CN202432680U

CN202432680U - Reverse gas fire pipe environment-friendly air heating furnace

Info

Publication number: CN202432680U
Application number: CN2011205739168U
Authority: CN
Inventors: 刘庆鹏; 杨中福
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2012-09-12
Anticipated expiration: 2021-12-31

Abstract

The utility model relates to the field of a heat supply air heating furnace, in particular to a reverse gas fire pipe environment-friendly air heating furnace, which comprises a furnace body, a combustion chamber, a coal feeding opening, a slag cleaning opening, an ash discharge opening and a chimney, wherein the coal feeding opening, the slag cleaning opening and the ash discharge opening are respectively arranged at the front side of the furnace body. The reverse gas fire pipe environment-friendly air heating furnace is characterized in that the furnace body is a cuboid, the combustion chamber is sequentially communicated with an ash passage, a fire pipe, a flue and the chimney for forming a combination passage, the back side of the furnace body is provided with an air inlet, the air inlet, an air dividing passage, an ash passage sandwich layer, a combustion chamber sandwich layer, a fire pipe gap, an air passage and an air outlet are sequentially connected for forming a heat exchange passage, and media in the heat exchange passage and the combustion passage flow in the reverse directions. Compared with the prior art, the reverse gas fire pipe environment-friendly air heating furnace has the beneficial effects that the reverse combustion is realized through changing the combustion direction of the furnace, so the fuel is sufficiently preheated, the sufficient combustion is realized through a red flame layer, the heat exchange is carried out on the fire pipe, the heat efficiency is high, more than 40 percent of coal is saved through being compared with that of a positive combustion air heating furnace, in addition, the smoke and the hot air respectively go in respective passages, and the national energy-saving and emission-reduction requirements are reached.

Description

Backfire gasification fire tube environmental protection hot-blast stove

Technical field

The utility model relates to heating hot-blast stove field, particularly a kind of backfire gasification fire tube environmental protection hot-blast stove.

Technical background

The hot-blast stove of prior art generally is to adopt just to burn principle at present, and its shortcoming is not fully burning of fuel; The thermal efficiency is low, and the cigarette temperature is too high, and thermal loss is very big; The chimney over-emitting black exhaust does not reach environmental requirement, and coal consumption is big; Do not reach the requirement of national energy-saving and emission-reduction, operate time-consumingly simultaneously, the cost of stove is high.

Summary of the invention

The purpose of the utility model provides a kind of backfire gasification fire tube environmental protection hot-blast stove, overcomes the deficiency of prior art, changes burning direction, realizes that backfire is counter to burn, and makes the abundant preheating of fuel, through the fully burning of flourishing layer, improves the thermal efficiency.

For solving the problems of the technologies described above, the technical scheme of the utility model is:

Backfire gasification fire tube environmental protection hot-blast stove comprises body of heater, combustion chamber, coal filling hole, breast hole, ash hole and chimney, and coal filling hole, breast hole and ash hole all are located at the front side of body of heater; Said body of heater is a cuboid; Combustion chamber and grey-way, fire tube, flue and the chimney formation burning gallery that is connected successively, the fire tube more than eight is vertical at the combustion chamber rear side, and fire tube one end links to each other through upper spacer; The fire tube other end links to each other through lower clapboard; The dorsal part of body of heater is provided with air inlet, and air inlet, branch air channel, grey-way interlayer, combustion chamber interlayer, fire tube gap, air channel and air outlet link to each other successively and constitute heat exchanger channels, the medium reverse flow in heat exchanger channels and the burning gallery; Chimney and air outlet all are located at the body of heater top side, are provided with the wind and smoke dividing plate between air channel and the flue.

Be provided with orifice plate between said combustion chamber interlayer and the fire tube gap.

The body of heater of said fire tube top is provided with cleaning door, and lid is arranged on the cleaning door.

Compared with prior art, the beneficial effect of the utility model is: through changing the burning direction of stove, realizing that backfire is counter burns; Make fuel through abundant preheating,, on fire tube, carry out heat exchange through the fully burning of flourishing layer; The thermal efficiency is high, economize on coal more than 40% than just burning hot-blast stove, and cigarette and air is taken their own roads; Guarantee the environmental purification of hot blast, reached the requirement of national energy-saving and emission-reduction.

