CN110081756A - A kind of H-type fin economizer - Google Patents
A kind of H-type fin economizer Download PDFInfo
- Publication number
- CN110081756A CN110081756A CN201910336952.3A CN201910336952A CN110081756A CN 110081756 A CN110081756 A CN 110081756A CN 201910336952 A CN201910336952 A CN 201910336952A CN 110081756 A CN110081756 A CN 110081756A
- Authority
- CN
- China
- Prior art keywords
- smoke chamber
- outer ring
- inner ring
- type fin
- arc panel
- 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.)
- Granted
Links
- 239000000779 smoke Substances 0.000 claims abstract description 112
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000007789 gas Substances 0.000 claims description 20
- 239000003546 flue gas Substances 0.000 claims description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 2
- 239000011496 polyurethane foam Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 12
- 238000013517 stratification Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 230000009471 action Effects 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
- 238000011084 recovery Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000005611 electricity Effects 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
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 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
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- 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)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Environmental & Geological Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of H-type fin economizers, 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；Water outlet header is arranged in setting water inlet header at the top of exhanst gas outlet, cover top portion at smoke inlet position；A temperature sensor and pressure sensor are respectively mounted in water inlet header and water outlet header；Electrically operated valve is installed on water inlet pipe in water inlet header；Shell side installs control panel, and display screen is arranged on control panel；AT89S51 chip is embedded in control panel；DI6 and DI7 pin on AT89S51 chip is electrically connected with temperature sensor, DI4 and DI3 pin is electrically connected with pressure sensor, and DI2 pin is electrically connected with buzzer；Electrically operated valve is connect with pin DO1 and 24v power end, and display screen is connect with DO2 and 24v power end.
Description
Technical field
The invention belongs to the technical fields of economizer, and in particular to a kind of H-type fin economizer.
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 economizer exchange efficiency is low, cannot to the greatest extent convert thermal energy, causes the waste of heat.
Except this, existing economizer cannot be found in time when breaking down, and lead to thermal loss.
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 H-type fin economizer is provided, to solve
The problem of cannot being found in time when existing boiler afterheat exchanger exchange efficiency is low and breaks down.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of H-type fin economizer 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；
Water outlet header is arranged in setting water inlet header at the top of exhanst gas outlet, cover top portion at smoke inlet position；Water inlet
A temperature sensor and pressure sensor are respectively mounted in header and water outlet header；It is installed on water inlet pipe in water inlet header electronic
Valve；Shell side installs control panel, and display screen is arranged on control panel；AT89S51 chip is embedded in control panel；
DI6 and DI7 pin on AT89S51 chip is electrically connected with temperature sensor, DI4 and DI3 pin is electrically connected with pressure sensor,
DI2 pin is electrically connected with buzzer；Electrically operated valve is connect with pin DO1 and 24v power end, display screen and DO2 and 24v power end
Connection；
Heat exchange smoke chamber includes inner ring smoke chamber and the outer ring smoke chamber around the setting of inner ring smoke chamber；Positioned at inner ring smoke chamber and outer ring cigarette
It is intracavitary to be evenly distributed with several heat exchanging water pipes；Inner ring smoke chamber includes the first inner ring smoke chamber and the second inner ring smoke chamber；Outer ring smoke chamber packet
The the second outer ring smoke chamber for including the first outer ring smoke chamber and being connected to the first outer ring smoke chamber；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-type fin is welded on each heat exchanging water pipe
Piece.
Preferably, the first inner ring smoke chamber includes two the first inner ring arc panels, the first inner ring arc panel upper extreme point A3 and A4
Line is parallel to B3 and B4 line, and the second inner ring arc panel upper extreme point A1 and A2 line are parallel to B1 and B2 line；
First outer ring smoke chamber includes two outer ring arc panels, between two outer ring arc panels and two the first inner ring arc panels
The annular space of composition is the first outer ring smoke chamber；Second outer ring smoke chamber includes two outer ring arc panels, two outer ring arc panels with
The annular space constituted between two the second inner ring arc panels is the second outer ring smoke chamber；Ipsilateral outer ring arc panel upper extreme point C1, C2
It is located along the same line with C3, D1, D2 and D3 are located along the same line, and endpoint C1, C2, C3 line and D1, D2, D3 line are flat
Row；Two first inner ring arc panel upper extreme points A3 and B3 extend outwardly one piece of flow distribution plate, and flow distribution plate extends to the second outer ring cigarette
The outlet of second outer ring smoke chamber is simultaneously divided into two by chamber.
