CN105928382B - Quenching heat exchanger provided with multiple secondary heat exchange devices - Google Patents
Quenching heat exchanger provided with multiple secondary heat exchange devices Download PDFInfo
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- CN105928382B CN105928382B CN201610343786.6A CN201610343786A CN105928382B CN 105928382 B CN105928382 B CN 105928382B CN 201610343786 A CN201610343786 A CN 201610343786A CN 105928382 B CN105928382 B CN 105928382B
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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 quenching heat exchanger provided with multiple secondary heat exchange devices. The quenching heat exchanger comprises a shell, a quenching ring, a water retaining ring plate and secondary quenching devices. The quenching ring, the water retaining ring plate and the secondary quenching devices are arranged in the shell. Flue gas enters an inlet of the heat exchanger, and sequentially passes through the quenching ring, the water retaining ring plate and the secondary quenching devices. The quenching heat exchanger is characterized in that the multiple secondary quenching devices are arranged in the flowing direction of flue gas, and the quenching speed is further increased by setting the atomization spray quantity of the secondary quenching devices.
Description
Technical field
The invention belongs to field of heat exchangers, more particularly to the literary formula chilling heat exchange of a kind of flue gas and water direct contact heat-exchanging
Device.Present invention is mainly applied to contain halogen danger wastes CIU.
Background technology
As the development of chemical industry, the chemical products production capacity containing halogen are drastically amplified, environmental issue is increasingly highlighted,
The waste gas produced in its production process, waste liquid contains the extremely active halogen Organic substance of a large amount of chemical property.Burn such
Garbage must assure that the dioxin in flue gas after purification meets state environmental emissioning standard, and chilling dress can be arranged 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 for halogen element content is more than 5% or the less danger waste burning system of flue gas in garbage, it is impossible to returned using waste heat
Receiving apparatus reclaim heat, it is impossible to which 1100 DEG C of high-temperature flue gas after by burning are directly cooled to less than 200 DEG C, existing quencher structure
The technological requirement cannot 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 is entered 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 is entered from converging transition, is first passed through after converging transition again by divergent segment, and in the smoke inlet position of converging transition chilling ring is arranged.
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 form inner cavity chamber, internal partition with
The cavity that chilling ring shell, housing are formed is 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 arranged on pipe for the center of circle of pipe, the inner cavity chamber and exocoel
On the extended line of centrage.
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, then starts the Part II for extending straight up from the Part I end away from housing,
It is finally the Part IV of loop configuration then along the Part III that Part II end horizontal extends internally, the described 4th
Part forms annulus with enclosure；The position that described Part I is connected with housing is greater than with the distance in the center of circle
Annular space and the distance in the center of circle that Part IV is formed with housing；One end of the internal partition of described inner cavity chamber is connected to the end of housing
Portion, the other end is connected on housing, arrange on internal partition in ring cavity outlet, the interior ring cavity outlet and internal partition one end away from
From being greater than with a distance from the other end with internal partition；The Part IV of described exocoel arranges 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 are R2, and described inner cavity chamber's outlet is exported and the center of circle with the line in the center of circle with exocoel
The angle that formed of line be C, the included angle B that described inner cavity chamber's outlet is formed with housing, the included angle B is exported less than exocoel
The angle formed with housing；Meet equation below：
Sin (A)/Sin (B)=a*Ln (R1/R2)+b* (R1/R2)+c
Wherein Ln is exponential function, and a, b, c are coefficients, 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 from Quench annular space, upwards, the aperture of the spray apertures is got over
Come less；Preferably, the amplitude that the aperture of the spray apertures diminishes is also increasing.
Preferably, multiple spray apertures are set on quenching ring, along from Quench annular space, upwards, the distribution of the spray apertures is close
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, the atomizer being distributed along guiding coil pipe and are arranged on
The center atomizer composition of positioning disk tube hub, the atomizer is connected and to guiding coil pipe center with coil pipe is oriented to
Extend, described center atomizer is connected by communicating pipe with coil pipe is oriented to, be oriented to coil pipe to pass through 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. the present invention with a large amount of circulation alkali liquors and smoke contacts, is vaporized using two grades of coolings, can quickly, uniformly, efficiently
Ground reduces flue-gas temperature.
2. the present invention can will be up to by using two grades of quick coolings, avoiding the regeneration temperature range of bioxin
1400 DEG C or more of the direct rapid drawdown of high-temperature flue gas is 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 by the new chilling ring structure of design, and chilling ring structure is optimized, it is determined that optimal knot
Structure size, so as to the cooling effect being optimal.
4., by the setting of the upper and lower aperture of spray apertures or density, the optimum efficiency of heat exchange is realized.
5. the flow of circulation alkali liquor is controlled by monitor value.
6. new two grade chiller structure is taken, secondary heat exchange is realized.
7. heat exchanger is taken into literary formula structure, accelerate flue gas flow rate, near swiftly flowing flue gas low pressure is produced, so as to
Adsorption is produced, the disturbance of flue gas and fogged lye is strengthened, increases the contact area of alkali liquor and flue gas, make flue gas extremely short
Time in reach with fogged lye and uniformly mix.
8. the setting of the quantity of the setting or spray nozzle of quantity of being sprayed by two grades of chiller structures, realizes two grades
Heat exchange optimum efficiency.
Description of the drawings
The literary formula quencher total figure structure chart that Fig. 1 is provided for the present invention
Fig. 2 is one-level quenching apparatus schematic diagram
Fig. 3 is two grades of quenching apparatus schematic diagrams
Fig. 4 is the parameter schematic diagram of Fig. 2
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 outlet 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- trunnion sections, 26- divergent segments；27 Part I, 28 Part II, 29 Part III, 30 Part IV, 31 connections
Pipe.
Specific 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
State housing 5 to connect by trunnion section 25 including converging transition 24 and divergent segment 26, converging transition 24 and divergent segment 26；The flue gas is from gradually
Contracting section 24 is entered, and is first passed through after converging transition 24 again by divergent segment 26, and in the position of smoke inlet 1 of converging transition 24 chilling ring is arranged
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, in the insertion chilling ring 2 of the housing 5, as shown in Fig. 2 the chilling ring 2 includes shell 12 and internal partition 13.It is described in every
Plate 13 forms inner cavity chamber 18 with housing 5, and the cavity that internal partition 13 is formed with chilling ring shell 12, housing 5 is outer ring cavity 17.Internal ring
Chamber 18 and outer ring cavity 17 form annular along housing 5 respectively, and are interconnected.
Chilling ring inside arranges interior ring cavity 18, the disturbance that outer ring cavity is caused because of spray apertures is prevented effectively from, so as to strengthen Quench
Annular space 16 forms the stability of moisture film.
The chilling ring 2 is exported and is 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 of uniform decline in inner walls,
High-temperature flue gas and the directly contact of chilling housing 5 are avoided, chilling housing 5 is effectively protected.
Preferably, the injection direction of spray apertures 14 and converging transition centrage, i.e., be 75 ° along Fig. 1 vertical direction angles.
From 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 discovery, can greatly reduce the resistance of cooling liquid flowing, improve 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 centrage of pipe.
By being arranged such, it is found through experiments, 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 connect outside housing 5
Connect, and relative to the Part I 27 that housing 5 stretches out, then start vertically from the end of Part I 27 away from housing 5
Upwardly extending Part II 28, is finally ring then along the Part III 29 that the end horizontal of Part II 28 extends internally
The Part IV 30 of shape structure, the Part IV 30 is internally formed annulus 16 with shell 5.
Preferably, the position that described Part I 27 is connected with housing 5 is greater than the 4th with the distance in the center of circle
Divide the distance of 30 annular spaces 16 formed with housing 5 and the center of circle.
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 arranging on internal partition 13.The interior ring cavity outlet 15 and the distance of the one end of internal partition 13 be greater than with it is interior every
The distance of the other end of plate 13.It is positioned close at the position of the other end of internal partition 13, the Part IV of described exocoel 17
30 arrange outer ring cavity outlet 14.
Preferably, the included angle B that described inner cavity chamber's outlet 15 is formed with housing 5 is less than exocoel outlet (spraying
Hole 14) with housing 5 formed angle.By 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 that can cause inner cavity chamber 17 becomes big, buffers from entrance
The impact of 20 fluids for entering, reduces the resistance of inner cavity chamber.
Preferably, the extended line of the centrage of inner cavity chamber's 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.
