CN105928382A - 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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- CN105928382A CN105928382A CN201610343786.6A CN201610343786A CN105928382A CN 105928382 A CN105928382 A CN 105928382A CN 201610343786 A CN201610343786 A CN 201610343786A CN 105928382 A CN105928382 A CN 105928382A
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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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (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, particularly relate to the civilian formula chilling of a kind of flue gas and water direct contact heat-exchanging
Heat exchanger.Present invention is mainly applied to containing halogen danger wastes CIU.
Background technology
Along with the development of chemical industry, the chemical products production capacity containing halogen is drastically amplified, environmental issue day
Benefit highlights, the waste gas produced in its production process, and waste liquid contains the halogen family unit that a large amount of chemical property is the most active
Element Organic substance.Burn two English in the flue gas after such garbage must assure that purification and meet national environmental protection discharge
Standard, can arrange quenching apparatus, prevent the regeneration of two English, generally face away from two English in technological process
Regeneration temperature range, by flue-gas temperature from 500 DEG C of rapid drawdowns to 200 DEG C.But halogen element in garbage is contained
The danger waste burning system that amount is more than 5% or flue gas is less, it is impossible to utilize waste-heat recovery device to reclaim heat, it is impossible to
1100 DEG C of high-temperature flue gas after burning directly are cooled to less than 200 DEG C, and existing quencher structure cannot realize
This technological requirement.
Summary of the invention
The present invention proposes one, and to be applicable to such cigarette temperature high, and complicated component CIU quenching apparatus can be by cigarette
Temperature, is avoided to water-vapo(u)r saturation temperature less than 100 DEG C from 1400 DEG C or the direct rapid drawdown of above high-temperature flue gas
The regeneration temperature range of two English, suppresses the generation of two English, the most effective corrosion absorbed in flue gas
Property gas, and the effectively solid particle in trapping flue gas.
The present invention adopts the following technical scheme that:
The rapid-cooling heat exchanger of a kind of cooled flue gas, including chilling housing, chilling ring, dash ring flat-plate, two grades of urgency
Device for cooling, described chilling ring, dash ring flat-plate, two grades of quenching apparatus are arranged in housing, and flue gas is from heat exchanger
Entrance enters, and sequentially passes through chilling ring, dash ring flat-plate, two grades of quenching apparatus.
As preferably, described housing includes that converging transition and divergent segment, converging transition and divergent segment are by trunnion Duan Lian
Connect；Described flue gas enters from converging transition, passes through divergent segment again, at the flue gas of converging transition after first passing through converging transition
Entry position arranges chilling ring.
As preferably, described chilling ring is hollow ring body structure, and described chilling ring includes interior ring cavity and outer ring cavity,
Described housing inserts in chilling ring, and described interior ring cavity includes shell and internal partition.Described internal partition and housing shape
Becoming inner cavity chamber, the cavity that internal partition is formed with chilling ring shell, housing is outer ring cavity, interior ring cavity and outer ring cavity
Form annular along housing respectively, and be interconnected.
As preferably, the outlet of described chilling ring is made up of Quench annular space and spray apertures, and Quench annular space is outside chilling ring
The annulus formed between shell and housing, spray apertures is arranged on Quench shell；Described inner cavity chamber and exocoel
Annular be circular configuration, and inner cavity chamber and exocoel are concentric structure；Described inner cavity chamber and exocoel
The center of circle is arranged on the housing in chilling ring, and the refrigerant inlet of described inner cavity chamber is arranged on the center of circle of housing
Position；Described chilling ring includes that inlet, described inlet are arranged on the outside of housing；Described inlet
For pipe, on the extended line of the centrage that the center of circle of described inner cavity chamber and exocoel is arranged on pipe.
As preferably, the shell of described chilling ring includes following four parts: be connected with hull outside, and
Relative to the outward extending Part I of housing, then start from the Part I end away from housing vertically to
The Part II of upper extension, the Part III extended internally then along Part II end horizontal, be finally
The Part IV of loop configuration, described Part IV forms annulus with enclosure；Described first
The position of connection with housing is divided to be greater than, with the distance in the center of circle, annular space and the center of circle that Part IV is formed with housing
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 to housing
On, internal partition arranges the outlet of interior ring cavity, the outlet of described interior ring cavity is greater than with the distance of internal partition one end
Distance with the other end of internal partition；The Part IV of described exocoel arranges the outlet of outer ring cavity.
