Reform of Mechanical Shaft Sealing Self-Flush System of Petrochemical Hot Oil Centrifugal Pump

Yan Liu; Jie Long Ren; Hui Cao

doi:10.4028/www.scientific.net/AMM.331.106

Paper Titles

Numerical Analysis of the Performance of Dual-Tank with Movable Baffle for Heat Pump Water Heater
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CFD Analysis and Experimental Verification of Multi-Stage Centrifugal Pump with Multi-Outlet Options
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Failure Analysis and Transformation of Hydrogen Compressor Dry Gas Seal
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Cause Analysis and Processing of Propylene Gas Compressor Bearing Vibration
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Reform of Mechanical Shaft Sealing Self-Flush System of Petrochemical Hot Oil Centrifugal Pump
p.106

Stress Calculation of a Spherical Tank on Settled Ground Based on FEM
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Stress Calculation of Pillars in Spherical Tank on Settled Ground
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A Reformative Simulation Method of Motor Pole Core Vibration Characteristics
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Structure Optimization Design of Axial Flow Check Valve
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 331Reform of Mechanical Shaft Sealing Self-Flush...

Reform of Mechanical Shaft Sealing Self-Flush System of Petrochemical Hot Oil Centrifugal Pump

Abstract:

Mechanical seal leakage of centrifugal pumps (especially hot oil pumps) is the main fault reason of the petrochemical equipments. The fuction of the sealing flush system is to maintain the mechanical shaft seal function correctly. The misconduct of flush system settings will directly lead to the failure of mechanical seal. In this paper, the problems are analyzed for the present mechanical seal flushing system. When the centrifugal pump is in a standby state, flushing system may not provide normal flush flow in self-flush plan. This may lead to surface fouling of the hot mechanical shaft seal, resulting in seal failure. Our research focus on solving these problems. The way is to change the source of flush fluid, that is to change the flush plan to external flush plan or toChange the fluid pipe position.