A composite material gas cylinder detection method and device
A composite material and detection method technology, applied in the field of composite material gas cylinder detection methods and devices, can solve the problems of low detection efficiency, rough surface, omission, etc., and achieve the effects of reliable detection, convenient operation and high detection efficiency
Inactive Publication Date: 2016-08-24
CHINA SPECIAL EQUIP INSPECTION & RES INST
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Problems solved by technology
[0004] In the prior art, although ultrasonic testing and X-ray testing have been widely used in non-destructive testing of materials, since the surface of the cladding layer 12 wrapped in the outer layer of the composite gas cylinder is very rough, it is very useful to use ultrasonic testing. Defects on the cladding layer 12 may be missed, resulting in inaccurate detection results; and X-ray detection is easy to damage the composite gas cylinder itself, and the detection efficiency is low, which cannot meet the detection requirements
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[0022] figure 2 It is a flowchart of an embodiment of the composite material gas cylinder detection method of the present invention; as shown in Figure 1, the present embodiment provides a composite material gas cylinder detection method, including:
[0023] S201, to composite material gas cylinders (such as Figure 1A or Figure 1B (shown) is filled with gas, and the pressure of the gas in the composite gas cylinder is controlled to change according to the preset law. During the process of the gas pressure changing according to the preset law, the thermal image data of the composite material gas cylinder is collected.
[0024] Specifically, an air compressor can be used to directly charge gas into the composite material gas cylinder, or a buffer tank can be set, and the buffer tank communicates with the composite material gas cylinder to inject compressed gas into the buffer tank through an air compressor, Use the buffer tank to fill the composite material gas cylinder with...
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The invention provides a method and a device for detecting a composite material gas cylinder. The method comprises the following steps: charging gas into the composite material gas cylinder; controlling the pressure of the gas inside the composite material gas cylinder to change according to a preset rule; in the changing process of the pressure of the gas according to the preset rule, acquiring thermal imagery data of the composite material gas cylinder; confirming the defects of the composite material gas cylinder according to the thermal imagery data. According to the method for detecting the composite material gas cylinder, by charging the gas into the composite material gas cylinder and utilizing the thermal imagery data in the charging process, whether defects exist on a substrate layer or a wrapping layer of the composite material gas cylinder or not can be effectively judged, the purpose that the composite material gas cylinder is accurately and reliably detected is achieved, moreover, the operation is simple, and the detection efficiency is high.
Description
technical field [0001] The invention relates to non-destructive testing technology, in particular to a composite material gas cylinder testing method and device. Background technique [0002] Figure 1A is a structural schematic diagram of a composite gas cylinder; Figure 1B It is a structural schematic diagram of another composite gas cylinder; as shown in Figure 1 and figure 2 As shown, the composite material gas cylinder is a pressure vessel with a volume of not less than 0.1L and is used to contain compressed gas; its outer shell includes an inner matrix layer 11 and a cladding layer 12 covering the outer side of the matrix layer 11, wherein the matrix layer 11 can be a metal material or a non-metal material, and the cladding layer 12 can be a metal or a non-metal material different from the base layer 11 . [0003] Since composite gas cylinders need to contain compressed gas or liquefied gas, their internal pressure may be high or may appear high under abnormal cond...
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IPC IPC(8): G01N25/72
Inventor 俞跃沈功田
Owner CHINA SPECIAL EQUIP INSPECTION & RES INST