Leakage detection device and leakage detection method

A leak detection device and leak detection technology, applied in the measurement device, by detecting the appearance of fluid at the leak point, testing the fluid tightness, etc., can solve the problems of easy collision, heat exchange core leakage, inconvenient water injection detection, etc.

Inactive Publication Date: 2021-06-18
HUAWEI DIGITAL POWER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to collisions or other reasons that are likely to occur during transportation and installation, the heat exchange core has a leak point
However, after the heat exchange core is installed at the site of use, it is inconvenient to detect water injection

Method used

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  • Leakage detection device and leakage detection method
  • Leakage detection device and leakage detection method
  • Leakage detection device and leakage detection method

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Embodiment Construction

[0029] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings.

[0030] see figure 1 and figure 2, the heat exchange core 10 is the core component of the indirect cooling system (not shown in the figure), and the heat exchange core 10 adopts a cross heat exchange method. The heat exchange core 10 is roughly in the shape of a cube. The heat exchange core 10 includes a first side 11 , a second side 13 , a third side 15 and a fourth side 17 . The first side 11 is opposite to the third side 15 , and the second side 13 is opposite to the fourth side 17 . The heat exchange core 10 further includes a first flow channel 101 and a second flow channel 103 . One end of the first flow channel 101 is opened through the first side 11 , and the other end of the first flow channel 101 is opened through the third side 15 . One end of the second chan...

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Abstract

The invention provides a leakage detection device and a leakage detection method, and is used for performing leakage detection on a heat exchange core. The leakage detection device comprises a gas releaser, a gas sensor and a controller. The gas releaser and the gas sensor are both in communication connection with the controller. The gas releaser is used for providing tracer gas for the first flow channel of the heat exchange core. The gas sensor is used for detecting the tracer gas concentration of the second flow channel of the heat exchange core and feeding back the tracer gas concentration to the controller. The controller is used for comparing the tracer gas concentration detected by the gas sensor with a concentration threshold value, and if the tracer gas concentration is larger than the concentration threshold value, the controller determines that leakage points exist in the heat exchange core. Tracer gas is actively released in the first flow channel through the gas releaser, the concentration of the tracer gas in the second flow channel is automatically monitored through the gas sensor, the leakage detection device can still conduct leakage detection on the heat exchange core in the installation site of the heat exchange core, and leakage detection of the heat exchange core is greatly facilitated.

Description

technical field [0001] The present application relates to the technical field of heat exchange core leakage detection, and in particular to a leakage detection device and a leakage detection method. Background technique [0002] The heat exchange core is the core component of the indirect evaporative cooling system. Hot air and cold air pass through different channels inside the heat exchange core to complete heat exchange. Since the different flow channels are isolated from each other, the hot air and the cold air do not contact during the heat exchange process to obtain high heat exchange efficiency. Before the heat exchange core leaves the factory, it is generally used to detect whether there is water leakage in one flow channel (such as a hot runner that circulates hot air) and observe whether there is water leakage in the other flow channel (such as a cold flow channel that circulates cold air) to detect the heat and cold of the heat exchange core. Whether the runners...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/20
CPCG01M3/228G01M3/20G05B15/02
Inventor 李健蒲明明朱超男
Owner HUAWEI DIGITAL POWER TECH CO LTD
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