CN109126351A - It is a kind of to utilize the ultralow dust-extraction unit of net flue - Google Patents
It is a kind of to utilize the ultralow dust-extraction unit of net flue Download PDFInfo
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- CN109126351A CN109126351A CN201811118279.8A CN201811118279A CN109126351A CN 109126351 A CN109126351 A CN 109126351A CN 201811118279 A CN201811118279 A CN 201811118279A CN 109126351 A CN109126351 A CN 109126351A
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- dust
- flue
- extraction unit
- fixedly connected
- demister
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
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- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The ultralow dust-extraction unit of net flue is utilized the invention discloses a kind of, including absorption tower, ultralow dust-extraction unit is equipped at the absorption tower outlet, the ultralow dust-extraction unit includes net flue, dedusting entrance guiding plate, high-effective dust-removing demister, rinse piece, flow pipe, nozzle and house outlet deflector, the net flue is fixedly connected at the outlet of absorption tower, and dedusting entrance guiding plate is fixedly connected on inside net flue, the high-effective dust-removing demister is located at side of the dedusting entrance guiding plate far from absorption tower, this utilizes the ultralow dust-extraction unit of net flue, by utilizing the net flue of desulfurizing tower, in net flue corner design arrangement high-effective dust-removing defogger system, the axial direction of high-effective dust-removing demister unit is from the horizontal by 30~60 degree, increase the contacting section product of flue gas and high-effective dust-removing demister, reduce gas phase flow velocity, It ensure that the demisting dust removing effects of high-effective dust-removing demister, so that the content of flue dust reaches minimum discharge standard in neat stress.
Description
Technical field
The present invention relates to net flue technical fields, specially a kind of to utilize the ultralow dust-extraction unit of net flue.
Background technique
In recent years, national three ministries and commissions combine and have issued " about printing and distributing " coal electricity energy-saving and emission-reduction upgrading and transformation action plan
(2014-the year two thousand twenty) " notice ", it is desirable that 300,000 kilowatts of eastern region active service or more public Thermal generation units and part have
300,000 kilowatts or less public Thermal generation units of condition, Air Pollutant Emission concentration use gas turbine group emission limit
(i.e. under 6%O2, flue dust, SO2, NOx emission concentration are respectively no higher than 10,35,50mg/Nm3, under the support of environmental protection policy, birth
Many desulphurization denitration dedusting technologies are given birth to.In desulfuration field, mainly there are Limestone-gypsum Wet Flue Gas Desulfurization Process, ammonia process-ammonium sulfate wet process
Sulfur dioxide in flue gas can be cut to 35mg/Nm3 hereinafter, in denitration field by the technologies such as desulfurization, mainly have low nitrogen burning,
SNCR denitration and SCR denitration.
In terms of flue dust removing, mainly there are wet electrical dust precipitator, bundled tube deduster etc., wet electrical dust precipitator cost is high
Expensive, operating cost is higher, and takes up an area wider, seldom for vacant lot transformation project, with being significantly restrained；Bundled tube removes
Dirt device, old tower generally requires when being transformed increases former absorber tower cylinder, when can not increase former absorber tower cylinder for being limited by space,
The utilization of bundled tube deduster is very limited, for this purpose, it is proposed that a kind of utilize the ultralow dust-extraction unit of net flue.
Send out content
The ultralow dust-extraction unit of net flue is utilized the purpose of the present invention is to provide a kind of, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme: it is a kind of using the ultralow dust-extraction unit of net flue, including
Absorption tower is equipped with ultralow dust-extraction unit at the absorption tower outlet, and the ultralow dust-extraction unit includes net flue, dedusting entrance
Deflector, high-effective dust-removing demister, rinse piece, flow pipe, nozzle and house outlet deflector, the net flue are fixedly connected
At the outlet of absorption tower, and dedusting entrance guiding plate is fixedly connected on inside net flue, and the high-effective dust-removing demister is located at
Side of the dedusting entrance guiding plate far from absorption tower, and high-effective dust-removing demister is fixedly connected on inside net flue, it is described efficient
Rinse piece is fixedly connected with inside dedusting demister, the high-effective dust-removing demister output end is equipped with drain tube, and flow pipe
It is fixedly connected on inside high-effective dust-removing demister, the flow pipe output end is in communication with the outside, and the nozzle is located at high-effective dust-removing
Inside demister, and nozzle is fixedly connected on flow pipe, and the house outlet deflector is fixedly connected on high-effective dust-removing and removes
Day with fog exit, and house outlet deflector is located inside net flue.
