How to choose the suitable refrigerants

when buying the product, we all want to buy the right, the refrigerant is not exceptional also, model different role, so how to choose the suitable refrigerants? Small make up take his family to know about the below, and have a look together.

1, the working temperature and working pressure refrigerant wants moderate.

under the atmospheric pressure, the refrigerant evaporation temperature is low enough, in order to satisfy the temperature of the cooling requirements;

at room temperature, the refrigerant should have lower condensing pressure, due to the condensing pressure too high sealing performance of the refrigeration system agent structure strength requirement is high. General requirements of the refrigerant condensing pressure is: 12 x 105 ~ 15 x 105 pa;

at room temperature, the refrigerant should have relatively high evaporation pressure, because if the pressure inside the evaporator under atmospheric pressure, the outside air through a gap in the refrigeration system easily, make the pressure in the system, reduce the refrigerating capacity, increase power consumption. At the same time the moisture in the air can cause cooling system to produce ice wall and other consequences.

2, refrigerant will have a larger unit volume refrigerating capacity

the same specifications of the refrigeration equipment, elected by the refrigerant units volumetric refrigerating capacity is big, can obtain larger refrigerating capacity.

under the same conditions, when the capacity must be unit volume of refrigerant refrigerating capacity is big, can reduce the refrigerant volume of the system, and also can be corresponding to shrink the size of the compressor.

3, refrigerant critical temperature is higher, low freezing point to

critical temperature is high, easy to refrigerant said in ambient temperature condensate liquid. Low freezing point, low temperature, can be produced to expand the use of refrigerant temperature range, reducing the loss of throttling, refrigeration coefficient of progress.

4, refrigerant, viscosity and density as far as possible little

viscosity and density is small, can make the system in the refrigerant cycle, small flow resistance, reduce the cycle of energy consumption, appropriate to reduce the pipe size, and allow line have smaller bending radius ( And this is very important to reduce the evaporator pressure loss) , but also can reduce the chiller to the impact of the compressor valve group, prolong the service life of the compressor.

5, the coefficient of thermal conductivity of refrigerant and heat release coefficient is higher than

coefficient of thermal conductivity and heat release coefficient is high, can reduce the structure of the heat exchanger in refrigeration system appropriately, and progress in the thermal efficiency of heat exchanger.

6, and other aspects of refrigerant requirements

not burning, not explode, non-toxic, non-corrosive, affordable, easy to buy.

the above about the end of the refrigerant is introduced here, hope to be able to bring you some help, if you have a demand on refrigerant, welcome consultation discussion with us.

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