Pilot flame system of heat accumulation type combustion system and heat accumulation type combustion system and switching method

Abstract

The invention discloses a pilot flame system of a heat accumulation type combustion system and the heat accumulation type combustion system and a switching method. The pilot flame system comprises two pilot flame burner bodies matched with heat accumulation type combustors in pair, wherein each pilot flame burner body is communicated with a corresponding heat accumulation type combustor through an independent air supply tube; the two air supply tubes are communicated through a serial connection tube; each pilot flame burner body comprises an inner tube, an outer tube sleeving the inner tube, and an ignition device; a one-way valve is mounted on each air supply tube. The switching method comprises the following steps: when the first heat accumulation type combustor is in a combustion state, keeping a first one-way valve matched with the first heat accumulation type combustor being in an opened state, keeping the second heat accumulation type combustor being in a smoke discharge state, and keeping a second one-way valve matched with the second heat accumulation type combustor being in a closed state. The pilot flame system has the characteristics of being simple in structure, good in energy saving effect, stable to work, simple and convenient to mount and repair, and the like.

Description

technical field [0001] The invention relates to the field of combustion equipment, in particular to an eternal flame system of a regenerative combustion system, a regenerative combustion system, and a switching method. Background technique [0002] With the increasingly severe energy crisis and the increasing demand for energy with the development of social economy, the research and development of energy-saving technology and equipment has become an inevitable trend. In my country, industrial furnaces are large energy consumers, accounting for about 25% of the total energy consumption in the country, and the energy utilization rate is generally low, about 20%, and their energy saving potential is relatively large. The regenerative burner is a burner with great energy-saving effect applied to industrial furnaces. Its working principle is to switch back and forth between the combustion and smoke exhaust states, and use the waste heat of the flue gas to preheat the combustion a...

AI Technical Summary

Problems solved by technology

However, the combustion-supporting air volume of the permanent flame system can reach 50% of the combustion-supporting air volume of the main fire, and this part of the air cannot use the waste heat of the flue gas, so the energy-saving effect cannot be achieved

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