CN204911024U - Pneumatic whirl parallel combination defogging device - Google Patents
Pneumatic whirl parallel combination defogging device Download PDFInfo
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- CN204911024U CN204911024U CN201520549540.5U CN201520549540U CN204911024U CN 204911024 U CN204911024 U CN 204911024U CN 201520549540 U CN201520549540 U CN 201520549540U CN 204911024 U CN204911024 U CN 204911024U
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- cylindrical shell
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Abstract
The utility model relates to a pneumatic whirl parallel combination defogging device, the device is including pneumatic whirl defogging unit and shutoff board more than one or two, the axis of pneumatic whirl defogging unit is vertical direction setting, pneumatic whirl defogging unit includes barrel, guide vanes, closing plate, guide plate, convergent section, expansive flows section and drainage section. The utility model discloses the device has improved the work velocity of flow owing to set up pneumatic whirl defogging unit and the shutoff board more than or two, has reduced limit particle diameter, and the limit particle diameter that can make device entrapment liquid drop reaches and is lighter than 15 microns to reach the effect that reduces defroster export droplet concentration, avoided the loss of water, simultaneously, also avoided the secondary pollution who causes the air.
Description
Technical field
The utility model belongs to environmental technology field, relates to flue gas demister and the application of absorption tower outlet in Wet Flue Gas Desulfurization Technology, especially a kind of air swirl parallel combination demister.
Background technology
In flue gas desulfurization technique, desulfur technology is most widely used in a wet process.Its nucleus equipment is absorption tower, and the flue gas after the washing of absorption tower, understands with a large amount of drops, with fume emission.This had both caused the loss of large water gaging, and meanwhile, in water, the particle of dissolving and suspension also together can enter air, causes air secondary to pollute.
In order to reduce the discharge of drop, prior art means install demister additional at top, absorption tower.Existing demister is in the majority with flap form, and it is better that it removes fog effect, and limit grain diameter can reach 25 microns.Because it is by the restriction of reentrainment, its operating rate can not be too high, therefore thinks to reduce its limit grain diameter further very difficult.
If think to improve except fog effect further, reduce limit grain diameter, need to be processed by combinatorial principle, improve flowing velocity further.
By retrieval, not yet find the patent publication us relevant to the utility model patent application.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part, a kind of new demister form is provided, utilize the work of air swirl principle, improve working flow rate, reduce limit grain diameter, thus reaching the air swirl parallel combination demister of the effect reducing demister outlet droplet concentration, this device can be applied in the aspect of free state drop contained in the flue gas after removing wet process of FGD.
The purpose of this utility model is achieved through the following technical solutions:
A kind of air swirl parallel combination demister, described device comprises one or more air swirl demisting unit and plugging plate, and the axis of described air swirl demisting unit is that vertical direction is arranged;
When described air swirl demisting unit is one, the top of this air swirl demisting unit and the outer rim of bottom are all connected with plugging plate;
When described air swirl demisting unit is two or more, this air swirl demisting unit is arranged in interval arranged side by side in same level, the axis of each air swirl unit parallels setting, bottom between each air swirl demisting unit is all sealed connected together by plugging plate mutually with top, is all connected with plugging plate at the outermost top of air swirl demisting unit and the outer rim of bottom.
