CN110081722B - High-efficient exhaust-heat boiler - Google Patents
High-efficient exhaust-heat boiler Download PDFInfo
- Publication number
- CN110081722B CN110081722B CN201910336832.3A CN201910336832A CN110081722B CN 110081722 B CN110081722 B CN 110081722B CN 201910336832 A CN201910336832 A CN 201910336832A CN 110081722 B CN110081722 B CN 110081722B
- Authority
- CN
- China
- Prior art keywords
- cavity
- heat exchange
- flue gas
- smoke
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000779 smoke Substances 0.000 claims abstract description 105
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000003546 flue gas Substances 0.000 claims abstract description 84
- 239000002918 waste heat Substances 0.000 claims abstract description 20
- 239000000945 filler Substances 0.000 claims description 29
- 238000004321 preservation Methods 0.000 claims description 22
- 238000009413 insulation Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 8
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 description 20
- 238000000227 grinding Methods 0.000 description 12
- 239000004743 Polypropylene Substances 0.000 description 10
- 239000000835 fiber Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- -1 polypropylene Polymers 0.000 description 10
- 229920001155 polypropylene Polymers 0.000 description 10
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000003063 flame retardant Substances 0.000 description 7
- 239000004088 foaming agent Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 229910052909 inorganic silicate Inorganic materials 0.000 description 7
- 229920006389 polyphenyl polymer Polymers 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229920001807 Urea-formaldehyde Polymers 0.000 description 6
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 6
- 239000004927 clay Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 239000012760 heat stabilizer Substances 0.000 description 6
- 229910052816 inorganic phosphate Inorganic materials 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920000515 polycarbonate Polymers 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 229920005906 polyester polyol Polymers 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000003723 Smelting Methods 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
- 230000009471 action Effects 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 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
- 238000009991 scouring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 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
- 229910021417 amorphous silicon Inorganic materials 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 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
- 230000005484 gravity Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical group [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 1
- 235000019976 tricalcium silicate Nutrition 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 high-efficiency waste heat boiler, which comprises a flue gas inlet arranged at one end of a shell and a flue gas outlet arranged opposite to the flue gas inlet; the flue gas inlet and the flue gas outlet are respectively communicated with a heat exchange flue gas cavity in the shell; the heat exchange smoke cavity comprises a first cavity and a second cavity which are identical in structure; the first cavity is communicated with the flue gas inlet, and the second cavity is communicated with the flue gas outlet; the first cavity and the second cavity are cylindrical, the first cavity comprises two opposite outer ring arc plates, and four endpoints C1, C2, D1 and D2 of the cross section of the two outer ring arc plates form a rectangle; the central angle a corresponding to the arc-shaped plate is 100-120 degrees; a plurality of heat exchange water pipes are distributed in the first cavity and the second cavity, and the heat exchange water pipes are distributed in an annular shape along the inner edges of the first cavity and the second cavity; a plurality of fins are uniformly arranged on the heat exchange water pipe, and two fins positioned on the same vertical surface form a group of H-shaped fins; and a plurality of groups of H-shaped fins are welded on each heat exchange water pipe.
Description
Technical Field
The invention belongs to the technical field of boilers, and particularly relates to a high-efficiency waste heat boiler.
Background
In the smelting production process, the ferrosilicon furnace generates a large amount of high-temperature flue gas with fine dust particles entrained. Production of 1 ton of 75% ferrosilicon, theoretically about 1500-2000 Nm 3 The main component of the furnace gas and the flue gas is N 2 、O 2 、CO 2 、H 2 O is substantially close to the air component because the air excess coefficient is large.
SO in flue gas 2 The amount depends on the amount of sulfur introduced into the feedstock and is primarily determined by the sulfur content of the reducing agent. The sulfur content carried by 1 ton of 75% ferrosilicon raw material is generally about 5-10kg, in which 90% of the raw material is burned into SO 2 Then enters the flue gas, and the sulfur content of the flue gas in the semi-closed electric furnace is generally 0.1-lg/Nm 3 Left and right.
The smoke dust in the smoke mainly consists of two parts, wherein one part is a mechanical blowout object of furnace burden, and the other part is mainly coke powder and coal powder; another part is SiO in silica 2 The gaseous SiO formed by reduction should continue to be reduced to silicon to form ferrosilicon, but in practice, a part of the SiO always escapes from the material surface, is oxidized again to SiO by oxygen in the air to form amorphous superfine particles, is discharged from the furnace by flue gas, the two parts of the flue gas occupy about 10% -20%, the latter occupy about 80% -90%, the dust content of the ferrosilicon depends on the recovery rate of silicon in the smelting process, and under normal conditions, when the recovery rate of silicon is 85% -90%, 1 ton of ferrosilicon generates about 200-300 kg of dust, and when the electric furnace is ignited, the recovery rate of Si is reduced, and the dust content is increased sharply. The average particle size of the dust was 0.1. Mu.m, which was an oxide of amorphous silicon. The true specific gravity is only 2.23g/cm3, the specific surface area is up to 20m2/g, and the specific resistance is 1.3X103 Ω cm.
