Boiler 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 equipmentEmissionThe emitted noise can reach up to 130 decibels, far exceeding the noise regulations stipulated by our country.Industrial Noise Hygiene StandardsSpecified values (e.g., superheated steam at 1 kg/cm2 pressure can reach a velocity of 570-600 meters per second when discharged into the atmosphere through a hole. For saturated steam, the velocity can also reach 470-480 meters per second. Such high-velocity steam, when discharged into the atmosphere, generates a significant amount of noise due to exceeding the speed of sound, which is 340 meters per second). The noise reduction meets the requirements of the "Noise Hygiene Standards for Industrial Enterprises."

Section 3:Features

Pipe mufflers (silencers) 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 silencing and other gas emission silencing in industries such as oil, chemicals, metallurgy, and textiles..A muffler is a device that prevents sound from spreading while allowing air flow to pass through.Excl.Significant measures for reducing the dynamic noise of steam exhaustTo assess the quality of an exhaust muffler, consider the following three main aspects:

The sound absorption of the pipe silencer meets the requirements of the "Noise Hygiene Standard for Industrial Enterprises."

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

3. Structural performance of pipe silencers (including reasonable dimensions, low cost, and long lifespan).

Boiler steam in the power generation department is not only high temperature and high pressure but also has a wide frequency bandwidth; simply relying on small-hole sound absorption is not sufficient. The Zhuli Exhaust Steam Silencer is developed based on the composite noise reduction principle of resistance, jetting, and damping. It features large noise reduction capacity, wide frequency adaptability, 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 silencer is made of stainless steel (1Cr18Ni9Ti, 12Cr1MoV) for easy installation.

FourPrinciple

Boiler exhaust mufflers are manufactured based on the principle of micro-perforated plate noise reduction. The steam排放 from power plant boilers typically has high flow rates, which can affect the noise reduction of small holes.Please provide the Chinese content to be translated.Therefore, we need to control the flow first, 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 subjected to a large-volume pressure reduction, 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, and the frequency of the sound pressure level has been elevated toAbove 20000Hz, noise is greatly reduced. However, secondary noise at certain frequencies still requires further attenuation. We have added a resistive acoustic棉 structure to the exterior expansion, which is designed based on the spectrum characteristics of the residual noise emitted by the pressure reducer, to effectively absorb the remaining noise. After the user installs it according to specifications, the total noise reduction should reach 30-60 decibels to meet the requirements.

Five.Selection

The mufflers are meticulously designed according to the user's emission targets and requirements. Consequently, only products that match the emission targets and parameters are eligible.Please provide the Chinese content to be translated.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 (e.g., for boiler steam capacity or)SafetyValve exhausts, etc.).

(3) Exhaust pipe outer diameter, wall thickness.