CN108362145A - A kind of flue gas waste heat recovery heat pipe and flue gas multiple pollutant processing system and method - Google Patents
A kind of flue gas waste heat recovery heat pipe and flue gas multiple pollutant processing system and method Download PDFInfo
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- CN108362145A CN108362145A CN201810172688.XA CN201810172688A CN108362145A CN 108362145 A CN108362145 A CN 108362145A CN 201810172688 A CN201810172688 A CN 201810172688A CN 108362145 A CN108362145 A CN 108362145A
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- section
- vertical tube
- ultrasonic coupling
- heat pipe
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Classifications
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- 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
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
Abstract
The present invention provides a kind of fume afterheats to remove organic matter section using heat pipe and its flue gas pollutant processing system and its method, including electrostatic precipitation section, electrostatic/ultrasonic coupling dedusting section and plasma/ultrasonic coupling catalysis.The present invention provides a kind of new heat pipe structures, it is improved by the structure of the evaporation ends of opposite heat tube, expand the heat absorption range of heat pipe, simultaneously problem is removed for above-mentioned dedusting and organic matter, it is proposed a kind of plasma based on electrostatic precipitator/ultrasonic coupling catalysis multi-pollutant removing method and device, original electrostatic precipitator is improved, realizes that coal-fired flue-gas high-effective dust-removing realizes the removing of organic matter simultaneously.
Description
Technical field
The present invention relates to heat pipe waste heat recoveries and flue gas ash removal and organic matter to remove field, more particularly to a kind of utilization
Heat pipe Mist heat recovering and plasma based on electrostatic precipitator/ultrasonic coupling is catalyzed multi-pollutant removing method and device.
Background technology
Hot pipe technique is U.S. Los Alamos (Los Alamos) in 1963National LaboratoryGeorge Ge Luofo
One kind of (George Grover) invention is known as the heat transfer of " heat pipe "Element, it takes full advantage of heat-conduction principle and is situated between with phase transformation
The heat of thermal objects is transmitted to outside heat source rapidly by the quick thermal transport property of matter through heat pipe, and the capacity of heat transmission is more than to appoint
The capacity of heat transmission of what known metal.Compared to shell-and-tube heat exchanger the most commonly used in coal-fired flue-gas waste heat recovery, heat pipe heat exchanging
Utensil has the advantages that heat transfer efficiency is high, compact-sized, the pressure loss is small, is conducive to control dew point corrosion, in coal-fired flue-gas waste heat
Potentiality are had more in recycling.
In addition, coal-burning power plant is one of main source of various pollutants, such as cause " haze " phenomenon dust particles and
And organic pollutant, they, which have human health and ecological environment, seriously endangers.In order to remove in coal-fired plant flue gas
Particulate matter, a variety of dust removal methods of developmental research at present, wherein electrostatic precipitation technology are because function admirable is rapidly developed, still
It is poor less than 10 μm of particle effect of settling for grain size.As country further increases atmosphere pollutants emission standards,
Need to improve the removal effect of particle of the former electric precipitation especially to grain size less than 10 μm.
Electrostatic precipitation+wet static dedusting technology is to realize the important technology route of minimum discharge standard, but wet type is electric
Dedusting operation and cost of investment are high.Realize that another technology path of minimum discharge is the optimization efficient cooperation-removal of wet desulphurization device
Particulate matter, this technology need to meet front end electrostatic precipitator outlet dust concentration≤20mg/m3Even≤10mg/m3, just electric at present
Electrostatic precipitator operating condition is difficult to meet in factory.In addition, coal-burning power plant's discharge also will produce certain density organic pollution,
Such as alicyclic, straight-chain hydrocarbons, benzene homologues and polycyclic aromatic hydrocarbon, although discharge capacity is few, toxicity is very big, to organic contamination in flue gas
The removing of object is the important research field of Environmental security.
In view of the above-mentioned problems, the present invention is improved on the basis of invention in front, provide more than a kind of new flue gas
Heat utilization heat pipe and its flue gas pollutant processing system and its method make full use of heat source, reduce energy consumption, improve smoke discharging effect.
Invention content
In view of the above-mentioned problems, the present invention is improved on the basis of invention in front, a kind of new heat pipe knot is provided
Structure, while problem is removed for above-mentioned dedusting and organic matter, propose a kind of plasma/ultrasound based on electrostatic precipitator
Coupling and catalyzing multi-pollutant removing method and device, improves original electrostatic precipitator.
