用于泵的、具有引导销的叶轮座

By improving the impeller seat design, adopting a stepped guide pin and scraping contaminants from the leading edge of the blades, the problem of large solid particles clogging the pump was solved, achieving high-efficiency operation and reliability.

CN116420029BActive Publication Date: 2026-07-17XYLEM EURO GMBH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XYLEM EURO GMBH
Filing Date
2021-10-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When handling liquids containing solids, existing pumps are prone to impeller damage and costly unplanned maintenance due to blockage caused by large solid particles. Furthermore, existing technologies are not effective in preventing the accumulation of solids at the impeller seat inlet.

Method used

An improved impeller housing is designed with a stepped structure of guide pins and a leading edge designed to scrape off contaminants. This ensures that the impeller can move axially quickly when it encounters large solid materials, reducing accumulation. Solid materials can be more easily entered and discharged through the axial gap between the guide pins and the leading edge of the blades.

Benefits of technology

It effectively prevents solid matter from accumulating at the impeller seat inlet, reduces the risk of blockage, lowers the frequency and cost of unplanned maintenance, and improves the reliability and efficiency of the pump.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及一种用于泵的叶轮座(5),所述叶轮座(5)有进口壁,其中,叶轮座(5)有进口半径,该进口半径从轴向延伸中心轴线(A)至在叶轮座(5)的进口壁和上表面(12)之间的圆形相交部分(11)测量,所述叶轮座(5)包括引导销(13),该引导销与所述进口壁连接,并从所述进口壁径向向内延伸,引导销(13)有尖端半径,该尖端半径从轴向延伸中心轴线(A)至引导销(13)的径向最内侧部分测量,其中,假想40%圆(25)从所述圆形相交部分(11)径向向内偏移在所述进口半径和所述尖端半径之间的差值的40%。叶轮座(5)的特征在于,引导销(13)包括前边缘(26),该前边缘设置成用于从泵(1)的叶轮刮除污染物,其中,引导销(13)至少在进口壁(10)和40%圆(25)之间包括预前边缘(31),该预前边缘沿泵(1)的旋转方向看和沿轴向方向看位于引导销(13)的前边缘(26)上游。本发明还涉及一种包括该叶轮座的泵。
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