Preferably, there are two the rinse piece is set, and two rinse pieces are uniformly fixedly connected in high-effective dust-removing demister
Portion.
Preferably, the rinse piece includes swirl vane, blind plate and cylinder, and the swirl vane is equipped with multiple and multiple
Swirl vane is fixedly connected on the outside of blind plate, and the swirl vane is located at and blind plate is respectively positioned on the outside of cylinder, and cylinder is fixed
It is connected to inside high-effective dust-removing demister.
Preferably, tube bank is axial inside the high-effective dust-removing demister and the angle of horizontal flue be~spend.
Preferably, the nozzle is equipped with multiple, and multiple nozzles are fixedly connected on flow pipe, and the nozzle is solid
Wimble structure.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention is by utilizing the net flue of desulfurizing tower, in net flue corner design arrangement high-effective dust-removing demister system
System, the axial direction of high-effective dust-removing demister unit increase flue gas and high-effective dust-removing demister from the horizontal by 30~60 degree
Contacting section product, reduces gas phase flow velocity, ensure that the demisting dust removing effects of high-effective dust-removing demister, so that flue dust in neat stress
Content reach minimum discharge standard, instruct dedusting entrance guiding plate and dedusting to export setting for deflector using CFD numerical simulation
Meter, is adjusted to vertical with high-effective dust-removing demister for high-effective dust-removing demister import flue gas, ensure that high-effective dust-removing demister
Demisting efficiency of dust collection, the flue gas after dedusting demisting after water conservancy diversion redistributes, flow to it is parallel with flue, reduce the turbulent flow of flue gas with
Vortex, reduces the drag losses of flue gas, while avoiding flue gas and directly washing away the abrasion of siding caused by wall panel, using de-
The net flue of sulphur tower removes flue dust in flue gas, so that the content of flue dust reaches minimum discharge standard in neat stress.For lime stone-
In gypsum wet desulfurizing fly ash project, the especially following occasion of the present invention, and there is apparent advantage: (1) plan use bundled tube
High-effective dust-removing demister dedusting, but original absorber tower cylinder is limited by space, when can not increase；(2) in the original plan using wet type electricity
Deduster dedusting, but limited by place, when can not arrange wet electrical dust precipitator.
2, the present invention is bundled tube high-effective dust-removing demister, built-in 2-4 grades of swirl vane, leaf by high-effective dust-removing demister
The size and angle of piece are designed using differentiation, to guarantee under different load that dedusting demister can cigarette in efficient removal flue gas
Dirt.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is swirl vane side view of the present invention.
In figure: the absorption tower 1-；The ultralow dust-extraction unit of 2-；The net flue of 3-；4- dedusting entrance guiding plate；5- high-effective dust-removing demisting
Device；6- rinse piece；7- flow pipe；8- nozzle；9- house outlet deflector；10- swirl vane；11- blind plate；12- cylinder.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: it is a kind of to utilize the ultralow dust-extraction unit of net flue, including inhale
Tower 1 is received, ultralow dust-extraction unit 2 is equipped at 1 outlet of absorption tower, the ultralow dust-extraction unit 2 includes net flue 3, dedusting
Entrance guiding plate 4, high-effective dust-removing demister 5, rinse piece 6, flow pipe 7, nozzle 8 and house outlet deflector 9, the net cigarette
Road 3 is fixedly connected at 1 outlet of absorption tower, and dedusting entrance guiding plate 4 is fixedly connected on inside net flue 3, described efficient
Dedusting demister 5 is located at 4 side far from absorption tower 1 of dedusting entrance guiding plate, and high-effective dust-removing demister 5 is fixedly connected on only
Inside flue 3, rinse piece 6,5 output end of high-effective dust-removing demister are fixedly connected with inside the high-effective dust-removing demister 5
It is equipped with drain tube, and flow pipe 7 is fixedly connected on inside high-effective dust-removing demister 5,7 output end of flow pipe and the external world are even
Logical, the nozzle 8 is located inside high-effective dust-removing demister 5, and nozzle 8 is fixedly connected on flow pipe 7, the house outlet
Deflector 9 is fixedly connected on 5 exit of high-effective dust-removing demister, and house outlet deflector 9 is located inside net flue 3.
