The TVR plate-type multi-effect evaporation system connects two or more effect units to form a complete energy-saving evaporation system. Within this system, a steam ejector (TVR) is utilized to further enhance energy savings. Commonly used systems include double-effect, triple-effect, quad-effect, and penta-effect evaporation and crystallization systems for concentration or crystallization purposes.
Before entering the evaporator, the feed liquid typically passes through a preheater where it is preheated using another heat source to improve evaporation efficiency.
The preheated feed liquid enters the evaporator and is heated to its boiling point under appropriate pressure, forming water vapor and a concentrated liquid.
The generated secondary steam is sent to a steam ejector and mixed with high-pressure, high-temperature steam, resulting in an increase in temperature and pressure.
The mixed steam then enters the heater, providing a heat source for the evaporator and enabling the recycling of energy.
The heated steam condenses into water in the condenser, part of which can be recycled while the rest is discharged as wastewater.
The (TVR+) combined plate-and-tube evaporator-crystallizer is an evaporator type first developed and launched by our company into the market. It features advanced technology, easy operation, high cost-effectiveness in investment and energy saving, low maintenance costs, and significant energy-saving effects.
It can be freely combined into an evaporation-crystallization system that matches the evaporation medium well. For instance, falling film multi-effect, forced circulation multi-effect, and multi-effect evaporation-crystallization systems that combine falling film and forced circulation can all be further enhanced with the addition of steam ejectors to form a more energy-efficient TVR multi-effect system. The TVR steam ejector pump is used to recompress part of the secondary steam as a heat source for subsequent effects.
Using TVR requires a stable supply of steam. The performance of TVR directly affects the steam-saving effect, so it is necessary to use products with guaranteed operational performance. If the quality and performance of the steam ejector pump are poor, the steam-saving effect will not be significant, and it may easily be damaged due to loud noise and significant vibration.
It is suitable for concentration, evaporation, and crystallization in situations where steam prices are relatively low. The pump has a relatively small flow rate and installed power, resulting in low power consumption. The system is equipped with a CIP cleaning system, enabling on-site cleaning. The choice of crystallizer depends on the type of precipitated crystals, with options including the forced circulation crystallizer (FC), Oslo (OSL) crystallizer, and DTB crystallizer.
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