• 系統概述

由于礦山作業對通風的特殊要求，通風系統、設施的可靠性承擔著巨大的責任，一個良好的通風系統就是一個礦的巨大財富。礦用主通風機在線監控與故障診斷系統主要是針對金屬礦山主通風機研發。該系統符合最新版《金屬非金屬地下礦山監測監控系統建設規范》，參考標準MT 421-1996《煤礦用主要通風機現場性能參數測定方法》、 GB/T 10178-2006《工業通風機現場性能試驗》為依據，應用工業計算機監測技術對礦用大型通風機的運行狀態進行連續在線測量與處理，以多種方式提供通風機運行狀態的各種數據，保障通風機的安全運行和方便風機的性能測試。

本系統采用國際先進的研華工業控制計算機及西門子300系列PLC，防塵、抗震、抗干擾能力強，性能穩定，功能強大,擴展方便;測量傳感器、變送器均選用國際國內名牌產品，誤差小于0.5%;輸入通道板的分辨率為1/27648,系統采用一系列抗干擾措施，保證測量誤差小于2%。

System overview

Due to the special requirements of mine operation for ventilation, the reliability of ventilation system and facilities bears great responsibility, and a good ventilation system is a great wealth of a mine. The online monitoring and fault diagnosis system of mine main ventilator is mainly developed for metal mine main ventilator. The system conforms to the latest edition of the "Metal and Non-metal underground mine monitoring and monitoring system construction Code", referring to the standards MT 421-1996 "Main fan field performance parameter determination Method for coal mine", GB/T 10178-2006 "Industrial fan field performance test" as the basis. The industrial computer monitoring technology is applied to continuously measure and process the running state of the large fan used in mining, and various data of the running state of the fan are provided in various ways to ensure the safe operation of the fan and facilitate the performance test of the fan.

This system uses the international advanced Advantech industrial control computer and Siemens 300 series PLC, dustproof, seismic, anti-interference ability is strong, stable performance, powerful function, easy to expand; Measuring sensors, transmitters are selected international and domestic famous brand products, error is less than 0.5%; The resolution of the input channel plate is 1/27648, and the system adopts a series of anti-interference measures to ensure that the measurement error is less than 2%.

• 系統功能特點

系統具有在線幫助、狀態監控、故障報警、信息查詢與打印、數據遠程傳輸、遠程控制六大功能。

1)監測電機電量參數:三相電壓和線電壓、三相電流，有功功率、無功功率、視在功率、功率因數，頻率等電量;

2)監測電機定子每相繞組溫度，軸承兩端溫度(電機自帶溫度傳感器);3)監測風機的水平和垂直振動;

3)監測風機靜壓、全壓、靜壓效率、全壓效率、風速、流量;5)監測一氧化碳濃度;

4)監測風機開停信號、正反風信號，變頻器運行狀態;

5)控制主通風機正常狀態下的開、停，控制礦井需返風時的倒轉反風;

6)遠程手動/自動轉速調節(變頻電控):在監控界面手動輸入頻率，或由壓力傳感器信號反饋回來，系統根據該信號進行自動反饋調節變頻頻率來改變風機轉速，兩種方式由操作員選擇;

7)自動記錄通風機運行時的監測參數值，并自動生成表格，有關信號的圖譜、曲線圖以及數據顯示直觀簡明;提供歷史數據的查詢;

8)顯示系統的實時報警信息，并提供歷史報警信息的查詢;

9)主通風機監控系統具有工業以太網接口、PROFIBUS DP總線接口、CAN現場工業總線接口、RS485總線接口，可接入其他監控設備和傳感器?？山尤雴挝槐O控系統網絡平臺，實現監控數據網絡共享，經授權的網絡終端用戶隨時監測通風機的狀態、運行數據、故障情況，具有系統和節點自診斷功能，并可對通風機遠程操作和管理;

10)遠程監控站在線幫助功能，在接到用戶請求幫助的消息后，彈出一個關于相關主題的幫助窗口，將用戶所需的幫助信息顯示出來。操作人員可隨時查詢幫助文件，解決操作中遇到的疑難問題。

System function characteristics

The system has six functions: online help, status monitoring, fault alarm, information query and printing, remote data transmission and remote control.

1) Monitoring motor power parameters: three-phase voltage and line voltage, three-phase current, active power, reactive power, apparent power, power factor, frequency and other power;

2) Monitor the winding temperature of each phase of the motor stator and the temperature of both ends of the bearing (the motor comes with a temperature sensor); 3) Monitor the horizontal and vertical vibration of the fan;

3) Monitor the static pressure, total pressure, static pressure efficiency, total pressure efficiency, wind speed, flow rate of the fan; 5) Monitoring carbon monoxide concentration;

4) Monitor the fan start and stop signal, positive and negative wind signal, inverter operation status;

5) Control the opening and stopping of the main ventilator under normal conditions, and control the reverse reverse air when the mine needs to return air;

6) Remote manual/automatic speed adjustment (frequency conversion electronic control): manually input the frequency in the monitoring interface, or the pressure sensor signal feedback back, the system according to the signal automatic feedback to adjust the frequency conversion to change the fan speed, the two ways are selected by the operator;

7) Automatically record the monitoring parameter values of the fan during operation, and automatically generate a table, and the graph, curve and data display of the relevant signals are intuitive and concise; Provide historical data query;

8) Display real-time alarm information of the system, and provide historical alarm information query;

9) The main fan monitoring system has industrial Ethernet interface, PROFIBUS DP bus interface, CAN field industrial bus interface, RS485 bus interface, and can access other monitoring equipment and sensors. Can access the unit monitoring system network platform, to achieve monitoring data network sharing, authorized network end users at any time to monitor the status of the fan, operating data, fault situation, with the system and node self-diagnosis function, and can remotely operate and manage the fan;

10) Remote monitoring station online help function, after receiving the user's request for help message, pop up a help window on related topics, the user needs to show the help information. Operators can query help files at any time to solve difficult problems encountered in the operation.