CN204438099U - Heat storage type porous medium burner assembly - Google Patents
Heat storage type porous medium burner assembly Download PDFInfo
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- CN204438099U CN204438099U CN201420766783.XU CN201420766783U CN204438099U CN 204438099 U CN204438099 U CN 204438099U CN 201420766783 U CN201420766783 U CN 201420766783U CN 204438099 U CN204438099 U CN 204438099U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a kind of heat storage type porous medium burner assembly, comprise body of heater, two burners, smoke exhaust pipe assembly and air supply pipe assemblies.Body of heater is connected between two burners.Each burner comprises regenerator, combustion chamber and igniter, is filled with heat storage in regenerator, and combustion chamber is connected with body of heater with regenerator respectively, is filled with porous media in combustion chamber, and igniter provides burning things which may cause a fire disaster.Smoke exhaust pipe assembly is connected with the regenerator of two burners respectively.Air supply pipe assembly is connected alternately to provide mist with the regenerator of two burners respectively, air supply pipe assembly wherein one mist is provided time, the flue gas of generation is through wherein another and smoke exhaust pipe assembly are discharged.According to heat storage type porous medium burner assembly of the present utility model, mist flameholding is abundant, and heat production increases, pollutant emission reduces, and smoke discharging residual heat utilization rate improves, and fire box temperature field is even, the thermic load of burner has adjustability, can adapt to low-calorie fuel.
Description
Technical field
The utility model relates to burner arts, especially relates to a kind of heat storage type porous medium burner assembly.
Background technology
In heat-storage type burner in normal burner and correlation technique, the burning of gaseous fuel is mainly the space combustion of feature with free flame.Due to the heat conductivility of gas and radiance low, cause that thermograde near flame is steep, skewness.
And heat-storage type burner in correlation technique is when using low-calorie gaseous fuel, because the ignition point of low-calorie gaseous fuel is in free space high, firing range is narrow, poor combustion stability, easily stops working, making its use procedure there is potential safety hazard.Therefore using low-calorie fuel (if calorific value is lower than 1000kcal/Nm
3blast furnace gas) and under requiring the prerequisite of fire box temperature lower (as lower than 800 DEG C), heat-storage type burner need add the Everlasting fire device that uses high-grade fuel (as coke-stove gas or natural gas), the consumption of high-grade fuel is made to increase like this, operating cost is caused to rise, thus limit the advantage of regenerative combustion technology, also limit the use of low calorie fuels.
Utility model content
The utility model is intended at least solve the technical problem existed in prior art.For this reason, the purpose of this utility model is to provide a kind of heat storage type porous medium burner assembly, and this heat storage type porous medium burner assembly, under stable, the sufficient prerequisite of guarantee fuel combustion, can ensure homogeneous temperature in burner hearth, improve smoke discharging residual heat utilization rate, and low-calorie fuel can be used.
According to heat storage type porous medium burner assembly of the present utility model, comprising: body of heater; Two burners, described body of heater is connected between described two burners, each described burner comprises: regenerator, combustion chamber and igniter, heat storage is filled with in described regenerator, described combustion chamber is connected with described body of heater with the first end of described regenerator respectively, be filled with porous media in described combustion chamber, described igniter extend in described combustion chamber to provide burning things which may cause a fire disaster; Smoke exhaust pipe assembly, described smoke exhaust pipe assembly is connected to discharge with the second end of the described regenerator of described two burners respectively and carries out the flue gas after heat exchange with described heat storage; Air supply pipe assembly, described air supply pipe assembly is connected to provide mist alternately in described two burners respectively with the second end of the described regenerator of described two burners, wherein, when described air supply pipe assembly provides mist to one of them in described two burners, the flue gas generated after described mist burning is discharged with another part be connected in described two burners through described smoke exhaust pipe assembly.
According to heat storage type porous medium burner assembly of the present utility model, by at burning porous medium internal combustion mist, thus make mist flameholding, fully, and then add the heat production of mist, reduce energy resource consumption, decrease the discharge of pollutant simultaneously.Because the thermal capacity of porous media is larger, make porous media temperature stabilization, thus make mist flameholding, safety, and then make temperature field high uniformity in burner hearth, make the thermic load of burner have adjustability by a relatively large margin, and burner can adapt to low-calorie fuel simultaneously.By arranging the burner of two alternate combustion, and two burner alternate combustion, most of heat of flue gas can be absorbed by burned device, thus improve the utilization rate of smoke discharging residual heat.
In addition, also following additional technical feature can be had according to heat storage type porous medium burner assembly of the present utility model:
In embodiments more of the present utility model, described porous media comprises the first sub-porous media and the second sub-porous media, the contiguous described body of heater of described second sub-porous media is arranged, and the specific area of described second sub-porous media is greater than the specific area of described first sub-porous media.Wherein, the second sub-porous media can provide the combustion space of mist, thus ensure mist evenly, burn steadily, and then the generation of decreasing pollution thing and discharge.First sub-porous media flame capable of blocking, thus ensure the security that heat storage type porous medium burner assembly uses, make the preheating time shortening of mist in the second sub-porous media, thus, mist can be lighted rapidly and Thorough combustion simultaneously.
Particularly, the part that described igniter extend into described combustion chamber is positioned at the side of the described body of heater of vicinity of described porous media.
Alternatively, described igniter is high-energy igniter.Thus, the efficiency of heating surface of igniter can be improved, make the temperature of igniter increase fast, thus mist can be lighted rapidly.
Preferably, described porous media is foamed ceramics.Thus, the heat-resisting quantity of porous media and thermal conductivity stronger.
Preferably, described heat storage is honeycomb ceramics heat storage.Thus, can ensure that heat storage has higher heat storage capacity.
Particularly, described mist comprises fuel gas and air.
Preferably, the excess air coefficient of described mist is 1.Thus avoid air too much to cause thermal loss.
In embodiments more of the present utility model, described air supply pipe assembly comprises: air supply header; Two gas manifolds, each described gas manifold is connected between the described regenerator of described air supply header and corresponding described burner; First control valve, described first control valve is connected to described air supply header and described two gas manifolds respectively to control one of them conducting in described air supply header and described two gas manifolds.Thus, air supply pipe assembly alternately provides mist to the first burner and the second burner.
Particularly, described first control valve is triple valve.Thus make air supply pipe modular construction simple, compact.
Alternatively, described air supply header is also provided with first and pneumaticly cuts valve soon.Thus when heat storage type porous medium burner assembly occurs abnormal, first pneumaticly cuts the flowing that valve can block rapidly mist in air supply header soon, and then ensures the safety in utilization of heat storage type porous medium burner assembly.
Alternatively, described two gas manifolds are respectively equipped with second and pneumaticly cut valve soon.Thus, when heat storage type porous medium burner assembly occurs abnormal, the mist in two gas manifolds can be blocked rapidly, thus improves the safety in utilization of heat storage type porous medium burner assembly.
Further, described two gas manifolds are respectively equipped with first flow control valve.Thus, the flow of adjustable mist, thus the heat of release when regulating burner to run, and then realize thermic load adjustable of burner.
In embodiments more of the present utility model, described smoke exhaust pipe assembly comprises: smoke evacuation house steward; Two smoke evacuation arms, each described smoke evacuation arm is connected between described smoke evacuation house steward and the described regenerator of corresponding described burner; Second control valve, described second control valve be connected to described smoke evacuation house steward and described two smoke evacuation arms to control described smoke evacuation house steward and described two one of them conductings of discharging fume in arm.
Alternatively, described two smoke evacuation arms are respectively equipped with second adjustable valve.Thus regulate the flue gas flow in two smoke evacuation arms respectively.
Alternatively, described smoke evacuation house steward is also provided with the 3rd flow control valve.Thus regulate the flue gas flow in smoke evacuation house steward.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the heat storage type porous medium burner assembly according to the utility model embodiment.
Reference numeral:
Heat storage type porous medium burner assembly 100,
Burner 10, first burner 101, second burner 102,
Regenerator 11, first regenerator 111, second regenerator 112,
Combustion chamber 122, combustion chamber 121, second, combustion chamber 12, first,
Igniter 13, first igniter 131, secondary igniter 132,
Heat storage 14, the sub-porous media 152 of porous media the 15, first sub-porous media 151, second,
First inlet tube 161, second inlet tube 162, first outlet 171, second outlet 172,
Smoke exhaust pipe assembly 20, smoke evacuation house steward 21, smoke evacuation arm 22, first row cigarette pipe 221, second row cigarette pipe 222, second control valve 23, second adjustable valve 24, the 3rd flow control valve 25,
Air supply pipe assembly 30, air supply header 31, gas manifold 32, first gas manifold 321, second gas manifold 322, first control valve 33, the first pneumatic valve 34, second of cutting soon pneumaticly cut valve 35, first flow control valve 36 soon
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " on ", D score, " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Below with reference to Fig. 1, the heat storage type porous medium burner assembly 100 according to the utility model embodiment is described.
According to the heat storage type porous medium burner assembly 100 of the utility model embodiment, as shown in Figure 1, comprising: body of heater (scheming not shown), two burners 10, smoke exhaust pipe assembly 20 and air supply pipe assemblies 30.Wherein, body of heater is connected between two burners 10, and particularly, have burner hearth (scheming not shown) in body of heater, two burners 10 are connected with burner hearth respectively, thus heat burner hearth.
With reference to Fig. 1, each burner 10 comprises regenerator 11, combustion chamber 12 and igniter 13, heat storage 14 is filled with in regenerator 11, combustion chamber 12 is connected with body of heater with the first end of regenerator 11 respectively, be filled with porous media 15 in combustion chamber 12, igniter 13 extend in combustion chamber 12 to provide burning things which may cause a fire disaster.
Particularly, as shown in Figure 1, two burners 10 are respectively the first burner 101 and the second burner 102, first burner 101 comprises the first regenerator 111, first combustion chamber 121 and the first igniter 131, second burner 102 comprises the second regenerator 112, second combustion chamber 122 and secondary igniter 132.Wherein, the first end of the first combustion chamber 121 is connected with burner hearth respectively with the first end of the second combustion chamber 122.Second end of the first burner 101 is provided with the first inlet tube 161 and the first outlet 171, first inlet tube 161 is communicated with the second end of the first regenerator 111 respectively with the first outlet 171.Second end of the second burner 102 is provided with the second inlet tube 162 and the second outlet 172, second inlet tube 162 is communicated with the second end of the second regenerator 112 respectively with the second outlet 172.Here it should be noted that, the first end of component refers to one end of the contiguous body of heater of this component, and the second end of component refers to one end away from body of heater of this component.
With reference to Fig. 1, smoke exhaust pipe assembly 20 is connected with the second end of the regenerator 11 of two burners 10 to discharge to carry out the flue gas after heat exchange with heat storage 14 respectively, and particularly, smoke exhaust pipe assembly 20 is connected with the second outlet 172 with the first outlet 171 respectively.
Air supply pipe assembly 30 is connected with the second end of the regenerator 11 of two burners 10 respectively, and air supply pipe assembly 30 provides mist alternately in two burners 10.Wherein, air supply pipe assembly 30 provides mist by the first inlet tube 161 to the first burner 101, and air supply pipe assembly 30 provides mist by the second inlet tube 162 to the second burner 102.
When air supply pipe assembly 30 provides mist to one of them in two burners 10, the flue gas generated after mist burning is discharged with another part be connected in two burners 10 through smoke exhaust pipe assembly 20.That is, when air supply pipe assembly 30 provides mist to the first burner 101, the flue gas generated after mist burning is discharged by body of heater, the second burner 102 and smoke exhaust pipe assembly 20 successively, when air supply pipe assembly 30 provides mist to the second burner 102, the flue gas generated after mist burning is discharged by body of heater, the first burner 101 and smoke exhaust pipe assembly 20 successively.
Specifically, in the running of heat storage type porous medium burner assembly 100, mist, flue gas need regularly commutation, namely heat storage type porous medium burner assembly 100 is for being interrupted commutation type burning, and mist, the flue gas flow direction generating period in heat storage type porous medium burner assembly 100 sexually revises.For convenience of describing, heat storage type porous medium burner assembly 100 cycle of operation is divided into front half period and later half cycle, be set in first cycle of operation of heat storage type porous medium burner assembly 100, air supply pipe assembly 30 provides mist in the front half period to the first burner 101, and air supply pipe assembly 30 provides mist in the later half cycle to the second burner 102.
Referring to Fig. 1, the running of heat storage type porous medium burner assembly 100 is described for the course of work of first of heat storage type porous medium burner assembly 100 cycle of operation.
Before first cycle of operation in the half period: air supply pipe assembly 30 provides mist to the first inlet tube 161, mist enters the first combustion chamber 121 after flowing through the first regenerator 111, and mist is lighted by the first igniter 131.The heat bamboo telegraph that mist burning produces, because the specific area of porous media 15 is large, heat storage capacity strong, therefore porous media 15 temperature after heat absorption rises rapidly.Porous media 15 carries out preheating to the mist flowed in porous media 15, and the temperature of mist rises to more than ignition point and in the hole combustion of porous media 15.Because mist is in the hole combustion of porous media 15, therefore mist flameholding, fully.
To porous media 15 homogeneous heating in the first combustion chamber 121 after mist smooth combustion, with heat transfer and thermal-radiating mode, the peripheral region to porous media 15 heats the porous media 15 after heating.Because the heat storage capacity of heat storage 14 is high, the temperature of the heat storage 14 therefore in the first regenerator 111 rises rapidly.Heat storage 14 after heating carries out preheating to the mist entering the first regenerator 111, the temperature of mist rises, mist is shortened the preheating time after entering porous media 15, mist can burn rapidly, thus make the burning of mist more stable, abundant, and then add the heat production of mist, reduce energy resource consumption.Meanwhile, decrease the discharge of the pollutants such as nitrogen oxide, such as, in a concrete example of the present utility model, the growing amount of nitric oxide (NO), carbon monoxide (CO) significantly reduces.
Because the mist burning after preheating is more stable, and the thermal capacity of porous media 15 is larger, even if therefore the calorific value of mist fluctuates in combustion, porous media 15 also can holding temperature stable, thus make mist smooth combustion and do not extinguish, and then ensure the security of burner 10.Therefore when mist is in porous media 15 after smooth combustion, the first igniter 131 can quit work.
Still can smooth combustion when fluctuation occurs calorific value due to mist, therefore burner 10 can adapt to low-calorie fuel, and such as low concentration gas gas, organic exhaust gas, calorific value are lower than 1000kcal/Nm
3blast furnace gas etc.Simultaneously, the heat load adjustment ratio of burner 10 ratio of the rated load of burner 10 (minimum load namely during burner 10 trouble free service with) is larger, such as in a concrete example of the present utility model, heat load adjustment reaches 1:8 than maximum, thus makes the thermic load of burner 10 cross the adjustability had under operating mode by a relatively large margin.
The high-temperature flue gas produced after mist burning enters burner hearth, thus heats burner hearth.Because mist can smooth combustion in the first combustion chamber 121, therefore to transfer to the heat of burner hearth also more stable for high-temperature flue gas, thus ensure that the high homogeneity in temperature field in burner hearth.Afterwards, high-temperature flue gas flows into the second combustion chamber 122, and heats the porous media 15 in the second combustion chamber 122.Because the heat storage capacity of porous media 15 is strong, the temperature of the porous media 15 therefore in the second combustion chamber 122 rises rapidly and maintains higher temperature, and the temperature of partially porous medium 15 even reaches more than the ignition point of mist.High-temperature flue gas through preliminary cooling flows into the second regenerator 112 from the second combustion chamber 122, and carry out heat exchange with the heat storage 14 in the second regenerator 112, finally significantly reduce from the temperature of the flue gas of the second regenerator 112 discharge, thus realize the recovery of fume afterheat, improve the utilization ratio of fume afterheat.
Because fume afterheat can be recycled, because omitted herein the attached pre-heat recovery equipments such as heat exchanger, thus make the compact conformation of heat storage type porous medium burner assembly 100, and be convenient to sealing, and then ensure that the stability that heat storage type porous medium burner assembly 100 uses and security, also reduce the comprehensive method of investment cost of heat storage type porous medium burner assembly 100 simultaneously.
Within the later half cycle of first cycle of operation: air supply pipe assembly 30 provides mist to the second inlet tube 162, mist flows into the second regenerator 112 and carries out preheating.Mist after preheating flows into the second combustion chamber 122 again, and because the temperature within the front half period of the partially porous medium 15 in the second combustion chamber 122 reaches more than ignition point, therefore mist directly burns in porous media 15, and progresses into stable state.The flue gas produced after burning flows into burner hearth, then the first combustion chamber 121 and the first regenerator 111 is flowed through successively, and the porous media 15 in the first combustion chamber 121 and the heat storage 14 in the first regenerator 111 are heated, flue gas is finally directed to smoke exhaust pipe assembly 20 from the first outlet 171 and discharges.The heating process of mist to burner hearth after porous media 15 combustion of the second combustion chamber 122, identical with the respective process of mist within the front half period, just no longer describe in detail here.
Running after heat storage type porous medium burner assembly 100 is substantially identical with the course of work of first cycle of operation, will be not described in detail here.It is to be noted, after a cycle of operation, the temperature of the partially porous medium 15 in the first combustion chamber 121 and the partially porous medium 15 in the second combustion chamber 122 all can reach more than the ignition point of mist, mist is made to maintain fired state, therefore igniter 13 is without the need to work, thus avoids the setting of Everlasting fire device.
