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A device for suppressing pipe wall vibration and nozzle eddy current during jet flow in a water-filled pipe

A technology for water pipes and pipes, applied in the direction of pipes/pipe joints/fittings, pipe components, mechanical equipment, etc., can solve problems such as vibration and nozzle eddy current

Active Publication Date: 2017-06-20
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a device for suppressing the wall vibration and nozzle vortex of the water-filled pipeline in order to solve the problems of the wall vibration and the nozzle vortex of the water-filled pipeline during the jet flow noise test.

Method used

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  • A device for suppressing pipe wall vibration and nozzle eddy current during jet flow in a water-filled pipe
  • A device for suppressing pipe wall vibration and nozzle eddy current during jet flow in a water-filled pipe
  • A device for suppressing pipe wall vibration and nozzle eddy current during jet flow in a water-filled pipe

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Embodiment Construction

[0017] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0018] combine Figure 1 to Figure 5 , a device for suppressing the vibration of the pipe wall and the eddy current of the nozzle when the water-filled pipeline is jetted, including the water-filled pipeline 1, the vibration damping box 2, the nozzle clamp 3, the baffle 4, and the two vibration damping boxes 2 are a group of The studs 22 and nuts 23 are used to fix the body of the water-filled pipeline 1, the nozzle clamp 3 is fixed to the vicinity of the nozzle of the water-filled pipeline 1 by the studs 32 and the nuts 33, and the baffle 4 is fixed by the bolts 41. At the mouth of the water filling pipe 1.

[0019] The water filling pipe 1 is a round stainless steel pipe with an inner diameter of 88mm, an outer diameter of 108mm and a length of 2000mm. One end of the water filling pipe 1 is connected to the jet source, and the other ...

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Abstract

The invention provides a device for inhibiting pipe wall vibration and pipe orifice eddy currents in ejection of a water filling pipe. The device comprises a vibration reducing box, a pipe orifice fixture and a barrier plate; the vibration reducing box is mounted in a pipe body position of the water filling pipe; the pipe orifice fixture is mounted in a pipe orifice position of the water filling pipe; and the barrier plate is mounted on the pipe orifice fixture by using a bolt. The device can reliably reduce the pipe wall vibration caused by such factors as impact of water currents in the pipe on the pipe wall or an elbow in the ejection of the water filling pipe, can reliably reduce the pipe wall vibration of the water filling pipe caused by such factors as water pump work, and can inhibit the generation of the pipe orifice eddy currents.

Description

technical field [0001] The invention relates to a device for suppressing pipe wall vibration and nozzle eddy current when a water-filled pipe is jetted, and belongs to the field of acoustic measurement. Background technique [0002] The underwater jet noise is generally the radiation noise generated by the interaction between the water in the water-filled pipe immersed in the water and a certain flow rate from the nozzle. However, when the water flows inside the water-filled pipe, it is affected by factors such as the inner surface roughness, elbow, and cross-sectional area change of the pipe, so that the water flow impacts the pipe wall and excites the pipe wall to vibrate, thereby generating radiated noise from the pipe wall. ;Especially when the jet source is a water pump, the huge vibration generated by the motor in the water pump during operation can easily be transmitted to the water through the pipeline. Even through vibration reduction measures, it is difficult to re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/033
CPCF16L55/033
Inventor 刘永伟商德江
Owner HARBIN ENG UNIV
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