The invention relates to a high-rise building
fire smoke prevention
system, in particular to a circulation
water curtain smoke prevention
system used in a high-rise building fire. The circulation
water curtain smoke prevention
system comprises an impounding reservoir, a sinking pump, a circulating water tank, a pressure meter, a filter device, a flow control valve, a
water curtain water tank, a flow stabilization device, a flow distribution device, a flow equalizing device, a flow guide device, a structural steel support, a
smoke mist
detector, a temperature
detector, a continuous water curtain, a
fire protection controller, a
grating, a lower-layer floor, an upper-layer floor, a door pocket, a
pollution removal device, a water replenishing device, a water replenishing valve and a blowdown apparatus. The circulating water tank is arranged on the left side of the impounding reservoir, the sinking pump is installed in the circulating water tank, a
water pipe connected with the sinking pump enters the water curtain water tank through the pressure meter, the filter device and the flow control valve, and the flow guide device is arranged at the position of an outlet of the water curtain water tank; the
water pipe is connected with the flow distribution device, and the flow distribution device is connected with the flow equalizing device; and the
fire protection controller controls the flow control valve, the sinking pump, the water replenishing valve of the water replenishing device and a blowdown valve of the blowdown device.