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Analysis and test verification of leakage mechanism for mechanical seal in turbopump(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2018年04期
Page:
73-77
Research Field:
测控与试验
Publishing date:

Info

Title:
Analysis and test verification of leakage mechanism for mechanical seal in turbopump
Author(s):
ZHANG Feng;  Yang Dayu;  LI Zhengda;  SONG Yong;  WANG Liang
Xi'an Aerospace Propulsion Institute,Xi'an 710100, China
Keywords:
turbopump of engine;  mechanical seal;  graphite material;  leakage mechanism of sealing;  sealing performance
PACS:
V434+.21-34
DOI:
-
Abstract:
For the turbine pump of a liquid propellant rocket engine, the mechanical seal failure appeared in the test process was analyzed and the mechanism of mechanical seal leakage was investigated in this paper. Through the N2O4 medium running test, the leakage reasons of mechanical seal were analyzed in two aspects of the physical properties and the organization structure of graphite material. The test results demonstrate that the thermal conductivity of graphite and ring material plays a key role in sealing performance.

References:

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Last Update: 1900-01-01