In the hot summer, air-conditioning has become the most intimate "little partner" of the citizens, but many office workers who stay in air-conditioned rooms report that there will be dizziness and chest tightness from time to time. You can go to the outdoors for a while and there is no problem. What is going on here? "This is very likely related to the fact that the air conditioner is not cleaned up in time." Guo, who is engaged in air-conditioning maintenance and cleaning, said that indoor air turbidity can cause people's physical discomfort.
Master Guo said that the air conditioner regulates the temperature of the room through the air supply from the air outlet, and the circulation of the air needs to be blown out from the air outlet after passing through the filter through the wind turbine. "If you do not clean the inside of the air conditioner in time, the filter, heat exchanger and built-in wind wheel inside will be covered with dust. This will directly affect the health of the indoor air, reduce the thermal efficiency of air conditioning and refrigeration, and increase the air conditioning power consumption."
According to some data, Legionella, aphids, and E. coli hidden in air conditioners can cause dizziness and dizziness, and even unconsciously cause serious respiratory diseases and skin diseases, which threaten human health. In this regard, Master Guo gave a suggestion: “The air conditioner should be cleaned every 1 to 2 months. This will not only effectively remove all kinds of dirt on the air conditioner evaporator, but also remove the pollutants in the air conditioner and the odor in the air. Help to keep indoor air clean and ensure the health of users. Huaxi Community News trainee reporter Li Sijia link
Cleaning the air conditioner can save electricity costs!
Not cleaning the air conditioner in time is definitely a waste! Look at a rather amazing conversion on the Internet:
An air conditioner with an input power of 2 kW. After two years of use, the dirt thickness reaches 0.2 mm. After cleaning, it can save 28% of the electricity bill. If it is used for 8 hours a day, the electricity fee is 0.6 yuan/degree, and the annual use is 5 months. The annual electricity bill is 2x8x30x5x0.6x0.28=403.2 yuan. It can be seen that the user only spends a small amount of cleaning fee, and can save about 400 yuan of electricity every year!
The production process of copper in China is dominated by copper concentrates and pyrotechnic smelting of blister copper. The status quo is that the processing capacity is greater than the smelting capacity, smelting capacity has greatly exceeded the support capacity of copper concentrate, copper concentrate resources and scrap copper imports are required. Statistics show that in the 21st century, the output of domestic copper concentrate has not been significantly increased, maintaining an annual output of 600,000 tons (copper content, the same below), by the end of 2007 will form nearly 3.7 million tons of smelting capacity, far exceeding By then China's copper concentrate resources and the protection of the capacity of the international market may provide the amount of copper concentrate. The production capacity of copper mines in China can only meet 40% of the smelting capacity.
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