CN207175519U - A kind of evaporator for waste water evaporation - Google Patents
A kind of evaporator for waste water evaporation Download PDFInfo
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- CN207175519U CN207175519U CN201721168487.XU CN201721168487U CN207175519U CN 207175519 U CN207175519 U CN 207175519U CN 201721168487 U CN201721168487 U CN 201721168487U CN 207175519 U CN207175519 U CN 207175519U
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- evaporator
- waste water
- changeover portion
- necking down
- spray gun
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Abstract
A kind of evaporator for waste water evaporation, belong to waste water evaporation process technical field.The utility model is poor in order to solve existing desulphurization system water treatment effect, the problem of being unable to reach wastewater treatment standard.The utility model includes evaporator ash bucket, evaporator inlet section, necking down changeover portion, cone bucket expansion segment, evaporator section and eddy flow rectifier, the side of evaporator inlet section is provided with air intake flue, the lower end connection evaporator ash bucket of evaporator inlet section, the upper end connection necking down changeover portion of evaporator inlet section, the upper end of necking down changeover portion is connected with cone bucket expansion segment, cone bucket expansion segment upper end is connected with evaporator section, and the top-side of evaporator section is provided with exhaust pass, and eddy flow rectifier is arranged on inside necking down changeover portion.Desulfurization wastewater is evaporated to solid particle and water in evaporator of the present utility model, realizes the evaporation process of desulfurization wastewater.
Description
Technical field
A kind of waste water evaporator is the utility model is related to, belongs to waste water evaporation process technical field.
Background technology
In the wet flue gas desulfurizer running of thermal power plant, a certain amount of waste water can be produced.Boiler smoke air humidity
Method desulfurization (limestone/gypsum method) wastewater source caused by process discharges water in absorption tower, in order to maintain desulfurizer slurries to follow
The balance of loop system material, prevent that soluble fraction i.e. chlorine ion concentration exceedes setting and ensures gypsum quality in flue gas, it is necessary to
A certain amount of waste water is discharged from system, waste water is essentially from gypsum dehydration and purging system.
Desulfuration waste water treatment process mainly handles the first kind and the second pollutant at present, the major processes used for
Physical-chemical process.Technological process is the mould zoomed in and out with foreign countries on the basis of the application of China's power plant desulfurization wastewater handling process
Formula.Desulfurization wastewater is weakly acidic high-salt wastewater, handling process mainly for material be heavy metal ion, acid group, halogen family from
Son and solid suspension.For desulfurization wastewater water quality characteristicses set complete set chemical processing system, by oxidation, in
With, precipitation, flocculation etc. process remove desulfurization wastewater in pollutant.Domestic desulphurization system almost employs this method, the work
Skill shortcoming is system complex, and number of devices is more, and working environment is poor, and initial cost is high, and service requirement is high, careless slightly just to occur
Waste water after processing still can not be up to standard situation.
Utility model content
The purpose of this utility model is poor in order to solve existing desulphurization system water treatment effect, is unable to reach wastewater treatment
The problem of standard, and then a kind of evaporator for waste water evaporation is provided.
The technical solution of the utility model：
A kind of evaporator for waste water evaporation includes evaporator ash bucket, evaporator inlet section, necking down changeover portion, cone bucket and expanded
Open section, evaporator section, eddy flow rectifier, first order double fluid spray gun body and second level double fluid spray gun body, described evaporator inlet section
Side be provided with air intake flue, the lower end connection evaporator ash bucket of evaporator inlet section, the upper end connection contracting of evaporator inlet section
Neck changeover portion, the upper end of described necking down changeover portion are connected with cone bucket expansion segment, and cone bucket expansion segment upper end is connected with evaporator section, institute
The top-side for the evaporator section stated is provided with exhaust pass, and described eddy flow rectifier is arranged on inside necking down changeover portion, described
Cone bucket expansion segment in be disposed with first order double fluid spray gun body and second level double fluid spray gun body.
Preferably：Described eddy flow rectifier is arranged on the porch of necking down changeover portion, and eddy flow rectifier sets covering contracting
Neck changeover portion porch cross section.
Preferably：Described necking down changeover portion is cylindrical structural, and the diameter of necking down changeover portion is less than evaporator inlet section
Diameter.
Preferably：Described eddy flow rectifier includes straightener(stator) blade, rectifier central tube, cross reinforcement and center cover
Plate, described rectifier central tube are arranged at the entrance center of necking down changeover portion, and rectifier central tube passes through cross reinforcement
Support is fixed, and described straightener(stator) blade is along rectifier central tube circumference uniform distribution, and described rectifier central tube upper and lower end parts are in
Heart cover plate is closed.
