CN106016324B - A kind of flue gas rapid-cooling heat exchanger - Google Patents
A kind of flue gas rapid-cooling heat exchanger Download PDFInfo
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- CN106016324B CN106016324B CN201610343529.2A CN201610343529A CN106016324B CN 106016324 B CN106016324 B CN 106016324B CN 201610343529 A CN201610343529 A CN 201610343529A CN 106016324 B CN106016324 B CN 106016324B
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- flue gas
- grades
- atomizer
- coil pipe
- ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
- F28C3/08—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour with change of state, e.g. absorption, evaporation, condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- 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
- B01D53/40—Acidic components
-
- 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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- 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
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
-
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/06—Spray nozzles or spray pipes
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a kind of rapid-cooling heat exchanger of cooled flue gas, including housing, chilling ring, dash ring flat-plate, two grades of quenching apparatus, the chilling ring, dash ring flat-plate, two grades of quenching apparatus are arranged in housing, flue gas enters from heat exchanger entrance, sequentially pass through chilling ring, dash ring flat-plate, two grades of quenching apparatus, two grades of quenching apparatus are by guiding coil pipe, along the atomizer for being oriented to coil pipe distribution and the center atomizer composition for being arranged on positioning disk tube hub, the atomizer is connected with guiding coil pipe and extended to guiding coil pipe center, described center atomizer is connected by communicating pipe with being oriented to coil pipe, coil pipe is oriented to fluid is passed into center atomizer by communicating pipe.The optimal design-aside for the structure that the present invention passes through two grades of quenching apparatus, further increases the efficiency of heat exchange.
Description
Technical field
The invention belongs to the literary formula chilling heat exchange of field of heat exchangers, more particularly to a kind of flue gas and water direct contact heat-exchanging
Device.Present invention is mainly applied to the CIU of danger wastes containing halogen.
Background technology
With the development of chemical industry, the chemical products production capacity containing halogen is drastically amplified, and environmental issue is increasingly highlighted,
The waste gas produced in its production process, waste liquid contains a large amount of chemical property extremely active halogen organic matter.Burn such
Discarded object must assure that the dioxin in flue gas after purification meets state environmental emissioning standard, chilling can be set to fill in technological process
Put, prevent the regeneration of bioxin, generally face away from the regeneration temperature range of bioxin, by flue-gas temperature from 500 DEG C of rapid drawdowns to
200℃.But it is more than 5% or the less dangerous waste CIU of flue gas for halogen element content in discarded object, it is impossible to return using waste heat
Receiving apparatus reclaims heat, it is impossible to which 1100 DEG C of high-temperature flue gas after burning are directly cooled into less than 200 DEG C, existing quencher structure
The technological requirement can not be realized.
The content of the invention
The present invention proposes that a kind of such cigarette temperature that is applied to is high, and complicated component CIU quenching apparatus can be by flue-gas temperature
Below from the direct rapid drawdown of 1400 DEG C or more of high-temperature flue gas to 100 DEG C of water-vapo(u)r saturation temperature, the regeneration temperature of bioxin is avoided
Degree is interval, suppresses the generation of bioxin, while the corrosive gas in flue gas is effectively absorbed, and effectively in trapping flue gas
Solid particle.
The present invention is adopted the following technical scheme that：
A kind of rapid-cooling heat exchanger of cooled flue gas, including chilling housing, chilling ring, dash ring flat-plate, two grades of quenching apparatus, institute
Chilling ring is stated, dash ring flat-plate, two grades of quenching apparatus are arranged in housing, flue gas enters from heat exchanger entrance, sequentially passes through Quench
Ring, dash ring flat-plate, two grades of quenching apparatus.
Preferably, the housing includes converging transition and divergent segment, converging transition and divergent segment are connected by trunnion section；It is described
Flue gas enters from converging transition, first passes through after converging transition again by divergent segment, chilling ring is set in the smoke inlet position of converging transition.
Preferably, the chilling ring is hollow ring body structure, the chilling ring includes interior ring cavity and outer ring cavity, the shell
In body insertion chilling ring, the interior ring cavity includes shell and internal partition.The internal partition and housing formation inner cavity chamber, internal partition with
Chilling ring shell, the cavity of housing formation are outer ring cavity, and interior ring cavity and outer ring cavity form annular along housing respectively, and mutually interconnect
It is logical.
