CN1335465A - Energy-saving purifier for burner - Google Patents
Energy-saving purifier for burner Download PDFInfo
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- CN1335465A CN1335465A CN00104491A CN00104491A CN1335465A CN 1335465 A CN1335465 A CN 1335465A CN 00104491 A CN00104491 A CN 00104491A CN 00104491 A CN00104491 A CN 00104491A CN 1335465 A CN1335465 A CN 1335465A
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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
- Y02E20/32—Direct CO2 mitigation
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Abstract
The present invention aims at providing one technological scheme of saving fuel and purifying ecological environment. It is different from the available technology in that the high temperature fume produced during combustion is forced into enclosed circulation and comprehensive separation, collection, treatment and utilization, and this raises greatly the fuel utilization and the heat energy utilization, and reduce the atmosphere pollution caused by harmful gases. In addition, CO2 favorable to agriculture, forestry, etc. may be obtained. The present invention is suitable for use in various furnaces.
Description
The invention belongs to relevant solution fuel savings resource, the technical scheme of purifying ecological environment at combustion furnace.Be applicable to sealing burning and the boiler that can seal burning, domestic briquet stove, brick stove, fuel oil, gas furnace etc.
As everyone knows,, especially after northern China is gone into the winter, each factories and miness enterprises and institutions, constituent parts, also have the cloud-kissing one by one chimney of huge numbers of families, fall over each other to echo ground and tell to azure sky bright and putting black smoke round and round, shrouding sky in the industrial present age.As institute's cloud in eight scapes of Huang Ling: " the curved long bank of morning mist fan of dragon, phoenix mountain range kitchen smoke connects warm hilllock ".So, not only waste fuel source, and polluted environment.
According to the knowledge of the applicant, in this background technology, people for make full combustion of fuel, make full use of heat energy, air conservation, just adopted following three kinds of modes in the boiler technology:
1. forms such as layer combustion, suspension combustion, Boiling Combustion, gasification, and combustion.Fixed grate, double-layer grate, traveling-grate stoker, inclined reciprocating fire grate, horizontal reciprocating furnace grate or the like form and various air inducing wind pushing form have been adopted again.
2. in order to make full use of the heat energy after the burning, around burner hearth, arranged water-cooling wall, thermal current washes away the convection banks that many pipe compositions have been arranged in the area above burner hearth again, also arranged economizer, arranged the smoke pipe and the fire tube of feedwater heating again in the area that flue gas and pyrotechnics are flowed through in the area that the boiler tail high-temperature flue gas is flowed through.
3. in order to prevent after the fuel combustion airborne release pollutant cleaners such as gravity floatable, inertia force formula, centrifugal force type, wet filter formula, electric power formula have been adopted in boiler technology.
These background technologies are write in boiler safety Office of the Ombudsman of Liaoning Province bureau of labour, in " stoker's reader " that China Labor Press published in 1997 argumentation are arranged all.But these technology still exist very big scarce limit, and the present invention compares with above-mentioned technical characterictic and has certain progressive and very big difference is arranged, and the applicant does not find and the same or analogous background technology of present technique as yet.
From primitive society, the human productive life use that just obtains heat energy supply people with combustion fuel, in fact fuel be difficult to completing combustion in stove, a heat part that is discharged has been scattered and disappeared with the form of heat radiation, and another part has been taken away by high-temperature flue gas again.Except that large-sized boiler, other combustion furnace for the utilization rate of fuel only between percent 30 to percent 60.In addition, multiple owing to producing after the fuel combustion to animals and plants and human harmful material, seriously polluted ecological environment from the chimney discharge.
Purpose of the present invention then is to save human limited fuel source and purify human natural environmental stress of depending on for existence in order further to solve.
So: the feature of the present invention's " energy-saving purifier of combustion furnace " its technical scheme by name is to adopt aerostatic press, force the high-temperature flue gas that is produced because of burning in the stove to be introduced into energy-conservation pot, with with thermal energy conduction give in the water in the pot, fully carry out entering again after the heat exchange eliminating smoke and jar separate comprehensively, and, reduce as far as possible and give the airborne release pollutant respectively with isolated various matter utilizations or deal carefully with.Also must consult this specification back (four) joint about the present invention's detailed technical scheme feature: just can fully understand after " the energy-saving purifier operation principle of combustion furnace ", should not state more here.
The present invention compares with background technology has following useful effect:
1. in the background technology, for the layer combustion that full combustion of fuel is taked, if the inhomogeneous inadequate phenomenon of burning that also still has that air mixes with the coal seam; Suspension combustion of being taked and Boiling Combustion must be used fine coal, and if attrition process is inhomogeneous also has burning insufficient, the phenomenon of over-emitting black exhaust.And the mode that the present invention taked no matter block be, dusty fuel all can mix use, and because the present invention forces flue gas to enter closed cycle system, thereby unburned fuel gas can be sent into repeatedly burner hearth, fully burning is till after-flame.In addition, in the operation running that adopts present technique, can also obtain the burning of water-gas.
2. in the background technology in order to make full use of the heat energy that burning back is produced, in the structure of boiler, arranged water-cooling wall, convection bank, economizer and smoke pipe and fire tube etc.Generally speaking be fiery mid-water pipe, the mid-fire tube of water does not always want to make the flue gas that has high temperature to run away in vain.But when gases are heated, they expand rises is the natural law of objective reality.And background technology does not overcome this rule, and final flue gas is still with a large amount of heat energy heavenwards of running quickly.The present invention then be force the flue gas that has high temperature enter in the energy-conservation pot in the sufficiently long pyrotechnics pipe heartily with energy-conservation pot in cold water, carry out heat exchange by tube wall, almost can with heat all in the cold water of conduction in energy-conservation pot.Because energy-conservation pot can be used as the water tank of boiler; Also can be connected together with boiler water tank; Also can be used as water source to boiler fills etc.So, because of the present invention has overcome above-mentioned rule, thereby, heat energy, energy savings can be utilized fully.
3. in the background technology, in order to prevent to give the airborne release pollutant after the boiler combustion, taked multiple cleaner at the fume emission mouth, but these modes can only be removed the block of a part of dust, cinder and so on, and pernicious gas has been discharged in the atmosphere also still.And the present invention is owing to taked to force flue gas all to enter into the smoke elimination jar, not only block has been carried out precipitate and separate, and the gas thing has also been carried out sink-float separated, make the abundant after-flame of harmful fuel gas, other material is utilized measure with collection and treatment respectively, thereby controlled significantly to the airborne release pernicious gas.In addition, can also obtain being used for forest extinguishing; Be used for rain making; Be used to produce urea; Be used for carrying out photosynthesis and improve the carbon dioxide that can discharge oxygen in the booth behind the crop yield again for plant.
The present invention compares with background technology that have more can fuel savings thus, the three big superiority in protection environment and greening mountains and rivers, and to farming, woods, really, the development of animal husbandry also will play certain positive role.
Contrast accompanying drawing below, realize mode of the present invention in conjunction with the drawing declarative description.(is example with the vertical boiler with horizontal water tubes)
(1) the drawing explanation of accompanying drawing
Fig. 1, the main generalized section of looking of combustion furnace and energy-conservation pot: 1. grey pit, 2. pumping board, 3. infundibulate base plate, 4. cinder chamber, 5. combustion furnace air inlet, 6. ash door and grey door closure position, 7. spill fire grate and can twitch fire grate, 8. priming valve, 9. the airspace between fire grate and the furnace wall, 10. eggshell shape burner hearth (bottom is a fuel chambers, and top is the combustion chamber), 11. lower furnace door and stove face plate position, 12. observation panel position, 13. outer furnace wall, inner furnace wall and furnace wall intraformational bed, 14. smoke outlet window, 15. energy-conservation pot exhaust outlet, 16. the mid-game of energy-conservation pot around the pyrotechnics pipe, 17. energy-conservation pot is inner, 18. combustion furnace pyrotechnics tube cavity, 19. Pressure gauge and safety valve, 20 steams or hot water delivery valve, 21. lime-ash screen pack and combustion grate gas port and energy-conservation pot air inlet, 22. threeway pyrotechnics tube cavity, 23. automatic balloon valve (being still unrisen position shown in the figure), 24. the space that flue gas rises, 25. balloon valve spacing collar, 26. floss hole, 27. the drawing practice figure of design eggshell shape burner hearth.
Fig. 2: spiral aerostatic press master looks generalized section: 1. exhaust outlet, 2. the air-flow non-return valve, 3. the outer eaves of blade is inlayed soft sealing strip schematic diagram, the 4. airflow hole on the bearing bracket stand, 5. cylinder wall, 6. impeller shaft, 7. screw blade, 8. air inlet, 9. thrust bearing; Annotate: be the correct direction of rotation of aerostatic press shown in the arrow among the figure.
Fig. 3: jar main generalized section of looking eliminates smoke: 1. air inlet, 2. blowoff valve, 3. water tank with strainer inside, 4. coarse filtration plate, 5. fine filtration plate and screen pack, 6. automatic pressure reducing valve, 7. priming valve and water gauge, 8. knockout box, the fastening gong nail that inverted infundibulate tank lid and water tank with strainer are three, 9. carbonated drink return port, 10. manual pressure-reducing valve handle, 11. inverted infundibulate tank lid, 12. dirt removal door, 13. knockout box inside, 14. safety valve, 15. exhaust outlet, 16. Pressure gauge, 17. automatic and manual pressure-reducing valve exhaust outlet.
Fig. 4: twin gas cigarette valve and operation principle schematic diagram: watt flute profile is the housing section that has the gong line among the figure; Circular is the spheroid with hollow path; Strip be regulating handle.1 to 3 its left side is to overlook; The right side is main looking; The first half is an air valve; Lower Half is a cigarette valve profile.Double-head arrow is represented all open-minded; Single arrow is represented half-open logical; Crooked double-head arrow is represented Close All.
Fig. 41 in as seen: when the gentle cigarette valve chest of handle was parallel, then the cigarette valve was all open-minded, the air valve Close All.Fig. 42 in as seen: when the gentle cigarette valve chest of handle each other 45 when spending, then cigarette valve and air valve are all half-open logical.Fig. 43 in as seen: cigarette valve Close All when the gentle cigarette valve chest of handle is vertical, air valve is all open-minded.4 of Fig. 4 is that the gas cigarette valve master who has handle adjusting angle positioning disk looks outside drawing, and " the opening " on the positioning disk and " pass " are only for the cigarette valve, shape such as bell-mouthed be the air inlet of air valve.Handle one side be the cigarette valve, cigarette valve right side is a cigarette valve air inlet, the left side is the cigarette valve outlet, is the flow direction of flue gas or air shown in the arrow.
Fig. 5: be to use the pipeline series combination together promptly Fig. 1, Fig. 2, Fig. 3, Fig. 4: the installation of " energy-saving purifier of combustion furnace ", operation, operation and operation principle master look generalized section.Be that combustion furnace, top are energy-conservation pots under the figure left side; The upper right side of figure centre is aerostatic press and supporting motor, and the lower left is a gas cigarette valve; Be the water tank with strainer of smoke elimination jar under the figure right side, top is the knockout box of smoke elimination jar.The direction that flue gas recirculation is flowed when being work shown in the arrow among the figure.
(2) architectural feature of each parts
Accurate for the sake of simplicity, the present invention is divided into " pot " and " stove " two parts with common described boiler and describes, and then: all genus pot of the present invention is called that energy-conservation pot is called for short pot sometimes, stove claims combustion furnace to be called for short stove sometimes, and all persons that still claims the boiler are meant the boiler of prior art.Then:
The energy-saving purifier critical piece of combustion furnace is: combustion furnace, energy-conservation pot, aerostatic press, smoke elimination jar and twin gas cigarette valve five big parts are introduced below one by one.
One, combustion furnace (following combustion furnace with vertical shell boiler is an example)
For no matter be the combustion furnace of coming of new or the fire coal that has come into operation, gas fired-boiler as long as just can come into operation through following simple transformation:
1, in the middle of combustion furnace ash pit and cinder chamber, with infundibulate base plate of steel plate welding, the pumping board that can extract insertion out of welding in the middle of base plate is as 2 and 3 of Fig. 1.
2, ash door and grey door closure, lower furnace door and the stove face plate finishing with 6 and 11 places of Fig. 1 coincide, and must not seriously leak gas when closing, and opens an observation panel in the middle of stove face plate, as 12 of Fig. 1.
3, the threeway pyrotechnics pipe that diameter is identical with floss hole is installed between pyrotechnics pipe and floss hole, the opening part of path is that the exhaust outlet of combustion furnace can be blocked greater than the lime-ash screen pack of 3 millimeter solids by adorning one therebetween, as 22 and 21 of Fig. 1.
4, at threeway pyrotechnics pipe and floss hole junction a draught damper is installed, this valve preferably is made into automatic balloon valve when having ready conditions.In other words, when air-flow is up, can rise automatically and open, the refractory metal ball that when air-flow is descending, can lands automatically and close flue, this ball can adopt the very light metal material of proportion, make the sphere of diameter greater than threeway pyrotechnics pipe diameter, in annotate hydrogen or be evacuated, be installed in the bigger spherical shell of diameter, when requiring balloon to rise to the housing middle part, should leave the up space of enough flue gases between balloon and the housing, a balloon valve spacing collar should be welded in the top of ball, as 23 of Fig. 1,24,25, a traditional manual board-turning type air flow valve also can be installed when unconditional.
5, open two mouths at the outer wall of cinder chamber, weld the common steel tube that two cross sections arranged side by side are not less than 0.2 times in combustion furnace floss hole cross section, as the combustion furnace air inlet.As 5 of Fig. 1.
6, because fuel when the stove internal combustion, temperature need reach burning-point in the first stove, it two is to need sufficient air-breathing, it three is to need rational expansion space.In order to satisfy this three conditions, the present invention provides following scheme when making boiler furnace for redesign, it is characterized in that the shape of this burner hearth is identical with the egg shell inner chamber that the microcephaly makes progress, and claims eggshell shape burner hearth here, the specific design method for drafting please refer to 27 of Fig. 1, draws by following order.
1. the diameter that is designed boiler grate is assumed to be 1; 2. on drawing paper, find out A, B, C 3 points, make AB=BC=CA=0.8; 3. being the center of circle with A, is that radius is at standardized semicircle of the first half with 0.39; 4. be the garden heart with B, C respectively, with 1.05 be radius at the standardized camber line of the other side in each center of circle, the top of camber line and the semicircle of being drawn are crossing, the below of camber line is intersecting each other in the D point; 5. respectively on both sides each standardized with semicircle and tangent line segment EF and the GH of arc; 6. find out parallel and equal standardized line segment OK in location of 1 with interior at the bottom of BC camber line with BC; 7. D is dismissed, with standardized of arc cut-off long be 0.4 horizontal line LM, make it parallel with OK, then: eggshell shape chamber design figure promptly plots, as 27 of Fig. 1.
The following part of its OK is the spill fire grate, in order to obtain sufficient combustion air, should leave the airspace of enough spaciousnesses in the surrounding area between fire grate and the furnace wall.Should partly make the small-sized fire grate of twitching that to extract insertion out to LM for the ease of foreign material such as cleaning ashes, as 7,9 of Fig. 1.
In addition, suggestion is made into sandwich with furnace wall, the middle gap that should keep 2 to 5 centimeters according to the size of boiler of interlayer, tamp flame-proof thermal insulation material in the gap,, should notice that thickness of interlayer will suit as 13 of Fig. 1, blocked up, coking easily in the furnace wall, even burn, cross book and then do not reach the purpose of insulation.
Two, energy-conservation pot
But energy-conservation pot mainly is to be made into receiving fluids by steel plate or other material, mainly is the container of water, the pyrotechnics pipe composition that the present invention also is referred to as " pot " and coils in its inside.The pot body should have priming valve and steam or hot water delivery valve, as 8,20 of Fig. 1, the pyrotechnics pipe should coil long enough as best one can in pot, its cross section should be not less than 0.3 times of supporting combustion furnace floss hole cross section, stretch out outside the pot at two of pipe, can be referred to as energy-conservation pot air inlet with the combustion grate gas port is communicated with, can be referred to as energy-conservation pot exhaust outlet with the other end that aerostatic press is communicated with, as 21,15 of Fig. 1, its coiling form can be varied.
Energy-conservation pot is looked its purposes feature and can be made pressure vessel or vessels not under pressure, and then technical parts that other cooperated or specification are thick as: Pressure gauge, safety valve, volume, shape, pot wall book, the blowdown form, and cleaning incrustation scale measure etc. all can determine according to purposes.This is a routine techniques, needn't state here more.
Energy-conservation pot can be made into one with combustion furnace, as Fig. 1, also can make with boiler fills valve polyphone separately or is used.
Three, aerostatic press
Aerostatic press of the present invention is to force gas to enter from the air inlet of self, again various blower fans, air blast, air pump and spiral aerostatic press of discharging from exhaust outlet and so on.
1, blower fan is the ventilation equipment that are used under the mine more, uses as aerostatic press if be used for the present invention, and the throughput that is produced is enough, but the ability all too of Compressed Gas is poor, needs series connection to use.
2, air blast claims Fenghulu-bottle gourd-shaped musical instruments again, normally as life coal stove, boiler, and the combustion-supporting machinery of inflation of smelting stove.The throughput that is produced is less than blower fan, and the ability of Compressed Gas is better than blower fan, but not enough, if as aerostatic press of the present invention, and the use of also should connecting.
3, air pump claims air compressor again, normally as the machinery to tire inflation or spraying use, if use as aerostatic press of the present invention, the ability of its Compressed Gas is enough, and just the throughput deficiency should adopt twin-tub, multi-cylinder or in parallel the use, but because its operating characteristic is that piston is reciprocating in cylinder barrel, then vibratility is strong, and noise is big, and it is not steady to work, be unable to undergo the wearing and tearing of lime-ash etc. again, fault is many.
4, all not really suitable because of above-mentioned aerostatic press, thus the applicant has invented a kind of spiral aerostatic press, what it is characterized in that the interior installation of columnar cylinder is the screw impeller that rotates, the cylinder two ends have air inlet and exhaust outlet equally, as Fig. 2.Introduce design, calculating and the manufacture method of its characteristic below:
Because the blade of this aerostatic press is to be coiled in as the spiral on the impeller shaft, as 7 of Fig. 2, thereby can think that it has only a slice blade, and the distance between described below and the sheet, actual indication be exactly the week and the distance in adjacent another week, hereinafter to be referred as the sheet spacing; Blade and impeller shaft general name screw impeller or impeller, in addition every one week of coiling is called one-level again, how many levels coiling how many all persons just claim altogether, and rank is higher, and the ability of institute's output pressure is higher.And the ability of institute's output pressure also with cylinder inner wall and impeller outer eaves between the seal degree, the degree of wear or the like of power, other parts of rotating speed, engine of fit clearance, aerostatic press relevant.These factors afterwards all will affect determining of progression, and then the definite of progression generally should be not less than 6 grades, and this point mainly should be determined according to the gas pressure intensity of required output.
1. the specification of spiral aerostatic press should be estimated according to following formula according to the gas flow and the rank of required output.
In the formula: R is the radius in the cylinder, and unit is centimetre; Q is the gas flow that should export, and unit is centimetre
3/ second; (this flow can be measured the charge flow rate of concrete combustion furnace or inspection information and obtain) V is the volume of each grade impeller shaft, and 0.09 left and right sides unit of generally getting Q is centimetre
3N is that the revolution unit of impeller is revolutions per second; a
nBe the ratio of sheet spacing in R, generally get about 0.6R; Л is that pi gets 3.1416; R
2Be the cylinder barrel inside radius square, unit is centimetre
2η is the operating efficiency of aerostatic press, because because of the continuous rising with the road internal gas pressure of wandering of when work, and the gap of eaves in spiral and outside cylinder inner wall and the blade, the adverse current loss that is produced and other are generally got about 0.8.
After from following formula, calculating the R value, then the diameter of cylinder barrel is exactly 2R, the diameter of screw impeller is exactly that 2R deducts two times gap (promptly two times 0.2 to 0.5 millimeter), and the sheet spacing is exactly 0.6R, and the effective length of cylinder barrel and screw impeller is exactly that 0.6R multiply by progression (bearing is with interior part).
2. the motor power (output) that spiral aerostatic press should cooperate is according to following formula estimation.
In the formula:
P is required power of electric motor, and unit is a watt;
W is the conversion ratio of kilogram meters/second and watt, answers substitution 9.8;
S deducts the cylinder barrel in impeller shaft cross section with interior sectional area, and unit is centimetre
2
Wander when p is work gas pressure in the road, the voltage endurance capability of the smoke elimination jar that just is used, the hyperbar of answering substitution to occur, unit is a kilogram meters/second;
H is the sheet spacing, and unit is a rice;
N is the revolution of aerostatic press, because multiple-speed motor helps widening the adjusting range of furnace temperature, multiple-speed motor is preferably selected in suggestion for use, answers the substitution maximum number of revolutions during calculating, and unit is revolutions per second;
A is a constant, is the characteristic coefficient of forcing press work done, generally gets 0.33;
η is the operating efficiency of motor, is the ratio of output in input power, generally gets about 0.8;
The design and the manufacturing of spiral aerostatic press should also be noted that following points:
3. the operating efficiency of this aerostatic press, most critical part are exactly the fit clearance of outer eaves of blade and cylinder inner wall.Generally should be between 0.2 to 0.5, the gap little efficient that heals is higher, therefore except that retrofit is wanted in the cooperation that requires cylinder inner wall and impeller, moreover because the thermal coefficient of expansion height of aluminium, then one advises adopting aluminum to make blade exactly, under the effect that has the waste heat flue gas, reduced fit clearance after the expansion just during work, but in case damaged and to change.It two is to tumble in copper to the blade outer rim, and the resistant to elevated temperatures soft sealing strip of rubber or plastics and so on as 3 of Fig. 2, damages the back and only needs to change sealing strip, and shortcoming is the tired lock of technology.
4. because aerostatic press is to work in the higher flue gas environment of temperature, except high temperature also has dust, perishable materials easy to wear such as lime-ash and sulfur dioxide then should be selected the material that is fit to this characteristic for use.Air inlet one end should be selected thrust bearing for use.As 9 of Fig. 2, impeller and should have reliably lubricated and cooling infrastructure to reciprocal motive force when being convenient to overcome work.
5. the air inlet cross section of aerostatic press should be not less than supporting energy-conservation pot exhaust outlet cross section, the exhaust outlet cross section should be not less than supporting combustion furnace air inlet cross section, exhaust outlet must be installed the air-flow non-return valve, as 2 of Fig. 2.
6. the direction of rotation of spiral aerostatic press is at the exhaust outlet direction, and the direction that screws out with spiral is for just changeing.
Other parts and parameter belong to routine techniques, needn't state here more.
Four, smoke elimination jar
The jar that eliminates smoke is the pressure vessel that can hold gas and liquid, it forms (as shown in Figure 3) by water tank with strainer (hereinafter to be referred as water tank) below the inverted infundibulate tank lid (hereinafter to be referred as tank lid) and above vertical knockout box (hereinafter to be referred as gas tank) two large divisions, these two parts can be made into two respectively, also can be produced on together, antirust processing should be done in inside.
Smoke elimination jar and parts must be made according to the regulation of pressure vessel, generally should adopt the steel plate more than 0.3 centimeter to be welded into dome, dome, the vertical type cylinder shape of round bottom; Also available reinforced concrete prefabricated; Also available brick mix structure is built into; Also can adopt various material mixing manufactures; But must make vertical.Also can be located near the boiler; Also can be located at apart from boiler isolated area far away.
Under the situation of conditions permit, the volume of the jar that eliminates smoke is healed greatly better, but must not be too small, and minimum must not be less than the volume of joining boiler.The withstand voltage properties that eliminates smoke jar is healed height better, and height then capacity is big, and is effective, and is low then cost is low, is convenient to enforcement, general withstand voltage scope should 4 kilograms/centimetre
2To 80 kilograms/centimetre
2Between.
Air inlet and blowoff valve are arranged at water tank with strainer bottom, and there is exhaust outlet on the gas tank top, air inlet and exhaust outlet cross section not should less than the cross section of supporting combustion furnace air inlet, to try one's best greatly in blow-off pipe and blowoff valve cross section.The coarse filtration plate that the useful from bottom to top steel plate of water tank makes, the screen pack that fine filtration plate and wire make, coarse filtration twist drill have approximately 5000 every square metre of density, diameter is about 1 centimeter circular hole, be drilled with density on the fine filtration plate and be approximately 20,000 every square metre, diameter is about 0.3 centimeter small sircle hole.So-called " filtration " then is to play buffering and shunting action in order to send the air blast that comes to aerostatic press, and itself and water are fully mixed, so: it is to filter air pocket.When the dirt removal door uses everywhere, should be able to tight-closedly must not leak, the automatic pressure reducing valve of below and manually pressure-reducing valve, a shared air inlet and exhaust outlet, tank lid edge should have the carbonated drink return port, as shown in Figure 3.Priming valve shown in the safety valve on its top and Pressure gauge and Fig. 3 and water gauge and so on and other parts belong to routine techniques, needn't state here more.
Five, twin gas cigarette valve
The ball valve that uses in the similar hot-water heating facility of twin gas cigarette valve, be by the use that is in juxtaposition of two valves, control the spheroid rotation that has hollow path in two ball valve shells by a regulating handle, two spheroid inner gateway directions are orthogonal, the cross section must not less than the air inlet cross section of supporting combustion furnace, wherein the valve of handle one side is controlled the flue gas flow that is entered the boiler air inlet by jar exhaust outlet that eliminates smoke, and is referred to as the cigarette valve.One on valve of opposite side and atmosphere communicate, and the air mass flow that control enters the boiler air inlet is referred to as air valve.Its function is when the cigarette valve is all opened, the air valve Close All; When cigarette valve Close All, air valve is all open-minded; When cigarette valve half led to, air valve was also partly logical; Gas was little when then cigarette was big, and cigarette hour gas is big, and the situation that exhausted nothing is all opened and all closed.And the total amount of opening is identical all the time, and the control angle of regulating handle shows by the handle adjusting angle positioning disk that is equipped with, as shown in Figure 4.
Six, the installation of each parts be connected
The big or small supporting parts that adapt of selecting for use according to boiler capacity and pressure, with the exhaust outlet of combustion furnace and the air inlet of energy-conservation pot, the exhaust outlet of energy-conservation pot and the air inlet of aerostatic press, the air inlet of the exhaust outlet of aerostatic press and the jar that eliminates smoke, the exhaust outlet of jar and the air inlet of cigarette valve eliminate smoke, the exhaust outlet of cigarette valve and the air inlet of combustion furnace with the exhaust outlet of air valve and the air inlet of combustion furnace, have added sealing gasket with the pipeline in cross section of adapting and have coupled together.Should note: the setting height(from bottom) of aerostatic press will surpass jar water tank that eliminates smoke, and immerses cylinder with anti-backflow water, as shown in Figure 5.Its mounting distance each other can far can be near.
(3) operation of combustion furnace energy-saving purifier and operation.
One, operational procedure (burning with bituminous coal is an example)
1, according to conventional other preparation that requires to perform before all operations of boiler, and check aerostatic press and supporting motor and power circuit equipment, whether voltage normal.
2, remove the surplus grey recrement of combustion furnace everywhere, close ash door, insert pumping board, close jar blowoff valve that eliminates smoke, move gas cigarette valve handle the position of pass to, close priming valve after filling up clear water on request for the energy-conservation pot and jar water tank that eliminates smoke.
3, open jar manually pressure-reducing valve that eliminates smoke, start that residual air drains in several minutes roads of will wandering of aerostatic press operation, close pressure-reducing valve again after making the road of wandering be in atmospheric pressure state,, then should open this valve if the combustion furnace floss hole is manual board-turning type air flow valve.
4, igniting routinely can increase things such as the firewood that ignites in case of necessity, allows enough thermal currents wash the automatic balloon valve of floss hole open, throws coal again and ignites.If aerostatic press is dragged by multiple-speed motor, also can the low rate start aerostatic press, close manual board-turning type air flow valve simultaneously.
5, when stove fire burning just often, close lower furnace door, move gas cigarette valve handle the position of to " opening ", feelings and improve the aerostatic press rotating speed, this moment burner hearth in air-flow is wandered the road, pyrotechnics pipe in energy-conservation pot has just produced negative pressure to the pipeline of one section in spiral aerostatic press cylinder, and then the automatic balloon valve of floss hole just falls naturally, has closed floss hole.The high-temperature flue gas that the burner hearth inner combustion chamber is produced because of burning, just by smoke outlet window through threeway pyrotechnics pipe, the lime-ash screen pack enters the pyrotechnics pipe in the energy-conservation pot, again in the aerostatic press air inlet enters the aerostatic press cylinder, again under the impetus of screw blade high speed rotary motion, discharge from the aerostatic press exhaust outlet, enter jar water tank that eliminates smoke, through the coarse filtration plate in the water, after the buffering shunting action of fine filtration plate and screen pack, enter jar gas tank that eliminates smoke by the funnel type tank lid again, under the effect of the continuous operation of aerostatic press,, discharge from the jar exhaust outlet that eliminates smoke again, by the cigarette valve along with the rising of jar internal gas pressure that eliminates smoke, combustion furnace cinder chamber enters the combustion chamber again and participates in burning.Shown in the arrow among Fig. 5.
During combustion just because of also being mixed with air in the flue gas, also store in the smoke elimination jar a large amount of air are arranged, the gas that therefore enters in the combustion chamber still has a large amount of air-breathings, the burning of can't drawing up, under the effect that aerostatic press constantly moves, the flue gas that is mixed with air just enters into the Lu Zhongzuo circulation so repeatedly of wandering.
6, when observation panel finds that stove fire is not really vigorous, anoxic is described in the road of wandering, should move gas cigarette valve handle gradually this moment to the direction of " pass ", so just opened air valve naturally, this moment, air pressure will raise because the part of cigarette valve is closed, and jar interior input that eliminates smoke is greater than output, negative pressure in combustion furnace cinder chamber to one section road of wandering of aerostatic press also can increase, and it is combustion-supporting that air must enter the combustion chamber through air valve.Observe the duration and degree of heating simultaneously, hold gas cigarette valve handle, adjust air valve and cigarette valve to suitable opening angle.At this moment, the flue gas that has that enters the combustion chamber also has air.Then stove fire is still in burning.
(4) the energy-saving purifier operation principle of combustion furnace
One, energy-saving principle
Energy-saving principle well imagines, after the high-temperature flue gas after the burning enters pyrotechnics pipe in the energy-conservation pot, because cold water to be heated such as the outside Quan Shi of pyrotechnics pipe, so high-temperature flue gas must carry out heat exchange with the cold water in the energy-conservation pot by the pyrotechnics tube wall.Because the long enough that the pyrotechnics pipe coils in pot, so this heat exchange is very sufficient, if think that effect does not satisfy, the similar energy-conservation pot of also can externally contacting again is until satisfying.
Two, cleaning principle
Because of the high-temperature flue gas of burning after expanding, under the heat exchange action of energy-conservation pot, reduced temperature significantly, also just dwindled volume significantly.
Because in the material that fuel combustion or imperfect combustion back are emitted, the carbon dust grain that the end burning is arranged that can mix and other foreign material, ash content with water, water-soluble have a carbon dioxide, can generate the nitrogen of nitric acid in addition with hydrate, with the sulfur dioxide of hydrate generation sulfurous acid, with the sulfur trioxide of hydrate generation sulfuric acid.So, under the effect of aerostatic press, when flue gas enters the water tank of the jar that eliminates smoke, in water under the buffering and shunting action of coarse filtration plate, fine filtration plate, screen pack, the above-mentioned substance major part all can be mixed in or temporarily be mixed in the water, and other gaseous matter after filtration, after the shunting, just can rise to jar gas tank that eliminates smoke naturally, proportion putting in order from the summit to the bottom in gas tank according to them should be 1. carbon monoxide, nitrogen.2. nitric oxide.3. oxygen.4. carbon dioxide.5. nitrogen dioxide.6. sulfur dioxide.
As seen come the first half except nitrogen and nitric oxide, be a large amount of carbon monoxide that can burn and a spot of oxygen, and come Lower Half be dissolvable in water the nitrogen dioxide that water generates the sulfur dioxide of sulfurous acid and can become generation nitric acid with hydration except minute quantity, secondly major part is exactly a carbon dioxide, thereby can think, the top major part of smoke elimination jar is nitrogen and the carbon monoxide that can burn, and the bottom major part is the carbon dioxide that cannot burn.
Under aerostatic press was not stopped transport the effect of changeing, flue gas ceaselessly entered in the jar that eliminates smoke, and forms malleation in jar.Float and from the exhaust outlet of tank deck upper end, discharging under the effect of carbon monoxide in malleation on jar top, enter the combustion chamber of combustion furnace through the cigarette valve, generate carbon dioxide after the burning again, enter energy-conservation pot again through combustion grate gas port, lime-ash screen pack in combustion furnace smoke outlet window, the threeway pyrotechnics pipe, enter the jar that eliminates smoke again through aerostatic press, circulation so repeatedly just can make all burnings and generate carbon dioxide, be deposited on jar gas tank bottom of eliminating smoke of all carbon monoxide.
Certainly, carbon dioxide in the smoke elimination jar etc. are under ever-increasing situation, air pressure in the smoke elimination jar is also just constantly raising, (annotate: rated value is exactly the voltage endurance capability according to concrete jar during to rated value when the pressure rises in the jar, the withstand voltage peak that the adjustment automatic pressure reducing valve is opened automatically) automatic pressure reducing valve is just opened automatically, the carbon dioxide that is deposited on the gas tank bottom is just discharged from the pressure-reducing valve exhaust outlet, enters in ready in advance air bag, polybag or the gas bottle.
When finding that stove fire is not really vigorous, illustrate that air pressure is very high in the eliminate smoke jar and the road of wandering, and be full of carbon dioxide, and entered the combustion chamber burning of drawing up.Should open the carbon dioxide of manual pressure-reducing valve in will eliminating smoke jar this moment and discharge from the pressure-reducing valve exhaust outlet and put into air bag, polybag or the gas bottle, reduce to eliminate smoke after the jar internal pressure, close manual pressure-reducing valve again, just can recover normal operation.So return multiple operation.When high degree, stop aerostatic press work, open the floss hole draught damper, the cigarette valve amount of opening is adjusted to minimum, allow nitrogen that is mixed with a small amount of carbon monoxide that enters from air valve etc., through discharging from flue the combustion chamber, reduce the pressure tank that eliminates smoke.Because temperature is very high during high degree, a spot of carbon monoxide may all burn during through the combustion chamber.
As seen in the whole service process, harmful substances such as carbon dust grain and other foreign material, ash content, carbon monoxide, sulfur dioxide just can not be discharged in the atmosphere, and have just produced based on the gaseous matter of carbon dioxide and the sewage of jar water tank that eliminates smoke.Can produce how many carbon dioxide and sewage so on earth, the applicant can't investigate, but energy is very big, but these carbon dioxide and sewage collects, and can obey artificial processing, is not discharged into atmosphere.
Contain the carbon dust grain that can also burn in the sewage of smoke elimination jar, elements such as the aluminium of a spot of nitric acid, sulfurous acid and minute quantity, calcium, iron, emitting can also be through concentrating back arrangement purposes.
This in addition burning form is when operation, because of the steam that the back produced that is heated of the water in jar water tank that eliminates smoke, running into red-hot carbon when entering fuel chambers can decompose immediately, and the water-gas that generation can be burnt then burns again and produces heat energy, can also further improve combustion rate.
