CN2500915Y - Double generator gas backfire boiler - Google Patents

Abstract

A technical improvement belongs to gas generator for boilers. Gas supply is cut off for a common individual gas generator when tapping slag, but gas supply is maintained by alternative use of double generators. The dust particle, included in the gas produced in the gas generator, is emitted to the atmosphere after burning of general boilers, while gas is burnt in a reverse burning room of a gas reverse burning boiler so that most included dust falls into a water type ash-sinking room in the process of 'press down' and 'fold up', which greatly reduces the dust exhausting concentration of boilers. The utility model can substitute fuel and gas-fired boiler, and reduce the operation cost of boiler by a plurality of times.

Description

Double-generator coal gas backfire boiler

The utility model belongs to the technological improvement that gas producer is used for boiler.Gas producer is a kind of equipment that the solid coal is converted into clean gaseous fuel, is applicable to boiler, kiln, hot-blast stove etc. usually.Bigger gas producer generally is that mechanical coal feeder, machinery are slagged tap, continuous aerogenesis; Less gas producer is generally disposable slagging tap, and interrupts air feed when slagging tap.One of the purpose of this utility model is to propose a kind of double-generator to solve the air feed problem of interrupting, the double-generator alternate run can reach the purpose of continuous air feed, again need not be than complicated slagging tap, coal supply equipment, the time that one section coal and gas cofiring are arranged before slagging tap in addition, this will make burning more complete, improve efficiency of combustion.

What all are mingled with some dusts to gas producer in the coal gas that is produced, and two of the purpose of this utility model is to propose a kind of coal gas backfire boiler, solve to be mingled with this problem of dust.

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

Fig. 1 is double-generator coal gas backfire boiler embodiment, the side view of double-generator.

Fig. 2 is double-generator coal gas backfire boiler embodiment, the vertical view of double-generator.

Fig. 3 is double-generator coal gas backfire boiler embodiment, backfire boiler partial sectional view.

1 is the dual occurrence body among the figure, is made up of No. 1 generator A and No. 2 generator B.The coal gas that No. 1 generator produced enters the plenum chamber coal gas that 3, No. 2 generator produced by venthole 6 and enters plenum chamber 3 by venthole 7.Coal gas is blown into boiler back firing chamber 11 by nozzle 5 with secondary air channel 4, and by fire hole 12 igniting, flame enters flue 13 through heating surface 14, discharges from chimney 9 via the heating surface of boiler body 10.Cooling water in the dual occurrence body is entered by base 8, discharges from base 2, or sends into boiler body 10, or deliver to bathing pool.

One of the purpose of this utility model is achieved in that

Two generators of dual occurrence body 1 are used alternatingly, and when No. 1 generator aerogenesis draws to an end, begin to light generator No. 2; After the coal gas of No. 2 generators began to enter plenum chamber, at this moment No. 1 generator began to slag tap, and stayed fire in a stove before fuel is added coal again, a small amount of ventilation; Before No. 2 generators were with after-flame, No. 1 living device strengthened air quantity, and after the coal gas of No. 1 generator entered plenum chamber, No. 2 generator began to slag tap.So alternately go round and begin again, can guarantee that coal gas supplies with continuously.

Two of the purpose of this utility model is achieved in that

The coal gas (or flame) that is being mingled with small amount of dust sprays into back firing chamber 11 by nozzle 5, and coal gas is in back firing chamber after the active combustion, and flame is pricked for 14 times by heating surface, afterwards on the folding, enters the convection heating surface of body of heater 10 by flue 13, and flue gas is discharged from chimney 9.The dust that is mingled with in the coal gas, in " pricking down " " upward folding " process declined the heavy grey chamber 15 of ability of swimming, the last like this flue gas that gives off was just clean more.

This utility model is applicable to medium small boiler, and bath boiler especially is even the hot water in the gas producer can both be fully utilized; It is more suitable to be used for the old boiler transformation.Can replace fuel oil, gas fired-boiler with this, can become several times to reduce the boiler operatiopn cost.

Claims (3)

1, double-generator coal gas backfire boiler belongs to the technological improvement that gas producer is used for boiler.It is characterized in that the coal gas that double-generator 1 is produced directly supplies with boiler 10.Double-generator 1 is also shown two generators No. 1, No. 2, and No. 1 generator A establishes 6, No. 2 generator B of gas exit and establishes gas exit 7: gas exit 6,7 even being enclosed in the plenum chamber 3.The back firing chamber 11 that nozzle 5 on the plenum chamber inserts boiler 10.

2, double-generator coal gas backfire boiler according to claim 1 is characterized in that said plenum chamber 3 is the water interlayer casings that communicate with the double-generator cooling water, and nozzle 5 water interlayers communicate with plenum chamber, and secondary wind airduct 4 is housed on the nozzle.

3, double-generator coal gas backfire boiler according to claim 1 is characterized in that said boiler 10, is by the back firing chamber 11 that specializes in gas-fired, fire hole 12, flue 13, heating surface 14, and the heavy grey chamber 15 of chimney 9 and ability of swimming is formed.