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A shutdown protection method for centrifugal compressor units in long-distance natural gas pipelines

A long-distance pipeline and centrifugal compression technology, applied to machines/engines, mechanical equipment, non-variable pumps, etc., can solve problems such as unreasonable selection of monitoring points, insufficient extraction of equipment vibration features, and low accuracy of fault identification

Active Publication Date: 2022-04-12
国家管网集团重庆天然气管道有限责任公司
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Problems solved by technology

[0005] However, the above schemes in the prior art still have the following problems. First, the selection of monitoring points is not reasonable enough to extract the vibration characteristics of the equipment. Secondly, the fault monitoring is realized by threshold value, and the accuracy of fault identification is low. Mistaken stop reports happen from time to time, affecting the normal operation of the equipment

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  • A shutdown protection method for centrifugal compressor units in long-distance natural gas pipelines
  • A shutdown protection method for centrifugal compressor units in long-distance natural gas pipelines
  • A shutdown protection method for centrifugal compressor units in long-distance natural gas pipelines

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[0012] The specific implementation of this patent will be described in detail below in conjunction with the accompanying drawings. It should be pointed out that this specific implementation is only an example of the preferred technical solution of this patent, and should not be understood as limiting the scope of protection of this patent.

[0013] This specific embodiment relates to a shutdown protection method for a centrifugal compressor unit in a long-distance natural gas pipeline. In this specific embodiment, the structure of the centrifugal compressor unit of the natural gas long-distance pipeline is as follows: figure 1 As shown, it has the characteristics of complex structure and large volume, so the feature collection of long-distance natural gas pipeline centrifugal compressor unit is an important link, that is, how to collect the necessary feature data without setting too many collection points and avoiding the impact The normal operation of the centrifugal compress...

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Abstract

This patent discloses a shutdown protection method for a centrifugal compressor unit in a long-distance natural gas pipeline. The method includes: step 1, setting a data acquisition sensor; step 2, data alarm processing; step 3, analyzing the alarm result and judging whether to perform shutdown protection; The detection ability and accuracy of the centrifugal compressor of the natural gas long-distance pipeline are improved by the above method.

Description

technical field [0001] This patent relates to the technical field of natural gas equipment, in particular to a protection method for centrifugal compressor units in long-distance natural gas pipelines. Background technique [0002] Compressors generally refer to centrifugal compressors and axial flow compressors in petrochemical enterprises. A turbo compressor is a machine used to increase gas pressure and transport gas, and it is also commonly known as a fan. Usually, turbo compressors and prime movers such as steam turbines, gas turbines, and water turbines constitute a turbo compressor unit. The most widely used types of turbocompressors are axial flow and centrifugal. The centrifugal compressor means that the movement of gas in the centrifugal compressor is carried out along the radial direction perpendicular to the axis of the compressor. The increase of gas pressure is because when the gas flows through the impeller, due to the rotation of the impeller, the gas is s...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00
CPCF04D27/001F04D27/008
Inventor 刘廷刚曹丽召赵志超王磊夏敏刘小波赵飞松陈福林
Owner 国家管网集团重庆天然气管道有限责任公司