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Ice detection and removal device and method

An ice layer, complex impedance technology, applied in electric heating devices, ohmic resistance heating, ohmic resistance heating components, etc., can solve the problems of limiting the application of anti-icing film, unable to accurately measure the vibration frequency of anti-icing film, etc., to avoid application scenarios Limitation issues, the effect of improving deicing efficiency, improving safety and reliability

Active Publication Date: 2021-08-20
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for aircraft, wind turbines and other occasions with high airflow velocity, the vibration frequency of the anti-icing film cannot be accurately measured, which limits the application of the piezoelectric ice measurement method of the anti-icing film in the occasions with high airflow velocity

Method used

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  • Ice detection and removal device and method
  • Ice detection and removal device and method
  • Ice detection and removal device and method

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0032] In the present invention, the terms "first", "second" and the like (if any) in the present invention and drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0033] figure 1 It is a schematic structural diagram of the ice detection and deicing device provided by the embodiment of the present invention. refer to figur...

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Abstract

The invention discloses an ice detection and removal device and method, and belongs to the field of ice prevention and removal. The device comprises an ice detection and removal film which is adhered to the surface of a target structure body and comprises a complex impedance sensor and an ice removal unit, and the complex impedance sensor and an ice layer or a water film on the surface of the ice detection and removal film form a to-be-measured area; a complex impedance measurement module is included, is connected with the complex impedance sensor and is used for sampling and measuring complex impedance data of the to-be-measured area in a preset measurement frequency band; a control module is included, is connected with the complex impedance measurement module and is used for calculating an impedance module in a low-frequency band according to the complex impedance data and a relative discrete index of an equivalent capacitance of the to-be-measured area in the preset measurement frequency band; and the state of the surface of the target structural body is determined according to the magnitude relationship among the impedance module, the relative discrete index and the corresponding threshold value, and the deicing unit is controlled to deice when the state is an icing state. The icing condition of the surface of the structural body is detected based on a complex impedance, and the device is suitable for ice prevention and removal in various occasions, especially occasions with a high airflow velocity.

Description

technical field [0001] The invention belongs to the field of anti-icing, and more particularly relates to a detection and de-icing device and method. Background technique [0002] Structural icing is almost inevitable under natural conditions, especially for equipment and facilities such as wind turbines, aircraft, EMUs, and outdoor communication equipment. Icing on the surface will lead to problems such as performance degradation, economic benefit reduction, and even safety hazards. Therefore, in order to improve the operational efficiency and safety of related equipment and facilities, the importance of anti-icing systems has gradually become prominent. [0003] Existing anti-icing systems come in various forms, and the piezoelectric ice measurement method is usually used to detect the icing situation in the anti-icing area. The piezoelectric ice measurement method is to judge whether the surface of the structure is icy by detecting the vibration frequency of the anti-ic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/34H05B3/03H05B1/02H05B3/00G01N27/22G01N27/04
CPCH05B3/34H05B3/03H05B1/0202H05B3/0014G01N27/04G01N27/22
Inventor 任宏宇桂康葛俊锋叶林
Owner HUAZHONG UNIV OF SCI & TECH
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