Preferably, chilling ring outlet is made up of Quench annular space and spray apertures, Quench annular space be chilling ring shell and
The annulus formed between housing, spray apertures are arranged on Quench shell；The annular of the inner cavity chamber and exocoel is circle
Structure, and inner cavity chamber and exocoel are concentric structure；The center of circle of the inner cavity chamber and exocoel is arranged on the shell in chilling ring
On body, the refrigerant inlet of described inner cavity chamber is arranged at the home position of housing；The chilling ring includes inlet, described
Inlet is arranged on the outside of housing；The inlet is pipe, and the center of circle of the inner cavity chamber and exocoel is arranged on pipe
On the extended line of center line.
Preferably, the shell of described chilling ring includes following four parts：It is connected with hull outside, and relative to shell
The Part I that body stretches out, the Part II then extended straight up since the Part I end away from housing,
The Part III extended internally then along Part II end horizontal, is finally the Part IV of loop configuration, the described 4th
Part and enclosure formation annulus；
The position and the distance in the center of circle that described Part I is connected with housing are greater than Part IV and formed with housing
Annular space and the center of circle distance；
One end of the internal partition of described inner cavity chamber is connected to the end of housing, and the other end is connected on housing, inside every
The distance of ring cavity outlet in being set on plate, the interior ring cavity outlet and internal partition one end be greater than with the other end of internal partition away from
From；The Part IV of described exocoel sets outer ring cavity outlet.
Preferably, the angle of the Part I of described housing and chilling ring shell is A, the annular of described inner cavity chamber
Radius is R1, and the annular radius of exocoel is R2, and the line of described inner cavity chamber outlet and the center of circle is exported and the center of circle with exocoel
The angle of line formation be C, the included angle B of described inner cavity chamber outlet and housing formation, the included angle B is less than exocoel outlet
With the angle of housing formation；Meet equation below：
Sin (A)/Sin (B)=a*Ln (R1/R2)+b* (R1/R2)+c
Wherein Ln is exponential function, a, and b, c is coefficient,
0.084<a<0.086,0.23<b<0.26,
For c, following value mode is taken：
Work as R1/R2<0.5,0.83<c<0.9；
Work as R1/R2>0.5,0.78<c<0.83；
Work as R1/R2=0.5, c=0.83；
0.4<R1/R2<0.6；
18°<A<50°；
14°<B<45°；
R1=10~300, unit mm；
R2=12.5~400, unit mm；
C=B
Preferably, multiple spray apertures are set on quenching ring, along upwards, the aperture of the spray apertures is got over from Quench annular space
Come smaller；Preferably, the amplitude that the aperture of the spray apertures diminishes is also increasing.
Preferably, multiple spray apertures are set on quenching ring, along upwards, the distribution of the spray apertures is close from Quench annular space
Degree is less and less；Preferably, the amplitude that the distribution density of the spray apertures diminishes is also increasing.
Preferably, two grades of quenching apparatus are by guiding coil pipe, along the atomizer for being oriented to coil pipe distribution and are arranged on
The center atomizer composition of positioning disk tube hub, the atomizer is connected with being oriented to coil pipe and to guiding coil pipe center
Extension, described center atomizer is connected by communicating pipe with being oriented to coil pipe, guiding coil pipe so as to by communicating pipe by fluid
Pass to center atomizer.
Preferably, described dash ring flat-plate is arranged between quenching ring and two grades of quenching apparatus, dash ring flat-plate and housing
Inwall be connected and stretch out from inwall.
First for prior art, the present invention has following effect：
1. it is of the invention using two grades of coolings, can quickly, uniformly, efficiently with a large amount of circulation alkali liquors and smoke contacts, vaporization
Ground reduces flue-gas temperature.
2. the present invention avoids the regeneration temperature range of bioxin, can will be up to by using two grades of quick coolings
Below 1400 DEG C or more of the direct rapid drawdown of high-temperature flue gas to 100 DEG C of water-vapo(u)r saturation temperature, while effectively absorbing in flue gas
Corrosive gas, and the solid particle effectively in trapping flue gas.
3. the present invention is optimized by designing new chilling ring structure, and to chilling ring structure, it is determined that optimal knot
Structure size, so that the cooling effect being optimal.
4. by the aperture above and below spray apertures or the setting of density, realize the optimum efficiency of heat exchange.
5. the flow of circulation alkali liquor is controlled by monitor value.
6. taking two grades of new cooling device structures, secondary heat exchange is realized.
7. heat exchanger is taken into literary formula structure, accelerate flue gas flow rate, low pressure is produced near swiftly flowing flue gas, so that
Suction-operated is produced, the contact area of the disturbance of flue gas and fogged lye, increase alkali lye and flue gas is strengthened, makes flue gas extremely short
Time in reach uniform mix with fogged lye.
8. being sprayed the setting of quantity or the setting of the quantity of spray nozzle by two grades of cooling device structures, two grades are realized
Exchange heat optimum efficiency.
