Bearing temperature monitoring method and bearing temperature monitoring system

A technology of bearing temperature and monitoring system, applied in the direction of thermometer, thermometer application, thermometer parts, etc., can solve the problems of long maintenance period, large economic loss, downtime maintenance, etc., and achieve the effect of avoiding economic loss

Pending Publication Date: 2021-09-28
CNOOC DEEPWATER DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Bearing temperature monitoring is an important measure to ensure the safe operation of the bearing. The existing high-speed multi-stage centrifugal compressor radial bearing temperature monitoring device is installed inside the radial bearing at the outlet end. When the temperature monitoring device is damaged and fails, the high-speed multi-stage centrifugal compressor Type compressors need to be shut down for maintenance, and the maintenance period is long, resulting in large economic losses

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  • Bearing temperature monitoring method and bearing temperature monitoring system

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Embodiment 1

[0033] Such as figure 1 As shown, this embodiment provides a bearing temperature monitoring method for temperature monitoring of radial bearings of high-speed multi-stage centrifugal compressors. The bearing temperature monitoring method provided in this embodiment includes: monitoring the bearing temperature through the first temperature monitoring device, and monitoring the oil return temperature of the bearing lubricating oil through the second temperature monitoring device; when the first temperature monitoring device has no monitoring data, if the return oil temperature Not greater than the set value A1, the bearing continues to run.

[0034] In the bearing temperature monitoring method provided in this embodiment, the bearing temperature is monitored by the first temperature monitoring device, and the bearing oil return temperature is monitored by the second temperature monitoring device. Since the change trend of the bearing lubricating oil return oil temperature is the...

Embodiment 2

[0037] Such as figure 2 As shown, this embodiment provides a bearing temperature monitoring method, which, on the basis of Embodiment 1, further includes that when the second temperature monitoring device has no monitoring data, if the bearing temperature is not greater than the set value B1, the bearing continues to run.

[0038] In the temperature monitoring method provided in this embodiment, when one of the first temperature monitoring device and the second temperature monitoring device fails, the other can continue to monitor the bearing temperature, so that when the first temperature monitoring device has no monitoring data , if the return oil temperature is not greater than the set value A1, the bearing can continue to run, and when the second temperature monitoring device fails and there is no monitoring data, if the bearing temperature is not greater than the set value B1, the bearing can also continue to run.

[0039] Optionally, as in figure 2 As shown, when the ...

Embodiment 3

[0044] The existing temperature monitoring device for radial bearings of high-speed multi-stage centrifugal compressors uses two temperature-measuring probes buried inside the bearing, one is the main temperature-measuring probe and the other is the spare temperature-measuring probe. The main equipment of the high-speed multi-stage centrifugal compressor is a high-value large-scale equipment with a very long design overhaul period. However, in the actual use of the high-speed multi-stage centrifugal compressor, the service life of the main temperature measuring probe and the spare temperature measuring probe is long The design overhaul period of the main equipment of the high-speed multi-stage centrifugal compressor is often lower than that of the main equipment of the high-speed multi-stage centrifugal compressor. The main body of the high-speed multi-stage centrifugal compressor is often intact, but both the main temperature measuring probe and the backup temperature measuring...

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Abstract

The invention belongs to the technical field of bearing temperature monitoring, and discloses a bearing temperature monitoring method and a bearing temperature monitoring system. The bearing temperature monitoring method monitors the bearing temperature through a first temperature monitoring device and monitors the bearing oil return temperature through a second temperature monitoring device. Due to the fact that the oil return temperature variation trend of the bearing lubricating oil is the same as the temperature variation trend of the bearing, the temperature variation trend of the bearing can be effectively monitored according to the oil return temperature variation trend of the lubricating oil. When the first temperature monitoring device breaks down and has no monitoring data, the bearing temperature can be indirectly monitored through the oil return temperature measured by the second temperature monitoring device; and if the oil return temperature is not larger than a set value, the bearing can continue to operate. Therefore, shutdown maintenance is not needed when the first temperature monitoring device breaks down and has no monitoring data, and economic loss caused by influence on production operation is avoided.

Description

technical field [0001] The invention relates to the technical field of bearing temperature monitoring, in particular to a bearing temperature monitoring method and a bearing temperature monitoring system. Background technique [0002] Bearing temperature monitoring is an important measure to ensure the safe operation of the bearing. The existing high-speed multi-stage centrifugal compressor radial bearing temperature monitoring device is installed inside the radial bearing at the outlet end. When the temperature monitoring device is damaged and fails, the high-speed multi-stage centrifugal Type compressors need to be shut down for maintenance, and the maintenance period is long and the economic loss is large. [0003] Therefore, there is an urgent need for a bearing temperature monitoring method and a bearing temperature monitoring system to solve the above problems. Contents of the invention [0004] The purpose of the present invention is to provide a bearing temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K13/00G01K1/02
CPCG01K13/00G01K1/02
Inventor 刘建路屈涛杨庆廖俊祥徐磊范洪军
Owner CNOOC DEEPWATER DEV
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