Description of drawings

Fig. 1 is the utility model example structure sketch map;

Fig. 2 is that heat transferring medium moves towards sketch map among the utility model embodiment;

Fig. 3 is that flue gas moves towards sketch map among the utility model embodiment;

Fig. 4 is the vertical view of Fig. 1;

Fig. 5 is along A-A line cutaway view among Fig. 1;

Fig. 6 is along B-B line cutaway view among Fig. 1;

Fig. 7 is along C-C line cutaway view among Fig. 1;

Fig. 8 is along D-D line cutaway view among Fig. 1.

Among the figure: the flourishing layer of 1-combustion chamber 2-3-cast iron stove strip 4-grey-way 5-coal filling hole 6-breast hole 7-ash hole 8-fire tube 9-flue 10-chimney 11-cleaning door 12-air inlet 13-divide 17-air channel, interlayer 16-fire tube gap, 14-grey-way interlayer 15-combustion chamber, air channel 18-orifice plate 19-air outlet 20-upper spacer 21-lower clapboard 22-wind and smoke dividing plate

The specific embodiment

Below in conjunction with accompanying drawing the utility model specific embodiment is described further.

See Fig. 1～Fig. 8; Be the utility model embodiment backfire gasification fire tube environmental protection hot-blast stove structural representation, this body of heater is a cuboid, and coal filling hole 5, breast hole 6 and ash hole 7 all are located at the front side of body of heater; Combustion chamber 1 and grey-way 4, fire tube 5, flue 9 and the chimney 10 formation burning gallery that is connected successively; Be provided with 3, ten fire tubes 8 of cast iron stove strip between combustion chamber 1 and the grey-way 4 and be vertical at combustion chamber 1 rear side, fire tube 8 one ends link to each other through upper spacer 20; Fire tube 8 other ends link to each other through lower clapboard 21; The dorsal part of body of heater is provided with air inlet 12, and air inlet 12, branch air channel 13, grey-way interlayer 14, combustion chamber interlayer 15, fire tube gap 16, air channel 17 and air outlet 19 link to each other successively and constitute heat exchanger channels, the medium reverse flow in heat exchanger channels and the burning gallery; Chimney 10 all is located at the body of heater top side with air outlet 12, is provided with wind and smoke dividing plate 22 between air channel 17 and the flue 9.Be provided with orifice plate 18 between combustion chamber interlayer 15 and the fire tube gap 16.The body of heater of fire tube 8 tops is provided with cleaning door 11, on the cleaning door 11 lid is arranged.

The flow process of flue gas is following during the utility model work:

After adding fuel, igniting by coal filling hole 5, fuel 1 takes fire in the combustion chamber, because the natural draft of chimney 10; Cigarette is passed down through flourishing layer 2 abundant combustion gasification, and fire and flue gas be through grey-way 4 entering fire tubes 8, carries out heat exchange with the air in fire tube gap 16; Fully heat radiation; Cigarette gets into flue 9 to rising, discharges from chimney 10.

The flow process of hot blast is following during the utility model work:

By air inlet 12 beginning air intakes, wind gets into monosymmetric grey-way interlayer 14 of body of heater and combustion chamber interlayer 15 by minute air channel 13, and wind gets into fire tube gap 16 through orifice plate 18; Fully carry out heat exchange; The temperature that improves wind becomes hot blast, and hot blast 17 is discharged by air outlet 19 through the air channel, is used for air heating.

Claims

1. backfire gasification fire tube environmental protection hot-blast stove comprises body of heater, combustion chamber, coal filling hole, breast hole, ash hole and chimney, and coal filling hole, breast hole and ash hole all are located at the front side of body of heater; It is characterized in that said body of heater is a cuboid, combustion chamber and grey-way, fire tube, flue and the chimney formation burning gallery that is connected successively; Fire tube more than eight is vertical at the combustion chamber rear side; Fire tube one end links to each other through upper spacer, and the fire tube other end links to each other through lower clapboard, and the dorsal part of body of heater is provided with air inlet; Air inlet, branch air channel, grey-way interlayer, combustion chamber interlayer, fire tube gap, air channel and air outlet link to each other successively and constitute heat exchanger channels; Medium reverse flow in heat exchanger channels and the burning gallery, chimney and air outlet all are located at the body of heater top side, are provided with the wind and smoke dividing plate between air channel and the flue.

2. backfire gasification fire tube environmental protection hot-blast stove according to claim 1 is characterized in that, is provided with orifice plate between said combustion chamber interlayer and the fire tube gap.

3. backfire gasification fire tube environmental protection hot-blast stove according to claim 1 and 2 is characterized in that the body of heater of said fire tube top is provided with cleaning door, and lid is arranged on the cleaning door.