Square Counterflow Cooling Tower

Square Counterflow Cooling Tower

Product Performance and Selection Guidelines

1.  Design Parameters:

       Industrial Tower: Standard operating condition based on an air wet-bulb temperature (WBT) of 28°C. Designed cooling range (temperature drop): 10–25°C.

       Civil/Commercial Tower: Standard operating condition based on a WBT of 28°C. Designed cooling range: 5–8°C.

2.  Essential Data for Selection: To select the appropriate model, the following information is required:

       Cooling water flow rate (Q)

       Inlet water temperature (t₁)

       Outlet water temperature (t₂)

       Local design air wet-bulb temperature (τ)

3.  Low-Temperature Operation: The tower materials can withstand ambient temperatures as low as -50°C. However, for locations where the average temperature of the coldest month is below -10°C, this must be specified at the time of order to facilitate the inclusion of anti-icing measures.

4.  Water Quality Requirements: The turbidity of the circulating water should generally not exceed 50 mg/L (with short-term peaks ≤ 100 mg/L). The water must be free of oil and mechanical impurities. Algae control and water stabilization treatments should be implemented if necessary.

5.  Pipe Orientation Flexibility: The inlet and outlet water pipe connections can be rotated to 90°, 180°, or 270° orientations to suit site piping layouts.

6.  Water Distribution System: The system is designed for the nominal water flow. If the actual operating flow rate deviates by more than ±15% from the nominal value, this must be stated when ordering to allow for design modifications.

7.  Maximum Inlet Water Temperature: The standard design accommodates an inlet water temperature not exceeding 60°C. For applications with higher inlet temperatures, this must be specified during ordering.

8.  Fan Adjustment: The fan blade pitch is adjustable but must be set uniformly across all blades. The motor operating current must not exceed its rated current.

9.  De-icing Feature: The fan can be operated in short-duration, low-speed reverse rotation to help remove ice accumulation.

10. Basin Piping (When Used as a Sump): If the cooling tower basin is to function as a water collection sump, the following separate piping connections must be installed: "Auto Make-up Water Pipe," "Fast Fill Pipe," "Drain Pipe," and "Overflow Pipe." This requirement must be explicitly stated when ordering, and associated costs will be calculated separately.

11. Motor and Fan Supply: Motors and fans are supplied as complete sets. The factory can dispatch personnel to the site for installation or provide technical guidance.

Structural Features

1.  Fill Media: Utilizes a patented, slanted trapezoidal corrugated PVC fill sheet with horizontal ribs. Features excellent water redistribution, low air-side pressure drop, superior thermal performance, high-temperature resistance (up to 70°C), low-temperature resistance (down to -50°C), and good flame retardancy.

2.  Motor: A variable-torque, low-noise, energy-saving motor, jointly designed with Tsinghua University's Electrical Engineering Department. It offers excellent sealing, waterproof performance, high-temperature tolerance, high efficiency, and low operating noise.

3.  Drive System:

       For units with power ≤ 11/5.5 kW: Utilizes polyester-reinforced neoprene timing belts. Resistant to high temperatures, highly efficient, non-stretching when wet, eliminates slippage, and operates quietly.

       For units with power ≥ 15/7.5 kW: Employs a geared reducer with the motor mounted outside the air discharge plenum.

4.  Fan: Features low-noise, high-efficiency, airfoil-shaped FRP blades designed by Tsinghua University's Engineering Mechanics Department specifically for this product series. Blade pitch is adjustable.

5.  Water Distribution & Collection System: Employs reflective low-pressure spray nozzles (single-spiral nozzles for smaller towers), ensuring uniform water distribution at low pressure. The collection system minimizes drift loss to as low as 0.01%.

6.  Noise Abatement (Air Intake/Discharge): Ultra-low-noise models are equipped with sound-absorbing materials and acoustic louvres at the air discharge outlet to maximize noise reduction.

7.  Motor/Fan Noise Control: Ultra-low-noise models incorporate sound-absorbing materials and grids. Smaller towers may feature a mushroom-shaped acoustic shield.

8.  Drip Noise Reduction: Low-noise and ultra-low-noise models include a specially designed, sound-permeable acoustic drip pad installed above a slanted wave tray, significantly reducing water droplet impact noise.

9.  Maintenance Platform: The tower top is fitted with a checkered steel plate maintenance platform for safe and convenient access.

10. Basin: Available in shallow or deep basin configurations for water storage. Can be equipped with overflow, drain, and manual/auto make-up connections as per order requirements, allowing for direct suction from the basin.

11. Support Structure: The steel support framework is hot-dip galvanized and coated with epoxy asphalt paint for corrosion protection. All fasteners are galvanized bolts.

We are a professional electric furnace manufacturer. For further inquiries, or if you require submerged arc furnaces, electric arc furnaces, ladle refining furnaces, or other melting equipment, please do not hesitate to contact us at  susan@aeaxa.com