Processing method of flue gas duct measuring section and flue gas duct measuring section

A processing method and flue gas duct technology, which is applied in the field of flue gas duct flow detection, can solve the problems of large fluctuations in the detection data of flow detection points, low measurement accuracy, and large gas disturbance range.

Pending Publication Date: 2022-08-02
XIAN THERMAL POWER RES INST CO LTD
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  • Application Information

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Problems solved by technology

In the related art, the distance between the straight pipe section and the elbow is small, and the gas flow in the straight pipe section is affected by the elbow, which will make the gas disturbance in the straight pipe downstream of the elbow larger, thus causing flow detection The detection data of the point fluctuates greatly, resulting in low measurement accuracy

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  • Processing method of flue gas duct measuring section and flue gas duct measuring section
  • Processing method of flue gas duct measuring section and flue gas duct measuring section
  • Processing method of flue gas duct measuring section and flue gas duct measuring section

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Embodiment Construction

[0027] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] like figure 1 As shown, the flue gas duct measurement section 1 of the embodiment of the present invention includes a curved duct 11 , a detection duct 12 and a straight duct 13 that are connected in sequence.

[0029] The angle between the inner wall surface of the detection pipe 12 and the center line of the detection pipe 12 is greater than 0 degrees and less than or equal to 15 degrees.

[0030] The inventors found that: figure 2 As shown in the related art, when the gas flows in the pipeline, the gas obviously has a large gas disturbance at the downstream of the bend, that is, the gas flow velocity on the same cross...

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Abstract

The invention provides a flue gas duct measuring section processing method and a flue gas duct measuring section.The flue gas duct measuring section processing method comprises the following steps that a flue gas duct is prepared, the flue gas duct comprises a bent pipeline and a straight pipeline, a detection pipeline is prepared, the detection pipeline is connected between the bent pipeline and the straight pipeline, and the bent pipeline is connected with the straight pipeline; the radial size of the inner wall surface of the detection pipeline is gradually increased in the direction from the straight pipeline to the bent pipeline, one end of the bent pipeline is used as an air inlet, and one end of the straight pipeline is used as an air outlet. The flue gas duct measurement section obtained by the processing method of the flue gas duct measurement section is small in internal gas disturbance amplitude and has the advantage of high measurement precision.

Description

technical field [0001] The invention relates to the technical field of flue gas duct flow detection, in particular to a processing method of a flue gas duct measurement section and a flue gas duct measurement section. Background technique [0002] The flow detection point installed on the flue gas pipeline is generally installed in a long straight pipe section (that is, a continuous straight pipe section above 10-20 meters). In related technologies, due to the limited space conditions of thermal power plants, it is difficult to find Longer straight pipe section, therefore, install the flow detection point in the straight pipe section after the elbow. The distance between the straight pipe section and the elbow in the related art is small, and the gas flow in the straight pipe section is affected by the elbow, which will cause the gas in the straight pipe downstream of the elbow to have a large disturbance, which will lead to flow detection. The detection data of the point f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L43/00F16L9/00G01F15/00G01F15/18
CPCF16L43/00F16L9/003F16L9/006G01F15/00G01F15/185
Inventor 陈得胜高国栋孙大伟郑金闫宏石清鑫马翔李昊燃王伯平
Owner XIAN THERMAL POWER RES INST CO LTD
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