Preferably：Described straightener(stator) blade is circumferentially equal according to the spacing at 30 degree of angles of adjacent blades around rectifier central tube
The angle of cloth, straightener(stator) blade and horizontal plane is 45 degree.
Preferably：Described first order double fluid spray gun body and second level double fluid spray gun body include gun barrel, feed tube, air inlet
Pipe and nozzle, gun barrel are provided with flange, and described gun barrel is sleeve type structure, including liquid pipe and tracheae, liquid pipe are worn from tracheae
Cross, air inlet pipe is connected with tracheae, and the other end of gun barrel is connected with nozzle.
Preferably：Described first order double fluid spray gun body and second level double fluid spray gun body is arranged on cone bucket by flange and expanded
In the side wall of section, the gun barrel of described first order double fluid spray gun body and second level double fluid spray gun body is slidably installed with respect to flange, leads to
Sliding position of the gun barrel with respect to flange is overregulated, and then eject position of the nozzle in cone bucket expansion segment can be adjusted.
Preferably：The head of described nozzle is circular cone structure, and the inclined-plane of the frustum of a cone is provided with spray orifice.
Preferably：Described spray orifice spray angle is 20 ° -90 °.
The utility model has the advantages that：It is of the present utility model it is a kind of for waste water evaporation evaporator have with
Lower advantage：
1st, will be de- in evaporator of the present utility model by using outer flue gas all the way or the hot-air of drawing as evaporation thermal source
Sulphur waste water is evaporated to solid particle and water, realizes the evaporation process of desulfurization wastewater；
2nd, caused solid particle is trapped by the deduster in backend flow, the part as boiler fly ash；
3rd, evaporator evaporator outlet temperature in design considers according to exhaust gas temperature.Therefore mixed with boiler smoke
Temperature do not reduce, bad influence will not be caused to follow-up deduster；
4th, be void tower structure for evaporator as a whole, resistance is smaller, the flowing of flue gas by evaporator upstream and downstream pressure
Difference, without increasing Fan Equipment newly, there is no bad influence to the overall resistance of boiler, desulfurization wastewater is realized with less cost
Evaporation process.
Brief description of the drawings
Fig. 1 is a kind of structure layout view of the evaporator for waste water evaporation；
Fig. 2 is the top view of eddy flow rectifier；
Fig. 3 is sectional view at A-A in Fig. 2；
Fig. 4 is the overall structure figure of first order double fluid spray gun body and second level double fluid spray gun body；
1- evaporators ash bucket in figure, 2- evaporator inlet sections, 3- necking down changeover portions, 4- cone bucket expansion segments, 5- evaporator sections, 6-
Eddy flow rectifier, 7- first order double fluid spray gun bodies, 8- second level double fluid spray gun body, 9- air intake flues, 10- exhaust pass, 12- are whole
Flow blade, 13- rectifier central tubes, 14- cross reinforcements, 15- central tube cover plates, 16- gun barrels, 17- feed tubes, 18- air inlets
Pipe, 19- nozzles, 20- flanges, 21- spray orifices, 22- liquid pipes, 23- tracheaes.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1-Fig. 4, one kind of present embodiment is evaporated for waste water
Evaporator to include evaporator ash bucket 1, evaporator inlet section 2, necking down changeover portion 3, cone bucket expansion segment 4, evaporator section 5, eddy flow whole
Stream device 6, first order double fluid spray gun body 7 and second level double fluid spray gun body 8, the side of described evaporator inlet section 2 are provided with air intake
Flue 9, the lower end connection evaporator ash bucket 1 of evaporator inlet section 2, the upper end connection necking down changeover portion 3 of evaporator inlet section 2,
The upper end of described necking down changeover portion 3 is connected with cone bucket expansion segment 4, and the upper end of cone bucket expansion segment 4 is connected with evaporator section 5, described
The top-side of evaporator section 5 is provided with exhaust pass 10, and described eddy flow rectifier 6 is arranged on inside necking down changeover portion 3, described
Cone bucket expansion segment 4 in be disposed with first order double fluid spray gun body 7 and second level double fluid spray gun body 8.It is arranged such, the steaming of evaporator
300 DEG C or so of high-temperature flue gas or 300 DEG C or so hot-airs can be selected in pyrotoxin.Air intake flue 9 is located at bottom air inlet section cylinder
