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Safety measures for high-temperature industrial television
Summary: The lens of the high-temperature industrial television uses a sapphire mirror, and the bonding material uses a high-temperature resistant material, enabling the pinhole lens to withstand high temperatures of 200℃, and preventing the lens from burning even in case of accidents. Therefore, forced air cooling can meet the requirements. The necessary safety measures for high-temperature industrial television are mainly due to the fact that the above heat transfer calculation is based on semi-empirical criteria derived from experimental research. However, in actual situations, the furnace temperature fluctuates greatly, and the heat transfer method is not necessarily entirely thermal radiation. Therefore, it is necessary to have a certain deviation. To ensure that the equipment can operate continuously for a long time, these precautions must be taken.
High-temperature industrial television The lens uses a sapphire lens surface, and the bonding material uses a high-temperature resistant material, allowing the pinhole lens to withstand high temperatures of 200℃, and the lens will not be burned even in case of accidents. Therefore, forced air cooling can meet the requirements. The necessary safety measures for high-temperature industrial television are mainly because the above heat transfer calculation is based on semi-empirical criteria obtained from experimental research, while in actual situations, the furnace temperature fluctuates greatly, and the heat transfer method is not necessarily completely thermal radiation, so it is necessary to have a certain deviation. To ensure that the equipment can work continuously for a long time, these precautions must be taken:
The magnification safety factor of the high-temperature industrial television also has another airflow in the inner cavity of the camera and lens, that is, a double-compartment forced air-cooled type. On the one hand, it can remove the heat generated by the camera, and on the other hand, it uses air to suppress the flame and force the lens to be as light as possible. Affected by radiant heat. When the kiln temperature and ambient temperature are high, the equipment uses eddy current cooling. Eddy current cooling uses cold tubes produced by the American Diamond Company. The compressed air of the refrigeration camera is first cooled through the cold tube (the temperature difference is determined by the pressure and flow rate of the compressed air. When the pressure is 4Kg and the flow rate is 14m3/h, the temperature difference can reach 23℃), further reducing the camera temperature and ensuring safe use. Another compressed air passage is set inside the furnace door, and the compressed air is kept unobstructed to ensure that after the probe cover exits the furnace wall, there is still an air passage to suppress the flame and dust, preventing the furnace door mechanism and outlet device from catching fire directly, or even damaging the electrical components in the outlet device, and damaging the equipment.
The necessary maintenance measures for high-temperature industrial television are because the compressed air is directly blown towards the camera and its compartment, so it must be cleaned and filtered to remove water, oil, and dust. This equipment uses a two-stage filtration method. The primary filter uses a large filter box, and the maintenance cycle is generally 2-3 months. The secondary filter uses an automatic water removal, automatic oil removal, precision filter, and precision oil remover, and requires no maintenance. This greatly reduces the maintenance workload of the equipment.
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