CN107281931A - A kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank and its denitrating system - Google Patents
A kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank and its denitrating system Download PDFInfo
- Publication number
- CN107281931A CN107281931A CN201710679030.3A CN201710679030A CN107281931A CN 107281931 A CN107281931 A CN 107281931A CN 201710679030 A CN201710679030 A CN 201710679030A CN 107281931 A CN107281931 A CN 107281931A
- Authority
- CN
- China
- Prior art keywords
- ammoniacal liquor
- flue gas
- evaporation
- evaporator
- surge tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 235000011114 ammonium hydroxide Nutrition 0.000 title claims abstract description 64
- 238000001704 evaporation Methods 0.000 title claims abstract description 47
- 230000008020 evaporation Effects 0.000 title claims abstract description 44
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000003546 flue gas Substances 0.000 title claims abstract description 29
- 230000003139 buffering effect Effects 0.000 title claims abstract description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 90
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 45
- 239000007789 gas Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 13
- 238000010790 dilution Methods 0.000 claims description 10
- 239000012895 dilution Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000010025 steaming Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 241000521257 Hydrops Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The present invention provides a kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank and its denitrating system, including ammoniacal liquor evaporator and it is arranged at the ammonia vapor surge tank on ammoniacal liquor evaporator top, the ammoniacal liquor evaporator is provided with the ammoniacal liquor input pipe for inputting ammoniacal liquor including housing and housing bottom, housing central section is provided with the evaporation device for evaporating ammoniacal liquor, the housing cavity top of the ammoniacal liquor evaporator and ammonia vapor surge tank inner space UNICOM, there is gas outlet at the top of the ammonia vapor surge tank, the present invention is simple in construction, denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank uses integral structure, the pollution that the evaporation region that the ammoniacal liquor of condensation can be fallen after rise to bottom is evaporated without outer row again, in addition, a kind of flue gas denitrification system in the present invention realizes the safe and efficient progress to SCR denitrating flue gas by using denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank.
Description
Technical field
The present invention relates to a kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank and its denitrating system.
Background technology
Usually need ammonia to carry out reaction with nitrogen oxides in the method for denitrating flue gas and realize denitration, and obtain the side of ammonia
Method is general by ammoniacal liquor evaporation process or liquefied ammonia, because storage container, the movement requirement of liquefied ammonia are higher and security is more unstable
It is fixed, and A leak of liquefied ammonia evaporation collects difficult, damaging range is big, and another is to use ammoniacal liquor, and ammoniacal liquor leakage is easily reclaimed and endangered
Region is small, as shown in figure 1, the existing method that ammoniacal liquor is converted into ammonia is by the way that ammoniacal liquor evaporation 101 is entered by pipeline again
Enter in a surge tank 102, then will be reacted by surge tank after ammonia and steam mixture output post processing, this reaction
Mode easily easily flows back to bottom formation hydrops in the ammoniacal liquor of buffering top tank structure condensation and can not cleared up, and influences follow-up ammonia to exist
Discharge in surge tank, also easily causes A leak of liquefied ammonia.
The content of the invention
The present invention is improved above mentioned problem, i.e., the technical problem to be solved in the present invention is existing denitrating flue gas ammonia
Water evaporation mode easily produces leakage and evaporation and diffusion, and hazard area is big.
Specific embodiments of the present invention are：A kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank, including ammoniacal liquor evaporator
And the ammonia vapor surge tank on ammoniacal liquor evaporator top is arranged at, the ammoniacal liquor evaporator includes housing and housing bottom is provided with
Ammoniacal liquor input pipe for inputting ammoniacal liquor, housing central section is provided with the evaporation device for evaporating ammoniacal liquor, the ammoniacal liquor evaporator
There is gas outlet at the top of housing cavity top and ammonia vapor surge tank inner space UNICOM, the ammonia vapor surge tank.
Further, the evaporation device includes upper sealing plate and lower shrouding, is provided between the upper sealing plate and lower shrouding
Ammonia evaporation tube, the ammonia evaporation tube upper and lower ends respectively with lower shrouding below and upper sealing plate above space UNICOM, upper envelope
Region between plate and lower shrouding forms evaporation chamber, the housing sidepiece have with the steam input pipe of evaporation chamber UNICOM and
Condensate output transistor.
Further, it is provided with control valve on steam input pipe and the ammoniacal liquor input pipe.
Further, the ammonia vapor surge tank is provided with pressure sensor and liquid level gauge.
Present invention additionally comprises a kind of flue gas denitrification system, including a kind of denitrating flue gas ammoniacal liquor evaporation and buffering one as described above
Body tank, it is characterised in that the warm pipeline in gas outlet of the ammonia vapor surge tank is connected with blender, the blender
One end is connected with dilution air, and the blender other end is connected with jet grid by the road.
Further, the utilidor includes setting steam companions outside pipeline body, the pipeline body.
Further, the dilution air is provided with the sky that air is blown into for heating dilution air with blender connection position
Gas heater.
Further, the jet grid include it is arranged in a crossed manner and with described in the jet pipe of blender outlet side UNICOM on jet pipe
With spout.
Compared with prior art, the invention has the advantages that：The present invention is simple in construction, the evaporation of denitrating flue gas ammoniacal liquor
Buffering integrative tank uses integral structure, and the evaporation region that the ammoniacal liquor of condensation can be fallen after rise to bottom is evaporated without outer again
The pollution of row, in addition, a kind of flue gas denitrification system in the present invention is real by using denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank
The safe and efficient progress to SCR denitrating flue gas is showed.
Brief description of the drawings
Fig. 1 is existing ammoniacal liquor vaporising device structural representation.
Fig. 2 is schematic structural view of the invention.
Fig. 3 is Steaming structure schematic top plan view of the present invention.
Fig. 4 is denitrating system attachment structure schematic diagram of the present invention.
Embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in figs. 2 to 4, a kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank, including ammoniacal liquor evaporator 10 and be arranged at
The ammonia vapor surge tank 20 on the top of ammoniacal liquor evaporator 10, the ammoniacal liquor evaporator 10 includes housing 110 and the bottom of housing 110 is set
The ammoniacal liquor input pipe 111 for inputting ammoniacal liquor is equipped with, the middle part of housing 110 is provided with the evaporation device for evaporating ammoniacal liquor, the ammonia
The housing cavity top of water evaporimeter and ammonia vapor surge tank inner space UNICOM.
In the present embodiment, the evaporation device includes upper sealing plate 121 and lower shrouding 122, the upper sealing plate 121 and lower shrouding
Be provided with ammonia evaporation tube 123 between 122, the upper and lower ends of ammonia evaporation tube 123 respectively with the lower lower section of shrouding 122 and upper envelope
The space UNICOM of the top of plate 121, the region between upper sealing plate 121 and lower shrouding 122 forms evaporation chamber, the side of housing 110
Portion has the steam input pipe 112 and condensate output transistor 113 with evaporation chamber UNICOM.
During work, ammoniacal liquor is inputted lower region between shrouding 122 and housing by ammoniacal liquor input pipe 111, and passes through evaporation tube
123 extend to the upper surface of upper sealing plate 121, and evaporate the steam in chamber due in the presence of upper sealing plate 121 and lower shrouding 122
It ensure that steam produces evaporation effect to the ammoniacal liquor in evaporation tube by evaporation tube and do not contacted with ammoniacal liquor, such ammonia is rising
During enter the inner chamber of ammonia vapor surge tank 20 of top, then the gas outlet set by the top of ammonia vapor surge tank 20
210 pass-outs.
The control in ammonia situation and ammoniacal liquor liquid level face in ammonia vapor surge tank 20, the steam input are monitored for convenience
Control valve is provided with pipe 112 and ammoniacal liquor input pipe 111, ammonia vapor surge tank 20 is provided with pressure sensor 220 and liquid level
Meter 230.
