Best Hengda glass has both economic and social ben

2022-08-17
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Hengda glass: get both economic and social benefits

the existing building reconstruction and passive housing training experience center project of Qingdao Hengda has been officially approved by the Ministry of housing and urban rural development in 2014. The design adopts the scheme of double vacuum glass curtain wall, which makes the design scheme of glass curtain wall a new choice for passive buildings. After the completion of the project, it will become an existing building reconstruction project that makes its position face the standard of the first passive house in China, and can become a center for passive house technology exhibition, experience and training

for many years, the enterprise has been deeply engaged in the high-tech field of the glass industry. So far, Henda glass has nearly 20 patents in the field of vacuum glass, and the research and development of a full set of production equipment has filled the international gap

with the implementation and flowering of Qingdao Hengda passive renovation project, a revolutionary chapter of low-energy passive buildings will begin in Qingdao. An ecological park group, a school and a hospital will bring passive buildings to Qingdao in the near future. The huge energy-saving and environmental protection benefits and demonstration driving role it shows will bring a heavy color to the blue leap that Qingdao will achieve

in addition to the existing building renovation projects of "passive housing" of enterprises, Hengda glass has also reached a cooperation intention with "passive housing" construction parks such as Sino German ecological park, becoming a material supplier for the construction of "passive housing" in Qingdao, and doing its best for the energy conservation and environmental protection work of Qingdao

it can be predicted that the business opportunities and social benefits of the large-scale investment and reconstruction of "passive housing" in Qingdao will promote the rise of the whole industrial chain of environmental protection building materials in Qingdao

low energy consumption vacuum glass

the concept of "passive house" originated in Germany in the 1990s. Its principle is not complicated. Through the energy-saving concept and construction technology, the thermal insulation, heat insulation and air tightness of the building are improved, and then the heat and cold are recycled through the fresh air system

the passive house has high comfort, the humidity is controllable to the occurrence of the above errors, the temperature is controllable, the natural wind is highly efficient, and the sound insulation effect is good, without leakage, condensation, mildew, watermark and so on. The indoor temperature is maintained at 20~26 ℃ all year round, the frequency of indoor temperature exceeding 25 ℃ is less than 10%, and the relative humidity is maintained at 40~60%. The passive room is equipped with a fresh air filtration system, and the indoor carbon dioxide concentration remains below 1000ppm all year round. The indoor air is healthy and fresh, and the comfort is much higher than that of traditional energy-saving buildings

according to the statistics of the Ministry of housing and urban rural development, the construction area of new houses in urban and rural construction in China is nearly 2billion square meters every year, of which more than 80% are high-energy buildings, and more than 95% of the existing 40billion square meters are high-energy buildings. At present, China's building energy consumption has exceeded the national total energy consumption by more than 30%. According to international experience and the development prediction of China's current building energy consumption level, by 2020, China's building energy consumption will account for 35% of the total energy consumption of the whole society, becoming the leading household of social energy consumption. 50% of building energy consumption is lost through doors and windows, and the proportion of glass in doors and windows accounts for 70% - 80%. Excluding industrial glass and traffic glass, in Hengshanqiao squadron of Wujin District Environmental Supervision Brigade, only building glass has an impact on the total energy consumption of the whole society of more than 10%. According to authoritative data, the energy lost through glass windows in China is about 2. 2.5 billion tons of standard coal, equivalent to the annual power generation of 21 Three Gorges power stations

at present, vacuum glass is widely used in passive buildings in the field of passive low-energy buildings, which is internationally recognized as the most advanced energy-saving building field. With its outstanding energy-saving effect and product advantages, it has become the preferred solution for advanced energy-saving green buildings in the world. This further improves the energy-saving indicators of existing energy-saving green buildings

the adoption of vacuum glass can not only help buildings with 65% energy-saving standards to be upgraded to passive buildings (equivalent to 92% of China's energy-saving standards), but also further upgrade passive buildings through vacuum glass. The energy consumption of vacuum glass is only one third of that of ordinary insulating glass, which makes the energy-saving index of "passive room" further. In addition, while ensuring the reduction of energy consumption, it can increase the area of glass in the whole building, improve the lighting conditions of "passive houses", meet the requirements of public buildings, and realize the realization of passive buildings with all glass curtain walls

energy conservation and emission reduction can be expected

at present, China implements the 65% energy-saving housing standard. After calculation, the energy consumption of passive housing is equivalent to reaching the 92% standard of building energy conservation in China. In Europe, the heating energy consumption of passive houses in winter can be reduced to less than 10% of the existing buildings of the same type, and the total annual energy consumption can be reduced to less than 30%. This can greatly alleviate the pressure of energy and greenhouse gas emission reduction in the process of urbanization in China

according to the calculation of the science and technology and industrialization development center of the Ministry of housing and urban rural development, building new residential buildings in northern heating areas into passive houses can save 3.4 billion tons of standard coal in 2050, and control the annual increment of heating energy consumption within 1million tons; If the existing northern heating residential buildings are transformed into passive houses, the annual heating energy consumption of this part can be reduced from the current 200 million tons to 15 million tons of standard coal; If the new buildings are built as passive houses at the same time, and the existing northern heating residential buildings are also transformed into passive houses every year, the total heating energy consumption of northern residential buildings can be controlled at 50million tons by 2050, which can help achieve the 2020 global energy conservation and emission reduction target promised by China at the Copenhagen conference, which is of great significance

if passive houses are promoted on a large scale, the urban heating system can withdraw from the historical stage and save the government's investment in the construction and operation of thermal power plants and heat pipes. In severe cold and cold areas, the heating energy consumption of passive houses in winter is 1/10 to 1/4 of that of ordinary energy-saving buildings, which can basically eliminate the dependence on traditional large-scale centralized heating facilities burning fossil fuels, and use decentralized or regional renewable energy to meet the needs of auxiliary heating

in the long run, the construction cost of passive buildings will be lower than that of ordinary buildings. By saving the heating, cooling, electricity and use and maintenance costs of home buyers, the increased house purchase costs can be fully recovered in a few years, generally showing positive and negative income

in order to better cooperate with the Ministry of housing and urban rural development in the promotion of passive houses and make vacuum glass help passive buildings to further upgrade, Qingdao Hengda, with the support of the Ministry of science and technology and the Ministry of housing and urban rural development, has undertaken two national science and technology support projects of the 12th Five Year Plan, namely, the development and application of complete sets of technology for low-energy glass exterior windows and the research on key technologies for large-scale production of vacuum glass. The national support plan has laid a solid foundation for the further technological upgrading of passive housing in China

China glass () Department

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