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A pulse generating device

A technology for generating devices and drive shafts, which is applied in structures involving fluid transmission in the mechanical industry and in the chemical industry, which can solve the problems of high cost of mechanical seals, difficulty in achieving sealing effects, and affecting transmission efficiency, etc., and achieve compact structure and low fluid pulsation frequency. Adjustment, pulsation amplitude stabilization effect

Active Publication Date: 2015-09-30
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current swirl pump mainly adopts mechanical seal and stuffing seal in the shaft seal. The stuffing seal currently used is generally difficult to achieve the sealing effect, and the use cost of the mechanical seal is high, which affects the transmission efficiency.

Method used

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Embodiment Construction

[0017] The structural principle and working principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, the pulsation generating device of the present invention includes a base 1, an inlet flange 5, an inlet end cover 2, a housing 10, an outlet flange 9, a support frame 17, a bearing end cover 18, a drum 6, a drive shaft 21 and a right end Cover 22.

[0019] Among them, the support frame 17 is fixed on the base 1 by screws, and the housing 10 is fixed on the support frame 17 by bolts; the inlet end cover 2 and the housing 10 are connected by bolts, and the inlet flange 5 is connected to the inlet end cover 2 by bolts. Connected; the outlet flange 9 is connected to the housing 10 through bolts; the first annular sealing ring 4 is placed between the inlet flange 5 and the inlet end cover 2, and the second annular sealing ring 7 is placed between the housing 10 and the inlet end cover 2 ...

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Abstract

The invention discloses an pulsation generating device. A rotary drum is accommodated in a shell and driven by a drive shaft to rotate, so that fluid flows along a cavity in the rotary drum and flows out from a discharge flange when an outlet of the rotary drum is rotated to be uniform with an outlet of the shell, and then the fluid with specific pulsation frequency. The pulsation generating device is compact in structure, convenient to demount and firm and reliable in sealing device, the pulsation frequency of the fluid is adjustable and pulsation amplitude is stable, and then intensity and frequency of vibration and radiation noise generated by pulsation fluid can be controlled.

Description

technical field [0001] The invention relates to the structural technical field of fluid transmission in the chemical industry and machinery industry, in particular to a pulsation generating device. Background technique [0002] At present, most of the power equipment in the chemical and mechanical industries use electric pumps or gasoline engine pumps as the driving force, and the pump will cause unstable pressure pulsations in the fluid in the pipeline during operation, and the pressure pulsation of the fluid will cause the pipeline Vibration has a great impact on the safety of pipelines and equipment. At the same time, the turbulent state of the fluid will generate strong noise in the pipeline. These noises will spread and radiate along the pipeline, which is very harmful to the concealment and safety of the ship, and also affects the normal operation of other equipment. Studying the influence of unstable pressure pulsation in the pipeline on the noise propagation in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/66
Inventor 吴大转陈一伟戴维平许伟伟
Owner ZHEJIANG UNIV