CN102478320A - Overlapping large CO2 refrigeration (heating) unit technology - Google Patents
Overlapping large CO2 refrigeration (heating) unit technology Download PDFInfo
- Publication number
- CN102478320A CN102478320A CN2010105686692A CN201010568669A CN102478320A CN 102478320 A CN102478320 A CN 102478320A CN 2010105686692 A CN2010105686692 A CN 2010105686692A CN 201010568669 A CN201010568669 A CN 201010568669A CN 102478320 A CN102478320 A CN 102478320A
- Authority
- CN
- China
- Prior art keywords
- level
- refrigeration
- grade
- safety
- gas
- 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.)
- Pending
Links
Images
Abstract
The invention discloses an overlapping large CO2 refrigeration (heating) unit which comprises a first-level compressor, an air-cooling condenser, an evaporative condenser, a first-level safety heat exchanger, first-level and second-level drying filters, first-level and second-level electromagnetic valves, first-level and second-level expansion valves, a second-level compressor, a second-level safety heat exchanger, first-level and second-level liquid storage devices and a safety evaporator, and is characterized in that: CO2 is compressed by the first-level compressor to supercritical high pressure and high temperature and enters the condenser to realize primary heat exchange; and then the CO2 is cooled and subjected to secondary heat exchange by the evaporative condenser so that the CO2 steam is cooled to approach the critical temperature. The CO2 is subjected to heat exchange in the first-level safety heat exchanger and the first-level compressor and obtains a temperature below the critical temperature; then the CO2 passes through the drying filters and the electromagnetic valves, and is throttled and depressurized by the expansion valves; part of the gas enters the second-level safety heat exchanger and the second-level compressor for heat exchange; and after reaching a supercritical state, the CO2 enters the second-level safety heat exchanger. Part of the wet CO2 steam in the first-level compressor passes through the liquid storage devices, the drying filters and the electromagnetic valves, and is throttled and depressurized by the expansion valves before entering the safety evaporator for refrigeration.
Description
Technical field
The present invention relates to a kind of with CO
2Be the large-scale CO of the superposition type of refrigeration working medium
2Refrigeration (heat) machine set technology.With the 4th generation cold-producing medium be the present invention's (heat) machine set technology that freezes
Background technology
Energy-conservation enhancing and fossil energy with environmental consciousness along with the social development people is nervous, seriously polluted present situation, and country pays much attention to energy-conserving and environment-protective and presses for a kind of CO of utilization
2Substitute R
22, R
134aAs the large-scale CO of the superposition type of cold-producing medium
2Refrigeration (heat) unit.Do not see the large-scale CO of superposition type up till now as yet
2Refrigeration (heat) machine set technology report.
Summary of the invention
The objective of the invention is integrated CO
2Be the large-scale CO of the superposition type of cold-producing medium
2Refrigeration (heat) machine set technology, simple in structure, safety, environmental protection utilize regenerative resource outstanding effect technology.
The present invention includes 1 stage compressor, air-cooled condenser, evaporative condenser, 1 level security type heat exchanger, 1,2 grade of device for drying and filtering, 1,2 grade of magnetic valve, 1,2 grade of expansion valve, 2 stage compressors, 2 level security type heat exchangers, 1,2 grade of reservoir, safety-type evaporimeter, the large-scale CO of said superposition type
2Refrigeration (heat) machine set technology makes the environmental protection of refrigeration (heat) unit running process energy-conservation again.
The present invention is achieved through following proposal:
Gas working medium CO
2In 1 stage compressor by isentropic Compression to supercriticality (g-a process); High pressure-temperature exhaust after being compressed gets into air-cooled condenser (a following current wind) (a-b process), and this process realizes heat exchange for the first time, makes the refrigerant cools cooling; Then carry out the heat exchange second time and make CO with evaporative condenser
2Steam cooled arrives near critical-temperature (b-c process).Evaporative condenser mainly leans on cooling water to absorb high temperature CO at air evaporation
2Steam and carrying out, its cooling water temperature is lower, good effect of heat exchange.
CO after being cooled
2Gas gets into 1 level security type heat exchanger (this heat exchanger is my house journal, and high voltage bearing effect is arranged) and 1 stage compressor air-breathingly carries out heat exchange and makes CO
2Gas is further cooled to below the critical-temperature (c-d and f-g process); The refrigerant gas that is further cooled gets into expansion valve (d-e process) through device for drying and filtering, magnetic valve, and this process is that throttling step-down portion gas liquefaction simultaneously makes it become moist steam; Moist steam is advanced the delivery temperature of 2 level security type heat exchangers and 2 stage compressors and is carried out heat exchange (e-f and A-B process), freezes by the high-temperature gas that absorbs the secondary compressor exhaust outlet.
Gas working medium is compressed into supercriticality (on flow chart, being the D-A process) in 2 stage compressors; The compressor air-discharging of low temperature gets into 2 level security type heat exchangers (A-B process) subsequently, because the CO of lower temperature is provided by the one-level compression this moment
2So moist steam is can CO
2Body is cooled to the subcritical point, and the part gas liquefaction makes it become moist steam in temperature-fall period; Moist steam gets into expansion valve (B-C process) through reservoir, device for drying and filtering, magnetic valve, and this process becomes moist steam for the throttling step-down; Moist steam gets into safety-type evaporimeter (this evaporimeter is my house journal, and high voltage bearing effect is arranged) and vaporizes (C-D) by CO
2The heat absorption of cold-producing medium is freezed.Reservoir plays effects such as gas-liquid separation, additional cold-producing medium.
Description of drawings
Accompanying drawing is the large-scale CO of superposition type
2Refrigeration (heat) unit sketch map, do further to describe below in conjunction with the accompanying drawing and the specific embodiment:
Said CO
2Gas working medium is got into air-cooled condensation by isentropic Compression to the high pressure-temperature exhaust after critical condition and plays 2 in 1 stage compressor 1, realize heat exchange for the first time, it is cooled, then with evaporative condenser 3.Carry out heat exchange second time CO
2Steam cooled arrives near critical-temperature, evaporative condenser 3.The main cooling water that leans on absorbs high temperature CO at air evaporation
2Steam and carrying out; CO after said being cooled
2Get into 1 level security type heat exchanger 4, carry out heat exchange with 1 stage compressor 1 air-breathing and make CO
2Be cooled to back below the critical-temperature through device for drying and filtering 5; Magnetic valve 6 gets into throttling step-down portion gas liquefaction simultaneously in expansion valves 7 processes and makes it become the delivery temperature that moist steam gets into 2 level security type heat exchangers 8 and 2 stage compressors 9 to carry out heat exchange; By absorbing the high-temperature gas refrigeration of secondary compressor exhaust outlet, said CO
2In 2 stage compressors 9, be compressed into supercriticality; The compressor air-discharging of low temperature gets into 2 level security type heat exchangers 8 subsequently; The moist steam that this moment, 1 stage compressor provided is cooled to the subcritical point; The part gas liquefaction makes it become moist steam and also gets into expansion valves through reservoir 10, device for drying and filtering 11, magnetic valve 12 in the temperature-fall period, and the moist steam that the throttling step-down becomes in this process gets into safety-type evaporimeter 13, and the suction and pumping of leaning on of vaporizing are freezed; 11 vapor-liquid separation of reservoir are replenished effects such as cold-producing medium.
Claims (9)
1. large-scale CO of superposition type
2Refrigeration (heat) machine set technology.Comprise: said 1 stage compressor, air-cooled condenser, evaporating type condensing; 1 level security type heat exchanger, 1,2 grade of device for drying and filtering, 1,2 grade of magnetic valve, 1,2 grade of expansion valve; 2 level security type heat exchangers; 2 stage compressors, 2 level security type heat exchangers, refrigeration (heat) system of 1,2 grade of reservoir, safety-type evaporimeter.
2. according to claims 1 described 1 stage compressor, 2 stage compressors is characterized in that making CO
2Be compressed to supercriticality.
3. according to claims 1 described air-cooled condenser, it is characterized in that heat exchange for the first time makes CO
2Cooling.
4. according to claims 1 said evaporative condenser, it is characterized in that heat exchange for the second time makes CO
2Be cooled near critical-temperature.
5. according to claims 1 said 1,2 level security type heat exchangers, it is characterized in that carrying out heat exchange with 1,2 stage compressors air-breathing makes CO
2Gas cooled is below critical-temperature.
6. according to claims 5 said CO
2Gas is through 1 grade of device for drying and filtering; 1 grade of magnetic valve gets into 1 grade of expansion valve; It is characterized in that this process is that throttling step-down portion gas liquefaction simultaneously makes it become moist steam; Moist steam gets into the exhaust of 2 level security type heat exchangers and 2 stage compressors and carries out heat exchange, by absorbing the high-temperature gas refrigeration of secondary compressor exhaust.
7. according to claims 5,6 said safety-type evaporimeters.It is characterized in that CO
2Be compressed into the exhaust that supercriticality is characterized in that 2 stage compressors at 2 stage compressors and get into 2 level security type heat exchangers, have 1 stage compressor that the CO of lower temperature is provided this moment
2Moist steam makes it be cooled to the subcritical point.
8. get into 2 grades of expansion valves according to claims 7 said moist steams through 2 grades of reservoirs, 2 grades of devices for drying and filtering, 2 grades of magnetic valves, it is characterized in that this process is that moist steam entering safety-type evaporimeter is vaporized for the throttling step-down, depends on CO
2The gas absorption refrigeration.
9. it is characterized in that playing gas-liquid separation according to claims 1 said reservoir and replenish CO
2Effects such as gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105686692A CN102478320A (en) | 2010-11-30 | 2010-11-30 | Overlapping large CO2 refrigeration (heating) unit technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105686692A CN102478320A (en) | 2010-11-30 | 2010-11-30 | Overlapping large CO2 refrigeration (heating) unit technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102478320A true CN102478320A (en) | 2012-05-30 |
Family
ID=46091036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105686692A Pending CN102478320A (en) | 2010-11-30 | 2010-11-30 | Overlapping large CO2 refrigeration (heating) unit technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478320A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438598A (en) * | 2013-08-20 | 2013-12-11 | 中国科学院工程热物理研究所 | Cascading refrigerating system and method based on forward and reverse cycle coupling |
| CN108730759A (en) * | 2018-08-15 | 2018-11-02 | 河南省日立信股份有限公司 | Air-cooled carbon dioxide carburetion system and its vaporization constant temperature pressure regulation method |
-
2010
- 2010-11-30 CN CN2010105686692A patent/CN102478320A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438598A (en) * | 2013-08-20 | 2013-12-11 | 中国科学院工程热物理研究所 | Cascading refrigerating system and method based on forward and reverse cycle coupling |
| CN103438598B (en) * | 2013-08-20 | 2016-01-20 | 中国科学院工程热物理研究所 | Based on folding type cooling system and the method for just inverse circulation coupling |
| CN108730759A (en) * | 2018-08-15 | 2018-11-02 | 河南省日立信股份有限公司 | Air-cooled carbon dioxide carburetion system and its vaporization constant temperature pressure regulation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20090211276A1 (en) | System and method for managing water content in a fluid | |
| CN105135749B (en) | Carbon dioxide cold-hot combined supply system | |
| CN107024041A (en) | A kind of anti-condensation refrigeration system of data center | |
| JPWO2013108636A1 (en) | Refrigeration cycle equipment | |
| KR20120132035A (en) | Dual Heat Pump System Using Chiller | |
| CN102679639A (en) | Heat pump set of freon evaporating oil cooler for recycling heat emitted from screw compressor oil cooler | |
| JP4115242B2 (en) | Refrigeration system | |
| KR101634345B1 (en) | Absoption chiller using waste heat of compression type refrigerator | |
| CN206669949U (en) | Recovery type heat evaporating condensation type handpiece Water Chilling Units | |
| CN102478320A (en) | Overlapping large CO2 refrigeration (heating) unit technology | |
| CN106482384B (en) | Superposition type solution and serial double-effect lithium bromide absorption type refrigeration heat pump unit | |
| KR101218547B1 (en) | Composion refrigerator | |
| CN105371516B (en) | Carbon dioxide twin-stage cold-hot combined supply system | |
| CN201807261U (en) | Environmental emission reduction type gas dehumidification dust removal machine | |
| CN206803562U (en) | A kind of anti-condensation refrigeration system of data center | |
| CN206492360U (en) | A kind of petroleum vapor recovery adsorption condensing device | |
| JP2010116855A (en) | Gas turbine plant and method for increasing output thereof | |
| CN205090654U (en) | Cold and hot antithetical couplet of carbon dioxide doublestage supplies system | |
| WO2015026825A1 (en) | Microemulsion-enabled heat transfer | |
| CN207112767U (en) | Energy-saving cold-hot economic benefits and social benefits steam generator | |
| CN205655518U (en) | Air -cooled cold water or heat pump set with cross cold type structural system | |
| KR20090125312A (en) | Heating and cooling system | |
| CN101907367A (en) | Adsorption type thermal fluid self-cooling system | |
| CN206989470U (en) | A kind of ammonia compressor energy saver | |
| JPH10238368A (en) | Combined cycle system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120530 |