Freon will be eliminated, the environmental protection refrigerants in spring

our country is the world's big fluorine chemical products production and consumption power, production accounted for 66%, accounted for 42% of consumption. For the early realization of dreams, 'beautiful China' from 2013 to 2030, China will accelerate phased out freon, until it is prohibited to produce and use.

according to refrigeration express understanding, freon is regarded as the main culprit destroy the earth's ozone layer. Freon leak into the air, causing the destruction of the ozone layer, the greenhouse effect is caused by carbon dioxide 2000 times. To effectively protect the ozone layer, the Chinese government has signed the Montreal protocol and the Kyoto protocol, and the world climate conference in Copenhagen in 2009 promised from the beginning of the year with 17 years to complete the fluorine alternative work.

according to air conditioning refrigeration market survey data, production for more than 100 million sets of household air conditioning products in our country, but also a sizeable mobile air conditioning, commercial air conditioning, refrigerator, etc. , R22 ( Two fluorine monochloro methane) Commonly known as freon are very large, a conservative estimate all category of refrigerants annual demand reached hundreds of thousands of tons.

according to the Montreal protocol, developed countries and developing countries will be respectively in 2020 and 2030, a total ban on use of refrigerants. Control targets of HCFCs in China is: by 2013, consumption of HCFCs frozen state level in 2009 and 2010, average; By 2015, on the basis of a 10% cut. According to estimation, the implementation phase the overall targets, means HCFCs in China 17% of the total consumption will be subject to control.

however, nationally, the progress of the work is not very desirable, relevant departments of the support and the promotion is very limited, some units to accept new things slowly, some interests couldn't break the chain. In addition, the lagging behind of related technical and policy, substitute of freon is still not effectively recycling, discharges, or transfer to the rural circumstance nots allow to ignore.

at present, the urgent new environmental protection refrigerant R22 out schedule and large-scale application of blank in the domestic market is a big challenge in front of China's air conditioning industry, and the solution of this contradiction will bring new environmental protection refrigerant huge market space, also will encourage environmental protection level of China's air conditioning industry received a significant boost. Therefore, how to product manufacturing, installation, and new environmental protection refrigerant effective matching, corresponding technical reserves, domestic air conditioning industry for a rainy day.

the relevant personage proposal, on the basis of fully demonstrated, by the State Council or relevant departments for energy conservation and emissions reduction below promotion fluorine alternative work, taking into account ecological province and the related contents in the construction of ecological civilization, in a planned way to organize the implementation. In the organs of government buildings, and large energy consumption in fluorine alternative work, into the related assessment of energy conservation and emissions reduction, and from energy conservation and emissions reduction and fluorine instead of special funds to aid. To speed up the study of comprehensive utilization of freon is recycled, and formulate relevant regulations.

the global manufacturers are all developing low GWP value refrigerant applications. In Europe, for example, is now compulsory automobile air conditioning out everything refrigerants. As a result, most of the European car manufacturers have used HFO - Yf 1234 to replace everything, HFO - Yf 1234 is a very low GWP value and zero ODP value of new refrigerants. For stationary air conditioning, some European manufacturers are using low GWP value of alternative refrigerants, such as CO2 refrigerant system. America is not formulate regulations in this regard. Existing refrigerant

instead of HCFCs and HFCs refrigerant CO2 system and propane. CO2, namely R744, at the same time has a low GWP value and the ODP. The refrigerant system of low cost and abundant source. However, the operation of the CO2 system in across the critical state, which makes the efficiency than the traditional mixed refrigerants such as R - A and R134a has a low 10-404 15%. In addition, the CO2 pressure operation is extremely high, which requires state of the parts in the system to withstand high pressure. r404a system operating pressure is: high side: - 300 400 psi ( Pounds per square foot) The low voltage side: 30 psi. The operating pressure of the CO2 system are as follows: high side: 1800 psi, the low voltage side: 400 psi. Due to the high operating pressure, CO2 compressor system must also be able to tolerate high pressure. At the same time, with the usual HCFCs and HFCs systems, CO2 system cannot be applied to the far end yet low voltage system, can only be applied to the refrigeration system and so on.

propane is also commonly used alternative refrigerants. Like CO2, also have low refrigerant propane ODP and GWP value, and is rich in sources. Unlike CO2, propane system is low pressure system, but its easy to burn, for manufacturers, need to adopt to satisfy special safety standard fittings and running system. The flammability of propane system needs to run personnel pay more attention to the surrounding environment, and in strict accordance with the operating manual. Propane system can also be a major European alternative refrigerants. Many European manufacturers use R - in some small refrigerator 290 system instead of HFC refrigerants such as everything.

R - 290 refrigerant ODP value is zero, the GWP value is very low, and with the system accessories can match very well. Of course, because of its flammability, the application of propane is confined to a single device.

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