Orifice-plate type adjustable throttle valve and manufacturing method thereof

Abstract

The invention discloses an orifice-plate type adjustable throttle valve and a manufacturing method of the orifice-plate type adjustable throttle valve. The orifice-plate type adjustable throttle valve comprises a valve body, a valve cover, a valve rod and valve plates, wherein at least one through hole 26 is axially arranged on each of two disk type valve plates 4, so that under the situation of same flow, not only the escaping volume of gas phase components in a pipeline is increased, but also dead area accumulation of dinas at the entrance of the orifice plate of the throttle valve and occurrence of cavitation erosion of the gas are reduced; most importantly, the exit of the orifice plate with a plurality of orifices is positioned at an intersectional zone of high-pressure jet, multiphase fluid forms a hedging energy consumption depressurizing area, so as to reduce internal kinetic energy of high-speed fluid and scour to the wall of the pipe, so that the service life of the throttle valve is greatly improved; for an equally grading throttling depressurizing pipeline, the orifice-plate type adjustable throttle valve can reduce throttling grade number of the pipeline to reduce the operating cost of a company. The orifice-plate type adjustable throttle valve can be widely applied in fields such as metallurgy, mine, infrastructure, wastewater treatment, and port shipping, as well as in pipelines for conveying multiphase mixed fluid in industries.

Description

technical field [0001] The invention relates to the petrochemical field, in particular to an orifice-type adjustable flow valve and a manufacturing method thereof. Background technique [0002] Throttle valves are widely used in various industries in the petrochemical field. With the country's increasing demand for energy, the annual demand for throttle valves also increases. How to improve product structure, improve product quality, and extend its use Life expectancy, reducing production costs, and expanding the scope of use of products are new issues facing the throttle valve production industry. [0003] High temperature, high pressure, and high corrosion are unique working environments in the petrochemical field. The performance and quality of throttle valves are directly related to the quality of downstream products in various industries in the petrochemical field, the survival of enterprises, and even the social environment and personal safety. [0004] working princi...

AI Technical Summary

Problems solved by technology

[0014]The traditional orifice throttle valve is designed with single-phase medium as the target. And the component is a dynamic use environment, the throttle valve is noisy, the service life is short, and the safety is poor

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