Low-power burner combustion control system and method for continuous annealing furnace
A continuous annealing furnace and low-power technology, applied in the field of cold-rolled strips, can solve the problem that the control valve cannot control the gas flow and temperature, and achieve the effect of reducing ignition failure rate and temperature difference
Active Publication Date: 2014-11-19
SHOUGANG CORPORATION
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a low-power continuous annealing furnace burner combustion control system and its method, which eliminates the technical problem that the dead zone of the control valve cannot control the gas flow and temperature in the prior art
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[0024] The embodiment of the present invention provides a low-power continuous annealing furnace burner combustion control system, which controls the DREVER continuous annealing furnace at low temperature and low power, including a temperature difference calculation module, a temperature difference application value module, a heating load module and an adjustment module;
[0025] Wherein, the temperature difference calculation module is used to calculate the temperature difference value of the heating control zone according to the on-site actual temperature value and the target temperature setting value of the heating control zone in the annealing furnace;
[0026] The temperature difference application value module is used to obtain the temperature difference application value of the heating control zone by comparing the temperature difference value and the maximum allowable deviation value of the heating control zone according to the actual temperature value and the heating r...
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The invention discloses a low-lower burner combustion control system and method for a continuous annealing furnace and belongs to the technical field of cold rolling strips. The system comprises a temperature difference calculation module, a temperature difference application module, a heating load module and an adjusting module, wherein the temperature difference calculation module is used for calculating to obtain a temperature difference value in a heating control area according to an on-site actual temperature value and a target temperature set value in the heating control area of the annealing furnace; the temperature difference application module is used for calculating to obtain a temperature difference application value according to the on-site actual temperature value, the temperature rise rate and the temperature difference value; the heating load module is used for calculating to obtain a heating load value in the heating control area according to the temperature difference application value; and the adjusting module is used for adjusting the gas regulating valve opening in the heating control area and controlling the burner combustion time according to the heating load value. The combustion time is controlled through the heating load, and the ignition failure rate is reduced.
Description
technical field [0001] The invention belongs to the technical field of cold-rolled strips, and in particular relates to a control system and method for burner combustion of a continuous annealing furnace under low power. Background technique [0002] In the traditional combustion control method, the heating of the annealing furnace is generally completed by adjusting the flow of fuel and air to make them fully mixed and burned, that is, during the heating process, the flow of fuel and air is continuously changed. However, in the case of high fuel calorific value, a small amount of fuel can meet the requirements of the heat treatment process, so the flow rates of fuel and air are relatively small, and the cross-section of the pipeline for conveying fuel is also relatively small. Control, the butterfly valve that controls the fuel flow must be made very small, and the response capability of the control system cannot meet the needs of flow changes, so the error in controlling t...
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IPC IPC(8): C21D11/00C21D1/26C21D9/46C21D9/56
Inventor 郭健名李卫锋陈圣杨柳智博刘丹刘璇漆雕韩鹏程
Owner SHOUGANG CORPORATION