Side, air inlet section barrel diameter is 1.2 times of air inlet flue diameter, and flow velocity is reduced to the 70% of original flow velocity；Described waste water
Evaporator as a whole is void tower container, and its underpart is cylindrical evaporation device entrance 2, and waste water is connected immediately below evaporator inlet section 2
Evaporator ash bucket 1, the side of evaporator inlet section 2 connection air intake flue 9, the surface of evaporator inlet section 2 connection necking down changeover portion
3, flow velocity compares and accelerated in evaporator inlet section 2 in necking down changeover portion 3, in necking down changeover portion 3 as cylinder
Structure, diameter are less than evaporator inlet section 2, and the eddy flow rectifier 6 of covering total cross-section, eddy flow are set in the entrance of necking down changeover portion 3
6, rectifier accelerates the flue gas or heat with the rectification of eddy flow rectifier 6 as eddy flow stator blade fan structure by necking down changeover portion 3
Air enters cone bucket expansion segment 4, arrangement first order double fluid spray gun body 7 and second level double fluid spray gun body 8 in cone bucket expansion segment 4,
Arrange that one-level or two-stage spray gun depend on the size of wastewater flow rate, it is strong by eddy flow 6 eddy flows of rectifier in cone bucket expansion segment, 4
The waste water drop that the flue gas or hot-air of change spray with first order double fluid spray gun body 7 and the atomization of second level double fluid spray gun body 8 is carried out
Strong mixing evaporation, in the process, with flue gas or stream of hot air to, the diameter of cone bucket expansion segment 4 gradually increases, flue gas or
Hot-air flow velocity is gradually reduced, and is added incorporation time and the residence time of waste water drop and flue gas or hot-air, is advantageous to steam
The abundant progress of hair process；
The upper outlet of cone bucket expansion segment 4 is connected with cylindrical evaporation section 5, and cylindrical evaporation section 5 is one section of longer circle
Cylindrical channel, two-stage spray gun are down current arrangement, and waste water drop is mixed with flue gas or hot-air and is evaporated in cylindrical evaporation section 5
Entirely, partially crystallizable particle with flue gas from bottom to top via cone bucket expansion segment 4 and cylindrical evaporation section 5, and by being arranged on cylinder
The exhaust pass 10 of the upper side of evaporator section 5 is discharged, and separately has partially crystallizable particle to be settled down in bottom ash 1, through the bottom of ash bucket 1
Pipeline valve is discharged.
Embodiment two：Illustrate present embodiment with reference to Fig. 1-Fig. 3, one kind of present embodiment is evaporated for waste water
Evaporator described in eddy flow rectifier 6 be arranged on the porch of necking down changeover portion 3, eddy flow rectifier 6 sets covering necking down
Cross the porch cross section of section 3；Described eddy flow rectifier 6 includes straightener(stator) blade 12, rectifier central tube 13, cross reinforcement 14
With central tube cover plate 15, described rectifier central tube 13 is arranged at the entrance center of necking down changeover portion 3, rectifier central tube
13 support fixation by cross reinforcement 14, and for described straightener(stator) blade 12 along the circumference uniform distribution of rectifier central tube 13, described is whole
The upper and lower end parts of stream device central tube 13 are closed by central tube cover plate 15.It is arranged such, flue gas enters necking segment through air intake flue
At initial stage, being sufficiently mixed for flue gas flow field is carried out by the eddy flow rectifier 6 of the porch of necking down changeover portion 3, flue gas now
In fine solid particle and drop strong mixing occur with the waste water drop sprayed from Fluid sprayer evaporate.
Embodiment three：Illustrate present embodiment, a kind of steaming for waste water evaporation of present embodiment with reference to Fig. 1
Necking down changeover portion 3 described in hair device is cylindrical structural, and the diameter of necking down changeover portion 3 is less than the diameter of evaporator inlet section 2.Such as
This is set, and flue gas flow rate compares and accelerated in evaporator inlet section 2 in necking down changeover portion 3, the diameter of necking down changeover portion 3
Compression flue gas was both facilitated less than evaporator inlet section 2, and had been easy to be connected with cone bucket expansion segment 4 again.
Embodiment four：Illustrate present embodiment, a kind of steaming for waste water evaporation of present embodiment with reference to Fig. 2
Straightener(stator) blade 12 described in hair device is uniformly distributed along the circumference around rectifier central tube 13 according to the spacing at 30 degree of angles of adjacent blades, rectification
The angle of blade 12 and horizontal plane is 45 degree.It is arranged such, straightener(stator) blade 12 is around rectifier central tube 13 according to adjacent blades
The spacing at 30 degree of angles is uniformly distributed along the circumference, while the angle of straightener(stator) blade 12 and horizontal plane is 45 degree, that is, forms one and gradually receive
Contracting and the exhaust gases passes reduced, with the gradually tapering up of straightener(stator) blade 12, are gradually reduced, and make close to the tube wall of evaporator inlet section 2
The relatively low flue gas flue gas higher with the speed close to the center flow of evaporator inlet section 2 of speed mixed, form mixed flow,
The flue gas that script flue gas fluidised form is more chaotic, VELOCITY DISTRIBUTION gradient is larger is so allowed for, shrinks rectification by eddy flow rectifier 6
Afterwards, VELOCITY DISTRIBUTION is uniform, on the other hand, it is also possible that the flue gas that the asymmetrical VELOCITY DISTRIBUTION such as bias current, rotating flow is chaotic
Fluidised form, after song is shunk by the straightener(stator) blade 12 of eddy flow rectifier 6, corrected, it is more uniform so as to obtain VELOCITY DISTRIBUTION
Fluid flow state so that fluid can in shorter rectification section make it that flue gas fluid flow state is stable.
Embodiment five：Illustrate present embodiment, a kind of steaming for waste water evaporation of present embodiment with reference to Fig. 4
Sending out the first order double fluid spray gun body 7 described in device and second level double fluid spray gun body 8 includes gun barrel 16, feed tube 17, air inlet pipe 18
With nozzle 19, gun barrel 16 is provided with flange 20, and described gun barrel 16 is sleeve type structure, including liquid pipe 22 and tracheae 23, liquid pipe
22 are passed through from tracheae 23, and air inlet pipe 18 is connected with tracheae 23, and the other end of gun barrel 16 is connected with nozzle 19；Described nozzle 19
Head be circular cone structure, the inclined-plane of the frustum of a cone is provided with spray orifice 21；The described spray angle of spray orifice 21 is 20 ° -90 °.So
Set, double-current spray gun body, be atomized using gas-liquid two-phase, use air as second fluid, three-level atomization mechanism, compare conventional lance
Highly efficient, efficient design is designed, compressed air dosage is few, fog pattern：Full cone or flat fan, pulverability：It is extremely equal
Even and fineization, D32≤50 μm, material use the alloy of cobalt 6, adapt to 5%~30% solid content, avoid spray gun from wearing, using preceding mixed side
Formula, effectively reduce spray nozzle clogging risk.
Embodiment six：Illustrate present embodiment, a kind of steaming for waste water evaporation of present embodiment with reference to Fig. 4
Send out the side that the first order double fluid spray gun body 7 described in device and second level double fluid spray gun body 8 are arranged on cone bucket expansion segment 4 by flange 20
On wall, the gun barrel 16 of described first order double fluid spray gun body 7 and second level double fluid spray gun body 8 is slidably installed with respect to flange 20, leads to
Sliding position of the gun barrel 16 with respect to flange is overregulated, and then eject position of the nozzle 19 in cone bucket expansion segment 4 can be adjusted.Such as
This is set, the flue gas or hot-air and first order double fluid spray gun body strengthened in cone bucket expansion segment by eddy flow rectifier eddy flow and
The waste water drop that second level double fluid spray gun body atomization sprays carries out strong mixing evaporation, first order double fluid spray gun body 7 and second
The gun barrel 16 of the double-current spray gun body 8 of level slides with respect to flange 20 allows eject position of the nozzle 19 in cone bucket expansion segment 4 to enter
Row controllable adjustable, put according to the evaporation spraying that smoke distribution requires to determine optimization.
The utility model by using flue gas all the way or hot-air is drawn as evaporation thermal source outside, in evaporation of the present utility model
Desulfurization wastewater is evaporated to solid particle and water in device, realizes the evaporation process of desulfurization wastewater.Caused solid particle is by rear
Deduster trapping in Duan Liucheng, the part as boiler fly ash.Evaporator design when evaporator outlet temperature according to
Exhaust gas temperature considers.Therefore the temperature mixed with boiler smoke does not reduce, and follow-up deduster will not be caused bad
Influence.It is void tower structure for evaporator as a whole, resistance is smaller, and the flowing of flue gas is by the pressure differential of evaporator upstream and downstream, nothing
Fan Equipment need to be increased newly, do not have bad influence to the overall resistance of boiler.The steaming of desulfurization wastewater is realized with less cost
Hair processing.
Present embodiment is the exemplary illustration to this patent, does not limit its protection domain, people in the art
Member can also be changed to its part, as long as no the Spirit Essence beyond this patent, all in the protection domain of this patent.
