RETROFIT OF REPLENISHING AND DISCHARGING DEVICES FOR SEAL-OIL TANK OF GENERATORS AND EFFECT ANALYSIS THEREOF

GAO Shu-jun; SONG Fo-mingShajiao A Power Plant

doi:10.19666/j.rlfd.2008.11.034

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RETROFIT OF REPLENISHING AND DISCHARGING DEVICES FOR SEAL-OIL TANK OF GENERATORS AND EFFECT ANALYSIS THEREOF

更新时间：2025-09-28

- RETROFIT OF REPLENISHING AND DISCHARGING DEVICES FOR SEAL-OIL TANK OF GENERATORS AND EFFECT ANALYSIS THEREOF
- Thermal Power Generation Issue 11, Pages: 129-131(2008)
- 作者机构：
  
  沙角A电厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2008.11.034
  CLC： TM311
- Published：2008
- 稿件说明：
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GAO Shu-jun, SONG Fo-mingShajiao A Power Plant. RETROFIT OF REPLENISHING AND DISCHARGING DEVICES FOR SEAL-OIL TANK OF GENERATORS AND EFFECT ANALYSIS THEREOF[J]. Thermal power generation, 2008, (11): 129-131.
DOI：

GAO Shu-jun, SONG Fo-mingShajiao A Power Plant. RETROFIT OF REPLENISHING AND DISCHARGING DEVICES FOR SEAL-OIL TANK OF GENERATORS AND EFFECT ANALYSIS THEREOF[J]. Thermal power generation, 2008, (11): 129-131. DOI： 10.19666/j.rlfd.2008.11.034.

摘要

对于氢冷汽轮发电机组

无氢气外漏、保持发电机内的氢气纯度、避免发电机进油是保证其安全运行的3项重要指标

而发电机密封供油系统中的密封油箱补排油装置的可靠性是实现该3项指标的保证。针对沙角A电厂4号发电机密封油箱补排油装置存在的密封油箱同时补排油、油位控制品质下降等问题

对发电机密封油箱补排油浮球阀进行了技术改造。实际应用表明

改造后密封油箱油位均能够自动控制在理想状态

实现了密封油箱油位的自动化控制

大大提高了机组运行的安全可靠性。

Abstract

Three important indices for ensuring safe operation of the hydrogen cooled turbo-generator sets are as follows:having no hydrogen leakage to the outside;keeping purity of hydrogen in the generator;and avoiding oil entering into the generator.The reliability of oil-replenishing and oil-dicharging device for seal-oil tank in the seal-oil supplying sysrem

however

is the guarantee to realize the above-mentioned three indices.Directing against the problems existing in the device of replenishing and discharging oil for seal-oil tank of generator no.4 in Shajiao A Power Plant

such as discharging oil occurred at the same time of replenishing oil into the seal-oil tank

decreasing control quality of oil-level in the seal-oil tank

etc.

the retrofit of floating-ball valves for replenishing oil into the tank and for discharging oil out from the tank has been carried out.Practical application shows that the oil-level in seal-oil tank after retrofit can accurately and automatically be controlled to the desired situation

realizing control automation of oil-level in the seal-oil tank

enhancing greatly the safety and reliability in operation of the unit.

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Related Institution

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