CN101624513A - Carbon-hydrogen mixed refrigerant for vehicle air-conditioner and preparation method thereof - Google Patents
Carbon-hydrogen mixed refrigerant for vehicle air-conditioner and preparation method thereof Download PDFInfo
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- CN101624513A CN101624513A CN200910184065A CN200910184065A CN101624513A CN 101624513 A CN101624513 A CN 101624513A CN 200910184065 A CN200910184065 A CN 200910184065A CN 200910184065 A CN200910184065 A CN 200910184065A CN 101624513 A CN101624513 A CN 101624513A
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- refrigerant
- conditioner
- propylene
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- vehicle air
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Abstract
The invention discloses a carbon-hydrogen mixed refrigerant for a vehicle air-conditioner composed of propylene, dimethyl ether and perfluoropropane. The components have the mass percentages as follows: 10%-20% of propylene, 60%-80% of dimethly ether and 10%-20% of perfluoropropane. At the same time, the invention discloses a preparation method of the refrigerant. As hydrocarbon refrigerant for replacing R134a, the hydrocarbon refrigerant for a vehicle air-conditioner does not damage ozonosphere; the refrigerant for air-conditioner has the advantages of low greenhouse effect potential, low toxicity, energy conservation, excellent refrigeration performance and small consumption; compared with the traditional R134a refrigeration lubricant, the refrigerant for air-conditioner has good compatibility; and, for vehicle air-conditioners, the primary devices can be maintained and R134a can be replaced with perfusion refrigerant; besides, the preparation method is simple in process and low in cost.
Description
Technical field
The present invention relates to a kind of refrigeration agent, the carbon-hydrogen mixed refrigerant of especially a kind of alternative automative air conditioning R134a.This refrigeration agent has the thermodynamic property close with R134a, can realize that the direct filling type of R134a substitutes; Simultaneously, its hydrocarbon component can reduce the disadvantageous effect to environment widely.
Background technology
On July 2nd, 2007, UNEP (United Nations Environment Program) represented, since July 1, China stopped chlorofluorocarbon except that necessary purposes and the production of Ha Long, and this indicates that China has partly finished the target of arranging in the Montreal protocol of protection ozonosphere two years ahead.This is that Chinese industrial circle has experienced all transition and successfully carried out after the throe achievement that the refrigeration agent fluorochemical substitutes work sutdy, when we are filled with exultation, notices that also international community grows to even greater heights to the cry of accelerating to eliminate HFC.American-European countries has issued that also rules limit R134a and use in automative air conditioning.R134a has higher GWP value as HFC class refrigeration agent, unavoidably will become superseded material.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of alternative R134a is provided, is applicable to the carbon-hydrogen mixed refrigerant of air conditioning equipment of car, this refrigeration agent does not damage the ozone layer, Greenhouse effect potential is also lower, low toxicity, energy-conservation, refrigeration performance is good, consumption is little, with original R134a refrigeration lubricant good consistency is arranged, for automative air conditioning, need not to change existing equipment, can realize that filling type substitutes R134a.
The present invention is used for the carbon-hydrogen mixed refrigerant of automative air conditioning, is mixed by propylene, dme and pentafluoropropane and forms, and each constituent mass per-cent is:
Propylene 10%～20%;
Dme 60%～80%;
Pentafluoropropane (being fire retardant) 10%～20%.
The present invention is used for the preparation method of the carbon-hydrogen mixed refrigerant of automative air conditioning, the steps include: to get propylene, dme and the pentafluoropropane of liquid phase, mix according to constituent mass per-cent proportioning, filter successively then, dehydration, remix, second dehydration, secondary filtration, packing be finished product.
Described filtration: with technical grade propylene, dme, pentafluoropropane, adopting mechanical filter to filter, mainly is to filter mechanical impurity; Described dehydration: being the trace water of absorption in the raw material, 0.5% moisture content massfraction in the raw material is reduced to 0.001%, is to carry out in molecular sieve (4A) equipment is housed; Mix: dehydrated raw material is entered mixing tank, mix by clarifixator, after the mixing, carry out described second dehydration again, after molecular sieve adsorption, secondary filtration is identical with above-mentioned strainer again.
