Mufflers are widely used in power generation, chemical, metallurgy, textile and other industrial plants for the exhaust of various types of boilers, steam turbines; fans; security doors and other equipment noise reduction. What is the working principle of silencer production ? How to install it? Let's take a look at it right away.
[Muffler production work principle]
The main purpose is to use porous sound-absorbing materials to reduce noise. The sound-absorbing material is fixed on the inner wall of the air flow channel or arranged in the pipeline in a certain manner to constitute a resistive muffler. When sound waves enter the resistive muffler, part of the acoustic energy is rubbed in the pores of the porous material and converted into heat and dissipated, causing the sound waves passing through the muffler to weaken. A resistive muffler is like an electrically pure resistive circuit. The sound-absorbing material is similar to a resistor. Therefore, people call this muffler a resistive muffler. The resistive muffler has a good effect on mid-high frequency silencing and has a poor effect on low frequency silencing. (Mainly used for generator unit silencer)
[Muffler installation method]
The direction of muffler installation must be correct, and the flange connection to the air duct or fittings should be tight and secure. When the air-conditioning system is heated and the requirements are high, the muffler housing should be insulated from the air duct.
After the muffler is installed, it can be inspected by means of cable or hanging wire. If it does not meet the requirements, it should be trimmed.
After muffler installation is in place, management should be strengthened and protective measures taken. Other supports and hangers are strictly prohibited on the muffler flanges and hangers.
The muffler, muffler elbow, etc. should be installed separately, support, hanger, so that the wind pipe does not bear the weight of the hanger should be based on the muffler model, specifications and building structure, in accordance with the provisions of the national standard or design drawings selected.
Before installing the muffler, it is necessary to check whether the positions of the fixtures such as the support and the hanger are correct, and whether the embedded component or expansion bolt is firmly and reliably installed. Branches and hangers must ensure the load they bear.
The type and size of the muffler must meet the design requirements and indicate the direction of airflow.
ã€Muffler must pay attention to some points in the use process】
1. The resistive muffler has the characteristics of absorbing medium and high frequency sounds, and is simple in processing and manufacturing. It is generally used in air-conditioner blowers, compressors, gas turbines, blowers and other blower fans.
2. The resistance muffler has strong pertinence, has a significant effect on low-frequency sound absorption, and does not require sound-absorbing materials. Generally can only be used for exhaust silencing of small pipelines, such as exhaust silencers of automobiles, ships, diesel engines, etc.
3. Impedance muffler has the characteristics of noise reduction bandwidth and safety. It is mainly used for noise reduction with high sound level, but with low IF frequency broadband noise. Such as steam turbines, deaerators, expansion containers, small-displacement safety valve exhaust and so on.
Xiao Bian epilogue: The above introduced the muffler production principle for everyone and hopes to help everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
[Muffler production work principle]
The main purpose is to use porous sound-absorbing materials to reduce noise. The sound-absorbing material is fixed on the inner wall of the air flow channel or arranged in the pipeline in a certain manner to constitute a resistive muffler. When sound waves enter the resistive muffler, part of the acoustic energy is rubbed in the pores of the porous material and converted into heat and dissipated, causing the sound waves passing through the muffler to weaken. A resistive muffler is like an electrically pure resistive circuit. The sound-absorbing material is similar to a resistor. Therefore, people call this muffler a resistive muffler. The resistive muffler has a good effect on mid-high frequency silencing and has a poor effect on low frequency silencing. (Mainly used for generator unit silencer)
[Muffler installation method]
The direction of muffler installation must be correct, and the flange connection to the air duct or fittings should be tight and secure. When the air-conditioning system is heated and the requirements are high, the muffler housing should be insulated from the air duct.
After the muffler is installed, it can be inspected by means of cable or hanging wire. If it does not meet the requirements, it should be trimmed.
After muffler installation is in place, management should be strengthened and protective measures taken. Other supports and hangers are strictly prohibited on the muffler flanges and hangers.
The muffler, muffler elbow, etc. should be installed separately, support, hanger, so that the wind pipe does not bear the weight of the hanger should be based on the muffler model, specifications and building structure, in accordance with the provisions of the national standard or design drawings selected.
Before installing the muffler, it is necessary to check whether the positions of the fixtures such as the support and the hanger are correct, and whether the embedded component or expansion bolt is firmly and reliably installed. Branches and hangers must ensure the load they bear.
The type and size of the muffler must meet the design requirements and indicate the direction of airflow.
ã€Muffler must pay attention to some points in the use process】
1. The resistive muffler has the characteristics of absorbing medium and high frequency sounds, and is simple in processing and manufacturing. It is generally used in air-conditioner blowers, compressors, gas turbines, blowers and other blower fans.
2. The resistance muffler has strong pertinence, has a significant effect on low-frequency sound absorption, and does not require sound-absorbing materials. Generally can only be used for exhaust silencing of small pipelines, such as exhaust silencers of automobiles, ships, diesel engines, etc.
3. Impedance muffler has the characteristics of noise reduction bandwidth and safety. It is mainly used for noise reduction with high sound level, but with low IF frequency broadband noise. Such as steam turbines, deaerators, expansion containers, small-displacement safety valve exhaust and so on.
Xiao Bian epilogue: The above introduced the muffler production principle for everyone and hopes to help everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
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