Liquid-stable flow path for outputting liquid, liquid passing method, and pump head
By optimizing the liquid flow path design of the liquid phase pump, the first-in-first-out (FIFO) liquid is achieved, avoiding bubble accumulation. This solves the problem of bubble buildup in the liquid phase pump flow path and improves the stability of liquid flow and the accuracy of chromatographic analysis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO ZHONGCHUANG SCI INSTR PUBLIC R & D SERVICE PLATFORM CO LTD
- Filing Date
- 2026-04-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing liquid phase pump flow path designs are prone to bubble accumulation, leading to unstable liquid flow and affecting the accuracy and reproducibility of chromatographic analysis results.
Design a liquid flow path including an inlet branch, an outlet branch, and a guide branch to ensure first-in-first-out liquid flow and avoid bubble accumulation. Bubbles are discharged through the outlet branch and the guide branch. The inlet branch and the outlet branch are coaxial and intersect perpendicularly. The outlet of the guide branch is inclined. The inner diameter of the inlet branch is larger than the inner diameter of the outlet of the guide branch. A one-way valve is installed to prevent backflow.
It improves the stability and accuracy of liquid flow, reduces bubble accumulation, and enhances the precision of chromatographic analysis and the consistency of experimental results.
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Figure CN122407535A_ABST
Abstract
Citation Information
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