Multiply line spectrum variable frequency fluid pipe silencer

Abstract

The invention provides a multiply line spectrum variable frequency fluid pipe silencer, comprising an inner pipe and an outer pipe, wherein the inner pipe and the outer pipe are connected through three rib plates; the area between the inner pipe and the outer pipe is divided into three resonant cavities with volumes different from one another by three clapboards with different included angles; each resonant cavity is provided with a rotary block regulating mechanism; the rotary block regulating mechanism is fixedly connected with a link mechanism by a locating pin; and the rotary block regulating mechanism comprises a regulating pipe arranged on an inner pipe wall and a rotary regulating block arranged in the regulating pipe, and the rotary regulating block is fixed with a regulating block baffle via a locating flange so as to enable the rotary regulating block not to move horizontally and vertically but to rotate around a rotary shaft. The multiply line spectrum variable frequency fluid pipe silencer used for pipeline noise has strong control operability and obvious silencing effect, thus lowering the noise control period, reducing the control cost, and improving the working efficiency.

Description

technical field [0001] The invention relates to a liquid-filled pipeline muffler, in particular to a variable-frequency liquid-filled pipeline muffler. Background technique [0002] The vibration and noise of the liquid-filled pipeline system will not only have a great negative impact on the noise level of the ship, but also reduce the working reliability of the pipeline itself. In order to effectively control the vibration and noise of the water pipeline, installing a water muffler in the pipeline is the best application A broad and effective method. The anechoic frequency band and anechoic performance of the traditional fixed-parameter muffler are determined, however, the operating conditions of the pump are often changed, and the noise frequency of the liquid-filled piping system also changes accordingly. When the noise frequency in the liquid-filled pipeline system changes and exceeds or falls below the anechoic frequency band of the fixed-parameter muffler, the fixed-p...

AI Technical Summary

Problems solved by technology

The anechoic frequency band and anechoic performance of the traditional fixed-parameter muffler are determined, however, the operating conditions of the pump are often changed, and the noise frequency of the liquid-filled piping system also changes accordingly

When the noise frequency in the liquid-filled piping system changes and exceeds or falls below the anechoic frequency band of the fixed-parameter muffler, the fixed-parameter muffler will not be able to exert its normal muffler effect

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