60 years after the founding of new China, intellig

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60 years after the founding of new China, intelligent building has achieved fruitful results

on the occasion of the 60th anniversary of the founding of new China, construction technology is in the stage of great development. Under the guidance of the scientificoutlookondevelopment, the concept of sustainable development has become increasingly popular. The purpose of energy conservation is prominent in all fields of the construction industry. Building energy conservation has become an important theme in the development of construction science and technology, and has made continuous progress. Science and technology related to building energy conservation have achieved fruitful results. Attaching great importance to building energy conservation is a major feature of today's construction technology and construction industry

the main melody of construction technology in the 21st century

building energy conservation in China started in the 1980s. After the reform and opening up, the construction industry has developed in wall reform and new wall materials. At the same time, a number of high-end hotels, apartments and shopping malls with high energy consumption appeared. How to reduce building energy consumption in development and make it coordinate with the current situation of energy supply shortage at that time has become the focus of the relevant departments. To this end, building energy conservation began with reducing heating energy consumption. In 1986, the Ministry of Construction issued the "design standard for energy efficiency of civil buildings", requiring new residential buildings to save 30% energy based on the local general design energy consumption level in 1980. The "design standard for energy efficiency of civil buildings" is the first design standard for building energy efficiency in China. Its promulgation opened a new stage of building energy conservation in China. With the target of its indicators, the design and energy-saving technology of building energy conservation have developed, and a series of standards and regulations have been formulated

in the 1990s, the status of building energy conservation was further improved, and energy conservation work was effectively carried out. In 1990, the Ministry of construction proposed the strategic goal of "saving energy, water, materials and land". In 1994, building energy conservation was solemnly put forward as one of the projects in China's Agenda 21; Since 1994, the state has exempted energy-saving buildings in the north from fixed asset investment orientation adjustment tax, and a number of energy-saving residential areas have been built one after another. In 1995, the "design standard for energy efficiency of civil buildings" was revised and implemented the following year. The revised "design standard for energy efficiency of civil buildings - associate professors and doctoral tutors" increased the energy efficiency index of buildings in the second stage to 50%. In the same year, the Ministry of Construction issued the Ninth Five Year Plan for building energy conservation and the 2010 plan. This special plan, as well as the technical policy for building energy conservation and the technical policy for energy conservation in municipal utilities issued by the Ministry of construction in September 1996, defined the direction for the subsequent development of building energy conservation, and also showed the unprecedented improvement of the status of building energy conservation. The status of building energy conservation was finally determined by the energy conservation law of the people's Republic of China, which was implemented on January 1st, 1998. Building energy conservation has become a clearly stipulated content in this law

with the arrival of the 21st century, under the guidance of the scientific concept of development, the construction field has made it clear that it must take a new path of industrialization that is resource-saving and environment-friendly. The construction science and technology work has taken "four sections and one environmental protection" as the main direction of scientific and technological research, and has achieved remarkable results. At present, China has initially established a building energy-saving design standard system with the goal of saving 50% energy, and some regions implement a higher 65% energy-saving standard. In 2008, the Interim Measures for the administration of energy efficiency evaluation and labeling of civil buildings, the regulations on energy efficiency of civil buildings and other regulations were implemented, and the promulgation of the regulations on energy efficiency of civil buildings marked that China's standard system for energy efficiency of civil buildings has been basically formed, basically realizing the full coverage of the field of civil buildings

at the same time,

it is stipulated in the "2009 work arrangement for energy conservation and emission reduction" of the general office of the State Council that the proportion of implementing mandatory standards for energy conservation in the construction phase at the end of 2009 will be increased to more than 90%. In addition to new buildings, the energy-saving transformation of existing buildings has also been effectively carried out, and a number of achievements and experience have been achieved. Taking into account land resource conservation, indoor environment optimization, residents' health, energy conservation, water conservation and material conservation, green building has become the highlight of building energy conservation development in the new century

the rapid development of building energy conservation technology

in the process of building energy conservation gradually becoming the main theme of construction technology, the related energy conservation technology has also made great progress

under the organization of the Ministry of construction, the "2000 well-off urban and rural housing science and technology industry project" was implemented during the "Ninth Five Year Plan", the "major special projects for the development of science and technology in small towns", "Research on key technologies for the construction of residential areas and small towns", "Research on key technologies for green buildings" were organized and implemented during the "Tenth Five Year Plan", and the "research and demonstration of key technologies for building energy conservation" were implemented during the "Eleventh Five Year Plan" "Research on Key Technologies of modern building design and construction", "research and demonstration on Key Technologies of comprehensive transformation of existing buildings", "research and demonstration on renewable energy and building integration technology", and the organization and implementation of these scientific research projects have made breakthroughs in a series of important, key and common technologies of building energy conservation, and formed a large number of scientific and technological achievements