The heat content of the flue gas is large, and the heat content in 1 ton of 75% ferrosilicon flue gas is equivalent to the input electric quantity, so that the potential energy for recovering waste heat is large, the preheating exchange efficiency of the existing boiler is low, the heat energy can not be converted to the greatest extent, and the heat waste is caused. Besides, the existing boiler pre-heat exchanger is made of metal, when flue gas flows into the exchanger, 7% -15% of flue gas heat is subjected to heat exchange with external air through a metal plate of the exchanger, and the amount of flue gas in ferrosilicon furnace smelting is huge, so that the heat loss is also huge. .
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a high-efficiency waste heat boiler so as to solve the problem of low preheating utilization rate of the existing boiler.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a high-efficiency waste heat boiler comprises a flue gas inlet arranged at one end of a shell and a flue gas outlet arranged opposite to the flue gas inlet; the flue gas inlet and the flue gas outlet are respectively communicated with a heat exchange flue gas cavity in the shell;
the heat exchange smoke cavity comprises a first cavity and a second cavity which are identical in structure; the first cavity is communicated with the flue gas inlet, and the second cavity is communicated with the flue gas outlet; the first cavity and the second cavity are cylindrical, the first cavity comprises two opposite outer ring arc plates, and four endpoints C1, C2, D1 and D2 of the cross section of the two outer ring arc plates form a rectangle; the central angle a corresponding to the arc-shaped plate is 100-120 degrees; a plurality of heat exchange water pipes are distributed in the first cavity and the second cavity, and the heat exchange water pipes are distributed in an annular shape along the inner edges of the first cavity and the second cavity; a plurality of fins are uniformly arranged on the heat exchange water pipe, and two fins positioned on the same vertical surface form a group of H-shaped fins; a plurality of groups of H-shaped fins are welded on each heat exchange water pipe;
the gaps between the heat exchange smoke cavity and the shell are uniformly filled with a plurality of heat preservation fillers; the shell comprises a heat preservation layer, a heat insulation interlayer and a metal plate from inside to outside; the heat preservation layer is evenly filled with polyurethane foam, the heat insulation interlayer is vacuum, and the metal plate is a steel plate.
Preferably, the heat exchange smoke cavity comprises an outer ring smoke cavity and an inner ring smoke cavity; the inner ring smoke cavity comprises a first inner ring smoke cavity and a second inner ring smoke cavity which are identical in structure; the first inner ring smoke cavity and the second inner ring smoke cavity are connected through two connecting plates; the breakpoints A1, A2, B1 and B2 on the same cross section of the first inner ring smoke cavity form a rectangle.
Preferably, the outer annular smoke chamber comprises a first outer annular smoke chamber and a second outer annular smoke chamber in communication with the first outer annular smoke chamber.
Preferably, the top of the flue gas outlet is provided with a water inlet header, and the top of the shell is provided with a water outlet header close to the flue gas inlet; a temperature sensor and a pressure sensor are arranged on the water inlet header and the water outlet header; an electric valve is arranged on a water inlet pipe on the water inlet header; a control panel is arranged on the side surface of the shell, and a display screen is arranged on the control panel; an AT89S51 chip is embedded in the control panel; DI6 and DI7 pins on the AT89S51 chip are electrically connected with the temperature sensor, DI4 and DI3 pins are electrically connected with the pressure sensor, and DI2 pin is electrically connected with the buzzer; the electric valve is connected with the power ends of the pins DO1 and 24v, and the display screen is connected with the power ends of the pins DO2 and 24 v.
Preferably, the temperature sensor is a 24v pt100 temperature sensor; the pressure sensor is a 24V YB131 type pressure transmitter; the electric valve is a DN15 XY-02 DC24V water control valve.
Preferably, the bottom of the shell is provided with at least two ash outlets, and an ash outlet protecting cover is arranged at the ash outlets.
The heat-insulating filler for the efficient waste heat boiler comprises the following components in parts by mass:
6-8 parts of slag cotton velvet, 9-12 parts of inorganic silicate particles, 4-6 parts of polypropylene fibers, 10-12 parts of inorganic phosphate particles, 30-36 parts of polyester polyol, 10-20 parts of flame retardant, 10-12 parts of polycarbonate, 8-10 parts of fire clay, 14-16 parts of heat stabilizer, 15-17 parts of urea-formaldehyde resin, 20-22 parts of polyphenyl particles, 10-18 parts of foaming catalyst, 4-8 parts of foaming agent, 7-8 parts of curing agent and 80-100 parts of water.
A preparation method of a high-efficiency waste heat boiler heat preservation filler comprises the following steps:
s1, introducing polypropylene fibers and water into a stirrer according to the weight ratio, stirring for 10-20 min at the rotation speed of 800-1500 rpm until the polypropylene fibers are stirred to a net structure, sequentially adding slag cotton velvet, polyester polyol, polycarbonate, a foaming catalyst and fire clay, and stirring for 1-1.5 h at the rotation speed of 800-1500 rpm to uniformly mix materials to obtain a mixed component A;
s2, introducing inorganic silicate particles, inorganic phosphate particles, a heat stabilizer, urea-formaldehyde resin, polyphenyl particles, a foaming agent, a curing agent and a flame retardant into a grinding machine according to weight ratio, adding water in the grinding process, and grinding for 1-1.5 hours at the grinding rotation speed of 1200-1500 rpm and the grinding temperature of 90-120 ℃ to obtain a mixed component B;
s3, introducing the mixed components A and B into a stirrer, stirring for 0.5-1.0 hour at the temperature of 60-90 ℃ at the rotation speed of 800-1500 rpm, and uniformly mixing the materials to obtain a mixed component C;
s4, placing the mixed component C into an ion dehydration machine, and dehydrating at the frequency of 3000-4000 HZ for 20-30 min to remove water and obtain the heat-insulating filler.
