V4S COOLING TOWER INDUSTRY CO.,LTD
V4S COOLING TOWER INDUSTRY CO.,LTD is a manufacturer, designer and provider of products – services in the field of the cooling.
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Crossflow Cooling Towers Flow Diagram
In crossflow cooling tower systems the water vertically flows through the fill media while the air horizontally flows across the falling water. That’s why they call it “crossflow” because the air and water cross paths or flows. Because of the crossing of flows, the air doesn’t need to pass through the distribution system. This permits the use of hot water flow via gravity and distribution basins on the top of the tower right above the fill media. The basins are a standard of crossflow cooling towers and are applied on all units.
Closed type cooling towers operate in a manner similar to open cooling towers, except that the heat load to be rejected is transferred from the process fluid – the fluid being cooled – to the ambient air through a heat exchange copper coil. The coil serves to isolate the process fluid from the outside air, keeping it clean and contaminate free in a closed loop. This creates two separate fluid circuits: an external circuit, in which spray water circulates over the coil and mixes with the outside air, and an internal circuit, in which the process fluid circulates inside the coil. During operation, heat is transferred from the internal circuit, through the coil to the spray water, and then to the atmosphere as a portion of the water evaporates.
Counterflow Cooling Tower Diagram
Difference between crossflow and counterflow cooling towers: In counterflow cooling tower system processes, the air vertically flows upwards, counter to the water flow in the fill media. Due to the air flowing vertically, it’s not possible to use the basin’s gravity-flow like in crossflow towers. As a substitute, these towers use pressurized spray systems, usually pipe-type, to spray the water on top of the fill media. The pipes and cooling tower nozzles are usually spread farther apart so they will not restrict any air flow.