CAUSE ANALYSIS ABOUT OVERTEMPERATURE OF RETURN OIL FROM HYDRAULIC COUPLING OF I.D.FANS

WU You-bingShenhua Yili Energy Co Ltd

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CAUSE ANALYSIS ABOUT OVERTEMPERATURE OF RETURN OIL FROM HYDRAULIC COUPLING OF I.D.FANS

Thermal Power Generation Vol. 38, Issue 8, Pages: 86-88(2009)

更新时间：2025-09-28

- CAUSE ANALYSIS ABOUT OVERTEMPERATURE OF RETURN OIL FROM HYDRAULIC COUPLING OF I.D.FANS
- 作者机构：
  
  神华亿利能源有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.26
- Published：2009
- 稿件说明：
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WU You-bingShenhua Yili Energy Co Ltd. CAUSE ANALYSIS ABOUT OVERTEMPERATURE OF RETURN OIL FROM HYDRAULIC COUPLING OF I.D.FANS[J]. Thermal Power Generation, 2009, 38(8): 86-88.
DOI：

WU You-bingShenhua Yili Energy Co Ltd. CAUSE ANALYSIS ABOUT OVERTEMPERATURE OF RETURN OIL FROM HYDRAULIC COUPLING OF I.D.FANS[J]. Thermal Power Generation, 2009, 38(8): 86-88. DOI：

摘要

对神华亿利能源公司4×200 MW机组循环流化床锅炉调试过程中引风机液力耦合器回油温度高的原因进行了分析

认为液力耦合器回油超温是因为引风机入口机械安装和风机调整方式不当

使风机负荷和轴功率增加所致。对此

提出了以下解决方案:(1)调整引风机承力端挡板旋向

并调整引风机入口挡板开度;(2)在现有耦合器油系统基础上

增加一辅助油泵;(3)改进引风机起动调试方式。实施后液力耦合器回油温度高的问题得以解决。

Abstract

The causes leading to overtemperature of return oil from hydraulic coupling of I.D.fans in the debugging process of CFB boilers for 4×200 MW units have been analysed.It is believed that the main causes resulting in overtemperature of return oil from hydraulic coupling of I.D.fans are unproper installation of mechanical parts at inlet of I.D.fans and impefect regulating mode of said fans

making load and shaft power of them to be increased.The scheme of solution has been put forward as follows:(1)adjusting the rotating direction of baffle plates at the force-bearing end of I.D.fans

and adjusting the open degree of baffle plates at inlet of said fans;(2)on the basis of existing oil system of hydraulic coupling

additionally installng auxiliary oil pump;(3)improving the debugging mode in start-up of the I.D.fans.After implementation of above-mentioned scheme

the overtemperature problem of return oil from the hydraulic coupling has been solved.

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