Biomass double square coil pipe heat conduction oil furnace

Abstract

The invention discloses a biomass double square coil pipe heat conduction oil furnace. Two groups of square coil pipes are parallelly arranged in a smoke chamber in a furnace body, and three side rings of each group of square coil pipes are attached to side walls of the furnace body. The three side rings of each group of square coil pipes are attached to the side walls of the furnace body and one side ring of each group of square coil pipes is disposed at a flame center so that the two groups of square coil pipes are attached to over 90% area of four side walls of the furnace body, the maximum space utilization rate of the smoke chamber is achieved, heating area is increased, double sides of the side rings of the flame center are heated, the heat transfer efficiency is increased, meanwhile, the square coil pipes are tightly attached to the side walls so that heating temperature of the side walls is lowered, and the problem in terms of high temperature resistance of the side walls is solved.

Description

technical field [0001] The invention belongs to the technical field of boilers, in particular to a boiler equipment which burns biomass fuel to generate thermal energy to heat a liquid carrier (ie, heat transfer oil). Background technique [0002] The fuel used in traditional heat transfer oil furnaces is coal or natural gas. With the wide application of biomass fuels, the internal structure design of heat transfer oil furnaces, especially the heat transfer capacity of the heating surface in the furnace, is an important guarantee for the thermal efficiency of biomass heat transfer oil furnaces. [0003] Chinese patent document CN202166188U discloses a horizontal heat-conducting oil furnace. The heating surface structure in the furnace adopts a set of spiral disc tube components. The inner ring of the disc tube has high heating efficiency, and the outer ring has low heating efficiency. The system is low, and the oil outlet temperature is uneven. Although the heating efficienc...

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Problems solved by technology

[0003] Chinese patent document CN202166188U discloses a horizontal heat-conducting oil furnace. The heating surface structure in the furnace adopts a set of spiral disc tube components. The inner ring of the disc tube has high heating efficiency, and the outer ring has low heating efficiency. The system is low, and the oil outlet temperature is uneven. Although the heating efficiency of the inner ring is high, the inner ring is not located in the center of the flame. Obviously, the heating effect of the heating surface is not ideal.

In addition, there is a space between the outer ring and the side wall of the furnace body, not only the heating area is relatively small, but also the heat energy near the side wall of the furnace body cannot be effectively utilized

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