New energy-saving measures for the vaporization and flash evaporation black water pipeline
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The high-pressure black water discharged from the gasification unit (black water from the quench chamber and from the scrubber tower) is sent to the pipeline for flash evaporation. If hydraulic turbine equipment is installed on this black water pipeline to drive the gasification centrifugal pump, calculations show that with a flow rate of 200 m3/h and a pressure difference of 55 kilograms, it is possible to generate approximately 300 KW of shaft power. By making use of this energy, considerable savings in electricity consumption can be achieved each year. I wonder if this blackwater hydraulic turbine is currently used in any practical applications? How effective is it? What kind of problems might arise during use? Let’s discuss it together.
Such hydraulic turbines place excessive demands on the equipment, and the quality of the graywater is poor; erosion is a major problem. I’m not sure if such systems have been implemented.
As long as the equipment can operate reliably, this energy is worth utilizing.
The issue of medium erosion is the first problem that needs to be addressed, but it is not an insurmountable one. Components such as pump casings and impellers can be treated by spraying them with cemented carbide or by welding them together; this approach does increase costs, but in the long run, these expenses are inevitable, and it would be a shame to waste them