CN102345850A - Thermal recovery system with improved thermal efficiency and thermoelectric combined production system equipped with the thermal recovery system - Google Patents
Thermal recovery system with improved thermal efficiency and thermoelectric combined production system equipped with the thermal recovery system Download PDFInfo
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- CN102345850A CN102345850A CN2011100099776A CN201110009977A CN102345850A CN 102345850 A CN102345850 A CN 102345850A CN 2011100099776 A CN2011100099776 A CN 2011100099776A CN 201110009977 A CN201110009977 A CN 201110009977A CN 102345850 A CN102345850 A CN 102345850A
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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
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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Abstract
The invention provides a thermal recovery system with improved thermal efficiency and a thermoelectric combined production system equipped with the thermal recovery system. A combustion apparatus includes a cylindrical combustion chamber surrounded by an inner wall. A cooling chamber comprises an intermediate wall spaced from the inner wall. Cooling water flows in and out lower and upper sides of the intermediate wall, to cool the inner wall by the cooling water that flows into a space formed between the inner and intermediate walls of the cooling chamber. A lateral combustion air supply chamber comprises an outer wall spaced from an outer side of the intermediate wall. Combustion air is supplied at an upper side of the outer wall to thereby make the air in a tangential direction with respect to the cylindrical outer wall turn and fall in a space formed between the intermediate wall and the outer wall, so that the combustion air is supplied to the combustion chamber via an opened lower portion of the lateral combustion air supply chamber.
Description
Technical field
The present invention relates to a kind of heat recovery system with improved heat recovery rate; Relate in particular to a kind of like this heat recovery system; Promptly this heat recovery system collects to be used as the recovery energy from the heat of combustion gas and with collected heat; Wherein, combustion gas is through the burnings such as solid fuel in the combustion chamber are generated; And relate to a kind of co-generation unit that uses this heat recovery system.
Background technology
Usually, need the industrial plants of industrial hot water, high-temperature steam or gas to use burner to generate heat energy respectively, burner fire fuel and make fuel combustion in combustion container.In addition; Consider from the aspect of business efficiency and resource regeneration; Solid fuel is being widely used as the fuel that in burner, uses; For example; Refuse is become garbage derivatived fuel (the Refuse Derived Fuel of fuel; RDF) maybe discarded plastic wastes are become fuel refuse plastic fuel (Refuse Plastic Fuel, RPF).
Yet; Because these existing combustion apparatus have utilized the method for a large amount of solid fuels being put into the bottom of combustion container and making these solid fuel ignitions; So these solid fuels possibility imperfect combustions, thereby cause solid-fuelled waste, and reduced the thermal efficiency.In addition, owing to all can generate a large amount of ashes at every turn, therefore be not easy to make up the automatic processing of residual ashes, and be inconvenient to residual ashes are taken out from the bottom of combustion container.In addition, if solid fuel in the completing combustion of the bottom of combustion container, then new solid fuel should be put into the bottom of combustion container and then light, thereby be difficult to carry out the continuous burning process and make calorific value uneven.
In addition, these solid fuels can cause following problem, promptly during burning, discharge a large amount of gases or the particulate of contaminated environment, like dust, carbon monoxide, cigarette ash, gaseous state HCL, SOx, NOx and dioxin (dioxin).
In order to address these problems, developed burner shown in Figure 1 1000.Thermal-arrest burner 1000 according to prior art makes the solid fuel ignition that is fed to combustion container 1 from fuel charging means 3, thereby generates hot combustion gas.Here, the passage 120a air that combustion fuel is required via passage 140a, rotary current supply room 130 and the inwall 120 of aircooling cabinet 150, midfeather 140 is fed to combustion chamber 110 from the outside.
Under the situation of the existing heat recovery system of using burner 1000; The boiler (not shown) is connected to burner 1000; And the high-temperature fuel gas that the fuel combustion in the combustion chamber 110 is generated via elbow fuel gas exhaust pipe 4 is fed to boiler; Thereby collect from the heat of combustion gas, and then produce process steam or hot water.
Yet, owing to be that single boiler is connected to single combustion apparatus in the existing heat recovery system that is used to collect heat, so be difficult to obtain a large amount of combustion gas.In order to obtain a large amount of combustion gas, the size of the combustion container in the combustion apparatus needs very big, but the increase of the size of combustion container is restricted.Therefore, be difficult to obtain high steam.
In addition, the fuel gas exhaust pipe 4 that is comprised in the burner 1000 that in existing heat recovery system, uses is formed by refractory walls, because refractory walls continues the combustion gas of contact elevated temperature heat, the time has been grown, and fuel gas exhaust pipe 4 may break.Like this, the fuel gas exhaust pipe 4 fuel gas exhaust pipe that may not must renew again with the long time.In addition, the ashes or the molecule that are included in the combustion gas may adhere on the refractory walls, thereby are not easy to be removed.
In addition, combustion air only is fed to the solid-fuelled outside in the combustion chamber of having packed into.Correspondingly, fully burn in solid-fuelled outside, but its inside possibly be difficult to the required air of catalytic combustion, therefore maybe imperfect combustion.So just reduced efficiency of combustion.In addition, the inwall of combustion chamber is exposed under the high-temperature fuel gas enduringly, and long-term use can be out of shape or break, thereby reduces durability.
Summary of the invention
In order to solve the problems referred to above of prior art, an object of the present invention is to provide a kind of heat recovery system, it can produce a large amount of high steams.
In addition; The co-generation unit that another object of the present invention provides a kind of heat recovery system and uses this heat recovery system, this heat recovery system guarantee the solid fuel completing combustion of inside, combustion chamber of packing into, thereby reduce thermal loss; Improve heat recovery rate, and strengthen durability.
In order to reach above-mentioned purpose of the present invention, according to an aspect of the present invention, a kind of heat recovery system with improved heat recovery rate is provided, comprising:
A plurality of combustion apparatus, each in said a plurality of combustion apparatus comprises: combustion container is used to receive the combustion gas by the outside supply, and makes the fuel combustion that is placed in the said combustion container; Feed unit is fed to said combustion container with said fuel; And combustion gas deliverying unit; Be arranged at the top of said combustion container; The bottom of said combustion gas deliverying unit communicates with the top of said combustion container; Thereby discharge high-temperature fuel gas through said combustion gas deliverying unit, said high-temperature fuel gas produces to said combustion container supplied fuel burning through making from said feed unit;
Collection chamber links to each other with said a plurality of combustion apparatus, is used for the high-temperature fuel gas that produces at said a plurality of combustion apparatus is collected a place;
And boiler, be used to receive the high-temperature fuel gas that said collection chamber is collected, and collect heat from the combustion gas of being supplied through heat exchanging process.
Preferred but non-essential; In said collection chamber, be formed with the unit, gas outlet; Combustion gas gets into said boiler through unit, said gas outlet from said a plurality of combustion apparatus; Along with the combustion gas of introducing towards said gas outlet cell moving; And the internal cross-sectional area of said collection chamber becomes big gradually along with trending towards unit, said gas outlet; The combustion gas of introducing from said a plurality of combustion apparatus increases, thereby makes the combustion gas that gets into said collection chamber flow out through unit, said gas outlet.
Preferred but non-essential; Said a plurality of combustion apparatus is arranged as around said collection chamber and faces with each other; Thereby make said combustion gas get into said collection chamber from the both sides of said collection chamber, wherein, said combustion gas is fed to said collection chamber from said a plurality of combustion apparatus.
