火箭推进2024，Vol.50Issue(6)：107-115,9.DOI:10.3969/j.issn.1672-9374.2024.06.009
机械密封端面比压数字化测试技术
Digital test technology of end face special pressure for mechanical seal
王洪福 1董丽双 1刘鑫 1王晨光 1涂霆1
作者信息
摘要
Abstract
Mechanical seal is a key part of the liquid rocket engine,and the end face special pressure affects the sealing performance.A set of digital test system of end face special pressure for mechanical seal is introduced.The digital measurement technology for products based on IEEE802.15.4 can achieves measurement transmission.The design of test device balances the medium pressure and ensures the high verticality of the mechanical seal.Automatic gas distribution technology provides high precision and sequencing media based on PID control.The coupled O-ring and automatic pressing technology can fix the stationary ring quickly.The automatic compression technology with electric motor,ball screw and grating ruler is able to adjust various compression of stationary ring.The measurement and control system can measure various parameters and coordinated control all systems based on LabVIEW.The feasibility of the key technologies is analyzed and the important structure is simulated.The experimental results show that the sealing performance by the automatic pressing technology is good,the media precision by automatic gas distribution technology is improved from±0.05 MPa to±0.02 MPa,the compression precision of stationary ring is increased from±0.02 mm to±0.005 mm,and the test time for a single product of a specific compression is reduced from 15 min to 5 min.关键词
机械密封/端面比压/自动配气/试验装置/数字化测试Key words
mechanical seal/end face special pressure/automatic gas distribution/test equipment/digital test分类
通用工业技术引用本文复制引用
王洪福,董丽双,刘鑫,王晨光,涂霆..机械密封端面比压数字化测试技术[J].火箭推进,2024,50(6):107-115,9.
