CN203777883U - Venturi type demister - Google Patents
Venturi type demister Download PDFInfo
- Publication number
- CN203777883U CN203777883U CN201420177782.1U CN201420177782U CN203777883U CN 203777883 U CN203777883 U CN 203777883U CN 201420177782 U CN201420177782 U CN 201420177782U CN 203777883 U CN203777883 U CN 203777883U
- Authority
- CN
- China
- Prior art keywords
- venturi
- demister
- layer
- type
- rod layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a Venturi type demister, which comprises an upper stage demister, a lower stage demister and a Venturi demisting unit arranged between the two stages of demisters, wherein a Venturi stick unit comprises a layer of Venturi stick layer or two layers of Venturi stick layers which are formed one above the other at a certain interval; each Venturi stick layer comprises a plurality of stick bodies which are arranged side by side at certain intervals; spaced openings between every two adjacent stick bodies form an air current channel having a Venturi type structure. The Venturi type demister mainly aims at the improvement on the performance of a wet type collision demister in a desulfurizing tower serving as core equipment in a gypsum method for treating industrial waste gas wet limestone, and the phenomenon of dropping of water or gypsum from a chimney can be avoided completely with minimum capital investment and minimum running and maintenance costs.
Description
Technical field
The utility model relates to a kind of venturi type demister.
Background technology
The demister using in flue gas desulphurization system is impacting type demister.In this impacting type demister, drop by target seizure by inertial collision, directly tackle and spread 3 kinds of mechanism and complete.
When band shredded tobacco for water pipes gas enters after demister, change due to flue gas flow direction, the centrifugal force producing by the part droplets impact its in flue gas on the wall heading on, under the effect of sweep of gases, liquid film on wall is collected in to the flex point place being connected with next passage, form after thicker cascade along under wall flow.In chevron mist eliminator, very tiny Particles Moving track is away from rectilinear.Therefore, flap demister is applicable to the separation of relative oversize grain, for tiny droplet particles, must apply the demister of other form.
Demist region is comprised of two-stage demister conventionally, and this two-stage design is applied to vertical smoke gas flow conventionally.Lower one-level, or the demister of the first order is commonly called coarse separator or bulky grain entrainment trap.Its very typical feature is its large capacity, open by design, and object is to remove liquid as much as possible.This V-arrangement plane demister can rinse from top and bottom intermittently.Second level demister moves under more dry environment, more effective for the first order, normally from bottom, rinses intermittently.The performance of necessary balance demister two-stage, because every one-level all can exert an influence to the performance of another grade.
Wet impact formula flap demister has simple in structure, high to the capture rate of medium size and large scale drop, and pressure drop is low, be difficult for stopping up, can process foreign material such as containing dust, easily rinse, and has the advantages such as unenclosed construction is convenient to maintenance and expense is lower.The manufacturer of flue gas desulfurization device extensively adopts flap demister both at home and abroad.
In actual applications, problem due to aspects such as design, processing, installations, it is mainly the design problem due to wet impact formula chevron mist eliminator itself, cause the requirement that does not reach demist, flue gas is with water in a large number, even carry gypsum secretly and arrange outward, cause upstream device corrosion, chimney rains or the serious problem such as lower gypsum rain.
Utility model content
The problem existing for prior art, the purpose of this utility model is to provide a kind of structure improved venturi type demister.
For achieving the above object, the utility model venturi type demister, comprise higher level's demister, subordinate's demister, and be arranged on the venturi demisting unit between two-stage demister, this Venturi rod unit comprises one deck Venturi rod layer or two-layer upper and lower spaced Venturi rod layer, Venturi rod layer comprises spaced several barred bodies side by side, and between two adjacent barred bodies, the perforate at interval forms the gas channel of venturi type structure.
Further, described higher level's demister, subordinate's demister are the demister of wet type, impacting type, folded plate type.
Further, described venturi demisting unit also comprises the flusher of portion disposed thereon and bottom.
Further, described in several, between barred body, by beam frame structure support and connection, become an integral body.
Further, the cross section of described barred body is circular or square, and when mounted, its two pairs of diagonal angles are positioned at vertical direction and level is square for the described barred body of square structure form.
The 30%-40% of the top surface area that further, the gross area of described perforate is Venturi rod layer.
Further, between two-layer described Venturi rod layer, for shifting to install, the described perforate arranging on Venturi rod layer described in levels is that mutual correspondence shifts to install.
Further, between the spacing between two-layer described Venturi rod layer is described barred body radius distance value and diameters.
Further, the material of described barred body is fiberglass, carbon steel, steel alloy or TP, and the heatproof degree of described barred body is less than 80 ℃.
The utility model is mainly for industrial waste gas Wet Limestone, the nucleus equipment of gypsum, the improvement of the performance of the wet impact formula demister in desulfurizing tower, available minimum fund input, minimum operation and maintenance cost, thoroughly solve that chimney rains or the phenomenon of lower gypsum rain.
Accompanying drawing explanation
Fig. 1 is the structural representation of the tubular demister of slab construction
Fig. 2 is A portion enlarged drawing in Fig. 1;
Fig. 3 is the structural representation of the tubular demister of ridge structure;
Fig. 4 is B portion enlarged drawing in Fig. 3;
Fig. 5 is the work schematic diagram of one deck Venturi rod layer;
Fig. 6 is the work schematic diagram of two-layer Venturi rod layer.
The specific embodiment
Below, with reference to accompanying drawing, the utility model is more fully illustrated, shown in the drawings of exemplary embodiment of the present utility model.Yet the utility model can be presented as multiple multi-form, and should not be construed as the exemplary embodiment that is confined to narrate here.But, these embodiment are provided, thereby make the utility model comprehensively with complete, and scope of the present utility model is fully conveyed to those of ordinary skill in the art.
For ease of explanation, here can use such as " on ", the space relative terms such as D score " left side " " right side ", the relation for element shown in key diagram or feature with respect to another element or feature.It should be understood that except the orientation shown in figure, spatial terminology is intended to comprise the different azimuth of device in using or operating.For example, if the device in figure is squeezed, be stated as the element that is positioned at other elements or feature D score will be positioned at other elements or feature " on ".Therefore, exemplary term D score can comprise upper and lower orientation both.Device can otherwise be located (90-degree rotation or be positioned at other orientation), and the relative explanation in space used here can correspondingly be explained.
As shown in Figure 1 to Figure 3, the utility model venturi type demister, comprise higher level's demister 1, subordinate's demister 2, and be arranged on the venturi demisting unit 3 between two-stage demister, Venturi rod unit 3 comprises one deck Venturi rod layer 4 or two-layer upper and lower spaced Venturi rod layer 4, Venturi rod layer 4 comprises spaced several barred bodies 5 side by side, and between two adjacent barred bodies 5, the perforate 6 at interval forms the gas channel of venturi type structure.The gross area of perforate 6 is the 30%-40% of the top surface area of Venturi rod layer 4.Venturi rod layer 4 forms the low-voltage device that a kind of gas-liquid mixed distributes, and when two-layer, every layer of excellent interlayer has certain distance, and every layer of rod layer established different percent openings, and 4 pairs of air-flows of Venturi rod layer distribute and gas-liquid mass transfer has Special Contributions.
Higher level's demister 1, subordinate's demister 2 are the demister of wet type, impacting type, folded plate type.Venturi demisting unit 3 also comprises the flusher (not shown) of portion disposed thereon and bottom, and this flusher can adopt the hydroblasting structure of water under high pressure to carry out cleaned at regular intervals Venturi rod layer 4.
Between several barred bodies 5, by the support and connection of beam frame structure (not shown), become an integral body, form Venturi rod layer 4.The material of barred body 5 can adopt fiberglass, carbon steel, steel alloy or TP, and the heatproof degree of barred body 5 is less than 80 ℃.The cross section of barred body 5 is circular or square, when to adopt cross section be square barred body 5, when mounted, its two pairs of diagonal angles lay respectively at vertical direction and level is square for the barred body of square structure form, be that cross section is after square barred body 5 is installed, its end face pattern that assumes diamond in shape.
