Pipe muffler

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. Usage

Steam BoilerSteam related to thermal equipmentEmissionNoise emitted can reach up to 130 decibels, far exceeding the standards set forth in our country's "Industrial Noise Hygiene StandardSpecified values (e.g., superheated steam at 1 kg/cm2 pressure can reach speeds of 570-600 meters/second when discharged into the atmosphere through an opening. For saturated steam, the speed can also reach 470-480 meters/second. At such high speeds, the noise generated when discharged into the atmosphere exceeds the speed of sound (340 meters/second), resulting in significant noise). The noise reduction effect meets the requirements of the "Noise Sanitation 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, chemicals, metallurgy, and textiles..A muffler is a device that prevents sound from spreading while allowing airflow to pass through; it is a quieting device.ExcludingKey measures for reducing steam exhaust noise's dynamismTo assess 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 Standards for Industrial Enterprises."

2. The adaptability of pipeline silencers (i.e., suitable for low to mid-frequency spectrum, wideband, 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. Simply using small-hole sound absorption is not sufficient. The Aulii Exhaust Muffler is developed based on the composite noise reduction principle of resistance, jet, and damping, featuring large noise reduction, 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, sub-critical, and super-critical pressures). The noise reduction sleeve is made of stainless steel (1Cr18Ni9Ti, 12Cr1MoV) and is easy to install.

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 significantly affect the noise reduction of small holes.Please provide the Chinese content to be translated.So, we first need to control the flow. After passing through the flow control, the steam enters the expansion chamber, where it is further reduced in pressure and noise. After the steam is reduced in pressure 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 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.

Five,Selection

The muffler is meticulously designed according to the customer's emission target and requirements. Therefore, only products that match the emission target and parameters are eligible.Please provide the Chinese content you would like translated into American English.Excellent sound-dampening effect.

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

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

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

(3) Exhaust pipe outer diameter, wall thickness.