Pressure container pressure resistance test process and auxiliary tools thereof

Abstract

The invention discloses a pressure container pressure resistance test process and auxiliary tools thereof, belonging to the technical field of manufacturing of pressure containers. According to the invention, pressurization cavities and storage containers, which serve as the auxiliary tools, are additionally arranged and matched with an original test tool; in the process, a pressurization cavity mounting step is added; and different pressure test mediums are filled in the different cavities. The test process comprises the specific steps of foreign matter cleaning, pressure test medium filling, emptying, pressurization cavity mounting, water injection, pressure testing, decompression, dichlorofluoroethane recovery and ending. According to the invention, after the pressurization cavities are added in the test process, the synchronous application of a plurality of liquids can be realized; and when the dichlorofluoroethane (R141b) is taken as the pressure test medium, the production efficiency can be effectively improved and the manufacturing cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of pressure vessel production. Background technique [0002] After the pressure vessel is manufactured, a pressure test must be carried out, and sometimes a compactness test is required to test the overall strength and compactness of the product. Some important process systems require extremely high cleanliness and dryness, and there must be no rust or liquid residue in the system. Most of the pressure vessels of this type of device use nitrogen or dry and clean compressed air for air pressure test. After the test is completed, the nozzles are sealed and a certain residual pressure of the gas is kept to keep the interior dry. [0003] Conventional hydraulic tests tend to cause liquid residues, which are not easy to remove. If water is the most convenient and commonly used test medium, it needs to be dried in the open when cleaning, and the drying process will cause rust, which is not allowed by the cleanli...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a pressure vessel pressure test process and its auxiliary tooling to solve 1) liquid residues are likely to be caused during conventional hydraulic tests, affecting the dryness and cleanliness of the system, thereby affecting the performance of the entire process system; 2) the current When existing technologies use nitrogen or dry and clean compressed air for air pressure tests, the requirements for non-destructive testing are high, the manufacturing process is relatively complicated, the efficiency is low, the cost is high, and the safety is poor; Solve defects such as the situation where two liquids are applied at the same time

Images