Cooling system of high water collecting tower

Abstract

The invention relates to a cooling system of a high water collecting tower. The cooling system comprises a tower core device. The tower core device is sequentially outwards divided into three annular distribution areas, namely, the inner area, the middle area and the outer area, with the center axis of the high water collecting tower as a circle center. The tower core device comprises a filler device and a water collecting device. The filler device comprises a plurality of filler pieces. The maximum distance between the adjacent filler pieces distributed in the inner area is a1, the maximum distance between the adjacent filler pieces distributed in the middle area is a2, the maximum distance between the adjacent filler pieces distributed in the outer area is a3, and a1<a2, or a1<a3. The water collecting device comprises a plurality of water collecting inclined plates. The length of the water collecting inclined plates distributed in the inner area is L1, the length of the water collecting inclined plates distributed in the middle area is L2, the length of the water collecting inclined plates distributed in the outer area is L3, L1<L2, or L1<L3. According to the cooling system of the high water collecting tower, the cooling efficiency of the high water collecting tower can be improved, and the output water temperature of a cooling tower can be lowered.

Description

technical field [0001] The invention relates to the technical field of high-level water collection towers, in particular to a cooling system for high-level water collection towers. Background technique [0002] The high-level water collection tower is one of the important thermal equipment in large-scale power plants, and its operating performance has a great influence on the safety and economy of the power plant. The tower core material of the traditional high-level water collection tower basically adopts the uniform arrangement of water distribution pipes, equal height and density of water-spraying fillers, equal angles of water-receiving sloping plates, and equal length of water-receiving sloping plates. The guiding function of the flow channel between the water plates, the main heat and mass transfer area of ​​the upper part of the water collection device of the high-level water collection tower, especially above the filler, the air velocity is basically the highest at t...

AI Technical Summary

Problems solved by technology

The tower core material of the traditional high-level water collection tower basically adopts the uniform arrangement of water distribution pipes, equal height and density of water-spraying fillers, equal angles of water-receiving sloping plates, and equal length of water-receiving sloping plates. The guiding function of the flow channel between the water plates, the main heat and mass transfer area of ​​the upper part of the water collection device of the high-level water collection tower, especially above the filler, the air velocity is basically the highest at the center of the tower, while the air velocity in the area near the tower wall is relatively small; and the high-level The air flow resistance under the water collection device of the water collection tower is small, and the upper edge of the air inlet on the windward side of the high-level water collection tower produces a large longitudinal vortex, which leads to problems such as improper matching between the water distribution distribution and the aerodynamic field during operation, and the heat absorption of the air entering the tower The moisture absorption capacity is not fully utilized, which affects the further cooling of the inner circulating water; at the same time, there is a problem of insufficient air in the periphery, which affects the cooling of the peripheral circulating water, which eventually leads to uneven cooling and low cooling efficiency of the high-level water collection tower

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