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Bearing structure lubricated with supercritical CO2

A carbon dioxide and supercritical technology, which is applied in the direction of sliding contact bearings, rotating bearings, bearings, etc., can solve the problems of low viscosity, low bearing capacity, flutter of pad viscosity medium structure, etc., and achieve the effect of preventing damage

Active Publication Date: 2018-06-29
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low viscosity of supercritical carbon dioxide, the bearing capacity is low, which makes the rotor support problem of supercritical carbon dioxide power cycle power generation equipment prominent.
At the same time, supercritical carbon dioxide lubrication leads to structural flutter problems of pads in light-load and viscous media

Method used

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  • Bearing structure lubricated with supercritical CO2
  • Bearing structure lubricated with supercritical CO2
  • Bearing structure lubricated with supercritical CO2

Examples

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Embodiment Construction

[0019] Such as Figure 1 to Figure 5 Shown: a bearing structure lubricated by supercritical carbon dioxide, including a bushing 1 and a tiltable pad 2, the tiltable pads 2 are four, arranged in the inner ring of the bushing 1; the lower part of the bearing can be tilted A controllable open support static pressure mechanism is installed on the tile block 2 . The controllable open support static pressure mechanism includes a static pressure bag 3 and a pressurized supercritical carbon dioxide channel 9; One end passes through the tiltable pad 2 and communicates with the static pressure bag 3, and the other end is connected with an adjustable pressurizing device.

[0020] The middle part of the back of the tiltable tile 2 is installed with a tile swing mechanism 7; the two ends behind the tiltable tile 2 are respectively equipped with swing damping blocks 6. The swing damping block 6 is a V-shaped rubber damping structure. There is a lubricating liquid inlet 5 between the tilt...

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Abstract

The invention discloses a bearing structure lubricated with supercritical CO2, which includes a bush sleeve and tiltable bush pieces which are arranged in an inner ring of the bush sleeve; a controllable opening-type supporting static pressure mechanism, with the supercritical CO2 as a medium, is installed in each tiltable bush piece at the lower side of the bearing; a damping structure for preventing vibration of the bush piece is arranged on each bush piece. The structure can improve bearing capacity of the bearing under lubrication by the supercritical CO2, and excellently solves the problem of rotor supporting of a supercritical CO2 dynamic cycle power generation device.

Description

technical field [0001] The invention relates to supercritical carbon dioxide power cycle power generation equipment, in particular to a bearing structure lubricated by supercritical carbon dioxide. Background technique [0002] In order to meet the needs of further improving the energy conversion efficiency of power generation equipment, supercritical carbon dioxide power cycle power generation equipment has become a research hotspot in many electric power research units. Bearings lubricated with supercritical carbon dioxide have the same lubricant as the mainstream medium of the power cycle, which avoids the problem of oil and gas cross-contamination in oil bearings. However, due to the low viscosity of supercritical carbon dioxide, the bearing capacity is low, which makes the rotor support problem of supercritical carbon dioxide power cycle power generation equipment prominent. At the same time, supercritical carbon dioxide lubrication causes structural flutter problems i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C17/03F16C33/04F16C32/06
CPCF16C17/03F16C32/0644F16C33/04F16C2360/00
Inventor 郭勇袁永强赵卫军高进曹寒何江南陈丹祁乃斌马骏
Owner DONGFANG TURBINE CO LTD
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