Described housing 5 is A with the angle of the Part I of chilling ring shell, and the annular radius of described inner cavity chamber 18 are
R1, the annular radius of exocoel 17 are R2, and described inner cavity chamber exports the line and spray apertures 14 and the line in the center of circle with the center of circle
The angle of formation is C, i.e., the angle that exocoel outlet is formed with the line in the center of circle with housing 5 is B+C.It is found through experiments, 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 spray apertures outwards injection 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 enter 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 increased, equally, for included angle B
Need to meet certain requirement, if B is too little, substantial amounts of fluid can go out along chilling ring clearance flow, heat exchange is affected, if mistake
Greatly, then cause inner chamber room pressure excessive, the fluid of inner cavity chamber flows out difficulty.For angle C, if too small, cause fluid
Jet with downward flow direction, rather than to central-injection, if excessive, cause exocoel fluid resistance excessive, cause fluid injection distance
It is too near.Therefore R1, R2, included angle A, B, C need to meet some requirements so as to which heat transfer effect is optimal.
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, various ways is calculated, finally determine best relation formula.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, and a, b, c are coefficients,
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
Tested again after result of calculation, by the numerical value for calculating border and intermediate value, the result of gained is basic
Upper to match with formula, substantially within 3%, maximum relative error is less than 5% to error, 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：It is 0.245 that a is 0.085, b, works as R1/R2<0.5, c=0.85, work as R1/R2>
0.5, c=0.81.
Preferably, with the increase of R1/R2, c is less and less.By the change for arranging c so that the error of calculating is more
It is little.
For the parameters of structural dimension that others are not mentioned, designed using conventional standard.
Preferably, from Quench annular space 16 to Part III and Part IV link position, arranging on Part IV 30 many
Individual spray apertures 15.Certainly, Fig. 2 show only one, but be not limited to the schematic diagram of Fig. 2.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 on the other hand the spray apertures on top can obtain enough fluid pressures, it is ensured that spraying effect, mainly examine
Consider heat transfer effect.It is found through experiments, 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 this kind of strategy
The maximum heat transfer effect of card.
Preferably, the amplitude that the aperture of the spray apertures 15 diminishes is also increasing.By being arranged such, by experiment
It was found that, heat transfer effect improves 5% or so relative to being uniformly arranged.
Preferably, from Quench annular space 16 to Part III and Part IV link position, arranging on Part IV 30 many
Individual spray apertures 15.Certainly, Fig. 2 show only one, but be not limited to the schematic diagram of Fig. 2.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, 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 this kind of 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 arranged, 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 formed angle.
It should be noted that the angle of the line of formation herein either distance is all calculated with central point or centrage
Angle or distance.For example, what the link position of Part I 27 and housing 5 was taken is exactly centerline calculating 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 the center of circle to inner chamber or the housing at the place of exocoel
The half at middle part, i.e. thickness, for wall, uses the centrage of cross section of wall calculating.That is, R1, R2 are adopted
Be inner and outer wall average diameter
What spray apertures and the outlet of interior ring cavity were taken is the midpoint of empty central point, the i.e. axis of Fig. 4 positions and upper and lower both sides
Line intersection point.
Preferably, included angle B, C take be spray apertures and interior ring cavity outlet centrage, as shown in Figure 4.Namely
Say, preferably, the extended line of spray apertures and the centrage of interior ring cavity outlet is through the center of circle.
The rapid-cooling heat exchanger of the present invention includes two-stage quenching apparatus.As previously described quenching ring 2, belongs to first order urgency
Device for cooling.
As shown in figure 1, high-temperature flue gas text formula rapid-cooling heat exchanger, also including 3, two grades of quenching apparatus 4, venturi of dash ring flat-plate
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 through two grades of quenching apparatus.
As shown in figure 3, two grades of quenching apparatus 4 are by guiding coil pipe 8, the atomizer 10 being distributed along guiding coil pipe and set
Put the center atomizer 11 in positioning disk tube hub to constitute.The atomizer 10 is connected and from positioning disk with coil pipe is oriented to
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 coil pipe 8 is oriented to, 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 liquor.During circulation alkali liquor is smoke contacts, gasification, can have
Effect absorbs the sour gas in flue gas.
The alkali liquor of two grades of quenching apparatus 4 is uniformly distributed alkali liquor to each atomizing lance, Jing atomization sprays by coil pipe 8 is oriented to
Alkali liquor after mouth 10-11 atomizations sprays into the converging transition of venturi mixing chamber 21, enters with the flue gas Jing after one-level quenching apparatus 2 are lowered the temperature
One step mixes.
Chilling is carried out to flue gas by classification, high-temperature flue gas are Jing after the preliminary desuperheat of chilling ring 2, then carry out two by atomizer
Level cooling, the stability of intensifier.
Atomizer is arranged at gas approach, is arranged in literary formula quencher converging transition and is oriented to coil pipe 8, makes atomizer 10
It is uniformly distributed, and is provided with center atomizer 11, fogged lye can be completely covered exhaust gases passes, it is to avoid too high pair of local temperature sets
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 stretches out from inwall.
Atomizer top is provided with dash ring flat-plate 3, and the moisture film Jing dash ring flat-plate for making inner walls changes flow direction, in atomization spray
Mouth upper surface forms continuous moisture film, effectively prevent the damage that high-temperature flue gas wash away to atomizer and cause.
Preferably, along flow of flue gas direction, multiple two grades of quenching apparatus 4 can be arranged.Preferably, along flue gas
Flow direction, the quantity of atomizer 10 gradually increases in two grades of quenching apparatus 4.Preferably, the amplitude for gradually increasing 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, by above-mentioned setting,
The heat exchange amount of 15%-20% can be improved.
Preferably, along flow of flue gas direction, multiple two grades of quenching apparatus 4 can be arranged.Preferably, along flue gas
Flow direction, the spray amount of atomizer 10 gradually increases in two grades of quenching apparatus 4.Preferably, the amplitude for gradually increasing 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, is set by above-mentioned
Put, the heat exchange amount of 15%-20% can be improved.
Using the present invention so that more than 1100 DEG C of high-temperature flue gas from top to bottom, by smoke inlet 1 quencher are entered, according to
Secondary high-temperature flue gas are directly contacted with the circulation alkali liquor after atomization, vaporized by one-level quenching apparatus 2 and two grades of quenching apparatus 4, are sent out
High-temperature flue gas are rapidly decreased to 81 DEG C of water-vapo(u)r saturation temperature by raw heat transfer and mass transfer, are discharged by the exhanst gas outlet 6 of separation chamber 23.
The present invention can quickly, uniformly, efficiently reduce flue-gas temperature with a large amount of circulation alkali liquors and smoke contacts, vaporization.
The regeneration temperature range of bioxin is present invention obviates, the high-temperature flue gas that can will be up to 1400 DEG C or more are direct
It is down to water-vapo(u)r saturation temperature.
Preferably, quenching ring 2,5, two grades of quenching apparatus 4 of housing all use Hastelloy C alloys -276, enclosure interior not to 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 the divergent segment 26 arranges 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 liquor 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 adsorption, the disturbance of flue gas and fogged lye is strengthened, increases alkali liquor with flue gas
Contact area, makes flue gas reach with fogged lye within the extremely short time and uniformly mixes.
The temperature of circulation alkali liquor is essentially identical with the flue-gas temperature of exhanst gas outlet, and circulation alkali liquid measure is far longer than high-temperature flue gas
Alkali liquor amount needed for cooling, makes flue gas to contact with more fogged lyes within the regular hour, 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 the steam being carried takes literary formula urgency out of with flue gas Jing exhanst gas outlets 6
Cooler, causes quantity of circulating water to be gradually lowered, therefore arranges industry water moisturizing, by the Liquid level rate of water make-up of tank 23.
During chilling, the most of sour gas in flue gas is absorbed by circulation alkali liquor, and the pH value of circulation fluid is reduced,
Need regular discharge opeing, to reduce circulation alkali liquor in sour gas concentration, and the increment of alkali liquor is controlled by pH value, to ensure circulation
Liquid is in alkaline environment.
Tank of the present invention is provided with pH value monitoring device, by the pH value for measuring alkali liquor, controls the supply of 5% concentration alkali liquor
Amount.
