Boiler descaling agent

Abstract

A boiler descaling agent comprises the following raw materials in parts by weight: 80 to 100 parts of water, 10 to 20 parts of benzotriazole, 30 to 60 parts of acetic acid, 5 to 10 parts of lauryl sodium sulfate, 4 to 15 parts of thiourea, 3 to 8 parts of ammonium fluoride and 0.2 to 0.5 part of spice. According to the invention, installation and operation on a cleaning site are simplified and facilitated; the corrosion inhibition efficiency is high, the cleaning speed is fast, washing waste liquid treating is simple and convenient, and pre-filming after washing is facilitated; equipment safety is guaranteed, the descaling is thorough and the corrosion rate is low; corrosion and poisonousness to operating personnel are basically avoided, and the operation is simple, safe and reliable; meanwhile, the boiler descaling agent is free from toxic and harmful substances, can be discharged after simple neutralizing treatment, and is safe and environment-friendly; the boiler descaling agent adopts solid components, is safe, simple and convenient to use, has no harms to human bodies, is non-corrosive to equipment and has no influences on the environment.

Description

technical field [0001] The invention belongs to the technical field of daily chemicals, in particular to a boiler descaling agent. Background technique [0002] After long-term operation of the boiler, scale and rust problems inevitably appear. The main reason for the formation of scale in the boiler is that the feed water contains hardness components. After continuous evaporation and concentration at high temperature and high pressure, a series of physical and chemical events occur in the furnace. reaction, eventually forming hard, dense scale on the heating surface. Scale is the "top of all evils" of boilers and the main cause of boiler accidents. Its harmfulness is mainly manifested in: (1) Waste of a lot of fuel: Because the thermal conductivity of scale is only a few tenths of that of steel, when the heating surface After scaling, heat transfer will be hindered. In order to maintain a certain output of the boiler, the temperature of the fire side must be increased, so...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of complex use of existing descaling agents, slow cleaning speed, etc., safety to equipment, incomplete descaling, high corrosion rate, corrosiveness to operators, and easy to cause poisoning, etc.