Nondestructive testing method and device for glue flowing condition of closed diaphragm capsule of curtain type diaphragm

Abstract

The invention provides a nondestructive testing method and device for the glue flowing condition of a closed diaphragm capsule of a curtain type diaphragm, and the method comprises the following steps: vertically placing the diaphragm capsule on a testing tool, enabling the closed end of the diaphragm capsule to face downwards, and then installing a testing device; adjusting the position of the testing device to enable the testing device to be aligned with the testing surface of the diaphragm capsule; moving the testing device to enable the testing device to scan and image the testing surface of the diaphragm capsule in real time; repeatedly moving the test device or the detection tool, and sequentially detecting all the test surfaces of the diaphragm capsule; and outputting imaging pictures of all the test surfaces by the test device, and analyzing and judging a detection result. According to the nondestructive testing method and device for the glue flowing condition of the curtain type membrane closed capsule, the glue flowing condition of the glue in the capsule is obtained through infrared imaging, and nondestructive testing of the glue flowing condition in the capsule is achieved.

Description

technical field [0001] The invention belongs to the field of detection equipment, and in particular relates to a non-destructive detection method and device for glue flow of a curtain-type membrane-enclosed membrane box. Background technique [0002] The MBR membrane bioreactor system has been developed in China for nearly ten years. After the continuous improvement and improvement of membrane manufacturing technology, the MBR bioreactor treatment system has become a mature technology. The hollow fiber curtain membrane has the characteristics of high effluent water quality, strong anti-pollution ability, small footprint, long service life and low price. As an important part of MBR membrane bioreactor, it is widely used in municipal sewage and industrial sewage. During the treatment, the sewage treatment and reuse requirements are met. [0003] Among them, in the hollow fiber curtain membrane manufacturing process, in order to fix the membrane filaments at both ends, the glu...

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Problems solved by technology

[0007] For example, the application document with publication number CN111579591A discloses an infrared non-destructive testing method for wind power blades. The method uses infrared thermal imaging detection technology to heat the inner cavity and surface of wind power blades with an excitation heat source. During the heating process, infrared Thermal imaging equipment dynamically detects wind power blades, and uses different structures of blades and structures with defects in the heat conduction process to obtain dynamic cloud images. Through the simulation processing of dynamic cloud images of thermal imaging, the type and size of defects are finally determined. However, due to the different types of metal detection and fluid detection, this application cannot be directly applied to sealing detection

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