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Fluid pulsation eliminating and noise reducing device for liquid transportation pipeline

An infusion tube and fluid technology, which is applied in the field of pulse reduction and noise reduction devices, can solve the problems of greater difficulty in liquid noise reduction and less practical application of mufflers, and achieves the effect of improving performance and compact structure.

Inactive Publication Date: 2011-10-26
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mufflers are widely used in gas pipelines, and their practical application and theoretical induction are quite mature, but the practical application of mufflers for liquid media is less; because the density of liquid is higher than that of gas, it is possible to achieve liquid muffler in a limited space on a ship more difficult

Method used

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  • Fluid pulsation eliminating and noise reducing device for liquid transportation pipeline
  • Fluid pulsation eliminating and noise reducing device for liquid transportation pipeline
  • Fluid pulsation eliminating and noise reducing device for liquid transportation pipeline

Examples

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Effect test

Embodiment 1

[0035] Embodiment 1, figure 1 Provided is a pulse elimination and noise reduction device for infusion pipeline fluid, which includes an inlet round tube 1, an outlet round tube 2, and a sleeve 3. The diameter of the inlet round tube 1 is equal to the diameter of the outlet round tube 2; The amount of noise reduction increases with the increase of M. According to the influence of the general layout of the structural design, the inner diameter of the sleeve 3 is generally twice the inner diameter of the inlet pipe 1.

[0036] The part of the inlet pipe 1 extends into the sleeve 3, the inlet pipe 1 and the left end surface of the sleeve 3 are fixedly connected by the flange 6, and a sealing ring 61 is arranged between the flange 6 and the left end surface of the sleeve 3, Thereby, the fixed connection between the inlet circular pipe 1 and the left end surface of the sleeve 3 is realized.

[0037] The part of the outlet pipe 2 extends into the sleeve 3, and the outlet pipe 2 and...

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Abstract

The invention discloses a fluid pulsation eliminating and noise reducing device for a liquid transportation pipeline. The device comprises an inlet circular tube (1), an outlet circular tube (2) and a sleeve (3), wherein part of the inlet circular tube (1) extends into the sleeve (3) and is hermetically and fixedly connected with the left end face of the sleeve (3), part of the outlet circular tube (2) extends into the sleeve (3) and is hermetically and fixedly connected with the right end face of the sleeve (3); an elastic airbag (4) is arranged on the inner wall of the sleeve (3), a gaseous core (5) which is communicated with the inner cavity of the elastic airbag (4) is arranged on the elastic airbag (4); and micropores I (8) are distributed on the side wall of the inlet circular tube (1) positioned in the sleeve (3), and micropores II (10) are distributed on the side wall of the outlet circular tube (2) positioned in the sleeve (3). The device provided by the invention has a compact structure and also can be used for achieving continuously adjustable structure resonant frequency, thus the device can be used for effectively weakening the broadband fluid pulsation and noise.

Description

technical field [0001] The invention relates to a pulse elimination and noise reduction device for infusion pipelines, which is suitable for pulse elimination and noise reduction in pipelines transporting liquid media in various ships, aviation and other industries under limited space. Background technique [0002] The load effect of the power source on the flight control system and landing gear of the aircraft needs to be completed through the hydraulic system; the ship is full of infusion pipelines such as seawater pipes and extrusion pipes, and many of them are directly connected to the power equipment. In the above-mentioned infusion pipeline, the periodicity and unbalance of the hydraulic pump induce flow and pressure pulsation in the pipeline, and the flow and pressure pulsation is the main cause of pipeline vibration and noise. The low-frequency pipeline vibration noise transmitted through the infusion pipeline and the high-frequency noise of fluid turbulence in the p...

Claims

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Application Information

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IPC IPC(8): F16L55/033F16L55/052
Inventor 吴大转许伟伟王乐勤戴维平
Owner ZHEJIANG UNIV
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