According to an aspect of the present invention; Provide a kind of comprise steam turbine and the co-generation unit of power generator; Wherein, To be supplied to steam turbine through the steam that produces with the combustion gas heat exchange in the boiler of said heat recovery system; Power generator is used for electric power, thereby obtains steam and electric power.
The invention provides a kind of heat recovery system that can produce a large amount of high steams.
The co-generation unit that the invention provides a kind of heat recovery system and use this heat recovery system, this heat recovery system have guaranteed the solid fuel completing combustion of inside, combustion chamber of packing into, thereby reduce thermal loss, improve heat recovery rate, and strengthen durability.
Description of drawings
According to describing the preferred embodiments of the present invention in more detail with reference to accompanying drawing, above-mentioned purpose and advantage with other of the present invention will become more obvious, wherein:
Fig. 1 illustrates the sketch map according to the burner of prior art;
Fig. 2 illustrates the sketch map according to the heat recovery system with improved heat recovery rate of first embodiment of the invention;
Fig. 3 is the side view of Fig. 2;
Fig. 4 illustrates the combustion gas deliverying unit of Fig. 3 and the schematic plan view of U-shaped flowing gas chamber;
Fig. 5 illustrates the cutaway view according to combustion apparatus of the present invention;
Fig. 6 illustrates the cutaway view of combustion apparatus one side of Fig. 5;
Fig. 7 illustrates the cutaway view according to the feed unit of combustion apparatus of the present invention;
Fig. 8 is the longitudinal sectional view according to the boiler in the heat recovery system of the present invention;
Fig. 9 illustrates the plane according to the heat recovery system of second embodiment of the invention;
Figure 10 illustrates the schematic block diagram according to co-generation unit of the present invention;
Figure 11 illustrates the schematic block diagram that air pollution according to the present invention prevents equipment, and this air pollution prevents the combustion gas in the equipment clean heat recovery system;
The air pollution that Figure 12 illustrates Figure 11 prevents the sketch map of the centrifugal dirt collector in the equipment;
The air pollution that Figure 13 illustrates Figure 11 prevents the sketch map of the half dry type reactor in the equipment;
The air pollution that Figure 14 illustrates Figure 11 prevents the sketch map of the dry type reactor in the equipment; And
The air pollution that Figure 15 illustrates Figure 11 prevents the sketch map of the filter dust collector in the equipment.
The specific embodiment
To the heat recovery system with improved heat recovery rate according to first embodiment of the invention be described with reference to accompanying drawing (Fig. 2 to Fig. 8).
Fig. 2 illustrates the sketch map according to the heat recovery system with improved heat recovery rate of first embodiment of the invention.Fig. 3 is the side view of Fig. 2.Fig. 4 illustrates the combustion gas deliverying unit of Fig. 3 and the schematic plan view of U-shaped flowing gas chamber.Fig. 5 illustrates the cutaway view according to combustion apparatus of the present invention.Fig. 6 illustrates the cutaway view of combustion apparatus one side of Fig. 5.Fig. 7 illustrates the cutaway view according to the feed unit of combustion apparatus of the present invention.Fig. 8 is the longitudinal sectional view according to the boiler in the heat recovery system of the present invention.
According to first embodiment of the invention, the heat recovery system with improved heat recovery rate comprises: a plurality of combustion apparatus 100; Collection chamber 60, the high-temperature fuel gas that will in a plurality of combustion apparatus 100, produce is collected a place; And boiler 200, collect from the heat of combustion gas through heat exchanging process.
Each combustion apparatus 100 all makes the fuel combustion that is contained in this combustion apparatus 100 to discharge high-temperature fuel gas, and each combustion apparatus 100 all comprises: combustion container 10 has and makes the combustion chamber 11 that is placed in fuel combustion wherein; Feed unit 40 supplies fuel to combustion chamber 11; And combustion gas deliverying unit 30, the combustion gas that combustion container 10 produces is discharged.
Side burning air inlet chamber 15 is formed between the midfeather 14 of combustion container 10 and outer wall 16 in the space that forms, this outer wall 16 form and the outside of midfeather 14 between have at interval.The required air of the burning of outside supply provides from combustion air supply inlet 16a, and combustion air supply inlet 16a is formed on the upside of outer wall 16.The bottom 12a of side burning air inlet chamber 15 opens wide.Combustion air supply inlet 16a is forming with cylindrical outer wall 16 relevant tangential directions.Correspondingly,, be supplied in the combustion chamber 11 by the bottom 12a that opens wide then in the inside of side burning air inlet chamber 15 revolution, downward through combustion air supply inlet 16a air supplied via side burning air inlet chamber 15.
In addition, be formed on the last circumference of combustion chamber 11 from the upside combustion air supply room 20 of upper side supply combustion air.Upside combustion air supply room 20 combines through the upside of wheel rim 18 with cooling chamber 13 and side burning air inlet chamber 15; Upside combustion air supply room 20 comprises: rotary current supply room 23; Be formed on the periphery of inwall 22 on the cylindrical shape (inboard), thereby it is inboard that combustion air is fed to going up of combustion chamber 11 around going up of combustion chamber 11; And preheating chamber 25, be formed on the periphery of rotary current supply room 23, so that be the combustion airs of rotary current supply room 23 supplies from the outside supply.
Rotary current supply room 23 is formed in the space that forms between inwall 22 and the last midfeather 24, has between the outside of last midfeather 24 and last inwall 22 at interval; Preheating chamber 25 is formed in the space that forms between midfeather 24 and the last outer wall 26, has between the outside of last outer wall 26 and last midfeather 24 at interval.Upside air supply inlet 26a is formed on the bottom of outer wall 26; Be positioned at the tangential direction relevant with last outer wall 26; Air duct 24a is formed on the upper end (upper end) of midfeather 24, thereby makes the combustion air of being supplied by the outside turn round and be supplied in the preheating chamber 25.The combustion gas that gets into preheating chamber 25 is turned round in this preheating chamber 25, is risen; Air duct 24a via the upper end that is formed on midfeather 24 moves to its underpart from the top of rotary current supply room 23 then, and then is supplied to the top of combustion chamber 11 via the combustion air service duct 22a that the lower end at last inwall 22 forms.Combustion air is being sentenced along the arbitrfary point of the circumference of cylindrical shape rotary current supply room 23 with respect to the angle supplies of center position with about 10 degree to 60 degree by upside combustion air feeding unit; Make to be supplied to the air of combustion gas to confirm indirectly, and then reduce the pollution that causes owing to imperfect combustion.
The top of combustion container 10 is opened wide, so that the combustion gas of discharging elevated temperature heat, and will introduce boiler 200 through the hot combustion gas that combustion gas discharge pipe 30, U-shaped flowing gas chamber 50 and collection chamber 60 are discharged, thus heat collected.The collect heat of self-heating combustion gas of boiler, thus elevated temperature heat steam obtained.Here, the cooling water of discharging from coolant outlet 14b is introduced into boiler 200, uses the heat of combustion gas that cooling water is changed into steam then.
Simultaneously, at the lower edge formation overall ash emission mouth 19 of combustion container 10, thereby the solid-fuelled ashes after will burning are discharged.
