CN114316905A - Mixed environment-friendly refrigerant and preparation method thereof - Google Patents
Mixed environment-friendly refrigerant and preparation method thereof Download PDFInfo
- Publication number
- CN114316905A CN114316905A CN202111465680.0A CN202111465680A CN114316905A CN 114316905 A CN114316905 A CN 114316905A CN 202111465680 A CN202111465680 A CN 202111465680A CN 114316905 A CN114316905 A CN 114316905A
- Authority
- CN
- China
- Prior art keywords
- refrigerant
- mixed environment
- friendly
- environment
- mass
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to the technical field of refrigerants, in particular to a mixed environment-friendly refrigerant and a preparation method thereof. The refrigerant comprises the following components in percentage by mass: propane R127070% -80%; and 3220% -30% of difluoromethane R. The refrigerant provided by the invention can effectively replace R410A refrigerant, and in the using process, the generated GWP value is obviously reduced compared with that of R410A refrigerant, so that the influence on the environment can be reduced, and the used raw materials, R1270 and R32, can be purchased directly from the market, have lower cost, can be used after being directly and uniformly mixed at proper pressure by using professional equipment according to the proportion, and have wide application prospect.
Description
Technical Field
The invention relates to the technical field of refrigerants, in particular to a mixed environment-friendly refrigerant and a preparation method thereof.
Background
Refrigerants, also called refrigerants, refrigerants and snow, are medium substances for completing energy conversion in various heat engines, and these substances usually increase power by reversible phase change (such as gas-liquid phase change), such as steam in a steam engine, snow in a refrigerator, and the like, and a general steam engine releases heat energy of steam and converts the heat energy into mechanical energy to generate motive power when in operation; the snow of the refrigerator is used for transmitting heat at a low temperature to a high temperature.
With the continuous enhancement of the environmental protection concept, people are continuously researching, developing and selecting more environmental protection refrigerants. The conventional refrigerant is R410A, which is a novel environment-friendly refrigerant and consists of 50% of R32 and R125 respectively. R410A does not damage the ozone layer, the working pressure is about 1.6 times of that of the ordinary R22 air conditioner, the refrigerating (heating) effect is high, and the air conditioner has the characteristics of stability, no toxicity, excellent performance and the like. Because the chlorine element is not contained, the ozone generating agent can not react with ozone, namely, the ozone layer can not be damaged. And R410A is internationally recognized so far to replace the most suitable refrigerant of R22, and has better application prospect. However, R410A has a high greenhouse effect during use, has a GWP (global warming potential) of 1730, and is relatively high in cost.
Therefore, it is an urgent problem to develop an environment-friendly refrigerant that can reduce the greenhouse effect generated during the use and save the cost, and can effectively replace the R410A refrigerant.
Disclosure of Invention
In order to solve the above problems, the present invention provides a mixed environment-friendly refrigerant that can reduce the greenhouse effect generated during use and save cost.
The invention adopts the following technical scheme: the mixed environment-friendly refrigerant is characterized by comprising the following components in percentage by mass:
propane R1270: 70% -80%;
difluoromethane R32: 20 to 30 percent.
Preferably, the refrigerant comprises the following components in percentage by mass:
propane R1270: 72% -78%;
difluoromethane R32: 22 to 28 percent.
Preferably, the mass percent of propane R1270 is 75% and the mass percent of difluoromethane R32 is 25%.
Preferably, the mass percent of propane R1270 is 78% and the mass percent of difluoromethane R32 is 22%.
The invention also provides a preparation method of the mixed environment-friendly refrigerant, which comprises the following steps: adding the raw materials into a mixing device according to the required mass ratio, and uniformly mixing under pressure to obtain the mixed environment-friendly refrigerant.
Preferably, the mixing temperature in the mixing device is set to 20 to 29 ℃.
