Novel scale inhibitor for treating high-hardness water

Abstract

The invention provides a novel scale inhibitor for treating high-hardness water, which comprises the following components in percentage by weight: 0.1-10% of ethylene glycol tetraacetic acid, 1-50% of ethylene diamine, 1-15% of diethyltriamine pentaacetic acid and the balance of water. By using the technical scheme, the problem of high hardness of circulating water can be solved, thereby overcoming the equipment damage by manual and mechanical scale removal and enhancing the power generating efficiency.

Description

technical field [0001] The invention belongs to the technical field of water treatment, in particular to a water quality stabilizer for circulating water treatment. Background technique [0002] Most of the water quality in northern my country belongs to medium-high hardness water quality. This kind of water quality is characterized by high calcium hardness, high total alkalinity, low corrosion tendency of water body, and high scaling tendency, especially when it is used for natural gas power generation. It can be found that the cooling cycle of the generator set has a large scale deposit, which requires regular manual mechanical cleaning, which will cause great damage to the equipment, and the outage will also bring certain economic losses. [0003] At present, organic phosphoric acid such as ATMP, HEDP, PBTC, etc. are commonly used as the main components of scale inhibitors. On the one hand, it can inhibit corrosion and prevent calcium carbonate scale, and overcome the poll...

AI Technical Summary

Problems solved by technology

However, the commonly used ATMP, HEDP and PBTC have poor effects on calcium phosphate scale inhibition, and it is necessary to compound polymers with good calcium phosphate scale resistance.

Different types of polymers have different treatment effects. Generally, the cost of polymers with good calcium phosphate scale inhibition effect is relatively high.