Pore plate with ablative function and pipeline system

Abstract

The invention discloses a pore plate with an ablative function and a pipeline system. The pore plate with the ablative function comprises a drain hole plate body, wherein the front end face of the drain hole plate body is an upstream end face, the rear end face of the drain hole plate body is a downstream end face, a drain hole which penetrates from the downstream end face to the upstream end face is formed in the drain hole plate body, an ablative device is further arranged on the upstream end face of the drain hole plate body, the ablative device is an annular body coaxial with the drain hole, the cross section of the annular body is two right triangles with the bevel edges being inward, the bevel edges are the inner circle edge of the annular body, the right-angle edges M of the right triangles are the outer circle edge of the annular body, the right-angle edges N of the right triangles are located on the upstream end face of the drain hole plate body, and the minimum inner diameter f of the annular body is larger than the diameter R of the drain hole. Accordingly, vibration excitation force of the cavitation erosion effect on a pipeline is reduced, a conventional pore plate is changed, the ablative capacity is improved, and meanwhile the resistance characteristic of the pore plate is not changed.

Description

technical field [0001] The technology belongs to the improvement of the cavitation elimination of the throttling orifice, and involves the design of the aperture of the orifice to eliminate the vaporization in the low-pressure area behind the orifice and the elimination of the vaporization caused by the shedding of the boundary layer in front of the orifice. Through the design of the throttling orifice, the hydraulic characteristics of the working conditions and the purpose of eliminating cavitation are met. Background technique [0002] Throttle orifice plate is widely used in pipeline system because of its convenient processing and installation, which can achieve the function of adjusting pressure and flow. For example, different systems in a nuclear power plant require different pipeline pressures. In order to borrow from each other and reduce repeated construction of pipeline sections, it is often necessary to design borrowed pipelines and design throttle orifice plates ...

AI Technical Summary

Problems solved by technology

If the design of the throttle orifice is unreasonable, vaporization will occur behind the orifice of the pipeline, resulting in cavitation, high-frequency noise, and violent vibration of the pipeline, which not only deteriorates the working environment but also easily causes fatigue damage to the pipeline. a security risk

When a single-stage orifice plate cannot achieve smooth throttling, a multi-stage orifice plate design is required

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