Frequency adjustable sonic wave fluidic oscillator

An oscillator and sound wave technology, applied in the jet engineering of pressurized gas and the field of gas expansion refrigeration, can solve the problems of low refrigeration efficiency and obstacles to the popularization and application of wall-attached oscillators, and achieve the effect of low cost, high power and small volume

Active Publication Date: 2020-07-10
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both experiments and theory have shown that the frequency of the existing self-excited wall oscillators is difficult to precisely control, which leads to low cooling efficiency of the static gas wave refrigerator, and also hinders the popularization and application of the wall oscillator itself.

Method used

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  • Frequency adjustable sonic wave fluidic oscillator
  • Frequency adjustable sonic wave fluidic oscillator
  • Frequency adjustable sonic wave fluidic oscillator

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Experimental program
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Embodiment approach

[0033] A typical implementation of the present invention is as follows:

[0034] Such as figure 1 , figure 2 and image 3 As shown, a frequency-adjustable sonic jet oscillator of the present invention is mainly composed of a gas capacity adjustment mechanism 1, a flow channel extender 2, a flow channel adjustment mechanism 3, a flow channel growth adjustment channel 4, an oscillating body 5, and an upper cover 9 And accept pipe 18 to constitute. The whole machine is completely static, and adopts the structure of the combination of the sonic oscillating jet generator, the flow channel growth adjustment mechanism 3 and the receiving tube 18. The wall switching frequency is greatly changed, and then the gas capacity adjustment mechanism 1 and the flow channel adjustment mechanism 3 are combined to fine-tune the Coanda switching frequency, thereby changing the Coanda switching frequency of the jet in a large range. Each growth channel 19 needs a flow channel adjustment mechan...

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Abstract

The invention belongs to the technical field of pressure gas fluidic engineering and gas expansion refrigeration, and relates to a frequency adjustable sonic wave fluidic oscillator. The frequency adjustable sonic wave fluidic oscillator is special equipment necessary for gas refrigeration machinery. A sonic wave type oscillation fluidic generator which changes in frequency under the combined action of a flow channel regulating mechanism and a gas volume regulating mechanism and has a non-stable self-excitation characteristic is used as a fluidic distributor of the frequency adjustable sonic wave fluidic oscillator, and is a precondition for implementing a refrigerator matched with the frequency adjustable sonic wave fluidic oscillator. The frequency adjustable sonic wave fluidic oscillator is not sealed by any moving parts, has good reliability, small size, high power, and low cost, is suitable for processing a high-pressure gas medium and is applied to an expansion refrigerator, canadapt to severe working environments such as strong radiation, strong corrosion, strong vibration and strong impact, and has no electronic interference. Therefore, the frequency adjustable sonic wavefluidic oscillator can be widely used in complex working conditions such as strong radiation, strong magnetic field, flammability, and easy explosion or in pure fluid working systems.

Description

technical field [0001] The invention belongs to the technical field of jet engineering of pressurized gas and gas expansion refrigeration, and relates to a frequency-adjustable sonic jet oscillator, which is a special equipment necessary for a gas refrigeration machine. Background technique [0002] Jet components are a general term for fluid devices that use fluid as the working medium and have no movable parts. Compared with electronic device actuators, they have the advantages of good reliability, small size, high power, and low cost, and can adapt to strong radiation, strong Corrosion, strong vibration and strong impact and other harsh working environments, and there is no electronic interference. Therefore, in complex working conditions such as high radiation, strong magnetic field, flammable and explosive, or in pure fluid working systems, jet components are widely used, such as certain control systems in the nuclear industry, aerospace and other fields. At the same t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/08
CPCF25B9/08
Inventor 吾特库尔.努尔买买提刘学武张瑞丹邹久朋胡大鹏
Owner DALIAN UNIV OF TECH
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