Application Scope of MVR Wastewater Evaporator

MVR

It means that the pressure × volume / temperature of a certain mass of gas is a constant. That is to say, when the volume of the gas decreases and the pressure increases, the temperature of the gas will rise accordingly. According to this principle, when the thin secondary steam is compressed in volume, its temperature will rise, so as to turn the low-temperature and low-pressure steam into high-temperature and high-pressure steam. Then it can be used as a heat source to reheat the stock solution that needs to be evaporated, so as to realize the purpose of recycling steam. Since the volume compression here is realized by a mechanical compressor, it is called MVR.

Application Scope

Mechanical Vapor Recompression (MVR) evaporators are suitable for low-temperature concentration in industries such as milk, glucose, starch, monosodium glutamate, xylose, pharmaceuticals, chemicals, bioengineering, environmental protection engineering, waste liquid recovery, papermaking, and salt production.

Equipment Composition

It is composed of single-effect or triple-effect evaporator, separator, compressor, vacuum pump, circulating pump, operating platform, electrical instrument control cabinet, valves, pipelines and other systems, with a very simple structure.

Working Principle

Mechanical Vapor Recompression (MVR) evaporator uses the secondary steam generated in the evaporator. After being compressed by the compressor, the pressure and temperature rise, and the enthalpy increases. Then it is sent to the heating chamber of the evaporator as heating steam to keep the material liquid in a boiling state, while the heating steam itself condenses into water. In this way, the steam that was originally to be discarded is fully utilized, the latent heat is recovered, and the thermal efficiency is improved. The economy of live steam is equivalent to 30 effects of multi-effect evaporation, which reduces the demand for external heating and cooling resources, lowers energy consumption and reduces pollution.

Main Features

MVR energy-saving evaporator technology is a good evaporator technology at present. It only needs a small amount of live steam, which greatly reduces the operating cost of enterprises and reduces environmental pollution.

Because the compressor is used to provide heat source, compared with traditional evaporators, the temperature difference is much smaller, which can achieve gentle evaporation, greatly improve product quality and reduce scaling.
No condenser is needed, the structure and process are very simple, it can be operated automatically and run continuously.
The equipment is equipped with CIP cleaning pipelines, which can realize in-place cleaning. The whole set of equipment is easy to operate without dead corners.
The evaporator evaporates materials at low temperature without generating foam. The material liquid is uniform, no material runs off, and it is not easy to coking.

Technical Parameters

1.Evaporation capacity of the product

5L/h - 60t/h

2.Evaporation temperature

40℃ - 100℃

3.Power consumption per ton of water evaporated

25KW - 100KW

4.Fresh steam consumption

0t/h

5.Feed solid content

No requirement

6.Discharge solid content