CN205435387U - A pipe bars flow straightener for flue gas processing system - Google Patents
A pipe bars flow straightener for flue gas processing system Download PDFInfo
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- CN205435387U CN205435387U CN201521107861.6U CN201521107861U CN205435387U CN 205435387 U CN205435387 U CN 205435387U CN 201521107861 U CN201521107861 U CN 201521107861U CN 205435387 U CN205435387 U CN 205435387U
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- pipe grid
- fluid layer
- bank tube
- equal fluid
- processing system
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Abstract
The utility model discloses a pipe bars flow straightener for flue gas processing system, this tub of bars flow straightener include at least double -layer pipe bars flow equalize the layer (100, 200 ), every layer of pipe bars layer (100 of flow equalizing, 200 )In all include the bank tube (310 that many intervals set up, 320, 330 ), adjacent bank tube (310, 320, 330 )Between be formed with flue gas flow equalize passageway (400), the flue gas flow equalizes passageway (400) including entry tapered section (410) and export flaring section (420), the flue gas flow through tub bars flow equalize the layer (100, 200 )The time can form the venturi effect. The utility model discloses a pipe bars flow straightener can effectively promote the interior flow field homogeneity of flue gas processing system, improve the system flow field distribution, improve system efficiency.
Description
Technical field
This utility model relates to environment-protecting industrial field of fume treatment equipment, particularly relates to a kind of flue gas flow equalizing device in flue.
Background technology
In current smoke processing system, flow field is the key factor affecting system effectiveness.Such as, for wet desulphurization, absorption tower is the nucleus equipment of desulfurizer, and boiler smoke enters tower from spray bottom, district and flow forward collides with tower wall, and then flows up, with the serosity adverse current gas-to-liquid contact of spray downwards.In sweetening process, owing to the sprayed slurry density at tower wall is low, and having a large amount of flue gas to pass through at wall, it is uneven that the air flow method of this inequality result in gas-liquid mixed, directly reduces desulfuration efficiency.
Additionally, in denitrating system, economizer is to Benitration reactor process flue, owing to flow field uniformity is poor, causing ammonia can not be sufficiently mixed with flue gas, eventually enter into the ammonia concentration skewness of reactor, denitration efficiency is poor.
Utility model content
The purpose of this utility model be to provide a kind of can effectively promote in smoke processing system flow field uniformity, improve system Flow Field Distribution, improve the pipe grid current equalizer for smoke processing system of system effectiveness.
For achieving the above object, a kind of concrete technical scheme for the pipe grid current equalizer of smoke processing system of the present utility model is:
A kind of pipe grid current equalizer for smoke processing system, including at least equal fluid layer of two-layer pipe grid, every layer of equal fluid layer of pipe grid all includes many spaced bank tubes, flue gas flow equalizing passage it is formed with between adjacent bank tube, flue gas flow equalizing passage includes entrance converging transition and outlet divergent segment, and flue gas can form Venturi effect when flowing through the equal fluid layer of pipe grid.
Advantage for the pipe grid current equalizer of smoke processing system of the present utility model is:
All flow tube grid are made up of oval, rhumbatron or hexagonal tube, define between tube and tube entrance tapered and outlet two flue gas stream sections of flaring, formed venturi type effect, when flue gas flows through this current equalizer, flue gas turbulent flow performance boost, thus it is effectively improved the smoke distribution of flow field regions.
Being applied in desulphurization system absorption tower, will significantly reduce limit wall flue gas escape phenomenon, promote that flue gas is sufficiently mixed with serosity, carry out mass-transfer progress effectively, desulfuration efficiency gets a promotion；Being applied in denitrating system, ammonia mixes more uniform with flue gas, the beneficially lifting of denitration efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of pipe grid current equalizer of the present utility model；
Fig. 2 is the concrete structure schematic diagram of the pipe grid in Fig. 1；
Fig. 3 is the concrete structure schematic diagram of the pipe grid in another embodiment of pipe grid current equalizer of the present utility model；
Fig. 4 is the concrete structure schematic diagram of the pipe grid in the another embodiment of pipe grid current equalizer of the present utility model.
