Water replenishment method and water replenishment system of supercritical unit steady pressure steam blowpipe

Abstract

The invention discloses a water replenishment method and a water replenishment system of a supercritical unit steady pressure steam blowpipe. The water replenishment method of the supercritical unit steady pressure steam blowpipe includes the steps of calculating the water consumption G during the steady pressure steam blowpipe, and according to the water consumption G, designing a supercritical unit steady pressure steam blowpipe water replenishment system. The water replenishment system designed by using the supercritical unit steady pressure steam blowpipe water replenishment method includes a desalting water box, a first connecting pipe, a desalting pump, a coagulation filling water box, a second connecting pipe, a coagulation filling pump, a gas coagulation device, a water replenishment pipe and a water replenishment pump. The water replenishment method and the water replenishment system of the supercritical unit steady pressure steam blowpipe have the advantages that the problemthat chemical water replenishment and boiler water are not matched is solved; the water using demand of boiler steady pressure steam blowpipe is met; and efficiency and safety of a thermal power generating unit capital construction process are improved.

Description

technical field [0001] The invention relates to the field of pressure-stabilized steam blowing pipes of thermal power generating units, in particular to a method and a water replenishing system for supercritical unit pressure-stabilizing steam blowing pipes. Background technique [0002] According to the provisions of DLT1269-2013 of "Guidelines for Steam Blowing of Thermal Power Construction Project Units" and DLT5437-2009 of "Regulations for Start-up Trial Operation and Acceptance of Thermal Power Construction Projects", the boiler water system, boiler water system, and The steam system is steam purged to blow off iron oxide scale, iron filings, welding slag, sand particles and other sundries inside the pipeline, to ensure the safety of the boiler heating surface, steam turbine blades and valves, and to speed up the steam quality process. However, in the process of boiler steam blowing of thermal power units, it often happens that the chemical water replenishment capacity ...

AI Technical Summary

Problems solved by technology

However, in the process of boiler steam blowing of thermal power units, it often happens that the chemical water replenishment capacity cannot meet the needs of this special stage, resulting in the prolongation of the high-risk and abnormal operating state of boiler steam blowing, which increases the risk of infrastructure work , and greatly wasted the manpower and material resources of the participating units, and caused obstacles to the complete trial operation and commercial operation of thermal power units

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