CN204911023U - Gaseous liquid knockout of multistage whirl - Google Patents
Gaseous liquid knockout of multistage whirl Download PDFInfo
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- CN204911023U CN204911023U CN201520394057.4U CN201520394057U CN204911023U CN 204911023 U CN204911023 U CN 204911023U CN 201520394057 U CN201520394057 U CN 201520394057U CN 204911023 U CN204911023 U CN 204911023U
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Abstract
The utility model provides a gaseous liquid knockout of multistage whirl, belongs to gas -liquid separation technical field, is used for the wet flue gas desulfurization device to discharge the flue gas dehydration very much and removes liquid, including multistage swirler, connecting cylinder, aiutage. Multistage swirler comprises the swirler of establishing ties about multistage, and every grade of swirler is collectd to distinguish by barrel, whirl part, liquid and is constituteed, and the whirl part sets up at swirler flue gas barrels at different levels entry center, and the liquid that gets off swirler coalescences at different levels in centrifugal coverage area is in time drawn forth, and gaseous entering next stage swirler gets into the aiutage at last and discharges.
Description
Technical field
The invention belongs to gas-liquid separation technical field, particularly relate to a kind of Multi-stage spiral liquid removing method and liquid knockout.
Background technology
What flue gas desulfurization mostly adopted is wet processing, and namely so-called wet processing washs flue gas with the absorbent being mixed with slurries, by the SO in flue gas
2absorb in slurries, react with absorbent, its core apparatus is exactly absorption tower, reaction major part due to absorption tower all adopts fountain to wash, so containing a large amount of droplets in the flue gas processed, if these droplets of leaving take absorption tower out of, droplet will be discharged from chimney with flue gas, and fall around chimney, formed " light rain ", thus contaminated environment.From the angle of energy-conservation, a large amount of slurries are taken out of, and the operation for system is also a kind of loss, so flue gas generally will be added with liquid knockout after passing through washing.Be actually and the water droplet in the flue gas of washing is separated, allow water droplet get back in tower.Liquid knockout is the visual plant of flue gas desulphurization system, and the dehydration mechanism of liquid knockout is mainly divided into gravitational settling, collision separation, centrifugation and isolated by filtration.Now widely used liquid knockout mainly contains electric liquid knockout, silk screen liquid knockout, fiber liquid knockout, spiral board liquid knockout, folded plate type liquid knockout.
Electricity liquid knockout utilizes HVDC electric forming electric field, makes the flue gas that passes through produce ionization, causes electric charge on grit in flue gas and droplet band, move to precipitation level under the ordering about of electric field force, and gas cleaning is clean.Electricity liquid knockout has the advantage that efficiency is high, resistance is little and operating cost is low, but its equipment is complicated, construction requirement is high, the construction period is long, invests the highest.
Silk screen liquid knockout mainly by inertial collision except liquid, have structure simple, take up an area less, reduced investment, separative efficiency are high, resistance is little, quality is light and install the operating maintenance feature such as conveniently.But silk screen liquid knockout easily blocks when processing the flue gas containing dust granule by the gauze pad of weaving filaments, therefore this equipment is also not suitable for processing the large flue gas of dustiness.
Fiber liquid knockout is made up of the single or multiple liquid element that removes; And each element is a certain amount of fibrous by uniform filling between internal, external network cylinder, passed through by inner side containing fog body, droplet detention is on fiber, after drop increases, along the air-flow of blowing under gravity, discharging tube place can be collected to and flow out, thus reach the object of gas-liquid separation.Fiber liquid knockout except high, the structure of liquid rate is simple, handling ease, reduced investment, easy to operate, but equipment is comparatively large, pressure drop is larger.
Baffle plate type liquid knockout utilizes in the flue of flue gas by a baffling, and due to the effect of inertia of droplet, droplet and deflection plate collide and be attached to deflection plate on the surface, reach except liquid object.For this mechanical type except liquid, the trapping of drop is subject to the physical property of drop self as the impact of viscosity, speed, is also subject to the structural parameters of flap as the impact of flap angle, flap spacing simultaneously, under various factors, usually causes except liquid efficiency reduces.
Spiral board liquid knockout utilizes inner fixed blade to make flow rotation, thus be separated by water droplet under the influence of centrifugal force.Whirlwind board separator pressure drop is little, and except liquid is effective, and structure is simple, handling ease, and the waste gas be especially applicable to solid or band salinity in those smog removes liquid.
The pluses and minuses of relatively above several liquid knockout, we can find out: spiral board liquid knockout structure is simple, droop loss is little, cost is low, occupation of land is few, is very suitable for flue gas desulphurization system.The principle of spiral board liquid knockout is: gas-liquid mixture produces rotary motion through during swirl vane at a high speed, when liquid particles, when the active force that eddy flow field is subject to is greater than Stokes resistance, centrifugal sedimentation occurs, move to surrounding, fall on barrel, due to wall effect and Action of Gravity Field, separated liquid runs down barrel influent shunt cylinder reaches the object of gas-liquid separation.Affect spiral board liquid knockout except the principal element of liquid efficiency be the sinking speed of droplet, disengaging time and the time of staying.Only have the disengaging time when droplet to be less than gas just can reach separation object in the eddy flow field time of staying, the increasing length adding large cylinder adds the time of staying of fluid at eddy flow field, improve the efficiency except liquid, but along with the increase of axial distance, hoop speed reduces gradually, the detachment dynamic that drop is subject to is more and more less, and eddy flow effect just weakens; Secondly because liquid still contacts with gas, the gas of flowing can will gather the liquid crushing of wall region at any time, makes liquid return in gas; In addition due to the mobility of liquid, after liquid is agglomerated into larger volume along wall, Action of Gravity Field also can break surface tension naturally, even if form granule to return in gas. so prior art employs eddy flow scheme, because liquid cannot well be drawn at any time, cause the liquid fragmentation again under the effect of air-flow separated, become droplet, be again involved in flue gas.
We improve spiral board liquid knockout for this reason, become a kind of novel gas-liquid separator, have both kept the centrifugal effect in cylinder, the liquid separated can be drawn in time again, make it both have good in liquid effect, too much droop loss can be avoided again, and structure is simple, handling ease.
Goal of the invention:
The object of the present invention is to provide a kind of Multi-stage spiral gas liquid removing method and demister, in centrifugal effective district, the coalescent liquid got off can be got rid of in time, soma of not being bullied is disturbed, cannot enter in gas again, it is made both to have had good in liquid effect, can avoid too much droop loss again, and structure is simple, handling ease.
Summary of the invention
The invention provides a kind of Multi-stage spiral gas demister, the liquid using vertically install many groups, carry in Multi-stage spiral liquid knockout removing gas, the gas of carrying of liquids carries out gas-liquid separation through coaxial series multistage cyclone of installing, the isolated liquid of cyclone at different levels is pooled to independently fluid zone after cyclone outlet at the corresponding levels, this fluid zone and gas barrier, and get rid of from the discharging tube being arranged on this isolated area, gas enters next stage cyclone successively and proceeds gas-liquid separation, and liquid is drawn successively; Qualified gas is arranged outward through aiutage.
First order cyclone of the present invention is located at topmost, other are at different levels is arranged successively straight down, flue gas enters first order cyclone downwards in the top, after exclusive segment separating liquid, enter other downwards at different levels, other cyclones at different levels from top to bottom diameter reduce successively, and the guiding gutter of liquid pooling zone and discharging tube are located at outside next stage cyclone inlet, flue gas enters aiutage through interface channel, turns to 180 ° of backward upper eliminatings.
First order cyclone of the present invention can be located at foot, other are at different levels is arranged successively straight up, flue gas upwards enters first order cyclone in bottom, after exclusive segment separating liquid, upwards enter other at different levels, other cyclones at different levels from bottom to top diameter increase successively, and the guiding gutter of liquid pooling zone and discharging tube are located at outside previous stage cyclone outlet, and flue gas enters aiutage through interface channel and upwards gets rid of.
A kind of Multi-stage spiral liquid knockout of the present invention comprises Multi-stage spiral device, connecting cylinder and aiutage.Multi-stage spiral device is arranged in around aiutage, organizes arrangement more, adopts parallel mode to carry out gas-liquid separation.Be connected with connecting cylinder below Multi-stage spiral device, connecting cylinder is connected with aiutage.Smoke inlet is arranged on the entrance of Multi-stage spiral device, exports as flue gas exhaust cylinder.
Described Multi-stage spiral device, is made up of some grades of cyclones, the upper and lower arranged in series of every one-level cyclone, and will have certain insertion height h and annular space thickness S when connecting, and inserts and highly has significant impact to except liquid efficiency.After gas-liquid mixture enters first order cyclone inlet, under centrifugal force and Action of Gravity Field, separate a part of liquid, then gas enters next stage cyclone, carries out next stage gas-liquid separation.Through Multi-stage spiral except liquid, improve except liquid efficiency.
Described cyclone is made up of cylindrical shell, eddy flow parts, liquid collection region.Gas-liquid mixture enters by above cyclone cylindrical shell, then flow direction is changed by eddy flow parts, the little water droplet carried in gas gets rid of to wall under the effect of centrifugal and gravity, coalescent and to dirty along wall, enter liquid pooling zone, collected by the guiding gutter of liquid pooling zone, discharged by discharging tube, gas is discharged by below cyclone cylindrical shell again.
Described cylindrical shell, cylindrical shell height L has certain scope, and fluid separation applications should be guaranteed to get off, and can ensure that again gas is in centrifugal effective district, prevents the coalescent liquid got off again broken under the effect of air-flow, causes reentrainment.
Described eddy flow parts, comprise swirl vane and blind plate district, blind plate district is positioned in the middle of swirl vane, is connected with each swirl vane.
Described swirl vane, have certain blade quantity N and enough width W to ensure that adjacent blades has certain lap, should improve separative efficiency, prevent the too much increase of pressure drop again.
Described blind plate district, is positioned in the middle of swirl vane, plays a part to connect blade and support blade, also plays liquid collecting and dispense liquid simultaneously.
Described liquid pooling zone, is positioned at the end of every one-level cyclone, is made up of liquid guide flow groove and discharging tube, for collecting, discharging the water droplet separated.
Described guiding gutter, is positioned at the end of every one-level cyclone cylindrical shell, is connected with discharging tube, and the range of tilt angles of guiding gutter is 0 ~ α.
Described connecting cylinder, inserting blast pipe has certain length H, has the effect of retaining ring and reduction turbulent flow, thus reduces the pressure loss of whole device.
Described aiutage, is positioned at equipment center, arranges a discharging tube below aiutage, for discharging the liquid fallen in aiutage, is flue gas discharge opening, for discharging the dry flue gas after gas-liquid separation above aiutage.
Multi-stage spiral liquid knockout of the present utility model compared with prior art, has following technical characterstic:
(1) adopt Multi-stage spiral except liquid, in time the coalescent liquid got off is drawn, decrease the reentrainment of gas.
(2) keep centrifugal effect in cylinder, improve except liquid efficiency.
(3) structure is simple, handling ease.
(4) pressure drop is little.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a kind of top view of the present utility model.
Fig. 3 is a kind of structural representation of eddy flow parts in Fig. 1.
Fig. 4 is the structural representation of Multi-stage spiral device coupling part.
In figure: 1, Multi-stage spiral device, 2, connecting cylinder, 3, aiutage, 4, cyclone, 5, eddy flow parts, 6, liquid pooling zone, 7, cylindrical shell, 8, swirl vane, 9, blind plate district, 10, guiding gutter, 11, discharging tube, 31, the gas entered, 32, the gas of discharging, 33 liquid, α, the angle that guiding gutter tilts, D, (first order is D1 to single-stage barrel diameter, the second level is D2, analogize with this), L, (first order is L1 to single-stage barrel lenght, the second level is L2, analogize with this), H, insert height (liquid pooling zone height), S, annular space thickness, d, aiutage diameter, in figure, arrow represents the flow direction of gas and liquid respectively.
Detailed description of the invention
In order to make those skilled in the art better understand technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of Multi-stage spiral liquid knockout, it comprises Multi-stage spiral device 1, connecting cylinder 2 and aiutage 3.Multi-stage spiral device 1 is composed in series by several cyclones 4.Cyclone 4 comprises eddy flow parts 5, liquid pooling zone 6 and cylindrical shell 7.
As shown in Figure 2, many group Multi-stage spiral devices 1 are arranged in around aiutage, multiple arrangement, and Multi-stage spiral device 1 is connected with connecting cylinder 2, and connecting cylinder 2 is connected with aiutage 3, adopts parallel mode to carry out gas-liquid separation.
As shown in Figure 3, eddy flow parts 5 are made up of swirl vane 8 and blind plate district 9.
As shown in Figure 4, liquid pooling zone 6 is made up of guiding gutter 10 and discharging tube 11.
As shown in Figure 4, when upper level cyclone is connected with next stage cyclone, there are certain insertion height H and annular space thickness S.
