use of whirlpool
Flow tube and ejector have the characteristics that to expand blood pressure lowering, vortex tube energy separation, ejector injection low-pressure fluid and diffusion, Ke Yiyou
Effect ground improves the performance of system.And, structure is simple, movement-less part, light structure, low cost, easy care, service life
Long, environmental protection, energy saving.
The above is only the preferred embodiment of the present invention it is noted that common skill for the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of vortex separates the CO of liquid and ejector injection2Dual temperature refrigeration system it is characterised in that include gas cooler,
Middle temperature vaporizer, compressor, first throttle valve, check valve, cryogenic vaporizer, second throttle, gas-liquid separator, ejector and
Vortex tube；The outlet of described compressor is connected with the entrance of described gas cooler, and the outlet of described gas cooler is divided into two
Road, a road is connected with the inlet connection of the minor air cell of described vortex tube, and another road is entered with the main fluid nozzle of described ejector
Mouth adapter connects, and the discharge connection of diffusion room of described ejector is connected with the two-phase fluid inlet connection of described gas-liquid separator
Connect, the liquid outlet of described gas-liquid separator is connected with the entrance of described cryogenic vaporizer by described second throttle, described
The outlet of cryogenic vaporizer is connected with the entrance of described check valve, the outlet exporting with described first throttle valve of described check valve
It is connected with the injection adapter of described ejector after parallel connection, the gas outlet of described gas-liquid separator is connect with the entrance of described compressor
Pipe connects, and the adapter of the liquid outlet of described vortex tube is connected with the entrance of described middle temperature vaporizer, the going out of described middle temperature vaporizer
With described first segment after mouthful adapter is in parallel with the discharge connection of cold section of described vortex tube of discharge connection, described vortex tube hot arc
The entrance of stream valve connects；From described gas cooler High Temperature High Pressure CO out2Gas one tunnel is indoor through the vortex of vortex tube
Prolong the nozzle of tangential distribution, expansion blood pressure lowering is gas-liquid two-phase fluid, in vortex indoor high-speed rotation flowing, isolate saturated solution
Body, cold air and hot gas；The center baffle in the hot arc exit of described vortex tube will be in the cold air change side of center
To towards cold section of flowing of vortex tube, saturation cold air discharges the hot gas discharged with hot arc and middle temperature by cold air outlet
The gas mixing of evaporator outlet enters first throttle valve.
2. vortex according to claim 1 separates the CO of liquid and ejector injection2Dual temperature refrigeration system it is characterised in that
The sidewall bottom near minor air cell for the hot arc of described vortex tube is provided with saturated liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709379.3A CN104359246B (en) | 2014-11-28 | 2014-11-28 | CO2 two-temperature refrigerating system adopting vortex liquid separation and ejector injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709379.3A CN104359246B (en) | 2014-11-28 | 2014-11-28 | CO2 two-temperature refrigerating system adopting vortex liquid separation and ejector injection |
Publications (2)
| Publication Number | Publication Date |
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| CN104359246A CN104359246A (en) | 2015-02-18 |
| CN104359246B true CN104359246B (en) | 2017-02-22 |
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| CN201410709379.3A Active CN104359246B (en) | 2014-11-28 | 2014-11-28 | CO2 two-temperature refrigerating system adopting vortex liquid separation and ejector injection |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3334985B1 (en) | 2015-08-14 | 2019-05-01 | Danfoss A/S | A vapour compression system with at least two evaporator groups |
| CA2997658A1 (en) * | 2015-10-20 | 2017-04-27 | Danfoss A/S | A method for controlling a vapour compression system with a variable receiver pressure setpoint |
| PL3365620T3 (en) | 2015-10-20 | 2020-01-31 | Danfoss A/S | A method for controlling a vapour compression system in a flooded state |
| BR112018007270A2 (en) | 2015-10-20 | 2018-10-30 | Danfoss As | method for controlling an ejector mode steam compression system for an extended time |
| CN108362026B (en) * | 2018-04-19 | 2019-11-22 | 天津商业大学 | A kind of carbon dioxide trans-critical cycle cool and thermal power combined system |
| NO344191B1 (en) * | 2018-06-25 | 2019-10-07 | Sinop Norge As | Apparatus and method for transferring heat |
| DK180146B1 (en) | 2018-10-15 | 2020-06-25 | Danfoss As Intellectual Property | Heat exchanger plate with strenghened diagonal area |
| CN117553446B (en) * | 2024-01-11 | 2024-03-19 | 苏州八匹马超导科技有限公司 | Vortex technology-based heat exchange system and control method |
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| EP0003293A1 (en) * | 1978-01-25 | 1979-08-08 | STIEBEL ELTRON GmbH & Co. KG | Method of heating with an absorption type heating pump installation |
| JP2005321180A (en) * | 2004-05-10 | 2005-11-17 | Neiwa O | Absorption type cold/heat generation, cascade cold/heat generation, cogeneration method and device and heat exchanger |
| CN101825372A (en) * | 2010-04-14 | 2010-09-08 | 东南大学 | Device and method for combined ejection refrigeration and vapor compression refrigeration cycle |
| TW201241381A (en) * | 2010-11-16 | 2012-10-16 | Tai-Her Yang | Temperature regulation system with active jetting type refrigerant supply and regulation |
| CN103842745A (en) * | 2011-09-30 | 2014-06-04 | 开利公司 | High efficiency refrigeration system |
| CN204254927U (en) * | 2014-11-28 | 2015-04-08 | 天津商业大学 | The CO of eddy current separating liquid and injector injection 2two temp, refrigerating system |
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2014
- 2014-11-28 CN CN201410709379.3A patent/CN104359246B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0003293A1 (en) * | 1978-01-25 | 1979-08-08 | STIEBEL ELTRON GmbH & Co. KG | Method of heating with an absorption type heating pump installation |
| JP2005321180A (en) * | 2004-05-10 | 2005-11-17 | Neiwa O | Absorption type cold/heat generation, cascade cold/heat generation, cogeneration method and device and heat exchanger |
| CN101825372A (en) * | 2010-04-14 | 2010-09-08 | 东南大学 | Device and method for combined ejection refrigeration and vapor compression refrigeration cycle |
| TW201241381A (en) * | 2010-11-16 | 2012-10-16 | Tai-Her Yang | Temperature regulation system with active jetting type refrigerant supply and regulation |
| CN103842745A (en) * | 2011-09-30 | 2014-06-04 | 开利公司 | High efficiency refrigeration system |
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| CN104359246A (en) | 2015-02-18 |
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Effective date of registration: 20180725 Address after: 510000 No.1, Lihong Road, Huadu District, Guangzhou City, Guangdong Province (part: 1A) Patentee after: Guangzhou green ban kitchenware Technology Co., Ltd. Address before: Tianjin highway 300134 East Tianjin District of Beichen City Patentee before: Tianjin University Of Commerce |
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Effective date of registration: 20190516 Address after: 510000 Lihong Road, Huadu District, Guangzhou City, Guangdong Province, No. 1 (Part 1A) Patentee after: Guangdong green intelligent cold chain Polytron Technologies Inc Address before: 510000 No.1, Lihong Road, Huadu District, Guangzhou City, Guangdong Province (part: 1A) Patentee before: Guangzhou green ban kitchenware Technology Co., Ltd. |