Heavy oil burner protection and control system

Abstract

The invention discloses a heavy oil burner protection and control system. The system comprises two temperature sensors respectively arranged in an oil inlet and an oil outlet of a heavy oil burner, a comparator synchronously connected with the two temperature sensors, and a temperature control circuit synchronously connected with the comparator and the heavy oil burner. The heavy oil burner protection and control system, provided by the invention, can control the operation of the whole heavy oil burner according to the temperature difference of heavy oil entering and sprayed out from the burner, and can automatically close the heavy oil burner with excessive temperature difference to improve the product use safety and to prolong the product service life.

Description

technical field [0001] The invention belongs to the field of heavy oil burner safety, and specifically refers to a heavy oil burner protection control system used in a carbon roaster. Background technique [0002] At present, the automatic combustion control systems of similar roasters at home and abroad mostly use heavy oil and other oils as fuel oil. Because these fuel oils are of low quality and mostly viscous, do not have good flow properties and optimal liquefaction state, when the burner injects fuel oil into the furnace, it is necessary to atomize the injected fuel oil In order to achieve a better heating and combustion effect. In order to meet this condition, it is necessary to heat these fuel oils, and the current conventional methods are mainly electric heating, and because the atomization of heavy oil needs to be heated to 110°C, this heating method can only be realized on the oil road, and Not easy to achieve in the burner area. [0003] Because electric heati...

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Problems solved by technology

In order to meet this condition, it is necessary to heat these fuel oils, and the current conventional methods are mainly electric heating, and because the atomization of heavy oil needs to be heated to 110°C, this heating method can only be realized on the oil road, and Not easy to achieve in the burner area

[0003] Because electric heating cannot be used in the burner, the current automatic combustion control system of the roaster has the following deficiencies: First, the heated heavy oil in the oil circuit will still cool down after entering the burner, especially when there is too much When the branch burners are connected in series on the same oil path, the fuel oil passing through the burners from the head end to the end will still have a large degree of cooling, which will cause the heavy oil in the several burners at the end to be in a poor liquefaction state. As a result, the atomization effect of the injected fuel oil is poor or cannot be atomized, so that an oil line is formed and sprayed to the bottom of the furnace, resulting in a large temperature difference between the upper and lower sides of the furnace cavity, coking at the bottom of the furnace to block the fire path and burn the furnace body, affecting the quality of the product; Secondly, it will increase the consumption of fuel oil and increase the production cost; finally, due to poor atomization of fuel oil, it will also cause incomplete combustion, resulting in a large amount of heavy oil adhering to the flue, which is easy to catch fire, and the smoke emission is not up to standard

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