CN206081915U - Demister - Google Patents
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- CN206081915U CN206081915U CN201621043983.8U CN201621043983U CN206081915U CN 206081915 U CN206081915 U CN 206081915U CN 201621043983 U CN201621043983 U CN 201621043983U CN 206081915 U CN206081915 U CN 206081915U
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- rectification
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Abstract
The utility model discloses a demister. This demister includes the defogging subassembly that a plurality of parallels, and every defogging subassembly all includes riser and urceolus, and the urceolus setting is in the outside of riser, and preferred and riser are on same axis, the riser is fixed on the tower tray, and the top of riser sets up the closing cap board, evenly set up a plurality of rectification passageways on the circumference of riser, rectification passageway along the tangential direction level embedding that rises outer wall of gas pipe, the lateral wall I that the rectification passageway is close to on one side of the urceolus is tangent with the riser pipe wall, and another lateral wall II is crossing with the riser pipe wall, and each rectification passageway direction of rotation is the same, rectification passageway top flushes with the closing cap board, and the bottom is crossing with the riser pipe wall. The utility model discloses a liquid drop and gaseous separation are realized in rectification, acceleration and the shaving effect of the in -process that flows to the fluid, demister simple structure, and simple to operate is difficult for the scale deposit, can effectively realize gas -liquid separation, reduces entrainment.
Description
Technical field
This utility model is related to a kind of gas-liquid separation equipment, especially a kind of demister.
Background technology
Substantial amounts of SO is produced in the production process of the industries such as electric power, metallurgy, petrochemical industry2With the harmful substance such as dust, bring
Serious acid rain endangers and haze weather, is the atmosphere pollution of the current priority control of China.At present, field of environment protection is generally adopted
Wet desulfurizing process is made a return journey except harmful substances such as the sulfur dioxide in flue gas, i.e., spray alkali liquor so as to absorbing or adsorbing this to flue gas
A little harmful substances.However, in process of wet desulphurization, being about 10～60 with a large amount of particle diameters in the flue gas after the desulfurization of absorption tower micro-
The fine drop of rice, dissolved with sulphuric acid, sulfate, SO in these drops2Deng, not only atmospheric environment can be polluted, while
More serious corrosion and fouling is caused to follow-up equipment.When therefore, using wet desulfurizing process, cleaned gas is leaving suction
Receive and have to demisting before tower, and demister is depended on the step for demisting completing.
Demister is generally located on absorption tower top, when the gas containing mist passes through demister with certain speed, meeting
Bump against with demister internal structure, and depend in its surface.Mist on demister internal structure surface, through spreading and weighing
The effect of power can progressively be assembled, and after weight reaches certain level, will separate from demister internal structure, so as to reality
Existing gas-liquid separation.When demister because of fouling in running when causing resistance drop to increase to predetermined value, it is necessary to start anti-
Cleaning procedure is rinsed to demister, typically, is both needed to arrange flooding nozzle in demister inlet end and exhaust end, now may
Cause serious entrainment of the gas phase to liquid phase, cause gas phase band liquid.
Conventional demister has mesh mist eliminator, collapser demister, rotational flow plate defroster etc..Although mesh mist eliminator energy
General mist is separated, but requires that mist cleaning, air-flow velocity are less, and resistance drop is big, usage cycles are short, and equipment investment is big.
At present demister typically all adopts horizontally disposed, and demister gas flow direction is vertical with silk screen, when gas speed is relatively low, the mist of entrainment
Foam inertia is little, drifts in gas, it is impossible to silk screen making contact and be removed, and due to by separation drop and gas phase in inverse
Stream flow direction, gas is also easy to produce reentrainment to drop, so that gas-liquid separation efficiency is reduced, and mesh mist eliminator also has appearance
Easily blocking, the problems such as pressure drop is big.It is provided with that direction is different, the folding that shape is different inside blade type, herringbone demister
Stream plate, to form little runner, increases and removes fog effect, and structure is more complicated, and separating effect is bad.Rotational flow plate defroster is by separating liquid
Drop is identical with gas flow, is also easy to produce reentrainment, reduces demisting efficiency, and pressure drop is big, and energy consumption is higher.
The demister element that CN200410014713.X is introduced is made up of deflection plate and flue gas flow field adjustment block, and deflection plate is fixed
In flue gas flow field adjustment block, the density and shape of deflection plate change according to the flow area change of flow field parameter everywhere, from
And make the flow area of air-flow in absorption tower be evenly distributed, but still do not break away from drop descent, gas-liquid counter current is existing
As being also easy to produce reentrainment.