As preferably, described housing is A with the angle of the Part I of chilling ring shell, described inner cavity chamber
Annular radius be R1, the annular radius of exocoel is R2, the line in the outlet of described inner cavity chamber and the center of circle with
Exocoel outlet is C with the angle of the line formation in the center of circle, the angle that described inner cavity chamber's outlet is formed with housing
B, the angle that described included angle B is formed with housing less than exocoel outlet；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, take following value mode:
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
As preferably, quenching ring arranges multiple spray apertures, along from Quench annular space upwards, described spray apertures
Aperture more and more less；As preferably, the amplitude that the aperture of described spray apertures diminishes is the most increasing.
As preferably, quenching ring arranges multiple spray apertures, along from Quench annular space upwards, described spray apertures
Distribution density more and more less；As preferably, the amplitude that the distribution density of described spray apertures diminishes is the most increasingly
Greatly.
As preferably, two grades of quenching apparatus be by guide coil pipe, along guide coil pipe distribution atomizer and
Being arranged on the center atomizer composition of positioning disk tube hub, described atomizer is connected also with guiding coil pipe
From to guiding the extension of coil pipe center, described center atomizer was connected with guiding coil pipe by communicating pipe, led
Will pass through communicating pipe, fluid is passed to center atomizer to coil pipe.
As preferably, described dash ring flat-plate is arranged between quenching ring and two grades of quenching apparatus, dash ring flat-plate
It is connected with the inwall of housing and stretches out from inwall.
First for prior art, the present invention has the effect that
1. the present invention uses two grades of coolings, with a large amount of circulation alkali liquors and smoke contacts, vaporization, it is possible to quickly,
Uniformly, flue-gas temperature is reduced efficiently.
2. the present invention is by using two grades of quick coolings, avoids the regeneration temperature range of two English, can be by
Up to 1400 DEG C or the direct rapid drawdown of above high-temperature flue gas are to water-vapo(u)r saturation temperature less than 100 DEG C, the most effectively
The corrosive gas absorbed in flue gas, and the effectively solid particle in trapping flue gas.
3. the present invention is by designing new quenching ring structure, and is optimized quenching ring structure, it is determined that
Good physical dimension, thus reach optimum cooling effect.
4. pass through the upper and lower aperture of spray apertures or the setting of density, it is achieved the optimum efficiency of heat exchange.
5. the flow of circulation alkali liquor is controlled by monitor value.
6. take new two grade chiller structure, it is achieved secondary heat exchange.
7. heat exchanger is taked literary composition formula structure, accelerates flue gas flow rate, produce low near swiftly flowing flue gas
Pressure, thus produce adsorption, strengthening the disturbance of flue gas and fogged lye, increase alkali liquor connects with flue gas
Contacting surface is amassed, and makes flue gas reach with fogged lye to mix uniformly within the extremely short time.
8. pass through the setting of two grades of chiller structures spraying quantity or the setting of the quantity of spray nozzle, real
Existing secondary heat exchange optimum efficiency.
Accompanying drawing explanation
Civilian formula quencher total graph structure figure 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 diagrams
Fig. 4 is the parameter schematic diagram of Fig. 2
Description of reference numerals: 1-high-temperature flue gas entry；2-chilling ring；3-dash ring flat-plate；Bis-grades of quenching apparatus of 4-；
5-chilling housing；6-exhanst gas outlet；7-circulation alkali liquor exports；8-guides coil pipe；9-coil inlet；10-mist
Change nozzle；11-center atomizer；12-chilling ring housing；13-internal partition；14-spray hole；15-internal ring
Chamber exports；16-Quench annular space；The outer ring cavity of 17-；Ring cavity in 18-；Ring cavity entrance in 19-；20-chilling ring enters
Mouthful；21-venturi mixing chamber；22-separation chamber；23-tank；24-converging transition；25-trunnion section, 26-is gradually
Expand section；27 Part I, 28 Part II, 29 Part III, 30 Part IV, 31 communicating pipes.
Detailed description of the invention
Fig. 1 illustrates the overall profile of rapid-cooling heat exchanger.As it is shown in figure 1, described rapid-cooling heat exchanger includes
Housing 5, described housing 5 includes that converging transition 24 and divergent segment 26, converging transition 24 and divergent segment 26 pass through larynx
Pipeline section 25 connects；Described flue gas enters from converging transition 24, passes through divergent segment 26 after first passing through converging transition 24 again,
In smoke inlet 1 position of converging transition 24, chilling ring 2 is set.
As in figure 2 it is shown, described chilling ring 2 is hollow ring body structure.Described chilling ring 2 includes interior ring cavity 18
With outer ring cavity 17, described housing 5 inserts in chilling ring 2, as in figure 2 it is shown, outside described chilling ring 2 includes
Shell 12 and internal partition 13.Described internal partition 13 forms inner cavity chamber 18, internal partition 13 and Quench with housing 5
The cavity that ring shell 12, housing 5 are formed is outer ring cavity 17.Interior ring cavity 18 and outer ring cavity 17 are respectively along housing
5 form annular, and are interconnected.
Interior ring cavity 18 is set inside chilling ring, is prevented effectively from the disturbance that outer ring cavity causes because of spray apertures, thus increases
Strong Quench annular space 16 forms the stability of moisture film.
Described chilling ring 2 exports and is made up of Quench annular space 16 and spray apertures 14.Quench annular space 16 is chilling ring
The annulus formed between shell 12 and chilling housing 5.Spray apertures 14 is arranged on Quench shell 12.
Because the existence of Quench annular space 16 so that the liquid of cooled flue gas forms uniformly decline in inner walls
Moisture film, it is to avoid high-temperature flue gas directly contacts with chilling housing 5, is effectively protected chilling housing 5.
As preferably, the injection direction of spray apertures 14 and converging transition centrage, i.e. along Fig. 1 vertical direction folder
Angle is 75 °.
From section, as in figure 2 it is shown, the annular of described inner cavity chamber 18 and exocoel 17 is circular configuration,
And inner cavity chamber 18 and exocoel 17 are concentric structure.
As preferably, the center of circle of described inner cavity chamber 18 and exocoel 17 is arranged on the housing 5 in chilling ring 12
On, and as preferably, the refrigerant inlet 19 of described inner cavity chamber 18 is arranged on the position, the center of circle of housing 5
Put place.By being arranged such, it is found through experiments, the resistance of cooling liquid flowing can be greatly reduced, carry
The high coefficient of heat transfer.
Described chilling ring includes that inlet 20, described inlet 20 are arranged on the outside of housing 5.Described feed liquor
Mouth is pipe, on the extended line of the centrage that the center of circle of described inner cavity chamber 18 and exocoel 17 is arranged on pipe.
By being arranged such, it is found through experiments, designs relative to other, it is possible to reduce cooling liquid flows
Resistance, 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 housing 5
External connection, and relative to the outward extending Part I of housing 5 27, then from away from the first of housing 5
Part 27 end starts the Part II 28 extended straight up, then along Part II 28 end horizontal
The Part III 29 extended internally, is finally the Part IV 30 of loop configuration, described Part IV 30 with
Shell 5 is internally formed annulus 16.
As preferably, described Part I 27 is greater than with the distance in the center of circle with the position of the connection of housing 5
The annular space 16 of Part IV 30 and housing 5 formation and the distance in 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 to
On housing 5.Internal partition 13 arranges interior ring cavity outlet 15.Described interior ring cavity outlet 15 and internal partition 13
The distance of one end is greater than the distance of the other end with internal partition 13.It is positioned close to internal partition 13 other end
Position, the Part IV 30 of described exocoel 17 arrange outer ring cavity outlet 14.
As preferably, the included angle B that described inner cavity chamber's outlet 15 and housing 5 are formed is less than exocoel outlet
The angle that (i.e. spray apertures 14) is formed with housing 5.By above-mentioned setting, it is meant that the outlet of inner cavity chamber is more
Near housing 5, it is meant that the outlet of exocoel is higher than the outlet of inner cavity chamber.By above-mentioned setting, can make
The space obtaining inner cavity chamber 17 becomes big, buffers the impact of the fluid entered from entrance 20, the resistance of minimizing inner cavity chamber
Power.
As preferably, the extended line of the centrage of inner cavity chamber's outlet 15 is through the center of circle.As preferably, spray apertures
The extended line of the centrage of 14 passes the center of circle.
