A pressure difference detection device and method for early warning of slurry pipeline blockage

Abstract

The invention relates to a pressure difference detection device and method for blockage warning of a slurry pipeline. The pressure difference detection device comprises a pressure probe set, a radialpressure difference sensor, an axial pressure difference sensor, a control system, a pump, and a remote monitoring system. The pressure probe set comprises a first pressure probe, a second pressure probe and a third pressure probe. The first pressure probe and the second pressure probe are separately arranged at the top and the bottom of the front end of the slurry pipeline and are located on thesame radial line. The third pressure probe is arranged at the top of the rear end of the slurry pipeline and is located on the same axis as the first pressure probe. The radial pressure sensor is connected with the first pressure probe and the second pressure probe and is used for acquiring a radial pressure difference signal from the front end of the slurry pipeline. The axial pressure differencesensor is connected with the first pressure probe and the third pressure probe and is used for acquiring an axial pressure difference signal between the front end and the rear end of the slurry pipeline. The control system judges the pipeline blockage condition and the slurry flow pattern according to the radial pressure difference signal and the axial pressure difference signal and sends a corresponding instruction to the pump and the remote monitoring system according to a judgment result. The pressure difference detection device can be widely applied to the field of pipeline detection.

Description

technical field [0001] The invention relates to a pressure difference detection device and method for early warning of slurry pipeline blockage, belonging to the field of fluid flow safety. Background technique [0002] The slurry transportation pipeline will be blocked due to solid deposition during the transportation process, which will bring economic losses and safety hazards to production. At present, most of the relevant detection methods focus on the rapid detection and positioning after the blockage occurs. However, after the blockage occurs, the slurry delivery pipeline still needs to stop working, which will still cause certain economic losses. Therefore, in order to minimize the loss and damage caused by pipeline blockage, how to analyze the characteristics of the pressure signal before the blockage occurs, so as to give an early warning of the blockage and take appropriate measures to maintain the safety and stability of pipeline transportation has become the curr...

AI Technical Summary

Problems solved by technology

[0002] The slurry transportation pipeline will be blocked due to solid deposition during the transportation process, which will bring economic losses and safety hazards to production

At present, most of the relevant detection methods focus on the rapid detection and positioning after the blockage occurs. However, after the blockage occurs, the slurry delivery pipeline still needs to stop working, which will still cause certain economic losses.

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