Removing biologic fouling and mechanical deposits from recycling water supply systems by hydroimpulsive cleaning

Summary

The method of hydroimpulsive cleaning of the recycle water supply systems that prevents biologic fouling and mechanical deposits in heat-exchangers and pipelines at minimum material inputs and power consumption is presented. The results of the industrial-scale experimental studies are given. The method of hydroimpulsive cleaning provides for the elimination of heat-exchanging equipment outage for cleaning; reduction of raw material and power losses for cooling water pumping; improvement of the process unit efficiency by regular deposit removal and maintaining the maximum heat transfer coefficient of the heat-exchange apparatus.

Key words

recirculating water supply , heat transfer coefficient , biologic fouling , mechanical deposits , hydroimpulsive cleaning , heat-exchange apparatus

Optimal control of recycling water systems

Summary

Method of recycling water system diagnostics that allows decomposing the process of deposit and incrustation agglomerate formation into subprocesses of separate component formation is suggested. The algorithm of selecting optimal directing effects for each component was developed using representative controllable heat exchangers. Tried and tested optimal control modes are transferred to system-wide equipment to minimize material resources and time consumption. With an account for the developments, the basic provisions of the complex network optimal operation theory, and the specific features of the recycling water systems the method of controlling these systems aiming at prevention of progressive deposit and incrustation formation is suggested.

Key words

recycling water system , efficiency criterion , heat-exchange surface , heat transfer coefficient , optimal directing effects