Vapour Fans & Compressors
A commitment toward a sustainable future — Explore our comprehensive range of vapour fans and compressors.
Steam Turbines
We provide high-performance impulse and reaction steam turbines ranging from 50 kW to 20,000 kW. These systems are engineered to maximize thermal energy utilization in industrial cogeneration and mechanical drive applications.
Back-Pressure Turbines
Engineered for processes where exhaust steam is utilized for process heating or downstream thermal demands.
- Multi-stage Efficiency
- Modular Construction
Condensing Turbines
Optimized to maximize electrical power generation from available steam through full condensing operation.
- High Vacuum Operation
- Integrated Lube Oil System
Dedicated to energy efficiency and environmental sustainability, our mission is to deliver products and services that fulfill the demanding needs of modern industry. As global climate challenges intensify, we understand the paramount value of solutions that advance sustainability while substantially reducing operational costs.
Backed by a veteran turbomachinery engineering team and a culture of continuous innovation, we have engineered an advanced portfolio of vapour fans and compressors tailored to diverse industrial processes. These units are built with cutting-edge technology and premium alloys to guarantee optimum performance, peak efficiency, and long-term reliability.
Maxwatt provides the following compression technologies for Mechanical Vapor Recompression (MVR) applications:
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Eliminating the gearbox—the primary consumer of lubricating oil—removes the need for complex forced lube oil systems.
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Substantially lower maintenance expenses—no need to stock costly gearbox bearings, oil baffles, or auxiliary high-capacity pumps.
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A compact, streamlined skid requiring minimal lifecycle maintenance.
Maxwatt proudly presents dedicated centrifugal fans for MVR applications capable of handling vapor flow rates up to 250,000 m³/h.
These heavy-duty centrifugal fans serve as reliable workhorses ideal for low-pressure-ratio MVR applications including Zero Liquid Discharge (ZLD), industrial wastewater treatment, and chemical product concentration. Standardized features and industry-best engineering ensure dependable, highly efficient continuous operation.
Main Components / Design & Construction Features
Volute Casing
Casing Construction
The fan casing is engineered for superior structural stability to withstand operational stresses without distortion or fluid leakage. Priority is placed on ease of assembly, maintenance accessibility, and rapid inspection. Strategically positioned borescope inspection ports facilitate non-intrusive evaluation of the fan impeller.
Casing Design Analysis
The volute casing profile is pivotal for achieving kinetic pressure recovery and minimizing internal thermodynamic losses. All casing geometries undergo rigorous Finite Element Analysis (FEA) to ensure structural integrity, combined with CFD simulations to optimize aerodynamic flow fields.
Material Selection
Materials are rigorously selected based on project-specific environmental conditions. Typical materials include carbon steel, SS304, SS316L, SS316Ti, duplex, and super duplex stainless steels, with all chemistry and mechanical properties validated via laboratory testing.
Fan Impeller
Impeller Construction
Impellers are fabricated using cutting-edge manufacturing processes tailored to flow duty. Lower-flow impellers are produced via 3D metal printing (additive manufacturing), while larger units are precision-machined. Blade profiles feature 2D profiles for large impellers and 3D profiles for compact designs. Blade count, angles, and curvature are engineered to optimize compression efficiency, eliminate flow separation, and minimize turbulence losses through iterative CFD analyses.
Material Selection
Material selection emphasizes high tensile strength, fatigue endurance, and corrosion resistance. Standard alloys include SS304, SS316L, SS316Ti, 17-4 PH precipitation-hardened steel, duplex alloys, and titanium. Rigorous non-destructive testing (NDT), including Ultrasonic Testing (UT) and Dye Penetrant Testing (PT), verifies complete structural integrity.
Stress Analysis
Evaluating stress distribution and localized deflections via Finite Element Analysis (FEA) is standard procedure across all load scenarios. This identifies potential stress concentrations and fatigue limits, ensuring optimal structural margins and safe continuous operation.
Balancing & Rotordynamic Analysis
Following fabrication, each impeller undergoes high-precision dynamic balancing to eliminate unbalance forces and vibration. Comprehensive rotordynamic analysis determines natural frequencies and critical speeds, verifying wide margins from operational RPMs to ensure safe, stable performance.
Gland Seals
Gland seals utilize an advanced floating design with precision carbon rings mounted inside the seal housing. Sealing integrity is enhanced by strategically placed buffer gas/fluid ports using low-pressure steam or treated water, maintaining internal pressure stability and achieving zero external vapor leakage.
Bearings
Heavy-duty anti-friction bearings are lubricated via oil bath or pressurized lube oil circuits. Each skid incorporates a dedicated, self-contained lubrication system. Dual-bearing support within a rigid pedestal ensures maximum dynamic stability, with the overhung impeller mounted securely on the opposite shaft end.
Vibration Monitoring
All units include standard online vibration monitoring sensors and transmitters interfacing directly with the control PLC. Continuous vibration surveillance detects anomalies early, safeguarding capital equipment and preventing unscheduled downtime.
Electric Motor
Units typically feature a direct-drive configuration where the motor couples directly to the fan shaft. For applications requiring elevated speeds, an integral speed-increasing gearbox can be integrated. Motor voltages, frequencies, and enclosures are fully customized to site electrical standards.
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