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A method for detecting the static pressure difference failure of dust collection filter based on temperature correction

A detection method, static pressure difference technology, applied in the direction of machine/structural component testing, measuring devices, instruments, etc., to achieve the effect of overcoming false alarms, strong sensitivity and robustness, and improving flexibility

Inactive Publication Date: 2017-01-04
SHANGHAI SHARP ELECTRONICS +1
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Problems solved by technology

[0008] The present invention is aimed at the problem that the above method has great limitations on the fault diagnosis of filter screen failure in the prior art, and proposes a method for detecting the static pressure difference of dust collection filter screen failure based on temperature correction

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  • A method for detecting the static pressure difference failure of dust collection filter based on temperature correction
  • A method for detecting the static pressure difference failure of dust collection filter based on temperature correction
  • A method for detecting the static pressure difference failure of dust collection filter based on temperature correction

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Embodiment Construction

[0019] In order to make the content of the present invention clearer and easier to understand, the present invention will be further described below through specific embodiments of the present invention.

[0020] The implementation method is first as figure 1 The shown hardware structure block diagram establishes a static pressure difference detection hardware system. On the basis of not changing the overall structure of the air cleaner, the present invention adds a pressure acquisition device 2 with a special layout at its net outlet 1, and utilizes the relevant pipeline 3 to draw out the measurable Static pressure difference. The standard electric signal of the static pressure difference is obtained through the high-precision differential pressure sensor 4 with a suitable range, and the relevant software is compiled to realize the computer acquisition, filtering and recording of the original data of the static pressure difference. / D conversion acquisition equipment collect...

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Abstract

The invention relates to a method for detecting failure of a static pressure difference of a dust-collection filter screen based on temperature correction. The method comprises the following steps: establishing a dust-collection filter screen failure detection experiment system, namely arranging a static pressure difference collection module upper computer of the dust-collection filter screen and a fault warning device in a purifier system; establishing a data collecting and recording system; enabling an air purifier to continuously work in an experiment environment, simultaneously monitoring the static pressure difference P(k) of the dust-collection filter screen of an air purifier system and an environment temperature T(k) in real time by virtue of the upper computer, and recording the total operational duration of the air purifier, wherein k represents a current operation moment. By utilizing the method based on the temperature correction, the change of the temperature correction of a same base temperature reference value can be estimated on line, so that the online fault diagnosis of the dust-collection filter screen of the air purifier system is realized. Finally, the method is applied to the failure detection of the dust-collection filter screen of the subsequent relevant air purifier system, and a correction method is finished in a programming manner, so that the hardware cost of the product is lowered, and the flexibility, reliability and accuracy of the system are improved.

Description

technical field [0001] The invention relates to a fault diagnosis technology, in particular to a temperature correction-based method for detecting the static pressure difference of the failure of a dust collection filter. Background technique [0002] In recent decades, with the development of industry and the provision of personal living standards, people have paid more and more attention to air quality. However, the statistical results in 2012 show that only 40.9% of the 325 prefecture-level and above cities meet the environmental air quality standards; only 23.9% of the 113 key environmental protection cities meet the environmental air quality standards. For improving air quality, people have proposed many effective methods and measures. Among them, air purifiers are the most commonly used and most effective tools for improving indoor air quality that is most closely related to people's lives. [0003] Air purification series products can absorb, decompose or transform ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N7/00G01M99/00
Inventor 胡卓焕叶立朱伟涛孙雅珍陈基峰孙姝戴勇
Owner SHANGHAI SHARP ELECTRONICS
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