ANALYTICAL STUDY ON BOLT BREAKAGE OF THE VALVE BODY FOR MOTOR-DRIVEN MASTER VALVE

doi:10.19666/j.rlfd.2003.10.024

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ANALYTICAL STUDY ON BOLT BREAKAGE OF THE VALVE BODY FOR MOTOR-DRIVEN MASTER VALVE

更新时间：2025-09-28

- ANALYTICAL STUDY ON BOLT BREAKAGE OF THE VALVE BODY FOR MOTOR-DRIVEN MASTER VALVE
- Thermal Power Generation Issue 10, Pages: 73-75(2003)
- 作者机构：
  
  1. 山东电力研究院,山东,济南,250002
  2. ,山东,济南,250002
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2003.10.024
  CLC： TM621.3
- Published：2003
- 稿件说明：
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ANALYTICAL STUDY ON BOLT BREAKAGE OF THE VALVE BODY FOR MOTOR-DRIVEN MASTER VALVE[J]. Thermal power generation, 2003, (10): 73-75.
DOI：

ANALYTICAL STUDY ON BOLT BREAKAGE OF THE VALVE BODY FOR MOTOR-DRIVEN MASTER VALVE[J]. Thermal power generation, 2003, (10): 73-75. DOI： 10.19666/j.rlfd.2003.10.024.

摘要

通过对某发电厂 1号机组电动主闸门阀体螺栓断裂的研究分析

认为螺栓结构不合理、螺纹加工质量不合格以及螺栓安装工艺不当

是造成电动主闸门端盖脱离阀体的主要原因。对此

提出了火电厂高温螺栓应采用等强柔性螺栓

严格控制螺栓加工质量

严禁使用大锤敲击安装法等相关措施和建议

Abstract

Through analytical study on bolt breakage of the valve body for motor-driven master valve of unit NO.1 in a power plant

it is considered that the main causes leading to end-cover fly-out of the motor-driven master valve at this time are as follows: （1） unreasonalble bolt structure; （2） the quality of screw thread fabrication isn’t up to standard; （3） unsuitable process of bolt installation. For these

relevant measures and recommendations have been put forward

namely: the high temperature bolts used in thermal power plants should be that with high flexibility; the farication quality of bolts should be strictly controlled; the method of bolt installation with big hammer striking should be seriously prohibited

etc.. The above-mentioned measures and recommendations can be used for guiding practice in the power plants.

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