MVR Mechanical Vapor Recompression Evaporator

01. MVR energy-saving evaporator technology is currently the most advanced evaporator technology, requiring only a minimal amount of live steam (a small amount is needed during startup, and almost none is required during normal operation), greatly reducing enterprise operating costs and environmental pollution.

02. Due to the use of a compressor to provide the heat source, the temperature difference is much smaller compared to traditional evaporators, enabling gentle evaporation, significantly improving product quality, and reducing scaling.

03. No condenser or only a very small condenser is needed. The structure and process are very simple, fully automated, capable of continuous operation, safe and reliable.

04. The equipment is equipped with CIP cleaning pipelines, enabling in-place cleaning. The entire system is easy to operate with no dead corners.

05. This evaporator operates at low temperatures (evaporation temperature 50°C-100°C) without foam generation. The material liquid is uniform, does not escape, is not prone to coking, and minimizes heat-induced denaturation of the material.

06.MVR evaporator requires about twice the installation space of a conventional multi-effect evaporator, and the equipment investment is higher, but the operating costs are much lower than those of conventional multi-effect evaporators.

07. To avoid operator errors or malfunctions caused by incorrect operation, an automatic control system to protect the equipment is necessary.

08. Traditional multi-effect evaporators use fresh steam as an energy source. For example, a five-effect evaporator typically consumes 0.23 tons of fresh steam to evaporate 1 ton of water. MVR mechanical vapor compression evaporators consume electrical energy, typically using 15-27 kWh to evaporate 1 ton of water. For materials with a small boiling point elevation, the electricity consumption can be below 20 kWh per ton of water. The degree of energy savings is closely related to the local price of fresh steam and electricity. For example, if steam costs 180 RMB/ton and electricity costs 0.7 RMB/kWh, compared to a five-effect evaporator, the energy cost saving per ton of water evaporated is 0.23*180 - 20*0.7 = 27.4 RMB. With an evaporation capacity of 100 tons, operating 24 hours a day for 330 days a year, the annual energy saving would be 27.4*100*24*330 = 21,700,800 RMB. MVR evaporators save over 60% energy compared to five-effect evaporators.

09. The price of an MVR mechanical vapor compression evaporator is about twice that of a multi-effect evaporator. For new projects, the additional investment for an MVR can generally be recovered within 300 operating days. For energy-saving retrofit projects replacing an existing multi-effect evaporator with an MVR, the investment can typically be recovered within 500 operating days.

10. In special regions where steam costs are very low and electricity prices are very high, the economic advantages of MVR mechanical vapor compression evaporators are not significant, and their use is not recommended.

Common Model Specifications: NMVR-XX

XX - Water evaporation capacity (t/h): Minimum 0.2, Maximum 600, specific according to customer requirements.

Application Scope:

Suitable for evaporation, concentration, and crystallization of various materials, especially products with a small boiling point rise (BPR) or easily evaporable dilute materials.