CN206597424U - A kind of venturi bundled tube dedusting demister - Google Patents
A kind of venturi bundled tube dedusting demister Download PDFInfo
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- CN206597424U CN206597424U CN201720351622.8U CN201720351622U CN206597424U CN 206597424 U CN206597424 U CN 206597424U CN 201720351622 U CN201720351622 U CN 201720351622U CN 206597424 U CN206597424 U CN 206597424U
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- venturi
- spray gun
- fluid spray
- tube
- centrifugal device
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Abstract
The utility model is related to flue gas ash removal demisting technical field, more particularly to a kind of venturi bundled tube dedusting demister, including Venturi tube, single-fluid spray gun, centrifugal device, expansion chamber and drain bar, Venturi tube bottom is arranged on the circular hole of drain bar, some single-fluid spray guns are provided with its lower end contraction section outer wall, its upper end is provided with centrifugal device, and centrifugal device top is provided with expansion chamber.The utility model is by the way that single-fluid spray gun to be arranged on to the bottleneck of Venturi tube, the water smoke for spraying single-fluid spray gun becomes more tiny droplet by Venturi effect, the fine solid particle and gypsum droplet of (especially PM2.5) can be removed below 20 μm of particle diameter, so as to improve the effect of dedusting demisting, after dust-laden liquid is separated by centrifugal device, into enlarged cavity room, depart from the contact with upward gas, the reentrainment of gas-liquid is avoided, the effect of dedusting demisting is further increased.
Description
Technical field
The utility model is related to flue gas ash removal demisting technical field, more particularly to a kind of venturi bundled tube dedusting demisting
Device.
Background technology
At present, the minimum discharge of coal-fired plant flue gas pollutant relates generally to the discharge of NOx, SO2 and flue dust, and it is at this stage
Difficult point is how to realize high-effective dust-removing.China's Desulphurization for Coal-fired Power Plant technique generally uses Limestone-gypsum Wet Flue Gas Desulfurization Process technique,
Demister is installed and comes demisting and dedusting in desulfurizing tower top.At this stage, Treatment process route is cooperateed with to realize flue dust using flue gas
5mg/Nm3 minimum discharge increasingly becomes main flow, and the technology path realizes that successfully key is exactly wet method for flue dust minimum discharge
Desulfurizing tower need to possess very strong collaboration dust collection capacity.Conventional one-level tubular type+three-level ridge type demister is mechanical demister,
It is that dust and droplet are removed based on inertial collision theory, its cut diameter is about 20 μm, to more than 20 μm of powder of particle diameter
Dirt and gypsum droplet removal efficiency are more than 99%, and relatively low to the dust and gypsum droplet removal efficiency below 20 μm of particle diameter, make
Obtain in desulfurizing tower exiting flue gas and unavoidably carry a large amount of fine solid particles and gypsum droplet, easily trigger chimney gypsum rain phenomenon.
Therefore, develop more efficient dedusting demister and just seem and be highly desirable to, and it is significant.
Utility model content
The utility model overcomes above-mentioned the deficiencies in the prior art, and there is provided a kind of venturi bundled tube high-effective dust-removing demisting
Device.
The technical solution of the utility model：
A kind of venturi bundled tube dedusting demister, including Venturi tube, single-fluid spray gun, centrifugal device, expansion chamber
And drain bar；
The Venturi tube bottom is arranged on the circular hole of drain bar, and the spray of several single fluids is provided with its bottom outer wall
Centrifugal device is provided with rifle, its upper inside wall, the Venturi tube upper end is provided with expansion chamber；
The chamber that expands is the pipeline that one section of diameter is more than smoke pipe, its lower end and smoke pipe formation circular channels, its upper end
It is connected by chamfering with flue.
Further, the shower nozzle of the single-fluid spray gun is set up, and shower nozzle is located at the bottleneck of Venturi tube.
Further, the atomizing particle size of the single-fluid spray gun is 100~200 μm.
