High-energy pipeline whipping limiting system and method

Abstract

The invention discloses a high-energy pipeline whipping limiting system and method. The system comprises multiple groups of whipping limiting devices, wherein the two whipping limiting devices in one group are separately mounted at the two sides of a high-energy pipeline bend; and each whipping limiting device comprises a carrier assembly, a first pin seat, a first hinge pin, a speed sensitivity type hydraulic damper, a second hinge pin, a second pin seat, a nut, a bolt and a plate type arc-shaped pipe hoop. By separately mounting one group or multiple groups of whipping limiting devices on the high-energy pipelines close to the two sides of the high-energy pipeline bend, when the high-energy pipelines generate thermal displacement, the speed sensitivity type hydraulic dampers move with the high-energy pipelines, and only small resistance is produced on the high-energy pipelines; and when the high-energy pipeline bend is broken, the high-energy pipelines are locked by the speed sensitivity type hydraulic dampers, rated resistance is formed on the high-energy pipelines, and at the same time, other key equipment and the high-energy pipelines are effectively protected.

Description

technical field [0001] The invention relates to a pipeline slam limiting system and method, in particular to a high-energy pipeline sling limiting device and method, and belongs to the fields of electrical and electromechanical technology and energy security. Background technique [0002] At present, high-energy pipelines are widely used in the fields of nuclear power and chemical industry. For high-energy pipelines, if a pipe break occurs at the elbow joint of the high-energy pipeline, high-pressure steam will be ejected, which will generate a continuous large force on the high-energy pipeline. The high-energy pipeline forms a slam. Due to the continuous injection of high-pressure steam, the slam kinetic energy of the high-energy pipeline will continue to increase. If the high-energy pipeline touches other key equipment during the slam process, it will impact other key equipment with huge energy, causing serious damage. Secondary accidents, in order to prevent high-energy p...

AI Technical Summary

Problems solved by technology

The commonly used pipeline slam limiting device is a U-shaped (or other shape) metal structure. Considering the thermal displacement of the high-energy pipeline, a certain space must be left between the U-shaped slam limiting device and the high-energy pipeline during installation. It meets the thermal displacement requirements of the high-energy pipeline, but when the high-energy pipeline breaks at the elbow connection of the high-energy pipeline, the thermal displacement space of the high-energy pipeline reserved between the U-shaped slam limit device and the high-energy pipeline becomes a high-energy pipeline. The factors of pipeline acceleration and slamming energy increase. At the same time, when the U-shaped slamming limiting device is geometrically deformed, the U-shaped slinging limiting device has less resistance to the high-energy pipeline, and the slamming energy of the high-energy pipeline will continue to increase. When U When the U-shaped slam limiting device enters into plastic deformation, the U-shaped slam limiting device really begins to absorb and consume the slamming energy of the high-energy pipeline. At this time, the slamming energy of the high-energy pipeline is already very large. In addition, in the world, there is no test equipment that can truly simulate high-energy pipeline slamming and test the U-shaped slamming limiting device.

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