The refrigerant condenser
* Source : * Author : admin * Time : 2014-09-05 * Browse : 29
Many types of refrigerants, Freon 12 and 22 will now make a brief introduction:
Freon 12 (CF2Cl2) Code R12 Freon 12 is a colorless, odorless, transparent, almost non-toxic refrigerant, but the air content of more than 80% of people will cause suffocation. Freon 12 will not burn nor explode when in contact with an open flame or temperature reaches 400 ℃, can decompose harmful hydrogen fluoride, hydrogen chloride and phosgene (CoCl2). R12 is the widely used refrigerant temperature, suitable for small and medium sized refrigeration systems, such as refrigerators, freezers and so on. R12 can dissolve a variety of organic matter, so you can not use ordinary rubber gasket (circle), commonly used synthetic chloroprene rubber or nitrile rubber sheet or seals.
Freon 22 (CHF2Cl) Code R22 R22 does not burn nor explode, and its toxicity is slightly larger than the R12, water solubility, although larger than R12, but still allow refrigeration systems happen "ice jam" phenomenon. R22 each other with the lubricating oil can be partially dissolved, with its solubility and the type of the lubricating oil temperature, and so the use of R22 refrigerant oil return systems must measure.
R22 corresponds to the evaporation temperature at standard atmospheric pressure of -40.8 ℃, at room temperature, the condensation pressure of less than 15.68 × 105 Pa, and the cooling capacity per unit volume more than 60% larger than R12. In the air-conditioning equipment, most of the choice of refrigerant R22