Pressure testing device and pressure testing method for long-distance pipeline

Abstract

The invention relates to a pressure testing device for a long-distance pipeline. The pressure testing device comprises a water filling unit and a pressurizing unit which are respectively mounted on afirst base and a second base. The invention further relates to a pressure testing method adopting the pressure testing device. The long-distance pipeline comprises a plurality of conveying pipe sections, and valves are arranged at the joints of the conveying pipe sections. The pressure testing method comprises the steps of filling the first conveying pipe section with water by using the water filling unit, pressurizing the first conveying pipe section by using the pressurizing unit after water filling is completed, simultaneously filling other conveying pipe sections with water by using the water filling unit, simultaneously using the pressurizing unit and the water filling unit until the last conveying pipe section is filled with water, and stopping the water filling unit after the waterfilling is completed, and pressurizing the last conveying pipe section by the pressurizing unit. The water filling unit and the pressurizing unit are respectively arranged on the two bases and are respectively pried, the water outlet pipe sections of the water filling unit and the pressurizing unit respectively comprise a hose, the movement is more convenient, the water filling unit and the pressurizing unit can simultaneously fill water and pressurize different conveying pipe sections, the time is saved, and the pressure testing efficiency is improved.

Description

technical field [0001] The invention relates to a pipeline pressure testing device and a pressure testing method, in particular to a pressure testing device and a pressure testing method for a long-distance pipeline. Background technique [0002] Compared with conventional pipelines and equipment pressure testing, the pressure test link of long-distance pipeline construction has an important feature, that is, the pipeline is long and the pipe diameter is large. This makes pressure testing an important part of long-distance pipeline construction and one of the important links that affect the construction period. The existing pressure test devices are mostly aimed at the equipment and pipelines in the device. The pressure test devices manufactured according to the process plan of the existing pressure test devices are used in the long-distance pipeline pressure test process, which has long water injection, slow pressure rise, and process settings It is not suitable for the pr...

AI Technical Summary

Problems solved by technology

The existing pressure test devices are mostly aimed at the equipment and pipelines in the device. The pressure test devices manufactured according to the process plan of the existing pressure test devices are used in the long-distance pipeline pressure test process, which has long water injection, slow pressure rise, and process settings Pressure test construction for long-distance and large-diameter pipe sections that do not meet the requirements

[0003] There is a time-consuming problem in the process scheme of a pressure test device currently used

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