CN110081722A - A kind of efficient waste-heat boiler - Google Patents
A kind of efficient waste-heat boiler Download PDFInfo
- Publication number
- CN110081722A CN110081722A CN201910336832.3A CN201910336832A CN110081722A CN 110081722 A CN110081722 A CN 110081722A CN 201910336832 A CN201910336832 A CN 201910336832A CN 110081722 A CN110081722 A CN 110081722A
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- Prior art keywords
- heat
- cavity
- smoke chamber
- parts
- outer ring
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Links
- 239000002918 waste heat Substances 0.000 title claims abstract description 29
- 239000000779 smoke Substances 0.000 claims abstract description 122
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000007789 gas Substances 0.000 claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 239000000945 filler Substances 0.000 claims description 31
- 238000004321 preservation Methods 0.000 claims description 29
- 239000002245 particle Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- -1 polypropylene Polymers 0.000 claims description 13
- 229920001155 polypropylene Polymers 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 10
- 239000003063 flame retardant Substances 0.000 claims description 9
- 239000004793 Polystyrene Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 8
- 239000004088 foaming agent Substances 0.000 claims description 8
- 239000012760 heat stabilizer Substances 0.000 claims description 8
- 229910052816 inorganic phosphate Inorganic materials 0.000 claims description 8
- 229910052909 inorganic silicate Inorganic materials 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229920002223 polystyrene Polymers 0.000 claims description 8
- 229920000515 polycarbonate Polymers 0.000 claims description 7
- 239000004417 polycarbonate Substances 0.000 claims description 7
- 229920005906 polyester polyol Polymers 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 7
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 claims 2
- 239000003054 catalyst Substances 0.000 claims 1
- 239000003546 flue gas Substances 0.000 description 41
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 38
- 230000000694 effects Effects 0.000 description 10
- 238000009413 insulation Methods 0.000 description 9
- 239000000428 dust Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 5
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000013517 stratification Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 235000019976 tricalcium silicate Nutrition 0.000 description 1
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/02—Linings; Jackets; Casings
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of efficient waste-heat boilers, the smoke inlet including being set to shell one end, and the exhanst gas outlet with smoke inlet opposition setting；Smoke inlet and exhanst gas outlet are connected to the heat exchange smoke chamber in shell respectively；The smoke chamber that exchanges heat includes identical first cavity of structure and the second cavity；First cavity is connected to smoke inlet, and the second cavity is connected to exhanst gas outlet；First cavity and the second cavity are cylindrical, and the first cavity includes the outer ring arc panel composition of two opposition, and four endpoints C1, C2, D1 and the D2 in two outer ring arc panel cross sections constitute rectangle；The corresponding central angle a of arc panel is 100 ° -120 °；Several heat exchanging water pipes are distributed in the first cavity and the second cavity, heat exchanging water pipe is distributed in a ring along edge in the first cavity and the second cavity；Several fins are uniformly installed, two pieces of fins being located on same vertical plane constitute one group of H-type fin on heat exchanging water pipe；Several groups H-type fin is welded on each heat exchanging water pipe.
Description
Technical field
The invention belongs to the technical fields of boiler, and in particular to a kind of efficient waste-heat boiler.
Background technique
Fesi Furnace generates the high-temperature flue gas of a large amount of entrainment of fine grits in smelt production.Produce 1 ton of 75% silicon
Iron theoretically about generates 1500~2000Nm3Furnace gas, main component is N in flue gas2、O2、CO2、H2O, due to air excess system
Number is very big, therefore substantially close to composition of air.
SO in flue gas2Depending on content is according to the sulfur content brought into raw material, the sulfur content of reducing agent is depended mainly on.1 ton
The sulfur content that 75% ferrosilicon raw material is brought into is generally in 5-10kg or so, wherein 90% burns into SO2Enter flue gas afterwards, in semiclosed electricity
Amount of sulfur contenting in smoke is generally in 0.1~lg/Nm in furnace3Left and right.
Flue dust in flue gas mainly consists of two parts, and a part is the mechanical blowout object of furnace charge, mainly coke powder and coal
Powder；Another part is the SiO in silica2It is reduced the gaseous state SiO to be formed, these SiO should continue to be reduced into silicon, form silicon
Iron, but some actually total evolution charge level, are reoxidised into SiO by oxygen in air, the fines of amorphism are formed, by cigarette
Outside gas band is come out of the stove, the former accounts for about 10%~20% to this two parts flue dust, and the latter accounts for about 80%-90%, and the fume amount of ferrosilicon depends on
The rate of recovery of silicon in smelting process, under normal circumstances, when the silicon rate of recovery is 85%-90%, l tons of ferrosilicon about generate 200~
300kg dust, when electric furnace pierces fire, the Si rate of recovery declines, and Dust Capacity will sharply increase.Dust average grain diameter is 0.1 μm, all
It is the oxide of no crystal silicon.True specific gravity is only 2.23g/cm3, and specific surface area reaches 20m2/g, and specific resistance is 1.3 × 1013 Ω
cm。
Flue gas thermal content is big, and heat content is equivalent to the electricity of input in 1 ton of 75% ferrosilicon flue gas, therefore recovery waste heat is latent
It is very big in energy, and existing boiler preheating exchange efficiency is low, cannot to the greatest extent convert thermal energy, causes the wave of heat
Take.Except this, existing boiler preheating exchanger is metal material, when flue gas flows into exchanger, the flue gas heat of 7%-15%
To carry out heat exchange by the metal plate of exchanger and outside air, and Fesi Furnace smelt in exhaust gas volumn when it is huge, therefore make
At thermal loss be also huge.
