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Fresh air supply system for cooling tower

A fresh air system and cooling tower technology, applied in the direction of water shower coolers, lighting and heating equipment, heat exchanger types, etc., can solve the problems that the aerodynamic field of cooling towers cannot be improved obviously, and achieve improved heat exchange effects and aerodynamic The effect of field uniformity and temperature reduction

Active Publication Date: 2010-04-28
SHANDONG UNIV +1
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent Z102270484.1 discloses a "cooling tower bottom air intake rectification device", which is a device that uses longitudinal partitions and transverse partitions to guide the air, which can reduce the impact of external side wind on the cooling tower air intake, but The improvement of the aerodynamic field inside the cooling tower is not obvious

Method used

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  • Fresh air supply system for cooling tower
  • Fresh air supply system for cooling tower
  • Fresh air supply system for cooling tower

Examples

Experimental program
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Embodiment 1

[0013] Embodiment 1: Arrange the air guide pipe 2 at the air inlet at the bottom of the cooling tower, extending from the outer edge of the air inlet of the cooling tower 1 to the central area inside the tower, and set the number and air guide of the air guide pipe 2 according to the aerodynamic field inside the cooling tower 1 The position of pipe, the shape of air guide pipe 2 can be selected one of shapes such as circle, quadrilateral, triangle, semicircle for use. Half of the outer surface of each air duct is covered with a layer of soft material. When the cooling tower is working, the air intake of the cooling tower enters the cooling tower from the air inlet, most of the fresh air enters the outer area of ​​the tower through the rain area, and the other part of the fresh air passes through the air duct, crosses the rain area, and directly enters the central area of ​​the tower. Realize the heat transfer and mass transfer between the fresh air and the central area of ​​th...

Embodiment 2

[0014] Embodiment two: the same as embodiment (1), the difference is that the number of air guide pipes is 9, and the length of the air guide pipes is 20 meters.

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Abstract

The invention provides a fresh air supply system for a cooling tower and belongs to the field of thermal power generation or nuclear power generation, in particular to technology capable of realizing fresh air supply to the inside of a natural draft counter-flow wet cooling tower. The fresh air supply system of the cooling tower adopts an air duct structure, is arranged at the bottom periphery of the cooling tower and extends to central area of the tower opening from the outer edge of the air inlet of the cooling tower. Each air duct forms a certain inclination angle with the direction of a circumferential tangent and a certain inclination angle with a radial direction. Thus, the fresh air can be led into the cooling tower, the cooling efficiency of the cooling tower is improved, the internal air dramatic field in the cooling tower is improved, the optimal matching between the water flow distribution rules and the air distribution rules is realized and the temperature of circulating water is reduced.

Description

technical field [0001] The invention belongs to the fields of thermal power generation and atomic energy power generation, and in particular relates to a technology capable of realizing supplementary fresh air inside a natural ventilation counterflow wet cooling tower. Background technique [0002] The counterflow wet cooling tower currently in use has a hyperbolic shape with natural ventilation at the bottom. Circulating water enters the filling layer of the cooling tower and flows downward, and air flows upward from the bottom inlet to absorb the heat of circulating water, complete the process of heat transfer and mass transfer, and reduce the temperature of circulating water. With the increasing volume of cooling towers, the diameter of the air inlet has exceeded 100 meters. In this way, the aerodynamic field inside the cooling tower becomes extremely uneven, causing the heat transfer effect in the central area of ​​the cooling tower to weaken. The distribution law of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F25/10
Inventor 孙奉仲陈友良史月涛高明
Owner SHANDONG UNIV
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