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Qingdao Conqinphi Environmental Technology Group Co., Ltd. is a leading manufacturer of advanced water treatment solutions, and our MVR Multi-Effect Evaporator for Seawater Desalination Equipment represents the epitome of energy-efficient, high-recovery desalination technology. With over 10 years of expertise since 2015, we have supplied our systems to clients across North America, South America, Europe, and Asia, achieving annual export values exceeding US$10 million. This innovative evaporator combines mechanical vapor recompression (MVR) with multi-effect distillation (MED) to deliver fresh water from seawater at significantly lower operational costs compared to conventional methods.
Our MVR-MED system is designed for industrial-scale desalination projects, offering capacities from 100 to 5,000 cubic meters per day. It features a robust construction using high-grade stainless steel, intelligent PLC control, and a compact layout that minimizes footprint. Whether you need potable water for remote communities, process water for refineries, or make-up water for power plants, this equipment is engineered to meet the most demanding requirements while maintaining exceptional reliability.
The core advantage of our technology lies in its energy consumption: by reusing the latent heat of vapor, the MVR compressor reduces thermal energy input by up to 90% compared to traditional multi-effect evaporators. This not only cuts electricity costs but also lowers carbon emissions, aligning with global sustainability goals.
Key Features & Technical Specifications
- Energy Efficiency: MVR vapor recompression technology reduces specific energy consumption to 8–15 kWh/m³, depending on seawater salinity and temperature.
- High Recovery Rate: Achieves up to 50% water recovery from seawater (typical TDS 35,000 ppm), with brine concentration up to 70,000 ppm.
- Multiple Effect Design: 3–8 effects available, with each effect utilizing the latent heat from the previous stage, maximizing thermal efficiency.
- Corrosion-Resistant Materials: All wetted parts are made of SS 316L or Duplex stainless steel, with optional titanium heat exchangers for high-chloride environments.
- Smart Control System: Fully automated operation via PLC and HMI, with remote monitoring capabilities (optional). Real-time data logging for temperature, pressure, flow, and conductivity.
- Low Operating Temperature: Operates at 60–70°C, reducing scaling and fouling, which extends cleaning intervals and equipment lifespan.
- Modular Construction: Skid-mounted or containerized design for easy installation, transportation, and scalability.
| Parameter | Value Range |
|---|---|
| Fresh Water Output | 100 – 5,000 m³/day |
| Electrical Power Consumption | 8 – 15 kWh/m³ |
| Operating Temperature | 60 – 120°C (adjustable) |
| Seawater Feed TDS | up to 45,000 ppm |
| Product Water TDS | < 10 ppm (single pass) |
| Number of Effects | 3 – 8 (customizable) |
| Compressor Type | Centrifugal or Roots blower (optional) |
Customer Benefits
- Lower Operating Costs: Compared to RO or thermal desalination, MVR-MED cuts electricity and chemical costs by 30–50%.
- Minimal Environmental Impact: No chemical pretreatment required for most seawater sources; reduced brine volume and temperature.
- Long Service Life: With proper maintenance, the system lifespan exceeds 20 years, thanks to corrosion-resistant materials and robust design.
- Flexible Integration: Can be combined with solar, wind, or waste heat recovery systems for even lower carbon footprint.
Trust & Credibility
Since 2015, Qingdao Conqinphi Environmental Technology Group Co., Ltd. has grown into a 10,000–30,000 m² manufacturing facility, employing over 200 skilled professionals. Our annual export value of US$10–50 million reflects the global trust in our products. We are proud to hold multiple certifications, including ISO9001, ISO14000, OHSAS18001, SA8000, and HACCP, ensuring that every unit meets the highest standards of quality, safety, and social responsibility. Our main markets span across North America, South America, Europe, Africa, and Asia, with thousands of successful installations worldwide.
We provide comprehensive after-sales support, including on-site commissioning, training, and 24/7 technical assistance. With flexible shipping options from Qingdao port, we can deliver to any global destination. Our team is ready to customize the MVR evaporator to your specific seawater chemistry and capacity needs.
Contact us today to request a detailed proposal, performance simulation, or pilot trial. Let Qingdao Conqinphi be your trusted partner in sustainable seawater desalination.
Frequently Asked Questions
Q1: What is the difference between MVR and traditional multi-effect evaporators?
A: MVR uses a mechanical compressor to recompress vapor, raising its temperature and pressure, which is then reused as heating steam. This eliminates the need for external steam, reducing energy consumption by up to 90% compared to conventional MED.
Q2: Can this system handle high-salinity seawater?
A: Yes, our standard design can handle TDS up to 45,000 ppm. For higher salinities, we offer optional titanium heat exchangers and anti-scaling chemicals.
Q3: What is the typical payback period?
A: Depending on local electricity prices and water demand, the payback period is typically 2–4 years due to substantial energy savings.
Q4: Do you provide installation and training?
A: Yes, we offer worldwide commissioning, operator training, and a 12-month warranty. Extended service contracts are available upon request.
Q5: What certifications does your equipment have?
A: Our factory is certified with ISO9001, ISO14000, OHSAS18001, SA8000, and others. Components may carry CE, ASME, or other standards based on customer requirements.
Q6: Can the system be powered by renewable energy?
A: Absolutely. The MVR compressor can be driven by solar PV or wind turbines, making it ideal for off-grid or remote areas.
Q7: What is the minimum order quantity?
A: We accept orders for a single unit, with typical lead time of 60–90 days depending on customizations.
Q8: How do you ensure product quality?
A: We have strict quality control from raw material inspection to final testing. Each unit undergoes factory acceptance testing (FAT) before shipment.
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