CN208389574U - Bundled tube demister - Google Patents
Bundled tube demister Download PDFInfo
- Publication number
- CN208389574U CN208389574U CN201820548127.0U CN201820548127U CN208389574U CN 208389574 U CN208389574 U CN 208389574U CN 201820548127 U CN201820548127 U CN 201820548127U CN 208389574 U CN208389574 U CN 208389574U
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- China
- Prior art keywords
- tubular shell
- waist
- straight tube
- cone cylinder
- demister
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Abstract
The utility model discloses a kind of bundled tube demisters, including tubular shell, several acceleration cyclone structures axially arranged along the tubular shell are equipped in the tubular shell, the acceleration cyclone structure includes straight tube and down big up small tapered frustum of a cone cylinder, the straight tube is connect with the upper end of the tapered frustum of a cone cylinder, the lower end of the tapered frustum of a cone cylinder is connect with the inner wall of the tubular shell, the guide vane for being used to form swirl channel is equipped in the straight tube, several waist-shaped holes corresponding with cyclone structure position is accelerated on the tubular shell, the waist-shaped hole length direction and vertical direction angle are 30 °~80 °.The bundled tube demister, which can be reduced, accelerates cyclone structure stacking quantity, and the bundled tube demister structure is simple, and manufacturing cost is low.
Description
Technical field
The utility model relates to a kind of demisters, more particularly to a kind of bundled tube demister.
Background technique
The demister equipment being arranged in wet desulfurizing process equipment desulfurizing tower, is the key that in wet method fume desulfurizing system
Equipment, function are to collect wet desulphurization spray tube slurries to collect SO2After gas, cleaned gas discharge desulfurizing tower it
Water mist in preceding removing flue gas.Residual liquid content is not more than 75mg/Nm after general demister3(butt) was actually using
Cheng Zhong, demister fouling are distinct issues, be easy to cause local stoppages, it is serious in addition cause it is whole collapse, give desulfurization peace
Row for the national games brings hidden danger.
Chinese patent CN206325309U discloses a kind of bundled tube demister comprising multiple cylindrical shape demisters,
Multiple cylindrical shape demisters form a bundled tube structure at the top of absorption tower, and demister includes cylinder shell and setting
One or more guide layers inside cylinder shell, multiple guide layers are uniformly arranged in cylindrical shell from the bottom to top
Internal portion, guide layer include for increasing the speed increaser of flow rotation speed, for point of different-grain diameter droplet in separating flue
From device, collector ring and guide ring, collector ring and guide ring are successively set on the top of the separator, the separator packet
The multiple guide vanes being uniformly arranged are included, the guide vane is regular to be obliquely installed.This demister is by flue gas
The effect of inertia and gravity of drop are working principle, and flue gas forms eddy flow under blade effect, under the conditions of variable diameter, speed
Variation so that small droplet and grit mixing rotation to barrel formed liquid film layer, formed when small droplet constantly captures small droplet
After big droplet, fall back in desulfurizing tower under the effect of gravity, plays demisting dustproof function.Mist can be captured compared to chevron mist eliminator
It is wide to drip particle size range, by multi-layer rotational flow demisting, multistage demisting process can be formed, defogging effect is obvious, should not be blocked.However this
Kind structure causes flue gas and fume droplet in the same channel in which not can avoid, and because of the influence of high-speed flow, causes one
Divide droplet reentrainment, enters flue gas and cause new fog, and after dense fog drops on blade under the action of air-flow, again
Occur " aproll ", form new droplet and enter in flue gas, opposing demister effect be deteriorated, it is necessary to by way of multiple-layer stacked into
Demisting dedusting can be only achieved ideal effect to row repeatedly.
Utility model content
In view of the above shortcomings of the prior art, the utility model provides a kind of bundled tube demister, solves air-flow and catches
The drop contact of collection forms the problem of reentrainment influences defogging effect.
Technical solutions of the utility model are as follows: a kind of bundled tube demister, including tubular shell, set in the tubular shell
There are several acceleration cyclone structures axially arranged along the tubular shell, the acceleration cyclone structure includes straight tube and down big up small
Tapered frustum of a cone cylinder, the straight tube connect with the upper end of the tapered frustum of a cone cylinder, the tapered frustum of a cone cylinder
Lower end is connect with the inner wall of the tubular shell, and the guide vane for being used to form swirl channel, the cylinder are equipped in the straight tube
Several waist-shaped holes corresponding with cyclone structure position is accelerated, the waist-shaped hole length direction and vertical direction angle on shape shell
It is 30 °~80 °.
The technical solution of the utility model accelerates flue gas in demister by tapered frustum of a cone cylinder, increases flue gas
The swirl strength of middle flue dust and droplet makes flue gas grow up by fine mist Fast Collision after guide vane, forms big droplet.Greatly
Droplet accelerates to reach the water film of inner walls under the action of the centrifugal, and is constantly enriched with, and flows under the influence of gravity into tubular shell
Hydrops slot between tapered frustum of a cone cylinder, it is rear to be discharged outside shell.Flue dust in flue gas equally by centrifugal action fast enriching to
Inner walls, and captured by water film, increase dust removing effects.Due to having retained a small amount of hydrops in hydrops slot, be conducive to capture
Flue dust prevents flue dust fugitive dust again, and the accumulation for being more advantageous to flue dust excludes.Straight tube and tubular shell form it is two layers inside and outside, point
Every gas-liquid channel, reduce the contact of air-flow with the droplet of accumulation and moisture film, reduces smoke secondary entrainment water droplet；Product simultaneously
Poly- droplet and moisture film flow into hydrops slot, avoid being entrained after being back to guide vane formation aproll, improve demisting dust removing effects.
Preferably, the waist-shaped hole length direction and vertical direction angle are 40 °~60 °.
