阅读说明：本技术 一种三元环保制冷剂及其制备方法 (Ternary environment-friendly refrigerant and preparation method thereof ) 是由 李�杰 任江伟 牛宝联 张忠斌 杨震超 于 2021-08-27 设计创作，主要内容包括：本发明涉及制冷剂技术领域,尤其涉及一种三元环保制冷剂及其制备方法。该制冷剂按质量百分比配方为：R744CO-(2) 45％-55％；R32二氟甲烷29-33％；R170乙烷17-22％。本发明提供的制冷剂可以有效替代R410A制冷剂使用,并且在使用过程中,产生的GWP值与R410A制冷剂相比明显降低,从而可以减少对环境带来的影响,并且其所使用的各原料,CO2、R32和R170,均可以市面上直接采购,其成本较低,需使用专业设备按照配比在合适的压力下进行直接混合均匀后即可进行使用。(The invention relates to the technical field of refrigerants, in particular to a ternary environment-friendly refrigerant and a preparation method thereof. The refrigerant comprises the following components in percentage by mass: r744CO 2 45% -55%; 29-33% of R32 difluoromethane; 17-22% of R170 ethane. 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, namely CO2, R32 and R170, can be purchased directly from the market, are low in cost, and can be used after being directly and uniformly mixed at proper pressure according to a ratio by using professional equipment.)

1. The ternary environment-friendly refrigerant is characterized by being named as AHC-1 and comprising the following components in percentage by mass:

R744 CO₂：45％-55％；

r32 difluoromethane: 29 to 33 percent;

r170 ethane: 17 to 22 percent.

2. The ternary environment-friendly refrigerant as claimed in claim 1, wherein the refrigerant comprises the following components in percentage by mass:

R744 CO₂：49％-52％；

r32 difluoromethane: 29 to 31 percent;

r170 ethane: 19 to 21 percent.

3. The ternary environment-friendly refrigerant according to claim 1 or 2, wherein R744CO is₂Is 50 percent.

4. The ternary environment-friendly refrigerant as claimed in claim 1 or 2, wherein the mass percentage of R32 difluoromethane is 30%.

5. The ternary environment-friendly refrigerant according to claim 1 or 2, wherein the mass percentage of the R170 ethane is 20%.

6. A method for preparing the ternary environment-friendly refrigerant as claimed in claim 1 or 2, characterized in that the preparation method comprises: adding the raw materials into a mixing device according to the required mass ratio, and uniformly mixing under pressure to obtain the ternary environment-friendly refrigerant AHC-1.

7. The production method according to claim 6, wherein the mixing temperature in the mixing device is set to 20 to 29 ℃.

Technical Field

The invention relates to the technical field of refrigerants, in particular to a ternary 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 of people, people begin to continuously research and select a more environmental-friendly refrigerant, the currently commonly used refrigerant is R410A, which is a novel environmental-friendly refrigerant and consists of 50% of R32 and 50% of R125, does not destroy the ozone layer, has the working pressure about 1.6 times that of a common R22 air conditioner, has high refrigerating (warming) effect, has the characteristics of stability, no toxicity, excellent performance and the like, does not react with ozone because of no chlorine element, namely does not destroy the ozone layer, R410A is the most appropriate refrigerant which is internationally recognized so far to replace R22, and has better application prospect, but R410A has higher greenhouse effect in the using process, and has the GWP (global warming potential) of 1730 and higher 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 problems, the invention provides a ternary environment-friendly refrigerant which can reduce the greenhouse effect generated in the using process and save the cost.

The invention adopts the following technical scheme: a ternary environment-friendly refrigerant is named AHC-1 and comprises the following components in percentage by mass:

R744 CO₂：45％-55％；

r32 difluoromethane: 29 to 33 percent;

r170 ethane: 17 to 22 percent.

Preferably, the refrigerant comprises the following components in percentage by mass:

R744 CO₂：49％-52％；

r32 difluoromethane: 29 to 31 percent;

r170 ethane: 19 to 21 percent.

Preferably, R744CO₂Is 50 percent.

Preferably, the mass percentage of R32 difluoromethane is 30%.

Preferably, the mass percentage of R170 ethane is 20%.

The invention also provides a preparation method of the ternary 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 ternary environment-friendly refrigerant AHC-1.

Preferably, the mixing temperature in the mixing device is set to 20 to 29 ℃.

