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In modern energy-intensive processing, industrial steam recovery is no longer just an environmental initiative—it is a critical imperative for economic viability. An Exhaust Steam Booster Fan (also designated as a steam compressor or recompressor) is designed specifically to capture low-pressure waste steam, boost its pressure and saturated temperature through mechanical work, and return it directly back into industrial evaporation, concentration, or distillation workflows.
By choosing a cost-efficient supplier who understands the complex thermodynamics of Mechanical Vapor Recompression (MVR), industrial operators can secure hardware that reduces their primary boiler demands by up to 60%. This whitepaper outlines the mechanical engineering, global applications, and technical standards supporting high-performance steam compression systems.
Choosing the correct equipment architecture is crucial to achieving process stability, lowering energy costs, and maximizing lifespan.
| Performance Metrics | Roots-Type Exhaust Steam Booster Fan | Centrifugal-Type Exhaust Steam Booster Fan |
|---|---|---|
| Operating Range | Lower flow rates (10 - 250 m³/min), High single-stage pressure ratio. | High flow rates (200 - 2500 m³/min), Moderate single-stage pressure ratio. |
| Saturated Temperature Rise | 8°C to 20°C per stage (Ideal for high pressure boost requirements). | 6°C to 12°C per stage (Optimized for large volumetric capacity). |
| Rotational Speed & Noise | Low to medium speed (1000 - 2200 RPM), highly reliable mechanical seals. | High speed (6000 - 25000 RPM), utilizing PMSM direct-drive or gears. |
| Water Injection Tolerance | High tolerance for wet steam/liquid carryover, aiding desuperheating. | Requires strict control; excessive liquid droplets damage impeller blades. |
| Optimal Application | Small to medium MVR systems, chemical concentrations, wastewater recovery. | Large-scale chemical manufacturing, multi-effect evaporation plants. |
Exhaust Steam Booster Fans operate across multiple high-demand industrial sectors, delivering system optimization and compliance globally.
In wastewater treatment, our steam boosters act as the mechanical core of MVR evaporators. By boiling wastewater and compressing the vapor, industrial plants achieve zero discharge while recycling clean distillate back into process cycles.
Managing salt extraction and product concentration requires steady vapor recompression. Our Roots and Centrifugal steam booster units are coated with anti-corrosive linings (such as Teflon or titanium alloys) to handle harsh chemical vapors.
Evaporative distillation for starch, sugar, dairy, and active pharmaceutical ingredients (APIs). Our completely oil-free blower chambers ensure zero contamination of process steam, preserving product purity.
Shandong Zhangqiu Blower Co., Ltd. (formerly name: Shandong Zhangqiu Blower Works) is a veteran company with over 50 years' blower design and manufacturing experience. We set up two Sino-Japanese Joint-ventures and one USA branch, making us the first company in the Chinese blower industry to establish an overseas branch. We are the leading enterprise in the Zhangqiu local industry and our main product, the Roots Blower, leads the domestic market occupancy.
In 2005, the company relocated to a newly built, high-standard modern industrial park spanning 430,000 m², offering state-of-the-art manufacturing facilities. On July 7th, 2011, the company was officially listed on the Shenzhen Stock Exchange (Stock Code: 002598).
"Develop main business, pioneer new fields and innovate, cooperate to be a great company." – Operating Income: 1.5 Billion Yuan (2020).
Providing custom industrial blowers, slurry pumps, and chemical vapor compressors globally with verified engineering capabilities.
We are the executive director of the China General Machinery Industry Association and the vice president unit of the fan branch. We are the primary drafting unit of national standards for Roots Blowers, ensuring that our products meet strict quality benchmarks.
Our scientific research team includes experts receiving special government allowances, postgraduate workstation support, and doctoral specialists. We collaborate with Tsinghua University and Xi'an Jiaotong University to drive technical R&D.
Equipped with nearly 100 sets of advanced processing machinery, including five-axis machining centers and CNC tools imported from Japan and Germany. We utilize PLM, CAM, CAPP, and CAT systems to shorten design-to-build lead times.
ZCBC holds multiple proprietary technologies, including countercurrent cooling, noise reduction, and special sealing designs.
We have passed ISO9001 quality system certification, ISO14001 environmental management system certification, ISO50001 energy management system certification, and ISO10012 measurement management system certification. Our products comply with European CE standards, Chinese 3C requirements, and coal mine safety regulations.
Embracing the shift toward carbon neutrality through continuous investment in next-generation blower technologies.
We are integrating direct-drive PMSM systems into our centrifugal and Roots booster fans. This eliminates gearbox energy loss and reduces the total footprint of MVR units.
Our active research in magnetic suspension eliminates oil lubrication completely. This ensures zero risk of oil leaks, making it suitable for clean steam compression in pharmaceutical processes.
Future steam booster packages will feature integrated vibration and temperature telemetry, allowing operators to monitor system health and schedule maintenance proactively.
Corporate culture is the soul of a large enterprise and a reflection of its management level. The successful construction of our corporate culture shows in our employees' mental outlook, work enthusiasm, and collaborative atmosphere. Zhanggu Company respects the value of people, helps individuals realize their potential, and fosters team alignment under unified corporate goals.
Since the new leadership team with Chairman Fang Rungang as the core took office in 1997, our strategy has focused on expanding the core business, pursuing new innovations, and developing international joint ventures. Our design and R&D teams ensure product quality and reliable after-sales service.
We respect knowledge and recruit specialized talents as part of our strategy for long-term growth. Our design team can provide 3D CAD drawings within 24 hours based on customer specifications, simplifying the engineering confirmation process.
Technical answers regarding industrial steam compression, system integration, and purchasing requirements.
It captures waste steam that would otherwise be condensed or vented, compressing it to increase its temperature and pressure. This recycled steam is then returned to the process, minimizing the boiler load needed to generate new steam.
For steam containing corrosive gases or chemical particulates, we recommend impellers and casings made from Duplex Stainless Steel (e.g., 2205 or 2507) or titanium alloys, occasionally reinforced with Teflon coatings.
We use specialized sealing arrangements, including multi-stage labyrinth seals, carbon ring seals, and double mechanical seals with water or steam purging, to isolate the steam chamber from the oil system and prevent environmental leakage.
Roots-type steam boosters are generally tolerant of wet steam and small liquid carryovers, which can help desuperheat the compressed vapor. Centrifugal steam boosters, however, require moisture separators to protect the high-speed impellers from erosion.
Our centralized manufacturing facilities in China, combined with automated CNC production and 50+ years of engineering experience, allow us to offer competitive pricing without compromising on industrial quality, longevity, or efficiency.
Yes. Our team can provide 3D CAD models and system schematics within 24 hours of receiving draft requirements, facilitating integration with MVR and chemical process lines globally.
To better support international clients, ZCBC operates a dedicated foreign trade division and a branch in the United States. Our industrial blowers and pump systems are exported to over 70 countries, including the United States, Germany, and Italy.
We continue to expand our three main business areas: intelligent manufacturing, environmental water treatment, and the application of new materials, providing energy-efficient equipment solutions worldwide.
Get a Custom Design QuoteSubmit your flow rate, required pressure rise, and operating temperature. Our engineering team will review the details and provide a preliminary recommendation.
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