CN105371483B - Unfired tube is without brick atmospheric pressure water heating coal boiler - Google Patents
Unfired tube is without brick atmospheric pressure water heating coal boiler Download PDFInfo
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- CN105371483B CN105371483B CN201510844907.0A CN201510844907A CN105371483B CN 105371483 B CN105371483 B CN 105371483B CN 201510844907 A CN201510844907 A CN 201510844907A CN 105371483 B CN105371483 B CN 105371483B
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- 239000003245 coal Substances 0.000 title claims abstract description 124
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 238000010438 heat treatment Methods 0.000 title claims abstract description 50
- 239000011449 brick Substances 0.000 title claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 82
- 239000011229 interlayer Substances 0.000 claims abstract description 31
- 239000010410 layer Substances 0.000 claims abstract description 25
- 239000008400 supply water Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 12
- 210000003195 fascia Anatomy 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000005855 radiation Effects 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 claims description 22
- 238000009413 insulation Methods 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 12
- 239000000779 smoke Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 5
- 230000000452 restraining effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 241000252254 Catostomidae Species 0.000 claims description 3
- 239000003350 kerosene Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000002253 acid Substances 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 230000009172 bursting Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000010010 raising Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The unfired tube that the present patent application provides is separated to form air compartment without brick atmospheric pressure water heating coal boiler, boiler body bottom air compartment space by wind dividing plate;Independent combustion apparatus is made up of longitudinal plate rail of multiple crossbeam holdings with type coal holding raft;It is the tube bank case of arrangement horizontal water tube above top of combustion chamber water interlayer, restrains and be provided with supply water injector device and even sucking-off water installations in water interlayer on case;Combustion chamber and tube bank case heating surface and all around between steel plate Side fascia etc., are all interconnected water layer;There is the radiation closing such as heat shield and cover of slagging tap by lock gate hatch, the rear wall of circulating water before combustion chamber;Quick-action furnace air compartment fore side has board plug type air register, stepless to control moulded coal clean combustion speed in burner hearth.The technical program thermal efficiency may be up to 84.9%, and energy-conservation, two big technical performance of emission reduction all reach and be up to more than 10 years better than national current standard, main frame service life, run fault-free.
Description
Technical field
The present application relates to be molded coal constant-pressure boiler.
Background technology
China, be producing coal and with coal big country in the world, due to coal facies to electricity, gas, oily energy several times it is cheap, be middle-size and small-size
Normal-pressure fire coal environment-protection boiler produces and the most country of usage amount.To promote China's energy to be developed in harmony with environmental protection, national environmental protection
Hereafter popularization and application meet the molded coal boiler of national energy-saving emission reduction requirement before more than ten years for general bureau.Operative practice proves, upper combustion
Formula technique for smoke makes molded coal boiler have extraordinary environmental-protecting performance, and molded coal constant-pressure boiler is greatly to 10.5MW.
But the operative practice of more than ten years, existing molded coal boiler expose many technical deficiencies：Due to unreasonable products structure,
Cause that itself multinomial heat loss is very big, BTHE is low, energy-conservation is not remote up to standard；Because flue gas flow and heating surface arrangement are unreasonable etc.
Many reasons, cause acid corrosion serious, the service life of most products only has 5~6 years, and some uses 4 years are i.e. because acid etching is permeable
And scrap;Some in a heating period because of acid etching etc. therefore leak and blowing out is rushed to repair twice;Unreasonable structure, cause heat
Work technical performance is low, and actual thermal power is well below rated value, it is impossible to meets actual heating needs, causes indoor heating temperature low
In standard min,AlsoCause boiler operatiopn unreliable, cause that the quantities of after-sales service is very big, maintenance cost is very high, whenever heating
Before, many times, manpower and financial resources to field maintenance will be put into.Also quite a lot pendulum coals that must open the door, cause have because
Moment, occasionally the jet out flames accident of burn fireman's face of raw malleation occurred in burner hearth.
In existing molded coal boiler, body of heater box-shaped, pot water flow velocity is very low, even local stagnation, is both unfavorable for heat transfer,
Cause that part " subcooled boiling " must be produced in operation, the body of heater temperature difference is very big and produces powerful bursting stress superposition, leads to flue
Ftracture especially short-lived disastrous effect that is permeable and scrapping, suffers heavy losses, can not estimate, and causes box-shaped molded coal boiler praise or blame to break one's promise negative
Face rings to be remained so far.