Detailed description of the invention
In order to be better understood by the purpose of this utility model, structure and function, below in conjunction with the accompanying drawings, a kind of pipe grid current equalizer for smoke processing system of the present utility model is done further detailed description.
As shown in Figures 1 to 4, the pipe grid current equalizer for smoke processing system of the present utility model includes at least equal fluid layer of two-layer pipe grid 100,200.Wherein, every layer of equal fluid layer of pipe grid 100,200 all includes many spaced bank tubes 310,320,330, it is formed with flue gas flow equalizing passage 400 between adjacent bank tube 310,320,330, flue gas flow equalizing passage 400 includes entrance converging transition 410 and outlet divergent segment 420, and flue gas can form Venturi effect when flowing through the equal fluid layer of pipe grid 100,200.
Further, the equal fluid layer of adjacent tubes grid is (as shown in Figure 1, including the first equal fluid layer of pipe grid 100 and the second equal fluid layer of pipe grid 200) between the spacing spacing that is preferably between 800～1500mm, and the equal fluid layer of adjacent tubes grid 100,200 identical set or differentiation can be used to arrange.Additionally, the pipe that the bank tube in the equal fluid layer of pipe grid 100,200 can be selected for polygonal tube (such as rhombus bank tube, hexagonal tube grid), oval bank tube and various shape is applied in combination.
Thus, of the present utility model in the pipe grid current equalizer of smoke processing system equal flow tube grid be made up of oval, rhumbatron or hexagonal tube, define between tube and tube entrance tapered and outlet two flue gas stream sections of flaring, form venturi type effect, when flue gas flows through this current equalizer, flue gas turbulent flow performance boost, thus it is effectively improved the smoke distribution of flow field regions.
As shown in Figure 1 to Figure 2, it is an embodiment of pipe grid current equalizer of the present utility model.In this embodiment, the bank tube in the equal fluid layer of pipe grid 100,200 is shaped as rhombus.
Further, horizontal length (the rhombus horizontal diagonal line length of side) a of rhombus bank tube 310 is preferably 180～240mm, spacing (rhombus center distance) c that vertically length (the rhombus vertical diagonal length of side) b is preferably between the neighboring diamonds bank tube 310 in 120～180mm, and the equal fluid layer of pipe grid 100,200 can use identical set or differentiation to arrange.
Further, when spacing c between the neighboring diamonds bank tube 310 in the equal fluid layer of pipe grid 100,200 uses identical set, spacing c between neighboring diamonds bank tube 310 is preferably 2～2.5 times of the horizontal length a of rhombus bank tube 310, can be 280～400mm.
Further, when pipe grid current equalizer is arranged at flue side entrance 500, rhombus bank tube 310 in the equal fluid layer of pipe grid 100,200 axially the most vertical with the flue gas flow direction at flue side entrance 500, and the spacing employing differentiation layout between the neighboring diamonds bank tube 310 in the first equal fluid layer of pipe grid 100 of flue side entrance 500.
Specifically, spacing between the neighboring diamonds bank tube 310 of the close flue side entrance 500 in the first equal fluid layer of pipe grid 100 is more than away from the spacing between the neighboring diamonds bank tube 310 of flue side entrance 500, and the ratio occupied in the first equal fluid layer of pipe grid 100 of the bigger rhombus bank tube 310 of spacing is preferably 1/8-1/2.Wherein, it is further preferred that the spacing between the neighboring diamonds bank tube 310 of close flue side entrance 500 in the first equal fluid layer of pipe grid 100 is more than the spacing between the adjacent bank tube in remaining equal fluid layer of pipe grid (such as the second equal fluid layer of pipe grid 200).
As it is shown on figure 3, another embodiment that it is pipe grid current equalizer of the present utility model.In this embodiment, the bank tube in the equal fluid layer of pipe grid 100,200 is shaped as hexagon.
Further, horizontal length (the hexagon horizontal diagonal line length of side) a of hexagon bank tube 320 is 260～320mm, and vertical length (the hexagon vertical diagonal length of side) b is 120～160mm.In addition, in this embodiment, the arrangement form of the hexagon bank tube 320 in the equal fluid layer of pipe grid 100,200 can be same as the previously described embodiments or similar, when using identical set such as spacing (hexagonal centre spacing) c between the adjacent hexagons bank tube 320 in the equal fluid layer of pipe grid 100,200, spacing c between adjacent hexagons bank tube 320 is preferably 2～2.5 times of the horizontal length a of hexagon bank tube 320, can be 500～600mm.
