油气储运工程专业毕业论文输油管道初步设计

中国石油大学（华东）毕业设计（论文）***输油管道初步设计

学生：***

学号：03122612

专业班级：油气储运工程03-6班

指导教师：史秀敏

2007年6月20日

摘要

***管线工程全长440km，年设计最大输量为500万吨，最小输量为350

万吨。

管线沿程地形较为起伏，最大高差为32m，经校核全线无翻越点；在较

大输量时可热力越站，较小输量时可压力越站。

输油管采用沥青加强级外保护的防腐措施。全线共设热泵站12座，管

406.4×7.9，L245的直弧电阻焊钢管；采用加热密线埋地铺设。管材采用

闭式输送流程，先炉后泵的工艺，充分利用设备，全线输油主泵和给油泵均

采用并联方式。加热炉采用直接加热的方法。管线上设有压力保护系统，出

站处设有泄压装置，防止水击等现象，压力过大造成的危害。

首站流程包括收油、存储、正输、清管、站循环、来油计量及反输等功

能；中间站流程包括正输、反输、越站、收发清管球等功能。采用SCADA

检测系统，集中检测、管理，提高操作的安全性和效率。

由计算分析证明该管线的运行可收到良好的效益并有一定的抗风险能

力。

关键词: 管型；输量；热泵站；工艺流程

ABSTRACT

The whole length of the pipeline is 440 kilometer and the terrain

is plan.The maximum of transport capacity is 500 million ton per year

and minimum of throughout is 350 million ton per year.

The choice of main equipment and determination of station site

are based on the condition of every throughout. After the technical evaluation , one type of steel pipeline called L245 is select. The

optimum diameter is 404.6 millimeter and the wall thicket is 7.9 millimeter.

In order to reduce the loss of heat, the pipeline is buried under

the ground. The pipeline is coated with 7-millimeter thick

anti-corrosion asphalt layer and impressed current catholic

protection to protect the pipe from corrosion.

The process of transportation is pump-to-pump tight line operation. Crude oil is heated at first and the pump in each station.

There are three 220D-65×10pumps are equipped as the transporting pump.

The process of flows in the station includes: collecting crude oil;

forward transportation; reverse pumping over station and circulation

in the station.

Along the main line, oil transportation included head station, intermediate heating and pumping station, and terminal station.

Through the benefit analysis and feasibility study of operation,

the project has a good economic benefit and the design is feasible.

Keywords：pipeline corrosion；pump-to-pump station；analysis

目录

前言 (1)

第1章工艺计算说明书 (2)

1.1设计准则 (2)

1.1.1 设计依据 (2)

1.1.2 设计原则 (2)

1.2设计原始数据 (2)

1.2.1 设计输量 (2)

1.2.2 环境参数 (3)

1.2.3 原油物性 (3)

1.2.4 粘温关系 (3)

1.2.5 沿程里程、高程 (3)

1.3运行参数的选取 (4)

1.3.1 进出站油温选取 (4)

1.3.2 其它参数选取 (5)

1.4基础计算及经济管径选取 (5)

1.4.1 最优管径的选取 (5)

1.4.2 粘温方程 (6)

1.4.3 总传热系数K (6)

1.5热力计算 (6)

1.5.1 热力计算说明 (7)

1.5.2 流态判断 (7)

1.5.3 加热站数确定 (8)

1.6水力计算 (9)