The invention has the beneficial effects that:
r1270 is propane, belongs to hydrocarbon refrigerant, and has a chemical formula C3H6It has no damage to ozone layer and very small greenhouse effect. Because R1270 is flammable, it is generally used only in low-temperature refrigeration equipment with a small liquid filling amount, orAs a component of the low-temperature mixed refrigerant, R170 is compatible with the traditional lubricating oil. R32 is a halogenated hydrocarbon, specifically difluoromethane, formula CH2F2The refrigerant is a gas at normal temperature, is a colorless transparent liquid under self pressure, is easy to dissolve in oil and insoluble in water, and is a refrigerant with zero ozone loss potential.
The refrigerant adopts R1270 and R32 as raw materials to be mixed to prepare the binary mixed refrigerant, the refrigerant can effectively replace R410A refrigerant to be used, and the GWP value generated in the using process is obviously reduced compared with the refrigerant R410A, thereby reducing the influence on the environment and being environment-friendly refrigerant.
Meanwhile, the mixed environment-friendly refrigerant provided by the invention has the advantages that the used raw materials, namely R1270 and R32, can be purchased directly from the market, the cost is low, the mixed environment-friendly refrigerant can be used only by directly and uniformly mixing the raw materials according to a proper ratio and under a proper pressure by using professional equipment, and the application prospect is wide.
Detailed Description
The technical solution of the present invention is described in more detail with reference to the following embodiments.
Example 1
Adding 72% of R1270 and 28% of R32 into a mixing device according to the proportion in a liquid state, pressurizing and mixing at 25 ℃, and uniformly mixing to obtain a finished product of the mixed environment-friendly refrigerant.
The refrigerant cost in this embodiment 1 is low compared to the R410A refrigerant. The refrigerant is detected to generate GWP of 12% of R410A when used alone.
Example 2
Adding 73% of R1270 and 27% of R32 into a mixing device according to the proportion in a liquid state, pressurizing and mixing at 20 ℃, and uniformly mixing to obtain a finished product of the mixed environment-friendly refrigerant.
The refrigerant cost in this embodiment 2 is low compared to the R410A refrigerant. The refrigerant is detected to generate the GWP of 11% of the GWP of R410A when the refrigerant is used alone.
Example 3
Adding 74% of R1270 and 26% of R32 into a mixing device according to the proportion in a liquid state, wherein all the raw materials are in the liquid state, pressurizing and mixing at 22 ℃, and uniformly mixing to obtain a finished product of the mixed environment-friendly refrigerant.
The refrigerant cost in this embodiment 3 is low compared to the R410A refrigerant. The refrigerant is detected to generate the GWP of 11% of the GWP of R410A when the refrigerant is used alone.
Example 4
Adding 75% of R1270 and 25% of R32 into a mixing device according to the proportion in a liquid state, pressurizing and mixing at 25 ℃, and uniformly mixing to obtain a finished product of the mixed environment-friendly refrigerant.
The refrigerant cost in this embodiment 4 is low compared to the R410A refrigerant. The refrigerant is detected to generate the GWP of 11% of the GWP of R410A when the refrigerant is used alone.
Example 5
Adding 76% of R1270 and 24% of R32 into a mixing device according to the mass percent in a liquid state according to the proportion, performing pressure mixing at 24 ℃, and uniformly mixing to obtain a finished product of the mixed environment-friendly refrigerant.
The refrigerant cost in this embodiment 5 is low compared to the R410A refrigerant. The refrigerant is detected to generate GWP of 10% of R410A when used alone.
Example 6
77% of R1270 and 23% of R32 are added into a mixing device according to the proportion in a liquid state, pressurized and mixed at the temperature of 23 ℃, and after uniform mixing, a finished product of the mixed environment-friendly refrigerant is obtained.
The refrigerant cost in this embodiment 6 is low compared to the R410A refrigerant. The refrigerant is detected to generate GWP of 10% of R410A when used alone.
Example 7
Adding 78% of R1270 and 22% of R32 into a mixing device according to the proportion in a liquid state, pressurizing and mixing at 27 ℃, and uniformly mixing to obtain a finished product of the mixed environment-friendly refrigerant.
The refrigerant cost in this embodiment 7 is low compared to the R410A refrigerant. The refrigerant is detected to generate GWP of 9% of R410A when used alone.
Example 8
Adding 74% of R1270 and 26% of R32 into a mixing device according to the mass percent under liquid state according to the proportion, carrying out pressure mixing at 29 ℃, and obtaining a finished product of the mixed environment-friendly refrigerant after uniform mixing.
The refrigerant cost in this embodiment 8 is low compared to the R410A refrigerant. The refrigerant is detected to generate the GWP of 11% of the GWP of R410A when the refrigerant is used alone.
Example 9
Adding 75% of R1270 and 25% of R32 into a mixing device according to the proportion in a liquid state, pressurizing and mixing at 20 ℃, and uniformly mixing to obtain a finished product of the mixed environment-friendly refrigerant.
The refrigerant cost in this embodiment 9 is low compared to the R410A refrigerant. The refrigerant is detected to generate GWP of 10% of R410A when used alone.
Example 10
Adding 72% of R1270 and 28% of R32 into a mixing device according to the proportion in a liquid state, pressurizing and mixing at 28 ℃, and uniformly mixing to obtain a finished product of the mixed environment-friendly refrigerant.
The refrigerant cost in this embodiment 10 is low compared to the R410A refrigerant. The refrigerant is detected to generate GWP of 12% of R410A when used alone.
The refrigerant prepared in examples 1-10 above and R410A were tested for their properties and the following data were obtained:
it can be seen that the refrigerants prepared in examples 1-10 of the present invention have lower boiling points than R410A, and have GWP, i.e. global warming potential, of only 9.5% -12.2% of that of R410A, and the GWP is significantly reduced, which shows that the refrigerants prepared in the present invention are more environment-friendly. With R22 refrigerant (chlorodifluoromethane, CHClF)2) In contrast, the COP energy efficiency ratio is improved by about 10%, which is 1.7 times of the improvement amount of R410A.
The above embodiments are only used to illustrate the technical solutions of the present invention, and do not limit the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The mixed environment-friendly refrigerant is characterized by comprising the following components in percentage by mass:
propane R1270: 70% -80%;
difluoromethane R32: 20 to 30 percent.
2. The mixed environment-friendly refrigerant as claimed in claim 1, wherein the refrigerant comprises the following components in percentage by mass:
propane R1270: 72% -78%;
difluoromethane R32: 22 to 28 percent.
3. A mixed environment-friendly refrigerant as claimed in claim 1 or 2, wherein the propane R1270 is 75% by mass and the difluoromethane R32 is 25% by mass.
4. A mixed environment-friendly refrigerant as claimed in claim 1 or 2, wherein the propane R1270 is 78% by mass and the difluoromethane R32 is 22% by mass.
5. A method for preparing the mixed environment-friendly refrigerant as claimed in claim 1 or 2, wherein the method comprises the following steps: adding the raw materials into a mixing device according to the required mass ratio, and uniformly mixing under pressure to obtain the mixed environment-friendly refrigerant.
6. The production method according to claim 4, wherein the mixing temperature in the mixing device is set to 20 to 29 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111465680.0A CN114316905A (en) | 2021-12-03 | 2021-12-03 | Mixed environment-friendly refrigerant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111465680.0A CN114316905A (en) | 2021-12-03 | 2021-12-03 | Mixed environment-friendly refrigerant and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114316905A true CN114316905A (en) | 2022-04-12 |
Family
ID=81047737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111465680.0A Pending CN114316905A (en) | 2021-12-03 | 2021-12-03 | Mixed environment-friendly refrigerant and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114316905A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115287041A (en) * | 2022-07-21 | 2022-11-04 | 北京大学南昌创新研究院 | Mixed refrigerant replacing R410A and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775268A (en) * | 2010-01-12 | 2010-07-14 | 山东东岳化工有限公司 | Refrigerant compound for substituting for R410A |
| CN101781548A (en) * | 2010-03-19 | 2010-07-21 | 华中科技大学 | Refrigerant |
| KR20140015784A (en) * | 2012-07-24 | 2014-02-07 | 한국해양과학기술원 | Mixed refrigerant for a refrigerator, air conditioner and power plant |
| CN113604201A (en) * | 2021-09-15 | 2021-11-05 | 珠海格力电器股份有限公司 | Mixed refrigerant and air conditioning system |
-
2021
- 2021-12-03 CN CN202111465680.0A patent/CN114316905A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775268A (en) * | 2010-01-12 | 2010-07-14 | 山东东岳化工有限公司 | Refrigerant compound for substituting for R410A |
| CN101781548A (en) * | 2010-03-19 | 2010-07-21 | 华中科技大学 | Refrigerant |
| KR20140015784A (en) * | 2012-07-24 | 2014-02-07 | 한국해양과학기술원 | Mixed refrigerant for a refrigerator, air conditioner and power plant |
| CN113604201A (en) * | 2021-09-15 | 2021-11-05 | 珠海格力电器股份有限公司 | Mixed refrigerant and air conditioning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115287041A (en) * | 2022-07-21 | 2022-11-04 | 北京大学南昌创新研究院 | Mixed refrigerant replacing R410A and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101823955B1 (en) | Compositions containing difluoromethane and fluorine substituted olefins | |
| CN107987798B (en) | Environment-friendly mixed refrigerant | |
| US20160194541A1 (en) | Heat-transfer compositions exhibiting improved miscibility with the lubricating oil | |
| CA2761478A1 (en) | Hydrofluorocarbon refrigerant compositions for heat pump water heaters | |
| CN114316905A (en) | Mixed environment-friendly refrigerant and preparation method thereof | |
| CN110845997B (en) | Heat transfer medium and composition suitable for cooler | |
| CN113755137B (en) | Ternary environment-friendly refrigerant and preparation method thereof | |
| CN113388371A (en) | Quaternary mixed refrigerant capable of replacing R22 or R410a and application thereof | |
| CN114605964B (en) | Environment-friendly mixed refrigerant, refrigerating system, energy efficiency improving method and refrigerating equipment | |
| JP6856294B1 (en) | Thermal medium | |
| CN113637458A (en) | Refrigerating working medium, refrigerating device and application | |
| CN110194948A (en) | For heat driven heat pump ternary mix working medium in a kind of distributed energy resource system | |
| CN110272722A (en) | A kind of environment-protecting mixed refrigerating agent | |
| KR101421797B1 (en) | Mixed refrigerant for a refrigerator, air conditioner and power plant | |
| CN113265226B (en) | Refrigerant, preparation method thereof and refrigerating device | |
| KR101296520B1 (en) | Mixed refrigerant | |
| CN101302423B (en) | Working substance for thermal syphon type energy recovery apparatus | |
| CN113717693B (en) | Mixed refrigerant and application thereof | |
| CN116574486A (en) | Environment-friendly mixed refrigerant for replacing R290 | |
| CN114196382B (en) | Composition containing 1, 3-hexafluoroisopropyl methyl ether and application thereof | |
| CN113025279B (en) | Composition containing fluoroolefin and preparation method thereof | |
| AU2016231462B2 (en) | Heat-transfer compositions exhibiting improved miscibility with the lubricating oil | |
| CN112961655A (en) | Refrigerant | |
| CN115851234A (en) | Multi-element mixed refrigerant and preparation method thereof | |
| CN111019610A (en) | Energy-saving environment-friendly mixed refrigerant with temperature application range of-17 ℃ to-42 DEG C |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |