41results about How to "Reduce low temperature corrosion" patented technology

This utility model discloses a pressure deaeration system for a gas turbine waste heat boiler, including a boiler flue. The boiler flue section sequentially includes high, medium, and low-pressure heating surfaces of the waste heat boiler, a deaerator evaporator, and a feedwater heater. The feedwater heater is connected to a condensate inlet via a pipeline, and its hot water outlet is connected to a deaerator. The deaerator is connected to a deaerator water tank, and its water outlet is connected to the deaerator evaporator via a downcomer. The deaerator evaporator is connected to the deaerator water tank via a riser. The hot water outlet of the deaerator water tank is connected to a plate heat exchanger via a pipeline and then to the condensate inlet. The chemical makeup water inlet is connected to the plate heat exchanger via a pipeline and then to the deaerator. This utility model ensures the deaeration effect of the chemical makeup water in the deaerator; increases the inlet temperature of the feedwater heater, reducing low-temperature corrosion of the boiler; and avoids the chemical makeup water entering the boiler heating surfaces first, causing oxygen corrosion and extending the boiler's service life.