A kind of environment-friendly refrigeration composition
A composition and environmentally friendly technology, applied in chemical instruments and methods, heat exchange materials, etc., can solve the problems of high GWP value, small cooling capacity, strong flammability, etc. The effect of saving resources
Active Publication Date: 2022-02-18
ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI TECH +1
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The above-disclosed refrigeration mixtures have disadvantages such as high GWP value, strong flammability, low energy efficiency, or small volumetric refrigeration capacity, etc.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0046] Example 1: HFC-41 and HFO-1234ze(E) were physically mixed in a liquid phase at a molar percentage of 50:50.
Embodiment 2
[0047] Example 2: Physically mix HFC-41 and HFO-1234yf in a liquid phase at a molar percentage of 55:45.
Embodiment 3
[0048] Example 3: HFC-41 and HFE-143a were physically mixed in a liquid phase at a molar percentage of 60:40.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| boiling point | aaaaa | aaaaa |
| boiling point | aaaaa | aaaaa |
| critical temperature | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses an environment-friendly refrigeration composition, which contains 50% to 70% of monofluoromethane and 30% to 50% of trans-1,3,3,3-tetrafluoropropene, The second component of one, two or three of 2,3,3,3-tetrafluoropropene and trifluoromethyl ether, and the boiling point of the refrigeration composition is -55~-75°C and the GWP value ≤300. The refrigerating composition provided by the invention has low GWP value, superior refrigerating performance, weak flammability and high safety, and is suitable for replacing HFC-23 for refrigerating.
Description
technical field [0001] The invention relates to a refrigeration composition, in particular to an environment-friendly refrigeration composition. . Background technique [0002] -60~-80℃ low-temperature refrigeration system is widely used in medical, chemical, aerospace, aviation, military and other fields. In the vapor compression refrigeration cycle, when ordinary single-stage compression is used, problems such as a decrease in cooling capacity, an increase in energy consumption, and a decrease in energy efficiency ratio will occur as the pressure ratio increases. Generally, when the pressure ratio reaches 8 or more, It is necessary to use cascade refrigeration or automatic cascade refrigeration instead of ordinary single-stage compression to obtain low temperatures below -60°C. [0003] A cascade refrigeration system usually consists of two separate refrigeration systems, called a high-temperature stage and a low-temperature stage, respectively, and the high-temperature ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04
Inventor 郭智恺王勤乐文健谢品赞姚敏杰
Owner ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI TECH