SDS Tunnel Jet Fan Safety Status Online Monitoring System

1.1 Overview

To meet the requirements of intelligent operation, it is necessary to adopt an online intelligent diagnosis and warning system for fans, which can achieve the purpose of intelligent operation. Based on the data collected by vibration sensors, static displacement sensors, current sensors, etc. installed in the tunnel jet fan, the operating conditions and hidden dangers of the fan can be monitored in real time. It has functions such as automatic inspection, maintenance reminder, threshold warning, fault cause analysis, diagnosis and warning push. Real time monitoring of fan operation efficiency through an online intelligent diagnosis and warning system, improving fan operation efficiency, reducing maintenance costs for inspection personnel, reducing costs and increasing profits, and ensuring safe operation of fans.
1.2 The reference standards for the design of this system are as follows

According to relevant requirements, the standards to be implemented for the design, production, installation, and commissioning of the online monitoring and early warning system are determined as follows

GB 50174-2017 Data Center Design Specification
GB/T 35319-2017 Interface Requirements for Internet of Things Systems
GB/T 34068-2017 Internet of Things Overall Technology Intelligent Sensor Interface Specification
GB/T 6587-2012 General Specification for Electronic Measuring Instruments
JJF 1071-2010 National Metrology Calibration Specification Compilation Rules
JJG 676-2000 Verification Regulations for Working Vibration Meters
JJF 1094-2002 Evaluation of Characteristics of Measuring Instruments
GB/T 191-2008 Packaging, Storage and Transportation Symbols
GJB368A-1994 Equipment Maintainability General Outline
GJB450A-2004 General Requirements for Equipment Reliability Work
GJB900-1990 General Outline for System Security
GJB12101991 Implementation of Grounding, Overlapping and Shielding Design
GJB1371-1992 Equipment Support Analysis
GJB1406A-2005K Quality Assurance Program Requirements
GJB2547-1995 Equipment Testability Outline
GJB3206-1998 Technical Status Management
GJB3872-1999 General Requirements for Equipment Comprehensive Support
GJB5432-2005 Equipment User Technical Data Planning and Compilation Requirements

2 Technical requirements for project products

2.1 Data Collection Fault Diagnosis and Early Warning System

The on-site warning system is equipped with high-speed synchronous acquisition module, status data acquisition module, communication network port, fiber optic interface, 4G hotspot module, 24V conversion power supply, and various sensors;

The on-site early warning system can achieve data collection and storage of various sensor signals, upload data, and provide status evaluation conclusion reports of equipment components through cloud platform dedicated software. The system comes with a 4G hotspot module, which can send warning signals to the operator's mobile phone WeChat or APP through wired or wireless networks, reminding maintenance personnel to carry out timely repairs and maintenance, and can achieve remote monitoring. The system can be connected to an external mobile terminal for local analysis and diagnosis or offline analysis, or can be remotely transmitted to the big data management platform through the Internet of Things or the Internet for remote monitoring and analysis.

Module types: high-speed synchronous acquisition module, status acquisition module, 4G hotspot module, power module, etc

Collection method: Continuous high-speed synchronous collection, interval synchronous collection can be configured

Number of channels: Each module has 8 channels, supports hot swapping, and supports up to 80 channels of 250KHZ continuous acquisition

Sampling rate: 2.56KHz, 5.12KHz, 10.24KHz, 12.8KHz, 25.6KHz, 51.2KHz, 64KHz, 128KHz can be configured arbitrarily

A/D resolution: 24 bits

Communication interface: 1 isolated RS485, 1 optical port, 1 RJ45 network port