CN205095542U - Add ring whirl board separator - Google Patents
Add ring whirl board separator Download PDFInfo
- Publication number
- CN205095542U CN205095542U CN201520934190.4U CN201520934190U CN205095542U CN 205095542 U CN205095542 U CN 205095542U CN 201520934190 U CN201520934190 U CN 201520934190U CN 205095542 U CN205095542 U CN 205095542U
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- CN
- China
- Prior art keywords
- wall
- ring
- board separator
- eseparation
- add
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Abstract
The utility model discloses an add ring whirl board separator. Add ring whirl board separator includes that the top has the outer wall of the tube -shape of export, and vertical setting is at outer intramural inside entity, the whirl board of fixed connection between outer wall and inside entity, and eseparation ring, inside entity is used for makeeing the air current more to flow and accelerate fluid speed near the outer wall wall, the whirl board is used for interceping the granule and makes the air current rotatory, the eseparation ring is used for shortening the distance of granule centrifugation motion, the eseparation ring hoop is fixed on the whirl board. The utility model discloses reduced critical separation particle diameter, the realization can be at lower pressure drop within range design whirl board separator.
Description
Technical field
The utility model relates to one and adds ring whirlwind board separator, belong to separating substances technical field, be particularly useful for the gas-liquid separation in flue gas wet cleaning engineering, particularly relate to a kind of theory calculate process when adding design principle and the quantitative design of ring whirlwind board separator structure and the characteristic in separating substances.
Background technology
Whirlwind board separator utilizes swirl vane that gas is rotated, and under the influence of centrifugal force, reaches the object of gas-liquid and gas solid separation.Because its simple structure and good separative efficiency make it apply to the industries such as chemical industry, mining and metallurgy, food, medicine, electric power and environmental protection widely, as for gas-liquid separation in the chemical process such as acrylonitrile and melamine, for the demist in flue gas wet cleaning process, and the preheating of raw material in cement production process.
In wet desulfuration tower, because demisting efficiency is not high, and the scale problems in the subsequent pipeline caused and GGH device occurs often, and this has a strong impact on the operation of whole wet desulfurizing process.Meanwhile, the phenomenon of raining in chimney also causes because demisting efficiency is not high.Whirlwind board separator has the larger droplet that atomizer produces and well removes performance, but the small particle diameter droplet evaporating and generate due to nozzle, droplet collision, flue gas condensing and droplet has very strong flue gas followability, is therefore difficult to be removed.
Mainly concentrate on the research of whirlwind board separator at present and be set up the cloth of swirl vane, or reduce reentrainment by increasing component, these all fundamentally can not increase whirlwind board separator to removing performance compared with small size particle.
Chinese patent CN202983913U, by the multiple little rotational flow plate defroster of parallel combination, reduces flow rotation radius, thus realizes the effect increasing centrifugal force, promotes the eliminating efficiency of small particle diameter droplet.Also there is researcher to pass through to design inside and outside two-pass, shorten two-phase laminated flow distance, promote the separative efficiency of small particle diameter droplet.These designs facilitate the separative efficiency of small particle size droplets, too increase the complexity of apparatus structure simultaneously, and more complicated structure means that its construction difficulty is larger, also means and more easily occurs scale formation.General cyclone separator flexibility is all very poor, in the face of different treating capacities or different separative efficiencies, all need large-scale redesign, then install, optimizing and upgrading can not be carried out on original basis, reach and not only meet separative efficiency but also save time and the object of cost.Therefore, the design of whirlwind board separator, while promotion small size particle separative efficiency, also needs simplify its structural design and increase its flexibility of using, and reduces its operation pressure drop.
Utility model content
The utility model aims to provide one and adds ring whirlwind board separator, this cyclone separator arrangement is simple, thoroughly can solve the low problem of small size particle separative efficiency, can reduce operation pressure drop again principle, and flexible design and upgrading can be carried out according to demand, be convenient to promote.
To achieve these goals, the technical scheme that the utility model adopts is:
One adds ring whirlwind board separator, and its design feature comprises
The outer wall of-tubular, its top has outlet,
-internal entity, it is vertically arranged in outer wall, is used for impelling air-flow flow closer to outer wall wall and accelerate fluid velocity;
-spiral board, it is fixedly connected between outer wall and internal entity, for tackling particle and impelling flow rotation, and
-eseparation ring, it is for shortening the distance of particle centrifugal motion;
Described eseparation ring hoop is fixed on described spiral board.
