China MVR Evaporation Plant Suppliers - Energy-Efficient Factory Solutions for Food, Chemicals, and Wastewater

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Discover the advantages of Mechanical Vapor Recompression (MVR) plants, an innovative solution that significantly reduces operational costs by harnessing electricity to compress vapors for reuse as a heating medium. With low energy consumption, these systems ensure gentle low-temperature evaporation and high operational flexibility, making them essential for various industries. As a leading supplier in China, our factory specializes in MVR technology, catering to sectors such as food processing, chemicals, and wastewater treatment. Experience superior efficiency and sustainability with our advanced MVR plants.

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Product Description

Description

MVR Evaporation plant delivers substantial operational cost savings in areas with an ample supply of low-cost electrical energy.

Once an MVR evaporation plant is running, little or no additional steam is required. In the MVR evaporation plant, a centrifugal fan is used to recompress the vapour to a higher pressure, resulting in a temperature rise. This means that the recompressed vapour can be used as the evaporation plant heating medium, while the condensate is ideal for preheating of the feed product.

For low boiling point increases, a single-stage compressor can be used to fulfill the requirements of the design.

For high boiling point increases, we will provide two designs: multiple-stage compressors, single stage compressors combined with multiple-effect.

The MVR evaporation plant almost doesn't use steam, but electric energy is required as the main energy source.

The power consumption of the main motor of MVR is due to the heat exchange area and the evaporating temperature of the evaporation plant. The Heat exchange area is bigger, and as a result, power consumption is lower, but the investment in equipment is increased.

Evaporating temperature is higher and as a result, power consumption is lower, but fouling in the calandria is therefore increased; Evaporating temperature is lower and as a result, power consumption is higher.

MVR can be powered by an electric motor, the rotary speed of an MVR can be controlled by a frequency converter, and the rotary speed of an MVR may control the evaporation rate and final concentration of the MVR evaporation plant.

MVR Evaporation Plant Detail (1)
MVR Evaporation Plant Detail (2)
MVR Evaporation Plant Detail (3)
Particular Feature
  • Low specific energy consumption.
  • Gentle evaporation of the product due to low temperature differences largely increases product quality, decreases fouling.
  • Short residence times of the product, as a single-effect system is most often used.
  • Only a small area condenser, requiring little cooling water.
  • High availability of the plants due to the simplicity of the process.
  • Excellent partial load behaviour.
  • Low specific operating costs.
MVR Evaporation Plant Detail (4)
Fields of Application
๐Ÿญ
Particularly suited for the food and beverages industry (evaporation of milk, whey, sugar solutions), chemical industry (evaporation of aqueous solutions), the salt works industry (evaporation of saline solutions), and environmental protection technology (concentration of waste water).
MVR Evaporation Plant Compared with a Normal Multiple-effect Evaporation Plant
Type Multiple-effect evaporation plant / TVR evaporation plant MVR evaporation plant
Energy sources Steam Electric power
Energy consumption of concentrating water of 1 ton, per hour 0.16โ€“0.6T 18โ€“26 Kw
๐Ÿ’ก For Example
Evaporation rate: 50T/h | Unit price of steam: 160 RMB/T | Unit price of electric power: 0.8 RMB/Kw | 8,000 hours per annum
Type 4-effect evaporation plant MVR evaporation plant
Energy consumption Steam: 11T/h Electric power: 1,000 Kw/h
Expense of energy consumption, per annum 14,080,000 RMB 6,400,000 RMB
Economizing expense, per annum Zero 7,680,000 RMB

Legend:

1. Evaporator

2. Condenser

3. Plate heat exchanger

4. MVR

5. Condensate Tank

A. Liquor

B. Product

C. Condensate

D. Fresh steam

E. Cooling water

F. Deaeration

MVR Evaporation Plant Detail (5)
Type Selection Criteria for Evaporation Plants

When we design evaporation plants, various requirements must be considered. These determine the type of design, arrangement, the resulting process, the cost of investments, and running expenses.

โš™๏ธ The most important requirements:

๐Ÿ“Š Capacity and Operation Data
  • Name of Product
  • Feeding concentration (dry materials %)
  • Feeding temperature
  • Final concentration (dry materials %)
  • Evaporation rate (T/h)
  • If crystallization, requirement of crystals
  • Requirement of controlling, automatization
๐Ÿงช Product Properties
  • Product properties
  • Viscosity and flow properties
  • Tendency of foaming
  • Fouling and precipitation
  • Boiling Point
โšก Utility Requirements
  • Steam pressure / temperature
  • Temperature of Cooling water feeding
  • Voltage / frequency
  • Unit price of steam (RMB/T)
  • Unit price of electric power (RMB/Kw)
โ™ป๏ธ Waste Heat Parameter
  • Waste vapour rate from dryer
  • Wet bulb temperature of waste vapour from dryer
  • Condensate rate from dryer
  • Condensate temperature from dryer
  • Liquefaction vapour rate
  • Liquefaction vapour temperature
  • Others
๐Ÿ”ง Selection of Materials
  • Material of heating pipe
  • Material of tube plate
  • Material of contacting with liquor
  • Material of contacting with secondary steam
  • Requirement of surface finish
๐ŸŒฑ Energy Efficiency of Evaporation Plants
  • Multiple-effect evaporation plant
  • TVR evaporation plant
  • MVR evaporation plant
  • Waste heat evaporation plant
Frequently Asked Questions
โ“ What is an MVR Evaporation Plant and how does it work?
An MVR (Mechanical Vapor Recompression) Evaporation Plant uses a centrifugal fan to recompress vapour to a higher pressure, raising its temperature. This recompressed vapour is then used as the heating medium within the evaporation plant, while the condensate is used to preheat the incoming feed product. This closed-loop process significantly reduces energy consumption compared to conventional evaporation systems.
โ“ What are the main energy advantages of MVR evaporation plants over multiple-effect evaporation plants?
MVR evaporation plants primarily use electric power instead of steam. For example, with an evaporation rate of 50T/h and 8,000 operating hours per year, a 4-effect evaporation plant may cost 14,080,000 RMB annually in energy, while an MVR plant costs only 6,400,000 RMB โ€” saving approximately 7,680,000 RMB per year.
โ“ What industries are MVR evaporation plants best suited for?
MVR evaporation plants are particularly well-suited for the food and beverages industry (evaporation of milk, whey, and sugar solutions), the chemical industry (evaporation of aqueous solutions), the salt works industry (evaporation of saline solutions), and environmental protection technology (concentration of waste water).
โ“ How does evaporating temperature affect the power consumption of an MVR system?
A higher evaporating temperature results in lower power consumption, but it increases fouling in the calandria. Conversely, a lower evaporating temperature increases power consumption. Similarly, a larger heat exchange area reduces power consumption but increases equipment investment costs. These trade-offs must be carefully balanced during the design phase.
โ“ Can the evaporation rate of an MVR plant be controlled?
Yes. The MVR can be powered by an electric motor whose rotary speed is controlled by a frequency converter. By adjusting the rotary speed of the MVR, operators can precisely control both the evaporation rate and the final concentration of the product in the MVR evaporation plant.
โ“ What key parameters are needed to select the right type of evaporation plant?
Selecting the correct evaporation plant requires evaluating multiple factors including capacity and operation data (evaporation rate, feed and final concentrations), product properties (viscosity, boiling point, fouling tendency), utility requirements (steam pressure, cooling water temperature, electricity pricing), waste heat parameters, and material selection requirements for components in contact with the process fluids.

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