CN1740262A - Green refrigerant for small commercial refrigerator - Google Patents
Green refrigerant for small commercial refrigerator Download PDFInfo
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- CN1740262A CN1740262A CN 200510029292 CN200510029292A CN1740262A CN 1740262 A CN1740262 A CN 1740262A CN 200510029292 CN200510029292 CN 200510029292 CN 200510029292 A CN200510029292 A CN 200510029292A CN 1740262 A CN1740262 A CN 1740262A
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- refrigerant
- commercial refrigerator
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Abstract
The green refrigerant for small commercial refrigerator includes propane 54 wt%, isobutane R600a 45.5 wt% and tetrahydrothiophene THT 0.5 wt% to replace R134a; or includes propane 61 wt%, isobutane R600a 38.5 wt% and tetrahydrothiophene THT 0.5 wt% to replace R12. The present invention has refrigerating performance similar to that of R134a and R12, but has no destruction on ozone layer and greenhouse effect similar to CO2. The green refrigerant has simple mixing process, low consumption, low cost only 1/20 that of R134a, easily detected leakage and safety for use in small refrigerator.
Description
Technical field
What the present invention relates to is a kind of medicament of refrigeration technology field, specifically is a kind of environmental protection refrigerant that is used for small commercial refrigerator.
Background technology
CFCs and HCFCs refrigeration agent have destruction to ozonosphere, originally refrigeration agent R12 (freonll-11 CFC12) that generally uses and R22 (freonll-11 HCFC22) are eliminated or are about to the field of Refrigeration and Air-conditioning that is eliminated out, the refrigeration agent that extensively adopts in the field of Refrigeration and Air-conditioning has R134a (freonll-11 HFC134a) now, and HFC mixture refrigerant R404A (HFC125/HFC143a/HFC134a), R407C (HFC32/HFC125/HCF134a), R410A (HFC32/HFC125) etc., though these refrigeration agents do not have destruction to ozonosphere, but they all have very high Greenhouse effect, serious day by day along with global warming trend, these are considered to for a long time also to be faced with the situation of eliminating out refrigerating field for usefulness for refrigeration agent.In order to find suitable alternative refrigerants, many workers of refrigerating field have attempted various schemes.
Through the literature search of prior art is found that the Chinese patent publication number is the patent of invention of CN1412267A, this patent readme is as follows: " green mixed refrigerating agent; contain HFC13I, HFC134a, CO2; above three kinds of working medium in refrigeration system except that as the refrigeration agent, also as fire retardant.By HFC13I, HFC134a, CO
2The green mixed refrigerating agent of forming different constituent elements and component respectively with HC1270 (third is rare), HC170 (ethane), HC290 (propane).Different constituent elements adopt with component the different separately ear proportionings of rubbing.Beneficial effect of the present invention is, by introducing fire-retardant constituent element working medium, and the constituent element and the composition of variation mixture, on the source, eliminate the combustibility of working medium, composition is based on natural refrigerant, the all good HCs/ fire retardant mixing mediums of environmental characteristics, security and cycle performance are in order to substitute HCFC22 in air-conditioning system." this patent R13I, R134a and CO
2Form mix refrigerant with R1270 (third is rare), R170 (ethane) and R290 (propane) respectively, be used for substituting R22, but owing to contain R13I and R134a composition, mix refrigerant also has very high Greenhouse effect index, and because CO
2Under normal condensing temperature is supercritical gas, be difficult for condensation, and condensing pressure is higher relatively.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, propose a kind of environmental protection refrigerant that is used for small commercial refrigerator, make it not do any change, directly fill and substitute R134a and R12, and energy-saving effect also is better than R134a and R12 device.For Small Refrigerating Equipment, because charging amount is limited, even refrigeration agent is flammable, can not cause big danger yet, therefore can not consider the security of refrigeration agent, mix with alkane, add the stink agent of trace, when refrigeration agent leaks, find easily, can directly substitute R134a and R12 and be used for Small Refrigerating Equipment, can be used for vaporization temperature and reach-30 ℃ refrigeration plant (can be used for four stars refrigerator, refrigerator-freezer etc.).
The present invention is achieved by the following technical solutions, the present invention includes: the stink agent tetrahydrochysene thiophene phenol (THT) that often uses in the byproduct propane (R290) of petrochemical complex, Trimethylmethane (R600a) and the civilian natural gas liquids, each weight percentages of components: when substituting R134a, the weight ratio R290 of employing: R600a: the THT ratio is 54% ± 3%: 45.5% ± 3%: 0.5%; When substituting R12, the weight ratio R290 of employing: R600a: the THT ratio is 61% ± 3%: 38.5% ± 3%: 0.5%.
Mix refrigerant of the present invention can form product by two kinds of methods: the one, and in factory,, directly fill in use and get final product by canned after the accurate mixed; Second method can be separately canned with propane, Trimethylmethane and tetrahydrochysene thiophene phenol, and according to the weight of required filled refrigeration agent, the filled weight that calculates every kind of composition fills when filling.
The invention has the beneficial effects as follows: not only refrigeration performance is suitable with R12 with R134a to adopt the mix refrigerant of above ratio, and ozonosphere is not had destruction, its Greenhouse effect only with CO
2Quite, can be described as the refrigeration agent of absolute environmental protection.Refrigerant mixed is simple, and consumption is few, and is with low cost, has only the about 1/20 of R134a price, is very easy to find after the leakage, is used for Small Refrigerating Equipment safety, reduces apparatus cost.