Described housing 5 is A with the angle of the Part I of chilling ring shell, the ring of described inner cavity chamber 18
Shape radius is R1, and the annular radius of exocoel 17 is R2, the line in the outlet of described inner cavity chamber and the center of circle with
Spray apertures 14 is C with the angle of the line formation in the center of circle, i.e. exocoel exports the line with the center of circle and housing 5
The angle formed is B+C.Being found through experiments, radius R1 is excessive, and R2 is too small, in causing exocoel 18
Flow resistance too big, and inner cavity chamber's flow resistance is too small, cause fluid to pass through spray apertures outwards sprays away from
Too far away, cause heat transfer effect poor, and R1 is too small, R2 is excessive, then inner cavity chamber's pressure can be caused excessive, and
Exocoel pressure is too small, again results in jet length too near, causes heat transfer effect the poorest.Included angle A is come
Say, equally can not be excessive, if excessive, then cause inlet 20 spray angle too inclined, cause entering inner chamber
The fluid of room very little, and can cause a large amount of fluid to overstock between housing 5 and the Part I of exocoel 17,
Add resistance, equally, included angle B is also required to meet certain requirement, if B is the least, the most in a large number
Fluid can go out along chilling ring clearance flow, affect heat exchange, if excessive, then cause inner chamber room pressure excessive,
The fluid of inner cavity chamber flows out difficulty.For angle C, if too small, then cause fluid Jet with downward flow direction rather than
To central-injection, if excessive, then cause exocoel fluid resistance excessive, cause fluid jet length the nearest.
Therefore R1, R2, included angle A, B, C need to meet some requirements so that it is heat transfer effect reaches optimum.
Therefore, the present invention is the optimal urgency summed up by the test data of multiple various sizes of quenching rings
The size relationship of cold ring.Because quenching ring also has the variable such as angle, radius, therefore, introduce characteristic
Sin (A), sin (B), R1/R2, from the optimum efficiency of cooling high temperature flue gas, calculate various ways,
Finally determine best relation formula.Described size relationship 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, take following value mode:
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 testing again after result of calculation, by calculating border and the numerical value of intermediate value, the knot of gained
Fruit substantially matches with formula, and error is substantially within 3%, and maximum relative error is less than 5%, flat
All errors are 2.2%.
As preferably, 100mm < R1 < 200mm, 170mm < R2 < 350mm；
Further preferably, 130mm < R1 < 170mm, 210mm < R2 < 340mm；
Further preferably, 140mm < R1 < 160mm, 240mm < R2 < 300mm；
The optimum of coefficient optimization is: a is 0.085, and b is 0.245, as R1/R2 < 0.5, c=0.85,
Work as R1/R2 > 0.5, c=0.81.
As preferably, along with the increase of R1/R2, c is more and more less.By arranging the change of c so that calculate
Error less.
For other the parameters of structural dimension do not mentioned, conventional standard is used to design.
As preferably, from Quench annular space 16 to Part III and Part IV link position, Part IV 30
On multiple spray apertures 15 is set.Certainly, Fig. 2 show only one, but is not limited to the schematic diagram of Fig. 2.
From Quench annular space 16 to Part III and Part IV link position, the aperture of described spray apertures 15 is increasingly
Little.Main cause is on the one hand to ensure the distribution of cooling liquid, it is ensured that the spray apertures on top can obtain enough
Fluid pressure, it is ensured that spraying effect, on the other hand, mainly consider heat transfer effect.It is found through experiments,
It is arranged such, using the teaching of the invention it is possible to provide heat exchange amount about 20%.Main cause is similar to the adverse current of shell-and-tube heat exchanger, suitable
The when of stream, at entry position, heat exchange amount is maximum, but final heat exchange amount but diminishes, and countercurrent flow,
Heat exchange amount all ratios of whole heat transfer process are more uniform, and therefore the present invention uses this kind of strategy, are similar to adverse current and change
Heat, it is ensured that maximum heat transfer effect.
As preferably, the amplitude that the aperture of described spray apertures 15 diminishes is the most increasing.By being arranged such,
Being found through experiments, heat transfer effect, relative to being uniformly arranged, improves about 5%.
As preferably, from Quench annular space 16 to Part III and Part IV link position, Part IV 30
On multiple spray apertures 15 is set.Certainly, Fig. 2 show only one, but is not limited to the schematic diagram of Fig. 2.
From Quench annular space 16 to Part III and Part IV link position, the distribution density of described spray apertures 15 is more
Come the least.Main cause is on the one hand to ensure the distribution of cooling 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 consider heat transfer effect.By experiment
Find, be arranged such, using the teaching of the invention it is possible to provide heat exchange amount about 20%.Main cause is similar to the inverse of shell-and-tube heat exchanger
Stream, the when of following current, at entry position, heat exchange amount is maximum, but final heat exchange amount but diminishes, and inverse
Stream heat exchange, heat exchange amount all ratios of whole heat transfer process are more uniform, and therefore the present invention uses this kind of strategy, similar
In countercurrent flow, it is ensured that maximum heat transfer effect.
As preferably, the amplitude that the distribution density of described spray apertures 15 diminishes is the most increasing.By so setting
Putting, be found through experiments, heat transfer effect, relative to being uniformly arranged, improves about 5%.
When arranging multiple spray apertures when, what the angle C in formula above taked is closest to interior ring cavity
The angle formed between the spray apertures of outlet 15 and interior ring cavity outlet 15 and the center of circle.
It should be noted that the angle of the line of formation herein or distance are all with central point or centrage
Calculate angle or distance.Such as, during what the link position of Part I 27 and housing 5 was taked is exactly
Line point calculates the distance of itself and the center of circle, and the center of circle also is located at the middle part of the wall of housing 5, and inner/outer diameter is also round
The heart, to inner chamber or the half at the middle part of the housing at the place of exocoel, i.e. thickness, for wall, uses wall
The centrage of cross section calculates.It is to say, R1, R2 use the average diameter of inner and outer wall
What spray apertures and the outlet of interior ring cavity were taked is empty central point, i.e. the axis of Fig. 4 position and upper and lower both sides
The intersection point of line at midpoint.
As preferably, what included angle B, C taked is spray apertures and the centrage of interior ring cavity outlet, as shown in Figure 4.
It is to say, as preferably, the extended line of the centrage of spray apertures and the outlet of interior ring cavity 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 the
One-level quenching apparatus.
As it is shown in figure 1, high-temperature flue gas literary composition formula rapid-cooling heat exchanger, also include 3, two grades of quenching apparatus of dash ring flat-plate
4, venturi mixer 21, separation chamber 22 and tank 23.
Two grades of quenching apparatus are arranged on downstream, i.e. flue gas first passes through quenching ring 2, fills through two grades of chillings the most again
Put.
As it is shown on figure 3, two grades of quenching apparatus 4 are by guiding coil pipe 8, along the atomization spray guiding coil pipe distribution
Mouth 10 and the center atomizer 11 being arranged on positioning disk tube hub form.Described atomizer 10 and guiding
Coil pipe is connected and extends to guiding coil pipe 8 center from guiding coil pipe 8, and described center atomizer 11 leads to
Cross and connect with guiding coil pipe 8 communicating pipe 31, guide coil pipe 8 and will pass through communicating pipe 31, fluid is passed to
Center atomizer.
As preferably, the fluid of cooled flue gas is alkali liquor.Circulation alkali liquor is the process of smoke contacts, gasification
In, can effectively absorb the sour gas in flue gas.
Alkali liquor is distributed uniformly to each atomizing lance by the alkali liquor of two grades of quenching apparatus 4 by guiding coil pipe 8,
Alkali liquor after atomizer 10-11 is atomized sprays into the converging transition of venturi mixing chamber 21, and through one-level chilling
Flue gas after device 2 cooling mixes further.
By classification, flue gas being carried out chilling, high-temperature flue gas is after the preliminary desuperheat of chilling ring 2, then is sprayed by atomization
Mouth carries out two grades of coolings, the stability of intensifier.
Atomizer is arranged at gas approach, arranges guiding coil pipe 8 at literary composition formula quencher converging transition, makes atomization
Nozzle 10 is uniformly distributed, and is provided with center atomizer 11, and fogged lye can be completely covered exhaust gases passes, keeps away
Exempt from that local temperature is too high causes damage to equipment.
Further preferably, described is the even number not less than 4 along guiding coiled tube arrangements 8 atomizer 10 quantity,
And uniformly, liquidate layout.
As preferably, described dash ring flat-plate 3 is arranged between quenching ring 2 and two grades of quenching apparatus 4, gear
Water ring plate 3 is connected with the inwall of housing 5 and stretches out from inwall.
