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The application of infrared thermal imager fluke high temperature furnace

by:FOT     2020-07-17
吗? 吗? 吗? 吗? 吗? 吗? 吗? 吗? 吗? 吗? 吗? 吗? Cooling wall of blast furnace is important for cooling equipment, protect the blast furnace shell from the internal heat and damage, but the cooling wall may be because congestion loss of cooling water system, directly affects the service life of blast furnace and production safety. Fluke infrared thermal imager can detect the surface temperature distribution of blast furnace cooling stave and water-cooling system in and out of the water temperature, to ensure production safety and improve the service life of blast furnace. What is a blast furnace cooling wall? Cooling stave is also called the flat water tank, material has cast copper, cast steel, cast iron and steel weldments etc, more than all kinds of cooling plate blast furnace were used in the country. Cooling plate thickness of 70 ~ 110 mm, inside with seamless steel tube, cooling water in and out of the tube and the furnace shell welding, 1 piece of cooling plate around the area of 2 square metre. Cooling principle is through the cooling of the cooling stave wall to form a closed around the blast furnace shell internal cooling structure, the cooling system for the refractory materials and the direct cooling of the furnace shell. To prolong the service life of refractory material and protect the furnace shell. As the dark area in the middle of the air supply pipe cooling stave is what are the means to detect air supply pipe? At present in iron usually use infrared thermometer, thermocouple to test the cooling stave. What are the problems the means to detect the cooling wall? For 1 piece of cooling stave area of about 2 square meters, using infrared thermometer and thermocouple can't in a short period of time ( General missile d etection time 8 - blast furnace 12 hours) The installation of hundreds of blast furnace cooling wall all effective detection, this leads to the residual risk. Fluke infrared thermal imager were used to detect the benefits of blast furnace cooling stave cooling stave in early defects, reduce delay repair time; Quickly and accurately judge the place of the cooling wall defect and damage; Effectively guide the maintenance and repair. Determined by infrared thermal images of blast furnace cooling wall defect parts, the severity of the defect analysis and defect size, making construction plan. Finally, using infrared thermal image figure acceptance of construction quality, to ensure the safe and reliable operation of the equipment after. Blast furnace cooling wall outlet temperature in 48 cooling cycle. 4 ℃, the equipment running normally how to use the infrared thermal imager for testing? By using infrared thermal image instrument for detecting the surface partition piece of blast furnace, and through infrared analysis software, to get the temperature distribution of hot image analysis. Parts, for the presence of cooling stave based on surface temperature distribution of heat map analysis, find out the part of the relatively high temperature, cooling stave damage or furnace lining defects. General cooling wall surface temperature within 50 ℃, if detection of cooling stave temperature over 100 ℃, while the cooling wall of water circulation system has a problem, if the surface of the cooling stave temperature over 300 ℃, maintenance must be as soon as possible, otherwise may burn through the blast furnace shell in a short time. Why would blast furnace cooling wall failure? The calcium and magnesium ions in water in the form of oxide scale precipitation, reduce the cooling effect, after a long time can lead to clogged cooling cycle. Therefore, we should avoid the local cooling water in cooling equipment, methods and control is to control the water temperature in and out of the water temperature difference. General requirements should be below 35 ℃, water temperature because of the climate, also should not be more than 40 ℃. And water temperature and water quality, the stability of the general industrial circulating water temperature does not exceed 50 ~ 60 ℃. Cooling stave are detected using infrared thermal imager, the matters needing attention must stop at blast furnace furnace maintenance can be carried out only when testing; At the scene of the lower part of blast furnace cooling wall darker, bring illumination tools; Cooling wall near the high temperature equipment or pipeline, it is recommended that the wear all work overalls, boots and protective gloves. Iron industry application of the metallurgical industry. Fluke corporation ( FLUKE) Fluke company was founded in 1948, is a world leader electronic test tools, over the years, create and develop a specific technology market, for various industries to provide high quality measurement and detection fault product. Fluke wide coverage of users, including technical personnel, engineers, metrologists and so on, they use fluke test tools for industrial electricity, the installation of electrical equipment and process of calibration, the fault diagnosis and management, and to control the quality. Over the past five years, the award-winning fluke test tool, won the 'test and measurement world' award for best test tools, the control project engineer choice awards for more than 50 year products, by users praise. 吗? 吗? 吗? 吗? 吗? 吗? 吗? 吗? 吗? 吗? 吗? 吗?
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