Multifunctional hydrogen conveying pipeline test system

Abstract

The invention discloses a multifunctional hydrogen conveying pipeline test system. The multifunctional hydrogen conveying pipeline testing system comprises a gas source, a gas metering and detecting unit, a combustion explosion characteristic testing unit, a pipeline hydrogen adaptability testing unit, a hydraulic characteristic monitoring unit, a pipeline connecting system and a master control room. Compared with the prior art, the test system established by the invention can carry out the following processes in a circulation path: gas mixing, separation, metering and precision testing in a pure hydrogen / hydrogen-doped pipeline, combustion explosion characteristic testing, and hydrogen adaptability testing of in-service / newly-built pipelines and parts under the conditions of different temperatures, pressures and loads; detecting defects and leakage of pipelines and parts thereof; monitoring hydraulic characteristics of a pipeline system; and collecting and managing whole-line data.

Description

technical field [0001] The invention relates to the technical field of pipeline testing, in particular to a multifunctional hydrogen transmission pipeline testing system. Background technique [0002] Hydrogen energy has the characteristics of abundant sources, green and low carbon, and wide application. The national 14th Five-Year Plan clearly states that "developing hydrogen energy industry is an important way to improve energy security, promote energy revolution, lead industrial transformation and upgrading, and achieve green development". Safe and economical transportation is one of the key links in the development of hydrogen energy. At present, the main methods of hydrogen energy transportation include high-pressure hydrogen cylinder long-tube trailer transportation, liquid hydrogen tank truck transportation and liquid hydrogen barge transportation. These methods of transportation have higher transportation costs and higher efficiency. Low. Due to the wide distributio...

AI Technical Summary

Problems solved by technology

[0005] (1) Hydrogen molecules are small and diffuse quickly. When using in-service or new pipelines to transport hydrogen, pipes, parts and equipment will face greater risks of hydrogen leakage / leakage;

[0006] (2) Hydrogen gas has low ignition energy, is flammable and explosive, and the accumulation of leaked hydrogen gas in a limited space will cause great safety hazards. In case of open fire, it will cause serious harm to the safety of surrounding lives and property;

[0007] (3) There are compatibility issues between in-service or newly-built hydrogen transmission pipelines and their parts and related equipment and hydrogen / hydrogen-doped natural gas, and the addition of hydrogen may make pipes, parts or equipment (such as compressors, mixing equipment, Separation equipment and metering equipment, etc.) fail prematurely, causing major safety accidents;

[0008] (4) The pipeline pressure range is wide, the temperature and load environment are changeable, and the service conditions are complex, which poses great challenges to the prediction and control of hydrogen-doped pipelines

These systems and methods only design the process of blending, transportation and distribution, and separation and purification technology in the process of hydrogen doping / pure hydrogen pipeline transportation, and do not focus on the characteristics of hydrogen, the impact of hydrogen on pipelines, and the prevention of hydrogen-induced failure consequences of pipelines. specific considerations and design

Images