Principle of the MVR system:

MVR is the abbreviation for mechanical vapor recompression technology. MVR is an energy-saving technology that reuses the energy of the secondary steam it produces, thereby reducing the need for external energy. Its basic working principle is to compress the secondary steam from the evaporator through a high-energy efficiency steam compressor, convert electrical energy into heat energy, increase the pressure and temperature of the secondary steam, and after the temperature rises, the secondary steam returns to the evaporator to heat the material. Evaporation, thereby achieving the purpose of recycling the latent heat of vaporization of the secondary evaporation.

Characteristics of centrifugal steam compressor：

The impeller adopts internationally leading three-dimensional flow design technology for aerodynamic design, with reliable performance and high efficiency. The impeller is milled by a five-axis CNC milling machine and adopts a semi-open structure to ensure sufficient strength and safe operation of the impeller. Conduct an over-running test after machining the impeller. The impeller is installed on the high-speed gear shaft of the gearbox, with a simple structure. After assembly, it is subjected to static and dynamic balance tests to ensure balanced and reliable operation of the fan.

Application scope of centrifugal vapor compressor:

It can be used in petrochemical industry, papermaking, food processing, dairy industry, wine making, starch processing, papermaking industry, industrial wastewater treatment, pharmaceutical industry, biological engineering, seawater desalination and other fields.

product advantages：

Clean energy, high thermal efficiency, low power, and no pollution; truly achieve "zero emission" of industrial wastewater. When designing hydrodynamics, there is a flat performance curve and excellent performance under some loads. Good sealing effect and can provide 100% oil-free high-quality steam. High degree of automation, 24-hour real-time monitoring, orderly management and timely alarm of failures. Compact structure, small size, strong mobility; less wearing parts, less maintenance, and long operating cycle.

Performance comparison between MVR and traditional multi-effect evaporator:

Energy saving:The latent heat of secondary steam is recycled 100%; the circulation of cooling water is eliminated, which greatly reduces the problems of water consumption, power consumption, and high maintenance costs caused by the cooling tower to achieve low-temperature evaporation. The minimum evaporation can reach 30 degrees. The structure is compact and the operation is smooth and has a high degree of automation.

Annual operating cost 1,455,300RMB 6,890,400RMB, annual operating cost saving 5,435,100RMB (79% operating cost saving compared with four-effect evaporation)

Working hours: 24 hours/day 330 days/year

Electricity price: 0.5 RMB/KW/h

Steam price: 150 RMB/ton

Can be used in petrochemical industry, food processing, dairy industry, wine making, starch processing, papermaking industry, industrial wastewater treatment, pharmaceutical industry, bioengineering, seawater desalination and other fields。

20 tons/hour evaporation capacity Operating costs (high-concentration organic wastewater)

established bei

MVR evaporator

Traditional multi-effect falling film steam heating evaporator

mechanical compressor

315 KW/h

157.5 RMB

Circulation pump power consumption

30 KW/h

5 RMB

30 KW/h

15 RMB

Condensate pump consumes electricity

15 KW/h

7.5 RMB

15 KW/h

7.5 RMB

Vacuum pump consumes electricity

7.5KW/h

3.75RMB

15 KW/h

7.5RMB

Cooling tower power consumption

0

7.5 KW/h

3.75 RMB

cooling water circulation pump

0

22.5 KW/h

11.25 RMB

Xian Zheng Qi

0

5500kg/h

825 RMB

cooling water

30 m3/h

330 m3/h

Cost per hour

183.75

RMB

870RMB

cost per ton

9.18 RMB

43.5 RMB