1Exhaust mufflerPurpose:

Exhaust silencers are mainly used for effective noise reduction of steam and gas emissions from power, chemical, metallurgical, mining, textile, and industrial boilers. The exhaust muffler is composed of multiple stages of cylinders with different diameters. The exhaust gas passes through the first and second expansion and pressure reducing bodies of the inner cylinder before passing through the outer cylinderThe acoustic shell with uniformly distributed small holes emits independent air jets into the atmosphere. Suitable for steam equipment exhaust and noise reduction in many thermal systems such as boilers, steam turbines, steam generators, steam pipelines, etc.

IIExhaust mufflerFeatures:

1、Exhaust muffler

    To suppress the noise emitted by high-pressure steam flow, this type of muffler system is designed based on the principles of anti noise, spray noise, and anti noise. After passing through a controlled flow in the muffler, the gas enters the pressure reducing body and undergoes a large volume expansion to form a low-pressure airflow before being ejected. During this process, some of the internal energy in the steam flow is converted into sound energy of a certain frequency. Although the noise power is greatly reduced, it often remains higher than the standard value due to factors such as exhaust deviation from the design value. For this purpose, a double-layer structure soundproof cover was designed outside the pressure reducing body, which was designed based on the spectral characteristics of the residual noise emitted by the pressure reducing body to effectively absorb the residual noise. After the user installs as required, the total noise reduction can reach35-60 decibels.

2、Exhaust muffler

    For gas emission devices, the exhaust should not only avoid excessive noise, but also allow the steam flow to be smoothly discharged. Therefore, the commonly used multi-stage throttling and small hole injection noise reduction methods are not suitable. This limitation has always been a design difficulty for exhaust mufflers and the reason for poor exhaust noise reduction effect. The muffler of this exhaust also adopts the principle of noise reduction through resistance, spraying, and blocking, in which a large hole expansion is used instead of a smaller diameter control hole, which further enhances the noise reduction effect through resistance, spraying, and blocking in structure, achieving the noise reduction effect. 

3. Low pressure exhaust systemSound device（TD type)

    Various industrial and mining enterprises use a large amount ofLow pressure boilers with a pressure of 0.13MPa and below also have a large number of low-pressure thermal devices in the power plant thermal system, such as back pressure steam turbines, deaerators, auxiliary air extractors, steam turbine oil pumps, continuous and periodic boiler discharge, etc. The exhaust pipes of the above equipment require the installation of lightweight and more convenient mufflers. Our company designs mufflers for different noise reduction targets that can meet the requirements of users.

3、 Ordering Notice:

1. Object of use (such as boiler ignition exhaust, safety valve exhaust, fan, deaerator exhaust, etc.).

2. Boiler evaporation capacity, steam pressure, and temperature.

3. Emission rate: t/h.

4. Original interface diameter and wall thickness.

5. As long as the technical parameters provided by the user are complete, our company can design and produce any type on behalf of them. Specification of muffler.

4、 Installation precautions:

(Detailed user manual is included in the packing information during supply)

Instructions:1. When the specifications of the user's exhaust pipe do not match the table, the external dimensions will change;

2. There are various types of steam discharge objects for thermal equipment, and our factory will design according to the exhaust volume, steam pressure, and pipe size requested by the user

The standard specifies the emission limits and measurement methods for environmental noise at the boundary of industrial enterprises and fixed equipment factories(See Table 1)    Unit db (A)

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Safety Production Standardization Certificate Number:AQBJXXW202100026

quality management system (GB/T19001-2016 idt ISO9001:2015)Certification certificate:25021Q10338R0S

High tech Enterprise Certificate Number:GR202332017985

Da Shi "noise reduction equipment, payment will be made after installation is qualified!

Welcome to inquire by phone

mobile phone17511412888(Manager Li)

mobile phone17312347708

Email：dashijixie@126.com

Address: Keyuan Village, Dunshang Town, Ganyu District, Lianyungang City (within the factory area of the muffler manufacturer)