The invention has the beneficial effects that:

CO₂is a natural refrigerant, commonly referred to as R744 refrigerant, and has a lowest GWP of only 1. R744 is nontoxic and can not decompose irritant substances, and has no damage to atmospheric ozone layer. 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. R170 belongs to the hydrocarbon refrigerant, in particular ethane, formula C₂H₆It has no damage to ozone layer and very small greenhouse effect. Because R170 is flammable, the lubricating oil is generally only used in low-temperature refrigeration equipment with a small liquid filling amount or used as a component of a low-temperature mixed refrigerant, and the R170 is compatible with the traditional lubricating oil.

The refrigerant adopts R744, R32 and R170 as raw materials to be mixed to prepare the ternary refrigerant, the refrigerant can effectively replace R410A refrigerant for use, and the GWP value generated in the use process is obviously reduced compared with that of R410A refrigerant, so that the influence on the environment can be reduced, and the refrigerant is an environment-friendly refrigerant.

Meanwhile, the ternary environment-friendly refrigerant provided by the invention has the advantages that the used raw materials, namely R744, R32 and R170, can be purchased directly from the market, the cost is low, the ternary environment-friendly refrigerant can be used only by directly and uniformly mixing the raw materials at a proper pressure according to a ratio 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

50 percent of CO by mass percentage₂30 percent of R32 and 20 percent of R170 are added into a mixing device according to the proportion under the liquid state, pressurized and mixed at 25 ℃, and after uniform mixing, the finished product of the ternary environment-friendly refrigerant is obtained.

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

By mass percent, 45 percent of CO₂Adding 33% of R32 and 22% of R170 into a mixing device according to the proportion under the liquid state, pressurizing and mixing at 20 ℃, and uniformly mixing to obtain the ternary environment-friendly refrigerant finished product.

The refrigerant cost in this embodiment 2 is low compared to the R410A refrigerant. The refrigerant is detected to generate 13% of GWP when used as R410A.

Example 3

By mass percent, 55 percent of CO₂28 percent of R32 and 17 percent of R170 are added into a mixing device according to the proportion in a liquid state, all the raw materials are in a liquid state, pressurized and mixed at 30 ℃, and after uniform mixing, a ternary environment-friendly refrigerant finished product is obtained.

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

54 percent of CO by mass percentage₂28 percent of R32 and 18 percent of R170 are added into a mixing device according to the proportion under the liquid state, pressurized and mixed at 25 ℃, and after uniform mixing, the finished product of the ternary environment-friendly refrigerant is obtained.

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

53 percent of CO by mass₂30 percent of R32 and 17 percent of R170 are added into a mixing device according to the proportion under the liquid state, pressurized and mixed at 24 ℃, and after uniform mixing, the finished product of the ternary environment-friendly refrigerant is obtained.

The refrigerant cost in this embodiment 5 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 6

By mass percent, 52 percent of CO₂30 percent of R32 and 18 percent of R170 are added into a mixing device according to the proportion under the liquid state, pressurized and mixed at 24 ℃, and after uniform mixing, the finished product of the ternary 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 12% of R410A when used alone.

Example 7

51 percent of CO by mass percentage₂29 percent of R32 and 20 percent of R170 are added into a mixing device according to the proportion under the liquid state, pressurized and mixed at the temperature of 27 ℃, and after uniform mixing, the finished product of the ternary environment-friendly refrigerant is obtained.

The refrigerant cost in this embodiment 7 is low compared to the R410A refrigerant. The refrigerant is detected to generate GWP of 12% of R410A when used alone.

Example 8

50 percent of CO by mass percentage₂28 percent of R32 and 22 percent of R170 are added into a mixing device according to the proportion under the liquid state, pressurized and mixed at 29 ℃, and after uniform mixing, the finished product of the ternary environment-friendly refrigerant is obtained.

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

By mass percent, 48 percent of CO₂And adding 33% of R32 and 19% of R170 into a mixing device according to the proportion in a liquid state, performing pressure mixing at 23 ℃, and uniformly mixing to obtain a ternary environment-friendly refrigerant finished product.

The refrigerant cost in this embodiment 9 is low compared to the R410A refrigerant. The refrigerant is detected to generate 13% of GWP when used as R410A.

Example 10

46 percent of CO by mass percentage₂Adding 33% of R32 and 21% of R170 into a mixing device according to the proportion under the liquid state, pressurizing and mixing at 28 ℃, and obtaining a finished product of the ternary environment-friendly refrigerant after uniform mixing.

The refrigerant cost in this embodiment 10 is low compared to the R410A refrigerant. The refrigerant is detected to generate 13% of GWP when used as R410A.

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 the GWP, i.e. the global warming potential, is only 11% -13% 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) Compared with the prior art, the COP energy efficiency ratio is improved by more than 11 percent and is 2 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.