一种超低温立式筒袋泵及输送方法

By incorporating a cold insulation chamber and a heating chamber into the cryogenic pump, combined with leak collection and gas source reuse, the problems of cryogenic pump seal failure and energy waste are solved, thereby improving the reliability and safety of the system.

CN122129427BActive Publication Date: 2026-07-17DALIAN VACEN PUMPS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing cryogenic pumps are prone to sealing system failure under ultra-low temperature conditions, resulting in severe cold energy transfer, low system integration, significant energy waste, difficulty in handling leaks, and poor safety.

Method used

A cold insulation chamber and a heating chamber are set on the critical path of the pump shaft. The cold insulation chamber uses insulation material to block the conduction of cold energy, and the heating chamber is circulated with heating gas to maintain the temperature of the sealed area. A leakage collection and gas source reuse system are integrated to form a compact temperature management and media isolation module.

Benefits of technology

It effectively prevents the sealing material from becoming brittle, ensures stable temperature in the sealing area, enables energy cascade utilization, improves system reliability and safety, simplifies pipeline layout, and reduces installation difficulty.

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Abstract

本发明专利公开了一种超低温立式筒袋泵及输送方法,涉及低温介质输送泵技术领域,包括泵主体、泵轴、机械密封装置及集成于泵体上部的温度管理与介质隔离系统。该系统通过环绕泵轴的隔冷腔(可填充保温材料)被动阻挡冷量上侵,并设置通入加热气体的加热腔主动维持密封区域温度。其创新在于将加热腔排出的废气用作机械密封PlAN 62气封气源,实现能量再利用,并设计了带平衡管线的收集腔与外部收集罐,以安全处理密封泄漏。本发明构建了分层热屏障,实现了气源梯级利用与泄漏安全管控,显著提升了密封可靠性、系统能效与运行安全性。
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Citation Information

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