A silencer for psa nitrogen generator

Abstract

The invention provides a silencer for PSA nitrogen making machines. The silencer comprises an outer cylinder, an inner cylinder, a first silencing plate, a first baffle plate, an inner pipe, a plurality of deflexion vane plates and an annular sheet, wherein a rear end cover is arranged at the rear end of the outer cylinder; a connecting pipe is be arranged on the rear end cover; the inner cylinderis mounted on the rear end cover, and is located in the outer cylinder; the first silencing plate is mounted at the rear part of the inner cylinder; the first baffle plate is mounted in the middle part of the inner cylinder, and the inner part of the inner cylinder is divided into a first cavity, a second cavity and a third cavity by the first baffle plate and the first silencing plate; the rearend of the inner pipe is mounted on the first baffle plate, a plurality of strip through holes are formed in the pipe wall of the inner pipe, and through the strip through holes, the inner part of theinner pipe is communicated with the third cavity; the deflexion vane plates are uniformly arranged on the outer wall of the middle part of the inner cylinder; the annular sheet is mounted at the front end of the inner cylinder; and the sheet part of the annular sheet is located at a front opening of an annular cavity. According to the silencer for the PSA nitrogen making machines provided by theinvention, silencing is performed for several times, so that air flow noise is effectively weakened, and the environmental-friendly requirements are met.

Description

technical field [0001] The invention relates to a silencer for a PSA nitrogen generator, in particular to a silencer for a PSA nitrogen generator. Background technique [0002] PSA nitrogen production uses air as the raw material, carbon molecular sieve as the adsorbent, the principle of pressure swing adsorption, and the selective adsorption of oxygen and nitrogen by carbon molecular sieve to separate nitrogen and oxygen. It has a simple process and a high degree of automation. , fast gas production, low energy consumption, convenient operation and maintenance, low operating cost, and strong device adaptability, PSA nitrogen production has become the preferred method for medium and small nitrogen users. The PSA nitrogen generator has two adsorption and separation towers that work alternately to produce gas. Before one tower finishes working and switches to the other tower, the adsorption tower that finishes the gas production needs to exhaust the exhaust gas. This exhaust p...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a muffler for a PSA nitrogen generator, which solves the problem that the PSA nitrogen generator is noisy when exhaust gas is discharged

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