The Research On The Energy Saving Of Compressed-air Pipeline Leaking Detection In Textile Mills

The air compressor has been applied comprehensively in textile industry and has become a big consumer of energy,especially in China. In recent years, issues of textile business seem to careen from one to another: exports retreating, low profit, less atomized production and urge need on energy-saving emission reduction,etc. What’s more, basic costs of textile industry arised due to the increase of electricity prices. Therefore, energy conservation of air compressor system is of great significance for cost cutting in the future textile enterprise.This thesis introduces completely about existing leaking features and leak-detecting means of compressed-air pipeline networks. Meanwhile we set up a compressed air leakage model for small holes to simulate and analyze the solutions. An improvement plan has been put forward on the basis of theoretical analysis and the field testing of textile mills.Firstly, set up a compressed air leakage model for small holes to analyze the main influence of aperture leak. According to the situation analysis, diameter of leakage hole and static pressure difference of internal-external pipeline are the main contents of textile testing. Simulate gas distribution of liquids by ANSYS-Fluent and analyze the influence of aperture leak diameter and pressure of the pipeline on leakage rate.Secondly, test two textile factories in Xianyang and Xi’an by intelligent gas leak detector ecoso. The one in Xianyang has a history of 30 years with several times transformed compressed-air pipeline and old gas appliances. While the other in Xi’an is a new one with advanced gas appliances. By comparing testing data of two different textile factories, validate the importance of textile leak detection and make economic analysis at the same time.Finally, the optimal pipe diameter of compressed-air pipe networks has been obtained on the basis of vast amount of theoretical calculations and comparisons of pressure loss between actual numerical value and theoretical value under recommend pipe diameter. Operation costs will cut down by 327000 yuan annually after optimization of compressed-air pipeline system.Hopefully the computational method and computational data can be available for reference of practical engineering.