CN205227902U - Carbon dioxide secondary refrigerant refrigerating unit - Google Patents
Carbon dioxide secondary refrigerant refrigerating unit Download PDFInfo
- Publication number
- CN205227902U CN205227902U CN201521032164.9U CN201521032164U CN205227902U CN 205227902 U CN205227902 U CN 205227902U CN 201521032164 U CN201521032164 U CN 201521032164U CN 205227902 U CN205227902 U CN 205227902U
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- reservoir
- liquid
- refrigerant
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 71
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 71
- 239000003507 refrigerant Substances 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 230000008020 evaporation Effects 0.000 claims abstract description 24
- 238000001704 evaporation Methods 0.000 claims abstract description 24
- 238000005057 refrigeration Methods 0.000 claims description 13
- 230000005494 condensation Effects 0.000 abstract 2
- 238000009833 condensation Methods 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a carbon dioxide secondary refrigerant refrigerating unit, its compressor enters the condenser with refrigerant gas, is become refrigerant liquid and gets into the reservoir by the condensation in the condenser, this refrigerant liquid becomes low temperature and low pressure liquid and gets into heat exchanger behind the expansion valve throttle, in heat exchanger with the carbon dioxide reservoir in carbon dioxide gas trade heat altered to become low temperature and low pressure's refrigerant gaseous, then the compressed machine absorbs in order to accomplish refrigerant cycle once more, carbon dioxide liquid in the carbon dioxide reservoir gets into the evaporation calandria, heat in evaporation calandria internal absorption skating rink, and the carbon dioxide who evaporates into low pressure is gaseous, then gets into the carbon dioxide reservoir through the evaporation calandria, gets into heat exchanger through the pipeline, and the gaseous low temperature and low pressure liquid that forms with refrigerant liquid throttle back of this carbon dioxide carries out the heat exchange in heat exchanger, and the gaseous condensation of carbon dioxide becomes carbon dioxide liquid, carbon dioxide fluid passage pipeline to re -enter the reservoir is with this circulation.
Description
Technical field
The utility model relates to refrigeration technology field, particularly relates to a kind of carbon dioxide refrigerating medium refrigeration unit.
Background technology
In prior art, the heat exchange evaporation comb of artificial ice rink is arranged in the mixed dirt bed on ground, and adopts seamless steel pipe to adopt salt solution or ethylene glycol to freeze.There is following problem in this refrigeration modes: heat transfer area is comparatively large, and piping volume is large, and thus corresponding system bulk is large, and need refrigerant flow large, refrigerating efficiency is low.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of carbon dioxide refrigerating medium refrigeration unit, compared with prior art, system bulk significantly reduces, and refrigerating efficiency is high.
The utility model is achieved through the following technical solutions:
A kind of carbon dioxide refrigerating medium refrigeration unit, it comprises: compressor, heat exchanger, condenser, carbon dioxide reservoir, heat exchange evaporation comb, expansion valve and cold-producing medium reservoir, and refrigeration object is ice rink; Wherein, heat exchange evaporation comb is arranged in the subsurface of ice rink, all the other as a whole unit be arranged in outside ice rink;
Its annexation is:
Condenser, compressor, expansion valve, reservoir, condenser are connected successively by pipeline, and the pipeline between compressor, expansion valve is by heat exchanger, is refrigerant circulation in the pipeline under this annexation;
Carbon dioxide reservoir is connected by pipeline with heat exchanger; Carbon dioxide reservoir also communicates with heat exchange evaporation comb, is refrigerating medium circulation in the pipeline under this annexation, i.e. carbon dioxide recycle;
Its particular content is:
Refrigerant gas is entered condenser by compressor, in condenser, this refrigerant gas is condensed into refrigerant liquid and enters reservoir, this refrigerant liquid becomes Low temperature low pressure liquid and enters heat exchanger after expansion valve throttling, carbon dioxide heat exchange in heat exchanger in this Low temperature low pressure liquid and carbon dioxide reservoir becomes the refrigerant gas of low-temp low-pressure, and then has been absorbed refrigerant circulation by compressor;
Carbon dioxide liquid is stored in carbon dioxide reservoir, carbon dioxide liquid enters heat exchange evaporation comb and freezes to ice rink, in heat exchange evaporation comb, carbon dioxide liquid absorbs the heat in ice rink, flash to the carbon dioxide of low pressure, carbon dioxide enters carbon dioxide reservoir by heat exchange evaporation comb, then carbon dioxide enters heat exchanger by pipeline again, the Low temperature low pressure liquid formed after this carbon dioxide and refrigerant liquid throttling in heat exchanger carries out heat exchange, and carbon dioxide is condensed into carbon dioxide liquid; Carbon dioxide liquid enters reservoir again by pipeline, circulates with this.
