CN203628646U - Light combustion-supporting wind and combustion gas integrated heat storing burner - Google Patents

Abstract

The utility model discloses a light combustion-supporting wind and combustion gas integrated heat storing burner solving a series of problems of large cross section temperature difference due to wide cross section and inadequate flame length, insufficient combustion due to unevenness of combustion gas and combustion-supporting wind mixture and energy loss due to inadequate combustion of exhaust gas. The light combustion-supporting wind and combustion gas integrated heat storing burner is characterized by comprising a heat storing case body (4), a combustion-supporting wind chamber (2) and a high pressure rotational flow burner block (7), wherein a heat storing body (6) and a heat preservation and insulation layer (5) are arranged in the heat storing case body (4); one end of the heat storing case body (4) is provided with the combustion-supporting wind chamber (2) and the other end thereof is connected with the high pressure rotational flow burner block (7); the upper part of the heat storing case body (4) is provided with fuel gas branch pipes; and an end part of the combustion-supporting wind chamber (2) is provided with an access door (10) and an air duct joint (1). Each burner is provided with an independent heat storing chamber and an independent air case, so that not only light and rational structure is provided for the light combustion-supporting wind and combustion gas integrated heat storing burner, but heat loss and pipeline heat preservation cost due to hot wind long distant conveying are avoided, thereby providing the light combustion-supporting wind and combustion gas integrated heat storing burner with incomparable advantages compared with traditional heat storing combustion.

Description

Light-duty combustion air, combustion gas integral type heat-accumulation combustor

One, technical field

The utility model belongs to the combustion plant of large-size chemical, metallurgical industry heat-treatment furnace, relates in particular to that a kind of product firing temperature is high, flexible and convenient operation, the light-duty combustion air of the saving energy, combustion gas integral type heat-accumulation combustor.

Two, background technology

Energy saving and environment friendly combustion system is the manufacturing important development direction of kiln, and therefore heat storage type combustion is more and more by should be on all kinds of kilns.The heat storage type combustion that kiln industry adopts at present generally adopts regenerator type, build one or more independently regenerator at workshop, be used for store heat, be switched on each burner of body of heater by pipeline, to transfer heat in kiln, also store the heat of taking out of in flue gas, thereby reach the object that reduces energy consumption simultaneously.Although this structure has been saved the energy to a certain extent, but still exist floor space large, long construction period, one-time investment is large, and the long distance of flue gas and combustion air is carried the problems such as the thermal losses that causes.

Three, summary of the invention

The purpose of this utility model is to provide that a kind of structure is light-duty rationally, operation control easy, automation control accuracy is high, the significant high efficiency combustion device of energy-saving effect.

Technical solution adopted in the utility model is: it is made up of parts such as accumulation of heat casing, combustion-supporting air compartment and high pressure cyclone burner blocks, in accumulation of heat casing, be provided with heat storage and thermal insulation separation thermosphere, its one end is provided with combustion-supporting air compartment, the other end connects high pressure cyclone burner block, top is provided with the combustion gas arm that portals corresponding with high pressure cyclone burner block gas injection, heat storage front end is corresponding with the combustion air ejiction opening of high pressure cyclone burner block, and is provided with access door and blast connection in combustion-supporting air compartment end.In high-pressure swirl flaming brick, be provided with the combustion air ejiction opening that the densely covered gas injection in a row of horizontal direction low discharge portals and is horizontal ellipse shape hole.

The beneficial effects of the utility model are, not only every brunched burner nozzle arranges independently regenerator and a watertight aircase independently, rational in infrastructure, has avoided the long distance of hot blast to carry the thermal loss causing, and significantly reduces pipe insulation expense; And the conversion of heat supply and heat-accumulating process realized full-automatic interlocked control, can, according to the requirement of body of heater and product heating, in setting-up time, commutate by reversal valve, automaticity is high, flexible and convenient operation.And the form that every cover heat-accumulating burner all adopts oval air outlet and multiple small sircle hole to supply gas has more increased the mixing of combustion air and combustion gas, make fuel gas buring more abundant, saving effect is more remarkable.

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

Four, accompanying drawing explanation

Fig. 1 is the main TV structure schematic diagram of the utility model;

Fig. 2 is the utility model plan structure schematic diagram;

Fig. 3 is the left TV structure schematic diagram of the utility model;

Fig. 4 is that the utility model uses state control principle schematic diagram.

In figure: 1 is blast connection, 2 is combustion-supporting air compartment, 3 combustion gas arms, 4 is accumulation of heat casing, 5 is thermal insulation separation thermosphere, 6 is heat storage, 7 is flaming brick, 8 portal for gas injection, 9 is combustion air ejiction opening, 10 is access door, 11 is pneumatic operated valve, 12 is orifice flowmeter, 13 is light-duty combustion air, combustion gas integral type heat-accumulation combustor, 14 is fire box temperature test point, 15 is flue-gas temperature test point, 16 is burner hearth, 17 is two four-way fume reversing apparatus, 18 is combustion fan, 19 is smoke exhaust fan, 20 is pressure sensor, 21 is smoke exhaust pipe, 22 is combustion air arm, 23 is combustion air supervisor, 24 is combustion gas supervisor, 25 is manual ball valve, 26 is burning fireworks.

Five, the specific embodiment

As shown in Figure 4, push away steel stove as example to undertake the construction of one 100 tons/hour.Pushing away steel stove entirety is made up of body of heater, the combustion system etc. of steel structure frame, refractory material laying.Combustion system is mainly made up of heat-accumulation combustor, pipe-line system and two four-way fume reversing apparatus etc.On the kiln wall of burner hearth 16 both sides, respectively establish 40 heat-accumulation combustors, every 8 are divided into one group.When one group of one side burning, another group smoke evacuation accumulation of energy, now two of offside groups of actions that burner is corresponding are respectively smoke evacuation accumulation of energy and burning.In burner hearth 16, be provided with fire box temperature test point 14, at the other flue-gas temperature test point 15 that is provided with of the combustion air arm 22 that connects accumulation of heat burner simultaneously.As Fig. 1, Fig. 2, shown in Fig. 3, heat-accumulation combustor 13 is by accumulation of heat casing 4, the compositions such as combustion-supporting air compartment 2 and high pressure cyclone burner block 7, in accumulation of heat casing 4, be provided with cellular heat storage 6 and thermal insulation separation thermosphere 5, its one end is provided with combustion-supporting air compartment 2, the other end connects high pressure cyclone burner block 7, top is provided with and the high pressure cyclone burner block 7 gas injections 8 corresponding combustion gas arms 3 that portal, heat storage 6 front ends are corresponding with the combustion air ejiction opening 9 of high pressure cyclone burner block 7, high-pressure swirl flaming brick 7 is made up of heavy castable, inside be provided with the horizontal direction low discharge gas injection in a row that gathers and portal 8 and be the combustion air ejiction opening 9 in horizontal ellipse shape hole.Be provided with access door 10 and blast connection 1 in combustion-supporting air compartment 2 ends, be connected with two four-way fume reversing apparatus 17 that the smoke exhaust fan 19 that is connected with smoke evacuation supervisor 21 is connected with the combustion fan 18 that is connected with combustion air supervisor 23 by combustion air arm 22.Combustion gas arm 3 communicates with the combustion gas supervisor 24 who is provided with orifice flowmeter 12 by combustion gas pneumatic operated valve 11, and its front end is placed in high-pressure swirl flaming brick 7 with gas injection and portals and 8 closely cooperate.While implementing the utility model, on the kiln wall of burner hearth 16 both sides, respectively establish two groups of heat-accumulation combustors 13, the combustion air arm 22 of every group is by two import and export of three-way connection connecting pipe and two four-way fume reversing apparatus 17, and another two import and export are connected with smoke exhaust fan 19 and combustion fan 18 respectively.When two four-way fume reversing valves 17 are during in position as shown in Figure 4, combustion fan 18 is blown to a group of burner hearth left side and another group heat-accumulation combustor 13 on right side, through heat storage 6, combustion air temperature is raise, combustion gas pneumatic operated valve 11 is opened, and heat-accumulation combustor 13 forms burning fireworks to spraying combustion gas and combustion air in burner hearth from high-pressure swirl flaming brick 7 is interior.Now the combustion air arm 22 of the heat-accumulation combustor 13 of corresponding kiln wall opposite side is communicated with smoke exhaust fan 19 by two four-way fume reversing valves 17, from the hot flue gas of the interior extraction of burner hearth 16, makes heat storage 6 accumulation of energys in the heat-accumulation combustor 13 on right side.After 40 second time, the air cylinder driven reversal valve chip of two four-way fume reversing valves 17 rotates 90 °, and it is forwarded on another working position.One group of so corresponding accumulation of energy burner 13 transfers smoke evacuation state to by fired state, and one group transfers fired state to by smoke evacuation state, and one group of corresponding another side accumulation of energy burner transfers fired state to by smoke evacuation state, and one group transfers smoke evacuation state to by fired state.Thereby complete the commutation action of primary combustion device fired state.Through 40 second time, air cylinder driven reversal valve blade reversed 90 ° so again, then completed the conversion of one action state.So circulation, according to the requirement of different product firing rate, fuel gases calorific value difference, smoke evacuation and combustion fan pressure condition, heat-accumulating burner, by frequency commutation accumulation of heat and heat supply with different, reaches energy-saving and cost-reducing more than 15%.

Claims (2)

1. a light-duty combustion air, combustion gas integral type heat-accumulation combustor, it comprises accumulation of heat casing (4), combustion-supporting air compartment (2) and high pressure cyclone burner block (7), it is characterized in that: in accumulation of heat casing (4), be provided with heat storage (6) and thermal insulation separation thermosphere (5), its one end is provided with combustion-supporting air compartment (2), the other end connects high pressure cyclone burner block (7), top is provided with and high pressure cyclone burner block (7) gas injection combustion gas arm (3) corresponding to (8) that portal, heat storage (6) front end is corresponding with the combustion air ejiction opening (9) of high pressure cyclone burner block (7), and be provided with access door (10) and blast connection (1) in combustion-supporting air compartment (2) end.

2. light-duty combustion air according to claim 1, combustion gas integral type heat-accumulation combustor, is characterized in that: in high-pressure swirl flaming brick (7), be provided with the combustion air ejiction opening (9) that the densely covered gas injection in a row of horizontal direction low discharge portals (8) and is horizontal ellipse shape hole.

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