CN206262298U - Dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation - Google Patents
Dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation Download PDFInfo
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- CN206262298U CN206262298U CN201621244679.XU CN201621244679U CN206262298U CN 206262298 U CN206262298 U CN 206262298U CN 201621244679 U CN201621244679 U CN 201621244679U CN 206262298 U CN206262298 U CN 206262298U
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Abstract
Dedusting demisting integrated apparatus, including desulfurizing tower, demister and spray cooling system are amplified in a kind of desulfurizing tower spray condensation, are characterized in that：The fine ridge type demister of tubular demister, first order ridge type demister, the thin ridge type demister in the second level and the third level that the demister sets gradually from down to up is constituted；Spray cooling system includes cool water shower layer, collector tube grid and cooling water tank, cool water shower layer is located between the thin ridge type demister in the second level and first order ridge type demister, collector tube grid are between cool water shower layer and first order ridge type demister, cool water shower layer is connected by feed pipe with cooling water tank, feed pipe is provided with supply-water pump, the top of collector tube grid is opened wide, and collector tube grid are connected with cooling water tank.It can effectively improve desulfurizing tower collaboration dust collection capacity and reduce system flush water the utility model, and the gypsum carrying amount in desulfurizing tower exiting flue gas can be greatly reduced, so as to thoroughly eliminate chimney gypsum rain phenomenon.
Description
Technical field：
The utility model is related to a kind of flue gas ash removal defogging equipment, and in particular to dedusting is amplified in a kind of desulfurizing tower spray condensation
Demisting integrated apparatus.
Background technology：
China's Desulphurization for Coal-fired Power Plant technique generally uses Limestone-gypsum Wet Flue Gas Desulfurization Process technique, is installed on desulfurizing tower top
Demister comes demisting and dedusting.Coal-fired plant flue gas pollutant minimum discharge relates generally to flue dust, SO2And NOxDischarge, its show
The difficult point in stage is how to realize high-effective dust-removing.At present, Treatment process route is cooperateed with to realize flue dust 5mg/Nm using flue gas3's
Minimum discharge increasingly becomes main flow, and the technology path realizes that successfully key is exactly that wet desulfuration tower need to be gathered around for flue dust minimum discharge
There is very strong collaboration dust collection capacity, and to realize this point and generally have to meet desulfurizing tower entrance dust concentration no more than 20mg/
Nm3, demister in existing desulfurizing tower is removed based on inertial collision theory to dust and droplet collection, its cut diameter
About 20 μm, it is more than 99% to the dust and gypsum droplet removal efficiency of more than 20 μm of particle diameter, and to the powder below 20 μm of particle diameter
Dirt and gypsum droplet removal efficiency are relatively low so that a large amount of fine solid particles and gypsum mist are unavoidably carried in desulfurizing tower exiting flue gas
Drop, easily triggers chimney gypsum rain phenomenon.Therefore, develop more efficient dedusting demister and just seem and be highly desirable to,
And it is significant.
The content of the invention：
The utility model is to overcome the deficiencies in the prior art, there is provided dedusting demisting one is amplified in a kind of desulfurizing tower spray condensation
Body makeup is put, and it can effectively improve desulfurizing tower collaboration dust collection capacity and reduce system flush water, and can be greatly reduced
Gypsum carrying amount in desulfurizing tower exiting flue gas, so as to thoroughly eliminate chimney gypsum rain phenomenon, solves conventional demisting well
Device is difficult to below 20 μm of particle diameter of removal, especially the problem of the fine solid particle of PM2.5 and gypsum droplet.
Dedusting demisting integrated apparatus, including desulfurizing tower are amplified in desulfurizing tower of the present utility model spray condensation, demister and
Spray cooling system, the technical scheme for being used to achieve the above object is：What the demister set gradually from down to up
Tubular demister, first order ridge type demister, the thin ridge type demister in the second level and the fine ridge type demister structure of the third level
Into；The spray cooling system includes cool water shower layer, collector tube grid and cooling water tank, and the cool water shower layer is in collection
The top of liquid pipe grid, the collector tube grid are in the top of first order ridge type demister, and the cool water shower layer is by supplying
Water pipe is connected with cooling water tank, and the feed pipe is provided with supply-water pump, and the top of the collector tube grid is opened wide, and collector tube grid pass through
Return pipe is connected with cooling water tank.
