CN207153466U - A kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank - Google Patents
A kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank Download PDFInfo
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- CN207153466U CN207153466U CN201720688890.9U CN201720688890U CN207153466U CN 207153466 U CN207153466 U CN 207153466U CN 201720688890 U CN201720688890 U CN 201720688890U CN 207153466 U CN207153466 U CN 207153466U
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Abstract
The utility model provides a kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank, and applied to a desulfuration absorbing tower, the desulfuration absorbing tower is Two-way Cycle or multi-cycle absorption tower, including a tower body, a first circulation loop and a second circulation loop；Device includes：Several V-arrangement isolation parts being arranged in inside tower body, including multiple waveform plates arranged in parallel；The slurry collecting groove being arranged in below each V-arrangement isolation part；It is arranged in the slurries outside tower body and collects pipeline.By using the waveform plate of series of parallel arrangement, secondary cycle slurries can not only be collected, moreover it is possible to the primary cycle slurry droplet carried in flue gas is removed, so as to avoid the quick reduction of two level sprayed slurry solid content and pH value, while desulfuration efficiency is improved, operating cost is reduced.
Description
Technical field
It the utility model is related to environmental technology field, more particularly to wet process of FGD equipment, and in particular to a kind of band is received
Collect the fold-line-shaped gas-liquid part flow arrangement of groove.
Background technology
《The energy-saving and emission-reduction of coal electricity upgrade and transformation action plan (2014-2020)》It is required that eastern region (Liaoning, Beijing, day
The provinces and cities of Tianjin, Hebei, Shandong, Shanghai, Jiangsu, Zhejiang, Fujian, Guangdong, Hainan etc. 11) newly-built Thermal generation unit atmosphere pollution
Concentration of emission basically reach gas turbine group emission limit (i.e. under the conditions of benchmark oxygen content 6%, flue dust, sulfur dioxide, nitrogen oxygen
Compound concentration of emission is respectively no higher than 10,35,50 milligrams/cubic metre), middle part (Heilungkiang, Jilin, Shanxi, Anhui, lake
The province of north, Hunan, Henan, Jiangxi etc. 8) new-built unit is in principle close to or up gas turbine group emission limit, and encouragement is westernly
Area's new-built unit is close to or up gas turbine group emission limit.To the year two thousand twenty, 300,000 kilowatts of eastern region active service and the above are public
Thermal generation unit and other conditional Thermal generation units are provided for oneself with Thermal generation unit, 100,000 kilowatts and the above, are changed
Make rear Air Pollutant Emission concentration and basically reach gas turbine group emission limit.
For subregion fire coal sulfur-bearing it is too high the problem of, traditional single cycle desulfurization technology is extremely difficult to State Ministry of Environmental Protection
New standard requirement.
It is universal at present in order to reach emission request, it is necessary to be transformed or updated for traditional single cycle desulphurization system
Using single column double circulation desulphurization system, and in order to realize single column Two-way Cycle, then need to be separated different circulation loops.
Prior art, the Chinese utility model patent of Application No. 201420698052.6 disclose a kind of single column Two-way Cycle
Wet flue gas desulfurization tower cascade type liquid collector, it is included in the liquid collecting bucket set between the loop of Sprayer Circulation up and down of desulfurizing tower,
Cascade structure is provided with above liquid collecting bucket, cascade structure is divided into one-level leaf grating and two level leaf grating, and one-level leaf grating and two level leaf grating are handed over
Mistake arrangement is formed and is connected when overlooking for the cascade structure of annular, the root of cascade structure with liquid collecting bucket, and liquid collecting bucket bottom passes through slurry
Liquid return duct communicates with the slurry tank outside desulfurizing tower.The effect of uniform gas-liquid flow field can be played to a certain extent, still, on
State that the device separating effect being previously mentioned in patent is unsatisfactory, a large amount of slurry droplets are still carried in the flue gas by one-level spray
Sprayed into two level, and be collected into the outer stock tank of tower, caused two level sprayed slurry solid content and pH value to reduce quickly, reduce by two
Level circulation desulfurization efficiency, and increase absorbent consumption.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank,
By using the waveform plate of series of parallel arrangement, secondary cycle slurries can be not only collected, moreover it is possible to remove in flue gas and carry
Primary cycle slurry droplet, so as to avoid the quick reduction of two level sprayed slurry solid content and pH value, improve desulfuration efficiency
While, reduce operating cost.
