Chemical cleaning agent and preparation method thereof

Abstract

The invention discloses a chemical cleaning agent and a preparation method thereof, and belongs to the technical field of equipment cleaning. The chemical cleaning agent is prepared from the followingraw material components in parts by weight: 3-8 parts of sodium dodecyl benzene sulfonate, 0.5-2.5 parts of hydroxypropyl guanidine gum, 1-5 parts of sodium tripolyphosphate and 20-50 parts of water.The invention also provides a preparation method of the cleaning agent. The chemical cleaning agent is wide in raw material source, low in cost, simple in preparation method and low in cleaning agentconsumption, and the cleaning cost is reduced; experiments prove that the cleaning agent disclosed by the invention has an obvious cleaning effect on hard dirt, does not corrode a rotary air preheater body, and ensures the service life of equipment on the premise of realizing efficient cleaning. Through the synergistic effect of the hydroxypropyl guanidine gum and the sodium dodecyl benzene sulfonate, the chemical cleaning agent is used for wetting, permeating and splitting hard scales, so that the aim of removing intractable hard scales is fulfilled, and equipment cannot be corroded.

Description

technical field [0001] The invention relates to the technical field of equipment cleaning, in particular to a chemical cleaning agent and a preparation method thereof. Background technique [0002] The rotary air preheater is an important equipment in thermal power plants. The flue gas and air in the rotary air preheater flow alternately through the heating surface. When the flue gas flows, the heat is transferred from the flue gas to the heating surface, and the temperature of the heating surface rises, and heat is stored. When the air flows again, the heating surface releases the stored heat to the air. The problem of ash plugging is common in all power plants across the country. Due to the clogging of the rotary air preheater, the exhaust gas temperature of the boiler increases, the temperature of the hot air decreases, the resistance of the air and smoke system increases, and the pressure difference between the positive pressure side of the air supply and the negative p...

AI Technical Summary

Problems solved by technology

Due to the clogging of the rotary air preheater, the exhaust gas temperature of the boiler increases, the temperature of the hot air decreases, the resistance of the air and smoke system increases, and the pressure difference between the positive pressure side of the air supply and the negative pressure side of the suction air increases, thereby increasing Therefore, the rotary air preheater needs to be cleaned to increase the heat transfer efficiency. In the prior art, soot blowing devices or high-pressure water cleaning devices are generally used to alleviate the problem of ash plugging, but only It can remove floating ash, and the cleaning effect on long-term stubbornly adhered dirt is not obvious. In the prior art, there is also a method of adding chemical cleaning reagents to high-pressure water to improve the cleaning effect, but the current chemical cleaning agents can clean the dirt at the same time. There will be different degrees of corrosion on the equipment body, reducing the service life of the equipment