Patent ID: 7802774
Filing Date: 2010-09-28
Classification: F28C,F28F,Y02B,Y10S

Abstract:
1. A mechanical draft direct and indirect cooling tower comprising at least one direct section having a plurality of fill sheets wherein a fluid is distributed over the fill sheets, a fan to draw air into the cooling tower across the fill sheets thus cooling the fluid flowing over the fill sheets, the fluid distributed over the fill sheets falling from the fill sheets into a collection sump, the collection sump having a generally rectangular configuration with two parallel end walls and two parallel side walls, a sloped floor with at least two different slopes, and a drain, wherein the sloped floor has a compound slope at least one end wall and is in contact with the side walls such that a significant portion of the compound sloped floor includes a first part located above an operating sump water level and wherein the sloped floor in the first part is sloped to prevent the settling of dirt and debris, further comprising a second part of the compound slope floor sloped towards a drain but at a lesser angle from the horizontal than the first part of the compound slope floor.