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723results about "Evaporator regulation/control" patented technology

Self-circulating crystallizer and multistage continuous crystallization method

ActiveCN108939599AReduce the chance of collision nucleationStable particle sizeEvaporator accessoriesSolution crystallizationGranularityEvaporation
The invention relates to a self-circulating crystallizer and a multistage continuous crystallization method. The crystallizer sequentially comprises a kettle head, an upper cylinder body, a middle cylinder body and a bottom hole-shrinkage cylinder body with a W-shaped bottom from top to bottom, wherein a steam outlet and / or a feeding hole are / is arranged on the kettle head, an annular spraying pipe is arranged at the lower part of the kettle head; a middle straight cylinder section is arranged in the middle cylinder body, a flow guiding cylinder is arranged in the middle straight cylinder section, and a stirrer is arranged in the flow guiding cylinder; the diameter of the middle cylinder body is larger than that of the upper cylinder body, and the diameter of the upper cylinder body is larger than that of the middle cylinder body; and the lower part of the upper cylinder body and the upper part of the middle cylinder body are respectively connected with the circumference of the top ofthe middle straight cylinder section via a hole-shrinkage transition section, and a discharging hole is formed in the W-shaped bottom. The invention provides the method for realizing multistage continuous evaporation, cooling or reaction crystallization through the series connection of the crystallizer, the prepared crystals are large in granularity and uniform in particle size, the problems thatthe product granularity is small, equipment is seriously scaled, a pipeline is blocked, and the like in the continuous crystallization process are improved, and the operation period of the continuouscrystallization process is prolonged.
Owner:TIANJIN UNIV

Mechanical steam recompression system and control method

The invention provides a mechanical steam recompression system comprising an evaporative condenser, a centrifugal compressor, a screw compressor, an electric water heater, a vapor-liquid separator and a fresh water box. The evaporative condenser communicates with the centrifugal compressor and the screw compressor; a first valve and a drain separator are arranged between the evaporative condenser and the centrifugal compressor; a second valve is arranged between the evaporative condenser and the screw compressor; the centrifugal compressor communicates with the screw compressor; an outlet of the screw compressor communicates with the an inlet of the screw compressor; and the screw compressor communicates with a condensing tube of the evaporative condenser through the vapor-liquid separator. The mechanical steam recompressing system provided by the invention is a mechanical steam recompressing system which has no need to start heat-source steam, can realize a high vapor pressure ratio (Saturated temperature rise of compressed steam) and high vapor flow, and has higher energy efficiency. In addition the mechanical steam recompression system has functions of expanding the application range of conventional mechanical steam recompression systems and realizing industrial energy conservation.
Owner:HUAWEI TEHCHNOLOGIES CO LTD
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