Intelligent monitoring system for boiler and heat exchange station

Abstract

The invention relates to an intelligent monitoring system for a boiler and a heat exchange station and a method thereof, which belong to the technical fields of production monitoring and security management. The system comprises a main system in a central control room, a plurality of boiler monitoring subsystems which are respectively connected with the main system in the central control room and a plurality of heat exchange station monitoring subsystems. The method comprises the following steps: parameters and video signals on site are collected and transmitted in real time and transmitted to a host machine in the central control room after being converted and compressed; the host machine carries out comprehensive processes of intelligent analysis, dynamic display, prewarning and warning and management for the received signals and transmit control commands to the monitoring subsystems to carry out control; and the monitoring subsystems can be cooperated with the central room to carry out monitoring or independently carries out monitoring to realize automatic control. The invention can realize real-time and dynamic intelligent control, prewarning and warning, security management and automatic monitoring for a large boiler or a boiler group and a heating network system and has the advantages of energy saving, consumption reduction, comprehensive analysis, safety, stability and economic operation.

Description

technical field [0001] The invention belongs to the technical field of production monitoring and management, in particular to a real-time dynamic intelligent monitoring method for the operation of boilers and heat exchange stations. technical background [0002] The central heating system is a complex process system with multiple variables, strong coupling, strong interference, and large lag. Its structure is complex and there are many equipments. Sensors, controllers, actuators, frequency converters, fans, valves and pumps, etc.) constitute the primary system, and the pipeline network from the heat exchanger to the heat user and its auxiliary equipment constitute the secondary system. Equipment such as fans, grates and water pumps are boilers. The air blower sends air into the furnace, the grate sends coal into the furnace for combustion, the induced draft fan will generate flue gas out of the furnace body, the circulation pump realizes the circulation of water in the pipel...

AI Technical Summary

Problems solved by technology

The horizontal imbalance of the heating network and the indoor vertical imbalance, that is, the hydraulic and thermal imbalance of heating between buildings and heating floors are very common, making many heating systems in the working condition of large flow and low temperature difference operation, resulting in a large waste of energy

When the outdoor temperature changes and the demand for heat in different periods is different, that is, the load changes, it is necessary to adjust the heating output of the boiler in time to achieve the purpose of energy saving; when the boiler is short of water or the water in the heating network leaks, it is necessary to stop the boiler or close it in time Corresponding valves, but the traditional monitoring method cannot analyze all kinds of information in real time, comprehensively and accurately, and it is difficult to timely and correctly evaluate the changes in heat demand and the operation of boilers and heat exchange stations, resulting in the inability to adjust the heat supply output in a timely and reasonable manner , it is difficult to troubleshoot and the risk of system operation is high

In traditional boiler control, damper baffles and valves are used to control the flow of blowers, induced draft fans, water pumps and circulation pumps. Since the speeds of fans and pumps cannot be adjusted in time as the load changes, resulting in high energy consumption and equipment loss

At the same time, due to the lack of real-time and comprehensive monitoring and safety analysis of the operation status of key points of the boiler and heating network system, it is impossible to timely alarm and deal with the failure or danger in the system

When the heating network load increases to the point where multiple boilers need to be monitored collaboratively, it is more difficult to achieve stable and economical operation of the overall system only by manual control or boiler body control

In this case, it is very difficult to maintain the long-term, economical and stable operation of the entire boiler and heating system, it is difficult to control the quality of heating supply and the purpose of energy saving, and it is impossible to achieve the smooth and safe operation of the entire heating system under optimal conditions

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