Cavitation and noise is the difference in regulator to control the high pressure fluid in two major hazards. The regulator on the noise is the main pollution sources in petrochemical production. In use in addition to the need to choose low noise of the structure of the regulator, changing the operating conditions of Industrial Valves is to eliminate or reduce the fundamental method of cavitation and noise. Regulator at work, it should be paid attention to the noise of the situation, the analysis of mechanism of noise can better monitor regulator working status and effectively deal with the issue of what had happened. ( 1) Mechanical vibration - — Such as when the horizontal motion within the sleeve valve core, can make the clearance between the sleeve and the valve core as far as possible little hard surface casing or use. ( 2) Natural frequency of vibration - — Such as valve core or other components, they all have a natural vibration frequency, and can through specialized casting or forging process to change the characteristics of the valve core, if necessary can also replace other types of valve core. ( 3) The valve core instability - — Such as due to oscillation valve core displacement caused by fluid pressure fluctuation and noise, this kind of situation is usually caused by regulating circuit of damping factors such as actuator, which can adjust the damping coefficient or again on the valve core displacement direction combined with vibration isolation facilities. ( 4) Medium mechanics liquidity - — Medium in the pipeline or flow control valve, the noises, in this case, there is no specific description of ( Cavitation can also produce noise) 。 In this paper, the keyword search: more valve technical articles mechanical valve product information
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