Sulfur deposition experimental device of sulfur-containing natural gas pipeline

Abstract

The invention relates to a sulfur deposition experimental device of a sulfur-containing natural gas pipeline. The device comprises a gas storage system, a loop system and a sulfur-dissolving agent filling system. The gas storage system and the sulfur-dissolving agent filling system are installed on the loop system. The loop system includes a detachable pipe section having a detachable structure tocarry out experiment conveniently. After ending of the experiment, the device can be fixed by a fixation device and a sulfur deposit is heated and melted. According to the invention, the influences of variables such as the specific time, temperature, pressure, flow rate and pipe wall surface roughness on the sulfur deposition law can be analyzed; and the cleaning effects on the sulfur deposit bydifferent types of sulfur-dissolving agents can be studied, thereby simulating and analyzing the sulfur deposition law in the real high-sulfur-containing natural gas pipeline.

Description

technical field [0001] The invention belongs to the technical field of pipeline transportation of natural gas, in particular to an experimental device for sulfur deposition in a sulfur-containing natural gas pipeline. Background technique [0002] my country's high-sulfur gas fields have large reserves and are widely distributed, such as Yuanba Gas Field and Puguang Gas Field. Among them, the H 2 The average S content is 15.16%, and the problem of sulfur deposition in the gathering and transportation system during the exploitation of sour natural gas has become increasingly prominent. During the transportation of high-sulfur natural gas, under the influence of pressure, temperature, flow rate and other factors, sulfur precipitation and sulfur deposition will occur. Light yellow powdery and viscous sulfur deposits are often found on the pipe wall of the gathering and transportation system, which poses a serious threat The pipeline transportation system is safe. It is mainly...

AI Technical Summary

Problems solved by technology

During the transportation of high-sulfur natural gas, under the influence of pressure, temperature, flow rate and other factors, sulfur precipitation and sulfur deposition will occur. Light yellow powdery and viscous sulfur deposits are often found on the pipe wall of the gathering and transportation system, which poses a serious threat Pipeline System Safety

It is mainly reflected in the following aspects: (1) The precipitated and deposited sulfur components are easy to block the instrumentation pressure pipe, metering orifice plate and other equipment on the pipeline, resulting in distortion of test results, inaccurate collected data, and huge potential safety hazards

(2) After sulfur deposition occurs on the pipe wall, the gas flow area will become smaller, which will increase the pressure drop and energy consumption of the pipeline, and reduce the gathering and transportation efficiency

(3) The sulfur deposits on the pipe wall will change the electric field, magnetic field, temperature field and other environments on the pipe wall surface, accelerate the corrosion of the pipe wall, and threaten the safety of the material structure

However, there are not many experimental devices that can test and study the influence of thermodynamic and kinetic factors on the sulfur deposition law of the gas produced from high-sulfur gas fields, which seriously restricts the in-depth study of the sulfur deposition law and characteristics

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