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3、Application advantages of photovoltaic power generation system in water treatment industry

3、Application advantages of photovoltaic power generation system in water treatment industry

2019-08-02

As an inexhaustible and renewable green energy source, solar energy has broad application fields and good development prospects with its unique advantages. As a kind of development and utilization of solar energy, solar photovoltaic power generation has the characteristics of pollution-free, renewable, flexible and storable. With the strong support of China's distributed photovoltaic development in recent years, it has opened a new stage of marketization of photovoltaic applications. Photovoltaic power generation systems have been put into practical use in the fields of road lighting and residential buildings. The water treatment industry is also suitable for the application of photovoltaic power generation systems due to its unique industry characteristics.

Photovoltaic power generation systems have the following advantages in water treatment industry applications:


(1) No tall buildings are covered around

Most of the water treatment plants are located in areas where industrial enterprises are relatively concentrated and located in remote areas. The surrounding buildings are mostly low-rise buildings such as industrial plants, and there is less shielding for photovoltaic power generation systems in water treatment plants. At the same time, due to the construction conditions of the water treatment plant itself, the structure and the building unit itself are low in height and sparse in layout, and are not easy to cause occlusion, so they have better illumination conditions.

 

(2) Large installed roof area

Due to the needs of the process flow, the water treatment plant has a large area of construction and structures, such as the raw anti-pool, the second settling tank, the blower room, etc., and there is a large installation space for the photovoltaic system above the building. In addition, the photovoltaic power generation system of the water treatment plant mostly belongs to the roof-type distributed photovoltaic system, does not involve new land, does not change the land use, does not affect the cultural relic protection requirements, does not increase the building area and does not change the building structure.

 

(3) Improve the processing effect

The rational arrangement and design of the photovoltaic power generation system of the water treatment plant can reduce the evaporation of the pool water, increase the water treatment capacity, reduce the impact of sewage evaporation on the environment, and at the same time reduce the wind speed above the pool, improve the local small environment, and improve The temperature of the pool water enhances the growth activity of the microorganisms, improves the sewage treatment effect, and finally achieves the purpose of improving the water treatment capacity and the comprehensive economic benefits of the project.

 

(4) The water treatment plant uses large amount of electricity and is stable

Water treatment plant loads include high-power loads such as blowers and submersible pumps, as well as low-power loads such as gates, grilles, and submersible flowers, which often have large computational power. Moreover, due to the relatively balanced water volume, the operation of each process equipment is relatively stable, and the load characteristics are stable, which is convenient for the design of photovoltaic power generation systems.

 

(5) Photovoltaic energy can be absorbed locally

Since the power consumption of the water treatment plant is large and the change is small, the rational design of the photovoltaic system can fully utilize the photovoltaic energy, avoid waste of power of the photovoltaic system, and reduce the light rejection rate.

 

(6) Good financing conditions

Water treatment plants usually have long operating cycles, guaranteed operations, stable benefits, high self-sufficiency ratio, and high return on investment, thus avoiding the problem of financing difficulties.

 

(7) Low maintenance cost

After the completion of the photovoltaic system, its operating costs, in addition to equipment damage caused by force majeure, are mainly maintenance costs such as cleaning water. The cleanliness of the effluent or water in the sewage treatment plant can meet the cleaning needs of the PV modules. At the same time, the water source can be directly collected into the sewage treatment process on the spot, thus saving water and reducing maintenance costs.


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