钻机柴油机二级涡轮增压系统优化与流场分析

doi:10.11885/j.issn.1674-5086.2018.03.15.02

西南石油大学学报(自然科学版) ›› 2018, Vol. 40 ›› Issue (6): 172-180.DOI: 10.11885/j.issn.1674-5086.2018.03.15.02

• 石油机械与油田化学 • 上一篇

钻机柴油机二级涡轮增压系统优化与流场分析

钟功祥¹, 向令¹, 穆伯锋²

1. “石油天然气装备”教育部重点实验室·西南石油大学, 四川成都 610500;
2. 中国石油西南油气田分公司川西北气矿, 四川江油 621700

收稿日期:2018-03-15 出版日期:2018-12-01 发布日期:2018-12-01
通讯作者: 钟功祥,E-mail:zhonggx3170@163.com
作者简介:钟功祥,1962年生,男,汉族,四川南充人,教授,主要从事石油机械工程科研和教学工作。E-mail:zhonggx3170@163.com;向令,1992年生,男,汉族,湖北恩施人,硕士,主要从事石油矿场机械研究。E-mail:1226155828@qq.com;穆伯锋,1989年生,男,汉族,河北保定人,硕士,主要从事流体机械的仿真和性能优化研究。E-mail:mubf@petrochina.com.cn
基金资助:
省部共建"石油天然气装备"教育部重点实验室项目（2017sts03）

Optimization and Flow Field Analysis of a Two-stage Turbocharging System for Drilling Rig Diesel Engines

ZHONG Gongxiang¹, XIANG Ling¹, MU Bofeng²

1. MOE Key Laboratory of Oil & Gas Equipment, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. Northwest Sichuan Gas Field, PetroChina Southwest Oil and Gas Field Company, Jiangyou, Sichuan 621700, China

Received:2018-03-15 Online:2018-12-01 Published:2018-12-01

摘要/Abstract

摘要： 以济柴190系列柴油机的真实尺寸和实验数据为依据，对二级涡轮增压器的改造方案进行了分析，确立了二级涡轮增压器连接方案。在GT-Power中建立发动机模型并验证了模型的可靠性，在GT-Power中对二级涡轮增压器进行仿真计算并与原机涡轮增压器进行了对比分析；建立流道模型，设置合适的边界条件对二级涡轮增压系统的内部流场进行分析，分析了原增压器和二级涡轮增压系统的压气端和涡轮端的内部流场分布和运行状况。研究发现新的涡轮增压系统较原机相比的加速性能、动力性能、低转速特性都有提高，相同时间内新增压系统的进气流量更多，使燃油的燃烧更加充分，大大降低了燃油消耗率和废气中氮氧化物的含量。

关键词: 二级涡轮增压, 钻机, 流场分析, 发动机性能, 节能减排

Abstract: Based on the actual dimensions and experimental data of Jichai 190 series diesel engines, the modification of these engines using a two-stage turbocharger was analyzed, and a scheme for installing a two-stage turbocharger in these engines was established. An engine model was constructed using the GT-Power engine simulation software, which was also used to validate the reliability of the model. A two-stage turbocharger was then simulated in GT-Power, and a comparison was performed between the two-stage turbocharger and the original turbocharger of Jichai 190 series diesel engines. A channel model was constructed with appropriate boundary conditions to analyze the internal flow fields of the two-stage turbocharging system. An analysis was then conducted on the internal flow field distribution and operating conditions of the compressor end and turbine end of the original turbocharger and two-stage turbocharging system. It was observed that the new turbocharging system results in improved acceleration performance, dynamic performance, and low rounds-per-minute (RPM) performance compared to the original engine. In addition, the increase in air intake in the new turbocharging system helps to burn fuel more thoroughly and cleanly, which greatly reduces the engine's fuel consumption rates and the NO_x content of its exhaust gases.

Key words: two-stage turbocharger, drilling rig, flow field analysis, engine performance, reducing energy consumption and emissions

中图分类号:

TE933

钟功祥, 向令, 穆伯锋. 钻机柴油机二级涡轮增压系统优化与流场分析[J]. 西南石油大学学报(自然科学版), 2018, 40(6): 172-180.

ZHONG Gongxiang, XIANG Ling, MU Bofeng. Optimization and Flow Field Analysis of a Two-stage Turbocharging System for Drilling Rig Diesel Engines[J]. 西南石油大学学报(自然科学版), 2018, 40(6): 172-180.

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钻机柴油机二级涡轮增压系统优化与流场分析

Optimization and Flow Field Analysis of a Two-stage Turbocharging System for Drilling Rig Diesel Engines

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