Preferably, 5 to 6 parts of water are added to the mixed components in the step S2 at intervals of 10 to 12 minutes in the grinding process.
Preferably, the step S3 specifically includes: the mixed components A and B are introduced into a stirrer to be stirred, and when the mixture is stirred to be sticky, 10 parts of higher fatty acid is added to continue stirring
The efficient waste heat boiler provided by the invention has the following beneficial effects:
according to the invention, through the circular distribution of the arc-shaped heat exchange smoke cavity and the heat exchange water pipe and the matching of the H-shaped fins, when the flue gas flow enters from the flue gas inlet, the arrangement mode of the heat exchange pipelines is circular and is not conventional (regular square), and the flue gas flows along a plurality of directions under the turbulent flow action of the H-shaped fin group and fills the whole heat exchange smoke cavity; in addition, after the smoke impacts the inner wall of the heat exchange smoke cavity, the smoke is refracted, the refraction angle is multi-directional and multidirectional, and the reflected smoke airflow impacts the heat exchange water pipe again to exchange heat with the heat exchange water pipe. The heat exchange angle and the heat exchange area of the heat exchange water pipe and the smoke are increased under the matching of the annular distribution of the heat exchange smoke cavity and the heat exchange water pipe and the H-shaped fins, so that the heat exchange efficiency is increased, and the waste of energy sources is avoided.
The heat-insulating filler has the characteristics of high temperature resistance, good heat insulation effect, high heat preservation rate, fire resistance and stable chemical property, can effectively reduce the heat exchange between waste heat and the outside, increases the heat preservation effect inside the heat exchanger, and further increases the heat exchange efficiency of the heat exchanger.
Drawings
Fig. 1 is a cross-sectional view of a high efficiency waste heat boiler.
Fig. 2 is a cross-sectional view of a high efficiency exhaust heat boiler including an inner annular smoke chamber.
Fig. 3 is a structural diagram of an inner annular smoke chamber and an outer annular smoke chamber of the efficient waste heat boiler.
Fig. 4 is a structural diagram of the efficient waste heat boiler.
Fig. 5 is an internal circuit diagram of a control panel of the efficient waste heat boiler.
Fig. 6 and 7 are structure diagrams of the heat exchange water pipe installation fin of the efficient waste heat boiler.
1, a flue gas inlet; 2. a housing; 3. a flue gas outlet; 4. a support column; 51. an outer annular smoke chamber; 52. an inner annular smoke chamber; 6. a heat exchange smoke cavity; 7. an ash hole protecting cover; 8. a water outlet header; 9. a water outlet; 10. a temperature sensor; 11. a pressure sensor; 12. a water inlet header; 13. a water inlet pipe; 14. a heat preservation layer; 15. a heat insulating interlayer; 16. a metal plate; 17. a heat exchange water pipe; 18. a connecting plate; 19. an electric valve; 20. a display screen; 21. a control panel; 22. fins; 23. thermal insulation filler; 24. a first cavity; 25. a second cavity; 63. an outer ring arcuate plate; 64. a first inner annular smoke chamber; 65. a second inner annular smoke chamber; 66. a first outer annular smoke chamber; 67. and a second outer annular smoke chamber.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
According to one embodiment of the present application, referring to fig. 1 to 7, the efficient waste heat boiler of the present embodiment includes a flue gas inlet 1 disposed at one end of a housing 2, and a flue gas outlet 3 disposed opposite to the flue gas inlet 1; the flue gas inlet 1 and the flue gas outlet 3 are respectively communicated with a heat exchange flue gas cavity 6 in the shell 2.
Four support columns 4 are arranged around the shell 2 and used for supporting the shell 2; two ash outlets are formed in the bottom of the shell 2 and used for cleaning accumulated ash in the heat exchange smoke cavity 6 at fixed time, and an ash outlet protection cover 7 is arranged at the ash outlet, so that the ash outlets are embedded (in interference fit) when the accumulated ash is not required to be cleaned.
The heat exchange smoke chamber 6 comprises a first chamber 24 and a second chamber 25 which are identical in structure, the first chamber 24 is communicated with the smoke inlet 1, and the second chamber 25 is communicated with the smoke outlet 3.
The first cavity 24 and the second cavity 25 are both cylindrical, the first cavity 24 comprises two opposite outer ring arc plates 63, four endpoints C1, C2, D1 and D2 of the cross section of the two outer ring arc plates 63 form a rectangle, and the central angle a corresponding to the arc plates is 100 degrees to 120 degrees, preferably 120 degrees.
A plurality of heat exchange water pipes 17 are distributed in the first cavity 24 and the second cavity 25, and the heat exchange water pipes 17 are distributed in a ring shape along the inner edges of the first cavity 24 and the second cavity 25. Compared with the traditional rectangular distribution, the annular distribution is more matched with the shape of the heat exchange smoke cavity 6, besides, the air flow channels formed between the heat exchange water pipes 17 in the annular distribution are more complex, the air flow channels are more, the flowing time of air flow can be increased, the direction of air impacting the heat exchange water pipes 17 is increased, and compared with the direction-one impact, the heat exchange water pipes 17 can be impacted in multiple directions, the heat exchange contact area of the heat exchange water pipes 17 is increased, and the heat exchange efficiency is increased.
Referring to fig. 6 and 7, a plurality of fins 22 are uniformly distributed on the heat exchange water pipe 17, and two fins 22 positioned on the same vertical line are welded on the heat exchange water pipe 17. Two fins 22 are welded on the heat exchange water pipe 17 to form H-shaped fins 22, a plurality of H-shaped fins 22 are arranged on each heat exchange water pipe 17, a flue gas channel is formed between the fins 22, the fins 22 and the airflow flow direction are parallel, ash particles are not deposited, the fins 22 are slightly disturbed by the scouring of the flue gas, the direct scouring angle of the flue gas to the heat exchange water pipe 17 is changed, the abrasion is reduced, the self-ash removal is realized, the flue gas resistance is reduced, and the accumulated ash attached to the heat exchange water pipe 17 is reduced, so that the heat exchange efficiency of the heat exchange water pipe 17 is indirectly increased.
The H-shaped fins 22 may be welded to a single heat exchange water pipe 17, or may be welded to a plurality of heat exchange water pipes 17, and fig. 7 illustrates that the H-shaped fins 22 are welded to two heat exchange water pipes 17 according to practical situations.
The annular distribution of the heat exchange smoke chamber 6 and the heat exchange water pipe 17 are matched with the H-shaped fins 22, when the flue gas flow enters from the flue gas inlet, the arrangement mode of the heat exchange pipelines is annular and is not the conventional arrangement (regular square), and the flue gas flows along a plurality of directions under the turbulent flow action of the H-shaped fins 22 group and fills the whole heat exchange smoke chamber 6; in addition, after the smoke impacts the inner wall of the heat exchange smoke cavity 6, the smoke is refracted, the refraction angle is multiple and multidirectional, and the reflected smoke gas flow impacts the heat exchange water pipe 17 again to exchange heat with the heat exchange water pipe 17. Namely, under the matching of the annular distribution of the heat exchange smoke cavity 6 and the heat exchange water pipe 17 and the H-shaped fins 22, the heat exchange angle and the heat exchange area of the heat exchange water pipe 17 and smoke are increased, the heat exchange efficiency is increased, and the waste of energy sources is avoided.
According to one embodiment of the application, the gap between the heat exchange smoke chamber 6 and the shell 2 is uniformly filled with a plurality of heat preservation fillers 23; the shell 2 comprises a heat preservation layer 14, a heat insulation interlayer 15 and a metal plate 16 from inside to outside; the heat preservation layer 14 is uniformly filled with polyurethane foam, the heat insulation interlayer 15 is vacuum, and the metal plate 16 is a steel plate.
The heat preservation filler comprises the following components in parts by mass:
6-8 parts of slag cotton velvet, 9-12 parts of inorganic silicate particles, 4-6 parts of polypropylene fibers, 10-12 parts of inorganic phosphate particles, 30-36 parts of polyester polyol, 10-20 parts of flame retardant, 10-12 parts of polycarbonate, 8-10 parts of fire clay, 14-16 parts of heat stabilizer, 15-17 parts of urea-formaldehyde resin, 20-22 parts of polyphenyl particles, 10-18 parts of foaming catalyst, 4-8 parts of foaming agent, 7-8 parts of curing agent and 80-100 parts of water.
Wherein, slag cotton velvet can increase thermal insulation resistance, reduce heat transfer coefficient, reduce heat and the outside heat exchange of heat exchange cigarette chamber 6, increase the heat preservation effect.
The refractory clay is bauxite with high temperature resistance, and the temperature of flue gas generated in the smelting process of the ferrosilicon furnace is higher than 500 ℃, so that the refractory clay which can be used as a refractory material is selected, and the refractory temperature of the heat-insulating filler is increased.
The inorganic silicate particles are 12 parts of dicalcium silicate or 10 parts of tricalcium silicate particles, the inorganic phosphate is orthophosphate, and the inorganic silicate and the inorganic phosphate are selected as basic materials of the filler, so that the inorganic silicate particles still have higher hardness even at the temperature higher than 600 ℃, have a certain heat preservation function, are applied to gaps between the heat exchange smoke chamber 6 and the shell 2, and are very fit.
The polypropylene fiber has small density, light weight and high resistivity (7 multiplied by 10) 19 Omega cm), small coefficient of thermal conductivity, and can haveAnd (5) effective heat preservation. Besides, the heat-insulating filler disclosed by the invention utilizes the characteristics of good dispersion and high strength of the polypropylene fiber, is taken as a primary material to be put into a first process, and when the heat-insulating filler is stirred to a net structure, other materials are added, so that the heat-insulating filler is convenient to mix with other materials by utilizing the good dispersion characteristic of the polypropylene fiber, and the stirring effect is improved.
The polyester polyol has better compatibility, can be used as an adhesive of the heat-insulating filler, and increases the adhesive property of the heat-insulating filler.
The polycarbonate mainly utilizes the characteristics of heat resistance, flame retardance and wear resistance to increase the high temperature resistance and the wear resistance of the heat-insulating filler.