Summary of the invention
It is an object of the invention to be directed to above-mentioned deficiency in the prior art, a kind of efficient waste-heat boiler is provided, to solve
The low problem of existing boiler preheating utilization rate.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of efficient waste-heat boiler comprising be set to the smoke inlet of shell one end, and with smoke inlet to erecting
The exhanst gas outlet set；Smoke inlet and exhanst gas outlet are connected to the heat exchange smoke chamber in shell respectively；
The smoke chamber that exchanges heat includes identical first cavity of structure and the second cavity；First cavity is connected to smoke inlet, and second
Cavity is connected to exhanst gas outlet；First cavity and the second cavity are cylindrical, and the first cavity includes the outer ring arc of two opposition
Shape board group is at and four endpoints C1, C2, D1 and the D2 in two outer ring arc panel cross sections constitute rectangle；The corresponding circle of arc panel
Heart angle a is 100 ° -120 °；Several heat exchanging water pipes are distributed in the first cavity and the second cavity, heat exchanging water pipe is along first
Edge is distributed in a ring in cavity and the second cavity；Several fins are uniformly installed, two pieces are located at same vertical plane on heat exchanging water pipe
On fin constitute one group of H-type fin；Several groups H-type fin is welded on each heat exchanging water pipe；
Uniformly fill several heat preservation fillers in gap between heat exchange smoke chamber and shell；Shell includes heat preservation from inside to outside
Layer, insulating sandwich and metal plate；The uniform filled polyurethane foam of insulating layer, insulating sandwich are vacuum, and metal plate is steel plate.
Preferably, heat exchange smoke chamber includes outer ring smoke chamber and inner ring smoke chamber；Inner ring smoke chamber includes identical first inner ring of structure
Smoke chamber and the second inner ring smoke chamber；Pass through two pieces of connecting plate connections between first inner ring smoke chamber and the second inner ring smoke chamber；First inner ring
Breakpoint A1, A2, B1 and B2 on the same cross section of smoke chamber constitute rectangle.
Preferably, outer ring smoke chamber includes the first outer ring smoke chamber and the second outer ring smoke chamber for being connected to the first outer ring smoke chamber.
Preferably, water outlet collection is arranged in setting water inlet header at the top of exhanst gas outlet, cover top portion at smoke inlet position
Case；A temperature sensor and pressure sensor are respectively mounted in water inlet header and water outlet header；On water inlet pipe in header of intaking
Electrically operated valve is installed；Shell side installs control panel, and display screen is arranged on control panel；It is embedded in the control panel
AT89S51 chip；DI6 and DI7 pin on AT89S51 chip is electrically connected with temperature sensor, DI4 and DI3 pin and pressure
Sensor electrical connection, DI2 pin are electrically connected with buzzer；Electrically operated valve is connect with pin DO1 and 24v power end, display screen with
DO2 with 24v power end connects.
Preferably, temperature sensor is 24V PT100 temperature sensor；Pressure sensor is the change of 24V YB131 type pressure
Send device；Electrically operated valve is DN15 XY-02 DC24V Hydraulic-control valves.
Preferably, outer casing bottom offers at least two ash holes, installs ash hole protection cap at ash hole.
A kind of heat preservation filler of efficient waste-heat boiler, including following quality component:
6-8 parts of slag velveteen, 9-12 parts of inorganic silicate particles, 4-6 parts of polypropylene fibre, inorganic phosphate salt particle 10-
12 parts, 30-36 parts of polyester polyol, 10-20 parts of fire retardant, 10-12 parts of polycarbonate, 8-10 parts of fire clay, heat stabilizer
14-16 parts, 15-17 parts of pollopas, 20-22 parts of granular polystyrene, 10-18 parts of kicker, 4-8 parts of foaming agent, curing agent
7-8 parts, 80-100 parts of water.