For ensure alkali liquor minimum circulating load, requirement can be reached, will high-temperature flue gas be down to water-vapo(u)r saturation temperature, be provided with
Bunch grade adjustment device, arranges temperature monitor in exhanst gas outlet respectively, flow detector is arranged on pipeloop, for adjusting
The circulating load of alkali liquor.When temperature is too high or during too low cooling water flow, can pass through the flow for increasing cooling alkali liquor, 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
When being defined by claim limited range.
Claims (2)
1. a kind of rapid-cooling heat exchanger that multiple secondary heat exchanges are set, 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, and flue gas is entered from heat exchanger entrance, is sequentially passed through sharp
Cold ring, dash ring flat-plate, two grades of quenching apparatus, it is characterised in that along flow of flue gas direction, arrange multiple two grades of quenching apparatus；
Two grades of quenching apparatus are by guiding coil pipe, along the center for being oriented to the coil pipe atomizer being distributed and be arranged on positioning disk tube hub
Atomizer is constituted；The atomizer is connected and extends to coil pipe center from coil pipe guide is oriented to coil pipe is oriented to, described
Center atomizer by communicating pipe be oriented to coil pipe connect, guiding coil pipe fluid is passed to into center to pass through communicating pipe
Atomizer；Along flow of flue gas direction, the spray amount of atomizer gradually increases in two grades of quenching apparatus.
2. the rapid-cooling heat exchanger of multiple secondary heat exchanges is set as claimed in claim 1, it is characterised in that along flow of flue gas side
To the amplitude that spray amount gradually increases is increasing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343786.6A CN105928382B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger provided with multiple secondary heat exchange devices |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343786.6A CN105928382B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger provided with multiple secondary heat exchange devices |
| CN201510476113.3A CN105043131B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of cooled flue gas |
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 |
|---|---|
| CN105928382A CN105928382A (en) | 2016-09-07 |
| CN105928382B true CN105928382B (en) | 2017-04-12 |
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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 |
| CN201510476113.3A Active CN105043131B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of cooled flue gas |
| CN201610275905.9A Expired - Fee Related CN105865222B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger |
| CN201610275904.4A Active CN105928381B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of spray apertures variable density |
| CN201610343786.6A Active CN105928382B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger provided with multiple secondary heat exchange devices |
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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 |
| CN201510476113.3A Active CN105043131B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of cooled flue gas |
| CN201610275905.9A Expired - Fee Related CN105865222B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger |
| 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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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| US1980499A (en) * | 1931-02-25 | 1934-11-13 | Bartlett Hayward Co | Dust quencher for water gas apparatus and the like |
| CN1944591A (en) * | 2006-11-09 | 2007-04-11 | 北京航天石化技术装备工程公司 | Chilling ring of gasifying furnace |
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| 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 |
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| 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 |
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- 2015-08-06 CN CN201610343529.2A patent/CN106016324B/en not_active Expired - Fee Related
- 2015-08-06 CN CN201510476113.3A patent/CN105043131B/en active Active
- 2015-08-06 CN CN201610275905.9A patent/CN105865222B/en not_active Expired - Fee Related
- 2015-08-06 CN CN201610275904.4A patent/CN105928381B/en active Active
- 2015-08-06 CN CN201610343786.6A patent/CN105928382B/en active Active
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| US1980499A (en) * | 1931-02-25 | 1934-11-13 | Bartlett Hayward Co | Dust quencher for water gas apparatus and the like |
| CN101351256A (en) * | 2006-01-02 | 2009-01-21 | 奥图泰有限公司 | Quench system for metallurgical gases |
| CN1944591A (en) * | 2006-11-09 | 2007-04-11 | 北京航天石化技术装备工程公司 | Chilling ring of gasifying furnace |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105865222A (en) | 2016-08-17 |
| CN105043131B (en) | 2016-09-28 |
| CN106016324B (en) | 2017-08-25 |
| CN105865222B (en) | 2017-02-22 |
| CN105928381B (en) | 2018-01-26 |
| CN105043131A (en) | 2015-11-11 |
| CN106016324A (en) | 2016-10-12 |
| CN105928382A (en) | 2016-09-07 |
| CN105928381A (en) | 2016-09-07 |
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Effective date of registration: 20181220 Address after: 400054 No. 40, Sancun, Chenjiawan, Li Jiatuo, Banan District, Chongqing Patentee after: CHONGQING RUEPEAK PHARMACEUTICAL 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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