Impedance-type muffler manufacturer

Product Details

I. Definition

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

II. Application

Steam BoilerSteam related to thermal equipmentEmissionThe emitted noise can reach up to 130 decibels, far exceeding the noise standards promulgated by our country.Industrial 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 also reach 470-480 meters/second. Such high-velocity steam, when discharged into the atmosphere, generates a significant noise level due to exceeding the speed of sound at 340 meters/second). The noise reduction effect meets the requirements of the "Noise Hygiene Standards for Industrial Enterprises."

Section 3: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 textiles..A muffler is a device that blocks the transmission of sound while allowing air flow through; it is clear.ExcludingKey measures for reducing steam exhaust dynamic noiseTo assess the quality of an exhaust muffler, consider the following three main aspects:

The sound absorption of the pipeline muffler meets the requirements of the "Noise Hygiene Standards for Industrial Enterprises."

2. The adaptability of pipeline silencers (i.e., capable of handling low to medium frequency bandwidth and high temperature and pressure conditions).

3. Structural performance of pipe 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 sufficiently attenuated by simple perforated mufflers. The Zulai exhaust steam muffler is developed based on the composite noise reduction principle of resistance, jet, and impedance. It boasts large noise reduction capacity, a wide frequency bandwidth, and is specifically designed for various boiler and pressure vessel pipeline exhaust venting (parameters such as low, medium, sub-high, high, ultra-high, subcritical, and supercritical pressures). The muffler is made of stainless steel (1Cr18Ni9Ti, 12Cr1MoV) for ease of manufacturing and installation.

Four,Principle

Boiler exhaust mufflers are manufactured based on the micro-perforated plate noise reduction principle. Power plant boiler steam emissions typically have high flow rates, and high flow rates can affect the noise reduction of small holes.Please provide the Chinese content that needs to be translated into American English.So, we need to control the flow first, and then the steam that has undergone once flow control enters the expansion chamber, where it is further pressure-reduced and noise-suppressed. After the steam is pressure-reduced 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 is reduced, while the frequency of the sound pressure level is pushed higher toAbove 20,000Hz, the noise is significantly 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 residual noise emitted by the pressure-reducing unit to effectively absorb the remaining noise. After installation according to specifications, the total noise reduction should reach 30-60 decibels to meet the requirements.

FiveSelect

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.Please provide the Chinese content you would like translated into American English.Excellent sound-dampening effect.

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

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

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

(3) Exhaust pipe outer diameter, wall thickness.