Device for detecting scratches and redundancies on surface of rupture diaphragm

Abstract

The rupture diaphragm surface scratch and redundancy detection device comprises a base station and a plurality of light sources with different wavelengths, a diaphragm to be detected is placed on the base station, and light emitted by the light sources obliquely irradiates the surface of the diaphragm from the lateral upper portion of the base station. According to the detection device, surface scratches and redundant objects of common sizes of the rupture diaphragm can be well detected, and the detection efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ruptured diaphragm surface detection, in particular to a ruptured diaphragm surface scratch and excess object detection device. Background Art

[0002] Ruptured diaphragms are safety devices that rupture when the internal pressure of containers, pipelines, and other equipment exceeds the rupture pressure of the diaphragm, releasing the pressure and thus maintaining the safety of the equipment. Ruptured diaphragms are widely used in aerospace, nuclear power, energy, and chemical industries. Ruptured diaphragms are typical pressure components that are very sensitive to minor scratches and excess material on the surface. Therefore, surface inspection of ruptured diaphragms is very important.

[0003] Normally, the surface of the ruptured diaphragm is very smooth, but due to processing, bumps, attachment of excess materials, etc., scratches, pits, protrusions and other microstructures may be formed on the surface, changing the surface microscopic morphology.

[0004] Existing detection methods mainly rely on the naked eye recognition of inspectors, which are significantly affected by factors such as the light intensity of the detection environment, personnel recognition experience, and fatigue level, and the detection efficiency is not high. Utility Model Content

[0005] The utility model aims to provide a device for detecting scratches and excess objects on the surface of a ruptured diaphragm, so as to realize rapid detection of scratches and excess objects on the surface of a ruptured diaphragm.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a device for detecting scratches and excess objects on the surface of a ruptured membrane, including a base and a plurality of light sources with different wavelengths. The membrane to be detected is placed on the base, and the light emitted by the light source is irradiated obliquely from the upper side of the base to the membrane surface.

[0007] In the above-mentioned device for detecting scratches and excess objects on the surface of a ruptured diaphragm, the incident angles of the light emitted by each light source on the surface of the diaphragm are different.

[0008] The above-mentioned device for detecting scratches and excess objects on the surface of a ruptured diaphragm, wherein the device for detecting scratches and excess objects on the surface of a ruptured diaphragm also includes a column, each light source is installed on the column, and the column is placed next to the base; a light source switch is provided on the column, and the light source is controlled to be turned on and off by the light source switch.

[0009] The above-mentioned device for detecting scratches and excess matter on the surface of a ruptured membrane, wherein a groove is provided on the outer side wall of the base.

[0010] Compared with the prior art, the beneficial technical effects of the utility model are:

[0011] The utility model utilizes the mirror reflection generated when light is irradiated on the surface of the diaphragm, and diffuse reflection generated when light is irradiated on the position of scratches or excess objects, so as to realize the rapid detection of scratches, excess objects and the like on the surface of the ruptured diaphragm; in order to enhance the observation effect of scratches and excess objects of different sizes, a variety of light sources are provided, and the wavelengths of light emitted by each light source are different, and the angles of irradiating the diaphragm are also different; in order to facilitate taking and placing, a groove is provided on the outer side wall of the base; the ruptured diaphragm surface scratch and excess object detection device of the utility model can realize good detection of surface scratches and excess objects of common sizes of the ruptured diaphragm, and significantly improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The device for detecting scratches and excess matter on the surface of a ruptured diaphragm of the present invention is described in the following embodiments and drawings.

[0013] Figure 1 It is a schematic diagram of a device for detecting scratches and excess matter on the surface of a ruptured diaphragm according to an embodiment of the utility model. DETAILED DESCRIPTION

[0014] The following will be combined Figure 1 The ruptured membrane surface scratch and excess material detection device of the utility model is further described in detail.

[0015] See also Figure 1 The ruptured membrane surface scratch and excess material detection device of this embodiment comprises a base 10 and a column 30; a plurality of light sources with different wavelengths are installed on the column 30, and a light source switch is provided on the column 30, through which each light source can be turned on and off;

[0016] The pillar 30 is placed beside the base 10, and each light source is located above the side of the base 10, and the light emitted by each light source is irradiated obliquely onto the base 10;

[0017] The outer side wall of the base 10 is provided with a groove 20 for easy loading and unloading.

[0018] In this embodiment, three light sources with different wavelengths are installed on the column 30 .

[0019] Working principle of the device for detecting scratches and excess matter on the surface of a ruptured diaphragm of this embodiment:

[0020] Place the film to be inspected on the base 10, first turn on the light source 40, observe on the reflected light path, then turn off the light source 40, turn on the light source 50, observe on the reflected light path again, then turn off the light source 50, turn on the light source 60, and observe on the reflected light path again. In order to enhance the observation effect of scratches and excess objects of different sizes, the wavelengths of light emitted by the three light sources are different, and the angles of irradiating the film are also different.

[0021] In this embodiment, the light emitted by the light source is irradiated at a certain angle to the surface of the diaphragm. The surface roughness of the diaphragm is very small. After the light is irradiated on the surface of the diaphragm, most of it is mirror reflected. At the position of scratches or excess objects, diffuse reflection occurs due to the surface microstructure of the scratches and excess objects. At this time, when observed on the optical path of the reflected light, the brightness of the scratches and excess objects is weakened and darkened due to the reduction of reflected light, thereby achieving intuitive detection of scratches and excess objects on the diaphragm surface.

[0022] The detection device can effectively detect surface scratches and excess materials of common sizes on ruptured diaphragms, thereby significantly improving detection efficiency.

Claims

1. A device for detecting scratches and excess matter on the surface of a ruptured diaphragm, characterized in that: The device comprises a base and several light sources with different wavelengths, the diaphragm to be detected is placed on the base, and the light emitted by the light source is irradiated obliquely onto the surface of the diaphragm from the upper side of the base; the device for detecting scratches and excess objects on the surface of a ruptured diaphragm also comprises a column, each light source is mounted on the column, and the column is placed next to the base; a light source switch is arranged on the column, and the light source switch is used to control the opening and closing of each light source.

2. The device for detecting scratches and excess matter on the surface of a ruptured membrane according to claim 1, characterized in that: The incident angles of the light emitted by each light source on the film surface are different.

3. The device for detecting scratches and excess matter on the surface of a ruptured membrane according to claim 1, characterized in that: A groove is arranged on the outer side wall of the base.

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