Factory outlet community photovoltaic water intake project. Yesterday, the completion ceremony of the Photovoltaic Water Intake Project for Disaster Prevention and Mitigation Science and Technology Drought Prevention and Relief in 2012 was held in the factory mouth community. With the formal use of the seven photovoltaic water sampling demonstration projects just completed, the drinking water difficulties of more than 3,200 people and more than 900 large livestock in the Wuhua Xi'an Sub-district Office will be resolved, and the status of the people in dry areas will also be changed. Project will solve difficult drinking water for nearly 10,000 people The drought for three consecutive years has made it difficult for people and livestock to drink water in many parts of Yunnan. In order to protect the drinking water of urban and rural residents, Yunnan Provincial Department of Science and Technology took the photovoltaic water sampling demonstration project as the main scientific and technological drought prevention measures this year. The working group formed 32 water sources for seven cities including Kunming, Qujing, Zhaotong, Wenshan, Chuxiong, Lijiang and Yuxi. In the survey, 15 points with water sources but difficulties in taking water were selected and 15 sets of solar photovoltaic water intake systems were installed. At present, 15 engineering demonstration sites across the province have been able to solve the problem of drinking water in more than 7,500 people in 10 communities, more than 1,700 large livestock, and saving more than 4,200 acres of farmland. At the completion ceremony yesterday, Long Jiang, director of the Yunnan Provincial Department of Science and Technology, said that the successful implementation of the photovoltaic water abstraction demonstration project not only applied to drought relief work, but also had a significant scientific and technological demonstration role and important practical significance, and has great promotion value. Making full use of the solar energy resources in Yunnan is not only in line with the province's direction of developing clean energy, cultivating strategic emerging industries, but also an important way to rely on science and technology to protect people's livelihood. Largest engineering demonstration site Water pumping up to 150 cubic meters in sunny days It is understood that the Xihuan Subdistrict Office in Wuhua District is the key demonstration point for the demonstration project of photovoltaic water abstraction, which is organized and implemented by the Yunnan Rural Science and Technology Service Center. The Institute of Solar Energy, Yunnan Normal University is responsible for the construction, and the Science and Technology Department of Yunnan Province invests in science and technology funds. In ten thousand yuan, the government of Wuhua District has invested 200,000 yuan in supporting funds. A total of seven photovoltaic water sampling demonstration projects have been completed, which solved the difficulty of drinking water for more than 3,200 people and more than 900 large livestock in six communities. The seven PV water intake demonstration projects are respectively located in the Factory Group Community Small Village Group, the East Village Community Master Group, the Strouper Community Grasshopper Group, the Dancun Community Bigpo Group, the Xinmin Community Lucaotang Group, and the Sankou Community Jiepai Group. Steep slope community incense sticks group. Among them, the small village group photovoltaic water intake project is currently the largest engineering demonstration site in Yunnan. The project installs a pump power of 18.5 kilowatts, taking water from a deep well 400 meters deep, with a pump head of 130 meters, a flow rate of 30 cubic meters per hour, a photovoltaic system of 22.4 kilowatts, and a normal sunny day pumping capacity of 150 cubic meters. This point is equipped with AC power and can be pumped by the grid during rainy days. Pumping costs are low and it is expected to be promoted on a large scale At the demonstration site of the Dongcun Community Parent Group, Xiaolongtan, which has a water surface area of ​​about 20 square meters, is the only source of water for the villagers since the drought in 2009. According to the person in charge of Xiqiao Sub-district office, because of the topography, the water must be pumped out before it can be used. The lift of the pump is 40 meters. In the past three years, the mother grid group has burned seven diesel engines. The annual diesel fee is more than 40,000 yuan, and it needs special care. The huge cost is hard for the villagers to bear. With the use of photovoltaic water, labor costs and costs are greatly reduced, and the economic benefits are obvious. For the development prospects of photovoltaic water intake in Yunnan, Liu Zuming, deputy dean of the Yunnan Normal University's School of Energy and Environmental Sciences, who is in charge of the project, introduced that water resources in Yunnan ranks third in the country, but most of them are large rivers and rivers, and the use of electricity for pumping costs is high. At the same time, Yunnan is the third largest solar resource province in the country, and it has great advantages in developing photovoltaic water intake. “Solar photovoltaic water intake system lifts from 30 meters to 1,000 meters, flow from 0.1 cubic meters/hour to hundreds of cubic meters/hour, in the case of solar energy in rainy days, can also be connected to the grid, powered by the grid Pumping, the prospect of large-scale promotion and application is very broad." Liu Zuming said. (Reporter Meng Jun) ◠Glossary Photovoltaic water intake system → consists of a photovoltaic pump, a controller, and a group of photovoltaic modules. It uses the photoelectric effect of semiconductor materials to convert solar radiant energy into electrical energy to drive water pumping. The minimum is in wells with a diameter of 20 cm. It can also be used in various lakes, ponds, canals and other water sources. It has the advantages of on-site development, low-carbon environmental protection, low construction and maintenance costs, and so on.
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