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Release Date:[2008-4-7] A total of reading [1219] |
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Energy is the survival of mankind's limited resources, with the rapid development of the global economy and the rapid expansion of the population, the increasing scarcity of energy, getting more and more serious environmental pollution, energy conservation and environmental protection more and more countries in the world universal attention. With the people's lives are closely related to the construction of energy-saving windows and doors is an important part. According to the Ministry of Construction Statistics: My energy loss windows and doors of buildings about 50 per cent of energy consumption, China's average annual new housing by the number of the windows of the city 150 million square meters, 280 million square meters in rural areas. Of non-energy-saving window about 80% of the total, if the 40 per cent transformed into energy-saving windows, the coal can be saved 168 million tons (equivalent to 27.26 billion yuan); at the same time fewer emissions into the atmosphere 80 million tons of dust and a lot of toxic gas. Therefore, promote the use of energy-saving windows and doors, not only can be an effective energy conservation, but also to clean up the air, and protect the ecological environment is also of great significance. Bound to promote the development of new technologies, new products to improve the insulation properties of windows and doors to prevent heat loss of the building, so as to achieve effective energy conservation.
China's number of new residential largest in the world, the doors and windows in the world market is also a section, energy-saving windows and doors for enterprises and related industries, with broad space for development, the market has great potential.
Throughout the doors and windows in the structure of the occupied area of the glass 70-80% so that the heat dissipation of the important parts, a single-storey window of the heat transfer coefficient of about 6.0 W/m2 K, and the use of hollow glass windows its heat transfer coefficient is 2.6 W/m2 K, could save nearly 2 / 3 of energy. According to China Construction Metal Structure Association Secretary-General Zheng Jinfeng, stresses "the countries of Western Europe's most doors and windows and glass curtain walls are used in insulating glass and I believe that China's doors, windows, walls should be to gradually increase the intensity of energy-saving direction. Now Although application of plastic doors and windows constantly expanding, but a single glass mosaic still failed to meet the skill requirements. on the aluminum doors and windows should be expanded more publicity, do insulation insulating glass curtain walls and the doors and windows to meet energy requirements. "So , the popularization and application of insulating glass windows and doors as energy-saving construction of the key.
Germany, France, Italy, the United States and other developed countries use energy-saving windows and doors almost all. They are very rich, they are treasure energy, large-scale use of non-metallic materials (PVC) and the insulating glass. Hollow glass Since the 1950s, the international community has witnessed rapid development in economically developed countries has been widely used. Except for the construction industry, but also for the travel industry and refrigerators, refrigerated containers manufacturing, and other industrial sectors. According to "China's building materials": the United States in the use of hollow glass construction of the world's first new residential construction in more than 85% are using hollow glass doors and windows. Germany back in 1984 promulgated by the Building Insulation requires "all buildings must use insulating glass, and prohibit the use of single-layer glass." 1995 of the new energy-saving window of the required heat transfer coefficient of 1.5 W/m2 K, At present almost all the buildings are used insulating glass, the total area has reached 386 million square meters. Japan from 1975 will be used for insulating glass buildings, in order to reduce energy consumption, government regulations, "Hokkaido and other cold regions are used as building insulating glass windows and doors," As early as in 1986 the application of insulating glass reached 1258000 square meters. Therefore, the application of insulating glass abroad has been to a very popular stage, almost all the buildings are using energy saving and environmental protection hollow glass.
As China's national economy (especially the real estate industry), the rapid development, people's energy and improve their living conditions, the increasingly high demands, the problem of energy-saving buildings windows and doors by the national attention. China as early as in September 1996 under the then Ministry of Construction issued the "building energy saving technology policy," and become our country's basic national policy. Planning to universal energy-saving windows and doors in 2005 in the 25% -50%, and in 2010 reached over 80 percent. This policy will herald the introduction of energy-saving windows and doors in China's enter the development stage. China's Ministry of Construction has clearly energy-saving work has entered the second phase of 50 percent and eventually to 80 percent or more applications since 2007, the number of provinces and municipalities began mandatory requirements, "not all construction projects of the energy-saving standard , the project should not be approved, no design and construction, not inspection, and violations and take effective punitive measures. "March 23, 2007 China Central Television news hookup leadership of the Ministry of Construction that insulating glass in the construction and the role of energy conservation national policies, hollow glass This shows that the future will be of great development, market prospects are bright. |
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