Because the ammoniacal liquor that the inner chamber of ammonia vapor surge tank 20 is condensed drops down onto the liquid of lower section upper sealing plate 121 under inwall meeting directly
Plane persistently evaporates, it is to avoid outer pollution discharging and hydrops occur.
As shown in figure 4, present invention additionally comprises a kind of flue gas denitrification system, including a kind of denitrating flue gas ammoniacal liquor as described above
Evaporation and buffering integrated tank, the warm pipeline 30 in gas outlet 210 of the ammonia vapor surge tank is connected with blender 40, described mixed
One end of clutch 40 is connected with dilution air 50, and the other end of blender 40 is connected with jet grid 60 by the road.
What ammonia vapor surge tank 20 was exported is the mixture of ammonia and vapor, and general pressure is 0.2Mpa, temperature
For 100~120 DEG C, in order to ensure the temperature of ammonia, the utilidor 30 includes setting outside pipeline body, the pipeline body
Steam companions is put, security is ensured in order to reduce ratio of the ammonia in blender, usually delays ammonia in ammonia vapor
17% or so rushed in tank 20 is reduced within 5% in blender, and the dilution air 50 is provided with the connection position of blender 40
The air heating apparatus of air is blown into for heating dilution air, air heating apparatus can blow by being arranged on dilution air 50
Heater strip at air port is realized.
Jet grid 60 include it is arranged in a crossed manner and with described in the jet pipe of blender outlet side UNICOM on jet pipe have spout, with
By ammonia and the mixture and smoke reaction of vapor.
If the present invention is open or relate to the parts or structural member of connection fastened to each other, then, unless otherwise stated,
It is fixedly connected and can be understood as：Can releasably it be fixedly connected (such as using bolt or mode connects for screw), it is understood that be：
Non-removable to be fixedly connected and (such as rivet, weld), certainly, connection fastened to each other (can also for example make for integral type structure
Manufactured with casting technique is integrally formed) replace (substantially can not be using except integrally formed technique).
In addition, being used for applied in any technical scheme disclosed in the invention described above represents the art of position relationship or shape
Its implication includes approximate with its, similar or close state or shape to language unless otherwise stated.
The either component that the present invention is provided can be assembled by multiple single parts, or one
The separate part that forming technology is manufactured.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among claimed technical scheme scope of the invention.
Claims (8)
1. a kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank, it is characterised in that including ammoniacal liquor evaporator and be arranged at ammoniacal liquor and steam
The ammonia vapor surge tank on device top is sent out, the ammoniacal liquor evaporator includes housing and housing bottom is provided with for inputting ammoniacal liquor
Ammoniacal liquor input pipe, housing central section be provided with make ammoniacal liquor evaporate evaporation device, the housing cavity top of the ammoniacal liquor evaporator with
There is gas outlet at the top of ammonia vapor surge tank inner space UNICOM, the ammonia vapor surge tank.
2. a kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank according to claim 1, it is characterised in that the evaporator
Mechanism includes upper sealing plate and lower shrouding, and ammonia evaporation tube, the ammonia evaporation tube are provided between the upper sealing plate and lower shrouding
Upper and lower ends are respectively with the space UNICOM below lower shrouding and above upper sealing plate, and the region between upper sealing plate and lower shrouding forms steaming
Chamber is sent out, the housing sidepiece has the steam input pipe and condensate output transistor with evaporator chamber UNICOM.
3. a kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank according to claim 2, it is characterised in that the steam is defeated
Enter and be provided with control valve on pipe and ammoniacal liquor input pipe.
4. a kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank according to claim 2, it is characterised in that the ammoniacal liquor steams
Vapour surge tank is provided with pressure sensor and liquid level gauge.
5. a kind of flue gas denitrification system, it is characterised in that including a kind of denitrating flue gas ammoniacal liquor as described in claim 2,3 or 4
Evaporation and buffering integrated tank, it is characterised in that the warm pipeline in gas outlet of the ammonia vapor surge tank is connected with blender, institute
The one end for stating blender is connected with dilution air, and the blender other end is connected with jet grid by the road.
6. a kind of flue gas denitrification system according to claim 5, it is characterised in that the utilidor includes pipeline sheet
Steam companions is set outside body, the pipeline body.
7. a kind of flue gas denitrification system according to claim 5 or 6, it is characterised in that the dilution air and blender
Connection position is provided with the air heating apparatus that air is blown into for heating dilution air.
8. a kind of flue gas denitrification system according to claim 5 or 6, it is characterised in that the jet grid includes intersecting
Set and with having spout described in the jet pipe of blender outlet side UNICOM on jet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679030.3A CN107281931A (en) | 2017-08-10 | 2017-08-10 | A kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank and its denitrating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679030.3A CN107281931A (en) | 2017-08-10 | 2017-08-10 | A kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank and its denitrating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107281931A true CN107281931A (en) | 2017-10-24 |
Family
ID=60105888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679030.3A Pending CN107281931A (en) | 2017-08-10 | 2017-08-10 | A kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank and its denitrating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107281931A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112246081A (en) * | 2020-09-30 | 2021-01-22 | 浙江蓝星环保设备有限公司 | Flue gas denitration device |
| CN114669193A (en) * | 2022-04-07 | 2022-06-28 | 天津中材工程研究中心有限公司 | Reducing agent supply system for low-temperature SCR denitration of cement plant and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0796141A (en) * | 1993-09-30 | 1995-04-11 | Hitachi Zosen Corp | Ammonia supply method in denitrification device |
| CN2889434Y (en) * | 2006-03-24 | 2007-04-18 | 成都凯益工程技术开发有限公司 | Circulated water liquid ammonia evaporator |
| CN102743889A (en) * | 2012-07-19 | 2012-10-24 | 北京中新国能环保科技有限公司 | Liquid ammonia evaporator and liquid ammonia evaporation system for flue gas denitration |
| CN205391760U (en) * | 2016-03-12 | 2016-07-27 | 湖北源丰化工有限公司 | Ammonia -acid process compound fertilizer production uses high -efficient liquid ammonia evaporator |
| CN207137692U (en) * | 2017-08-10 | 2018-03-27 | 福建鑫泽环保设备工程有限公司 | A kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank |
-
2017
- 2017-08-10 CN CN201710679030.3A patent/CN107281931A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0796141A (en) * | 1993-09-30 | 1995-04-11 | Hitachi Zosen Corp | Ammonia supply method in denitrification device |
| CN2889434Y (en) * | 2006-03-24 | 2007-04-18 | 成都凯益工程技术开发有限公司 | Circulated water liquid ammonia evaporator |
| CN102743889A (en) * | 2012-07-19 | 2012-10-24 | 北京中新国能环保科技有限公司 | Liquid ammonia evaporator and liquid ammonia evaporation system for flue gas denitration |
| CN205391760U (en) * | 2016-03-12 | 2016-07-27 | 湖北源丰化工有限公司 | Ammonia -acid process compound fertilizer production uses high -efficient liquid ammonia evaporator |
| CN207137692U (en) * | 2017-08-10 | 2018-03-27 | 福建鑫泽环保设备工程有限公司 | A kind of denitrating flue gas ammoniacal liquor evaporation and buffering integrated tank |
Non-Patent Citations (1)
| Title |
|---|
| 曾连辉: "氨水蒸发器在SCR脱硝装置上的运用", 《中国环保产业》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112246081A (en) * | 2020-09-30 | 2021-01-22 | 浙江蓝星环保设备有限公司 | Flue gas denitration device |
| CN114669193A (en) * | 2022-04-07 | 2022-06-28 | 天津中材工程研究中心有限公司 | Reducing agent supply system for low-temperature SCR denitration of cement plant and control method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |