The use of energy is a major problem in all countries of the world, and building energy consumption is also a major factor that plagues all countries. How to say goodbye to the era of high energy consumption in buildings is also a concern of the public. The application of solar energy has also been put forward in the program. Among them, the integration of solar thermal building is a common way of understanding. How to integrate solar thermal energy, a renewable energy system, with architecture is also a topic of common concern in the industry. HVAC (online) He Yongnian, a researcher at the National New Energy Engineering Technology Research Center, said at the 9th Green Building Conference held recently that the solar energy and renewable energy in the construction and the latest development forum showed that: In the building energy consumption, hot water, heating The energy consumption of air conditioners accounts for a large proportion. Therefore, it is extremely important to actively promote the use of solar energy in buildings. What is the integration of solar energy building in the real sense? Solar Energy Water Quality Supervision and Inspection Center (Beijing) Chief Engineer Zheng Ruicheng made a comprehensive explanation on the above forum: The so-called solar energy building integration is a real realization of solar energy. The functions and energy-saving benefits of the heat utilization system cannot only consider the combination of solar collectors and other equipment and the building external protection structure; throughout the entire process of construction of solar heat utilization systems, from planning, design, construction to life extension and benefit assessment The entire construction industry chain, designing buildings, structures and equipment (but water supply and drainage, heating and ventilation, electrical) and other professional fields; the system's external security, aesthetics, internal functions, and efficiency can be taken into consideration by both colleagues in a true sense. The design of building integrated solar thermal utilization system In the implementation process of each product and every project, the design must be the forerunner. However, there are certain problems in the design of the solar thermal utilization system. Zheng Ruicheng talked about the following issues: First of all It is still the combination of domestic and architectural solar thermal systems that are still mostly Completed by solar energy companies, local architectural design departments only cooperate with each other, affecting work efficiency and system quality. Construction design institutes and construction equipment installation companies should be the main part of design, construction and installation; In addition, many national standards for solar thermal utilization in buildings , design manuals, and standard atlases have been published and implemented, but publicity and training are not enough. They haven't caused due impact in the professional designers of architecture, structure and equipment, and they have played a role; In addition, digital technology has developed rapidly. Today, the design of solar thermal systems is seldom applied to more intelligent computer design and calculation software. There is also a technical measure for system thermal measurement and benefit detection and evaluation of solar thermal utilization systems. In response to the above issues, He Yongnian gave a policy-oriented solution: In recent years, the Ministry of Housing and Construction and the General Administration of Quality Supervision, Inspection and Quarantine have issued four national construction standards for solar thermal utilization technology for civil buildings, covering solar thermal energy. Water, solar heating and solar air conditioning are used to standardize the design, installation and project acceptance of solar thermal systems to ensure project quality. Market direction and countermeasures for solar thermal utilization systems For solar thermal utilization systems, market integration is the only way for building integration. How can we withstand market-oriented tests? It is a common concern. Zheng Ruicheng gave a full range of answers from the aspects of products, technologies and goals. From the product point of view, the solar thermal energy integration system today needs to solve the following problems: further improve the performance of low-temperature solar collectors; develop free-selective thermal-absorbing coating materials with free intellectual property and can be used on metal surfaces. Production process; Industrialization of flat-plate type solar collectors using domestic selective coating heat-absorbing materials; Safety, pressure-bearing capacity and thermal performance of vacuum-tube solar collectors. Industrialization of medium-temperature (100-150 °C) solar collectors. The development of high-efficiency, low-cost solar air collectors and the assembly of solar collectors and buildings, as well as their industrialization, are also of paramount importance. Development of medium and high temperature heat storage materials and equipment; development of low-cost, temperature-controlled start-up, safe operation of gas-fired boilers, household gas-fired boilers; development of household absorption chillers suitable for solar air-conditioning systems; solar energy, air Source heat pump integrated application of integrated products and other aspects is an essential way to optimize the industry. In terms of technology, Zheng Ruicheng said: The performance of compact domestic solar water heaters, and the transition to a separate solar hot water system combined with buildings, and a separate solar water heating system for household use are prerequisites for marketization; The solar hot water system fully realizes energy saving, water saving optimization operation and management, intelligent controllers and equipments, and establishes remote monitoring digital centers, improves the system operation level of property companies, introduces various financing modes such as contract energy management, etc. The reliable way of the people. The market goal of solar thermal utilization system is very large, but it is also very practical. All types of solar hot water systems are installed and installed in newly-built buildings in cities with hot water demand and existing buildings satisfying installation conditions; The consumption reaches more than 40%; solar water heating systems are installed in townships and rural buildings where there is a demand for hot water; the conventional energy consumption for system replacement reaches more than 50%. In the current industry-oriented solar heating heating, Zheng Ruicheng said that heating needs to focus on the construction of large-scale solar centralized heating systems and heating stations, especially in Tibet, Xinjiang, Qinghai, Inner Mongolia, Gansu, Ningxia and other western regions The area is very suitable. In addition, building new energy demonstration cities and green energy demonstration counties, demonstrating provinces, demonstrative cities, and demonstrative counties for renewable energy building applications are the government's policy-oriented demonstration projects as an effective means; while heating projects are in progress, seasonal heat storage technologies need to be considered. Development; Comprehensive utilization of solar and geothermal energy; At the target level, 5% of urban buildings use solar heating heating systems; 20% of townships and rural buildings use solar heating heating systems; Solar heating heating systems are good substitutes for conventional heating systems. Achieving more than 30% is a goal we strive to achieve. Policy support and market orientation This article has repeatedly mentioned that the policy-oriented keyword, the development of each industry, can not afford the support of the policy. To this end, Zheng Ruicheng also said that now the local governments have issued mandatory installation of solar hot water systems. This is a very good signal for promoting the integration of solar energy buildings. In terms of household solar water heaters, home appliances to the countryside, energy-saving projects for the benefit of the people, and the purchase of selected products by the user can receive state subsidies and other policies are also a major magic weapon to promote the orderly development of the industry. At the same time, Zheng Ruicheng suggested that in the process of establishing the integrated solar energy utilization system for buildings afterwards, the approved demonstration projects for renewable energy building applications, cities, and counties, etc., will receive a certain percentage of investment subsidies from the state when the project starts; On the other hand, a solar energy heat utilization system is equipped with a heat metering device for long-term detection of energy-savings; it is based on the cost-effectiveness ratio (RMB/KWh) calculated from the actual energy-savings analysis and is calculated; and it needs to optimize the loan and financing environment and promote it. Contract energy management. He Yongnian said that in recent years, the Ministry of Housing and Construction and the General Administration of Quality Supervision, Inspection and Quarantine have issued a number of national construction standards for solar thermal utilization technology for civil buildings, covering solar hot water, solar heating and solar air conditioning, to regulate The design, installation and acceptance of solar thermal utilization systems ensure project quality. Practices at home and abroad have proven that solar energy can be used not only efficiently in hot water, heating and air conditioning, but also play an active role in building energy conservation, and can be specially designed to meet the requirements of different buildings, thus achieving solar energy building integration. Guangzhou Jointair Co., Ltd. , https://www.jointairaccessories.com