Used as further improvement of the utility model, the cool water shower layer is by the shower being connected with feed pipe and spray
Mouth is constituted, and many showers are parallel to each other in desulfurizing tower, and multiple nozzles are evenly equipped with every shower.What is be thusly-formed is cold
But Water spray layer has larger projected area, desulfurizing tower is sprayed everywhere uniformly.
Used as further improvement of the utility model, the one-level ridge type demister is close to tubular demister.So set
Put, by the cooperation of tubular demister and one-level ridge type demister, the 50 μm of left sides of particle diameter carried in flue gas can be removed substantially
Right above dust and gypsum droplet, flue gas after treatment are processed through cool water shower layer again, it is possible to decrease cool water shower layer it is negative
Lotus.
Used as further improvement of the utility model, the tube bank that the collector tube grid are staggered in arrangement by two rows is constituted.
It is arranged such,
One can be to receive the water droplet under spray, and two can be flue gas is smoothly flowed through, and synchronously can have to flue gas
Effect combing, so as to play a part of uniform flue gas flow field.
As further improvement of the utility model, cooling water drainage outlet pipe is provided near bottom outside the cooling water tank, it is cold
But water discharge pipe is provided with cooling water excavationg pump.It is arranged such, so that the cooling water temperature in cooling water tank is maintained at suitable model
In enclosing.The beneficial effects of the utility model are：Saturation wet flue gas first pass through tubular demister in the utility model desulfuration spray tower
With the treatment of first order ridge type demister, 50 μm or so the above dust of particle diameter and gypsum mist carried in flue gas can be removed substantially
Drop, subsequent flue gas flows through cool water shower layer and spray water droplet counter current contacting, and cool water shower layer is entered using high-head nozzle
Row spray, the cooling water mist droplet particle size of formation, can be in the cause formed below of cool water shower layer up to 100~200 μm or so
Saturation wet flue gas are condensed and washed by close spraying zone, and vapor condenses precipitation on dust and gypsum droplet surface, makes
Dust and the increase of gypsum mist droplet particle size and hydrophily enhancing, the dust and gypsum droplet of part surface condensation again can be with sprays
Cooling water droplet is further merged into big drop, by most dust and gypsum droplet Caragana seed pests after cool water shower layer
Big droplet into particle diameter more than 20 μm, finally, flue gas sequentially enters the thin ridge type demister in the second level and the fine room of the third level again
Ridge formula demister carries out being classified efficient demisting and dedusting, can solve very well normal in Limestone-gypsum Wet Flue Gas Desulfurization Process spray column
Advise the problem that mechanical demister is difficult to removal for dust and gypsum droplet that 20 μm or so of particle diameter is particularly below PM2.5.
The utility model can not only effectively improve desulfurizing tower collaboration dust collection capacity and reduce mist eliminator flushing water, additionally it is possible to significantly drop
Gypsum carrying amount in low desulfurizing tower exiting flue gas, so as to thoroughly eliminate chimney gypsum rain phenomenon.The collector tube grid being provided with
Gas-liquid separation is capable of achieving, the water droplet under collection spray is back to cooling water tank and is reused, uniform flue gas flow field.
Brief description of the drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A-A of cool water shower layer in Fig. 1 to sectional view；
Fig. 3 is the B-B direction sectional view of collector tube grid in Fig. 1.