Embodiment
Making method and methods for using them to mix refrigerant of the present invention specifies below.
Mix refrigerant of the present invention can directly be mixed in proportion in factory, is loaded on then in the steel cylinder, adopts the liquid method that fills when filling in refrigeration plant, prevents that composition changes when filled; Charging amount is about half of R134a and R12.
Also R290 and R600a and tetrahydrochysene thiophene phenol (THT) can be loaded on respectively in three steel cylinders, calculate the charging amount of mix refrigerant and the charging amount of every kind of composition when filled earlier, filled order is: fill R600a earlier, fill R290 again, last a small amount of tetrahydrochysene thiophene phenol (THT) that fills.
Embodiment 1
(1) weight percent of the preparation that will prepare is: 51%: 48.5%: 0.5%, be used for substituting R134a.
(2) preparation method is: strict with canned after this mixed in factory, fill again.
(3) implementation result: test result shows that after filling type substituted R134a, refrigerating duty was lower slightly than R134a by this prescription blended refrigeration agent, and low approximately by about 5%, COP is higher slightly than R134a, high about 2%.
Embodiment 2
(1) weight percent of the preparation that will prepare is: 57%: 42.5%: 0.5%, be used for substituting R134a.
(2) preparation method is: strict with canned after this mixed in factory, fill again.
(3) implementation result: test result shows that after filling type substituted R134a, refrigerating duty was higher slightly than R134a by this prescription blended refrigeration agent, and high approximately by about 6%, COP and R134a are suitable.
Embodiment 3
(1) weight percent of the preparation that will prepare is: 61%: 38.5%: 0.5%, be used for substituting R12.
(2) preparation method is: strict with canned after this mixed in factory, fill again.
(3) implementation result: test result shows that after filling type substituted R12, refrigerating duty was higher slightly than R12 by this prescription blended refrigeration agent, and high approximately by about 2%, COP and R12 are suitable.
Claims (5)
1. an environmental protection refrigerant that is used for small commercial refrigerator is characterized in that, comprising: propane R290, Trimethylmethane R600a and tetrahydrochysene thiophene phenol THT, its weight percent is: 54% ± 3%: 45.5% ± 3%: 0.5%.
2. the environmental protection refrigerant that is used for small commercial refrigerator according to claim 1 is characterized in that, the weight percent of propane R290, Trimethylmethane R600a and tetrahydrochysene thiophene phenol THT is: 51%: 48.5%: 0.5%.
3. the environmental protection refrigerant that is used for small commercial refrigerator according to claim 1 is characterized in that, the weight percent of propane R290, Trimethylmethane R600a and tetrahydrochysene thiophene phenol THT is: 57%: 42.5%: 0.5%.
4. an environmental protection refrigerant that is used for small commercial refrigerator is characterized in that, comprising: propane R290, Trimethylmethane R600a and tetrahydrochysene thiophene phenol THT, its weight percent is: 61% ± 3%: 38.5% ± 3%: 0.5%.
5. the environmental protection refrigerant that is used for small commercial refrigerator according to claim 4 is characterized in that, the weight percent of propane R290, Trimethylmethane R600a and tetrahydrochysene thiophene phenol THT is: 61%: 38.5%: 0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510029292 CN1740262A (en) | 2005-09-01 | 2005-09-01 | Green refrigerant for small commercial refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510029292 CN1740262A (en) | 2005-09-01 | 2005-09-01 | Green refrigerant for small commercial refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1740262A true CN1740262A (en) | 2006-03-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510029292 Pending CN1740262A (en) | 2005-09-01 | 2005-09-01 | Green refrigerant for small commercial refrigerator |
Country Status (1)
| Country | Link |
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| CN (1) | CN1740262A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798496A (en) * | 2010-04-12 | 2010-08-11 | 蒋志科 | Hydrocarbon refrigerant containing ethanol |
| CN102775964A (en) * | 2012-08-06 | 2012-11-14 | 江苏福瑞至环保新材料有限责任公司 | Hydrocarbon refrigerant with warning smell |
| CN103074038A (en) * | 2011-10-25 | 2013-05-01 | 珠海格力电器股份有限公司 | Novel environment-friendly refrigerant and air conditioning device |
| CN104559933A (en) * | 2013-10-20 | 2015-04-29 | 阴运和 | Environment-friendly dimethyl ether refrigerant |
-
2005
- 2005-09-01 CN CN 200510029292 patent/CN1740262A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798496A (en) * | 2010-04-12 | 2010-08-11 | 蒋志科 | Hydrocarbon refrigerant containing ethanol |
| CN103074038A (en) * | 2011-10-25 | 2013-05-01 | 珠海格力电器股份有限公司 | Novel environment-friendly refrigerant and air conditioning device |
| CN102775964A (en) * | 2012-08-06 | 2012-11-14 | 江苏福瑞至环保新材料有限责任公司 | Hydrocarbon refrigerant with warning smell |
| CN102775964B (en) * | 2012-08-06 | 2014-10-29 | 江苏福瑞至环保新材料有限责任公司 | Hydrocarbon refrigerant with warning smell |
| CN104559933A (en) * | 2013-10-20 | 2015-04-29 | 阴运和 | Environment-friendly dimethyl ether refrigerant |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |