Steam Muffler / Steam Muffler / Safety Valve Exhaust Muffler / Muffler / Safety Valve Muffler / Muffler / Boiler Muffler

I. Overview The steam muffler series products can be used to effectively muffle steam and other gas muffler emissions in municipal, electric power, petroleum, chemical, metallurgical, textile, cement, environmental protection and other industries. It is an important measure to eliminate steam emission noise. For example: st

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I. Overview 
The steam muffler series products can be used to effectively muffle steam and other gas muffler emissions in municipal, electric power, petroleum, chemical, metallurgical, textile, cement, environmental protection and other industries. It is an important measure to eliminate steam emission noise. For example: steam boilers, steam pipes, safety valves, superheaters, reheaters, deaerators, steam turbines, steam drums, safety doors, autoclaves, pressure kettles and other equipment for steam emission noise reduction and noise reduction. When the user installs Lianyungang Zhuli machinery products as required, the sound attenuation can reach 30-90 decibels.

2. Principle
The steam muffler is mainly based on the principle of "small hole injection" combined with "impedance expansion and sound absorption". Steam discharge generally has a fast flow rate and high flow noise. It is necessary to expand the flow with through holes first. The steam after multiple through holes will get a pressure drop in the resistant expansion chamber, and the airflow will be ejected through the small holes. The sound power of the octave band has been reduced, and the frequency of the sound pressure level has been pushed up to the range above 20000 Hz, and the noise is greatly weakened, but the secondary noise of some frequencies needs to be further muffled. We install a resistive absorption outside the expansion The acoustic cotton structure is designed according to the spectral characteristics of the residual noise emitted by the pressure reducing body to effectively absorb the residual noise.

3. SPECIFICATIONS LIST


TYPEMODELMUFFLER PARAMETERSBOILER PARAMETERS
Steam discharge
t/h
Noise reduction dB(A)Discharge pipe mmCapacity t/hSteam pressure  MPaSteam temp.  ºC



Medium pressure
PB39-35/1010




40
φ57×3.535




3.92





450
PB39-35/1515φ57×3.535
PB39-65/2020φ76×465
PB39-75/2525φ89×4.575
PB39-100/3535φ108×4.5100
PB39-130/3030φ89×4.5130
PB39-130/4040φ108×4.5130
PB39-130/5050φ108×4.5130


Secondary high pressure
PB54-35/12.512.5



40
φ57×3.535



5.39




485
PB54-35/1515φ57×3.535
PB54-65/2020φ76×465
PB54-75/2525φ76×475
PB54-130/3232φ89×4.5130
PB54-130/4040φ89×4.5130
PB54-130/5050φ108×4.5130
High pressurePB100-220/6565


40
φ133×10220


9.90



540
PB100-220/8080φ133×10220
PB100-410/100100φ159×10410
PB100-410/125125φ159×10410
PB100-410/160160φ168×12410

Super high pressure
PB140-420/8080


40
φ133×16420


13.83



540
PB140-420/100100φ133×16420
PB140-420/125125φ133×16420
PB140-420/160160φ133×16420
PB140-670/200200φ168×16670
PB140-670/250250φ168×16670

Sub critical
PB170-1025/160160


40
φ133×181025
16.76

540
PB170-1025/200200φ133×181025
PB180-2050/250250φ168×182050
18.23

540
PB180-2050/315315φ194×182050
PB180-2050/400400φ219×202050

 

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