Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Reciprocating compressor operation state monitoring method, system, device and storage medium

A technology of running state and compressor, applied in the field of compressors, can solve problems such as insufficient accuracy, insufficient comprehensiveness, relying on manual experience, etc., and achieve the effect of meeting application requirements, low calculation cost, and simple and easy technology.

Active Publication Date: 2021-11-30
XI AN JIAOTONG UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the abnormal monitoring of compressors mainly relies on certain specific single limit values, such as the threshold value of vibration acceleration, etc. This monitoring behavior is simple enough but not accurate enough, not comprehensive enough, and more dependent on manual experience

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reciprocating compressor operation state monitoring method, system, device and storage medium
  • Reciprocating compressor operation state monitoring method, system, device and storage medium
  • Reciprocating compressor operation state monitoring method, system, device and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0095] refer to figure 1 , figure 2 , Figure 3(a)-Figure 3(c) , Figure 4 , Figure 5(a), Figure 5(b1)-Figure 5(b4) , Image 6 , the reciprocating compressor operating state monitoring method of the present embodiment:

[0096] (1) Preprocess the collected vibration signals, dynamic pressure signals in the cylinder, and key phase signals to obtain vibration signal samples and p-V diagrams for each operating cycle of the compressor;

[0097] (2) Feature extraction is performed on the vibration signal sample and the p-V diagram respectively, and the two features of the same period extracted are synthesized into a feature vector of multi-information fusion;

[0098] (3) Calculate the Mahalanobis distance of the eigenvector of multi-information fusion and compare it with the preset Mahalanobis distance threshold to judge the operating status of the compressor;

[0099] Wherein, step (1) specifically includes:

[0100] In step 1.1, the triggering of the key-phase signal is...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a reciprocating compressor operation state monitoring method, a system, a device and a storage medium. The method comprises the steps: carrying out the preprocessing of collected compressor vibration signals, and obtaining a vibration signal sample of a compressor in each operation period; according to the collected dynamic pressure and key phase signals in the compressor cylinder, a p-V diagram of the compressor in each operation cycle is obtained; performing feature extraction on each vibration signal sample to obtain features of the vibration signal samples; performing feature extraction on the p-V map of each operation cycle to obtain p-V map features; combining the characteristics of the vibration signal samples of the compressor in the same operation period with the characteristics of the p-V diagram to obtain a characteristic vector of the compressor in the operation period; calculating the mahalanobis distance of each feature vector and comparing the mahalanobis distance with a preset mahalanobis distance threshold value, and judging the operation state of the compressor. According to the method, under the condition that only normal samples are utilized, several characteristics are combined, whether the operation state of the reciprocating compressor is abnormal or not can be accurately and comprehensively judged.

Description

technical field [0001] The invention belongs to the technical field of compressors, and in particular relates to a method, system, equipment and storage medium for monitoring the operating state of a reciprocating compressor. Background technique [0002] The reciprocating compressor is the core equipment in the petrochemical industry, and its normal operation is directly related to the economic benefits and production safety of the enterprise. The compressor media of some process compressors are flammable and explosive gases such as hydrogen, ethylene, and natural gas, and they work under high pressure conditions. Once a serious failure occurs, it will not only cause huge economic losses, but may also cause casualties. Therefore, it is of great significance to study the abnormal detection technology of reciprocating compressors, find the abnormal conditions in the compressor as soon as possible, and take corresponding preventive measures. [0003] The structure of the reci...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G01M99/00
CPCG01M99/005G06F2218/00G06F2218/08
Inventor 马海辉余小玲吕倩叶君超
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com