various technologies of building energy conservation have reached a high level

to reduce building energy consumption, we should first achieve it from the envelope, external walls, roofs, external doors and windows. The investigation and research of wall reform began in the 1970s. Since the 1980s, new wall materials and high insulation materials have been emerging. Concrete hollow blocks, polystyrene foam boards and other materials have gradually replaced traditional wall materials and played an important role in building energy conservation. At the same time, China has carried out extensive research on building exterior wall insulation technology. In recent years, various exterior wall insulation technology systems have become increasingly mature and applied in engineering, showing a good prospect

in addition, there are building doors and windows. The heat transfer coefficient of doors and windows determines the level of energy consumption. To reduce energy consumption, we must improve the thermal performance of doors and windows. 4) in case of holidays, increase the thermal insulation performance of doors and windows. In the past 20 years, in order to meet the needs of energy conservation, the products and process level of external window glass have developed rapidly, from the previous use of ordinary single-layer glass and double-layer glass to hollow, inflatable, Low-E glass, plastic steel profiles, tempered glass and other widely used, replacing the traditional steel windows and aluminum alloy doors and windows

the reduction of building energy consumption also depends on HVAC technology and equipment. In order to save energy in the heating system, China developed balanced heating technology and its products, boiler operation management technology and products in the 1980s. In terms of radiators, various new radiators have been developed since the 1990s. Compared with traditional cast iron radiators, these new products have the advantages of high metal thermal strength, good heat dissipation performance, high pressure bearing capacity, beautiful appearance, good processability, convenient installation and so on

after entering the new century, with the development of energy-saving transformation of existing buildings, heating reform has become an important part of building energy conservation. In order to meet the needs of reform, room temperature adjustable heating metering and charging technology and products have been further developed. The single pipe downstream system of the heating system has changed into a double pipe system, and the application of radiator thermostatic valve and heat meter has been very popular

technology is the key to ensure the realization of building energy conservation. The development of building energy conservation technology in China over the years has made people full of confidence in achieving the goal of building energy conservation of 160 million tons of standard coal during the "Eleventh Five Year Plan"

green building has achieved fruitful results

green building is a building that organically combines the ecological environment with buildings, saves resources and protects the environment to the greatest extent in the life cycle of buildings, and provides people with efficient and comfortable space. In the past 10 years, green energy-saving buildings have become a highlight of building energy conservation, reflecting the goal of higher building energy conservation in the new century

after entering the 21st century, the green building evaluation system has been gradually established to ensure the healthy development of green buildings. In 2001, the housing industrialization promotion center of the Ministry of construction compiled the key points and technical guidelines for the construction of green ecological residential quarters. In 2004, the Ministry of construction carried out a research on the subject of "green Olympic building evaluation system" for the Beijing Olympic Games, forming China's first set of green building project standards. In August of the same year, the Ministry of Construction promulgated and implemented the measures for the administration of the National Green Building Innovation Award. The next year, the first national green building innovation award was announced, and 40 projects won the award. China has taken a solid step in promoting intelligent and green buildings. In 2005, the technical guidelines for green buildings, which took five years to compile, was promulgated and implemented. Since then, there has been a clear basis for the evaluation of green buildings. During the Tenth Five Year Plan period, the key research plan "Research on green building planning and design guidelines and evaluation system" was completed. In 2006, the Ministry of Construction organized the preparation of "green building evaluation standards". In August 2007, the technical rules for green building evaluation and the measures for the management of green building evaluation marks were issued. In June 2008, the Ministry of housing and urban rural development prepared the supplementary instructions to the technical rules for green building evaluation (planning and design part) and the regulations on the use of green building evaluation marks in order to further standardize and refine the work of green building evaluation marks according to the actual situation of evaluation marks, Further improve the application and evaluation procedures of green building design evaluation signs

a series of work has established a green building evaluation system suitable for China's national conditions, which has effectively promoted the development of green building technology. After years of research and research, green building has formed six technical systems (plastic products for fishery and aquatic products, etc.) evaluation standards: land saving and outdoor environment, energy saving and energy utilization, water saving and water resource utilization, material saving and material resource utilization, indoor environmental quality and operation management. Through the actual measurement of the specific performance of building energy saving, water saving, land saving, material saving and indoor environment, the data are given to realize the quantitative detection standard, and the green building is the one that meets the standard

in August 2008, the Department of building energy conservation and science and technology of the Ministry of housing and urban rural development issued a certificate to the first batch of green building design evaluation and identification projects. Six projects, including the Shanghai WorldExpo center project, won the first batch of green building design evaluation and identification recognized by the industry competent departments, marking the official launch of green building evaluation led by government departments, ending the history of relying on foreign standards for green building evaluation in China

reviewing the history of building energy conservation, we can see that this cause of benefiting the country and the people has closely followed the pace of the times and made remarkable achievements. And all this, without the attention of the party and the government, is unimaginable. Therefore, people have every reason to be confident in the prospect of building energy conservation

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