Jiufu Manufactures and Designs Fan Mufflers for Blower Ventilation Ducts
Description：Jiufu Manufactures and Designs Fan Mufflers for Blower Ventilation Ducts - China Blower Mufflers and Mufflers
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.
At the same time, two sound absorption and noise reduction zones of high frequency and low frequency are adopted in the resistive channel to widen the noise elimination frequency band to the maximum extent, so as to achieve good noise elimination and noise reduction effect.
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.
(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.
Lianyungang Jiusheng muffler model description:
Ordering parameters of fan muffler:(1) Interface shape (round/square) (2) Connection position (air inlet/air outlet) (3) Interface size (mm/mm×mm) (4) Working wind pressure (Pa) (5) Air volume (m/h) (6) Installation method (vertical/horizontal, ear seat/foot) (7) Connection mode (welding/flange connection)
(8) Do you need to provide a rain hat or bird net?
Annex: Noise meters for thermal power plants
|Sound waves||Noise sources|
|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|
|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
a national high-tech enterprise, is located at the foot of Jinping Mountain and beside the Qiangwei River. The factory is located in Lianyungang City, Jiangsu Province, the intersection of the the Belt and Road, and the east bridgehead of the Eurasian Continental Bridge.
It is adjacent to the 5A scenic spot of Huaguo Mountain and Liu Zhizhou Sports Park.
It is 5 kilometers away from the entrance and exit of the expressway, 13 kilometers away from the airport, and 36 kilometers away from the port.
It has convenient transportation by land, sea and air.
The company was founded in 2012 with a registered capital of 51 million yuan and an area of 20,000 square meters. It has 6 standardized industrial plants, supporting office areas, living quarters and finished goods yards, with a building area of about 11,000 square meters.
Our Advantages Jiusheng Company has honed a sword for ten years, casting the soul of the enterprise with the spirit of craftsman.
Under the careful creation of Chairman Xie Qizhi, it has grown into a well-known enterprise in the domestic power auxiliary machinery industry.
It integrates the design, production and sales of electric auxiliary machinery, pressure vessels, chemical equipment and pipeline engineering installation services.
It has the qualification of designing & manufacturing
D1 and D2 level pressure vessel , and the qualificaton of GB2 and GC2 pipeline engineering installation.
It passedISO9001 international quality system,ISO14001 environmental health management system, ISO45001 occupational health management system certification in the industry, and also owns Madrid international trademark and product import and export qualification.
It has certain manufacturing experience in American standard and European standard pressure vessels and other products and has been recognized as a qualified supplier by more than 10 central enterprises in the industry, including CNNC, Sinopec, PetroChina, Huadian, Huaneng, China Resources, China Railway, China Energy Construction, China Power Construction, Guoneng, Everbright, etc.