FHCS Closed-Circuit Cooling Tower (Single Air Inlet, Compound Flow)

Step into the future of industrial thermal management with our meticulously engineered closed-circuit cooling tower. The moment you inspect the robust exterior, the sleek, metallic sheen of the magnesium-plated aluminum-zinc casing speaks volumes about its rugged durability. Running your hand along the meticulously finished panels, you can feel the industrial-grade craftsmanship designed to withstand the harshest environmental elements without yielding to rust or degradation. When in operation, the system hums with a deep, reassuring resonance—a testament to the precision-balanced axial flow fans and fully enclosed air-cooled motors working in perfect harmony.

This tower is not merely a piece of equipment; it is a comprehensive solution designed to protect your critical processes. By utilizing parallel airflow and water flow, the system effectively eradicates the dreaded "dry spots" at the bottom of the cooling tubes. The flowing fresh air induces rapid evaporative cooling while the spray water initiates direct heat transfer, ensuring the coil surface remains continuously saturated. This dual-action approach dramatically lowers the internal fluid temperature while preserving the pristine condition of the serpentine coils, ultimately safeguarding your operational continuity and slashing long-term maintenance overhead.

SPECIFICATIONS

The spray water falls from the cooling coils onto the PVC packing heat exchange layer, where it is cooled by evaporation and heat conduction (latent and sensible heat) through contact with a second stream of fresh air entering the tower. This process provides secondary cooling of the spray water, further reducing its temperature.

The recirculating water, after secondary cooling, increases the temperature difference between the spray water and the process fluid, thereby increasing the heat exchange efficiency of the cooling coils and reducing the number of coils required. This characteristic further mitigates the tendency for scaling on the coil surfaces, as lower spray water temperatures reduce the likelihood of scale formation. Furthermore, the reduced number of coils lowers the cost of future coil replacements and results in lower maintenance costs.

1--Water baffle

Effectively intercepts water droplets carried in the air, achieving a water drift rate of less than 0.001%. The detachable design facilitates maintenance of the cooler coils.  Made of polyvinyl chloride (PVC), it is corrosion-resistant, aging-resistant, and prevents microbial growth. It is installed above the cooler's water guide plate for easy cleaning.

2--Fan System

It adopts high-efficiency axial flow fans, fully enclosed air-cooled fan motors, corrosion-resistant cast steel multi-groove pulleys, and the fan casing, support frame, and protective net are made of hot-dip galvanized material. The entire fan system exhibits excellent corrosion resistance in high-temperature and high-humidity environments.

3--Water distribution system:

Made of corrosion-resistant rigid polyvinyl chloride (U-PVC), the special structural design allows for inspection and maintenance from outside the equipment without shutting it down. It utilizes large-diameter, 360-degree reinforced snap-on ABS nozzles, significantly reducing the possibility of clogging.

4--Coiled Tubing

The continuously bent, serpentine coil structure reduces the number of welding points, minimizing the possibility of leaks. The inclined design of the coil facilitates the smooth drainage of fluid from inside the tubes. The entire cooler, after welding, can withstand a pressure test of up to 2.5 MPa.

5--Cold Water Basin

The spray pump suction inlet is equipped with a stainless steel filter screen and anti-vortex plate. The cold water basin is designed with a reasonable height, ensuring that the spray pump operates without cavitation while minimizing the water volume.

6--Casing

Made of high-quality magnesium-plated aluminum-zinc steel plate, the coating contains a combination of multiple elements including zinc, aluminum, magnesium, and silicon, providing excellent corrosion resistance. It has a normal service life of over 25 years, and the corrosion resistance of the flat surfaces is 6-8 times that of ordinary aluminum-zinc steel plates. It also possesses unique self-healing properties for the cut edges.

Comprehensive Engineering & Operational Excellence

Our cooling solutions are engineered to address the multifaceted challenges of modern industrial facilities, balancing aggressive thermal loads with stringent operational budgets. We look beyond basic functionality to deliver a system that integrates seamlessly into your broader operational strategy.

