Water intake tower rack vibration isolation device, water intake tower and pumped storage power station

By introducing a sliding contact surface design for the upper seat plate, lower seat plate, and spherical crown in the water intake tower frame structure, combined with the fracture mechanism of shear pins, the vibration problem of the frame structure during earthquakes was solved, and the stability and durability of the structure were improved.

CN224531761UActive Publication Date: 2026-07-21NORTHWEST ENGINEERING CORPORATION LIMITED
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NORTHWEST ENGINEERING CORPORATION LIMITED
Filing Date
2025-08-19
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The frame structure at the top of the water intake tower is prone to whiplash effect during earthquakes, which can lead to an increase in the inter-story drift angle and affect the safety and operational stability of the equipment.

Method used

Design a vibration isolation device for a water intake tower frame, including an upper base plate, a lower base plate, a spherical crown, and shear pins. Utilizing the sliding contact surface of the spherical crown and the fracture mechanism of the shear pins, the connection between the upper base plate and the water intake tower is released during an earthquake, allowing the vibration energy to dissipate through sliding. After the earthquake, the device automatically resets and the shear pins are replaced.

Benefits of technology

It effectively reduced the dynamic response amplitude of the frame structure during earthquakes, suppressed the growth of inter-story drift angles, and improved the reliability and durability of the frame structure under seismic conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of water intake tower row frame vibration isolation device, water intake tower and pumped storage power station, it is related to hydraulic engineering technical field, water intake tower row frame vibration isolation device includes upper seat plate, the lower end surface of row frame column of row frame structure is used for installing in upper seat plate;Lower seat plate, the lower seat plate is located below the upper seat plate, and the lower seat plate is used for being connected with the upper end of water intake tower;Spherical crown body, the spherical crown body is set between the upper seat plate and the lower seat plate;Shear pin, one end of the shear pin is embedded in the upper seat plate, the other end is used for embedding in the water intake tower.The utility model's water intake tower row frame vibration isolation device, compared with prior art, effectively reduces the dynamic response amplitude of row frame structure in earthquake, inhibits the growth trend of interlayer displacement angle, significantly improves the reliability and durability of row frame structure under seismic working condition.
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