Thus, internal entity be used for impelling air-flow closer to wall flowing with accelerate fluid velocity, swirl vane be used for interception particle with impel flow rotation, eseparation ring is used for shortening the distance of particle centrifugal motion.Eseparation ring maintains the fluency of whirlwind board separator inner fluid flowing, therefore, can realize upgrading easily on existing structure.Eseparation ring makes indifference in separated region reach the critical separation particles requirement of design, and therefore the utility model reduces critical separation particles, and realization can design whirlwind board separator at low pressure falling in scope.
According to embodiment of the present utility model, can also do further to optimize to the utility model, the technical scheme below for being formed after optimization:
Preferably, described internal entity comprises the top cone, intermediate cylindrical and the inverted bottom cone that are connected successively from top to bottom.The top external diameter of the bottom external diameter of preferred top cone, the external diameter of intermediate cylindrical and bottom cone is equal.The radius r of preferred described intermediate cylindrical is the 1/5-1/3 of exterior radius R.
Preferably, the angle α between the bus of described top cone and horizontal plane is 45 °-80 °, and the angle β between the bus of described bottom cone and horizontal plane is 45 °-60 °.
In order to improve separating effect further, the top of described outer wall is provided with pinch wall, and the outlet bore of this pinch wall is less than the top bore of outer wall.Meanwhile, eseparation ring and pinch wall can adhere to the particle being centrifuged out, and eseparation ring and pinch wall respectively establish circular cowling, are again taken away by air-flow for preventing the particle be attached.
In order to prevent Large stone drop by reentrainment, described pinch wall and eseparation ring are equipped with circular cowling, this circular cowling is taken away by air-flow again for preventing the particle be attached.
Preferably, the length that described circular cowling relative separation ring and pinch wall are given prominence to is 5cm-10cm, and the angle between this circular cowling and eseparation ring is 30 °-60 °, and the angle of this circular cowling and pinch wall is 30 °-60 °.
Described pinch wall is arranged on the identical height region at eseparation ring top, and the contraction of this pinch wall is domatic is 40 °-50 ° with the angle γ of vertical direction.
Preferably, quantity n, highly L and the installation site of described eseparation ring are determined by following formula;
Wherein: d
pfor critical separation particles; μ is dynamic viscosity; ρ
dfor grain density; ρ
gfor fluid density; u
tfor fluid tangential velocity; u
afor fluid axial velocity; L is eseparation ring height; X is the distance of particle apart from center; Y is the spacing of adjacent eseparation ring; S is the distance between adjacent two eseparation rings, s
1+ s
2+ ..s
i...+s
n+ s
n+1=R, R are the radius of outer wall.
Preferably, described spiral board forms primarily of multiple spiral-plate leaf, and the angle of inclination in each spiral-plate leaf relative level face is 45 °-60 °.
Between adjacent two pieces of spiral-plate leafs, there is overlapping region, and the inside and outside width of adjacent two panels overlapping region is consistent, and with a slice overlapping region right boundary between angle theta be 5 °-15 °.
Preferred described circular cowling side is provided with flooding nozzle.Water spray coverage rate is positioned at below circular cowling, and covers circular cowling region.
Compared with prior art, the beneficial effects of the utility model are:
(1) the particle separation attachment be made up of spiral board, eseparation ring, pinch wall and flow-guiding structure, by traction-increasing surface and the distance shortening particle centrifugal motion, solve the problems such as whirlwind board separator separative efficiency is not high, critical separation particles large, operation pressure drop is high.
(2) eseparation ring quantity, height with definite installation site can according to the critical separation particles designed and fluid the velocity magnitude in zones of different in all directions, by using Newton's law, Stokes' law, determine according to the computational process of design, thus realize the critical separation particles requirement that indifference in separated region reaches design.Velocity magnitude in zones of different in all directions can utilize CFD technology to carry out simulation calculation acquisition.
(3) can directly on the basis of original whirlwind board separator structure, according to separative efficiency requirement, eseparation ring is installed in design additional, improve the separative efficiency of former whirlwind board separator, and the existence of eseparation ring large impact can not be produced on the operation of original cleaning system, because can not have an impact to the flow field of former fluid.
(4) circular cowling in eseparation ring and pinch wall, by the near wall regional fluid speed stopped with limit eseparation ring and pinch wall, prevents the droplet particles be attached by the generation of air-flow reentrainment.