And, described air swirl demisting unit comprises cylindrical shell, deflector, guide vane, sealing plate, converging transition, flow-expanding section and draining section, described deflector, guide vane, converging transition and flow-expanding section are set in turn in cylindrical shell from the bottom to top, described draining section is coaxially arranged on the cylindrical shell above flow-expanding section, and described deflector is inclined and mounted on the bottom in cylindrical shell;
Described guide vane is made up of multiple plane blade, the plurality of plane blade is arranged symmetrically with in circle with the center line of cylindrical shell, each plane blade all has angle with horizontal direction, and whole cross section all can all cover in the projection of the cross-sectional direction of cylindrical shell by each plane blade, and has overlap;
Described sealing plate is dull and stereotyped or curved slab, and sealing plate is arranged on the axle center place of guide vane;
Described converging transition is taper pipe, coaxially arranges with cylindrical shell, and converging transition is reduced diameter from bottom to top, and together with bottom is smoothly connected with cylinder inboard wall, the diameter of bottom is identical with the diameter of cylindrical shell, and the diameter at top is identical with the diameter of flow-expanding section;
Described flow-expanding section is taper pipe, coaxially arrange with cylindrical shell, flow-expanding section from bottom to top diameter increases gradually, together with top is smoothly connected with cylinder inboard wall, the diameter at top is identical with the diameter of cylindrical shell, the diameter of bottom is identical with the top diameter of converging transition, and the straight tube coaxially arranged by one and cylindrical shell between described converging transition and flow-expanding section is linked together;
The cylindrical shell of the below at nearly cylindrical shell top arranges draining section, described draining section comprises grade water annulus and a water leg, the inner end of described shelves water annulus is coaxially arranged in cylinder inboard wall, this cross section being located at the inner end of the shelves water annulus in cylinder inboard wall is in being inverted L shape, the outer end of this grade of water annulus to be inclined upwardly through cylinder inboard wall from inner end and to extend to outside cylindrical shell, the bent angle of arc transition is formed and the direction bent towards straight down in cylindrical shell outside, the side of shelves water annulus is connected with cylindrical shell and arranges, opposite side and the cylindrical shell interval of this shelves water annulus arranged that be connected with cylindrical shell are arranged, be arranged at below the shelves water annulus outside cylindrical shell and be coaxially provided with water leg with cylindrical shell, the diameter of this water leg is greater than the maximum gauge of the shelves water annulus outside cylindrical shell, this water leg is provided with drainage arrangement, liquid for collecting in water leg is discharged.
And described cylindrical shell is straight bucket circular tube structure, and length is 500mm to 3000mm, and internal diameter is 100mm to 1000mm, inner wall smooth, adopt the material that coefficient of friction is low.
And the material that described coefficient of friction is low is plastic products.
And described water leg is provided with drainage arrangement for arrange osculum or drainpipe on water leg.
And described guide vane, sealing plate, deflector, converging transition, flow-expanding section and the draining section arranged that be connected successively all arranges one or more layers, forms arranged in series.
And described air swirl parallel combination demister is arranged in the equipment of wet process of FGD.
And described air swirl parallel combination demister to be arranged in flue gas desulfur device absorption tower or in device independent after being arranged on absorption tower.
Advantage of the present utility model and good effect are:
1, the utility model device make use of the principle of inertial separation, under certain operating rate, droplet is flowed to barrel under the effect of centrifugal inertial force, compare traditional flap demister, the utility model is because its flowing velocity is by axially changing part into tangentially, thus entirety adds its working flow rate, and axial velocity is made to be unlikely to too high.Therefore, make to be reduced by the drop limit grain diameter of this device, the limit grain diameter that device can be made to trap drop is less than 15 microns, thus reach the effect reducing demister outlet droplet concentration, avoid the loss of water, meanwhile, it also avoid the secondary pollution causing air.
2, the utility model device due to its flowing velocity higher, bucket inner surface formed uniform water film, therefore this device to cleaning less demanding, relatively traditional chevron mist eliminator, reduces the intensity of flushing water, has saved the energy.
Accompanying drawing explanation
Fig. 1 is the anatomical connectivity partial sectional view of the utility model air swirl parallel combination device;
Fig. 2 is the anatomical connectivity enlarged diagram of air swirl demisting unit in Fig. 1;
Fig. 3 is the anatomical connectivity axle side schematic diagram of guide vane and sealing plate in Fig. 2.
Detailed description of the invention
For accompanying drawing embodiment, the utility model is described in further detail below, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
The structure do not described in detail in the utility model patent, annexation and method, all can be understood as the common practise in this area.
A kind of air swirl parallel combination demister, as shown in Figure 1, described device comprises one or more air swirl demisting unit 2 and plugging plate 3, and the axis of described air swirl demisting unit is that vertical direction is arranged;
When described air swirl demisting unit is one, the top of this air swirl demisting unit and the outer rim of bottom are all connected with plugging plate, air swirl demisting unit can be sealed mutually with the inwall of reaction unit 1 installing this device by this plugging plate and be installed together, and flue gas can only be passed through from the inner barrel of air swirl demisting unit from bottom to up;
When described air swirl demisting unit is two or more, this air swirl demisting unit is arranged in interval arranged side by side in same level, the axis of each air swirl unit parallels setting, bottom between each air swirl demisting unit is all sealed connected together by plugging plate mutually with top, all plugging plate is connected with at the outermost top of air swirl demisting unit and the outer rim of bottom, outermost air swirl demisting unit can be sealed mutually with the inwall of reaction unit installing this device by plugging plate and be installed together, flue gas can only be passed through from air swirl demisting unit inner barrel from bottom to up.
As shown in Figure 2, described air swirl demisting unit comprises cylindrical shell 4, deflector 11, guide vane 10, sealing plate 9, converging transition 8, flow-expanding section 6 and draining section 5, described deflector, guide vane, converging transition and flow-expanding section are set in turn in cylindrical shell from the bottom to top, described draining section is coaxially arranged on the cylindrical shell above flow-expanding section, described deflector is inclined and mounted on the bottom in cylindrical shell, and this deflector carries out rectification to the air-flow entering guide vane;
As shown in Figure 3, described guide vane is made up of multiple plane blade 16, the plurality of plane blade is arranged symmetrically with in circle with the center line of cylindrical shell, each plane blade all has angle with horizontal direction, whole cross section all can all cover in the projection of the cross-sectional direction of cylindrical shell by each plane blade, and has overlap;
Described sealing plate is dull and stereotyped or curved slab, and sealing plate is arranged on the axle center place of guide vane, and make multiple plane blade form the uniform of circle symmetry around sealing plate, the effect of sealing plate is closed stream lending blade center region, makes it flow field and is more conducive to gas-liquid separation;
Described converging transition is taper pipe, coaxially arranges with cylindrical shell, and converging transition is reduced diameter from bottom to top, and together with bottom is smoothly connected with cylinder inboard wall, the diameter of bottom is identical with the diameter of cylindrical shell, and the diameter at top is identical with the diameter of flow-expanding section;
Described flow-expanding section is taper pipe, coaxially arrange with cylindrical shell, flow-expanding section from bottom to top diameter increases gradually, together with top is smoothly connected with cylinder inboard wall, the diameter at top is identical with the diameter of cylindrical shell, the diameter of bottom is identical with the top diameter of converging transition, and the straight tube 7 coaxially arranged by one and cylindrical shell between described converging transition and flow-expanding section is linked together;
The cylindrical shell of the below at nearly cylindrical shell top arranges draining section, described draining section comprises a grade water annulus (in figure non-label) and water leg 12, the inner end 15 of described shelves water annulus is coaxially arranged in cylinder inboard wall, this cross section being located at the inner end of the shelves water annulus in cylinder inboard wall is in being inverted L shape, the outer end 13 of this grade of water annulus to be inclined upwardly through cylinder inboard wall from inner end and to extend to outside cylindrical shell, the bent angle 14 of arc transition is formed and the direction bent towards straight down in cylindrical shell outside, the side of shelves water annulus is connected with cylindrical shell and arranges, opposite side and the cylindrical shell interval of this shelves water annulus arranged that be connected with cylindrical shell are arranged, be arranged at below the shelves water annulus outside cylindrical shell and be coaxially provided with water leg with cylindrical shell, the diameter of this water leg is greater than the maximum gauge of the shelves water annulus outside cylindrical shell, the drop that this water leg flows down on the shelves water annulus that surge drum is external, this water leg is provided with drainage arrangement, liquid for collecting in water leg is discharged, such as osculum or drainpipe are set on water leg.
In the present embodiment, described cylindrical shell is straight bucket circular tube structure, and length is 500mm to 3000mm, and internal diameter is 100mm to 1000mm, inner wall smooth, and adopt the material that coefficient of friction is low, as plastic products, such anti-adhesive properties is good, reduces the use of flushing water.
In the present embodiment, described guide vane, sealing plate, deflector, converging transition, flow-expanding section and the draining section arranged that be connected successively all can arrange one or more layers according to actual needs, forms arranged in series.
Air swirl demister, can change according to the burden requirement of different operating, change element number, deflector parameters, blade parameters and quantity, sealing plate form, converging transition flow velocity etc., to reach different load, different removal efficiency and otherwise limit particle diameter object.
