In view of the gap between domestic plate collector and foreign technology and quality, the following measures should be taken to improve the performance and quality of flat panel collector:
1) Research and development of selective coating for flat-panel solar collectors, the coating should have high absorption rate, low infrared emissivity, excellent heat and moisture resistance weathering performance and suitable processing costs; 2) The low iron high transmittance cover glass is widely used.
At present, a number of glass manufacturers have begun to produce low-iron glass suitable for solar collectors, domestic and foreign glass quality gap is becoming smaller;
3) Attach importance to the optimal design of the collector, improve the manufacturing process, ensure the tightness of the structure, reduce the heat dissipation loss of the collector;
4) Selection of tempered glass as a collector cover, improve the quality of collector components, the use of optimized structural design, to ensure that the collector can withstand hail, rain, air, pressure, thermal shock and other performance tests, improve the life of the collector, reduce the cost of system maintenance; 5) in order to adapt to cold areas, solar heating and air conditioning, as well as industrial heating and other special requirements, should develop an efficient flat plate collector.
As soon as possible to make double-layer cover plate and transparent honeycomb and other technology industrialization, and improve its cost-effective, so that high-efficiency flat-panel collector has a strong market competitiveness; 6) track foreign plate collector advanced technology and technology, develop a new type of flat panel collector Solar System, improve the market share of flat panel collector.