INDUSTRIAL MONOTUBE STEAM GENERATOR Russian patent published in 2014 - IPC F22B27/00 

FIELD: machine building.

SUBSTANCE: steam generator consists of a low pressure module for preheating of feed water and its degasification which is formed by two cylindrical shells made from steel plates inserted coaxially with an annular gap and having end face bottoms forming a common closed cavity with the annular space between the shells. On the back side the annular space between the shells is covered by a steel wall with a flange for the purpose of installing a high pressure module in the low pressure module, the high pressure module consists of two close-coiled pipes with last two-three turns along the water and steam flow being set with a gap in relation to each other, connected sequentially at the water path, inserted one into another coaxially with an annular gap between them, the inner close-coiled pipe is a fire box where burning of gas or liquid fuel is localised, and the end face part of the high pressure module is an intermediate waterproof pressurised vessel.

EFFECT: higher operation reliability.

4 dwg