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Structure for preventing water coming into turbine fuel and fuel leakaging

A steam turbine oil, steam turbine technology, applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve problems such as oil ingress, and achieve the effect of preventing water ingress, preventing external leakage, and preventing external leakage.

Active Publication Date: 2007-01-03
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Since the oil seal clearance may increase with the static friction during operation, and the oil gear of the bearing box is relatively close to the shaft end of the steam turbine, the cylinder will The steam in the shaft leaks out along the shaft seal, so that the steam leaked from the shaft end seal is sucked into the negative pressure bearing box, causing water to enter the oil

Method used

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  • Structure for preventing water coming into turbine fuel and fuel leakaging
  • Structure for preventing water coming into turbine fuel and fuel leakaging
  • Structure for preventing water coming into turbine fuel and fuel leakaging

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Embodiment Construction

[0015] refer to Figure 1-Figure 4 , the present invention comprises the bearing box 1 on the rotor, the bearing 2, the oil shelf 3 and the oil shelf chamber 8, the cylinder 5, the steam seal body 4, and the steam seal 6. Directly process a miniature booster fan 9 at the place. Or the miniature booster fan 9 adopts an interference fit on the gear oil ring 11 and is sleeved on the rotor 7 . The oil stall chamber 8 is connected with one or several intake pipes 10 that can ensure that the oil stall chamber outside the micro booster fan is equal to the atmospheric pressure. The oil stalls 3 of these two structures need to be modified accordingly in order to adapt to this change, that is, one or several intake pipes need to be connected to the oil stall chamber 8 to ensure that the pressure of the oil stall chamber outside the micro fan 9 is equal to the atmospheric pressure At the same time, the length of the steam inlet pipe 10 should avoid the leakage of the steam seal 6, and ...

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Abstract

In the invention, a miniature pressurized fan is added at the position of the original rotor boss or the slot in the oil baffle of a turbine, a fan and a compressor, or the miniature pressurized fan adopts a shrink fit on the oil scraper ring. The fan can produce two airflows, an airflow flows on the side of the cylinder to stop the steam leaked from the shaft end from being sucked into the bearing box and the other airflow flows to the bearing box in order to prevent the turbine oil from leaking outwards and water from entering into the turbine oil.

Description

technical field [0001] The invention relates to the improvement of the structure at the oil stall of the rotor bearing box of a steam turbine, fan and compressor, in particular to a structure for preventing water from entering the oil of the steam turbine and oil leakage from the oil stall of the bearing box of the steam turbine, fan and compressor. Background technique [0002] Water entering the turbine oil is one of the oil system failures that often occur in power plants. Water entering the oil may emulsify the lubricating oil of the turbine, resulting in a decrease in oil quality and seriously endangering the safe operation of the turbine. The main manifestations are: the oxidation and rust of the regulating security part will cause jamming, which will easily cause load fluctuations and overspeed; the oil quality will deteriorate, and the oil film will not be formed, which will easily cause vibration and tile burning accidents, resulting in excessive hydrogen humidity in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/40F01D25/00F04D29/10F04B39/00F04C27/00
Inventor 方宇袁永强
Owner DONGFANG TURBINE CO LTD
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