According to the construction news of Hebei Provincial Department of housing and urban rural development, in 2020, 74 passive ultra-low energy consumption building projects will be started in Hebei Province, with a construction area of 1.23 million square meters
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By the end of 2020, 141 passive ultra-low energy consumption building projects will be built in the province, with a construction area of 4.4 million square meters, ranking first in the country
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In the past year, Hebei Province has taken a series of measures, such as improving the system and policies, revising the technical standards, and increasing publicity, to vigorously promote the high-quality development of passive ultra-low energy consumption building construction
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Hebei provincial government has issued “several policies on supporting the development of passive ultra-low energy consumption building industry”, which clearly puts forward 29 supporting policies in eight aspects, such as increasing promotion efforts, ensuring land supply, and improving the industrial chain
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The Department of housing and urban rural development of Hebei Province printed and issued several measures on strengthening the quality management of passive ultra-low energy consumption building projects and guidelines for post evaluation of passive ultra-low energy consumption buildings in Hebei Province to promote the improvement of construction quality of ultra-low energy consumption buildings and standardize the contents, standards and procedures of post evaluation
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The Department of housing and urban rural development of Hebei Province revised the design standard for energy efficiency of passive ultra-low energy consumption residential buildings and the design standard for energy efficiency of passive ultra-low energy consumption public buildings, and compiled the technical guidelines for post evaluation of passive ultra-low energy consumption buildings and three volumes of relevant standard atlas
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The construction standard system of passive ultra-low energy consumption building engineering has been basically sound, covering the whole project Design, evaluation, construction and acceptance, energy-saving detection, post evaluation and other aspects can meet the needs of the whole process of engineering construction
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In addition, a series of thematic publicity activities such as co hosting live webcast, opening WeChat official account and opening website columns have effectively improved public awareness of passive ultra low energy consumption buildings
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In 2021, the relevant departments of Hebei Province will strictly implement the “several policies on supporting the development of passive ultra-low energy consumption building industry”, “Hebei passive ultra-low energy consumption building industry development plan (2020-2025)” and a series of technical standards, continue to strengthen the construction of passive ultra-low energy consumption buildings, and lay a solid foundation for the development of passive ultra-low energy consumption building industry
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Continue to carry out professional and technical training, on-site observation, technical forum and other activities to improve the professional and technical ability of employees
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Cultivate a number of leading enterprises with high technical level and strong production capacity to promote the overall level of the industry
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We will continue to strengthen supervision and dispatch, establish a system of monthly and quarterly reports, and focus on the supervision and handling of cities with slow progress
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Regularly organize work scheduling meeting, timely summarize the promotion experience, and promote the construction and development of passive ultra-low energy consumption buildings
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At present, passive house is rapidly promoted in various regions of China, and many people are concerned about the technology of building passive house
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Today, we write some key technologies of building passive house: first, vacuum glass energy-saving doors and windows
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Vacuum glass energy-saving doors and windows are energy-saving doors and windows composed of high-performance insulation profiles and vacuum glass, and their heat transfer performance is better than ordinary insulating glass The doors and windows are much better
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They are the advantages of passive ultra-low energy consumption buildings
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The vacuum glass is to seal the surrounding of two flat glass, pump the gap into a vacuum and seal the exhaust hole
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The gap between the two pieces of glass is 0.3mm
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Generally, at least one piece of the two pieces of vacuum glass is low radiation glass, which will pass through the conduction, convection and radiation of the vacuum glass Its working principle is the same as that of glass thermos
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Many enterprises use vacuum glass for refrigerator insulation and building energy saving, which is really great! 2、 Vacuum insulation board external insulation system another vacuum principle of the product is the vacuum insulation board insulation material, its thermal conductivity is as low as 0.008, several times better than the performance of traditional insulation materials, to achieve the same insulation performance, the thickness of the vacuum insulation board only needs one fifth of the ordinary insulation material, can save a lot of building area occupied by the wall thickness
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The application of vacuum insulation board in the external wall insulation of buildings at home and abroad the application of vacuum insulation board in the external wall insulation of buildings at home and abroad the application of vacuum insulation board in the external wall insulation of buildings at home and abroad
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Passive room also needs a set of equipment system to achieve the goal of warm in winter and cool in summer
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Now many people demonize the legend of passive house, saying that passive house doesn’t need “air conditioning” and “heating”
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After spreading false information, people take it for granted that passive house doesn’t need any equipment
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In fact, the passive room must be equipped with some heating and cooling equipment to protect people’s living needs, but the external form of this equipment has changed, which is different from the traditional air conditioning
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It can integrate fresh air into the air conditioning system, and use the end of fresh air to achieve heating, cooling and supply fresh air
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This integrated facility is much simpler than the traditional central air conditioning + independent fresh air mode, which is very practical in passive residential buildings
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This is the principle of the standard fresh air energy all-in-one system
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The above is the common technical system that can be used for residential buildings and passive houses
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Of course, there are many solutions on the market, not limited to one or two technologies
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Many people think that passive house is a kind of solidified product
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They think that passive house is a new type of building which is different from steel structure and frame structure
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They think that its application technology is standardized and single
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In fact, different types of buildings in the construction of passive housing, the goal is the only, that is, high comfort, high energy saving, but the path is diverse
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Welcome to discuss the cooperation of passive housing project!.
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