Sulfur deposition inducing and gathering device of gathering and transportation system

Abstract

The invention discloses a sulfur deposition inducing and gathering device of a gathering and transportation system. The sulfur deposition inducing and gathering device of the gathering and transportation system mainly comprises a cylinder body, an upper cylinder cover and a lower cylinder cover; an electric heating film is coated on the outer wall of the device; the upper cylinder cover is provided with a natural gas outlet pipeline, a gas evacuating pipeline and as well as a nitrogen injection pipeline; the lower cylinder cover is provided with a liquid sulfur discharge pipeline; the cylinder body is internally provided with a sulfur gathering net and baffling umbrellas; the side wall of the cylinder body is provided with a throttling nozzle connected with a natural gas inlet pipeline. After natural gas with high sulfur content enters the sulfur deposition inducing and gathering device provided by the invention, along with the reduction of temperature, pressure and flow speed, the element sulfur dissolved into sulfur carrying gas is precipitated gradually. Sulfur particles which are carried out from the upstream by gas flows and are precipitated again are gathered in the sulfur deposition inducing and gathering device provided by the invention and treated individually, thereby reducing the sulfur deposition hazard caused by the gathering and transportation system at the downstream. According to the invention, the defects of high production cost, high foundation investment, easiness in hurting people and damaging the environment and the like existed in the traditional sulfur deposition control methods such as physical cleaning and filling of a sulfur dissolving agent, are overcome, and a novel means is provided for the sulfur deposition control of gas field gathering and transportation systems with high sulfur content.

Description

Technical field: [0001] The invention discloses a sulfur deposition inducing trapping device, in particular to an inducing trapping device for controlling sulfur deposition in a high-sulfur natural gas gathering and transportation system. Background technique: [0002] For high-sulfur gas fields, under gas reservoir conditions, due to the high temperature and high pressure of the reservoir environment, the solubility of elemental sulfur is relatively large, and elemental sulfur dissolves in the sulfur-carrying gas. After the high-sulfur natural gas enters the ground gathering and transportation system, as the temperature and pressure drop, when the dissolved sulfur reaches saturation, the sulfur will crystallize and precipitate, and then sulfur deposition will occur. The equipment and pipeline network in the gathering and transportation station are complex, and sulfur is easily deposited on the throttle orifice, tee, valve, etc., which seriously affects the safety and effici...

AI Technical Summary

Problems solved by technology

The invention overcomes the problems of high production cost, large basic investment, and easy harm to personnel and the environment of traditional methods of controlling sulfur deposition such as physical cleaning and adding sulfur dissolving agent, and provides a new way for sulfur deposition control

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