The urea-formaldehyde resin has the advantages that the urea-formaldehyde resin contains polar oxygen atoms in the molecular structure, has stronger adhesive force to the object plane, and by utilizing the characteristic, the heat-insulating filler has certain adhesive capacity and can be adhered to the outer surface of the heat exchange smoke cavity 6, so that the heat-insulating filler can directly act on the object plane, and the heat-insulating effect of the filler is improved.
The polyphenyl granules mainly use the expansion and heat preservation functions, and the expansion functions of the polyphenyl granules enable the whole heat preservation filler to have certain expansion and loosening characteristics, so that the whole heat exchange smoke cavity 6 and the shell 2 are more easily filled with gaps; and the heat loss is reduced by utilizing the heat preservation function.
The flame retardant, such as silicon flame retardant, has low ignition point of some polymer materials, such as polyphenyl particles and polypropylene fibers, so that the addition of proper amount of flame retardant can endow inflammable polymer with flame retardancy.
The heat stabilizer comprises a mixture consisting of a calcium-zinc stabilizer and a rare earth calcium-zinc stabilizer, wherein the mass ratio of the calcium-zinc stabilizer to the rare earth calcium-zinc stabilizer is 4:3, and the heat stabilizer is used for preventing or delaying the heat aging of the mixed material.
The physical foaming agent is selected as the foaming agent, so that the loose property of the heat-insulating filler is improved, and the heat-insulating filler is easier to fill the gap between the whole heat exchange smoke cavity 6 and the shell 2.
The function of the foaming catalyst is the same as that of the foaming agent.
And the curing agent is used for accelerating the curing of the heat-insulating filler.
According to one embodiment of the present application, a method for preparing a heat insulating filler includes:
s1, introducing polypropylene fibers and water into a stirrer according to the weight ratio, stirring for 10-20 min at the rotation speed of 800-1500 rpm until the polypropylene fibers are stirred to a net structure, sequentially adding slag cotton velvet, polyester polyol, polycarbonate, a foaming catalyst and fire clay, and stirring for 1-1.5 h at the rotation speed of 800-1500 rpm to uniformly mix materials to obtain a mixed component A;
s2, introducing inorganic silicate particles, inorganic phosphate particles, a heat stabilizer, urea-formaldehyde resin, polyphenyl particles, a foaming agent, a curing agent and a flame retardant into a grinding machine according to weight ratio, adding water in the grinding process, and grinding for 1-1.5 hours at the grinding rotation speed of 1200-1500 rpm and the grinding temperature of 90-120 ℃ to obtain a mixed component B;
s3, introducing the mixed components A and B into a stirrer, stirring for 0.5-1.0 hour at the temperature of 60-90 ℃ at the rotation speed of 800-1500 rpm, and uniformly mixing the materials to obtain a mixed component C;
s4, placing the mixed component C into an ion dehydration machine, and dehydrating at the frequency of 3000-4000 HZ for 20-30 min to remove water and obtain the heat-insulating filler.
In the step S2, 5 to 6 parts of water are added at intervals of 10 to 12 minutes each time in the grinding process of the mixed components.
The step S3 specifically includes: the mixed components A and B were introduced into a stirrer to be stirred, and when the mixture was stirred to be viscous, 10 parts of higher fatty acid was added to continue stirring.
Wherein the higher fatty acid is branched higher fatty acid, which has high thermal stability;
and S4, alternatively, placing the mixed component C into a baking chamber, and baking at 150-200 ℃ for 40-50 min to obtain the heat-insulating filler.
Because the temperature of the flue gas is high, in order to avoid or reduce the heat exchange between a considerable part of the heat of the flue gas and the outside air through the heat exchanger shell, the heat-insulating filler is filled in the gap between the heat exchange flue gas cavity 6 and the shell 2, so that the heat loss is reduced.
The heat-insulating filler has the characteristics of high temperature resistance, good heat insulation effect, high heat preservation rate, fire resistance and stable chemical property, can effectively reduce heat exchange between waste heat and the outside, increases the heat preservation effect in the heat exchanger, and further increases the heat exchange efficiency of the heat exchanger.
The heat exchange smoke chamber 6 may also be a structure of an outer ring smoke chamber 51 and an inner ring smoke chamber 52 according to an embodiment of the present application.
The inner ring smoke chamber 52 comprises a first inner ring smoke chamber 64 and a second inner ring smoke chamber 65 which have the same structure, and the first inner ring smoke chamber 64 and the second inner ring smoke chamber 65 are connected through two connecting plates 18; the breakpoints A1, A2, B1 and B2 of the same cross section of the first inner annular chamber 64 form a rectangle.
The outer annular smoke chamber 51 comprises a first outer annular smoke chamber 66 and a second outer annular smoke chamber 67 communicated with the first outer annular smoke chamber 66, and the outer annular smoke chamber 51 is annular and is formed by the space between the inner annular smoke chamber 52 and the heat exchange smoke chamber 6.
The flue gas enters from the flue gas inlet 1, one part of the flue gas enters the inner ring flue gas cavity 52, and the other part of the flue gas enters the outer ring flue gas cavity 51.
