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Manufacturer of Turbine Components

Manufactures various types of steam turbines ranging from 5MW - 50MW,including condensing, backpressure, and extraction-condensing designs

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Square Counterflow Cooling Tower

A multistage centrifugal pump achieves high-pressure delivery by connecting multiple impellers in series.

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Heat Exchangers and Pressure Vessels

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Product Introduction

The square counterflow cooling tower is an industrial water cooling device where water flows vertically downward and comes into countercurrent contact with upward airflow, achieving cooling through heat exchange.

This unit employs a counterflow heat exchange structure, offering higher cooling efficiency compared to crossflow designs. The standard configuration includes core components such as the fill layer, air inlet window, and water collection basin, with spray pipes forming a water curtain to enhance heat transfer efficiency. The water deflector optimizes condensate recovery through its S-shaped profile and bracket-mounted structure. Installation requires precise foundation leveling and pipe support control. During operation, water turbidity must not exceed 50mg/L.

Classified by noise level into Standard (P), Low Noise (D), Ultra-Low Noise (C), and Industrial (G) types, it is primarily used in large-scale industrial cooling systems such as thermal power plants and chemical plants.

Design Parameters

Industrial Tower:

● Air wet-bulb temperature t = 28°C

● Inlet water temperature t₁ = 42°C

● Outlet temperature t₂ = 32°C

Civil Tower:

● Low Temperature Drop:t = 28°C

● Inlet water temperature t₁ = 37°C

● Outlet temperature t₂ = 32°C

Specifications & Models

型号	T=28 o C Cooling water flow rate (m³/h)		T=27 o C Cooling water flow rate (m³/h)		Main Dimensions (mm)		Airflow (m³/h)	Fan diameter (mm)	Motor power (KW)	Inlet Water Pressure	Noise dB(A)			Equivalent Diameter
型号	△t=5℃	△t=5℃	△t=5℃	△t=5℃	Overall Height	Width	Airflow (m³/h)	Fan diameter (mm)	Motor power (KW)	10⁴Pa	Dm	10m	16m	Dm(m)
DFNL-100 DFNDP-100 DFNGP-100	100	74.4	118.7	86.0	3830 4390 4690	2600	62000	1800	3.0/1.5	6.2	59.0	52	47.0	3.02
DFNL-150 DFNDP-150 DFNGP-150	150	109.8	175.1	126.9	4050 4670 4970	3000	84000	2100	4.0/2.0	6.3	60.5	54	50.6	3.47
DFNL-200 DFNDP-200 DFNGP-200	200	148.9	237.4	172.1	4340 4960 5260	3600	115000	2800	5.5/2.7	6.5	62.0	55.6	52.3	4.15
DFNL-300 DFNDP-300 DFNGP-300	300	224.9	350.6	258.3	5010 5690 5990	4300	158600	3400	7.5/3.7	5.8	62.0	57.8	54.4	4.94
DFNL-400 DFNDP-400 DFNGP-400	400	299.9	467.4	344.4	5300 6040 6340	4800	213000	3800	11/5.5	6.0	62.5	58.8	55.7	5.51
DFNL-500 DFNDP-500 DFNGP-500	500	374.9	584.3	430.4	5900 6700 7000	5300	265000	3800	15/7.5	6.4	62.5	59.3	56.2	6.08
DFNL-600 DFNDP-600 DFNGP-600	600	448.5	698.9	514.9	6140 6980 7280	6000	317500	4200	15/7.6	6.5	62.5	60.5	57.4	6.88
DFNL-750 DFNDP-750 DFNGP-750	750	561.7	875.3	644.9	6440 7290 7590	6800	400000	4200	22/11	6.8	63.0	61.4	58.4	7.79
DFNL-900 DFNDP-900 DFNGP-900	900	673.4	1049.5	773.2	6950 7900 8200	7300	490000	4700	30/15	7.0	63.8	62.9	60.0	8.36
DFNL-1050 DFNDP-1050 DFNGP-1050	1050	786.6	1225.9	903.1	7150 8100 8400	7800	556000	4700	30/16	7.0	64.6	63.1	53.9	8.93

Note:

1. The table lists cooling water flow rates for wet bulb temperatures: t=28°C, t=27°C operating conditions. At t=5°C, t1=37°C, t2=32°C; at t=8°C, t1=40°C, t2=32°C.

2. The noise values in the table are measured during nighttime low-speed motor operation with drip-absorbing pads installed. Without these pads, noise levels will be 5 dB(A) higher than the values listed.