As a specialized exporter and direct factory supplier of low noise collecting type counterflow FRP cooling towers, our engineering differentiation lies in the patented water-collecting basin that eliminates drift loss while sustaining thermal performance under 35°C wet-bulb conditions. Unlike standard crossflow units, this counterflow design pairs with ultra-silent fan blades and a double-layer PVC drift eliminator, ensuring site noise levels consistently remain below 75 dB(A)—a critical specification for urban hospital HVAC retrofits and gas turbine auxiliary cooling systems. We provide not only ex-works pricing but also structural calculation reports and 3D BIM models, enabling your local engineering team to verify nozzle distribution and fill volume prior to shipment, reducing on-site rework risks by 40%.
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Product Advantages
Structural Integrity with Marine-Grade FRP Laminate
Unlike ordinary industrial polyester resins, our cooling tower shell employs a flame-retardant, UV-stabilized isophthalic FRP laminate with a gel-coat thickness of 0.5 mm. This formulation resists micro-cracking under continuous thermal cycling (from 10°C to 55°C ambient swings) and maintains flexural strength above 180 MPa for over 15 years. We deliberately avoid calcium-filled cheap layers—every panel passes a 2,000-hour salt-spray test, making our towers equally reliable for coastal LNG terminals and inland steel mill recirculating systems.
Drift Elimination and Water Conservation Engineering
The "collecting type" designation is not cosmetic—it integrates a three-stage drift eliminator with a sinusoidal chevron profile, positioned just 300 mm above the air inlet. This geometry reduces water carryover to below 0.001% of circulating flow, even at 120% of design air velocity. For a 500 m³/h system, this translates to saving approximately 4.5 tons of make-up water per month compared to conventional eliminator designs. Additionally, the basin's built-in weir and equalizing port allow full drainage without pump cavitation, a feature often overlooked but critical for winter shutdown in temperate climates.
Acoustic Performance Without Compromising Thermal Duty
Our low-noise claim is validated by third-party tests at 8-meter distance: 73.5 dB(A) for standard fan configuration and 69.2 dB(A) with the optional high-efficiency six-blade aerodynamic rotor. More importantly, we achieve this noise floor without reducing the fill volume or increasing the tower footprint. By optimizing the fan stack angle and using a direct-drive TEFC motor with dynamically balanced hubs, we suppress both broadband noise and discrete tonal peaks at blade-passing frequencies—a decisive advantage for projects requiring night-time operation near residential zones or hospital intensive-care wings.
Parameter Specifications
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Product |
Low Noise collecting Type Counterflow FRP Cooling Tower |
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Model |
τ=27℃ |
Main Dimensions (mm) |
Air Volume m³/h |
Fan Diameter (mm) |
Motor Power (kw) |
weight (kg) |
inlet pressure 10⁴Pa |
noise at 10m dB (A) |
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|
Total Height |
Maximum Diameter |
self-weight |
operating weight |
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|
DBNL3J-12 |
15 |
2333 |
1210 |
7200 |
700 |
0.6 |
217 |
775 |
1.96 |
40.3 |
|
DBNL3J-20 |
24 |
2423 |
1460 |
12400 |
800 |
0.8 |
244 |
958 |
2 |
41.1 |
|
DBNL3J-30 |
35 |
2642 |
1912 |
18000 |
1200 |
0.8 |
424 |
1734 |
2.21 |
43.5 |
|
DBNL3J-40 |
46 |
3142 |
1912 |
21500 |
1200 |
1.1 |
496 |
1896 |
2.6 |
43.5 |
|
DBNL3J-50 |
57 |
3130 |
2215 |
28000 |
1400 |
1.5 |
617 |
2505 |
2.65 |
44.7 |
|
DBNL3J-60 |
68 |
3430 |
2215 |
32300 |
1400 |
1.5 |
667 |
2829 |
2.78 |
45.7 |
|
DBNL3J-70 |
79 |
3444 |
2629 |
39200 |
1600 |
2.2 |
824 |
3816 |
3.03 |
47 |
|
DBNL3J-80 |
92 |
3744 |
2629 |
43400 |
1600 |
2.2 |
909 |
4240 |
2.86 |
47.5 |
|
DBNL3J-100 |
114 |
3694 |
3134 |
56000 |
1800 |
3 |
1014 |
5932 |
3.15 |
50 |
|
DBNL3J-125 |
142 |
3944 |
3134 |
67200 |
1800 |
4 |
1104 |
6158 |
3.15 |
50.7 |
|
DBNL3J-150 |
171 |
3953 |
3732 |
84000 |
2400 |
4 |
1744 |
8246 |
2.9 |
52 |
|
DBNL3J-175 |
200 |
4203 |
3732 |
94300 |
2400 |
5.5 |
1884 |
8582 |
3.15 |
53 |
|
DBNL3J-200 |
231 |
4235 |
4342 |
112000 |
2800 |
5.5 |
2208 |
11210 |
3.01 |
54.6 |
|
DBNL3J-250 |
283 |
4485 |
4342 |
134300 |
2800 |
7.5 |
2420 |
11983 |
3.26 |
55.6 |
|
DBNL3J-300 |
334 |
4623 |
5134 |
168000 |
3400 |
11 |
3648 |
17173 |
3.5 |
56.8 |
|
DBNL3J-350 |
395 |
4873 |
5134 |
187400 |
3800 |
11 |
3950 |
17850 |
3.75 |
57.3 |
|
DBNL3J-400 |
455 |
5018 |
6044 |
224000 |
3800 |
11 |
4406 |
23132 |
3.6 |
58.8 |
|
DBNL3J-450 |
514 |
5268 |
6044 |
242000 |
3800 |
11 |
4752 |
24510 |
3.85 |
58.8 |
|
DBNL3J-500 |
576 |
5619 |
6746 |
280000 |
4200 |
15 |
5887 |
30062 |
3.7 |
60 |
|
DBNL3J-600 |
680 |
6119 |
6746 |
302200 |
4200 |
18.5 |
6689 |
32164 |
4.2 |
61 |
|
Features |
The FRP cooling tower serves not only as a temperature regulator but also delivers an efficient, durable, and maintenance-free solution with optimized lifecycle costs. By harnessing the unique properties of FRP materials, it fundamentally addresses the critical challenges of corrosion and lifespan limitations in harsh operating environments, making it the go-to choice for cooling systems in modern industrial and commercial facilities. |
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Application
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Central air conditioning system: refrigeration station for commercial buildings, hotels and hospitals. |
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Industrial refrigeration: process cooling for food processing, chemical, pharmaceutical and plastic industries. |
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Power industry: auxiliary cooling system for thermal power plant and nuclear power plant. |
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Manufacturing industry: circulating water cooling for metallurgical and mechanical processing plants. |
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Data center: Provides cooling water for server rooms. |
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Payment |
T/T, Western Union. |
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Service |
Customize and design the size and style according to requirements |
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Telf.: +86 189 3266 2725
Correo electrónico: venta@hbfortis.com
Agregar.: No.8-1, calle Zhenxing, ciudad de Matun, condado de Zaoqiang, ciudad de Hengshui, provincia de Hebei
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