Liquid-filled pipeline silencer

A technology of liquid-filled pipelines and mufflers, which is applied in the direction of sound-generating devices, instruments, pipe components, etc., can solve problems such as large installation space, achieve the effect of reducing impact and expanding the scope of application

Pending Publication Date: 2021-12-10
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a liquid-filled pipeline muffler, which is used to solve the defect that the low-frequency liquid-filled pipeline muffler used in the liquid-filled pipeline requires a large installation space in the prior art

Method used

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  • Liquid-filled pipeline silencer

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] Such as figure 1 As shown, the present invention provides a liquid-filled pipeline muffler, including: a main pipeline 1, a cavity 5, at least two branch pipes and at least two regulating valves. The first end of the main pipeline 1 is used to communicate with the filling pipeline, and the second end of the main pipeline 1 and the cavity 5 are communicated through branch pipes, and at...

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Abstract

The invention provides a liquid-filled pipeline silencer. The liquid-filled pipeline silencer comprises a main pipeline, a cavity, at least two branch pipes and at least two adjusting valves, wherein the first end of the main pipeline is communicated with a liquid-filled pipeline; the second end of the main pipeline is communicated with the cavity through the branch pipes; at least one adjusting valve is mounted on each branch pipe; the lengths of the branch pipes are different; the at least two branch pipes comprise a first branch pipe; and the first branch pipe is provided with a spiral section. According to the liquid-filled pipeline silencer, the first branch pipe provided with the spiral section is arranged; the mounting space needed by the first branch pipe is reduced while the length of the first branch pipe is extended; and the noise reduction frequency of the liquid-filled pipeline silencer is effectively reduced while the mounting space is reduced.

Description

technical field [0001] The invention relates to the technical field of noise control, in particular to a liquid-filled pipeline muffler. Background technique [0002] The Helmholtz resonant cavity can effectively eliminate the noise close to its resonant frequency, and the muffler based on the structural principle of the Helmholtz resonant cavity is widely used in the industrial field. [0003] Among them, in the liquid-filled pipeline, in order to achieve the elimination of low-frequency noise, it is usually necessary to set a small pipeline diameter or a large cavity volume or a long pipeline length. However, due to the limited pipeline diameter, reducing the pipeline diameter has limited influence on eliminating noise frequencies ; Setting a large cavity volume and a long pipeline length often requires a large installation space, which restricts the actual application environment. Contents of the invention [0004] The invention provides a muffler for a liquid-filled p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/033G10K11/172
CPCF16L55/033G10K11/172
Inventor 苟金澜李邦明柯汉兵肖颀魏志国王瑞奇王俊荣李勇
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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