A kind of preparation method of efficient waste-heat boiler heat preservation filler, comprising:
S1, polypropylene fibre and water are imported in blender according to weight ratio, stirs 10 under 800~1500rpm revolving speed
~20min, until polypropylene fibre stirs to reticular structure, sequentially add slag velveteen, polyester polyol, polycarbonate,
Kicker and fire clay, and stirred 1~1.5 hour under 800~1500rpm revolving speed, it is uniformly mixed material, is obtained
Mixed composition A；
S2, by inorganic silicate particles, inorganic phosphate salt particle, heat stabilizer, pollopas, granular polystyrene, foaming agent,
Curing agent and fire retardant weight ratio import in grinder, water are added during the grinding process, and grind in 1200~1500rpm
Under 90 DEG C~120 DEG C revolving speed, temperature grinding temperatures, grinds 1~1.5 hour, obtain mixed component B；
S3, mixed composition A and B are imported in blender, is stirred at a temperature of 800~1500rpm revolving speed, 60 DEG C~90 DEG C
0.5~1.0 hour, it is uniformly mixed material, obtains mixed composition C；
S4, mixed composition C is put into ion dewatering machine, frequency be 3000~4000HZ under carry out water process 20~
30min removes moisture removal, obtains heat preservation filler.
Preferably, during the grinding process, 5~6 parts of water are added in every 10~12min of minor tick to mixed composition in step S2.
Preferably, it is specifically included in step S3: mixed composition A and B being imported in blender and are stirred, when mixture stirs
Mix to it is thick when, 10 parts of higher fatty acids are added and continue to stir
Efficient waste-heat boiler provided by the invention, has the advantages that
The present invention passes through heat exchange smoke chamber, the annular spread of heat exchanging water pipe and the cooperation of H-type fin of arc shape, in flue gas gas
It is not conventional arrangement (neat is rectangular), flue gas since the arrangement mode of heat exchange pipeline is annular when stream enters from gas inlet
Under the flow-disturbing effect of H-type fins group, flue gas will be flowed along multiple directions, and full of entire heat exchange smoke chamber；In addition exchange heat cigarette
The annular spread of chamber, smoke-shock exchange heat smoke chamber inner wall after, will do it refraction, and the angle of refraction be it is changeable, multidirectional, instead
The flue gas stream penetrated impingement heat transfer water pipe again carries out heat exchange with heat exchanging water pipe.I.e. in heat exchange smoke chamber, the annular of heat exchanging water pipe
Under distribution and the cooperation of H-type fin, the heat exchange angle and heat exchange area of heat exchanging water pipe and flue gas are increased, heat exchange is increased
Efficiency avoids the waste of the energy.
Several heat preservation fillers are uniformly filled in gap between heat exchange smoke chamber and shell, and heat preservation filler has high temperature resistant, heat-insulated
Effect is good, and heat preservation rate is high, has refractory properties, and the stable characteristic of chemical property can effectively reduce waste heat and external heat exchange,
Increase the heat insulation effect inside heat exchanger, and then increases the heat exchange efficiency of heat exchanger.
Detailed description of the invention
Fig. 1 is efficient waste-heat boiler cross sectional view.
Fig. 2 is the cross sectional view that efficient waste-heat boiler includes inner ring smoke chamber.
Fig. 3 is the structure chart of efficient waste-heat boiler inner ring smoke chamber and outer ring smoke chamber.
Fig. 4 is efficient waste-heat boiler structure chart.
Fig. 5 is efficient waste-heat boiler control panel internal circuit diagram.
Fig. 6, Fig. 7 are efficient waste-heat boiler heat exchanging water pipe installation fins structure chart.
Wherein, 1, smoke inlet；2, shell；3, exhanst gas outlet；4, support column；51, outer ring smoke chamber；52, inner ring smoke chamber；6,
Exchange heat smoke chamber；7, ash hole protection cap；8, it is discharged header；9, water outlet；10, temperature sensor；11, pressure sensor；12, into
Water header；13, water inlet pipe；14, insulating layer；15, insulating sandwich；16, metal plate；17, heat exchanging water pipe；18, connecting plate；19, electric
Movable valve；20, display screen；21, control panel；22, fin；23, filler is kept the temperature；24, the first cavity；25, the second cavity；63,
Outer ring arc panel；64, the first inner ring smoke chamber；65, the second inner ring smoke chamber；66, the first outer ring smoke chamber；67, the second outer ring smoke chamber.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
According to one embodiment of the application, with reference to Fig. 1-Fig. 7, the efficient waste-heat boiler of this programme, including it is set to outer
The smoke inlet 1 of 2 one end of shell, and the exhanst gas outlet 3 with the opposition setting of smoke inlet 1；Smoke inlet 1 and exhanst gas outlet 3 divide
It is not connected to the heat exchange smoke chamber 6 in shell 2.
Four support columns 4 are arranged in 2 surrounding of shell, are used to support shell 2；2 bottom of shell opens up two ash holes, for fixed
The dust stratification that Shi Qingli exchanges heat in smoke chamber 6 installs ash hole protection cap 7 at ash hole, when not needing cleaning dust stratification, is embedded in (mistake
It is full of cooperation) ash hole.
The smoke chamber 6 that exchanges heat includes identical first cavity 24 of structure and the second cavity 25, and the first cavity 24 connects with smoke inlet 1
Logical, the second cavity 25 is connected to exhanst gas outlet 3.
First cavity 24 and the second cavity 25 are cylindrical, and the first cavity 24 includes the outer ring arc panel 63 of two opposition
Composition, and four endpoints C1, C2, D1 and the D2 in two 63 cross sections of outer ring arc panel constitute rectangle, the corresponding center of circle of arc panel
Angle a is 100 ° -120 °, preferably 120 °.
Several heat exchanging water pipes 17 are distributed in the first cavity 24 and the second cavity 25, heat exchanging water pipe 17 is along the first chamber
Edge is distributed in a ring in body 24 and the second cavity 25.It is distributed relative to traditional rectangular, annular spread more agrees with heat exchange cigarette
The shape of chamber 6 removes this, and the airflow channel formed between the heat exchanging water pipe 17 of annular spread is more complicated, and airflow channel is more,
It can increase the flowing time of air-flow, increase the direction of gas impingement heat transfer water pipe 17, compared to the impact of a traditional direction type,
The present invention can multiple directions impingement heat transfer water pipe 17, increase heat exchanging water pipe 17 heat exchange contact area, increase heat exchange efficiency.
With reference to Fig. 6 and Fig. 7, several fins 22 are evenly distributed on heat exchanging water pipe 17, two pieces are located on same vertical line
Fin 22 is welded on heat exchanging water pipe 17.Two pieces of 22 1 group weldings of fin constitute H-type fin 22, each on heat exchanging water pipe 17
Several groups H-type fin 22 is installed on heat exchanging water pipe 17, forms exhaust gases passes, fin 22 and air-flow flowing side between several fins 22
To parallel, soot particle is without deposition, and fin 22 is generated slight perturbations by sweep of gases, changes the direct punching of flue gas exchange hot-water line 17
Brush angle reduces abrasion, realizes from deashing, reduces flue gas resistance, reduces the dust stratification being attached on heat exchanging water pipe 17, and then indirectly
Increase the heat exchange efficiency of heat exchanging water pipe 17.
Wherein, H-type fin 22 can be welded on single heat exchanging water pipe 17, can also be welded in multiple heat exchanging water pipes 17
On, depending on actual conditions, Fig. 7 is that H-type fin 22 is welded on two heat exchanging water pipes 17.
Exchange heat smoke chamber 6, heat exchanging water pipe 17 annular spread and H-type fin 22 cooperate, flue gas stream from gas inlet into
It is fashionable, it is not conventional arrangement (neat is rectangular) since the arrangement mode of heat exchange pipeline is annular, flue gas is at 22 groups of H-type fin
Under flow-disturbing effect, flue gas will be flowed along multiple directions, and full of entire heat exchange smoke chamber 6；In addition the annular point of heat exchange smoke chamber 6
Cloth, smoke-shock exchange heat smoke chamber 6 inner wall after, will do it refraction, and the angle of refraction is changeable, multidirectional, the flue gas of reflection
Air-flow impingement heat transfer water pipe 17 again carries out heat exchange with heat exchanging water pipe 17.I.e. in heat exchange smoke chamber 6, the annular of heat exchanging water pipe 17
Under distribution and H-type fin 22 cooperate, the heat exchange angle and heat exchange area of heat exchanging water pipe 17 Yu flue gas are increased, heat is increased
Exchange efficiency avoids the waste of the energy.
According to one embodiment of the application, several heat preservation fillers are uniformly filled in the gap to exchange heat between smoke chamber 6 and shell 2
23；Shell 2 includes insulating layer 14, insulating sandwich 15 and metal plate 16 from inside to outside；The uniform filled polyurethane of insulating layer 14 bubble
Foam, insulating sandwich 15 are vacuum, and metal plate 16 is steel plate.
Keeping the temperature filler includes following mass parts component:
6-8 parts of slag velveteen, 9-12 parts of inorganic silicate particles, 4-6 parts of polypropylene fibre, inorganic phosphate salt particle 10-
12 parts, 30-36 parts of polyester polyol, 10-20 parts of fire retardant, 10-12 parts of polycarbonate, 8-10 parts of fire clay, heat stabilizer
14-16 parts, 15-17 parts of pollopas, 20-22 parts of granular polystyrene, 10-18 parts of kicker, 4-8 parts of foaming agent, curing agent
7-8 parts, 80-100 parts of water.
Wherein, slag velveteen can increase heat-insulated thermal resistance, reduce heat transfer coefficient, reduce the heat outside heat and heat exchange smoke chamber 6
Exchange increases heat insulation effect.
Fire clay, which is selected, has bauxite resistant to high temperature, since the flue-gas temperature that Fesi Furnace smelting process generates is higher than
500 degrees Celsius, therefore the fire clay that can do refractory material is selected, increase the refractory temperature of heat preservation filler.
Inorganic silicate particles are 12 parts of dicalcium silicates or 10 parts of tricalcium silicate particles, inorganic phosphate are orthophosphates,
The basic material of inorganic silicate and inorganic phosphate as filler is selected, even if still having when being higher than 600 degrees Celsius
Higher hardness, and there is certain heat insulation function, applied to the gap between heat exchange smoke chamber 6 and shell 2, agree with very much.
Polypropylene fibre density is small, light weight, resistivity height (7 × 1019Ω .cm), thermal coefficient is small, can effectively keep the temperature.
Except this, heat preservation filler of the invention has good dispersion and the high characteristic of intensity using polypropylene fibre, throws as primary material
Enter in first of technique, when being stirred for reticular structure, add other materials, utilizes the good dispersion of polypropylene fibre special
Property, convenient for mixing with other materials, increase mixing effect.
Polyester polyol has preferable intermiscibility, can be used as the adhesive of this heat preservation filler, increases the glue of heat preservation filler
Sticky energy.
Polycarbonate, mainly using it with heat-resisting, fire-retardant and wear-resisting characteristic, increase heat preservation filler high temperature resistant and
Antiwear characteristic.
Pollopas contains polarity oxygen atom in molecular structure, has stronger adhesive force to object plane, utilizes the spy
Property, so that heat preservation filler has certain adhesive ability, it can be more attached to heat exchange 6 outer surface of smoke chamber, so that heat preservation is filled out
Material can be acted on directly with object plane, increase the heat insulation effect of filler.
Granular polystyrene makes entirely to keep the temperature filler with one using its expansion function mainly using its expansion and heat insulation function
Fixed expansion and loose nature are easier to full of the gap between entire heat exchange smoke chamber 6 and shell 2；Using its heat insulation function, heat is reduced
Amount loss.
Fire retardant, such as silicon-series five-retardant, since some high molecular material burning points are lower in mixing material, such as granular polystyrene and
Polypropylene fibre, therefore the characteristic that suitable fire retardant assigns combustible polymers flame retardancy is added.
Heat stabilizer, heat stabilizer include the mixture of calcium zinc stabilizer and rare earth calcium zinc stabilizer composition, and calcium zinc is stablized
The component of agent and rare earth calcium zinc stabilizer mass parts ratio is 4:3, for preventing or delaying the heat ageing of mixing material.
Foaming agent selects physical blowing agent, increases the loose nature of heat preservation filler, makes it easier for full of entire heat exchange cigarette
Gap between chamber 6 and shell 2.
Kicker is identical as foaming agent function.
Curing agent, for accelerating the solidification of heat preservation filler.
According to one embodiment of the application, a kind of preparation method keeping the temperature filler, comprising:
S1, polypropylene fibre and water are imported in blender according to weight ratio, stirs 10 under 800~1500rpm revolving speed
~20min, until polypropylene fibre stirs to reticular structure, sequentially add slag velveteen, polyester polyol, polycarbonate,
Kicker and fire clay, and stirred 1~1.5 hour under 800~1500rpm revolving speed, it is uniformly mixed material, is obtained
Mixed composition A；
S2, by inorganic silicate particles, inorganic phosphate salt particle, heat stabilizer, pollopas, granular polystyrene, foaming agent,
Curing agent and fire retardant weight ratio import in grinder, water are added during the grinding process, and grind in 1200~1500rpm
Under 90 DEG C~120 DEG C revolving speed, temperature grinding temperatures, grinds 1~1.5 hour, obtain mixed component B；
S3, mixed composition A and B are imported in blender, is stirred at a temperature of 800~1500rpm revolving speed, 60 DEG C~90 DEG C
0.5~1.0 hour, it is uniformly mixed material, obtains mixed composition C；
S4, mixed composition C is put into ion dewatering machine, frequency be 3000~4000HZ under carry out water process 20~
30min removes moisture removal, obtains heat preservation filler.
During the grinding process, 5~6 parts of water are added in every 10~12min of minor tick to mixed composition in step S2.
It is specifically included in step S3: mixed composition A and B being imported in blender and are stirred, when mixture is stirred to viscous
When thick shape, 10 parts of higher fatty acids are added and continue to stir.
Wherein, higher fatty acids selects branched higher fatty acids, with high thermal stability；
Step S4 also can be replaced mixed composition C and be put into baking vessel, and 40min~50min is toasted at 150 DEG C~200 DEG C,
Obtain heat preservation filler.
