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Welcome to Qingdao Conqinphi Environmental Technology Group Co., Ltd. – a professional manufacturer with over 300 employees and a factory spanning 30,000 square meters. As a trusted supplier in the environmental equipment industry since 2015, we are proud to introduce our Energy-Saving Tubular Three-Effect Evaporator with MVR Technology and Vacuum System. This advanced system integrates mechanical vapor recompression (MVR) with a multi-effect tubular design and vacuum operation, delivering exceptional energy efficiency (up to 70% reduction compared to traditional evaporators) and reliable performance for liquid concentration and wastewater treatment. Our evaporator is built to meet the demanding needs of industries such as chemicals, pharmaceuticals, food processing, and environmental engineering, ensuring lower operating costs and a smaller carbon footprint.
The core innovation lies in the MVR technology, which reuses vapor heat by compressing it to a higher temperature and pressure, dramatically reducing steam consumption. Combined with a three-effect falling film or forced circulation tubular structure, the system achieves high heat transfer coefficients and stable operation under vacuum conditions. The vacuum system lowers the boiling point of the liquid, allowing for gentle treatment of heat-sensitive materials and further energy savings. Below we detail the key features, technical specifications, and benefits that make this evaporator a top choice for industrial clients worldwide.
Key Features & Advantages
- Energy-Saving MVR Design: Utilizes a high-efficiency centrifugal compressor that recycles secondary steam, reducing energy consumption to as low as 30 kWh per ton of evaporated water – roughly one-third of conventional multi-effect evaporators.
- Three-Effect Tubular Configuration: Each effect is equipped with shell-and-tube heat exchangers (tubular design) for easy cleaning and high fouling resistance. The three-stage arrangement maximizes temperature differences and vapor utilization.
- Vacuum System Integration: A vacuum pump maintains negative pressure in the last effect, lowering boiling temperatures (typically 40-70°C) to prevent thermal degradation of sensitive compounds. This also enhances the overall energy efficiency by using low-grade heat.
- Robust Material Options: Standard construction in 304 or 316L stainless steel, with optional titanium or duplex steel for corrosive streams. All wetted parts are passivated and polished for hygiene and longevity.
- Fully Automatic PLC Control: The system is equipped with a Siemens or equivalent PLC, HMI touchscreen, and sensors for real-time monitoring of temperature, pressure, liquid level, flow rate, and concentration. Automatic start/stop, CIP cleaning cycles, and alarm systems reduce labor requirements.
- Compact & Modular Layout: Pre-assembled skid-mounted design reduces on-site installation time and footprint. The evaporator can be integrated into existing lines with minimal disruption.
- Wide Application Range: Suitable for concentration of solutions (e.g., salt solutions, organic solvents, food extracts) and treatment of high-salinity wastewater, landfill leachate, and industrial effluents.
Technical Specifications (Typical Range)
| Parameter | Value / Range | Remarks |
| Evaporation capacity | 1 – 50 m³/h | Customizable based on client requirements |
| Number of effects | 3 | Optional 2 or 4 effects available |
| Operating pressure (last effect) | -0.08 ~ -0.095 MPa (vacuum) | Ensures low boiling temperature |
| Evaporating temperature | 40 – 70 °C (at vacuum) | Depends on feedstock properties |
| MVR compressor power | 30 – 300 kW | Centrifugal or roots type |
| Specific energy consumption | 20 – 35 kWh per m³ of evaporated water | Under typical conditions |
| Heat transfer area per effect | 50 – 500 m² | Sized per capacity |
| Material of construction | SS304/316L, optional Ti, Hastelloy | Resistant to corrosion |
| Control mode | PLC + HMI touchscreen (automatic) | Remote monitoring available |
Detailed Benefits for Your Operation
- Reduce Operating Costs: With MVR technology, you cut steam consumption by 70-80% compared to single-effect or traditional multi-effect evaporators. Electricity consumption is also lower per unit of water removed, resulting in fast payback periods (often 1-2 years).
- Gentle Processing for Heat-Sensitive Materials: Vacuum operation allows evaporation at 40-70°C, preserving product quality in applications like food concentrates, pharmaceutical intermediates, and biochemicals.
- Enhanced Reliability & Easy Maintenance: The tubular design minimizes scaling and fouling, with easy access for inspection and cleaning. All gaskets and seals are made of high-grade materials to withstand repeated thermal cycles.
- Scalability & Customization: We can tailor the evaporator to your specific flow rate, concentration target, heat source, and site conditions. Options include forced circulation, falling film, or hybrid designs.
- Environmental Compliance: By reducing energy consumption and enabling water reuse (distillate quality can be polished to meet discharge or reuse standards), the system helps you meet increasingly stringent environmental regulations.
Why Choose Qingdao Conqinphi? As a company established in 2015 with a factory area of 10,000-30,000 m², we have grown into a global supplier with an annual export value of US$10-50 million. Our 201-300 employees are dedicated to R&D, manufacturing, and after-sales support. We have obtained multiple certifications including ISO9001, ISO14000, OHSAS18001, HACCP, QS9000, SA8000, and others – reflecting our commitment to quality, environmental management, and social responsibility. Our products are exported to over 15 markets including North America, Europe, Southeast Asia, Africa, and the Middle East, and are shipped via Qingdao port. We provide comprehensive technical documentation, on-site commissioning, and training to ensure your system operates at peak performance.
Contact us today to discuss your evaporation needs. Our engineering team can prepare a customized proposal with a detailed energy savings analysis and ROI projection. Trust Qingdao Conqinphi to deliver reliable, energy-efficient solutions for your critical processes.
Frequently Asked Questions
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Q: What is the typical payback period for this MVR tubular evaporator?
A: Payback periods vary with application, but most clients achieve a return on investment within 1.5 to 2.5 years due to significant steam savings. We can provide a detailed payback analysis based on your local energy costs. -
Q: Can the evaporator handle high-salinity or scaling-prone wastewater?
A: Yes, our tubular design and optional forced circulation configuration are well-suited for scaling and fouling conditions. We also offer anti-scaling coatings and automatic CIP systems to maintain long-term performance. -
Q: What is the maximum evaporation capacity you can supply?
A: We have supplied units up to 50 m³/h evaporation capacity for a single train. For larger volumes, multiple units can be paralleled. Capacities above 50 m³/h can be discussed on a project basis. -
Q: Is the system fully automatic, and can it be integrated with our existing DCS?
A: Yes, our standard control system uses a PLC with HMI and supports Modbus, Profibus, or OPC communication protocols. Integration with your distributed control system is straightforward. -
Q: What materials are available for corrosive applications?
A: In addition to 304 and 316L stainless steel, we offer Hastelloy C-276, titanium, and duplex stainless steel for highly corrosive environments such as hydrochloric acid or brine solutions. Please provide your feedstock composition for material recommendation. -
Q: How long is the delivery time?
A: Typical delivery times range from 8 to 16 weeks after order confirmation, depending on capacity and customization. Faster delivery can be arranged for standard models. -
Q: Do you offer after-sales service and technical support?
A: Absolutely. We provide on-site installation supervision, commissioning, and operator training. A two-year warranty is standard, and we have service centers in many countries to ensure quick response. -
Q: Can the vacuum system be omitted if my process does not require low temperature?
A: Yes, the vacuum system can be simplified or removed. However, combining vacuum with MVR offers maximum energy efficiency. We can design a configuration tailored to your temperature and energy targets.
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