Preferably, the waist-shaped hole is equipped with 4~6, is uniformly distributed in the circumferencial direction of the tubular shell.
Preferably, the junction of the tapered frustum of a cone cylinder and straight tube is located at the middle part of straight tube.
Preferably, the acceleration cyclone structure is no less than two.
The advantages of technical solution provided by the utility model is: bundled tube demister shape is in line cylindrical shape, more
A bundled tube demister can be arranged multiple in a limited space, and unit cross-sectional area airflow area is big, the waist type being obliquely installed
Hole is more conducive to the exclusion of dust-laden drop relative to vertical channel or circular hole and is not easy to plug；In identical height, compared with the prior art
Demister disclosed in CN206325309U, which can be reduced, accelerates cyclone structure superposition quantity, and reaches identical defogging effect.The pipe
Beam formula demister has structure simple, the low advantage of manufacturing cost.
Detailed description of the invention
Fig. 1 is bundled tube demister structural schematic diagram.
Fig. 2 is to accelerate cyclone structure partial schematic diagram.
Specific embodiment
Below with reference to embodiment, the utility model is described in further detail, but not as the restriction to the utility model.
Incorporated by reference to shown in Fig. 1 and Fig. 2, bundled tube demister, including tubular shell 1, tubular shell 1 are interior along tubular shell axis
To two acceleration cyclone structures 2 of arrangement, what two acceleration cyclone structures 2 were located at tubular shell 1 is whole apart from bottom level
At 1 height 1/4 of body tubular shell and at 2/3.Accelerating cyclone structure 2 includes 3 He of straight tube that a diameter is less than tubular shell
One down big up small tapered frustum of a cone cylinder 4.It is connect at the upper end of tapered frustum of a cone cylinder 4 and the 1/2 of straight tube 3, tapered section
The lower end of head taper cone barrel 4 is connect with the inner wall of tubular shell 1.The guide vane 5 for being used to form swirl channel is equipped in straight tube 3,
5 structure of guide vane with it is identical in the prior art, guide vane disclosed in CN206325309U can be directlyed adopt, it can also be used
His centrifugal guide vane as used in cyclone dust collectors the purpose is to flow through the dust-contained airflow of guide vane 5 to play rotation, and then utilizes
Centrifugal force carries out the separation of gas-liquid, gas-solid.On tubular shell 1 with accelerate that 2 position of cyclone structure is corresponding opens up 4 to 6 waists
Type hole 6, waist-shaped hole 6 are uniformly distributed in the circumferencial direction of tubular shell 1, and 6 length direction of waist-shaped hole is with vertical direction angle a
30 °~80 °.In the present embodiment, 6 length direction of waist-shaped hole and vertical direction angle are 45 °, and the top of waist-shaped hole 6 is not higher than straight
The upper edge of cylinder 3.And pass through application experiment, 6 length direction of waist-shaped hole and vertical direction angle a are 40 °~60 °, waist-shaped hole 6 for
The diversion effect of dust-laden drop is preferable, can guarantee to be run for a long time without blocking.
By the shock measurement method of VDI 3679, if uneven velocity flow profile limit is 20%, to 15 μ m diameter liquid
Minimum measurement made by drop is accumulative.The flue gas residual liquid content about 26mg/Nm that the present embodiment bundled tube demister row is removed3, than
Chevron mist eliminator 75mg/Nm3Reduce about 65%, with bundled tube demister 25mg/Nm disclosed in CN206325309U3Quite,
But it is to be superimposed on two layers that the present embodiment, which accelerates cyclone structure, structure is more simple compared with bundled tube demister disclosed in CN206325309U
It is single.
Claims (5)
1. a kind of bundled tube demister, it is characterised in that: be equipped with including tubular shell, in the tubular shell several along the cylinder
The acceleration cyclone structure that shape shell is axially arranged, the acceleration cyclone structure includes straight tube and down big up small tapered frustum of a cone
Cylinder, the straight tube are connect with the upper end of the tapered frustum of a cone cylinder, the lower end of the tapered frustum of a cone cylinder and the tubular
The inner wall of shell connects, and is equipped with the guide vane for being used to form swirl channel in the straight tube, on the tubular shell with acceleration
The corresponding several waist-shaped holes in cyclone structure position, the waist-shaped hole length direction and vertical direction angle are 30 °~80 °.
2. bundled tube demister according to claim 1, it is characterised in that: the waist-shaped hole length direction and vertical direction
Angle is 40 °~60 °.
3. bundled tube demister according to claim 1, it is characterised in that: the waist-shaped hole is equipped with 4~6, uniformly divides
It is distributed in the circumferencial direction of the tubular shell.
4. bundled tube demister according to claim 1, it is characterised in that: the company of tapered the frustum of a cone cylinder and straight tube
Connect the middle part that place is located at straight tube.
5. bundled tube demister according to claim 1, it is characterised in that: the acceleration cyclone structure is no less than two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820548127.0U CN208389574U (en) | 2018-04-18 | 2018-04-18 | Bundled tube demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820548127.0U CN208389574U (en) | 2018-04-18 | 2018-04-18 | Bundled tube demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208389574U true CN208389574U (en) | 2019-01-18 |
Family
ID=65063830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820548127.0U Active CN208389574U (en) | 2018-04-18 | 2018-04-18 | Bundled tube demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208389574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479200A (en) * | 2018-04-18 | 2018-09-04 | 江苏鑫华能环保工程股份有限公司 | Bundled tube demister |
-
2018
- 2018-04-18 CN CN201820548127.0U patent/CN208389574U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479200A (en) * | 2018-04-18 | 2018-09-04 | 江苏鑫华能环保工程股份有限公司 | Bundled tube demister |
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