Boiler exhaust muffler (XSQ-GL)

The boiler exhaust muffler produced by our company is a noise reduction device used to control the aerodynamic noise caused by boiler exhaust to the environment. Used for noise reduction in the inlet and outlet ducts of various centrifugal and ventilation fans. It is mainly used for effective noise reduction of steam emissions from industrial boilers in power, petroleum, chemical, metallurgical, textile and other industries, and is an important measure to eliminate steam emission noise.

Principle of noise reduction:

Various types of boiler steamExhaust steamNot only does it have high temperature and pressure, but it also has a wide emission frequency bandwidth. The Glee boiler muffler is mainly based on the principle of "small hole injection" combined with impedance expansion and sound absorption. The steam emission from the boiler generally has a fast flow rate and high airflow noise, so it needs to be expanded through holes first. After passing through multiple holes, the steam is depressurized and reduced in the resistance expansion chamber. The airflow is then sprayed out through small holes, and the sound power of its frequency band has been reduced after spraying. The frequency of the sound pressure level is pushed up to above 20000Hz, and its noise is greatly weakened. Some frequencies of secondary noise still need to be further reduced. Our companyBased on the spectral characteristics of the residual noise emitted by the voltage regulatorInstall a resistive sound-absorbing cotton structure outside the expansion area to effectively absorb residual noiseSilencers can adapt to different frequencies, high temperatures, and pressures (low, medium, high, ultra-high, subcritical, supercritical),Make it meet the requirements of<<Industrial Enterprise Noise Standards>>.

Comprehensive parameters:

1. Noise reduction form: small hole injection throttling impedance composite;
2. Main material: A3、304、304L、316、316L；
3. Noise reducing materials: imported porous cotton, carbon steel, stainless steel, fiberglass;
4. Nut bolt: A3、304、304L、316、316L；
5. Sealing gaskets: Nitrile rubber gasket, PTFE gasket, high-temperature resistant PTFE gasket, metal gasket, graphite gasket;
6. Sealing surface: protruding surface (RF), flat surface (FF) Concave convex surface (MFM), tenon groove surface (TG);
7. Connection methods: flange connection, internal thread connection, external thread connection, butt welding connection;
8. Manufacturing and testing standards: GB12348-90 GB/T14623-93。

Installation instructions:
1. The muffler equipment should be installed perpendicular to the roof of the factory, and the muffler bracket should be fixed to the factory building with steel brackets.
2. To increase the wind resistance of the factory roof at high altitude, the muffler adopts a supporting support. The exhaust pipe in front of the muffler should have an expansion bend to absorb thermal expansion. If the original exhaust pipe section is already equipped with a drain valve in the vertical direction, the expansion bend can be omitted.
3. The bottom of the muffler equipment body is designed with drainage pipes or holes, and the holes should be checked for smoothness. The exhaust pipe should pass through the opening of the factory roof platform and be covered with a thin steel plate to prevent rain.
4. In principle, one safety door is equipped with one muffler. There are two types of safety doors: single seat and double seat. For the double seat type, the exhaust pipe can be merged into a main pipe and connected to the muffler during installation. However, for the double seat type safety door with a large exhaust volume, two mufflers can also be installed.
5. For small displacement silencers used for deaerators, jet type air extractors, etc., the external design is tubular and the installation is relatively simple. The muffler equipment is installed vertically along the walls and columns of the main factory building. Install steel sliding brackets on walls and columns, and install silencers and pipelines on them. The discharge outlet of the silencer equipment should face the direction of the roof. It should be noted that when using sliding bracket installation, fixed supports can be omitted.

Ordering Notice:
1. What type of thermal equipment is the target of noise reduction
2. Pipe diameter of takeover pipe (outer diameter x pipe wall thickness)
3. Exhaust volume ____T/H
4. Pressure ____Map
5. Temperature ____ ℃