What are the common cold media? _

Every time said to the refrigerant ( Refrigerant) First of all, most people think of is air conditioning. Indeed, in the context of daily life, almost every household air conditioning installation, application frequency is quite high. However, today we are going to talk about, not air conditioning, but with air can heat pump air conditioning with similar principle. Air conditioning is mainly used in refrigeration, air can heat pump is mainly used for heating. Heating principle of the heat pump is the inverse of air conditioning refrigeration principle, through the refrigerant absorbs heat from the air. Therefore, said refrigerant in the air can play a key role in heating. Common refrigerant and air can have what kind of? Today will meet together with everybody, into the cold media: 1, refrigerant R22 refrigerant R22 is single, scientific name called methylene fluoride a chlorine, the boiling point is about - 41℃。 The refrigerant colorless, odorless, is widely used in air conditioning system, especially in the fission air conditioning and air conditioning system, can say is everywhere. However, it has a big shortage, is that it is a member of the family of freon, into the air, the possible damage to the ozone layer, causing environmental problems. 2, everything refrigerant R134A has a component composition is different with other refrigerants, it does not contain chlorine ion, have no toxicity, also not flammable in air, will not damage to the ozone layer. Seems to be very good, but its boiling point is low, only. . . 26. 5 ℃, this means that, if it is used in the heat pump, once the environment temperature is reduced, so the amount of refrigerant in the gasification will be greatly reduced, resulting in a decline in heat pump heating efficiency. Therefore, this kind of refrigerant R22 than widely, commonly used in indoor type or high temperature heat pump. 3, the refrigerant r410a refrigerant R410A is scientists in order to in view of the increasingly deteriorating environment and developed a kind of environmental protection refrigerants. It goes with everything, colorless, volatile, flammable. R32 and R125 refrigerant is contained in composition, the boiling point about - 51 ℃ or so and do not contain chlorine ion, also won't destroy the ozone layer, water soluble and R22 matched, but the capacity is increased significantly. Now also can air industry common new environmental protection refrigerant. 4, R290 refrigerant R29 is another kind of new environmental protection refrigerant, colorless, slightly soluble in water, does not contain ozone. If mixed with air and has a certain probability bums, if there are any open flame, it is easy to cause accident. Now, in the industry use of high purity as refrigerant R290 as heat medium. Above is a small part of the refrigerant of information, from the perspective of the development of continuous emphasis on energy conservation and environmental protection in China, air can heat pump refrigerant development, also in the environmental protection no pollution. The future of the heat pump market, environmental protection refrigerant will certainly has its place. Contribute strength for blue sky battle together!

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