Calculation of Overhead Water Injection of Fractionator by Thermal Equilibrium and Trial and Error Method
Water injection at the top of the fractionation tower is an important process anti-corrosion measure to control the corrosion of the low-temperature part of the tower top.The water injection amount should ensure that there is sufficient liquid water at the injection point,and a typical water injection amount should ensure that the gas phase water at the injection point reaches the required saturation water amount,plus 25%.At present,due to the lack of a more general calculation method for water injection volume,some devices are more extensive in water injection management,resulting in arbitrary adjustment of water injection volume and inability to achieve accurate and effective control.Based on the principle of Thermal equilibrium,a new algorithm is proposed in this paper,which can use the general process calculation method to calculate the water injection volume,so as to realize the refined management of water injection volume.The calculation process does not rely on specialized software for process simulation,and the calculation results are more accurate and reliable.
water injectionthere injectprocess anti-corrosionfractionating tower
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