As shown in Figure 4, it is the another embodiment of pipe grid current equalizer of the present utility model.In this embodiment, the bank tube in the equal fluid layer of pipe grid 100,200 is shaped as ellipse.
Further, horizontal length (ellipse short shaft diameter) a of oval bank tube 330 is 50～80mm, and vertical length (transverse diameter) b is 100～150mm.In addition, in this embodiment, the arrangement form of the oval bank tube 330 in the equal fluid layer of pipe grid 100,200 can be same as the previously described embodiments or similar, when using identical set such as spacing (elliptical center spacing) c between the adjacent ellipses shape bank tube 330 in the equal fluid layer of pipe grid 100,200, spacing c between adjacent ellipses shape bank tube 330 is preferably 2～2.5 times of the horizontal length a of oval bank tube 330.
Further, when the pipe grid current equalizer of this embodiment is arranged in desulfuration absorbing tower, the equal fluid layer of pipe grid (the second equal fluid layer of pipe grid 200) arranged near spraying layer is 1500～2000mm with the distance of the immediate spraying layer in desulfuration absorbing tower.
Pipe grid current equalizer of the present utility model is applied in desulphurization system absorption tower, will significantly reduce limit wall flue gas escape phenomenon, promotes that flue gas is sufficiently mixed with serosity, carries out mass-transfer progress effectively, and desulfuration efficiency gets a promotion；Being applied in denitrating system, ammonia mixes more uniform with flue gas, the beneficially lifting of denitration efficiency.
Specific embodiment:
Pipe grid current equalizer includes the two-layer equal fluid layer of pipe grid, near the lateral smoke inlet flue being applied in absorption tower.Wherein, the distance between the two equal fluid layers of pipe grid is 1200mm, and the upper strata equal fluid layer of pipe grid is 1500mm with the spacing of orlop spraying layer.
The horizontal diagonal line length of side of the rhombus bank tube in the equal fluid layer of pipe grid is 200mm, and vertical diagonal is 160mm.Simultaneously, rhombus bank tube in the upper strata equal fluid layer of pipe grid and the equal fluid layer of lower floor's pipe grid uses differentiation arrangement, the center distance of the rhombus bank tube in the equal fluid layer of pipe grid of upper strata is 350mm, rhombus bank tube in the equal fluid layer of lower floor's pipe grid center distance in away from 5/6 length range in flue entrance region is 300mm, is 500mm in center distance in 1/6 length range of entrance area.
Using practical sulphur removal adsorption tower smoke parameter as benchmark initial conditions, show according to the above-mentioned parameter simulation analysis result that arranges, after adding pipe grid current equalizer, in absorption tower, the flue gas flow field uniformity obtains the lifting of 5 percentage points, effectively improve air flow method, flow field is more uniform, and flue gas and sprayed slurry are more fully mixed, and adsorption tower smoke desulfuration efficiency is obviously improved.
By specific embodiment, this utility model is further described above; although it is understood that; the most concrete description; should not be construed as the restriction to spirit and scope of the present utility model; the various amendments that above-described embodiment is made by one of ordinary skilled in the art after reading this specification, broadly fall into the scope that this utility model is protected.
Claims (10)
1. the pipe grid current equalizer for smoke processing system, it is characterized in that, including at least equal fluid layer of two-layer pipe grid (100,200), every layer of equal fluid layer of pipe grid (100,200) many spaced bank tubes (310 are all included in, 320,330), adjacent bank tube (310,320,330) flue gas flow equalizing passage (400) it is formed with between, flue gas flow equalizing passage (400) includes entrance converging transition (410) and outlet divergent segment (420), and flue gas can form Venturi effect when flowing through pipe grid equal fluid layer (100,200).
Pipe grid current equalizer for smoke processing system the most according to claim 1, it is characterized in that, the equal fluid layer of adjacent tubes grid (100,200) spacing between is 800～1500mm, and the spacing between the equal fluid layer of adjacent tubes grid (100,200) uses identical set or differentiation to arrange.