Specific embodiment：
Dedusting demisting integrated apparatus, including desulfurizing tower 1, demister and spray are amplified in reference picture 1, desulfurizing tower spray condensation
Drench cooling system, tubular demister 2, the first order ridge type demister 3, second level that the demister sets gradually from down to up
Thin ridge type demister 5 and the fine ridge type demister 6 of the third level are constituted, and the one-level ridge type demister 3 is removed close to tubular type
Day with fog 2；The spray cooling system includes cool water shower layer 4, collector tube grid 7 and cooling water tank 8, the cool water shower layer
4 tops in collector tube grid 7, the collector tube grid 7 are in the top of first order ridge type demister 3, the cooling water spray
Drenching layer 4 is connected by feed pipe 9 with cooling water tank 8, and the feed pipe 9 is provided with supply-water pump 10, and collector tube grid 7 pass through return pipe
11 reclaim water inlet 16 with the collector tube grid on cooling water tank 8 is connected, and the water that return pipe 11 is collected flows down in self gravitation effect,
To cooling water tank 8, because cooling water tank 8 often supplements fresh water, can thus play a part of to reduce coolant water temperature, separately
Outward, cooling water also can outside draining often, the water temperature in cooling water tank 10 is maintained in suitable scope.Collector tube grid 7
In the underface of cool water shower layer, reference picture 3, the tube bank 71 that the collector tube grid 7 are staggered in arrangement by two rows is constituted, and is managed
The top of beam 71 is opened wide for the access cool water shower cooling water that is sprayed of layer, and current are collected pass back into after collection it is cold
But water tank 8, the unlimited stagered bank 71 of upper and lower two-layer is designed to just receive the water droplet under spray, and flue gas is through upper down tube
Collector tube 7 is flowed through in gap between beam 71, and the Main Function of this collector tube grid 7 is exactly to realize liquid qi leel from while to cooling water
It is circulated and uses.The section of tube bank 71 can be semicircle, half elliptic or taper etc..Wherein cooling water tank 8 is provided with fresh
Cooling water water inlet 17.
Reference picture 2, the cool water shower layer 4 is made up of the shower 41 and nozzle 42 that are connected with feed pipe 9, many sprays
Shower pipe 41 is parallel to each other in desulfurizing tower 1, and multiple nozzles 42 are evenly equipped with every shower 41, and every shower 41 is provided with
The nozzle 42 that two rows are parallel to each other, left and right interlaced arrangement is on shower 41 between two row's nozzles 42.Nozzle 42 is in desulfurizing tower 1
Same level in be uniformly distributed, nozzle spray direction downwards, just contacted with flue gas adverse current, spray angle be 90~
120 °, the drop particle diameter of spray is less than 100~200 μm, and the spray area coverage at the underface 1m of nozzle 42 is generally 150
~300%.
The cooling water tank 8 is outer to be provided with cooling water drainage outlet pipe 14 near bottom, and cooling water drainage outlet pipe 14 is provided with cooling water
Excavationg pump 15.When the cooling water solid content in cooling water tank 8 reaches certain value, start cooling water excavationg pump 15 by cooling water drainage
Used as process water in desulphurization system.
The course of work：
After saturation wet flue gas first pass through tubular demister 2 and the treatment of first order ridge type demister 3, particle diameter can be removed big
In more than 50 μm dust and gypsum droplet.At the same time, supply-water pump 10 sends into the water in cooling water tank 8 by feed pipe 9 cold
But in the shower 41 of Water spray layer 4, the spray water droplet that is sprayed with nozzle 42 of flue gas for flowing through cool water shower layer 4 countercurrently connects
Touch, the dust and gypsum droplet remained in part of smoke are scrubbed to collide directly removing, remaining major part dust and gypsum mist
Drip after condensed condensation coalescence into the droplet more than 20 μm.Last flue gas sequentially enters the thin ridge type demisting in the second level again
Device 5 and the fine ridge type demister 6 of the third level carry out being classified efficient demisting and dedusting.The water droplet of whereabouts is carried out by collector tube grid 7
Collect, then collect collection after be back in cooling water tank 8 by return pipe 11.
The utility model can not only effectively improve desulfurizing tower collaboration dust collection capacity and reduce mist eliminator flushing water, moreover it is possible to
The gypsum carrying amount in desulfurizing tower exiting flue gas is enough greatly reduced, so as to thoroughly eliminate chimney gypsum rain phenomenon.
The cool water shower layer 4 is located between the thin ridge type demister 5 in the second level and first order ridge type demister 3,
The collector tube grid 7 are between cool water shower layer 4 and first order ridge type demister 3, can also be set cool water shower layer 4
Between the thin ridge type demister 5 of the fine ridge type demister 6 of the third level and the second level, collector tube grid 7 are sprayed located at cooling water
Between the thin ridge type demister 5 of drenching layer 4 and the second level.The height of the reserved 3~5m of the domestic demand of spray column 1 installs cool water shower layer
4 and collector tube grid 7.
Claims (7)
1. dedusting demisting integrated apparatus, including desulfurizing tower (1), demister and spraying cooling are amplified in a kind of desulfurizing tower spray condensation
System, it is characterised in that：Tubular demister (2), first order ridge type demister that the demister sets gradually from down to up
(3), the thin ridge type demister (5) in the second level and the fine ridge type demister (6) of the third level are constituted；The spray cooling system bag
Cool water shower layer (4), collector tube grid (7) and cooling water tank (8) are included, cool water shower layer (4) is in collector tube grid (7)
Top, the top of the collector tube grid (7) in first order ridge type demister (3), cool water shower layer (4) passes through
Feed pipe (9) is connected with cooling water tank (8), and the feed pipe (9) is provided with supply-water pump (10), the top of the collector tube grid (7)
Portion is opened wide, and collector tube grid (7) are connected by return pipe (11) with cooling water tank (8).
2. dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation as claimed in claim 1, it is characterised in that：Institute
State shower (41) and nozzle (42) of cool water shower layer (4) by being connected with feed pipe (9) to constitute, many shower (41) phases
It is mutually parallel in desulfurizing tower (1), it is evenly equipped with multiple nozzles (42) on every shower (41).
3. dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation as claimed in claim 1, it is characterised in that：Institute
State one-level ridge type demister (3) close to tubular demister (2).
4. dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation as claimed in claim 1, it is characterised in that：Institute
The tube bank (71) that collector tube grid (7) are staggered in arrangement by two rows is stated to constitute.
5. dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation as claimed in claim 1, it is characterised in that：Institute
State cooling water tank (8) and be provided with cooling water drainage outlet pipe (14) near bottom outward, cooling water drainage outlet pipe (14) is provided with cooling water discharge
Pump (15).
6. dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation as claimed in claim 1, it is characterised in that：Institute
State cool water shower layer (4) between the thin ridge type demister (5) in the second level and first order ridge type demister (3), it is described
Collector tube grid (7) are between cool water shower layer (4) and first order ridge type demister (3).
7. dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation as claimed in claim 1, it is characterised in that：Institute
State cool water shower layer (4) between the thin ridge type demister (5) of the fine ridge type demister (6) of the third level and the second level,
The collector tube grid (7) are between cool water shower layer (4) and the thin ridge type demister (5) in the second level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621244679.XU CN206262298U (en) | 2016-11-21 | 2016-11-21 | Dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621244679.XU CN206262298U (en) | 2016-11-21 | 2016-11-21 | Dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation |
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| Publication Number | Publication Date |
|---|---|
| CN206262298U true CN206262298U (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621244679.XU Active CN206262298U (en) | 2016-11-21 | 2016-11-21 | Dedusting demisting integrated apparatus are amplified in a kind of desulfurizing tower spray condensation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107261806A (en) * | 2017-07-19 | 2017-10-20 | 合肥天翔环境工程有限公司 | A kind of desulfurizing tower |
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2016
- 2016-11-21 CN CN201621244679.XU patent/CN206262298U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107261806A (en) * | 2017-07-19 | 2017-10-20 | 合肥天翔环境工程有限公司 | A kind of desulfurizing tower |
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