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Qingdao Conqinphi Environmental Technology Group Co., Ltd. proudly presents our Forced Circulation MVR Evaporator with 316L Stainless Steel and Automatic PLC Control. Designed for efficient and reliable concentration of industrial liquids, this evaporator achieves an evaporation capacity of 500 L/h while significantly reducing energy consumption through mechanical vapor recompression technology. Our factory, established in 2015, spans 10,000–30,000 square meters and employs 201–300 skilled workers, ensuring rigorous quality control and consistent product performance. Whether you are treating wastewater, recovering valuable chemicals, or concentrating food products, this evaporator delivers exceptional uptime and operational simplicity.
Below we detail the key features, technical specifications, and benefits of this forced circulation MVR evaporator.
Key Features & Advantages
- 316L Stainless Steel Construction – Excellent corrosion resistance against chlorides, acids, and alkalis, ideal for aggressive chemical environments. Extends equipment lifespan and reduces maintenance frequency.
- Forced Circulation Design – Ensures high heat transfer coefficients and prevents scaling or fouling on heat exchanger surfaces. Suitable for viscous, high-concentration, or crystallizing solutions.
- Automatic PLC Control System – Full automation with touch-screen interface, real-time monitoring of temperature, pressure, flow rate, and liquid level. One-button start/stop, fault diagnosis, and history recording reduce labor costs and human error.
- MVR (Mechanical Vapor Recompression) Technology – Compresses secondary steam to raise its temperature and pressure, then reuses it as heating steam. Energy savings of up to 60%–80% compared to traditional multi-effect evaporators. No need for external steam supply in many cases.
- Compact Footprint & Modular Design – Factory-assembled and tested, easy to install on site. Optional skid-mounted packages for quick deployment.
- Low Operating Temperature – Evaporation occurs under vacuum, allowing heat-sensitive materials to be processed without degradation.
Technical Specifications
| Parameter | Value |
| Evaporation Capacity | 500 L/h |
| Material of Construction | 316L Stainless Steel (process contact parts) |
| Control Mode | Automatic PLC with touch screen |
| Circulation Type | Forced circulation (axial flow pump) |
| Compressor Type | Centrifugal or Roots blower (optional) |
| Operating Vacuum | -0.02 ~ -0.09 MPa (adjustable) |
| Steam Consumption | Minimal (only for preheating or startup) |
| Power Supply | 380V / 50Hz, 3-phase (customizable) |
| System Noise | ≤85 dB(A) at 1 meter |
Detailed Description
The Forced Circulation MVR Evaporator operates on the principle of mechanical vapor recompression. Feed liquid enters the circulation loop and is heated by a heat exchanger. The forced circulation pump ensures high velocity across the tube bundle, minimizing fouling. Vapor generated in the separator is drawn into a compressor, where its pressure and temperature are elevated. This compressed vapor then condenses inside the heat exchanger, releasing latent heat to the incoming liquid. The condensate is collected as distilled water (if applicable) or recycled.
- Energy Efficiency: Because the latent heat of vaporization is recovered and reused, the system consumes only about 30–50 kWh per ton of water evaporated, depending on the boiling point elevation. This is dramatically lower than conventional evaporators.
- Wide Application: Suitable for industrial wastewater treatment (e.g., pharmaceutical, chemical, textile, electroplating), food concentration (e.g., milk, juice, sugar syrups), and chemical solution concentration (e.g., sodium chloride, sodium sulfate, ammonium chloride).
- Easy Maintenance: The 316L stainless steel construction resists pitting and crevice corrosion. The PLC system logs operating data and alerts operators for scheduled cleaning or part replacement.
- Safety & Compliance: Equipped with multiple safety interlocks – high pressure alarm, over-temperature shutdown, leak detection, and emergency stop. Our manufacturing process is compliant with ISO9001:2015 quality management standards.
Trust & Assurance from Qingdao Conqinphi
As a leading manufacturer with an annual export value of US$10–50 million, we have supplied MVR evaporators to markets across North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our dedicated R&D team continually refines our designs to meet evolving customer needs. We hold multiple certifications including ISO9001, ISO14000, OHSAS18001, HACCP, and SA8000 – a testament to our commitment to quality, environment, health, and social responsibility. Our factory in Qingdao, Shandong, offers convenient port access for global shipping. With over 8 years of experience since 2015, we provide complete after-sales support, including installation guidance, commissioning, and training. Contact us today to discuss your specific evaporation requirements and discover how our MVR evaporator can reduce your operating costs and environmental footprint.
Frequently Asked Questions (FAQ)
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Q: What is the difference between forced circulation and natural circulation MVR evaporators?
A: Forced circulation uses a pump to maintain high liquid velocity across the heat exchanger, preventing scaling and fouling even with high-viscosity or crystallizing solutions. Natural circulation relies on density differences and is less effective for difficult feeds. -
Q: Can the evaporator handle liquids with suspended solids?
A: Yes, the 316L stainless steel tubes and robust pump design can handle moderate solids (up to 5–10% by weight). For higher solid content, a pre-filtration step or specific tube geometry may be recommended. -
Q: What is the typical payback period for an MVR evaporator compared to a multi-effect evaporator?
A: Depending on local energy costs and operating hours, the payback period usually ranges from 6 months to 2 years due to drastically reduced steam consumption. -
Q: Do you provide customized sizes or capacities?
A: Absolutely. While 500 L/h is a standard model, we can design and manufacture forced circulation MVR evaporators with capacities from 100 L/h to 50,000 L/h. Contact our sales team with your specific parameters. -
Q: Is the PLC control system compatible with remote monitoring?
A: Yes, our control system supports Modbus TCP/IP or optional Ethernet connectivity, allowing integration with your SCADA or MES systems for remote access and data logging. -
Q: What certifications does your company hold for quality and environmental management?
A: We are certified under ISO9001, ISO14000, OHSAS18001, HACCP, SA8000, and several other international standards. Our products are manufactured in accordance with these rigorous management systems. -
Q: How long does it take to deliver the evaporator?
A: Typical lead time is 30–45 working days after order confirmation, depending on the complexity and customization. We offer fast-track options for standard models. -
Q: What after-sales service do you provide?
A: We offer 12-month warranty, spare parts supply, remote technical support, and on-site troubleshooting. Our team in Qingdao is available for video calls and email assistance globally.
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