By taking the CDZH type normal pressure water-fire tube coal burning boilers of instructions for the use of an article sold drum longitudinal Industrial Boiler profile as an example, its combustion apparatus
Longitudinal plate rail be the water pipe structure connected with pot water, exist by dirt corrosion and the blowing out accident potential of leak.Type coal holding raft
Unreasonable structure so that the moulded coal fragmentation that contacts and there is small coal to drain to air compartment, especially cast iron type coal holding raft tensile strength
Only it is 1/3rd of its compression strength, along with stress concentration caused by unreasonable structure, causes in the frangible breakdown of primary zone section
It is bad, the accident that moulded coal leaks down in heaps often occurs, and heat loss of imperfect solid combustion is added at least more than 3%, one
As in a heating period, existing cast iron type coal holding raft damage scrap up to as many as four one-tenth;Using the fire tube conduct pair being longitudinally arranged
Flow heating surface, can not deashing at any time, all increasing the several of itself for the have to unreasonable structure of overstriking latus rectum etc. of anti-clogging
Heat loss, it is resolved that its BTHE does not reach nominal 78% on its drawing, and the national energy-saving far below molded coal boiler refers to
Mark, and because of acid corrosion etc. therefore make main frame service life short.
From the molded coal boiler of the CDZL types of the traveling-grate stoker combustion apparatus of sizing, the complete chain fire-gate price of outsourcing is held high
It is expensive, cause the cost of molded coal boiler double, the pernicious blowing out accident potential for blowing chain also be present.
In addition, the tube bank case of vertical water pipe, deashing is inconvenient, and dust stratification is removed, is unfavorable for heating surface heat conduction and drops not in time
The low boiler operatiopn thermal efficiency.
The content of the invention
The goal of the invention of the present patent application is that providing one kind uses Natural Ventilation Technology In One Green specification, two big technology of energy-saving and emission-reduction
Excellent performance, the thermal efficiency is up to 84.9% ＞ 78%, and guarantee is safe for operation, reliable, and the unfired tube of main frame service life length is without brick normal
Press hot water coal boiler.
The unfired tube that present patent application provides is without brick atmospheric pressure water heating coal boiler technical scheme, in its major technique
Rong Shi：For a kind of unfired tube without brick atmospheric pressure water heating coal boiler, boiler body outer surface is provided with heat-insulation layer, and body bottom portion air compartment is empty
In, by crossbeam, longitudinal plate rail of crossbeam holding and in the type coal holding raft that longitudinal plate rail moves above, form independent burning and set
Standby, longitudinal plate rail is mutually connected with to coal platform, and longitudinal plate rail superjacent air space is combustion chamber, combustion chamber by combustion chamber top plate, all around
The heat-insulation layer of radiation heating-surface and top plate and all around heating surface is formed, and the top of top of combustion chamber water interlayer is tube bank case, is burnt
Room and to restrain the heating surface of case and be all around interconnected water interlayer between Side fascia, combustion chamber coal feed point is provided with lock gate hatch,
Wall slag notch is provided with slag tap cover and water seal cylinder afterwards, and wall is provided with out smoke box after restraining case；Top of combustion chamber water interlayer front end be provided with
Tube bank case fires the aditus laryngis that fiery stream communicates, and restrains in case exhaust gases passes and is disposed with horizontal water tube convection heating surface, restrains water interlayer on case
In be provided with supply water injector device and even sucking-off water installations；Type coal holding raft is not less than 17mm, moulded coal support with moulded coal surrounding contact width
Gap between row and combustion chamber both sides control rail is the 3%~4.2% of moulded coal support arrangement length, and row are long then double using each column more than 0.9m
And type coal holding raft bearing capacity is not less than 23 times to kerosene cylinder startup thrust；In air compartment space, by away from preceding Side fascia 0.8m
~1.38m wind dividing plate is separated to form air compartment, and all around inwall is provided with heat-insulation layer in air compartment space, and the operation side wall of air compartment is provided with plate
Formula air register, the area of section of air intake altogether of this air register is 0.07m2~0.11m2/0.7MW；Combustion chamber longitudinal length and moulded coal
The ratio between support arrangement length is 5.67~8.98：1, maximum coal containing quantity >=2.3t/0.7MW in combustion chamber, moulded coal coal seam maximum height≤
720mm, the pyrotechnics flow cross-section areas in coal seam during maximum height are 0.22m2~0.37m2/0.7MW.Wherein, described row length
For the fire grate width of combustion apparatus, described bearing capacity refers to allowable bear and bearing capacity.