In addition, rotatable rotary formula fire grate (grate) 17 (double-edged fine-toothed comb is to be used at its end face solid-fuelled plate of packing into) is installed in 11 bottom in the combustion chamber.Revolving grate 17 is made into discoid, plays the effect of the solid fuel ignition that makes its end face of packing into.Revolving grate 17 is have a down dip its outside flex point, the flex point outermost that is inclined upwardly from the outside then of mind-set therefrom.Therefore, the side cross section of revolving grate 17 is a V-arrangement.Be formed for being the solid-fuelled feed unit 40 of revolving grate 17 supplies at the center of revolving grate 17.
As shown in Figure 7, vertically form feed unit 40 in combustion container 10 lower central, the side in the bottom of feed unit 40 forms fuel inlet 44.In addition, fuel supply pipe 41 is set in feed unit 40, thereby solid fuel is fed in the combustion chamber 11 through vertical transmission screw unit 42.In addition; Diameter is greater than the fuel supply pipe 41 and the outside that is formed on fuel supply pipe 41 with the bottom combustion air supply pipe 43 that the concentric circles form forms; Wherein, 11 bottom is fed to combustion air the inside of combustion chamber 11 to bottom combustion air supply pipe 43 from the combustion chamber through air feeding unit 45 (like the ring drums blower fan).
Comprise from the fuel supply pipe 41 outstanding upper ends of stretching into the feed unit 40 the combustion chamber 11: the 41a of enlarged-diameter portion, its diameter increase (becoming big) gradually towards the top; And inclined-plane guide part 41b, from the end portion downwarping of the 41a of enlarged-diameter portion and be formed slopely.Correspondingly, via outstanding 41a of enlarged-diameter portion and the inclined-plane guide part 41b that stretches into combustion chamber 11, solid fuel stably is fed to revolving grate 17.Circumference at the 41a of enlarged-diameter portion is formed with a plurality of air supply mouth (air feed nozzles) 41c, thereby the combustion air of bottom combustion air supply pipe 43 supplies is introduced combustion chamber 11.
In addition; The combustion air supply pipe 43 outstanding upper ends of stretching into the feed unit 40 the combustion chamber 11 comprise from the bottom: the air supply enlarged-diameter 43a of portion; Its diameter increases and is positioned at the downside of the 41a of enlarged-diameter portion of fuel supply pipe 41 gradually towards the top, and through the inclined-plane guide part 41b of fuel supply pipe 41 upper end of the air supply enlarged-diameter 43a of portion is closed.Like this; Combustion air through 43 supplies of bottom combustion air supply pipe is guided by the air supply enlarged-diameter 43a of portion; Be supplied to the bottom of fuel then through a plurality of air supply mouth 41c; Wherein, a plurality of air supply mouth 41c are formed at the enlarged-diameter portion 41a place at the upside of fuel supply pipe 41.
Simultaneously; Can air feeding unit (like the ring drums blower fan) be set at the opposite side of the bottom of fuel supply pipe 41; Thereby can fall after rise (reversed into) to be stored in the solid fuel in the fuel supply pipe 41 with the solid fuel that prevents burning in combustion chamber 11 through these fuel supply pipe 41 supply combustion airs.
According to above-mentioned configuration; Solid fuel is supplied to the center of the upper surface of revolving grate 17 through fuel supply pipe 41, and combustion air directly is fed to solid-fuelled bottom through the air supply mouth 41c that the enlarged-diameter portion 41a place at fuel supply pipe 41 forms.
Thereby in fuel supply pipe 41, form fuel is sent to the spirality screw rod blade 42e that the transmission screw unit 42 in the combustion chamber 11 comprises screw shaft 42d and on screw shaft 42d, forms.Transmit screw unit 42 through rotation of motor (not shown) and transmission fuel.In addition, the top 42a of screw shaft 42d extends to the outside of fuel supply pipe 41, and outstanding extending in the combustion chamber 11.Supply the top 42a that element 42b is formed on outstanding screw shaft 42d through fuel supply pipe 41 with the radial fuel that fuel radially is fed in the combustion chamber 11.
The axial quadrature of radial fuel supply element 42b and screw shaft 42d, and outstanding formation rotate with screw rod, thereby will radially be fed in the combustion chamber 11 through the fuel that fuel supply pipe 41 rises.As previously mentioned, will radially be fed to the combustion chamber 11 from the solid fuel of fuel supply pipe 41 supply constantly, thereby can prevent that clinker from blocking air supply mouth 41c.
In addition, the axial quadrature of fuel height control support 42c and screw shaft 42d, and outstanding formation are installed in the outstanding end of stretching into the top 42a of the screw shaft 42d in the combustion chamber 11.As shown in Figure 7, fuel height control support 42c has upper conical portion, and its structure is that its lower surface axially is blocked with respect to screw shaft 42d's, thereby makes that fuel is not to continue to move up but outwards promotion of quilt.Therefore, can control the 41a of enlarged-diameter portion and burning in the combustion chamber 11 of packing into the height of the fuel on 17 the top of combing rightly, thereby guarantee the ideal burning of fuel.
Simultaneously, like Fig. 3 and shown in Figure 4, combustion gas deliverying unit 30 is installed to the top of combustion container 10, and forms hollow shape.The high-temperature fuel gas that produces through the solid fuel ignition that makes in the combustion chamber 11 gets into U-shaped flowing gas chamber 50 through combustion gas deliverying unit 30.The bottom of combustion gas deliverying unit 30 communicates with the top of combustion container 10, and a side of the side of combustion gas deliverying unit 30 communicates with U-shaped flowing gas chamber 50.Form jagged water pipe 34 in sidewall 32 and the upper wall 33, sidewall 32 constitutes wall main bodys 31 (forming the main body of combustion gas deliverying unit 30) and sidewall 32 and upper wall 33 with upper wall 33 and is connected to each other.As shown in Figure 2, water gets into the water pipe 34 of combustion gas deliverying unit 30 from water tank 75 through fortune water pipeline 76.Because wall main body 31 is by the combustion gas heating, the water of circulation becomes steam in the water pipe 34 of combustion gas deliverying unit 30.Through steamline 71 with vapor collection in steam tympanum 70, the steam collected of steam tympanum 70 offers industrial plants together with the steam that produces in the boiler 200 then.Preferably, the main body of combustion gas deliverying unit 30 is processed by steel.In the present invention's instance as shown in Figure 4, water pipe 34 is embedded in the wall main body 31, but water pipe 34 also can be arranged on outside the wall main body 31.
Through this configuration; Though combustion gas deliverying unit 30 continues the contact high-temperature fuel gas; But the water pipe 34 of the main body that the temperature of combustion gas rejected unit 30 can be through being positioned at combustion gas deliverying unit 30 is minimized; Thereby improved the durability of combustion gas deliverying unit 30; And the water steam that circulation time produces in water pipe 34 is provided for industrial plants, thereby has improved the steam quantum of output.In addition, the main body of combustion gas deliverying unit 30 is processed by steel, compares with the existing combustion gas deliverying unit that is formed by the refractory walls main body, because the difference of material, can reduce adhering to of ashes or limited particle in the combustion gas widely.
U-shaped flowing gas chamber 50 is installed between combustion gas deliverying unit 30 and the collection chamber 60, thereby can will collect the collection chamber 60 from the combustion gas that combustion gas deliverying unit 30 is introduced via U-shaped flowing gas chamber 50.U-shaped flowing gas chamber 50 forms hollow shape.Air inlet 57 is formed on the left side of U-shaped flowing gas chamber 50, and gas outlet 58 is formed on top one side of U-shaped flowing gas chamber 50, and combustion gas gets into from combustion gas deliverying unit 30 through air inlet 57, is discharged to collection chamber 60 through gas outlet 58.In addition, in wall main body 51, be formed with and be arranged in jagged water pipe 54, wall main body 51 forms the main body of U-shaped flowing gas chambers 50.Water gets into the water pipe 54 of U-shaped flowing gas chamber 50 from water tank 75 through fortune water pipeline 76.Because wall main body 51 is by the combustion gas heating, the water of circulation becomes steam in the water pipe 54 of U-shaped flowing gas chamber 50.Through steamline 71 with vapor collection in steam tympanum 70, the steam collected of steam tympanum 70 offers industrial plants together with the steam that produces in the boiler 200 then.In this instance of the present invention, water pipe 54 is embedded in the wall main body 51, but water pipe 54 also can be arranged on outside the wall main body 51.
In addition; U-shaped flowing gas chamber 50 comprises: ashes gatherer 56 and ashes dispatch tube 56a; Ashes gatherer 56 is positioned at 50 lower ends, U-shaped flowing gas chamber; So that collect the ashes that are included in through in the combustion gas of U-shaped flowing gas chamber 50, ashes dispatch tube 56a sees ashes gatherer 56 collected ashes off.Ashes transmit screw rod 56b and are installed in the ashes dispatch tube 56a.U-shaped flowing gas chamber 50 also comprises the movement-oriented plate 59 of U-shaped, its from the top of U-shaped flowing gas chamber 50 to extending below, thereby be easy to discharge the ashes that in inside combustion gas, comprise through U-shaped flowing gas chamber 50.
In addition, rake 51a is formed on the front of 50 bottoms, U-shaped flowing gas chamber, the ashes that are included in the combustion gas is collected in the ashes gatherer 56 being easy to.Like this, the overall ash emission mouth 19 that the most of ashes that produce after fuel burns in combustion chamber 11 all pass through in the combustion chamber 11 is discharged, and residual minority ashes can be discharged through the ashes gatherer 56 of U-shaped flowing gas chamber 50 in combustion gas.Like this, can reduce the quantity that gets into the pollutant (for example being included in the ashes in the combustion gas) in the boiler 200.
The bottom that a plurality of air inlets unit 61 that is connected with the gas deliverying unit 58 of the U-shaped flowing gas chamber 50 that is attached to each combustion apparatus 100 linearly is formed on collection chamber 60, thus combustion apparatus 100 at the length direction of collection chamber 60 with arranged in a straight line.
In addition, be formed on a side of collection chamber 60 for the unit, gas outlet 62 of boiler 200 collected gas supply.Along with the combustion gas of introducing is moved towards boiler 200; And the internal cross-sectional area of collection chamber 60 becomes big along with its trend unit, gas outlet 62 gradually; The combustion gas of in collection chamber 60, introducing from a plurality of combustion apparatus 100 increases; Like this, the combustion gas that gets into collection chamber 60 is via unit, gas outlet 62 entering boilers 200.
Adopt the mode identical, in the wall main body 63 of formation collection chamber 60, water pipe 64 is arranged to zigzag with combustion gas deliverying unit 30.Water gets into the water pipe 64 of collection chamber 60 from water tank 75 through fortune water pipeline 76, and water circulates in the water pipe 64 of collection chamber 60 and becomes steam.Through steamline 71 with vapor collection in steam tympanum 70, the steam collected of steam tympanum 70 offers industrial plants together with the steam that produces in the boiler 200 then.Through this configuration, water circulates in water pipe 64, and the temperature of collection chamber 60 is minimized, thereby has improved the durability of collection chamber 60, and the water steam that circulation time produced in water pipe 64 offers industrial plants, thereby has improved the quantum of output of steam.
In existing heat recovery system, for being equipped with single combustion apparatus, single boiler collects heat, be difficult to obtain a large amount of combustion gas.In order to obtain a large amount of combustion gas, should make the size of the combustion container in the combustion apparatus very big.But the increase of the size of combustion container is subject to the structural stability of combustion apparatus.Therefore, in existing heat recovery system, be difficult to obtain high steam.But as implied above, the present invention has solved the problems referred to above.In addition; With the present invention compared with prior art; For the combustion gas that obtains a large amount of high pressure to produce steam; The heat recovery system of prior art comprises a plurality of combustion apparatus of the boiler that is equipped with separately; And heat recovery system of the present invention will be collected in the collection chamber 60 by the combustion gas that a plurality of combustion apparatus 100 are produced, and gives boiler 200 with the gas supply of collecting then.That is, heat recovery system of the present invention only has a boiler.Therefore, the present invention has the advantage that reduces manufacturing cost and also can supply high steam.
Fig. 9 illustrates the plane according to the heat recovery system of second embodiment of the invention.Below will describe according to the difference between the heat recovery system of the first embodiment of the invention and second embodiment.
In the first embodiment of the present invention, four combustion apparatus 100 are linked to be straight line with respect to collection chamber 60, and are relative in twos but four combustion apparatus 100 are arranged as a side relative with collection chamber 60.Thereby according to present embodiment, a plurality of combustion apparatus 100 are installed as and face with each other, thereby the both sides of collection chamber 60 are introduced in combustion gas.Therefore, advantageously, the weak point of the ratio first embodiment of the invention that the length of the collection chamber 60 of second embodiment of the invention can be done.Because other configurations of second embodiment of the invention are identical with effect and first embodiment of the invention, so omit its detailed description here.
In addition, heat recovery system according to the present invention comprises that air pollution prevents equipment, and after from the high-temperature fuel gas of boiler 200, collecting heat, this equipment will wait to be discharged to outside gas-purification.
To shown in Figure 15, air pollution prevents that equipment from comprising: centrifugal dirt collector 300, half dry type reactor 400, dry type reactor 500 and filter dust collector 600 like Figure 11.
Figure 11 illustrates the schematic block diagram that air pollution according to the present invention prevents equipment, and this air pollution prevents the combustion gas in the equipment clean heat recovery system.The air pollution that Figure 12 illustrates Figure 11 prevents the sketch map of the centrifugal dirt collector in the equipment.The air pollution that Figure 13 illustrates Figure 11 prevents the sketch map of the half dry type reactor in the equipment.The air pollution that Figure 14 illustrates Figure 11 prevents the sketch map of the dry type reactor in the equipment.The air pollution that Figure 15 illustrates Figure 11 prevents the sketch map of the filter dust collector in the equipment.
Through this configuration of centrifugal dirt collector 300, rotate and decline from the combustion gas that boiler 200 gets into through fuel gas inlet 301.Because centrifugal force, the particle that is included in the combustion gas rotates along the inwall that centrifugalizes container 302, and then owing to particle weight, particle is collected the bottom of centrifugation container.As implied above, the combustion gas that tentatively removes behind the particle is sent to chamber 307 through conduit 304, discharges through gas outlet 305 then.
Half dry type reactor 400 plays the effect that removes harmful sour gas in the combustion gas (for example hydrogen chloride (HCl) and sulfur oxide (SOx)), and forms hollow shape.Combustion gas gets into from centrifugal dirt collector 300 through fuel gas inlet 401, and this fuel gas inlet 401 is formed on the upper end of half dry type reactor 400.Be formed on a side on the top of half dry type reactor 400 outer surfaces for the liquid white lime feeding unit 402 of the inside of half dry type reactor 400 supply liquid white lime.In addition; The nozzle 403 that is connected with liquid white lime feeding unit 402 is installed in the upside of the inside of half dry type reactor 400; Gas outlet 405 is formed on a side of half dry type reactor 400 bottoms; Under the situation of the inside of combustion gas being introduced half dry type reactor 400, the combustion gas that has been removed harmful sour gas by liquid white lime is discharged from gas outlet 405.In half dry type reactor 400 lower ends drain valve 404 is set, this drain valve 404 is used to discharge the lime with the combustion gas reaction.
Through the configuration of this half dry type reactor 400, combustion gas and the reaction of liquid white lime in the half dry type reactor 400 have been fed to.Correspondingly, harmful sour gas is removed, and combustion gas is discharged through gas outlet 405 then.In other words, half dry type reactor 400 plays the effect that from combustion gas, removes harmful sour gas through liquid white lime, and reduces the temperature of combustion gas simultaneously.
In addition; Be provided with active carbon feeding unit 504 and quick lime powder feeding unit 505 at central part 503; Active carbon feeding unit 504 is fed to the inside of dry type reactor 500 with active carbon, and quick lime powder feeding unit 505 is fed to the quick lime powder inside of dry type reactor 500.Because the cross-sectional area of central part 503 is less than the cross-sectional area of adjacent portion, so the neighbour portion of the internal pressure of central part 503.Therefore, can be from the inside of active carbon feeding unit 504 and quick lime powder feeding unit 505 central part 503 that active carbon and quick lime powder suction pressure is low.Like this, more easily active carbon and quick lime powder are fed to central part 503.
Adopt this configuration of dry type reactor 500,, from be fed to the inner combustion gas of dry type reactor 500, absorb and remove dioxin through the active carbon of active carbon feeding unit 504 supplies.For the bag filter in the filter dust collector 600 that prevents to describe after a while 604 is blocked by wet steam, absorb and remove wet steam through quick lime powder from 505 supplies of quick lime powder feeding unit, the combustion gas that removes behind the wet steam is discharged through gas outlet 507.
In addition, be installed in the outside of chamber 603 through the compressed air feeding unit 608 of magnetic valve 609 control compressed air supplies, compressed air jet pipe 610 is arranged on the inboard of chamber 603, and compressed air jet pipe 610 is connected to compressed air feeding unit 608.In addition, a plurality of nozzles 611 towards Venturi tube 605 are formed on the compressed air jet pipe 610.
This configuration through filter dust collector 600; Be collected in bag filter through fuel gas inlet 606 residual particles from the combustion gas that dry type reactor 500 gets into; Combustion gas after the filtration is forced to suck by air-introduced machine (introduced draft fan) 700 through gas outlet 607.Then, combustion gas is through chimney 800 dischargings.In addition, the pollutant of in bag filter 604, collecting should remove within a certain period of time.Compressed air is controlled by magnetic valve 609, and is fed to compressed air jet pipe 610 from compressed air feeding unit 608, is supplied to the bag filter 604 of the downside that is positioned at Venturi tube 605 then through nozzle 611.Remove the pollutant of in bag filter 604, collecting, the pollutant that removes from bag filter 604 is discharged to the outside through drain valve 612 then, and drain valve 612 is installed in the bottom of the lower end of filter dust collector 600.
Simultaneously, except the aforementioned arrangements of heat recovery system, co-generation unit according to the present invention also comprises: steam turbine 250, and the power generator 260 that links to each other with this steam turbine 250.Figure 10 illustrates the schematic block diagram according to co-generation unit of the present invention.
With reference to Figure 10, will describe according to co-generation unit of the present invention below.The a part of high steam that in boiler 200, produces generates electricity through steam turbine 250, and high steam becomes low-pressure steam.
Thereby, through this configuration, use a part of high steam to generate electricity through steam turbine 250 according to co-generation unit of the present invention, then high steam is become low-pressure steam.Like this, electricity can be applied to use the factory or the industrial plants of co-generation unit with high pressure and low-pressure steam.
Hereinafter, will the operating process according to the heat recovery system with improved heat recovery rate of the embodiment of the invention of as above structure be described.
At first, through being installed in the transmission screw rod 42 in the fuel supply pipe 41, a certain amount of solid fuel is fed to combustion chamber 11 from the fuel charging means (not shown).Be formed on the radial fuel supply element 42b of the top 42a that gives prominence to the screw shaft 42d that stretches into combustion chamber 11, continue radially a certain amount of fuel to be fed in the combustion chamber 11, fuel rotates with screw shaft 42d and then rises.Through this configuration; Feed unit 40 rises the small and light fuel of particle; Combustion air through by air supply mouth 41c supply makes fuel combustion; And through fuel supply element 42b the massive relatively particle of particle is continued radially to be fed near the place the fuel supply pipe 41 in the combustion chamber 11, thereby prevent that clinker from blocking air and supplying mouth 41c.Therefore; The present invention can solve the existing problem that continues unburnt fuel is stacked into the top of fuel supply pipe; Thereby make fuel with very little area catalytic combustion air, and prevent to stay and the fuel of not discharging fuel supply pipe generates clinker and hinders fuel combustion from fuel supply pipe.
As stated, through preheat burner (not shown) and the preheating of start-up burner (not shown) and light the solid fuel that is fed in the combustion chamber 11, make its burning.Be fed to the solid fuel ignition of the upside of revolving grate 17, because fuel continues supply, As time goes on, fuel moves to the edge of revolving grate 17.Along with solid-fuelled burning, a part of liquefy of fuel, liquid fuel stops and burning in V-arrangement ditch portion, and the cross section of V-arrangement ditch portion is identical with revolving grate 17.Therefore, can address the problem: promptly under the situation that the cross section of revolving grate only is formed slopely along a direction, carrying out the problem that the liquid fuel that produced during the combustion process can flow down.In addition, during revolving grate 17 rotations, the ashes that produce along with the burning of fuel are discharged through the overall ash emission mouth 19 that is positioned at revolving grate 17 edges.
Simultaneously; When in combustion chamber 11, making solid fuel ignition; Cooling water gets into cooling chamber 13 through the cooling water inlet 14a (being formed on the periphery of the inwall 12 of combustion chamber 11) of cooling chamber 13; The cooling water that gets into is through cooling water guide plate 13a rotation and rising; Thereby make inwall 12 coolings, cooling water is discharged through coolant outlet 14b then.Then, via the tube connector (not shown), the cooling water of discharging from cooling chamber 13 gets into the boiler 200, thereby collects heat through heat exchanging process from hot combustion gas.As stated, combustion apparatus according to the present invention is included in the cooling chamber 13 that the periphery of the inwall 12 of combustion chamber 11 forms, thereby prevents because the durability reduction that the excessive temperature of the inwall 12 of combustion chamber 11 rises and causes.In addition; According to burner of the present invention; The inwall 12 of cooling chamber 13 is through heat exchanging process preheating cooling water; And then be introduced in the boiler 200; Thereby from the hot combustion gas that generates through combustion apparatus according to the present invention, collect heat; And thereby the durability that prevents to cause owing to distortion, wearing and tearing or crack (possibly appear at inwall 12 places of the combustion chamber 11 that continues to be exposed under the hot combustion gas) reduces, and avoids unnecessary thermal loss simultaneously, and then improves the thermal efficiency.
In addition, through side burning air inlet chamber 15, upside combustion air supply room 20 and downside gaspipe 43, the combustion air that solid fuel ignition is required is fed to combustion chamber 11 from the outside.At first; Through the combustion air revolution of air supply inlet 16a supply and in side burning air inlet chamber 15 to dirty; The bottom 12a that opens wide through side burning air inlet chamber 15 is supplied to combustion chamber 11; Wherein, air supply inlet 16a with the relevant tangential direction formation in top of the outer wall 16 of cylindrical shape combustion container 10.Thereby, in side burning air inlet chamber 15, combustion air can be provided, combustion air turns round simultaneously, and side burning air inlet chamber 15 is formed on the side of fuel chamber 11 to the surface.Like this, compare with the situation of supplying combustion air along rectilinear direction with respect to fuel, though combustion chamber 11 is very little, combustion air can directly contact with most of fuel, thereby has reduced manufacturing cost, has improved the thermal efficiency.
In addition; Combustion air is fed in the preheating chamber 25 through upside air supply inlet 26a; The combustion air that is fed to preheating chamber 25 is shifted to the top of preheating chamber 25; Air duct 24a through last midfeather 24 is fed to rotary current supply room 23 once more again then; Wherein, upside air supply inlet 26a is formed in the upside combustion air supply room 20 with the tangential direction of the outer wall 26 of cylindrical shape combustion container 10.The combustion air that is fed to rotary current supply room 23 moves to its underpart from the top of rotary current supply room 23; Then in the rotating while; Through the combustion air service duct 22a that forms in the last inwall 22, the side surface on 11 top is fed to the inside of combustion chamber 11 from the combustion chamber.Thereby extraneous air moves to the top of the preheating chamber 25 in the upside combustion air supply room 20, and then moves to the bottom of rotary current supply room 23.Like this, because the displacement of extraneous air is elongated, in rotary current supply room 23, can obtain more effective pre-heat effect, simultaneously, preheating chamber 25 can be carried out rotary current supply room 23 and outside heat insulating function.In addition; The effect that the combustion air of being supplied by side burning air inlet chamber 15 plays is that the solid fuel that being contained on the burning comb 17 is directly burnt; The effect of playing by the combustion air of upside combustion air supply room 20 supply be burning those result from the solid fuel that also do not have completing combustion and the imperfect combustion material of rising, thereby hope to reach solid-fuelled ideal burning.
Below, will method that inject combustion air through bottom combustion air supply pipe 43 be described.Air through the 41a of enlarged-diameter portion at fuel supply pipe 41 forms is supplied mouth 41c; The combustion air of bottom combustion air supply pipe 43 supply that is formed at the outside of fuel supply pipe 41 is fed in the combustion chamber 11, and then is fed to the solid-fuelled bottom in the combustion chamber 11 of packing into.Correspondingly, solid-fuelled outside in the combustion chamber 11 of packing into and solid-fuelled bottom and inside is burning reposefully also, thereby improves the thermal efficiency.
Simultaneously, the elevated temperature heat combustion gas that generates through the solid fuel ignition in the combustion chamber 11 is passed through to get into then in the U-shaped flowing gas chamber 50 in the top entering combustion gas deliverying unit 30 of unlimited combustion chamber 11.
Here, water pipe 34 is built in the inside of the wall main body 31 of the main body that constitutes combustion gas deliverying unit 30.Correspondingly, water circulates in water pipe 34, thereby makes the temperature cooling of wall main body 31.Simultaneously, by hot combustion gas heating, become steam then in the time of the water circulation.Steam is collected in the steam tympanum 70, thereby effectively improves heat recovery rate.
In addition, through the movement-oriented plate 59 of U-shaped, the gas-flow that gets into U-shaped flowing gas chamber 50 becomes U-shaped stream, and limited particle (for example being included in the ashes in the combustion gas) falls through the movement-oriented plate 59 of U-shaped.Therefore, better ashes are removed in the ashes gatherer 56.
In addition, though the most of ashes that produce during the fuel combustion can be discharged through the overall ash emission mouth 19 of combustion chamber 11, undersized ashes residual in the combustion gas can be discharged through the ashes gatherer 56 of U-shaped flowing gas chamber 50.Like this, can reduce the quantity that gets into the pollutant in the boiler 200, for example be included in the ashes in the combustion gas.As stated owing to be provided with U-shaped flowing gas chamber 50 in the present invention, so can with the elevated temperature heat gas supply before the boiler 200, remove the ashes of waiting to get into boiler 200.Like this, can prevent that clinker from getting in the pipe of boiler 200, thereby can realize the long-time running of boiler 200, and be convenient to cleaning, maintenance and management boiler 200.In addition, owing to cooling water circulates in the water pipe 54 of U-shaped flowing gas chamber 50, so can reduce the temperature of the main body 51 of U-shaped flowing gas chamber 50.Simultaneously, by hot combustion gas heating, become steam then in the time of the cooling water circulation.These steam are collected in the steam tympanum 70, thereby improve heat recovery rate.
To pass through the combustion gas of U-shaped flowing gas chamber 50 and all collect in the collection chamber 60, then it will be supplied to boiler 200.According to prior art,, need be provided with a plurality of combustion apparatus of boiler separately in order to obtain a large amount of combustion gas.That is, produce steam according to a plurality of boilers of prior art needs.But, according to the present invention, a place is collected in the combustion gas that a plurality of combustion apparatus 100 generate, promptly collection chamber 60, then it are fed to boiler 200.That is to say that only the single boiler of needs produces steam according to the present invention, thereby has reduced manufacturing cost, and high steam can be provided.
Through the heat exchanging process that water flows in water pipe 201, boiler 200 is collected heat from the hot combustion gas that is got into by collection chamber 60, thereby produces high steam.Then, the combustion gas of discharging from boiler 200 prevents to purify the equipment in above-mentioned air pollution, is discharged in the atmosphere then.
Simultaneously, the high steam that part is produced by boiler 200 is used for the co-generation unit that can generate electricity.Therefore, the electric power of generation and high steam have been supplied to industrial plants.Like this, use co-generation unit to be industrial plants supply electricity and steam, thereby need not use the electric power of any outside, but consume the electric power that generates at co-generation unit self, and can use high steam and low-pressure steam simultaneously in order to manufacture a product.In addition, according to the present invention, steam production and electricity productioin are controlled in the price fluctuation of the energy during according to the operation of industrial plants.Therefore, an advantage of the present invention is exactly, and use heat recovery system and utilize the co-generation unit of this heat recovery system, can be that industrial plants provide maximum production efficiency with the energy cost of minimum.
As stated, though the present invention describes in detail with reference to limited embodiment and accompanying drawing, the invention is not restricted to this.In other words, with reference to the combustion apparatus according to the preferred embodiment of the invention that utilized solid-fuelled case description.But, the instance that combustion apparatus according to the present invention is not limited to use solid fuel, but also can be applied to utilize the instance of gaseous fuel or liquid fuel.Clearly, to those skilled in the art, within the technical spirit identical, multiple modification and change can be arranged with the present invention.Certainly, these are revised with change and belong to the claim of enclosing as follows.
Claims (22)
1. heat recovery system with improved heat recovery rate comprises:
A plurality of combustion apparatus, each in said a plurality of combustion apparatus comprises:
Combustion container is used to receive the combustion air by the outside supply, and makes the fuel combustion that is placed in the said combustion container;
Feed unit is used for said fuel is fed to said combustion container; And
The combustion gas deliverying unit; Be arranged at the top of said combustion container; The bottom of said combustion gas deliverying unit communicates with the top of said combustion container; Thereby discharge high-temperature fuel gas through said combustion gas deliverying unit, said high-temperature fuel gas produces to said combustion container supplied fuel burning through making from said feed unit;
Collection chamber links to each other with said a plurality of combustion apparatus, is used for the high-temperature fuel gas that produces at said a plurality of combustion apparatus is collected a place; And
Boiler is used to receive the high-temperature fuel gas that said collection chamber is collected, and collects heat through heat exchanging process from the combustion gas of being supplied.