Gas-liquid mixture enters at Multi-stage spiral device 1 entrance, through eddy flow parts 5, rotary motion is produced by swirl vane 8, under centrifugal force and Action of Gravity Field, the droplet carried in gas moves to surrounding, fall on barrel, along barrel influent pooling zone 6, collected by guiding gutter 10 and separate a part of liquid and discharge through discharging tube 11, gas enters next stage cyclone and carries out next stage gas-liquid separation, through Multi-stage spiral except the gas after liquid enters connecting cylinder 2, discharge from flue gas exhaust cylinder 3, the liquid fallen in aiutage is discharged through discharging tube 11.
Embodiment
Dewater for wet flue gas desulfurizer flue gas.Exhaust gas volumn 200,000 standard cube m/h, the moisture 97099kg/h of flue gas, arranges six groups of multistage cyclonic fluid separators of same size, often organizing separator is three grades, first order diameter of the housing D1=800mm, height L1=1440mm, D2=680mm, L2=1224mm, D3=560mm, L3=1008mm, d=2750mm, H=420mm, α=0 °, S=60mm, every grade of spinning disk 11 is 4, dehydrator overall presure drop 1085Pa, discharge flue gas is moisture almost nil.
Claims (5)
1. a Multi-stage spiral liquid knockout, comprise Multi-stage spiral device, multistage liquid pooling zone, gas connecting cylinder and aiutage, cyclone at different levels is by housing, eddy flow parts, liquid pooling zone, gas access and outlet composition, cyclone at different levels is vertically arranged up and down, upper level cyclone gas vent is different with next stage cyclone gas access diameter, swirl vane is provided with in cyclone at different levels, airtight between cyclone outlet at different levels and next stage cyclone inlet, upper level cyclone housing outlets is different with next stage cyclone housing entrance height, independently enclosed liquid pooling zone is formed between this difference in height and diameter difference, this pooling zone arranges liquid guide flow groove and discharging tube, independently liquid pooling zone is set.
2. liquid knockout as claimed in claim 1, it is characterized in that, first order cyclone is located at topmost, and other cyclones at different levels are arranged successively straight down, diameter reduces successively from top to bottom, and the guiding gutter of liquid pooling zone and discharging tube are located at outside next stage cyclone inlet.
3. liquid knockout as claimed in claim 1, it is characterized in that, first order cyclone is located at foot, and other cyclones at different levels are arranged successively straight up, diameter increases successively from bottom to top, and the guiding gutter of liquid pooling zone and discharging tube are located at outside previous stage cyclone outlet.
4. liquid knockout as described in claim 1 or 2 or 3, is characterized in that, be set up in parallel many group Multi-stage spiral liquid knockouts, share an aiutage, aiutage is arranged in the center of each group of Multi-stage spiral liquid knockout.
5. as claimed in claim 1, it is characterized in that, cyclone inwall arranges liquid coalescence material, and this material is the hydrophilic material increasing surface area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394057.4U CN204911023U (en) | 2015-06-10 | 2015-06-10 | Gaseous liquid knockout of multistage whirl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394057.4U CN204911023U (en) | 2015-06-10 | 2015-06-10 | Gaseous liquid knockout of multistage whirl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204911023U true CN204911023U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520394057.4U Withdrawn - After Issue CN204911023U (en) | 2015-06-10 | 2015-06-10 | Gaseous liquid knockout of multistage whirl |
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| Country | Link |
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| CN (1) | CN204911023U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104958959A (en) * | 2015-06-10 | 2015-10-07 | 青岛京润石化工程有限公司 | Multistage cyclone gas liquid removal method and liquid removal apparatus |
| CN105297128A (en) * | 2015-11-05 | 2016-02-03 | 佛山市南海区鑫恒力五金机械厂 | Horizontal electrolytic decoating line production device |
| CN106377950A (en) * | 2016-12-06 | 2017-02-08 | 无锡优耐特净化装备有限公司 | Gas-liquid separator |
-
2015
- 2015-06-10 CN CN201520394057.4U patent/CN204911023U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104958959A (en) * | 2015-06-10 | 2015-10-07 | 青岛京润石化工程有限公司 | Multistage cyclone gas liquid removal method and liquid removal apparatus |
| CN105297128A (en) * | 2015-11-05 | 2016-02-03 | 佛山市南海区鑫恒力五金机械厂 | Horizontal electrolytic decoating line production device |
| CN106377950A (en) * | 2016-12-06 | 2017-02-08 | 无锡优耐特净化装备有限公司 | Gas-liquid separator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20170308 |