DIFFUSER OF VENTILATION COOLING TOWER Russian patent published in 2014 - IPC F28C1/00 

FIELD: machine building.

SUBSTANCE: diffuser of a ventilation cooling tower comprises a body made in the form of a shell from glass material. Crossing stiffening ribs are made on the external surface of the body. A blade wheel is installed in the diffuser, the shaft of which is connected with the drive of rotation of the blade wheel. Crossing stiffening ribs are made as hollow with trapezoidal cross section and are arranged vertically and horizontally with formation of cells between them. The shell is made in the form of a rotation body with an outlet diffuser section, smoothly coupled at the side of inlet into it with the cylindrical section of the shell. The diffuser section of the shell is made as conical. The generatrix of the conical surface is smoothly coupled by means of the circumference arc with the generatrix of the cylindrical section of the shell. The shell body is made as composite from connected vertical sections. The lower part of each section, forming after assembly the cylindrical section of the shell is made with two horizontal rows of cells. The upper row is made with square cells, and the lower one - with rectangular cells. The upper part of each section, forming after assembly the diffuser section of the shell, is made with one horizontal row of cells of trapezoidal form that expand towards the bottom.

EFFECT: invention makes it possible to reduce labour inputs during assembly of a ventilation cooling tower diffuser and to increase quality of its manufacturing and repairability.

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