The demister that CN200920128824.1 is introduced is made up of cooler, thick demister and smart demister etc., thick demisting
Device is corrugated sheet or demisting plate, and smart demister is steel wire, and it is inverse with airflow direction that the demister changes traditional demister drop
The shortcoming of stream flowing, improves demisting efficiency.But the demister structure is more complicated, make difficult, and as a result of silk screen
Structure, demister pressure drop is larger, is also easier blocking.
A kind of straight tube shape deflector type demister that CN203724892U is introduced is made up of several demisting components, each demisting
Component includes riser and outer tube, and the circumference of riser is provided with some seams, sets on the riser circumference near each bar seam
Groove and the tangential flow guiding wing are equipped with, the tangential flow guiding wing plays guide functions, makes gas flow change.Flowed over by fluid
Multiple baffling in journey realizes that drop is separated with gas, can effectively remove the less drop of particle diameter, and demisting efficiency is higher.But
Gas is flowed through after the tangential flow guiding wing, and gas direction still compares diverging, is not enough concentrated, and gas velocity is reduced, then with outer tube inner wall
Impact force is less during collision, affects to remove fog effect.And the demister relies primarily on baffling and changes gas direction, so gas with
Solid wall surface collides so as to realize gas-liquid separation, for larger drop except fog effect is preferable, but for droplet effect not
Substantially, and the demister structure is more complicated, the easy fouling in space between riser and the tangential flow guiding wing.
US7618472B2 provides a kind of vane-type demister, and the demister is by structures such as corrugated sheet, flat board and louver boards
Into, and form many cavitys or runner.Gas-liquid mixture is entered after demister, and fluid course shifts so that fluid is flowed to
Changed for several times, and velocity variations is very fast, and liquid phase is easy to from gas phase separate.The technology liquid phase is by gas phase point
During, it is possible to achieve gas liquid cross-flow, therefore reentrainment effect of the gas phase to drop is substantially reduced, but the technical pattern
Extremely complex, difficulty of processing is also than larger, and corresponding processing and fabricating expense is higher.
Utility model content
For the deficiencies in the prior art, this utility model provides a kind of demister, by fluid in flow process
Repeatedly baffling, rectified action and shaving effect, realize that drop is separated with gas.Demister simple structure of the present utility model,
Pressure drop is little, less scaling, easy for installation, reduces entrainment, can effectively realize gas-liquid separation.
Demister of the present utility model include several demisting components arranged side by side, each demisting component include riser and
Outer tube, outer tube is arranged on the outside of riser, preferably with riser on the same axis；Riser is fixed on tower tray, rises gas
The top of pipe arranges capping plate；Some rectification passages are uniformly arranged on the circumference of riser, rectification passage is along riser outer wall
Tangential direction level be embedded in, the side wall I near outer tube side is tangent with riser tube wall for rectification passage, opposite side wall II with liter gas
Tube wall intersects, and each rectification passage direction of rotation is identical；Rectification channel roof is flushed with capping plate, bottom and riser tube wall phase
Hand over.
In demister of the present utility model, described rectification passage typically arranges 1 ~ 12, preferred 4-8.Rectification passage
Wall thickness it is preferably identical with the wall thickness of riser.
In demister of the present utility model, length l of rectification passage is the length of side wall II, and width w is rectification passage two
Maximum horizontal range between the wall of side, height h is the maximum normal distance between rectification channel roof and bottom；Wherein length l is width
2 ~ 5 times, preferably 3 ~ 4 times of degree w；The cross sectional shape of rectification passage is in rectangle, ellipse, circle, trapezoidal or semicircle etc.
One or more combination, the one or more combination in preferably rectangular, oval or circle.The size of rectification passage according to
Actual operating mode or design requirement, are determined by those skilled in the art, the height h of the such as rectification passage is generally 20～
600mm, preferably 100～300mm；The width w of rectification passage is generally 10～200mm, preferably 20～100mm.Rectification is led to
The total sectional area in road is 0.2 ~ 0.9 times of riser cross-sectional area, preferably the 0.3 ~ 0.6 of riser cross-sectional area times.
