Regenerative impact heat transfer device for industrial furnace

Abstract

The invention discloses a heat accumulation type impact heat transfer device for an industrial furnace. The device comprises a gas processing device. An air extraction pipeline and an air blowing pipeline are arranged on an air exhaust port and an air outlet of the gas processing device correspondingly. The air extraction pipeline is provided with a first air extraction branch pipeline and a second air extraction branch pipeline. The air blowing pipeline is provided with a first air blowing branch pipeline and a second air blowing branch pipeline. The first air extraction branch pipeline and the first air blowing branch pipeline communicate with a first heat accumulation body in a controlled state, and the second air extraction branch pipeline and the second air blowing branch pipeline communicate with a second heat accumulation body in a controlled state. Pipelines behind the first heat accumulation body and the second heat accumulation body are provided with openings used as an extracted air exhaust port or an intake air blowing-in port correspondingly. According to the heat accumulation type impact heat transfer device for the industrial furnace, flue gas is subjected to heat exchange of the heat accumulation bodies, heat energy is sufficiently utilized, the temperature of flue gas heated by the heat accumulation bodies is suitable for enabling the flue gas to be directly sprayed to a workpiece to be heated, the workpiece is directly heated, and the heat transfer coefficient is remarkably improved; and the heating efficiency is remarkably improved, the heating efficiency is improved by 20% or higher on the basis of original heat accumulation combustion, and the uniformity can also be improved.

Description

technical field [0001] The invention relates to an accessory part of an industrial furnace, in particular to a regenerative impingement heat transfer device for an industrial furnace using natural gas, liquefied gas, etc. as fuel. Background technique [0002] The industrial furnace using natural gas, coal gas or fuel oil as fuel, its working principle is to place the workpiece to be heated in the furnace, heat up to the temperature required by the process, keep warm or evenly temperature. In heating processes, it is generally accepted that there are three forms of heat transfer: radiation, convection, and conduction heating. [0003] In the low temperature stage at the beginning of heating, the heat transfer is mainly by convection, and there is basically no radiation heat transfer, or the radiation heat transfer effect is very poor. At this stage, the heat exchange capacity between the workpiece to be heated and the furnace gas placed in the furnace is relatively poor, res...

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Problems solved by technology

[0007] The invention aims at the deficiencies in the heating process of industrial furnaces in the prior art, such as low heating efficiency, prolonged heating time, and increased fuel consumption due to low convective heat transfer coefficient, and provides an industrial furnace that greatly improves heating efficiency. Regenerative impact heat transfer device for furnace

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