Brief description of the drawings
The literary formula quencher total figure structure chart that Fig. 1 provides for the present invention
Fig. 2 is one-level quenching apparatus schematic diagram
Fig. 3 is two grades of quenching apparatus schematic diagrames
Fig. 4 is Fig. 2 parameter schematic diagram
Description of reference numerals：1- high-temperature flue gas entries；2- chilling rings；3- dash ring flat-plates；Bis- grades of quenching apparatus of 4-；5- chillings
Housing；6- exhanst gas outlets；7- circulation alkali liquors are exported；8- is oriented to coil pipe；9- coil inlets；10- atomizers；11- centers are atomized
Nozzle；12- chilling ring housings；13- internal partitions；14- spray holes；Ring cavity is exported in 15-；16- Quench annular spaces；The outer ring cavities of 17-；
Ring cavity in 18-；Ring cavity entrance in 19-；20- chilling ring entrances；21- venturi mixing chambers；22- separation chambers；23- tanks；24- is gradually
Contracting section；25- trunnions section, 26- divergent segments；27 Part I, 28 Part II, 29 Part III, 30 Part IV, 31 connections
Pipe.
Embodiment
Fig. 1 illustrates the overall profile of rapid-cooling heat exchanger.As shown in figure 1, the rapid-cooling heat exchanger includes housing 5, institute
Stating housing 5 includes converging transition 24 and divergent segment 26, and converging transition 24 and divergent segment 26 are connected by trunnion section 25；The flue gas is from gradually
Contracting section 24 enters, and first passes through after converging transition 24 again by divergent segment 26, chilling ring is set in the position of smoke inlet 1 of converging transition 24
2。
As shown in Fig. 2 the chilling ring 2 is hollow ring body structure.The chilling ring 2 includes interior ring cavity 18 and outer ring cavity
17, the housing 5 is inserted in chilling ring 2, as shown in Fig. 2 the chilling ring 2 includes shell 12 and internal partition 13.It is described in every
The cavity of plate 13 and the formation of housing 5 inner cavity chamber 18, internal partition 13 and chilling ring shell 12, the formation of housing 5 is outer ring cavity 17.Inner ring
Chamber 18 and outer ring cavity 17 form annular along housing 5 respectively, and are interconnected.
Ring cavity 18 in being set inside chilling ring, is prevented effectively from disturbance of the outer ring cavity caused by spray apertures, so as to strengthen Quench
The stability of the formation moisture film of annular space 16.
The chilling ring 2 is exported to be made up of Quench annular space 16 and spray apertures 14.Quench annular space 16 is the He of chilling ring shell 12
The annulus formed between chilling housing 5.Spray apertures 14 are arranged on Quench shell 12.
Because the presence of Quench annular space 16 so that the liquid of cooled flue gas forms the moisture film uniformly declined in inner walls,
Avoid high-temperature flue gas from directly being contacted with chilling housing 5, be effectively protected chilling housing 5.
Preferably, the injection direction of spray apertures 14 and converging transition center line, i.e., be 75 ° along Fig. 1 vertical direction angles.
From section, as shown in Fig. 2 the annular of the inner cavity chamber 18 and exocoel 17 is circular configuration, and inner cavity chamber
18 and exocoel 17 be concentric structure.
Preferably, the center of circle of the inner cavity chamber 18 and exocoel 17 is arranged on the housing 5 in chilling ring 12, Er Qiezuo
Refrigerant inlet 19 for preferred, described inner cavity chamber 18 is arranged at the home position of housing 5.By being arranged such, pass through
Experiment is found, can be greatly reduced the resistance of cooling liquid flowing, be improved the coefficient of heat transfer.
The chilling ring includes inlet 20, and the inlet 20 is arranged on the outside of housing 5.The inlet is circle
The center of circle of pipe, the inner cavity chamber 18 and exocoel 17 is arranged on the extended line of the center line of pipe.
By being arranged such, it is found through experiments that, relative to other designs, it is possible to reduce the resistance of cooling liquid flowing,
Extend the service life of equipment.
In the outside of rapid-cooling heat exchanger, the shell of described chilling ring includes following four parts：With connecting outside housing 5
Connect, and the Part I 27 stretched out relative to housing 5, it is then vertical since the end of Part I 27 away from housing 5
The Part II 28 upwardly extended, the Part III 29 extended internally then along the end horizontal of Part II 28 is finally ring
The Part IV 30 of shape structure, the Part IV 30 is internally formed annulus 16 with shell 5.
