Detachable ocean platform steam-injection boiler

The invention belongs to the technical field of petroleum machinery, and particularly relates to a detachable ocean platform steam-injection boiler. The detachable ocean platform steam-injection boiler is characterized by comprising a boiler body and auxiliary equipment, wherein the boiler body comprises a radiation section, a convection section and a heat exchanger, the radiation section comprises a combustion area, a flue gas turning area, multiple spiral tube bundles arranged in the combustion area, and horizontal S-shaped reciprocating tube bundles arranged in the flue gas turning area, each of the combustion area and the flue gas turning area comprises segmented barrel bodies, a flange connecting every two segmented barrel bodies and a heat preservation layer, the convection section comprises a plurality of segments connected through frame connecting flanges, each segment comprises a side window frame, an elbow box, a convection tube bundle, a fixed tube plate and a heat preservation layer, and the conve