According to the heat storage type porous medium burner assembly 100 of the utility model embodiment, by at porous media 15 combustion mist, thus make mist flameholding, fully, and then add the heat production of mist, reduce energy resource consumption, decrease the discharge of pollutant simultaneously.Because the thermal capacity of porous media 15 is larger, make porous media 15 temperature stabilization, thus make mist flameholding, safety, and then make temperature field high uniformity in burner hearth, make the thermic load of burner 10 have adjustability by a relatively large margin, and burner 10 can adapt to low-calorie fuel simultaneously.By arranging the burner 10 of two alternate combustion, most of heat of flue gas can be absorbed by burned device 10, thus improve the utilization rate of smoke discharging residual heat.
In embodiments more of the present utility model, as shown in Figure 1, porous media 15 comprises the first sub-porous media 151 and the contiguous body of heater setting of the sub-porous media 152 of the second sub-porous media 152, second.Wherein, the specific area of the second sub-porous media 152 is greater than the specific area of the first sub-porous media 151, and that is, the pore diameter of the second sub-porous media 152 is comparatively large, and the pore diameter of the first sub-porous media 151 is less.
Because the pore diameter of the second sub-porous media 152 is comparatively large, therefore the second sub-porous media 152 can provide the combustion space of mist, mist can the second sub-porous media 152 in even, burn steadily, thus the generation of decreasing pollution thing and discharge.
When mist is after the second sub-porous media 152 combustion, flame is to the propagate upstream in simulation model for mixing gases flows direction, and that is, flame is propagated from the second sub-porous media 152 to the first sub-porous media 151.Because the pore diameter of the first sub-porous media 151 is less, therefore, the first sub-porous media 151 flame capable of blocking, thus ensure the security that heat storage type porous medium burner assembly 100 uses.In a concrete example of the present utility model, the flow velocity of mist is greater than flame propagation velocity, thus avoid the flame in the second sub-porous media 152 to the propagate upstream in simulation model for mixing gases flows direction, and then ensure the security that heat storage type porous medium burner assembly 100 uses further.
In addition, the heat of the first sub-porous media 151 Absorbable rod flame, to carry out preheating to the mist flowing through the first sub-porous media 151, thus makes the preheating time shortening of mist in the second sub-porous media 152, thus, mist can be lighted rapidly and Thorough combustion.
Alternatively, porous media 15 is foamed ceramics, and thus, heat-resisting quantity and the thermal conductivity of porous media 15 are stronger.
Further, heat storage 14 is honeycomb ceramics heat storage, thus, can ensure that heat storage 14 has higher heat storage capacity.
In a concrete example of the present utility model, as shown in Figure 1, the part that igniter 13 extend into combustion chamber 12 is positioned at the side of the contiguous body of heater of porous media 15.Specifically, between the porous media 15 of the part that first igniter 131 extend into the first combustion chamber 121 in the first combustion chamber 121 and body of heater, between the porous media 15 of the part that secondary igniter 132 extend into the second combustion chamber 122 in the second combustion chamber 122 and body of heater.
Preferably, igniter 13 is high-energy igniter, thus, can improve the efficiency of heating surface of igniter 13, makes the temperature of igniter 13 increase fast, thus mist can be lighted rapidly.
In embodiments more of the present utility model, as shown in Figure 1, air supply pipe assembly 30 comprises air supply header 31, two gas manifolds 32 and the first control valve 33, and each gas manifold 32 is connected between the regenerator 11 of air supply header 31 and corresponding burner 10.Particularly, air supply header 31 provides mist, and two gas manifolds 32 are respectively the first gas manifold 321 and the second gas manifold 322.First gas manifold 321 is connected with the first inlet tube 161 with air supply header 31 respectively, and the second gas manifold 322 is connected with the second inlet tube 162 with air supply header 31 respectively.
First control valve 33 is connected to air supply header 31 and two gas manifolds 32 respectively to control one of them conducting in air supply header 31 and two gas manifolds 32.Thus, air supply pipe assembly 30 alternately provides mist to the first burner 101 and the second burner 102.
In a concrete example of the present utility model, before heat storage type porous medium burner assembly 100 runs in the half period, first control valve 33 controls air supply header 31 and the first gas manifold 321 conducting, now, be in closed condition between air supply header 31 and the second gas manifold 322, mist flows into the first burner 101 after air supply header 31 flows through the first gas manifold 321.Within the later half cycle that heat storage type porous medium burner assembly 100 runs, first control valve 33 controls air supply header 31 and the second gas manifold 322 conducting, now, be in closed condition between air supply header 31 and the first gas manifold 321, mist flows into the second burner 102 after air supply header 31 flows through the second gas manifold 322.
Alternatively, as shown in Figure 1, the first control valve 33 is triple valve, thus makes air supply pipe assembly 30 structure simple, compact.
In specific embodiments more of the present utility model, as shown in Figure 1, air supply header 31 is provided with first and pneumaticly cuts valve 34 soon, thus when heat storage type porous medium burner assembly 100 occurs abnormal, first pneumaticly cuts the flowing that valve 34 can block rapidly mist in air supply header 31 soon, and then ensures the safety in utilization of heat storage type porous medium burner assembly 100.
Alternatively, as shown in Figure 1, two gas manifolds 32 are respectively equipped with one second and pneumaticly cut valve 35 soon, thus, when heat storage type porous medium burner assembly 100 occurs abnormal, mist in two gas manifolds 32 can be blocked rapidly, thus improves the safety in utilization of heat storage type porous medium burner assembly 100.
Further, as shown in Figure 1, two gas manifolds 32 are respectively equipped with first flow control valve 36, thus, the flow of adjustable mist, thus the heat regulating burner 10 release when running, and then thermic load adjustable realizing burner 10.Alternatively, first flow control valve 36 is Hand-operated butterfly valve.
In embodiments more of the present utility model, mist comprises fuel gas and air, because the mist after preheating can Thorough combustion in porous media 15, therefore in a concrete example of the present utility model, the excess air coefficient of mist is 1, thus avoids air too much to cause thermal loss.Alternatively, air supply header 31 is provided with gas mixing device (scheming not shown), thus make fuel gas and air can mixed evenly after, then flow into burner 10 and burn.Thus, the uniformity that mist burns and adequacy can be ensured, thus improve the degree of regulation of the thermic load of burner 10.
In embodiments more of the present utility model, as shown in Figure 1, smoke exhaust pipe assembly 20 comprises smoke evacuation house steward 21, two smoke evacuation arm 22 and the second control valve 23, and wherein, each smoke evacuation arm 22 is connected between the regenerator 11 of smoke evacuation house steward 21 and corresponding burner 10.Particularly, two smoke evacuation arms 22 comprise first row cigarette pipe 221 and second row cigarette pipe 222, and first row cigarette pipe 221 is connected with the first outlet 171, and second row cigarette pipe 222 is connected with the second outlet 172.
Second control valve 23 is connected to smoke evacuation house steward 21 and two smoke evacuation arms 22 to control discharge fume house steward 21 and two one of them conductings of discharging fume in arm 22.Particularly, when air supply pipe assembly 30 provides mist to the first burner 101, second control valve 23 controls smoke evacuation house steward 21 and the conducting of second row cigarette pipe 222, now, is discharged after flue gas flows into second row cigarette pipe 222 from the second outlet 172 by smoke evacuation house steward 21.When air supply pipe assembly 30 provides mist to the second burner 102, the second control valve 23 controls smoke evacuation house steward 21 and the conducting of first row cigarette pipe 221, now, is discharged after flue gas flows into first row cigarette pipe 221 from the first outlet 171 by smoke evacuation house steward 21.
Alternatively, the second control valve 23 is triple valve, thus makes smoke exhaust pipe assembly 20 structure simple, compact.
Alternatively, as shown in Figure 1, two smoke evacuation arms 22 are respectively equipped with a second adjustable valve 24, thus regulate the flue gas flow in two smoke evacuation arms 22 respectively, further alternatively, smoke evacuation house steward 21 is also provided with the 3rd flow control valve 25, thus regulates the flue gas flow in smoke evacuation house steward 21, thus, the regulating power of heat storage type porous medium burner assembly 100 can be improved.Preferably, second adjustable valve 24 and the 3rd flow control valve 25 are respectively Hand-operated butterfly valve.
In embodiments more of the present utility model, the scope of the thermic load of burner 10 is 50 × 10
3kcal/h to 150 × 10
4kcal/h, the temperature of burner hearth can be heated between 500 DEG C to 1000 DEG C.
In an illustrative examples of the present utility model, the mist that air supply pipe assembly 30 provides comprises blast furnace gas and air, and excess air coefficient is 1, and wherein, the calorific value of blast furnace gas is 750Kcal/Nm
3, the metered flow of blast furnace gas is 1335Nm
3/ h, combustion-supporting air quantity is 935Nm
3/ h.The inner cavity size of each burner 10 is 600mm × 700mm × 800mm, and the first inlet tube 161 and the second inlet tube 162 are respectively the pipeline of DN250, and the first outlet 171 and the second outlet 172 are also respectively the pipeline of DN250.Heat storage 14 is honeycomb ceramics heat storage, and the specific area of heat storage 14 is 800m
2/ m
3, in each regenerator 11, the volume of heat storage 14 is 0.168m
3.Porous media 15 is foamed ceramics, and the pore diameter of the first sub-porous media 151 is 1mm to 2mm, and the pore diameter of the second sub-porous media 152 is 2mm to 4mm.In each combustion chamber 12, the volume of the first sub-porous media 151 is 0.021m
3, the volume of the second sub-porous media 152 is 0.084m
3.Exhaust gas temperature is lower than 180 DEG C, and the temperature of furnace chamber regulates between 500 DEG C to 1100 DEG C.The thermic load of burner 10 is 100 × 10
4kcal/h, can realize thermic load scope 13 × 10
4kcal/h to 100 × 10
4adjustment between Kcal/h.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (16)
1. a heat storage type porous medium burner assembly, is characterized in that, comprising:
Body of heater;
Two burners, described body of heater is connected between described two burners, each described burner comprises: regenerator, combustion chamber and igniter, heat storage is filled with in described regenerator, described combustion chamber is connected with described body of heater with the first end of described regenerator respectively, be filled with porous media in described combustion chamber, described igniter extend in described combustion chamber to provide burning things which may cause a fire disaster;
Smoke exhaust pipe assembly, described smoke exhaust pipe assembly is connected to discharge with the second end of the described regenerator of described two burners respectively and carries out the flue gas after heat exchange with described heat storage;
Air supply pipe assembly, described air supply pipe assembly is connected to provide mist alternately in described two burners respectively with the second end of the described regenerator of described two burners, wherein, when described air supply pipe assembly provides mist to one of them in described two burners, the flue gas generated after described mist burning is discharged with another part be connected in described two burners through described smoke exhaust pipe assembly.
2. heat storage type porous medium burner assembly according to claim 1, it is characterized in that, described porous media comprises the first sub-porous media and the second sub-porous media, the contiguous described body of heater of described second sub-porous media is arranged, and the specific area of described second sub-porous media is greater than the specific area of described first sub-porous media.
3. heat storage type porous medium burner assembly according to claim 1, is characterized in that, the part that described igniter extend into described combustion chamber is positioned at the side of the described body of heater of vicinity of described porous media.
4. heat storage type porous medium burner assembly according to claim 1, is characterized in that, described igniter is high-energy igniter.
5. heat storage type porous medium burner assembly according to claim 1, is characterized in that, described porous media is foamed ceramics.
6. heat storage type porous medium burner assembly according to claim 1, is characterized in that, described heat storage is honeycomb ceramics heat storage.
7. heat storage type porous medium burner assembly according to claim 1, is characterized in that, described mist comprises fuel gas and air.
8. heat storage type porous medium burner assembly according to claim 7, is characterized in that, the excess air coefficient of described mist is 1.
9. heat storage type porous medium burner assembly according to claim 1, is characterized in that, described air supply pipe assembly comprises:
Air supply header;
Two gas manifolds, each described gas manifold is connected between the described regenerator of described air supply header and corresponding described burner;
First control valve, described first control valve is connected to described air supply header and described two gas manifolds respectively to control one of them conducting in described air supply header and described two gas manifolds.
10. heat storage type porous medium burner assembly according to claim 9, is characterized in that, described first control valve is triple valve.
11. heat storage type porous medium burner assemblies according to claim 9, is characterized in that, described air supply header are also provided with first and pneumaticly cut valve soon.
12. heat storage type porous medium burner assemblies according to claim 9, is characterized in that, described two gas manifolds are respectively equipped with second and pneumaticly cut valve soon.
13. heat storage type porous medium burner assemblies according to claim 9, is characterized in that, described two gas manifolds are respectively equipped with first flow control valve.
14. heat storage type porous medium burner assemblies according to claim 1, is characterized in that, described smoke exhaust pipe assembly comprises:
Smoke evacuation house steward;
Two smoke evacuation arms, each described smoke evacuation arm is connected between described smoke evacuation house steward and the described regenerator of corresponding described burner;
Second control valve, described second control valve be connected to described smoke evacuation house steward and described two smoke evacuation arms to control described smoke evacuation house steward and described two one of them conductings of discharging fume in arm.
15. heat storage type porous medium burner assemblies according to claim 14, is characterized in that, described two smoke evacuation arms are respectively equipped with second adjustable valve.
16. heat storage type porous medium burner assemblies according to claim 14, is characterized in that, described smoke evacuation house steward is also provided with the 3rd flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420766783.XU CN204438099U (en) | 2014-10-22 | 2014-12-08 | Heat storage type porous medium burner assembly |
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| CN201410568615 | 2014-10-22 | ||
| CN2014105686154 | 2014-10-22 | ||
| CN201420766783.XU CN204438099U (en) | 2014-10-22 | 2014-12-08 | Heat storage type porous medium burner assembly |
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| CN204438099U true CN204438099U (en) | 2015-07-01 |
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| CN201420766783.XU Expired - Fee Related CN204438099U (en) | 2014-10-22 | 2014-12-08 | Heat storage type porous medium burner assembly |
| CN201410743847.9A Active CN104456537B (en) | 2014-10-22 | 2014-12-08 | Heat storage type porous medium burner assembly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456537A (en) * | 2014-10-22 | 2015-03-25 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulating type porous medium combustor component |
| CN106051777A (en) * | 2016-07-27 | 2016-10-26 | 北京神雾环境能源科技集团股份有限公司 | Porous medium combustion device for garbage pyrolysis |
| CN106288370A (en) * | 2016-09-07 | 2017-01-04 | 河北工业大学 | Gas fired-boiler based on multi-hole medium combustion technology |
| CN108139074A (en) * | 2015-07-21 | 2018-06-08 | 波利多罗有限公司 | With top adjustment than gas fired-boiler |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051817A (en) * | 2016-07-20 | 2016-10-26 | 北京神雾环境能源科技集团股份有限公司 | Ignition nozzle for heat accumulation burner and burner |
| CN112240545B (en) * | 2020-10-21 | 2023-01-17 | 中国石油化工股份有限公司 | Low-nitrogen combustor, combustor assembly and low-nitrogen combustor system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08291911A (en) * | 1995-04-21 | 1996-11-05 | Tokyo Gas Co Ltd | Regenerative combustion system |
| CN101900332B (en) * | 2010-05-07 | 2011-12-28 | 大连海事大学 | Heat accumulation type super-low calorific value fuel gas treatment and energy utilization device |
| CN202012917U (en) * | 2011-04-01 | 2011-10-19 | 湖南润丰能源科技发展有限公司 | Air and smoke pipeline switching type catalysis/heat storage combustion boiler |
| CN202066349U (en) * | 2011-04-22 | 2011-12-07 | 浙江大学 | Reciprocating porous medium gas combustion metal smelting furnace |
| CN203052664U (en) * | 2013-01-16 | 2013-07-10 | 浙江大学 | High-temperature gas generating device based on porous medium combustion and thermal storage |
| CN204438099U (en) * | 2014-10-22 | 2015-07-01 | 北京神雾环境能源科技集团股份有限公司 | Heat storage type porous medium burner assembly |
-
2014
- 2014-12-08 CN CN201420766783.XU patent/CN204438099U/en not_active Expired - Fee Related
- 2014-12-08 CN CN201410743847.9A patent/CN104456537B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456537A (en) * | 2014-10-22 | 2015-03-25 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulating type porous medium combustor component |
| CN108139074A (en) * | 2015-07-21 | 2018-06-08 | 波利多罗有限公司 | With top adjustment than gas fired-boiler |
| CN108139074B (en) * | 2015-07-21 | 2019-11-05 | 波利多罗有限公司 | Gas fired-boiler with top adjustment ratio |
| CN106051777A (en) * | 2016-07-27 | 2016-10-26 | 北京神雾环境能源科技集团股份有限公司 | Porous medium combustion device for garbage pyrolysis |
| CN106288370A (en) * | 2016-09-07 | 2017-01-04 | 河北工业大学 | Gas fired-boiler based on multi-hole medium combustion technology |
| CN106288370B (en) * | 2016-09-07 | 2021-09-24 | 河北工业大学 | Gas boiler based on porous medium combustion technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104456537B (en) | 2018-01-19 |
| CN104456537A (en) | 2015-03-25 |
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