There are two the rinse piece 6 is set, and two rinse pieces 6 are uniformly fixedly connected on inside high-effective dust-removing demister 5, from
And improve flue dust removal efficiency in flue gas.
The rinse piece 6 includes swirl vane 10, blind plate 11 and cylinder 12, and the swirl vane 10 is equipped with multiple and more
A swirl vane 10 is fixedly connected in 11 outside of blind plate, and the swirl vane 10 is located at and blind plate 11 is respectively positioned on outside cylinder 12
Side, and cylinder 12 is fixedly connected on inside high-effective dust-removing demister 5, is designed by the size and angle of blade using differentiation,
To guarantee under different load that dedusting demister can flue dust in efficient removal flue gas.
It is 30~60 degree that the axial angle with horizontal flue is restrained inside the high-effective dust-removing demister 5, increases flue gas
With the contacting section product of high-effective dust-removing demister 5, gas phase flow velocity is reduced, ensure that the demisting dedusting of high-effective dust-removing demister 5
Effect.
The nozzle 8 is equipped with multiple, and multiple nozzles 8 are fixedly connected on flow pipe 7, and the nozzle 8 is solid-cone
Structure, to increase spraying efficiency.
Working principle: by utilizing the net flue 3 of desulfurizing tower, in net 3 corner design arrangement high-effective dust-removing demister 5 of flue
System, the axial direction of high-effective dust-removing demister Unit 5 increase flue gas and high-effective dust-removing demister from the horizontal by 30~60 degree
5 contacting section product, reduces gas phase flow velocity, ensure that the demisting dust removing effects of high-effective dust-removing demister 5, so that in neat stress
The content of flue dust reaches minimum discharge standard, instructs dedusting entrance guiding plate 4 and dedusting to export deflector using CFD numerical simulation
5 import flue gas of high-effective dust-removing demister is adjusted to vertical with high-effective dust-removing demister 5, ensure that high-effective dust-removing removes by 9 design
The demisting efficiency of dust collection of day with fog 5, the flue gas after dedusting demisting flow to parallel with flue, reduce flue gas after water conservancy diversion redistributes
Turbulent flow and vortex, reduce the drag losses of flue gas, at the same avoid flue gas directly wash away siding caused by wall panel mill
Damage removes flue dust in flue gas, so that the content of flue dust reaches minimum discharge standard in neat stress using the net flue 3 of desulfurizing tower.It is right
In Limestone-gypsum Wet Flue Gas Desulfurization Process transformation project, the especially following occasion of the present invention, and there is apparent advantage: (1) plan adopt
With 5 dedusting of bundled tube high-effective dust-removing demister, but original absorber tower cylinder is limited by space, when can not increase；(2) it adopts in the original plan
It with wet electrical dust precipitator dedusting, but is limited by place, when can not arrange wet electrical dust precipitator.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of utilize the ultralow dust-extraction unit of net flue, including absorption tower (1), it is characterised in that: absorption tower (1) outlet
Place be equipped with ultralow dust-extraction unit (2), the ultralow dust-extraction unit (2) include net flue (3), dedusting entrance guiding plate (4), efficiently
Dedusting demister (5), rinse piece (6), flow pipe (7), nozzle (8) and house outlet deflector (9), the net flue (3)
It is fixedly connected at absorption tower (1) outlet, and dedusting entrance guiding plate (4) is fixedly connected on net flue (3) inside, the height
Effect dedusting demister (5) is located at side of the dedusting entrance guiding plate (4) far from absorption tower (1), and high-effective dust-removing demister (5) is solid
Surely it is internal to be connected to net flue (3), is fixedly connected with rinse piece (6) inside the high-effective dust-removing demister (5), it is described efficiently to remove
Dirt demister (5) output end is equipped with drain tube, and flow pipe (7) is fixedly connected on high-effective dust-removing demister (5) inside, described
Flow pipe (7) output end is in communication with the outside, and it is internal that the nozzle (8) is located at high-effective dust-removing demister (5), and nozzle (8) is fixed
It being connected on flow pipe (7), the house outlet deflector (9) is fixedly connected on high-effective dust-removing demister (5) exit, and
It is internal that house outlet deflector (9) is located at net flue (3).
