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Pipeline flow velocity measuring device based on fiber Bragg grating

An optical fiber Bragg and flow velocity measurement technology, applied in measurement devices, fluid velocity measurement, velocity/acceleration/impact measurement, etc., can solve problems such as inability to disassemble, inconvenient for inspection and maintenance, and achieve the effect of avoiding structural fatigue

Active Publication Date: 2018-11-30
GUANGZHOU UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this structure is one-piece and cannot be disassembled, which is inconvenient for future inspection and maintenance.

Method used

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  • Pipeline flow velocity measuring device based on fiber Bragg grating
  • Pipeline flow velocity measuring device based on fiber Bragg grating
  • Pipeline flow velocity measuring device based on fiber Bragg grating

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. Limitations of Invention.

[0037] see Figure 1-Figure 4 , the fiber Bragg grating-based pipe flow velocity measurement device of the present invention includes a pipe 1, a ball valve 2 arranged in the pipe 1, a rotary drive mechanism 3 for driving the ball valve 2 to rotate to connect or close the pipe 1, and a detection device 4, Wherein, the upper end of the ball valve 2 is provided with an opening 2-1, and the pipeline 1 is provided with a through hole 1-1 at a position corresponding to the opening 2-1; The mounting base 4-1 and the optical fiber tube 4-2, wherein, the mounting base 4-1 is provided with a connection hole 4-3 through the mounting base 4-1 for the optical fiber tube 4-2 to pass through, so The connecting hole 4-3 communicates wit...

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Abstract

The invention discloses a pipeline flow velocity measuring device based on a fiber Bragg grating. The pipeline flow velocity measuring device comprises a pipeline, a ball valve arranged in the pipeline, a rotating driving mechanism and a detection device; an opening is formed in the upper end of the ball valve; a through hole is formed in the pipeline; the detection device comprises a mounting seat and an optical fiber pipe; a connecting hole is formed in the mounting seat and communicates with the through hole; the mounting seat is provided with an opening and closing control mechanism at theconnecting hole; and when the connecting hole is connected with the through hole, the optical fiber pipe sequentially passes through the connecting hole, the through hole and the opening and then extends into an inner cavity of the ball valve. The pipeline flow velocity measuring device adopts a detachable and movable flow velocity measurement design mode, thus the pipeline flow velocity measuring device only makes contact with a fluid in the pipeline when measuring is needed, and the pipeline flow velocity measuring device is prevented from being eroded and generating structural fatigue accordingly. In addition, the pipeline flow velocity measuring device is convenient to operate and maintain.

Description

technical field [0001] The invention relates to a pipeline flow velocity measurement device, in particular to a pipeline flow velocity measurement device based on an optical fiber Bragg grating. Background technique [0002] In today's society, with the rapid development of science and technology, flow measurement devices have been widely used in industry, agriculture, medicine and other industries. The accuracy of flow measurement data plays a vital role in the development of society. [0003] As an important part of measurement science and technology, the use of flowmeters plays an important role in promoting the development of science and technology. Among them, flowmeters are an important means of detecting flow velocity during oil-water transportation. With the advancement of science and technology, flow measurement technology continued to innovate in the 20th century, and instruments such as hot-wire anemometers and laser Doppler velocimeters were invented. With the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/26
CPCG01P5/26
Inventor 江帆徐勇程钟永钊
Owner GUANGZHOU UNIVERSITY
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