In above-mentioned overall technical architecture, combustion chamber top plate and left and right sides heated sheet, tube bank case is upper and lower and both sides are heated
Plate is equipped with expansion bends, and the spacing of two adjacent expansion bends is no more than 2.9m, for produced by dissolving and being expanded with heat and contract with cold in boiler operatiopn
Bursting stress, so that it is guaranteed that boiler main frame is safe for operation, reliable;Expansion bends are using wall thickness and heated flue flat board uniform thickness
Seamless steel pipe is formed with heated flue steel plate with cutting off seamless steel pipe redundance after two-sided fillet water shutoff weld seam solid welding, is ensured strong
Degree is enough, and is simple to manufacture.
In above-mentioned overall technical architecture, the even hot water fairlead for inhaling device of described water outlet and tube bank case are isometric, heat
Some even suckers are evenly equipped with above water fairlead；Described supply water injector device includes backwater supervisor, is responsible for what is connected with backwater
The supply water injector nozzle and decline groove that some return branch are formed, return branch leads to two along tube bank box top water interlayer vertical
Wing furnace wall water interlayer, supply water injector nozzle are fixed on the furnace wall water interlayer Side fascia of both sides with declining groove notch centering, decline groove,
And there is water layer to separate heating surface.
In above-mentioned overall technical architecture, described lock gate hatch, provided with the forced circulation water cooling system connected with pot water
Unite cooling sandwith layer, it is ensured that lock gate hatch burnt it is indeformable, do not leak out, close it is reliable, do not fail, guarantee boiler operatiopn stable conditions,
Well, also prevent to steam in lock gate hatch, it is ensured that safety.
Unfired tube disclosed in the present patent application is without brick atmospheric pressure water heating coal boiler technical scheme, its combustion apparatus, burning
The boiler overall structure that room, radiation heating-surface, convection heating surface and flame flow comprehensive and reasonable are arranged and established, ensure that moulded coal
High temperature, abundant oxygen supply and the sufficiently long burning time that completely burned must have, acid corrosion, and supply water injector dress are thoroughly eradicated
Put makes a pot raising for velocity of water circulation several times with the combined-circulation technology of even sucking-off water installations, is advantageous to heat transfer, does not produce office
Portion's " subcooled boiling ", ensure greatly to reduce the body of heater temperature difference without slag dirt deposition dead angle in body of heater and break as caused by the temperature difference
Bad stress, its thermal property is excellent, realizes energy-conservation purpose, and the boiler body surface of the technical program steel plate folder water furnace wall can use
Polystyrene board heat-insulatation, so as to reduce heat loss comprehensively, ensure that the thermal efficiency reaches 84.9%>78%, ensure that boiler operatiopn is safe and reliable, it is main
Machine failure-free operation more than 10 years;Stoker's safe operation is again convenient and saves worry, be laborsaving.Coal platform, rear portion smoke are given in body of heater front portion
Case and cover is slagged tap together with boiler body solid welding, combustion apparatus is independent, is Quick setting mould coal boiler, compared to showing for brickwork
There is technology, reduction Over-size transport amount at double, and stoker is easy to operate, saves worry, be laborsaving.
Brief description of the drawings
Fig. 1 is the three-dimensional total figure of patent application.
Fig. 2 display combustion chamber, restrains case and supply water injector device and the even knot for suctioning out water installations to remove right side Side fascia
Composition.
Fig. 3 is removes external wall panel structure, shows combustion chamber and tube bank case heating surface lining and supply water injector device and even
Suction out the tomograph of water installations.
Fig. 4 is Fig. 2 transverse direction sectional structure charts.
Fig. 5 is to give coaly state graphics to the moulded coal of coal platform.
Fig. 6 is supply water injector structure drawing of device.
Fig. 7 is even sucking-off water installations structure chart.
Embodiment
Unfired tube disclosed in the present patent application is without brick atmospheric pressure water heating coal boiler, the air compartment space of boiler body bottom
It is interior, by crossbeam 1, the holding longitudinal direction plate rail 2 of crossbeam 1 and the type coal holding raft 3 moved above in longitudinal plate rail 2, collectively constitute it is independent,
Full steel structure combustion apparatus.Longitudinal superjacent air space of plate rail 2 is combustion chamber 6, and combustion chamber 6 radiates heated by combustion chamber top plate, all around
Face and heat-insulation layer thereon are formed.The top of top of combustion chamber water interlayer 13 is tube bank case 7, and the front portion of top of combustion chamber water interlayer 13 is set
Have and fire the aditus laryngis 5 that fiery stream communicates, combustion chamber 6 and the tube bank heating surface of case 7 with tube bank case 7 and between Side fascia be all around interconnected
Water interlayer.Horizontal water tube is disposed with the tube bank exhaust gases passes of case 7, forms convection heating surface, horizontal water tube both ends and both sides water interlayer
Communicate, fork arrangement is placed in the exhaust gases passes of tube bank case 7, and is 4.8 °~8.8 ° with horizontal sextant angle, beneficial to pot water circulation, is improved
Pyroconductivity, boiler body outer surface are provided with polystyrene board heat-insulatation layer.The front wall coal feed point of combustion chamber 6 is fixedly welded on to coal platform 40
Place, coal feed point are provided with lock gate hatch 36, and this lock gate hatch 36 is provided with the cooling folder of the forced circulation water cooling system connected with pot water
Layer, the water inlet of lock gate hatch 36 come from the fairlead on backwater base 106, and fairlead is provided with fast valve；The outlet pipe of lock gate hatch 36 leads to
Enter to restrain box top water interlayer 18, fast valve also is provided with pipeline, to avoid combustion chamber high temperature from deforming lock gate hatch 36, ensure burning
Room 6 is not leaked out, and the dynamic operation of door is not failed.In the state of lock gate hatch 36 is closed tight, fireman can unhurriedly press code requirement
Moulded coal is put on type coal holding raft 3, lock gate hatch 36 is opened, promoted by pushing away kerosene cylinder 4 to coal, turns off the time of flashboard 36 20
Within second, compared to existing door structure, more times shorten the time that coal feed point is open, makes cold wind enter combustion chamber 6, burning
Stable conditions, it is substantially unaffected, while has prevented the accident potential that fireman is burnt, it is ensured that the person operation peace of fireman
Entirely, there is gap between moulded coal, fully supplied oxygen beneficial to Combustion of Mould Coal.Wall slag notch is externally provided with slag tap cover 24 and water seal cylinder 27 afterwards, goes out
Cinder notch is closed by the radiation heat shield 21 for being articulated with rear wall plate, the radiant heat in block resistance combustion chamber 6, beneficial in holding combustion chamber 6
High temperature, in being open in a flash for deslagging, i.e. deadweight vertical blocks radiant heat after the slag that inclines.Tube bank case 7 rear end sets out smoke box 28,
It is connected with smoke drag reduction elbow 29.The fore side of tube bank case 7 has the shoot door for closing of conducting oneself with dignity with vertical guide oblique angle in 8 °~12 °
32, for easily removing the dust stratification in tube bank case 7 at any time, keep the boiler operatiopn thermal efficiency not reduce, save coal.
Crossbeam 1, longitudinal plate rail 2 and the type coal holding raft 3 of combustion apparatus are from the good common low carbon structure steel making of plasticity.
By taking 1.4MW standard briquet normal-pressure boilers as an example, the long 0.9m that is more than is arranged using the double long 1200mm of row simultaneously of each column, every piece of type of orlop
The contact width of coal bottom surface surrounding and type coal holding raft 3 is not less than 17mm, total between type coal holding raft 3 and combustion chamber both sides control rail 12
Gap is long 3%~4.2% of moulded coal support arrangement, specifically, each moulded coal support re-scheduling amount is 11Kg≤14Kg, only prior art
The half of cast iron type coal holding raft weight.Two supports are arranged and are a row, and the bearing capacity under its normal temperature is 80,000Kg, is to push away coal
Oil cylinder 4 starts 34 times of thrust 2,340Kg>23 times, with ensure its heated up in stove after remitted its fury, especially plus unbalance loading
It under extreme operating condition, can ensure its enough bearing strength, not damage ring, combustion apparatus operation fault-free, do not leak coal.Described holds
Loading capability refers to allowable bear and bearing capacity.This formed coal stove row is in light weight, and manufacturing cost reduces at double.
It is 5.67~8.98 that the length of combustion chamber 6 arranges the ratio between long with moulded coal support：1, the maximum coal containing quantity of combustion chamber 6 >=
2.3t/0.7MW, the maximum height≤720mm in moulded coal coal seam, the pyrotechnics actual internal area in stove during the maximum height of coal seam are
0.22~0.37m2/0.7MW.Still by taking 1.4MW standard briquet normal-pressure boilers as an example, combustion chamber 6 is indulged Gou length and arranged with moulded coal support
The ratio between long is 5.67：1, ensure that each column moulded coal average residence time in combustion chamber is up to 35 hours>23 hours;Maximum coal containing quantity
For 5.4t >=4.6t/1.4MW, the maximum height in moulded coal coal seam is 640mm<720mm, when coal seam maximum height is 640mm in stove
Pyrotechnics actual internal area be 0.45m2/ 1.4MW, ensure that boiler thermal technology's technical performance is excellent, contribute enough.Combustion chamber 6 is all around
Radiation heating-surface is provided with fire resisting profit combustion heat-insulation layer 31, and the top board surface of combustion chamber 6 is fixed with fire resisting profit combustion heat-insulation layer through grasping nail
30, fire resisting profit combustion heat-insulation layer 30 is the thin rear end progressive additive fire resisting profit combustion heat-insulation layer in front end, suitably reduces fractional cold, keeps
Combustion chamber high temperature, be advantageous to moulded coal completely burned.
Generally, the cinder of combustion chamber is pushed out, hand, which is touched, not bery to scald, and can take out type coal holding raft 3 out of slag tap cover 24 with hand,
Prove that heat loss of imperfect solid combustion and heat loss due to sensible heat in slag be not exceeded, combustion chamber can keep combustion high temperature, have and fill
Foot oxygen supply etc. is beneficial to the good condition of moulded coal completely burned, ensures that gas incomplete combustion loss is not also exceeded.
Air compartment 100 is separated to form by the wind dividing plate 23 away from 0.8~1.38m of preceding Side fascia inner surface, and air compartment 100 operates
Framed side wallboard is provided with board plug type air register 22, realizes that oxygen supply is quantity stepless regulated, controls the burning velocity of moulded coal clean combustion, reach
Stepless regulated boiler output, the purpose that the heating up to standard of indoor 24 hours round the clock constant temperature saves again is realized, this air register 22 always enters
Wind sectional area is 0.07~0.11m2/0.7MW.The setting of wind dividing plate 23 makes burning air feed, oxygen supply not walk the short circuit of aditus laryngis 5 directly,
The curtain wall penel inwall of air compartment 100 4 is provided with fire resisting profit combustion heat-insulation layer, and its thickness is 80~100mm, to reduce heat loss, is advantageous to protect
Combustion chamber high temperature is held, beneficial to moulded coal completely burned.The thermal-flame stream of Combustion of Mould Coal enters tube bank case 7, transversal flow by aditus laryngis 5
Horizontal water tube, the horizontal water tube that fork arrangement is put make flame flow mazeflo, extend heat exchange process, and control exhaust gas temperature is slightly below stagnation temperature
Degree, heat loss due to exhaust gas is reduced, be 6.34% or so, avoid restraining box back generation acid corrosion again.
The top plate of combustion chamber 6 and left and right sides heated sheet, the tube bank upper and lower plates of case 7 and both sides tube sheet heated sheet are equipped with expansion bends
37.Described expansion bends 37 use the seamless steel pipe of wall thickness and heated flue flat board uniform thickness with heated flue steel plate with two-sided fillet
Cut off seamless steel pipe redundance after water shutoff weld seam solid welding to form, manufacturing process is structural good;There is no the techniques such as press device
Equipment small factory can it is high-quality by construction drawing, be efficiently made.The spacing of adjacent twice expansion bends is no more than 2.9m,
So that it is guaranteed that boiler main frame is safe for operation, reliable.
Supply water injector device and even sucking-off water installations, the effectively setting of stream oriented device, contracting are provided with tube bank case in water interlayer 18
Port body temperature is poor, makes the more times of raisings of pot water circulation multiplying power and flow velocity, eliminates body of heater slag dirt deposition dead angle, guarantee is safe for operation can
Lean on, be advantageous to heat transfer, heat exchange efficiency greatly improves.As shown in figure 3, supply water injector device includes returning along body of heater Longitudinal extending
Water supervisor 16, lead to both sides furnace wall along the tube bank vertical of box top water interlayer 18 with some return branch 17 that backwater supervisor 16 connects
Water interlayer, supply water injector nozzle 34 are fixed on the furnace wall water interlayer Side fascia of both sides with declining the notch centering of groove 35, decline groove 35,
And there is water layer to separate heating surface.Boiler blow-down water is responsible for 16 lease making return branch 17 by backwater, by supply water injector nozzle 34 with about 2
The flow velocity of meter per second is sprayed, and volume inhales hot water composition fluid-mixing in pot, and the stove that pot bottom layer and water layer separate is brought into along groove 35 is declined
Courage is heated space of planes.Be connected the lateral jet pipe 10 being connected with backwater supervisor 16, and its horizontal ejiction opening 11 is arranged at top of combustion chamber
The side of water interlayer 13, the injection flow velocity of its horizontal ejiction opening 11 is the 2m/ seconds, is coordinated with supply water injector device, and lateral jet pipe 10 pushes away
The water flowing of dynamic top of combustion chamber water interlayer 13, increases the flowing velocity that the water interlayer participates in pot water circulation, is advantageous to combustion chamber
The heat transfer of top plate hyperthermia radiation heating surface and tube bank case lower plate heating surface, while improving the thermal efficiency, reduce the top plate of combustion chamber 6
With the temperature of front end water shutoff plate, ensure not by burning bulge, crumple, guarantee is not ftractureed.The even hot water for inhaling device of described water outlet
Case 7 is isometric is longitudinally arranged with tube bank for fairlead 19, and the top of hot water fairlead 19 is uniformly provided with some even suckers 109, even sucker 109
Suction flow velocity is 0.5 meter per second, water interlayer body of heater top layer, that is, the hot water for restraining the top water interlayer 18 of case 7 passes through hot water fairlead 19
On arrangement even sucker 109 concentrate be delivered to outdoor heating networks system.
Supply water injector device and even both the devices of inhaling of water outlet act synergistically, and not only increase circular flow, improve to several times
The flow velocity of " water-cooling wall " reclaimed water, while avoiding producing the destruction of " subcooled boiling " to body of heater, the body of heater temperature difference is reduced,
Bursting stress is kept to very little, the heat for being advantageous to combustion fire is conducted to a pot water by heating surface, increases the heat exchange amount of heating surface, favorably
In improving the thermal efficiency, reducing heat loss due to exhaust gas, for the longer molded coal boiler of boiler furnace, again without slag dirt in body of heater
Dead angle is deposited, so as to ensure that boiler operatiopn is safe and reliable, heat exchange efficiency is high, heat loss is low, ensures boiler main frame service life length
Up to more than 10 years, an essential, vital technological means.
Benzene plate can be used as heat-insulation layer by having the folder water wall type boiler body outer surface of this programme only, you can reached and made us
Satisfied heat insulation effect, environment temperature in several same boiler rooms of hull-skin temperature is surveyed, hand, which is touched, feels cool, body of heater surface heat radiating loss
It is minimum, it is≤2%, year-on-year prior art, such as the molded coal boiler of CDZH types, hand, which touches its outer packing colored steel outer surface, can feel awfully hot
Even a little scald, the body of heater surface heat radiating loss of the body of heater surface heat radiating loss of prior art CDZH types apparently higher than this programme.
Slag tap cover 24 and the water seal cylinder 27 in its lower insertion water, it is ensured that control wind is reliable, is to ensure boiler normal operation
In indispensable two parts.Slagging tap has the slag swash plate that inclines for tilting 45 ° in cover 24, and longitudinal tail end of plate rail 2 is pushed away from holding
A type coal holding raft 3 simultaneously, the coal briquete slag on type coal holding raft 3 is all poured into and slagged tap in cover 24, through the water seal cylinder under cover
27 discharge out of the furnace, it is ensured that deslagging is smooth, does not block;Slag tap cover 24 fore side be provided with vertical guide oblique angle be 8 °~12 ° from
Enclosed support row in series of fortified passes takes out door 25, behind be provided with and smash door 26 to pieces with slag Jiao for the deadweight closing type that vertical guide oblique angle is 8 °~12 °,
Opening slag Jiao, which smashs door 26 to pieces, can easily smash the clinker for the bulk coking being stuck on slag beam to pieces.
In summary, this unfired tube is without brick atmospheric pressure water heating coal boiler technical scheme, in practice it has proved that:The smoke evacuation of the present invention
Heat waste disability control 6.34% or so, solid incomplete combustion loss≤5.00%, body of heater surface heat radiating loss≤2.00%,
Gas incomplete combustion loss≤1.00%, heat loss due to sensible heat in slag≤0.76%, five heat loss of the above add up to
15.10%, realize that the thermal efficiency is up to 84.90 ﹪ energy-saving index, and main frame is safe for operation, reliable, service life is up to 10 years
Above fault-free.
With the CDZH1.4MW of the prior art instructions for the use of an article sold drum longitudinal Industrial Boiler profile year-on-year coal consumption of molded coal boiler,
It is all 15,960KJ/Kg by the actual caloric value of moulded coal, market price calculates with by 600 yuan/t, with by 151 days in a heating period
Meter, this programme save coal 34.28t, allow user to save coal money 20 compared with the CDZH1.4MW molded coal boilers of the upper nominal thermal efficiency 78% of figure,
It is 568 yuan, interior per mono- heating period of 0.7MW to save as many as coal Qian Dawan members.
Without brick atmospheric pressure water heating coal boiler, the combustion fire in combustion chamber flows through aditus laryngis and enters tube bank case convection current to be changed unfired tube
Heat, tube bank case reasonable Arrangement have enough convection heating surfaces, and it is 154C ° to control exhaust gas temperature, slightly below critical-temperature, avoids pipe
Beam case tail end produces acid corrosion, the general structure of two backhaul, it is ensured that without heat exchange dead band, does not produce the low temperature of acid corrosion
Position and thoroughly away from acid corrosion, ensure that boiler main frame service life is up to more than 10 years.