2. a kind of utilization ultralow dust-extraction unit of net flue according to claim 1, it is characterised in that: the rinse piece (6)
If there are two, and two rinse pieces (6) are uniformly fixedly connected on high-effective dust-removing demister (5) inside.
3. a kind of utilization ultralow dust-extraction unit of net flue according to claim 1, it is characterised in that: the rinse piece (6)
Including swirl vane (10), blind plate (11) and cylinder (12), the swirl vane (10) is equipped with multiple, and multiple swirl vanes
(10) it is fixedly connected on the outside of blind plate (11), the swirl vane (10) is located at and blind plate (11) are respectively positioned on cylinder (12) outside
Side, and cylinder (12) is fixedly connected on high-effective dust-removing demister (5) inside.
4. a kind of utilization ultralow dust-extraction unit of net flue according to claim 1, it is characterised in that: the high-effective dust-removing removes
The axial angle with horizontal flue of tube bank is 30~60 degree inside day with fog (5).
5. a kind of utilization ultralow dust-extraction unit of net flue according to claim 1, it is characterised in that: the nozzle (8) sets
Have multiple, and multiple nozzles (8) are fixedly connected on flow pipe (7), and the nozzle (8) is solid wimble structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118279.8A CN109126351A (en) | 2018-09-26 | 2018-09-26 | It is a kind of to utilize the ultralow dust-extraction unit of net flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118279.8A CN109126351A (en) | 2018-09-26 | 2018-09-26 | It is a kind of to utilize the ultralow dust-extraction unit of net flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109126351A true CN109126351A (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811118279.8A Pending CN109126351A (en) | 2018-09-26 | 2018-09-26 | It is a kind of to utilize the ultralow dust-extraction unit of net flue |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153485A (en) * | 1994-06-09 | 1997-07-02 | Abb环境系统公司 | Improved entrainment separator for high velocity gases and reheating of scrubber gases |
| US20130195728A1 (en) * | 2010-05-14 | 2013-08-01 | Houjie Sun | Wet flue gas desulfurization absorption tower for for power plant |
| CN105854561A (en) * | 2016-05-10 | 2016-08-17 | 浙江天蓝环保技术股份有限公司 | Device and process for coordinative treatment of smoke desulfuration and dedusting |
| CN209173635U (en) * | 2018-09-26 | 2019-07-30 | 杭州玺清环保科技有限公司 | It is a kind of to utilize the ultralow dust-extraction unit of net flue |
-
2018
- 2018-09-26 CN CN201811118279.8A patent/CN109126351A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153485A (en) * | 1994-06-09 | 1997-07-02 | Abb环境系统公司 | Improved entrainment separator for high velocity gases and reheating of scrubber gases |
| US20130195728A1 (en) * | 2010-05-14 | 2013-08-01 | Houjie Sun | Wet flue gas desulfurization absorption tower for for power plant |
| CN105854561A (en) * | 2016-05-10 | 2016-08-17 | 浙江天蓝环保技术股份有限公司 | Device and process for coordinative treatment of smoke desulfuration and dedusting |
| CN209173635U (en) * | 2018-09-26 | 2019-07-30 | 杭州玺清环保科技有限公司 | It is a kind of to utilize the ultralow dust-extraction unit of net flue |
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