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The difference in the application of the nozzle in each industry


   The nozzle is small, but its effect can not be ignor […]

   The nozzle is small, but its effect can not be ignored. Nozzle operating performance is good or bad, a direct impact on the entire equipment and even the entire production plant of the normal operation. Ordinary industrial nozzles are divided into the following categories:
1. According to the material classification, can be divided into: metal nozzle, plastic nozzle, ceramic nozzle, alloy nozzle;
2. According to the spray shape classification, can be divided into tapered nozzle, square nozzle, rectangular nozzle, oval nozzle, fan-shaped nozzle, column flow (DC) nozzle, etc., except the other two kinds of nozzles are solid and hollow two;
According to the application industry classification, can be divided into petrochemical nozzles, agricultural nozzles, textile nozzles, paper nozzles, printing nozzles, environmental protection (desulfurization, denitrification, denitrification, dust, etc.) nozzles, steel metallurgical nozzles, coking nozzles, Nozzles and so on;
4. According to the classification of spray media can be divided into water nozzles, oil nozzles, powder nozzle, gas nozzle, mixed media nozzle, coal slurry nozzle (such as Texaco, four nozzles) and so on.
Such as fuel burners, in the device under the given pressure and flow, not only to fully atomize the fuel completely burned, but also to the atomization of the fuel was a certain distribution to adapt to the shape of the furnace, must also be formed in front of the burner A black area that can not let the oil burn to protect the burner, and when the burner can not meet these requirements, the accident will often occur and affect the operation of the entire combustion device. In addition, chemical production in the common raw material gas washing, gas-liquid contact mass transfer or heat transfer unit nozzle can replace the commonly used trays, packing and liquid distributor, both can save materials and investment, but also to overcome the tray, Fillers and other easy to plug and shortcomings, so that operation and maintenance becomes very simple. However, to achieve these unit operations efficiently, there is sufficient contact area and contact time for both gas and liquid, and the droplets to be ejected should be small and uniform, but too small droplets will be taken away by the gas to form a serious Fog entrainment, thus affecting the efficiency of the whole tower and the operation of downstream equipment.

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