Further, the centrifugal device 3 is made up of multiple centrifugal rotational flow pieces, and the angle of inclination of centrifugal rotational flow piece
Unanimously.
Further, the flow control of the Venturi tube bottleneck is in 20~30m/s.
Further, some rhones are provided with the drain bar.
The beneficial effects of the utility model are：
1) the utility model makes what single-fluid spray gun sprayed by the way that single-fluid spray gun to be arranged on to the bottleneck of Venturi tube
Water smoke becomes more tiny droplet by Venturi effect, can remove below 20 μm of particle diameter the trickle powder of (especially PM2.5)
Dirt and gypsum droplet, so as to improve the effect of dedusting demisting.
2) the utility model is provided with expansion chamber, after dust-laden liquid is separated by centrifugal device, into enlarged cavity room, takes off
From the contact with upward gas, it is to avoid the reentrainment of gas-liquid, while the liquid collected in enlarged cavity room is through bottom drain holes
Discharge, it also avoid the liquid of enrichment by reentrainment, further increases the effect of dedusting demisting.
Brief description of the drawings
Fig. 1 is a kind of venturi bundled tube dedusting demister structure chart；
Fig. 2 is a kind of layout drawing of venturi bundled tube dedusting demister in desulfurizing tower；
Fig. 3 is the A-A profiles in Fig. 2；
In figure：1- Venturi tubes；2- single-fluid spray guns；3- centrifugal devices；4- expands chamber；5- drain bars.
Embodiment
Below with reference to accompanying drawing, the utility model is described in detail：
With reference to shown in Fig. 1 to Fig. 3, a kind of venturi bundled tube dedusting demister disclosed in the present embodiment, including venturi
Pipe 1, single-fluid spray gun 2, centrifugal device 3, expansion chamber 4 and drain bar 5；
The bottom of Venturi tube 1 is arranged on the circular hole of drain bar 5, and several single-fluid spray guns are provided with its bottom outer wall
2, the water droplet of penetrating passes through Venturi effect, becomes more tiny droplet, substantially increases the collision probability of water droplet and dust, more
Beneficial to the coalescence of fine dusts.
Centrifugal device 3 is provided with the upper inside wall of Venturi tube 1, the dust-laden drop through coalescence passes through centrifugal device 3
Centrifugal action separated with flue gas.
The upper end of Venturi tube 1 is provided with expansion chamber 4, and the dust-laden liquid isolated through centrifugal device 3 falls into expansion chamber 4
It is interior, depart from the contact with upward gas, it is to avoid the reentrainment of gas-liquid, while expanding the liquid of collection in chamber 4 through bottom
Osculum is discharged, and it also avoid the liquid of enrichment by reentrainment.
It is the pipeline that one section of diameter is more than smoke pipe, its lower end and smoke pipe formation circular channels to expand chamber 4, and its upper end passes through
Chamfering is connected with flue.
Specifically, the shower nozzle of single-fluid spray gun 2 is set up, and shower nozzle is located at the bottleneck of Venturi tube 1.
Specifically, the atomizing particle size of single-fluid spray gun 2 is 100~200 μm.
Specifically, centrifugal device 3 is made up of multiple centrifugal rotational flow pieces, and the angle of inclination of centrifugal rotational flow piece is consistent.
Specifically, the flow control of the bottleneck of Venturi tube 1 is in 20~30m/s.
Specifically, some rhones are provided with drain bar 5, the dust-laden liquid discharged by Venturi tube 1 is pooled to
In the rhone of drain bar 5, the drainpipe through rhone bottom is drained into outside absorption tower.
The utility model is arranged on desulfurizing tower top, on top layer absorbent slurry spraying layer, in absorption tower
Saturation wet flue gas enters Venturi tube 1 from below in even arrangement, desulfuration spray tower, and single-fluid spray gun 2 is located at the contracting of Venturi tube 1
At neck, the flow control of bottleneck is in 20~30m/s, and the atomizing particle size of spray gun is 100~200 μm.