The gas entering the outer ring smoke cavity 51 flows along the impact on the outer edge of the inner ring smoke cavity 52 and the inner edge of the outer ring smoke cavity 51, and changes the flowing direction, so that the contact area of the heat exchange water pipe 17 is increased; the flue gas continues to flow, impacts the connecting plate 18 and is reflected, and the reflected flue gas forms local vortex under the turbulent flow action of the H-shaped fins 22, so that the flue gas flows along multiple directions, more flue gas is promoted to reach the inner edge of the first outer ring flue gas cavity 66, dead angles of the first outer ring flue gas cavity 66 are reduced, and the flue gas heat energy is utilized to the greatest extent. The arc-shaped structures of the second inner ring smoke cavity 65 and the first inner ring smoke cavity 64 and the H-shaped fins 22 are utilized to change the direction of regularly entering smoke gas flow, and the direction is irregular and changeable, so that the flow time of the smoke gas in the outer ring smoke cavity 51 can be effectively increased, the contact area of the heat exchange water pipe 17 and the smoke gas is increased, the heat exchange efficiency is increased, and the energy loss is reduced.
The gas entering the inner annular smoke chamber 52 flows along a plurality of directions under the turbulent flow action of the H-shaped fin 22 group in the annular heat exchange pipeline and fills the whole second inner annular smoke chamber 65; when the flue gas enters the first inner ring flue gas cavity 64, because the angle of the flue gas entering the first inner ring flue gas cavity 64 is provided with a plurality of angles, after the flue gas impacts the connecting plate 18, the reflection angle of the flue gas is also provided with a plurality of angles, so that the flue gas can reach the inner edge part (mainly inner edge dead angle) of the first inner ring flue gas cavity 64, each heat exchange water pipe 17 along the inner edge of the first inner ring flue gas cavity 64 can be ensured to fully perform direct heat exchange with the flue gas, and the heat exchange efficiency of the flue gas is increased.
After the smoke impacts the inner wall of the smoke cavity, the smoke is refracted, the refraction angle is multiple and multidirectional, and the reflected smoke airflow impacts the heat exchange water pipe 17 again to exchange heat with the heat exchange water pipe 17. Namely, under the matching of the annular distribution of the heat exchange smoke cavity 6 and the heat exchange water pipe 17 and the H-shaped fins 22, the heat exchange angle and the heat exchange area of the heat exchange water pipe 17 and smoke are increased, the heat exchange efficiency is increased, and the waste of energy sources is avoided.
According to one embodiment of the application, the housing 2 adopts a three-layer arrangement, comprising a polyurethane foam insulation layer 14 for reducing heat exchange between the heat exchanging smoke chamber 6 and the outside; the heat insulating interlayer 15 is vacuum, has no heat transfer medium, and further reduces heat exchange; the metal plate 16 is a steel plate for support.
The top of the flue gas outlet 3 is provided with a water inlet header 12, and the top of the shell 2 is provided with a water outlet header 8 near the flue gas inlet 1; a temperature sensor 10 and a pressure sensor 11 are arranged on the water inlet header 12 and the water outlet header 8; an electric valve 19 is arranged on the water inlet pipe 13 on the water inlet header 12 and is used for controlling the water inlet.
The temperature sensor 10 on the water inlet header 12 collects water inlet temperature T1, and the temperature sensor 10 of the water outlet header 8 collects water outlet temperature T2; the water inlet pressure is P1, and the water outlet pressure is P2.
The temperature sensor 10 is a 24v pt100 temperature sensor 10; the pressure sensor 11 is a 24V YB131 type pressure transmitter; the electric valve 19 is a DN15 XY-02 DC24V water control valve.
Referring to fig. 5, a control panel 21 is installed at a side of the housing 2, and a display 20 is provided on the control panel 21; an AT89S51 chip is embedded in the control panel 21; DI6 and DI7 pins on the AT89S51 chip are electrically connected with the temperature sensor 10, DI4 and DI3 pins are electrically connected with the pressure sensor 11, and DI2 pin is electrically connected with the buzzer; the electric valve 19 is connected with the power ends of the pins DO1 and 24v, and the display screen 20 is connected with the power ends of the pins DO2 and 24 v. The display 20 is used for displaying pressure and temperature information received by the AT89S51 chip.
The control panel 21 operates on the principle that: the AT89S51 chip receives the collected water inlet temperature T1 and the collected water outlet temperature T2 in real time, and simultaneously receives the corresponding water inlet pressure P1 and P2, when the water outlet temperature T2 and the water outlet pressure P2 are not in a normal preset range value (other conditions are the same, the water inlet temperature and the water inlet pressure are included, the data collected during normal heat exchange are preset), the AT89S51 chip controls the DO1 to be powered off, the electric valve 19 is powered off, the valve acts, water inlet is closed, a buzzer sounds to alarm, the staff is warned, and alarm information, current water temperature information and pressure information are displayed on the display screen 20, so that the staff can find conveniently in time. A possible failure is that the heat exchange water pipe 17 is locally broken or excessively deposited.
Although specific embodiments of the invention have been described in detail with reference to the accompanying drawings, it should not be construed as limiting the scope of protection of the present patent. Various modifications and variations which may be made by those skilled in the art without the creative effort are within the scope of the patent described in the claims.
Claims (6)
1. The utility model provides a high-efficient exhaust-heat boiler which characterized in that: comprises a smoke inlet arranged at one end of the shell and a smoke outlet arranged opposite to the smoke inlet; the flue gas inlet and the flue gas outlet are respectively communicated with a heat exchange flue gas cavity in the shell;
the heat exchange smoke cavity comprises a first cavity and a second cavity which are identical in structure; the first cavity is communicated with the flue gas inlet, and the second cavity is communicated with the flue gas outlet; the first cavity and the second cavity are cylindrical, the first cavity comprises two opposite outer ring arc plates, and four endpoints C1, C2, D1 and D2 of the cross section of the two outer ring arc plates form a rectangle; the central angle a corresponding to the arc-shaped plate is 100-120 degrees; the second cavity comprises two opposite outer ring arc plates, and four endpoints C2, C3, D3 and D2 of the cross section of the two outer ring arc plates form a rectangle; the cross sections of the outer annular arc plates of the first cavity and the second cavity are intersected at end points C2 and D2; a plurality of heat exchange water pipes are distributed in the first cavity and the second cavity, and the heat exchange water pipes are distributed in an annular shape along the axial direction of the cylinder body in the first cavity and the second cavity; a plurality of fins are uniformly arranged on the heat exchange water pipe, and two fins positioned on the same vertical plane form a group of H-shaped fins; a plurality of groups of H-shaped fins are welded on each heat exchange water pipe;
a plurality of heat preservation fillers are uniformly filled in the gap between the heat exchange smoke cavity and the shell; the shell comprises a heat preservation layer, a heat insulation interlayer and a metal plate from inside to outside; the heat preservation layer is evenly filled with polyurethane foam, the heat insulation interlayer is vacuum, and the metal plate is a steel plate.
2. The efficient waste heat boiler of claim 1, wherein: the heat exchange smoke cavity comprises an outer ring smoke cavity and an inner ring smoke cavity; the inner ring smoke cavity comprises a first inner ring smoke cavity and a second inner ring smoke cavity which are identical in structure; the first inner ring smoke cavity and the second inner ring smoke cavity are connected through two connecting plates; breakpoints A1, A2, B1 and B2 on the same cross section of the first inner ring smoke cavity form a rectangle.
3. The efficient waste heat boiler according to claim 2, wherein: the outer ring smoke cavity comprises a first outer ring smoke cavity and a second outer ring smoke cavity communicated with the first outer ring smoke cavity.
4. The efficient waste heat boiler of claim 1, wherein: the top of the flue gas outlet is provided with a water inlet header, and the top of the shell is provided with a water outlet header close to the flue gas inlet; a temperature sensor and a pressure sensor are arranged on the water inlet header and the water outlet header; an electric valve is arranged on a water inlet pipe on the water inlet header; the side face of the shell is provided with a control panel, and a display screen is arranged on the control panel; an AT89S51 chip is embedded in the control panel; DI6 and DI7 pins on the AT89S51 chip are electrically connected with the temperature sensor, DI4 and DI3 pins are electrically connected with the pressure sensor, and DI2 pin is electrically connected with the buzzer; the electric valve is connected with the power ends of the pins DO1 and 24v, and the display screen is connected with the power ends of the pins DO2 and 24 v.
5. The efficient exhaust-heat boiler according to claim 4, wherein: the temperature sensor is a 24V PT100 temperature sensor; the pressure sensor is a 24V YB131 type pressure transmitter; the electric valve is a DN15 XY-02 DC24V water control valve.
6. The efficient waste heat boiler of claim 1, wherein: at least two ash outlets are formed in the bottom of the shell, and an ash outlet protection cover is arranged at each ash outlet.
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 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311392664.2A Division CN117387094A (en) | 2019-04-25 | 2019-04-25 | Thermal insulation filler for waste heat boiler and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110081722A CN110081722A (en) | 2019-08-02 |
| CN110081722B true CN110081722B (en) | 2023-12-26 |
Family
ID=67416618
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311392664.2A Pending CN117387094A (en) | 2019-04-25 | 2019-04-25 | Thermal insulation filler for waste heat boiler and preparation method |
| CN201910336832.3A Active CN110081722B (en) | 2019-04-25 | 2019-04-25 | High-efficient exhaust-heat boiler |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311392664.2A Pending CN117387094A (en) | 2019-04-25 | 2019-04-25 | Thermal insulation filler for waste heat boiler and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN117387094A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584968A (en) * | 1985-07-22 | 1986-04-29 | Thormocatalytic Corporation | Cylindrical boiler |
