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As a leading manufacturer with nearly a decade of expertise in environmental technology, Qingdao Conqinphi Environmental Technology is proud to present our state-of-the-art Corrosion-Resistant MVR Evaporator Unit. Engineered specifically for the demanding task of high-salinity brine concentration, this system represents the pinnacle of efficiency and durability in industrial wastewater treatment and Zero Liquid Discharge (ZLD) applications. Our 10,000-30,000 square meter production facility, backed by robust quality management systems, ensures every unit delivers reliable performance, slashing operational costs and minimizing environmental impact for our global clientele across North America, Europe, Asia, and beyond.
The core innovation lies in the Mechanical Vapor Recompression (MVR) technology, which dramatically reduces energy consumption compared to traditional multi-effect evaporators. By recompressing the vapor produced during evaporation and reusing it as a heating source, the system achieves exceptional thermal efficiency. This is particularly crucial when dealing with highly corrosive and scaling brines, where equipment longevity is a major concern. Our design directly addresses this challenge.
Key Technical Specifications & Advantages:
- Superior Corrosion Resistance: Critical components in contact with the brine are constructed from premium materials such as titanium, duplex stainless steel (2205, 2507), or specialized nickel-based alloys (Hastelloy C276), selected based on feed composition and operating conditions to ensure a long service life even with chlorides, sulfates, and other aggressive ions.
- High Thermal Efficiency: The MVR compressor, the heart of the system, is precisely matched to the vapor load, achieving a low specific steam consumption, often below 1.1 kg steam per kg of evaporated water, leading to significant energy savings.
- Robust Anti-Scaling Design: Incorporates features like high fluid velocity, optimized heat exchanger geometry, and optional online cleaning systems to minimize scaling and maintain stable heat transfer coefficients over extended periods.
- Fully Automated Operation: Integrated PLC control system with a user-friendly Human-Machine Interface (HMI) allows for automatic startup, shutdown, and continuous monitoring of key parameters (pressure, temperature, concentration, flow), reducing labor dependency and operational errors.
- Compact & Modular Construction: Designed for easier transportation and faster on-site installation, reducing overall project timelines and civil work costs.
- Adaptable Configuration: Can be integrated with pre-concentrators (like Reverse Osmosis), crystallizers, or dryers to form a complete ZLD solution tailored to specific waste stream requirements.
Typical Operational Parameters Table:
| Parameter | Range / Specification |
| Evaporation Capacity | 1 - 100 tons of water/hour (customizable) |
| Final Brine Concentration | Up to saturation or near-crystallization point |
| Primary Construction Material (Wetted Parts) | Titanium, Duplex SS 2205/2507, Hastelloy |
| Power Supply | 380V/415V, 50/60Hz (or as required) |
| Control System | PLC (Siemens/Allen-Bradley) with Touchscreen HMI |
| Design Pressure | Vacuum to 0.5 MPa (customizable) |
For businesses in chemical processing, mining, power generation, textile dyeing, or landfill leachate treatment, this evaporator translates into tangible benefits: drastic reduction in wastewater disposal costs, compliance with stringent environmental regulations, recovery of valuable salts or clean water, and a rapid return on investment thanks to its low energy footprint. Our engineering team provides comprehensive support from feed analysis and process simulation to installation supervision and operator training.
Trust in Qingdao Conqinphi is built on a solid foundation. With an annual export value ranging between US$10-50 million and a workforce of 201-300 dedicated professionals, we have successfully delivered solutions to markets worldwide. Our manufacturing processes are guided by internationally recognized standards. We invite you to leverage our expertise for your next brine management project. Contact us today to discuss your specific concentration requirements and receive a tailored proposal that demonstrates how our Corrosion-Resistant MVR Evaporator can optimize your operations and bolster your sustainability goals.
Frequently Asked Questions (FAQ):
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Q: What makes an MVR evaporator more suitable for high-salinity brine than a traditional Multi-Effect Evaporator (MEE)?
A: MVR systems reuse the latent heat of vaporization by mechanically compressing the vapor, making them significantly more energy-efficient, especially for high-boiling-point elevation brines where MEE efficiency drops. Their single-effect design also simplifies construction with corrosion-resistant materials. -
Q: How do you determine the best construction material for my specific brine?
A: We conduct a detailed analysis of your feed brine, including pH, chloride content, sulfate content, and operating temperature. Based on this and corrosion data charts, we recommend the most cost-effective and durable material, such as titanium for high chlorides or specialized alloys for complex chemistries. -
Q: Can this system handle feed with suspended solids or high scaling potential?
A: Yes. The design can include pre-filtration options, and the heat exchanger design promotes high fluid velocity to reduce scaling. Options like forced circulation or flash crystallization are available for severe scaling or crystallizing duties. -
Q: What is the typical payback period for such an investment?
A: The payback period varies based on local energy costs, disposal fees, and system capacity. Typically, the substantial savings in steam consumption (often over 90% compared to single-effect evaporation) and reduced waste disposal costs lead to a payback period of 1 to 3 years. -
Q: Do you provide a complete package, including auxiliary equipment?
A: Absolutely. We can supply a fully skidded and pre-piped package including the evaporator, compressor, pumps, control panel, pre-heaters, condenser, and necessary instrumentation, ready for connection on-site. -
Q: What kind of after-sales support and warranty do you offer?
A: We provide comprehensive support including detailed operation manuals, on-site or remote commissioning assistance, operator training, and a standard warranty on materials and workmanship. Spare parts support is available through our global supply chain. -
Q: Is the system capable of achieving Zero Liquid Discharge (ZLD)?
A: This MVR evaporator is a core component of a ZLD system. It concentrates the brine to near-saturation. For complete ZLD, it can be seamlessly integrated with a downstream crystallizer or spray dryer to produce solid salts, achieving true liquid discharge elimination. -
Q: How long does it take from order to delivery?
A: Lead time depends on the complexity and material selection. Standard configurations typically have a delivery period of 4-6 months. We work closely with clients to establish a realistic project timeline during the quotation phase.
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