A method for reducing noise, reducing vibration and saving energy by boiling in nucleated pool

Abstract

The invention discloses a nucleate pool boiling noise reduction, vibration reduction and energy saving method. According to the method, by measuring the sound absorption coefficients and the heat conduction coefficients of porous materials, a user selects individual parameters and the proper porous materials to be added to the bottom of a boiling pool, and accordingly the purposes of reducing noise, absorbing noise, reducing vibration, intensifying heat transfer, saving energy and reducing emission are effectively achieved through the abundant pore structures of the porous materials. According to the method, the porous materials are added into the boiling pool and make tight contact with the bottom heating surface; on the basis of the surface characteristic of the porous materials, the contact angle of boiling bubbles and the wall is decreased, the bubble departure diameter is decreased, and accordingly the cavitation noise in the boiling process is lowered; on the basis of the abundant pores of the porous materials, the mechanical energy of vibration is converted into heat energy through reflection of sonic vibration, and accordingly vibration reduction and noise absorption are achieved; and by means of the complex internal structure of the porous materials, gasification cores are increased, disturbance is enhanced, heat transfer is intensified, and therefore energy saving and emission reduction are achieved.

Description

【Technical field】 [0001] The invention belongs to the fields of fluid mechanics, bubble dynamics and heat transfer, and relates to a method for reducing noise, vibration and energy saving of nucleate pool boiling. 【Background technique】 [0002] Nucleate pool boiling is a heat transfer process with important industrial applications. In this process, cavitation noise is generated due to a series of complex processes such as nucleation, growth, merger, and collapse of bubbles. This phenomenon firstly brings noise pollution to the environment; secondly, it produces mechanical vibrations, causing potential safety hazards to equipment; in addition, in terms of heat transfer, due to the limitation of the heat transfer surface area of ​​the smooth wall, it is not conducive to rapid heat conduction. At present, there is no effective solution to this problem. 【Content of invention】 [0003] The purpose of the present invention is to solve the above-mentioned problems in the prior ...

AI Technical Summary

Problems solved by technology

This phenomenon firstly brings noise pollution to the environment; secondly, it produces mechanical vibration, which causes safety hazards to the equipment; in addition, in terms of heat transfer, due to the limitation of the heat transfer surface area of ​​the smooth wall, it is not conducive to rapid heat conduction

Currently, there is no effective solution to this problem

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