Industrial water-saving agent, preparation method and applications thereof

Abstract

The invention discloses an industrial water-saving agent, which is prepared from the following raw material components in parts by mass: 100 parts of polyol, 3.0 to 15.0 parts of polyvinylpyrrolidone,2.0 to 6.0 parts of an antioxidant additive, 0.01 to 0.03 part of a bactericidal preservative and 0.01 to 0.03 part of a bactericidal mildew preventive. The preparation method comprises the followingsteps: adding polyol accounting for 20-40% of the total amount into a reaction container, and heating; adding the components of functional additive into the reaction container, and uniformly stirringand mixing; and finally adding the residual polyol into the reaction container, and uniformly stirring and mixing to obtain the industrial water-saving agent. The production process is simple, safe and environment-friendly; the industrial water-saving agent is simple and convenient to use, suitable for water saving of circulating flowing water, capable of remarkably reducing volatilization loss of industrial water, remarkable in water-saving effect, small in use amount and low in cost; and during the use, system equipment does not need to be added or replaced, and normal operation of originalequipment is not affected.

Description

technical field [0001] The invention relates to the technical field of industrial water saving, and more specifically, relates to an industrial water saving agent and its preparation method and application. Background technique [0002] In industries such as iron and steel smelting, power generation, petroleum refining and chemical industry, a large number of large-scale water cooling towers are built, and cooling towers are also widely used in air conditioning cooling, refrigeration and other industries. The function of the cooling tower is to exchange heat between the cooling water carrying waste heat and the air inside the tower body, so that the waste heat is transferred to the air and scattered into the atmosphere. These cooling towers use direct heat transfer between air and water on the one hand, and use Evaporation of part of the water lowers the temperature of the cooling water for recycling, so the use of a water cooling tower will inevitably consume a certain amou...

AI Technical Summary

Problems solved by technology

However, the actual water consumption of cooling towers is often greater than the need to maintain heat dissipation. When there are many water towers and the volume is large, the accumulation of these additional water consumption may become an important water resource expenditure

At present, industrial water saving methods are mainly used to optimize industrial equipment, such as optimizing heat exchange process and heat exchanger combination, developing new high-efficiency heat exchangers, using heat exchangers with high heat exchange efficiency, or adding water recovery equipment. The processing method requires high investment in equipment, high energy consumption in operation, and poor convenience

[0003] Patent CN108996626A discloses an industrial water-saving agent, the water-saving agent contains white oil and functional additives, and the functional additives contain part or all of the following components: polymer polyisobutylene hydrophobic agent, hindered phenolic antioxidant, nylon Parkinoctyl octyl bactericidal preservative, N-octyl-4-isothiazolin-3-one bactericidal and antifungal agent, T1001 anti-emulsifier and benzotriazole ultraviolet radiation absorber, the water-saving agent is to use itself The specific gravity is small and insoluble in water, and it floats on the water surface to block water vapor and reduce water evaporation loss; the water-saving agent has a better effect on relatively calm water surfaces, but it is used in circulating cooling towers due to water flow and splashing. Water droplets continuously fall on the water surface in the pool, which easily damages the barrier layer on the water surface, which not only accelerates the volatilization of the hydrophobic agent, but also affects the water-saving effect

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