Quake-proof joint of buried pipe network

Abstract

The invention provides a quake-proof joint of a buried pipe network, which is capable of ensuring the safety of the buried pipe network under the condition of earthquakes and has self-resetting capacity. The quake-proof joint of the buried pipe network consists of a connecting pipeline, a right connecting pipeline flange, a left connecting pipeline flange, a lantern ring, a right pipeline flange, a left pipeline flange, a left shape memory alloy bar, a right shape memory alloy bar, a right bolt, a left bolt and a left shape memory alloy bolt, wherein the connecting pipeline is connected with the pipeline flanges; the lantern ring is arranged in the middle of the connecting pipeline; the connecting pipeline flanges are connected with the pipeline flanges through the shape memory alloy bolts; the pipeline flanges are connected with the bolts; and the bolts are connected with the shape memory alloy bars. The invention ensures the safety of the buried pipe network under the condition of earthquakes, reduces the secondary disasters of earthquakes, and has the advantages of self-resetting capacity, no need of repair after the earthquakes and reduced maintenance expense.

Description

(1) Technical field [0001] The invention relates to pipeline technology, in particular to a buried pipeline network anti-seismic joint. (2) Background technology [0002] Lifeline engineering is an important infrastructure for urban operation, and the pipeline network system is an important carrier for water supply, gas supply, heat supply, and oil transportation. Over the past half a century, many earthquakes in various countries around the world have caused serious damage to the urban pipe network system, which not only affects earthquake relief, but also has a serious impact on the recovery of industries and residents' lives after the disaster. The repair of the pipe network after the earthquake also requires Invest a lot of money. [0003] Under the action of earthquake, the buried pipeline network will cause the tension, compression and bending damage of the pipeline network due to the dynamic action and the large deformation of the ground caused by the earthquake, res...

AI Technical Summary

Problems solved by technology

Under earthquake action, the direct flexible connection of pipelines is prone to loosening between pipelines, thus causing leakage accidents

The rigid connection based on the flange, under the action of the earthquake, due to the large tensile stress and bending deformation of the flange part, it is easy to cause damage to the connection part, and it will also lead to secondary disaster

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