The utility model relates to the technical field of wet curtain cooling, and discloses a wet curtain cooling structure for
greenhouse, which comprises a frame, and also comprises: a cooling mechanism and a
protection mechanism. The cooling mechanism includes a water tank, a wet curtain main body, a
recovery tank, an adjustment device, a first
control switch and a second
control switch. In the utility model, when the
water supply of the adjustment device is too fast, a large amount of water accumulates inside the
recovery tank until the
water level rises to the position of the second
control switch. The second control switch controls the adjustment device to reduce the
water flow rate, avoiding water overflowing from the
recovery tank and causing waste. When the
water supply of the adjustment device is too slow, the water in the recovery tank decreases until the first control switch is exposed. The first control switch controls the adjustment device to increase the
water flow rate, so that the
water level of the
reflux in the recovery tank always remains between the first control switch and the second control switch, ensuring sufficient water flowing through the wet curtain main body while avoiding waste, which is beneficial to avoiding resource waste and ensuring the heat dissipation efficiency.