Product Details
I. Definition
Pipe muffler (muffler) products mainlyEffective noise reduction for steam emissions from boilers, steam turbines, and other thermal equipment in power generation departments。
II. Application
For use with: Steam BoilersSteam related to thermal equipmentEmissionThe noise emitted can reach up to 130 decibels.
III.Features
Pipe silencers (mufflers) are primarily used for effectively silencing steam emissions from thermal equipment such as boilers and steam turbines in power generation departments. They are also widely employed in the steam emissions and noise reduction of gases in industries such as oil, chemicals, metallurgy, and textiles.A muffler is a device that blocks sound from spreading while allowing airflow through.Significant measures for reducing the dynamic noise of steam exhaustTo evaluate the quality of an exhaust muffler, consider the following three main aspects:
The noise reduction of the pipeline muffler meets the requirements of the "Noise Hygiene Standard for Industrial Enterprises."
2. Pipe silencers are adaptable to a wide frequency spectrum including low and medium frequencies, as well as high temperatures and pressures.
3. Pipe silencers feature reasonable structural dimensions, low cost, and long service life.
Boiler steam in the power generation department is not only high temperature and high pressure but also has a wide emission frequency range. Simply relying on small hole soundproofing is insufficient. The Assistive Exhaust Sound Attenuator is developed based on the composite noise reduction principle of resistance, injection, and impedance. It features large noise reduction capacity, wide frequency adaptation, and targeted design (for various boiler and pressure vessel pipeline exhaust emissions, including parameters such as low, medium, sub-high, high, ultra-high, subcritical, and supercritical pressures), with the advantages of easy manufacturing and installation of the noise reduction tube using stainless steel (1Cr18Ni9Ti, 12Cr1MoV).
Four,Principle
Boiler exhaust silencers are manufactured based on the micro-perforated plate noise reduction principle. The steam排放 from power plant boilers typically has high flow rates, and high flow rates have a significant impact on the noise reduction of small holes. Therefore, we need to control the flow first, and then the steam that has been controlled flows into the expansion chamber for further pressure reduction and noise reduction. After the steam is depressurized in a large volume, it forms low-pressure steam that is ejected. During this process, the airflow is ejected through small diameter holes. After ejection, the sound power in various frequency bands is reduced, and the sound pressure level frequency is pushed up to above 20,000Hz, significantly reducing the noise. However, secondary noise at certain frequencies still requires further noise reduction. We add a resistive sound-absorbing cotton structure outside the expansion chamber, which is designed based on the frequency spectrum characteristics of the remaining noise emitted by the depressurization body, to effectively absorb the remaining noise. After the user installs it according to specifications, the total noise reduction should reach 30-60 decibels, meeting the required standard.
Five.Selection
The mufflers are meticulously designed according to the customer's emission targets and requirements. Consequently, only products that match the emission targets and parameters are eligible.GoodExcellent sound-dampening effect.
