Summer cooling system for photovoltaic greenhouse

The utility model relates to a summer cooling system for a photovoltaic greenhouse. The system comprises the photovoltaic greenhouse, wherein photovoltaic panels and PC (polycarbonate) sun boards are arranged on the outer top of the greenhouse at intervals, and the photovoltaic panels are connected with a photovoltaic power generation system; a cooling system is arranged in the greenhouse and comprises wet curtains arranged on two inner side surfaces in the length direction of the greenhouse, the upper ends of the wet curtains are connected with a water pump through water inlet pipes, the water pump is connected with a water storage pool, the lower ends of the wet curtains are connected with the water storage pool through drainage pipes, and each wet curtain comprises a plurality of water absorption sheets; a filter is arranged on each water inlet pipe; a plurality of exhaust fans are arranged in the middle in the length direction of the top inside the greenhouse. According to the summer cooling system for the photovoltaic greenhouse, the wet curtains are arranged on the two inner side surfaces in the length direction of the photovoltaic greenhouse and connected with a water channel, the exhaust fans are arranged in the middle in the length direction of the top inside the greenhouse, moisture of the wet curtains on two sides is evaporated through the exhaust fans, so that heat is taken away, and the cooling purpose is achieved; on the other hand, air circulation can be formed in the greenhouse, the temperature difference in the greenhouse is reduced, air is blown from the top, and accordingly, growth of plants outside the greenhouse cannot be influenced.