As shown in Figure 5, when one deck Venturi rod layer 4 is only set, air-flow passes through by the direction of arrow 7.As shown in Figure 6, when two-layer Venturi rod layer 4 is set, between two-layer Venturi rod layer 4, for shifting to install, the spacing between two-layer Venturi rod layer 4 is between the radius distance value and diameters of barred body 5.The perforate 6 arranging on levels Venturi rod layer 4 shifts to install for mutual correspondence, and air-flow passes through by the direction of arrow 8.
The utility model venturi type demister is by arranging after Venturi rod layer 4, the Venturi rod layer 4 that individual layer or dislocation are arranged forms numerous venturi, because venturi has reduced the flow area of flue gas in tower, thereby improved flue gas by time flow velocity.
The dirt of escaping when subordinate's demister 2 and tiny water droplet, while upwards flowing through venturi section, the strong turbulent flow that can form in the effect of Venturi rod layer 4, these dirt and tiny water droplet can agglomerates or are formed dense air-flow, so that the trapping of higher level's demister 1;
When the liquid with dirt and gypsum trapping when higher level's demister 1 falls, at Venturi rod layer 4 and upstream flue gas, form strong turbulent flow, the slurry that strong fragmentation is dripped drips, mass transfer, heating surface between liquid phase have greatly been increased, on the other hand, when flue gas passes through Venturi rod layer 4, the bubbling mass transport process with " liquid encirclement gas ", has improved mass-transfer efficiency.At venturi section trapping dirt and residual SO
2.
The utility model venturi type demister has following effect:
1) flue gas being uniformly distributed on tower section in strengthening tower, the normal operation of the two-stage demister that is conducive to be placed in upper and lower;
2) accelerate the relative velocity on liquid phase surface, accelerate trapping, the SO of dirt
2the agglomerate of the dissolving in liquid phase diffusion and fine liquid particles;
3) turbulent flow between liquid phase, the very big contact surface of ultrafine dust, has promoted the dedusting function of spray column greatly;
4) high velocity air can effectively be removed SO
3, dust and tiny water droplet.
In the utility model, owing to adopting the layout feature of Venturi rod layer 4, improved the uniformity of air-flow in two-layer demister.Chemical reaction and trapping effect stability.Venturi rod has the function of strengthening slurries and flue gas mass transfer, heat transfer, and there will not be fouling and wear phenomenon.
And owing to having increased Venturi rod layer, stronger to the adaptability of system.Venturi rod layer and the parts that split a upper and lower independent completion of two-stage demister formation.The strong adaptability (30%～120%BMCR) that boiler load is changed, even under low flue gas flow, Venturi rod layer also can guarantee to strengthen flue gas flow rate, forms turbulent flow, the effect of strengthening gas-liquid mass transfer and trapping, agglomerate.
Claims (9)
1. venturi type demister, it is characterized in that, comprise higher level's demister, subordinate's demister, and be arranged on the venturi demisting unit between two-stage demister, this Venturi rod unit comprises one deck Venturi rod layer or two-layer upper and lower spaced Venturi rod layer, Venturi rod layer comprises spaced several barred bodies side by side, and between two adjacent barred bodies, the perforate at interval forms the gas channel of venturi type structure.
2. venturi type demister as claimed in claim 1, is characterized in that, described higher level's demister, subordinate's demister are the demister of wet type, impacting type, folded plate type.
3. venturi type demister as claimed in claim 1, is characterized in that, described venturi demisting unit also comprises the flusher of portion disposed thereon and bottom.
4. venturi type demister as claimed in claim 1, is characterized in that, described in several, between barred body, by beam frame structure support and connection, becomes an integral body.
5. venturi type demister as claimed in claim 1, is characterized in that, the cross section of described barred body is circular or square, and when mounted, its two pairs of diagonal angles are positioned at vertical direction and level is square for the described barred body of square structure form.
6. venturi type demister as claimed in claim 1, is characterized in that, the 30%-40% of the top surface area that the gross area of described perforate is Venturi rod layer.
7. venturi type demister as claimed in claim 1, is characterized in that, between two-layer described Venturi rod layer, for shifting to install, the described perforate arranging on Venturi rod layer described in levels is that mutual correspondence shifts to install.
