a damping valve

Abstract

A vibration reducing valve is designed to reduce vibration and eliminate cavitation. The vibration reducing valve comprises a left valve body (1) and a right valve body (12), a spring (3) is installed to support a valve base foundation ring (4), a valve base (5) is installed in the valve base foundation ring (4) and tightly attached to a spiral flow guiding ball (15), distance rings (17) are installed in a flow pass of the left valve body (1) and a flow pass of the right valve body (12) and used for fixing an equal-lead-angle spiral flow guiding pipe (2) in the left valve body (1) and fixing a variable-lead-angle spiral flow guiding pipe (11) in the right valve body (12), and the other ends of the equal-lead-angle spiral flow guiding pipe (2) and the variable-lead-angle spiral flow guiding pipe (11) are abutted against the valve base foundation ring (4); the spiral flow guiding ball (15) is installed in a middle valve body (10), supported by a lower valve rod (14) and a lower valve cover (16) and connected with an upper valve rod (7) and rotates along with the upper valve rod (7).

Description

technical field [0001] The invention relates to a valve pipe fitting, in particular to a damping valve. Background technique [0002] In the prior art, the pulsation caused by the turbulent flow caused by the increase of the fluid velocity inside the pipeline will cause the vibration of the pipeline and related components, and in severe cases, the connection position and components will be damaged. Therefore, in addition to controlling the operating parameters to avoid pipeline flow pulsation , Pipeline shock absorbers and hydraulic dampers are also used. The principle is to use damping and vibration reduction. While increasing equipment investment, the flowing energy is also attenuated, which increases energy consumption. In addition, while the liquid saturated medium is being transferred, the pressure drop during the flow process will cause cavitation. The existing method mainly uses more and lower pressure to reduce the pressure difference to achieve the purpose of weaken...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the pulsation caused by the turbulent flow caused by the increase of the fluid velocity inside the pipeline will cause the vibration of the pipeline and related components, and in severe cases, the connection position and components will be damaged. Therefore, in addition to controlling the operating parameters to avoid pipeline flow pulsation , pipeline dampers and hydraulic dampers are also used. The principle is to use damping and vibration reduction. While increasing the investment in equipment, it also makes the flowing energy attenuate, which increases energy consumption.

In addition, while the liquid saturated medium is being transferred, the pressure drop during the flow process will cause cavitation. The existing method mainly uses more and lower pressure to reduce the pressure difference to achieve the purpose of weakening the cavitation phenomenon, but it is necessary to increase the corresponding device, and the structure is complex, the energy attenuation is serious, which increases the energy consumption

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