Miniature muffler

Product Details

I. Definition

Pipe mufflers (noise suppressors) are primarily used for effective noise reduction of steam emissions from thermal equipment such as boilers and steam turbines in the power generation department.。

II. Usage

Steam BoilerSteam related to thermal equipmentEmissionThe noise emitted can reach up to 130 decibels, far exceeding the noise regulations issued by our country.Industrial Enterprise Noise Hygiene StandardsSpecified values (e.g., superheated steam at 1 kg/cm², when discharged into the atmosphere through an opening, can reach a velocity of 570-600 meters/second. For saturated steam, the velocity can reach 470-480 meters/second. Such high-speed steam, when discharged into the atmosphere, generates a significant amount of noise due to exceeding the speed of sound, which is 340 meters/second). The noise reduction meets the requirements of the "Industrial Enterprise Noise Hygiene Standard."

Three,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, chemical, metallurgy, and textile, among others..A muffler is a device that prevents sound from spreading while allowing air flow, and it is a quietening device.ExcludingImportant measures for reducing steam exhaust dynamic noiseTo assess the quality of an exhaust muffler, consider the following three main aspects:

The noise reduction of the pipeline silencer meets the requirements of the "Noise Hygiene Standards for Industrial Enterprises."

2. The adaptability of pipe silencers (i.e., suitable for low to mid-frequency bandwidth and high temperature and pressure conditions).

3. Structural performance of pipeline silencers (Reasonable dimensions, low cost, long lifespan, 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, which cannot be effectively attenuated by simply using small-hole silencers. The Zuli Exhaust Steam Silencer is developed based on the composite noise reduction principle of resistance, jet, and damping, featuring large noise reduction capacity, wide frequency adaptability, and targeted design (for various boilers and pressure vessel pipelines with parameters such as low pressure, medium pressure, sub-high pressure, high pressure, ultra-high pressure, subcritical, and supercritical), with the advantages of easy manufacturing and installation of the silencer tube made of stainless steel (1Cr18Ni9Ti, 12Cr1MoV).

FourPrinciple

Boiler exhaust silencers are manufactured based on the micro-perforated plate noise reduction principle. Steam emissions from power plant boilers typically have high flow rates, and high flow rates can affect the noise reduction of small holes.LargeTherefore, we need to control the flow first, and then the steam that has been through the initial flow control enters the expansion chamber, where it is further reduced in pressure and noise. 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 orifices. After ejection, the sound power in each frequency band has been reduced, while the frequency of the sound pressure level has been elevated toAbove 20,000Hz, the noise is greatly reduced. However, secondary noise at certain frequencies still requires further attenuation. We have added a resistive acoustic cotton structure to the exterior expansion, which is designed based on the spectral 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 to meet the requirements.

FiveSelect a model

The muffler is meticulously designed according to the user's emission target and requirements. Therefore, only products that match the emission target and parameters can be approved.LargeExcellent sound-dampening effect.

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

(1) Steam emission amount (T/h), as well as pressure and temperature.

（2) Intended Use (e.g., for boiler steam capacity or)SafetyValve discharges, etc.

(3) Exhaust pipe outer diameter, wall thickness.