2. the heat recovery system with improved heat recovery rate according to claim 1 wherein, is formed with the unit, gas outlet in said collection chamber, said combustion gas gets into said boiler through unit, said gas outlet from said a plurality of combustion apparatus; Along with the combustion gas of introducing towards said gas outlet cell moving; And it is big that the internal cross-sectional area of said collection chamber becomes along with trending towards unit, said gas outlet gradually; The combustion gas of introducing from said a plurality of combustion apparatus increases, thereby makes the said combustion gas that gets into said collection chamber flow out through unit, said gas outlet.
3. the heat recovery system with improved heat recovery rate according to claim 1; Wherein, Said a plurality of combustion apparatus is arranged in facing with each other of said collection chamber on every side; Thereby make said combustion gas get into said collection chamber from the both sides of said collection chamber; Wherein, said combustion gas is fed to said collection chamber from said a plurality of combustion apparatus.
4. the heat recovery system with improved heat recovery rate according to claim 1; Wherein, The wall main body that forms the main body of said collection chamber is provided with water pipe; The steam that water circulation time in being fed to the water pipe of said collection chamber produces is collected in the steam tympanum; Be supplied to industrial plants then, thereby in the durability that improves said collection chamber, improve steam production.
5. the heat recovery system with improved heat recovery rate according to claim 4 also comprises:
U-shaped flowing gas chamber; One end of said U-shaped flowing gas chamber communicates with an end of said combustion gas deliverying unit; The other end of said U-shaped flowing gas chamber communicates with a side of said collection chamber, thereby will collect the said collection chamber from the combustion gas that said combustion gas deliverying unit gets into; Said U-shaped flowing gas chamber comprises:
Water pipe is arranged in zigzag on the wall main body of the main body that forms said U-shaped flowing gas chamber, so that water circulates in said water pipe, so that cool off said wall main body; And
The movement-oriented plate of U-shaped; From the top of said U-shaped flowing gas chamber to extending below; Thereby be easy to discharge the ashes that comprise in the said combustion gas of the inside of passing through said U-shaped flowing gas chamber, flow so that carry out U-shaped through the said combustion gas of said U-shaped flowing gas chamber.
6. the heat recovery system with improved heat recovery rate according to claim 5 also comprises:
The ashes gatherer is positioned at the lower end of said U-shaped flowing gas chamber, to collect the ashes that comprise in the combustion gas through said U-shaped flowing gas chamber.
7. the heat recovery system with improved heat recovery rate according to claim 6 wherein, is formed with rake in the front of the bottom of said U-shaped flowing gas chamber, to be easy to collect ashes.
8. the heat recovery system with improved heat recovery rate according to claim 7; Wherein, On the wall main body of the main body that forms said U-shaped flowing gas chamber, be formed with water pipe; The steam that water circulation time in the water pipe that is fed to said U-shaped flowing gas chamber produces is collected in the steam tympanum; Be supplied to industrial plants then, thereby in the durability that improves said U-shaped flowing gas chamber, improve steam production.
9. the heat recovery system with improved heat recovery rate according to claim 8; Wherein, On the wall main body of the main body that forms said combustion gas deliverying unit, be formed with water pipe; The steam that water circulation time in the water pipe that is fed to said combustion gas deliverying unit produces is collected in the steam tympanum; Be supplied to industrial plants then, thereby in the durability that improves said combustion gas deliverying unit, improve steam production.
10. the heat recovery system with improved heat recovery rate according to claim 9, wherein, the said combustion container of each combustion apparatus comprises:
Throat less chamber by the inner wall surrounding of said combustion container, thereby makes fuel combustion;
Cooling chamber; Comprise midfeather; Have between the outside of the inwall of said midfeather and said combustion container at interval; Downside and upside that cooling water inlet that allows cooling water flow into respectively and flow out and coolant outlet are respectively formed at said midfeather; Said midfeather is formed on the periphery of said combustion chamber; Thereby flow into the water in the space that forms between inwall and the midfeather of said cooling chamber through said cooling water inlet through cooling, make the inwall cooling of said combustion chamber; And
The side burning air inlet chamber; Comprise outer wall; Have between the outside of the midfeather of said outer wall and said cooling chamber at interval; Upside at said outer wall is formed with combustion air supply inlet; The required air that burns is supplied from the outside by said combustion air supply inlet; Said outer wall is formed on the periphery of said cooling chamber; Thereby make and be supplied into by said combustion air after said combustion gas that confession answers is received; Said combustion gas is supplied in the said combustion chamber via the bottom of opening wide of said side burning air inlet chamber, and the wherein said combustion air supply inlet edge tangential direction relevant with said cylindrical outer wall forms.
11. the heat recovery system with improved heat recovery rate according to claim 10; Wherein, The cooling water of discharging from the said coolant outlet of said cooling chamber flows into the said boiler, the heat of the combustion gas that produces from said combustion container so that the cooling water of being discharged is used to collect.
12. the heat recovery system with improved heat recovery rate according to claim 11, wherein,
In said cooling chamber, be provided with spirality cooling water guide plate, thereby make cooling water revolution and the rising that gets into via said cooling water inlet.
13. the heat recovery system with improved heat recovery rate according to claim 12, wherein, the said feed unit that said fuel is fed to said combustion container comprises:
Fuel supply pipe is vertically set on the bottom of said combustion container, and is used for said fuel is directed to said combustion chamber; And
Transmit screw unit, be installed in the said fuel supply pipe, have screw shaft and be formed on the screw rod blade on the said screw shaft, thereby when said transmission screw unit rotates, said fuel is fed in the said combustion chamber;
The top of the screw shaft of said transmission screw unit extends to the outside of said fuel supply pipe, and outstanding stretching in the said combustion chamber;
Wherein, be formed with radial fuel supply element on the top of outstanding said screw shaft, said radial fuel is supplied axial direction vertical be provided with of element with said screw shaft, and outstanding formation; When said radial fuel supply element rotated with said transmission screw unit, said radial fuel supply element will radially be fed in the said combustion chamber through the fuel that said fuel supply pipe rises.
14. the heat recovery system with improved heat recovery rate according to claim 13; Wherein, Fuel height control support is installed in the outstanding end of stretching into the screw shaft top of said combustion chamber; The also outstanding formation of the axial quadrature of said fuel height control support and said screw shaft, thus make that said fuel is not upwards to transmit but outwards release of quilt.
15. the heat recovery system with improved heat recovery rate according to claim 14, wherein, said feed unit is installed in the bottom of said combustion container, and said feed unit also comprises:
Bottom combustion air supply pipe, the diameter of said bottom combustion air supply pipe be greater than the diameter of said fuel supply pipe, and form with the concentric circles form, thereby through the air feeding unit, the supply combustion gas in the bottom of the fuel that is in bottom, said combustion chamber; Wherein, said fuel is through said fuel supply pipe supply.
16. the heat recovery system with improved heat recovery rate according to claim 15 is being given prominence to the upper end of stretching into the said fuel supply pipe the said combustion chamber from said fuel supply pipe, also comprises:
Enlarged-diameter portion, its diameter increases towards the top gradually; And
The inclined-plane guide part is from the end portion downwarping of said enlarged-diameter portion and be formed slopely.
17. the heat recovery system with improved heat recovery rate according to claim 16; Wherein, In that the outstanding upper end that stretches into said combustion chamber of combustion air supply pipe has air supply enlarged-diameter portion from said bottom; The diameter of said air supply enlarged-diameter portion increases towards the top gradually, and this air supply diameter enlarging section is positioned at the downside of the said enlarged-diameter portion of said fuel supply pipe;
Wherein, be formed with a plurality of air supply mouths at the said enlarged-diameter portion place of said fuel supply pipe, thereby make combustion air get into said combustion chamber by the combustion air supply pipe supply of said bottom.
18. the heat recovery system with improved heat recovery rate according to claim 17 also comprises:
Air pollution prevents equipment, is used to purify combustion gas to be discharged, and wherein, said air pollution prevents that equipment from comprising:
Centrifugal dirt collector is used to receive the said combustion gas of discharging from said boiler, makes the combustion gas rotation that received and centrifugal, thereby removes the pollutant in the said combustion gas, discharges the combustion gas after pollutant removed then;
The half dry type reactor comprises: liquid white lime feeding unit, be used to supply liquid white lime, and be positioned at a side on said half dry type reactor top; The fuel gas inlet and the gas outlet that allow combustion gas flow into respectively and flow out are formed on the top and bottom of said half dry type reactor; Wherein, The said combustion gas of discharging from said centrifugal dirt collector gets into through said fuel gas inlet; Thereby make the combustion gas of adding entering by the liquid white lime of liquid white lime feeding unit supply to; Thereby remove the pollutant in the said combustion gas, the combustion gas after through said gas outlet discharge pollutant being removed then;
The dry type reactor comprises: the fuel gas inlet and the gas outlet that allow combustion gas flow into respectively and flow out are formed on the two ends of said dry type reactor; The active carbon feeding unit is used to supply active carbon, is positioned at the center of said dry type reactor; And quick lime powder feeding unit, be used to supply the quick lime powder, be positioned at the center of said dry type reactor; Wherein, add said active carbon and said quick lime powder to get into said combustion gas, thereby remove the pollutant in the said combustion gas, the combustion gas after through said gas outlet discharge pollutant being removed then from said half dry type reactor; And
Filter dust collector comprises a plurality of bag filters that are positioned at wherein, makes the said bag filter of said combustion gas process that gets into from said dry type reactor, thereby removes the pollutant in the said combustion gas.
19. the heat recovery system with improved heat recovery rate according to claim 18, wherein, said centrifugal dirt collector forms hollow tube;
Wherein, the inside of said body is separated into chamber and following chamber through transverse wall;
Wherein, combustion gas gets into through fuel gas inlet, and said fuel gas inlet is formed on a said side of chamber down;
Wherein, be provided with the centrifugation container, said centrifugation container is positioned at the tangential direction of the said inner circumferential surface that links to each other with said fuel gas inlet;
Wherein, on said transverse wall, be formed with conduit, said conduit forms downwards from the inside of said centrifugation container along its length;
Wherein, be formed with gas outlet in a side that is positioned at chamber on said transverse wall top said, combustion gas is flowed out through said gas outlet;
Thus, make the said combustion gas rotation that gets into said fuel gas inlet, collect pollutant with bottom, and then be directed to the said combustion gas in the said conduit through said gas outlet discharge at said centrifugal dirt collector.
20. the heat recovery system with improved heat recovery rate according to claim 19, wherein, said dry type reactor comprises:
Left part forms the said fuel gas inlet that allows combustion gas get at the left end of said left part, and the internal cross-sectional area of said left part is tending towards the right side along with it and diminishes gradually;
Central part has the said active carbon feeding unit of supply active carbon and the said quick lime powder feeding unit of supply quick lime powder; And
Right part, the cross-sectional area of said right part are tending towards the right side along with it and become big gradually, and form at the right-hand member of said right part and to allow the gas outlet of fuel gas exhaust;
Wherein, said left part, said central part and said right part communicate with each other in regular turn.
21. the heat recovery system with improved heat recovery rate according to claim 20, wherein, the inner space of said filter dust collector is separated wall and is separated into chamber and following chamber;
Said a plurality of bag filter is arranged on the lower surface of said partition wall;
The Venturi tube that communicates with the peristome of said a plurality of bag filters is installed in the upper surface of said partition wall;
The said fuel gas inlet that allows combustion gas get into is formed on a said side of chamber down;
The said gas outlet that allows combustion gas discharge is formed on a said side that goes up the chamber;
The outside of chamber is equipped with the compressed air feeding unit through the supply of solenoid control compressed air on said;
The inboard of chamber is provided with the compressed air jet pipe on said, and said compressed air jet pipe is connected to said compressed air feeding unit;
In said compressed air jet pipe, be formed with a plurality of nozzles towards said Venturi tube.
22. a co-generation unit comprises:
According to the described heat recovery system of arbitrary claim in the claim 1 to 21; And
Steam turbine and power generator; To be supplied to said steam turbine through carrying out the steam that heat exchange produces in the boiler of said heat recovery system with combustion gas; Said power generator is used for combining with generation electric power with steam turbine, thereby obtains steam and electric power.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020100007716U KR200464404Y1 (en) | 2010-07-22 | 2010-07-22 | Combustion apparatus with improved heat recovery rate and durability |
| KR20-2010-0007716 | 2010-07-22 | ||
| KR10-2010-0079534 | 2010-08-17 | ||
| KR1020100079534A KR101228345B1 (en) | 2010-08-17 | 2010-08-17 | Combustion apparatus with improved combustion efficiency |
| KR1020100128446A KR101209022B1 (en) | 2010-12-15 | 2010-12-15 | Heat recovery system with improved heat recovery rate and combined heat and power generation system using this |
| KR10-2010-0128446 | 2010-12-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102345850A true CN102345850A (en) | 2012-02-08 |
| CN102345850B CN102345850B (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110009977.6A Active CN102345850B (en) | 2010-07-22 | 2011-01-07 | Thermal recovery system with improved thermal efficiency and thermoelectric combined production system equipped with the thermal recovery system |
| CN 201120014747 Expired - Fee Related CN202253558U (en) | 2010-07-22 | 2011-01-07 | Heat recovery system and cogeneration system utilizing same |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120014747 Expired - Fee Related CN202253558U (en) | 2010-07-22 | 2011-01-07 | Heat recovery system and cogeneration system utilizing same |
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| Country | Link |
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| CN (2) | CN102345850B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103464431A (en) * | 2013-09-04 | 2013-12-25 | 中国大唐集团环境技术有限公司 | Deashing device of smoke SCR urea denitration equipment |
| CN107690556A (en) * | 2015-06-08 | 2018-02-13 | 株式会社Posco | Burner |
| RU2743322C1 (en) * | 2019-10-17 | 2021-02-17 | Актиф Атык Бертараф Ве Энержи Уретим Лимитед Ширкети | Waste disposal system for efficient operation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102345850B (en) * | 2010-07-22 | 2014-02-26 | 创意能源控股有限公司 | Thermal recovery system with improved thermal efficiency and thermoelectric combined production system equipped with the thermal recovery system |
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| US3089467A (en) * | 1959-03-18 | 1963-05-14 | Combustion Eng | Steam generator |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN202253558U (en) | 2012-05-30 |
| CN102345850B (en) | 2014-02-26 |
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