一种上面级贮箱的烘干方法
By combining anhydrous ethanol replacement and hot nitrogen purging with heating belt heating, the problem of moisture removal in the upper stage storage tank is solved, achieving efficient and low-cost drying effect, and is suitable for various storage tank shapes and management methods.
CN118729694BActive Publication Date: 2026-07-17BEIJING ZHONGKE AEROSPACE TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING ZHONGKE AEROSPACE TECH CO LTD
- Filing Date
- 2024-07-02
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies are insufficient to effectively remove moisture from the upper storage tank, and traditional drying equipment requires a large size and power, which cannot meet the needs of rapid drying.
Method used
Anhydrous ethanol replacement and hot nitrogen purging were used, combined with heating belts to heat key areas, to ensure that the inner walls of the upper stage tank were fully dry, especially the weld seams and propellant management unit area.
Benefits of technology
It simplifies the size and power requirements of drying equipment, improves the drying effect, ensures that the upper storage tank meets the high dryness requirements, and is suitable for various storage tank shapes and management methods.
✦ Generated by Eureka AI based on patent content.
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Figure CN118729694B_ABST
Abstract
本申请涉及航空航天技术领域，尤其涉及一种上面级贮箱的烘干方法，包括：向上面级贮箱内加注无水乙醇，使液位能完全覆盖推进剂管理装置；旋转或晃动上面级贮箱，使其内腔壁与无水乙醇充分接触；通入高纯氮气，泄出无水乙醇；重复上述步骤；在上面级贮箱的外壁的预定位置设置加热带，以保证该处温度不低于预定值；向上面级贮箱内通入第一预定温度和第一预定压力的热氮气，吹除第一预定时间；向上面级贮箱内通入第一预定温度和第二预定压力的热氮气，吹除第二预定时间，且第二预定压力小于第一预定压力，第二预定时间短于第一预定时间；重复上述吹除步骤；当相对湿度值达到预定值时结束吹除烘干。本申请简化了对烘干设备的要求，提升了烘干效果。
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