Jet fan mufflers for industrial muffling and noise reduction
One.fan silencer
According to the spectrum characteristic data obtained from the actual test of noise sources of various industrial fans, it is the main basis for designing sound absorbers and fluid channels to determine how much noise reduction is needed in which frequency spectrum ranges. At the same time, narrow rectangular channels with large sound absorption materials are adopted to enhance the absorption effect. In addition, when the noise sources of fans are at the maximum noise level, there are often more than one spectrum value, and the requirements for noise reduction are different for different frequency bands.
1.Introduction of Muffler for Chip (JSGF) Fan
Chip muffler, as the name implies, is equipped with a muffler inside. When the sound flow passes through the muffler, it will be absorbed by the internal muffler cotton. It is a kind of equipment for muffler mainly through the internal muffler. It is suitable for the inlet and outlet of the fan, and the muffler effect is generally required. This model is selected.
The connection mode of chip muffler is generally flange connection, which can be fixed with lugs or feet when installation.
2.Introduction of New Type High Efficiency Compound (JSGZ) Fan Muffler
The new high-efficiency compound muffler is an effective combination of volume expansion and impedance sound absorption materials through appropriate structures. Principle: After the gas (steam) flow is expanded by the internal expansion device, a plurality of steam (gas) flows through the multi-stage silencing device for effective silencing, thus achieving the best silencing effect.
Scope of application: It is suitable for effective noise elimination equipment at the inlet and outlet of clean gas (steam) flow with high noise elimination requirements.
Advantages:
(1)Good noise elimination effect;
(2) Low resistance and high safety;
(3) Long service life and convenient installation.
3.Introduction of JSGS Type Fan Muffler
Multi-tube patented muffler is a new type of structural muffler developed by our company. The muffler is muffled by muffling pipes and is filled with sound-absorbing materials. When the airflow enters the muffler, it first passes through the muffler pipe.
At this time, the airflow contacts the muffler material in the muffler pipe, and it is effectively muffled by the sound-absorbing material in the muffler pipe.
It is suitable for equipment with high requirements for muffler effect, and it is also suitable for effective muffling of more granular objects in the gas (steam) flow.
TWO.Selection Guide
Lianyungang Jiusheng muffler model description:
Ordering parameters of fan muffler:
Sound waves | Noise sources |
dB(A) | |
130 | High Pressure and Above Boiler Exhaust |
125 | High and medium pressure boiler exhaust air discharge |
120 | Medium and low pressure boiler exhaust air, backpressure steam turbine exhaust air;Large ball grinder |
115 | Boilers are regularly discharged |
120 | Backpressure steam turbine backpressure exhaust air; The big blowers come in,Diesel generators |
105 | High pressure deoxygenator exhaust steam, high and medium pressure steam turbine start to stop hydrophobic exhaust steam; |
Boiler continuous discharge, large generator magnet inlet. | |
100 | Exhaust type exhaust exhaust; Steamwheel oil pump exhaust; Ventilation of large generators; |
Next to a large blower | |
95 | Engine room operating layer; Large small pump room; Medium motor |
90 | Auto room zero meter layer; Medium Water Pumping Room |
Mufflers for boiler installations (swallow steam muffler, worm furnace ignition muffler, safety valve exhaust muffler, turbine exhaust muffler, etc.) | ||||||
Model | Flow rate | Work stress | Dimensions | Connection diameter | Weight | |
(t/H) | (Mpa) | L | D | DN | Kg | |
JS-25/1.60 | 1 | 0.901.60 | 480 | 200 | 25 | 23 |
JS-32/1.60 | 2 | 700 | 200 | 32 | 34 | |
75-50/1.60 | 3 | 870 | 280 | 50 | 60 | |
JS-65/1.60 | 5 | 920 | 360 | 65 | 75 | |
JS-80/1.60 | 15 | 1010 | 450 | 80 | 102 | |
JS-100/1.60 | 20 | 1240 | 520 | 100 | 145 | |
JS-125/1.60 | 25 | 1560 | 640 | 125 | 225 | |
JS-150/1.60 | 30 | 18H0 | 760 | 150 | 322 | |
JS-200/1.60 | 35 | 2500 | 1000 | 200 | 561 | |
JS 32/2.5 | 5 | 1.70--2.50 | 580 | 260 | 32 | 30 |
JS-50/2.5 | 10 | 780 | 330 | 50 | 55 | |
JS-65/2.5 | 15 | 1050 | 430 | 65 | 99 | |
JS-80/2.5 | 20 | 1170 | 500 | 80 | 135 | |
JS-100/2.5 | 25 | 1470 | 620 | 100 | 200 | |
JS-125/2.5 | 30 | 1820 | 760 | 125 | 311 | |
JS-150/2.5 | 35 | 2100 | 940 | 150 | 452 | |
JS-50/3.30 | 10 | 2.6-3.30 | 860 | 360 | 50 | 66 |
JS-65/3.30 | 15 | 1150 | 500 | 65 | 128 | |
JS 80/3.30 | 20 | 1320 | 570 | 80 | 165 | |
JS-100/3.30 | 35 | 1610 | 700 | 100 | 250 | |
JS-125/3.30 | 45 | 2020 | 880 | 125 | 394 | |
JS-150/3.30 | 65 | 2360 | 1050 | 150 | 568 | |
Note: (1) A few examples of technical specifications are given for reference (2)To order, please provide: gas medium. Pipe diameter. Working pressure. Flow rate |