Since flue-gas temperature belongs to high temperature, pass through heat exchanger shell and outer to avoid or reduce quite a few flue gas heat
Heat exchange occurs for boundary's air, and heat preservation filler of the invention is filled in the gap between heat exchange smoke chamber 6 and shell 2, less heat
Loss.
And heat preservation filler has high temperature resistant, good heat-insulation effect, heat preservation rate is high, has refractory properties, and chemical property is stable
Characteristic can effectively reduce waste heat and external heat exchange, increase the heat insulation effect inside heat exchanger, and then increase changing for heat exchanger
The thermal efficiency.
According to one embodiment of the application, the smoke chamber 6 that exchanges heat can also be the structure of outer ring smoke chamber 51 and inner ring smoke chamber 52.
Wherein, inner ring smoke chamber 52 includes the identical first inner ring smoke chamber 64 of structure and the second inner ring smoke chamber 65, the first inner ring
It is connected between smoke chamber 64 and the second inner ring smoke chamber 65 by two pieces of connecting plates 18；It is disconnected on the same cross section of first inner ring smoke chamber 64
Point A1, A2, B1 and B2 constitute rectangle.
Outer ring smoke chamber 51 includes the first outer ring smoke chamber 66 and the second outer ring smoke chamber 67 being connected to the first outer ring smoke chamber 66, outside
The shape in a ring of ring smoke chamber 51 is formed by the space between inner ring smoke chamber 52 and heat exchange smoke chamber 6.
Flue gas enters from smoke inlet 1, and part of smoke enters inner ring smoke chamber 52, and another part flue gas enters outer ring smoke chamber
51。
Into the gas of outer ring smoke chamber 51, along impact flowing in 52 outer of inner ring smoke chamber, outer ring smoke chamber 51, and change stream
Dynamic direction, increases the contact area of heat exchanging water pipe 17；Flue gas continues to flow, and impacts connecting plate 18, and reflect, the cigarette of reflection
Gas forms local eddy currents, flows flue gas along multiple directions, more flue gases is promoted to arrive under the flow-disturbing effect of H-type fin 22
Up to the interior edge of the first outer ring smoke chamber 66, the dead angle of the first outer ring smoke chamber 66 is reduced, utilizes smoke heat energy to greatest extent.Utilize
The arcuate structure of second inner ring smoke chamber 65 and the first inner ring smoke chamber 64, H-type fin 22 in addition, the flue gas stream that rule is entered,
Carry out direction change, and change direction be it is irregular, it is changeable, flowing of the flue gas in outer ring smoke chamber 51 can be effectively increased
Time, and increase the contact area of heat exchanging water pipe 17 Yu flue gas, increase heat exchange efficiency, reduces energy loss.
Into the gas of inner ring smoke chamber 52, in annular heat exchange tube road, flue gas is acted in 22 groups of H-type fin of flow-disturbing in addition
Under, flue gas will be flowed along multiple directions, and be full of entire second inner ring smoke chamber 65；When flue gas enters the first inner ring smoke chamber 64,
Angle due to entering 64 flue gas of the first inner ring smoke chamber has several, and after smoke-shock connecting plate 18, angle of reflection equally has
Have multiple, promotes flue gas that can reach the interior along part (mainly in along dead angle) of the first inner ring smoke chamber 64, it is ensured that the first inner ring
Each heat exchanging water pipe 17 on edge sufficiently can carry out direct heat exchange with flue gas in smoke chamber 64, increase the heat exchange efficiency of flue gas.
After the inner wall of smoke-shock smoke chamber, reflected, and the angle reflected is changeable, multidirectional, the flue gas gas of reflection
Impingement heat transfer water pipe 17 again is flowed, carries out heat exchange with heat exchanging water pipe 17.I.e. in heat exchange smoke chamber 6, the annular point of heat exchanging water pipe 17
Under cloth and H-type fin 22 cooperate, the heat exchange angle and heat exchange area of heat exchanging water pipe 17 Yu flue gas are increased, hot friendship is increased
Efficiency is changed, the waste of the energy is avoided.
According to one embodiment of the application, shell 2 uses three-layer set, including polyurethane foam insulation layer 14, is used for
Reduce heat exchange smoke chamber 6 and external heat exchange；Insulating sandwich 15 is further reduced heat exchange without heat transfer medium for vacuum；Gold
Belong to plate 16 to be used to support for steel plate.
Setting water inlet header 12 at the top of exhanst gas outlet 3,2 top of shell setting water outlet header at 1 position of smoke inlet
8；A temperature sensor 10 and pressure sensor 11 are respectively mounted in water inlet header 12 and water outlet header 8；In header 12 of intaking
Electrically operated valve 19 is installed, for controlling the entrance of water on water inlet pipe 13.