Claims (9)
- A kind of 1. evaporator for waste water evaporation, it is characterised in that：Including evaporator ash bucket (1), evaporator inlet section (2), Necking down changeover portion (3), cone bucket expansion segment (4), evaporator section (5), eddy flow rectifier (6), first order double fluid spray gun body (7) and second The double-current spray gun body (8) of level, the side of described evaporator inlet section (2) are provided with air intake flue (9), evaporator inlet section (2) Lower end connection evaporator ash bucket (1), the upper end connection necking down changeover portion (3) of evaporator inlet section (2), described necking down changeover portion (3) upper end is connected with cone bucket expansion segment (4), and cone bucket expansion segment (4) upper end is connected with evaporator section (5), described evaporator section (5) Top-side be provided with exhaust pass (10), it is internal that described eddy flow rectifier (6) is arranged on necking down changeover portion (3), described First order double fluid spray gun body (7) and second level double fluid spray gun body (8) are disposed with cone bucket expansion segment (4).
- A kind of 2. evaporator for waste water evaporation according to claim 1, it is characterised in that：Described eddy flow rectifier (6) porch of necking down changeover portion (3) is arranged on, eddy flow rectifier (6) sets covering necking down changeover portion (3) porch transversal Face.
- A kind of 3. evaporator for waste water evaporation according to claim 2, it is characterised in that：Described necking down changeover portion (3) it is cylindrical structural, the diameter of necking down changeover portion (3) is less than the diameter of evaporator inlet section (2).
- A kind of 4. evaporator for waste water evaporation according to claim 1, it is characterised in that：Described eddy flow rectifier (6) straightener(stator) blade (12), rectifier central tube (13), cross reinforcement (14) and central tube cover plate (15) are included, described is whole Stream device central tube (13) is arranged at the entrance center of necking down changeover portion (3), and rectifier central tube (13) passes through cross reinforcement (14) support is fixed, and described straightener(stator) blade (12) is along rectifier central tube (13) circumference uniform distribution, described rectifier central tube (13) upper and lower end parts are closed by central tube cover plate (15).
- A kind of 5. evaporator for waste water evaporation according to claim 4, it is characterised in that：Described straightener(stator) blade (12) it is uniformly distributed along the circumference around rectifier central tube (13) according to the spacing at 30 degree of angles of adjacent blades, straightener(stator) blade (12) and level The angle in face is 45 degree.
- A kind of 6. evaporator for waste water evaporation according to claim 1, it is characterised in that：Described first order double fluid Spray gun body (7) and second level double fluid spray gun body (8) include gun barrel (16), feed tube (17), air inlet pipe (18) and nozzle (19), Gun barrel (16) is provided with flange (20), and described gun barrel (16) is sleeve type structure, including liquid pipe (22) and tracheae (23), liquid pipe (22) passed through from tracheae (23), air inlet pipe (18) is connected with tracheae (23), and the other end of gun barrel (16) is connected with nozzle (19).
- A kind of 7. evaporator for waste water evaporation according to claim 6, it is characterised in that：Described first order double fluid Spray gun body (7) and second level double fluid spray gun body (8) are arranged on by flange (20) in the side wall of cone bucket expansion segment (4), described The gun barrel (16) of first order double fluid spray gun body (7) and second level double fluid spray gun body (8) is slidably installed with respect to flange (20), passes through tune Sliding position of the gun barrel (16) with respect to flange is saved, and then eject position of the nozzle (19) in cone bucket expansion segment (4) can be adjusted.
- A kind of 8. evaporator for waste water evaporation according to claim 7, it is characterised in that：Described nozzle (19) Head is circular cone structure, and the inclined-plane of the frustum of a cone is provided with spray orifice (21).
- A kind of 9. evaporator for waste water evaporation according to claim 8, it is characterised in that：Described spray orifice (21) spray Firing angle degree is 20 ° -90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721168487.XU CN207175519U (en) | 2017-09-12 | 2017-09-12 | A kind of evaporator for waste water evaporation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721168487.XU CN207175519U (en) | 2017-09-12 | 2017-09-12 | A kind of evaporator for waste water evaporation |
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| Publication Number | Publication Date |
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| CN207175519U true CN207175519U (en) | 2018-04-03 |
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| CN201721168487.XU Active CN207175519U (en) | 2017-09-12 | 2017-09-12 | A kind of evaporator for waste water evaporation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352609A (en) * | 2017-09-12 | 2017-11-17 | 哈尔滨锅炉厂环保工程技术有限公司 | A kind of evaporator for waste water evaporation |
-
2017
- 2017-09-12 CN CN201721168487.XU patent/CN207175519U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352609A (en) * | 2017-09-12 | 2017-11-17 | 哈尔滨锅炉厂环保工程技术有限公司 | A kind of evaporator for waste water evaporation |
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