(5) the utility model structure is simple, builds difficulty not quite, easily can realize upgrading on former rotational flow plate defroster architecture basics, while realizing improving separative efficiency, can also reduce the pressure drop of operation.
Accompanying drawing explanation
Fig. 1 is the structure principle chart (positive view) of the utility model embodiment;
Fig. 2 is radial section A-A cross section structure schematic diagram in Fig. 1;
Fig. 3 is a kind of swirl vane front view adding ring whirlwind board separator.
In the drawings: 1, export; 2, pinch wall; 3, flooding nozzle; 4, eseparation ring; 5, spiral board; 6, outside wall surface; 7, entrance; 8, top cone; 9, mediate cylindrical; 10, bottom cone; 11, circular cowling; 12, overlapping region; 13, outside wall surface border; 14, upper bound; 15 lower limits; 16, mediate cylindrical border.
Formula
in: d
pfor critical separation particles; μ is dynamic viscosity; ρ
dfor grain density; ρ
gfor fluid density; u
tfor fluid tangential velocity; u
afor fluid axial velocity; L is eseparation ring height; X is the distance of particle apart from center; Y is the spacing of adjacent eseparation ring; S is the distance between adjacent two eseparation rings, s
1+ s
2+ ..s
i..+s
n+ s
n+1=R; N is the quantity of eseparation ring.
Detailed description of the invention
One adds ring whirlwind board separator, and as shown in Figure 1, one adds ring spiral board separator and comprises spiral board 5, be fixed on the eseparation ring 4 on spiral board 5, pinch wall 2, eseparation ring 4 and the circular cowling 11 in pinch wall 2, flooding nozzle 3, bottom cone 10, intermediate cylindrical 9 and top cone 8.Described spiral board 5 is made up of multiple spiral-plate leaf, be weldingly fixed between intermediate cylindrical 9 and outer wall 6, the design of spiral-plate leaf angle of inclination is between 45 °-60 °, inside and outside blade overlapping region 12, width is consistent, θ angle is about 5 °-15 °, its upper bound 14 can be level or inclination, but on all blades with the point of radius all on sustained height, be convenient to be welded and fixed eseparation ring 4, the lower limits 15 of spiral board 5 tilts, and is convenient to guide separated droplet particles and flushing water along wall 6 toward dirty.Quantity n, the height L of eseparation ring 4 and definite installation site can according to the critical separation particles designed and each regional fluid velocity magnitude in all directions, determined by the computational process of theoretical formula and design, i.e. formula (1-1), therefore spacing a, b, c are different.The starting altitude of pinch wall 2 and the top of eseparation ring 4 maintain an equal level or a little higher than it, γ angle is about 40 °-50 °.Circular cowling 11 is installed at eseparation ring 4 with in pinch wall 2 by welding, its outstanding length 5-10cm, 30 °-60 ° are about with eseparation ring 4 and the angle of pinch wall 2, circular cowling 11 on eseparation ring 4 is arranged on the top of eseparation ring 4, and the circular cowling 11 in pinch wall 2 can be arranged between 1/2 and top of pinch wall 2 top.Flooding nozzle 3 after installation should face attachment surface water spray, and water spray coverage rate below circular cowling 11, and should comprise circular cowling 11 region.Bottom cone 10, intermediate cylindrical 9 are hollow with top cone 8, can there be blind plate the top and bottom of intermediate cylindrical 9, radius r is the 1/5-1/3 of outer wall 6 radius R, α angle is about 45 °-80 °, the top maintaining top cone 8 keeps phase co-altitude with the top of pinch wall 2, and β angle is about 30 °-45 °.
During work, bottom cone 10, intermediate cylindrical 9 impel fluid to flow near wall with top cone 8, shorten the distance of stream of liquid droplets to attachment, simultaneously, reducing can the area of flow section, and add the speed of fluid, top cone 8 can also prevent the air-flow reverse direction flow zone line near wall region.Spiral board 5 pairs of large-size particles also impel air-flow that axial velocity is changed into tangential velocity while tackling, and make mixed flow body carry out gas-liquid separation under the influence of centrifugal force.The tilt capabilities of spiral board 5 lower limits 15 guides the Large stone drop and flushing water that are blocked along wall 6 toward dirty, effectively prevents the reentrainment of separated drop.By eseparation ring 4, the attachment of liquid phase is separated under the wall 6 on spiral board top and pinch wall 2 are formed in centrifugal action, wherein the design of eseparation ring 4 not only shortens the distance of drop to attachment centrifugal motion, also the time of droplet by airflow influence is shortened, amassed by traction-increasing surface greatly, the separative efficiency of small particle size droplets is improved greatly.And the quantity n of eseparation ring 4, height L and definite installation site can according to the critical separation particles designed and each region inner fluid velocity magnitude in all directions, by using Newton's law and Stokes' law, determine according to the computational process of design, thus realize the critical separation particles requirement that indifference in separated region reaches design, because eseparation ring 4 can improve separative efficiency, so rotational flow plate defroster can design at low pressure falling in scope.And the existence of eseparation ring 4 does not change the flow field characteristic in former rotational flow plate defroster, be therefore very suitable for the upgrading of old rotational flow plate defroster.Pinch wall 2 forces air flow direction central area, do not have separated ring 4 and the isolated drop of wall 6 then under the effect of inertia and centrifugal force, to be retracted wall 2 to remove, because the droplet particles particle diameter now in air-flow is all very little, so the level height that pinch wall 2 starts to shrink need maintain an equal level with the top of eseparation ring, can not exceed too many, prevent small particle size droplets from taking away with air-flow.Because fluid velocity is comparatively large, circular cowling 11 can prevent being attached droplet particles and again be taken away by air-flow.Flooding nozzle 3 faces attachment surface water spray, and water spray coverage rate below circular cowling 11, and should comprise circular cowling 11 region, can rinse out dirt residual on attachment surface.
Operation principle of the present utility model is as follows:
Fluid-mixing enters from entrance 7 and adds ring spiral board separator, and under the effect of bottom cone 10, air flow direction near wall region, by the guide functions of spiral board 5, the speed of fluid is improved, and axial velocity changes tangential velocity into.Meanwhile, under inertia force effect, first Large stone droplet particles is isolated by spiral board 5, separated drop under the guiding of blade along wall 6 to dirty; The fluid rotated is through eseparation ring 4 region, because the existence of eseparation ring 4 considerably increases bond area, and shorten drop centrifugal motion distance and the time of granule by airflow influence, so facilitate the raising of separate small efficiency, and the critical separation particles of whole demister is reduced greatly, the design pressure drop of rotational flow plate defroster is minimized; Top cone 8 stops fluid countercurrent current to zone line, namely prevents granule to be pulled away under airflow influence; Pinch wall 2 forces fluid to flow to central area from border with contorted, and the granule not having separated ring 4 and wall 6 to adhere to be separated is separated continuing to be retracted under the double action of centrifugal force with inertia force accompanying by wall 2; Circular cowling 11, by stopping the speed with limit fluid, prevents the droplet particles be attached by the generation of air-flow reentrainment; Flooding nozzle 3 faces attachment surface water spray, water spray coverage rate below circular cowling 11, and should comprise circular cowling 11 region, can rinse out dirt residual on attachment surface, be separated droplet particles and flushing water under the guiding of swirl vane, along wall 6 toward dirty; Pure qi (oxygen) stream after finally separated flows out from outlet 1.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the utility model, and be not used in restriction scope of the present utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen into the application's claims limited range.
Claims (10)
1. add a ring whirlwind board separator, it is characterized in that, comprise
The outer wall (6) of-tubular, its top has outlet (1),
-internal entity, it is vertically arranged in outer wall (6), is used for impelling air-flow flow closer to outer wall (6) wall and accelerate fluid velocity;
-spiral board (5), it is fixedly connected between outer wall (6) and internal entity, for tackling particle and impelling flow rotation, and
-eseparation ring (4), it is for shortening the distance of particle centrifugal motion;
Described eseparation ring (4) hoop is fixed on described spiral board (5).
2. according to claim 1ly add ring whirlwind board separator, it is characterized in that, described internal entity comprise be connected successively from top to bottom top cone (8), intermediate cylindrical (9) and inverted bottom cone (10).
3. according to claim 2ly add ring whirlwind board separator, it is characterized in that, angle α between the bus on described top cone (8) and horizontal plane is 45 °-80 °, and the angle β between the bus of described bottom cone (10) and horizontal plane is 45 °-60 °.
4. according to claim 1ly add ring whirlwind board separator, it is characterized in that, the top of described outer wall (6) is provided with pinch wall (2), and the outlet bore of this pinch wall (2) is less than the top bore of outer wall (6).
5. according to claim 4ly add ring whirlwind board separator, it is characterized in that, described pinch wall (2) and eseparation ring (4) are equipped with circular cowling (11), and this circular cowling (11) is taken away by air-flow again for preventing the particle be attached.
6. according to claim 5ly add ring whirlwind board separator, it is characterized in that, the length that described circular cowling (11) relative separation ring (4) and pinch wall (2) are given prominence to is 5cm-10cm, angle between this circular cowling (11) and eseparation ring (4) is 30 °-60 °, and this circular cowling (11) is 30 °-60 ° with the angle of pinch wall (2).
7. according to claim 4ly add ring whirlwind board separator, it is characterized in that, described pinch wall (2) is arranged on the identical height region at eseparation ring (4) top, and the contraction of this pinch wall (2) is domatic is 40 °-50 ° with the angle γ of vertical direction.
8. add ring whirlwind board separator according to claim 1 or 5, it is characterized in that, quantity n, the height L of described eseparation ring (4) and installation site are determined by following formula;
Wherein: d
pfor critical separation particles; μ is dynamic viscosity; ρ
dfor grain density; ρ
gfor fluid density; u
tfor fluid tangential velocity; u
afor fluid axial velocity; L is eseparation ring height; X is the distance of particle apart from center; Y is the spacing of adjacent eseparation ring; S is the distance between adjacent two eseparation rings, s
1+ s
2+ ..s
i...+s
n+ s
n+1=R, R are the radius of outer wall.
9., according to adding ring whirlwind board separator one of claim 1-7 Suo Shu, it is characterized in that, described spiral board (5) forms primarily of multiple spiral-plate leaf, and the angle of inclination in each spiral-plate leaf relative level face is 45 °-60 °.
10. according to claim 9ly add ring whirlwind board separator, it is characterized in that, between adjacent two pieces of spiral-plate leafs, there is overlapping region (12), and the inside and outside width of adjacent two panels overlapping region (12) is consistent, and with a slice overlapping region (12) right boundary between angle theta be 5 °-15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934190.4U CN205095542U (en) | 2015-11-19 | 2015-11-19 | Add ring whirl board separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934190.4U CN205095542U (en) | 2015-11-19 | 2015-11-19 | Add ring whirl board separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205095542U true CN205095542U (en) | 2016-03-23 |
Family
ID=55511354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520934190.4U Withdrawn - After Issue CN205095542U (en) | 2015-11-19 | 2015-11-19 | Add ring whirl board separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205095542U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289116A (en) * | 2015-11-19 | 2016-02-03 | 湖南大学 | Ring whirlwind plate separator |
| CN107983019A (en) * | 2018-01-23 | 2018-05-04 | 武汉浩航环保科技有限公司 | A kind of disc type soot dust granule thing blocker |
| CN109794103A (en) * | 2019-01-24 | 2019-05-24 | 中国石油集团东北炼化工程有限公司 | Combined guide fluid for smoke dewatering device |
| CN115301022A (en) * | 2021-05-06 | 2022-11-08 | 航天长征化学工程股份有限公司 | Efficient pipeline spraying device and process |
-
2015
- 2015-11-19 CN CN201520934190.4U patent/CN205095542U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289116A (en) * | 2015-11-19 | 2016-02-03 | 湖南大学 | Ring whirlwind plate separator |
| CN105289116B (en) * | 2015-11-19 | 2017-05-10 | 湖南大学 | Ring whirlwind plate separator |
| CN107983019A (en) * | 2018-01-23 | 2018-05-04 | 武汉浩航环保科技有限公司 | A kind of disc type soot dust granule thing blocker |
| CN107983019B (en) * | 2018-01-23 | 2023-05-30 | 武汉浩航环保科技有限公司 | Disc type smoke dust particulate matter interceptor |
| CN109794103A (en) * | 2019-01-24 | 2019-05-24 | 中国石油集团东北炼化工程有限公司 | Combined guide fluid for smoke dewatering device |
| CN115301022A (en) * | 2021-05-06 | 2022-11-08 | 航天长征化学工程股份有限公司 | Efficient pipeline spraying device and process |
| CN115301022B (en) * | 2021-05-06 | 2023-08-29 | 航天长征化学工程股份有限公司 | Efficient pipeline spraying device and process |
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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 |
Granted publication date: 20160323 Effective date of abandoning: 20170510 |
|
| AV01 | Patent right actively abandoned |