Sludge stripping aid of circulating cooling water system

Abstract

The invention discloses a sludge stripping aid of a circulating cooling water system. The aid is prepared from the following raw materials in percentage by weight: 8 to 12 percent of sodium dodecyl benzene sulfonate, 4 to 6 percent of triethanolamine, 4 to 6 percent of polydimethylsiloxane, 12 to 18 percent of sodium polyacrylate and the balance of pure water, wherein the sludge stripping aid is used together with a strong oxidant to remove the sludge from the cooling circulating water system, so that the using amount of strong oxidant can be reduced by 40 to 60 percent compared with that of the strong oxidant which is used singly, the sludge can be slowly stripped in the form of small blocks and has high dispersibility in water and a little of foam, the sludge cleaning time is prolonged,the cleaning efficiency reaches over 99 percent, the aid has low corrosion to pipes of the cooling circulating water system, the service life of the cooling circulating water system is prolonged, phenomena such as blockage and the like are avoided, and safe operation of the cooling circulating water system is guaranteed; and thus, the aid has the advantages of reducing the amount of the used strong oxidant, reducing the corrosion of the strong oxidant to the metal pipe, prolonging the effective time of the sludge stripping and improving the cleaning rate.

Description

technical field [0001] The invention relates to a sludge stripping agent for a circulating water system, in particular to a sludge stripping aid for a circulating cooling water system. Background technique [0002] In the circulating cooling water system, the water temperature is appropriate, and it is easy to breed a large number of bacteria, microorganisms and algae. For example, in sunny places such as cooling towers, it is easy to breed various algae such as moss and moss; in places where the dissolved oxygen in the pipeline is insufficient , easy to breed anaerobic bacteria such as sulfate-reducing bacteria and siderophilic bacteria; these organisms are mainly colloidal suspended matter in water to form biological sludge, covering the condenser and pipes of the circulating cooling water system, etc. On the inner surface, biological sludge hinders the normal passage of cooling water and reduces the cooling effect of the condenser. The differential potential formed by bi...

AI Technical Summary

Problems solved by technology

At present, 13% sodium hypochlorite solution or 35% hydrogen peroxide is used alone, the desilting time is short, the cleaning rate is low, the amount of strong oxidant is large, and the high concentration of strong oxidant is also corrosive to the metal pipes of the circulating cooling water system, and the peeling off The silt block is also large, and the large silt may block the filter screen and heat exchanger, and it will cause major production safety accidents such as parking during the non-stop cleaning process