Temperature sensor 10 in header 12 of intaking acquires inflow temperature T1, and the temperature sensor 10 of water outlet header 8 acquires
Leaving water temperature T2；Intake pressure is P1, discharge pressure P2.
Temperature sensor 10 is 24V PT100 temperature sensor 10；Pressure sensor 11 is 24V YB131 type pressure inverting
Device；Electrically operated valve 19 is DN15 XY-02 DC24V Hydraulic-control valves.
With reference to Fig. 5, control panel 21 is installed in 2 side of shell, display screen 20 is set on control panel 21；Control panel 21
Inside it is embedded AT89S51 chip；DI6 and DI7 pin on AT89S51 chip is electrically connected with temperature sensor 10, and DI4 and DI3 draw
Foot is electrically connected with pressure sensor 11, and DI2 pin is electrically connected with buzzer；Electrically operated valve 19 and pin DO1 and 24v power end connect
It connects, display screen 20 is connect with DO2 and 24v power end.Display screen 20 is for showing the received pressure and temperature letter of AT89S51 chip
Breath.
The working principle of control panel 21 are as follows: the inflow temperature T1 and leaving water temperature of AT89S51 chip real-time reception acquisition
T2, while corresponding intake pressure P1 and P2 is received, when leaving water temperature T2 and discharge pressure P2 is not in normal preset range value
(when other conditions are identical, including inflow temperature and intake pressure, data are carried out by the data acquired in normal heat exchange
It is default) it is interior when, AT89S51 chip controls DO1 power-off, 19 power loss of electrically operated valve, valve event closes water inlet, while buzzer
Pipe alarm, warns staff, and warning message and current water temperature information and pressure information are shown on display screen 20, just
It is found in time in staff.Possible failure is that 17 partial fracture of heat exchanging water pipe or dust stratification are excessive.
Although being described in detail in conjunction with specific embodiment of the attached drawing to invention, should not be construed as to this patent
Protection scope restriction.In range described by claims, those skilled in the art are without creative work
The various modifications and deformation made still belong to the protection scope of this patent.
Claims (10)
1. a kind of efficient waste-heat boiler, it is characterised in that: the smoke inlet including being set to shell one end, and and smoke inlet
Oppose the exhanst gas outlet being arranged；The smoke inlet and exhanst gas outlet are connected to the heat exchange smoke chamber in shell respectively；
The heat exchange smoke chamber includes identical first cavity of structure and the second cavity；First cavity is connected to smoke inlet,
Second cavity is connected to exhanst gas outlet；First cavity and the second cavity are cylindrical, and the first cavity includes two opposition
Outer ring arc panel composition, and four endpoints C1, C2, D1 and the D2 in two outer ring arc panel cross sections constitute rectangle；The arc
The corresponding central angle a of shape plate is 100 ° -120 °；Several heat exchanging water pipes are distributed in first cavity and the second cavity,
The heat exchanging water pipe is distributed in a ring along edge in the first cavity and the second cavity；It is uniformly equipped on the heat exchanging water pipe several
Fin, two pieces of fins being located on same vertical plane constitute one group of H-type fin；Several groups H is welded on each heat exchanging water pipe
Type fin；
Uniformly fill several heat preservation fillers in gap between the heat exchange smoke chamber and shell；The shell includes guarantor from inside to outside
Warm layer, insulating sandwich and metal plate；The uniform filled polyurethane foam of insulating layer, insulating sandwich is vacuum, and metal plate is steel
Plate.
2. efficient waste-heat boiler according to claim 1, it is characterised in that: the heat exchange smoke chamber includes outer ring smoke chamber and interior
Ring smoke chamber；The inner ring smoke chamber includes the identical first inner ring smoke chamber of structure and the second inner ring smoke chamber；The first inner ring smoke chamber
And second pass through two pieces of connecting plates connections between inner ring smoke chamber；Breakpoint A1, A2 on the same cross section of first inner ring smoke chamber,
B1 and B2 constitutes rectangle.
3. efficient waste-heat boiler according to claim 2, it is characterised in that: the outer ring smoke chamber includes the first outer ring smoke chamber
The second outer ring smoke chamber being connected to with the first outer ring smoke chamber.
4. efficient waste-heat boiler according to claim 1, it is characterised in that: setting water inlet collection at the top of the exhanst gas outlet
Water outlet header is arranged in case, cover top portion at smoke inlet position；One is respectively mounted in the water inlet header and water outlet header
Temperature sensor and pressure sensor；Electrically operated valve is installed on water inlet pipe in the water inlet header；The shell side installation
Display screen is arranged on control panel in control panel；AT89S51 chip is embedded in the control panel；On the AT89S51 chip
DI6 and DI7 pin be electrically connected with temperature sensor, DI4 and DI3 pin is electrically connected with pressure sensor, DI2 pin and buzzing
Device electrical connection；The electrically operated valve is connect with pin DO1 and 24v power end, and display screen is connect with DO2 and 24v power end.
5. efficient waste-heat boiler according to claim 4, it is characterised in that: the temperature sensor is 24V PT100 temperature
Spend sensor；Pressure sensor is 24V YB131 type pressure transmitter；Electrically operated valve is DN15 XY-02 DC24V water control valve
Door.
6. efficient waste-heat boiler according to claim 1, it is characterised in that: the outer casing bottom offers at least two and goes out
Grey mouth installs ash hole protection cap at ash hole.
7. a kind of heat preservation filler of efficient waste-heat boiler described in claim 1, which is characterized in that including following quality component:
6-8 parts of slag velveteen, 9-12 parts of inorganic silicate particles, 4-6 parts of polypropylene fibre, 10-12 parts of inorganic phosphate salt particle,
30-36 parts of polyester polyol, 10-20 parts of fire retardant, 10-12 parts of polycarbonate, 8-10 parts of fire clay, heat stabilizer 14-16
Part, 15-17 parts of pollopas, 20-22 parts of granular polystyrene, 10-18 parts of kicker, 4-8 parts of foaming agent, 7-8 parts of curing agent,
80-100 parts of water.
8. a kind of preparation method of efficient waste-heat boiler heat preservation filler as claimed in claim 7 characterized by comprising
S1, polypropylene fibre and water are imported in blender according to weight ratio, stir 10 under 800~1500rpm revolving speed~
20min sequentially adds slag velveteen, polyester polyol, polycarbonate, hair until polypropylene fibre is stirred to reticular structure
Catalyst and fire clay are steeped, and is stirred 1~1.5 hour under 800~1500rpm revolving speed, material is uniformly mixed, is mixed
It is combined a part A；
S2, by inorganic silicate particles, inorganic phosphate salt particle, heat stabilizer, pollopas, granular polystyrene, foaming agent, solidification
Agent and fire retardant weight ratio import in grinder, water are added during the grinding process, and turn in 1200~1500rpm grinding
Under 90 DEG C~120 DEG C speed, temperature grinding temperatures, grinds 1~1.5 hour, obtain mixed component B；
S3, mixed composition A and B are imported in blender, stirs 0.5 at a temperature of 800~1500rpm revolving speed, 60 DEG C~90 DEG C
~1.0 hours, it is uniformly mixed material, obtains mixed composition C；
S4, mixed composition C is put into ion dewatering machine, frequency be 3000~4000HZ under carry out water process 20~
30min removes moisture removal, obtains heat preservation filler.
9. the preparation method of efficient waste-heat boiler heat preservation filler according to claim 8, which is characterized in that the step S2
During the grinding process, 5~6 parts of water are added in every 10~12min of minor tick to middle mixed composition.
10. the preparation method of efficient waste-heat boiler heat preservation filler according to claim 8, which is characterized in that the step
Specifically included in S3: will mixed composition A and B import blender in be stirred, when mixture stir to it is thick when, be added 10
Part higher fatty acids continues to stir.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311392664.2A CN117387094A (en) | 2019-04-25 | 2019-04-25 | Thermal insulation filler for waste heat boiler and preparation method |
| CN201910336832.3A CN110081722B (en) | 2019-04-25 | 2019-04-25 | High-efficient exhaust-heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336832.3A CN110081722B (en) | 2019-04-25 | 2019-04-25 | High-efficient exhaust-heat boiler |
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|---|---|---|---|
| CN202311392664.2A Division CN117387094A (en) | 2019-04-25 | 2019-04-25 | Thermal insulation filler for waste heat boiler and preparation method |
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| CN110081722A true CN110081722A (en) | 2019-08-02 |
| CN110081722B CN110081722B (en) | 2023-12-26 |
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| CN201910336832.3A Active CN110081722B (en) | 2019-04-25 | 2019-04-25 | High-efficient exhaust-heat boiler |
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| CN202311392664.2A Pending CN117387094A (en) | 2019-04-25 | 2019-04-25 | Thermal insulation filler for waste heat boiler and preparation method |
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Also Published As
| Publication number | Publication date |
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| CN110081722B (en) | 2023-12-26 |
| CN117387094A (en) | 2024-01-12 |
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Address after: No. 282, Middle Section of Jiangzhang Avenue, Jiangyou City, Mianyang City, Sichuan Province, 621799 Applicant after: SICHUAN LU HENG ENERGY TECHNOLOGY Co.,Ltd. Address before: 621700 Henghong Metal Technology Co., Ltd., group 8, Yanghe village, Sanhe Town, Jiangyou City, Mianyang City, Sichuan Province Applicant before: SICHUAN LU HENG ENERGY TECHNOLOGY Co.,Ltd. |
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