Описание

Deaerating column KDA-5 - the main element of the atmospheric deaerator installation. In the deaerating head is the process of deaeration. Column KDA-5 is a vertical vessel with elliptic bottoms and nozzles. Inside the speaker there are "perforated plates".

The principle of operation of deaerating column KDA-5

Pre-heated, to be prepared by deaeration of the water is supplied to the distribution perforated plate (upper) intake HVO, where the through holes of the plates she jets flows down the spillway in intermediate plate. The intermediate drain plate column KDA-5 is to increase the residence time of the water jet in the steam space in the jet compartment, which contributes to its greater heat. At this time, steam is fed to the column. By the heat treatment, water, and dissolved gases (oxygen and carbon dioxide) expands and separates these elements from each other. The hot gas rises through the column KDA-up 5 and is supplied to the cooler flash steam, where it is further cooled. The water is discharged into the lower part of the column with a water seal. It performs two functions: in normal mode, it filled with water and allows a couple to pass through it, in consequence of which ensures heating of the water in the bubble sheet; at elevated steam pressure pushes water and small falls over in column KDA-5 bypassing the bottom of the bubble sheet that allows to reduce the steam pressure and to normalize the operation of the deaerator. After passing through the column KDA-5, the water is discharged in the storage tank deaerator. In the tank, carbon dioxide also continues to stand out from the water, even when upholding the water in the tank, since all the atmospheric deaerator tanks production PC Boiler, there is provided a submerged bubbling device in which steam is supplied. The installation of the bubbling device in the tank is required when high levels of dissolved carbon dioxide in the analysis of the source water.

It is worth noting that the PC Boiler manufactures Weir plates in stainless steel, unlike many manufacturers. Pay special attention to this!