To achieve the goals above, technical scheme is as follows：
A kind of heat pipe being arranged in flue, including vertical portion, horizontal component and VERTICAL TUBE, the wherein bottom of vertical portion
End connection horizontal component, direction of the horizontal component from the bottom end of vertical portion away from vertical portion extend, the water
Flat section lower is connected to multiple VERTICAL TUBEs, and wherein VERTICAL TUBE is the evaporation ends of heat pipe, and vertical portion is the condensation end of heat pipe, described
VERTICAL TUBE and horizontal component are arranged in flue.
Preferably, the horizontal component is flat tube structure, VERTICAL TUBE is circular tube structure, and horizontal component is rectangular knot
Structure；The VERTICAL TUBE is multiple rows of, wherein adjacent two rows are to be staggered in arrangement.
Preferably, the center of circle of VERTICAL TUBE and two closed on the VERTICAL TUBE center of circle of adjacent row constitute isosceles triangle, institute
State VERTICAL TUBE the center of circle be located at isosceles triangle apex angle point position.
Preferably, the outer diameter of VERTICAL TUBE is d, the distance between adjacent VERTICAL TUBE center of circle of same row is L, VERTICAL TUBE
The center of circle and adjacent row two closed on the VERTICAL TUBE center of circle constitute isosceles triangle apex angle be A, then meet claimed below：
Sin（A）=a-b*Ln (d/L), wherein Ln are logarithmic functions, and a, b are parameters, meet following require：
0.095<a<0.105,0.29<b<0.31；0.1< d/L<0.7.
A kind of removing system of coal-fired flue-gas pollutant, including electrostatic precipitation section, electrostatic/ultrasonic coupling dedusting section and wait from
Son/ultrasonic coupling catalysis removes organic matter section, and wherein electrostatic precipitation section setting is simultaneously removed in electrostatic in front, the inside setting dust collecting pole plate
Dirt section generates electrostatic field, and ash bucket is arranged in lower section, and electrostatic/ultrasonic coupling dedusting section is arranged behind electrostatic precipitation section, in inside
Generate electrostatic field, be provided with dust collecting pole plate in electrostatic/ultrasonic coupling dedusting section and end occurs for ultrasonic wave, ultrasonic wave occur end with it is outer
The supersonic generator in portion connects；Plasma/ultrasonic coupling catalysis is arranged except organic matter section after electrostatic/ultrasonic coupling dedusting section
Except setting plasma reactor in organic matter section and ultrasonic wave end occurs for face, plasma/ultrasonic coupling catalysis, and ultrasonic wave occurs
It holds and is connect with external supersonic generator.
Preferably, the electrostatic precipitation section is two-stage, it is the first order and the second level respectively；Electrostatic/the ultrasonic coupling
Dedusting section is two-stage, is the third level and the fourth stage respectively, and plasma/ultrasonic coupling catalysis is level-one except organic matter section, is the 5th
Grade.
Preferably, plasma reactor uses line-plank frame, including ground connection pole plate, ceramic wafer, corona discharge electrode and height
AC power, earthing pole plate earthing, ceramic wafer is pressed to be covered in formation line plate on pole plate, ceramic wafer forms and is situated between as block media
Matter barrier discharge, while supported catalyst, as catalyst carrier；The opposite ceramics in two blocks of line plates are arranged in the corona discharge electrode
Between plate.
Preferably, the dust collecting pole plate is mutually parallel；Several corona discharge electrodes are evenly arranged between dust collecting pole plate；Dust collecting pole plate
Surface is equipped with deashing device.
Preferably, the spacing between the opposite face of opposite ceramic wafer is no more than 5cm.
Preferably, residual heat using device is arranged in electrostatic precipitation section front, the residual heat using device is to be formerly mentioned
Heat pipe, the vertical portion at least part setting in the air passageway.
Preferably, described three, level Four electrostatic/ultrasonic coupling field, the foundation of electrostatic field are identical as I and II；In device
Ultrasonic wave is set, end occurs, ultrasonic wave occurs end and connect with supersonic generator, establishes ultrasonic field.
Preferably, the final stage plasma/ultrasonic coupling is catalyzed field, using line-plate type plasma reactor structure,
Plasma is generated using dielectric barrier discharge mode.Several electrode plates of plasma reactor parallel arrangement, intermediate uniform cloth
Several corona wires are set, electrode surface attaches ceramic wafer as block media and catalyst carrier.The foundation of ultrasonic field and preceding two-stage
It is identical.
It is a kind of using foregoing device carry out coal-fired flue-gas pollutant removal methods, which is characterized in that including with
Lower step：
1）Coal-fired flue-gas enters electrostatic precipitation section, and the particulate matter in flue gas is adsorbed in the electrostatic field of electrostatic precipitation section to gather dust
Pole plate falls into the ash bucket of lower section by deashing device, is taken away by ash conveying device, and electrostatic precipitation section removes the particulate matter in flue gas,
The especially particulate matter of PM10 or more：
2）Flue gas enters electrostatic/ultrasonic coupling dedusting section from electrostatic precipitation section, and by electrostatic/ultrasonic coupling field, particle is in ultrasound
Fierce mechanical oscillation are done in, the kinetic energy of particle increases, and the chance of particle encounter also increases, and the cohesive force between particle is usual
Keep two particles agglomerated together after an impact, so that little particle is become bulky grain by being continually colliding coalescence, easily inhaled by electrostatic
Attached removing can effectively remove the particulate matters below of PM2.5 in flue gas；
3）Flue gas enters plasma/ultrasonic coupling catalysis from electrostatic/ultrasonic coupling dedusting section and removes organic matter section, passes through dielectric impedance
Electric discharge generates a large amount of plasma, including high energy particle and active material in plasma reactor；High energy particle and work
Property substance and flue gas in organic pollution complicated physical-chemical reaction, degradation of organic substances occurs；Medium baffle supported catalyst
Agent plays catalytic action to the removing of organic matter；The high frequency peptizaiton of ultrasonic wave promotes organic matter and active material and catalyst
Reaction, enhance removal effect.
Compared with prior art, the present invention has the advantage that：
1）The present invention is transformed original electrostatic precipitator, and by being divided into three different sections, each section is targeted
The different pollutant of removing, can not only realize the removing of large particle in flue gas well, and by ultrasonic wave to
The coalescence agglomeration of grain, can effectively remove fine particle, solve former electrostatic precipitator to PM10 and PM2.5 removal effects not
Ideal drawback.It is high in conjunction with the high frequency dispersion effect of ultrasonic wave with plasma technique to the degradation of organic pollution
Organic pollution in effect degradation flue gas.The present invention is in the removing for realizing that coal-fired flue-gas high-effective dust-removing realizes organic matter simultaneously.
2）The present invention improves the structure of the evaporation ends of the heat pipe in UTILIZATION OF VESIDUAL HEAT IN, and the evaporation ends of heat pipe are extended
To farther direction, in the case where not changing the condensation end volume of heat pipe so that the endotherm area of the evaporation ends of heat pipe increases,
The heat absorption range that heat pipe can be expanded in this way, can absorb the heat of heat source distalmost end.Heat pipe in compared with the existing technology steams
Originator and condensation end are consistent size.The volume and floor space of heat exchanger are reduced simultaneously so that compact-sized.
3）The research of a large amount of numerical simulation and experiment is carried out, distributed architecture of the opposite heat tube in UTILIZATION OF VESIDUAL HEAT IN carries out
Optimal structure, and the best relative formula that heat pipe is distributed is obtained by research, the distribution of heat pipe is further increased, reaches best
Heat absorption, reduce cost.
Description of the drawings
Fig. 1 is flue gas processing device structural schematic diagram of the present invention.
Fig. 2 is the plasma reactor structural schematic diagram in flue gas processing device.
Fig. 3 is heat pipe structure schematic diagram of the present invention.
Fig. 4 is schematic diagrames of the Fig. 3 from bottom.
Fig. 5 is the heat pipe partial structural diagram of present invention setting communicating pipe.
Fig. 6 is that heat pipe structure schematic diagram is arranged in flue in the present invention.
Fig. 7 is the partial enlargement mark schematic diagram of Fig. 4.
In figure：1- shells, 2- dust collecting pole plates, 3- supersonic generators, 4- are grounded pole plate, 5- air-introduced machines, 6- ash buckets, 7-
Ceramic wafer, 8- corona discharge electrodes, 9- high voltage power supplies, 10- heat pipes, 101- vertical portions, 102- horizontal components, 103- VERTICAL TUBEs, 104-
Pipeline, 105- air ducts, 106- flues, 107- communicating pipes.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with the accompanying drawings.
Herein, if without specified otherwise, it is related to formula, "/" indicates that division, "×", " * " indicate multiplication.
The specific implementation mode of the present invention is described in detail below in conjunction with the accompanying drawings.
A kind of removing system of coal-fired flue-gas pollutant, including electrostatic precipitation section, electrostatic/ultrasonic coupling dedusting section and wait from
Son/ultrasonic coupling catalysis removes organic matter section, and in front, the inside is arranged dust collecting pole plate 2 and in electrostatic for wherein electrostatic precipitation section setting
Dedusting section generates electrostatic field, and ash bucket 6 is arranged in lower section, and electrostatic/ultrasonic coupling dedusting section is arranged behind electrostatic precipitation section, inside
Portion generates electrostatic field, is provided with dust collecting pole plate in electrostatic/ultrasonic coupling dedusting section and end occurs for ultrasonic wave, ultrasonic wave occur end with
External supersonic generator 3 connects；Plasma/ultrasonic coupling catalysis is arranged except organic matter section in electrostatic/ultrasonic coupling dedusting
Below, except setting plasma reactor in organic matter section and ultrasonic wave end, ultrasonic wave occur section for plasma/ultrasonic coupling catalysis
End occurs to connect with external supersonic generator.
The present invention is transformed original electrostatic precipitator, and by being divided into three different sections, each section is directed to
Property the different pollutant of removing, can not only realize the removing of large particle in flue gas well, and pass through ultrasonic wave pair
The coalescence agglomeration of particle can effectively remove fine particle, solve former electrostatic precipitator to PM10 and PM2.5 removal effects
Undesirable drawback.With plasma technique to the degradation of organic pollution, in conjunction with the high frequency dispersion effect of ultrasonic wave,
Organic pollution in efficient degradation flue gas.The present invention is in the removing for realizing that coal-fired flue-gas high-effective dust-removing realizes organic matter simultaneously.
The present invention avoids influence of the particle to dust removing effects by the rational collocation of these three stage sequencings,
So that dust removing effects reach best.On the contrary, finding through a large number of experiments, if by the sequence of three phases not according to the application
It is arranged, then pollutant discharge is with obvious effects bad.
Preferably, electrostatic precipitation section, electrostatic/ultrasonic coupling dedusting section are set using more of the routine of wide polar distance, high voltage
Meter mode, with pole span 300mm-400mm, working voltage is no more than 80kV；Preferably, the electrostatic precipitation section is two-stage, point
It is not the first order and the second level., can be more efficiently by bulky grain by the way that two-stage dedusting is arranged, such as PM10 or more is gone
It removes.
Preferably, the electrostatic precipitation section first order is different with the electric field strength of the second level.Further preferably, the second level
Electric field strength be less than the first order electric field strength.It is primarily due to the dedusting by the first order, the bulky grain contained in flue gas
Decline, therefore by reducing electric field strength, can to achieve the effect that using the less energy essentially identical.
Preferably, every grade of multiple dust collecting pole plates 2 of setting, the dust collecting pole plate 2 are mutually parallel；Between dust collecting pole plate uniformly
Arrange several corona discharge electrodes；Dust collecting pole plate surface is equipped with deashing device, removes the dust of polar board surface, falls within the ash below shell
Bucket, is taken away by ash conveying device.
Preferably, the corona discharge electrode is connected with high voltage power supply, electric field is established between dust collecting pole plate 2.
The high pressure of the high voltage power supply is no more than 80kV（Unit）.
Preferably, the system also includes controller, PM10 dust detectors are arranged in electrostatic precipitation section entrance, for examining
The PM10 concentration of entry position is surveyed, PM10 dust detectors connect with controller data, and the controller is according to the PM10 of detection
Concentration automatically controls the intensity of electric field.
If the PM10 concentration of detection is got higher, controller enhances the intensity of electric field automatically, if the PM10 concentration of detection
It is lower, then controller reduces the intensity of electric field automatically.
Controller controls the size of electric field by controlling the size to the output power of corona discharge electrode.
By above-mentioned intelligent control, the size of electric field is controlled automatically according to particle concentration, to realize system
Intellectualized operation, and energy saving requirement is may also reach up, further increase the pollutant removing effect of flue gas.
Preferably, PM10 dust detectors, the controller is respectively set in the first order entrance and second level entrance
The data detected according to the PM10 dust detectors of first order entrance and second level entrance independently control the first order and second
Electric field strength in grade.
The electrostatic/ultrasonic coupling dedusting section is two-stage, is the third level and the fourth stage respectively, plasma/ultrasonic coupling is urged
It is level-one to eliminate organic matter section, is level V.
Described three, level Four electrostatic/ultrasonic coupling dedusting section, the foundation of electrostatic field are identical as I and II；Setting is super in device
End occurs for sound wave, and ultrasonic wave occurs end and connect with supersonic generator 3, establishes ultrasonic field.
Preferably, pm2.5 detectors are arranged in electrostatic/ultrasonic coupling dedusting section entrance, for detecting entry position
Concentration less than pm2.5, pm2.5 detectors are connect with controller data, and the controller is automatic according to the pm2.5 concentration of detection
Control the power of supersonic generator 3.
If the pm2.5 concentration of detection is got higher, controller enhances the power of supersonic generator 3 automatically, if detection
PM2.5 concentration be lower, then controller reduces the power of supersonic generator 3 automatically.
By above-mentioned intelligent control, the size of 3 power of supersonic generator is controlled automatically according to particle concentration, from
And realize the intellectualized operation of system, and energy saving requirement is may also reach up, the pollutant for further increasing flue gas is de-
Except effect.
Preferably, the third level entrance and fourth stage entrance are respectively set pm2.5 detectors, the controller according to
The data of the PM2.5 detectors of third level entrance and fourth stage entrance detection independently control super in the third level and the fourth stage
The size of sonic generator power.
Preferably, as shown in Fig. 2, plasma reactor uses line-plank frame, including ground connection pole plate 4, ceramic wafer
7, corona discharge electrode 8 and high-voltage ac power 9, ground connection pole plate 4 are grounded, and ceramic wafer 7 is covered in formation line plate on pole plate 4, and ceramic wafer 7 is made
For block media, dielectric barrier discharge, while supported catalyst are formed, as catalyst carrier；The corona discharge electrode 8 is arranged two
Between the opposite ceramic wafer 7 of block line plate.
The foundation of ultrasonic field is identical as the third level, the fourth stage.
Preferably, the spacing between the opposite face of opposite ceramic wafer 7 is no more than 5cm.
Preferably, the final stage plasma/ultrasonic coupling is catalyzed field, using line-plate type plasma reactor structure,
Plasma is generated using dielectric barrier discharge mode.Several electrode plates of plasma reactor parallel arrangement, intermediate uniform cloth
Several corona wires are set, electrode surface attaches ceramic wafer as block media and catalyst carrier.
A kind of removal methods being carried out coal-fired flue-gas pollutant using foregoing device, are included the following steps：
1）Coal-fired flue-gas enters electrostatic precipitation section, and the particulate matter in flue gas is adsorbed in the electrostatic field of electrostatic precipitation section to gather dust
Pole plate falls into the ash bucket of lower section by deashing device, is taken away by ash conveying device, and electrostatic precipitation section removes the particulate matter in flue gas,
The especially particulate matter of PM10 or more：
2）Flue gas enters electrostatic/ultrasonic coupling dedusting section from electrostatic precipitation section, and by electrostatic/ultrasonic coupling field, particle is in ultrasound
Fierce mechanical oscillation are done in, the kinetic energy of particle increases, and the chance of particle encounter also increases, and the cohesive force between particle is usual
Keep two particles agglomerated together after an impact, so that little particle is become bulky grain by being continually colliding coalescence, easily inhaled by electrostatic
Attached removing can effectively remove the particulate matters below of PM2.5 in flue gas；
3）Flue gas enters plasma/ultrasonic coupling catalysis from electrostatic/ultrasonic coupling dedusting section and removes organic matter section, passes through dielectric impedance
Electric discharge generates a large amount of plasma, including high energy particle and active material in plasma reactor；High energy particle and work
Property substance and flue gas in organic pollution complicated physical-chemical reaction, degradation of organic substances occurs；Medium baffle supported catalyst
Agent plays catalytic action to the removing of organic matter；The high frequency peptizaiton of ultrasonic wave promotes organic matter and active material and catalyst
Reaction, enhance removal effect.
The operation principle of the present invention：The present invention is transformed original electric precipitator, and wherein I and II is conventional electricity
, three, level Four be electrostatic/ultrasonic coupling field, final stage is that plasma/ultrasonic coupling is catalyzed field.Coal-fired flue-gas enters electrostatic precipitation
Device is adsorbed by dust collecting pole plate after particulate matter is charged, is adhered on dust collecting pole plate after electric discharge in the conventional electrostatic field of I and II,
After deashing device is removed, the ash bucket of lower section, the particulate matter in electrostatic field in flue gas are fallen into（Especially of PM10 or more
Grain object）By efficient removal.By three, level Four electrostatic/ultrasonic coupling field, particle does fierce mechanical oscillation, grain in ultrasonic field
The kinetic energy of son increases, and the chance of particle encounter also increases, and the cohesive force between particle usually makes two particles agglomerate after an impact
Together, so that little particle is become bulky grain by being continually colliding coalescence, be easily electrostatically adsorbed removing, can effectively remove in flue gas
PM2.5 particulate matters below.The plasma of final stage contains a large amount of high energy particle and active material, in oxidation-degradable flue gas
Organic pollution, cooperate with supported catalyst catalytic action, ultrasonic wave high frequency dispersion, efficient removal organic pollution.
Preferably, residual heat using device is arranged in electrostatic precipitation section front, the residual heat using device is heat pipe waste heat profit
Use device.
As shown in Fig. 3,6, the residual heat using device includes heat pipe, and the heat pipe includes vertical portion 101, horizontal component
102 and VERTICAL TUBE 103, the wherein bottom end of vertical portion 101 is connected to horizontal component 102, and the horizontal component 102 is from vertical portion
101 bottom end extends away from the direction of vertical portion 101, and 102 lower part of the horizontal component is connected to multiple VERTICAL TUBEs 103,
Wherein VERTICAL TUBE 103 is the evaporation ends of heat pipe, and vertical portion 101 is the condensation end of heat pipe.The vertical portion at least one
Set up separately and set in the air passageway, the VERTICAL TUBE and horizontal component are arranged in flue 106
Heat pipe of the present invention absorbs heat from flue gas in operation, by VERTICAL TUBE 103, then the fluid in VERTICAL TUBE 103 into
Row evaporation, vertical portion is entered by horizontal component, then rejects heat to air in vertical portion, fluid carries out cold
It is solidifying, enter back into VERTICAL TUBE 103 by the effect of gravity.
The structure of the evaporation ends by the way that heat pipe is arranged of opposite heat tube of the present invention is improved, and the evaporation ends of heat pipe are extended
To farther direction, in the case where not changing the condensation end volume of heat pipe so that the endotherm area of the evaporation ends of heat pipe increases,
The heat absorption range that heat pipe can be expanded in this way, can absorb the heat of heat source distalmost end.Heat pipe in compared with the existing technology steams
Originator and condensation end are consistent size, can improve 45% or more heat exchange efficiency.Volume and the occupation of land of condensation end are reduced simultaneously
Area so that compact-sized.
In addition, the present invention is used as the evaporation ends of heat pipe by the way that multiple VERTICAL TUBEs 103 are arranged so that each VERTICAL TUBE 103 is made
The absorption of heat is added for independent endothermic tube one by one, also increases the endotherm area of integral heat pipe evaporation ends.
Preferably, the horizontal component 102 is flat tube structure, VERTICAL TUBE 103 is circular tube structure.It is horizontal by being arranged
Part is flat tube structure, can increase the distribution of VERTICAL TUBE 103, further increase the absorption of heat.
Further preferably, horizontal component 102 is square structure.
Preferably, as shown in figure 4, the VERTICAL TUBE 103 is multiple rows of, wherein adjacent two rows are to be staggered in arrangement.Pass through
It is staggered in arrangement, the caloric receptivity of heat pipe can be further increased.
Preferably, VERTICAL TUBE 103 is located at the extension of the center line of the center of circle connecting line segment of the adjacent upright pipe 103 of adjacent row
On line.I.e. two closed on VERTICAL TUBE, 103 center of circle in the center of circle of VERTICAL TUBE 103 and adjacent row constitutes isosceles triangle, described perpendicular
The center of circle of straight tube is located at the position of the point of isosceles triangle apex angle.
Preferably, as shown in figure 5, communicating pipe 107 is arranged between at least two adjacent VERTICAL TUBEs 103.Under study for action
It was found that during vertical section is absorbed heat, it may appear that the absorption heat of the endothermic tube of different location is different, leads to VERTICAL TUBE 103
Between pressure or temperature it is different, straightened portion pipe 103 can be caused to be heated so excessively high, cause the lost of life, once one
VERTICAL TUBE 103 goes wrong, and entire heat pipe may be caused the problem of can not using occur.The present invention by largely studying,
Communicating pipe 107 is arranged in adjacent VERTICAL TUBE, can make in the case where the heated difference of VERTICAL TUBE leads to pressure difference
Fluid in the big VERTICAL TUBE 103 of pressure quickly flows to the small VERTICAL TUBE 103 of pressure, to keep integral pressure balanced, keeps away
Exempt from hot-spot or supercooling.
Preferably, from 103 lower part of VERTICAL TUBE to 103 top of VERTICAL TUBE, multiple companies are set between adjacent VERTICAL TUBE 103
Siphunculus 107.By the way that multiple communicating pipes are arranged, fluid continuous counterpressure in evaporation process of absorbing heat is enabled to, is ensured whole
Pressure in a VERTICAL TUBE is balanced.
Preferably, from 103 lower part of VERTICAL TUBE to 103 top of VERTICAL TUBE, constantly subtract the distance between adjacent communicating pipe 107
It is small.This purpose is in order to which more communicating pipes are arranged, because of flowing up with fluid, fluid is constantly heated, with stream
Body is constantly heated, heated more and more uneven in different thermal-collecting tubes, therefore by above-mentioned setting, can ensure in fluid stream
Reach pressure equilibrium during dynamic as soon as possible.
Preferably, from 103 lower part of VERTICAL TUBE to 103 top of VERTICAL TUBE, constantly reduce the distance between adjacent communicating pipe
Amplitude it is increasing.It is found through experiments that, above-mentioned setting, can ensure more excellent in process fluid flow to reach pressure faster
Power is balanced.This is also the best mode of communicating got by largely studying pressure changes in distribution rule.
Preferably, from 103 lower part of VERTICAL TUBE to 103 top of VERTICAL TUBE, the diameter of communicating pipe 107 is continuously increased.This mesh
Be in order to be arranged ensure bigger connection area, because of flowing up with fluid, fluid is constantly heated, with fluid
It is continuous heated, it is heated more and more uneven in different thermal-collecting tubes, therefore by above-mentioned setting, can ensure to flow in fluid
Reach pressure equilibrium as soon as possible in the process.
Preferably, from 103 lower part of VERTICAL TUBE to 103 top of VERTICAL TUBE, the ever-increasing amplitude of diameter of communicating pipe 107
It is increasing.It is found through experiments that, above-mentioned setting, can ensure that more excellent in process fluid flow to reach pressure equal faster
Weighing apparatus.This is also the best mode of communicating got by largely studying pressure changes in distribution rule.
Found by numerical simulation and experiment, the distance between VERTICAL TUBE 103, including the distance of same row and adjacent row it
Between distance cannot be too small, it is too small that heat pipe distribution can be caused excessive, cause the caloric receptivity of every heat pipe insufficient, crossing conference leads to heat
Pipe distribution is very little, causes heat pipe to overheat, therefore the application sums up by a large amount of numerical simulation and experiment and carrys out heat pipe VERTICAL TUBE
The distribution of the optimizations of 103 distributions so that heat pipe can neither recept the caloric deficiency, and it is excessive to recept the caloric.
As shown in fig. 7, the outer diameter of VERTICAL TUBE 103 is d, the distance between adjacent 103 center of circle of VERTICAL TUBE of same row is
The apex angle that L, the center of circle of VERTICAL TUBE 103 and two closed on VERTICAL TUBE, 103 center of circle of adjacent row constitute isosceles triangle is A, then
Meet claimed below：
Sin（A）=a-b*Ln (d/L), wherein Ln are logarithmic functions, and a, b are parameters, meet following require：
0.095<a<0.105,0.29<b<0.31；
Further preferably, the a=0.1016, b=0.3043.
Preferably, tapering into d/L, a is increasing, and b is increasing.
Preferably, 15 °<A<80°.
Further preferably, 20 °<A<40°.
0.1< d/L<0.7, further preferably, 0.2< d/L<0.5.
Above-mentioned empirical equation is obtained by a large amount of numerical simulations and experiment, the structure obtained by above-mentioned relation formula, energy
It is enough to realize the heat pipe structure optimized, and pass through verification experimental verification, error is substantially within 3%.
The heat absorption capacity 900-1100W of heat pipe, further preferably 1000W；
90-110 degrees Celsius of the temperature of flue gas, further preferably 100 DEG C.
Heat pipe horizontal component shown in Fig. 3 is preferably square, the length of side be 400-600 millimeters, further preferably 500
Millimeter.
103 outside diameter d of VERTICAL TUBE is 9-12 millimeters, further preferably 11mm.
Preferably, as shown in figure 4, including two heat pipes, the horizontal component 102 of described two heat pipes in the system
It is respectively facing opposite direction and extends by the way that two symmetrical heat pipes are arranged, can absorb heat in different directions, meet heat exchange
Demand.
Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology
Personnel can make various changes or modifications, therefore protection scope of the present invention is answered without departing from the spirit and scope of the present invention
When being subject to claim limited range.
Claims (10)
1. a kind of heat pipe being arranged in flue, including vertical portion, horizontal component and VERTICAL TUBE, wherein vertical portion
Bottom end is connected to horizontal component, and direction of the horizontal component from the bottom end of vertical portion away from vertical portion extends, described
Horizontal component lower part is connected to multiple VERTICAL TUBEs, and wherein VERTICAL TUBE is the evaporation ends of heat pipe, and vertical portion is the condensation end of heat pipe, institute
It states VERTICAL TUBE and horizontal component is arranged in flue.
2. heat pipe as described in claim 1, which is characterized in that the horizontal component is flat tube structure, and VERTICAL TUBE is pipe
Structure, horizontal component are square structure；The VERTICAL TUBE is multiple rows of, wherein adjacent two rows are to be staggered in arrangement；The circle of VERTICAL TUBE
Two closed on the VERTICAL TUBE center of circle of the heart and adjacent row constitutes isosceles triangle, and the center of circle of the VERTICAL TUBE is located at isosceles triangle
The position of the point of apex angle.
3. heat pipe as claimed in claim 2, which is characterized in that the outer diameter of VERTICAL TUBE is d, the adjacent VERTICAL TUBE circle of same row
The distance between heart is L, and the center of circle of VERTICAL TUBE and two closed on the VERTICAL TUBE center of circle of adjacent row constitute the top of isosceles triangle
Angle is A, then meets claimed below：
Sin（A）=a-b*Ln (d/L), wherein Ln are logarithmic functions, and a, b are parameters, meet following require：
0.095<a<0.105,0.29<b<0.31；0.1< d/L<0.7.
4. a kind of removing system of coal-fired flue-gas pollutant, including electrostatic precipitation section, electrostatic/ultrasonic coupling dedusting section and wait from
Son/ultrasonic coupling catalysis removes organic matter section, and wherein electrostatic precipitation section is arranged in front, and dust collector pole is arranged inside electrostatic precipitation section
Plate simultaneously generates electrostatic field, and electrostatic/ultrasonic coupling dedusting section is arranged behind electrostatic precipitation section, electrostatic/ultrasonic coupling dedusting section
It is inside provided with dust collecting pole plate and end occurs for ultrasonic wave, and electrostatic field is generated in inside, end and external ultrasonic wave occur for ultrasonic wave
Generator connects；Plasma/ultrasonic coupling catalysis is arranged except organic matter section behind electrostatic/ultrasonic coupling dedusting section, and plasma/
Except the interior setting plasma reactor of organic matter section and ultrasonic wave end occurs for ultrasonic coupling catalysis, and end and outside occur for ultrasonic wave
Supersonic generator connects.
5. system as claimed in claim 4, which is characterized in that the electrostatic precipitation section is two-stage, is the first order and the respectively
Two level；The electrostatic/ultrasonic coupling dedusting section is two-stage, is the third level and the fourth stage respectively, and plasma/ultrasonic coupling catalysis removes
Organic matter section is level-one, is level V.
6. system as claimed in claim 4, which is characterized in that the dust collecting pole plate is mutually parallel；Between dust collecting pole plate uniformly
Arrange several corona discharge electrodes；Dust collecting pole plate surface is equipped with deashing device.
7. system as claimed in claim 4, which is characterized in that plasma reactor uses line-plank frame, including ground connection
Pole plate, ceramic wafer, corona discharge electrode and high voltage power supply, earthing pole plate earthing, ceramic wafer are covered in formation line plate on pole plate, and ceramic wafer is made
For block media, dielectric barrier discharge, while supported catalyst are formed, as catalyst carrier；The corona discharge electrode is arranged two
Between the opposite ceramic wafer of block line plate.
8. system as claimed in claim 4, which is characterized in that the spacing between the opposite face of opposite ceramic wafer is no more than
5cm。
9. system as claimed in claim 4, which is characterized in that it is characterized in that, UTILIZATION OF VESIDUAL HEAT IN is arranged in electrostatic precipitation section front
Device, the residual heat using device are the heat pipes described in one of claim 1-4, and vertical portion at least part is arranged
In the air passageway.
10. a kind of device using described in one of claim 4-9 carries out the removal methods of coal-fired flue-gas pollutant, feature exists
In including the following steps：
1）Coal-fired flue-gas enters electrostatic precipitation section, and the particulate matter in flue gas is adsorbed in the electrostatic field of electrostatic precipitation section to gather dust
Pole plate falls into the ash bucket of lower section by the deashing device on dust collecting pole plate surface, is taken away by ash conveying device, and electrostatic precipitation section removes cigarette
The particulate matter of particulate matter in gas, especially PM10 or more：
2）Flue gas enters electrostatic/ultrasonic coupling dedusting section from electrostatic precipitation section, and by electrostatic/ultrasonic coupling field, particle is in ultrasound
Fierce mechanical oscillation are done in, the kinetic energy of particle increases, and the chance of particle encounter also increases, and the cohesive force between particle is usual
Keep two particles agglomerated together after an impact, so that little particle is become bulky grain by being continually colliding coalescence, easily inhaled by electrostatic
Attached removing can effectively remove the particulate matters below of PM2.5 in flue gas；
3）Flue gas enters plasma/ultrasonic coupling catalysis from electrostatic/ultrasonic coupling dedusting section and removes organic matter section, passes through dielectric impedance
Electric discharge generates a large amount of plasma, including high energy particle and active material in plasma reactor；High energy particle and work
Property substance and flue gas in organic pollution complicated physical-chemical reaction, degradation of organic substances occurs；Medium baffle supported catalyst
Agent plays catalytic action to the removing of organic matter；The high frequency peptizaiton of ultrasonic wave promotes organic matter and active material and catalyst
Reaction, enhance removal effect.
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