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Spherical internal detector for detecting petroleum transmission pipeline leakage

An inner detector and oil pipeline technology, applied in the field of spherical inner detector, can solve the problems of high risk of blockage or even damage to the pipeline, high detection cost, large volume, etc., and achieve the effects of wide applicability, high detection sensitivity and small volume

Inactive Publication Date: 2012-05-09
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is accurate and has high precision. The disadvantage is that when detecting pipes with different diameters, it is necessary to replace the in-pipe detectors of corresponding diameters. The volume is large, the risk of blocking or even damaging the pipes is high, and the detection cost is high.

Method used

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  • Spherical internal detector for detecting petroleum transmission pipeline leakage
  • Spherical internal detector for detecting petroleum transmission pipeline leakage
  • Spherical internal detector for detecting petroleum transmission pipeline leakage

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Embodiment Construction

[0011] Attached below figure 1 And attached figure 2 The present invention is further described. figure 1 Middle 5 is the spherical pressure-bearing aluminum shell of the inner detector, which is composed of two hemispherical aluminum shells connected by slits and fastened by 3 to 6 M4*5 fastening screws 6. In the lower hemispherical aluminum shell The shell is provided with a groove for placing an O-shaped sealing ring. The two hemispherical aluminum shells form a radial seal. The outer diameter of the aluminum spherical shell is Φ100mm, the wall thickness is 8mm, and the design pressure is ≥5MPa; the polyurethane foam layer 3 is closely attached to the On the spherical pressure-bearing aluminum shell, the thickness of the foam layer is 30mm; a tapered hole 4 is set on the polyurethane foam layer. The large hole diameter of the tapered hole is Φ15mm, and the small hole diameter is Φ10mm. The top of the housing is provided with a threaded communication hole 2, the internal ...

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Abstract

The invention discloses a spherical internal detector for detecting petroleum transmission pipeline leakage. The detector comprises a spherical aluminum shell and a polyurethane foam layer outside the shell, wherein an electronic device is arranged in the aluminum shell and comprises an ARM (Advanced RISC Machines) processor, an IMU (inertia measurement unit), an A / D analog to digital converter, an SDRAM (Synchronous Dynamic random access memory) internal memory, an NAND Flash memory, a micro SD (Secure Digital) memory card, an anti-aliasing low-pass filter, a preamplifier, an electret capacitor microphone, a rechargeable lithium battery, a power supply module and a connection flat cable, wherein a digital triaxial accelerometer, a magnetometer and a gyroscope are arranged in the IMU. Theinvention has the advantages that the detector has high detection sensitivity, low preparation cost, a small size and low power consumption, is not easily blocked in a pipeline, is flexible to use and is widely applied.

Description

technical field [0001] The invention relates to a spherical inner detector for detecting oil pipeline leakage. It belongs to the technical field of devices for detecting pipeline leakage. Background technique [0002] With the rapid development of the pipeline transportation industry, the increase of pipelines, the increase of pipe age, the manufacturing defects, construction defects and corrosion of the pipeline itself, and man-made damage, etc., pipeline accidents occur frequently, causing damage to people's lives, property and living environment. Therefore, the timely discovery and location of defects such as corrosion and cracks in pipelines and leakage caused by defects has important practical significance. [0003] At present, there are mainly two types of existing methods for detecting pipelines at home and abroad: one is the external detection method that detects changes in physical parameters such as flow, pressure, and sound caused by leakage. Negative pressure w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/06
Inventor 陈世利郭世旭靳世久李一博李健
Owner TIANJIN UNIV
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