China MVR Evaporation Plant Suppliers - High-Efficiency Factory Solutions for Low-Energy Consumption

China's leading Suppliers of Mechanical Vapor Recompression (MVR) plants offer exceptional operational savings by efficiently using electricity to compress vapors, which can then be reused as a heating medium. These innovative systems are designed for low energy consumption, enabling gentle low-temperature evaporation and providing high operational flexibility. As a top Factory in the industry, we ensure our MVR plants are widely utilized across various sectors, including food processing, chemical production, and wastewater treatment, helping businesses enhance efficiency and reduce costs

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
🏭
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 0.16–0.6T 18–26 Kw
⚠️ 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

Diagram 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.

📋 The Most Important Requirements
⚙️ 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

🔬 Product Properties

Product properties

Viscosity and flow properties

Tendency of foaming

Fouling and precipitation

Boiling Point

💡 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)

♻️ 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

🔧 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

⚠️ Energy Efficiency of Evaporation Plants

Multiple-effect evaporation plant

TVR evaporation plant

MVR evaporation plant

Waste heat evaporation plant

Frequently Asked Questions
Q What is an MVR Evaporation Plant and how does it work?
An MVR (Mechanical Vapour Recompression) Evaporation Plant uses a centrifugal fan or compressor to recompress the secondary vapour generated during evaporation to a higher pressure, raising its temperature. This recompressed vapour is then reused as the heating medium within the evaporator, significantly reducing the need for external steam and cutting energy costs.
Q What are the main energy advantages of an MVR Evaporation Plant over a traditional multiple-effect evaporation plant?
MVR evaporation plants primarily use electric power rather than steam. For example, at an evaporation rate of 50T/h, a 4-effect evaporation plant consumes steam costing approximately 14,080,000 RMB per annum, while an MVR plant requires only about 6,400,000 RMB in electricity — saving up to 7,680,000 RMB annually.
Q What industries are best suited for MVR Evaporation Plants?
MVR Evaporation Plants are particularly suited for the food and beverages industry (e.g., evaporation of milk, whey, and sugar solutions), the chemical industry (aqueous solutions), the salt works industry (saline solutions), and environmental protection technology (concentration of wastewater).
Q How does the heat exchange area affect the power consumption of an MVR system?
A larger heat exchange area results in lower power consumption for the MVR compressor motor, as the temperature differential required is reduced. However, increasing the heat exchange area also raises the initial capital investment in equipment. The optimal balance between energy efficiency and investment cost must be carefully evaluated during design.
Q Can the evaporation rate and concentration of an MVR plant be controlled?
Yes. The MVR compressor is driven by an electric motor whose rotary speed can be precisely controlled using a frequency converter (variable frequency drive). By adjusting the rotary speed, operators can effectively regulate both the evaporation rate and the final concentration of the product in the MVR evaporation plant.
Q What information is needed to select the right type of evaporation plant?
Selecting the right evaporation plant requires detailed information across several categories: capacity and operation data (product name, feeding/final concentration, evaporation rate), product properties (viscosity, foaming tendency, boiling point), utility requirements (steam pressure, cooling water temperature, energy prices), waste heat parameters, material selection criteria, and energy efficiency preferences among multiple-effect, TVR, MVR, or waste heat evaporation systems.

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