Continuous combusting regenerative industrial furnace

Abstract

The invention discloses a continuous combusting regenerative industrial furnace, which includes a rotary regenerative heat exchanger, wherein the rotary regenerative heat exchanger includes a rotary cylinder, an upper cover and a lower cover, and the rotary cylinder is internally provided with a regenerator; the high-temperature smoke outlet on the furnace body is connected with an induced draft fan through the high-temperature smoke inlet and the low-temperature smoke outlet of the rotary regenerative heat exchanger in sequence; an air blower is connected with an combustor on the furnace body through the normal temperature air inlet and the preheated air outlet of the rotary regenerative heat exchanger in sequence; and the rotary cylinder is connected with a rotary driving device. The regenerator in the rotary regenerative heat exchanger rotates to continuously preheat the air, the preheated air can be continuously fed into the furnace, the whole combusting process needs no reversing, the pipeline arrangement is simple, the continuous regenerative heat exchange between the high-temperature smoke and the normal temperature air can be realized, and the whole combusting process needs no reversing and is stable.

Description

technical field [0001] The invention relates to a regenerative industrial furnace, in particular to a continuous combustion regenerative industrial furnace. Background technique [0002] In the industrial furnace system, in order to effectively utilize the waste heat of flue gas or use low calorific value fuel gas as fuel, regenerative combustion technology is generally adopted. [0003] In the prior art, the regenerative burners used in regenerative combustion need to be arranged in pairs. The air at normal temperature is heated to a high temperature when it passes through the regenerative body of the burner on one side, and is mixed with the injected fuel for combustion, while the other side burns. The burner on the side sucks out the flue gas after combustion, and the hot flue gas transfers heat to the regenerator to cool down and then is discharged into the atmosphere through the chimney. In the next cycle, the working state of the burners on both sides is switched, and...

AI Technical Summary

Problems solved by technology

The working mode of frequent switching of the burner will not only bring discontinuity of the flame in the furnace, but also cause certain fluctuations in the furnace pressure and temperature, which will affect the stability of the entire system

The patent No. CN202074527U discloses a regenerative combustion device that realizes continuous combustion. A four-way reversing valve and four check valves control the continuous entry of normal-temperature air and the continuous discharge of low-temperature flue gas. The essence of the patent is However, it still needs to be realized by reversing the working mode, and continuous combustion without reversing in the true sense cannot be achieved.

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