This in addition burning form is in when operation, can be when air valve be opened in the air with the irrelevant nitrogen of burning, and also entering the circulation road of wandering increases the smoke elimination pressure tank, is unfavorable for the operation of system, and this point is a weak point of the present invention, at present following hypothesis can only be arranged:
Connect oxygen cylinder if give the air inlet of air valve, nitrogen just can not sneaked into, whole service will be a very desirable effect so, and what bring is insoluble economic problems, its formula is: (coal expense+electricity charge+oxygen expense=heat energy utilization expense+carbon dioxide expense+environment protection significance expense), it seems, that this imagination can only wait this equation back and could implement during greater than the front.
(5) the energy-saving purifier scrubbing and the cleaning method of combustion furnace
Though this energy-saving purifier has been protected environmental sanitation, seriously polluted oneself.The time wandering because of work has swiftly flowing gas in all pipelines in the road, and the deposition of dirt can be very not serious, and polluting the most serious is exactly the smoke elimination jar.When remove eliminating smoke jar, can open the blowoff valve of jar water tank that eliminates smoke earlier, treat that sewage is discharged automatically after, open the dirt removal door of tank skin and tank lid again, manually advance interior removing.And can connect the cooperation of high pressure running water at the priming valve door of the jar that eliminates smoke and manually clean water tank and coarse filtration plate, fine filtration plate, screen pack, also can when blowing out, open the cigarette valve and close gas check valve, start the aerostatic press high-speed cruising, utilize swiftly flowing gas, the ducted deposit of scavenge system, the way of taking to dismantle of household small-size is cleaned.
Claims (6)
1, the energy-saving purifier of a cover combustion furnace is characterized in that combustion furnace, energy-conservation pot, aerostatic press, smoke elimination jar, gas cigarette valve, utilizes pipeline to be concatenated into the closure that circulates for the flue gas recirculation road of wandering.
2, the energy-conservation pot described in the claim 1 is made up of container and inner pipeline, it is characterized in that utilizing aerostatic press to force in the stove flue gas because of fuel combustion produced to pass through pipeline, with heat energy conduct to the material in the container through tube wall.
3, the smoke elimination jar described in the claim 1 belongs to pressure vessel, it is characterized in that being used to holding with separate aerostatic press fill into because of flue gas that fuel combustion produced.
4, in the claim 1,2,3, a kind of spiral aerostatic press in the common described same aerostatic press, what it is characterized in that the interior installation of columnar cylinder is the screw impeller that rotates.
5, the gas cigarette valve described in the claim 1 is made of side by side two ball valves of control flue gas flow and air mass flow, it is characterized in that by the mutually perpendicular hollow ball of a handle drives two ball valve inner gateways direction.
6, a kind of eggshell shape burner hearth in the burner hearth of combustion furnace described in the claim 1 is characterized in that the egg shell inner chamber that form and microcephaly make progress is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001044915A CN1185441C (en) | 2000-07-22 | 2000-07-22 | Energy-saving purifier for burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001044915A CN1185441C (en) | 2000-07-22 | 2000-07-22 | Energy-saving purifier for burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1335465A true CN1335465A (en) | 2002-02-13 |
| CN1185441C CN1185441C (en) | 2005-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001044915A Expired - Fee Related CN1185441C (en) | 2000-07-22 | 2000-07-22 | Energy-saving purifier for burner |
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| Country | Link |
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| CN (1) | CN1185441C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313764C (en) * | 2002-11-28 | 2007-05-02 | 吴强 | Inner heat pipe coagulating type gas heating device |
| CN100400979C (en) * | 2002-12-03 | 2008-07-09 | 吴强 | Inner heat pipe coagulating type gas hot-water, heating boiler |
| CN100400976C (en) * | 2002-12-03 | 2008-07-09 | 吴强 | Inner heat pipe coagulating type gas straight flow hot-water, heating boiler |
| CN102538490A (en) * | 2012-01-20 | 2012-07-04 | 邹洪军 | Smoke exhaust backflash energy-saving device and method |
| US9897599B2 (en) | 2014-08-05 | 2018-02-20 | Toshiba Medical Systems Corporation | Specimen measurement apparatus and specimen measurement method |
-
2000
- 2000-07-22 CN CNB001044915A patent/CN1185441C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313764C (en) * | 2002-11-28 | 2007-05-02 | 吴强 | Inner heat pipe coagulating type gas heating device |
| CN100400979C (en) * | 2002-12-03 | 2008-07-09 | 吴强 | Inner heat pipe coagulating type gas hot-water, heating boiler |
| CN100400976C (en) * | 2002-12-03 | 2008-07-09 | 吴强 | Inner heat pipe coagulating type gas straight flow hot-water, heating boiler |
| CN102538490A (en) * | 2012-01-20 | 2012-07-04 | 邹洪军 | Smoke exhaust backflash energy-saving device and method |
| CN102538490B (en) * | 2012-01-20 | 2013-11-06 | 邹洪军 | Smoke exhaust backflash energy-saving device and method |
| US9897599B2 (en) | 2014-08-05 | 2018-02-20 | Toshiba Medical Systems Corporation | Specimen measurement apparatus and specimen measurement method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1185441C (en) | 2005-01-19 |
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