Key points of passive building energy saving technology

Key points of passive building energy saving technology

? What are the key points of passive energy-saving building technology? It is to minimize the energy loss of the room by using the external protection system with superior thermal insulation performance. Below I have compiled an article about passive building energy-saving technology, welcome to read and browse!

? First, the breakthrough of high thermal insulation wall,

The coupling solution method combines the advantages of inorganic materials and organic materials, which not only retains the high thermal insulation characteristics of organic materials, but also has the fire protection advantages of inorganic materials. Completely meets the requirements of passive energy-saving buildings. This technology is embodied in a piece of 30? 30? In the 1990s, the special-shaped modules were made of this inorganic and organic refractory with high thermal insulation. The inner and outer surfaces were decorated with calcium silicate or painted stone, and the middle was made of lattice reinforced concrete bearing structural columns. The module can be freely docked in multiple directions. This structure was formulated by the National Institute of Architecture, and its earthquake resistance can reach 9. Besides being used in passive energy-saving buildings, it can show its superior thermal insulation effect when used with any frame structure. In addition to the thermal insulation function, it can also play the role of fire prevention layer for steel structure buildings. It is popular in the construction of new countryside, and can be renovated at one time, which is particularly fast and has excellent price. Known as a universal module in Europe, it is a classic product combining residential industrialization with passive energy-saving products.

Second, solar heating,

Photothermal solar energy has been used for bathing in China for more than 40 years. People are always eager to use it to keep warm and try their best to find a way out of the contribution rate of the sun. However, the sun is still the same. In the middle of winter, solar energy has low water temperature and little water, which makes our efforts fail repeatedly and wears away our enthusiasm for it. Suzhou Xingze Company has been unable to increase the contribution rate of the sun, so it has to find another way. Using mobile phone cooling technology, cold water can be used to cool the room temperature in summer, completely replacing air conditioning, and overheated water can be used to form floor heating in winter. This kind of floor can heat a room with a heat source water temperature of more than 20 degrees. Even if it is used in the current coal-to-gas heating project, it can also highlight its outstanding energy-saving effect. Ordinary floor heating needs a heat source of 60 to 70 degrees. Coupled with the original tile-changing photoelectric photothermal integrated solar collector of Xingze Company, the problem of solar heating is completely solved, and power generation (if there is still power generation demand) is also taken into account. Because of overcoming the overheating of photovoltaic panels, its unit power generation increased by 48.8%. This is a major breakthrough. Solar energy is the cleanest and cheapest energy and the most effective alternative energy to solve the smog dilemma.

Three, aluminum plastic film * * * extrusion energy-saving three glass window:

Although wall insulation is very important in a building, the energy consumption of doors and windows actually accounts for 48% to 565,438+0%. In the process of cooperation with Germany, Zhonglian found that Germany is strict and meticulous about the material and technology of windows. In the process of discussing and improving with demanding German partner * * *, we have jointly developed the current aluminum-plastic extruded energy-saving and sound-proof three-layer glass window. It is a kind of door and window profile produced by using the current compound and compound extrusion technology. Its strength is three times that of plastic profiles, its weight is two-thirds, its expansion and contraction rate is extremely low, and it does not deform. More importantly, the thermal conductivity of aluminum alloy is 320 times that of this profile. No matter how broken the aluminum alloy is, the two materials cannot be compared. Moreover, the aluminum alloy broken by plastic sheets does not have the original strength of aluminum alloy. Compared with wooden windows, windows covered with * * * will never corrode. Therefore, this composite manufacturing technology was chosen. Even the small technology of three-layer glass space isolation layer, through scientific calculation, the heat insulation and sound insulation effect of double eighteen-layer interval is far higher than that of double nine-layer interval three-layer glass. Technically, we call the double-nine interval product pseudo triple glass. Its thermal insulation performance is far from enough, which is a big loophole in the passive energy-saving building system and cannot be used in passive energy-saving buildings at all. In addition, while strengthening the sunshade function of the window, we also developed the heating function of the window, so that the window can be heated in winter, which is far more cost-effective than our painstaking efforts on the U value of the window. Play a multiplier effect. And extraordinary price advantage. This depends on technological innovation.

4. Fresh air system is indispensable in passive energy-saving buildings.

At present, when China is shrouded in severe smog, Zhong Nanshan, a medical expert, said that smog can shorten people's life span by six years. Wan Gang, Minister of Science and Technology, said that smog control abroad has exceeded 10 years. Why did Gary Locke, the U.S. ambassador to China, resign and return to China halfway through his term of office, emigrate overseas with money, and go to Hainan when he has leisure? Can't we just sit back and watch the smog kill us? Passive energy-saving housing can just bring us good news. When the air tightness of this passive energy-saving room reaches the extreme, its heat preservation function is self-evident. The heavy smog outside has been unable to invade. At the same time, there is also a phenomenon of holding your breath indoors. Because of its airtight characteristics, whether you can enjoy the comfort of fresh air is also very important for a healthy life. Very simple, add a fresh air system (not the same as the air purifier) and it will be all OK. Oxygen-enriched ions are produced after filtration, so that the air quality entering the room reaches the European F7 standard, just like being in Vienna forest. If someone smokes a cigarette indoors, the smoke will never spread and will be discharged soon. This is really a good way to get rid of the harm of smog. This fresh air system also has the characteristics of low price and simple installation.

Come to think of it, people's life, day and night are mainly spent in the room. The function of passive energy-saving buildings fully meets the needs of healthy living, energy saving and emission reduction. In order to promote the popularization and take root of passive energy-saving technology in a wider range in China, in addition to being used in new buildings, a set of technical implementation plans for transforming existing buildings are also being vigorously implemented. This will make outstanding contributions to the transformation of urban shanty towns and the construction of new countryside.

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