MVR
The principle states that for a certain mass of gas, pressure times volume divided by temperature equals a constant. This means that when the volume of the gas decreases and the pressure increases, the temperature of the gas also rises accordingly. Based on this principle, when the thin secondary steam is compressed in volume, its temperature rises as well, enabling it to transform low-temperature, low-pressure steam into high-temperature, high-pressure steam. This steam can then be used as a heat source to further heat the original liquid to be evaporated, thereby achieving the goal of recycling and reusing steam. Since this volume compression is achieved through a mechanical compressor, it is referred to as MVR.
Scope of Application
Mechanical Vapor Recompression (MVR) evaporators are designed for low-temperature concentration in industries such as milk, glucose, starch, monosodium glutamate, xylitol, chemical engineering, biotechnology, environmental engineering, waste liquid recovery, papermaking, and salt production.
Equipment Composition
Composed of single or triple-effect evaporators, separators, compressors, vacuum pumps, circulation pumps, operating platforms, electrical control panels, valves, pipelines, and other systems, the structure is extremely simple.
III. Working Principle
Mechanical Vapor Recompression (MVR) evaporators utilize the secondary steam generated within the evaporator, which is then compressed by a compressor, increasing its pressure and temperature, and thus its enthalpy. This heated steam is then used in the evaporator's heating chamber to maintain the boiling state of the feed liquid, while the heating steam itself condenses into water. In this way, the once-wasted steam is fully utilized, recovering latent heat and enhancing thermal efficiency. The economic efficiency of the steam produced is equivalent to that of a 30-effect multiple-effect evaporation, reducing the demand for external heating and cooling resources, lowering energy consumption, and decreasing pollution.
Four: Key Features
The MVR Energy-saving Evaporator technology is a commendable evaporation technique currently available, requiring only a small amount of steam input, significantly reducing operational costs for enterprises and minimizing environmental pollution.
2. With a heat source provided by the compressor, the temperature difference is much smaller compared to traditional evaporators, enabling gentle evaporation. This significantly improves product quality and reduces scaling.
3. No need for a condenser; the structure and process are extremely simple, with fully automatic operation and continuous run capability.
4. Equipped with CIP cleaning lines, the equipment allows for on-site cleaning, featuring easy operation and no blind spots.
The evaporator operates by evaporating material at low temperatures without foam formation, ensuring a uniform liquid flow, no material leakage, and minimal tendency to coking.
V. Technical Specifications
Product Evaporation Capacity: 5L/h - 60t/h
Evaporation Temperature: 40℃-100℃
3. Evaporation power consumption per ton of water: 25KW-100KW
4. Fresh Steam Consumption: 0t/h
5. No specific requirement for solid content in incoming materials.
6. Feed Solid Content: Can be directly evaporated to crystallize
7. Evaporation modes include: falling film, rising film, forced circulation, fluidized bed evaporation, countercurrent, stirring, spiral tube, and other methods.
8. Heat Exchanger Components: Can be designed as plate-type, tube-type evaporators, etc.