Compared with prior art, the beneficial effects of the utility model are: substitute salt solution of the prior art or ethylene glycol, adopt CO
2make refrigerating medium, CO
2liquid absorbs heat evaporation in evaporator coil, and heat exchange has mainly been exchanged by the latent heat of phase transformation, because carbon dioxide specific refrigerating effect is large, refrigerant flow needed for system is little, thus system bulk significantly reduces, and refrigerating efficiency is high, and has the powerful advantages of safety and environmental protection.
Accompanying drawing explanation
Fig. 1 is carbon dioxide refrigerating medium refrigerating unit structure schematic diagram of the present utility model.
In figure: 1, compressor; 2, heat exchanger; 3, condenser; 4, carbon dioxide reservoir; 5 heat exchange evaporation combs; 6, expansion valve; 7, cold-producing medium reservoir.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Carbon dioxide as coolant has good physical characteristic, nontoxic, non-combustible, and ODP is 0, GWP is 1, has good chemical stability.And refrigerating effect per unit swept volume is high, gasification latent heat is large, and compared to other refrigerating mediums, it also has the characteristic of phase transformation, and the cold absorbing release is larger, is more suitable for the larger place of refrigeration duty and uses.
Refer to Fig. 1, Fig. 1 is structural representation of the present utility model.Carbon dioxide refrigerating medium refrigeration unit of the present utility model, it comprises: compressor 1, heat exchanger 2, condenser 3, carbon dioxide reservoir 4, heat exchange evaporation comb 5, expansion valve 6 and cold-producing medium reservoir 7, and refrigeration object is ice rink; Wherein, heat exchange evaporation comb 5 is arranged in the subsurface of ice rink, all the other as a whole unit be arranged in outside ice rink;
Its annexation is:
Condenser 3, compressor 1, expansion valve 6, reservoir 7, condenser 3 are connected successively by pipeline, and the pipeline between compressor 1, expansion valve 6 is by heat exchanger 2, is refrigerant circulation in the pipeline under this annexation;
Carbon dioxide reservoir 4 is connected by pipeline with heat exchanger 2; Carbon dioxide reservoir 4 also communicates with heat exchange evaporation comb, is refrigerating medium circulation in the pipeline under this annexation, i.e. carbon dioxide recycle.
Carbon dioxide refrigerating medium refrigeration unit running of the present utility model:
Compressor 1 mechanical compress discharges high temperature and high pressure gas, in condenser 3, the refrigerant gas of HTHP is condensed into liquid, refrigerant liquid enters reservoir 7, be Low temperature low pressure liquid by the expansion throttling of expansion valve 6, described liquid enters heat exchanger 2 and becomes cold-producing medium cryogenic gas with the carbon dioxide refrigerating medium heat exchange from carbon dioxide reservoir 4, and described cryogenic gas is absorbed by compressor 1, boil down to high-temperature high-pressure refrigerant gas, complete refrigerant circulation, and so forth;
In heat exchanger, 2 carry out heat exchange from the carbon dioxide of heat exchange evaporation comb 5 and cold-producing medium cryogenic liquid, and carbon dioxide is condensed into carbon dioxide liquid; Carbon dioxide liquid enters reservoir 4 by pipeline, then enters ice rink by heat exchange evaporation comb 5 and freezes, and in heat exchange evaporation comb 5, carbon dioxide liquid is again absorbed heat and flashed to carbon dioxide low-pressure gas and enter reservoir 4 and absorb, and circulates with this.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (1)
1. a carbon dioxide refrigerating medium refrigeration unit, it is characterized in that, comprise: compressor (1), heat exchanger (2), condenser (3), carbon dioxide reservoir (4), heat exchange evaporation comb (5), expansion valve (6) and cold-producing medium reservoir (7), refrigeration object is ice rink; Wherein, heat exchange evaporation comb (5) is arranged in the subsurface of ice rink, all the other as a whole unit be arranged in outside ice rink;
Its annexation is:
Condenser (3), compressor (1), expansion valve (6), reservoir (7), condenser (3) are connected successively by pipeline, and the pipeline between compressor (1), expansion valve (6) is by heat exchanger (2), is refrigerant circulation in the pipeline under this annexation;
Carbon dioxide reservoir (4) is connected by pipeline with heat exchanger (2); Carbon dioxide reservoir (4) also communicates with heat exchange evaporation comb, is refrigerating medium circulation in the pipeline under this annexation, i.e. carbon dioxide recycle;
Its particular content is:
Refrigerant gas is entered condenser (3) by compressor (1), in condenser (3), this refrigerant gas is condensed into refrigerant liquid and enters reservoir (7), this refrigerant liquid becomes Low temperature low pressure liquid and enters heat exchanger (2) after expansion valve (6) throttling, carbon dioxide heat exchange in heat exchanger (2) in this Low temperature low pressure liquid and carbon dioxide reservoir (4) becomes the refrigerant gas of low-temp low-pressure, and then is absorbed by compressor (1) to complete refrigerant circulation;
Carbon dioxide reservoir stores carbon dioxide liquid in (4), carbon dioxide liquid enters heat exchange evaporation comb (5) and freezes to ice rink, in heat exchange evaporation comb (5), carbon dioxide liquid absorbs the heat in ice rink, flash to the carbon dioxide of low pressure, carbon dioxide enters carbon dioxide reservoir (4) by heat exchange evaporation comb (5), then carbon dioxide enters heat exchanger (2) by pipeline again, the Low temperature low pressure liquid formed after this carbon dioxide and refrigerant liquid throttling in heat exchanger (2) carries out heat exchange, carbon dioxide is condensed into carbon dioxide liquid, carbon dioxide liquid enters reservoir (4) again by pipeline, circulates with this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521032164.9U CN205227902U (en) | 2015-12-14 | 2015-12-14 | Carbon dioxide secondary refrigerant refrigerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521032164.9U CN205227902U (en) | 2015-12-14 | 2015-12-14 | Carbon dioxide secondary refrigerant refrigerating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205227902U true CN205227902U (en) | 2016-05-11 |
Family
ID=55902960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521032164.9U Expired - Fee Related CN205227902U (en) | 2015-12-14 | 2015-12-14 | Carbon dioxide secondary refrigerant refrigerating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205227902U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285596A (en) * | 2019-07-12 | 2019-09-27 | 山东神舟制冷设备有限公司 | A Pure CO2 Ice Skating Rink Refrigeration System |
| CN111473559A (en) * | 2019-01-23 | 2020-07-31 | 北京泛华新兴体育产业股份有限公司 | Ice house ice making system |
| CN113137794A (en) * | 2021-05-21 | 2021-07-20 | 松下冷机***（大连）有限公司 | Carbon dioxide ice making pipeline system for speed skating field |
| WO2024120546A3 (en) * | 2023-12-18 | 2024-10-03 | 华北理工大学 | Transcritical carbon dioxide refrigeration device for artificial ice rink |
-
2015
- 2015-12-14 CN CN201521032164.9U patent/CN205227902U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473559A (en) * | 2019-01-23 | 2020-07-31 | 北京泛华新兴体育产业股份有限公司 | Ice house ice making system |
| CN110285596A (en) * | 2019-07-12 | 2019-09-27 | 山东神舟制冷设备有限公司 | A Pure CO2 Ice Skating Rink Refrigeration System |
| CN113137794A (en) * | 2021-05-21 | 2021-07-20 | 松下冷机***（大连）有限公司 | Carbon dioxide ice making pipeline system for speed skating field |
| WO2024120546A3 (en) * | 2023-12-18 | 2024-10-03 | 华北理工大学 | Transcritical carbon dioxide refrigeration device for artificial ice rink |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205227902U (en) | Carbon dioxide secondary refrigerant refrigerating unit | |
| CN102374698A (en) | Refrigerating system being opening-type refrigerating and heating device | |
| CN109724293A (en) | Solar-driven absorption subcooled CO2 transcritical two-stage compression refrigeration system | |
| CN201229082Y (en) | Supermarket refrigeration system with natural working substance | |
| CN202382475U (en) | Refrigerating and heating device with opened refrigerating system | |
| CN103968603B (en) | A kind of ultra-low-loop temperature air source heat pump and finned heat exchanger defrosting method thereof | |
| CN203810792U (en) | Novel ultralow environment temperature air source heat pump | |
| CN105352213A (en) | Steam and air cascade refrigerating system | |
| CN204648736U (en) | A kind of CO 2/ NH 3folding type cooling system | |
| CN204202062U (en) | With the water-cooled cooling water air conditioner unit of ice-reserving function | |
| CN110500802A (en) | Cold Storage Subcooled Transcritical Integrated CO2 Refrigeration System | |
| CN106705494A (en) | Air source heat pump energy conservation system with function of preventing air side heat exchanger from freezing | |
| CN109883079A (en) | A kind of absorption compression interactive recooling composite refrigeration system and method | |
| CN210861779U (en) | Cold accumulation type supercooling transcritical integrated CO2Refrigeration system | |
| CN202041016U (en) | Centrifugal unit | |
| CN211823239U (en) | Ultra-low temperature transcritical cascade refrigeration system | |
| CN109282397B (en) | Novel energy storage air conditioner and method based on air compression refrigeration cycle | |
| CN203629121U (en) | Cryogenic fluid cold energy utilization system | |
| CN206338981U (en) | Energy saving refrigeration installation and its system | |
| CN201497096U (en) | Damp-heat energy negative pressure cooling refrigerator | |
| CN205718040U (en) | Solar energy, geothermal energy auxiliary CO2trans-critical cycle refrigerating and heat-supplying system | |
| CN203837368U (en) | Coordination refrigeration cold storage capable of absorbing waste heat | |
| CN211823245U (en) | Novel carbon dioxide ice cold-storage system | |
| CN211977298U (en) | Heat recovery system in CO2 cascade refrigeration system | |
| CN107036205A (en) | Using the water of the heat of transformation, earth-source hot-pump system and refrigeration with heating technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |