Engineered for high performance, energy savings, and compliance with international manufacturing standards.
How Mechanical Vapor Recompression is reshaping industrial thermal processing globally.
In the modern industrial landscape, the dual pressures of environmental compliance and energy cost reduction have forced a paradigm shift in concentration and drying processes. Traditional multi-effect evaporation systems, while historically reliable, are inherently energy-intensive, consuming vast quantities of live steam and generating significant carbon footprints. Mechanical Vapor Recompression (MVR) represents the pinnacle of thermodynamic efficiency, recycling the latent heat of secondary vapor that would otherwise be wasted in cooling towers.
By utilizing a high-efficiency centrifugal compressor or blower, MVR systems compress the low-temperature, low-pressure secondary vapor generated during evaporation. This compression raises both the temperature and pressure of the vapor, allowing it to be reused as the heating medium in the same evaporation effect. The result is a closed-loop thermal cycle that reduces utility steam consumption to near zero, requiring only electrical energy to drive the compressor. For global manufacturers, implementing CE-certified MVR equipment is no longer just an operational upgrade—it is a strategic necessity to align with ESG mandates and strict regional environmental frameworks.
MVR systems consume up to 90% less steam compared to single-effect evaporators and cut operating costs by 50% to 75% compared to traditional multi-effect systems, yielding rapid ROI.
Enables industries to achieve complete water recycling by concentrating industrial wastewater to crystallization limits, recovering pure distillate for process reuse.
Manufactured under strict European Pressure Equipment Directive (PED 2014/68/EU) and ASME Section VIII standards, ensuring maximum operational safety and reliability.
An in-depth look at our core thermal concentration and drying technologies.
Jiangsu Zongheng designs and manufactures custom thermal systems tailored to the specific rheological and chemical properties of the process fluid. Our engineering team utilizes advanced computational fluid dynamics (CFD) and thermodynamic modeling to optimize heat transfer coefficients and prevent fouling.
Specifically engineered for heat-sensitive liquids. The feed liquid is introduced at the top of the heating tubes, forming a uniform, thin film that flows downward under gravity. As it flows, partial evaporation occurs. The co-current vapor flow assists in accelerating the liquid film, minimizing residence time to prevent thermal degradation. Ideal for starch, sugar, and organic chemical concentration.
Designed for highly viscous, scaling, or crystallizing solutions. A high-flow axial pump circulates the liquid through the heat exchanger tubes at high velocities. Boiling is suppressed inside the tubes by maintaining static head pressure; evaporation only occurs when the liquid enters the flash separator. This design prevents tube fouling and ensures continuous, high-uptime operation.
The ultimate energy-saving solution. By compressing the secondary vapor, we recycle the latent heat of vaporization. The system operates with minimal external steam input, primarily utilizing electrical energy for the vapor compressor. This system is widely applied in chemical wastewater treatment, zero liquid discharge (ZLD) projects, and food fermentation processes.
An indirect steam-heated dryer designed for continuous drying of loose materials. The material is dried through contact with a rotating bundle of steam-heated tubes. Operating in a low-oxygen environment, it minimizes dust explosion risks and prevents material oxidation, making it the industry standard for corn germ, fiber, and gluten drying.
Utilizes high-speed, high-temperature air to suspend and fluidize wet materials. The unique impulse tube design features varying diameters to create pressure differentials, causing the particles to tumble and dry uniformly during pneumatic conveying. This flash drying process takes only seconds, preserving product quality.
Precision equipment for the wet milling industry. The degerming mill ensures clean separation of the corn germ from the endosperm without crushing the germ, while our multi-stage starch washing cyclones optimize starch recovery and purity through counter-current washing principles.
| Equipment Type | Primary Application | Energy Source | Key Technical Advantage |
|---|---|---|---|
| MVR Evaporator | Wastewater, Chemical concentration, ZLD | Electricity (Compressor) | Up to 90% reduction in steam consumption; high COP |
| Falling Film Evaporator | Heat-sensitive organics, Starch sugar | Steam / MVR Vapor | Short residence time, high heat transfer coefficient |
| Forced Circulation Evaporator | Crystallizing salts, high-viscosity fluids | Steam / MVR Vapor | High velocity prevents tube fouling and scaling |
| ZXG Tube Bundle Dryer | Corn fiber, Gluten, DDGS, Starch | Indirect Steam | Low-oxygen, safe drying with minimal emissions |
| MQG Airflow Dryer | Starch, Light chemical powders | Hot Air (Steam/Gas heater) | Flash drying in seconds, uniform moisture control |
A trusted manufacturer with global certifications and a proven track record since 1992.
Founded in 1992 as the Yixing Yangxi Light Industry Machinery Factory, Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd. has evolved into a modern high-tech enterprise. We specialize in the design, fabrication, and commissioning of evaporation, concentration, starch processing, and industrial drying equipment. Our facilities are located in Zhoutie Town, Yixing City, along the shores of Taihu Lake, a region renowned for high-end industrial manufacturing.
As an active member of the China Starch and Alcohol Association, our equipment is widely deployed in food fermentation, starch processing, alcohol DDGS recovery, petrochemicals, pharmaceuticals, and environmental protection. We hold the Category III Medium & Low-Pressure Vessel Manufacturing License of China, alongside prestigious international certifications that validate our manufacturing quality on the global stage.
Today, the company spans over 54,000 square meters with a 22,000 square meter modern workshop. We employ 3 senior engineers, over 20 specialized engineers, and a total workforce of 120 dedicated professionals driving thermal innovation.
Obtained international quality system certification (Certificate No.: 45021), establishing a comprehensive quality assurance framework aligned with global standards for pressure vessel fabrication.
Acquired the prestigious ASME "U" Stamp authorization, marking our entry into the high-end international pressure vessel market and enabling us to export to North America and other strict regulatory regions.
Obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42), authorizing the manufacture of high-safety industrial pressure vessels.
Officially recognized as a Jiangsu Provincial High-Tech Enterprise, reflecting our continuous investment in R&D and thermodynamic process optimization.
Took the lead in obtaining ISO9001 Quality Management System Certification, standardizing our design, procurement, and manufacturing workflows.
Established as Yixing Yangxi Light Industrial Machinery Factory, occupying 15 mu of land with 45 pioneering employees dedicated to light industrial machinery.
Ensuring safety, reliability, and seamless integration into European and global industrial grids.
For industrial equipment operating under high pressures and temperatures, compliance is non-negotiable. Our MVR systems and pressure vessels carry full CE Certification, demonstrating conformity with European Union health, safety, and environmental protection standards. This compliance is critical for European installations and is widely respected as a benchmark of quality globally.
Our CE compliance framework covers several key European Directives:
Tailoring thermal solutions to regional industrial needs while pioneering next-generation efficiency.
Industrial requirements vary significantly by region. In Europe, where carbon taxes and energy costs are high, our CE-certified MVR evaporators are primarily deployed for industrial wastewater concentration and Zero Liquid Discharge (ZLD) in chemical and pharmaceutical plants. In North America, our ASME-compliant systems are widely used in the bioethanol industry for concentrating thin stillage into DDGS (Distillers Dried Grains with Solubles). In Southeast Asia, our starch washing cyclones, degerming mills, and airflow dryers are the equipment of choice for large-scale cassava and corn wet milling facilities, optimizing starch recovery under tropical operating conditions.
As we look toward the future of industrial thermal processing, Jiangsu Zongheng is focusing on three core technological pillars:
Expert answers to common technical queries regarding MVR systems and compliance.
Explore our full catalog of high-performance concentration, drying, and milling equipment.
Contact our engineering team today for custom MVR sizing, energy savings calculations, and compliance consulting.
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