CN110314453A - Drop collects the compensator of discharge after wet desulphurization - Google Patents
Drop collects the compensator of discharge after wet desulphurization Download PDFInfo
- Publication number
- CN110314453A CN110314453A CN201810273380.4A CN201810273380A CN110314453A CN 110314453 A CN110314453 A CN 110314453A CN 201810273380 A CN201810273380 A CN 201810273380A CN 110314453 A CN110314453 A CN 110314453A
- Authority
- CN
- China
- Prior art keywords
- compensator
- discharge
- wet desulphurization
- annular
- collecting 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
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 10
- 230000023556 desulfurization Effects 0.000 claims abstract description 10
- 230000004888 barrier function Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 4
- 229910052602 gypsum Inorganic materials 0.000 abstract description 9
- 239000010440 gypsum Substances 0.000 abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 14
- 239000003546 flue gas Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/18—Cleaning-out devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention is a kind of compensator of drop collection discharge after wet desulphurization, include the compensator ontology being set on desulfurization rear pass, also comprising before being respectively arranged on compensator ontology, adapter tube and compensator rear tube before the compensator of rear side, there are cricoid logical liquid gaps between preceding adapter tube and rear tube, the annular gear liquid portion extended on the inside of flue is set in the front end of rear tube, the collecting tank of annular is set on the outside of logical liquid gap, the outlet connected drainage pipe of the collecting tank, compensator structure of the invention is simple, hardly increasing system resistance, without changing chimney structure and increasing under seldom investment, it may be implemented in the drop for absorbing and being effectively discharged out in desulfurization rear pass and chimney while chimney and flue thermal expansion, to effectively eliminate or alleviate " gypsum rain " phenomenon.
Description
Technical field
The invention belongs to energy-saving and emission-reduction field, the coal-fired station's fume treatment being related in power industry is referred specifically to
It is the compensator that drop collects discharge after a kind of wet desulphurization.
Background technique
China's coal fired power plant mostly uses greatly Limestone-gypsum Wet Flue Gas Desulfurization Process technique at present, and the flue gas after desulfurization would generally reach
To saturation state, temperature is reduced to 45 DEG C~55 DEG C, and saturation wet flue gas is discharged from the chimney of inside lining anti-corrosive material, forms " wet cigarette
Chimney " emission scenary.If wet flue gas can form condensate liquid in discharge process, generate along with wet desulphurization without heating
The gypsum drop at large caught, when flue gas flow rate is larger, especially local temperature, air pressure it is lower or thick weather when
Between section, chimney breast flue gas will entrained drip exclude chimney, fall to the ground to form " gypsum rain ", power plant and surrounding enviroment produced
Raw pollution, or even corrosion equipment.
The source of " gypsum rain " mainly include from mist separator of desulfurization escape and undeposited gypsum drop, saturation wet flue gas it is exhausted
The drop of condensate liquid, smoke secondary entrainment generation that thermal expansion and contact flue and inner wall of stack are formed.Its severity is main
Whether it is heated by desulphurization system operation with the deviation of design, the performance of demister, flue gas, flue gas flow rate and inner wall of stack liquid
Whether drop the influence of factors such as can be discharged in time.
Flue-gas temperature in Wet chimney is higher than room temperature, and the thermal expansion of chimney and flue usually comes by the compensator of chimney entrance
It absorbs, and chimney entrance is often the better position in region and its discharge that condensate liquid and gypsum drop are more concentrated.
Summary of the invention
Technical problem solved by the invention is to provide that a kind of structure is simple, effectively can collect and be discharged the benefit of drop
Device is repaid, the gypsum drop and condensate liquid of wet desulphurization rear pass and inner wall of stack can be discharged in time.
The technology used in the present invention means are as follows.
Drop collects the compensator of discharge after a kind of wet desulphurization, includes the compensator sheet being set on desulfurization rear pass
Body, also comprising being respectively arranged on adapter tube and compensator rear tube before the compensator of the forward and backward side of compensator ontology, before compensator adapter tube and
There are cricoid logical liquid gap between compensator rear tube, the ring extended on the inside of flue is set in the front end of compensator rear tube
Shape keeps off liquid portion, and the collecting tank of annular, the outlet connected drainage pipe of the collecting tank are set on the outside of logical liquid gap.
