A new high-temperature centrifugal fan main bearing cooling structure

By using a directional air-cooling design and a rotating sealed cooling pipe system, the lubrication failure of the main bearing and the water-cooling leakage problem of the high-temperature centrifugal fan were solved, achieving efficient temperature control and improved safety.

CN224479092UActive Publication Date: 2026-07-10SUZHOU WEIYI FLUID TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU WEIYI FLUID TECH
Filing Date
2025-09-01
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing high-temperature centrifugal fan main bearings are prone to lubrication failure and accelerated wear under high-temperature environments, and water cooling methods have the problems of water leakage risk and high cost.

Method used

The design adopts directional air cooling, which delivers cooling air directly to the spindle through cooling pipes. Combined with the flow channel design of the external bearing housing, the rotating seal connection between the transition joint and the air guide interface ensures stable delivery of cooling air and avoids leakage. The cooling is achieved through heat exchange between the external bearing housing and the bearing surface.

Benefits of technology

It achieves efficient bearing temperature control, avoids cooling air leakage and high costs, reduces additional heat generated by friction, and extends the service life and operational safety of the fan.

โœฆ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to centrifugal fan accessory technical field especially relates to a novel high temperature centrifugal fan main bearing cooling structure. Its technical scheme includes the main shaft and sets up the air -cooled structure at one end of main shaft, the air -cooled structure includes the connecting seat fixed in the outer wall of main shaft, the central position fixed connection of connecting seat has the transition joint, the inner wall of overdo joint is penetrated and has the connecting hose, one side of connecting hose is provided with cooling pipeline, the outer wall of main shaft is provided with bearing structure, the other end fixed connection of connecting hose has the outlet pipeline, one end fixed connection of outlet pipeline has the cooling fan, the inner wall rotation of transition joint is connected with the air -guide interface. The utility model discloses high temperature centrifugal fan main bearing cooling structure, it has the advantage that can control bearing operating temperature below the lower range, and does not have the risk of water leakage, and the low cost.
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