Embedded general silencing device for natural gas pipeline

A technology of natural gas pipelines and noise reduction devices, which is applied in the direction of pipe components, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of pipe body deformation, too long slits, etc., achieve general purpose and reduce physical and mental health problems Influence, the effect of meeting the requirements of the noise environment

Inactive Publication Date: 2013-07-24
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the disadvantage is that the slit is too long, which wil...

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  • Embedded general silencing device for natural gas pipeline
  • Embedded general silencing device for natural gas pipeline

Examples

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Embodiment Construction

[0024] Embodiment. The specific embodiment of the present invention is described with this example and the present invention is described further. This example is an experimental prototype, its composition is as follows Figure 1-Figure 2 shown.

[0025] The structure of this example is as follows Figure 1-Figure 2 As shown, the muffler device is welded together by a flange piece 1, a muffler outer tube 2, a muffler inner tube 3, a head 5 and a streamlined fairing 6. The air flow first enters the muffler inner pipe 3 through the air delivery hole 7 on the flange plate 1, enters the muffler outer pipe 2 through the slit 4 on the inner pipe wall, and then flows out through the slit 4 on the pipe wall, and the outer The sweeping streamlined fairing 6 flows to the downstream of the gas pipeline. There are 0.5mm wide slits 4 along the axial direction evenly distributed around the pipe walls of the silencing outer pipe 2 and the silencing inner pipe 3, and the number of the slits ...

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Abstract

The invention discloses an embedded general silencing device for a natural gas pipeline, which relates to the technical field of pipeline systems. The embedded general silencing device is formed by welding a flange sheet (1), a silencing outer tube (2), a silencing inner tube (3), a sealing end (5) and a streamlined fairing (6), wherein after one end of the silencing inner tube (3) of the sealing end (5) is sleeved in the silencing outer tube (2) provided with the streamlined fairing (6), the silencing outer tube (2) and the silencing inner tube (3) are fixedly connected with the flange sheet (1). According to the embedded general silencing device, the pneumatic noise of the natural gas pipeline can be controlled within the national standard, and the conveying of the pipeline is not influenced.

Description

technical field [0001] The invention relates to a built-in universal muffler for natural gas pipelines. It relates to the technical field of piping systems. Background technique [0002] The aerodynamic noise existing in the natural gas pipeline station is mainly generated by pressure regulating valves, manifolds, and pipe diameter reduction. The pressure regulating valve used in the pipeline is the main source of noise. For the pressure regulating valve with its own noise reduction device, most of the noise can meet the requirements, but the noise generated by the ordinary pressure regulating valve without noise reduction device can reach more than 100dB in field measurement. . The noise after the pressure regulating valve is mainly caused by the turbulence and eddy current after the conveyed gas passes through the valve port of the pressure regulating device, that is, the interaction between the turbulent fluid and the pressure regulating device or the inner surface of t...

Claims

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Application Information

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IPC IPC(8): F16L55/033
Inventor 冯伟苗青熊辉李建廷管湘芝王玉彬刘焕文黄薇薇李其抚支树洁王禹钦杨合平王耀忠尹克江项中超孙超桑洪波康阳薛向东赵佳丽西敬军
Owner PETROCHINA CO LTD
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