Dynamic characteristics simulation of marine turbocharger under process of rapid load reduction

ZHANG Guolei; SUN Rui; ZHANG Xiaoyu; FENG Yongming; MA Qingyang

doi:10.11949/j.issn.0438-1157.20180867

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Dynamic characteristics simulation of marine turbocharger under process of rapid load reduction

更新时间：2025-12-10

- Dynamic characteristics simulation of marine turbocharger under process of rapid load reduction
- CIESC Journal Issue S2, Pages: 316-323(2018)
- 作者机构：
  
  1. 哈尔滨工程大学动力与能源工程学院,黑龙江,哈尔滨,150001
  2. 中国船舶重工集团有限公司第703研究所,黑龙江,哈尔滨,150078
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180867
  CLC： K02
- Online First：31 December 2018，
  
  Published：31 December 2018
- 稿件说明：
移动端阅览
ZHANG Guolei, SUN Rui, ZHANG Xiaoyu, et al. Dynamic characteristics simulation of marine turbocharger under process of rapid load reduction[J]. CIESC Journal, 2018, (S2): 316-323.
DOI：

ZHANG Guolei, SUN Rui, ZHANG Xiaoyu, et al. Dynamic characteristics simulation of marine turbocharger under process of rapid load reduction[J]. CIESC Journal, 2018, (S2): 316-323. DOI： 10.11949/j.issn.0438-1157.20180867.

摘要

船用涡轮增压机组在快速降负荷过程中，维持合理的风油配比，保证燃烧正常以及避免压气机发生喘振是需要关注的重要问题。建立由增压锅炉、涡轮增压机组等主要设备构成的蒸汽动力系统仿真模型，对不同负荷突降程度下的涡轮增压机组动态特性进行仿真研究，仿真结果表明：动力系统负荷由100%突降至20%，旁通挡板打开持续时间约为5 s，排走过剩空气；在快速降负荷过程中，负荷突降幅度越大，压气机瞬时喘振裕度越小，越易发生喘振；系统最终稳定负荷越低，压气机喘振裕度越小，越易发生喘振。

Abstract

It is so important for marine turbocharger unit to maintain a reasonable ratio of wind to fuel oil

ensure normal combustion and avoid surge in the compressor in the process of rapid load reduction. A simulation model consisting of supercharged boilers and turbocharger unit was built. The response pattern of marine turbocharger unit in different reduction amplitude of load was researched. The simulation results show as follows. The load of the power system is reduced from 100% to 20%

the bypass valve is continuously opened for approximately 5 s to exhaust excess air. In the process of rapid load reduction

the greater the amplitude of the load reduction

the smaller the surge margin of the compressor and more likely the compressor is to surge. The lower the final stable load of the system

the smaller the surge margin of the compressor and more likely the compressor is to surge.

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