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The application of condition monitoring and fault diagnosis technology in the operation management of refrigeration unit

A technology for fault diagnosis and refrigeration units, which is used in measuring devices, complex mathematical operations, and ultrasonic/sonic/infrasonic measurements, which can solve problems such as high maintenance costs, equipment failures, and long downtime, and achieve stable operation cycle improvement and maintenance. The effect of cost reduction

Pending Publication Date: 2019-03-08
天津长芦汉沽盐场有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Refrigeration units are mostly shut down for maintenance after they fail to operate normally. At this time, the equipment failure is more serious, and the main components are damaged and need to be replaced, resulting in long shutdown time and high maintenance costs.

Method used

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  • The application of condition monitoring and fault diagnosis technology in the operation management of refrigeration unit
  • The application of condition monitoring and fault diagnosis technology in the operation management of refrigeration unit

Examples

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] 1. Vibration parameter analysis and fault diagnosis:

[0020] 1. Equipment introduction and measuring point layout

[0021] LG20CF2B620 (refrigeration capacity 617.9kw under standard working conditions, shaft power 175kw, power frequency: 49.5Hz) type refrigeration unit, the twin-screw compressor of this refrigeration unit is connected to the motor by a diaphragm elastic coupling.

[0022] The measuring point is usually selected as the vibration-sensitive part of the equipment, that is, the part where the bearing is located (including three positions of vertical, axial and horizontal). Once the measuring point is selected, it should be marked to ensure that the signal is obtained from the same position every time it is monitored. If the measuring instrument is integrated, the probe should be consistent with the measuring direction, and the angle deflection sho...

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PUM

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Abstract

The invention discloses the application of a state monitoring and fault diagnosis technology in the operation management of a refrigerating unit. At the initial stage of equipment failure, the vibration thereof will change, such as vibration amplitude change, vibration frequency change, vibration phase change and the like. By using this characteristic, the vibration-related parameters are widely used as the characteristic parameters to characterize the state of the rotating equipment, at the same time, the temperature, pressure, oil pressure, oil temperature lubrication parameters and currentand other parameters are referenced. These parameters can be recorded, sorted out and analyzed to grasp the operation status of the equipment, thereby effectively solving the problem that the sudden shutdown failure of the refrigeration unit affects the normal production, timely finding out the hidden trouble of the failure and make scientific and reasonable maintenance plan and scheme, avoiding the occurrence of destructive failure, improving the reliability and stability of the operation of the equipment, and reducing the maintenance cost.

Description

technical field [0001] Condition monitoring and fault diagnosis technology is one of the main methods of modern equipment management. Its application is very important to ensure long-term stable operation of equipment and avoid sudden shutdown failures. Background technique [0002] Refrigeration units are mostly shut down for maintenance after they fail to operate normally. At this time, the equipment failure is more serious, and the main components are damaged and need to be replaced, resulting in long shutdown time and high maintenance costs. How to detect hidden troubles early and formulate scientific and reasonable maintenance plans and programs has become the key to reducing maintenance costs and shortening downtime. Contents of the invention [0003] In the early stage of equipment failure, its vibration will change, such as vibration amplitude change, vibration frequency change, vibration phase change, etc. Using this feature, parameters related to vibration are w...

Claims

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Application Information

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IPC IPC(8): G06F17/18G01H17/00
CPCG06F17/18G01H17/00
Inventor 张巍张传彬周允娇朱华贵冯克俊
Owner 天津长芦汉沽盐场有限责任公司
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