Ball valve type pulse generator

Abstract

The invention discloses a ball valve type pulse generator. The ball valve type pulse generator comprises a valve shell and a valve ball; a channel is formed in the valve shell, and comprises a first segment and a second segment which are coaxially arranged; the diameter of the second segment is larger than that of the first segment; the valve ball is fixedly installed in the second segment; the wall of the valve shell is provided with an installing port communicated with the second segment; the installing port is provided with a valve rod; one end of the valve rod is connected with the valve ball which is provided with a round through hole; the other end of the valve rod is connected with a motor which is installed on the valve shell; and the motor drives the valve ball to rotate in the channel periodically so that the through hole can be opened and closed periodically. The ball valve type pulse generator is simple in structure, convenient to machine, capable of being directly refitted on a ball valve standard piece, high in universality and small in energy loss, and the fluid channel is a straight line.

Description

technical field [0001] The invention relates to a ball valve type pulsation generator and belongs to the field of pulsation generators. Background technique [0002] Pulsating flow is a fluid whose flow parameters such as pressure and velocity change periodically or quasi-periodically, such as human arterial blood. The fluid is very different from ordinary laminar flow fluid in terms of flow and heat and mass transfer. Pulsating flow can effectively improve the flow and heat and mass transfer effects. It has been proved by literature that pulsating flow can enhance heat transfer up to More than 20 times, the mass transfer effect is improved by several orders of magnitude. The main engineering applications of enhanced heat and mass transfer include: heat exchangers, biomedicine, chemical production, weapons and ammunition, aerospace, electronic heat dissipation, etc. [0003] A device capable of providing pulsating flow to a working process is called a pulsation generator. ...

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Problems solved by technology

However, it is difficult to process and consumes a lot of energy. The radial size of the pipe is constrained by the size of the blades, and the bevel gear in front of the blades will affect the flow state of the working fluid, which is not conducive to the generation of pulsating flow.

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