| Authors |
Konovalenko Artem Aleksandrovich, postgraduate student, Volgograd State Technical University (28 Lenin avenue, Volgograd, Russia), E-mail: artyom.konovalenko34@gmail.com
Nefed'ev Aleksey Ivanovich, doctor of technical sciences, professor, sub-department of electrical engineering, Volgograd State Technical University (28 Lenin avenue, Volgograd, Russia), E-mail: nefediev@rambler.ru
Nefed'ev Dmitriy Ivanovich, doctor of technical sciences, professor, sub-department of information-measuring equipment and metrology, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: iit@pnzgu.ru
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| Abstract |
Background. The article is devoted to the problem of controlling the presence of a stably burning flame in boiler furnaces.
Materials and methods. various methods are considered that are used in the creation of flame monitoring sensors, such as direct control methods (ultrasonic, thermometric, ionization and most commonly used photoelectric) and indirect control (monitoring of vacuum in the furnace, pressure of fuel in the supply line, pressure or its difference in front of the burner and control over the presence of a constant source of ignition. The main attention is paid to the properties of the flame and the features of the operation of photoelectric sensors. Problem and solution. The reliability of the operation of boilers depends entirely on the correct choice of flame monitoring sensors. The authors concluded that in order to increase the reliability of the operation and to reduce the number of boiler shutdowns due to the error signal of the flame sensor, intelligent combined flame sensors must be used, working on several principles that are fundamentally independent of each other, which will allow for an increased reliability in determining the presence of a flame in furnace boiler.
Results. To solve this problem, a sensor for selective control of the torch flame was developed, combining two principles of operation: optical and ionization, a structural diagram of the sensor and its design were presented.
Conclusions. Thus, the combination in one device of two sensors operating on principles that are fundamentally independent of each other will allow to provide increased reliability of detecting the presence of a flame in the furnace of the boiler.
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| Key words |
photoelectric flame sensor, ionization flame sensor, boiler, selective control, combination sensor
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