正压清空型集便装置的安全可靠性提升技术研究

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中图分类号：U271 文献标志码：B doi：10.20214/j.cnki.zhgdjt.2025.04.012

Study on the Technology to Improve the Safety and Reliability of the Positive-pressure Emptying Dejection Collecting Device

CHEN Jianguo，SUN Tao，YANG Bo， ZHANG Baofeng （CRRC Qingdao Sifang Locomotive&.Rolling Stock Co.，Ltd.，Qingdao 266111，China）

Abstract：Asanecessary and important facility forrail transit vehicles，thecomfort andreliabilityof toilet collection devices have a great impact on the choice of passenger travel modes and travel experience.In order to further improve the safetyand reliability of the positive-pressure emptying dejection device，through the indepth studyof the structure andcontrol principle of each component，the failure modes related to the positive pressure of each working condition are analyzed and summarized.From the two aspects of system control logic optimization and component reliability improvement，the corsponding optimization measures are taken to further improve the safety and reliability of the positive pressure empty collction device and ensure the health and safety of passengers.

Key words：dejection collcting device；positive-pressure；emptying；safety and reliability；improv

1集便装置概述

目前国内新造铁路客车和动车组的卫生间均配置有集便装置，用来收集排泄污物，避免污物直排污染沿线环境。（剩余5400字）