For the above-mentioned purpose, the concrete technical scheme that the utility model is taken is：
A kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank, applied to a desulfuration absorbing tower, the desulfuration absorbing tower is double
Circulation or multi-cycle absorption tower, including a tower body, a first circulation loop and a second circulation loop；Device includes：
Several V-arrangement isolation parts being arranged in inside tower body, including multiple waveform plates arranged in parallel；
The slurry collecting groove being arranged in below each V-arrangement isolation part；
It is arranged in the slurries outside tower body and collects pipeline.
Further, the V-arrangement angular range that each V-arrangement isolation part is formed is 45 ° to 75 °, preferably 60 °.
Further, each waveform plate is respectively provided with a crest portion, wave crest portions possessed by adjacent waveform plate
In the overlapping half no more than crest overall width of projection of vertical direction.
Further, the overall projection in vertical direction of adjacent waveform plate is overlapping is not less than waveform plate overall width
1/10th.
Further, the cross-sectional width of the waveform plate is 180mm to 300mm, between adjacent wave shape plate between
Away from 0.7 to 1.5 times for foregoing cross-sectional width.
Further, the whole height of the V-arrangement isolation part is 0.05-0.25 times of tower body diameter.
Further, the slurry collecting groove is the cylindrical elongated slot of first half opening；Between adjacent slurry collecting groove
Spacing be 0.9-1.2 times of whole height of V-arrangement isolation part.
Further, the slurry collecting groove and water direction are in 10 ° to 20 ° angles.
Further, the slurries collect pipeline include be respectively communicated with the slurry collecting groove some connecting lines and with
What each connecting line connected collects pipeline.
Further, the waveform plate is fixed by the support beam being arranged in tower body.
By taking above-mentioned technical proposal, fold-line-shaped is arranged as by a series of waveform plate, between waveform plate between
Gap forms the gas-liquid separation passage of bending, and lower end sets slurry collecting groove.The device is arranged on the superior and the subordinate's spray in absorption tower
In support beam between uptake zone, it is covered with whole absorption tower cross section, the flue gas of a large amount of slurry droplets is contained after one-level sprays
Device is flowed through, during by gas-liquid separation passage, droplet collision entrained by flue gas is on waveform plate and slides and returns to tower entoplasm
Pond, flue gas are then upwardly into two level spraying zone.And two level sprayed slurry is drained into collecting tank through waveform plate and flows out tower
Outside, by collecting the slurry pool to outside tower that backflows.
By practical proof, device provided by the utility model has the advantages of simple in construction, drag losses is small, Neng Gouyou
Effect separation one-level, secondary cycle slurries, while can uniformly enter the flue gas flow field of two level spraying zone, improve secondary cycle desulfurization
Efficiency.
Brief description of the drawings
Fig. 1 is the arrangement schematic diagram of the fold-line-shaped gas-liquid part flow arrangement with collecting tank in the utility model.
Fig. 2 be in Fig. 1 A-A to diagrammatic cross-section.
Fig. 3 is the close-up schematic view of the fold-line-shaped gas-liquid part flow arrangement with collecting tank in the utility model, is shown in figure
Show the waveform plate of some arrangements.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clear, complete description.
As shown in figure 1, in one embodiment, there is provided a kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank, applied to one
Desulfuration absorbing tower, the desulfuration absorbing tower are Two-way Cycle or multi-cycle absorption tower, including tower body 1, first circulation loop and one second
Circulation loop；In figure, lower floor's spray-absorption layer 2 in first circulation loop is illustrated and second circulation loop sprays suction at the middle and upper levels
Layer 7 is received, between device arrangement and lower floor's spray-absorption layer 2 and upper strata spray-absorption layer 7.The utility model only accompanying drawing herein
The structure that illustrates do exemplary illustration, it is not excluded that in the desulfuration absorbing tower having install more than two circulation loop, for use
The desulfuration absorbing tower in multi-cycle loop, device provided by the utility model still are able to play a role as gas-liquid flow dividing structure,
That is such application mode and structure are still within the scope of protection of the utility model.
With reference to figure 1 and Fig. 2, device specifically includes：Several V-arrangement isolation parts 3 being arranged in inside tower body 1, including it is parallel
Multiple waveform plates 31 of arrangement；Waveform plate 31 is fixed by the support beam being arranged in tower body.It is arranged in each V-arrangement isolation
The slurry collecting groove 4 of the lower section of portion 3；It is arranged in the slurries outside tower body 1 and collects pipeline.Slurries collect pipeline and include being respectively communicated with slurry
Some connecting lines 5 of liquid collecting tank 4 and collect pipeline 6 with what each connecting line 5 connected, this collects pipeline 6 and is connected to
The slurry pool (not shown) of two circulation loops, to realize the circulating reflux of slurries.
Specifically, the scope for the V-arrangement angle β that each V-arrangement isolation part is formed is 45 ° to 75 °, preferably 60 °.
With reference to figure 3, each waveform plate 31 is respectively provided with a crest portion, and the selection of crest portion or determination principle are：With waveform
Centered on the peak of plate, extend identical distance to both sides, intercept a part for waveform plate, this part is an almost symmetry
It is raised.
Wave crest portions possessed by adjacent waveform plate overlapping are no more than crest overall width in the projection of vertical direction
Half, it is or even completely not overlapping.And the overall projection in vertical direction of adjacent waveform plate is overlapping is not less than wave
/ 10th of shape plate overall width.So adjacent wave shape plate shape into bending channel substantially can be taken flue gas
The droplet collision of band returns to absorption tower slurry pool in the lower wall of the waveform plate on the bending channel top and landing, and flue gas then leads to
Cross the spray-absorption region that the bending channel enters secondary cycle loop.Meanwhile the sprayed slurry of two level spray-absorption layer then falls
In the upper wall surface of the waveform plate of top arrangement, along above avoiding flowing down, then fall the upper wall in waveform plate on the lower, according to
Secondary trickling downwards, finally collects in the bottom of V-arrangement isolation part, falls into the slurry collecting groove of lower section.
The cross-sectional width B of waveform plate is 180mm to 300mm, and the spacing h between adjacent wave shape plate is foregoing section
0.7 to 1.5 times of width.The material of waveform plate is selected from stainless steel, line with rubber plate or glass epoxy, or other have higher-strength
Corrosion-resistant, high-abrasive material.
V-arrangement isolation part H whole height is 0.05-0.25 times of tower body diameter, according to existing conventional desulfurization absorption tower
Specification, about 2m are to 4m.
In the present embodiment, slurry collecting groove is the cylindrical elongated slot of first half opening；Between adjacent slurry collecting groove
Spacing L be 0.9-1.2 times of whole height H of V-arrangement isolation part.In a further embodiment, other shapes can also be selected
Slurry collecting groove, such as class cylinder of upper opening etc., general from the cylindricality with rounding off face, this shape is more
Be advantageous to flue gas even distribution.But the published embodiment of the utility model and technical concept are used for reference, by the shape of the slurry collecting groove
Be modified, be such as changed to cone tank or polygon cell body, to collect slurries, equally the scope of protection of the utility model it
It is interior.
In addition, slurry collecting groove and water direction are in 10 ° to 20 ° angles.To ensure that slurries smoothly flow into stock tank outside tower.
Verify that the utility model provides the using effect of device below by case history.
By taking a practical sulphur removal system as an example, the application for a patent for invention that application reference people submitted on May 19th, 2016 (is applied
Number：2016103352317) structure on the double circulation desulphurization absorption tower introduced, the absorption using sodium carbonate as primary cycle loop
The absorbent that agent, sodium hydroxide and/or lime stone slurry circulate as secondary circuit, raw flue gas dioxy before absorption tower is entered
Change sulfur content is 6000mg/Nm3, respectively after one-level, secondary cycle desulfurization, according to the difference of arrangement parameter, in flue gas
Content of sulfur dioxide reduces as shown in the following chart, meets discharge standard.Further, since the drop in primary cycle loop is isolated effect
The liquid that the treated flue gas of highly significant, substantially primary cycle loop carries will not enter secondary cycle loop, thus not
The constantly regenerating of sodium base absorbant can be influenceed, calcium-base absorbing agent can be used for making gypsum after desulfurization, can be greatly lowered
Fume treatment cost.
The sulfur dioxide in flue gas content balance table of table 1
Comparative example 1：
Above-mentioned desulphurization system is equally used, the liquid collector for replacing with patent disclosed in background technology realizes gas-liquid separation,
Content of sulfur dioxide is 6000mg/Nm3Flue gas, still carry a large amount of slurry droplets into two in the flue gas by one-level spray
Level spray, and the outer stock tank of tower is collected into, cause two level sprayed slurry solid content and pH value to reduce quickly, reduce secondary cycle
Desulfuration efficiency, and increase absorbent consumption.After being handled by this comparative example, same processing cost, that is, same agent is added
The medicament of amount, the content of sulfur dioxide in flue gas are only reduced to 55mg/Nm3, qualified discharge can not be realized.