8. venturi type demister as claimed in claim 1, is characterized in that, between radius distance value and diameters that the spacing between two-layer described Venturi rod layer is described barred body.
9. venturi type demister as claimed in claim 1, is characterized in that, the material of described barred body is fiberglass, carbon steel, steel alloy or TP, and the heatproof degree of described barred body is less than 80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177782.1U CN203777883U (en) | 2014-04-14 | 2014-04-14 | Venturi type demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177782.1U CN203777883U (en) | 2014-04-14 | 2014-04-14 | Venturi type demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203777883U true CN203777883U (en) | 2014-08-20 |
Family
ID=51314112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420177782.1U Expired - Fee Related CN203777883U (en) | 2014-04-14 | 2014-04-14 | Venturi type demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203777883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894031A (en) * | 2014-04-14 | 2014-07-02 | 北京布鲁斯盖环保科技发展有限公司 | Venturi defogger |
-
2014
- 2014-04-14 CN CN201420177782.1U patent/CN203777883U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894031A (en) * | 2014-04-14 | 2014-07-02 | 北京布鲁斯盖环保科技发展有限公司 | Venturi defogger |
| CN103894031B (en) * | 2014-04-14 | 2016-08-17 | 北京布鲁斯盖环保科技发展有限公司 | Venturi type demister |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10143957B2 (en) | High-efficiency gradient hierarchy complex desulfurizing tower | |
| CN104368217B (en) | Combined cyclonic demisting and dust removal system and treatment process thereof | |
| CN103316553A (en) | Efficient wet-type variable flow fog-spraying sprinkling dust-removing purification device | |
| US5486341A (en) | Entrainment separator for high velocity gases | |
| CN205042255U (en) | Multistage cyclone gas cleaning device of binocular and be equipped with device's desulfurization absorption tower | |
| CN103894031A (en) | Venturi defogger | |
| CN105727669A (en) | Dust-removing and demisting device and application method thereof | |
| CN106693590A (en) | Fine particle polymerizer and high-efficiency dedusting defogging integrated system | |
| CN104645770A (en) | Rotational flow plate type dust-removing and mist-removing device and application method thereof | |
| CN204233970U (en) | The board-like airflow uniform distribution device of a kind of flue gas desulfurization demister | |
| HU221182B1 (en) | Improved entrainment separator for high velocity gases and reheating of scrubber gases | |
| CN106237825A (en) | Flow-disturbing catcher and a kind of wet process of FGD dedusting absorption tower | |
| CN204338009U (en) | Integrated fume purifying column | |
| CN205095604U (en) | Fine particle polymerizer, flue gas runner and high -efficient dust removal defogging integration system | |
| CN204637887U (en) | Multistage many cyclones demist dust arrester | |
| CN101306319A (en) | Direct discharging flue gas treatment method | |
| CN204582864U (en) | A kind of self-adapting type ball float demister | |
| CN203777883U (en) | Venturi type demister | |
| CN203525501U (en) | Baffle plate type demister | |
| CN202590581U (en) | Defogger adapted to changes in gas flow | |
| US4028077A (en) | Mist eliminator | |
| CN104874252B (en) | Multistage multi-cyclone demisting and dedusting device | |
| CN109876551A (en) | GH type Eddy Distribution formula turbulent flow high-effective dust-removing demister | |
| CN205495331U (en) | Desulfurization dust removal absorption tower with porous current equalizer | |
| CN108686492B (en) | Flue gas dust removal desulfurization tower and dust removal desulfurization method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING DONGFANG TIANLAN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING BLUE SKY ENVIRONMENT PROTECTION SCIENCE AND TECHNOLOGY DEVELOPMENT CO. Effective date: 20150529 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150529 Address after: 100071, room 1425, 14 floor, No. 56 West Fourth Ring Road, Beijing, Fengtai District Patentee after: Beijing Oriental blue sky Polytron Technologies Inc. Address before: 100071 Beijing city Fengtai District West Fourth Ring Road No. 56 on the open Feng Technology Incubator Center (on the 14 floor of the building room 1425) Patentee before: BEIJING BLUESKY ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 |