Claims (10)
1. a kind of unfired tube is provided with heat-insulation layer without brick atmospheric pressure water heating coal boiler, boiler body outer surface；Body bottom portion air compartment
In space, by crossbeam（1）, crossbeam（1）Longitudinal plate rail of holding（2）And in longitudinal plate rail（2）The type coal holding raft moved above
（3）, independent combustion apparatus is formed, longitudinal plate rail is with giving coal platform（40）Mutually it is connected, longitudinal plate rail（2）Superjacent air space is burning
Room（6）, combustion chamber（6）By combustion chamber top plate, all around radiation heating-surface and top plate and all around the heat-insulation layer of heating surface is formed, burning
Ceiling portion water interlayer（13）Top for tube bank case（7）, it is phase between combustion chamber and the heating surface and all around Side fascia of restraining case
Intercommunicated water interlayer, combustion chamber coal feed point are provided with lock gate hatch（36）, rear wall slag notch is provided with cover of slagging tap（24）With water seal cylinder
（27）, restrain box back and be provided with out smoke box（28）；Top of combustion chamber water interlayer（13）Front end is provided with restraining case（7）Combustion fire stream phase
Logical aditus laryngis（5）, it is characterised in that tube bank case（7）Horizontal water tube convection heating surface is disposed with exhaust gases passes, restrains water folder on case
Layer（18）In be provided with supply water injector device and even sucking-off water installations；Type coal holding raft（3）It is not less than with moulded coal surrounding contact width
17mm, type coal holding raft（3）Rail is controlled with combustion chamber both sides（12）Between gap for the arrangement of moulded coal support it is long 3%~4.2%, arrange long super
0.9m then and hold in the palm rows double using each column is crossed, type coal holding raft bearing capacity is not less than 23 times to kerosene cylinder startup thrust；Air compartment is empty
In, by the wind dividing plate away from preceding Side fascia 0.8m~1.38m（23）It is separated to form air compartment（100）, all around inwall is set in air compartment space
There are heat-insulation layer, air compartment（100）Operation side wall be provided with board plug type air register（22）, this air register（22）The section of air intake altogether face
Product is 0.07m2~0.11m2/0.7MW；Combustion chamber（6）It is 5.67~8.98 that longitudinal length arranges the ratio between long with moulded coal support：1, combustion
Burn indoor maximum coal containing quantity >=2.3t/0.7MW, moulded coal coal seam maximum height≤720mm, the pyrotechnics stream in coal seam during maximum height
Logical area of section is 0.22m2~0.37m2/0.7MW。
2. unfired tube according to claim 1 is without brick atmospheric pressure water heating coal boiler, it is characterised in that combustion chamber（6）Top plate
With left and right sides heated sheet, tube bank case（7）Upper and lower plates and both sides tube sheet are equipped with expansion bends（37）.
3. unfired tube according to claim 2 is without brick atmospheric pressure water heating coal boiler, it is characterised in that described expansion bends
（37）Use the seamless steel pipe of wall thickness and heated flue flat board uniform thickness with heated flue steel plate with two-sided fillet water shutoff weld seam solid welding
Excision seamless steel pipe redundance forms afterwards.
4. unfired tube according to claim 1 is without brick atmospheric pressure water heating coal boiler, it is characterised in that tube bank box top water
Supply water injector device is provided with interlayer, supply water injector device is responsible for including backwater（16）And backwater is responsible for（16）What is connected is some
Return branch（17）The supply water injector nozzle formed（34）With decline groove（35）, return branch（17）Along tube bank box top water folder
Layer vertical leads to both sides furnace wall water interlayer, supply water injector nozzle（34）With declining groove（35）Notch centering, decline groove and be fixed on two
On wing furnace wall water interlayer Side fascia, and there is water layer to separate heating surface.
5. unfired tube according to claim 4 is without brick atmospheric pressure water heating coal boiler, it is characterised in that is responsible for backwater
（16）It is connected and is connected with lateral jet pipe（10）, its horizontal ejiction opening（11）It is arranged at top of combustion chamber water interlayer（13）One
Side.
6. unfired tube according to claim 5 is without brick atmospheric pressure water heating coal boiler, it is characterised in that horizontal ejiction opening
（11）Injection flow velocity be the 2m/ seconds.
7. unfired tube according to claim 1 is without brick atmospheric pressure water heating coal boiler, it is characterised in that described water outlet is even
Inhale the hot water fairlead of device（19）Isometric, the hot water fairlead with tube bank case（19）Top is evenly equipped with some even suckers（109）.
