Micro-perforated plate silencer

Product Details

I. Definition

Pipe silencers (noise dampers) are primarily used for effective noise reduction of steam emissions from thermal equipment such as boilers and steam turbines in power generation departments.。

II. Usage

Steam BoilerSteam for thermal equipmentEmissionThe emitted noise can reach up to 130 decibels, far exceeding the noise standards set forth by our country's regulations.Industrial Noise Hygiene StandardsSpecified values (e.g., superheated steam at 1 kg/cm², when expelled into the atmosphere through an opening, can reach a speed of 570-600 meters/second. For saturated steam, the speed can also reach 470-480 meters/second. Such high-speed steam, when expelled at supersonic speeds of 340 meters/second, generates a significant amount of noise). The noise reduction effect meets the requirements of the "Noise Hygiene Standards for Industrial Enterprises."

III.Features

Pipe mufflers (noise dampers) 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 boiler steam emissions and other gas noise reduction in industries like oil, chemical, metallurgy, and textile..A muffler is a device that prevents sound from spreading while allowing airflow to pass through.ExcludingSignificant measures for reducing the dynamic noise of steam exhaustTo assess the quality of an exhaust muffler, the following three aspects are primarily considered:

The noise reduction of the pipe silencer meets the requirements of the "Hygienic Standards for Noise in Industrial Enterprises."

2. The adaptability of pipe silencers (i.e., capable of adapting to a wide bandwidth of low to mid-frequency spectra and high temperature/pressure conditions).

3. Structural performance of pipeline silencers (including reasonable dimensions, low cost, long service life, etc.).

Boiler steam in the power generation department is not only high temperature and high pressure but also has a wide frequency range of emissions. Simply relying on small-hole noise reduction is insufficient. The Zuli Exhaust Noise Attenuator is developed based on the composite noise reduction principle of resistance, injection, and obstruction, featuring large noise reduction capacity, wide frequency range adaptation, and targeted design (for various boilers and pressure vessel pipeline exhaust venting, including parameters such as low-pressure, medium-pressure, sub-high-pressure, high-pressure, ultra-high-pressure, subcritical, and supercritical). The noise reduction tube is made of stainless steel (1Cr18Ni9Ti, 12Cr1MoV) and is easy to manufacture and install.

FourPrinciple

Boiler exhaust mufflers are manufactured based on the micro-perforated plate noise reduction principle. The steam exhaust from power plant boilers typically has high velocity, and high velocity can affect the noise reduction of small holes.Please provide the Chinese content you would like translated into American English.Therefore, we need to control the flow first. After passing through the initial flow control, the steam enters the expansion chamber, where it undergoes further pressure reduction and noise suppression. After the steam is depressurized through a large volume, it forms low-pressure steam that is ejected. During this process, the airflow is ejected through small orifices. After ejection, the sound power across various frequency bands has been reduced, and the frequency of the sound pressure level has been elevated toAbove 20000Hz range, the noise is greatly reduced. However, secondary noise at certain frequencies still requires further attenuation. We have added a resistive sound-absorbing cotton structure to the exterior expansion, which is designed based on the spectrum characteristics of the remaining noise emitted by the voltage reducer, to effectively absorb the residual noise. After the user installs it according to specifications, the total noise reduction should reach 30-60 decibels, meeting the requirements.

FiveSelect Option

The mufflers are meticulously designed according to the user's emission targets and requirements. Therefore, only products that match the emission targets and parameters are eligible.LargeExcellent sound-dampening effect.

Therefore, when ordering the muffler, the following information must be provided:

(1) Steam discharge amount (T/h), along with pressure and temperature.

（2) Application (e.g., for boiler steam capacity or)SafetyValve exhausts, etc.

(3) Exhaust pipe outer diameter, wall thickness.