DEAERATOR (VERSIONS)

摘要

FIELD: heating.SUBSTANCE: device includes a tank with an output branch pipe and a source of steam, the deaerating column with a cover and branch pipes located on it for water supply and vented steam bleeding containing the upper and lower deaeration stages. Each stage includes the pressure head and distributive plates installed with formation of a jet chamber in space between them and nozzles with the unordered elements. Deaeration stages are separated by the hydraulic lock formed by the board of the pressure head plate of the top stage and the ledge attached to the cover of the deaerating column. Water supply and vented steam bleeding branch pipes are located inside the hydraulic lock ledge in the ledge of which the holes are made. The lower edges of holes are located above the top edge of the hydraulic lock board by the value exceeding the heat carrier overfilling height sum over the hydraulic lock board and hydraulic resistance of the hydraulic lock channel. Total section of holes is determined from the condition of equality of vapour pressure in the bleeding branch pipe and in the space inside the hydraulic lock ledge.EFFECT: invention improves reliability of deaerator operation.3 cl, 5 dwg