In the turbine operation system, EH oil is a key control medium, and its quality is directly related to the operation stability and safety of the turbine. In order to maintain the cleanliness and performance of EH oil, the turbine is usually equipped with an EH oil regeneration device, in which the ion exchange resin filter element JCAJ043 is the core component, which undertakes the important task of reducing the resistance of the oil. However, with the increase of operation time, the filter element may encounter failure or performance degradation. At this time, we need to take a series of measures for maintenance and optimization.

1. Analysis of the causes of filter element failure

Liquid flow problem: uneven liquid distribution or bias flow caused by resin dry column will make some resins unable to fully play their role, affecting the overall treatment effect.

Feed condition changes: Changes in parameters such as target ion concentration, interfering ion types and pH value in EH oil may affect the adsorption performance of the resin, resulting in a decrease in the filter element processing capacity.

Improper operation: Unstandardized operating procedures, such as too fast adsorption flow rate and insufficient regeneration agent concentration, may affect the regeneration effect and service life of the resin.

Resin contamination: Suspended matter, grease or iron ions in the oil may block the resin pores or bind to the resin skeleton, reducing the filtration efficiency of the filter element.

2. Measures for filter element maintenance and optimization

Optimize the flow of feed liquid:

Check the liquid discharge of the replenishment system to ensure uniform liquid distribution. For the problem of bias flow caused by the resin dry column, the air in the bed can be discharged by reverse liquid inlet or backwashing, so that the resin can settle naturally before forward liquid inlet treatment. In addition, it is also necessary to avoid the formation of bubbles or eddies above the resin bed to reduce the scouring and wear of the resin.

Adjust the feed conditions:

According to the changes in the impurity components in the EH oil, the feed conditions should be adjusted in time. For example, when the concentration of the target ion in the oil increases, the adsorption flow rate can be appropriately reduced to extend the contact time between the resin and the oil; when the number of interfering ions increases, it is possible to consider using a more selective resin or adjusting the regeneration agent formula to improve the treatment effect.

Remove resin contamination:

For the resin contamination problem, appropriate removal measures should be taken according to the nature of the contaminants. For example, for suspended matter pollution, the number and time of backwashing can be increased to remove impurities accumulated in the resin bed; for grease pollution, NaOH solution of appropriate concentration can be used for cleaning; for iron ion pollution, hydrochloric acid solution can be used for regeneration. In addition, the filtration pretreatment of the raw liquid should be strengthened to prevent pollutants from entering the resin bed.

The maintenance and optimization of the ion exchange resin filter element JCAJ043 in the turbine EH oil regeneration device is an important part to ensure the stable operation of the turbine. Through the implementation of the above maintenance and optimization measures, we can effectively extend the service life of the filter element, improve the processing efficiency and reduce the operating cost.

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