Annular gear liquid portion is inclined annular liquid barrier, or the annular gear liquid angle steel to bend forwards forwards.
The annular liquid barrier makes an angle alpha with flue axis direction, and 30 °≤α≤90 °
The width of the annular collecting tank is not less than the axial width in logical liquid gap, and the axial width for leading to liquid gap is 100 ~
200mm。
The liquid collecting groove bottom is inclined-plane, is in angle β, and 0 °≤β≤45 ° with compensator axis direction.
The center line of the drain pipe and horizontal line are in angle γ, and 0 ° of γ≤60 ° <.
Compensator filler is filled between the annular collecting tank and compensator ontology.
The tail end connected drainage recyclable device of the drain pipe.
Back-purge system is set on the annular collecting tank and drain pipe.
It is had the beneficial effect that caused by the present invention.
1, the present invention had both absorbed the thermal expansion of chimney and flue by the improvement of compensator, kept off liquid portion further through annular
Drop in flue is collected in the annular collecting tank to compensator, draws chimney from drain pipe by liquid gravity.
2, to prevent collecting tank and drain blockage, back-purge system is set, periodically collecting tank and drain pipe are rushed
It washes.To prevent flue gas from escaping, fluid-tight is set in drain pipe bottom end.Multiple pressure transmitters are set on drain pipe, for monitoring
Whether collecting tank and drain pipe block.
3, compensator structure of the invention is simple, in hardly increase system resistance, without changing chimney structure and increasing
Add under seldom investment, it can be achieved that being effectively discharged out in desulfurization rear pass and chimney while absorbing chimney and flue thermally expands
Drop, to effectively eliminate or alleviate " gypsum rain " phenomenon.
Detailed description of the invention
Fig. 1 is the schematic view of the mounting position of compensator of the invention.
Fig. 2 is the example structure schematic diagram of compensator of the invention.
Fig. 3 is another example structure schematic diagram of compensator of the invention.
Fig. 4 is Section A-A structural schematic diagram in Fig. 2.
Specific embodiment
The present invention is that the compensator of discharge is collected for drop after wet desulphurization, as shown in Figure 1, being arranged in chimney entrance
On the flue 1 of section 2.For ease of description, defining flow of flue gas direction is rear, and flue gas source direction is front.
As shown in Fig. 2, it includes the compensator ontologies 3 being set on desulfurization rear pass 1.Also comprising respectively from compensator sheet
Adapter tube 5 and compensator rear tube 4 before the compensator of the forward and backward side of body 3.
There are cricoid logical liquid gaps 12 between adapter tube 5 and compensator rear tube 4 before compensator, in compensator rear tube 4
Front end be arranged extend on the inside of flue 1 annular gear liquid portion 7.The radially projecting height H≤200mm in annular gear liquid portion 7.
As shown in Fig. 2, to guarantee the annular collecting tank of the smooth inflow of drop, annular gear liquid portion 7 can be inclined ring forwards
Shape liquid barrier, the annular liquid barrier and compensator axis direction are in α angle, and 30 °≤α≤90 °.Or as shown in figure 3, annular gear
Liquid portion 7 can keep off liquid angle steel for the ring-type bent forwards.
Annular collecting tank 8 is arranged in the outside in logical liquid gap 12, and logical liquid gap 12 is the entrance of annular collecting tank 8.Between logical liquid
The axial width B of gap 12 is 100~200mm, and the width b of collecting tank 8 is not less than the axial width B in logical liquid gap 12.Annular collection
It is filled between liquid bath 8 and compensator ontology 3 by compensator filler 6, the width b of annular collecting tank 8 must guarantee the wall of collecting tank 8
There are enough uncompensation distances for the wall surface of face and package filler 6.
In order to which liquid smooth can flow out in collecting tank 8, the bottom surface of annular collecting tank 8 is inclined-plane, with compensator axis side
To being in angle β, and depth h >=100mm of 0 °≤β≤45 ° collecting tank 8.
