Air-cooling condenser radiating surface temperature field measuring method based on image stitching

A technology of air-cooled condenser and heat dissipation surface, which is applied in the field of temperature field measurement of air-cooled condenser heat dissipation surface based on image stitching, which can solve the problems of unclear image details, large measurement errors, and low image resolution

Inactive Publication Date: 2013-07-24
BEIHANG UNIV
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Problems solved by technology

Although this measurement method is simple, the measurement error is large, the acq

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  • Air-cooling condenser radiating surface temperature field measuring method based on image stitching
  • Air-cooling condenser radiating surface temperature field measuring method based on image stitching
  • Air-cooling condenser radiating surface temperature field measuring method based on image stitching

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Embodiment Construction

[0056] Below in conjunction with accompanying drawing and present embodiment the present invention will be further described:

[0057] as attached figure 1 As shown, the method for measuring the temperature field of the heat dissipation surface of the air-cooled condenser based on image mosaic proposed by the present invention includes building a four-channel infrared thermal imager temperature measurement system on the air-cooled island to obtain multiple local high-resolution images of the heat dissipation surface of the air-cooled condenser High-resolution infrared images; preprocessing of all acquired infrared images includes infrared image compression, contrast enhancement, and geometric distortion correction; based on grayscale projection, phase correlation method is used to register and fuse preprocessed infrared images to obtain the entire space The complete splicing diagram of the heat dissipation surface of the condenser; use the temperature reading program that come...

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Abstract

The invention discloses an air-cooling condenser radiating surface temperature field measuring method based on image stitching. A radiating face of an air-cooling condenser is larger than a thermal infrared imager field. The method comprises the steps of using a plurality of thermal infrared imagers to obtain multi-width partial high-resolution infrared images of the radiating face of the whole air-cooling condenser, and setting an overlapping region between adjacent obtained infrared images; using an image processing method to conduct preprocessing and stitching on the infrared images to obtain complete infrared images of the radiating face of the whole air-cooling condenser according to gray level projection of the infrared images, enabling image resolution to be high, and enabling detail information to be abundant; and using the infrared image processing method to process corresponding temperature matrix to obtain complete temperature matrix of the radiating face of the whole air-cooling condenser according to self temperature measurement functions of the air-cooling condenser. The air-cooling condenser radiating surface temperature field measuring method can obtain continuous temperature fields of the radiating face of the air-cooling condenser, and is applicable to studying aspects of optimizing an air-cooling system and reducing energy consumption and the like according to the temperature fields. The continuous temperature fields are abundant in details.

Description

【Technical field】 [0001] The invention relates to a method for measuring the temperature field of the heat dissipation surface of an air-cooled condenser, in particular to a method for measuring the temperature field of the heat dissipation surface of an air-cooled condenser based on image splicing. 【Background technique】 [0002] my country's primary energy structure of "poor oil, less gas, and more coal" determines that coal-fired thermal power generation will still dominate my country's power generation field for a long time to come, but the northern regions rich in coal resources such as Inner Mongolia , Shanxi, Shaanxi and other serious shortage of water resources. The shortage of water resources has become the primary factor restricting thermal power generation in this region. [0003] The development of air-cooling technology in thermal power plants is a very effective water-saving measure. In 1999, the State Power Corporation issued "Several Opinions on Water Conser...

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Application Information

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IPC IPC(8): G01J5/00
Inventor 李小路徐立军陈路路成艳亭
Owner BEIHANG UNIV
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