Scale inhibitor for circulating water

Abstract

The invention relates to a circulating water scale inhibitor, which comprises the following components by weight portion: 2. 5 to 2.8 portions of PASP (polyaspartic acid), 1 to 1.2 portions of ATMP (amino trimethylene phosphonic acid), 2.4 to 2.6 portions of HPMA (hydrolyzed polymaleic anhydride), 1.2 to 1.4 portions of AA / AMPS (acrylic acid and 2-acrylamide-2-methyl propane sulfonic acid copolymer), 1.1 to 1.3 portions of PAA (polyacrylic acid), and 0.7 to 1.8 portions of water. The scale inhibitor prepared by the formulation is environment-friendly, has the characteristics of safety and reliability, easy preparation, convenient use and the like, and is suitable to be used as medicaments for preventing scale on circulating water systems in the fields of electric power, chemical engineering, medicine, petroleum, and the like.

Description

technical field [0001] The invention relates to a scale inhibitor for an industrial circulating cooling water system. Background technique [0002] Water is one of the most precious natural resources, and water conservation is imperative. my country is a country that lacks water resources. With the rapid development of industry, water consumption is increasing. In many areas, the lack of water resources restricts the development of industrial and agricultural production. In some areas, the shortage of water resources even causes harm to human beings. Survival threats and challenges. [0003] More than 50% of industrial water is used and consumed in industrial cooling water. Therefore, increasing the concentration ratio of circulating water is an important way to realize water saving in industrial production. However, with the increase of the concentration ratio, the fouling trend of water quality gradually increases. Due to the improper selection of antiscalants and the sh...

AI Technical Summary

Problems solved by technology

However, with the increase of the concentration ratio, the fouling trend of water quality gradually increases. Due to the improper selection of antiscalants and the shortage of water resources, many industrial circulating water systems have a large amount of fouling of heat exchangers in summer when water resources are scarce. This has a great impact on the heat transfer effect and the safe and stable operation of the system.

At the same time, with the strengthening of human environmental awareness and the continuous increase of national environmental protection policies, although some scale inhibitors with organic phosphine as the main component have good scale inhibition effects, the addition of such agents will increase the total phosphorus content of the water body. If the range increases, the sewage of the circulating water will cause eutrophication of the receiving water body and cause pollution to the surrounding water environment