To sum up, the utility model proposes fold-line-shaped gas-liquid part flow arrangement can effectively reduce the cigarette into two level spraying zone
Gas carrying liquid, avoids the blending of two stage cycle slurries, and has the characteristics that to arrange simple, uniform gas-liquid distribution, mounting means simplicity.
Obviously, described embodiment is only the utility model part of the embodiment, rather than whole embodiments.It is based on
Embodiment in the utility model, those of ordinary skill in the art are obtained all under the premise of creative work is not made
Other embodiment, belong to the scope of the utility model protection.
Claims (10)
1. a kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank, applied to a desulfuration absorbing tower, the desulfuration absorbing tower follows to be double
Ring or multi-cycle absorption tower, including a tower body, a first circulation loop and a second circulation loop；It is characterised in that it includes：
Several V-arrangement isolation parts being arranged in inside tower body, including multiple waveform plates arranged in parallel；
The slurry collecting groove being arranged in below each V-arrangement isolation part；
It is arranged in the slurries outside tower body and collects pipeline.
2. the fold-line-shaped gas-liquid part flow arrangement with collecting tank as claimed in claim 1, it is characterised in that each V-arrangement isolation part shape
Into V-arrangement angular range be 45 ° to 75 °.
3. the fold-line-shaped gas-liquid part flow arrangement with collecting tank as claimed in claim 1, it is characterised in that each waveform plate
A crest portion is respectively provided with, wave crest portions possessed by adjacent waveform plate are overlapping whole no more than crest in the projection of vertical direction
The half of body width.
4. the fold-line-shaped gas-liquid part flow arrangement with collecting tank as described in claim 1 or 3, it is characterised in that adjacent wave
The overall projection in vertical direction of shape plate it is overlapping not less than waveform plate overall width 1/10th.
5. the fold-line-shaped gas-liquid part flow arrangement with collecting tank as claimed in claim 1, it is characterised in that the waveform plate
Cross-sectional width is 180mm to 300mm, and the spacing between adjacent wave shape plate is 0.7 to 1.5 times of foregoing cross-sectional width.
6. the fold-line-shaped gas-liquid part flow arrangement with collecting tank as claimed in claim 1, it is characterised in that the V-arrangement isolation part
Whole height be 0.05-0.25 times of tower body diameter.
7. the fold-line-shaped gas-liquid part flow arrangement with collecting tank as claimed in claim 6, it is characterised in that the slurry collecting groove
For the cylindrical elongated slot of first half opening；Spacing between adjacent slurry collecting groove is the whole height of V-arrangement isolation part
0.9-1.2 times.
8. the fold-line-shaped gas-liquid part flow arrangement with collecting tank as claimed in claim 1, it is characterised in that the slurry collecting groove
It is in 10 ° to 20 ° angles with water direction.
9. the fold-line-shaped gas-liquid part flow arrangement with collecting tank as claimed in claim 1, it is characterised in that the slurries manifold trunk
Road includes being respectively communicated with some connecting lines of the slurry collecting groove and collects pipeline with what each connecting line connected.
10. the fold-line-shaped gas-liquid part flow arrangement with collecting tank as claimed in claim 1, it is characterised in that the waveform plate
Fixed by the support beam being arranged in tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720688890.9U CN207153466U (en) | 2017-06-14 | 2017-06-14 | A kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720688890.9U CN207153466U (en) | 2017-06-14 | 2017-06-14 | A kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335332A (en) * | 2017-06-14 | 2017-11-10 | 大唐环境产业集团股份有限公司 | A kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank |
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2017
- 2017-06-14 CN CN201720688890.9U patent/CN207153466U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335332A (en) * | 2017-06-14 | 2017-11-10 | 大唐环境产业集团股份有限公司 | A kind of fold-line-shaped gas-liquid part flow arrangement with collecting tank |
| CN107335332B (en) * | 2017-06-14 | 2023-08-04 | 大唐环境产业集团股份有限公司 | Fold-line-shaped gas-liquid flow dividing device with collecting tank |
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