In demister of the present utility model, the side wall II ends of described rectification passage can flush with riser inwall or
Un-obstructed draft tube interior certain distance m is extend into, m is 0.1 ~ 0.9 times, preferably 0.3 ~ 0.6 times of length l.When the side of rectification passage
When wall II ends flush with riser inwall, rectification channel bottom end also flushes with riser inwall；When the side of rectification passage
When wall II extend into un-obstructed draft tube interior certain distance m, rectification channel bottom end flushes with side wall end.
In demister of the present utility model, rectification channel bottom has certain distance A apart from tower tray, apart from A be 20～
200mm, preferably 40～80mm.
In demister of the present utility model, riser lower end is concordant with tower tray or less than the segment distance of tower tray one, and the two is closed
Connection；The diameter of riser and the percent opening of tower tray can be according to actual operating modes or design requirement, by those skilled in the art
Determined.
In demister of the present utility model, described rectification passage, capping plate and riser can weld together or whole
It is body formed.
In demister of the present utility model, described outer tube is preferably cylinder, and outer barrel diameter D is draft tube diameter d
1.5-6 times, preferably 2-3 times.The upper edge of outer tube be higher by riser on along certain distance P, be rectification channel height h apart from P
1～8 times, preferably 2～5 times.The lower edge of outer tube has certain distance B apart from tower tray, and less than the lower edge of rectification passage, outer tube
Lower edge is 5～100mm, preferably 20～50mm apart from B away from tower tray.The overall height H of outer tube for rectification channel height 2.5～
10 times, preferably 3～5 times.The shape of outer tube can also be one or more groups in cone cylinder, inversed conical drum or reducing cylinder etc.
Close.
In demister of the present utility model, the inner surface setting groove and/or projection of described outer tube.Raised or groove with
The diameter parallel of outer tube, or can form an angle with axis.Described groove or the section of projection can also for rectangle, three
The suitable shape such as angular or circular.
In demister of the present utility model, the inner surface of described outer tube is preferably provided with cross sectional shape as shown in Figure 4
Groove, the section of the groove is made up of a circular arc and straight line section；Wherein circular arc divides with the intersection point of outer tube inner surface circumference
The tangent line of circular arc and circumference is not done, the angle between tangent line is α, α is 5 ° ~ 70 °, preferably 10 ° ~ 40 °；Circular arc is handed over straightway
The tangent line of circular arc and the angle of straightway that point place is done is β, and β is 30 ° ~ 110 °, preferably 45 ° ~ 90 °.Depth Z of groove,
Beeline i.e. on circular arc and straightway intersection point to outer tube inner surface circumference is 0.1 ~ 0.7 times of outer tube wall thickness, preferably 0.3
~ 0.5 times；Arc length between the intersection point of the intersection point and straightway and outer tube inner surface circumference of circular arc and outer tube inner surface circumference is outer tube
The 1/80 ~ 1/6 of inner surface circumference.
In demister of the present utility model, the lower ending opening of described outer tube can also arrange toothing or waveform knot
Structure, so as to advantageously in the liquid isolated from the inwall of outer tube into continuous stream drippage.
The junction of each component of demister of the present utility model ensures sealing, does not produce gas leak phenomenon.
Demister of the present utility model, during work, the gas of entrained drip enters riser, gas phase from tower tray lower space
Entrainment liquid phase rises, and runs into gas phase flow direction after capping plate and changes, i.e., be changed to level or level of approximation by ascent direction
Direction, and part droplet is collided due to effect of inertia and capping plate, and be attached on capping plate, the drop of attachment is gradually
Become big, when the gravity that drop arrives greatly its own generation exceedes the climbing power of gas and when making a concerted effort of surface tension of liquid, drop is just
Separated from capping plate surface, completed first time gas-liquid separation；The gas of entrained drip is along level or level of approximation
Direction enters rectification passage, and because rectification passage has certain length, and rectification passage total sectional area is less than riser cross section
Product, the gas of the more scattered entrained drip of script velocity attitude, after into rectification passage, velocity attitude is changed to along rectification
The direction of passage, velocity attitude comparison rule and concentration, and because circulation area reduces, the gas for making entrained drip enters rectification
Speed increases after passage.When the velocity attitude of the gas of entrained drip changes, partial drop collides with rectification vias inner walls,
And be attached in rectification vias inner walls, and then constantly flowed through the gas blow-out rectification passage of rectification passage and fallen, complete
Secondary gas-liquid separation.Meanwhile, in rectification passage, because the gas velocity direction of entrained drip changes, part droplet is used
