High-cost performance system for controlling combustion redundancy of coal-fired heat transfer material heater

A heat carrier furnace and redundant control technology, which is applied in the combustion method, combustion control, and fuel supply adjustment, etc., can solve the difficulty of combustion control of coal-fired heat medium furnace, failure of CPU module protection, and difficult to achieve temperature control accuracy, etc. problem, to achieve a good modular structure, good performance, good real-time effect

Active Publication Date: 2010-06-23
CHINA SHIPPING NETWORK TECH
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the high cost of the above-mentioned conventional redundant system, or the failure to protect and the combustion control of the coal-fired heat medium furnace are difficult for the faults other than the CPU module. When the thermal load requires higher temperature acc

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  • High-cost performance system for controlling combustion redundancy of coal-fired heat transfer material heater
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  • High-cost performance system for controlling combustion redundancy of coal-fired heat transfer material heater

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and embodiment the present invention will be further described

[0026] The following is a block diagram of the DCS control system structure of nine 7 million kcal coal-fired heat medium furnaces (as attached figure 1 shown).

[0027] An automatic heat medium furnace engineering control system of the present invention controls nine coal-fired heat medium furnace systems including three heat supply circulation systems.

[0028] The upper layer consists of four operator stations, one engineer station and Ethernet switches. The operator station and the engineer station are respectively equipped with Advantech PIII industrial computer, ViewSonic 19 o'clock LCD screen, EPSON printer, etc. Under normal circumstances, four operator stations operate and control four subsystems (corresponding to four system control cabinets of C01, C02, C03, and C04), and one engineer station is used for system management. The software and hardwa...

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Abstract

The invention discloses a high-cost performance system for controlling combustion redundancy of a coal-fired heat transfer material heater, which relates to the technical field of DCS industrial control systems, in particular to the system for controlling the combustion redundancy of the coal-fired heat transfer material heater of a large-scale chain coal bed. The system comprises a PLC, an operation management system, a frequency conversion control technical system and a conventional electric control system. The combustion control and the heating circulation control of the control system areensured by two sets of control systems and bumpless control right transfer is realized, and the two sets of systems have low cost and high cost performance, and ensure the safety and the reliability of heat medium heater control system; a humanized operator interface is adopted and an expert diagnostic system is provided; and control software is designed with a standardized, functionalized and modularized structure and has easily expanded functions, add programs and adjust parameters. The system ensures the safe production of a heat medium heater, heat medium temperature control accuracy and the probability of improving the combustion efficiency of fire coal, and has good control effect and relatively lower running cost.

Description

technical field [0001] The invention relates to the technical field of DCS industrial control systems, in particular to a redundant combustion control system of a large-scale chain coal seam heat carrier furnace (referred to as "heat medium furnace"). Background technique [0002] As a large-scale heating equipment, large-scale heat carrier furnaces (referred to as "heat medium furnaces") are widely used in many industries such as chemical industry, petrochemical industry, metallurgy, textile, and plastics. The rapid development of industry is inseparable from heating equipment. Therefore, there is a relatively large market demand for heat conversion equipment such as large-scale heat medium furnaces. [0003] Coal-fired heat medium furnace is a kind of coal-fired furnace (fired in the coal seam of the grate chain), which uses heat transfer oil as the heat carrier (referred to as the heat medium). Continue to return to the once-through special industrial furnace for reheati...

Claims

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Application Information

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IPC IPC(8): F23N1/02F23N5/24
Inventor 严敏陈洁郭胜军周智卢志航严海王超
Owner CHINA SHIPPING NETWORK TECH
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