Atomizer is arranged over dash ring flat-plate 3, makes the moisture film of inner walls change through dash ring flat-plate and flows to,
Atomizer upper surface forms continuous print moisture film, effectively prevent high-temperature flue gas and washes away atomizer and cause
Damage.
As preferably, along flow of flue gas direction, multiple two grades of quenching apparatus 4 can be set.As preferably,
Along flow of flue gas direction, in two grades of quenching apparatus 4, the quantity of atomizer 10 is gradually increased.As preferably,
The amplitude being gradually increased is increasing.Main cause is similar to arranging of spray apertures 14, the most further retouches
State.It is found through experiments, by above-mentioned setting, the heat exchange amount of 15%-20% can be improved.
As preferably, along flow of flue gas direction, multiple two grades of quenching apparatus 4 can be set.As preferably,
Along flow of flue gas direction, in two grades of quenching apparatus 4, the spray amount of atomizer 10 is gradually increased.As excellent
Choosing, the amplitude being gradually increased is increasing.Main cause is similar to arranging of spray apertures 14, the most no longer enters one
Step describes.It is found through experiments, by above-mentioned setting, the heat exchange amount of 15%-20% can be improved.
Use the present invention so that the high-temperature flue gas of more than 1100 DEG C from top to bottom, is entered urgency by smoke inlet 1
Cooler, passes sequentially through one-level quenching apparatus 2 and two grades of quenching apparatus 4, high-temperature flue gas directly be atomized after follow
, there is heat transfer and mass transfer, high-temperature flue gas be rapidly decreased to water-vapo(u)r saturation temperature 81 DEG C in the contact of ring alkali liquor, vaporization,
Discharged by the exhanst gas outlet 6 of separation chamber 23.
The present invention is with a large amount of circulation alkali liquors and smoke contacts, vaporization, it is possible to quickly, uniformly, reduce efficiently
Flue-gas temperature.
Present invention obviates the regeneration temperature range of two English, 1400 DEG C or above high temperature cigarette can be will be up to
Gas is directly down to water-vapo(u)r saturation temperature.
As preferably, quenching ring 2,5, two grades of quenching apparatus 4 of housing all use Hastelloy C alloys-276, housing
Inside can be not provided with refractory material, reduces the volume of equipment.
Venturi quencher is combined as a whole with tank, decreases the floor space of equipment.
As preferably, described converging transition 24 and divergent segment 26 are round table-like, and trunnion section 25 is converging transition 24
And the connecting portion between divergent segment 26.
As preferably, described divergent segment 26 bottom arranges separation chamber 22 and tank 23, and exhanst gas outlet is arranged on
The lower end of described separation chamber 22.
Flue gas mixed with alkali liquor passes through converging transition, and sectional area from the coarse to fine, accelerates flue gas flow rate, at height
Produce low pressure near the flue gas of speed flowing, thus produce adsorption, strengthen disturbing of flue gas and fogged lye
Dynamic, increase the contact area of alkali liquor and flue gas, make flue gas reach uniform with fogged lye within the extremely short time
Mixing.
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 height
Alkali liquor amount needed for temperature flue gas cool-down, makes flue gas can connect with more fogged lye within the regular hour
Touch, substantially reduce flue gas and fogged lye heat transfer, the time of mass transfer.
Flue gas after cooling can carry substantial amounts of steam, and the steam being carried is taken out of through exhanst gas outlet 6 with flue gas
Literary composition formula quencher, causes quantity of circulating water to be gradually lowered, therefore arranges industry water moisturizing, by the liquid level of tank 23
Control rate of water make-up.
During chilling, the most of sour gas in flue gas is absorbed by circulation alkali liquor, the PH of circulation fluid
Value reduces, and needs regular discharge opeing, to reduce the concentration of sour gas in circulation alkali liquor, and is controlled alkali liquor by pH value
Increment, to ensure that circulation fluid is in alkaline environment.
Tank of the present invention is provided with pH value monitoring device, by measuring the pH value of alkali liquor, controls 5% concentration alkali liquor
Increment.
