CN1139648C - Envinonment protection type energy-saving refrigerant - Google Patents
Envinonment protection type energy-saving refrigerant Download PDFInfo
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- CN1139648C CN1139648C CNB001248480A CN00124848A CN1139648C CN 1139648 C CN1139648 C CN 1139648C CN B001248480 A CNB001248480 A CN B001248480A CN 00124848 A CN00124848 A CN 00124848A CN 1139648 C CN1139648 C CN 1139648C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention discloses an environment protection type energy-saving refrigerant prepared by physically mixing difluorochloromethane with two of the following substances in a liquid state according to corresponding proportions: propylene, 1, 1-difluoroethane and propane. The refrigerant of the present invention has the advantages of direct substitution, energy-saving performance, environmental protection, no toxicity, no corrosion on devices, high safety and easy and reliable replacement and installation and can solve the problem of high repacking expense in air-conditioner and freezing industry.
Description
Technical field
The present invention relates to refrigeration agent, refer to a kind of Envinonment protection type energy-saving refrigerant especially.
Background technology
In existing technology, R22, R12, R502, these outstanding refrigeration agents are widely used in central air-conditioning, domestic air conditioning, the deepfreeze refrigerating apparatus, its application is gradually improved, engineers is also understood day by day to its performance, but it also more and more causes people's worry to the destruction of atmospheric ozone layer, the Montreal Agreement book has clearly been stipulated time limit of service to it, limit its ODP value, it is extremely important that this makes that the proposition of novel refrigerant becomes, and it is significant for scientists to seek not only environmental protection but also refrigeration agent energy-conservation and easy to use; China is great powers in the world, and environmental protection is the responsibility that we should bear and must bear, but simultaneously China is again the country that an energy lacks, and refrigeration agent how to develop not only energy-conservation but also environmental protection is important missions to our refrigeration engineers.China has added revised Montreal Agreement book of nineteen ninety in June, 1991.Be the carry out earnestly international convention, State Council approved in 1993 " Chinese Ozone Depleting Substances progressively eliminate country ", regulation is later than 2010 most and eliminates whole CFC in this scheme; CFC present stage substitutes and mainly contains three directions: promptly be use HCFC, HFC, or hydrocarbon polymer, HFC just are meant hydrogen fluorine carbon species, and it is HFC-134a that its typical case represents, and the ODP value of this material is zero.HCFC is meant hydrochlorofluorocarazeotropic class material, and its typical case is represented as R22, and its ODP value is 0.05, that is equals 5% of CFC-11.Typical case's representative of hydrocarbon polymer is Trimethylmethane R600.On the CFC substitution problem, generally place hope on the HFC refrigeration agent with the manufacturer headed by several big companies such as Dupont, especially the HFC134a that has found out, its numbering at ASHRAE is R134a, but discovered R134a and the institute's alternate CFC refrigeration agent of wanting comparison afterwards, many 6-8% are wanted in power consumption, and R134a has special requirement to lubricating oil, incompatible with mineral lubricating oils that is widely used in refrigeration air conditioner compressor and Alkyl Benzene Lubricating Oil, this just makes that directly replacing the CFC refrigeration agent with it becomes impossiblely, and this alternative on equipment change basis is a very engineering of costliness for the refrigeration equipment owner.December 10 in 1997 end of day a global warming meeting that hold the Tokyo that country participates in arranged more than 150, HFC is defined as one of six kinds of greenhouse gases (other five kinds are: sulfurous gas, methane, nitrogen protoxide, PFC and sulfur hexafluoride).R134a belongs to this scope just.And hydrocarbon polymer has inflammable and explosive property, produces that to use storage and transport process to require high, and is not suitable for China's actual conditions.
Summary of the invention
The purpose of this invention is to provide a kind of energy-saving and environmental-friendly refrigeration agent, it has its energy-saving and environmental protection of proof of authenticity by a series of strictnesses of national authority mechanism of direct substituting this refrigeration agent, nontoxic, equipment is not corroded, safe, its energy-saving effect can guarantee that the user is issued to environmental requirement in the prerequisite of tool economic benefit, it changes the outfit easy with reliably can solve air-conditioning and high improvement expenses problem that freezing industry faced.
The object of the present invention is achieved like this: the present invention is a kind of near-azeotropic polybasic mix refrigerant, and for substituting the special exploitation of R22, it is applicable to the refrigeration equipment of most R22 and the refrigeration equipment of a spot of R502.Comprise following two kinds of schemes its concrete composition:
A kind of energy-saving and environmental-friendly refrigeration agent is characterized in that this refrigeration agent is two kinds that are mixed with in subordinate's material in difluorochloromethane, these materials are: propylene, 1,1 C2H4F2 C2H4F2, propane, above-mentioned each component is carried out physical mixed by its corresponding mixture ratio under liquid state.
Feature of the present invention is that also this refrigeration agent contains 4% propylene by weight percentage, 4% 1,1 C2H4F2 C2H4F2,92% difluorochloromethane.
This refrigeration agent contains the C2H4F2 C2H4F2 of 2-30% by weight percentage, the propane of 1-20%, the difluorochloromethane of 50-97%.
Propane among the present invention (R290), molecular formula CH
3CH
2CH
3, standard atmosphere is depressed boiling point-42.12 ℃, 96.8 ℃ of critical temperatures, emergent pressure 4.25MP, relative density (air) 1.56;
1,1 C2H4F2 C2H4F2 (R152a), molecular formula CHF
2CH
3, standard atmosphere is depressed boiling point-25.0 ℃, 113.5 ℃ of critical temperatures, emergent pressure 4.5MP, relative density (air) 2.28;
Propylene (R1270), molecular formula C
3H
6, standard atmosphere is depressed boiling point-47.6 ℃, 91.1 ℃ of critical temperatures, emergent pressure 4.62MP, relative density (air) 1.48;
Difluorochloromethane (R22), molecular formula CHCLF
2, standard atmosphere is depressed boiling point-40.8 ℃, 96.0 ℃ of critical temperatures, emergent pressure 4.92MP;
Refrigeration agent of the present invention, its preparation method are exactly above-mentioned individual component to be carried out the physical mixed can by its corresponding mixture ratio get final product under liquid state.
Embodiment
With two concrete experimental examples energy-saving effect of the present invention is described below.
Example one: refrigeration agent R300 of the present invention is by 60% difluorochloromethane, 20% C2H4F2 C2H4F2,20% propane, at national compressor cooling Equipment Inspection center the U.S. is flown to sing 3 cabinet-type air conditioners (the former refrigeration agent R22 that uses) and do basic contrast refrigeration agent R22 test according to GB and show, uses unit eer raising 11.14% behind the working medium R300 of the present invention.(this is that this center is the highest in ending a large amount of mix refrigerant detections both at home and abroad on September 20th, 2000)
Example two, in Jin Hai hotel, Hangzhou Shanghai is closed many Kai Li factory produce the HR225 handpiece Water Chilling Units change the outfit behind the refrigeration agent of the present invention with former reflect when comparing test with working medium R22 as follows:
1, test process:
(1) unit and the reading system basic data of R22 used in operation.
(2) evacuation system
(3) new working medium is annotated as going into system.
(4) adjust (expansion valve)
(5) operation new working medium and read basic data, as a comparison.
2, explanation:
Test is carried out under the certain situation of discharge, and the flow identification is by water meter identification that the user was equipped with
3. data logging:
| The kind of refrigeration agent | R22 (the former working medium of using) | The present invention's (new working medium) |
| Test duration | 0.5 hour | 0.5 hour |
| Envrionment temperature (℃) | 29.9℃ | 30.8℃ |
| The compressor air suction temperature (℃) | 7.9℃ | 8.0℃ |
| Vaporizer water outlet degree (℃) | 9.5℃ | 8.8℃ |
| The vaporizer return water temperature (℃) | 11.5℃ | 11.0℃ |
| Power of motor | 126.0KW | 126.0KW |
Annotate: the new working medium of the invention described above is: 92% difluorochloromethane, 4% C2H4F2 C2H4F2,4% propylene.
The refrigerating duty increased value:
Refrigerating duty Q=((specific heat at constant pressure of water) * M (quantity of circulating water) * Δ T (the import and export water temperature difference of vaporizer))
Energy Efficiency Ratio improvement value (energy-conservation)
Energy Efficiency Ratio COP=Q/W=refrigerating duty/power of motor
In sum, energy-saving and environmental-friendly refrigeration agent of the present invention is compared with existing R12, R505, R22 and is had following features:
1, environment aspect-do not contain CFC. ODP (depletion of the ozone layer coefficient), GWP value (global warming potential) all are lower than State Bureau of Environmental Protection, American National Environmental Protection Agency specified standard.
2, health, secure context-nontoxic
3, compatible aspect-very approaching with existing R12, R22, R502 cold-producing medium character need not change original lubricating oil, and compressor need not from new design, need not change original refrigeration plant.
4, chemical stability and heat endurance aspect are good, during use and the compatibility of material good, in use find no the corroding metal phenomenon, with lubricating oil and other compounds any reaction does not occur, with lubricating oil good compatibility is arranged, the good insulating of steam.
5, energy-saving index aspect-Energy Efficiency Ratio surpasses original index, refrigerant applications of the present invention is when using the refrigeration plants such as central air-conditioning of R22 cold-producing medium, its Energy Efficiency Ratio index is apparently higher than original R22 cold-producing medium (〉=10%), namely in the identical situation of consumed power, use its refrigerating capacitys of refrigeration plant such as central air-conditioning of the present invention obviously to improve; This cold-producing medium contrasts R22 under various air conditioning conditions all have obvious energy-saving effect.
6, product quality aspect-target level of product quality is higher than state-set standard.
7, process aspect-cold-producing medium process that changes the outfit that changes the outfit is very simple, and reading explanation can operate.
Claims (2)
1, a kind of Envinonment protection type energy-saving refrigerant is characterized in that, this refrigeration agent contain by weight percentage 4% propylene, 4% 1,1-C2H4F2 C2H4F2,92% difluorochloromethane.
2, a kind of Envinonment protection type energy-saving refrigerant is characterized in that, this refrigeration agent contain 1-20% by weight percentage propane, 2-30% 1, the difluorochloromethane of 1-C2H4F2 C2H4F2,50-97%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001248480A CN1139648C (en) | 2000-09-19 | 2000-09-19 | Envinonment protection type energy-saving refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001248480A CN1139648C (en) | 2000-09-19 | 2000-09-19 | Envinonment protection type energy-saving refrigerant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1286286A CN1286286A (en) | 2001-03-07 |
| CN1139648C true CN1139648C (en) | 2004-02-25 |
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ID=4590702
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001248480A Expired - Fee Related CN1139648C (en) | 2000-09-19 | 2000-09-19 | Envinonment protection type energy-saving refrigerant |
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| Country | Link |
|---|---|
| CN (1) | CN1139648C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048040A (en) * | 2017-11-15 | 2018-05-18 | 绵阳双甘科技有限公司 | A kind of energy conservation and environmental protection foaming agent |
-
2000
- 2000-09-19 CN CNB001248480A patent/CN1139648C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048040A (en) * | 2017-11-15 | 2018-05-18 | 绵阳双甘科技有限公司 | A kind of energy conservation and environmental protection foaming agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1286286A (en) | 2001-03-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040225 Termination date: 20100919 |