The device gives high-quality information on cylinder temperature distribution and enables the cooling system quality to be evaluated. By optimizing the cooling process cylinder service life can successfully extended, which in turn gives rise to considerable economic benefits.
The temperature sensor is a technical sensor with an embedded thermometer which scans temperature at a particular point and sends the measured values to a control unit. It often serves as a safety element to control the proper function of a system (protecting the system against over-heating).
A thermocouple is a source of electric current used mainly as a temperature sensor. It works using the principle of the thermoelectric effect. It can also be used as a reliable source of electric current, although its energy efficiency and output are low. It consists of two different metals connected in series by two connections (metal A – connection AB – metal B – connection BA – metal A). If the connections have mutually different temperatures, a different electric potential is generated in each connection, which is the source of current. The independent thermocouples are used as temperature sensors for temperatures within a range of hundreds of degrees. Sensitivity ranges within tens of microvolt per °C. For producing a current, the output of a single thermocouple is very small. Therefore, in practical use such thermocouples are combined in batteries.
A magnetic temperature sensor equipped with a thermocouple tape is intended for measuring the temperature of ferromagnetic components of metallurgical equipment. The sensor consists of a U-profile at the bottom of which a thermocouple is placed and at the end of which wings are positioned so as to be able to pivot, with an option to fix the position with the wing axes passing through the U-profile arms, whereby the wings are equipped with permanent magnets. Wing axes pass through long holes in the U-profile arms, which allows users to set the distance of the thermocouple from the measured surface. The protective ferromagnetic plates affixed on the magnets prevent the magnets from being damaged in contact with the measured surface. At least two identically oriented sensors, fixed using straps to a couple of guide bars, can form a measuring device for comprehensively measuring temperatures along the length of the cylinder.
The magnetic temperature sensor is protected as a utility model, and Jaroslav Horský is the originator of the concept of this invention.
JAROSLAV HORSKÝ is a respected expert in the field of applied mechanics and heat transfer. Since 1986 he has been working in the Faculty of Mechanical Engineering at Brno University of Technology, where today he holds the post of Head of the Heat Transfer and Fluid Flow Laboratory and Head of the Division of Power, Process and Environmental Engineering at the NETME Centre. His science-research activities are particularly centred on heat transfer, with applications in metallurgy, the steel industry and metal hot forming, and on the numerical models of cooling processes, heat processing, scaling etc. He is an author of a number of science papers in Czech and international specialist journals. He participates on a range of scientific projects and cooperates successfully with prominent Czech and foreign companies.
