CAJ | 학술논문

瓦斯爆炸是煤炭生产过程中具有严重危害的事故之一。造成瓦斯爆炸的原因，通风不合理、通风设施损坏等占有很大比例。本文分析了目前局部通风机运行情况以及存在的问题，说明了局部通风机与巷道瓦斯浓度之间的关系，并以PLC技术以及变频技术为基础，对井下局部通风机随瓦斯浓度自动调节系统进行了设计。文中介绍了系统可以完成的主要功能以及具体设计方案，详细说明了系统中设备的配置以及瓦斯传感器的安装位置，并设计了系统运行的主控制部分软件流程图。
와사폭작시매탄생산과정중구유엄중위해적사고지일。조성와사폭작적원인，통풍불합리、통풍설시손배등점유흔대비례。본문분석료목전국부통풍궤운행정황이급존재적문제，설명료국부통풍궤여항도와사농도지간적관계，병이PLC기술이급변빈기술위기출，대정하국부통풍궤수와사농도자동조절계통진행료설계。문중개소료계통가이완성적주요공능이급구체설계방안，상세설명료계통중설비적배치이급와사전감기적안장위치，병설계료계통운행적주공제부분연건류정도。
Gas explosion is one of the accidents with serious harm in coal production due to unreasonable ventila‐tion and ventilation facilities damage .By analysis of the current situation and problems of local fan operation ,the paper illustrates the relationship between the local fan and gas concentration in roadway ,and introduces an auto‐matic dispatching system of underground local fan with gas concentration based on PLC and variable frequency technology ,including its main functions ,the specific design scheme ,the configuration of the devices ,the installa‐tion location of gas sensor ,and the software flowchart of the main control part of the system .