Safe processing system and safe processing method for release medium of intermittent pump station of liquid state ethane pipeline

A technology for intermediate pumping stations and safe handling, applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems of high construction investment, achieve the effect of reducing infrastructure investment, reducing energy consumption, and optimizing energy consumption

Pending Publication Date: 2020-07-31
CHINA PETROLEUM ENG & CONSTR +1
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Problems solved by technology

Since the ethane reserves in pipelines are generally large, the construction investment required to store gas-phase ethane in high-pressure gas tanks is relatively high; transport risk

Method used

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  • Safe processing system and safe processing method for release medium of intermittent pump station of liquid state ethane pipeline

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[0049] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0050] Any feature disclosed in this specification (including any appended claims, abstract), unless otherwise stated, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0051] like figure 1 As shown in the figure, a safety treatment system for discharge medium in an intermediate pumping station of a liquid ethane pipeline, the liquid ethane is transported through a liquid ethane pipeline 1, and the liquid ethane pipeline 1 is provided with an inbound shut-off valve 2 and an outbound valve. A shut-off valve 3 and a booster pump 4. The safety treatment system includes an unplanned release treatment system, a planned venting system, ...

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Abstract

The invention discloses a safe processing system and a safe processing method for a release medium of an intermittent pump station of a liquid state ethane pipeline. The liquid state ethane is conveyed by a liquid state ethane pipeline. An in-station cut-off valve, an out-of-station cut-off valve and a pressurizing pump are arranged on the liquid state ethane pipeline. The safe processing system comprises a non-planed release processing system, a planed emptying system, a recovery system and a control system. Based on the operating characteristics of a liquid state ethane long conveying pipeline pump station, two independent release medium processing modes are established by adopting a policy of directly burning a non-planed release medium and recovering a planed emptied medium efficientlyaccording to characteristics that recovered ethane is relatively good in economic value and is relatively low in released temperature by combining a safety protecting idea of the intermittent pump station of a conventional oil product pipeline, so that a condition of constructing a high pressure tank to receive the non-planed release medium is avoided, and a trunk line stored medium is recoveredefficiently.

Description

technical field [0001] The invention belongs to the technical field of liquid ethane transportation, and in particular relates to a system and method for safely treating the discharge medium of an intermediate pumping station of a liquid ethane pipeline. Background technique [0002] With the development of natural gas processing technology and the development of high-efficiency natural gas utilization technology, the recovery efficiency of ethane in natural gas has been continuously improved, and its long-distance transmission technology needs to be vigorously developed to expand the scope of application. Ethane product is a kind of light molar mass among natural gas by-products, with high saturated vapor pressure, critical temperature of about 32°C, and critical pressure of about 4.5MPa, so it is possible to carry out single-phase transportation in gas or liquid state. Compared with gaseous ethane pipeline transportation, liquid transportation has the remarkable characteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/065F17D3/01
CPCF17D1/065F17D3/01
Inventor 陈俊文汤晓勇谌贵宇顾华军郭艳林杨帆胡连锋
Owner CHINA PETROLEUM ENG & CONSTR
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