Double fuel gas cycle hot blast stove of waste gas direct combustion and indirect heat transfer

Abstract

The invention discloses a double fuel gas cycle hot blast stove of waste gas direct combustion and indirect heat transfer, which comprises a chamber, a cycle fan, a combustor, a hearth, a heat exchanger and a computer control device, wherein the chamber is set to be a hollow cube, a wall body adopts a double-layer structure, the middle is filled with a heat insulating material, one end is provided with an air inlet, while the other end is provided with the cycle fan; the combustor is arranged on one side of the chamber, and the other side of the chamber is provided with a smoke venting pipe; the inside of a cavity of the chamber is provided with the hearth and the heat exchanger which adopts a smoke gas multiple return structure; the combustor has a fully automatic double type, and a mixing ratio of fuel to combustion air can be automatically adjusted; and the computer control device is designed into automatic distant range programming operation according to a temperature set value output by a heating space. Because the stove adopts the hearth with larger volume, waste gas can be fully combusted, and hot smoke gas can be subjected to full heat transfer; because the heat exchanger adopts the multiple return structure, the heat exchanger has high heat efficiency; and the stove has safe operation, high comprehensive effectiveness, clean and no pollution.

Description

technical field [0001] The invention relates to combustion heat exchange equipment for combustible fuel oil and gas, in particular to a dual-purpose fuel gas circulation hot blast stove for waste gas direct combustion and indirect heat exchange. Background technique [0002] At present, the internal and external surfaces of various equipment or parts, such as air conditioners, battery cars, automobiles, refrigerator shells, etc., need to be dried in the drying room of the drying furnace in the coating production line for powder spraying or baking. For roasting treatment, the heat source is provided by the burner, and the heat is circulated in the heating and drying room. There are electric heating devices, coal-fired oil-fired devices, etc. The above method consumes a lot of power, coal and oil, and the heat energy utilization rate is not high. Energy saving, such a drying furnace cannot be applied to the needs of my country's modern industrial development today. To create a c...

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Problems solved by technology

[0002] At present, the internal and external surfaces of various equipment or parts, such as air conditioners, battery cars, automobiles, refrigerator shells, etc., need to be baked in the drying room of the drying furnace in the coating production line for powder spraying or baking paint. For roasting treatment, the heat source is provided by the burner, and the heat is circulated in the heating and drying room. There are electric heating devices, coal-fired oil-fired devices, etc. The above method consumes a lot of power, coal and oil, and the heat energy utilization rate is not high. Energy saving, such a drying furnace cannot be applied to the needs of my country's modern industrial development today. To create a conservation-oriented society, we must take the road of "scientific and technological innovation" to achieve the effect of energy saving and emission reduction

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