Cooling Tower
Heat Exchangers
1. Product Overview
A cooling tower is a device that uses water-to-air contact and evaporative cooling to reduce water temperature. It consists of a tower structure, fill media, water distribution system, fan, drift eliminators, and a cold water basin. Widely used in: power plant circulating water cooling, chemical process water cooling, central air conditioning refrigeration systems, and metallurgical blast furnace water cooling. Features: high heat exchange efficiency, energy-saving (VFD available), stable operation, and wide applicable temperature difference range.
2. Working Principle
Hot water is evenly sprayed over the fill media via the distribution system, forming a water film; the fan draws air from bottom to top (counterflow) or horizontally (crossflow) through the fill layer, where water and air fully contact for sensible heat exchange and evaporative cooling; the cooled water falls into the collection basin and is pumped back to the system; the warm, moist air passes through the drift eliminators to separate water droplets before being discharged.
3. System Classification
By Ventilation Method:
Counterflow Cooling Tower: Air flows up, water falls down, highest heat exchange efficiency / Space-constrained industrial applications
Crossflow Cooling Tower: Air enters horizontally, water falls down, low pressure drop, easy maintenance / High water flow, low noise requirement applications
Closed Circuit Cooling Tower: Process fluid inside tubes, spray water evaporative cooling outside, fluid isolated from outside / High purity water/oil cooling, anti-pollution applications
4. Detailed Technical Parameters
4.1 Common Materials
| Material | Applicable Components | Remarks |
|---|---|---|
| FRP (Fiberglass) | Tower casing, fan blades | Anti-corrosion, lightweight, long life, most common |
| Galvanized Steel/Stainless Steel | Structural parts, framework | High structural strength |
| PVC/PP | Fill media | Corrosion-resistant, flame retardant (optional), good hydrophilicity |
| Copper/SS/Titanium | Closed circuit coils | For closed towers; titanium for strong corrosion/seawater |
4.2 Typical Specification Table
| Cooling Capacity (m³/h) | Temp. Difference (In/Out) (℃) | Wet Bulb Temp (℃) | Fan Diameter | Motor Power |
|---|---|---|---|---|
| 10～100 | 5～20 | 27～29 | Φ1500～Φ3500 | 1.5～15kW |
| 100～500 | 5～25 | 27～29 | Φ3500～Φ7000 | 15～75kW |
| 500～3000 | 5～25 | 27～29 | Φ7000～Φ10000 | 75～250kW |
4.3 Design Conditions & Performance
| Parameter | Specification |
|---|---|
| Design Dry Bulb Temp | Based on local meteorological data (typical 30～40℃) |
| Design Wet Bulb Temp | According to local meteorological data (typical 25～29℃) |
| Drift Loss | ≤0.001% (High-efficiency drift eliminators) |
| Noise Level | Standard/Low noise/Ultra-low noise (with sound blankets/attenuators) |
5. Electrical Parameters
| Region | Voltage | Frequency |
|---|---|---|
| China/Russia/Central Asia | 380V | 50Hz |
| Middle East/Southeast Asia/Africa | 400V / 415V | 50Hz |
| South Korea | 380V | 60Hz |
| Americas (if required) | 440V / 480V | 60Hz |
| Note: Fan motor voltage and frequency must be specified; control requirements for dual-speed/VFD motors must be clarified. |
6. Core Component Selection
| Component | Brand/Material | Features & Applications |
|---|---|---|
| Fan | Mingxin/Mingying/Custom | Aviation-grade aluminum/FRP, wide blades, low noise, high volume |
| Fill Media | Custom matched | PVC cross-flute / spot-wave fill, hydrophilic modified, long service life |
| Drift Eliminator | Custom processing | PVC/FRP multi-wave type, extreme drift interception |
| Motor | National standard/Siemens/ABB | IP55 protection, outdoor moisture-proof, explosion-proof optional |
7. Typical Application Fields
Power Industry: Steam turbine condenser circulating water cooling
Chemical Industry: Reactor, compressor water cooling systems
HVAC: Chiller cooling water systems
Metallurgical Industry: Blast furnace, continuous casting cooling water systems
8. Design Standards & Certifications
| Standard | Description |
|---|---|
| GB 7190-2019 | Fiber reinforced plastic cooling towers |
| CTI 201 | Cooling Tower Performance Certification (CTI, USA) |
| ISO 9001:2015 | Quality Management System |
| CE / EAC / GOST-R | Available upon request for international orders |
9. Custom Optional Configurations
| Option | Details |
|---|---|
| Tower Material | FRP / Galvanized steel / 304 SS / 316L SS |
| Fill Type | PVC (normal temp) / PP (high temp >55℃) / SS (special) |
| Fan Drive | Direct drive / Belt drive / Gearbox drive |
| Anti-freeze Config | Electric tracing / Steam ice-melting pipes / Louvers (for frigid zones) |
10. Warranty Terms
| Equipment Status | Warranty Period | Warranty Scope |
|---|---|---|
| Brand New | 12 months | Tower structure, fan system, water distribution system |
| Refurbished | 6 months | Tower structure, fan system, water distribution system |
| Idle | 3 months | Main functional components |
11. Packaging & Delivery
| Item | Packaging Method |
|---|---|
| FRP Casing / Fan Stack | Nude packaging or bubble wrap protection |
| Fill Media | Cartons or compressed bales |
| Fan / Motor / Electrical | Fully enclosed wooden cases |
| Small towers shipped intact; large towers shipped in parts for on-site assembly. On-site guidance available. |
12. Information Required for Inquiry
12. Information Required for Inquiry Cooling water flow rate (m³/h), inlet/outlet water temperature, local design wet bulb temperature; circulating water quality (turbidity, hardness); on-site installation space limits; special requirements for noise/drift loss; need for anti-freeze design; equipment status preference (new/refurbished/idle); delivery terms (FOB/CIF/DDP); destination port.