Building energy efficiency has broad market prospects

Building energy-saving has become the highlight of the entire society's energy-saving and emission-reduction, and it has a broad market prospect. The petrochemical industry needs to provide various products that are suitable for it and play its due role.

According to the staff of the exhibition, at present, solid clay bricks used in new buildings every year in China destroy 120000 acres of farmland. Because of the lack of insulation in buildings, construction waste is extremely serious. Building energy consumption accounts for 2530 of the national energy consumption. Building energy consumption is growing faster than China's energy production.

Actively improving the efficiency of energy use in buildings can greatly ease the country’s energy shortage and is an important measure to achieve the national energy conservation planning goals. The ideal energy-saving buildings should meet the following three requirements with minimum energy consumption: First, they can control or block solar radiation in different seasons and regions; Second, they can maintain indoor comfort in different seasons; Third, they can make indoor use possible. Necessary ventilation.

At present, the ways of building energy conservation mainly include: minimizing the consumption of non-renewable energy; reducing the energy loss of building walls, doors and windows (doors and windows decoration renderings), roofs, etc.; and reducing the energy consumption of the operation of building facilities. The extensive use of external wall insulation materials helps increase the energy efficiency of buildings and reduces total carbon emissions. Domestic building insulation materials account for less than 10% of the country's insulation materials, compared with 50 in the United States. The country maintains about 48 billion square meters of buildings, which is based on an annual increase of 2 billion square meters. For example, if 10 is to carry out energy-saving reforms, investment in 1 square meter will be 150 yuan, then the market will increase by 30 billion yuan annually.

The demand for building energy efficiency has attracted many manufacturers. In the energy-saving exhibition area of ​​the exhibition in Nanjing, a total of 34 companies exhibited hundreds of products. The reporter saw that they mainly produce various new materials for the wall. The practice of using traditional solid bricks to increase wall thickness to achieve insulation cannot meet the requirements of energy saving and environmental protection. Composite walls have increasingly become the mainstream of walls. Composite walls are generally made of bulk materials or reinforced concrete as load-bearing structures, composited with thermal insulation materials, or in the frame structure with thin-walled materials for thermal insulation and thermal insulation materials as walls.

At present, building insulation and heat insulation materials mainly include rock wool, slag wool, glass wool, polystyrene foam, and aerated concrete. However, these materials have large defects, especially organic materials such as polystyrene foam, which are flammable substances and have potential safety hazards. Many construction fires that have occurred in recent years have forced the relevant national departments to disable these flammable organic exterior walls. Insulation materials, replaced by inorganic insulation materials, such as foam cement, foam ceramics. Most of the building energy-saving materials that reporters see at the exhibition fall into this category. Due to the ban on flammable materials, the general petrochemical enterprises are obviously daunted by the production of building energy-saving products.

But building energy-saving petrochemical products are not without exhibitions. The only petrochemical company among the 34 exhibitors is BASF from Germany. The external thermal insulation panels and basic materials of the exterior wall thermal insulation panel they exhibited are all polystyrene. However, due to further processing and processing, they have fireproof performance. After testing, they have reached the relevant requirements in the classification standards for the combustion performance of building materials and products in China. . The insulation board is durable and stable against aging, and the bonded mortar and the slashed mortar are combined to make construction easier.

The reporter learned that as a wall insulation material in building energy conservation, it must meet five major requirements, namely, insulation, fire resistance, durability, ease of construction, and low cost. In the face of huge market demand, petrochemical companies should actively research and develop building energy-saving materials that meet the above requirements. With new products, they will realize the growth of the company's profits and make more positive contributions to energy-saving and emission reduction in the entire society.