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As a leading manufacturer from Qingdao Conqinphi Environmental Technology Group Co., Ltd., we are proud to present our 304 Stainless Steel Double-effect Falling Film Evaporator equipped with advanced PLC control and designed for 380V power supply. Since our establishment in 2015, we have built a 10,000–30,000 m² factory and achieved annual export values of US$10–50 million, serving clients across North America, Europe, Asia, and beyond. This evaporator embodies our commitment to efficient, reliable, and energy-saving evaporation solutions for the chemical, pharmaceutical, food, and environmental industries.
Our double-effect falling film evaporator utilizes a two-stage evaporation process that maximizes heat recovery and reduces energy consumption by up to 40% compared to single-effect units. The entire system is constructed from 304 stainless steel to ensure corrosion resistance, hygiene, and long service life. The integrated PLC control system provides precise automation of temperature, pressure, flow rate, and liquid level, allowing operators to monitor and adjust parameters in real time via a touch-screen interface. Designed for 380V three-phase power, this evaporator is suitable for continuous industrial operations.
Key Features & Technical Specifications
- Double-effect design – Two falling film evaporators in series; vapor from the first effect heats the second effect, reducing steam consumption.
- 304 stainless steel construction – All wetted parts are made of high-quality 304 SS, resistant to acidic and alkaline solutions.
- PLC control system – Programmable Logic Controller with HMI touch screen; supports automatic start/stop, alarm, and data logging.
- 380V/3-phase power – Standard industrial voltage; compatible with most factory electrical systems.
- Falling film technology – Liquid flows as a thin film down the inside of heated tubes, ensuring high heat transfer coefficients and short residence time.
- Low operating temperature – Suitable for heat-sensitive materials; evaporation occurs at reduced temperatures under vacuum.
- Easy maintenance – Modular design with quick-access sight glasses and cleaning ports.
- Customizable capacity – Available in various evaporation rates (e.g., 50 L/h to 5000 L/h) and configurations.
| Parameter | Specification |
|---|---|
| Material | 304 Stainless Steel |
| Number of Effects | 2 (Double-effect) |
| Control System | PLC with HMI touch screen |
| Power Supply | 380V, 3-phase, 50/60Hz |
| Evaporation Capacity | Customizable (e.g., 100–2000 L/h) |
| Operating Temperature | 40–100°C (adjustable) |
| Vacuum Degree | -0.08 to -0.095 MPa (optional) |
| Steam Consumption | Approximately 0.5 kg steam per kg water evaporated (double-effect) |
Why Choose Our Double-effect Falling Film Evaporator?
- Energy savings – The double-effect design recovers latent heat, significantly lowering operating costs.
- High product quality – Short residence time at low temperature preserves the integrity of heat-sensitive ingredients.
- Automation & accuracy – PLC control ensures consistent process conditions, reducing human error and labor requirements.
- Robust sanitation – 304 stainless steel with smooth surfaces meets food-grade and pharmaceutical hygiene standards.
- Scalability – We offer customized solutions from pilot to full production scale, with flexible layout options.
At Qingdao Conqinphi Environmental Technology Group, we leverage our 10,000–30,000 m² manufacturing facility and a team of 201–300 skilled employees to deliver high-quality evaporation equipment. Our products are exported to over 15 regions worldwide, including North America, Europe, Southeast Asia, and the Middle East, with an annual export value of US$10–50 million. We have implemented strict quality management systems (ISO9001, ISO14000) and are committed to continuous improvement. Every evaporator undergoes rigorous testing before shipment from Qingdao port.
We understand that each application is unique. Our engineers work closely with you to design the optimal configuration, including optional features such as CIP (clean-in-place) systems, vacuum pumps, and remote monitoring. Whether you need to concentrate fruit juice, recover solvents, or treat wastewater, this double-effect falling film evaporator offers a reliable, cost-effective solution.
Trusted by global clients – With decades of experience (since 2015), a large factory, and a professional team, Qingdao Conqinphi is your reliable partner. Contact us today for a detailed quotation or to discuss your specific requirements. We provide prompt after-sales support and spare parts availability.
Frequently Asked Questions
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Q: What is the difference between single-effect and double-effect falling film evaporators?
A: A double-effect evaporator uses the vapor from the first effect as the heating medium for the second effect, reducing steam consumption by approximately 40–50% compared to a single-effect unit. It is more energy-efficient but requires a higher initial investment. -
Q: Can this evaporator handle corrosive liquids?
A: Yes, the 304 stainless steel construction provides good resistance to many acidic and alkaline solutions. For highly corrosive media, we can offer 316L stainless steel or other alloys upon request. -
Q: Is the PLC control system easy to operate?
A: Absolutely. The HMI touch screen displays a user-friendly interface with intuitive menus. Operators can set parameters, view real-time data, and receive alarms. Training is provided, and we can also offer remote support. -
Q: What is the typical lead time for this evaporator?
A: Standard lead time ranges from 30 to 60 days, depending on the complexity and customization. We can expedite for urgent orders upon request. -
Q: Do you provide installation and commissioning services?
A: Yes, we offer on-site installation guidance and commissioning support. Our technical team can also be dispatched for larger projects. Alternatively, we provide detailed manuals and video tutorials. -
Q: Can the evaporator be used for food products like milk or juice?
A: Yes, the 304 stainless steel design and smooth surface finish meet food industry hygiene requirements. The falling film technology is widely used for concentrating dairy, fruit juices, and other heat-sensitive beverages. -
Q: What warranties do you offer?
A: We provide a standard 12-month warranty from the date of shipment, covering manufacturing defects. Extended warranty options are available. Please contact our sales team for details. -
Q: How do I determine the required evaporation capacity for my application?
A: Our engineers will help you calculate based on your feed flow rate, initial concentration, and desired final concentration. Provide us with your process parameters, and we will recommend the optimal size.
Note: Specifications are subject to change without notice. For accurate technical data, please request a formal proposal.
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