By Venturi effect, the water smoke of penetrating becomes more tiny droplet, substantially increases the collision of water droplet and dust
The dust granules of dust and droplet coalescence Cheng Geng great in the coalescence of probability, more conducively fine dusts, flue gas, afterwards
Separated by centrifugal device 3, centrifugal device 3 is made up of multiple centrifugal rotational flow pieces, centrifugal rotational flow piece is well-regulated to incline
Tiltedly set.
Dust-laden drop through coalescence is separated by the centrifugal action of centrifugal device 3 with flue gas, falls into centrifugation dress
In the expansion chamber 4 for putting 3 tops, depart from the contact with upward gas, it is to avoid the reentrainment of gas-liquid, dust-laden liquid is by expanding
Osculum in chamber 4 is discharged to outside Venturi tube, and the dust-laden liquid of discharge is pooled in the rhone of drain bar, through under rhone
The drainpipe in portion is drained into outside absorption tower, realizes efficient dedusting and demisting.
Above example is the exemplary illustration to this patent, does not limit its protection domain, people in the art
Member can also be changed to its part, as long as no the Spirit Essence beyond this patent, all in the protection domain of this patent.
Claims (6)
1. a kind of venturi bundled tube dedusting demister, it is characterised in that including Venturi tube (1), single-fluid spray gun (2), from
Center device (3), expansion chamber (4) and drain bar (5)；
Venturi tube (1) bottom is arranged on the circular hole of drain bar (5), and several single fluids are provided with its bottom outer wall
Centrifugal device (3) is provided with spray gun (2), its upper inside wall, the upper end of the Venturi tube (1) is provided with expansion chamber (4)；
The chamber (4) that expands is the pipeline that one section of diameter is more than smoke pipe, its lower end and smoke pipe formation circular channels, bottom of gullet
Osculum is provided with, its upper end is connected by chamfering with flue.
2. a kind of venturi bundled tube dedusting demister according to claim 1, it is characterised in that the single-fluid spray gun
(2) shower nozzle is set up, and shower nozzle is located at the bottleneck of Venturi tube (1).
3. a kind of venturi bundled tube dedusting demister according to claim 2, it is characterised in that the single-fluid spray gun
(2) atomizing particle size is 100~200 μm.
4. a kind of venturi bundled tube dedusting demister according to claim 1, it is characterised in that the centrifugal device
(3) it is made up of multiple centrifugal rotational flow pieces, and the angle of inclination of centrifugal rotational flow piece is consistent.
5. a kind of venturi bundled tube dedusting demister according to claim 1, it is characterised in that the Venturi tube
(1) flow control of bottleneck is in 20~30m/s.
6. a kind of venturi bundled tube dedusting demister according to claim 1, it is characterised in that the drain bar (5)
On be provided with some rhones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720351622.8U CN206597424U (en) | 2017-04-05 | 2017-04-05 | A kind of venturi bundled tube dedusting demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720351622.8U CN206597424U (en) | 2017-04-05 | 2017-04-05 | A kind of venturi bundled tube dedusting demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206597424U true CN206597424U (en) | 2017-10-31 |
Family
ID=60145338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720351622.8U Expired - Fee Related CN206597424U (en) | 2017-04-05 | 2017-04-05 | A kind of venturi bundled tube dedusting demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206597424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731430A (en) * | 2017-04-05 | 2017-05-31 | 哈尔滨锅炉厂环保工程技术有限公司 | A kind of venturi bundled tube dedusting demister |
-
2017
- 2017-04-05 CN CN201720351622.8U patent/CN206597424U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731430A (en) * | 2017-04-05 | 2017-05-31 | 哈尔滨锅炉厂环保工程技术有限公司 | A kind of venturi bundled tube dedusting demister |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171031 Termination date: 20210405 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |