Mixed Flow Closed Type Cooling Tower

Overview of Mixed-Flow Closed Type Cooling Tower

   Mach Cooling’s mixed-flow closed type cooling towers, part of the AHCF-S series, are energy-efficient cooling solutions designed for industrial, commercial, and HVAC applications. With a lifespan of 15-20 years with proper maintenance, these towers use a closed circulation system to prevent direct contact between the cooling medium and external air, reducing water loss and contamination. Ideal for metallurgy, power, chemical, and food processing industries, they offer low noise, high efficiency, and minimal maintenance. Compare with our square counterflow cooling towers for alternative configurations.

Operating Principle of Mixed-Flow Closed Type Cooling Tower

The mixed-flow closed type cooling tower uses a closed circuit and mixed-flow design for efficient heat exchange: The cooling medium (typically water) is sprayed onto the fill material, forming a thin water film within a closed system. Hot air enters from the bottom and flows both upward and horizontally across the fill, driven by fans, maximizing contact area and time. Heat is transferred through evaporation and sensible heat exchange, cooling the medium, which is then recirculated without exposure to external air.

Key Features of Mixed-Flow Closed Type Cooling Tower

• Efficient Cooling

  Mixed-flow design ensures rapid and effective heat transfer for stable cooling performance.

• Water-Saving and Energy-Saving

  Closed circulation system minimizes evaporation and splash losses, reducing water replenishment needs.

• Stable Operation

  Soft water closed circulation prevents scaling, protecting equipment and extending service life.

• Environmental Protection

  Closed system prevents contamination of the cooling medium, with low evaporation rates reducing environmental impact.

• Easy Maintenance

  Closed system reduces scaling and corrosion, lowering maintenance workload and costs.

• Intelligent Control

  Frequency-controlled fans and pumps dynamically adjust to cooling demand, optimizing energy efficiency.

• Low Noise Design

  Frequency-controlled components and optimized design keep noise levels below 60 dB(A), ideal for noise-sensitive environments.

Main Components of Mixed-Flow Closed Type Cooling Tower

	Cooler Stainless steel coil (upgradable to red copper) offers corrosion resistance, freeze and pressure resistance, and high heat dissipation efficiency with low maintenance.
Fan and Drive Assembly Low-speed aluminum alloy fan with gear reducer ensures noise levels below 60 dB(A). Supports multi-speed motors (Siemens/WEG compatible) for up to 50% energy savings.
	Spray Pump High-efficiency JIS-C410 compliant pump with large flow, low head, anti-clogging design, and low power consumption for reliable, quiet operation.
Customized Services Options include circulating water pumps, control cabinet systems, water tanks, stainless steel housing/frames (304/316L), dual-speed or variable frequency motors, and anti-freeze heaters.

Technical Parameters of Mixed-Flow Closed Type Cooling Tower

Installation Guidelines for Mixed-Flow Closed Type Cooling Tower

• Select a well-ventilated site free from heat sources, dust, or obstructions for optimal airflow.

• Verify the site’s load-bearing capacity to support the tower’s weight.

• Ensure foundation construction aligns with supplier specifications, with a maximum elevation error of ±5mm.

• Maintain adequate spacing between towers or buildings to ensure proper air intake.

• Avoid open flames or welding near the tower; take precautions if necessary.

• Before operation, confirm secure connections, lubricate components, and check wiring.

• Assign professional operators for regular inspections and maintenance logging.

Applications of Mixed-Flow Closed Type Cooling Tower

• Metallurgical Industry

  Cools equipment during smelting and forging for operational stability.

• Power Industry

  Supports cooling for power plants to enhance turbine performance.

• Chemical Industry

  Manages heat in chemical processes to ensure safety and efficiency.

• Food Processing

  Cools equipment during production for consistent quality and efficiency.

• Petroleum and Plastics

  Provides reliable cooling for processing equipment in high-temperature environments.

Maintenance Precautions for Mixed-Flow Closed Type Cooling Tower

• Equipment Maintenance

  Regularly clean dust, debris, and scale from the tower body, fill, and spray system to maintain efficiency.

• Water Quality Management

  Use treated soft water in the closed system to prevent scaling and corrosion in the coil and components.

• Fan and Pump Maintenance

  Inspect fan and pump operation for noise or vibration, lubricate components, and ensure proper alignment.

Frequently Asked Questions

What is the main material of the mixed-flow closed type cooling tower?

The tower uses stainless steel coils (upgradable to red copper) and corrosion-resistant FRP or steel frames, with PVC fill for efficient heat exchange.

How long does it take to install a mixed-flow closed type cooling tower?

Installation takes 2-5 days, depending on model size and site conditions, with detailed guidance from Mach Cooling.

Is the maintenance cost of the cooling tower high?

Maintenance costs are low due to the closed system’s resistance to scaling and corrosion, with regular cleaning minimizing expenses.

Is the noise of the cooling tower loud?

Noise levels are low (below 60 dB(A)) due to frequency-controlled fans and pumps and optimized design, suitable for noise-sensitive environments.

What is the cooling effect of the mixed-flow closed type cooling tower?

The cooling effect depends on water volume, inlet/outlet temperatures, and ambient conditions, with customized models ensuring optimal performance.

Can the cooling tower be customized?

Yes, Mach Cooling offers customization of size, cooling capacity, materials, and control systems to meet specific industrial needs.

What is the lifespan of the mixed-flow closed type cooling tower?

With proper maintenance, the lifespan is typically 15-20 years, thanks to durable stainless steel and FRP components.

What is the operating cost of the cooling tower?

Operating costs are low due to energy-efficient fans, pumps, and intelligent control systems, with minimal water and maintenance needs.

What after-sales services are provided?

Mach Cooling offers comprehensive after-sales support, including technical consultation, installation guidance, maintenance training, and spare parts supply.