Preferably, position and the distance in the center of circle that described Part I 27 is connected with housing 5 are greater than the 4th
Divide the annular spaces 16 and the distance in the center of circle of 30 and the formation of housing 5.
One end of the internal partition 13 of described inner cavity chamber 18 is connected to the end of housing 5, and the other end is connected on housing 5.
Ring cavity outlet 15 in being set on internal partition 13.The distance of the interior ring cavity outlet 15 and the one end of internal partition 13 be greater than with it is interior every
The distance of the other end of plate 13.At the position for being positioned close to the other end of internal partition 13, the Part IV of described exocoel 17
30 set outer ring cavity outlet 14.
(sprayed preferably, described inner cavity chamber outlet 15 and the included angle B of the formation of housing 5 are less than exocoel outlet
Hole 14) with housing 5 formation angle.Pass through above-mentioned setting, it is meant that the outlet of inner cavity chamber is closer to housing 5, it is meant that exocoel
The outlet of room is higher than the outlet of inner cavity chamber.By above-mentioned setting, the space of inner cavity chamber 17 can be caused to become big, buffered from entrance
The impact of 20 fluids entered, reduces the resistance of inner cavity chamber.
Preferably, the extended line of the center line of inner cavity chamber outlet 15 passes through the center of circle.Preferably, the center of spray apertures 14
The extended line of line passes through the center of circle.
The angle of described housing 5 and the Part I of chilling ring shell is A, and the annular radius of described inner cavity chamber 18 is
R1, the annular radius of exocoel 17 is R2, described inner cavity chamber outlet and the line in the center of circle and spray apertures 14 and the line in the center of circle
The angle of formation is C, i.e. the line and the angle of the formation of housing 5 of exocoel outlet and the center of circle are B+C.It is found through experiments that, half
Footpath R1 is excessive, and R2 is too small, causes the flow resistance in exocoel 18 too big, and inner cavity chamber's flow resistance is too small, causes fluid to lead to
Cross that spray apertures outwards spray away from too far away, cause heat transfer effect poor, and R1 is too small, R2 is excessive, then can cause inner chamber chamber pressure
Excessive, and exocoel chamber pressure is too small, it is too near to again result in jet length, causes heat transfer effect too poor.For included angle A, together
Sample can not be excessive, if excessive, causes the spray angle of inlet 20 too inclined, cause into inner cavity chamber fluid very little, and
A large amount of fluids can be caused to overstock between the housing 5 and Part I of exocoel 17, resistance is added, equally, for included angle B
Need to meet certain requirement, if B is too small, substantial amounts of fluid can go out along chilling ring clearance flow, influence heat exchange, if mistake
Greatly, then cause inner chamber room pressure excessive, the fluid outflow of inner cavity chamber is difficult.For angle C, if too small, cause fluid
Injection, rather than to central-injection, if excessive, cause exocoel fluid resistance excessive, cause fluid injection distance downwards
It is too near.Therefore R1, R2, included angle A, B, C need to meet some requirements, and are optimal its heat transfer effect.
Therefore, the present invention is the optimal quenching ring summed up by the test data of multiple various sizes of quenching rings
Size relationship.Because quenching ring also has the variables such as angle, radius, therefore, characteristic sin (A), sin (B), R1/R2 are introduced,
From the optimum efficiency of cooling high temperature flue gas, diversified forms are calculated, best relation formula is finally determined.Described size is closed
System is as follows：
Sin (A)/Sin (B)=a*Ln (R1/R2)+b* (R1/R2)+c
Wherein Ln is exponential function, a, and b, c is coefficient,
0.084<a<0.086,0.23<b<0.26,
For c, following value mode is taken：
Work as R1/R2<0.5,0.83<c<0.9；
Work as R1/R2>0.5,0.78<c<0.83；
Work as R1/R2=0.5, c=0.83；
0.4<R1/R2<0.6；
18°<A<50°；
14°<B<45°；
R1=10~300, unit mm；
R2=12.5~400, unit mm；
C=B
By being tested again after result of calculation, by calculating the numerical value on border and median, the result of gained is basic
Upper to be matched with formula, error is substantially within 3%, and maximum relative error is no more than 5%, and mean error is 2.2%.
Preferably, 100mm<R1<200mm, 170mm<R2<350mm；
Further preferably, 130mm<R1<170mm, 210mm<R2<340mm；
Further preferably, 140mm<R1<160mm, 240mm<R2<300mm；
Coefficient optimization optimum be：A is that 0.085, b is 0.245, works as R1/R2<0.5, c=0.85, work as R1/R2>
0.5, c=0.81.
Preferably, with R1/R2 increase, c is less and less.By the change for setting c so that the error of calculating is more
It is small.
