ARRANGEMENT FOR PREVENTION OF FROSTING OF MECHANICAL-DRAFT TOWERS Russian patent published in 2005 - IPC

FIELD: the invention may be used for protection from frosting the inner elements of mechanical-draft towers used for reverse water supply systems.

SUBSTANCE: a mechanical-draft tower has a sprinkler, a drop catcher, a ventilator and a diffuser in its upper part of the water distributing system in the form of piping feeding water to the middle tier of the tower provided with water spraying nozzles. Introduction of posts of the water distributing system into the tower is made through air inlet windows and the square of the air inlet windows is reduced in winter time by installing shields in the upper part of the air inlet windows. A drainage cap installed in the lower tier of the tower. It is provided in the its upper part with a hackle for which goes the lower edge of the lower part of the paneling on which there is a groove . Shields reducing the square of air inlet windows are installed in the groove and in the lower part of air inlet windows U-profile is installed. The low part of shields is installed in U-profile. At that a gap sufficient to provide capacity for the tower for work is left between U-profile and the upper edge of the tower's basin.

EFFECT: the invention allows to simplify construction and provide reliability of the tower's work in winter conditions.

2 cl, 2 dwg