Preferably, the first inner ring arc panel and the corresponding central angle a of the second inner ring arc panel are 100 ° -120 °.
Preferably, temperature sensor is 24V PT100 temperature sensor；Pressure sensor is the change of 24V YB131 type pressure
Send device；Electrically operated valve is DN15XY-02DC24V Hydraulic-control valves.
Preferably, outer casing bottom offers at least two ash holes, installs ash hole protection cap at ash hole.
Preferably, shell includes insulating layer, insulating sandwich and metal plate from inside to outside；The uniform filled polyurethane of insulating layer
Foam, insulating sandwich are vacuum, and metal plate is steel plate.
Preferably, the second inner ring arc panel and outer ring arc panel are isocentric circular arc, and the second inner ring arc panel is corresponding straight
The diameter ratio of diameter and outer ring arc panel is 2:3.
H-type fin economizer provided by the invention, has the advantages that
Inner ring smoke chamber and outer ring smoke chamber of the present invention cooperate H-type fin, i.e., will under the action of inner ring smoke chamber and outer ring smoke chamber
Airflow direction is upset, and air-flow disturbs under the action of H-type fin, and the air-flow made is impacted along multiple directions to heat exchanging water pipe, in turn
Each face of heat exchanging water pipe energy and air flow contacts, increase heat exchange efficiency.
The inflow temperature T1 and leaving water temperature T2 of AT89S51 chip real-time reception acquisition, while receiving corresponding influent pressure
Power P1 and P2, when leaving water temperature T2 and discharge pressure P2 is not in normal preset range value, AT89S51 chip controls DO1
Power-off, electrically operated valve power loss, valve event close water inlet, while buzzer call is alarmed, and warn staff, and will alarm
Information and current water temperature information and pressure information are shown on a display screen, are found in time convenient for staff.
Fin, two pieces of one group weldings of fin are installed several on heat exchanging water pipe, constituting H-type fin on each heat exchanging water pipe
Group H-type fin, forms exhaust gases passes between several fins, and fin is parallel with air current flow direction, soot particle without deposition, and, fin
Slight perturbations are generated by sweep of gases, change flue gas exchange hot-water line directly washes away angle, reduces abrasion, it realizes from deashing,
Flue gas resistance is reduced, the dust stratification being attached on heat exchanging water pipe is reduced, and then increases the heat exchange efficiency of heat exchanging water pipe indirectly.
Detailed description of the invention
Fig. 1 is the structure chart of H-type fin economizer.
Fig. 2 is H-type fin economizer cross sectional view.
Fig. 3 is H-type fin economizer flue gas flow direction figure.
Fig. 4 is H-type fin economizer heat exchange smoke chamber structure chart.
Fig. 5 is H-type fin economizer control panel internal circuit diagram.
Fig. 6, Fig. 7 are H-type fin economizer heat exchanging water pipe's installation fins structure chart.
Wherein, 1, smoke inlet；2, shell；3, exhanst gas outlet；4, support column；5, outer ring smoke chamber；6, inner ring smoke chamber；7, go out
Grey mouth protection cap；8, it is discharged header；9, water outlet；10, temperature sensor；11, pressure sensor；12, water inlet header；13, into
Water pipe；14, insulating layer；15, insulating sandwich；16, metal plate；17, heat exchanging water pipe；18, flow distribution plate；19, electrically operated valve；20, it shows
Display screen；21, control panel；22, fin；61, the first inner ring arc panel；62, the second inner ring arc panel；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, the H-type fin economizer of this programme, including it is set to shell 2
The smoke inlet 1 of one end, and the exhanst gas outlet 3 with the opposition setting of smoke inlet 1；Smoke inlet 1 and exhanst gas outlet 3 respectively with
Heat exchange smoke chamber connection 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 installs ash hole protection cap 7 at ash hole, when not needing cleaning dust stratification, is embedded in (interference
Cooperation) ash hole.
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 without deposition, and, fin 22 is generated slight perturbations by sweep of gases, changes the direct of flue gas exchange hot-water line 17
Angle is washed away, abrasion is reduced, is realized from deashing, reduction flue gas resistance, the dust stratification that reduction is attached on heat exchanging water pipe 17, and then
Connect the heat exchange efficiency for increasing heat exchanging water pipe 17.
Shell 2 uses three-layer set, including polyurethane foam insulation layer 14, hands over for reducing heat exchange smoke chamber and external heat
It changes；Insulating sandwich 15 is further reduced heat exchange without heat transfer medium for vacuum；Metal plate 16 is used to support for steel plate.
With reference to Fig. 2, the smoke chamber that exchanges heat includes inner ring smoke chamber 6 and the outer ring smoke chamber 5 around the setting of inner ring smoke chamber 6, is located at inner ring
Several heat exchanging water pipes 17 are evenly distributed in smoke chamber 6 and outer ring smoke chamber 5.Wherein, heat exchanging water pipe 17 arrangement mode either
Conventional arrangement, can also arrange in a ring along inner ring smoke chamber 6 and outer ring smoke chamber 5.It simply shows in Fig. 2 and to arrange in a ring
Distribution, quantity is as just reference.
With reference to Fig. 4, inner ring smoke chamber 6 includes the first inner ring smoke chamber 64 and the second inner ring smoke chamber 65；First inner ring smoke chamber 64 packet
Including two the first inner ring arc panels 61,61 upper extreme point A3 of the first inner ring arc panel and A4 line are parallel to B3 and B4 line, and second
62 upper extreme point A1 of inner ring arc panel and A2 line are parallel to B1 and B2 line.
In this way, with reference to Fig. 3, it can be ensured that a part of air-flow directly circulates from the middle part of inner ring smoke chamber 6, and another part air-flow is then
It is flowed along the inside of the second inner ring arc panel 62 and the first inner ring arc panel 61；Although two parts air-flow speed is different, by
In the continuity of gas, two strands of air-flows must meet in the first inner ring smoke chamber 64 and 65 intersection of the second inner ring smoke chamber, formation office
Portion's flow-disturbing or vortex increase time of the air-flow in smoke chamber, change simultaneously the angle (biography that air-flow directly washes away heat exchanging water pipe 17
System is that air-flow vertically washes away water pipe, easy dust stratification, and heat exchange efficiency is low), dust stratification is reduced, heat exchange efficiency is increased.
Outer ring smoke chamber 5 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.The
One outer ring smoke chamber 66 includes two outer ring arc panels 63, structure between two outer ring arc panels 63 and two the first inner ring arc panels 61
At annular space be the first outer ring smoke chamber 66；Second outer ring smoke chamber 67 includes two outer ring arc panels 63, two outer ring arcs
The annular space constituted between plate 63 and two the second inner ring arc panels 62 is the second outer ring smoke chamber 67.
Ipsilateral outer ring arc panel 63 upper extreme point C1, C2 and C3 are located along the same line, and D1, D2 and D3 are located at same straight line
On, and endpoint C1, C2, C3 line are parallel with D1, D2, D3 line.
Two the first inner ring arc panels 61 upper extreme point A3 and B3 extend outwardly one piece of flow distribution plate 18, and flow distribution plate 18 extends to
The outlet of second outer ring smoke chamber 675 is simultaneously divided into two by the second outer ring smoke chamber 67.
Flue gas stream enters the second outer ring smoke chamber 67 from smoke inlet 1, and along the annular space of the second outer ring smoke chamber 67
Flowing, increases the flowing time of air-flow.When air-flow is left to the intersection of the second outer ring smoke chamber 67 and the first outer ring smoke chamber 66,
Under the action of flow distribution plate 18, change air flow direction, by a part of gas distribution to the first outer ring smoke chamber 66, another part air-flow point
It is flow to the first inner ring smoke chamber 64, and is met with other gases for converging to the first inner ring smoke chamber 64, and then forms vortex, is changed again
Become gas flow, increase time of the air-flow in smoke chamber, change simultaneously air-flow directly wash away heat exchanging water pipe 17 angle it is (traditional
It is that air-flow vertically washes away water pipe, easy dust stratification, heat exchange efficiency is low), dust stratification is reduced, heat exchange efficiency is increased.
Except this, inner ring smoke chamber 6 and outer ring smoke chamber 5 cooperate H-type fin, i.e., under the action of inner ring smoke chamber 6 and outer ring smoke chamber 5
Airflow direction is upset, air-flow disturbs again under the action of H-type fin, and the air-flow made is rushed along multiple directions to heat exchanging water pipe
It hits, and then each face of heat exchanging water pipe 17 energy and air flow contacts, increases heat exchange efficiency.
First inner ring arc panel 61 and the corresponding central angle a of the second inner ring arc panel 62 are 100 ° -120 °, preferably
120 °, the second inner ring arc panel 62 and outer ring arc panel 63 are isocentric circular arc, and the corresponding diameter of the second inner ring arc panel 62 with
The diameter ratio of outer ring arc panel 63 is 2:3.
By multiple field test, the smoke chamber angle of resulting optimized angle and diameter ratio, certain different size is had
Changed.Wherein, test principle is, under the premise of flue gas is enough, by the acquisition of inflow temperature (identical) and leaving water temperature,
Field test is carried out, the optimized angle for obtaining central angle a is 120 °, diameter ratio 2:3.
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 DN15XY-02DC24V 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 a display screen, is convenient for
Staff has found in time.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 (7)
1. a kind of H-type fin economizer, it is characterised in that: the smoke inlet including being set to shell one end, and enter with flue gas
The exhanst gas outlet of mouth opposition setting；The smoke inlet and exhanst gas outlet are connected to the heat exchange smoke chamber in shell respectively；
Water outlet header is arranged in setting water inlet header at the top of the exhanst gas outlet, cover top portion at smoke inlet position；It is described
A temperature sensor and pressure sensor are respectively mounted in water inlet header and water outlet header；On water inlet pipe in the water inlet header
Electrically operated valve is installed；The 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 the AT89S51 chip is electrically connected with temperature sensor, DI4 and DI3 pin with
Pressure sensor electrical connection, DI2 pin are electrically connected with buzzer；The electrically operated valve is connect with pin DO1 and 24v power end,
Display screen is connect with DO2 and 24v power end；
The heat exchange smoke chamber includes inner ring smoke chamber and the outer ring smoke chamber around the setting of inner ring smoke chamber；Positioned at the inner ring smoke chamber and outside
Several heat exchanging water pipes are evenly distributed in ring smoke chamber；The inner ring smoke chamber includes the first inner ring smoke chamber and the second inner ring smoke chamber；Institute
State the second outer ring smoke chamber that outer ring smoke chamber includes the first outer ring smoke chamber and is connected to the first outer ring smoke chamber；The heat exchanging water pipe is upper equal
Even to be equipped with several fins, two pieces of fins being located on same vertical plane constitute one group of H-type fin；On each heat exchanging water pipe
Weld several groups H-type fin.
2. H-type fin economizer according to claim 1, it is characterised in that: the first inner ring smoke chamber includes two the
One inner ring arc panel, the first inner ring arc panel upper extreme point A3 and A4 line are parallel to B3 and B4 line, on the second inner ring arc panel
Terminal A 1 and A2 line are parallel to B1 and B2 line；
The first outer ring smoke chamber includes two outer ring arc panels, between two outer ring arc panels and two the first inner ring arc panels
The annular space of composition is the first outer ring smoke chamber；The second outer ring smoke chamber includes two outer ring arc panels, two outer ring arcs
The annular space constituted between plate and two the second inner ring arc panels is the second outer ring smoke chamber；Ipsilateral outer ring arc panel upper end
Point C1, C2 and C3 are located along the same line, and D1, D2 and D3 are located along the same line, and endpoint C1, C2, C3 line and D1, D2,
D3 line is parallel；Two the first inner ring arc panel upper extreme point A3 and B3 extend outwardly one piece of flow distribution plate, and flow distribution plate extends
It is divided into two to the second outer ring smoke chamber and by the outlet of the second outer ring smoke chamber.
3. H-type fin economizer according to claim 2, it is characterised in that: in the first inner ring arc panel and second
The corresponding central angle a of ring arc panel is 100 ° -120 °.
4. H-type fin economizer according to claim 1, 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.
5. H-type fin economizer according to claim 1, it is characterised in that: the outer casing bottom offers at least two
Ash hole installs ash hole protection cap at ash hole.
6. H-type fin economizer according to claim 1, it is characterised in that: the shell includes heat preservation from inside to outside
Layer, insulating sandwich and metal plate；The uniform filled polyurethane foam of insulating layer, insulating sandwich is vacuum, and metal plate is steel plate.
7. H-type fin economizer according to claim 2, it is characterised in that: the second inner ring arc panel and outer ring arc
Shape plate is isocentric circular arc, and the diameter ratio of the corresponding diameter of the second inner ring arc panel and outer ring arc panel is 2:3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336952.3A CN110081756B (en) | 2019-04-25 | 2019-04-25 | H-shaped fin economizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336952.3A CN110081756B (en) | 2019-04-25 | 2019-04-25 | H-shaped fin economizer |
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| CN110081756A true CN110081756A (en) | 2019-08-02 |
| CN110081756B CN110081756B (en) | 2023-10-24 |
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| CN110081756B (en) | 2023-10-24 |
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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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