Property power effect is lower that mutually collision occurs, droplet aggregation becomes big drop, and the gas of entrained drip flows through rectification passage speed per hour
Degree increases, and exacerbates the motion of drop, improves the probability that droplet is mutually collided, and making droplet be easier aggregation becomes big liquid
Drop, and rectification passage is flowed out with larger speed with gas.From rectification passage flow out entrained drip gas have compared with
Big speed, velocity attitude compares concentration, and the drop carried secretly continues to be collided with outer tube inner wall than larger, changes again
The gas of the flow direction of gas, i.e. entrained drip is by the circumferencial direction stream being changed to along rectification channel direction along outer tube inner wall
It is dynamic.Because the gas velocity of entrained drip is larger, and flow up along the rotation of reeded outer tube inner wall is opened up, therefore can produce
The obvious shaving effect of life.Described shaving effect, the high-speed gas for referring to entrained drip rotate upwards along outer tube inner wall
During flowing, drop is constantly thrown toward outer in the presence of inertia force, and arc section of the drop into groove and in groove is moved,
Because angle α is 5 ° ~ 70 °, does can the arc surface that drop continues on groove and smoothly move, contact aggregation between drop becomes
Greatly, until running into that straightway is hindered, the drop that aggregation becomes big clashes into strongly with straightway wall, and is attached to outer tube inner wall
On the straightway of groove, drop continues to assemble and become big, and then goes downstream along outer tube inner wall；And gas then continues to keep at a high speed
Flow up along outer tube inner wall rotation, gas-liquid separation is realized for the third time, and reduce entrainment.By above-mentioned rectification,
Accelerate and shaving effect, make fluid realize that drop is separated with gas in flow process.
Application of the demister of the present utility model in the absorption tower using wet desulfurizing process, generally enters riser
Gas speed is 3-20m/s, and the gas speed of rectification channel outlet is 10-40m/s.
Compared with prior art, demister of the present utility model has advantages below：
1st, rectification passage has certain length, the gas of the more scattered entrained drip of script velocity attitude, into whole
After circulation road, velocity attitude is changed to the direction along rectification passage, velocity attitude comparison rule and concentration；And rectification passage always cuts
Area is less than riser cross-sectional area, and because circulation area reduces, the gas for making entrained drip enters speed increasing after rectification passage
Plus.The section of cylinder inner surface groove is made up of a circular arc and straight line section, and the high-speed gas of entrained drip are along outer tube
When wall rotation is flowed up, drop is constantly thrown toward outer in the presence of inertia force, and drop enters groove and along groove
Arc section is moved, and because angle α is 5 ° ~ 70 °, the arc surface that drop continues on groove can be made to do smooth motion, until
Run into straightway tailing edge outer tube inner wall hindered to go downstream, and exist without dead band.
2nd, the effect of demisting can be effectively achieved, the less drop of particle diameter effectively carried secretly in removing gas, demisting effect
Rate is high, reduces the harm to environment, serves the effect of environmental protection.
3rd, gas flow uniform, flow resistance is little, and resistance is reduced.
4th, simple structure, it is easy to make, it is not easily blocked and fouling, without the need for backwash.
5th, water-saving result is good, and the moisture removed from the gas of entrained drip can reduce water consumption with recycling.
Description of the drawings
Fig. 1 is demister structural representation of the present utility model.
Fig. 2 is the schematic cross-section of the demister that rectification passage is flushed with riser inwall.
Fig. 3 is the schematic cross-section of the demister that rectification passage stretches into un-obstructed draft tube interior.
Fig. 4 is the groove schematic diagram that section is circular arc and straightway composition.
Respectively it is labeled as in figure：1- tower trays；2- riseies；3- rectification passages；4- outer tube；5- covers plate；6- grooves.
Specific embodiment
Demister of the present utility model is described in further detail with reference to the accompanying drawings and examples.
Demister of the present utility model includes several demisting components arranged side by side, and each demisting component includes riser 2
With outer tube 4, outer tube 4 is arranged on the outside of riser 2, preferably with riser 2 on the same axis；Riser 2 is fixed on tower tray 1
On, the top of riser 2 arranges capping plate 5；Some rectification passages 3, the edge of rectification passage 3 are uniformly arranged on the circumference of riser 2
The tangential direction level of the outer wall of riser 2 is embedded in, and the side wall I near the side of outer tube 4 is tangent with the tube wall of riser 2 for rectification passage 3,
Opposite side wall II intersects with the tube wall of riser 2, and each direction of rotation of rectification passage 3 is identical；The top of rectification passage 3 is neat with capping plate 5
Flat, bottom is intersected with the tube wall of riser 2.
In demister of the present utility model, described rectification passage 3 typically arranges 1 ~ 12, preferred 4-8.Rectification passage
3 wall thickness is preferably identical with the wall thickness of riser 2.
In demister of the present utility model, length l of rectification passage 3 is the length of side wall II, and width w is rectification passage 3
Maximum horizontal range between two side, height h is the maximum normal distance between the top of rectification passage 3 and bottom；Wherein length l is
2 ~ 5 times of width w, preferably 3 ~ 4 times；The cross sectional shape of rectification passage 3 is rectangle, ellipse, circle, trapezoidal or semicircle etc.
In one or more combination, the one or more combination in preferably rectangular, oval or circle.The size of rectification passage 3
According to actual operating mode or design requirement, determined by those skilled in the art, as the height h of the rectification passage 3
For 20～600mm, preferably 100～300mm；The width w of rectification passage 3 is generally 10～200mm, preferably 20～100mm.
The total sectional area of rectification passage 3 is 0.2 ~ 0.9 times of the cross-sectional area of riser 2, preferably the 0.3 of the cross-sectional area of riser 2 ~
0.6 times.
In demister of the present utility model, the side wall II ends of described rectification passage 3 can flush with the inwall of riser 2
（Such as Fig. 2）Or it extend into the inside certain distance m of riser 2（Such as Fig. 3）, m is 0.1 ~ 0.9 times of length l, preferably 0.3 ~ 0.6
Times.When the side wall II ends of rectification passage 3 flush with the inwall of riser 2, the bottom end of rectification passage 3 also with riser 2 in
Wall is flushed（Such as Fig. 2）；When the side wall II of rectification passage 3 extend into 2 inside certain distance m of riser, the bottom of rectification passage 3 end
End flushes with side wall end（Such as Fig. 3）.
In demister of the present utility model, the distance from bottom tower tray 1 of rectification passage 3 has certain distance A, apart from A be 20～
200mm, preferably 40～80mm.
In demister of the present utility model, the lower end of riser 2 is concordant with tower tray 1 or less than the segment distance of tower tray 1 one, and the two is close
Close connection；The diameter of riser 2 and the percent opening of tower tray 1 can be according to actual operating modes or design requirement, by art technology
Personnel are determined.
In demister of the present utility model, described rectification passage 3, capping plate 5 can weld together with riser 2 or
Global formation.
In demister of the present utility model, described outer tube 4 is preferably cylinder, and the diameter D of outer tube 4 is the diameter d's of riser 2
1.5-6 times, preferably 2-3 times.The upper edge of outer tube 4 be higher by riser 2 on along certain distance P, be that rectification passage 3 is high apart from P
1～8 times, preferably 2～5 times of degree h.The lower edge of outer tube 4 has certain distance B apart from tower tray 1, and less than under rectification passage 3
Edge, the lower edge of outer tube 4 is 5～100mm, preferably 20～50mm apart from B away from tower tray 1.The overall height H of outer tube 4 is rectification passage 3
2.5～10 times of height, preferably 3～5 times.The shape of outer tube 4 can also be in cone cylinder, inversed conical drum or reducing cylinder etc.
Plant or several combinations.
In demister of the present utility model, the inner surface setting groove 6 of described outer tube 4.The axis of groove 6 and outer tube 4
It is parallel, or can form an angle with axis.The section of described groove 6 can also be suitable for rectangle, triangle or circle etc.
Suitable shape.
In demister of the present utility model, the inner surface of described outer tube 4 is preferably provided with cross sectional shape as shown in Figure 4
Groove 6, the section of the groove 6 is made up of a circular arc and straight line section；The wherein intersection point of circular arc and the inner surface circumference of outer tube 4
The tangent line of circular arc and circumference is done respectively, the angle between tangent line is α, α is 5 ° ~ 70 °, preferably 10 ° ~ 40 °；Circular arc and straightway
The tangent line of the circular arc done at intersection point is β with the angle of straightway, and β is 30 ° ~ 110 °, preferably 45 ° ~ 90 °.The depth of groove 6
Beeline on Z, i.e. circular arc and straightway intersection point to the inner surface circumference of outer tube 4 is 0.1 ~ 0.7 times of the wall thickness of outer tube 4, preferably
For 0.3 ~ 0.5 times；Arc between the intersection point of the intersection point and straightway and the inner surface circumference of outer tube 4 of circular arc and the inner surface circumference of outer tube 4
Long X is the 1/80 ~ 1/6 of the inner surface circumference of outer tube 4.
In demister of the present utility model, the lower ending opening of described outer tube 4 can also arrange toothing or waveform
Structure, so as to advantageously in the liquid isolated from the inwall of outer tube 4 into continuous stream drippage.
The junction of each component of demister of the present utility model ensures sealing, does not produce gas leak phenomenon.
Demister of the present utility model, during work, the gas of entrained drip enters riser 2, gas from the lower space of tower tray 1
Mutually entrainment liquid phase rises, and runs into gas phase flow direction after capping plate 5 and changes, i.e., be changed to level or approximate water by ascent direction
Square to, and part droplet due to effect of inertia and capping plate 5 collide, and be attached to capping plate 5 on, the drop of attachment
Become larger, when the gravity that drop arrives greatly its own generation exceedes the climbing power of gas and when making a concerted effort of surface tension of liquid, liquid
Drop is just separated from capping plate 5 surface, completes first time gas-liquid separation；The gas of entrained drip is along level or approximate
Horizontal direction enters rectification passage 3, and because rectification passage 3 has certain length, and the total sectional area of rectification passage 3 is less than riser
2 cross-sectional areas, the gas of the more scattered entrained drip of script velocity attitude, after into rectification passage 3, velocity attitude is changed to
Along the direction of rectification passage 3, velocity attitude comparison rule and concentration, and because circulation area reduces, make the gas of entrained drip
Body enters speed after rectification passage 3 to be increased.When the velocity attitude of the gas of entrained drip changes, partial drop and rectification passage 3
Inwall collides, and is attached on the inwall of rectification passage 3, and then is constantly flowed through the gas blow-out rectification of rectification passage 3 and lead to
Road 3 simultaneously falls, and completes second gas-liquid separation.Meanwhile, in rectification passage 3, because the gas velocity direction of entrained drip changes
Become, part droplet occurs mutually collision under inertia force effect, droplet aggregation becomes big drop, and the gas of entrained drip
Speed increases when flowing through rectification passage 3, exacerbates the motion of drop, improves the probability that droplet is mutually collided, and makes droplet
Easily aggregation becomes big drop, and flows out rectification passage 3 with larger speed with gas.Flow out from rectification passage 3
The gas of entrained drip has larger speed, and velocity attitude compares concentration, and the drop carried secretly continues and outer tube 4 than larger
Inwall collides, and the flow direction of gas is changed again, i.e. the gas of entrained drip is changed to edge by along the direction of rectification passage 3
The circumferencial direction flowing of the inwall of outer tube 4.Due to the gas velocity of entrained drip it is larger, and along opening up fluted 6 outer tube 4
Inwall rotation is flowed up, therefore can the obvious shaving effect of producing ratio.Described shaving effect, refers to the height of entrained drip
Fast gas rotates when flowing up along the inwall of outer tube 4, and drop is constantly thrown toward outer in the presence of inertia force, and drop enters recessed
The groove 6 and arc section in groove 6 is moved, because angle α is 5 ° ~ 70 °, can make drop continue on the arc surface of groove 6
Do and smoothly move, contact aggregation becomes big between drop, until running into, straightway is hindered, aggregation becomes big drop and straightway
Wall clashes into strongly, and is attached on the straightway of the inboard wall groove 6 of outer tube 4, and drop continues to assemble and become big, and then along outer tube 4
Inwall goes downstream；And gas then continues to keep flowing up along the rotation of the inwall of outer tube 4 at a high speed, gas-liquid point is realized for the third time
From, and reduce entrainment.By above-mentioned rectification, acceleration and shaving effect, make fluid that drop is realized in flow process
Separate with gas.
Embodiment 1
Certain wet scrubber tower purifying smoke 150000Nm3/ h, wherein aobvious water concentration is 10～15g/Nm3, Jing this utility model
Show water concentration in demisting final vacuum<0.5g/Nm3, demisting efficiency >=95%.
Embodiment 2
Certain wet scrubber tower purifying smoke 100000Nm3/ h, wherein aobvious water concentration is 12～16g/Nm3, Jing this utility model
Show water concentration in demisting final vacuum<0.6g/Nm3, demisting efficiency >=95%.
