Solar water pump (also known as photovoltaic water pump) is the most attractive water supply method in today’s sun-rich areas, especially in remote areas without electricity and electricity. The system uses fully available and inexhaustible solar energy to fully automatically It is an ideal green energy system that integrates economics, reliability and environmental protection benefits without any need for care and maintenance.
(1) Reliable: Photovoltaic power sources rarely use moving parts and work reliably. (2) Safe, no noise, no other pollution. Does not produce any solid, liquid and gas harmful substances, absolutely environmentally friendly. (3) Simple installation and maintenance, low operating cost, suitable for unattended and other advantages. It is particularly concerned for its high reliability. (4) Compatibility is good. Photovoltaic power generation can be used in conjunction with other energy sources, and the photovoltaic system can be easily increased in capacity as needed. (5) The degree of standardization is high, and the components can be connected in series and parallel to meet the needs of different power consumption, and the versatility is strong. (6) Solar energy is available everywhere and has a wide range of applications.
However, solar systems also have their shortcomings, such as: energy dispersion, large intermittent, and strong regional. Higher upfront costs.
Wide application fields: hot water circulation system, wall-mounted solar water heater, engineering separated water heater, special pump for pressure pipes, special for pressure water tank, floor heating, solar hot water system, special water pump for air energy water heater, general pump.
Future areas: (1) Develop high-efficiency water pumps and motors to increase the high-efficiency zone range of motors and water pumps under a wide range of speeds and flow changes, and to reduce the threshold power of the system. Develop low-cost, high-reliability intelligent controllers to improve performance matching between components and cope with changing climate conditions, thereby improving system dynamic quality and global efficiency. At the same time, improve the development and promotion of small and medium-sized wind-light-heat and other energy complementary utilization technologies;
(2) A general method for long-term performance prediction of solar water pump systems under multiple factors such as climate, light, water level, and water demand, and a system design method based on dynamic changes. Databases in different regions are established to gradually replace the method of using static average estimation. ;
(3) With the reduction of the panel price and the development of small and medium-sized solar systems, in the future, based on the optimization of the panel power, the evaluation of the system operation reliability should be increased to improve the long-term system reliability and the stability of water supply.