A system and method for self-adaptive regulation and control of low-temperature kiln exhaust fan

Abstract

The invention relates to the field of heat dissipation of low-temperature kilns, and aims to provide a system and method for self-adaptive regulation and control of low-temperature kiln smoke exhaust fans, wherein the system includes a smoke exhaust unit, an alarm unit, a processing unit and an energy regulation unit, and the smoke exhaust The unit includes a differential pressure sensor, a temperature sensor and a smoke exhaust fan. The smoke exhaust unit is arranged in the smoke exhaust pipe of the low-temperature kiln. The differential pressure sensor includes a first detection end and a second detection end, and is close to the low-temperature furnace One end of the furnace is provided with a first detection terminal, and the end far away from the low-temperature kiln is provided with a second detection terminal; the processing unit includes a display screen and a control unit, and the differential pressure sensor and the temperature sensor are respectively connected to the control unit connected, the output end of the control unit is connected with the power-on end of the smoke exhaust fan; the present invention has a reasonable structure, ingenious design, and is suitable for popularization.

Description

technical field [0001] The invention relates to the field of low-temperature kilns, in particular to a system and method for self-adaptive regulation and control of low-temperature kiln exhaust fans. Background technique [0002] Kilns are key energy-consuming equipment commonly used in industrial and mining enterprises. At present, there are a large number of low-temperature furnaces with exhaust gas temperature lower than 250 ℃ in Chinese enterprises, and the heat loss of exhaust gas is an important factor affecting the thermal efficiency of such equipment. Most enterprises only know whether their kilns can meet the requirements of the production process, but they know little about whether the exhaust fans and burners of these equipment match, and the thermal efficiency is high or low. Through a large number of field investigations and energy efficiency tests, it is found that in the flue gas discharged from most low-temperature kilns, the excess air coefficient is much h...

AI Technical Summary

Problems solved by technology

Through a large number of field investigations and energy efficiency tests, it is found that in the flue gas discharged from most low-temperature kilns, the excess air coefficient is much higher than the normal value, that is to say, the rated air volume of the exhaust fan is much greater than the amount of flue gas generated, which not only It will cause a large amount of heat to be discharged with the flue gas without participating in the effective heating process, and a large amount of heat will be used to heat the newly supplemented cold air, which greatly reduces the thermal efficiency of this type of equipment

But from the perspective of the enterprise, the enterprise can tolerate the high energy consumption of these equipment, but cannot accept that the replacement of a low-power smoke exhaust fan may cause the production process to be unable to meet the production process requirements when the output and the use environment fluctuate.

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