Air swirl demister, the low material of coefficient of friction can be adopted to make, and as plastic products, such anti-adhesive properties is good, reduces the use of flushing water.
The using method of the utility model air swirl parallel combination demister is as follows:
The utility model air swirl parallel combination demister can be installed in flue gas desulfur device absorption tower or device independent after being arranged on absorption tower or in the reaction unit 1 of independent deentrainment tower or similar functions in use, flue gas flows from bottom to top, this application of installation is in the middle of the equipment of wet process of FGD, effect is free state drop contained in the flue gas after removing wet process of FGD, and the limit grain diameter that the utility model device can make device trap drop is less than 15 microns.
The operation principle of the utility model air swirl parallel combination demister is as follows:
Processed flue gas enters cylindrical shell from bottom to top, through the rectification of deflector, enters guide vane section, under the effect of guide vane, form spinning updraft, make the velocity attitude of air-flow transform like this and form tangential velocity, make the drop in air-flow obtain centrifugal force, move to barrel direction.The center of guide vane, arranges sealing plate, and the effect of sealing plate is closed stream lending blade center region, makes it flow field and is more conducive to gas-liquid separation.Swirling eddy moves upward, and enters converging transition and flow-expanding section, and air-flow latus rectum reduces, and flue gas flow rate is accelerated, drop separation effect is improved, and makes some droplets produce and gather, be combined into the drop of Large stone, thus more easily removed by follow-up, through above step, most of drop is removed.If according to the requirement of removal efficiency, can not satisfy the demand, then can increase some groups of guide vanes, sealing plate, deflector, converging transition, flow-expanding section.At cylindrical shell close to top exit position, arrange draining section, water leg has drainage arrangement, can by the setting of osculum and drainpipe, and the liquid collected by water leg is discharged.
Claims (8)
1. an air swirl parallel combination demister, is characterized in that: described device comprises one or more air swirl demisting unit and plugging plate, and the axis of described air swirl demisting unit is that vertical direction is arranged;
When described air swirl demisting unit is one, the top of this air swirl demisting unit and the outer rim of bottom are all connected with plugging plate;
When described air swirl demisting unit is two or more, this air swirl demisting unit is arranged in interval arranged side by side in same level, the axis of each air swirl unit parallels setting, bottom between each air swirl demisting unit is all sealed connected together by plugging plate mutually with top, is all connected with plugging plate at the outermost top of air swirl demisting unit and the outer rim of bottom.
2. air swirl parallel combination demister according to claim 1, it is characterized in that: described air swirl demisting unit comprises cylindrical shell, deflector, guide vane, sealing plate, converging transition, flow-expanding section and draining section, described deflector, guide vane, converging transition and flow-expanding section are set in turn in cylindrical shell from the bottom to top, described draining section is coaxially arranged on the cylindrical shell above flow-expanding section, and described deflector is inclined and mounted on the bottom in cylindrical shell;
Described guide vane is made up of multiple plane blade, the plurality of plane blade is arranged symmetrically with in circle with the center line of cylindrical shell, each plane blade all has angle with horizontal direction, and whole cross section all can all cover in the projection of the cross-sectional direction of cylindrical shell by each plane blade, and has overlap;
Described sealing plate is dull and stereotyped or curved slab, and sealing plate is arranged on the axle center place of guide vane;
Described converging transition is taper pipe, coaxially arranges with cylindrical shell, and converging transition is reduced diameter from bottom to top, and together with bottom is smoothly connected with cylinder inboard wall, the diameter of bottom is identical with the diameter of cylindrical shell, and the diameter at top is identical with the diameter of flow-expanding section;
Described flow-expanding section is taper pipe, coaxially arrange with cylindrical shell, flow-expanding section from bottom to top diameter increases gradually, together with top is smoothly connected with cylinder inboard wall, the diameter at top is identical with the diameter of cylindrical shell, the diameter of bottom is identical with the top diameter of converging transition, and the straight tube coaxially arranged by one and cylindrical shell between described converging transition and flow-expanding section is linked together;
The cylindrical shell of the below at nearly cylindrical shell top arranges draining section, described draining section comprises grade water annulus and a water leg, the inner end of described shelves water annulus is coaxially arranged in cylinder inboard wall, this cross section being located at the inner end of the shelves water annulus in cylinder inboard wall is in being inverted L shape, the outer end of this grade of water annulus to be inclined upwardly through cylinder inboard wall from inner end and to extend to outside cylindrical shell, the bent angle of arc transition is formed and the direction bent towards straight down in cylindrical shell outside, the side of shelves water annulus is connected with cylindrical shell and arranges, opposite side and the cylindrical shell interval of this shelves water annulus arranged that be connected with cylindrical shell are arranged, be arranged at below the shelves water annulus outside cylindrical shell and be coaxially provided with water leg with cylindrical shell, the diameter of this water leg is greater than the maximum gauge of the shelves water annulus outside cylindrical shell, this water leg is provided with drainage arrangement, liquid for collecting in water leg is discharged.
3. air swirl parallel combination demister according to claim 2, is characterized in that: described cylindrical shell is straight bucket circular tube structure, and length is 500mm to 3000mm, and internal diameter is 100mm to 1000mm, inner wall smooth, adopts the material that coefficient of friction is low.
4. air swirl parallel combination demister according to claim 3, is characterized in that: the material that described coefficient of friction is low is plastic products.
5. air swirl parallel combination demister according to claim 2, is characterized in that: described water leg is provided with drainage arrangement for arrange osculum or drainpipe on water leg.
6. the air swirl parallel combination demister according to any one of claim 2 to 5, it is characterized in that: described guide vane, sealing plate, deflector, converging transition, flow-expanding section and the draining section arranged that be connected successively all arranges one or more layers, forms arranged in series.
7. the air swirl parallel combination demister according to any one of claim 1 to 5, is characterized in that: described air swirl parallel combination demister is arranged in the equipment of wet process of FGD.
8. air swirl parallel combination demister according to claim 7, is characterized in that: described air swirl parallel combination demister to be arranged in flue gas desulfur device absorption tower or in device independent after being arranged on absorption tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520549540.5U CN204911024U (en) | 2015-07-27 | 2015-07-27 | Pneumatic whirl parallel combination defogging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520549540.5U CN204911024U (en) | 2015-07-27 | 2015-07-27 | Pneumatic whirl parallel combination defogging device |
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| Publication Number | Publication Date |
|---|---|
| CN204911024U true CN204911024U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520549540.5U Withdrawn - After Issue CN204911024U (en) | 2015-07-27 | 2015-07-27 | Pneumatic whirl parallel combination defogging device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984597A (en) * | 2015-07-27 | 2015-10-21 | 航天环境工程有限公司 | Pneumatic-cyclone parallel-combination demister and application thereof |
| CN105498434A (en) * | 2016-01-29 | 2016-04-20 | 王建平 | Multi-cyclone dust and mist collector unit and multi-cyclone dust and mist collector |
| CN106178783A (en) * | 2016-08-10 | 2016-12-07 | 江苏垦乐节能环保科技有限公司 | After sintering wet desulphurization, the dust degree of depth removes integrating device |
| CN107224788A (en) * | 2017-07-19 | 2017-10-03 | 合肥天翔环境工程有限公司 | A kind of spiral board demister |
-
2015
- 2015-07-27 CN CN201520549540.5U patent/CN204911024U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984597A (en) * | 2015-07-27 | 2015-10-21 | 航天环境工程有限公司 | Pneumatic-cyclone parallel-combination demister and application thereof |
| CN104984597B (en) * | 2015-07-27 | 2016-09-07 | 航天环境工程有限公司 | A kind of air swirl parallel combination demister and application |
| CN105498434A (en) * | 2016-01-29 | 2016-04-20 | 王建平 | Multi-cyclone dust and mist collector unit and multi-cyclone dust and mist collector |
| CN106178783A (en) * | 2016-08-10 | 2016-12-07 | 江苏垦乐节能环保科技有限公司 | After sintering wet desulphurization, the dust degree of depth removes integrating device |
| CN107224788A (en) * | 2017-07-19 | 2017-10-03 | 合肥天翔环境工程有限公司 | A kind of spiral board demister |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20160907 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |