Novel buffer impedance type silencer

Abstract

The invention relates to the field of mechanical equipment, can be used for absorbing and reducing noise quite well according to high frequency and low frequency in the noise respectively, and particularly relates to a novel buffer impedance type silencer, which comprises an expanded silencing chamber, wherein one end of the expanded silencing chamber is provided with an air inlet pipe; the other end of the expanded silencing chamber is provided with an air outlet pipe; baffle plates are arranged on a surface, which is perpendicular to the centerline of the air inlet pipe, in the expanded silencing chamber; a V-shaped buffer plate is arranged between the baffle plates and an air inlet opening; the baffle plates are provided with insert pipes; the insert pipes are provided with shock damping holes and flow decreasing holes; the insert pipes are also provided with sound absorbing layers; the centerlines of the insert pipes and the air inlet pipe as well as the expanded silencing chamber are the same; four groups of baffle plates are arranged in the expanded silencing chamber; each group of baffle plates comprises four baffle plates; all the four baffle plates are provided with the insert pipes; the four baffle plates equally separate the expanded silencing chamber into four same sector chambers by using the centerline of the expanded silencing chamber as a center; a stiffening ring is arranged between the baffle plates and the inner wall of the expanded silencing chamber. The novel buffer impedance type silencer which is provided by the invention is simple in structure and wide in application, and the noise can be absorbed and reduced according to the high frequency and the low frequency in the noise respectively.

Description

technical field [0001] The invention relates to a mechanical device, in particular to a novel buffer impedance type muffler. Background technique [0002] With the rapid development of agricultural machinery and the large-scale promotion of mechanized agricultural production, environmental pollution has also followed, and noise pollution is one of them. Agricultural machinery will make a lot of noise during operation. Generally, in addition to the noise generated by the chain drive and the engine or motor, the exhaust emission of the engine will also produce a lot of noise, and it is far more noisy than the chain drive and engine. The noise is large and has become the main source of noise in agricultural mechanized production. During the harvest season, the weather is often relatively dry. The layout of the muffler is generally in the lower part of the machine chassis, which is easy to cause fires caused by dry materials, such as harvesting machinery. Therefore, how to red...

AI Technical Summary

Problems solved by technology

Exhaust gas emitted by traditional diesel engines will produce strong noise during their working process. Most diesel engines are equipped with mufflers, and mufflers are a device that prevents sound transmission and allows airflow to pass through. It is an important measure to eliminate aerodynamic noise. , the muffler is installed on the airflow channel of aerodynamic equipment (such as blower, air compressor, boiler exhaust, generator, water pump and other equipment with high exhaust noise) or in the intake and exhaust system to reduce noise. device; the function of the muffler is to absorb the strong noise generated by the exhaust gas, so as to eliminate and reduce the impact of the noise on the environment. The structure and working principle of the device itself have not changed

None of the existing mufflers can absorb and reduce noise well according to the high frequency and low frequency in the noise

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