For ensureing the minimum circulating load of alkali liquor, it is possible to reach requirement, water-vapo(u)r saturation temperature will be down to by high-temperature flue gas
Degree, is provided with bunch grade adjustment device, arranges temperature monitor at exhanst gas outlet respectively, arranges on pipeloop
Flow detector, is used for regulating the circulating load of alkali liquor.When temperature is too high or cooling water flow is too low, can lead to
Cross the flow increasing cooling alkali liquor, to protect upstream device.
Although the present invention discloses as above with preferred embodiment, but the present invention is not limited to this.Any ability
Field technique personnel, without departing from the spirit and scope of the present invention, all can make various changes or modifications, therefore
Protection scope of the present invention should be as the criterion with claim limited range.
Claims (4)
1. a rapid-cooling heat exchanger for multiple secondary heat exchange is set, including housing, chilling ring, dash ring flat-plate, two grades of urgency
Device for cooling, described chilling ring, dash ring flat-plate, two grades of quenching apparatus are arranged in housing, and flue gas is from heat exchanger
Entrance enters, and sequentially passes through chilling ring, dash ring flat-plate, two grades of quenching apparatus, it is characterised in that along cigarette
Flow of air direction, arranges multiple two grades of quenching apparatus.
2. rapid-cooling heat exchanger as claimed in claim 1, it is characterised in that atomization spray is set in two grades of quenching apparatus
Mouth, along flow of flue gas direction, in two grades of quenching apparatus, the spray amount of atomizer is gradually increased.
3. rapid-cooling heat exchanger as claimed in claim 2, it is characterised in that along flow of flue gas direction, spray amount
The amplitude being gradually increased is increasing.
4. the rapid-cooling heat exchanger as described in one of claim 1-3, it is characterised in that two grades of quenching apparatus are by leading
To coil pipe, along guiding the atomizer of coil pipe distribution and being arranged on the center atomizer of positioning disk tube hub
Composition, described atomizer is connected and to guiding the extension of coil pipe center, described center with guiding coil pipe
Atomizer was connected with guiding coil pipe by communicating pipe, guided coil pipe to be passed to by fluid by communicating pipe
Center atomizer.
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 |
|---|---|---|---|
| CN201510476113.3A CN105043131B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of cooled flue gas |
| CN201610343786.6A 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 |
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| 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 true CN105928382A (en) | 2016-09-07 |
| CN105928382B CN105928382B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610275905.9A Expired - Fee Related CN105865222B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger |
| CN201510476113.3A Active CN105043131B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of cooled flue gas |
| CN201610343529.2A Expired - Fee Related CN106016324B (en) | 2015-08-06 | 2015-08-06 | A kind of flue gas rapid-cooling heat exchanger |
| CN201610343786.6A Active CN105928382B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger provided with multiple secondary heat exchange devices |
| 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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| Application Number | Title | Priority Date | Filing Date |
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| CN201610275905.9A Expired - Fee Related CN105865222B (en) | 2015-08-06 | 2015-08-06 | Quenching heat exchanger |
| CN201510476113.3A Active CN105043131B (en) | 2015-08-06 | 2015-08-06 | A kind of rapid-cooling heat exchanger of cooled flue gas |
| CN201610343529.2A Expired - Fee Related CN106016324B (en) | 2015-08-06 | 2015-08-06 | A kind of flue gas rapid-cooling heat exchanger |
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| 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113615742A (en) * | 2020-05-06 | 2021-11-09 | 丰益(上海)生物技术研发中心有限公司 | Processing technology of margarine |
Families Citing this family (8)
| 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 |
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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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- 2015-08-06 CN CN201610275905.9A patent/CN105865222B/en not_active Expired - Fee Related
- 2015-08-06 CN CN201510476113.3A patent/CN105043131B/en active Active
- 2015-08-06 CN CN201610343529.2A patent/CN106016324B/en not_active Expired - Fee Related
- 2015-08-06 CN CN201610343786.6A patent/CN105928382B/en active Active
- 2015-08-06 CN CN201610275904.4A patent/CN105928381B/en active Active
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| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105865222A (en) | 2016-08-17 |
| CN105928381A (en) | 2016-09-07 |
| CN106016324B (en) | 2017-08-25 |
| CN105928382B (en) | 2017-04-12 |
| CN105043131B (en) | 2016-09-28 |
| CN105043131A (en) | 2015-11-11 |
| CN105865222B (en) | 2017-02-22 |
| CN106016324A (en) | 2016-10-12 |
| CN105928381B (en) | 2018-01-26 |
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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. |