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Help CenterMulti-effect MVR Evaporator, Mill Test Report Provided, On-site Commissioning Service
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Qingdao Conqinphi Environmental Technology Group Co., Ltd. (established 2015, factory area 10,000–30,000 m², 201–300 employees) brings you the Multi-effect MVR Evaporator — a high-efficiency solution for reducing evaporation energy consumption by up to 70% compared to traditional single-effect systems. Our unit combines multi-effect evaporation with mechanical vapor recompression (MVR) technology, delivering exceptional performance for wastewater concentration, zero liquid discharge (ZLD), and chemical recovery. With a mill test report provided for every unit and on-site commissioning service included, we ensure your equipment operates flawlessly from day one.
Leveraging our annual export value of US$10–50 million and global presence across North America, South America, Europe, Asia, Africa, and Oceania, we have supplied over 500 evaporation systems worldwide. Our engineers support you through every step — from process design to startup — making your investment secure and profitable.
Key Features & Technical Advantages
- Multi-effect + MVR hybrid design: Combines multiple evaporation stages with mechanical vapor recompression for maximum energy efficiency. The compressor raises the temperature of the vapor, which is then used as heating medium in the preceding effect, drastically reducing steam consumption.
- Low operating cost: Typical specific energy consumption is only 15–40 kWh per ton of water evaporated, depending on feed characteristics and number of effects. Compared to conventional evaporators, you save 60–80% on energy bills.
- Robust construction: Available in stainless steel 316L, duplex stainless steel, or titanium — selected based on your feed chemistry. All wetted parts are corrosion-resistant and suitable for high-salinity, acidic, or alkaline streams.
- Automated control: Equipped with Siemens or Schneider PLC + HMI touchscreen, allowing real-time monitoring of temperature, pressure, flow rate, and compressor speed. The system automatically adjusts to maintain optimal evaporation rate and prevent scaling or fouling.
- Wide capacity range: Single-unit capacity from 1 m³/h to 200 m³/h. Multiple units can be parallelized for larger flows. Customized designs available for high-viscosity, high-fouling, or heat-sensitive materials.
- Mill Test Report (MTR) provided: Each evaporator is factory-tested under simulated conditions. The MTR includes performance curves, material certifications, and pressure test records, ensuring full compliance with your specifications.
- On-site commissioning service: Our senior engineers travel to your site to supervise installation, cold commissioning, hot commissioning, and operator training. We guarantee the system reaches its design capacity within 7–14 days.
Technical Specifications (Typical Configuration)
| Parameter | Value | Remarks |
|---|---|---|
| Number of effects | 2 – 4 (customizable) | More effects = higher efficiency |
| Compressor type | Centrifugal or Roots blower | Selected based on ΔT required |
| Evaporation temperature | 50°C – 90°C (first effect) | Lower temperature possible for heat-sensitive fluids |
| Maximum TDS in feed | Up to 250,000 ppm | Higher with special design |
| Power consumption | 15 – 40 kWh/m³ of evaporated water | Depends on conditions |
| Steam consumption | 0 – 0.1 kg steam / kg vapor | Near zero when MVR is fully utilized |
| Control interface | Siemens S7-1200 / Schneider M221 | Remote monitoring optional |
Benefits to Your Business
- Reduce energy costs dramatically — the MVR compressor recycles the latent heat of vaporization, so you only pay for electricity (and minimal steam if needed). Payback period is typically 8–18 months.
- Minimize wastewater discharge — achieve ZLD by concentrating the stream to a slurry or crystallized solid, helping you meet stringent environmental regulations.
- Recover valuable by-products — concentrate chemicals, salts, or organics for reuse, turning waste into revenue.
- Low maintenance — no complex steam traps or vacuum systems; the compressor is the only rotating part. Routine inspection once every 6 months.
- Scalable and flexible — modular design allows easy expansion. The same unit can handle varying feed rates and compositions.
- Safe and reliable — all pressure vessels are designed to ASME / PED standards. Over-temperature and over-pressure protection are standard.
Why Choose Qingdao Conqinphi?
As a manufacturer with a 10,000–30,000 m² factory and over 200 employees, we have a dedicated R&D team of 30+ engineers. Our products are exported to more than 30 countries, with annual export value exceeding US$10 million. We have a proven track record of supplying evaporators for industries such as chemical, pharmaceutical, food & beverage, mining, and municipal wastewater. Each unit is accompanied by a comprehensive mill test report and our on-site commissioning service ensures seamless integration. We also offer 24/7 technical support and spare parts supply within 72 hours. Contact us today to receive a customized proposal and project quotation — let us help you reduce your evaporation cost and meet your environmental goals.
Frequently Asked Questions
Q1: What is the difference between a multi-effect evaporator and an MVR evaporator?
Traditional multi-effect evaporators use steam from a boiler as the heating medium for each effect, consuming large amounts of steam. MVR evaporators use a mechanical compressor to raise the temperature of the vapor, which is then recycled as the heating source. The multi-effect MVR evaporator combines both technologies — the compressor recompresses vapor from the last effect, and the compressed vapor is used to heat the first effect, further reducing energy consumption. This hybrid design is ideal for applications where a small amount of steam is still needed for start-up or to compensate for heat losses.
Q2: Can the evaporator handle high-fouling fluids like brine or landfill leachate?
Yes. Our evaporators are designed with anti-scaling features such as forced circulation, internal baffles, and periodic CIP (clean-in-place) nozzles. For high-fouling applications, we recommend a forced circulation (FC) configuration with a draft tube, which maintains high velocity to prevent scaling. The mill test report will include scaling tendency analysis based on your feed water sample.
Q3: What kind of compressor is used? Is it reliable?
We offer both centrifugal compressors (for larger capacities and higher pressure ratios) and Roots blowers (for smaller capacities and low ΔT). Both types are sourced from reputable manufacturers and have a service life of 10+ years with proper maintenance. We provide a 2-year warranty on the compressor.
Q4: Do you provide the mill test report before shipment?
Absolutely. The mill test report (MTR) is generated during the factory acceptance test (FAT). It includes performance data, material certifications, hydrostatic test results, and dimensional checks. We will send you a digital copy for review before shipment, and the original hard copy accompanies the equipment.
Q5: What is included in the on-site commissioning service?
Our standard commissioning package includes: one senior engineer (travel expenses covered by client), supervision of installation, mechanical and electrical checks, cold commissioning (water test), hot commissioning (with actual feed), performance verification, and operator training for 2–3 days. We guarantee the system reaches 95% of the designed capacity within 10 days of start-up.
Q6: What is the typical lead time?
For standard configurations (capacity up to 50 m³/h), lead time is 45–60 days. For larger or customized units, it may extend to 90–120 days. We can expedite if you have urgent requirements.
Q7: Can the evaporator be integrated with existing plant utilities?
Yes. Our system is designed to interface with your existing steam, cooling water, compressed air, and electrical systems. We will provide a detailed utility requirement list during the proposal stage. On-site commissioning ensures proper integration.
Q8: What certifications do you have for the evaporator?
Our factory is ISO9001 certified. The evaporator components can be manufactured to ASME, PED, or other international standards upon request. We also have experience with CE marking, ATEX, and other regional requirements. Please specify your desired certification during inquiry.
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