CN104359246A - 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
- CN104359246A CN104359246A CN201410709379.3A CN201410709379A CN104359246A CN 104359246 A CN104359246 A CN 104359246A CN 201410709379 A CN201410709379 A CN 201410709379A CN 104359246 A CN104359246 A CN 104359246A
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- Prior art keywords
- outlet
- gas
- injector
- liquid
- vortex tube
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
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, particularly relate to a kind of CO utilizing eddy current separating liquid refrigeration to freeze with injector injection
2two temp, refrigerating system.
Background technology
The low-temperature receiver that in often needing in the refrigeration systems such as Food Freezing and Cold Storage, gentle low temperature is different.At present, two temp, refrigerating system mainly adopts single stage compress and the Two-stage Compression combo formula cooling cycle system of conventional refrigerant, system is not only complicated, and conventional refrigerant R22 etc. exists and damages the ozone layer and cause greenhouse effects, there are a series of security hidden troubles leaking and cause in the circulation of natural refrigerant ammonia refrigeration.CO
2there is good thermal performance, but CO
2the reducing pressure by regulating flow loss of Trans-critical cycle kind of refrigeration cycle is comparatively large, improves CO
2the performance of refrigeration system and the efficient CO of development of new
2cooling cycle system can realize energy saving standard.But at present there are no the CO utilizing vortex tube and injector to combine
2the embodiment of two temp, refrigerating system.
Summary of the invention
The object of the invention is for existing CO
2the technological deficiency that Trans-critical cycle refrigeration system exists, provides one to utilize supercritical CO
2fluid vortex expansion step-down, isolated liquid refrigerating and injector injection refrigeration are to improve CO
2the CO of the performance of refrigeration system
2two temp, refrigerating system.
The technical scheme adopted for realizing object of the present invention is:
The CO of a kind of eddy current separating liquid and injector injection
2two temp, refrigerating system, comprises gas cooler, middle temperature evaporimeter, compressor, first throttle valve, check valve, cryogenic vaporizer, second throttle, gas-liquid separator, injector and vortex tube, the outlet of described compressor is connected with the entrance of described gas cooler, the outlet of described gas cooler is divided into two-way, one tunnel 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 injector, the discharge connection of the diffusion room of described injector is connected with the two-phase fluid inlet connection of described gas-liquid separator, the liquid outlet of described gas-liquid separator is connected by the entrance of described second throttle with described cryogenic vaporizer, the outlet of described cryogenic vaporizer is connected with the entrance of described check valve, the outlet of described check valve is connected with taking over the injection of described injector after the outlet parallel connection of described first throttle valve, the gas vent of described gas-liquid separator is connected with the inlet connection of described compressor, the liquid outlet adapter of described vortex tube is connected with the entrance of described middle temperature evaporimeter, the discharge connection of the described discharge connection of middle temperature evaporimeter and cold section of described vortex tube, be connected with the entrance of described first throttle valve after the discharge connection parallel connection of described vortex tube hot arc.
The sidewall bottom of hot arc near minor air cell of described vortex tube is provided with saturated liquid outlet.
Compared with prior art, the invention has the beneficial effects as follows:
1, CO of the present invention
2the CO that two temp, refrigerating system utilizes supercritical region, gas cooler to export
2isolated liquid refrigerating after the step-down of gases at high pressure eddy expansion, and the liquid refrigerating that injector injection gas-liquid separator separates goes out, make full use of the feature that vortex tube and injector have expansion step-down, vortex tube energy separation, injector injection low-pressure fluid and diffusion, effectively can improve the performance of system.
2, CO of the present invention
2adopt the vortex tube with separating liquid effect in two temp, refrigerating system and have the reducing pressure by regulating flow element in the injector replacement conventional refrigeration cycle of injection ejector action, structure is simple, movement-less part; light structure, cost is low, easy care; long service life, protection of the environment, economize energy.
Accompanying drawing explanation
Figure 1 shows that the CO of eddy current separating liquid of the present invention and injector injection
2the schematic diagram of two temp, refrigerating system;
Figure 2 shows that the tube connector schematic diagram of vortex tube;
Figure 3 shows that the structural representation of injector.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The CO of eddy current separating liquid of the present invention and injector injection
2two temp, refrigerating system schematic diagram as shown in Figure 1-Figure 3, comprises gas cooler 1, middle temperature evaporimeter 2, compressor 3, first throttle valve 4, check valve 5, cryogenic vaporizer 6, second throttle 7, gas-liquid separator 8, injector 9 and vortex tube 10; the outlet of described compressor 3 is connected with the entrance of described gas cooler 1, the outlet of described gas cooler 1 is divided into two-way, one tunnel is connected with the inlet connection 14 of the minor air cell 16 of described vortex tube 10, another road is connected with the inlet connection 18 of the main fluid nozzle 23 of described injector 9, the discharge connection 20 of the diffusion room 22 of described injector 9 is connected with the two-phase fluid inlet connection of described gas-liquid separator 8, the liquid outlet of described gas-liquid separator 8 is connected by the entrance of described second throttle 7 with described cryogenic vaporizer 6, the outlet of described cryogenic vaporizer 6 is connected with the entrance of described check valve 5, the outlet of described check valve 5 is connected with the injection adapter 19 of described injector 9 with after the outlet parallel connection of described first throttle valve 4, the gas vent of described gas-liquid separator 8 is connected with the inlet connection of described compressor 3, the liquid outlet adapter 12 of described vortex tube 10 is connected with the entrance of described middle temperature evaporimeter 2, the discharge connection 13 of the described discharge connection of middle temperature evaporimeter 2 and cold section 17 of described vortex tube 10, be connected with the entrance of described first throttle valve 4 after discharge connection 11 parallel connection of described vortex tube 10 hot arc 15.
During system cloud gray model, from gas cooler 1 HTHP CO out
2the nozzle of tangential distribution is prolonged on gas one tunnel in the minor air cell 16 of vortex tube 10, and expansion step-down is gas-liquid two-phase fluid, and in minor air cell 16, High Rotation Speed flowing, isolates saturated liquid, cold air and hot gas.The cold air being in center is changed direction by the center baffle in hot arc 15 exit of vortex tube, towards cold section 17 flowing of vortex tube, the gas and vapor permeation that saturated cold air is exported by the hot gas that cold air outlet is discharged and hot arc 15 is discharged and middle temperature evaporimeter 2 enters first throttle valve 4.From gas cooler 1 HTHP CO out
2the main fluid nozzle 23 that another road of gas enters injector 9 sprays step-down, injection cryogenic vaporizer 6 exports and enters mixing chamber 21 with the mist of first throttle valve 4, gas-liquid separator 8 is entered after the diffusion of diffusion room 22, the isolated liquid of gas-liquid separator 8 enters cryogenic vaporizer 6 and absorbs heat after second throttle 7 reducing pressure by regulating flow, for the cold space of low temperature provides low-temperature receiver.The isolated saturated liquid of vortex tube 10 enters middle temperature evaporimeter 2 and absorbs heat, for the cold space of middle temperature provides low-temperature receiver.The isolated gas of gas-liquid separator 8 enter compressor 3 through overcompression laggard enter gas cooler 1.
CO of the present invention
2the CO that two temp, refrigerating system utilizes supercritical region, gas cooler to export
2isolated liquid refrigerating after the step-down of gases at high pressure eddy expansion, and the liquid refrigerating that injector injection gas-liquid separator separates goes out, make full use of the feature that vortex tube and injector have expansion step-down, vortex tube energy separation, injector injection low-pressure fluid and diffusion, effectively can improve the performance of system.And structure is simple, and movement-less part, light structure, cost is low, easy care, long service life, protection of the environment, economize energy.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. the CO of an eddy current separating liquid and injector injection
2two temp, refrigerating system, is characterized in that, comprises gas cooler, middle temperature evaporimeter, compressor, first throttle valve, check valve, cryogenic vaporizer, second throttle, gas-liquid separator, injector and vortex tube, the outlet of described compressor is connected with the entrance of described gas cooler, the outlet of described gas cooler is divided into two-way, one tunnel 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 injector, the discharge connection of the diffusion room of described injector is connected with the two-phase fluid inlet connection of described gas-liquid separator, the liquid outlet of described gas-liquid separator is connected by the entrance of described second throttle with described cryogenic vaporizer, the outlet of described cryogenic vaporizer is connected with the entrance of described check valve, the outlet of described check valve is connected with taking over the injection of described injector after the outlet parallel connection of described first throttle valve, the gas vent of described gas-liquid separator is connected with the inlet connection of described compressor, the liquid outlet adapter of described vortex tube is connected with the entrance of described middle temperature evaporimeter, the discharge connection of the described discharge connection of middle temperature evaporimeter and cold section of described vortex tube, be connected with the entrance of described first throttle valve after the discharge connection parallel connection of described vortex tube hot arc.
2. the CO of eddy current separating liquid according to claim 1 and injector injection
2two temp, refrigerating system, is characterized in that, the sidewall bottom of hot arc near minor air cell 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 |
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| CN104359246A true CN104359246A (en) | 2015-02-18 |
| CN104359246B CN104359246B (en) | 2017-02-22 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108139132A (en) * | 2015-10-20 | 2018-06-08 | 丹佛斯有限公司 | For controlling the method for the vapor compression system for having changeable reception device pressure set-point |
| CN108362026A (en) * | 2018-04-19 | 2018-08-03 | 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 |
| US10508850B2 (en) | 2015-10-20 | 2019-12-17 | Danfoss A/S | Method for controlling a vapour compression system in a flooded state |
| US10775086B2 (en) | 2015-10-20 | 2020-09-15 | Danfoss A/S | Method for controlling a vapour compression system in ejector mode for a prolonged time |
| US10816245B2 (en) | 2015-08-14 | 2020-10-27 | Danfoss A/S | Vapour compression system with at least two evaporator groups |
| US11333449B2 (en) | 2018-10-15 | 2022-05-17 | Danfoss A/S | Heat exchanger plate with strengthened diagonal area |
| CN117553446A (en) * | 2024-01-11 | 2024-02-13 | 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 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10816245B2 (en) | 2015-08-14 | 2020-10-27 | Danfoss A/S | Vapour compression system with at least two evaporator groups |
| CN108139132A (en) * | 2015-10-20 | 2018-06-08 | 丹佛斯有限公司 | For controlling the method for the vapor compression system for having changeable reception device pressure set-point |
| US10508850B2 (en) | 2015-10-20 | 2019-12-17 | Danfoss A/S | Method for controlling a vapour compression system in a flooded state |
| CN108139132B (en) * | 2015-10-20 | 2020-08-25 | 丹佛斯有限公司 | Method for controlling a vapor compression system with variable receiver pressure set point |
| US10775086B2 (en) | 2015-10-20 | 2020-09-15 | Danfoss A/S | Method for controlling a vapour compression system in ejector mode for a prolonged time |
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| CN108362026A (en) * | 2018-04-19 | 2018-08-03 | 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 |
| US11333449B2 (en) | 2018-10-15 | 2022-05-17 | Danfoss A/S | Heat exchanger plate with strengthened diagonal area |
| CN117553446A (en) * | 2024-01-11 | 2024-02-13 | 苏州八匹马超导科技有限公司 | Vortex technology-based heat exchange system and control method |
| 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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| CN104359246B (en) | 2017-02-22 |
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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. |