Claims (10)
1. a kind of demister, it is characterised in that：Described demister includes several demisting components arranged side by side, each demisting component
Include riser and outer tube, outer tube is arranged on the outside of riser, and riser is fixed on tower tray, the top of riser is arranged
Capping plate, is uniformly arranged some rectification passages on the circumference of riser；Tangential direction level of the rectification passage along riser outer wall
Embedded, the side wall I near outer tube side is tangent with riser tube wall for rectification passage, and opposite side wall II intersects whole with riser tube wall
Circulation road top flushes with capping plate, and bottom is intersected with riser tube wall；Each rectification passage direction of rotation is identical.
2. according to the demister described in claim 1, it is characterised in that：Described rectification passage arranges 1 ~ 12.
3. according to the demister described in claim 1, it is characterised in that：Length l of rectification passage for side wall II length, width
W is the maximum horizontal range between rectification passage two side, and height h is the maximum normal distance between rectification channel roof and bottom；
Wherein length l is 2 ~ 5 times of width w；The cross sectional shape of rectification passage is in rectangle, ellipse, circle, trapezoidal or semicircle
One or more combination.
4. according to the demister described in claim 1, it is characterised in that：The total sectional area of rectification passage is riser cross-sectional area
0.2 ~ 0.9 times.
5. according to the demister described in claim 1, it is characterised in that：The side wall II ends of described rectification passage and riser
Inwall flushes or extend into un-obstructed draft tube interior certain distance m, and m is 0.1 ~ 0.9 times of length l.
6. according to the demister described in claim 5, it is characterised in that：Side wall II ends and riser inwall when rectification passage
When flushing, rectification channel bottom end also flushes with riser inwall；When the side wall II of rectification passage extend into un-obstructed draft tube interior
During certain distance m, rectification channel bottom end flushes with side wall end.
7. according to the demister described in claim 1, it is characterised in that：Rectification channel bottom has certain distance A apart from tower tray, away from
It is 20～200mm from A.
8. according to the demister described in claim 1, it is characterised in that：Described outer tube is cylinder, and outer barrel diameter D is riser
1.5-6 times of diameter d；The upper edge of outer tube be higher by riser on along certain distance P, be the 1～8 of rectification channel height h apart from P
Times；Outer tube lower edge has certain distance B apart from tower tray, and less than the lower edge of rectification passage；The overall height H of outer tube is that rectification passage is high
2.5～10 times of degree.
9. according to the demister described in claim 1, it is characterised in that：The inner surface setting groove of described outer tube and/or convex
Rise；The diameter parallel of raised or groove and outer tube, or form an angle with axis；Described groove or the section of projection is square
In shape, triangle or circle one or more.
10. according to the demister described in claim 1, it is characterised in that：The lower ending opening of described outer tube arranges toothing
Or wavy shaped configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621043983.8U CN206081915U (en) | 2016-09-08 | 2016-09-08 | Demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621043983.8U CN206081915U (en) | 2016-09-08 | 2016-09-08 | Demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206081915U true CN206081915U (en) | 2017-04-12 |
Family
ID=58476212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621043983.8U Active CN206081915U (en) | 2016-09-08 | 2016-09-08 | Demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206081915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803069A (en) * | 2016-09-08 | 2018-03-16 | 中国石油化工股份有限公司 | A kind of demister |
| CN111298523A (en) * | 2018-12-12 | 2020-06-19 | 中国石油化工股份有限公司 | Cyclone demister |
-
2016
- 2016-09-08 CN CN201621043983.8U patent/CN206081915U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803069A (en) * | 2016-09-08 | 2018-03-16 | 中国石油化工股份有限公司 | A kind of demister |
| CN111298523A (en) * | 2018-12-12 | 2020-06-19 | 中国石油化工股份有限公司 | Cyclone demister |
| CN111298523B (en) * | 2018-12-12 | 2022-02-08 | 中国石油化工股份有限公司 | Cyclone demister |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dalian Drepp Environmental Technology Co., Ltd. Assignor: Dalian Frip science and Technology Co., Ltd. Contract record no.: 2018990000349 Denomination of utility model: Cleaning method for demister panel Granted publication date: 20170412 License type: Exclusive License Record date: 20181218 |
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| EE01 | Entry into force of recordation of patent licensing contract |