Pipe grid current equalizer for smoke processing system the most according to claim 1, it is characterised in that the bank tube (310,320,330) in the equal fluid layer of pipe grid (100,200) be shaped as polygon or ellipse.
Pipe grid current equalizer for smoke processing system the most according to claim 3, it is characterized in that, the equal fluid layer of pipe grid (100,200) bank tube in is shaped as rhombus, the horizontal length (a) of rhombus bank tube (310) is 180～240mm, and vertical length (b) is 120～180mm.
Pipe grid current equalizer for smoke processing system the most according to claim 3, it is characterized in that, the equal fluid layer of pipe grid (100,200) bank tube in is shaped as hexagon, the horizontal length (a) of hexagon bank tube (320) is 260～320mm, and vertical length (b) is 120～160mm.
Pipe grid current equalizer for smoke processing system the most according to claim 3, it is characterized in that, the equal fluid layer of pipe grid (100,200) bank tube in is shaped as ellipse, the horizontal length (a) of oval bank tube (330) is 50～80mm, and vertical length (b) is 100～150mm.
7. according to the described pipe grid current equalizer for smoke processing system arbitrary in claim 4 to 6, it is characterized in that, adjacent bank tube (310,320 in the equal fluid layer of pipe grid (100,200), 330) spacing between uses identical set, and the center distance (c) between adjacent bank tube (310,320,330) is bank tube (310,320,330) 2～2.5 times of horizontal length.
8. according to the described pipe grid current equalizer for smoke processing system arbitrary in claim 4 to 6, it is characterized in that, pipe grid current equalizer is arranged on flue side entrance (500) place, the equal fluid layer of pipe grid (100,200) bank tube (310 in, 320,330) axially the most vertical with the flue gas flow direction at flue side entrance (500) place, and the adjacent bank tube (310 in the equal fluid layer of the first pipe grid (100) of flue side entrance (500), 320,330) spacing between uses differentiation to arrange.
Pipe grid current equalizer for smoke processing system the most according to claim 8, it is characterized in that, the adjacent bank tube (310 of the close flue side entrance (500) in the equal fluid layer of the first pipe grid (100), 320,330) spacing between is more than the adjacent bank tube (310 away from flue side entrance (500), 320,330) spacing between, and the bank tube (310 that spacing is bigger, 320,330) ratio occupied in the equal fluid layer of the first pipe grid (100) is 1/8-1/2.
10. according to the described pipe grid current equalizer for smoke processing system arbitrary in claim 4 to 6, it is characterized in that, pipe grid current equalizer is arranged in desulfuration absorbing tower, and the equal fluid layer of the second pipe grid (200) arranged near spraying layer are 1500～2000mm with the distance of the immediate spraying layer in desulfuration absorbing tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521107861.6U CN205435387U (en) | 2015-12-28 | 2015-12-28 | A pipe bars flow straightener for flue gas processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521107861.6U CN205435387U (en) | 2015-12-28 | 2015-12-28 | A pipe bars flow straightener for flue gas processing system |
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| CN205435387U true CN205435387U (en) | 2016-08-10 |
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| CN201521107861.6U Active CN205435387U (en) | 2015-12-28 | 2015-12-28 | A pipe bars flow straightener for flue gas processing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105457452A (en) * | 2015-12-28 | 2016-04-06 | 北京国能中电节能环保技术有限责任公司 | Pipe grid flow equalizing device used for flue gas treatment system |
| CN110314771A (en) * | 2019-07-24 | 2019-10-11 | 中冶赛迪技术研究中心有限公司 | A kind of coal gas of converter dehydrator |
-
2015
- 2015-12-28 CN CN201521107861.6U patent/CN205435387U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105457452A (en) * | 2015-12-28 | 2016-04-06 | 北京国能中电节能环保技术有限责任公司 | Pipe grid flow equalizing device used for flue gas treatment system |
| CN110314771A (en) * | 2019-07-24 | 2019-10-11 | 中冶赛迪技术研究中心有限公司 | A kind of coal gas of converter dehydrator |
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