NCC is a leading global manufacturer of multi-function louvers whose rugged, high-performance products have been used many times around the world.
NCC sand louvers are used in ventilation works.
Transformer/substation sound insulation room, radiator, boiler room
Ventilation louvers for radiators in construction machinery
Air intake air intake in the data center
Water pump room air intake
The vent on the soundproof enclosure
Fan vent
Ventilation system Air intake Air intake for outdoor units such as cooling towers
NCC Sand Trap Louver Function
The integrated design of louvers and dust filters facilitates the disassembly and assembly of filters;
The blade is a single S-shaped structure with waterproof and sand proof functions;
Louvers and dust filters are made of aluminum alloy material, which will not rust in any harsh environment;
A comprehensive solution that integrates rain, water, snow, sand, and dust;
Installation method optional: external or built-in (anti-theft design).
Filter can be selected: stainless steel mesh;
Protection level: IP54;
Optional filtration device: initial/medium efficiency;
The product thickness is 100mm and 200mm respectively;
Application industries: photovoltaic industry, wind power industry, charging pile industry, shipbuilding industry, air conditioning industry, etc
The main features and benefits of NCC acoustic louvers are:
Equipped with weatherproof sealing plate to prevent rain and snow infiltration.Equipped with rainproof and rust-proof material selection and
surface treatment process.
Reduce reflection noise and parallel barriers to improve indoor sound insulation.
Louver ventilation improves indoor air quality.The modular design makes the louvers suitable for "vents" of any size.
It can be used as an independent barrier around the equipment or combined with building walls.Composed of prefabricated parts, it can be assembled in the field quickly and without welding.
The horizontal layout of the sand shutter not only reflects the beauty, but also enhances the sand and dust prevention performance.Effectively prevent sand and dust from entering the room and adjust the indoor temperature and humidity.
With steel structure design ability, with wind, snow load calculation ability, improve indoor safety.Meet anti-theft requirements and standards.
NCC's louvers have an energy-efficient aerodynamic design and very low pressure drop characteristics. The robust all-metal construction ensures the long service life of the NCC noise reduction louvers. If required, we can also supply the necessary supporting steel structures and provide comprehensive installation services.And for each individual project, it can be adjusted according to site conditions, as well as environmental factors.
Table 1 NCC Sandproof Louver Sand Trap Rate (Proportion) and Pressure Loss Table
| No |
Free Area Velocity
(m/s)
|
Total weight of sand injected
(Kg)
|
Block the weight of sand
(Kg)
|
Sand control rate
(%)
|
Loss of pressurel
(Pa)
|
| 1 |
0.5 |
1 |
0.95 |
95 |
8 |
| 2 |
1.5 |
1 |
0.88 |
88.0 |
15 |
| 3 |
4.0 |
1 |
0.56 |
56.0 |
85 |
| 4 |
6.0 |
2 |
0.85 |
29.0 |
110 |
| 5 |
8.5 |
2 |
0.28 |
14.0 |
210 |
Table 2 Composition Table of Experimental Sand Particles (Proportion)
|
Gradesize
μm
|
Mass
%
|
| >699 |
5 |
| 423 to 699 |
30 |
| 353 to 422 |
120 |
| 251 to 352 |
300 |
| 211 to 250 |
200 |
| 152 to 210 |
270 |
| 104 to 151 |
60 |
| 76 to 103 |
10 |
| <76 |
5 |
The specification shown in Table 2 matches very closely desert type sand and dust, and illustrates an overall grade. Other grades of sand can also be used for the tests and are specified as follows:
a) FINE - sand between 106 and 150 um. b) COARSE - sand between 355 and 425 um.
NCC Acoustic Laboratory - A Laboratory Professionaly Committed to Serving Customers
We exert every ounce of our strength to construct a high-end, avant-garde laboratory endowed with autonomous control capabilities. For all bespoke products, be it in terms of specifications, dimensions, or acoustic requisites, prior to entering the mass production phase, we shall enforce rigorous and meticulous pre-production sample testing procedures. Only upon thorough confirmation that all indicators are up to par will we invest a considerable amount of human and material resources to embark on mass production endeavors, thereby effectively guaranteeing that each and every batch of large-scale goods delivered to clients possesses outstanding quality.
The fabricated product samples are positioned within the spacious window of the laboratory and securely fastened through professional sealing measures. Through precise adjustment of the relevant parameters and concurrent utilization of advanced and precise apparatuses for comprehensive and profound testing, it is ultimately ensured that the products can fully comply with the exacting requirements of customers.
As depicted in the illustration, the external noise of the laboratory attains 80.1 dB, while through random measurement, the internal acoustic laboratory drops to 36.4 dB or even lower. The elevated standard of sound insulation not only ensures the accuracy of the experimentation but also furnishes a robust guarantee for the test outcomes.
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