Flat flame-crossover heat-accumulation type radiant tube combustion device
A regenerative radiant tube and combustion device technology, applied in the direction of burners, combustion methods, combustion types, etc., can solve the problems of cramped space, difficult installation, high investment cost, etc., and achieve surface power improvement, space reduction, and convenient layout Effect
Pending Publication Date: 2017-05-10
SHENWU TECH GRP CO LTD
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Problems solved by technology
But there are the following technical defects in the above-mentioned patent: 1) the regenerative radiant tube burner is only suitable for furnaces with small scale output. Taking the vertical pyrolysis furnace as an example, the furnace type has 300-600 radiant tubes, not only The installation is difficult, the space is cramped, and the difficulty of debugging and maintenance is even more difficult to imagine
2) With the regenerative tube burner, the temperature of the radiant tube in the axial direction is difficult to achieve uniformity due to the flame burning in the radiant tube, and the local high temperature also restricts the use range of the radiant tube
3) The ignition system and equipment used by the radiant tube under the condition of relatively large consumption are very complicated, and the investment cost is very high
Method used
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Embodiment 1
[0041] First, each burner extends the burner brick 5 into the opening of the combustion chamber 16, and uses refractory fiber felt to plug the gap tightly, and connects the connecting bolts between the outer metal flange plate of the burner brick 5 and the combustion chamber 16. Tighten the connection, then connect the connecting flange of the air body 2 with the flange of the burner brick with bolts, and install it firmly, fasten the cover plate 1 and the air body with bolts, and install the insulation layer 3 inside the air body , forming three independent cavities where the heat storage body is placed, and the heat storage body 4 is placed inside it. The combustion chamber 16 is connected to the radiant tube 13 by bolts through respective radiant tube connecting flanges 18. The radiant tubes can be placed in the furnace body in a horizontal manner in slices, or arranged vertically in the furnace body. The process conditions are combined, the metal flange of the air body in ...
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The invention provides a flat flame-crossover heat-accumulating type radiant tube combustion device. The device comprises a single heat-accumulating type combustor, a furnace body, at least three radiant tubes, an igniter burner, an igniter burner casing pipe, at least two combustors, a four-way valve, and a radiant tube connecting flange, wherein the air single heat-accumulating type combustor comprises a cover plate, an air body, an insulating layer, a heat accumulator, a burner block, a coal gas flame-crossover tube, an air nozzle block, an air swirl vane, a coal gas flame-crossover branch opening, an air flame-crossover branch opening and a main coal gas nozzle. According to the flat flame-crossover heat-accumulating type radiant tube combustion device, the temperature requirements of a radiant tube combustor in different application fields can be met, at the same time the uniformity of the temperature inside the radiant tube is improved, and the waste heat can be more effectively recycled; meanwhile, auxiliary flues which are added due to excess gas volume are saved, the investment in relevant corollary equipment of the radiant tube combustor, the igniter burner and the like is saved, and the system is simplified.
Description
technical field [0001] The invention belongs to the technical field of gas heat storage combustion, and in particular relates to a multi-tube bundle integrated radiant tube combustion device adopting a branch tube flat cross-flame ignition mode. Background technique [0002] The gas radiant tube mainly uses coal gas as fuel, burns in a special sealed casing, and transfers heat to the heated object in the form of heat radiation through the heated casing surface, and the combustion product does not contact the heated object; regenerative gas The radiant tube uses the sensible heat of the flue gas after combustion in the casing to preheat the combustion air or gas through the arrangement of the regenerator. It has the characteristics of high combustion thermal efficiency, stable operation, and high equipment reliability. It is widely used in various heat treatment furnaces and continuous annealing furnaces. stove etc. According to the characteristics of the radiant tube burner...
Claims
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IPC IPC(8): F23D14/12F23D14/66
CPCF23D14/12F23D14/66Y02E20/34
Inventor 吴道洪石为华宋敏洁王东方杨玉地
Owner SHENWU TECH GRP CO LTD