| CN2227301Y (en) * | 1995-08-04 | 1996-05-15 | 吴富贵 | Atomospheric energy-saving boiler |
| CN2522744Y (en) * | 2001-12-24 | 2002-11-27 | 郭祥山 | Vertical furnace lining-tabe integrated energy-saving boiler |
| JP2005337515A (en) * | 2004-05-24 | 2005-12-08 | Takuma Co Ltd | Shell-and-tube once-through boiler |
| CN200968789Y (en) * | 2006-11-08 | 2007-10-31 | 中国恩菲工程技术有限公司 | High efficiency dish-ring type heat exchanger |
| CN202304537U (en) * | 2011-08-25 | 2012-07-04 | 青岛凯能锅炉设备有限公司 | Dual-H-type finned tube |
| CN103438472A (en) * | 2013-09-03 | 2013-12-11 | 哈尔滨工程大学 | Waste heat recovery energy-saving device applicable to boiler chimney and chimney comprising same |
| CN203869074U (en) * | 2014-06-05 | 2014-10-08 | 新疆晨光天然色素有限公司 | Device for recovering waste heat of gas boiler |
| KR101611096B1 (en) * | 2014-11-17 | 2016-04-08 | 현대자동차주식회사 | Heat exchanger for exhaust gas |
| CN109612283A (en) * | 2018-11-26 | 2019-04-12 | 四川陆亨能源科技有限公司 | A kind of ferrosilicon mineral hot furnace waste heat exchange system |
| CN209978638U (en) * | 2019-04-25 | 2020-01-21 | 四川陆亨能源科技有限公司 | High-efficient exhaust-heat boiler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012041344A1 (en) * | 2010-09-30 | 2012-04-05 | Haldor Topsoe A/S | Waste heat boiler |
-
2019
- 2019-04-25 CN CN202311392664.2A patent/CN117387094A/en active Pending
- 2019-04-25 CN CN201910336832.3A patent/CN110081722B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584968A (en) * | 1985-07-22 | 1986-04-29 | Thormocatalytic Corporation | Cylindrical boiler |
| CN2227301Y (en) * | 1995-08-04 | 1996-05-15 | 吴富贵 | Atomospheric energy-saving boiler |
| CN2522744Y (en) * | 2001-12-24 | 2002-11-27 | 郭祥山 | Vertical furnace lining-tabe integrated energy-saving boiler |
| JP2005337515A (en) * | 2004-05-24 | 2005-12-08 | Takuma Co Ltd | Shell-and-tube once-through boiler |
| CN200968789Y (en) * | 2006-11-08 | 2007-10-31 | 中国恩菲工程技术有限公司 | High efficiency dish-ring type heat exchanger |
| CN202304537U (en) * | 2011-08-25 | 2012-07-04 | 青岛凯能锅炉设备有限公司 | Dual-H-type finned tube |
| CN103438472A (en) * | 2013-09-03 | 2013-12-11 | 哈尔滨工程大学 | Waste heat recovery energy-saving device applicable to boiler chimney and chimney comprising same |
| CN203869074U (en) * | 2014-06-05 | 2014-10-08 | 新疆晨光天然色素有限公司 | Device for recovering waste heat of gas boiler |
| KR101611096B1 (en) * | 2014-11-17 | 2016-04-08 | 현대자동차주식회사 | Heat exchanger for exhaust gas |
| CN109612283A (en) * | 2018-11-26 | 2019-04-12 | 四川陆亨能源科技有限公司 | A kind of ferrosilicon mineral hot furnace waste heat exchange system |
| CN209978638U (en) * | 2019-04-25 | 2020-01-21 | 四川陆亨能源科技有限公司 | High-efficient exhaust-heat boiler |
Non-Patent Citations (1)
| Title |
|---|
| 废热锅炉的结构设计;程孝福;;压力容器(第06期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110081722A (en) | 2019-08-02 |
| CN117387094A (en) | 2024-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105541313B (en) | A kind of preparation method of nano heat insulating material and nano-thermal-insulating plate | |
| EP1127032B1 (en) | Man-made vitreous fibre products for use in thermal insulation, and their production | |
| CN108571108B (en) | Method for manufacturing thermal insulation wallboard | |
| CN104631634B (en) | A kind of powder core material vacuum heat-insulation board for building and preparation method thereof | |
| CN105502915B (en) | Utilize the production technology of industrial residue production inorganic heat insulating fiber material | |
| CN102765955A (en) | Fireproof material and preparation method thereof | |
| CN103787638A (en) | Building outer wall fire-proof heat-insulating material and preparation method thereof | |
| CN103922791A (en) | Ultra-light vitrified foamed ceramic and preparation method thereof | |
| CN110081722B (en) | High-efficient exhaust-heat boiler | |
| CN209978638U (en) | High-efficient exhaust-heat boiler | |
| CN107056313A (en) | A kind of cement rotary kiln stove castable refractory | |
| CN201288197Y (en) | Blast furnace cyclone dust extractor | |
| CN106276905B (en) | The device and method of acetylene stones sensible heat recycling | |
| CN204894228U (en) | A cooling device for ready mixed mortar | |
| JP5625062B2 (en) | Reduced iron manufacturing apparatus and manufacturing method thereof | |
| CN108383535A (en) | A kind of preparation method of light flyash refratory insulating brick | |
| CN208022714U (en) | A kind of sic smelting furnace | |
| CN207091449U (en) | A kind of integrated poured blast-furnace hot-air pipeline | |
| CN218097218U (en) | Metallurgical furnace with lining made of waste magnesia-olive stone powder material | |
| CN106546098A (en) | A kind of vanadium-nitrogen alloy sintering kiln | |
| CN112321958B (en) | Light-gathering heat-insulating plastic concrete for energy conservation of gasification furnace and power station boiler and production process thereof | |
| CN203360373U (en) | Clean heat recovery coke oven bridge pipe | |
| CN214747399U (en) | Cement manufacture waste heat recovery device | |
| CN204100760U (en) | A kind of device that can reduce chute and scab | |
| CN1092601C (en) | Method and equipment for producing blast-furnace phosphoric acid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
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. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |