Corrosion problems and protective measures of chemical pumps
The corrosion problem of chemical pumps is one of the common and important challenges in the chemical industry, and its protection measures are directly related to the safe operation and production efficiency of the equipment. The following is a clear summary of the corrosion problems and protection measures of chemical pumps:
1. Corrosion problems
During operation, chemical pumps often need to deal with various corrosive media, such as acid, alkali, and salt solutions. These media have strong corrosive effects on the pump body and internal components, which can easily lead to problems such as pump body perforation and seal failure, thereby affecting the performance and life of the pump.
2. Protection measures
Selection of corrosion-resistant materials:
Select materials with excellent corrosion resistance such as stainless steel and fluoroplastics to manufacture pump bodies and key components to resist corrosion from the medium.
According to the specific properties of the medium, select a suitable material combination, such as composite plates, composite pipes and other structures to improve the overall corrosion resistance.
Surface treatment technology:
Use surface treatment technologies such as plating, spraying, and chemical plating to form a corrosion-resistant protective layer on the surface of the pump body to isolate the direct contact between the medium and the substrate.
Regularly inspect and maintain the protective layer to ensure its integrity and effectiveness.
Medium treatment:
Add corrosion inhibitors, such as ammonium salts, to corrosive media to reduce the corrosiveness of the media.
Control the temperature, concentration and other parameters of the medium to reduce its corrosive effect on the pump body.
Structural design optimization:
Optimize the structural design of the pump body to avoid the formation of dead corners where liquid accumulates and reduce the occurrence of crevice corrosion.
Use processes such as butt welding to reduce riveting and bolting to reduce equipment damage caused by crevice corrosion.
Electrochemical protection:
For chemical pumps in special environments, electrochemical protection methods such as cathodic protection or anodic protection can be used to improve the corrosion resistance of the pump body.
Regular inspection and maintenance:
Perform corrosion inspection on chemical pumps regularly to detect and deal with corrosion problems in a timely manner.
Strengthen the daily maintenance and care of equipment to extend the service life of the pump.