• Cooling Efficiency & Anti-scaling: By merging parallel wind and water flows with secondary cooling technology, this unit drastically reduces scaling risks. A minimum flow rate of 6.8 L/s per square meter guarantees the continuous wetness of the coil surface, optimizing heat transfer and meeting the most demanding high-intensity cooling requirements.

• Material & Durability: Designed to conquer corrosive environments, the core utilizes heavy-duty PVC/U-PVC and hot-dip galvanized metals. The revolutionary magnesium-aluminum-zinc casing boasts 6 to 8 times the corrosion resistance of standard panels, thriving in extreme heat and humidity.

• Maintenance & Low Opex: Time is revenue. The detachable baffles, external inspection capabilities of the distribution system, and large-diameter anti-clog nozzles mean your maintenance crew spends less time wrenching and more time monitoring. Fewer welds on the coils translate to fewer leaks and uninterrupted production.

• Customization & Integration: We understand that no two facilities are identical. Our engineering team provides end-to-end integration services, from initial schematic design and 3D/BIM visual demonstrations to precise equipment matching, ensuring seamless assimilation into your existing infrastructure.

• Quality Control & Reliability: Reliability is built into the blueprint. With coils subjected to a punishing 2.5 MPa pressure test and cold water basins equipped with stainless steel filters and anti-vortex plates, the system guarantees cavitation-free pump operation for relentless, stable production.

• Delivery & Project Management: Backed by a seasoned project management team, we ensure precise lead time control. Every phase, from manufacturing to final site delivery, is meticulously tracked to prevent project delays and guarantee flawless execution.

Why Choose Us

Partnering with a dedicated manufacturer means securing a supply chain that prioritizes your operational success. We don't just build equipment; we engineer long-term reliability that protects your bottom line.

• Uncompromising Standards: Every unit that leaves our facility undergoes rigorous diagnostic testing, ensuring that the physical product exceeds the theoretical design specifications.

• Supply Chain Stability: As a direct supplier, we eliminate intermediary bottlenecks, offering you streamlined communication, faster lead times, and transparent project tracking from order placement to final installation.

• Lifecycle Support: From the initial consultation to decade-long operational milestones, our technical support teams provide actionable insights, predictive maintenance guidelines, and rapid component availability.

• Sustainable Engineering: We focus on minimizing water consumption and maximizing electrical efficiency, helping your facility meet stringent environmental regulations without sacrificing cooling power.

FAQ

To assist your procurement and engineering teams in making an informed decision, we have compiled answers to the most critical technical inquiries regarding our cooling tower systems.

How does the compound flow design specifically reduce scaling on the cooling coils?

The compound flow design utilizes parallel airflow and water flow, which ensures a minimum of 6.8 L/s per square meter of spray water is evenly distributed. This continuous deluge prevents "dry spots" from forming on the tube bottoms. Additionally, secondary cooling on the PVC packing lowers the spray water temperature before it hits the coils, further reducing scale precipitation.

Can the water distribution system be serviced without shutting down the entire cooling tower?

Yes. The U-PVC water distribution system features a specialized structural design that permits external inspection and routine maintenance. This allows your facility to maintain continuous operations while technicians verify nozzle performance or clear potential debris.

What makes the casing material superior to standard galvanized steel?

The casing is constructed from a high-quality magnesium-plated aluminum-zinc steel plate. This multi-element coating provides 6 to 8 times the corrosion resistance of ordinary galvanized steel and features unique self-healing properties at cut edges, ensuring a service life of over 25 years even in highly corrosive industrial environments.

How does the cold water basin design protect the spray pump?

The basin is engineered with an optimal height and incorporates a stainless steel filter screen alongside an anti-vortex plate at the suction inlet. This configuration ensures a smooth, uniform flow into the pump, completely eliminating the risk of cavitation while minimizing the total water volume required.

What testing protocols are applied to the serpentine cooling coils prior to dispatch?

To guarantee absolute leak-proof performance under high-stress conditions, the fully assembled and welded serpentine cooling coils are subjected to a rigorous hydrostatic pressure test of up to 2.5 MPa. This ensures the integrity of every single continuous bend and verifies that the minimal welding points are perfectly sealed.