CREATIVITY CHANGES YOUR LIFE
Tel: +86 0755-84870739
Email: info@nexhc.com
Company news | Industry news | Exhibitions and events | Optimization dedicated | aromatherapy diffuser |
source:Optimization dedicated release time:2022-10-08 Hits: Popular:aromatherapy diffuser direct sales
When everyone uses the positive pressure blower, they will feel that the noise of the fan is very loud, so they will take certain solutions to deal with it. But in different ways, the results are also different. Are you using the correct way to reduce noise? Here are some ways to correctly reduce the noise of the positive pressure blower, I hope you don't miss it.
In fact, the noise of the positive pressure blower is generated when the equipment is supplying air, and the blades are periodically subjected to the pulse of uneven airflow; on the other hand, due to the uneven pressure distribution on the blades , the disturbance to the surrounding gas and parts during rotation also constitutes rotational noise. In addition, due to the turbulent boundary layer generated by the gas flowing through the blade, the vortex leaves, causing the pulsation of the pressure distribution on the blade to generate vortex noise. Rotation noise and eddy current noise combine the aerodynamic noise of the fan, so controlling the aerodynamic noise of the blades is the fundamental to eliminate the fan noise. The shroud, the layout of the motor support and the vertical chamber of the fan and the air-cooled condenser that make up the positive pressure blower also affect the performance of the fan to a considerable extent, which must also be studied in detail.
Low noise: The outer casing of the fan is specially designed to greatly reduce the outflow noise. Under the working conditions of unit air volume and unit air pressure, the ratio of A
The sound level can be reduced by 2-3dB(A), and at the same time at a lower speed, higher fan pressure can be obtained. in industrial and mining enterprises and high-level civil buildings
In the air supply and exhaust system, it can replace the low-pressure centrifugal fan or replace the high-pressure axial fan without a lot of noise reduction measures.
Advantages of positive pressure blower:
Advantage 1. The airfoil of the positive pressure blower is determined through model test research. The axial flow positive pressure blower adopts a cylindrical hub structure, and the motor is remodeled to reduce the flow loss in structure, so that the fan efficiency is The area of the outlet circle is increased to 77%. Which GXF axial-flow positive pressure blower should be selected, according to the area of the outlet ring, it is increased to 89.5%, which is 3.6dB lower than the A sound level.
Advantage 2. The positive pressure blower is divided into 13 machine numbers according to the diameter of the impeller, which are arranged as №2.8, 3.15, 3.55, 4, 4.5, 5, 5.6, 6.3, 7.1, 8, 9, 10, 11.2. Each machine number is divided into 5 types of installation angles of the blade axial flow positive pressure blower blades, such as 15°, 20°, 25°, 30°, and 35°.
Depending on the type of axial flow blower, the noise generated during operation will also vary. Although the high-efficiency axial blower is inevitably noisy, it is still annoying. Because the axial flow blower has such a great relationship with our production, the noise reduction of the axial flow blower operation is naturally a very important topic. Hope this article can give you some reference and help.
Read recommendations:
purification performance of the purifier and the effect of the humidifier.air purifier covid Vendor
How to choose the right chassis energy-saving EC fan.electric fan direct sales
NextThe best solution to solve the fault of industrial pipeline blower.mini fan manufacturer
Popular recommendation
L06 Night Light
2021-09-14H04 Heater Fan
2021-09-14F07 Cooling Fan
2021-09-14F20 desk Cooling Fan
2021-10-06K6 portable air purifier Car Air purifier
2021-09-15What is the principle of a car air purifier?mini air purifier sales
2021-11-26Away from solid fresheners, a car-mounted aromatherapy machine suitable for both home and car.aromat
2022-04-16Can air purifier manufacturers purify formaldehyde?
2022-04-13Humidification and air purifiers should be staggered!Air purifier Processing
2021-10-19Introduce the common types of air purifiers from a functional point of view!Air purifier Processor
2021-10-22Does the humidifier emit radiation
2024-09-28Is using a humidifier at home harmful to the body?
2024-09-09How long does a dehumidifier usually run per day?
2024-09-09Humidifier classification
2024-08-24Humidifiers nourish daily life
2024-08-17Common classification methods for humidifiers
2024-08-10How to dehumidify with a dehumidifier
2024-07-22Working process of dehumidifier
2024-07-22High pressure micro fog humidifier for air conditioning unit
2024-07-13What are the possible reasons why humidifiers do not produce fog
2024-07-08Contact the following for inquiries regarding our services and products.