Method for detecting airtightness of formed pressure vessel

Abstract

The invention provides a method for detecting the airtightness of a formed pressure vessel, and the method employs a device for detecting the airtightness of the formed pressure vessel, and the devicecomprises an installation plate, a sealing mechanism, an installation frame, an air bag, and a fixing mechanism. The fixing mechanism can stably fix the sealing mechanism in the to-be-detected pressure container in the using process, and the sealing mechanism is matched with the air bag for use so that the sealing position of the to-be-detected pressure container can be sealed; the problems thata sealing mechanism in the prior art is poor in sealing performance due to improper operation, detection gas leaks out through the sealing mechanism, and detection data of the pressure vessel is inaccurate are solved, in addition, the mounting frame is simple in structure and convenient to operate, the to-be-detected pressure vessel can be fixed to the installation plate, and the detection efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of pressure vessel production and manufacturing, in particular to a method for detecting the airtightness of a pressure vessel after forming. Background technique [0002] A pressure vessel is a closed container that can withstand pressure. The pressure vessel has a wide range of uses, and it has an important position and role in many sectors such as industry, civil, military, and many fields of scientific research. Among them, the chemical industry and the petrochemical industry are the most used, and the chemical pressure vessels used in the petrochemical industry alone account for about 50% of the total number of pressure vessels. Chemical pressure vessels are used in chemical and petrochemical fields, mainly used for heat transfer, mass transfer, reaction and other processes, as well as storage and transportation of pressurized gas or liquefied gas. Because pressure vessels are generally used under rel...

AI Technical Summary

Problems solved by technology

Because pressure vessels are generally used under relatively high pressure, there are certain potential safety hazards. During production, each pressure vessel needs to be tested for air leakage, especially the detection of the weld of the pressure vessel is an important part.

[0003] In the prior art, the detection of pressure vessels generally involves blowing the detection gas into the inner cavity of the pressure vessel for detection. However, the sealing mechanism in the prior art is prone to poor sealing performance due to improper operation, and the detection gas will pass through the sealing mechanism. Leak out, resulting in inaccurate detection data of the pressure vessel; in addition, it needs to be fixed when the pressure vessel is detected, the structure of the fixing mechanism in the prior art is too complicated, which makes its use and maintenance inconvenient, and reduces the pressure vessel. Detection efficiency

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