Abstract

The article is devoted to a very urgent problem: reducing the cost of the fuel component in the production of electricity at power plants in Russia, namely, abandoning expensive fuel oil during the kindling of the boiler and the transitioning to the use of coal dust for this purpose. One of the ways to organize such kindling is the use of plasma technology to ignite coal dust. This technology is based on the thermochemical preparation of pulverized coal using an electric arc arising between the electrodes of the plasmatron. A stream of air passes through the arc, forming a plasma, which, meeting with the stream of air mixture, heats it, and promotes the release of volatile substances and the ignition of coal dust. Back in 1994, the first experiments on the implementation of such a system were carried out at the Gusinoozerskaya TPP. It turned out to be effective, but it had a number of significant drawbacks that limited its use. The main one was the low service life of the plasmatron cathode and muffle burner. In 2019, work was organized to modernize the plasma system aimed at increasing the resource of the main units of the plasma-ignition system. To solve a complex of problems, the specialists of OAO VTI proposed technical solutions for the design of a muffle burner, a cleaning system, and the automatic regulation of water and air supply to the plasma torch; a software package was developed to control the operation of the oil-free plasma-ignition system and control its parameters. Installation and testing of the modernized system for one of the pilot burners of the TPE-215 boiler was carried out. The specialists of the Institute of Physics and Mathematics (Siberian Branch, Russian Academy of Sciences) developed the design of the plasmatron and carried out its start-up testing. It is recommended to apply the results of the work to the rest of the boiler ignition burners. This article is devoted to the experience of upgrading the existing oil-free ignition system at the Gusinoozerskaya TPP.

中文翻译：

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通过Gusinoozerskaya TPP现代化的等离子点火系统提高效率和增加资源

摘要

该文章致力于解决一个非常紧迫的问题：降低俄罗斯发电厂的电力生产中燃料成分的成本，即在锅炉点燃过程中放弃昂贵的燃料油，以及过渡到使用煤粉作为燃料。这个目的。组织这种点燃的一种方式是使用等离子技术点燃煤尘。该技术基于利用等离子加速器电极之间产生的电弧对煤粉进行热化学制备。空气流通过电弧，形成等离子，与空气混合物流相遇，将其加热，并促进挥发性物质的释放和煤粉的着火。早在1994年，就在Gusinoozerskaya TPP进行了这种系统实施的首次实验。事实证明它是有效的，但是它有许多严重的缺点，限制了它的使用。主要的原因是等离子加速器阴极和马弗炉的使用寿命低。在2019年，组织了工作以使等离子系统现代化，旨在增加等离子点火系统主要单元的资源。为了解决复杂的问题，OAO VTI的专家提出了技术解决方案，用于设计马弗炉，清洗系统以及自动调节等离子炬的水和空气供应。开发了一个软件包来控制无油等离子体点火系统的运行并控制其参数。对TPE-215锅炉的一个引燃器进行了现代化系统的安装和测试。物理与数学研究所（西伯利亚分校）的专家，俄罗斯科学院（Russian Academy of Sciences）开发了等离子加速器的设计并进行了启动测试。建议将工作结果应用于其余的锅炉点火燃烧器。本文专门介绍在Gusinoozerskaya TPP上升级现有无油点火系统的经验。