A fluid dynamic noise muffler

A fluid power and muffler technology, applied in the direction of pipe components, mechanical equipment, pipes/pipe joints/fittings, etc., can solve the problems of attenuating fluid dynamic noise, achieve attenuation of fluid dynamic noise, good water noise, and suppress turbulent flow along the pipeline The effect of transmission

Active Publication Date: 2020-10-16
CHINA SHIP DEV & DESIGN CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a hydrodynamic noise muffler for the above-mentioned technical requirements. The present invention mainly solves two technical problems. Excellent noise reduction effect in a wide range of pressure and flow rate changes

Method used

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  • A fluid dynamic noise muffler
  • A fluid dynamic noise muffler
  • A fluid dynamic noise muffler

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Embodiment Construction

[0017] The embodiments of the present invention will now be described in conjunction with the accompanying drawings, and the present invention is not limited to the following embodiments.

[0018] Such as Figure 1-Figure 3 As shown, a fluid dynamic noise muffler includes a muffler housing 1, a muffler assembly and a pressure adjustment device, the muffler assembly is arranged in the muffler housing, the pressure adjustment device is connected with the muffler housing, and is connected with the muffler assembly contact;

[0019] The muffler shell is a square structure, with connecting pipes 2 on the end faces on both sides, and connecting flanges 3 on the outer ends of the connecting pipes;

[0020] The muffler assembly includes a plurality of elastic corrugated plates 4, which are stacked up and down in the muffler shell, and the peaks and troughs of two adjacent elastic corrugated plates are arranged correspondingly one by one to form a grid end face;

[0021] The pressure...

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PUM

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Abstract

The invention relates to a fluid dynamic noise muffler, which comprises a muffler housing, a muffler assembly and a pressure regulating device. Flange; the muffler assembly consists of multiple elastic corrugated plates, which are stacked up and down in the muffler shell, and the peaks and valleys of two adjacent elastic corrugated plates are set in one-to-one correspondence to form a grid end face; the pressure adjustment device includes adjusting bolts and pressure plates , the pressing plate is set on the top surface of the elastic corrugated plate in the muffler shell, the adjusting bolt passes through the screw hole at the top center of the muffler shell, the bottom end is connected with the pressure plate, and the top is higher than the top of the muffler shell, the invention has simple structure and convenient operation , which can effectively reduce the hydrodynamic noise of the ship pipeline, and achieve better noise reduction effect in a wide range of pressure and flow velocity changes.

Description

technical field [0001] The invention belongs to the technical field of ship pipeline vibration and noise control, in particular to a fluid dynamic noise muffler. Background technique [0002] There are many equipment, pipelines, and valves involved in the naval seawater system, and the configuration is extremely complicated. The hydrodynamic noise generated by noise sources such as equipment, pipelines, and valves in the system will flow outward from the sea port with the suction and discharge of seawater. Radiation is one of the main sources of underwater radiated noise of ships, which directly affects the concealment of ships. [0003] At the same time, due to the wide range of parameters of the working medium of the seawater system, considering the diving depth, the pressure range may range from a few tenths of MPa to several MPa, and considering different working conditions, the flow rate may range from a few tenths of meters per second to several Ten meters per second,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/033
CPCF16L55/0336F16L55/0338
Inventor 龚强吴崇建徐鑫彤杨荣陈乐佳
Owner CHINA SHIP DEV & DESIGN CENT
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