Will change as refrigerant R22 and R134a has a comprehensive analysis: the road to the future

refrigerant is also called the refrigerating agent, commonly known as snow in some areas of the south. It is a cycle in the refrigeration system and through its own change of state in order to realize the

refrigeration work material. Refrigerant in the evaporator absorbed by the cooling medium ( With air or water, etc. ) Heat and vaporization, heat transfer in the condenser to

ambient air or water and condensation, environmental problems are attention by more and more people now, in some parts of the government also issued a blanket ban fluorine policy laws,

but the fluorine is not only the concept of error, and lead to the application of the broad masses of users and manufacturers. This article from the concept of freon, international convention, national policy,

application of commonly used features of refrigerant R22 and R134a has a comprehensive analysis. A, the concept of freon

freon is saturated hydrocarbons ( Hydrocarbons) The floorboard of the halogen derivative. At present, the domestic many users are required to produce use the environmental protection such as everything

refrigerant, the reason is that respond to a nation called on to protect the environment. Actually freon R22 and R134a has a family member, as part of the hydrogen CFCS. From freon

you can see, the definition of it is now the so-called green refrigerant everything, r410a and R407C actually belong to the family of freon. So the forbidden fluorine

this concept confuse the ban should not be banned content.

freon is able to destroy ozone because CL elements contained in the refrigerant, and with the increase of CL atom number of ozone depletion ability

will increase, with the increase of H element content of ozone depletion ability; The greenhouse effect is mainly due to the refrigerant in the process of slow oxidation decomposition,

generate large amounts of greenhouse gases, such as CO2, etc.

according to the different molecular structure, freon refrigerant can be roughly divided into the following three categories: 1. CFCS classes: referred to as 'CFC, mainly including the R11, R12, R113,

? , R115, R500, R114,

because of its effect on the destruction of the ozone layer *, has been the Montreal protocol as a kind of controlled substances. This kind of material has been gradually to ban the use of our country.

2。 Hydrogen CFCS: as for short, mainly including R22,

R123, R141b and R142b, ozone depletion coefficient is only a few percent of R11, therefore, the China national plan to phase out the ozone-layer-depleting substances

will be as kind of substance as CFC class * important transitional alternative material.

3。 Hydrogen fluoride hydrocarbons, referred to as 'HFC, mainly includes everything, R125, R32, R407C, R410A, R152, ozone depletion coefficient is 0,

but warming ozeme depletion potential is higher.

all refrigerants used in our country at present, Including environmental refrigerant) All are freon products, ideal of freon refrigerant so far

has not been developed. Before the new refrigerant developed, we have to solve is air conditioning unit to choose that kind of refrigerant, for our survival

environmental damage caused by relatively small.

3, the application of R22 and R134a has a characteristic difference

it is very hard to choose an appropriate refrigerant replacement, must consider many factors and comprehensive evaluation, and should not only conform to the ozone-depleting ozeme depletion potential ( ODP) ,

the global warming ozeme depletion potential ( GWP) Requirements, at the same time should also consider the thermal properties, toxicity, flammability, compatibility, investment and operation cost, etc.

below to the application of R22 and R134a has a characteristic analysis is as follows 1, R134a has a global warming ozeme depletion potential ( GWP) To zero. 25, R22 is 0. 36, both belong to the greenhouse gases. 2, everything of ozone-depleting ozeme depletion potential ( ODP) 0, R22 is 0. 6, this is the reason for everything become environmentally friendly refrigerants.

3, R134a has a specific volume is 1 of R22. 47 times, and the latent heat of evaporation is small, so everything refrigerating capacity of the unit is only 60% of R22 unit.

press unit refrigerating capacity price computation, R22 unit price about everything about 60% of the unit.

4, R134a has a thermal conductivity than R22 fell by 10%, so everything of the unit heat exchanger heat transfer area need to be more big. 5, R134a has a strong water imbibition, 20 times that of R22, so greater demands of the dryer in the unit system, to avoid ice blocking phenomenon.

6, everything is larger than that of R22 in rubber material swelling effect is stronger, in actual operation and mid-cooling medium leakage rate is higher. In addition to copper corrosion resistance is stronger,

will happen in the process of using 'copper plating phenomenon', so must add additive in the system.

These refrigerant gas start capacitor suppliers are meant to serve as a guide for business owners on how to both identify potential opportunities for transformative innovation and how to adapt to the constantly changing technologies of today.

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