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Multi-point type anti-blocking wind flow measurement system

A measurement system, multi-point technology, applied in the direction of measuring devices, volume metering, measuring capacity, etc., can solve the problems of large difference between hot and cold states of the flow field, large pressure loss of the measuring device, unstable air flow, etc., and achieve no pressure loss , good adjustment linearity and long service life

Pending Publication Date: 2016-10-12
ZHEJIANG DATANG WUSHASHAN POWER GENERATION CO LTD
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Problems solved by technology

However, due to the design of the boiler, there are not enough straight pipe sections for the measurement pipeline, and the position of the wind measurement device has unstable air flow, and the difference between the cold and hot states of the flow field is large, and the flow field of different working conditions is also different in the hot state. It affects the accuracy of hot and cold air measurement; in addition, the secondary air and primary air are all dust-laden airflows. The above-mentioned type of wind measuring device can only enter and exit dust, which is easy to block. The thermal maintenance workload is large, and the pressure loss of the measuring device is relatively large

Method used

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  • Multi-point type anti-blocking wind flow measurement system
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  • Multi-point type anti-blocking wind flow measurement system

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Embodiment Construction

[0020] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] see figure 1 , a multi-point anti-blocking air volume measurement system according to a preferred embodiment of the present invention, the air volume measurement device includes an instrument pipe, a pressure equalization box communicated with the instrument pipe, and the pressure equalization box communicates with several measuring The pipes are connected, wherein the measuring pipes are evenly arranged on the cross-section of the flue gas flow direction in the flue, and the instrumentation pipes are connected with the differential pressure transmitter. The measuring tube is provided with a cleaning rod, and the two ends of the cleaning rod are bent to form a U-sh...

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Abstract

The invention relates to a multi-point type anti-blocking wind flow measurement system. The system comprises a wind channel wall and a measurement device connected onto the wind channel wall, wherein the measurement device comprises a left side collection device and a right side collection device which are symmetrically arranged; the structures of the left side collection device and the right side collection device are the same; each of the left side collection device and the right side collection device comprises the upper and lower layers, namely a first layer of measurement points and a second layer of measurement points; the first layer of measurement points and the second layer of measurement points have the same structure; each layer comprises two measurement points which are symmetrically arranged and the two measurement points are oppositely arranged. By adopting the system, wind flow measurement is more accurate and reliable guarantees are provided for automatic adjustment of wind flow of a set.

Description

technical field [0001] The invention relates to a multi-point anti-blockage air volume measurement system. Background technique [0002] see figure 1 , The air volume measurement device generally adopts the traditional airfoil type wind measurement device, Venturi wind measurement device or Annubar or Verabar measurement device. However, due to the design of the boiler, there are not enough straight pipe sections for the measurement pipeline, and the position of the wind measurement device has unstable air flow, and the difference between the cold and hot states of the flow field is large, and the flow field of different working conditions is also different in the hot state. It affects the accuracy of hot and cold air measurement; in addition, the secondary air and primary air are all dust-laden airflows. The above-mentioned type of wind measuring device can only enter and exit dust, which is easy to block. The thermal maintenance workload is large, and the pressure loss o...

Claims

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Application Information

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IPC IPC(8): G01F1/34G01F15/12
CPCG01F1/34G01F15/12
Inventor 陈灿兵郑植杨程董利斌郭力晓丁旭王克遥陈小雁冯博王鹏杜学聪
Owner ZHEJIANG DATANG WUSHASHAN POWER GENERATION CO LTD
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