Air exhaust muffler

Introduction to Air Discharge Silencer:

The air exhaust muffler can meet the noise reduction requirements of various sizes of boilers for air exhaust, safety valve exhaust, and boiler air supply fans. It is also used for boiler steam emissions and other gas emissions in industries such as petroleum, chemical, metallurgical, and textile, to meet the noise standards of industrial enterprises. The following are the requirements:

1. The exhaust steam suppressor is used for air discharge, and the exhaust muffler is used for air discharge, which has a large consumption capacity and can reach 20-25 decibels; The venting muffler can reach 15-20 decibels.

2. Small in size, lightweight, easy to install, and easy to maintain.

3. The XYQ series uses high-quality stainless steel or carbon steel for the cylinder body, which has sufficient strength and corrosion resistance.

4. Can fix and absorb the vertical and horizontal thermal displacement of the exhaust pipe, so that the exhaust pipe is not affected by the installation of the muffler

And under additional loads, the safety of the exhaust pipeline under thermal energy operation is ensured. Overheated steam emission muffler, saturated steam emission muffler, compressed gas emission muffler, F-type vent exhaust muffler

-Purpose and production of exhaust muffler---

The safety valve exhaust muffler is mainly used in industries such as power, chemical, metallurgy, etc. - to eliminate high-temperature and high-pressure steam emissions from safety valves, PCV valves, and exhaust valves.

For boiler safety valves and exhaust valves, they can be seen as components of the pipeline. After internal acoustic treatment, the generation and transmission of noise can be reduced, resulting in a noise reduction of 20-30 decibels (A sound) at the outlet, and a corresponding reduction of over 60% in loudness, which is subjective and effective. When designing a safety valve exhaust steam eliminator, the following three aspects should be considered:

1. After elimination, excessive noise should be avoided, and the amount of elimination should meet the requirements of the Industrial Enterprise Noise Hygiene Standards.

2. Fire extinguishers should be rust proof, anti clogging, high temperature, high pressure, and high airflow resistant.

3. The emission and blockage ratio of the fire extinguisher should be suitable for the smooth discharge of the safety valve exhaust airflow.

2： Principle of air discharge eliminators

The air exhaust muffler adopts the principle of through-hole spraying and resistance, which replaces the micro hole perforated plate type with a large hole expansion and flow control. The principle of ensuring smooth exhaust of the safety door on the structure, layered perforation sound absorption, and combined with the principle of resistance and elimination, allows steam sound waves to enter several small holes of the sound-absorbing material, causing molecular vibration of the porous material, and converting sound energy into heat energy to overcome frictional resistance and viscous force, That is to say, it has achieved the goal of rational consumption and ensured the smooth elimination of steam.

3： Consumer ordering and selection

When ordering silencers, the following information must be provided:

(1) Exhaust volume - low (T/h), start-up pressure, temperature.

(2) Outer diameter and wall thickness of exhaust pipe;

(3) Conclusion - Small hole type or anti spray composite type can be selected- Ordinary users can choose a composite type consumer, which is made of stainless steel inside and carbon steel shell material; Welding or flange docking can be selected for takeover; The supporting legs can be selected as leg or ear type knots;

4： Specification and model of air exhaust muffler

Example of model: AD-205/1.61-15

A - Exhaust steam eliminator D - Exhaust steam pressure 205- Steam temperature 1.61- Safety valve opening pressure 15- Exhaust steam volume

Regular model

Honeycomb muffler

Honeycomb silencers can meet certain noise treatment requirements in the application process. Honeycomb silencers belong to a type of fan silencers, because the honeycomb structure of honeycomb silencers is helpful for reducing noise.

micropore muffler

A small hole muffler has low frequency broadband noise reduction energy, a small aperture can improve the sound absorption coefficient, a low porosity can increase the width of the sound absorption frequency band, and an orifice plate can change the position of the resonant sound absorption peak. Small hole silencers have strict design, wide absorption frequency band, low resistance loss, high temperature, and long length.

squirting Air extractor

Air cooler tube replacement

The Air cooler adopts finned tube material, single metal finned tube and bimetallic composite finned tube. The single metal finned tube is rolled from aluminum tube as a whole, with contact thermal resistance, high strength, thermal and mechanical vibration, thermal expansion energy, and considerable expansion heat transfer surface.

water jet Air ejector

Spiral buffer type water jet Air pump: - type high single channel, spiral channel energy-saving water jet Air pump is an energy-saving product designed for condenser vacuum and other equipment vacuum. The energy-saving water jet Air extractor is used for vacuuming the condenser of the steam turbine unit in thermal power plants and other equipment that requires vacuuming.

Oil fume exhaust device

The fans of the oil fume exhaust device are all horizontal structures, and there is a dynamic seal between the impeller shaft and the volute. Oil accumulates at the bottom of the volute, and the oil between the impeller shaft and the volute is tight. The oil fume exhaust device is suitable for thermal power plants, except for applications on the main oil tank and bearing box of 6MW~800MW steam turbines.

Portable constant velocity fly ash sampler for regular coal powder sampling on the Air and coal powder pipeline

The portable constant velocity fly ash sampler produced by Lianyungang Lingdong Electromechanical Equipment Co., Ltd., also known as the fly ash constant velocity sampler or the swirling fly ash constant velocity sampler,

Stainless steel muffler

Classification of stainless steel silencers (steam emission stainless steel silencers, steam emission stainless steel silencers, exhaust stainless steel silencers, exhaust stainless steel silencers, boiler fire exhaust stainless steel silencers, boiler fire exhaust stainless steel silencers, etc.).

Air cooler

The Air cooler is mainly used for the purpose of power plant steam turbine generator units and electric motors - closed circuit ventilation cooling. The Air cooler can cool the medium (water, steam) after heat absorption, so as to facilitate the circulation of the medium. The working condition of the Air cooler directly affects the output power and resistance to load fluctuations of the motor.

Electronic version of the oil fume exhaust device product manual