Energy-preservation coal furnace circulating air returning furnace core

Abstract

The invention discloses an energy-preservation coal furnace circulating air returning furnace core including a furnace core outer bucket (1), upper caps (2), a furnace core inner bucket (7), and a refractory deposition B (9). The furnace core is characterized in that a refractory deposition A (8) is arranged between the furnace core inner bucket (7) and a refractory deposition B (9), secondary circulating combusting devices (3) are arranged on the refractory deposition A (8) and the refractory deposition B (9), the furnace core inner bucket (7) is connected with a bottom ring (5), the bottom ring (5) is connected with furnace core outer bucket (1), a secondary circulating air inlet (6) is formed in the furnace core outer bucket (1), the furnace core outer bucket (1) is connected with the upper cap (2), the upper caps (2) sleeve the secondary circulating combusting devices (3), and the refractory deposition A (8) and the refractory deposition B (9) are placed on the bottom ring (5). According to the furnace core, the service life of the furnace core can be prolonged, and meanwhile the black smoke is small, the flame is large, the energy consumption is small, the energy utilization is high, the heat transfer efficiency is high, and the combustion is full.

Description

technical field [0001] The invention belongs to the technical field of heaters, and in particular relates to an energy-saving coal furnace circulation return air furnace core. Background technique [0002] The coal stove is an essential appliance for every family in the countryside. It is usually used for cooking, and it is mainly used for heating and cooking in winter. The furnace core is the main component of the stove and other stoves. Fuels such as firewood and coal are burned in the furnace core, so the furnace core must be high temperature resistant. The furnace core in the prior art is formed by setting a layer of refractory layer on the inner wall of the inner barrel to form the furnace core. The function of the refractory layer is to prevent the inner barrel from burnt out. However, after the refractory layer is set in the inner barrel, the heat transfer efficiency of the furnace core is reduced, and a part of the heat is discharged from the flue through the bottom...

AI Technical Summary

Problems solved by technology

However, after the refractory layer is set in the inner barrel, the heat transfer efficiency of the furnace core is reduced, and a part of the heat is discharged from the flue through the bottom of the furnace core and lost, and because a part of the outflowing heat is discharged together with the unburned black smoke, resulting in large black smoke and small flame , high energy consumption, low energy utilization rate, reduced heat transfer efficiency, and unsustainable heat transfer rate

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