Cooling system of high water collection tower

Abstract

The invention relates to a cooling system of a high-level water collection tower, including a tower core device. The tower core device takes the central axis of the high-level water collection tower as the center of a circle, and is divided into three ring-shaped distribution areas in turn: inner area, middle area and outer area. area, the tower core device includes a packing device and a water collection device; the packing device includes a plurality of packing sheets, and the maximum distance between adjacent packing sheets distributed in the inner area is a1, and is distributed between adjacent packing sheets in the middle area The maximum distance between the packing sheets distributed in the outer area is a2, and the maximum distance between adjacent packing sheets distributed in the outer area is a3, among which, a1﹤a2 or a1﹤a3; the water collecting device includes multiple water collecting inclined plates, distributed in the inner area The length of the sloping plates for collecting water is all L1, the lengths of the sloping plates for collecting water distributed in the central area are all L2, and the lengths of the sloping plates for collecting water distributed in the outer area are all L3, where L1﹤L2 or L1 <L3. The cooling system of the high-level water collection tower can improve the cooling efficiency of the high-level water collection tower and reduce the outlet water temperature of the cooling tower.

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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