Airtight testing device of steel pipe

Abstract

The invention relates to an airtight testing device of a steel pipe. The airtight testing device comprises a water tank, wherein a plug is sealed at the port of the steel pipe; a steel pipe supporting and lifting rack is arranged in the water tank; on the steel pipe supporting and lifting rack, a fixed frame of the plug sealed at the port of the steel pipe is arranged aiming at one end of the steel pipe on the steel pipe supporting and lifting rack, and a gliding frame for installing the plug sealed at the port of the steel pipe is arranged aiming at the other end of the steel pipe; a steel pipe input rack and an inputting and transmitting mechanism joined with the input rack and used for transmitting the steel pipe to the steel pipe supporting and lifting rack are arranged at one side of the water tank; and a steel pipe output rack and an outputting and transmitting mechanism joined with the output rack and used for transmitting the steel pipe to the output rack from the steel pipe supporting and lifting rack are arranged at the other side of the water tank. The integrated device disclosed by the invention has the advantages of being compact in structure, reliable for joining and higher in automation degree and is capable of simultaneously carrying out airtight test operations of a plurality of steel pipes, thus, the production efficiency is greatly increased, the labour intensity of workers is lightened, and the device is particularly applied to being used cooperatively with continuous processes of a steel pipe producing and processing unit.

Description

technical field [0001] The invention relates to a device for testing the fluid tightness of tubular objects, especially steel pipes. Background technique [0002] The finished steel pipe needs to be tested for air tightness. Usually the airtight test is to immerse the sealed steel pipe filled with compressed air in water, and then observe whether there are bubbles on the surface of the steel pipe, so as to determine whether the steel pipe has leakage defects. The above-mentioned airtightness test method is one of the convenient and effective means to check the processing quality of steel pipes, especially the quality of weld seams. However, the current process and equipment for the airtightness test of steel pipes include adding sealing plugs to the two ports of the steel pipe. Passing compressed air, then immersing the steel pipe in the water tank and taking out the test steel pipe from the water tank after the test is over, all are manual operations, with high labor inten...

AI Technical Summary

Problems solved by technology

The above-mentioned airtightness test method is one of the convenient and effective means to check the processing quality of steel pipes, especially the quality of weld seams. However, the current process and equipment for the airtightness test of steel pipes include adding sealing plugs to the two ports of the steel pipe. Introduce compressed air, then immerse the steel pipe in the water tank and take out the test steel pipe from the water tank after the test is over, all of which are manual operations, with high labor intensity, low efficiency and poor benefit, and are not suitable for large-scale production processes.

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