China Building Standard Design & Research Institute Co., Ltd. / Li Jun First, the solar thermal collector system and building design 1 overall technical performance requirements (1) Comprehensive consideration should be given to architectural aesthetics, technical and economical rationality, ease of operation and maintenance, and service life to incorporate them into architectural design. Unified planning, synchronized design. (2) The service life of the components and supports connected to the building body should be the same as that of the building. The service life of vulnerable equipment such as solar collectors and circulating water pumps should not be less than 15 years. (3) The installation of all equipment and components should meet the safety requirements for construction; the layout should be concealed and easy to maintain. 2 design file content and depth requirements (1) Content requirements 1 design calculation book. 2 solar hot water system design instructions; solar hot water system schematic diagram (including auxiliary heat source). 3 Plane layout of solar collectors, solar hot water systems, and solar collectors. 4 installation of solar collectors large sample; solar collector basic, embedded large sample diagram. 5 Solar power hot water system associated equipment (pumps, tanks, piping and insulation practices, auxiliary heat sources, and control equipment, etc.) 6 Solar hot water system electrical floor plan; solar hot water system control circuit diagram; solar hot water system lightning protection ground plan. 7 Solar hot water system equipment selection, size and quantity. (2) Depth requirement 1 Meet the “Depth Regulations for the Preparation of Construction Engineering Design Documents†formulated by the Ministry of Housing and Urban-Rural Development. 2 Meet the requirements of relevant industry standards and regulations. 3 meet the design contract requirements. 3 combination of installation location The installation location design should meet the following conditions as far as possible: (1) Ensure the aesthetic appearance of the building (2) Ensure high efficiency of solar energy collection (3) Convenient maintenance Installation examples are shown in Figure 1, Figure 2, and Figure 3. The technical evaluation of the installation position of solar collectors is shown in Table 1. 4 Combination of collector arrangements (1) The arrangement of collectors on flat roofs is to be premised on the premise of avoiding obstruction and not damaging the aesthetic appearance of the building. (2) The arrangement of collectors on the slope roof, building exterior wall and balcony fence shall be designed to meet or enhance the aesthetic appearance of the building facade. It is recommended to use symmetry, regularity, etc. to align the collector and the overall surface of the building. (3) Pay attention to the arrangement of the heat collector group as close to the system as possible to store heat or heat; pay attention to the concealed arrangement of associated piping; pay attention to reserved installation and inspection space. The more beautiful arrangement is shown in Figure 4~Figure 7. 5 combination of collector design (1) Harmony or strong contrast can be used to reconfigure the solar collector frame and cover color (plate type collector) so that the arranged collector can meet or further enhance the aesthetic appearance of the building. The design of the collector frame and the building is shown in Figure 8. (2) The collector frame can be made into various colors to meet the aesthetic appearance of the building. Collector cover, such as the use of transparent glass, the overall black color; if the use of frosted glass, the whole surface of the frosted glass color. To meet the aesthetics of the building, the design can specify specific design requirements for the color of the collector's frame and cover. Note: If the cover material is selected from frosted glass, the design value of the collector area should be calculated based on the solar radiation transmittance of the selected glass. 6 combination of system forms (1) Centralized heat collection, centralized water storage, and household metering system 1 In the condition that the number of floors is less than 9 floors, the associated water storage tanks and system circulation equipment should be arranged in the basement. In the case of roofing, it should be placed on the roof without affecting the appearance of the building, and should not affect the use of features, try to make its shape and color to meet the overall design requirements of the building's appearance. (2) The length of the pipeline between the collector and the centralized storage tank should be as short as possible by rationally designing the location of the tube well. By rationally designing the location of the hot water point, the length of the pipeline between the heating pipe and the water point should be as short as possible. 3 Heaters such as gas should be used as auxiliary heat source. 4 The control system should have remote monitoring function. (2) Centralized heat collection, household water storage, household metering system 1 The use of units as independent systems should be used as much as possible to reduce heat losses in the pipeline network. 2 It is advisable to set up a dedicated space close to the heat collecting system and for placing the system circulation and other equipment. 3 household water storage tanks should be set as close as possible to the heating pipe network and near the hot water point. (3) Distributed heat collection and household water storage system 1 Use heat collector and water points to minimize the layout of the building. 2 Storage tanks should be placed indoors or on closed balconies or in confined spaces near water points. Second, solar energy design standards, technical manuals and atlas When designing solar energy and building combined projects, the following specifications should be observed: "Code for the Design of Building Water Supply and Drainage" GB 50015; “Code for acceptance of construction water supply, drainage and heating engineering†GB 50242; "Civil Building Solar Water Heating System Application Technical Specification" GB 50364; "Technical Specifications for Design, Installation and Acceptance of Solar Hot Water Systems" GB/T 18713; "Civil Building Solar Hot Water System Engineering Technical Manual" "Design, Installation and Acceptance of Solar Water Heating Systems for Residential Buildings" DB33/1034; "Plate type solar collector technical conditions" GB/T 6424; "Vacuum tube solar collector" GB/T 17581-2007; "Solar collector thermal performance test method" GB 4271; "Automatic Instrument Engineering Construction Quality Acceptance Specification" GB 50131; "All-weather solar hot water system design and construction technical specifications" QB/BJJY2000; "General Rules for Thermal Insulation of Equipment and Pipelines" GB/T 4272; "Civil Building Electrical Design Code" JGJ16; "Lightning Protection Design Code for Buildings" GB 50057; "Building electrical engineering construction quality acceptance specification" GB 50303; "House Design Code" GB 50096; 06K503 "Solar Collector System Design and Installation" and other national building design atlas ("Atlas of Solar Collector System Design and Installation" is shown in Figure 9).
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