The outlet connected drainage pipe 9 of collecting tank 8.Can as shown in figure 4,8 trailing flank of collecting tank along anchor ring interval aperture, each
Tapping inserts weldering drain pipe 9, and for the liquid in collecting tank 8 to be discharged, multiple drain pipes 9 can be all connected with drain recyclable device
11, or first merge into a general pipeline and drain into drain recyclable device 11 together.To keep liquid communication in drain pipe 9 smooth, drain
9 center line of pipe and horizontal line are in angle γ, and 0 ° of γ≤60 ° <.It should be noted that usually chimney gas approach is compared to level
Line has the inclination of low-angle.
Based on above structure, the drop in desulfurization rear pass 1 is welded on logical along flue inner wall row to compensator ontology 3
The annular liquid barrier or gear liquid angle steel of 12 rear end of liquid gap stop, and flow into annular collecting tank 8 from logical liquid gap 12, collecting tank 8
Interior liquid drains into drain recyclable device 11 by inclined bottom surface and drain pipe.
Can be also equipped in annular collecting tank 8 and drain pipe 9 back-purge system (not shown) can periodically to collecting tank and
Drain pipe is rinsed.The pressure transmitter (not shown) whether blocked for monitoring drain pipe, row are set on drain pipe 9
Fluid-tight 10 is arranged in 9 bottom end of liquid pipe, prevents flue gas from escaping.
The material of adapter tube, annular liquid barrier or annular gear liquid angle steel, annular collecting tank and drain pipe is excellent before and after compensator
Titanium alloy is used, first effectively to avoid droplets from the fast erosion to compensator and drain pipe.
Claims (10)
1. drop collects the compensator of discharge after a kind of wet desulphurization, which is characterized in that comprising being set on desulfurization rear pass
Compensator ontology (3) also takes over (5) and compensator is followed by comprising being respectively arranged on before the compensator of compensator ontology (3) forward and backward side
It manages (4), takes between (5) and compensator rear tube (4) before compensator there are cricoid logical liquid gap (12), be followed by compensator
Annular gear liquid portion (7) to extension on the inside of flue is arranged in the front end of pipe (4), sets annular collecting tank on the outside of logical liquid gap (12)
(8), the outlet connected drainage pipe (9) of the collecting tank (8).
2. drop collects the compensator of discharge after wet desulphurization as described in claim 1, which is characterized in that the annular gear liquid
Portion (7) is inclined annular liquid barrier forwards.
3. drop collects the compensator of discharge after wet desulphurization as described in claim 1, which is characterized in that the annular gear liquid
Portion (7) is the annular gear liquid angle steel bent forwards.
4. drop collects the compensator of discharge after wet desulphurization as claimed in claim 2, which is characterized in that the annular gear liquid
Plate makes an angle alpha with flue axis direction, and 30 °≤α≤90 °.
5. drop collects the compensator of discharge after wet desulphurization as described in claim 1, which is characterized in that the annular liquid collecting
The width (b) of slot (8) is not less than the axial width (B) of logical liquid gap (12), and the axial width (B) for leading to liquid gap (12) is 100 ~
200mm。
6. drop collects the compensator of discharge after wet desulphurization as described in claim 1, which is characterized in that collecting tank (8) bottom
Face is inclined-plane, is in angle β, and 0 °≤β≤45 ° with flue axis direction.
7. drop collects the compensator of discharge after wet desulphurization as described in claim 1, which is characterized in that the drain pipe
(9) center line and horizontal line are in angle γ, and 0 ° of γ≤60 ° <.
8. drop collects the compensator of discharge after wet desulphurization as described in claim 1, which is characterized in that annular collecting tank
(8) compensator filler (6) are filled between compensator ontology (3).
9. drop collects the compensator of discharge after wet desulphurization as described in any of the claims 1 to 8, which is characterized in that drain
Manage the tail end connected drainage recyclable device (11) of (9).