The invention belongs to natural refrigerant, ozonosphere is not had destruction, Greenhouse effect potential is also very low simultaneously.Prove with the contrast experiment of R134a under each operating mode of refrigeration (heat) under the same environment, on the identical unit, refrigerant pressure temperature working range of the present invention and R134a are approaching, and refrigerating duty, refrigeration efficiency are improved than EER, power input has reduction by a relatively large margin, and energy-saving effect is obvious.The carbon-hydrogen mixed refrigerant of R134a as an alternative, Greenhouse effect potential is lower, low toxicity, energy-conservation, refrigeration performance is good, consumption is little, with original R134a refrigeration lubricant good consistency is arranged, for automative air conditioning, need not to change existing equipment, can realize that filling type substitutes R134a.
Embodiment
Below in conjunction with embodiment, the present invention is elaborated.
Embodiment 1, be used for the carbon-hydrogen mixed refrigerant of automative air conditioning, mixed by propylene, dme and pentafluoropropane and form, each constituent mass per-cent is:
Propylene 12%;
Dme 68%;
Pentafluoropropane (being fire retardant) 20%.
Propylene (R1270) wherein, molecular formula C
3H
6, standard atmosphere is depressed boiling point-47.6 ℃, critical temperature: 92 ℃, and emergent pressure 4.62MP;
Dme (DME), molecular formula C
2H
6O, standard atmosphere depress boiling point-24.7 ℃, 127 ℃ of critical temperatures, emergent pressure 5.37MP;
Pentafluoropropane (R245), molecular formula C
3H
3F
5, standard atmosphere is depressed 58.8 ℃ of boiling points, 257 ℃ of critical temperatures, emergent pressure 464MP;
Present embodiment is used for the preparation method of the carbon-hydrogen mixed refrigerant of automative air conditioning, the steps include: to get propylene, dme and the pentafluoropropane of liquid phase, mix according to constituent mass per-cent proportioning, filter successively then, dehydration, remix, second dehydration, secondary filtration, packing be finished product.
Embodiment 2, substantially the same manner as Example 1, different is that each constituent mass per-cent is:
Propylene 10%;
Dme 70%;
Pentafluoropropane 20%.
Embodiment 3, substantially the same manner as Example 1, different is that each constituent mass per-cent is:
Propylene 15%;
Dme 70%;
Pentafluoropropane 15%.
Embodiment 4, substantially the same manner as Example 1, different is that each constituent mass per-cent is:
Propylene 10%;
Dme 80%;
Pentafluoropropane 10%.
Embodiment 5, substantially the same manner as Example 1, different is that each constituent mass per-cent is:
Propylene 20%;
Dme 60%;
Pentafluoropropane 20%.
Claims (2)
1, a kind of carbon-hydrogen mixed refrigerant that is used for automative air conditioning is made up of propylene, dme and pentafluoropropane mixing, and each constituent mass per-cent is:
Propylene 10%～20%;
Dme 60%～80%;
Pentafluoropropane 10%～20%.
2, the described preparation method who is used for the carbon-hydrogen mixed refrigerant of automative air conditioning of a kind of claim 1, the steps include: to get propylene, dme and the pentafluoropropane of liquid phase, mix according to constituent mass per-cent proportioning, filter successively then, dehydration, remix, second dehydration, secondary filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910184065A CN101624513A (en) | 2009-08-03 | 2009-08-03 | Carbon-hydrogen mixed refrigerant for vehicle air-conditioner and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910184065A CN101624513A (en) | 2009-08-03 | 2009-08-03 | Carbon-hydrogen mixed refrigerant for vehicle air-conditioner and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101624513A true CN101624513A (en) | 2010-01-13 |
Family
ID=41520510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910184065A Pending CN101624513A (en) | 2009-08-03 | 2009-08-03 | Carbon-hydrogen mixed refrigerant for vehicle air-conditioner and preparation method thereof |
Country Status (1)
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| CN (1) | CN101624513A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974718A (en) * | 2015-06-30 | 2015-10-14 | 太原理工大学 | Refrigerant and applications thereof |
| CN106479443A (en) * | 2016-09-29 | 2017-03-08 | 太原理工大学 | A kind of environment protection energy-saving type heat pump mixed working fluid and its application |
-
2009
- 2009-08-03 CN CN200910184065A patent/CN101624513A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974718A (en) * | 2015-06-30 | 2015-10-14 | 太原理工大学 | Refrigerant and applications thereof |
| CN104974718B (en) * | 2015-06-30 | 2018-10-23 | 太原理工大学 | A kind of refrigerant and its application |
| CN106479443A (en) * | 2016-09-29 | 2017-03-08 | 太原理工大学 | A kind of environment protection energy-saving type heat pump mixed working fluid and its application |
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Application publication date: 20100113 |