PART 8: BOILER CORROSION
Автор: TETRAHEDRON CHEMISTRY CLASSES
Загружено: 2020-03-04
Просмотров: 1656
Описание:
In this video, I have explained the concept of boiler corrosion.Boiler corrosion is the active destruction of sound boiler metal by the pitting action of dissolved oxygen in the boiler water. This usually results in deep holes in the metal which are self protected by further corrosion products ie scabs or blisters over the hole which allow the chemical reaction to continue.
Thus generally large surfaces of the metal can be quite sound and yet an oxygen pitting site can develop deep penetration through boiler metal to cause ultimate failure. Untreated feedwater containing dissolved oxygen is highly corrosive to the steam boiler. While preheated feedwater and deaerators will greatly reduce the dissolved oxygen content of the raw water, it is essential to maintain adequate chemical reserves of an effective oxygen scavenger to avoid costly boiler metal corrosion and down time.
#boilercorrosion #dissolvedoxygen #mineralacids
Water Treatment Playlist link
• Part 1: Water Hardness
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