Method for preventing catkin fouling

Abstract

The invention provides a method for preventing catkin fouling, which is applied in an open circulating water system. The method comprises the following steps: sodium hypochlorite is added at one side of a circulating pool of the system to kill microorganisms on the side wall of the system so as to drive the microorganisms to drop to form flocculent sludge; hydroxyl ethylidene diphosphonic acid is added at the other side of the circulating pool of the system to disperse the flocculent sludge to form dispersive deflocculent sludge floating on the water surface; the deflocculent sludge and catkins floating on the water surface mutually adsorb to form catkin sludge pieces with small specific gravity; the catkin sludge pieces mutually adsorb, and the catkin sludge pieces adsorb impurities in the water thus forming floating catkin sludge blanket. The method for preventing catkin fouling provided by the invention has the advantages of no stopping, simple and flexible operation, non-increase of power consumption, etc. Sewage in the system can also be separated while the catkin fouling is prevented, so that the heat exchange efficiency of a heat exchanger of the circulating water system is improved.

Description

technical field [0001] The invention belongs to the technical field of circulating water treatment, in particular to a method for preventing catkin fouling. Background technique [0002] The open circulating water system adopts cooling fans on the top of the tower to draw air. Every spring, poplar catkins fly everywhere, and a large amount of poplar catkins and dust enter the circulating water system, and the heat exchanger of the circulating water system is blocked by pollution. In the early stage of pollution, the working efficiency of the heat exchanger is reduced, which wastes energy. As time goes by, the heat exchanger is often burned, and the temperature of the heat medium is too high to shut down, which poses a serious threat to the safe production of the thermal system. [0003] In the production process, some units adopt the installation of cooling tower air inlet filter screen and circulating water supply pipeline to install filter, but often the filter precision i...

AI Technical Summary

Problems solved by technology

In the early stage of pollution, the working efficiency of the heat exchanger is reduced, which wastes energy. As time goes by, the heat exchanger is often burned, and the temperature of the heat medium is too high to stop, which poses a serious threat to the safe production of the thermal system.

[0003] In the production process, some units have adopted the installation of cooling tower air intake filters and circulating water supply pipes to install filters, but often the filtration accuracy is high and the energy loss is large, and if the filtration accuracy is small, it will not work.

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