The parameters of structural dimension do not mentioned for others, is designed using conventional standard.
Preferably, setting many from Quench annular space 16 to Part III and Part IV link position, on Part IV 30
Individual spray apertures 15.Certainly, Fig. 2 show only one, but be not limited to Fig. 2 schematic diagram.From Quench annular space 16 to the 3rd
Divide and Part IV link position, the aperture of the spray apertures 15 is less and less.Main cause is on the one hand to ensure cooling liquid
Distribution, it is ensured that the spray apertures on top can obtain enough fluid pressures, it is ensured that spraying effect, on the other hand, mainly examine
Consider heat transfer effect.It is found through experiments that, is arranged such, using the teaching of the invention it is possible to provide heat exchange amount 20% or so.Main cause is similar to shell-and-tube
The adverse current of heat exchanger, when following current, heat exchange amount is maximum at entry position, but final heat exchange amount but diminishes, and adverse current
Heat exchange, the heat exchange amount of whole heat transfer process, similar to countercurrent flow, is protected all than more uniform therefore of the invention using such a strategy
Demonstrate,prove maximum heat transfer effect.
Preferably, the amplitude that the aperture of the spray apertures 15 diminishes is also increasing.By being arranged such, pass through experiment
It was found that, heat transfer effect improves 5% or so relative to being uniformly arranged.
Preferably, setting many from Quench annular space 16 to Part III and Part IV link position, on Part IV 30
Individual spray apertures 15.Certainly, Fig. 2 show only one, but be not limited to Fig. 2 schematic diagram.From Quench annular space 16 to the 3rd
Divide and Part IV link position, the distribution density of the spray apertures 15 is less and less.Main cause is on the one hand to ensure cooling
The distribution of liquid, it is ensured that the spray apertures on top can obtain enough fluid pressures, it is ensured that spraying effect, on the other hand, mainly
It is to consider heat transfer effect.It is found through experiments that, is arranged such, using the teaching of the invention it is possible to provide heat exchange amount 20% or so.Main cause is similar to pipe
The adverse current of shell heat exchanger, when following current, heat exchange amount is maximum at entry position, but final heat exchange amount but diminishes, and
Countercurrent flow, the heat exchange amount of whole heat transfer process is changed all than more uniform therefore of the invention using such a strategy similar to adverse current
Heat, it is ensured that maximum heat transfer effect.
Preferably, the amplitude that the distribution density of the spray apertures 15 diminishes is also increasing.By being arranged such, pass through
Experiment finds that heat transfer effect improves 5% or so relative to being uniformly arranged.
When multiple spray apertures are set, what the angle C in formula above took is closest to interior ring cavity outlet 15
Spray apertures and interior ring cavity outlet 15 and the center of circle between the angle that is formed.
It should be noted that the angle of the line of formation herein or apart from being calculated with central point or center line
Angle or distance.For example, the link position of Part I 27 and housing 5 take be exactly centerline to calculate itself and the center of circle
Distance, the center of circle also is located at the middle part of the wall of housing 5, and inner/outer diameter is also housing of the center of circle to inner chamber or the place of exocoel
The half at middle part, i.e. thickness, for wall, the center line for using the cross section of wall is calculated.That is, R1, R2 are used
Be inner and outer wall average diameter.What spray apertures and the outlet of interior ring cavity were taken is the axis of empty central point, i.e. Fig. 4 positions
With the intersection point of the line at the midpoint on both sides up and down.
Preferably, included angle B, C take be spray apertures and interior ring cavity outlet center line, as shown in Figure 4.Namely
Say, preferably, the extended line of spray apertures and the center line of interior ring cavity outlet is by the center of circle.
The rapid-cooling heat exchanger of the present invention includes two-stage quenching apparatus.Quenching ring 2 as previously described, belongs to the first order anxious
Device for cooling.
As shown in figure 1, high-temperature flue gas text formula rapid-cooling heat exchanger, in addition to dash ring flat-plate 3, two grades of quenching apparatus 4, venturi
Blender 21, separation chamber 22 and tank 23.
Two grades of quenching apparatus are arranged on downstream, i.e. flue gas and first pass through quenching ring 2, then again by two grades of quenching apparatus.
As shown in figure 3, two grades of quenching apparatus 4 are by guiding coil pipe 8, along the atomizer 10 for being oriented to coil pipe distribution and set
The center atomizer 11 put in positioning disk tube hub is constituted.The atomizer 10 is connected and from positioning disk with being oriented to coil pipe
Pipe 8 extends to the center of coil pipe 8 is oriented to, and described center atomizer 11 is connected by communicating pipe 31 with being oriented to coil pipe 8, positioning disk
Fluid is passed to center atomizer by pipe 8 will pass through communicating pipe 31.
Preferably, the fluid of cooled flue gas is alkali lye.During circulation alkali liquor is smoke contacts, gasification, can have
Effect absorbs the sour gas in flue gas.
The alkali lye of two grades of quenching apparatus 4 is uniformly distributed alkali lye to each atomizing lance by guiding coil pipe 8, is sprayed through atomization
Alkali lye after mouth 10-11 atomizations sprays into the converging transition of venturi mixing chamber 21, enters with the flue gas after cooling through one-level quenching apparatus 2
One step is mixed.
Chilling is carried out to flue gas by being classified, high-temperature flue gas carries out two after the preliminary desuperheat of chilling ring 2, then by atomizer
Level cooling, the stability of intensifier.
Atomizer is arranged at gas approach, is set in literary formula quencher converging transition and is oriented to coil pipe 8, makes atomizer 10
It is uniformly distributed, and provided with center atomizer 11, exhaust gases passes can be completely covered in fogged lye, it is to avoid too high pair of local temperature is set
It is standby to cause to damage.
Further preferably, described is the even number not less than 4 along the quantity of 8 atomizer of coiled tube arrangements 10 is oriented to, and uniformly,
Liquidate arrangement.
Preferably, described dash ring flat-plate 3 is arranged between quenching ring 2 and two grades of quenching apparatus 4, dash ring flat-plate 3 with
The inwall of housing 5 is connected and stretched out from inwall.
Dash ring flat-plate 3 is provided with above atomizer, the moisture film of inner walls is changed through dash ring flat-plate and flows to, in atomization spray
Mouth upper surface forms continuous moisture film, effectively prevent the damage that high-temperature flue gas washes away and caused to atomizer.
Preferably, along flow of flue gas direction, multiple two grades of quenching apparatus 4 can be set.Preferably, along flue gas
The quantity of atomizer 10 gradually increases in flow direction, two grades of quenching apparatus 4.Preferably, gradually increased amplitude is more next
It is bigger.Main cause is similar to the setting of spray apertures 14, is just not described further.It is found through experiments that, by above-mentioned setting,
15%-20% heat exchange amount can be improved.
Preferably, along flow of flue gas direction, multiple two grades of quenching apparatus 4 can be set.Preferably, along flue gas
The spray amount of atomizer 10 gradually increases in flow direction, two grades of quenching apparatus 4.Preferably, gradually increased amplitude is got over
Come bigger.Main cause is similar to the setting of spray apertures 14, is just not described further.It is found through experiments that, is set by above-mentioned
Put, 15%-20% heat exchange amount can be improved.
Using the present invention so that more than 1100 DEG C of high-temperature flue gas from top to bottom, enters quencher by smoke inlet 1, according to
Secondary by one-level quenching apparatus 2 and two grades of quenching apparatus 4, high-temperature flue gas is directly contacted with the circulation alkali liquor after atomization, vaporized, hair
Raw heat transfer and mass transfer, are rapidly decreased to 81 DEG C of water-vapo(u)r saturation temperature by high-temperature flue gas, are discharged by the exhanst gas outlet 6 of separation chamber 23.
The present invention with a large amount of circulation alkali liquors and smoke contacts, vaporization, can quickly, uniformly, efficiently reduce flue-gas temperature.
Present invention obviates the regeneration temperature range of bioxin, the high-temperature flue gas that can will be up to 1400 DEG C or more is direct
It is down to water-vapo(u)r saturation temperature.
Preferably, quenching ring 2, housing 5, two grades of quenching apparatus 4 all use Hastelloy C alloys -276, enclosure interior can not be set
Refractory material is put, the volume of equipment is reduced.
Venturi quencher and tank are combined as a whole, the floor space of equipment is reduced.
Preferably, the converging transition 24 and divergent segment 26 are round table-like, trunnion section 25 is converging transition 24 and divergent segment
Connecting portion between 26.
Preferably, the bottom of divergent segment 26 sets separation chamber 22 and tank 23, exhanst gas outlet is arranged on the separation
The lower end of room 22.
With the mixed flue gas of alkali lye by converging transition, sectional area from the coarse to fine, accelerates flue gas flow rate, swiftly flowing
Low pressure is produced near flue gas, so as to produce suction-operated, the disturbance of flue gas and fogged lye is strengthened, increase alkali lye and flue gas
Contact area, makes flue gas reach uniform mix with fogged lye within the extremely short time.
The temperature of circulation alkali liquor and the flue-gas temperature of exhanst gas outlet are essentially identical, and circulation alkali liquid measure is far longer than high-temperature flue gas
Alkali lye amount needed for cooling, makes flue gas to be contacted within the regular hour with more fogged lyes, substantially reduces flue gas
With fogged lye heat transfer, the time of mass transfer.
Flue gas after cooling can carry substantial amounts of steam, and it is anxious that the steam being carried takes literary formula out of with flue gas through exhanst gas outlet 6
Cooler, causes quantity of circulating water gradually to reduce, therefore sets industry water moisturizing, by the Liquid level rate of water make-up of tank 23.
During chilling, most of sour gas in flue gas is absorbed by circulation alkali liquor, the pH value reduction of circulation fluid,
Regular discharge opeing is needed, to reduce the concentration of sour gas in circulation alkali liquor, and by the increment of pH value control alkali lye, to ensure circulation
Liquid is in alkaline environment.
Tank of the present invention is provided with pH value monitoring device, by measuring the pH value of alkali lye, controls the supply of 5% concentration alkali lye
Amount.
To ensure the minimum internal circulating load of alkali lye, requirement can be reached, i.e., high-temperature flue gas is down to water-vapo(u)r saturation temperature, is provided with
Bunch grade adjustment device, sets temperature monitor in exhanst gas outlet respectively, flow detector is set on pipeloop, for adjusting
The internal circulating load of alkali lye.When temperature is too high or during too low cooling water flow, the flow of alkali lye can be cooled down by increasing, to protect downstream
Equipment.
Although the present invention is disclosed as above with preferred embodiment, the present invention is not limited to this.Any art technology
Personnel, without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore protection scope of the present invention should
It is defined when by claim limited range.
Claims (3)
1. a kind of flue gas rapid-cooling heat exchanger, including housing, chilling ring, dash ring flat-plate, two grades of quenching apparatus, the housing insertion swash
In cold ring, dash ring flat-plate, two grades of quenching apparatus are arranged in housing, flue gas from heat exchanger entrance enter, sequentially pass through chilling ring,
Dash ring flat-plate, two grades of quenching apparatus, two grades of quenching apparatus are by guiding coil pipe, along the atomizer for being oriented to coil pipe distribution and set
The center atomizer composition in positioning disk tube hub is put, the atomizer is connected and into guiding coil pipe with being oriented to coil pipe
The heart extends, and described center atomizer is connected by communicating pipe with guiding coil pipe, will pass through communicating pipe by fluid from guiding
Coil pipe passes to center atomizer；Characterized in that, along flow of flue gas direction, multiple two grades of quenching apparatus are set, along
The quantity of atomizer gradually increases in flow of flue gas direction, two grades of quenching apparatus.
2. rapid-cooling heat exchanger as claimed in claim 1, it is characterised in that along flow of flue gas direction, gradually increased amplitude
It is increasing.
3. rapid-cooling heat exchanger as claimed in claim 1, the housing includes converging transition and divergent segment, converging transition and divergent segment are logical
Cross trunnion section connection；The flue gas enters from converging transition, first passes through after converging transition again by divergent segment, enters in the flue gas of converging transition
Mouth position sets chilling ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343529.2A CN106016324B (en) | 2015-08-06 | 2015-08-06 | A kind of flue gas rapid-cooling heat exchanger |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476113.3A CN105043131B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of cooled flue gas |
| CN201610343529.2A CN106016324B (en) | 2015-08-06 | 2015-08-06 | A kind of flue gas rapid-cooling heat exchanger |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510476113.3A Division CN105043131B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of cooled flue gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106016324A CN106016324A (en) | 2016-10-12 |
| CN106016324B true CN106016324B (en) | 2017-08-25 |
Family
ID=54449878
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610343529.2A Expired - Fee Related CN106016324B (en) | 2015-08-06 | 2015-08-06 | A kind of flue gas rapid-cooling heat exchanger |
| CN201610275905.9A Expired - Fee Related CN105865222B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger |
| CN201610343786.6A Active CN105928382B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger provided with multiple secondary heat exchange devices |
| CN201510476113.3A Active CN105043131B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of cooled flue gas |
| CN201610275904.4A Active CN105928381B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of spray apertures variable density |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610275905.9A Expired - Fee Related CN105865222B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger |
| CN201610343786.6A Active CN105928382B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger provided with multiple secondary heat exchange devices |
| CN201510476113.3A Active CN105043131B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of cooled flue gas |
| CN201610275904.4A Active CN105928381B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of spray apertures variable density |
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| CN (5) | CN106016324B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445789A (en) * | 2016-05-30 | 2017-12-08 | 中国平煤神马能源化工集团有限责任公司 | It is a kind of that quickly cooling device and method are carried out to the Pintsch gas containing acetylene |
| CN107764079A (en) * | 2016-08-16 | 2018-03-06 | 神华集团有限责任公司 | Gas cooling device, gasification furnace and method for gas cooling |
| CN106635182B (en) * | 2016-11-29 | 2023-03-21 | 东方电气集团东方锅炉股份有限公司 | Chilling ring of gasification furnace |
| CN106949479A (en) * | 2017-03-21 | 2017-07-14 | 饶勇 | The small-sized domestic garbage pyrolysis processing system of villages and small towns level |
| CN107812442A (en) * | 2017-08-25 | 2018-03-20 | 兰州凯特环境技术工程有限公司 | A kind of device and its technological process that dioxin in incineration smoke is removed using moment whirlwind chilling technique |
| CN109579558A (en) * | 2018-11-04 | 2019-04-05 | 青岛东卡环保工程技术有限公司 | A kind of radioactivity high-temperature flue gas quenching apparatus and quick cooling method |
| CN109806708A (en) * | 2019-04-03 | 2019-05-28 | 上海羿诚环保科技有限公司 | Packaged type danger wastes disposal system and technique |
| CN112648625B (en) * | 2019-10-12 | 2022-02-18 | 万华化学集团股份有限公司 | Device and method for rapidly cooling high-temperature gas |
| CN113615742B (en) * | 2020-05-06 | 2024-03-29 | 丰益(上海)生物技术研发中心有限公司 | Margarine processing technology |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1980499A (en) * | 1931-02-25 | 1934-11-13 | Bartlett Hayward Co | Dust quencher for water gas apparatus and the like |
| CN1406654A (en) * | 2001-08-23 | 2003-04-02 | 中国石油化工股份有限公司巴陵分公司 | Liquid distributor |
| CN2847068Y (en) * | 2005-10-14 | 2006-12-13 | 宜兴市恒泰环保设备有限公司 | Waste liquid, waste gas burning fast cooling integrated incinerator |
| DE102006000696B4 (en) * | 2006-01-02 | 2007-12-13 | Outotec Oyj | Quench tower for metallurgical gases |
| CN100552006C (en) * | 2006-11-09 | 2009-10-21 | 北京航天万源煤化工工程技术有限公司 | A kind of chilling ring of gasifying furnace |
| CN203096006U (en) * | 2012-12-26 | 2013-07-31 | 中国寰球工程公司 | Quenching ring of gasifying furnace |
| CN203474741U (en) * | 2013-04-18 | 2014-03-12 | 中国寰球工程公司 | Treatment equipment for impurity-containing high temperature gas |
| CN103740410A (en) * | 2013-12-25 | 2014-04-23 | 河南金土地煤气工程有限公司 | Two-section type entrained-flow bed gasification device for biomasses and gasification method |
| CN103978707B (en) * | 2014-04-17 | 2016-06-08 | 常州纺织服装职业技术学院 | For 1,3,4-diazole containing acid hygrometric state cast film washing process |
| CN204455028U (en) * | 2015-02-15 | 2015-07-08 | 上海齐耀热能工程有限公司 | A kind of eddy flow chilling ring |
-
2015
- 2015-08-06 CN CN201610343529.2A patent/CN106016324B/en not_active Expired - Fee Related
- 2015-08-06 CN CN201610275905.9A patent/CN105865222B/en not_active Expired - Fee Related
- 2015-08-06 CN CN201610343786.6A patent/CN105928382B/en active Active
- 2015-08-06 CN CN201510476113.3A patent/CN105043131B/en active Active
- 2015-08-06 CN CN201610275904.4A patent/CN105928381B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105928381B (en) | 2018-01-26 |
| CN105928381A (en) | 2016-09-07 |
| CN106016324A (en) | 2016-10-12 |
| CN105928382B (en) | 2017-04-12 |
| CN105865222A (en) | 2016-08-17 |
| CN105865222B (en) | 2017-02-22 |
| CN105043131B (en) | 2016-09-28 |
| CN105928382A (en) | 2016-09-07 |
| CN105043131A (en) | 2015-11-11 |
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Effective date of registration: 20181220 Address after: 401120 Maliu Village Group 5, Shichuan Town, Yubei District, Chongqing Patentee after: Chongqing Yuyao Building Materials Co., Ltd. Address before: 266100 No. 345-2 Zhongcheng Road, Chengyang District, Qingdao City, Shandong Province Patentee before: Qingdao Sino science and Technology Development Co., Ltd. |
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