8. unfired tube according to claim 1 is without brick atmospheric pressure water heating coal boiler, it is characterised in that described lock gate hatch
（36）Provided with the circulating water interlayer connected with pot water.
9. unfired tube according to claim 1 or 2 is without brick atmospheric pressure water heating coal boiler, it is characterised in that horizontal water tube fork row
It is arranged in tube bank case（7）Exhaust gases passes in, with horizontal sextant angle be 4.8 °~8.8 °.
10. unfired tube according to claim 1 or 2 is without brick atmospheric pressure water heating coal boiler, it is characterised in that slag notch is set
There is radiation heat shield（21）, cover of slagging tap（24）Bottom is water seal cylinder（27）, accept moulded coal guide rail（2）Provided with inclining for inclination 45° angle
Slag swash plate（38）, cover of slagging tap（24）Fore side be provided with vertical guide oblique angle be 8 °~12 ° deadweight closing type support row take out door
（25）, it is provided with smash door to pieces with slag Jiao for the deadweight closing type that vertical guide oblique angle is 8 °~12 ° afterwards（26）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510844907.0A CN105371483B (en) | 2015-11-25 | 2015-11-25 | Unfired tube is without brick atmospheric pressure water heating coal boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510844907.0A CN105371483B (en) | 2015-11-25 | 2015-11-25 | Unfired tube is without brick atmospheric pressure water heating coal boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105371483A CN105371483A (en) | 2016-03-02 |
| CN105371483B true CN105371483B (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510844907.0A Expired - Fee Related CN105371483B (en) | 2015-11-25 | 2015-11-25 | Unfired tube is without brick atmospheric pressure water heating coal boiler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112833383A (en) * | 2021-01-06 | 2021-05-25 | 刘传祥 | Vertical biomass briquetting solid fuel boiler |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5752707A (en) * | 1980-09-16 | 1982-03-29 | Babcock Hitachi Kk | Multi-stage fluidized boiler |
| CN2251114Y (en) * | 1996-02-05 | 1997-04-02 | 山东工业大学 | Clean burning boiler using soft coal and briquette |
| JPH10332128A (en) * | 1997-06-02 | 1998-12-15 | Ishikawajima Harima Heavy Ind Co Ltd | Ash treatment equipment of coal fired boiler |
| CN2359571Y (en) * | 1998-10-27 | 2000-01-19 | 宋传泰 | Coal-feed and cinder-discharging push-and-pull device for honeycomb briquette boiler |
| CN2662142Y (en) * | 2003-11-06 | 2004-12-08 | 刘沛宪 | Multi-function briquette heat-pipe boiler |
| CN1975279A (en) * | 2005-12-02 | 2007-06-06 | 王森 | Non-closed high-temperature hot water boiler |
| CN201093710Y (en) * | 2007-04-14 | 2008-07-30 | 刘传祥 | Mechanical grate gas integrated atmospheric hot water boiler |
-
2015
- 2015-11-25 CN CN201510844907.0A patent/CN105371483B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5752707A (en) * | 1980-09-16 | 1982-03-29 | Babcock Hitachi Kk | Multi-stage fluidized boiler |
| CN2251114Y (en) * | 1996-02-05 | 1997-04-02 | 山东工业大学 | Clean burning boiler using soft coal and briquette |
| JPH10332128A (en) * | 1997-06-02 | 1998-12-15 | Ishikawajima Harima Heavy Ind Co Ltd | Ash treatment equipment of coal fired boiler |
| CN2359571Y (en) * | 1998-10-27 | 2000-01-19 | 宋传泰 | Coal-feed and cinder-discharging push-and-pull device for honeycomb briquette boiler |
| CN2662142Y (en) * | 2003-11-06 | 2004-12-08 | 刘沛宪 | Multi-function briquette heat-pipe boiler |
| CN1975279A (en) * | 2005-12-02 | 2007-06-06 | 王森 | Non-closed high-temperature hot water boiler |
| CN201093710Y (en) * | 2007-04-14 | 2008-07-30 | 刘传祥 | Mechanical grate gas integrated atmospheric hot water boiler |
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| Publication number | Publication date |
|---|---|
| CN105371483A (en) | 2016-03-02 |
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Inventor after: Liu Chuanxiang Inventor after: Lu Yan Inventor before: Liu Chuanxiang |
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Effective date of registration: 20180321 Address after: 118100 Fengshan Road East Transportation Bureau of Fenghuang City, Fengcheng City, Liaoning Province, No. 204 Patentee after: Dandong Chuan Xiang environmental protection boiler Co.,Ltd. Address before: 118003 room 31, Tongchun street, revitalization area, Dandong, Liaoning Province, room 603 Patentee before: Liu Chuanxiang |
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