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Shandong freon manufacturers is introduced as a refrigerant freon what properties

by:Arkool     2021-01-15

as a refrigerant gas, should have what kind of nature?

in order to use of refrigerant in the refrigeration cycle, after mechanical squeeze into high temperature and high pressure gas, and then cooling liquid, swell gasification, using the low temperature condition, the surrounding temperature drop, to squeeze liquefaction and use various types of tightening machine. Meanwhile, there is also a refrigerant and motor direct touch to touch type, the condition, use freon properties with the following points.

( 1) No toxicity and excitability

refrigerant is usually used in a closed system, no direct touch to touch, such as the human body. When doing engineering or in an accident, however, there may be inhaled or touch refrigerants, under this situation, also shall guarantee the safety of homework, in the ammonia refrigerant used, because of the irritating odor and toxicity, leaked to people comprehend formation damage, freon almost no toxicity, but when a lot of leakage, because the freon gases than major, simple stranded in lower local, because it is a colorless, odorless, not simple, found that, so must pay attention to the form of oxygen, and even suffocation.

( 2) No combustible and explosive

not flammability and explosive leakage is not easy to discover factors, bag yesterday used the freon is incombustible.

( 3) Chemical and thermal properties are safe, even if used for a long time also do not divide.

( 4) Don't make the lubricating oil degradation and good solubility.

( 5) Not easy to leak, after the leakage and simple maintenance.

( 6) Cheap, simple procurement.

( 7) Do not pollute the environment.

( 8) At room temperature and under low pressure, can be liquefied.

( 9) In the condition of low temperature and under atmospheric pressure, can transpiration.

in a volumetric tightening machine if the condensate liquid evaporation, transpiration, is under pressure from than the atmospheric pressure in negative pressure section may enter the air, the formation of the tightening machine power decline, such as the use of R 11 tightening of centrifugal machine, extraction equipment, the discharge air into the equipment.

( 10) Transpiration large latent heat

when liquid, the greater the heat from the surrounding grab, can use a few of the refrigerant in larger refrigerating capacity.

( 11) Full steam volume small

unit mass of full steam is small in size, both when full steam density, compressed displacement can be small, the machine to miniaturization. ( However, small centrifugal tightening machine requirements are bound volume of refrigerant)

( 12) Low viscosity of gas phase and liquid phase are

refrigerant circulate in the equipment, the higher the viscosity, activities, the greater the resistance, the energy power of the equipment is less good.

( 13) High critical temperature, low freezing point

usually, the gas pressure, will be a liquid, but above a certain temperature, no matter how pressurized, also won't become a liquid, the temperature is called the critical temperature, various gas has its particular value, in use, the other, below the freezing point, become a solid, as fluid machinery, cannot use, therefore, using temperature range, have to in the outside temperature.

( 14) Coefficient of thermal conductivity big

in refrigeration equipment, using the heat exchanger, so a good thermal conductivity, heat exchanger can do little, gas, liquid demand this nature.

( 15) No damage to electrical insulation material, good insulation.

in the enclosed squeeze machine, the operation of refrigerant and motor electrical components such as touch to touch, so this is the main character.

( 16) No corrosion metal parts of the machine

such as ammonia, chemical reaction will happen with copper and copper alloy and corrosion, so can't use the metal in the devices.

about freon, in the presence of moisture, in addition to containing a higher proportion of magnesium alloy corrosion were outside, almost no corrosive to other metals.

bag yesterday always use freon refrigerants, in addition to the above ( 7) Have an impact on the ozone layer, is an almost ideal with characteristics of above various refrigerants.

although chemistry very safe, but if and heated to 300 - 400 ℃ high temperature metal touch, will happen differentiation, and toxic gases such as phosgene and fluorinated carbon, so if freon refrigerant leakage to the atmosphere, must pay attention not to fire or heat of high temperature metal touch.


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