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A pipeline phase holdup detection system and method with adjustable optical path

A detection system and phase inclusion technology, applied in color/spectral characteristic measurement, measurement device, material analysis through optical means, etc., can solve problems such as low signal-to-noise ratio and deviation of measurement results, so as to improve measurement accuracy, Reliable measurement to realize the effect of real-time online detection

Active Publication Date: 2021-09-21
HEBEI UNIVERSITY
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Problems solved by technology

[0005] One of the purposes of the present invention is to provide a pipe holdup detection system with adjustable optical path, so as to solve the problem that the existing system has a low signal-to-noise ratio due to the limited optical path, so that the measurement results have deviations

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  • A pipeline phase holdup detection system and method with adjustable optical path

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Embodiment Construction

[0028] Such as figure 1 As shown, the detection system of the present invention includes a pipeline device, an optical path adjustment device, a light source transmitter, a signal receiving device, and a data acquisition and processing device.

[0029] The pipe installations from left to right are small diameter pipe 1, transition tapered pipe 2, large diameter pipe 3, organic glass pipe 4, large diameter pipe 3, transitional tapered pipe 2, small diameter pipe 1, and organic glass pipe 4 is Rectangular transparent pipes, the nozzles of other pipes are rectangular, and the joints are of matching size and sealed.

[0030] The phase holdup detection structure of the pipeline with adjustable optical path described in this paper, the internal diameter of the small diameter pipe is D 1 =50mm, tube body length L 1 =80mm, the wall thickness of the pipe body is 2mm; the length of the pipe body of the transition tapered pipe is L 2 =65mm; the inner diameter of the pipe of the large-...

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Abstract

The invention provides a pipe holdup detection system and method with adjustable optical path. The system includes a pipe device, an optical path adjustment device, a light source transmitter and a signal receiving device; the pipe device includes a plexiglass pipe in the middle and sequentially connected Large-caliber tubes, transition tapered tubes and small-caliber tubes at the two ends of the plexiglass pipeline; the optical path adjustment device includes a first concave reflector and a third concave reflector arranged on the underside of the plexiglass pipeline and sequentially arranged on the plexiglass. The first light guide mirror, the second concave reflector, and the second light guide mirror on the upper side of the pipeline; the first concave reflector and the third concave reflector are symmetrically arranged on both sides of the central axis of the second concave reflector; the light source Emitters are used to emit visible and near-infrared light. The invention has a simple structure, realizes the free adjustment of the optical path, increases the optical path, improves the signal-to-noise ratio, thereby improves the measurement accuracy, and can realize real-time on-line detection.

Description

technical field [0001] The invention relates to the technical field of gas-liquid two-phase flow detection, in particular to a pipeline phase holdup detection system and method with adjustable optical path. Background technique [0002] Gas-liquid two-phase flow is widely used in electric power, coal, metallurgy, petroleum, chemical and other industries. Phase holdup is one of the important parameters of gas-liquid two-phase flow. The real-time and on-line measurement of phase holdup plays an important role in the real-time control, safe operation, and on-line detection of the gas-liquid two-phase flow system. [0003] At present, there are many phase holdup measurement structures for gas-liquid two-phase flow. The main ones in the report are as follows: First, the most common round pipe is used, and the probe is placed along the radial direction of the measurement pipe to measure the phase holdup. The circular plexiglass pipe has a radian. The laser will refract when it ir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/05G01N21/31
CPCG01N21/05G01N21/3103
Inventor 李红莲方立德李小亭康沙沙谢红杰王红宝
Owner HEBEI UNIVERSITY
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