10. drop collects the compensator of discharge after wet desulphurization as claimed in claim 9, which is characterized in that annular collecting tank
(8) and on drain pipe (9) back-purge system is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273380.4A CN110314453A (en) | 2018-03-29 | 2018-03-29 | Drop collects the compensator of discharge after wet desulphurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273380.4A CN110314453A (en) | 2018-03-29 | 2018-03-29 | Drop collects the compensator of discharge after wet desulphurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110314453A true CN110314453A (en) | 2019-10-11 |
Family
ID=68111002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810273380.4A Pending CN110314453A (en) | 2018-03-29 | 2018-03-29 | Drop collects the compensator of discharge after wet desulphurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110314453A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354102A (en) * | 2008-03-20 | 2009-01-28 | 浙江菲达环保科技股份有限公司 | Expansion node |
| CN102913710A (en) * | 2012-10-31 | 2013-02-06 | 上海迪夫格环境科技有限公司 | Chimney expansion joint |
| CN202938329U (en) * | 2012-11-02 | 2013-05-15 | 上海迪夫格环境科技有限公司 | Condensate collection device at entry of wet chimney |
| CN103388829A (en) * | 2013-07-30 | 2013-11-13 | 上海龙越环保科技有限公司 | Eliminator for gypsum rain or stack rain in wet desulphurization system |
| CN203464303U (en) * | 2013-08-16 | 2014-03-05 | 上海迪夫格环境科技有限公司 | Device for collecting condensed fluid on inner wall of wet gas flue |
| CN103953937A (en) * | 2014-05-15 | 2014-07-30 | 上海迪夫格环境科技有限公司 | Guide vane device at entrance of wet chimney |
| CN204593422U (en) * | 2015-04-17 | 2015-08-26 | 张建东 | A kind of flue with liquid collection function |
| CN206723691U (en) * | 2017-05-04 | 2017-12-08 | 武汉博奇玉宇环保股份有限公司 | Expansion joint based on the solvent-free hybrid resin of VF A flame retardant types |
| CN206973597U (en) * | 2017-07-11 | 2018-02-06 | 成都锐思环保技术股份有限公司 | It is a kind of to be used to exclude hydrops and the device for preventing flue collector from corroding in flue |
| CN208130657U (en) * | 2018-03-29 | 2018-11-23 | 中国电力工程顾问集团华北电力设计院有限公司 | Drop collects the compensator of discharge after wet desulphurization |
-
2018
- 2018-03-29 CN CN201810273380.4A patent/CN110314453A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354102A (en) * | 2008-03-20 | 2009-01-28 | 浙江菲达环保科技股份有限公司 | Expansion node |
| CN102913710A (en) * | 2012-10-31 | 2013-02-06 | 上海迪夫格环境科技有限公司 | Chimney expansion joint |
| CN202938329U (en) * | 2012-11-02 | 2013-05-15 | 上海迪夫格环境科技有限公司 | Condensate collection device at entry of wet chimney |
| CN103388829A (en) * | 2013-07-30 | 2013-11-13 | 上海龙越环保科技有限公司 | Eliminator for gypsum rain or stack rain in wet desulphurization system |
| CN203464303U (en) * | 2013-08-16 | 2014-03-05 | 上海迪夫格环境科技有限公司 | Device for collecting condensed fluid on inner wall of wet gas flue |
| CN103953937A (en) * | 2014-05-15 | 2014-07-30 | 上海迪夫格环境科技有限公司 | Guide vane device at entrance of wet chimney |
| CN204593422U (en) * | 2015-04-17 | 2015-08-26 | 张建东 | A kind of flue with liquid collection function |
| CN206723691U (en) * | 2017-05-04 | 2017-12-08 | 武汉博奇玉宇环保股份有限公司 | Expansion joint based on the solvent-free hybrid resin of VF A flame retardant types |
| CN206973597U (en) * | 2017-07-11 | 2018-02-06 | 成都锐思环保技术股份有限公司 | It is a kind of to be used to exclude hydrops and the device for preventing flue collector from corroding in flue |
| CN208130657U (en) * | 2018-03-29 | 2018-11-23 | 中国电力工程顾问集团华北电力设计院有限公司 | Drop collects the compensator of discharge after wet desulphurization |
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