In daily work, many friends will ask about the service life of Polelite resin, that is, the service life, how long can it be used? Today we will answer questions in this regard.

 

After the resin is used for a period of time, the resin needs to be regenerated frequently for a long time. During each regeneration, the resins are scrubbed with each other. Under water pressure and mechanical wear between the resins, the cross-linking value (mechanical strength) of the resin gradually decreases, and the skeleton is deformed. During operation, the water is sometimes yellowish brown. The water cycle is obviously shortened, and the regeneration effect is not ideal. Then you need to replace with a new resin.

 

 

　The currently commonly used cationic softening resin in China is a Sino-British joint venture Ploylite resin. The service life of the water softening resin provided by the manufacturer is 5-8 years in industry (theoretical value). In actual operation, the main reasons why the resin is affected by raw water are:

 

 

A. The raw water pipeline is generally a carbon steel pipeline. The water reacts with the pipeline to generate iron ions. After entering the resin, with the extension of the running time, the functional exchange group of the resin decreases, which is characterized by high salt consumption and regeneration Poor water quality.

 

 

B. Repeated resin regeneration: Due to the frequent and long-term regeneration of the resin, each time the resin is regenerated, the resins are scrubbed with each other. The crosslinking value (mechanical strength) of the resin gradually decreases due to the water pressure and the mechanical abrasion between the resins. Deformation. During operation, the effluent is sometimes yellowish brown, the water production cycle is obviously shortened, and the regeneration effect is not ideal.