Title:
MULTI-LAYER ROLLING VIBRATION ISOLATION APPARATUS HAVING LEAD-ZINC DAMPING ROD
Document Type and Number:
WIPO Patent Application WO/2022/217394
Kind Code:
A1
Abstract:
A multi-layer rolling vibration isolation apparatus provided with a lead-zinc damping rod applied to an LNG storage tank, the apparatus being characterized in that: an upper connecting cover plate and an upper rolling groove are connected by means of bolts; a lower connecting cover plate and a lower rolling groove are connected by means of bolts; a lower groove of the upper rolling groove corresponds to the position of an upper groove of a middle rolling groove; an upper groove of the lower rolling groove corresponds to the position of a lower groove of the middle rolling groove; and steel balls are placed in the upper and lower grooves respectively. The number of layers of the vibration isolation apparatus is limited so as to reach the maximum vibration isolation period, and the vibration isolation apparatus can achieve variable-rigidity rolling vibration isolation by means of increasing or decreasing the rolling grooves of the middle layer. Meanwhile, a lead-zinc damping rod is inserted in the middle of each layer of rolling grooves. By means of changing the number of layers of rolling vibration isolation grooves and adding a lead-zinc damping rod, it is possible to design different forms of multi-layer rolling vibration isolation apparatuses provided with lead-zinc damping rods, which are suitable for regions that have different seismic fortification intensities. According to the present invention, the stability of the LNG storage tank can be improved, the shock absorption and energy consumption capacities of the LNG storage tank can be increased, and the LNG storage tank has an instantaneous reset function, so that the LNG storage tank can not only support an upper structure, but can also isolate input from an earthquake to the upper structure. The structure and the installation construction are simple, and the costs are low.
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Inventors:
CHENG LIHUA (CN)
SUN JIANGANG (CN)
TIAN ZHONGSHAN (CN)
LAI SHAOCHUAN (CN)
LI XIANG (CN)
WANG XIANZHONG (CN)
YANG WEN (CN)
NAN JINGFU (CN)
SUN JIANGANG (CN)
TIAN ZHONGSHAN (CN)
LAI SHAOCHUAN (CN)
LI XIANG (CN)
WANG XIANZHONG (CN)
YANG WEN (CN)
NAN JINGFU (CN)
Application Number:
PCT/CN2021/086387
Publication Date:
October 20, 2022
Filing Date:
April 12, 2021
Export Citation:
Assignee:
UNIV GUANGDONG PETROCHEM TECH (CN)
SOUTH CHINA BRANCH OF NAT PETROLEUM AND NATURAL GAS PIPELINE NETWORK GROUP CO LTD (CN)
SOUTH CHINA BRANCH OF NAT PETROLEUM AND NATURAL GAS PIPELINE NETWORK GROUP CO LTD (CN)
International Classes:
E04B1/98; E04H9/02
Foreign References:
| CN109424238A | 2019-03-05 | |||
| CN206554304U | 2017-10-13 | |||
| CN204919853U | 2015-12-30 | |||
| CN203222729U | 2013-10-02 | |||
| US20110024600A1 | 2011-02-03 | |||
| EP1002174A1 | 2000-05-24 |
Attorney, Agent or Firm:
BEIJING GAOHANG INTELLECTUAL PROPERTY AGENCY CO. LTD. (CN)
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